CN119240368A - Device and method for continuous unloading and automatic storage of bulk materials - Google Patents
Device and method for continuous unloading and automatic storage of bulk materials Download PDFInfo
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- CN119240368A CN119240368A CN202411427569.6A CN202411427569A CN119240368A CN 119240368 A CN119240368 A CN 119240368A CN 202411427569 A CN202411427569 A CN 202411427569A CN 119240368 A CN119240368 A CN 119240368A
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- 239000000463 material Substances 0.000 title claims abstract description 153
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000003860 storage Methods 0.000 title description 4
- 238000009826 distribution Methods 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 4
- 238000007599 discharging Methods 0.000 claims description 75
- 230000003068 static effect Effects 0.000 claims description 26
- 239000013590 bulk material Substances 0.000 claims description 23
- 238000004891 communication Methods 0.000 claims description 10
- 238000012937 correction Methods 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 54
- 239000004576 sand Substances 0.000 description 20
- 239000000377 silicon dioxide Substances 0.000 description 17
- 230000008569 process Effects 0.000 description 10
- 238000002474 experimental method Methods 0.000 description 7
- 230000005484 gravity Effects 0.000 description 4
- 238000012856 packing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000005329 float glass Substances 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G67/00—Loading or unloading vehicles
- B65G67/02—Loading or unloading land vehicles
- B65G67/24—Unloading land vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
- B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
- B65D88/66—Large containers characterised by means facilitating filling or emptying preventing bridge formation using vibrating or knocking devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/32—Filling devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
- B65G2201/045—Sand, soil and mineral ore
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Loading Or Unloading Of Vehicles (AREA)
Abstract
The application provides a device and a method for continuously unloading and automatically warehousing bulk materials, wherein the unloading platform is arranged outside a distribution warehouse, a plurality of unloading openings are formed in the unloading platform, a plurality of material receiving bins are correspondingly arranged at the bottom of each unloading opening, a conveying mechanism at least comprises a first conveying component arranged at the bottom of each material receiving bin, a lifting component is vertically arranged at one end of the first conveying component along the length direction, a material distributing component is arranged at the top of the material distributing warehouse and is far away from the first conveying component, the bulk materials in the material receiving bins can be conveyed to the material distributing component through the first conveying component and the lifting component and distributed to any position of the material distributing warehouse through the material distributing component, the bulk materials can be directly unloaded into the material receiving bins through the unloading openings or firstly unloaded onto the unloading platform, and then the bulk materials on the unloading platform are conveyed to the unloading openings and further enter the material receiving bins. And the flexibility and the universality of buying raw materials and unloading are improved.
Description
Technical Field
The application relates to the technical field of float glass raw material warehousing, in particular to a device and a method for continuously unloading and automatically warehousing bulk materials.
Background
Silica sand used in float glass production is transported to factories in different packing modes such as bulk packing, ton bags and small bags, most factories are limited by regions and traffic, silica sand purchasing can only follow the principle of nearby (purchasing in province), the silica sand adopts a rear-turning dumper to transport, vehicles are directly unloaded into a storage bin after the silica sand is fed, and then the silica sand is lifted into a homogenization warehouse through a belt conveyor and a bucket elevator.
Under the influence of market change, raw materials are purchased nearby, purchasing modes are simplified and immobilized, purchasing cost is increased, silica sand transported in a trans-province mode cannot be transported by using a dump truck, only a semitrailer can be used for bulk transportation, and after the truck arrives at a factory, the truck cannot be directly unloaded into a storage bin for storage due to the fact that a truck body is long, the truck cannot be self-unloading and the like.
Disclosure of Invention
In view of the foregoing drawbacks and deficiencies of the prior art, the present application is directed to an apparatus and method for continuous unloading and automatic warehousing of bulk materials.
In a first aspect, the present application provides a device for continuously unloading and automatically warehousing bulk materials, comprising:
The discharging platform is arranged outside the distribution warehouse and used for bearing a material transporting vehicle filled with bulk materials, and is provided with a plurality of discharging openings;
The material receiving bins are correspondingly arranged at the bottom of each discharging opening;
The conveying mechanism at least comprises a first conveying component arranged at the bottom of the receiving bin, a lifting component is vertically arranged at one end of the first conveying component along the length direction, a material distribution component is arranged at one end of the lifting component far away from the first conveying component, and the material distribution component is arranged at the top in a material distribution warehouse;
The material transporting vehicle can directly discharge the bulk materials into the material receiving bin through the discharging opening, or firstly discharge the bulk materials on the discharging platform, and then send the bulk materials on the discharging platform to the discharging opening to enter the material receiving bin.
According to the technical scheme provided by the embodiment of the application, the receiving bin is provided with the first discharging opening communicated with the bin body and the first valve body positioned at the first discharging opening, and the first valve body is used for switching the communication and the separation between the first discharging opening and the outside.
According to the technical scheme provided by the embodiment of the application, the first conveying assembly comprises a first conveying belt and a first driving element for driving the first conveying belt to move along the length direction of the first conveying belt, and when the first discharging opening is communicated with the outside, the bulk materials in the receiving bin fall onto the first conveying assembly;
The lifting assembly comprises a hopper and a second driving element capable of driving the hopper to vertically lift, and when the hopper is arranged at the tail end of the first conveyor belt along the length direction, the first conveyor belt conveys the bulk materials towards the hopper side and naturally falls into the hopper;
The material distribution assembly comprises a second conveying assembly and a material distribution trolley, wherein the second conveying assembly comprises a second conveying belt and a second driving element used for driving the second conveying belt to move along the length direction of the second conveying belt, and when the second driving element drives the hopper to rise to the second conveying belt, bulk materials in the hopper are unloaded on the second conveying belt and are conveyed into the material distribution trolley by the second conveying belt.
According to the technical scheme provided by the embodiment of the application, the distribution trolley is arranged at the middle position of the transmission path of the second conveyor belt, the bottom of the distribution trolley is provided with the connecting component, the connecting component is provided with the first state and the second state, the connecting component is naturally arranged at the bottom of the second conveyor belt in the first state, and the connecting component is lifted upwards and lifts the second conveyor belt at the position corresponding to the connecting component in the second state.
According to the technical scheme provided by the embodiment of the application, the steel grating is arranged at each discharging opening.
According to the technical scheme provided by the embodiment of the application, the unloading platform is provided with the shovel material component which can move on the unloading platform, and the shovel material component can push the bulk materials unloaded on the unloading platform into the unloading opening.
According to the technical scheme provided by the embodiment of the application, the discharging platform comprises the tiltable plate and the fixed plate hinged with the tiltable plate, each discharging opening is arranged on the fixed plate, a discharging area is arranged on the tiltable plate, a communication channel is respectively arranged between the discharging area and each discharging opening, the tiltable plate is in a horizontal state and an inclined state, the tiltable plate and the fixed plate are in the same plane in the horizontal state, an included angle larger than 90 degrees is formed between the tiltable plate and the fixed plate in the inclined state, and a third driving element is arranged at the bottom of the tiltable plate and is used for driving the tiltable plate to switch between the horizontal state and the inclined state.
According to the technical scheme provided by the embodiment of the application, the unloading area is uniformly provided with a plurality of pressure sensors.
In a second aspect, the present application provides a method for continuously unloading and automatically warehousing bulk materials, which is implemented based on the device for continuously unloading and automatically warehousing bulk materials, and comprises the following steps:
After receiving a signal that the material mover reaches a discharging platform, acquiring the carrying capacity of the material mover and the first pressure corresponding to the carrying capacity;
acquiring the real-time pressure of the bulk material to the unloading area in real time, and acquiring the current pressure if the change rate of the real-time pressure is unchanged within a first preset duration;
if the absolute value of the difference between the current pressure and the first pressure is smaller than or equal to a first preset threshold value, a first instruction is sent, wherein the first instruction is used for indicating the material transporting vehicle to travel away from the material discharging platform;
Acquiring an inclination parameter corresponding to the load capacity according to the current pressure, wherein the inclination parameter at least comprises an inclination angle and an inclination speed;
and driving the tiltable plate to tilt according to the tilting parameter after the material transporting vehicle moves away from the discharging platform, so that the bulk material in the discharging area flows into the discharging opening through the communicating channel, and then the bulk material is discharged into the receiving bin.
According to the technical scheme provided by the embodiment of the application, the pressure sensor comprises a static pressure sensor and a dynamic pressure sensor;
The method for acquiring the real-time pressure of the bulk material to the unloading area in real time specifically comprises the following steps:
Reading a static pressure reading of the static pressure sensor and a dynamic reading of the dynamic pressure sensor in real time;
If the dynamic pressure reading is larger than the static pressure reading at the same moment, and the absolute value of the difference between the dynamic pressure reading and the static pressure reading is larger than or equal to a second preset threshold value, obtaining a correction coefficient according to the static pressure reading and the dynamic pressure reading;
And taking the product of the correction coefficient and the static pressure reading as the real-time pressure at the moment.
Compared with the prior art, the self-unloading platform has the beneficial effects that the self-unloading platform is arranged, and both the self-unloading vehicle and the semi-trailer can be directly opened to the self-unloading platform for unloading. The self-unloading device has the advantages that the self-unloading device can directly align the unloading opening to unload materials into the receiving bin, a driver opens the side wall of the semi-trailer to unload materials on the unloading platform, then the materials on the unloading platform are uniformly delivered to the unloading opening, silica sand enters the receiving bin under the action of gravity, the problem that the semi-trailer cannot be self-unloaded is solved, and the defect of the self-unloading function of the semi-trailer is overcome. The device is positioned at the outer side of the silica sand homogenizing warehouse, is not strictly limited by the field and equipment in the traditional discharging mode, is better suitable for the discharging requirements of different types of vehicles, improves the flexibility and universality of discharging, and simultaneously improves the flexibility of purchasing raw materials and reduces the cost.
Drawings
Fig. 1 is a schematic side view structure of a device for continuously unloading and automatically warehousing bulk materials, which is provided by an embodiment of the application;
Fig. 2 is a schematic front view of a device for continuously unloading and automatically warehousing bulk materials according to an embodiment of the present application;
Fig. 3 is a flow chart of steps of a method for continuously unloading and automatically warehousing bulk materials according to an embodiment of the present application.
The text labels in the figures are expressed as:
1. The device comprises a unloading platform, a shovel assembly, a steel grating, a receiving bin, a bin wall vibrator, a distributing rod, a distributing flashboard, a first conveying assembly, a lifting assembly, a distributing trolley, a distributing warehouse sand pool, a second conveying assembly and a distributing warehouse sand pool.
Detailed Description
The application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the application are shown in the drawings.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
Example 1
As mentioned in the background art, in order to solve the problems in the prior art, the present application provides a device for continuously unloading and automatically warehousing bulk materials, please refer to fig. 1 and 2, which includes:
the discharging platform 1 is arranged outside the distribution warehouse and used for bearing a material transporting vehicle filled with bulk materials, and the discharging platform 1 is provided with a plurality of discharging openings;
the material receiving bins 4 are correspondingly arranged at the bottom of each discharging opening, and are coaxially arranged with each discharging opening;
The conveying mechanism at least comprises a first conveying component 8 arranged at the bottom of the receiving bin 4, a lifting component 9 is vertically arranged at one end of the first conveying component 8 along the length direction, and a material distribution component is arranged at one end of the lifting component 9 away from the first conveying component 8 and is arranged at the top in a material distribution warehouse;
the material mover may directly discharge the bulk material into the receiving bin 4 through the discharge opening, or, first, discharge the bulk material onto the discharge platform 1, and then, send the bulk material on the discharge platform 1 to the discharge opening and then into the receiving bin 4.
Specifically, the receiving bin 4 is further provided with a bin wall vibrator 5, and a sand pool 11 of a distribution bin formed by silica sand falling into the distribution bin is clearly seen in fig. 1 and 2, wherein the distribution bin is a homogenization bin in the use situation.
In a preferred embodiment, the receiving bin 4 is provided with a first discharging opening communicated with the bin body and a first valve body positioned at the first discharging opening, and the first valve body is used for switching the communication and the separation of the first discharging opening and the outside.
Specifically, a material distributing rod 6 is arranged below the first discharging opening of the material receiving bin 4, the first valve body is a material distributing gate 7, and the material distributing rod 6 and the material distributing gate 7 are used for controlling the material flow of the material to be discharged to the first conveying assembly 8.
In a preferred embodiment, the first conveyor assembly 8 comprises a first conveyor belt and a first driving element for driving the first conveyor belt along its length, the bulk material in the receiving bin 4 falling onto the first conveyor assembly 8 when the first discharge opening is in communication with the outside;
the lifting assembly 9 comprises a hopper and a second driving element capable of driving the hopper to vertically lift, when the hopper is placed at the end of the first conveyor along the length direction, the first conveyor conveys the bulk materials towards the hopper side and naturally falls into the hopper;
Specifically, the second driving element is a bucket elevator, and the hopper is a hopper of the bucket elevator.
The material distributing assembly comprises a second conveying assembly 12 and a material distributing trolley 10, wherein the second conveying assembly 12 comprises a second conveying belt and a third driving element for driving the second conveying belt to move along the length direction of the second conveying belt, and when the second driving element drives the hopper to lift to the second conveying belt, the bulk materials in the hopper are discharged on the second conveying belt and are conveyed into the material distributing trolley 10 by the second conveying belt.
In a preferred embodiment, the cloth trolley 10 is disposed at a middle position of the transmission path of the second conveyor belt, the bottom of the cloth trolley 10 is provided with a connecting component, the connecting component has a first state and a second state, the connecting component is naturally disposed at the bottom of the second conveyor belt in the first state, and the connecting component is lifted upwards in the second state and lifts the second conveyor belt at a position corresponding to the connecting component.
Specifically, the distribution trolley 10 is disposed at a middle position of the transmission path of the second conveyor belt, so that bulk materials on the second conveyor belt can flow into the distribution trolley 10 at any position, the connection assembly can be a roller or a sliding plate, and the connection assembly is further connected with a hydraulic lifting device.
Specifically, the connecting assembly is arranged at the starting end side of the distribution trolley 10 near the second conveyor belt (wherein the second conveyor belt is conveyed from right to left in fig. 1, namely, is conveyed towards the direction near the distribution warehouse, so that the left end is a terminal end of the second conveyor belt, the right end is the starting end of the second conveyor belt), when the distribution trolley 10 needs to distribute materials into the distribution warehouse, the connecting assembly is lifted by the hydraulic lifting device so as to jack up the second conveyor belt of the distribution trolley 10 near the starting end side of the second conveyor belt to form a slope, bulk materials on the second conveyor belt slide into the distribution trolley 10 through oblique waves, the width of the distribution trolley 10 is larger than that of the second conveyor belt, the distribution trolley stretches across the second conveyor belt along the width direction of the second conveyor belt, and the bulk materials are discharged into the distribution warehouse on two sides of the second conveyor belt through two blanking pipes of the self-belt;
Further, in the process of lifting the second conveyor belt by the cloth trolley 10, a certain sliding friction may be generated at a contact position between the second conveyor belt and the bottom of the trolley along with the change of the inclination angle of the second conveyor belt and the gravity action of the materials. The trolley needs to exert a certain supporting force and lifting force on the second conveyor belt in the process of lifting the second conveyor belt so as to change the position and angle of the second conveyor belt. This requires a certain stability and coordination between the second conveyor belt and the trolley, which cannot slide completely unconstrained. For example, the contact area of the cart bottom structure with the belt may be controllably slid over a range of forces by the hydraulic lifting device to accommodate the belt lifting process and material flow. Meanwhile, in order to ensure that the material can smoothly slide into the trolley from the belt, special treatment may be required to be performed on the contact surface of the belt and the trolley, such as adding an anti-slip coating or designing a proper shape, so as to reduce unnecessary sliding and ensure the stability of material transmission.
Further, the distribution trolley 10 is provided with a track and a driving device, the track is arranged at the top of the distribution warehouse, and the driving device drives the distribution trolley 10 to slide in the track, so that the purpose of distributing materials to any position on the ground of the distribution warehouse is achieved.
In a preferred embodiment, a steel grating 3 is provided at each of said discharge openings. The steel grating 3 serves to filter out larger impurities mixed into the bulk material.
In a preferred embodiment, the discharging platform 1 is provided with a shovel assembly 2 which can move on the discharging platform 1, and the shovel assembly 2 can push the bulk materials discharged on the discharging platform 1 into the discharging opening.
Optionally, the shovel assembly 2 is a forklift. The bulk material on the discharge platform 1 can be pushed flexibly into the discharge opening.
In a preferred embodiment, the discharging platform 1 comprises a tiltable plate and a fixed plate hinged with the tiltable plate, wherein each discharging opening is arranged on the fixed plate, a discharging area is arranged on the tiltable plate, a communication channel is respectively arranged between the discharging area and each discharging opening, the tiltable plate has a horizontal state and an inclined state, the tiltable plate and the fixed plate are in the same plane in the horizontal state, an included angle larger than 90 degrees is formed between the tiltable plate and the fixed plate in the inclined state, and a fourth driving element is arranged at the bottom of the tiltable plate and is used for driving the tiltable plate to switch between the horizontal state and the inclined state.
Further, the communicating channel is formed by integrally forming the tiltable plate, that is, a channel body with a certain depth is formed at one side of the tiltable plate, the communicating channel is connected with the opening of the discharging area, the opening far away from the discharging area is a discharging opening, the discharging opening is directed to the discharging opening, the discharging opening is located at the side of the fixed plate close to the tiltable plate, so that after the tiltable plate is tilted, bulk materials can flow into the communicating channel rather than into other areas of the tiltable plate except the communicating channel, the feeding opening can be set to be in a horn shape or a slope shape, and the width of the feeding opening of all the communicating channels can completely cover the discharging area (when the discharging area is rectangular, the width of each feeding opening covers the length of the rectangle, and when the discharging area is circular, the width of each feeding opening covers the diameter of the circle).
In particular, in practical applications of the discharge platform 1, the tiltable plate and the fixed plate together form the main body structure of the discharge platform 1. The fixed plate is provided with a plurality of discharging openings, and the discharging area on the tiltable plate is used for bearing the bulk materials discharged from the material conveying vehicle. The communication channels between the discharge area and each of the discharge openings ensure that material can smoothly flow to the discharge openings when the tiltable plate is tilted.
Optionally, the fourth driving element is a hydraulic cylinder, and in the installation process of the unloading platform 1, one end of the hydraulic cylinder is connected to a specific position at the bottom of the tiltable plate in a hinged manner, and the other end of the hydraulic cylinder is connected to the ground. The number and positions of the hydraulic cylinders are reasonably arranged according to the size and bearing capacity of the tiltable plate so as to ensure that the tiltable plate can stably and reliably act in the tilting process.
The hydraulic cylinder is activated after the bulk material is discharged by the material mover at the discharge area of the tiltable plate. The hydraulic cylinder begins to extend to push the tiltable plate to slowly rotate around a hinge point with the fixed plate. And along with the continuous extension of the hydraulic cylinder, the included angle between the tiltable plate and the fixed plate is gradually increased until the tilting state of more than 90 degrees is reached. During this process, the bulk material of the discharge zone flows along the communication channel under gravity to the discharge opening in the stationary plate and further falls into the receiving bin 4.
When the unloading is completed, the hydraulic cylinder contracts to drive the tiltable plate to reversely rotate, and gradually returns to a horizontal state, and the tiltable plate and the fixed plate are in the same plane, so that preparation is made for the next unloading.
In the whole operation process, the stroke and the speed of the hydraulic cylinder are precisely controlled, so that the smooth switching of the tiltable plate between the horizontal state and the tilting state can be realized, and the efficient and safe unloading process is ensured.
In a preferred embodiment, a plurality of pressure sensors are uniformly arranged on the discharging area.
Example 2
On the basis of embodiment 1, this embodiment provides a method for continuously unloading and automatically warehousing bulk materials, which is implemented based on the device for continuously unloading and automatically warehousing bulk materials as described above, and is used for applications such as semitrailers, in which the size is longer and cannot match the application scenario of a traditional unloading system, and please refer to fig. 3, and the method includes the following steps:
S1, after receiving a signal that the material mover reaches the unloading platform 1, acquiring the carrying capacity of the material mover and the first pressure corresponding to the carrying capacity;
Specifically, after the semitrailer enters the unloading platform 1, the weight of the silica sand loaded by the material handling vehicle at this time can be called or queried, and the first pressure is obtained through conversion.
Further, a mathematical model of the relation between the weight of the silica sand and the pressure of the silica sand on the discharging platform is established in advance through experiments and mechanical analysis. Considerations include the packing morphology, distribution uniformity, etc. that affect pressure. Firstly, placing silica sand with a certain weight and a known stacking state on an experiment platform which is the same as a material and a structure of a discharging platform, measuring the pressure born by the experiment platform, repeating experiments with different weights for a plurality of times, obtaining a plurality of groups of experiment data, wherein the experiment data comprise a plurality of groups of weights and the pressure corresponding to each group of weights, and further obtaining the functional relation between the pressure and the weight according to the plurality of groups of experiment data. After the weight of the silica sand loaded by the material mover at the time is obtained, the corresponding first pressure can be obtained by calculating the functional relation of the silica sand.
S2, acquiring real-time pressure of the bulk material to the unloading area in real time, and acquiring current pressure if the change rate of the real-time pressure is kept unchanged within a first preset time period;
Specifically, the material transporting vehicle is stopped on the tiltable plates except the unloading area, so that the real-time pressure at each moment can be obtained by reading the average value of a plurality of pressure sensors arranged in the unloading area at each moment, and if the change rate of the real-time pressure is kept unchanged within a first preset time period, the condition that the bulk materials contained in the material transporting vehicle are unloaded is indicated, and at the moment, all silica sand is poured into the unloading area of the unloading platform 1. The first preset time period is illustratively 3s.
S3, if the absolute value of the difference between the current pressure and the first pressure is smaller than or equal to a first preset threshold value, a first instruction is sent, wherein the first instruction is used for indicating the material transporting vehicle to drive away from the material discharging platform 1;
And if the absolute value of the difference between the current pressure and the first pressure is smaller than or equal to a first preset threshold value, indicating that the bulk materials are not polluted or lost in the transportation process. The first preset threshold may be, for example, 10N.
S4, acquiring an inclination parameter corresponding to the carrying capacity according to the current pressure, wherein the inclination parameter at least comprises an inclination angle and an inclination speed;
Alternatively, the inclination parameter is obtained by means of model training through the current pressure, and the input of the model is the current pressure and the output is the inclination parameter.
Illustratively, a larger amount of material will create a greater pressure on the discharge platform 1, which requires an appropriate increase in the inclination angle in order to ensure that the material can smoothly fall through the discharge opening into the receiving bin 4. Thus, the gravity can be used to make the material flow more smoothly. When the amount of material reaches a certain proportion (e.g. 70%) of the maximum load capacity of the discharge platform 1, the inclination may need to be increased to a certain value (e.g. 30 ° to the horizontal) to ensure that material does not build up on the platform to block the discharge opening.
However, the inclination angle cannot be too large, because too large an angle may cause too high a material flow speed, impact on the receiving bin 4 and the subsequent conveying equipment, and even material splashing may be caused, resulting in potential safety hazards and material loss.
The smaller amount of material is less pressurized against the discharge platform 1, in which case the inclination angle can be reduced appropriately. Thus, the smooth flow of the materials can be ensured, and the abrasion and energy consumption of the equipment can be reduced. For example, when the amount of material is small (e.g., only 20% of the maximum load capacity of the discharge deck 1), the inclination angle may be adjusted to be about 15 ° to the horizontal direction.
In general, too high a tilting speed is not preferable when the amount of the material is large. Because the rapid tilting may cause the material to instantaneously generate a large impact force, the equipment and the structure are damaged. Illustratively, when the amount of material is large, the rate of tilting may be controlled at a relatively slow level (e.g., 5 ° to 10 ° per minute) to ensure that the material flows smoothly to the discharge opening. Meanwhile, the slower tilting speed is also beneficial to operators to better control the unloading process, and the tilting angle and the tilting speed are timely adjusted so as to adapt to different material amounts and working conditions. When the amount of the material is small, the tilting speed can be properly increased. Because the amount of the materials is small, the generated impact force is relatively small, and the higher tilting speed can improve the unloading efficiency and shorten the unloading time. When the amount of material is small, the tilting speed can be increased to 15 to 20 degrees per minute, but the tilting speed cannot be too high, so as not to cause splashing of the material or cause unnecessary vibration to the equipment.
And S5, driving the tiltable plate to tilt according to the tilting parameters after the material transporting vehicle moves away from the discharging platform 1, so that the bulk materials in the discharging area flow into the discharging opening through the communicating channel, and then the bulk materials are discharged into the receiving bin 4.
In a preferred embodiment, the pressure sensor comprises a static pressure sensor and a dynamic pressure sensor;
The method for acquiring the real-time pressure of the bulk material to the unloading area in real time specifically comprises the following steps:
And particularly, if the bulk material has poor flowability, the static pressure reading of the static pressure sensor can be directly used as the real-time pressure, and when the bulk material has good flowability, the magnitude of downward pressure can be influenced in the discharging process of the material conveying vehicle, so that the static downward pressure can be obtained in the following mode.
If the dynamic pressure reading is larger than the static pressure reading at the same moment, and the absolute value of the difference between the dynamic pressure reading and the static pressure reading is larger than or equal to a second preset threshold value, obtaining a correction coefficient according to the static pressure reading and the dynamic pressure reading;
And taking the product of the correction coefficient and the static pressure reading as the real-time pressure at the moment.
Illustratively, the static pressure sensor measures a pressure value P1 at rest, while the dynamic pressure sensor monitors an average pressure value P2 as material flows. If P2 is significantly greater than P1, this indicates that the material flow is producing a large dynamic pressure and that the results of the static pressure sensor need to be modified. The correction factor may be calculated as P2/P1, and then the subsequent measurement of the static pressure sensor is multiplied by the correction factor to obtain a pressure value closer to the actual situation.
Through the mode that dynamic pressure sensor and static pressure sensor combined together, can consider the influence of mobility difference to pressure measurement effectively, improve pressure measurement's accuracy and reliability, silica sand mobility in this embodiment is better, can adopt this kind of mode to promote pressure monitoring's accuracy to promote control accuracy.
The principles and embodiments of the present application have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present application and its core ideas. The foregoing is merely illustrative of the preferred embodiments of the application, and it will be appreciated that numerous modifications, adaptations and variations of the application can be made by those skilled in the art without departing from the principles of the application, and that other features and advantages of the application can be combined in any suitable manner, and that no improvement in the design or design of the application is intended to be applied directly to other applications.
Claims (10)
1. An apparatus for continuous unloading and automatic warehousing of bulk materials, comprising:
the discharging platform (1) is arranged outside the distributing warehouse and used for bearing a material transporting vehicle filled with bulk materials, and the discharging platform (1) is provided with a plurality of discharging openings;
The material receiving bins (4) are correspondingly arranged at the bottom of each discharging opening;
The conveying mechanism at least comprises a first conveying component (8) arranged at the bottom of the receiving bin (4), a lifting component (9) is vertically arranged at one end of the first conveying component (8) along the length direction, a cloth component is arranged at one end of the lifting component (9) away from the first conveying component (8), and the cloth component is arranged at the top in a cloth warehouse;
The material mover can directly discharge the bulk material into the material receiving bin (4) through the discharge opening, or firstly discharge the bulk material on the discharge platform (1), and then send the bulk material on the discharge platform (1) to the discharge opening and then enter the material receiving bin (4).
2. The device for continuously unloading and automatically warehousing bulk materials according to claim 1, wherein the receiving bin (4) is provided with a first discharging opening communicated with the bin body and a first valve body positioned at the first discharging opening, and the first valve body is used for switching the communication and the separation of the first discharging opening and the outside.
3. The device for continuous unloading and automatic warehousing of bulk materials according to claim 2, characterized in that said first conveyor assembly (8) comprises a first conveyor belt and a first driving element for driving said first conveyor belt along its length, said bulk materials in said receiving bin (4) falling onto said first conveyor assembly (8) when said first discharge opening is in communication with the outside;
the lifting assembly (9) comprises a hopper and a second driving element capable of driving the hopper to vertically lift, when the hopper is arranged at the tail end of the first conveyor belt along the length direction, the first conveyor belt conveys the bulk materials towards the hopper side and naturally falls into the hopper;
The material distribution assembly comprises a second conveying assembly (12) and a material distribution trolley (10), wherein the second conveying assembly (12) comprises a second conveying belt and a second driving element used for driving the second conveying belt to move along the length direction of the second conveying belt, and when the second driving element drives the hopper to lift to the second conveying belt, bulk materials in the hopper are unloaded on the second conveying belt and are conveyed into the material distribution trolley (10) through the second conveying belt.
4. The apparatus according to claim 3, wherein the distribution trolley (10) is disposed at a middle position of the transmission path of the second conveyor belt, the bottom of the distribution trolley (10) is provided with a connecting assembly, the connecting assembly has a first state and a second state, the connecting assembly is naturally disposed at the bottom of the second conveyor belt in the first state, and the connecting assembly is lifted upward in the second state and lifts the second conveyor belt at a position corresponding to the connecting assembly.
5. The device for continuous unloading and automatic warehousing of bulk materials according to claim 1, characterized in that a steel grating (3) is arranged at each unloading opening.
6. The device for continuously unloading and automatically warehousing bulk materials according to claim 1, wherein a shovel assembly (2) capable of moving on the unloading platform (1) is arranged on the unloading platform (1), and the shovel assembly (2) can push the bulk materials unloaded on the unloading platform (1) into the unloading opening.
7. The device for continuously unloading and automatically warehousing bulk materials according to claim 1, wherein the unloading platform (1) comprises an inclinable plate and a fixed plate hinged with the inclinable plate, each unloading opening is formed in the fixed plate, the inclinable plate is provided with an unloading area, a communication channel is respectively formed between the unloading area and each unloading opening, the inclinable plate is in a horizontal state and an inclined state, the inclinable plate and the fixed plate are in the same plane in the horizontal state, an included angle larger than 90 degrees is formed between the inclinable plate and the fixed plate in the inclined state, and a third driving element is arranged at the bottom of the inclinable plate and used for driving the inclinable plate to switch between the horizontal state and the inclined state.
8. The apparatus for continuously discharging and automatically warehousing bulk materials according to claim 7, wherein the plurality of pressure sensors are uniformly arranged on the discharging area.
9. A method for continuously unloading and automatically warehousing bulk materials, which is realized based on the device for continuously unloading and automatically warehousing bulk materials according to claim 8, and is characterized by comprising the following steps:
after receiving a signal that the material mover reaches a discharging platform (1), acquiring the carrying capacity of the material mover and the first pressure corresponding to the carrying capacity;
acquiring the real-time pressure of the bulk material to the unloading area in real time, and acquiring the current pressure if the change rate of the real-time pressure is unchanged within a first preset duration;
If the absolute value of the difference between the current pressure and the first pressure is smaller than or equal to a first preset threshold value, a first instruction is sent, wherein the first instruction is used for indicating the material transporting vehicle to travel away from the unloading platform (1);
Acquiring an inclination parameter corresponding to the load capacity according to the current pressure, wherein the inclination parameter at least comprises an inclination angle and an inclination speed;
and after the material transporting vehicle moves away from the discharging platform (1), driving the tiltable plate to tilt according to the tilting parameter, so that the bulk material in the discharging area flows into the discharging opening through the communicating channel, and then the bulk material is discharged into the receiving bin (4).
10. The method for continuously unloading and automatically warehousing bulk materials according to claim 8, wherein the pressure sensor comprises a static pressure sensor and a dynamic pressure sensor;
The method for acquiring the real-time pressure of the bulk material to the unloading area in real time specifically comprises the following steps:
Reading a static pressure reading of the static pressure sensor and a dynamic reading of the dynamic pressure sensor in real time;
If the dynamic pressure reading is larger than the static pressure reading at the same moment, and the absolute value of the difference between the dynamic pressure reading and the static pressure reading is larger than or equal to a second preset threshold value, obtaining a correction coefficient according to the static pressure reading and the dynamic pressure reading;
And taking the product of the correction coefficient and the static pressure reading as the real-time pressure at the moment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411427569.6A CN119240368A (en) | 2024-10-14 | 2024-10-14 | Device and method for continuous unloading and automatic storage of bulk materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411427569.6A CN119240368A (en) | 2024-10-14 | 2024-10-14 | Device and method for continuous unloading and automatic storage of bulk materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN119240368A true CN119240368A (en) | 2025-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411427569.6A Pending CN119240368A (en) | 2024-10-14 | 2024-10-14 | Device and method for continuous unloading and automatic storage of bulk materials |
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| Country | Link |
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| CN (1) | CN119240368A (en) |
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- 2024-10-14 CN CN202411427569.6A patent/CN119240368A/en active Pending
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