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CN112317315A - Sand and stone separator safety device of mixing station - Google Patents

Sand and stone separator safety device of mixing station Download PDF

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Publication number
CN112317315A
CN112317315A CN202011323024.2A CN202011323024A CN112317315A CN 112317315 A CN112317315 A CN 112317315A CN 202011323024 A CN202011323024 A CN 202011323024A CN 112317315 A CN112317315 A CN 112317315A
Authority
CN
China
Prior art keywords
sand
baffle
stone separator
separator
stone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011323024.2A
Other languages
Chinese (zh)
Inventor
温以泽
刘文清
吴伟城
赖鸿源
赵佳祥
林胜东
王裕维
张鑫
童粤辉
陈昌威
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Shaogang Engineering Technology Co Ltd
Original Assignee
Guangdong Shaogang Engineering Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Shaogang Engineering Technology Co Ltd filed Critical Guangdong Shaogang Engineering Technology Co Ltd
Priority to CN202011323024.2A priority Critical patent/CN112317315A/en
Publication of CN112317315A publication Critical patent/CN112317315A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens

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  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Abstract

The invention relates to a sand-stone separator safety device of a mixing station, which comprises a limit switch, a first baffle and an adjusting mechanism connected with the first baffle; the first baffle is arranged above the opposite side of the sand-stone separator for placing the mixer truck, the lower side of the first baffle is hinged with the sand-stone separator, and the adjusting mechanism is used for adjusting the rotating angle of the first baffle; the limit switch is arranged on the sand-stone separator and corresponds to the mixer truck, and the limit switch is in signal connection with the adjusting mechanism; when the mixer truck is close to or far away from the sand-stone separator, the limit switch transmits a signal to the adjusting mechanism, so that the adjusting mechanism adjusts the first baffle plate to be in an inclined or vertical state, and the discharging range is enlarged or reduced. The invention improves the use safety of the sand-stone separator, can automatically realize the increase or reduction of the unloading range of the mixer truck by utilizing the rotation of the first baffle, and prevents potential safety hazards caused by sand-stone rushing out of the sand-stone separator.

Description

Sand and stone separator safety device of mixing station
Technical Field
The invention relates to the technical field of safety protection of sand treatment, in particular to a safety device of a sand-stone separator of a mixing station.
Background
Because of improving the trucd mixer and washing the efficiency of unloading, the trucd mixer washs and unloads the material and accelerate, discovery in the production of mixing plant sand and stone separator, when the stirring concrete transport vechicle washs the churn and discharges waste concrete, because of the grit is heavier than water, need lean on water to carry over the grit out, operating personnel need high-speed rotatory churn just discharge water and grit out easily. And after the high-speed rotary stirring drum easily washes water and sand and stones to the sand-stone separator, the sand-stone separator is washed between the screen and the fixing frame of the sand-stone separator due to the lower screen body baffle, so that the screen body of the sand-stone separator is easily separated from the fixing frame, and equipment safety faults are caused. In addition, after water and sand are flushed to the sand-stone separator by the high-speed rotating stirring cylinder, sand is easily flushed out of the sand-stone separator, the sand-stone separator is generally about 3 m high, the potential safety hazard that others are injured by falling objects at a high position can be caused, the position of the sand-stone separator entering the stirring truck is not limited by a vehicle, and the potential safety hazard that the stirring truck collides the sand-stone separator can be easily caused.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a sand-stone separator safety device for a mixing station. The invention improves the use safety of the sand-stone separator, can automatically realize the increase or reduction of the unloading range of the mixer truck by utilizing the rotation of the first baffle, and prevents potential safety hazards caused by sand-stone rushing out of the sand-stone separator.
The technical purpose of the invention is realized by the following technical scheme: a sand-stone separator safety device of a mixing station comprises a limit switch, a first baffle and an adjusting mechanism connected with the first baffle;
the first baffle is arranged above the opposite side of the sand-stone separator for placing the mixer truck, the lower side of the first baffle is hinged with the sand-stone separator, and the adjusting mechanism is used for adjusting the rotating angle of the first baffle;
the limit switch is arranged on the sand-stone separator and corresponds to the mixer truck, and the limit switch is in signal connection with the adjusting mechanism;
when the mixer truck is close to or far away from the sand-stone separator, the limit switch transmits a signal to the adjusting mechanism, so that the adjusting mechanism adjusts the first baffle plate to be in an inclined or vertical state to enlarge or reduce the discharging range.
In one embodiment, the adjustment range of the rotation angle of the first baffle is as follows: the angle formed by the first baffle and the horizontal plane is 65-90 degrees.
In one embodiment, the adjusting mechanism comprises a rotary cylinder arranged at the hinged position of the first baffle and the sand-stone separator, the rotary cylinder is linked with an electromagnetic valve, and the electromagnetic valve is in signal connection with the limit switch.
In one embodiment, the height of the upper side of the first baffle is greater than that of a discharge notch of the mixer truck, and the distance between the lower side of the first baffle and a screen body of the sand-stone separator is 50-100 mm.
In one embodiment, the stirring truck further comprises a second baffle plate for shielding the bearing of the transmission crankshaft of the sand-stone separator, the second baffle plate is arranged on one side of the sand-stone separator, where the stirring truck is parked, and the second baffle plate is obliquely arranged from the sand-stone separator to the stirring truck from high to low.
In one embodiment, the height of the upper side of the second baffle is greater than that of the side wall of the sand-stone separator, and the height of the upper side of the second baffle is less than that of the discharge notch of the mixer truck.
In one embodiment, a plurality of spray pipes are erected above the screen body of the sand-stone separator, and a plurality of through holes matched with the spray pipes are formed in the first baffle plate and the second baffle plate.
In one embodiment, a turnover plate is arranged between every two water spraying pipes, the turnover plates are combined to form the second baffle, one side of each turnover plate is hinged with the sand-gravel separator, and the other side of each turnover plate is a movable side.
In one embodiment, the outer side of the second baffle plate is printed with a collision avoidance mark.
In one embodiment, a retaining wall is further arranged on the outer side of the lower end of the second retaining plate and used for limiting the parking position of the mixer truck.
In conclusion, the invention has the following beneficial effects:
1. the invention improves the use safety of the sand-stone separator, can automatically realize the increase or reduction of the unloading range of the mixer truck by utilizing the rotation of the first baffle, and prevents potential safety hazards caused by sand-stone rushing out of the sand-stone separator.
2. In the discharging process, the first baffle and the horizontal plane form a 65-degree inclined arrangement, so that the discharging area is increased, the extension of a discharging opening of the mixer truck can not be blocked, meanwhile, the baffle on the opposite side of the mixer truck parked by the sand-stone separator can be increased, and sand and stone can be prevented from falling out of the sand-stone separator in the discharging process. And unload and end, first baffle reverts vertical state, and first baffle forms 90 with the horizontal plane promptly, can not inwards incline the skew and influence the screen cloth and overhaul or observe the sand and stone separator is inside.
3. The second baffle is 45 slope settings to shelter from sand and stone separator's transmission crankshaft axle contract, also play the effect that forms the apron protection to the gap that produces between sand and stone separator and the road surface simultaneously, avoid the grit at the in-process of empting the material of unloading, fall into transmission crankshaft or sand and stone separator bottom and be difficult to clear away, thereby avoid influencing sand and stone separator's normal work.
4. In order to facilitate the operation and maintenance of the transmission crankshaft bearing contract positioned below the second baffle after installation, the second baffle is formed by combining a plurality of turnover plates, one side of each turnover plate is hinged, and the other side of each turnover plate is movable and can be opened and closed, so that a maintainer can conveniently inspect and maintain the transmission crankshaft bearing contract.
Drawings
FIG. 1 is a front view of a mixing station sand separator safety device of the present invention;
FIG. 2 is a side view of a blender station sand separator safety device of the present invention.
In the figure: 1-sand-stone separator, 11-spray pipe, 2-first baffle, 3-limit switch, 4-rotary cylinder, 5-electromagnetic valve, 6-second baffle and 7-retaining wall.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
As shown in fig. 1 and 2, a sand-stone separator safety device of a mixing station comprises a limit switch 3, a first baffle 2 and an adjusting mechanism connected with the first baffle 2;
the first baffle 2 is arranged above the opposite side of the sand-stone separator 1 for placing the mixer truck, the lower side of the first baffle 2 is hinged with the sand-stone separator 1, and the adjusting mechanism is used for adjusting the rotating angle of the first baffle 2;
the limit switch 3 is arranged on the sand-stone separator 1 and corresponds to the mixer truck, and the limit switch 3 is in signal connection with the adjusting mechanism;
when the mixer truck is close to or far away from the sand-stone separator 1, the limit switch 3 transmits a signal to the adjusting mechanism, so that the adjusting mechanism adjusts the first baffle 2 to be in an inclined or vertical state to increase or decrease the discharging range.
The invention improves the use safety of the sand-stone separator 1, can automatically utilize the rotation of the first baffle 2 to enlarge or reduce the unloading range of the mixer truck by the control of the limit switch 3, simultaneously the first baffle 2 prevents sand from rushing out of the sand-stone separator 1 to cause potential safety hazard, and the first baffle 2 can play the role of edge safety protection when the sand-stone separator 1 is not used, and can not influence the maintenance of the sand-stone separator 1.
During the operation of the sand-stone separator 1, the applicant finds that the sand-stone separator 1 filters sand with different particle sizes in waste concrete by means of the sieving movement of the sieve body, and the sieve body of the sand-stone separator 1 is generally horizontally arranged, so that the installation and the operation of the transmission device are convenient. After the mixer truck conveys the sand to the upper part of the sand-stone separator 1, the sand is discharged through a high-speed rotating mixing drum carried by the mixer truck, and usually, in order to accelerate the cleaning and discharging, a proper amount of water is also filled, so that the water further carries the sand out and falls onto the sand-stone separator 1. Then, at the unloading in-process of trucd mixer, grit and water are from the eminence whereabouts, current sandstone separation machine 1 does not have higher baffle to prevent that the grit from rushing out of sandstone separation machine 1, this is that it can hinder the trucd mixer to get into and the alignment of discharge opening to avoid higher baffle, simultaneously, also can influence the receiving area of sandstone separation machine 1, and, if only simply vertically increase the baffle, then can't observe the trucd mixer discharge opening position easily, the grit that the trucd mixer was unloaded out also can cause stronger impact force to the baffle, thereby need often change the baffle. Therefore, the applicant sets the first baffle 2 with an adjustable angle on the basis of the added baffles, the limit switch 3 can be a mechanical contact switch or an infrared induction switch under the control of the limit switch 3, when the mixer truck approaches the sand-rock separator 1, the limit switch 3 outputs a starting signal when sensing the mixer truck, and the starting signal can be in signal connection with an automatic water filling device to start water filling of a mixing drum of the mixer truck; meanwhile, the limit switch 3 also outputs a signal to the adjusting mechanism, so that the adjusting mechanism adjusts the first baffle 2 to be in an inclined position, namely, the hinged part of the lower side of the first baffle 2 and the sand-stone separator 1 is used as a rotating shaft, and the upper side of the first baffle 2 is turned outwards, so that the unloading range is enlarged. And leave after the trucd mixer is unloaded, limit switch 3 output stop signal, and the automatic device of watering stops, and first baffle 2 is rotatory to get back to vertical state simultaneously, plays and faces limit safety protection effect, is convenient for 1 screen cloth of sand and stone separator and transmission system's maintenance.
In addition, for the trucd mixer of adaptation size, length differ, the angle of rotation's of first baffle 2 control range is: first baffle 2 and horizontal plane institute become the angle and be 65 ~ 90, unload the in-process promptly, first baffle 2 and horizontal plane form 65 slope settings to increase the area of unloading, can not block stretching into of trucd mixer discharge opening, can increase the baffle of the opposite side that the trucd mixer was parked to sand and stone separator 1 simultaneously again, prevent to unload the in-process grit and fall outside sand and stone separator 1. And unload and end, first baffle 2 returns vertical state, and first baffle 2 forms 90 with the horizontal plane promptly, can not inwards squint and influence the screen cloth and overhaul or observe the sand and stone separator 1 inside.
In one embodiment, the adjusting mechanism comprises two rotary cylinders 4 arranged at the hinged position of the first baffle 2 and the sand-stone separator 1, the two rotary cylinders 4 are respectively arranged at two ends of the hinged position, the rotary cylinders 4 are linked with an electromagnetic valve 5, and the electromagnetic valve 5 is in signal connection with the limit switch 3. The mechanism of adjusting the rotation angle of the first baffle 2 adopts a rotary cylinder 4, the rotary cylinder 4 is a pneumatic actuator which utilizes compressed air to drive an output shaft to do reciprocating rotary motion within a certain angle range, and the mechanism has the characteristics of stability, reliability and accurate precision, the rotary cylinder 4 is convenient to set, and utilizes an electromagnetic valve 5 to receive signals and control the opening and closing of the rotary cylinder 4 so as to achieve the purpose that the first baffle 2 forms the two rotation angles. In addition, no matter which angle first baffle 2 rotates, the upside height of first baffle 2 all should be greater than the discharge chute mouth height of trucd mixer, first baffle 2 sets up the opposite side that the trucd mixer was parked at sand separator 1, and also incline to the outside of sand separator 1 during the upset, can not collide the trucd mixer and the discharge chute that stretches over, the sieve body of first baffle 2 downside and sand separator 1 is apart from 50 ~ 100mm, this is the amplitude distance when in order to reserve the sieve body and sieve, the amplitude scope of sieve body is about 15mm, first baffle 2 leaves sufficient distance with the sieve body of sand separator 1, avoid the sieve body vibration and influence first baffle 2 and relevant adapting unit and structure.
In addition, according to the arrangement mode, the adjusting mechanism can also be provided with a motor to replace the rotary cylinder 4, and the same rotating function can be realized, but the motor is relatively easy to have the defects of poor signal receiving, inaccurate rotating angle and difficulty in fixing the first baffle plate 2. In addition, the adjusting mechanism can also be arranged as a cylinder in linear motion and is arranged on the outer side of the first baffle plate 2, one end of the cylinder is welded with the fixing frame of the sand-stone separator 1, and the other end of the cylinder is hinged with the first baffle plate 2, so that the lifting motion of the cylinder can be realized to control the rotation of the first baffle plate 2.
In one embodiment, the safety device further comprises a second baffle 6 for shielding the transmission crankshaft bearing of the sand-stone separator 1, the second baffle 6 is arranged at one side of the sand-stone separator 1 for parking the mixer truck, and the second baffle 6 is obliquely arranged from the sand-stone separator 1 to the mixer truck from high to low. Second baffle 6 is 45 slope settings, contract with the transmission crankshaft axle that shelters from sand and stone separator 1, also play the gap formation apron protection's that produces between sand and stone separator 1 and the road surface effect simultaneously, avoid the grit in the in-process of empting and unloading, fall into transmission crankshaft or sand and stone separator 1 bottom and be difficult to clear away, thereby avoid influencing the normal work of sand and stone separator 1, especially transmission crankshaft's transmission and the vibration of screen frame all need certain range, the grit falls into and blocks sand and stone separator 1 therein, can cause the injury to the inner structure and the various mechanical structure of equipment to a certain extent, and service life is influenced. The height of the upper side of the second baffle 6 is greater than that of the side wall of the sand-stone separator 1, and the height of the upper side of the second baffle 6 is less than that of the discharge notch of the mixer truck. The upside edge of second baffle 6 can be used for forming to 1 inboard sheltering from of sand and stone separator, and then can fall outside sand and stone separator 1 from this side when avoiding the grit to vibrate on the screen frame of sand and stone separator 1, but second baffle 6 can not be too high, avoids stretching into and unloading of the discharge notch that influences the trucd mixer.
In one embodiment, a plurality of spray pipes 11 are erected above the screen body of the sand-stone separator 1, and a plurality of through holes matched with the spray pipes 11 are arranged on the first baffle plate 2 and the second baffle plate 6. The water spraying pipes 11 are arranged for conveniently washing the upper surface of the screen body of the sand-stone separator 1 and enabling sand to be further impacted by water to achieve a better screening effect, and therefore the first baffle 2 and the second baffle 6 are provided with through holes matched with the first baffle 2 and the second baffle 6 to install a plurality of corresponding water spraying pipes 11 transversely arranged above the screen body. A turnover plate is arranged between every two water spray pipes 11, a plurality of turnover plates are combined to form a second baffle 6, one side of each turnover plate is hinged with the sand-stone separator 1, and the other side of each turnover plate is a movable side. In order to facilitate the operation and maintenance of the transmission crankshaft bearing below the second baffle 6 after installation, the second baffle 6 is formed by combining a plurality of turnover plates, one side of each turnover plate is hinged, and the other side of each turnover plate is movable and can be opened and closed, so that the transmission crankshaft bearing is convenient to inspect and maintain by maintainers.
In one embodiment, the outer side of the second baffle 6 is printed with an anti-collision mark, so that the defense awareness of a mixer truck driver or a field operator is increased, and the mixer truck is prevented from directly impacting the sand separator 1 or the second baffle 6. And a retaining wall 7 is further arranged on the outer side of the lower end of the second retaining plate 6, and the retaining wall 7 is used for limiting the parking position of the mixer truck. And further prevent that second baffle 6 from receiving the striking and destroying to avoid sand and stone separator 1 and transmission crankshaft bearing package impaired, can add barricade 7 and directly carry on spacingly to the truckle that backs a car and get into, effectively prevent to collide.
The specific installation and use mode of the invention is as follows: the automatic adjusting first baffle 2 is added upwards on the opposite side of the parked stirring truck, the lowest height of the upper side of the first baffle 2 from the ground is 1050mm, the lowest height is 65-90 degrees with the sand-stone separator, the height of the discharge notch of the stirring truck is 900mm, the baffle with the height of 1050mm is easy to block water and sand-stone discharge, and when the sieve body of the sand-stone separator is overhauled or stopped, the first baffle 2 is automatically adjusted to 90 degrees, the edge safety protection effect is achieved, and the maintenance of the sieve body of the sand-stone separator and the maintenance of a transmission system are facilitated; because of different sizes and lengths of the mixer trucks, when the mixer trucks fall into the mixer trucks and touch the automatic watering device, the first baffle 2 is automatically adjusted to be 65 degrees, so that the unloading range is enlarged, water and sand are not easy to flush out of the sand-stone separator, the first baffle 2 is taken and adjusted to be 65 degrees, and the baffle cannot exceed the fixed frame of the sand-stone separator 1 and can influence the maintenance of the transmission system of the equipment when exceeding the fixed frame of the sand-stone separator 1. The adjusting mechanism of the first baffle 2 consists of two rotary cylinders 4 and an electromagnetic valve 5, and when the automatic watering device is opened or closed, the limit switch 3 transmits a signal to the electromagnetic valve 5 to open or close the rotary cylinders 4 to realize the adjustment of the automatic adjusting baffle at 65-90 degrees. The first baffle 2 is hinged with the sand-stone separator 1 when being installed, and the amplitude is within the range of 15mm when the screen body is screened, and the first baffle is separated from the bottom of the screen body of the sand-stone separator 1 and the original baffle by about 100 mm.
Down add second baffle 6 in the trucd mixer side of parking of sand and stone separator 1, the height of getting second baffle 6 is 850mm, become 45 with the sand and stone separator, because of the trucd mixer discharge opening height is 900mm, get the high 850mm of second baffle easily the trucd mixer blowpit pass through, the baffle is got 45 because of sand and stone separator transmission crankshaft bearing package height, length position can't change and decide, this second baffle 6 also plays sand and stone separator 1 and road surface production gap apron guard action. When the second baffle 6 is installed, the second baffle is welded with a fixing frame of the sand-stone separator 1, and is separated from the bottom of a screen body of the sand-stone separator 1 and the original baffle by about 100 mm.
A concrete mixer wheel retaining wall 7 is added at the position of a mixer truck on the side of the sand-stone separator 1 for limiting, the retaining wall 7 is 400mm high and 300mm thick, and 600mm away from the side of the sand-stone separator 1, and the retaining wall limiting can prevent the hidden trouble that the concrete mixer truck backs a car and is over-position to hit the sand-stone separator 1 to cause equipment damage accidents.
Because the driving crankshaft bearing of the sand-stone separator is contracted at the middle section of the sand-stone separator, the second baffle 6 is added to cover the driving crankshaft bearing, so that the driving crankshaft bearing is difficult to overhaul, and the second baffle 6 is formed by a plurality of turnover plates and is convenient to overhaul; the side surface of the turnover plate is welded with loose leaves to implement turnover, and the size of the movable turnover plate can be determined according to the size of the bearing of the sand-stone separator.
And brushing an anti-collision mark at the position of a second baffle 6 of the mixer truck, which is measured by the sand-stone separator 1.
In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse explanation, these directional terms do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present application.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures, and it is to be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both orientations of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims (10)

1. A sand-stone separator safety device of a mixing station is characterized by comprising a limit switch (3), a first baffle (2) and an adjusting mechanism connected with the first baffle (2);
the first baffle (2) is arranged above the opposite side of the sand-stone separator (1) for placing the mixer truck, the lower side of the first baffle (2) is hinged with the sand-stone separator (1), and the adjusting mechanism is used for adjusting the rotating angle of the first baffle (2);
the limit switch (3) is arranged on the sand-stone separator (1) and corresponds to the mixer truck, and the limit switch (3) is in signal connection with the adjusting mechanism;
when the mixer truck is close to or far away from the sand-stone separator (1), the limit switch (3) transmits a signal to the adjusting mechanism, so that the adjusting mechanism adjusts the first baffle (2) to be in an inclined or vertical state to increase or decrease the discharging range.
2. A mixing station sand separator safety device according to claim 1, characterised in that the adjustment range of the angle of rotation of the first flap (2) is: the angle formed by the first baffle (2) and the horizontal plane is 65-90 degrees.
3. A safety device for a sand-stone separator of a mixing station according to claim 2, characterized in that the adjusting mechanism comprises a rotary cylinder (4) arranged at the hinged position of the first baffle (2) and the sand-stone separator (1), the rotary cylinder (4) is linked with an electromagnetic valve (5), and the electromagnetic valve (5) is in signal connection with the limit switch (3).
4. A safety device for a sand and stone separator of a mixing plant according to claim 3, characterized in that the height of the upper side of the first baffle (2) is greater than the height of the discharge opening of the mixer truck, and the distance between the lower side of the first baffle (2) and the screen of the sand and stone separator (1) is 50-100 mm.
5. A mixing station sand and stone separator safety device according to any one of claims 1 to 4, characterized in that the device further comprises a second baffle (6) for shielding a transmission crankshaft bearing of the sand and stone separator (1), the second baffle (6) is arranged at the side of the sand and stone separator (1) where the mixer truck is parked, and the second baffle (6) is arranged from high to low in a manner of inclining from the sand and stone separator (1) to the mixer truck.
6. A mixing station sand separator safety device according to claim 5, characterised in that the second apron (6) has an upper height which is greater than the side wall of the sand separator (1) and that the second apron (6) has an upper height which is less than the height of the discharge chute of the mixer truck.
7. A safety device for a sand separator in a mixing plant according to claim 6, characterized in that a plurality of water spray pipes (11) are erected above the screen body of the sand separator (1), and a plurality of through holes matched with the water spray pipes (11) are arranged on the first baffle plate (2) and the second baffle plate (6).
8. A safety device for a sand separator in a mixing plant according to claim 7, characterised in that a flap is arranged between every two water injection pipes (11), a plurality of said flaps are combined to form said second baffle (6), and one side of said flap is hinged to the sand separator (1), and the other side of said flap is a movable side.
9. A mixing station sand separator safety device according to any one of claims 6 to 8, characterised in that the outside of the second apron (6) is printed with a crash-proof identification.
10. A safety device for a sand separator in a mixing plant as claimed in claim 9, characterized in that a retaining wall (7) is provided on the outer side of the lower end of the second baffle (6), said retaining wall (7) being used to limit the parking position of the mixer truck.
CN202011323024.2A 2020-11-23 2020-11-23 Sand and stone separator safety device of mixing station Pending CN112317315A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011323024.2A CN112317315A (en) 2020-11-23 2020-11-23 Sand and stone separator safety device of mixing station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011323024.2A CN112317315A (en) 2020-11-23 2020-11-23 Sand and stone separator safety device of mixing station

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CN112317315A true CN112317315A (en) 2021-02-05

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