CN116900019B - A kind of harmless treatment equipment for solid waste - Google Patents

Abstract

The invention relates to the technical field of waste treatment devices, in particular to solid waste harmless treatment equipment which comprises a crushing box, a driving shaft, a screen plate and a packaging component, wherein materials to be crushed are put into a crushing cavity through a feeding hole of the crushing box, the outer diameter of a crushing cylinder arranged on the driving shaft is increased and reduced along the axial direction of the driving shaft, the driving shaft rotates to drive the crushing cylinder to rotate, a crushing knife is arranged on the outer side wall of the crushing cylinder, according to the outer diameter of the crushing cylinder, the linear speed of the crushing cylinder is high at the position with the large outer diameter of the crushing cylinder, the crushing efficiency is high, the linear speed of the crushing knife is high at the position with the large outer diameter of the crushing cylinder, and conversely, the linear speed of the crushing knife is low at the position with the small outer diameter of the crushing cylinder, so that the crushing knife is more suitable for crushing materials with high hardness, the crushing efficiency of the materials with different hardness is ensured, and the crushing efficiency of the materials is further improved.

Description

A kind of harmless treatment equipment for solid waste

Technical field

The invention relates to the technical field of waste treatment devices, and in particular to a harmless treatment equipment for solid waste.

Background technique

Solid waste refers to solids and semi-solids generated in the process of production, life and other activities that have lost their original use value or that have not lost their use value but are discarded or abandoned. In densely populated big cities, solid waste disposal is a headache. A common practice is to crush after collection, followed by drying and compression. However, the crushing efficiency needs to be considered in the process of crushing solid waste. Problem, a crusher is conventionally used to crush solid waste. The commonly used crusher is a single-shaft shredder, which can crush solid waste. The single-shaft shredder uses a rotating shredding roller and a fixed pair of shredding teeth. When crushing solid waste and using a single-shaft shredder to crush different types of solid waste, hard solid waste can easily cause the single-shaft shredder to get stuck, which will affect the crushing efficiency of the solid waste. Influence.

Contents of the invention

The invention provides equipment for the harmless treatment of solid waste to solve the problem of low pulverizing efficiency of existing pulverizers for solid waste.

A kind of solid waste harmless treatment equipment of the present invention adopts the following technical solution:

A harmless treatment equipment for solid waste, including a crushing box, a drive shaft, a screen plate and a packaging assembly;

The crushing box has a crushing cavity, and the crushing box has an inlet and a discharge port connected to the crushing cavity; the driving shaft is rotated and installed in the crushing cavity, and a shredding tube is coaxially arranged on the driving shaft, and the outer diameter of the shredding tube is along the drive shaft. The axis direction first increases and then decreases; there are multiple shredding knives on the outer peripheral wall of the shredding cylinder, and a fixed tooth plate is fixed in the crushing chamber. The relative movement of the shredding knife and the fixed tooth plate can shred the material; The sieve plate has multiple sieve holes. The sieve plate is fixedly installed in the crushing chamber. The sieve plate is located below the shredding cylinder. The materials passing through the sieve holes can be discharged from the crushing chamber through the discharge port; the packaging assembly is used to ensure the qualification of the discharge crushing chamber. Materials are packaged.

Further, the shredding cylinder is composed of multiple shredding disc groups. Each shredding disc group includes a fixed disc and an installation disc. The fixed disc is coaxially fixedly connected to the drive shaft. There are always two shredding disc groups in the multiple shredding disc groups. The diameters of the two fixed disks are the same; the installation disk and the fixed disk are rotationally connected. There are always two installation disks with the same diameter in multiple shredding disk groups. In the same shredding disk group, the diameters of the installation disk and the fixed disk are different; A limiting component is provided between the mounting plate and the fixed plate. The limiting component allows the mounting plate and the fixed plate to have a rotation limit when they rotate.

Further, the limiting assembly includes a plurality of first limiting blocks, the plurality of first limiting blocks are evenly distributed along the peripheral wall of the fixed plate; a plurality of first arc grooves are provided on the mounting plate, and each first limiting block is slidably provided In a first arc groove, a first elastic member is disposed between each first limiting block and a first arc groove.

Further, the limiting assembly further includes a plurality of second limiting blocks, the plurality of second limiting blocks are evenly distributed along the side wall of the fixed plate, and the plurality of second limiting blocks are spaced apart from the plurality of first limiting blocks; The mounting plate is provided with a plurality of second arc grooves. Each second arc groove is spaced apart from a first arc groove. Each second limiting block is slidably disposed in a second arc groove. Each second arc groove is There is a telescopic rod inside, which has resistance when shortened, and the end of the telescopic rod always abuts the second limiting block.

Further, a plurality of installation slots are fixedly provided on the peripheral side wall of the installation plate, and a shredding knife is fixedly installed in each installation slot, and the shredding knife is arranged at an angle; the outer peripheral wall of the fixed disk is provided with a plurality of discharge slots, each of which is provided with a shredding knife. Each feeding chute corresponds to a shredding knife. In the initial state, the shredding knife is at the edge of the feeding chute. When the installation plate and the fixed plate rotate relative to each other, the shredding knife and the feeding chute are in the same straight line.

Further, a push plate is provided at the feed inlet of the crushing box. The push plate can slide along the feed inlet of the crushing box. When the push plate slides along the feed inlet of the crushing box, the push plate can push the materials to fall into the shredding cylinder. superior.

Further, the packing assembly includes a packing box and a packing hammer. The packing box is fixedly connected to the crushing box. The packing box has a packing cavity. The packing box has a first opening connected to the packing cavity. The packing hammer is slidably arranged in the packing cavity, and is provided on the packing box. There is a first driving source, and the first driving source is used to drive the packing hammer to reciprocate in the packing box.

Further, a conveyor belt is provided between the discharge port of the crushing chamber and the first opening of the packaging chamber.

Further, the packaging assembly also includes a water control box. The water control box has a water storage cavity. The water control tank is fixedly connected to the packing box. A partition is fixed between the water storage cavity and the packing cavity. A plurality of one-way valves are provided on the partition. The directional valve can control the flow of water from the packing chamber to the water storage chamber.

Further, the first driving source includes a first motor and a reciprocating screw. The first motor is fixedly connected to the packing box. The reciprocating screw is fixedly connected to the power output shaft of the first motor. The side wall of the reciprocating screw is provided with a screw with opposite spiral direction. The first spiral groove and the second spiral groove; the packing hammer is provided with a fixed sleeve, the fixed sleeve is coaxially set on the outside of the reciprocating screw, the fixed sleeve is fixedly provided with a guide block, and the guide block can move along the first spiral groove Or the second spiral groove slides.

The beneficial effects of the present invention are: the solid waste harmless treatment equipment of the present invention includes a crushing box, a driving shaft, a screen plate and a packing assembly. The materials to be crushed are put into the crushing cavity through the feed port of the crushing box. The outer diameter of the shredding drum set on the drive shaft first increases and then decreases along the axis of the drive shaft. The rotation of the drive shaft drives the shredding drum to rotate, and the shredding knife is set on the outer wall of the shredding drum. According to the shredding The outer diameter of the shredding cylinder is set. When the outer diameter of the shredding cylinder is large, the linear speed of the shredding cylinder is high, and the material shredding efficiency is high. However, when the outer diameter of the shredding cylinder is large, the shredding knife on the shredding cylinder is The resistance arm is long. On the contrary, when the outer diameter of the shredding barrel is small, the linear speed of the shredding barrel is small, but when the outer diameter of the shredding barrel is large, the resistance arm of the shredding knife on the shredding barrel is small, so here it is more It is suitable for crushing materials with high hardness, ensuring that materials with different hardness can be crushed, further improving the efficiency of crushing materials.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting any creative effort.

Figure 1 is a schematic structural diagram of a solid waste harmless treatment equipment provided by an embodiment of the present invention;

Figure 2 is a top view of a solid waste harmless treatment equipment provided by an embodiment of the present invention;

Figure 3 is a cross-sectional view along the A-A direction in Figure 2;

Figure 4 is a schematic structural diagram of the drive shaft, shredding barrel and other structures in a solid waste harmless treatment equipment provided by an embodiment of the present invention;

Figure 5 is a partial enlarged view of B in Figure 4;

Figure 6 is a schematic structural diagram of a fixed plate, an installation plate and other structures in a solid waste harmless treatment equipment provided by an embodiment of the present invention.

Figure 7 is an exploded view of the fixed plate, installation plate and other structures of a solid waste harmless treatment equipment provided by an embodiment of the present invention.

In the picture: 110. Crushing box; 120. Drive shaft; 130. Third motor; 140. Reducer; 210. Shredding cylinder; 220. Fixed plate; 221. Discharge chute; 230. Installation plate; 231. Installation slot ; 232. Installation block; 233. Shredding knife; 240. Fixed tooth plate; 310. Screen plate; 311. Screen hole; 410. Packing box; 411. Packing chamber; 420. Packing hammer; 421. Fixed sleeve; 430. Support plate; 440, first motor; 450, reciprocating screw; 510, water control tank; 520, partition plate; 610, first limit block; 620, first spring; 630, first arc groove; 640, second Limit block; 650, telescopic rod; 670, second arc groove; 710, push plate; 711, auxiliary rod; 720, second spring; 730, toggle plate; 810, conveyor belt; 820, second motor.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

The serial numbers assigned to components in this article, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meaning. The terms "connection" and "connection" mentioned in this application include direct and indirect connections (connections) unless otherwise specified. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientations or positional relationships indicated by "bottom", "inner", "outside", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. , rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

In the present invention, unless otherwise expressly stated and limited, a first feature being "on" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. touch. Furthermore, the terms “above”, “above” and “above” a first feature on a second feature can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. "Below", "below" and "beneath" the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.

As shown in Figures 1 to 7, an embodiment of the present invention provides a solid waste harmless treatment equipment, including a crushing box 110, a drive shaft 120, a screen plate 310 and a packaging assembly.

The crushing box 110 is hollow inside, and the hollow chamber inside the crushing box 110 is the crushing chamber. The side wall of the crushing box 110 is provided with an inlet and an outlet that communicate with the crushing chamber. The inlet is at the upper end of the crushing box 110, and the discharge port is The opening is at the lower end of the crushing box 110. Materials enter the crushing chamber through the feed port, and the materials are discharged from the crushing chamber through the discharge port.

The drive shaft 120 extends in the front and rear direction. The rear end of the drive shaft 120 penetrates the rear side wall of the crushing box 110. The drive shaft 120 can rotate in the crushing chamber. A third motor 130 is fixedly mounted on the rear side wall of the crushing box 110. A reducer 140 is provided on the power output shaft of the third motor 130. The output end of the reducer 140 is fixedly connected to the rear end of the drive shaft 120. When the third motor 130 is started, the drive shaft 120 is rotated under the action of the reducer 140. has greater torque. A shredding cylinder 210 is coaxially disposed on the driving shaft 120. The outer diameter of the shredding cylinder 210 first increases and then decreases along the axial direction of the driving shaft 120. Specifically, the outer diameter of the shredding cylinder 210 first increases and then decreases along the front-to-back direction, so the middle part of the shredding cylinder 210 has the largest diameter in the front-to-back direction. Further, the shredding cylinder 210 is a structure composed of multiple shredding disk groups. Each shredding disk group includes a fixed disk 220 and an installation disk 230. The fixed disk 220 and the installation disk 230 are coaxially arranged on the drive. Outside the shaft 120, the fixed disk 220 and the installation disk 230 in the same shredding disk group are different in size. Specifically, the diameter of the fixed disk 220 in the same shredding disk group is larger than the diameter of the installation disk 230. In multiple shredding disk groups, there are always two fixed disks 220 with the same diameter, and the two fixed disks 220 with the same diameter are symmetrical about the middle of the shredding cylinder 210 in the front and rear direction. Similarly, in multiple shredding disk groups, there are always two installation disks 230 with the same diameter, and the two installation disks 230 with the same diameter are symmetrical about the middle of the shredding cylinder 210 in the front and rear direction. In the same shredding disk group, the fixed disk 220 is fixedly connected to the drive shaft 120, the installation disk 230 is rotationally connected to the fixed disk 220, and a limiting component is provided between the installation disk 230 and the fixed disk 220. The limiting component is used to limit the installation. The rotation limit between the disk 230 and the fixed disk 220 is that when the drive shaft 120 rotates, the smaller the resistance the installation disk 230 receives during being driven, the smaller the relative rotation angle between the installation disk 230 and the fixed disk 220 will be.

A plurality of installation grooves 231 are evenly provided on the outer peripheral wall of the installation disk 230 of each shredding disk group. The installation grooves 231 have a certain length. A installation block 232 is fixedly provided in each installation groove 231. The installation block 232 is located in the installation groove. 231, and the outer end of the installation block 232 has an arc edge. The radius corresponding to the arc edge of the installation block 232 is equal to the radius of the installation plate 230. Each installation block 232 is equipped with a shredding knife 233. The shredding knife 233 has inclined side walls, and the inclined side walls of the shredding knives 233 on the two symmetrical mounting plates 230 are also symmetrical. When the drive shaft 120 rotates in a fixed direction, the shredding knives 233 on multiple mounting plates 230 can align The material moves forward and backward.

In this embodiment, in any shredding disk group, the diameter of the fixed disk 220 is slightly smaller than the diameter of the installation disk 230, and the edge of the fixed disk 220 can hinder the material moved by the shredding knife 233. A plurality of discharge slots 221 are provided on the outer peripheral wall of the fixed plate 220, and each discharge slot 221 corresponds to a shredding knife 233. In the initial state, the shredding knife 233 is at the edge of the discharge slot 221, between the installation plate 230 and the fixed When the disk 220 rotates relatively, the shredding knife 233 and the discharge chute 221 are in the same straight line, which reduces the obstruction of the fixed disk 220 to the shredding knife 233 moving the material.

The inner wall of the crushing box 110 is fixed with fixed tooth plates 240. There are two fixed tooth plates 240. The two fixed tooth plates 240 are distributed on the left and right inner walls of the crushing box 110. Each fixed tooth plate 240 has a first section and a second section. There is a fixed included angle between the first section and the second section. Both the first section and the second section have serrated teeth, wherein the first section has a fixed angle. The number of teeth on the first segment and the teeth on the second segment are the same, and the sum of the teeth on the first segment plus the teeth on the second segment is equal to the number of shredding discs. Furthermore, the number of teeth on the first segment or the second segment The side walls of the teeth can all contact the side walls of the shredding knife 233. When the shredding knife 233 and the fixed tooth plate 240 move relative to each other, the cooperation between the shredding knife 233 and the fixed pressing plate can shred the material, reducing the amount of material that will be installed. The probability of disk 230 getting stuck.

The sieve plate 310 has a plurality of sieve holes 311. The sieve plate 310 is fixedly installed in the crushing chamber. The sieve plate 310 is located below the shredding cylinder 210. The materials passing through the sieve holes 311 can be discharged from the crushing chamber through the discharge port. The material discharged from the crushing cavity through the mouth is qualified material.

The packaging component is used to package qualified materials discharged from the crushing chamber. The packing assembly includes a packing box 410 and a packing hammer 420. The packing box 410 is fixedly installed on the left side of the crushing box 110. The inside of the packing box 410 is hollow. The hollow chamber of the packing box 410 is the packing cavity 411. The upper end of the packing box 410 has a connected packing cavity. The qualified materials discharged from the crushing chamber through the discharge port can enter the packaging chamber 411 through the first opening of 411. The packing hammer 420 can enter the packing cavity 411 through the first opening, and the packing hammer 420 can be slidably arranged along the packing cavity 411. The side wall of the packing hammer 420 is in sliding and sealing connection with the inner wall of the packing box 410. The packing box 410 is provided with a first drive The first driving source is used to drive the packing hammer 420 to reciprocate up and down in the packing cavity 411. When qualified materials enter the packing cavity 411 through the first opening, the packing hammer 420 leaves the packing cavity 411 through the first opening. Specifically, the first driving source includes a first motor 440 and a reciprocating screw 450 . A support plate 430 is fixedly provided on the packing box 410. The first motor 440 is fixedly connected to the support plate 430. The power output shaft of the first motor 440 extends downward. The reciprocating screw 450 is arranged vertically. The upper end of the reciprocating screw 450 is connected to the first support plate 430. The power output shaft of a motor 440 is fixedly connected, and the outer wall of the reciprocating screw 450 is provided with a first spiral groove and a second spiral groove with opposite spiral directions. The packing hammer 420 is provided with a fixed sleeve 421. The fixed sleeve 421 is coaxially sleeved on the outside of the reciprocating screw 450. The fixed sleeve 421 is fixedly provided with a guide block, and the guide block can slide along the first spiral groove or the second spiral groove. When the first motor 440 continues to rotate, the fixed sleeve 421 slides up and down in the vertical direction, and the packing hammer 420 slides up and down in the packing cavity 411 .

Furthermore, the packing assembly also includes a water control box 510, which is fixedly arranged on the left side of the packing box 410. The water control box 510 is hollow inside, and the hollow chamber of the water control box 510 is a water control chamber. A partition 520 is provided between the packing chamber 411 and the water control chamber. The partition 520 is provided with a plurality of mounting holes. The mounting holes can connect the packing chamber 411 and the water control chamber. A one-way valve is installed in each installation hole. , the one-way valve can prevent the liquid from entering the packing chamber 411 from the water control chamber, and the one-way valve can control the flow of water from the packing chamber 411 to the water storage chamber, then when the packing hammer 420 squeezes the crushed material, the material The moisture in the tank flows through the one-way valve to the water control chamber.

In this embodiment, the limiting assembly includes a plurality of first limiting blocks 610. The plurality of first limiting blocks 610 are fixedly arranged on the fixed plate 220. The plurality of first limiting blocks 610 are along the peripheral wall of the fixed plate 220. Evenly distributed, with a gap between two adjacent first limiting blocks 610 . A plurality of first arc grooves 630 are provided on the installation plate 230. Each first limiting block 610 is slidably disposed in a first arc groove 630. There is a gap between each first limiting block 610 and a first arc groove 630. A first elastic member is provided. Specifically, the first elastic member is a first spring 620. In the initial state, the first limiting block 610 is at one end of the first arc groove 630, and the first spring 620 is in its original length state. When the installation plate 230 rotates, the first spring 620 is gradually squeezed. When the installation plate 230 rotates at a certain angle, the end of the first arc groove 630 contacts the first limiting block 610, so that the first limiting block 610 blocks Rotation of mounting plate 230.

Further, the limiting assembly also includes a plurality of second limiting blocks 640. The plurality of second limiting blocks 640 are fixedly arranged on the fixed plate 220. The plurality of second limiting blocks 640 are evenly distributed along the peripheral wall of the fixed plate 220. , there is a gap between two adjacent second limiting blocks 640, and the ring size of the plurality of second limiting blocks 640 and the plurality of first limiting blocks 610 distributed on the fixed plate 220 is the same. The block 640 is spaced apart from the first limiting block 610 . A plurality of second arc grooves 670 are provided on the mounting plate 230. Each second arc groove 670 is the same size as any one of the first arc grooves 630, and the second arc grooves 670 are spaced apart from the first arc grooves 630. The second limiting block 640 is slidably disposed in a second arc groove 670. Each second arc groove 670 is provided with a telescopic rod 650. The telescopic rod 650 has a fixed part and a sliding part, and the fixed part is fixedly connected to the second arc groove 670. Arc groove 670, the sliding part is always in contact with the second limiting block 640, the fixed part is hollow inside, the sliding part is inserted into the fixed part, a damping cylinder and a return spring are provided inside the fixed part, and the damping cylinder only has resistance when shortening , when the telescopic rod 650 is extended, the elastic force of the return spring drives the installation plate 230 to quickly return to the initial position.

In this embodiment, a pushing plate 710 is provided at the feed inlet of the crushing box 110. The pushing plate 710 extends left and right. The right end of the pushing plate 710 penetrates the side wall of the crushing box 110. When the pushing plate 710 slides to the right, the pushing plate 710 The material can be pushed down to the shredding drum 210. The left end of the push plate 710 is fixedly provided with an auxiliary rod 711, and a second elastic member is provided between the auxiliary rod 711 and the outer peripheral wall of the crushing box 110. The second elastic member is a second spring 720, and the second spring 720 is always in a compressed state, then The second spring 720 always drives the auxiliary rod 711 away from the crushing box 110 . Further, the reciprocating screw 450 is fixed with a toggle plate 730. The toggle plate 730 and the reciprocating screw 450 are arranged non-coaxially. The toggle plate 730 is always in contact with the auxiliary rod 711. When the reciprocating screw 450 rotates, the toggle plate 730 is pushed. The plate 710 pushes the materials at the feed opening of the crushing box 110 .

In this embodiment, a conveyor belt 810 is provided between the discharge port of the crushing chamber and the first opening of the packaging chamber 411 . A second motor 820 is fixedly installed on the crushing box 110 . The second motor 820 is used to drive the conveyor belt 810 to operate, so as to transport the crushed materials to the packaging cavity 411 .

Combined with the above embodiments, the embodiments of the present invention provide a kind of solid waste harmless treatment equipment whose usage principle and working process are as follows:

During operation, the third motor 130 is started, and the power of the third motor 130 drives the drive shaft 120 to rotate after passing through the reducer 140. Multiple fixed plates 220 fixedly arranged on the drive shaft 120 rotate synchronously. Since the fixed plates 220 and the installation plate 230 There is a telescopic rod 650 between them, and the telescopic rod 650 has a certain resistance when shortened. Since no material is put into the crushing chamber at this time, when the installation disk 230 is driven by the fixed disk 220, the rotation resistance of the installation disk 230 is small. , at this time, the mounting plate 230 and the fixed plate 220 rotate at the same time. As the material is put into the crushing cavity through the feed port of the crushing box 110, the first motor 440 is started, and the first motor 440 drives the reciprocating screw 450 to rotate. When the push plate 710 is moved, the auxiliary rod 711 moves in the left and right direction, and the auxiliary rod 711 drives the push plate 710 to move left and right synchronously. During the left and right movement of the push plate 710, the push plate 710 pushes the material at the feed port of the crushing box 110, reducing the Materials accumulate on one side of the shredding drum 210.

As the material falls on the shredding cylinder 210, a shredding knife 233 is installed on the installation plate 230. When the installation plate 230 rotates, the shredding knife 233 impacts the material, and the material can affect the rotation of the installation plate 230. Obstruction occurs because the telescopic rod 650 is provided between the installation plate 230 and the fixed plate 220. The telescopic rod 650 has a certain resistance during the shortening process. If the telescopic rod 650 does not shorten, the collision of the shredding knife 233 on the material can directly cause The crushing of the material proves that the hardness of the material is low. If the material restricts the rotation of the rotating plate during the impact of the shredding knife 233 on the material, as the fixed plate 220 continues to rotate, the mounting plate 230 and the fixed plate 220 will rotate relative to each other, and the telescopic rod 650 will gradually shorten, Due to the inclined setting of the shredding knife 233, the shredding knife 233 always has the force to guide the material to move forward and backward. After the telescopic rod 650 is shortened, the shredding knife 233 is in a position with the discharge chute 221 on the adjacent fixed plate 220. On the same straight line, the obstruction of the fixed plate 220 to the movement of the material to the front and rear sides is reduced, and the material is easier to move to the front and rear sides. After the material breaks away from the shredding knife 233, the compressed telescopic rod 650 quickly extends under the action of the return spring. long, the installation disk 230 is quickly restored to its original position.

Since the diameters of the front and rear sides of the shredding cylinder 210 composed of multiple shredding disk groups are smaller than the diameter of the middle part, the linear speed of the outer edge of the fixed disk 220 in the shredding disk group located in the middle of the shredding cylinder 210 is high, but the installation disk 230 The shredding knife 233 installed on the upper part of the shredding plate has a long resistance arm when it impacts the material, so the shredding disk group in the middle can quickly process materials with low hardness. According to the setting of the shredding knife 233, in the same shredding disk group, after the fixed disk 220 and the installation disk 230 rotate relative to each other, the resistance of the inclined shredding knife 233 to the side away from the middle of the shredding cylinder 210 is reduced. If it is small, the material with high hardness will move to the side away from the middle part of the shredding tube 210. The linear speed of the outer edge of the fixed plate 220 in the shredding disk group far away from the middle of the shredding drum 210 is low, but the resistance arm of the shredding knife 233 installed on the installation plate 230 when impacting the material is short, so it is far away from the middle. The shredding disc group can handle materials with high hardness, thereby achieving classified crushing of materials and improving the crushing efficiency of materials.

After the materials are crushed, they fall on the sieve plate 310. Qualified materials can pass through the sieve holes 311. The materials passing through the sieve holes 311 leave the crushing chamber through the discharge port. There is a conveyor belt 810 between the openings. When the material falls on the conveyor belt 810, the second motor 820 is started. The second motor 820 drives the conveyor belt 810 to run. At this time, the first motor 440 is started to drive the packing hammer 420 through the first opening. After leaving the packaging cavity 411, the materials are conveyed by the conveyor belt 810 and enter the packaging cavity 411 through the first opening. With the operation of the first motor 440, the first motor 440 drives the packaging hammer 420 to reciprocate up and down in the packaging cavity 411, and the packaging is completed. After the hammer 420 squeezes the material, the moisture carried in the material can enter the water storage chamber through the one-way valve on the partition 520. The packing hammer 420 moves to the extreme position every time in the packing chamber 411 to ensure that the packed materials are packed. The moisture content in the block remains consistent.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection.

Claims (7)

1. A kind of harmless treatment equipment for solid waste, characterized by: including: The crushing box has a crushing chamber, and the crushing box has an inlet and an outlet connected to the crushing chamber; The drive shaft is rotated and installed in the crushing chamber. A shredding tube is coaxially arranged on the driving shaft. The outer diameter of the shredding tube first increases and then decreases along the axis of the driving shaft; the outer peripheral wall of the shredding tube is provided with a There are multiple shredding knives, and a fixed tooth plate is fixed in the crushing cavity. The relative movement of the shredding knife and the fixed tooth plate can shred the material; The sieve plate has multiple sieve holes. The sieve plate is fixedly installed in the crushing chamber. The sieve plate is located below the shredding cylinder. The materials passing through the sieve holes can be discharged from the crushing chamber through the discharge port; The packaging component is used to package the qualified materials discharged from the crushing cavity; The shredding drum is composed of multiple shredding disc groups. Each shredding disc group includes a fixed disc and an installation disc. The fixed disc is coaxially fixedly connected to the drive shaft. There are always two fixed discs in multiple shredding disc groups. have the same diameter; the installation disk and the fixed disk are rotationally connected. There are always two installation disks with the same diameter in multiple shredding disk groups. In the same shredding disk group, the diameters of the installation disk and the fixed disk are different; the installation disk and A limiting component is provided between the fixed disks, and the limiting component allows the installation disk and the fixed disk to have a rotation limit when they rotate; The limiting assembly includes a plurality of first limiting blocks, the plurality of first limiting blocks are evenly distributed along the peripheral wall of the fixed plate; a plurality of first arc grooves are provided on the mounting plate, and each first limiting block is slidably arranged on a first In an arc groove, a first elastic member is provided between each first limiting block and a first arc groove; The limiting assembly also includes a plurality of second limiting blocks, the plurality of second limiting blocks are evenly distributed along the side wall of the fixed plate, and the plurality of second limiting blocks are spaced apart from the plurality of first limiting blocks; on the mounting plate A plurality of second arc grooves are provided, each second arc groove is spaced apart from a first arc groove, each second limiting block is slidably disposed in a second arc groove, and each second arc groove has a The telescopic rod has resistance when it is shortened, and the end of the telescopic rod always abuts the second limiting block. 2. A kind of solid waste harmless treatment equipment according to claim 1, characterized in that: a plurality of installation grooves are fixedly provided on the peripheral side wall of the installation plate, and a shredding knife is fixedly provided in each installation groove, The shredding knife is set at an angle; the outer peripheral wall of the fixed plate is provided with multiple feeding troughs, each feeding trough corresponds to a shredding knife. In the initial state, the shredding knife is at the edge of the feeding trough, between the installation plate and the fixed plate. When rotating relative to each other, the shredding knife and the discharge chute are in the same straight line. 3. A kind of solid waste harmless treatment equipment according to claim 1, characterized in that: a push plate is provided at the feed opening of the crushing box, and the pushing plate can slide along the feed opening of the crushing box. When the feed port of the crushing box slides, the push plate can push the materials to fall on the shredding tube. 4. A solid waste harmless treatment equipment according to claim 1, characterized in that: the packing assembly includes a packing box and a packing hammer, the packing box is fixedly connected to the crushing box, the packing box has a packing cavity, and the packing box has a connected packing box. The first opening of the cavity; the packing hammer can enter the packing cavity through the first opening, and the packing hammer can be slid along the packing cavity. A first driving source is provided on the packing box, and the first driving source is used to drive the packing hammer in the packing box. Reciprocating motion. 5. A solid waste harmless treatment equipment according to claim 4, characterized in that a conveyor belt is provided between the discharge port of the crushing chamber and the first opening of the packaging chamber. 6. A solid waste harmless treatment equipment according to claim 4, characterized in that: the packaging assembly further includes a water control box, the water control box has a water storage chamber, the water control box is fixedly connected to the packing box, and the water storage chamber and the packing chamber are fixedly connected. A partition is fixed between them, and a plurality of one-way valves are arranged on the partition. The one-way valves can control the flow of water from the packing chamber to the water storage chamber. 7. A solid waste harmless treatment equipment according to claim 4, characterized in that: the first driving source includes a first motor and a reciprocating screw, the first motor is fixedly connected to the packing box, and the reciprocating screw is fixedly connected to the packing box. On the power output shaft of the first motor, the side wall of the reciprocating screw is provided with a first spiral groove and a second spiral groove with opposite helical directions; the packing hammer is provided with a fixed sleeve, and the fixed sleeve is coaxially sleeved on the reciprocating screw. On the outside, a guide block is fixedly provided on the fixed sleeve, and the guide block can slide along the first spiral groove or the second spiral groove.