CN113751173A

CN113751173A - Solid waste crushing treatment system

Info

Publication number: CN113751173A
Application number: CN202111194405.XA
Authority: CN
Inventors: 王志明; 谢志成; 冯鸣凤
Original assignee: Tianjin Institute Of Ecological And Environmental Sciences; Tianjin Gerun Ed Environmental Protection Technology Co ltd
Current assignee: Tianjin Institute Of Ecological And Environmental Sciences; Tianjin Gerun Ed Environmental Protection Technology Co ltd
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2021-12-07
Anticipated expiration: 2041-10-13
Also published as: WO2023061041A1; CN113751173B

Abstract

The invention provides a solid waste crushing treatment system, which comprises a first crushing device, a second crushing device and a third crushing device, wherein the first crushing device is used for primary crushing of solid waste to generate first particles, and the particle size of at least 90% of the first particles is smaller than or equal to 150 mm; a second crushing device for crushing the first particles to produce second particles having a particle size of 100mm or less; and the magnetic separation device is arranged between the first crushing device and the second crushing device and is used for removing the metal impurities in the first particles. The solid waste broken particles generated by the system are stable in combustion, and the automation degree of the production process is high and environment-friendly.

Description

Solid waste crushing treatment system

Technical Field

The disclosure relates to the field of garbage treatment, in particular to a solid garbage crushing treatment system.

Background

At present, in a solid waste treatment system on the domestic market, common industrial solid waste is directly fed into an incineration plant or a landfill site without being subjected to treatment links such as crushing and the like, but when the solid waste contains incombustible substances, the incineration plant cannot directly receive and incinerate the incombustible substances, secondly, the unbroken industrial solid waste is unstable in combustion and is difficult to incinerate, and more residues are generated for the incinerated solid waste, so that the treatment difficulty is high.

The simple crusher is generally adopted for treating the large-size garbage, and a magnetic separation process is set for the crushed garbage to separate out metal impurities, so that the crushing effect is poor, the particle size cannot be effectively controlled, the discharged material is large in size, the screening rate of the metal impurities is low, and the metal impurities cannot be effectively converted into alternative fuels. The solid garbage for landscaping is also crushed by a simple crusher, and the volume of discharged particles cannot be controlled, so that the solid garbage cannot be directly used as alternative fuel.

Disclosure of Invention

To solve at least one of the above technical problems, the present disclosure provides a solid waste crushing treatment system comprising

A first crushing device for primary crushing of the solid waste to produce first particles, at least 90% of the first particles having a particle size of less than or equal to 150 mm;

a second crushing device for crushing the first particles to produce second particles having a particle size of 100mm or less;

and the magnetic separation device is arranged between the first crushing device and the second crushing device and is used for removing the metal impurities in the first particles.

According to at least one embodiment of the present disclosure, further comprising a conveyor belt comprising a first conveyor belt, a second conveyor belt, and a third conveyor belt, wherein,

the first conveying belt is arranged between the solid garbage pile and the first crushing device and is used for conveying the solid lacing wires to a storage bin of the first crushing device; and/or

The second conveying belt is arranged between the first crushing device and the magnetic separation device and is used for conveying the first particles to the lower part of the magnetic separation device for impurity removal; and/or

And the third conveying device is arranged between the magnetic separation device and the second crushing device and is used for conveying the first particles subjected to impurity removal to a storage bin of the second crushing device.

According to at least one embodiment of the present disclosure, the crusher further comprises a collecting hopper, which is arranged behind the second crushing device and is connected with the discharge port of the second crushing device through a pipeline;

the material collecting hopper is a cyclone type material collecting hopper and is connected with an air inlet of the negative pressure fan, and the second particles are collected into the cyclone type material collecting hopper.

According to at least one embodiment of this disclosure, the device further comprises a dust removal device, wherein the dust removal device

The dust removal device is communicated with at least one of the storage bin of the first crushing device, the discharge hole of the first crushing device, the magnetic separation device, the storage bin of the second crushing device and the aggregate bin through a pipeline.

According to at least one embodiment of the present disclosure, the magnetic separation device is disposed in an enclosed space, and the dust removal device is communicated with the enclosed space through a pipeline; and/or the presence of a gas in the gas,

the dust removal device is connected with an air outlet of the negative pressure fan and is used for collecting dust in the collecting hopper; and/or the presence of a gas in the gas,

the dust removal device is a pulse type cloth bag dust removal device.

According to at least one embodiment of the present disclosure, the material blockage prevention device is further included,

the anti-blocking device comprises a control box, a first electronic weighing device arranged on the first conveyer belt, a second weighing device arranged on the second conveyer belt, and a pressing device arranged above the crushing cavity of the first crushing device, wherein the pressing device is used for applying pressure on solid garbage blocked in the crushing cavity to prevent blocking,

and the control box is respectively connected with the first electronic weighing device, the second electronic weighing device and the hydraulic device of the pressing device.

The pressing device comprises a connecting rod and a pressing arm which are arranged on the outer side wall of the crushing cavity, the pressing arm comprises a straight rod, an arc-shaped arm and a pressing plate which are fixedly connected in sequence, one end of the connecting rod and one end of the hydraulic device are hinged to the outer side wall of the crushing cavity together, the other end of the connecting rod is hinged to one end of the straight rod, and the other end of the hydraulic device is hinged to the middle of the straight rod.

According to at least one embodiment of the present disclosure, the first crushing device comprises one of a shear four-axis shredder, a shear two-axis shredder; and/or the presence of a gas in the gas,

the second crushing device comprises one of a hammer crusher and a cone crusher; and/or the presence of a gas in the gas,

the magnetic separation device is a cross type magnetic separator.

According to at least one embodiment of the present disclosure, a sieve plate is arranged below the crushing cavities of the first crushing device and the second crushing device, the sieve plate is used for controlling the particle size of the particles, and the solid waste larger than the pore size of the sieve plate is crushed again by a cutter;

the sieve plate is matched with the crushing assembly and consists of at least one sector plate with meshes;

the fan-shaped plate is arranged on a supporting shell, and the supporting shell is detachably connected with the four-shaft shredder; and

and a bearing body is arranged below the supporting shell, and a plurality of rollers are further arranged at the bottom of the bearing body.

According to at least one embodiment of the present disclosure, the screen plate has an open porosity of 80-90%; and/or the presence of a gas in the gas,

the meshes on each sector plate are arranged in groups, and the distance between two adjacent groups of meshes is 150-200 mm; and/or the presence of a gas in the gas,

the shape of the meshes is hexagonal, and in each group of meshes, two adjacent rows or two adjacent columns of meshes are arranged in a staggered manner; and/or the presence of a gas in the gas,

the aperture of the mesh is 60-150 mm.

According to at least one embodiment of the disclosure, the screen plate of the four-shaft shredder is further provided with guide ribs between two adjacent groups of mesh holes, wherein the first guide rib is arranged at the first spacing part, and the first guide rib extends along the first rib to the direction of the second rib and is gradually far away from the mesh hole group at the end part; and/or the presence of a gas in the gas,

the second guide rib is arranged in the middle of the second interval part and is arranged along the circumferential direction of the sector plate; and/or the presence of a gas in the gas,

the third guide rib is arranged at the third spacing part, extends to the direction of the second rib along the third rib and is gradually far away from the mesh hole group at the end part; and/or the presence of a gas in the gas,

the fourth guide rib is arranged in the middle of the fourth interval part and arranged along the circumferential direction of the sector plate.

Compared with the prior art, the solid garbage crushing treatment system provided by the disclosure has the advantages of small discharge volume, high metal impurity selection rate, high compatibility and capability of directly serving as alternative fuel. The utility model discloses a first breaker adopts shear type four-axis shredder, make its compatibility higher, it is applicable in major possession rubbish, afforestation rubbish and general industrial waste, through setting up the sieve in broken chamber lower part, according to the volume of the mesh aperture control ejection of compact of sieve, carry one process down through conveyer to the rubbish granule that is less than the mesh aperture, and then grab the broken chamber of back of getting back by the epaxial cutter of shear type four-axis shredder to the rubbish that can not pass through the mesh, carry out the secondary crushing, until the rubbish granule can pass through the mesh on the sieve smoothly.

Adopt shear type four-axis shredder to set up the mode of screen cloth to the screening process to rubbish granule that has left out of messenger, the structure is compacter, has reduced the area of equipment, and the sieve of its granule size accessible change different apertures is controlled, has realized less particle diameter granule, and through the granule that generates less particle diameter, it is also higher to mix with metal particle screening rate in rubbish.

To the sieve owing to receive the crushing roller to rotate the extrusion that leads to rubbish, the sieve has set up a plurality of ribs, the rib has improved the holistic intensity of sieve, life improves greatly, the direction rib has still been set up simultaneously, the direction rib is in addition to the whole intensity of reinforcing sieve, still through the guide effect, the roller bearing of the rubbish granule direction both sides that will not pass through the sieve, and the rubbish granule at both ends is to the position guide in the middle of the roller bearing, two loads that are located middle roller bearing have been alleviateed, the dispersion is broken in the roller bearing that is located both sides, simultaneously to the central part of the rubbish granule direction roller bearing at both ends, make rubbish granule crushing efficiency higher.

The utility model provides a solid waste crushing processing system has still set up anti-blocking device in first breaker, sets up the electronic scale around the breaker, detects the weight difference between pan feeding and the ejection of compact and judges whether putty in the broken chamber, and when taking place the putty, the clamp plate that sets up above broken chamber presses solid waste to the crushing roller through hydraulic control device, thereby increases the packing force between solid waste and the crushing roller and makes rubbish pass through in the crushing roller broken.

The utility model provides a solid waste crushing processing system still removes dust through dust absorption pipeline entering dust collector at the position installation dust absorption mouth that produces the dust easily, thereby keep the environment clean, especially in magnetic separation device department, seal whole magnetic separation device department in sealed space, connect dust collector through dust absorption pipeline, greatly reduced the pollution of dust to the environment, and then adopt the mode of collecting hopper to collect final rubbish granule to the granule after the second is broken, adopt whirlwind formula collecting hopper, make the ejection of compact move under totally closed state, and collect the dust on collecting hopper upper portion, make dust and rubbish granule further separation, the dust is collected by dust collector, and concentrate through rubbish granule and collect, be convenient for pack or further compress into the shaping product.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

Fig. 1 is a schematic top view of a solid waste crushing treatment system according to an embodiment of the present disclosure.

Fig. 2 is a schematic view of the plane a-a of fig. 1.

Fig. 3 is a schematic view of the plane B-B of fig. 1.

Fig. 4 is a schematic view of the plane C-C of fig. 1.

Fig. 5 is a perspective schematic view of a screen panel according to an embodiment of the present disclosure.

Fig. 6 is a schematic top view of a screen panel according to an embodiment of the present disclosure.

Detailed Description

The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

According to an embodiment of the present disclosure, as shown in fig. 1-2, there is provided a solid waste crushing treatment system comprising a first crushing device 2 for primary crushing of solid waste to produce first particles, at least 90% of the first particles having a particle size of 150mm or less; a second crushing device 6 for crushing the first granules to produce second granules having a particle size of 100mm or less; and the magnetic separation device 4 is arranged between the first crushing device and the second crushing device and is used for removing the metal impurities in the first particles.

The first crushing device 2 is used as a first crushing device for solid garbage, the common solid garbage is crushed, at least 90% of the particle size of the first discharged particles is less than or equal to 150mm, only when the particle size is reached, the crushing redundancy can be provided for the next crushing process, if the particle size of the first discharged particles is too much, the particles can be blocked in the second crushing process, or the crushing efficiency of the second process is reduced due to the overlarge particle size, the accumulated materials cannot be timely treated, for some incineration plants with low combustion value requirements, the first particles with the particle size of at least 90% less than or equal to 150mm can meet the packaging requirement, subsequent second crushing is not needed, and the cost is saved. And for the particle size of the second granule after the second crushing is less than or equal to 100mm, the first granule is further crushed, the particle size of the second granule is less than or equal to 100mm, and the second granule is packed and sent to an incinerator for incineration, so that the second granule is more stable, and the second granule is more sufficient for the combustion of garbage with too large or too small particle size. The second crushing device is arranged in consideration of the requirement of particle size, and due to the fact that the strength and toughness of the garbage materials crushed in the first crushing device are different, a part of garbage particles can be extruded and bonded to cause longer length, but can leak from meshes of the sieve plate, probability control is difficult, the proportion of the first particles with particle size larger than 150mm is more than 10% for some solid garbage which is difficult to control, and the purpose of arranging the second crushing device is to ensure that the particle size of the final garbage particles meets the requirement of sufficient and stable combustion. Magnetic separation device 3 sets up between first breaker 2 and second breaker 6, first breaker 2 can adopt 4 axle shear type crushers, can be broken with metallic impurity rubbish, and owing to set up the sieve in broken chamber bottom, its ejection of compact particle diameter is little, magnetic separation device 3 can get rid of the metallic impurity in the broken ejection of compact granule through first breaker 2 through the magnetic separation, the broken first granule particle diameter through first breaker 2 is less, when the particle diameter of at least 90% first granule is less than or equal to 150mm, make magnetic separation device's metallic impurity selection rate higher, reduce to the broken cutter wearing and tearing of second breaker 6, the life-span is prolonged. The magnetic separation device separates out metal impurities, so that waste residues generated by combustion are further reduced, and the amount of the treated waste residues is reduced.

In some embodiments, as shown in fig. 2, the solid waste crushing treatment system, in which the materials in each link are conveyed by a conveyor belt, has a higher degree of automation, and comprises a first conveyor belt 1, a second conveyor belt 3 and a third conveyor belt 5, wherein the first conveyor belt 1 is arranged between the solid waste pile and the first crushing device 2, and is used for conveying the solid waste to the storage bin of the first crushing device 2; the second conveyer belt 3 is arranged between the first crushing device 2 and the magnetic separation device 4 and is used for conveying the first particles to the lower part of the magnetic separation device 4 for impurity removal; the third conveying device 5 is arranged between the magnetic separation device 4 and the second crushing device 6 and used for conveying the first particles subjected to impurity removal to a storage bin of the second crushing device 6.

In some embodiments, the conveyer belt can adopt a chain plate type conveyer belt, a rubber conveyer belt transfers the material of the previous process to the next process, the first conveyer belt 1 conveys the solid garbage to the storage bin of the first crushing device 2, the magnetic separation device 4 is arranged between two conveyer belts due to the requirement of removing the metal impurities as much as possible for the first particles, for example, one end of the second conveyer belt 3 is arranged below the discharge port of the first crushing device 2, and gradually inclines upwards to convey the material to the position below the magnetic separation device 4 and close to the magnetic separation device 4, and the third conveyer belt 5 gradually inclines upwards to the position above the storage bin of the second crushing device 6 from the bottom below the magnetic separation device 4. The magnetic separation device 4 can select a cross-type magnetic separation device, has strong magnetism, and in the process that first granule falls to the third conveyer belt 5 from the end of the second conveyer belt 3, the area that the metal particle that is mingled with in the inside of second granule scatters is great, therefore the magnetic separation device 4 has higher edulcoration effect, even bury the metal impurity of inside and also can expose at the in-process that drops to thereby be selected out by the magnetic separation device 4 and detach metallic impurity.

In some embodiments, the collecting hopper 7 is arranged after the second crushing device 6 and is connected with the discharge opening of the second crushing device 6 by a pipe; the material collecting hopper 7 is a cyclone type material collecting hopper and is connected with an air inlet of the negative pressure fan 8, and second particles are collected in the cyclone type material collecting hopper.

As shown in fig. 2-4, in the solid waste crushing treatment system, the second particles crushed by the second crushing device 6 are collected by the collecting hopper 7, since the particle size of the second particles is very small and a large amount of fine particles are mixed, if the second particles are directly collected, the fine particles of the waste can float to directly cause environmental pollution, the collecting hopper 7 is arranged and connected with the collecting hopper through the air inlet of the negative pressure fan 8, the second particles of the waste can be directly introduced into the collecting hopper 7 from the discharge port through negative pressure, while the cyclone collecting hopper not only sinks the second particles with heavier particles to the bottom of the collecting hopper 7 for collection, but also sends the dust into the external dust removing device 9 through the pipeline at the top of the collecting hopper 7 to prevent the dust from being dissipated to the external environment to the maximum extent, and the collecting hopper 7 can be prepared for the subsequent packaging process, the garbage particles can be directly sent into a packaging device, and can be continuously and automatically packaged on the basis of no environmental pollution or enter a pressurizing and packaging operation.

As shown in fig. 1-2, the dust removing device 9 is communicated with at least one of the storage bin of the first crushing device 2, the discharge port of the first crushing device 2, the magnetic separation device 4, the storage bin of the second crushing device 6 and the collecting hopper 7 through pipelines.

In some embodiments, the dust collector 9 collects dust at the suction opening of the pipeline into the dust collector 9 through the pipeline under the action of the centrifugal fan 10, the dust collector is respectively arranged at the storage bin and the discharge opening of the first crushing device 2 and communicated with the dust suction pipeline, the dust collector is also arranged at the magnetic separation device, the dust collector is arranged at the material collecting hopper 7, optionally, the magnetic separation device 4 is arranged in the sealed space, the dust collector 9 is communicated with the sealed space through the pipeline, dust dissipation at the magnetic separation device 4 is completely eliminated, and optionally, the dust collector 9 is a pulse bag dust collector.

In some embodiments, the solid waste crushing treatment system further comprises an anti-blocking device, wherein, as shown in fig. 2, the anti-blocking device comprises a control box (not shown in the figure), a first electronic weighing device (not shown in the figure) arranged on the first conveyor belt 1, a second weighing device (not shown in the figure) arranged on the second conveyor belt 3, and a pressing device 21 arranged above the crushing cavity of the first crushing device 2, the pressing device 21 is used for applying pressure on the solid waste blocked in the crushing cavity to prevent blocking, and the control box is respectively connected with the hydraulic devices of the first electronic weighing device, the second electronic weighing device and the pressing device.

The pressing device 21 comprises a connecting rod and a pressing arm which are arranged on the outer side wall of the crushing cavity, the pressing arm comprises a straight rod, an arc-shaped arm and a pressing plate which are fixedly connected in sequence, one end of the connecting rod and one end of the hydraulic device are hinged to the outer side wall of the crushing cavity together, the other end of the connecting rod is hinged to one end of the straight rod, and the other end of the hydraulic device is hinged to the middle of the straight rod.

In some embodiments, when the control box detects a difference between the first electronic weighing device and the second electronic weighing device, that is, a difference between the weight of the feeding material and the weight of the discharging material of the first crushing device 2 is large, the control box judges that a material blockage occurs in the crushing cavity, the control box sends an instruction to shorten a hydraulic device of the pressing device, the hydraulic device drives a pressing plate in a pressing arm to press the pressing plate towards the crushing cavity, pressing force between the material blockage and a roller cutter is increased, the material blockage enters the roller cutter to be crushed, and when the material blockage is removed, the control box sends an instruction to keep the pressing plate away from the crushing cavity.

In some embodiments, in order to adapt to different kinds of solid waste, the first crushing device 2 is preferably a shear type four-shaft shredder, and a shear type two-shaft shredder can be selected according to needs, and a shear type four-shaft shredder can be selected to crush various kinds of large-volume solid waste, so that the application range is wider. The second crushing device 6 can be a hammer crusher or a cone crusher, the crushed particle size is smaller, and the magnetic separation device 4 can be a cross-type magnetic separator.

In some embodiments, as shown in fig. 5 to 6, a sieve plate is arranged below the crushing cavity of each of the first crushing device 2 and the second crushing device 6, the sieve plate is used for controlling the particle size of particles, and solid garbage larger than the size of the sieve plate is crushed again by the cutter; the sieve plate is matched with the crushing assembly and consists of at least one sector plate with meshes; the fan-shaped plate is arranged on the supporting shell, and the supporting shell is detachably connected with the four-shaft shredder; and a bearing body is arranged below the supporting shell, and a plurality of rollers are further arranged at the bottom of the bearing body. The bearing body is used for supporting the sieve plate, and a plurality of rollers are further arranged at the bottom of the bearing body, so that the sieve plate can be replaced more conveniently and quickly. The sieve passes through the pinhole of casing four-axis and the engaging lug passes through bolt or cotter pin and can dismantle with breaker and be connected, when the broken granule of the different particle diameters of needs, as long as pull down the sieve, change corresponding sieve again can.

As shown in fig. 5-6, the screen plate of the shearing four-shaft shredder has an opening rate of 80-90%; the meshes on each sector plate are arranged in groups, and the distance between two adjacent groups of meshes is 150-200 mm; the shape of the meshes is hexagonal, and in each group of meshes, two adjacent rows or two adjacent columns of meshes are arranged in a staggered manner; the aperture of the mesh is 60-100 mm. The setting of percentage of opening not only requires can reach required granule particle diameter, the particle diameter of 90% at least first granule is less than or equal to 150mm, still consider the intensity and the life-span problem of sieve, when the percentage of opening is less, can't satisfy the required particle diameter of broken technology, when the percentage of opening is great, the intensity of sieve is difficult to guarantee, life shortens, lead to the cost to rise, combine the intensity and the technological requirement of sieve, the percentage of opening of sieve sets up to 80-90%, in addition, in order to obtain so big percentage of opening, the shape of mesh sets up to the hexagon, compare for circular in the mesh shape, the percentage of opening can do bigger. Further, as shown in fig. 5, in order to increase the strength of the screen plate, the openings are not distributed evenly, but are in a group form, and in the same group of meshes, two adjacent rows or two columns of meshes are arranged in a mutually staggered manner so as to further increase the opening rate, and part of guide ribs are reserved at intervals so as to reinforce the structure of the whole screen plate, wherein the aperture of the screen plate is 60-150mm and the distance D between two groups of meshes is 150-200 mm.

As shown in fig. 5, a guide rib is further provided between two adjacent sets of mesh holes, wherein the first guide rib 211 is provided at the first partition 221, and the first guide rib 211 extends along the first rib 201 toward the second rib 202 and gradually moves away from the mesh hole set at the end; the second guide rib 212 is arranged in the middle of the second spacing part 222 and arranged along the circumferential direction of the sector plate; the third guide rib 213 is provided at the third partition 223, and the third guide rib 213 extends along the third rib 203 toward the second rib 202 and gradually moves away from the mesh hole group at the end; the fourth guide rib 214 is disposed in the middle of the fourth partition 224 and along the circumferential direction of the sector plate. The guide rib not only plays the effect of strengthening sieve bulk strength, still disperses the roller of sieve rubbish granule both sides to the roller and carries out the breakage, and the rubbish granule at sieve both ends leads the central part of roller for rubbish granule crushing efficiency is higher, alleviates the crushing load of two middle rollers, improves its life.

The utility model provides a solid waste crushing processing system passes through special design's sieve except that broken particle diameter accords with the stable effect of burning completely, has still set up anti-blocking device, and degree of automation is higher, and dust collector will produce the equipment department of dust easily and all seal the processing moreover to make whole production process accord with the theory of environmental protection ization.

In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.

Claims

1. A solid waste crushing treatment system is characterized by comprising

2. The solid waste reduction processing system of claim 1, further comprising a conveyor belt comprising a first conveyor belt, a second conveyor belt, and a third conveyor belt, wherein,

the first conveying belt is arranged between the solid garbage pile and the first crushing device and is used for conveying the solid garbage to a storage bin of the first crushing device; and/or

3. The solid waste crushing treatment system of claim 1 further comprising a collection hopper disposed after the second crushing device and connected to the discharge port of the second crushing device by a pipe;

4. The solid waste crushing treatment system according to claim 3, further comprising a dust removing device, wherein the dust removing device is provided with a dust removing device

5. The solid waste crushing treatment system according to claim 4, wherein the magnetic separation device is arranged in a closed space, and the dust removal device is communicated with the closed space through a pipeline; and/or the presence of a gas in the gas,

the dust removal device is a pulse type cloth bag dust removal device.

6. The solid waste crushing treatment system according to claim 2, further comprising an anti-clogging device,

7. The solid waste reduction processing system of claim 1, wherein the first reduction device comprises one of a shear four-axis shredder, a shear two-axis shredder; and/or the presence of a gas in the gas,

the magnetic separation device is a cross type magnetic separator.

8. The solid waste crushing treatment system of claim 7, wherein a sieve plate is arranged below the crushing cavities of the first crushing device and the second crushing device, the sieve plate is used for controlling the particle size of the particles, and the solid waste with the particle size larger than the sieve plate is crushed again by a cutter;

9. The solid waste crushing treatment system of claim 8 wherein the screen plate has an open porosity of 80-90%; and/or the presence of a gas in the gas,

the aperture of the mesh is 60-100 mm.

10. The solid waste crushing treatment system of claim 8, wherein the screen plates of the four-shaft shredder are provided with guide ribs between two adjacent sets of mesh holes, wherein the first guide rib is arranged at the first spacing part, and the first guide rib extends along the first rib to the second rib and gradually gets away from the mesh hole set at the end part; and/or the presence of a gas in the gas,