CN111701983A - Garbage treatment system and garbage treatment process - Google Patents

Abstract

The invention discloses a garbage disposal system and a garbage disposal process, which comprise the following steps: the device comprises a feeding unit, a crushing unit, a screening unit and a granulating unit. The crushing unit can crush the garbage into heavy materials and light materials; the screening unit can relatively separate the heavy materials, the light materials and metal substances; and the granulating unit is arranged on the feeding unit and comprises a granulator, and the granulator can press the light material which is relatively separated from the iron-containing substance into recyclable raw material particles. The substances finally obtained by the whole system are recyclable raw material particles, metal pieces, wood and other non-metal heavy objects, and the three substances can be recycled as renewable resources, so that the aims of recycling garbage, saving energy and reducing emission can be fulfilled.

Description

Garbage treatment system and garbage treatment process

Technical Field

The invention relates to the field of garbage treatment, in particular to a garbage treatment system and a garbage treatment process.

Background

Large garbage means over 5kg in weight or over 0.2m in volume³Or waste with a unidirectional length of more than 1m, the waste is strong in integrity and has the possibility of being recycled or treated after being crushed. Along with the earthThe resources are continuously reduced, and the resource utilization of the large garbage has great significance for protecting the ecological environment. Renewable resources become a new industry in China at present, and a large amount of large garbage becomes a raw material which can be utilized after being treated, so that the environmental protection, the resource saving and the development of circular economy are effectively guaranteed. The processing mode of current major possession rubbish mainly is that the manual work is disassembled or simple breakage, however, the manual work is disassembled inefficiency, and because major possession rubbish size structure difference is great, hardly realizes standardized operation, and is very strong like the spring wholeness in the mattress moreover, disassembles the inconvenient transportation of back. The existing large garbage crushing operation has the following defects:

1. after the crushing, the metal and the textile are not completely separated and still wound together;

2. after crushing, the timber is not completely separated from the textile, and the timber is burnt along with the textile, so that a large amount of high-quality timber is wasted;

3. the treatment efficiency is poor, the size of the final garbage is large, and the incineration efficiency is not high;

4. in the prior art, the treatment of the large garbage of furniture mainly uses crushing and volume reduction as main materials, so that the crushed aggregates of various materials such as metal, wood, plastic, sponge, filler and the like are mixed together, and the classified recovery of the crushed aggregates at the later stage is not facilitated.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a garbage treatment system which can effectively screen crushed garbage.

The invention also provides a garbage treatment process with the garbage treatment system.

A waste disposal system according to an embodiment of the first aspect of the present invention includes: a feeding unit capable of conveying garbage; the crushing unit is connected with the feeding unit and can crush the garbage into heavy materials and light materials; the screening unit is connected with the feeding unit and can relatively separate the heavy materials from the light materials, the screening unit comprises an iron removal component, and the iron removal component can separate the light materials without metal substances from the light materials and the heavy materials; and the granulating unit is connected with the feeding unit and comprises a granulator, and the granulator can press the light material which is relatively separated from the iron-containing substance into recyclable raw material particles.

The garbage disposal system provided by the embodiment of the invention at least has the following beneficial effects: the garbage sequentially passes through the crushing unit, the screening unit and the granulating unit on the feeding unit, so that the large garbage can be treated into recyclable raw material particles. The screening unit can relatively separate the crushed heavy materials and the crushed light materials and can relatively separate the crushed heavy materials and the crushed light materials from metal substances, so that the substances finally obtained by the whole system are non-metal heavy objects such as recoverable raw material particles, metal pieces, wood and the like, and the three substances can be recycled as renewable resources, so that the aims of recycling garbage, saving energy and reducing emission can be fulfilled. The feeding unit enables garbage to be automatically treated, so that the garbage treatment device has the advantages of simple treatment process and strong operability, and can drive more enterprises to participate in large garbage treatment after being introduced into market economy, so that a complete and independent solution supply chain is formed domestically, and thus, the large garbage can be effectively treated, benefits can be brought to the enterprises, and the development of economy is promoted. The large garbage enters a virtuous cycle of generation and treatment, thereby really protecting the environment and benefiting the society.

According to some embodiments of the invention, the crushing unit comprises a double shaft crusher and a four shaft crusher, the feeding unit passing through the double shaft crusher and the four shaft crusher in sequence, the double shaft crusher being capable of coarse crushing of the material and the four shaft crusher being capable of fine crushing of the material.

According to some embodiments of the invention, the double-shaft crusher comprises a first frame, a first sealed cabin is arranged on the first frame, two first crushing rollers are arranged at the bottom of the first sealed cabin, and a circular-arc material pressing device is arranged on the side of the first sealed cabin.

According to some embodiments of the invention, the screening unit comprises a vibrating screen and an air separation machine, the feeding unit sequentially passes through the vibrating screen, the air separation machine and the iron removal assembly, the vibrating screen can screen off materials with overlarge volumes, and the air separation machine can relatively separate the heavy materials from the light materials.

According to some embodiments of the invention, the air separation machine comprises a vibrating feeder, a separation cabin and an adsorption device; the vibrating feeder is connected with the feeding unit, the vibrating feeder and the adsorption device are communicated to the upper portion of the separation cabin, the lower portion of the separation cabin is connected with the iron removal assembly, and at least one inner side wall staggered with the movement direction of the garbage is arranged in the separation cabin.

According to some embodiments of the invention, a return channel is connected to the sieving unit, via which return channel the heavy material and/or the light material of the metalliferous material can be moved to the crushing unit.

According to some embodiments of the invention, the granulation unit comprises a homogenizing box, the feeding unit passes through the homogenizing box and the granulator in sequence, and the granulator can press the light materials after the iron-containing substances are separated out into RDF fuel particles.

A waste treatment process according to an embodiment of the second aspect of the invention, comprising a waste treatment system according to the above embodiment of the first aspect of the invention, comprises the steps of:

A. conveying the garbage to the feeding unit, and starting the feeding unit to drive the garbage to move;

B. the garbage moves to the crushing unit, the crushing unit is started to perform crushing operation, heavy materials and light materials are generated from the garbage, and the heavy materials and the light materials are continuously conveyed backwards by the feeding unit;

C. the heavy material and the light material move to the sieving unit, the sieving unit is started and sieves out the light material without metal substances, and the light material is continuously conveyed backwards by the feeding unit;

D. the light material without metallic substances moves to a granulating unit, the granulator is started and presses the light material into recyclable raw material particles.

The garbage treatment process provided by the embodiment of the invention at least has the following beneficial effects: the screening unit can relatively separate the crushed heavy materials and the crushed light materials and can relatively separate the crushed heavy materials and the crushed light materials from metal substances, so that the substances finally obtained by the whole system are non-metal heavy objects such as recoverable raw material particles, metal pieces, wood and the like, and the three substances can be recycled as renewable resources, so that the aims of recycling garbage, saving energy and reducing emission can be fulfilled. The process has the advantages of simple treatment and strong operability, and can drive more enterprises to participate in the treatment of large garbage after market economy is introduced, so that a complete and independent solution supply chain is formed in China, and thus, the large garbage can be effectively treated, benefits can be brought to the enterprises, and the development of economy is promoted. The large garbage enters a virtuous cycle of generation and treatment, thereby really protecting the environment and benefiting the society.

A waste treatment process according to an embodiment of the third aspect of the invention, comprising a waste treatment system according to the above embodiment of the first aspect of the invention, comprises the steps of:

A. conveying the garbage to the feeding unit, and starting the feeding unit to drive the garbage to move;

B. the garbage moves to the double-shaft crusher, the double-shaft crusher is started and carries out coarse crushing, and the coarsely crushed garbage is continuously conveyed backwards by the feeding unit;

C. the garbage moves to the four-shaft crusher, the double-shaft crusher is started and finely crushed to generate heavy materials and light materials, and the heavy materials and the light materials are continuously conveyed backwards by the feeding unit;

D. the heavy material and the light material move to the sieving unit, the sieving unit is started and sieves out the light material without metal substances, and the light material is continuously conveyed backwards by the feeding unit;

E. the light material without metallic substances moves to a granulating unit, the granulator is started and presses the light material into recyclable raw material particles.

The garbage treatment process provided by the embodiment of the invention at least has the following beneficial effects: carry out coarse crushing and smart breakage to rubbish through biax breaker and four-axis breaker, can be effectively with rubbish breakage for the less light material of volume to, the volume difference of the unable complete broken heavy material of twice crushing operation and light material will be more obvious, and then be convenient for sieve the two.

A waste treatment process according to a fourth aspect of the invention, comprising a waste treatment system according to the above-described first aspect of the invention, comprises the steps of:

A. conveying the garbage to the feeding unit, and starting the feeding unit to drive the garbage to move;

B. the garbage moves to the crushing unit, the crushing unit is started to perform crushing operation, heavy materials and light materials are generated from the garbage, and the heavy materials and the light materials are continuously conveyed backwards by the feeding unit;

C. moving the heavy material and the light material to an empty separating machine, starting a vibrating screen and the empty separating machine, and relatively separating the heavy material and the light material;

D1. the heavy materials move to the iron removal assembly, and the iron removal assembly screens out metal heavy materials and nonmetal heavy materials, and recovers the metal heavy materials and the nonmetal heavy materials;

D2. the light material moves to the iron removal component, and metal-containing light objects and metal-free light objects are screened out by the iron removal component;

E1. the metal-containing light objects move to the crushing unit through the return channel to be crushed again;

E2. the light material without metal moves to a granulating unit, the granulator is started and presses the light material without metal into recyclable raw material particles;

F. and (4) packaging and recovering the raw material particles in a centralized manner.

The garbage treatment process provided by the embodiment of the invention at least has the following beneficial effects: step D1 allows recovery of metal and non-metal weights, while step E2 allows recovery of recyclable feedstock particles. The garbage treatment process can enable the substances finally obtained by the whole system to be non-metal heavy objects such as recoverable raw material particles, metal pieces, wood and the like, and the three substances can be recycled as renewable resources, so that the aims of garbage recycling, energy conservation and emission reduction can be fulfilled. In addition, the process has the advantages of simple treatment and strong operability.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a waste processing system according to an embodiment of the present invention;

FIG. 2 is a schematic illustration of a back side view of the waste treatment system shown in FIG. 1;

FIG. 3 is a schematic view of a twin shaft crusher of the waste disposal system shown in FIG. 1;

FIG. 4 is a schematic view of a four-axis crusher of the waste treatment system shown in FIG. 1;

FIG. 5 is a schematic diagram of an air branch machine of the waste treatment system shown in FIG. 1;

fig. 6 is a schematic flow chart of a garbage disposal process according to an embodiment of the present invention.

Reference numerals: 100 is a feeding unit, and 130 is a chain plate machine;

200 is a crushing unit, 230 is a double-shaft crusher, 231 is a first frame, 232 is a first sealed cabin, 233 is a first crushing zone, 234 is an arc swager, 235 is a first crushing roller, 236 is a first motor, 270 is a four-shaft crusher, 271 is a second frame, 272 is a second sealed cabin, 273 is a second crushing zone, 275 is a second crushing roller, and 276 is a second motor;

300 is a screening unit, 310 is a vibrating screen, 320 is an air separation machine, 321 is a vibrating feeder, 322 is a separation cabin, 323 is an adsorption device, 324 is a fan, 330 is a first magnetic separator, 340 is a second magnetic separator, and 370 is an iron removal component;

400 is a granulating unit, 410 is a refining box, and 420 is a granulator;

500 is a reflux channel; 600 is a dust removal assembly; 700 is a spray assembly; 800 is a control component, and 900 is a transfer forklift.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1, a waste disposal system comprises: a feeding unit 100, a crushing unit 200, a sieving unit 300, and a granulating unit 400. The feeding unit 100 can convey garbage; the crushing unit 200 is connected with the feeding unit 100, and the crushing unit 200 can crush the garbage into heavy materials and light materials; the screening unit 300 is connected with the feeding unit 100, the screening unit 300 can relatively separate heavy materials from light materials, the screening unit 300 comprises an iron removal component 370, and the iron removal component 370 can separate light materials without metal substances from the light materials and the heavy materials; the granulating unit 400 is connected to the feeding unit 100, the granulating unit 400 includes a granulator 420, and the granulator 420 can compact the light material relatively separated from the iron-containing substance into recyclable raw material particles. The garbage sequentially passes through the crushing unit 200, the sieving unit 300, and the granulating unit 400 on the feeding unit 100, so that the large garbage can be treated into recyclable raw material particles. The screening unit 300 can relatively separate not only the crushed heavy materials and light materials, but also the heavy materials and light materials from the metal substances, so that the substances finally obtained by the whole system are non-metal heavy objects such as recoverable raw material particles, metal pieces, wood and the like, and the three substances can be recycled as renewable resources, thereby achieving the purposes of recycling garbage, saving energy and reducing emission. The feeding unit 100 enables garbage to be automatically treated, so that the garbage treatment device has the advantages of simple treatment process and strong operability, and can drive more enterprises to participate in large garbage treatment after being introduced into market economy, so that a complete and independent solution supply chain is formed domestically, and thus, the large garbage can be effectively treated, benefits can be brought to the enterprises, and the development of economy is promoted. The large garbage enters a virtuous cycle of generation and treatment, thereby really protecting the environment and benefiting the society.

In certain embodiments, referring to fig. 2, the crushing unit 200 comprises a twin-shaft crusher 230 and a four-shaft crusher 270, the feed unit 100 passing through the twin-shaft crusher 230 and the four-shaft crusher 270 in sequence. Carry out coarse crushing and smart breakage to rubbish through biax breaker 230 and four-axis breaker 270, can be effectively with rubbish breakage for the less light material of volume to, the volume difference of the unable complete broken heavy material of twice crushing operation and light material will be more obvious, and then be convenient for sieve the two. Of course, the crushing unit 200 may also be composed of other components, such as a rolling machine (not shown), and the specific arrangement manner may be adjusted according to actual needs, which is not limited herein.

In certain embodiments, referring to fig. 3, the twin-shaft crusher 230 includes a first frame 231, a first sealed cabin 232 is disposed on the first frame 231, a first crushing zone 233 is disposed at the bottom of the first sealed cabin 232, two first crushing rolls 235 are disposed in the first crushing zone 233, and a circular-arc swager 234 is disposed at the side of the first sealed cabin 232. The two first crushing rollers 235 can operate simultaneously and crush large garbage into materials with the width of 30-60mm and the length of 150-500mm, so that the large garbage with different sizes can be changed into materials with similar sizes. Meanwhile, by disposing the circular-arc shaped material pressing device 234 in the first sealed compartment 232, various large garbage larger than the effective crushing surface of the first crushing roller 235 can be pressed, and the large garbage can effectively enter between the two first crushing rollers 235 and can be crushed effectively.

In certain embodiments, referring to fig. 4, the four-shaft crusher 270 comprises a second frame 271, a second sealed cabin 272 is disposed on the second frame 271, a second crushing zone 273 is disposed at the bottom of the second sealed cabin 272, and four second crushing rollers 275 are disposed in the second crushing zone 273. The four second crushing rollers 275 perform crushing work on the garbage in a linked manner, and thus the garbage can be effectively crushed and the size of the garbage can be regulated.

In certain embodiments, referring to fig. 1, the screening unit 300 includes a vibrating screen 310 and an emptying machine 320, and the feed unit 100 passes through the vibrating screen 310, the emptying machine 320, and the iron removal assembly 370 in sequence. The vibrating screen 310 can screen out large-sized materials, such as rod-shaped long-strip materials, which are subjected to fine crushing processing by the four-axis crusher 270, so that the phenomenon that the large-sized materials are blocked at the empty separator 320 is prevented. Of course, the sieving unit 300 may also be composed of other components, such as a plurality of clamping manipulators (not shown in the drawings) with different clamping size ranges, and the specific arrangement manner may be adjusted according to actual needs, which is not limited herein.

In certain embodiments, referring to fig. 5, the air separation machine 320 comprises a vibratory feeder 321, a separation cabin 322, and a sorption device 323; the vibrating feeder 321 is connected with the feeding unit 100, the vibrating feeder 321 and the adsorption device 323 are both communicated to the upper part of the separation cabin 322, the lower part of the separation cabin 322 is connected with the iron removal assembly 370, and at least one inner side wall staggered with the movement direction of the garbage is arranged in the separation cabin 322. After receiving the material, the vibrating feeder 321 can vibrate and convey the material, so that the material uniformly enters the upper part of the air distribution machine 320. When the material moves in a free-falling manner in the blank machine 320, the material is blocked by the inner side wall which is staggered with the moving direction of the material. Because the impact when the material of different weight contacts with the inside wall is different, therefore the material of different weight will be broken up by the inside wall. At this time, under the adsorption action of the adsorption device 323, light materials with light weight, such as light drifts, soil and the like, will be absorbed into the adsorption device 323; while heavier material, which is heavier, continues to fall to the bottom of the separation chamber 322. Therefore, the heavy material and the light material can be simply and directly separated relatively, and the next separation process is convenient.

In some embodiments, referring to fig. 5, the adsorption device 323 includes a fan 324 and a cyclone separator, and the fan 324 is operable to drive the cyclone separator to operate and adsorb the light materials. Of course, the adsorption device 323 may also be composed of other components, such as a vacuum air pump, and the specific arrangement may be adjusted according to actual needs, which is not limited herein.

In certain embodiments, referring to fig. 2, a return channel 500 is connected to the sieving unit 300, and heavy material and/or light material of metalliferous material can move to the crushing unit 200 via the return channel 500. The return channel 500 allows the metalliferous material to be returned to the crushing unit 200 for another crushing operation and subsequent screening operation, thereby ensuring that resources are not wasted.

In certain embodiments, referring to FIG. 1, iron removal assembly 370 comprises a first magnetic separator 330 and a second magnetic separator 340, first magnetic separator 330 being in communication with a lower portion of separation vessel 322, second magnetic separator 340 being in communication with adsorption device 323. First magnet separator 330 can sieve the metallic substance in the light material and discharge to separate metal light material and nonmetal light material, and then be convenient for nonmetal light material to carry out granulation operation and the recovery of metal light materials such as iron wire on next step. The second magnetic separator 340 can separate the heavy metal materials from the heavy metal materials, thereby facilitating the recovery of heavy metal materials such as nails and the like and heavy metal materials such as wood.

In certain embodiments, referring to fig. 1, the pelletizing unit 400 includes a homogenizing box 410, and the feed unit 100 passes through the homogenizing box 410 and the pelletizer 420 in sequence, and the pelletizer 420 is capable of pressing the light materials after separation of the iron-containing material into RDF fuel pellets. The head box 410 is capable of mixing the light material so that the light material enters the pelletizer 420 more uniformly. The pelletizer 420 can punch and shape the mixed light materials in a reciprocating mode, and the diameter of the formed RDF fuel particles is 28-50 mm. RDF fuels are characterized by uniform size and uniform calorific content. The forming process can increase the heat value of the light material by four times, and has the advantages of easy transportation and storage.

In certain embodiments, referring to fig. 2, the feeding unit 100 includes a conveyor, a trigger 130 and a transfer forklift 900, the trigger 130 and the transfer forklift 900 being located at both ends of the conveyor belt, respectively. The chain plate machine 130 can load large garbage, and the two-transfer forklift 900 is convenient for conveying away raw material particles after centralized boxing. The conveyor can be a conveying mechanism such as a transmission belt and a shifting fork conveying line.

In certain embodiments, referring to fig. 1, the present waste treatment system further comprises a dust removal system and a spray system. Big piece rubbish has the tiny dust of a lot of hairy antler in the course of handling, and spraying system passes through the high pressure principle and acts on the nozzle and form vaporific little drop of water, and this kind of big piece rubbish dust is very easy to absorb moisture, because of the gravity principle, can descend rapidly. So as to achieve the aim of dust fall. The crushing work is performed in the first and second sealed compartments 232 and 272, so that it is possible to effectively prevent dust from leaking into a workshop and to cause a hazard to safety and health of workers. Meanwhile, a negative pressure dust removal system and a spraying system are added at positions possibly leaked in the whole line, and dust removal operation is carried out through double pipes, so that the working environment is improved, and the health of workers is guaranteed.

In some embodiments, referring to fig. 1, the garbage disposal system further includes a control cabinet, and the staff can control each process through the control cabinet, so as to adjust each detail of the processing process.

Referring to fig. 6, a second aspect of the present invention provides an embodiment of a garbage disposal process, including the above-mentioned garbage disposal system, which includes the following steps: A. conveying the garbage to the feeding unit 100, and starting the feeding unit 100 to drive the garbage to move; B. when the garbage moves to the crushing unit 200, the crushing unit 200 is started to perform crushing operation, heavy materials and light materials are generated from the garbage, and the heavy materials and the light materials are continuously conveyed backwards by the feeding unit 100; C. the heavy material and the light material move to the sieving unit 300, the sieving unit 300 is started and sieves out the light material without metal substances, and the light material is continuously conveyed backwards by the feeding unit 100; D. the light metal-free material moves to the pelletizing unit 400 and the pelletizer 420 starts and presses the light material into recyclable feedstock pellets. The screening unit 300 can relatively separate not only the crushed heavy materials and light materials, but also the heavy materials and light materials from the metal substances, so that the substances finally obtained by the whole system are non-metal heavy objects such as recoverable raw material particles, metal pieces, wood and the like, and the three substances can be recycled as renewable resources, thereby achieving the purposes of recycling garbage, saving energy and reducing emission. The process has the advantages of simple treatment and strong operability, and can drive more enterprises to participate in the treatment of large garbage after market economy is introduced, so that a complete and independent solution supply chain is formed in China, and thus, the large garbage can be effectively treated, benefits can be brought to the enterprises, and the development of economy is promoted. The large garbage enters a virtuous cycle of generation and treatment, thereby really protecting the environment and benefiting the society.

Referring to fig. 6, a third aspect of the present invention provides an embodiment of a waste treatment process, including the above waste treatment system, including the following steps: A. conveying the garbage to the feeding unit 100, and starting the feeding unit 100 to drive the garbage to move; B. the garbage moves to the double-shaft crusher 230, the double-shaft crusher 230 is started and performs coarse crushing, and the coarsely crushed garbage is continuously conveyed backwards by the feeding unit 100; C. when the garbage moves to the four-shaft crusher 270, the two-shaft crusher 230 is started and finely crushed to generate heavy materials and light materials, and the heavy materials and the light materials are continuously conveyed backwards by the feeding unit 100; D. the heavy material and the light material move to the sieving unit 300, the sieving unit 300 is started and sieves out the light material without metal substances, and the light material is continuously conveyed backwards by the feeding unit 100; E. the light metal-free material moves to the pelletizing unit 400 and the pelletizer 420 starts and presses the light material into recyclable feedstock pellets. Carry out coarse crushing and smart breakage to rubbish through biax breaker 230 and four-axis breaker 270, can be effectively with rubbish breakage for the less light material of volume to, the volume difference of the unable complete broken heavy material of twice crushing operation and light material will be more obvious, and then be convenient for sieve the two.

Referring to fig. 6, a fourth aspect of the present invention provides an embodiment of a garbage disposal process, including the above-mentioned garbage disposal system, which includes the following steps: A. conveying the garbage to the feeding unit 100, and starting the feeding unit 100 to drive the garbage to move; B. when the garbage moves to the crushing unit 200, the crushing unit 200 is started to perform crushing operation, heavy materials and light materials are generated from the garbage, and the heavy materials and the light materials are continuously conveyed backwards by the feeding unit 100; C. the heavy material and the light material move to the empty separator 320, the vibrating screen 310 and the empty separator 320 are started, and the heavy material and the light material are relatively separated; D1. the heavy materials move to the iron removal assembly 370, and metal heavy materials and nonmetal heavy materials are screened out by the iron removal assembly 370 and recovered; D2. the light materials move to the iron removal component 370, and metal-containing light materials and metal-free light materials are screened out by the iron removal component 370; E1. the light metal-containing materials move to the crushing unit 200 through the return channel 500 to be crushed again; E2. the light metal-free objects move to the granulating unit 400, the granulator 420 is started and presses the light metal-free objects into recyclable raw material particles; F. and (4) packaging and recovering the raw material particles in a centralized manner. Step D1 allows recovery of metal and non-metal weights, while step E2 allows recovery of recyclable feedstock particles. The garbage treatment process can enable the substances finally obtained by the whole system to be non-metal heavy objects such as recoverable raw material particles, metal pieces, wood and the like, and the three substances can be recycled as renewable resources, so that the aims of garbage recycling, energy conservation and emission reduction can be fulfilled. In addition, the process has the advantages of simple treatment and strong operability.

The various embodiments of the waste treatment process of the present invention described above may also be used in combination, for example, with reference to fig. 6, comprising the steps of:

1. the large garbage is fed through the chain plate machine 130 and moves on the conveyor;

2. the large garbage moves to the double-shaft crusher 230 for coarse crushing;

3. moving the material after the coarse crushing operation to a four-shaft crusher 270 to perform fine crushing operation;

4. the finely crushed material moves to a vibrating screen 310 for screening operation;

5a, returning the large-size materials to the four-shaft crusher 270 through the backflow channel 500 to perform crushing operation again;

5b, moving the small-sized materials to the empty separator 320 for screening, so that the heavy materials and the light materials are relatively separated;

moving the heavy materials to a second magnetic separator 340, so that the heavy metal materials and the heavy non-metal materials are relatively separated and recovered;

6b, moving the light materials to the first magnetic separator 330 for screening, so that the metal light materials and the nonmetal light materials are relatively separated;

7a, returning the light metal materials to the four-shaft crusher 270 through the backflow channel 500 to perform crushing operation again;

conveying the non-metal light materials to a material homogenizing box 410 and a granulator 420 in sequence, and performing reciprocating punch forming on the non-metal light materials by the granulator 420 to generate RDF fuel particles;

and 8, conveying the RDF fuel particles to a transfer forklift 900 through a conveyor for centralized packing and recycling.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (10)

1. A waste disposal system, comprising:

a feeding unit (100), the feeding unit (100) being capable of transporting refuse;

the crushing unit (200) is connected with the feeding unit (100), and the crushing unit (200) can crush the garbage into heavy materials and light materials;

the screening unit (300) is connected with the feeding unit (100), the screening unit (300) can relatively separate the heavy materials from the light materials, the screening unit (300) comprises an iron removal assembly (370), and the iron removal assembly (370) can separate the light materials without metal substances from the light materials and the heavy materials;

and the granulating unit (400) is connected with the feeding unit (100), the granulating unit (400) comprises a granulator (420), and the granulator (420) can press the light materials which are relatively separated from the iron-containing substances into recyclable raw material particles.

2. The waste disposal system of claim 1, wherein:

crushing unit (200) include biax breaker (230) and four-axis breaker (270), pay-off unit (100) passes in proper order biax breaker (230) with four-axis breaker (270), biax breaker (230) can carry out coarse crushing to the material, four-axis breaker (270) can carry out fine crushing to the material.

3. The waste disposal system of claim 2, wherein:

the double-shaft crusher (230) comprises a first frame (231), a first sealed cabin (232) is arranged on the first frame (231), two first crushing rollers (235) are arranged at the bottom of the first sealed cabin (232), and an arc material pressing device (234) is arranged on the side of the first sealed cabin (232).

4. The waste disposal system of claim 1, wherein:

screening unit (300) include shale shaker (310) and empty extension (320), pay-off unit (100) pass in proper order shale shaker (310) empty extension (320) with deironing subassembly (370), shale shaker (310) can sieve the too big material of volume, empty extension (320) can with the heavy burden with light material relatively separation.

5. The waste disposal system of claim 4, wherein:

the air distribution machine (320) comprises a vibrating feeder (321), a separation cabin (322) and an adsorption device (323); the vibrating feeder (321) is connected with the feeding unit (100), the vibrating feeder (321) and the adsorption device (323) are communicated to the upper portion of the separation cabin (322), the lower portion of the separation cabin (322) is connected with the iron removal assembly (370), and at least one inner side wall staggered with the movement direction of garbage is arranged in the separation cabin (322).

6. The waste disposal system of claim 5, wherein:

a return channel (500) is connected to the sieving unit (300), via which return channel (500) the heavy material and/or the light material of the metalliferous material can be moved to a crushing unit (200).

7. The waste disposal system of claim 1, wherein:

the granulating unit (400) comprises a material homogenizing box (410), the feeding unit (100) sequentially passes through the material homogenizing box (410) and the granulator (420), and the granulator (420) can press the light materials separated from the iron-containing substances into RDF fuel particles.

8. A waste treatment process using the waste treatment system according to any one of claims 1 to 7, characterized in that it comprises the following steps:

A. conveying the garbage to the feeding unit (100), and starting the feeding unit (100) to drive the garbage to move;

B. the garbage moves to the crushing unit (200), the crushing unit (200) is started to perform crushing operation, heavy materials and light materials are generated from the garbage, and the heavy materials and the light materials are continuously conveyed backwards by the feeding unit (100);

C. the heavy material and the light material move to the sieving unit (300), the sieving unit (300) is started to sieve the light material without metal substances, and the light material is continuously conveyed backwards by the feeding unit (100);

D. the light metal-free material moves to a pelletizing unit (400) and the pelletizer (420) starts and presses the light material into recyclable feedstock pellets.

9. A waste treatment process using the waste treatment system according to any one of claims 2 to 3, characterized by comprising the steps of:

A. conveying the garbage to the feeding unit (100), and starting the feeding unit (100) to drive the garbage to move;

B. the garbage moves to the double-shaft crusher (230), the double-shaft crusher (230) is started and coarsely crushed, and the coarsely crushed garbage is continuously conveyed backwards by the feeding unit (100);

C. the garbage moves to a four-shaft crusher (270), the two-shaft crusher (230) is started and finely crushed to generate heavy materials and light materials, and the heavy materials and the light materials are continuously conveyed backwards by the feeding unit (100);

D. the heavy material and the light material move to the sieving unit (300), the sieving unit (300) is started to sieve the light material without metal substances, and the light material is continuously conveyed backwards by the feeding unit (100);

E. the light metal-free material moves to a pelletizing unit (400) and the pelletizer (420) starts and presses the light material into recyclable feedstock pellets.

10. A waste treatment process using the waste treatment system of claim 6, comprising the steps of:

A. conveying the garbage to the feeding unit (100), and starting the feeding unit (100) to drive the garbage to move;

B. the garbage moves to the crushing unit (200), the crushing unit (200) is started to perform crushing operation, heavy materials and light materials are generated from the garbage, and the heavy materials and the light materials are continuously conveyed backwards by the feeding unit (100);

C. the heavy material and the light material move to the empty separator (320), the vibrating screen (310) and the empty separator (320) are started, and the heavy material and the light material are relatively separated;

D1. the heavy materials move to the iron removal assembly (370), and metal heavy materials and nonmetal heavy materials are screened out by the iron removal assembly (370) and are recovered;

D2. the light materials move to the iron removal component (370), and metal-containing light materials and metal-free light materials are screened out by the iron removal component (370);

E1. the light metal-containing materials move to the crushing unit (200) through the return channel (500) to be crushed again;

E2. the light metal-free objects move to a granulating unit (400), and a granulator (420) is started and presses the light metal-free objects into recyclable raw material particles;

F. and (4) packaging and recovering the raw material particles in a centralized manner.

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