阅读说明：本技术 工业固体废弃物无害化处理设备及处理方法 (Industrial solid waste harmless treatment equipment and treatment method ) 是由 陈顺 李效友 于 2020-11-25 设计创作，主要内容包括：本发明提供工业固体废弃物无害化处理设备,涉及废弃物处理领域,包括导料管,所述导料管与处理筒连通,所述处理筒包括与导料管转动连接的转筒,所述转筒外侧套有与导料管固定连接的外筒,所述转筒包括以转筒轴线为路径呈线性阵列的若干筒环,且筒环之间留有间距,每个所述筒环内侧分别与螺旋输料板固定连接,相邻所述筒环之间通过横管径向固定连接,所述转筒与导料管连接端的相对一端与集料筒转动连接,所述外筒底部设置有流道,本发明中,通过转筒转动使工业废料在转筒中翻动,使碎料由转环之间的间隙中落下,同时采用风机使转筒内产生向外侧的压力,加速筛分过程,并将粘附在大体积废料上的微粒吹落,以保证高程度筛分。(The invention provides harmless treatment equipment for industrial solid waste, which relates to the field of waste treatment and comprises a material guide pipe, wherein the material guide pipe is communicated with a treatment cylinder, the treatment cylinder comprises a rotary cylinder rotationally connected with the material guide pipe, an outer cylinder fixedly connected with the material guide pipe is sleeved outside the rotary cylinder, the rotary cylinder comprises a plurality of cylinder rings in linear array by taking the axis of the rotary cylinder as a path, intervals are reserved among the cylinder rings, the inner side of each cylinder ring is respectively and fixedly connected with a spiral material conveying plate, the adjacent cylinder rings are radially and fixedly connected through a transverse pipe, the opposite end of the connecting end of the rotary cylinder and the material guide pipe is rotationally connected with a material collecting cylinder, and the bottom of the outer cylinder is provided with a flow channel. And blows off particles adhering to the bulk waste to ensure a high degree of screening.)

1. Industrial solid waste innocent treatment equipment, including passage (1), its characterized in that: the material guide pipe (1) is communicated with the treatment barrel (2), the treatment barrel (2) comprises a rotary drum (23) rotatably connected with the material guide pipe (1), an outer barrel (21) fixedly connected with the material guide pipe (1) is sleeved on the outer side of the rotary drum (23), the rotary drum (23) comprises a plurality of barrel rings (231) which are linearly arrayed by taking the axis of the rotary drum (23) as a path, intervals are reserved among the barrel rings (231), the inner side of each barrel ring (231) is fixedly connected with a spiral material conveying plate (232), adjacent barrel rings (231) are radially and fixedly connected through a transverse pipe (233), the opposite end of the connecting end of the rotary drum (23) and the material guide pipe (1) is rotatably connected with the material collecting barrel (3), a flow passage (4) is arranged at the bottom of the outer barrel (21), an air barrel (42) is arranged at the end part of the flow passage (4), and a fan (421) is arranged in the air barrel, the air duct (42) is communicated with a transverse pipe (233) through an air pipe (423), and the transverse pipe (233) is provided with an aeration hole (2333).

2. The industrial solid waste innocent treatment apparatus according to claim 1, wherein: the number of the rotary drums (23) is at least three, all the rotary drums (23) are sequentially coaxially sleeved, and the distance from the inner rotary drum (23) to the middle drum ring (231) of the outer rotary drum (23) is sequentially reduced.

3. The industrial solid waste innocent treatment apparatus according to claim 2, wherein: the rotary rings in the same rotary cylinder (23) are the same, and the spiral material conveying plates (232) fixedly connected with the inner walls of the adjacent rotary rings in the same rotary cylinder (23) are stacked end to end.

4. The industrial solid waste innocent treatment apparatus according to claim 2, wherein: the transverse pipe (233) between the adjacent cylinder rings (231) comprises a sleeve pipe (2331) fixedly connected with the previous cylinder ring (231), a sliding pipe (2332) is connected in the sleeve pipe (2331) in a sliding mode, a tension spring (2335) is arranged between the sliding pipe (2332) and the sleeve pipe (2331), and the sliding pipe (2332) is communicated through a connecting pipe.

5. The industrial solid waste innocent treatment apparatus according to claim 4, wherein: the connecting pipe comprises a Y-shaped pipe (234), and the Y-shaped pipe (234) is communicated with an adjacent Y-shaped pipe (234) through a hose (235).

6. The industrial solid waste innocent treatment apparatus according to claim 5, wherein: a baffle disc (2334) fixedly connected with one end of the tension spring (2335) is fixed on the sleeve (2331), and the aeration hole (2333) is arranged on the side surface of the sleeve (2331) between the baffle disc (2334) and the cylinder ring (231).

7. The industrial solid waste innocent treatment apparatus according to claim 2, wherein: the bottom of the flow channel (4) is a slope, the air duct (42) is arranged above the right end of the flow channel (4), the left end of the air duct (42) is rotatably connected with the air suction tube (41), the top surface of the air suction tube (41) is provided with a filter plate (411), and the top surface of the filter plate (411) is slidably connected with a scraper (415) fixedly connected in the flow channel (4).

8. The industrial solid waste innocent treatment apparatus according to claim 7, wherein: the bottom of the air pumping cylinder (41) is fixedly connected with a balancing weight (416), the inside of the air pumping cylinder (41) is fixedly connected with a fan blade (413), the fan blade (413) is provided with a spray hole (414), and the spray hole (414) is communicated with one end of a water pipe (422).

9. The industrial solid waste innocent treatment apparatus according to claim 2, wherein: the material collecting barrel (3) comprises a bent barrel which is rotatably connected with the right end of the rotary barrel (23), the bent barrel comprises a plurality of weak bent pipes corresponding to the number of layers of the rotary barrel (23), and the side faces of the bent pipes are connected with a material guide plate.

10. The method for treating industrial solid waste innocent treatment equipment according to any one of claims 2 to 9, wherein: let in passage guide (1) with industrial waste when discharging, make industrial waste turn under the rotation drive of handling a section of thick bamboo (2), there is the interval between inboard fixed connection spiral conveying board (232) of change ring in rotary drum (23) and the change ring, make industrial waste constantly turn in handling a section of thick bamboo (2) horizontal transport process, the less waste material of volume falls by the change ring clearance in making industrial waste, adopt fan (421) convulsions to make rotary drum (23) central part produce the wind pressure to the outside simultaneously, separation efficiency accelerates, can separate the industrial waste of different volumes, the particle that can blow under to a certain wind pressure is handled alone, avoid unified particle that the in-process of piling up untimely leads to diffuses to the air under the air current effect in, influence the environment.

Technical Field

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

Background

The industrial solid waste refers to solid waste generated in industrial production, and comprises general solid waste and harmful solid waste, and mainly comprises solid waste generated by metallurgy and thermal power generation, the total amount of industrial waste generated in China per year is more than 300 ten thousand tons, the industrial solid waste is higher in utilization degree compared with waste water and waste gas, and can be used as building materials or used for recycling energy and industrial materials from the building materials, but the utilization degree is not high due to the limitation of recycling technology, the annual utilization amount is only 100 ten thousand tons, most of industrial solid waste is treated in a landfill mode, so that the waste of resources is caused, and the environment is influenced.

The patent No. CN110332543B discloses a greening treatment system for industrial solid waste, which comprises a box body, wherein a combustion chamber is arranged in the box body, the combustion chamber can be used for carrying out combustion treatment on the solid waste and converting precious metal elements into metal oxides, communicating holes are symmetrically arranged in the inner walls of the lower sides of the combustion chamber in a bilateral symmetry mode and are communicated with each other, storage chambers are communicated between the inner walls of the lower sides of the communicating holes, the greening treatment system directly crushes the solid waste and then burns the solid waste, the precious metal elements are converted into oxides and then are mixed with an acid reagent to remove the precious metal elements, water can be dissolved in the products, other products after combustion can be obtained, some combustion products can be adsorbed and treated between discharges, the use cost of the device is low, and the finally discharged products can not pollute the environment.

However, since the solid waste includes particles having a small particle size, the particles adhere to the solid waste having a large particle size, but if the particles are blown by wind or vibrated during crushing, the particles are diffused into the air, which affects the environment.

Disclosure of Invention

The invention aims to provide equipment and a method for harmless treatment of industrial solid waste, so as to solve the technical problems.

In order to solve the technical problems, the invention adopts the following technical scheme: industrial solid waste innocent treatment equipment, including the passage, passage and treatment section of thick bamboo intercommunication, treatment section of thick bamboo includes the rotary drum of being connected with the passage rotation, rotary drum outside cover has the urceolus with passage fixed connection, the rotary drum includes and uses the rotary drum axis to be a plurality of collars of linear array as the route, and leaves the interval between the collar, every collar inboard respectively with spiral feeding board fixed connection, adjacent through violently managing radial fixed connection between the collar, the relative one end of rotary drum and passage link rotates with the charging barrel and is connected, the urceolus bottom is provided with the runner, the runner tip is provided with the dryer, be provided with the fan in the dryer, the dryer passes through the tuber pipe and violently manages the intercommunication, violently manage and be provided with the aeration hole.

Preferably, the number of the rotary drums is at least three, all the rotary drums are sequentially coaxially sleeved, and the distance from the inner-layer rotary drum to the middle drum ring of the outer-layer rotary drum is sequentially reduced.

Preferably, the rotating rings in the same rotating cylinder are the same, and the spiral material conveying plates fixedly connected with the inner walls of the adjacent rotating rings in the same rotating cylinder are stacked end to end.

Preferably, the transverse pipe between the adjacent cylinder rings comprises a sleeve fixedly connected with the previous cylinder ring, a sliding pipe is connected inside the sleeve in a sliding mode, a tension spring is arranged between the sliding pipe and the sleeve, and the sliding pipes are communicated through a connecting pipe.

Preferably, the connecting pipe comprises a Y-shaped pipe, and the Y-shaped pipe is communicated with the adjacent Y-shaped pipe through a hose.

Preferably, the sleeve is fixed with a baffle disc fixedly connected with one end of the tension spring, and the aeration hole is formed in the side face of the sleeve between the baffle disc and the cylinder ring.

Preferably, the bottom of the flow passage is a slope, the air duct is arranged above the right end of the flow passage, the left end of the air duct is rotatably connected with the air suction drum, the top surface of the air suction drum is provided with a filter plate, and the top surface of the filter plate is slidably connected with a scraper fixedly connected in the flow passage.

Preferably, the bottom of the air pumping cylinder is fixedly connected with a balancing weight, a fan blade is fixedly connected in the air pumping cylinder, and the fan blade is provided with a spray hole which is communicated with one end of the water pipe.

Preferably, the material collecting barrel comprises a bent barrel rotatably connected with the right end of the rotary barrel, the bent barrel comprises a plurality of weak bent pipes corresponding to the number of layers of the rotary barrel, and the side surfaces of the bent pipes are connected with material guide plates.

The treatment method of industrial solid waste innocent treatment equipment, let in the passage when discharging industrial waste, make industrial waste turn under the rotation drive in the processing barrel, there is the interval between inboard fixed connection spiral material conveying board of change in the rotary drum and the change, make industrial waste constantly turn in the horizontal transportation process in the processing barrel, make the less waste material of volume fall down by the change clearance in the industrial waste, adopt the fan convulsions simultaneously to make rotary drum central part produce the wind pressure to the outside, separation efficiency accelerates, can separate the industrial waste of different volumes, the particle that can blow under to a constant wind pressure is handled alone, avoid the particle that the untimely leads to of handling in the unified stacking process to diffuse to the air under the air current effect, influence the environment.

The invention has the beneficial effects that:

1. the industrial waste is guided into a rotary drum which is rotationally connected with a material guide cylinder, the rotary drum rotates to turn the industrial waste in the rotary drum, so that the crushed materials fall down from gaps among rotary rings to screen the waste with different volume sizes, meanwhile, a fan is adopted to generate outward pressure in the rotary drum, the screening process is accelerated, and particles adhered to the large-volume waste are blown off to ensure high-degree screening;

2. the transverse pipe is in sliding connection with the sliding pipe through the sleeve, the distance between the two cylinder rings can be changed by arranging the tension spring in the sleeve, so that the adjustment can be performed according to the volume of waste to be screened, the adjustment mode adopts pneumatic adjustment, the sliding pipe is pumped by gas to change the relative position between the sliding pipe and the sleeve, and along with the rotation of the rotating ring, external airflow changes to enable the cylinder rings to vibrate in a small range, so that dust adhered to the large-volume waste can be shaken off;

3. the air suction cylinder is arranged in the flow channel and rotatably connected with the air cylinder, airflow enters the aeration port along the backflow of the air suction cylinder, the air cylinder and the air pipe, the airflow circulates in the equipment, the environment pollution caused by the fact that dust drops outside the equipment is avoided, fan blades are arranged in the air suction cylinder, the air suction cylinder is driven to rotate by the airflow, the filter plate and the scraper plate slide relatively, filter holes in the filter plate are kept smooth, the fan blades are provided with spray holes, small particles entering the air suction cylinder can settle, and the air outlet is prevented from being blocked in the gas backflow process.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of a treatment canister according to the present invention;

FIG. 3 is a schematic perspective view of the drum of the present invention;

FIG. 4 is a partial cross-sectional view of the cartridge ring of the present invention;

FIG. 5 is a cross-sectional view of a flow passage of the present invention;

reference numerals: 1. a material guide pipe; 2. a treatment cylinder; 21. an outer cylinder; 22. a turntable; 23. a rotating drum; 231. a cylindrical ring; 2311. an airway; 232. a spiral material conveying plate; 233. a transverse tube; 2331. a sleeve; 2332. a slide pipe; 2333. an aeration hole; 2334. a catch tray; 2335. a tension spring; 234. a Y-shaped tube; 235. a hose; 236. a telescopic pipe; 3. a material collecting barrel; 31. an aggregate sleeve; 32. an aggregate inner cylinder; 4. a flow channel; 41. an air pumping cylinder; 411. filtering the plate; 412. filtering holes; 413. a fan blade; 414. spraying a hole; 415. a squeegee; 416. a balancing weight; 42. an air duct; 421. a fan; 422. a water pipe; 423. an air duct; 43. an ash discharge port; 5. a support leg; 6. and (4) connecting the pipes.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easily understood, the invention is further described below with reference to the specific embodiments and the attached drawings, but the following embodiments are only the preferred embodiments of the invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.

Specific embodiments of the present invention are described below with reference to the accompanying drawings.

Example 1

As shown in fig. 1-3, the industrial solid waste innocent treatment device comprises a material guiding pipe 1, the material guiding pipe 1 is communicated with a treatment barrel 2, the treatment barrel 2 comprises a rotating drum 23 rotatably connected with the material guiding pipe 1, an outer drum 21 fixedly connected with the material guiding pipe 1 is sleeved outside the rotating drum 23, the rotating drum 23 comprises a plurality of drum rings 231 in a linear array by taking the axis of the rotating drum 23 as a path, a space is reserved between the drum rings 231, the inner side of each drum ring 231 is fixedly connected with a spiral material conveying plate 232, adjacent drum rings 231 are radially and fixedly connected through a transverse pipe 233, the opposite end of the connecting end of the rotating drum 23 and the material guiding pipe 1 is rotatably connected with a material collecting barrel 3, a flow passage 4 is arranged at the bottom of the outer drum 21, an air drum 42 is arranged at the end of the flow passage 4, a fan 421 is arranged in the air drum 42, the air drum 42 is communicated, the horizontal pipe 233 is provided with aeration holes 2333, the number of the rotary drums 23 is at least three, all the rotary drums 23 are sequentially and coaxially sleeved, the distance from the inner rotary drum 23 to the middle drum ring 231 of the outer rotary drum 23 is sequentially reduced, the rotary rings in the same rotary drum 23 are the same, and the spiral material conveying plates 232 fixedly connected with the inner walls of the adjacent rotary rings in the same rotary drum 23 are stacked end to end.

When industrial waste is treated, the waste is added into a treatment barrel 2 through a material guide pipe 1, the side surface of a rotary disc 22 rotationally connected with the material guide pipe 1 is fixedly connected with one end of a rotary drum 23, the outer side of the rotary disc 22 is fixedly connected with an outer drum 21 fixed on the material guide pipe 1, the rotary disc 22 is driven to rotate by adopting external driving equipment, the waste rotates along with the rotation of the rotary drum 23, the rotary drum 23 consists of a plurality of linear array drum rings 231, a certain gap is arranged between the drum rings 231, fertilizer with smaller volume can be discharged from the gap, a spiral material conveying plate 232 is fixedly connected in the drum ring 231, the waste moves to the right side of a treatment box under the guiding action of the spiral material discharging plate while rotating along with the rotary drum 23 and is discharged from a material collecting barrel 3, fine materials are screened by the rotary drum 23 sleeved in a multilayer manner, fine dust is discharged from a flow passage 4, and in the rotating process of the rotary drum 23, a fan 421 in the air, the dust particles adhered to the outside of the waste with large volume are blown off, and meanwhile, the fan 421 enables the air flow to flow back into the outer cylinder 21 through the air pipe 423 and the aeration holes 2333, so that the external air environment of the treatment cylinder 2 is ensured to be good, and the particles blown away under the action of strong air flow in the waste can be separated and treated independently.

Example 2

As shown in fig. 1-4, the industrial solid waste innocent treatment device comprises a material guiding pipe 1, the material guiding pipe 1 is communicated with a treatment barrel 2, the treatment barrel 2 comprises a rotating drum 23 rotatably connected with the material guiding pipe 1, an outer drum 21 fixedly connected with the material guiding pipe 1 is sleeved outside the rotating drum 23, the rotating drum 23 comprises a plurality of drum rings 231 in a linear array by taking the axis of the rotating drum 23 as a path, a space is reserved between the drum rings 231, the inner side of each drum ring 231 is fixedly connected with a spiral material conveying plate 232, adjacent drum rings 231 are radially and fixedly connected through a transverse pipe 233, the opposite end of the connecting end of the rotating drum 23 and the material guiding pipe 1 is rotatably connected with a material collecting barrel 3, a flow passage 4 is arranged at the bottom of the outer drum 21, an air drum 42 is arranged at the end of the flow passage 4, a fan 421 is arranged in the air drum 42, the air drum 42 is communicated, the horizontal pipe 233 is provided with aeration holes 2333, at least three rotary drums 23 are provided, all the rotary drums 23 are sequentially and coaxially sleeved, the distance from the inner rotary drum 23 to the middle cylinder ring 231 of the outer rotary drum 23 is sequentially reduced, the horizontal pipe 233 between the adjacent cylinder rings 231 comprises a sleeve 2331 fixedly connected with the previous cylinder ring 231, a sliding pipe 2332 is slidably connected in the sleeve 2331, a tension spring 2335 is arranged between the sliding pipe 2332 and the sleeve 2331, the sliding pipe 2332 is communicated through a connecting pipe, the connecting pipe comprises a Y-shaped pipe 234, the Y-shaped pipe 234 is communicated with the adjacent Y-shaped pipe 234 through a hose 235, a baffle disc 2334 fixedly connected with one end of the tension spring 2335 is fixed on the sleeve 2331, and the aeration holes 2333 are arranged on the side surface of the sleeve 2331 between the baffle disc 2334 and the cylinder rings 231.

The horizontal pipe 233 is arranged in a manner that the sleeve 2331 is slidably connected with the slide pipe 2332, the adjacent slide pipes 2332 are connected through the Y-shaped pipe 234 and the hose 235, the end of the slide pipe 2332 is connected with the tension spring 2335 in the sleeve 2331, the distance between the adjacent cylinder rings 231 can be controlled through the air pressure by applying a certain air pressure to the slide pipe 2332, so that the wastes with different volume sizes can be screened, it is understood that the total length of the rotary drum 23 is changed after the distance between the adjacent cylinder rings 231 is changed, so that the end position of the rotary drum 23 is changed along with the change of the end position of the rotary drum 23, the connecting pipe 6 can be replaced by a telescopic pipe, so that the end of the rotary drum 23 is always connected with the material collecting cylinder 3, the aeration hole 2333 is arranged on the sleeve 2331, the air passage 2311 is arranged in the cylinder ring 231, the adjacent cylinder rings 231 are connected through the telescopic pipe 236, so that the air discharged from the air pipe 42 can be discharged through the aeration hole 233, dust adhered to the waste materials can be blown off, and it is understood that the cylinder ring 231 rotates along with the rotation of the rotary drum 23, so that the air pipe 423 is connected with the cylinder ring 231 at the rightmost end of the rotary drum 23 through a corresponding connecting structure, so that the rotary drum 23 can rotate and the air passage 2311 inside the rotary drum is always communicated with the air pipe 423.

Example 3

As shown in fig. 1-5, the industrial solid waste innocent treatment device comprises a material guiding pipe 1, the material guiding pipe 1 is communicated with a treatment barrel 2, the treatment barrel 2 comprises a rotating drum 23 rotatably connected with the material guiding pipe 1, an outer drum 21 fixedly connected with the material guiding pipe 1 is sleeved outside the rotating drum 23, the rotating drum 23 comprises a plurality of drum rings 231 in a linear array by taking the axis of the rotating drum 23 as a path, a space is reserved between the drum rings 231, the inner side of each drum ring 231 is fixedly connected with a spiral material conveying plate 232, adjacent drum rings 231 are radially and fixedly connected through a transverse pipe 233, the opposite end of the connecting end of the rotating drum 23 and the material guiding pipe 1 is rotatably connected with a material collecting barrel 3, a flow passage 4 is arranged at the bottom of the outer drum 21, an air drum 42 is arranged at the end of the flow passage 4, a fan 421 is arranged in the air drum 42, the air drum 42 is communicated, the horizontal pipe 233 is provided with aeration holes 2333, at least three rotating cylinders 23, and all the rotary drums 23 are sequentially and coaxially sleeved, the distance from the inner rotary drum 23 to the middle ring 231 of the outer rotary drum 23 is sequentially reduced, the bottom of the flow passage 4 is a slope, the air duct 42 is arranged above the right end of the flow passage 4, the left end of the air duct 42 is rotatably connected with the air extraction duct 41, the top surface of the air extraction cylinder 41 is provided with a filter plate 411, the top surface of the filter plate 411 is connected with a scraping plate 415 fixedly connected in the flow passage 4 in a sliding way, the bottom of the air pumping cylinder 41 is fixedly connected with a balancing weight 416, the inside of the air pumping cylinder 41 is fixedly connected with a fan blade 413, the fan blade 413 is provided with a jet hole 414, the jet hole 414 is communicated with one end of the water pipe 422, the material collecting barrel 3 comprises a bent barrel which is rotatably connected with the right end of the rotary barrel 23, the bent barrel comprises a plurality of weak bent pipes corresponding to the number of layers of the rotary barrel 23, and the side faces of the bent pipes are connected with material guide plates.

The left end of an air duct 42 is connected with an air suction cylinder 41, the air in an outer cylinder 21 can enter the air suction cylinder 42 by the rotation of a fan 421 in the air duct 42, the surface of the air suction cylinder 41 is provided with a filter plate 411, large particles in the air can be filtered, the air suction cylinder 41 is rotatably connected with the air duct 42, a fan blade 413 is fixedly connected in the air suction cylinder 41, the fan blade 413 can be driven to rotate when the air flow passes through the fan blade 413, so that the air suction cylinder 41 rotates relative to the air duct 42, the filter plate 411 on the surface of the air suction cylinder 41 slides relative to a scraper 415, so that a filter hole 412 on the filter plate 411 is through, the filter hole 412 is prevented from being blocked to influence the air flow, meanwhile, the fan blade 413 is provided with a spray hole 414, the water pipe 422 is connected with a water source for spraying water mist, small-particle micro dust entering the air suction cylinder 41 is prevented from being settled under the action of the water mist, the blockage of the air feed cylinder 2333, waste with different sizes can be discharged from different outlets, particles which are smaller and can be suspended in the air are discharged from the ash discharge port 43 at the right end of the flow channel 4, and the problem that the environment is affected because the micro dust is diffused into the air under the action of the air flow in the natural discharge and stacking process can be solved.

The working principle is as follows: when the industrial solid waste is treated, the waste is sent into the material guide pipe 1 and enters the rotary drum 23, the rotary disc 22 is driven to rotate relative to the material guide pipe 1 by an external driving device, the rotary drum 23 is driven to rotate, the waste with smaller volume falls down between adjacent drum rings 231 in the rotary drum 23 and enters the next-stage rotary drum 23 for sorting, and meanwhile, the air flow is circulated in the outer drum 21 by matching with the fan 421 in the air duct 42 to generate downward pressure from the center of the rotary drum 23, so that the micro-dust attached to the bulk waste falls off, the waste is separately stacked, the classification treatment is facilitated, and meanwhile, the influence on the environment caused by the flying of the micro-dust in the waste due to the action of the air flow in the stacking process is avoided.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.