Aerated block waste recovery device

Abstract

The utility model relates to the technical field of aerated block production, in particular to an aerated block waste recovery device which comprises a box body with a feeding hopper, a stirring mechanism, a grinding mechanism, a fine grinding mechanism and a collecting hopper, the stirring mechanism, the grinding mechanism and the fine grinding mechanism are sequentially connected along the box body from top to bottom, and the grinding mechanism is used for grinding waste into first granularity. The fine grinding mechanism is used for grinding the waste into second granularity, and the first granularity is larger than the second granularity; when waste is recycled, the waste is guided in along the feeding hopper, the stirring mechanism stirs the waste, so that the waste dispersedly flows to the crushing mechanism, the crushing mechanism crushes the waste to first granularity and then flows to the fine grinding mechanism, and the fine grinding mechanism crushes the waste to second granularity and then flows to the collecting hopper. According to the utility model, the size of the waste is gradually crushed from the first granularity to the second granularity, so that the secondary crushing of the waste is smoothly realized, the waste is fully crushed, and the mixing effect of the waste is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aerated block production, in particular to an aerated block waste recovery device. Background Art

[0002] Aerated blocks are porous silicate blocks made by adding aluminum powder as an air-entraining agent to a mixture of calcium and silica materials. The blocks are then poured and molded, expanded with aeration, pre-cured and cut, and then cured with high-pressure steam. Currently, aerated block cutting machines produce a significant amount of scrap after cutting the block blanks. To improve the utilization of this scrap, it is typically recycled and crushed for reuse.

[0003] In the existing technology, the waste is chopped by the reamer of the cutting device and then discharged into the crushing device for further crushing. After being crushed by the crushing roller, it is discharged into the stirring device for stirring with the waste pulp. After being fully stirred by the stirring blades of the stirring device, it is pulped again, thereby achieving the purpose of recycling the waste.

[0004] The above-mentioned existing technical solutions have the following defects: in the actual production process, the crushed waste is crushed by the crushing roller and then directly mixed into the stirring device for stirring. Since the waste discharged from the two crushing rollers cannot directly meet the mixing requirements, the waste is not fully crushed, which affects the mixing effect. Utility Model Content

[0005] In response to the deficiencies of the prior art, the utility model provides an aerated block waste recovery device, which gradually crushes the waste from a first particle size to a second particle size, smoothly realizes the secondary crushing of the waste, fully crushes the waste, and improves the mixing effect of the waste.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The utility model provides an aerated block waste recovery device, comprising a box body with a feed hopper, a stirring mechanism, a crushing mechanism and a fine grinding mechanism connected in sequence from top to bottom along the box body, and a collecting hopper, wherein the crushing mechanism is used to crush the waste to a first particle size, and the fine grinding mechanism is used to crush the waste to a second particle size, wherein the first particle size is larger than the second particle size;

[0008] When recycling waste, the waste is introduced along the feed hopper, and the stirring mechanism stirs the waste so that the waste is dispersed and flows to the crushing mechanism. The crushing mechanism crushes the waste to a first particle size and then flows to the fine grinding mechanism. The fine grinding mechanism crushes the waste to a second particle size and then flows to the collecting hopper.

[0009] The fine grinding mechanism includes a fine grinding platform installed on the inner side of the box body, a movable frame connected to the fine grinding platform for sliding up and down, a top plate connected to the inner side of the box body, and a fine grinding drive unit for driving the movable frame to move up and down. The fine grinding drive unit is drivingly connected to the movable frame. A plurality of first fine grinding teeth are obliquely provided on the bottom surface of the movable frame, and a plurality of second fine grinding teeth are obliquely provided on the lower surface of the top plate. The first fine grinding teeth and the second fine grinding teeth are staggered. A guide hopper is connected to one end of the movable frame.

[0010] The waste flows out of the crushing mechanism and is introduced into the first fine grinding teeth at the top. The fine grinding drive unit drives the movable frame to move up and down, and the movable frame pushes the waste to move toward the second fine grinding teeth, so that the waste size is crushed by the first and second fine grinding teeth to the second particle size, and then flows out along the guide hopper and accumulates in the collection hopper.

[0011] In which, the fine grinding table is provided with a accommodating cavity, the movable frame slides up and down in the accommodating cavity, and the bottom surface of the accommodating cavity is connected to a plurality of supporting springs, and the top end of the supporting spring abuts the bottom of the movable frame. When the supporting spring is in a normal state, the first fine grinding tooth extends into the second fine grinding tooth, and the gap between the first fine grinding tooth and the second fine grinding tooth corresponds to the second particle size. The top end of the guide hopper is located in the accommodating cavity, and the bottom end of the guide hopper passes through the fine grinding table.

[0012] Among them, the upper surface of the movable frame is also connected to a stacking platform, which is located between the first fine grinding teeth and the guide hopper. The two opposite sides of the stacking platform are respectively provided with a first inclined surface and a second inclined surface. After the waste material is finely ground to the second particle size, it separates from the first fine grinding teeth and the second fine grinding teeth and is accumulated on the first inclined surface. When the waste material accumulates to the required amount, it flows into the guide hopper along the second inclined surface.

[0013] Among them, the stirring mechanism includes a stirring shaft rotatably connected to the inside of the box body and a spiral blade connected to the stirring shaft. After the waste is introduced into the box body along the feed hopper, the stirring shaft rotates to drive the spiral blade to rotate, and the spiral blade drives the waste to disperse and flow toward the crushing mechanism.

[0014] The crushing mechanism includes a crushing drive unit mounted on the housing, and a first crushing roller and a second crushing roller rotatably connected to the inner side of the housing. The crushing drive unit is rotatably connected to the first crushing roller, and the first crushing roller is rotatably connected to the second crushing roller and the stirring shaft. The first crushing roller and the second crushing roller rotate in opposite directions.

[0015] After the waste is introduced into the box along the feed hopper, the crushing drive unit drives the first crushing roller and the stirring shaft to rotate synchronously, so that the stirring shaft drives the spiral blade to rotate, and the waste is dispersed to the first crushing roller and the second crushing roller; after the waste flows out of the stirring mechanism, its own size is crushed to the first particle size by the first crushing roller and the second crushing roller, so that the waste flows into the fine grinding mechanism.

[0016] Among them, the end of the first crushing roller away from the crushing drive unit passes through the box and is connected to the first gear, the end of the second crushing roller close to the first gear passes through the box and is connected to the second gear, the outer side of the box is rotatably connected to the first auxiliary gear and the second auxiliary gear, the two sides of the first auxiliary gear are respectively meshed with the first gear and the second auxiliary gear, and the other side of the second auxiliary gear is meshed with the second gear, the outer end of the first gear is connected to the first sprocket, the outer end of the stirring shaft passes through the box and is connected to the second sprocket, and a transmission chain is connected between the first sprocket and the second sprocket.

[0017] A guide platform is installed on the inner side of the box body, located between the top plate and the crushing mechanism. The guide platform is provided with a flow port running through the top and bottom. The top of the guide platform is flared and its bottom is connected to the flow port. The flow port is directly opposite to the first fine grinding teeth at the top. After the waste flows out along the crushing mechanism, it flows into the flow port along the top of the guide platform, so that the waste flows smoothly into the first fine grinding teeth at the top.

[0018] A draw-out opening is provided on one side of the box body, and the collecting hopper is slidably connected to the draw-out opening. The collecting hopper is located below the guide hopper, and the waste is discharged along the guide hopper and flows into the collecting hopper.

[0019] Beneficial effects of the utility model:

[0020] In actual application, when waste needs to be recycled, the waste is introduced along the feed hopper, and the stirring mechanism stirs the waste so that the waste is dispersed and flows to the crushing mechanism. The waste is evenly pushed to the crushing mechanism by the stirring mechanism, which facilitates uniform crushing of the waste and improves the crushing efficiency of the waste; the crushing mechanism crushes the waste to a first particle size and then flows to the fine grinding mechanism, and the fine grinding mechanism crushes the waste to a second particle size and then flows to the collecting hopper, so that the size of the waste is gradually crushed from the first particle size to the second particle size, smoothly realizing the secondary crushing of the waste, fully crushing the waste, and improving the mixing effect of the waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the aerated block waste recovery device.

[0022] Figure 2 This is a structural cross-sectional view of the aerated block waste recovery device.

[0023] Figure 3 It is a three-dimensional structural cross-sectional view of the fine grinding mechanism.

[0024] Figure 4 It is a structural cross-sectional view of the fine grinding mechanism.

[0025] Figure 5It is a schematic diagram of the three-dimensional structure of the fine grinding platform and the movable frame.

[0026] Figure 6 It is a three-dimensional diagram of the partial structure of the box body, stirring mechanism and crushing mechanism.

[0027] Figure 7 It is a schematic diagram of the connection structure of the box, the first gear, the second gear and the second sprocket.

[0028] Figure 8 It is a cross-sectional view of the installation structure of the box and the guide platform.

[0029] Figure 9 It is a schematic diagram of the three-dimensional structure of the box body and the collection bucket.

[0030] 1. Box body; 101. Feed hopper;

[0031] 11. First auxiliary gear; 12. Second auxiliary gear;

[0032] 13. Guide platform; 131. Flow port;

[0033] 14. Pull-out opening;

[0034] 2. Stirring mechanism; 200. Transmission chain;

[0035] 21. Stirring shaft; 22. Spiral blade; 23. Second sprocket;

[0036] 3. Crushing mechanism;

[0037] 31. Crush the drive unit;

[0038] 32. First crushing roller;

[0039] 321, first gear; 322, first sprocket;

[0040] 33. Second crushing roller; 331. Second gear;

[0041] 4. Fine grinding mechanism;

[0042] 41. Fine grinding table;

[0043] 411, accommodating chamber; 412, supporting spring;

[0044] 42. Move frame;

[0045] 421, first fine grinding tooth; 422, guide hopper;

[0046] 423, stacking platform; 4231, first inclined surface; 4232, second inclined surface;

[0047] 43. Top plate; 431. Second fine grinding tooth;

[0048] 44. Fine grinding drive unit;

[0049] 5. Collection bucket. DETAILED DESCRIPTION

[0050] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to examples and drawings. Specific implementation methods of the present invention will be described below. It should be noted that in the specific description of these implementation methods, for the sake of clarity and clarity, it is impossible for this specification to provide a detailed description of all features of the actual implementation methods.

[0051] refer to Figures 1 to 9 As shown, the utility model provides an aerated block waste recycling device, comprising a box body 1 with a feed hopper 101, a stirring mechanism 2, a crushing mechanism 3 and a fine grinding mechanism 4 connected in sequence from top to bottom along the box body 1, and a collecting hopper 5, wherein the crushing mechanism 3 is used to crush the waste size to a first particle size, and the fine grinding mechanism 4 is used to crush the waste size to a second particle size, wherein the first particle size is larger than the second particle size; Figure 2 As shown, in actual application, when waste needs to be recycled, the waste is introduced along the feed hopper 101, and the stirring mechanism 2 stirs the waste so that the waste is dispersed and flows to the crushing mechanism 3. The waste is evenly pushed to the crushing mechanism 3 by the stirring mechanism 2, so that the waste is evenly crushed and the crushing efficiency of the waste is improved; the crushing mechanism 3 crushes the waste to a first particle size and then flows to the fine grinding mechanism 4, and the fine grinding mechanism 4 crushes the waste to a second particle size and then flows to the collecting hopper 5, so that the size of the waste is gradually crushed from the first particle size to the second particle size, thereby smoothly realizing the secondary crushing of the waste, fully crushing the waste, and improving the mixing effect of the waste.

[0052] refer to Figure 3 As shown, in this embodiment, the fine grinding mechanism 4 includes a fine grinding platform 41 installed on the inner side of the box body 1, a moving frame 42 that is slidably connected to the fine grinding platform 41 up and down, a top plate 43 connected to the inner side of the box body 1, and a fine grinding drive unit 44 that drives the moving frame 42 to move up and down. The fine grinding drive unit 44 is drivingly connected to the moving frame 42. The bottom surface of the moving frame 42 is obliquely provided with a plurality of first fine grinding teeth 421, and the lower surface of the top plate 43 is obliquely provided with a plurality of second fine grinding teeth 431. The first fine grinding teeth 421 and the second fine grinding teeth 431 are staggered. One end of the moving frame 42 is connected to a guide hopper 422; refer to Figures 2 to 4As shown, in actual application, the waste flows out of the crushing mechanism 3 and is introduced into the first fine grinding teeth 421 at the top. The fine grinding drive unit 44 is a screw motor module, a cylinder or an electric cylinder. The fine grinding drive unit 44 drives the moving frame 42 to move up and down, and drives the moving frame 42 to move back and forth between the fine grinding platform 41 and the top plate 43; when the waste flows into the first fine grinding teeth 421 at the top, the moving frame 42 pushes the waste to move toward the second fine grinding teeth 431, so that the waste size is crushed to the second particle size by the first fine grinding teeth 421 and the second fine grinding teeth 431, and then flows out along the guide hopper 422 and accumulates in the collecting hopper 5, and the waste size is smoothly crushed to the second particle size. The waste is collected in a centralized manner through the collecting hopper 5, thereby improving the waste collection efficiency.

[0053] refer to Figure 4 As shown, in this embodiment, the fine grinding platform 41 is provided with a accommodating cavity 411, and the movable frame 42 slides up and down in the accommodating cavity 411. The bottom surface of the accommodating cavity 411 is connected to a plurality of supporting springs 412, and the top end of the supporting spring 412 abuts against the bottom of the movable frame 42; when the supporting spring 412 is in a normal state, the first fine grinding tooth 421 extends into the second fine grinding tooth 431, and the gap between the first fine grinding tooth 421 and the second fine grinding tooth 431 corresponds to the second particle size, the top end of the guide hopper 422 is located in the accommodating cavity 411, and the bottom end of the guide hopper 422 passes through the fine grinding platform 41, which has a compact structure and saves space; refer to Figure 3 、 4 As shown, before the waste material is crushed to the second particle size, the moving frame 42 is pushed by the support spring 412. The moving frame 42 can be subjected to the force from the fine grinding drive unit 44 and the support spring 412, ensuring that the moving frame 42 continuously applies pressure to the waste material and ensures the quality of the crushing; when the waste material needs to be crushed, the fine grinding drive unit 44 drives the moving frame 42 to move up and down, and the support spring 412 continuously supports the bottom of the moving frame 42 to ensure that the moving frame 42 moves stably.

[0054] refer to Figure 4 、 5As shown, in this embodiment, the upper surface of the movable frame 42 is further connected to a stacking platform 423, and the stacking platform 423 is located between the first fine grinding teeth 421 and the guide hopper 422. The two opposite sides of the stacking platform 423 are respectively provided with a first inclined surface 4231 and a second inclined surface 4232. After the waste size is finely ground to the second particle size, it separates from the first fine grinding teeth 421 and the second fine grinding teeth 431 and is accumulated on the first inclined surface 4231. When the waste is accumulated to the required amount, it flows into the guide hopper 422 along the second inclined surface 4232. In actual application, the fine grinding drive unit 44 drives the movable frame 42 to move, and the waste size is continuously ground to the second particle size and flows out of the guide hopper 422, and is collected by the pushing platform. The collected part has been crushed into waste of the second particle size. After the waste is sent out by the guide hopper 422, the waste is collected by the corresponding collecting device. When the collecting device is not located below the guide hopper 422, the moving speed of the movable frame 42 is reduced, and the flow speed of the waste between the first fine grinding teeth 421 and the second fine grinding teeth 431 is reduced. The pushing platform supports the waste of the second particle size through the first inclined surface 4231 to avoid the lack of a collecting device when the waste flows out along the guide hopper 422. When the corresponding collecting device is located below the guide hopper 422, the moving speed of the movable frame 42 is increased, and the waste supported by the first inclined surface 4231 is shaken into the guide hopper 422, which can cleverly collect the waste temporarily and improve the collection efficiency.

[0055] refer to Figure 6 As shown, in this embodiment, the stirring mechanism 2 includes a stirring shaft 21 rotatably connected to the inner side of the box body 1 and a spiral blade 22 connected to the stirring shaft 21. After the waste is introduced into the box body 1 along the feed hopper 101, the stirring shaft 21 rotates to drive the spiral blade 22 to rotate, and the spiral blade 22 drives the waste to disperse and flow toward the crushing mechanism 3, so that the waste can be dispersed and flow into the crushing mechanism 3, thereby improving the waste crushing efficiency.

[0056] refer to Figure 6 As shown, in this embodiment, the crushing mechanism 3 includes a crushing drive unit 31 installed on the box body 1, a first crushing roller 32 and a second crushing roller 33 rotatably connected to the inner side of the box body 1, the crushing drive unit 31 is drivably connected to the first crushing roller 32, the first crushing roller 32 is transmission-connected to the second crushing roller 33 and the stirring shaft 21, and the first crushing roller 32 and the second crushing roller 33 rotate in opposite directions; in actual application, the crushing drive unit 31 adopts a servo motor or a drive motor, when the waste is introduced into the box body 1 along the feed hopper 101, the crushing drive unit 31 drives the first crushing roller 32 and the stirring shaft 21 to rotate synchronously, so that the stirring shaft 21 drives the spiral blade 22 to rotate, and the waste is dispersed to the first crushing roller 32 and the second crushing roller 33; after the waste flows out of the stirring mechanism 2, its own size is crushed to the first particle size by the first crushing roller 32 and the second crushing roller 33, so that the waste flows into the fine grinding mechanism 4, which is convenient for batch conveying waste of the first particle size to the fine grinding mechanism 4.

[0057] refer to Figure 6 、 7 As shown, in this embodiment, the end of the first crushing roller 32 away from the crushing drive unit 31 passes through the box body 1 and is connected to the first gear 321. The end of the second crushing roller 33 close to the first gear 321 passes through the box body 1 and is connected to the second gear 331. The outer side of the box body 1 is rotatably connected to the first auxiliary gear 11 and the second auxiliary gear 12. The two sides of the first auxiliary gear 11 are respectively engaged with the first gear 321 and the second auxiliary gear 12, and the other side of the second auxiliary gear 12 is engaged with the second gear 331. The outer end of the first gear 321 is connected to the first sprocket 322. The outer end of the stirring shaft 21 passes through the box body 1 and is connected to the second sprocket 23. It is connected to a transmission chain 200; in actual application, the first crushing roller 32 rotates, and under the action of the first gear 321, the second gear 331, the first auxiliary wheel and the second auxiliary wheel, the first gear 321 and the second gear 331 rotate in opposite directions, so that the first crushing roller 32 and the second crushing roller 33 rotate in opposite directions, and the waste can be crushed smoothly; while the first gear 321 rotates, under the action of the first sprocket 322, the second sprocket 23 and the transmission chain 200, the first crushing roller 32 and the stirring shaft 21 rotate synchronously smoothly, and the crushing drive unit 31 can be used to drive the first crushing roller 32, the second crushing roller 33 and the stirring shaft 21 to rotate, thereby reducing the number of power units set, and synchronously realizing the stirring and crushing of the waste, with an ingenious structural design.

[0058] refer to Figure 8 As shown, in this embodiment, a guide platform 13 is installed on the inner side of the box body 1, which is located between the top plate 43 and the crushing mechanism 3. The guide platform 13 is provided with a flow port 131 running through the top and bottom. The top of the guide platform 13 is flared and its bottom end is connected to the flow port 131. The flow port 131 is opposite to the first fine grinding teeth 421 at the top. After the waste flows out along the crushing mechanism 3, it flows into the flow port 131 along the top of the guide platform 13, so that the waste flows smoothly into the first fine grinding teeth 421 at the top, smoothly guiding the waste to flow into the first fine grinding teeth 421, preventing the waste from being missed during transportation and improving the quality of waste processing.

[0059] refer to Figure 9 As shown, in this embodiment, a pull-out port 14 is provided on one side of the box body 1, and the collecting hopper 5 is slidably connected to the pull-out port 14. The collecting hopper 5 is located below the guide hopper 422, and the waste is discharged along the guide hopper 422 and flows into the collecting hopper 5; in actual application, when the waste in the collecting hopper 5 is collected to the required amount, the collecting hopper 5 is pulled out of the box body 1 to smoothly transfer the waste.

[0060] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention is disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of the above-disclosed technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technology of the present invention, which do not depart from the content of the technical solution of the present invention, are within the scope of the technical solution of the present invention.

Claims

1. A device for recycling waste aerated blocks, characterized in that: The invention comprises a box body (1) having a feed hopper (101), a stirring mechanism (2), a crushing mechanism (3) and a fine grinding mechanism (4) connected in sequence from top to bottom along the box body (1), and a collecting hopper (5), wherein the crushing mechanism (3) is used to crush the waste material to a first particle size, and the fine grinding mechanism (4) is used to crush the waste material to a second particle size, wherein the first particle size is larger than the second particle size; When recycling waste materials, the waste materials are introduced along the feed hopper (101), the stirring mechanism (2) stirs the waste materials so that the waste materials are dispersed and flow to the crushing mechanism (3), the crushing mechanism (3) crushes the waste materials to a first particle size and then flows to the fine grinding mechanism (4), and the fine grinding mechanism (4) crushes the waste materials to a second particle size and then flows to the collecting hopper (5).

2. The aerated block waste recovery device according to claim 1, characterized in that: The fine grinding mechanism (4) comprises a fine grinding platform (41) installed on the inner side of the box (1), a movable frame (42) connected to the fine grinding platform (41) for sliding up and down, a top plate (43) connected to the inner side of the box (1), and a fine grinding drive unit (44) for driving the movable frame (42) to move up and down, the fine grinding drive unit (44) is drivingly connected to the movable frame (42), a plurality of first fine grinding teeth (421) are obliquely provided on the bottom surface of the movable frame (42), a plurality of second fine grinding teeth (431) are obliquely provided on the lower surface of the top plate (43), the first fine grinding teeth (421) and the second fine grinding teeth (431) are staggered, and one end of the movable frame (42) is connected to a guide hopper (422); The waste flows out of the crushing mechanism (3) and is guided to the first fine grinding teeth (421) at the top. The fine grinding drive unit (44) drives the moving frame (42) to move up and down, and the moving frame (42) pushes the waste to move toward the second fine grinding teeth (431). After the waste is crushed to a second particle size by the first fine grinding teeth (421) and the second fine grinding teeth (431), it flows out along the guide hopper (422) and accumulates in the collecting hopper (5).

3. The aerated block waste recovery device according to claim 2, characterized in that: The fine grinding platform (41) is provided with a receiving chamber (411), the movable frame (42) slides up and down in the receiving chamber (411), the bottom surface of the receiving chamber (411) is connected to a plurality of supporting springs (412), the top end of the supporting spring (412) abuts against the bottom of the movable frame (42), and when the supporting spring (412) is in a normal state, the first fine grinding tooth (421) extends into the second fine grinding tooth (431), and the gap between the first fine grinding tooth (421) and the second fine grinding tooth (431) corresponds to the second particle size, the top end of the guide hopper (422) is located in the receiving chamber (411), and the bottom end of the guide hopper (422) passes through the fine grinding platform (41).

4. The aerated block waste recovery device according to claim 3, characterized in that: The upper surface of the movable frame (42) is further connected to a stacking platform (423), and the stacking platform (423) is located between the first fine grinding teeth (421) and the guide hopper (422). Two opposite sides of the stacking platform (423) are respectively provided with a first inclined surface (4231) and a second inclined surface (4232). After the waste material is finely ground to a second particle size, it is separated from the first fine grinding teeth (421) and the second fine grinding teeth (431) and stacked on the first inclined surface (4231). When the waste material is accumulated to a required amount, it flows into the guide hopper (422) along the second inclined surface (4232).

5. The aerated block waste recovery device according to claim 1, characterized in that: The stirring mechanism (2) comprises a stirring shaft (21) rotatably connected to the inner side of the box (1) and a spiral blade (22) connected to the stirring shaft (21). After the waste is introduced into the box (1) along the feed hopper (101), the stirring shaft (21) rotates to drive the spiral blade (22) to rotate, and the spiral blade (22) drives the waste to disperse and flow toward the crushing mechanism (3).

6. The aerated block waste recovery device according to claim 5, characterized in that: The crushing mechanism (3) comprises a crushing drive unit (31) mounted on the housing (1), a first crushing roller (32) and a second crushing roller (33) rotatably connected to the inner side of the housing (1), the crushing drive unit (31) being drivably connected to the first crushing roller (32), the first crushing roller (32) being in transmission connection with the second crushing roller (33) and the stirring shaft (21), and the first crushing roller (32) and the second crushing roller (33) rotating in opposite directions; After the waste is introduced into the box (1) along the feed hopper (101), the crushing drive unit (31) drives the first crushing roller (32) and the stirring shaft (21) to rotate synchronously, so that the stirring shaft (21) drives the spiral blade (22) to rotate, and the waste is dispersed and flows toward the first crushing roller (32) and the second crushing roller (33); after the waste flows out of the stirring mechanism (2), its own size is crushed to a first particle size by the first crushing roller (32) and the second crushing roller (33), so that the waste flows into the fine grinding mechanism (4).

7. The aerated block waste recovery device according to claim 6, characterized in that: The end of the first crushing roller (32) away from the crushing drive unit (31) passes through the box (1) and is connected to the first gear (321); the end of the second crushing roller (33) close to the first gear (321) passes through the box (1) and is connected to the second gear (331); the outer side of the box (1) is rotatably connected to the first auxiliary gear (11) and the second auxiliary gear (12); the two sides of the first auxiliary gear (11) are respectively meshed with the first gear (321) and the second auxiliary gear (12); the other side of the second auxiliary gear (12) is meshed with the second gear (331); the outer end of the first gear (321) is connected to the first sprocket (322); the outer end of the stirring shaft (21) passes through the box (1) and is connected to the second sprocket (23); a transmission chain (200) is connected between the first sprocket (322) and the second sprocket (23).

8. The aerated block waste recovery device according to claim 2, characterized in that: A guide platform (13) is installed on the inner side of the box body (1) and is located between the top plate (43) and the crushing mechanism (3). The guide platform (13) is provided with a flow port (131) extending from top to bottom. The top of the guide platform (13) is flared and its bottom is connected to the flow port (131). The flow port (131) is directly opposite to the first fine grinding teeth (421) at the top. After the waste flows out along the crushing mechanism (3), it flows into the flow port (131) along the top of the guide platform (13), so that the waste flows smoothly into the first fine grinding teeth (421) at the top.

9. The aerated block waste recovery device according to claim 2, characterized in that: A draw-out opening (14) is provided on one side of the box body (1), and the collecting hopper (5) is slidably connected to the draw-out opening (14). The collecting hopper (5) is located below the guide hopper (422), and waste is discharged along the guide hopper (422) and flows into the collecting hopper (5).

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