Environment-friendly building waste crushing device

Abstract

The application relates to the field of waste treatment, in particular to an environment-friendly building waste crushing device, which comprises dust suction pipes inserted into a crushing box, wherein the two parallel dust suction pipes are located above two crushing rollers respectively; a plurality of dust suction boxes are arranged on each dust suction pipe, a plurality of dust suction holes are arranged on the end face of the dust suction box away from the dust suction pipe; and a belt pulley a is rotationally arranged on the dust suction pipe and located outside the crushing box, a friction mechanism is arranged between the belt pulley a and the dust suction pipe, and a power mechanism for driving the belt pulley a to rotate is arranged on a rack. The dust suction box is arranged to rotate, dust generated by crushing above the crushing box can be sucked away through the dust suction holes on the dust suction box, and the crushing efficiency can be improved by pressing the waste towards the crushing roller through the dust suction box. Moreover, the open feeding port is still retained, the building waste can be continuously fed into the crushing box, the device is convenient to use, and the crushing efficiency is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of construction waste treatment, and particularly relates to an environment-friendly construction waste crushing device. BACKGROUND

[0002] The waste of building materials usually includes masonry, concrete blocks, wood, plastic, metal, glass, paperboard, gypsum board, paint waste and the like. These construction wastes are mixed together for unified collection, then classified, and finally the classified resources are reused or treated.

[0003] A construction waste treatment device and process are disclosed in Chinese Patent Publication No. CN118142626A, which includes a casing, two crushing rollers are installed inside the casing through bearings, and each crushing roller is fixedly connected with a transmission gear at one end outside the casing, the transmission gears are in meshing transmission connection, a motor seat is fixedly connected to the left side outer wall of the casing, a driving motor is arranged at the upper end of the motor seat, the output shaft of the driving motor is fixedly connected with one of the transmission gears, an inlet is fixedly connected to the upper end of the casing, and a dust prevention mechanism is arranged inside the inlet. It has the characteristics of dust prevention, multi-stage screening and screening anti-blocking.

[0004] However, the above-mentioned disclosed scheme has the following disadvantages: the dust prevention is realized by a closed structure at the inlet, so that the construction waste can only be transported and crushed at one time, and then a part is transported and crushed by opening, the waste cannot be continuously transported, which not only causes inconvenience in use, but also reduces the efficiency of crushing treatment. SUMMARY

[0005] The present application aims to solve the problem of inconvenience in use and reduced efficiency of crushing treatment caused by the closed inlet in the background art, and proposes an environment-friendly construction waste crushing device.

[0006] In one aspect, the present application provides an environment-friendly construction waste crushing device, which includes a rack and a crushing box arranged on the rack, two crushing rollers are rotatably arranged in the crushing box, and a crushing power device is arranged on the crushing box to drive the crushing rollers to rotate; further comprising:

[0007] A dust suction pipe is inserted into the crushing box, and two parallel dust suction pipes are arranged above the two crushing rollers, one end of the dust suction pipe is closed, and the other end is connected with a dust suction device;

[0008] A plurality of dust suction boxes are arranged on each dust suction pipe, the dust suction boxes are arranged in the crushing box, the inner cavity of the dust suction box is in communication with the inner cavity of the dust suction pipe, and a plurality of dust suction holes are arranged on the end face of the dust suction box away from the dust suction pipe;

[0009] And a belt pulley a is rotatably arranged on the dust collection pipe outside the crushing box, a friction mechanism is arranged between the belt pulley a and the dust collection pipe, the friction mechanism provides friction between the belt pulley a and the dust collection pipe and enables the belt pulley a and the dust collection pipe to rotate asynchronously, and a power mechanism for driving the belt pulley a to rotate is arranged on the frame.

[0010] Preferably, downwardly-inclined feeding guide plates are arranged on the inner walls of the two sides of the crushing box, the length direction of the feeding guide plates is the same as the axis direction of the crushing roller, and the bottom of the feeding guide plate is located directly above the axis of the crushing roller.

[0011] Preferably, the friction mechanism comprises a plurality of friction members arranged on the side surface of the belt pulley a, a fixing plate arranged on the side surface of the belt pulley a, and a friction adjusting bolt matched with a threaded hole arranged on the fixing plate, the friction adjusting bolt changes the pressing force on the friction members by changing the position in the threaded hole, thereby changing the friction between the friction members and the dust collection pipe.

[0012] Preferably, the power mechanism comprises a motor arranged on the frame, a belt pulley b arranged on the output shaft of the motor, and a belt connecting the belt pulley a and the belt pulley b.

[0013] Preferably, two arc-shaped grooves are arranged on the opposite sides of the crushing box, the dust collection pipe passes through the arc-shaped grooves, the center of the arc-shaped groove and the axis of the output shaft of the motor do not coincide, two blocking rings are arranged on the dust collection pipe, the two blocking rings are in contact with the outer side surfaces of the opposite walls of the crushing box, elastic members are arranged on the inner walls of the upper and lower sides of the arc-shaped groove, and the two elastic members abut against the dust collection pipe from the two sides of the dust collection pipe; a circular ring b is arranged on the output shaft of the motor, a plurality of pushing plates are arranged on the circumferential surface of the circular ring b, a circular ring a is arranged on the dust collection pipe, a plurality of follower plates are arranged on the circumferential surface of the circular ring a, and the plurality of pushing plates and the plurality of follower plates are in contact alternately.

[0014] Preferably, a soft pipe is arranged at the end of the dust collection pipe, a hard pipe is arranged at the end of the soft pipe, a through hole is arranged on the frame, a communication pipe a is arranged on the inner wall of the through hole, and the hard pipe extends into the communication pipe a and is rotatably connected with the communication pipe a.

[0015] Preferably, a square pipe is arranged on the frame, the square pipe is located outside the periphery of the discharge port at the bottom of the crushing box, a plurality of dust collection grooves are arranged on the inner side surface of the square pipe, a plurality of communication pipes b are arranged on the square pipe, and the communication pipes b are connected with the dust collection equipment.

[0016] Preferably, when the two dust collection pipes rotate to make the two dust collection boxes horizontally opposite, the minimum distance between the two dust collection boxes is 10-30 mm.

[0017] On the other hand, the present application provides a building waste crushing method, comprising the following steps:

[0018] S1, start the crushing power device, two crushing rollers rotate, enter the crushing preparation, start the power mechanism, make the dust suction pipe rotate, at the same time, the dust suction box starts to rotate, and the external dust suction equipment is started;

[0019] S2, the construction waste is put into the crushing box, part of the construction waste directly falls on the crushing roller, and part of the construction waste falls on the dust suction box;

[0020] S3, the dust suction box rotates, continuously sucks the dust around, and presses the waste to the crushing roller in the rotating process, and the crushing efficiency is improved;

[0021] S4, the construction waste is crushed by the two crushing rollers, and falls from the bottom discharge port of the crushing box.

[0022] Compared with the prior art, the application has the following beneficial technical effects: by setting the rotating dust suction box, the dust generated during crushing above the crushing box can be sucked away through the dust suction holes thereon, further dust adsorption by the bottom dust suction groove can ensure a good working environment, and the waste can be pressed to the crushing roller by the dust suction box to improve the crushing efficiency. In addition, the dust suction pipe will vibrate slightly during rotation, which helps the waste on the dust suction box to fall onto the crushing roller faster. The above structure still retains the open feeding port, the construction waste can be continuously put into the crushing box, the use is convenient, and the crushing efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 and Figure 2 are perspective views of an embodiment of the application;

[0024] Figure 3 is a schematic view of the internal structure of the crushing box;

[0025] Figure 4 is a schematic view of part of Figure 3 ;

[0026] Figure 5 is a schematic view of the structure of the crushing box;

[0027] Figure 6 is an enlarged schematic view of A in Figure 3 ;

[0028] Figure 7 is an enlarged schematic view of B in Figure 4 .

[0029] Reference numerals: 1. Frame; 2. Crushing box; 3. Crushing roller; 4. Crushing power unit; 5. Feed guide plate; 6. Arc groove; 7. Elastic element; 8. Dust suction pipe; 9. Pulley a; 10. Pulley b; 11. Belt; 12. Motor; 13. Friction element; 14. Fixing plate; 15. Friction adjusting bolt; 16. Ring a; 17. Follower plate; 18. Ring b; 19. Push plate; 20. Retaining ring; 21. Dust suction box; 22. Dust suction hole; 23. Hose; 24. Rigid pipe; 25. Connecting pipe a; 26. Sealing ring; 27. Bearing; 28. Square tube; 29. ​​Connecting pipe b; 30. Dust suction trough. Detailed Implementation

[0030] Example 1, as Figures 1-4 As shown, the present invention proposes an environmentally friendly construction waste crushing device, including a frame 1 and a crushing box 2 mounted on the frame 1. Two crushing rollers 3 are rotatably mounted inside the crushing box 2. A crushing power device 4, which drives the crushing rollers 3 to rotate, is mounted on the crushing box 2. The crushing power device 4 is a common motor belt structure. Inclined feed guide plates 5 are mounted on the inner walls of both sides of the crushing box 2. The length direction of the feed guide plates 5 is the same as the axis of the crushing rollers 3, and the bottom of the feed guide plates 5 is directly above the axis of the crushing rollers 3. The two inclined feed guide plates 5 prevent construction waste from falling directly into the gap between the crushing rollers 3 and the inner wall of the crushing box 2, ensuring the crushing effect. In an optional embodiment, the inclination angle of the feed guide plates 5 is ten degrees, and the lowest point of the feed guide plates 5 is ten millimeters higher than the highest point of the crushing rollers 3. The device also includes:

[0031] The suction pipe 8 is inserted into the crushing box 2. Two suction pipes 8 are set in parallel and are located directly above the two crushing rollers 3 respectively. One end of the suction pipe 8 is closed and the other end is connected to the suction equipment.

[0032] Multiple dust collection boxes 21 are provided on each dust collection tube 8. The multiple dust collection boxes 21 are evenly distributed in a circumferential direction with the axis of the dust collection tube 8 as the center. In this embodiment, three dust collection boxes 21 are provided on each dust collection tube 8. The dust collection boxes 21 are located inside the crushing box 2. The inner cavity of the dust collection box 21 is connected to the inner cavity of the dust collection tube 8. Multiple dust collection holes 22 are provided on the end face of the dust collection box 21 away from the dust collection tube 8. When the two dust collection tubes 8 are rotated so that the two dust collection boxes 21 are horizontally opposite each other, a minimum distance is formed between the two dust collection boxes 21, which is 10-30mm.

[0033] and pulley a9, rotatingly arranged on the dust collection pipe 8 outside the crushing box 2, and a friction force mechanism arranged between the pulley a9 and the dust collection pipe 8, which provides friction force between the pulley a9 and the dust collection pipe 8 and enables different step rotation of the pulley a9 and the dust collection pipe 8, i.e. "slip" phenomenon, when the dust collection box 21 is pressed against large waste and cannot be quickly crushed, the dust collection box 21 cannot rotate at the set speed any more, at this time, the rotating speed of the pulley a9 is higher than that of the dust collection pipe 8, different step rotation is formed, and a power mechanism for driving the pulley a9 to rotate is arranged on the frame 1.

[0034] Further, a square tube 28 is arranged on the frame 1, and the square tube 28 is located at the outer periphery of the discharge port at the bottom of the crushing box 2, a plurality of dust collection grooves 30 are arranged on the inner side of the square tube 28, and a plurality of communication pipes b29 are arranged on the square tube 28 and connected with a dust collection device, so that dust at the discharge port at the bottom of the crushing box 2 is further sucked away by the dust collection device outside, so as to ensure a good working environment.

[0035] In the embodiment two, as shown in the drawings, the present application provides an environmental protection type building waste crushing device, compared with the embodiment one, the embodiment two introduces the structure of the friction force mechanism in detail. Figure 7

[0036] The friction force mechanism comprises a plurality of friction pieces 13 arranged on the side surface of the pulley a9, a fixed plate 14 arranged on the side surface of the pulley a9, and a friction force adjusting bolt 15 matched with the threaded hole arranged on the fixed plate 14, the friction force adjusting bolt 15 changes the extrusion force on the friction pieces 13 by changing the position in the threaded hole, so as to change the friction force between the friction pieces 13 and the dust collection pipe 8. In an optional embodiment, the friction pieces 13, the fixed plate 14 and the friction force adjusting bolt 15 are all arranged four, and are uniformly distributed along the circumferential direction of the dust collection pipe 8.

[0037] In the embodiment three, as shown in the drawings, the present application provides an environmental protection type building waste crushing device, compared with the embodiment two, the embodiment three introduces the power mechanism and the vibration structure of the dust collection pipe 8 in detail. Figure 4 Figure 5 Figure 7

[0038] The power mechanism comprises a motor 12 arranged on the frame 1, a pulley b10 arranged on the output shaft of the motor 12, and a belt 11 drivingly connecting the pulley a9 and the pulley b10.

[0039] ​​​​Two arc-shaped grooves 6 are arranged on opposite sides of the crushing box 2, and the dust suction pipe 8 passes through the arc-shaped grooves 6, the center of the arc-shaped grooves 6 and the output shaft axis of the motor 12 do not coincide, two stop rings 20 are arranged on the dust suction pipe 8, the two stop rings 20 are in contact with the outer side surfaces of the opposite walls of the crushing box 2 respectively, the stop ring 20 and the dust suction pipe 8 can be connected in a welding manner or a bolted manner for subsequent disassembly, the elastic members 7 are arranged on the inner walls of the upper and lower sides of the arc-shaped grooves 6, the two elastic members 7 abut against the dust suction pipe 8 from the two sides of the dust suction pipe 8, so that the dust suction pipe 8 can vibrate back and forth within a certain range along the arc-shaped grooves 6; a circular ring b 18 is arranged on the output shaft of the motor 12, a plurality of push plates 19 are arranged on the circumferential surface of the circular ring b 18, a circular ring a 16 is arranged on the dust suction pipe 8, a plurality of follow-up plates 17 are arranged on the circumferential surface of the circular ring a 16, the plurality of push plates 19 and the follow-up plates 17 are in alternating contact, the circular ring b 18 rotates, the follow-up plates 17 are pushed by the push plates 19, so that the dust suction pipe 8 vibrates in a small range in the arc-shaped grooves 6, thereby facilitating the waste on the dust suction box 21 to fall onto the two crushing rollers 3, and due to the elasticity of the belt 11, small amplitude vibration is allowed while the belt pulley a 9 is normally driven to rotate.

[0040] As shown in the embodiment four, Figure 3 and Figure 6 the present application proposes an environment-friendly building waste crushing device, compared with the embodiment three, the embodiment details the connection structure of the dust suction pipe 8 and the external dust suction equipment.

[0041] A soft pipe 23 is arranged at the end of the dust suction pipe 8, a hard pipe 24 is arranged at the end of the soft pipe 23, a through hole is arranged on the rack 1, a communication pipe a 25 is arranged on the inner wall of the through hole, the communication pipe a 25 is connected with the external dust suction equipment or dust suction system, the hard pipe 24 is inserted into the communication pipe a 25 and is rotationally connected with the communication pipe a 25; specifically, a blind hole is coaxially arranged on one side of the through hole, the communication pipe a 25 is arranged on the inner wall of the blind hole, a bearing 27 is arranged between the hard pipe 24 and the communication pipe a 25, and the bearing 27 is located in the blind hole, the dust suction pipe 8 can drive the hard pipe 24 to rotate through the soft pipe 23, the hard pipe 24 rotates relative to the communication pipe a 25 through the bearing 27, and does not affect the transmission of air flow, and the dust suction is completed; in addition, in order to prevent gas leakage, a sealing ring 26 is arranged on the inner wall of the through hole, and the sealing ring 26 is in contact with the outer peripheral wall of the hard pipe 24.

[0042] The embodiment five, the present application proposes a building waste crushing method, using the environment-friendly building waste crushing device of the embodiment four, specifically including the following steps:

[0043] S1, start the crushing power device 4, the two crushing rollers 3 rotate, enter the crushing preparation, start the power mechanism, make the dust suction pipe 8 rotate, at the same time, the dust suction box 21 starts to rotate, and the external dust suction equipment is started;

[0044] S2, the construction waste is put into the crushing box 2, and the construction waste is directly dropped on the crushing roller 3, and part is dropped on the dust absorption box 21;

[0045] S3, the dust absorption box 21 rotates, and dust around is continuously absorbed, and in the rotating process, the waste is pressed to the crushing roller 3, and the crushing efficiency is accelerated, when the waste cannot be quickly crushed, the dust absorption box 21 pressed on the waste will drive the dust absorption pipe 8 not to rotate or rotate very slowly, and the belt pulley a9 forms "slip", when the dust absorption box 21 is not blocked by the waste, the dust absorption pipe 8 and the belt pulley a9 start to rotate synchronously again;

[0046] S4, the construction waste is crushed by the two crushing rollers 3, and then falls from the bottom discharge port of the crushing box 2, and the dust around the discharge port is also absorbed by the plurality of dust absorption grooves 30 at the bottom, so that a good working environment is further ensured.

[0047] In summary, the dust absorption box 21 is arranged to rotate, dust generated by crushing above the crushing box 2 can be absorbed through the dust absorption hole 22, dust is further absorbed by the dust absorption groove 30 at the bottom, so that a good working environment is ensured, and the waste is pressed to the crushing roller 3 by the dust absorption box 21 to improve the crushing efficiency. In addition, the dust absorption pipe 8 will vibrate slightly during rotation, which helps the waste on the dust absorption box 21 to fall on the crushing roller 3 more quickly. The above structure still retains the open feeding port, the construction waste can be continuously put into the crushing box 2, and the use is convenient, and the crushing efficiency is high.

[0048] The embodiments of the application are described in detail above in combination with the drawings, but the application is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the application.

Claims

1. An environmentally friendly construction waste crushing device, comprising a frame (1) and a crushing box (2) mounted on the frame (1), wherein two crushing rollers (3) are rotatably mounted inside the crushing box (2), and a crushing power device (4) for driving the crushing rollers (3) to rotate is mounted on the crushing box (2); characterized in that, Also includes: The suction pipe (8) is inserted into the crushing box (2). Two suction pipes (8) are set in parallel and are located directly above the two crushing rollers (3). One end of the suction pipe (8) is closed and the other end is connected to the suction equipment. A dust collection box (21) is provided on each dust collection pipe (8). The dust collection box (21) is located inside the crushing box (2). The inner cavity of the dust collection box (21) is connected to the inner cavity of the dust collection pipe (8). A number of dust collection holes (22) are provided on the end face of the dust collection box (21) away from the dust collection pipe (8). And pulley a (9), which is rotatably mounted on the suction pipe (8) and located outside the crushing box (2). A friction mechanism is provided between pulley a (9) and suction pipe (8). The friction mechanism provides friction for pulley a (9) and suction pipe (8) and enables them to rotate asynchronously. A power mechanism that drives pulley a (9) to rotate is provided on the frame (1). The power mechanism includes a motor (12) mounted on the frame (1), a pulley b (10) mounted on the output shaft of the motor (12), and a belt (11) that drives and connects pulley a (9) and pulley b (10); two arc-shaped grooves (6) are provided on opposite sides of the crushing box (2), and the dust suction pipe (8) passes through the arc-shaped grooves (6). The center of the arc-shaped grooves (6) does not coincide with the axis of the output shaft of the motor (12). Two retaining rings (20) are provided on the dust suction pipe (8), and the two retaining rings (20) are respectively connected to the crushing box. The outer sides of the two opposite walls of the crushing box (2) are in contact. Elastic elements (7) are provided on the inner walls of the upper and lower sides of the arc groove (6). The two elastic elements (7) abut against the suction pipe (8) from both sides. A circular ring b (18) is provided on the output shaft of the motor (12). Multiple push plates (19) are provided on the circumference of the circular ring b (18). A circular ring a (16) is provided on the suction pipe (8). A follower plate (17) is provided on the circumference of the circular ring a (16). Multiple push plates (19) and follower plates (17) are in contact alternately.

2. The environmentally friendly construction waste crushing device according to claim 1, characterized in that, The inner walls on both sides of the crushing box (2) are provided with downward inclined feed guide plates (5). The length direction of the feed guide plates (5) is the same as the axis direction of the crushing roller (3), and the bottom of the feed guide plates (5) is located directly above the axis of the crushing roller (3).

3. The environmentally friendly construction waste crushing device according to claim 1, characterized in that, The friction mechanism includes multiple friction elements (13) disposed on the side of the pulley a (9), a fixing plate (14) disposed on the side of the pulley a (9), and a friction adjustment bolt (15) that engages with a threaded hole on the fixing plate (14). The friction adjustment bolt (15) changes the squeezing force on the friction elements (13) by changing its position in the threaded hole, thereby changing the friction between the friction elements (13) and the suction pipe (8).

4. The environmentally friendly construction waste crushing device according to claim 1, characterized in that, A flexible hose (23) is provided at the end of the suction pipe (8), and a rigid pipe (24) is provided at the end of the flexible hose (23). A through hole is provided on the frame (1), and a connecting pipe a (25) is provided on the inner wall of the through hole. The rigid pipe (24) extends into the connecting pipe a (25) and is rotatably connected to the connecting pipe a (25).

5. The environmentally friendly construction waste crushing device according to claim 1, characterized in that, It also includes a square tube (28) set on the frame (1), the square tube (28) is located on the outer periphery of the bottom discharge port of the crushing box (2), a number of dust collection grooves (30) are set on the inner side of the square tube (28), and a number of connecting pipes b (29) are set on the square tube (28), and the connecting pipes b (29) are connected to the dust collection equipment.

6. The environmentally friendly construction waste crushing device according to claim 1, characterized in that, When the two suction tubes (8) rotate so that the two suction boxes (21) are horizontally opposite each other, the two suction boxes (21) form a minimum distance of 10-30mm.

7. A method for crushing construction waste, using the environmentally friendly construction waste crushing device as described in claim 1, characterized in that, Includes the following steps: S1. Start the crushing power unit (4), the two crushing rollers (3) rotate, enter the crushing preparation, start the power mechanism to make the dust suction pipe (8) rotate, at the same time the dust suction box (21) starts to rotate, and turn on the external dust suction equipment; S2. The construction waste is put into the crushing box (2). Some of the construction waste falls directly onto the crushing roller (3), and some falls onto the dust collection box (21). S3. The dust collection box (21) rotates and continuously sucks away the surrounding dust. At the same time, it presses the waste against the crushing roller (3) during the rotation process to speed up the crushing efficiency. The dust collection pipe (8) will vibrate slightly during the rotation process, which helps the waste on the dust collection box (21) fall onto the crushing roller (3) faster. S4. After the construction waste is crushed by the rotation of two crushing rollers (3), it falls from the bottom discharge port of the crushing box (2).

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