Coal-based solid waste recycling and crushing device and method for arid region

Abstract

The invention discloses a coal-based solid waste recycling and crushing device and method for an arid region, and belongs to the field of coal-based solid waste treatment. A recycling and smashing device for coal-based solid waste in an arid area comprises a smashing box and a screening box communicated with the smashing box, and further comprises a smashing assembly arranged in the smashing box and used for smashing the coal-based solid waste, a protection assembly is arranged on the inner wall of the smashing box, and when the coal-based solid waste is smashed, part of structures in the protection assembly can be driven to vibrate; the primary screening mechanism is arranged on the inner wall of the crushing box, a secondary screening mechanism is arranged on the inner wall of the screening box, and the secondary screening mechanism communicates with the primary screening mechanism through a pipeline; the problems that the coal-based solid waste crushing operation process is tedious, the crushing efficiency is low, and screening equipment is prone to being blocked can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of coal-based solid waste treatment, and in particular to a device and method for recycling and pulverizing coal-based solid waste in arid areas. Background Art

[0002] In arid areas, the treatment of coal-based solid waste faces special challenges and opportunities. It mainly includes coal gangue, fly ash and gasification ash. Coal-based solid waste has potential resource utilization value in arid areas. For example, coal gangue can be used for power generation and making building materials, and fly ash can be used for soil improvement and building materials. In order to facilitate subsequent reuse, it is usually necessary to crush the coal-based solid waste and screen the crushed coal-based solid waste for further processing.

[0003] At present, when coal-based solid waste is crushed, it is usually necessary to repeat the crushing and screening multiple times to make the size of the coal-based solid waste meet the requirements. The operation process is not only cumbersome, but also reduces the crushing efficiency of the coal-based solid waste. The screening equipment is also prone to blockage, affecting the screening efficiency of the coal-based solid waste. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art that the coal-based solid waste crushing operation process is complicated, the crushing efficiency is low, and the screening equipment is easily blocked, and a device and method for recycling coal-based solid waste in arid areas are proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A coal-based solid waste recycling and pulverizing device for arid areas comprises a pulverizing box and a screening box connected to the pulverizing box, and further comprises: a pulverizing assembly arranged in the pulverizing box, for pulverizing the coal-based solid waste, wherein a protective assembly is arranged on the inner wall of the pulverizing box, and a part of the structure in the protective assembly can be driven to vibrate when the coal-based solid waste is pulverized; a primary screening mechanism arranged on the inner wall of the pulverizing box, and a secondary screening mechanism is arranged on the inner wall of the screening box, and the secondary screening mechanism is connected to the primary screening mechanism through a pipeline, wherein when screening the coal-based solid waste, the primary screening mechanism and the secondary screening mechanism can be driven to vibrate, and the secondary screening mechanism can adjust the angle of the primary screening mechanism through the pipeline, and when the primary screening mechanism rotates to a predetermined angle, the primary screening mechanism is driven to rotate to an initial position through the pipeline, and at the same time, the resistance of the secondary screening mechanism during vibration is reduced.

[0007] In order to facilitate the crushing of coal-based solid waste, preferably, the crushing assembly includes two groups of crushing rollers rotatably connected to the inside of a crushing box, and a driving motor connected to the shaft end of one group of crushing rollers is fixedly connected to the outer wall of the crushing box. The crushing rollers extend to the outside of the crushing box away from the shaft end of the driving motor and are fixedly connected with mutually meshing linkage gears.

[0008] In order to prevent the damage of coal-based solid waste to the equipment during crushing, the protection component further includes a fixed lining symmetrically fixedly connected to the inside of the crushing box, a movable lining symmetrically rotatably connected to the side of the crushing box close to the crushing roller, a plurality of groups of compression members are fixedly connected to the side of the inner wall of the crushing box close to the movable lining, a first spring is fixedly connected between the compression member and the inner wall of the crushing box, wherein the fixed lining is located above the movable lining, the fixed lining is in contact with the crushing roller, the movable lining is arranged in an arc shape, and the compression member is in contact with the movable lining.

[0009] In order to improve the quality and efficiency of coal-based solid waste screening, further, the primary screening mechanism includes a first screening plate symmetrically rotatably connected in the crushing box, an installation cavity is opened at one end of the first screening plate close to each other, an adaptation plate is slidably connected inside the installation cavity, and a connecting cylinder is fixedly connected between the adaptation plate and the installation cavity, wherein the ends of the adaptation plates close to each other are rotatably connected, and a sealing strip is provided at the end of the adaptation plates close to each other.

[0010] In order to facilitate the re-throwing of oversized coal-based solid waste to the crushing site, it further includes a fixed annular part fixedly connected to the side of the crushing box close to the first screening plate, a movable annular part fixedly connected to the first screening plate with a sliding connection to the fixed annular part, a plurality of groups of second springs fixedly connected between the movable annular part and the fixed annular part, a pneumatic delay valve connected to each other is arranged on the fixed annular part, wherein the axes of the fixed annular part and the movable annular part are located on the same straight line with the axis of the first screening plate, and the connecting cylinder is connected to the pneumatic delay valve through a pipeline.

[0011] In order to avoid blockage during screening of coal-based solid waste and improve the efficiency of screening of coal-based solid waste, the secondary screening mechanism further includes a fixed frame fixedly connected to the screening box, a plurality of sealing cylinders are fixedly connected to the fixed frame, a support rod is slidably connected to the inside of the sealing cylinder, a third spring is fixedly connected between the support rod and the sealing cylinder, a second screening plate is provided at the end of the support rod away from the sealing cylinder, wherein a pin matching the sieve hole of the second screening plate is fixedly connected to the fixed frame, the second screening plate is recessed in the middle, and the second screening plate is fitted with the inner wall of the screening box, the air inlet end of the sealing cylinder and the exhaust end of the compression member are connected by a pipe, and the exhaust end of the sealing cylinder and the fixed annular member are connected by a pipe.

[0012] In order to ensure the stability of coal-based solid waste screening, it further includes an extension piece fixedly connected to the outer wall of the sealing cylinder, a slide groove is provided between the extension piece and the sealing cylinder, a retaining ring is slidably connected inside the slide groove, and the slide groove is connected to the connecting cylinder through a pipeline.

[0013] In order to reduce the dust generated during the crushing and screening of coal-based solid waste, further, a feeding piece is provided on the top of the crushing box, a discharge channel is provided at the bottom of the screening box, a dust reduction channel is provided on the side of the screening box close to the discharge channel, a dust prevention plate is provided on the side of the dust reduction channel close to the screening box, an exhaust fan is rotatably connected to the inside of the dust reduction channel, a driving wheel is fixedly connected to the shaft end of one group of the crushing rollers, a driven wheel matching the driving wheel is fixedly connected to the shaft end of the exhaust fan, a belt is sleeved between the driving wheel and the driven wheel, and a cleaning component is provided on the side of the screening box close to the dust reduction channel.

[0014] In order to facilitate the recovery and reuse of dust, the cleaning component further includes a rotating ring rotatably connected to the side of the screening box close to the dust reduction channel, the rotating ring is fixedly connected to a connecting ring, a plurality of drive plates are fixedly connected to the connecting ring, a cleaning plate is fixedly connected to the side of the connecting ring close to the dustproof plate, wherein a groove matching the rotating ring is opened on the inner wall of the screening box, the cleaning plate is fitted with the dustproof plate, and a guide plate is obliquely arranged above the inner wall of the screening box close to the dustproof plate.

[0015] A method for recycling and crushing coal-based solid waste in arid areas, comprising the following steps:

[0016] Step 1: crush the coal-based solid waste. During the crushing process, the coal-based solid waste falls naturally under the action of gravity;

[0017] Step 2: Perform secondary vibration screening on the crushed coal-based solid waste, and improve the vibration effect according to the impact between the coal-based solid waste and the inner wall of the equipment during crushing;

[0018] Step 3: During the screening process, the coal-based solid waste with larger size is intermittently thrown to the crushing area for secondary crushing;

[0019] Step 4: According to the vibration of primary screening and secondary screening, the coal-based solid waste with smaller size is crushed, and the secondary screening equipment is cleaned at the same time;

[0020] Step 5: During the screening process, the dust generated by crushing and screening is reduced, and the dust is cleaned and collected.

[0021] Compared with the prior art, the present invention provides a device and method for recycling coal-based solid waste in arid areas, which has the following beneficial effects:

[0022] 1. When the coal-based solid waste recycling and crushing device in arid areas crushes the coal-based solid waste through the crushing assembly, part of the coal-based solid waste will be thrown onto the protective assembly under the action of the crushing assembly. Combined with the gravity of the coal-based solid waste itself, the vibration effect of the primary screening mechanism and the secondary screening mechanism can be improved, thereby improving the screening efficiency of the coal-based solid waste. When the primary screening mechanism and the secondary screening mechanism vibrate, the coal-based solid waste on the secondary screening mechanism is impacted and crushed.

[0023] 2. The coal-based solid waste recycling and crushing device in arid areas can store energy in the primary screening mechanism through the vibration of the secondary screening mechanism, and release energy when the primary screening mechanism rotates to the threshold angle, so as to throw the coal-based solid waste on the primary screening mechanism back to the crushing place for secondary crushing until the size of the coal-based solid waste meets the screening requirement of the primary screening mechanism; at the same time, the resistance encountered by the secondary screening mechanism during vibration is reduced, thereby increasing the vibration amplitude of the secondary screening mechanism, so as to facilitate the cleaning of the secondary screening mechanism by the top needle to prevent it from being blocked, thereby further improving the screening efficiency of coal-based solid waste.

[0024] 3. The coal-based solid waste recycling and crushing device in arid areas, through the collision between the primary screening mechanism and the secondary screening mechanism, and the primary screening mechanism throws the oversized coal-based solid waste back to the crushing place, so that the equipment does not need to repeat the crushing and screening of the coal-based solid waste many times, which greatly simplifies the operation process of coal-based solid waste crushing, thereby improving the crushing efficiency of coal-based solid waste, and at the same time can also reduce the dust generated in the repeated crushing and screening process and the waste of coal-based solid waste.

[0025] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The present invention can overcome the problems of complicated coal-based solid waste crushing operation process, low crushing efficiency and easy clogging of screening equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of a coal-based solid waste recycling and crushing device in arid areas proposed by the present invention. Figure 1 ;

[0027] Figure 2 This is a schematic diagram of the structure of a coal-based solid waste recycling and crushing device in arid areas proposed by the present invention. Figure 2 ;

[0028] Figure 3 This is a schematic cross-sectional structure diagram of a pulverizing box and a screening box in a pulverizing device for recycling coal-based solid waste in arid areas proposed by the present invention;

[0029] Figure 4 This is a schematic structural diagram of a primary screening mechanism in a coal-based solid waste recycling and pulverizing device in arid areas proposed by the present invention;

[0030] Figure 5 This is a schematic structural diagram of a secondary screening mechanism in a coal-based solid waste recycling and pulverizing device in arid areas proposed by the present invention;

[0031] Figure 6 This is a schematic diagram of the structure of a cleaning component in a device for recycling and pulverizing coal-based solid waste in arid areas proposed by the present invention;

[0032] Figure 7 A coal-based solid waste recycling and crushing device in arid areas proposed by the present invention Figure 3 The structural diagram of part A in the figure;

[0033] Figure 8 A coal-based solid waste recycling and crushing device in arid areas proposed by the present invention Figure 3 The structural diagram of part B;

[0034] Fig. 9 A coal-based solid waste recycling and crushing device in arid areas proposed by the present invention Figure 3 Schematic diagram of the structure of part C.

[0035] In the figure: 1. crushing box; 2. feeding member; 3. crushing roller; 4. driving motor; 5. linkage gear; 6. screening box; 7. discharging channel; 8. fixed lining plate; 9. movable lining plate; 10. compression member; 11. first spring; 12. first screening plate; 13. mounting cavity; 14. adapting plate; 15. connecting cylinder; 16. sealing strip; 17. fixed annular member; 18. movable annular member; 19. second spring; 20. pneumatic extension Time valve; 21. fixing frame; 22. ejector pin; 23. sealing cylinder; 24. supporting rod; 25. third spring; 26. extension piece; 27. slide groove; 28. retaining ring; 29. ​​second screening plate; 30. exhaust fan; 31. driving wheel; 32. driven wheel; 33. belt; 34. dustproof plate; 35. cleaning assembly; 351. connecting ring; 352. rotating ring; 353. driving plate; 354. cleaning plate; 36. guide plate. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] Embodiment 1:

[0039] Reference Figure 1-Figure 9 , a coal-based solid waste recycling and crushing device for arid areas, comprising a crushing box 1 and a screening box 6 connected to the crushing box 1, the crushing box 1 and the screening box 6 are connected, the bottom of the screening box 6 is inclined, so that the coal-based solid waste can be discharged quickly, and also includes: a crushing assembly arranged in the crushing box 1, for crushing the coal-based solid waste, wherein a protective assembly is arranged on the inner wall of the crushing box 1, and part of the structure in the protective assembly can be driven to vibrate when the coal-based solid waste is crushed; a primary screening mechanism is arranged on the inner wall of the crushing box 1, and a secondary screening mechanism is arranged on the inner wall of the screening box 6, and the secondary screening mechanism is connected to the primary screening mechanism through a pipeline, wherein when screening the coal-based solid waste, the primary screening mechanism and the secondary screening mechanism can be driven to vibrate, and the secondary screening mechanism can adjust the angle of the primary screening mechanism through the pipeline, and when the primary screening mechanism rotates to a predetermined angle, the primary screening mechanism is driven to rotate to the initial position through the pipeline, and at the same time, the resistance of the secondary screening mechanism during vibration is reduced.

[0040] Reference Figure 1-Figure 3 The crushing assembly includes two groups of crushing rollers 3 rotatably connected to the inside of a crushing box 1. A driving motor 4 connected to the shaft end of one group of crushing rollers 3 is fixedly connected to the outer wall of the crushing box 1. The shaft end of the crushing roller 3 is away from the driving motor 4 and extends to the outside of the crushing box 1, and is fixedly connected with a linkage gear 5 that meshes with each other.

[0041] The crushing rollers 3 are conventional means in the prior art and are therefore not described in detail. The two sets of crushing rollers 3 can rotate relative to each other through the interlocking gears 5, so that when coal-based solid waste is added, the coal-based solid waste can be crushed simultaneously by the two sets of crushing rollers 3 to achieve a better crushing effect.

[0042] Reference Figure 3 and Figure 7 The protective component includes a fixed lining 8 symmetrically fixedly connected to the inside of the crushing box 1, a movable lining 9 is symmetrically rotatably connected to the side of the crushing box 1 close to the crushing roller 3, and multiple groups of compression members 10 are fixedly connected to the side of the inner wall of the crushing box 1 close to the movable lining 9. A first spring 11 is fixedly connected between the compression member 10 and the inner wall of the crushing box 1, wherein the fixed lining 8 is located above the movable lining 9, the fixed lining 8 is in contact with the crushing roller 3, the movable lining 9 is arranged in an arc shape, and the compression member 10 is in contact with the movable lining 9.

[0043] Among them, the fixed lining 8 can limit the added coal-based solid waste, so that the coal-based solid waste passes through the two sets of crushing rollers 3 and falls after being crushed. Since the crushing rollers 3 are in a high-speed rotating state, during the crushing process, part of the coal-based solid waste will be thrown outward along the bottom of the crushing rollers 3. At this time, the movable lining 9 can buffer the impact of the coal-based solid waste to prevent the coal-based solid waste from causing damage to the crushing box 1, and in this process, the movable lining 9 will vibrate under the action of the first spring 11 and the compression member 10.

[0044] Reference Figure 3 , Figure 4 and Figure 8 The primary screening mechanism includes a first screening plate 12 symmetrically rotatably connected in the crushing box 1, an installation cavity 13 is opened at one end of the first screening plate 12 close to each other, an adaption plate 14 is slidably connected inside the installation cavity 13, and a connecting cylinder 15 is fixedly connected between the adaption plate 14 and the installation cavity 13, wherein the ends of the adaption plates 14 close to each other are rotatably connected, and a sealing strip 16 is provided at the end of the adaption plates 14 close to each other.

[0045] Both the first screening plate 12 and the adaption plate 14 are provided with holes for intercepting coal-based solid waste that is too large in size. As the angle between the first screening plates 12 changes, the intercepted coal-based solid waste will be close to the adaption plate 14. On the one hand, it can prevent it from affecting the subsequent screening of coal-based solid waste, and on the other hand, it can provide a larger buffer space for the subsequent coal-based solid waste to be thrown upward. In addition, it needs to be explained that even if the intercepted coal-based solid waste cannot be completely thrown to the crushing roller 3 during the continuous crushing process, the falling coal-based solid waste can collide with the intercepted coal-based solid waste, and it can also be crushed for the second time until its size is large enough to pass through the first screening plate 12. In this process, the sealing strip 16 can prevent the coal-based solid waste from being stuck between the adaption plates 14 on both sides, thereby ensuring the stable rotation of the adaption plate 14.

[0046] Reference Figure 3 , Figure 4 and Figure 7 , also includes a fixed annular member 17 fixedly connected to one side of the crushing box 1 close to the first screening plate 12, a movable annular member 18 fixedly connected to the first screening plate 12 and slidably connected to the fixed annular member 17, a plurality of groups of second springs 19 fixedly connected between the movable annular member 18 and the fixed annular member 17, a pneumatic delay valve 20 connected to the fixed annular member 17 is arranged, wherein the axis of the fixed annular member 17 and the movable annular member 18 are located on the same straight line with the axis of the first screening plate 12, and the connecting cylinder 15 and the pneumatic delay valve 20 are connected through a pipeline.

[0047] The specific structure of the pneumatic delay valve 20 can refer to the technical solutions in the prior art. Those skilled in the art can know that when the pneumatic delay valve 20 is inhaled and reaches the threshold pressure, the pneumatic delay valve 20 is in an open state, and after the inhalation stops, the pneumatic delay valve 20 is closed with a delay. When the sealing cylinder 23 and the support rod 24 vibrate, they will intermittently deliver the compressed gas to between the fixed annular member 17 and the movable annular member 18. As the air pressure continues to increase, the movable annular member 18 will be driven to move inward in the fixed annular member 17. It extends outward, thereby adjusting the angle of the two groups of first screening plates 12. It needs to be explained that due to the compressibility of gas, the angle of the first screening plate 12 is still in a vibrating state during the change. After the pneumatic delay valve 20 is in the open state, under the action of the second spring 19, the movable annular member 18 is driven to shrink into the fixed annular member 17, and at the same time, the first screening plate 12 is driven to rotate upward, thereby throwing the intercepted coal-based solid waste to the crushing roller 3 for secondary crushing until the coal-based solid waste is sufficient to pass through the first screening plate 12.

[0048] Reference Figure 3 , Figure 5 and Fig. 9 The secondary screening mechanism includes a fixed frame 21 fixedly connected to the screening box 6, and multiple groups of sealing cylinders 23 are fixedly connected to the fixed frame 21. A support rod 24 is slidably connected inside the sealing cylinder 23, and a third spring 25 is fixedly connected between the support rod 24 and the sealing cylinder 23. A second screening plate 29 is arranged at one end of the support rod 24 away from the sealing cylinder 23, wherein a ejector pin 22 matching the sieve hole of the second screening plate 29 is fixedly connected to the fixed frame 21, and the second screening plate 29 is concave in the middle, and the second screening plate 29 fits the inner wall of the screening box 6, and the air inlet end of the sealing cylinder 23 is connected to the exhaust end of the compressor 10 through a pipeline, and the exhaust end of the sealing cylinder 23 is connected to the fixed annular member 17 through a pipeline, and also includes an extension member 26 fixedly connected to the outer wall of the sealing cylinder 23, and a slide groove 27 is provided between the extension member 26 and the sealing cylinder 23, and a retaining ring 28 is slidably connected inside the slide groove 27, and the slide groove 27 is connected to the connecting cylinder 15 through a pipeline.

[0049] Through the falling of the coal-based solid waste and the collision of the coal-based solid waste with the movable liner 9, the gas compressed by the compressor 10 enters the sealing cylinder 23, and when the support rod 24 moves into the sealing cylinder 23, the compressed gas will be transported to the fixed annular member 17, and the second screen plate 29 is located on the support rod 24 under the action of gravity, thereby driving the second screen plate 29 to vibrate, and at the same time, the coal-based solid waste with a size larger than the holes on the surface of the second screen plate 29 will move to the middle of the second screen plate 29, and because at the beginning, the distance between the first screen plate 12 and the second screen plate 29 is large under the action of the second spring 19, and as the middle position of the first screen plate 12 continues to move downward, the distance between the first screen plate 12 and the second screen plate 29 continues to shrink, and when the first screen plate 12 rotates to the threshold angle, the connecting cylinder 15 This drives the retaining ring 28 to be stored in the slide groove 27. At the same time, the resistance encountered by the support rod 24 as the second screen plate 29 vibrates downward is reduced, so that the vibration amplitude of the second screen plate 29 is increased. On the one hand, the ejector pin 22 can penetrate the second screen plate 29, thereby cleaning the holes on the surface of the second screen plate 29 to avoid blockage. On the other hand, the second screen plate 29 can be made extremely close to the first screen plate 12, so that the coal-based solid waste retained on the second screen plate 29 can be impacted and crushed through the adaptation plate 14 on the first screen plate 12. Since the coal-based solid waste retained on the second screen plate 29 is small in size, the crushing efficiency is high, which not only improves the crushing efficiency of the coal-based solid waste, but also avoids repeated crushing and screening of the coal-based solid waste, making the operation simpler and reducing the generation of dust.

[0050] Reference Figure 1 and Figure 3 A feeding piece 2 is provided on the top of the crushing box 1, a discharging channel 7 is provided on the bottom of the screening box 6, a dust reduction channel is provided on the side of the screening box 6 close to the discharging channel 7, a dust prevention plate 34 is provided on the side of the dust reduction channel close to the screening box 6, an exhaust fan 30 is rotatably connected inside the dust reduction channel, a driving wheel 31 is fixedly connected to the shaft end of one group of crushing rollers 3, a driven wheel 32 matching the driving wheel 31 is fixedly connected to the shaft end of the exhaust fan 30, a belt 33 is sleeved between the driving wheel 31 and the driven wheel 32, and a cleaning component 35 is provided on the side of the screening box 6 close to the dust reduction channel.

[0051] The feed member 2 and the discharge channel 7 are both conventional means in the prior art, so they are not elaborated here. When the coal-based solid waste is crushed, the exhaust fan 30 is rotated by the driving wheel 31, the driven wheel 32 and the belt 33, wherein the surface of the exhaust fan 30 is spiral, so that when it rotates, a negative pressure is generated on the side close to the screening box 6, thereby absorbing the dust generated by the coal-based solid waste during the crushing and screening process, thereby reducing the dust generated by the equipment during operation, so as to reduce the pollution to the surrounding environment and the harm to the health of the workers.

[0052] Reference Figure 3 and Figure 6 The cleaning component 35 includes a rotating ring 352 rotatably connected to the side of the screening box 6 close to the dust reduction channel, a connecting ring 351 is fixedly connected to the rotating ring 352, a plurality of driving plates 353 are fixedly connected to the connecting ring 351, a cleaning plate 354 is fixedly connected to the side of the connecting ring 351 close to the dustproof plate 34, wherein a groove matching the rotating ring 352 is opened on the inner wall of the screening box 6, the cleaning plate 354 is fitted with the dustproof plate 34, and a guide plate 36 is obliquely arranged above the inner wall of the screening box 6 close to the dustproof plate 34.

[0053] When the dust is adsorbed, part of the dust will be adsorbed on the dustproof plate 34, and the coal-based solid waste will fall at any time. Under the action of the guide plate 36, part of the coal-based solid waste will slide along the guide plate 36 along one side of the connecting ring 351, and knock the driving plate 353 on its side, thereby driving the connecting ring 351 to rotate in the direction of the coal-based solid waste sliding, and driving the cleaning plate 354 to rotate along the surface of the dustproof plate 34 to clean the dust adsorbed on the dustproof plate 34. When the equipment is reducing dust, it can not only reduce the harm of dust to the exhaust equipment, but also save the step of collecting dust (since the coal-based solid waste generally needs to be ground after being crushed, there is no need to separate the dust and the crushed coal-based solid waste), further simplifying the operation process of the equipment.

[0054] Embodiment 2:

[0055] A method for recycling and crushing coal-based solid waste in arid areas, comprising the following steps:

[0056] Step 1: crush the coal-based solid waste. During the crushing process, the coal-based solid waste falls naturally under the action of gravity;

[0057] Step 2: Perform secondary vibration screening on the crushed coal-based solid waste, and improve the vibration effect according to the impact between the coal-based solid waste and the inner wall of the equipment during crushing;

[0058] Step 3: During the screening process, the coal-based solid waste with larger size is intermittently thrown to the crushing area for secondary crushing;

[0059] Step 4: According to the vibration of primary screening and secondary screening, the coal-based solid waste with smaller size is crushed, and the secondary screening equipment is cleaned at the same time;

[0060] Step 5: During the screening process, the dust generated by crushing and screening is reduced, and the dust is cleaned and collected.

[0061] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A coal-based solid waste recycling and pulverizing device for arid areas, comprising a pulverizing box (1) and a screening box (6) connected to the pulverizing box (1), characterized in that: Also includes: The pulverizing assembly arranged in the pulverizing box (1) is used to pulverize the coal-based solid waste. Wherein, a protective component is arranged on the inner wall of the pulverizing box (1), and when the coal-based solid waste is pulverized, a part of the structure in the protective component can be driven to vibrate; A primary screening mechanism is arranged on the inner wall of the crushing box (1), a secondary screening mechanism is arranged on the inner wall of the screening box (6), and the secondary screening mechanism is connected to the primary screening mechanism via a pipeline. Among them, when screening coal-based solid waste, the primary screening mechanism and the secondary screening mechanism can be driven to vibrate. The secondary screening mechanism can adjust the angle of the primary screening mechanism through a pipeline. When the primary screening mechanism rotates to a predetermined angle, the primary screening mechanism is driven to rotate to the initial position through the pipeline, while reducing the resistance of the secondary screening mechanism during vibration.

2. The device for recycling and pulverizing coal-based solid waste in arid areas according to claim 1 is characterized in that: The pulverizing assembly comprises two groups of pulverizing rollers (3) rotatably connected to the inside of a pulverizing box (1); a driving motor (4) connected to the shaft end of one group of pulverizing rollers (3) is fixedly connected to the outer wall of the pulverizing box (1); the pulverizing rollers (3) extend to the outside of the pulverizing box (1) away from the shaft end of the driving motor (4) and are fixedly connected to mutually meshing linkage gears (5).

3. The device for recycling and pulverizing coal-based solid waste in arid areas according to claim 2 is characterized in that: The protection component comprises a fixed lining plate (8) symmetrically fixedly connected to the inside of the crushing box (1); a movable lining plate (9) is symmetrically rotatably connected to the side of the crushing box (1) close to the crushing roller (3); a plurality of groups of compression members (10) are fixedly connected to the side of the inner wall of the crushing box (1) close to the movable lining plate (9); a first spring (11) is fixedly connected between the compression member (10) and the inner wall of the crushing box (1); The fixed lining plate (8) is located above the movable lining plate (9), the fixed lining plate (8) is in contact with the crushing roller (3), the movable lining plate (9) is arranged in an arc shape, and the compression member (10) is in contact with the movable lining plate (9).

4. The device for recycling and pulverizing coal-based solid waste in arid areas according to claim 3 is characterized in that: The primary screening mechanism comprises a first screening plate (12) symmetrically connected to the crushing box (1), one end of the first screening plate (12) close to each other is provided with a mounting cavity (13), an adapting plate (14) is slidably connected inside the mounting cavity (13), and a connecting cylinder (15) is fixedly connected between the adapting plate (14) and the mounting cavity (13). The ends of the adaptable plates (14) that are close to each other are rotatably connected, and the ends of the adaptable plates (14) that are close to each other are provided with sealing strips (16).

5. The device for recycling and pulverizing coal-based solid waste in arid areas according to claim 4, characterized in that: The invention also comprises a fixed annular member (17) fixedly connected to one side of the crushing box (1) close to the first screening plate (12); a movable annular member (18) slidably connected to the fixed annular member (17) is fixedly connected to the first screening plate (12); a plurality of groups of second springs (19) are fixedly connected between the movable annular member (18) and the fixed annular member (17); a pneumatic time delay valve (20) is arranged on the fixed annular member (17) and is in communication with the fixed annular member; The axes of the fixed annular member (17) and the movable annular member (18) are located on the same straight line as the axis of the first screening plate (12), and the connecting cylinder (15) and the pneumatic delay valve (20) are connected via a pipeline.

6. The device for recycling and pulverizing coal-based solid waste in arid areas according to claim 5, characterized in that: The secondary screening mechanism comprises a fixed frame (21) fixedly connected to the screening box (6), a plurality of sealing cylinders (23) are fixedly connected to the fixed frame (21), a support rod (24) is slidably connected inside the sealing cylinder (23), a third spring (25) is fixedly connected between the support rod (24) and the sealing cylinder (23), and a second screening plate (29) is arranged at one end of the support rod (24) away from the sealing cylinder (23). In which, a pin (22) matching the sieve hole of the second sieve plate (29) is fixedly connected to the fixed frame (21), the second sieve plate (29) is concave in the middle, and the second sieve plate (29) fits the inner wall of the sieve box (6), the air inlet end of the sealing cylinder (23) and the exhaust end of the compression member (10) are connected through a pipeline, and the exhaust end of the sealing cylinder (23) and the fixed annular member (17) are connected through a pipeline.

7. The device for recycling and pulverizing coal-based solid waste in arid areas according to claim 6, characterized in that: It also includes an extension piece (26) fixedly connected to the outer wall of the sealing cylinder (23), a slide groove (27) is provided between the extension piece (26) and the sealing cylinder (23), a retaining ring (28) is slidably connected inside the slide groove (27), and the slide groove (27) is connected to the connecting cylinder (15) through a pipeline.

8. The device for recycling and pulverizing coal-based solid waste in arid areas according to claim 2, characterized in that: A feeding member (2) is arranged at the top of the crushing box (1), a discharging channel (7) is arranged at the bottom of the screening box (6), a dust reduction channel is arranged on the side of the screening box (6) close to the discharging channel (7), a dust prevention plate (34) is arranged on the side of the dust reduction channel close to the screening box (6), an exhaust fan (30) is rotatably connected inside the dust reduction channel, a driving wheel (31) is fixedly connected to the shaft end of one group of the crushing rollers (3), a driven wheel (32) matching the driving wheel (31) is fixedly connected to the shaft end of the exhaust fan (30), a belt (33) is sleeved between the driving wheel (31) and the driven wheel (32), and a cleaning component (35) is arranged on the side of the screening box (6) close to the dust reduction channel.

9. The device for recycling and pulverizing coal-based solid waste in arid areas according to claim 8, characterized in that: The cleaning assembly (35) comprises a rotating ring (352) rotatably connected to a side of the screening box (6) close to the dust removal channel, a connecting ring (351) is fixedly connected to the rotating ring (352), a plurality of driving plates (353) are fixedly connected to the connecting ring (351), and a cleaning plate (354) is fixedly connected to a side of the connecting ring (351) close to the dustproof plate (34). A groove matching the rotating ring (352) is provided on the inner wall of the screening box (6), the cleaning plate (354) is fitted with the dustproof plate (34), and a guide plate (36) is provided obliquely above the inner wall of the screening box (6) close to the dustproof plate (34).

10. A method for recycling and pulverizing coal-based solid waste in arid areas, using the device for recycling and pulverizing coal-based solid waste in arid areas according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: crush the coal-based solid waste. During the crushing process, the coal-based solid waste falls naturally under the action of gravity; Step 2: Perform secondary vibration screening on the crushed coal-based solid waste, and improve the vibration effect according to the impact between the coal-based solid waste and the inner wall of the equipment during crushing; Step 3: During the screening process, the coal-based solid waste with larger size is intermittently thrown to the crushing area for secondary crushing; Step 4: According to the vibration of primary screening and secondary screening, the coal-based solid waste with smaller size is crushed, and the secondary screening equipment is cleaned at the same time; Step 5: During the screening process, the dust generated by crushing and screening is reduced, and the dust is cleaned and collected.

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