Solid waste recycling pulverizing device

Abstract

The application discloses a kind of solid waste recycling with crushing device, it is related to crushing device technical field, including jaw crusher main body, crushing cavity, moving jaw and static jaw, the moving jaw and static jaw are located in the crushing cavity inside jaw crusher main body, moving jaw and static jaw are arranged in pairs, the two inner walls of crushing cavity and the upper end of moving jaw are provided with dust cleaning assembly;The application avoids dust and dust overflow to the top end of crushing cavity work feed, reduces the influence of dust or dust on human body, the cooperation of air inlet block and air outlet block ensures that dust and dust in the inside of crushing cavity continue to blow into the bottom end of jaw crusher main body, bag is used to filter dust and dust in overflow gas, avoid airflow from the inside of crushing cavity overflow, first cover plate and second cover plate can automatically close feed tank, can isolate dust and dust in crushing cavity more thoroughly.

Description

Technical Field

[0001] This invention relates to the field of crushing equipment technology, specifically a crushing equipment for solid waste recycling. Background Technology

[0002] The crushing device uses a jaw crusher to process mineral solid waste. It is used for coarse crushing of hard mineral waste such as ore, slag, and tailings. The equipment drives the moving jaw to swing back and forth through an eccentric shaft. It crushes large mineral raw materials by squeezing and splitting, reducing the particle size of the material to meet the requirements of subsequent sorting, grinding and resource utilization. The equipment body is sturdy and wear-resistant. The high manganese steel jaw plate is impact-resistant and can withstand the impact of high-hardness minerals. The crushed material is screened and graded. Unqualified large pieces are returned for re-crushing, and the qualified pieces fall from the bottom of the jaw crusher. The equipment is stable in operation, easy to maintain and can continuously complete the treatment of mineral solid waste.

[0003] In the existing technology, there are certain drawbacks to the crushing device for solid waste recycling. When the jaw crusher crushes mineral waste, the bricks and concrete blocks are squeezed and broken instantly, generating a large amount of fine powder. There are gaps in the feed and discharge ports of the equipment, and there is no fully enclosed enclosure. Dust overflows with the airflow, and the impact of mineral materials raises dust, which affects the respiratory health of the operators. Summary of the Invention

[0004] The purpose of this invention is to provide a crushing device for solid waste recycling to solve the problems mentioned in the background art: when a jaw crusher crushes mineral waste, bricks and concrete blocks are squeezed and broken instantly, generating a large amount of fine powder. There are gaps in the feed and discharge ports of the equipment, and there is no fully enclosed enclosure, so dust overflows with the airflow.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A solid waste recycling crushing device includes a jaw crusher body, a crushing chamber, a moving jaw plate, and a stationary jaw plate. The moving jaw plate and the stationary jaw plate are located inside the crushing chamber of the jaw crusher body and are arranged in pairs. A dust removal component is provided between the two inner walls of the crushing chamber and the upper end of the moving jaw plate. The dust removal component includes a first connecting frame and a second connecting frame. The first connecting frame is installed at the upper end of the moving jaw plate, and the two ends of the second connecting frame are installed at the top of the two side walls of the crushing chamber. A telescopic airbag is provided between the first connecting frame and the second connecting frame. The telescopic airbag changes shape to slowly blow the crushed dust inside the crushing chamber. The telescopic airbag is compressed to blow the dust inside the crushing chamber to the bottom of the jaw crusher body, preventing dust from overflowing to the top of the crushing chamber and reducing the impact of dust on the human body.

[0007] As a preferred embodiment of the present invention, an air outlet block is provided at the bottom end of the first connecting frame and the bottom end of the second connecting frame, and an air inlet block is provided at the top end of the first connecting frame and the top end of the second connecting frame. The air inlet block is used to allow gas to flow into the interior of the telescopic airbag, and the air outlet block is used to allow airflow to flow from the interior of the telescopic airbag to the interior of the crushing chamber.

[0008] As a preferred embodiment of the present invention, the interior of the air inlet block and the air outlet block are both hollowed out. The air inlet block and the air outlet block are welded together. The bottom of the air inlet block and the air outlet block are both provided with iron plates, and the bottom of the air inlet block and the bottom of the air outlet block are both connected to the iron plates by rotating pins. Magnetic strips are provided on the bottom edge of the air inlet block and the bottom edge of the air outlet block, and the magnetic strips are magnetically attracted to the edge of the iron plates.

[0009] As a preferred embodiment of the present invention, the first connecting frame is fixed to the upper end of the moving jaw plate by screws, the second connecting frame is fixed to the two inner walls of the crushing chamber by screws, the telescopic airbag is shaped like an accordion airbag, the first connecting frame moves synchronously with the top of the moving jaw plate, and the moving jaw plate is used to stretch and compress the telescopic airbag.

[0010] As a preferred technical solution of the present invention, when the moving jaw plate drives the first connecting frame and the second connecting frame to approach each other, the iron plates of the two air inlet blocks are closed, and the iron plates of the two air outlet blocks are opened under the action of the airflow inside the telescopic airbag, and the airflow inside the air outlet blocks blows the crushed dust inside the crushing chamber.

[0011] In a preferred embodiment of the present invention, when the moving jaw plate moves the first connecting frame and the second connecting frame away from each other, the iron plates of both air outlet blocks are closed. Under the action of the airflow inside the telescopic airbag, the iron plates of both air inlet blocks are opened. The iron plates of the air outlet blocks are used to prevent dust from entering the telescopic airbag. The cooperation between the air inlet blocks and the air outlet blocks causes them to open or close. The telescopic airbag compresses the air outlet blocks to open while the air inlet blocks close. The telescopic airbag stretches the air inlet blocks to open while the air outlet blocks close, thereby ensuring that dust inside the crushing chamber is continuously blown into the bottom of the jaw crusher body.

[0012] As a preferred embodiment of the present invention, a dust-proof component is provided at the top of the crushing chamber. The dust-proof component includes a feed chute, which is installed at the top of the crushing chamber. The feed chute and the telescopic airbag are used to seal the top of the crushing chamber. A fixing frame is welded to the bottom of the feed chute, and a cloth bag is connected to the bottom of the fixing frame. The inside of the cloth bag is used to guide solid waste and drop it into the crushing chamber of the jaw crusher body. An elastic rope is provided around the bottom of the cloth bag, which is used to tighten the bottom of the cloth bag and to prevent dust from overflowing from the inside of the crushing chamber.

[0013] In a preferred embodiment of the present invention, the feeding trough, the fixing frame, and the cloth bag are interconnected. Solid waste falls into the interior of the crushing chamber along the feeding trough, the fixing frame, and the cloth bag. The cloth bag is used to filter dust from the airflow in the crushing chamber and then discharge it from the feeding trough. The bottom of the feeding trough is provided with a first cover plate and a second cover plate, both of which are rotatably connected to the bottom edge of the feeding trough.

[0014] As a preferred embodiment of the present invention, a first limiting plate is provided on the inner wall of the feeding trough at the contact point between the first cover plate and the second cover plate. The first limiting plate is used to limit the position of the first cover plate and the second cover plate. The first cover plate and the second cover plate are used to open or close the bottom end of the feeding trough. An arc ring is provided on both inner walls of the feeding trough at the first cover plate and the second cover plate. A telescopic spring is sleeved on the outer side of the arc ring at the end near the second limiting plate. The telescopic spring is used to push the first cover plate and the second cover plate along the direction of the arc ring.

[0015] As a preferred embodiment of the present invention, the arc ring is arc-shaped, and the rotation shafts of the first and second cover plates are both adapted to the center of the arc ring. The top of the arc ring is welded to the inner wall of the feed chute, and the bottom ends of the two arc rings are welded with second limiting plates. The second limiting plates are used to limit the telescopic spring. The cloth bag is used to filter the dust in the overflow gas to prevent the airflow from overflowing from the inside of the crushing chamber. The first and second cover plates can automatically close the feed chute, which can more thoroughly isolate the dust in the crushing chamber.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] Equipped with a dust removal component, the telescopic airbag compresses and blows the dust inside the crushing chamber to the bottom of the jaw crusher body, preventing dust from overflowing to the top of the crushing chamber and reducing the impact of dust on the human body.

[0018] It is equipped with an air inlet block and an air outlet block. The cooperation between the air inlet block and the air outlet block allows them to open or close. The telescopic air bladder compresses the air outlet block to open while the air inlet block closes. The telescopic air bladder stretches the air inlet block to open while the air outlet block closes, thereby ensuring that dust and particulate matter inside the crushing chamber are continuously blown into the bottom of the jaw crusher body.

[0019] Equipped with a dust-proof component, the filter bag filters out dust and dirt from the overflowing gas, preventing airflow from escaping from the inside of the crushing chamber. The first and second cover plates can automatically close the feed chute, further isolating the dust and dirt in the crushing chamber. Attached Figure Description

[0020] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a structural diagram of the main body of a pulverizing device for solid waste recycling according to the present invention;

[0022] Figure 2 This is a schematic diagram of the moving jaw plate and the stationary jaw plate of a pulverizing device for solid waste recycling according to the present invention;

[0023] Figure 3 This is a schematic diagram of the dust removal component of a pulverizing device for solid waste recycling according to the present invention;

[0024] Figure 4 This is a schematic diagram of the telescopic airbag of a pulverizing device for solid waste recycling according to the present invention;

[0025] Figure 5 This is a schematic diagram showing the attraction between the iron plate and the magnetic strip in a pulverizing device for solid waste recycling according to the present invention;

[0026] Figure 6 This is a schematic diagram of gas flow in a pulverizing device for solid waste recycling according to the present invention;

[0027] Figure 7 This is a schematic diagram of the dust overflow prevention component of a pulverizing device for solid waste recycling according to the present invention;

[0028] Figure 8 This is a schematic diagram of the arc ring and telescopic spring of a crushing device for solid waste recycling according to the present invention.

[0029] In the diagram: 1. Jaw crusher body; 2. Crushing chamber; 3. Moving jaw plate; 4. Stationary jaw plate; 5. Dust removal assembly; 6. Dust prevention assembly; 51. First connecting frame; 52. Telescopic air bag; 53. Second connecting frame; 54. Air inlet block; 55. Air outlet block; 56. Rotating pin; 57. Iron plate; 58. Magnetic strip; 61. Feed chute; 62. Fixing frame; 63. Filter bag; 64. First cover plate; 65. Second cover plate; 66. First limiting plate; 67. Arc ring; 68. Telescopic spring; 69. Second limiting plate; 610. Elastic rope. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0032] Example 1:

[0033] Please see Figure 1 - Figure 6 As shown, a crushing device for solid waste recycling includes a jaw crusher body 1, a crushing chamber 2, a movable jaw plate 3, and a stationary jaw plate 4. The movable jaw plate 3 and the stationary jaw plate 4 are located inside the crushing chamber 2 of the jaw crusher body 1. The movable jaw plate 3 and the stationary jaw plate 4 are arranged in pairs. The material enters the crushing chamber 2 from the top. When the movable jaw plate 3 moves closer to the stationary jaw plate 4, it generates huge pressure, crushing the mineral waste. The movable jaw plate 3 periodically moves closer to and away from the stationary jaw plate 4. The material is crushed by compression, bending, and splitting between the two jaw plates. When the particle size of the crushed material is smaller than the discharge port size, it is discharged from the discharge port under the action of gravity. Larger particles continue to be crushed. For every revolution of the eccentric shaft, the movable jaw plate 3 completes one forward and backward movement. The crushing process continues, achieving continuous crushing. A dust removal component 5 is provided between the two inner walls of the crushing chamber 2 and the upper end of the movable jaw plate 3. The dust removal component 5 includes a first connecting frame. The first connecting frame 51 is installed on the upper end of the moving jaw plate 3. The first connecting frame 51 moves closer to or further away from the stationary jaw plate 4 as the moving jaw plate 3 moves. The two ends of the second connecting frame 53 are installed on the top of the side walls of the crushing chamber 2. The second connecting frame 53 is always fixed to the top of the inner wall of the crushing chamber 2. A telescopic airbag 52 is provided between the first connecting frame 51 and the second connecting frame 53. When the first connecting frame 51 moves closer to the second connecting frame 53, the telescopic airbag 52 is compressed or extended, thereby expelling or drawing in the airflow inside the telescopic airbag 52. The shape change of the telescopic airbag 52 is used to slowly blow away the crushed dust inside the crushing chamber 2. The telescopic airbag 52 can blow the airflow inside the telescopic airbag 52 into the crushing chamber 2, so that the dust generated inside the crushing chamber 2 is discharged from the bottom, preventing the dust in the crushing chamber 2 from overflowing from the opening and reducing the impact of dust or dust on the human body.

[0034] Please see Figure 3 - Figure 6As shown, air outlet blocks 55 are provided at the bottom of the first connecting frame 51 and the bottom of the second connecting frame 53. The airflow in the telescopic airbag 52 is discharged from the air outlet blocks 55, thereby the airflow slowly blows the dust in the crushing chamber 2. Air inlet blocks 54 are provided at the top of the first connecting frame 51 and the top of the second connecting frame 53. When a negative pressure occurs inside the telescopic airbag 52, the airflow draws gas into the telescopic airbag 52 from the air inlet blocks 54. The air inlet blocks 54 are used to allow gas to flow into the interior of the telescopic airbag 52, and the air outlet blocks 55 are used to allow the airflow to flow from the interior of the telescopic airbag 52 into the interior of the crushing chamber 2.

[0035] Please see Figure 5 and Figure 6 As shown, the interior of the air inlet block 54 and the interior of the air outlet block 55 are both hollowed out. The air inlet block 54 and the air outlet block 55 are welded together. Airflow flows from the interior of the air inlet block 54 and the air outlet block 55. The bottom of the air inlet block 54 and the air outlet block 55 are both provided with iron plates 57, and the bottom of the air inlet block 54 and the bottom of the air outlet block 55 are connected to the iron plates 57 by rotating pins 56. Under the action of airflow, the iron plates 57 of the air inlet block 54 and the air outlet block 55 can be rotated. The bottom edge of the air inlet block 54 and the bottom edge of the air outlet block 55 are both provided with magnetic strips 58. The magnetic strips 58 are magnetically attracted to the edge of the iron plates 57. Under the action of airflow, the iron plates 57 can be rotated slightly, so that the magnetic strips 58 attract the rotating iron plates 57. The iron plates 57 can be opened or closed when needed.

[0036] Please see Figure 4 and Figure 6 As shown, the first connecting frame 51 is fixed to the upper end of the moving jaw plate 3 by screws, and the second connecting frame 53 is fixed to the two inner walls of the crushing chamber 2 by screws. The first connecting frame 51 and the second connecting frame 53 are fixed to the moving jaw plate 3 and the inner wall of the crushing chamber 2 respectively, so that the first connecting frame 51, the telescopic airbag 52 and the second connecting frame 53 can be confined above the crushing chamber 2. The relative position of the first connecting frame 51 and the second connecting frame 53 changes, so that the telescopic airbag 52 can be compressed and opened. The telescopic airbag 52 is shaped like an accordion airbag. The first connecting frame 51 moves synchronously with the top of the moving jaw plate 3. The moving jaw plate 3 is used to stretch and compress the telescopic airbag 52. The telescopic airbag 52 can control the airflow inside the telescopic airbag 52 and inside the moving jaw plate 3.

[0037] Please see Figure 4 - Figure 6As shown, when the moving jaw plate 3 drives the first connecting frame 51 and the second connecting frame 53 to approach each other, the iron plates 57 of the two air inlet blocks 54 are closed. Under the action of the airflow inside the telescopic airbag 52, the iron plates 57 of the two air outlet blocks 55 are opened. The airflow inside the air outlet blocks 55 blows the crushed dust inside the crushing chamber 2. The first connecting frame 51 and the second connecting frame 53 approach each other, causing the telescopic airbag 52 to be compressed. The airflow inside the telescopic airbag 52 blows the iron plate 57 at the air outlet block 55 to rotate. Thus, the rotation of the iron plate 57 causes the airflow inside the telescopic airbag 52 to blow the dust inside the crushing chamber 2, so that the dust can only be discharged from the bottom of the jaw crusher body 1. When the telescopic airbag 52 stops blowing air, the iron plate 57 and the magnetic strip 58 are attracted together.

[0038] Please see Figure 4 - Figure 6 As shown, when the moving jaw plate 3 drives the first connecting frame 51 and the second connecting frame 53 to move away from each other, the iron plates 57 of the two air outlet blocks 55 are closed. Under the action of the airflow inside the telescopic airbag 52, the iron plates 57 of the two air inlet blocks 54 are opened. The iron plates 57 of the air outlet blocks 55 are used to prevent dust from entering the telescopic airbag 52. When the first connecting frame 51 and the second connecting frame 53 move away from each other, the iron plates 57 of the air outlet blocks 55 are closed, and the iron plates 57 of the air inlet blocks 54 are opened, so that the airflow enters the interior of the telescopic airbag 52.

[0039] It should be noted that when mineral waste is placed into the crushing chamber 2 of the jaw crusher body 1, the moving jaw plate 3 operates, causing the solid waste in the crushing chamber 2 to be crushed into smaller particles. These smaller particles emerge from the bottom of the jaw crusher body 1. As the moving jaw plate 3 approaches the stationary jaw plate 4, the first connecting frame 51 and the second connecting frame 53 move closer together. The first connecting frame 51 and the second connecting frame 53 compress the telescopic airbag 52. The airflow inside the telescopic airbag 52 opens the iron plate 57 of the air outlet block 55 and closes the iron plate 57 of the air inlet block 54. The airflow enters the interior of the crushing chamber 2 from inside the telescopic airbag 52, thus reducing the waste produced during crushing. The dust is blown to the bottom of the jaw crusher body 1; when the moving jaw plate 3 and the stationary jaw plate 4 move away from each other, the first connecting frame 51 and the second connecting frame 53 move away from each other, causing the telescopic airbag 52 to be stretched, the iron plate 57 in the air outlet block 55 to close, and the iron plate 57 in the air inlet block 54 to open, so that the airflow outside the jaw crusher body 1 enters the interior of the telescopic airbag 52. Then the moving jaw plate 3 and the stationary jaw plate 4 move closer and further away from each other again, causing the telescopic airbag 52 to be repeatedly compressed and stretched, so that the dust in the crushing chamber 2 can be repeatedly blown to the bottom of the jaw crusher body 1, preventing the dust from being discharged from the jaw crusher body 1.

[0040] Please see Figure 2 , Figure 7 and Figure 8As shown, a dust-proof assembly 6 is provided at the top of the crushing chamber 2. The dust-proof assembly 6 includes a feed chute 61, which is installed at the top of the crushing chamber 2. The feed chute 61 and the telescopic airbag 52 are used to seal the top of the crushing chamber 2 to prevent dust from overflowing. A fixing frame 62 is welded to the bottom of the feed chute 61, and a cloth bag 63 is connected to the bottom of the fixing frame 62. The inside of the cloth bag 63 is used to guide solid waste and let it fall into the crushing chamber of the jaw crusher body 1. Inside the chamber 2, a tension rope 610 is provided around the bottom of the cloth bag 63. The tension rope 610 is used to tighten the bottom of the cloth bag 63 and to prevent dust from overflowing from the inside of the crushing chamber 2. When no solid waste falls, the bottom of the cloth bag 63 is initially tightened by the tension rope 610 to prevent dust from overflowing from the feed chute 61. When solid waste falls from the feed chute 61, the solid waste expands the cloth bag 63 under the action of gravity and falls into the inside of the crushing chamber 2.

[0041] Please see Figure 7 and Figure 8 As shown, the feed trough 61, the fixing frame 62, and the cloth bag 63 are interconnected. Solid waste falls into the crushing chamber 2 along the feed trough 61, the fixing frame 62, and the cloth bag 63. The cloth bag 63 is used to filter dust from the airflow in the crushing chamber 2 and then discharge it from the feed trough 61. Solid waste enters the feed trough 61 and falls into the fixing frame 62 and the cloth bag 63. The cloth bag 63 can be opened to allow heavy objects to fall into the crushing chamber 2. When the moving jaw plate 3 and the stationary jaw plate 4 crush solid waste, dust is isolated by the cloth bag 63. The bottom end of the feed trough 61 is provided with a first cover plate 64 and a second cover plate 65. The first cover plate 64 and the second cover plate 65 are rotatably connected to the bottom edge of the feed trough 61. When solid waste falls, it pushes the first cover plate 64 and the second cover plate 65, thereby opening the first cover plate 64 and the second cover plate 65. When no heavy objects fall, the first cover plate 64 and the second cover plate 65 are closed.

[0042] Please see Figure 7 and Figure 8As shown, a first limiting plate 66 is provided on the inner wall of the feed trough 61 at the contact point between the first cover plate 64 and the second cover plate 65. The first limiting plate 66 is used to limit the position of the first cover plate 64 and the second cover plate 65. When the first cover plate 64 and the second cover plate 65 rotate upward, the first limiting plate 66 restricts the first cover plate 64 and the second cover plate 65. The first cover plate 64 and the second cover plate 65 are used to open or close the bottom end of the feed trough 61. The two inner walls of the feed trough 61 at the contact point between the first cover plate 64 and the second cover plate 65 are... An arc ring 67 is provided at each of the 65 locations. A telescopic spring 68 is sleeved on the outer side of the arc ring 67 and at the end near the second limiting plate 69. The telescopic spring 68 is used to push the first cover plate 64 and the second cover plate 65 along the direction of the arc ring 67. Under the action of the telescopic spring 68, the first cover plate 64 and the second cover plate 65 rotate along their respective arc rings 67, so that the first cover plate 64 and the second cover plate 65 are in contact with the first limiting plate 66, preventing the first cover plate 64 and the second cover plate 65 from getting close to each other and from exceeding the limit.

[0043] Please see Figure 7 and Figure 8 As shown, the arc ring 67 is arc-shaped, and the rotation axes of the first cover plate 64 and the second cover plate 65 are both adapted to the center of the arc ring 67. Thus, the first cover plate 64 rotates around the arc ring 67, and the second cover plate 65 rotates around the arc ring 67. The top of the arc ring 67 is welded to the inner wall of the feed groove 61. The bottom ends of both arc rings 67 are welded with second limiting plates 69. The second limiting plates 69 are used to limit the telescopic spring 68. When the first cover plate 64 and the second cover plate 65 rotate downward, they will compress the telescopic spring 68. The telescopic spring 68 can push the first cover plate 64 and the second cover plate 65 to reset them.

[0044] It should be noted that solid waste enters the crushing chamber 2 through the feed chute 61. The feed chute 61 and the telescopic airbag 52 can prevent dust from overflowing. Solid waste falls into the crushing chamber 2 through the feed chute 61, the fixing frame 62, and the cloth bag 63. When a heavy object falls from the cloth bag 63, the cloth bag 63 is expanded to prevent dust from overflowing. When no heavy object or waste falls from the cloth bag 63, the cloth bag 63 collapses, and the tension rope 610 contracts to prevent dust from being discharged from the cloth bag 63. The first cover plate 64 and the second cover plate 65 automatically close under the action of the telescopic spring 68. When the waste falls, the first cover plate 64 and the second cover plate 65 open. The telescopic airbag 52, the first cover plate 64 and the second cover plate 65 seal the top of the crushing chamber 2 to prevent dust or powder from overflowing from the top of the crushing chamber 2, thus more thoroughly isolating the dust and powder in the crushing chamber 2.

[0045] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A crushing device for solid waste recycling, comprising a jaw crusher body (1), a crushing chamber (2), a moving jaw plate (3), and a stationary jaw plate (4), wherein the moving jaw plate (3) and the stationary jaw plate (4) are located inside the crushing chamber (2) of the jaw crusher body (1), and the moving jaw plate (3) and the stationary jaw plate (4) are arranged in pairs, characterized in that, A dust removal assembly (5) is provided between the two inner walls of the crushing chamber (2) and the upper end of the moving jaw plate (3). The dust removal assembly (5) includes a first connecting frame (51) and a second connecting frame (53). The first connecting frame (51) is installed at the upper end of the moving jaw plate (3), and the two ends of the second connecting frame (53) are installed at the top of the two side walls of the crushing chamber (2). A telescopic airbag (52) is provided between the first connecting frame (51) and the second connecting frame (53).

2. The pulverizing device for solid waste recycling according to claim 1, characterized in that, An air outlet block (55) is provided at the bottom of the first connecting frame (51) and the bottom of the second connecting frame (53). An air inlet block (54) is provided at the top of the first connecting frame (51) and the top of the second connecting frame (53). The air inlet block (54) is used to allow gas to flow into the interior of the telescopic airbag (52).

3. The pulverizing device for solid waste recycling according to claim 2, characterized in that, The interior of the air intake block (54) and the interior of the air outlet block (55) are both hollowed out. The air intake block (54) and the air outlet block (55) are both welded to the air intake block (54) and the air outlet block (55). The bottom of the air intake block (54) and the air outlet block (55) are both provided with iron plates (57). The bottom of the air intake block (54) and the bottom of the air outlet block (55) are both connected to the iron plates (57) by rotating pins (56). The bottom edge of the air intake block (54) and the bottom edge of the air outlet block (55) are both provided with magnetic strips (58). The magnetic strips (58) are magnetically attracted to the edge of the iron plates (57).

4. A pulverizing device for solid waste recycling according to claim 3, characterized in that, The first connecting frame (51) is fixed to the upper end of the moving jaw plate (3) by screws, and the second connecting frame (53) is fixed to the two inner walls of the crushing chamber (2) by screws. The telescopic airbag (52) is shaped like an accordion airbag. The first connecting frame (51) moves synchronously with the top of the moving jaw plate (3).

5. A pulverizing device for solid waste recycling according to claim 4, characterized in that, When the moving jaw plate (3) drives the first connecting frame (51) and the second connecting frame (53) to approach each other, the iron plates (57) of the two air inlet blocks (54) are closed. Under the action of the airflow inside the telescopic airbag (52), the iron plates (57) of the two air outlet blocks (55) are opened. The airflow inside the air outlet blocks (55) blows the crushed dust inside the crushing chamber (2).

6. A pulverizing device for solid waste recycling according to claim 4, characterized in that, When the moving jaw plate (3) drives the first connecting frame (51) and the second connecting frame (53) to move away from each other, the iron plates (57) of the two air outlet blocks (55) are closed, and the iron plates (57) of the two air inlet blocks (54) are opened under the action of the airflow inside the telescopic airbag (52).

7. A pulverizing device for solid waste recycling according to claim 5 or 6, characterized in that, The top of the crushing chamber (2) is provided with a dust prevention component (6). The dust prevention component (6) includes a feed chute (61). The feed chute (61) is installed at the top of the crushing chamber (2). A fixing frame (62) is welded to the bottom of the feed chute (61). A cloth bag (63) is connected to the bottom of the fixing frame (62). The inside of the cloth bag (63) is used to guide solid waste and drop it into the crushing chamber (2) of the jaw crusher body (1). An elastic rope (610) is provided around the bottom of the cloth bag (63).

8. A pulverizing device for solid waste recycling according to claim 7, characterized in that, The feed trough (61), the fixing frame (62) and the cloth bag (63) are interconnected. Solid waste falls into the interior of the crushing chamber (2) along the feed trough (61), the fixing frame (62) and the cloth bag (63). The cloth bag (63) is used to filter dust from the airflow in the crushing chamber (2) and then discharge it from the feed trough (61). The bottom end of the feed trough (61) is provided with a first cover plate (64) and a second cover plate (65). The first cover plate (64) and the second cover plate (65) are rotatably connected to the bottom edge of the feed trough (61).

9. A pulverizing device for solid waste recycling according to claim 8, characterized in that, A first limiting plate (66) is provided on the inner wall of the feed trough (61) at the contact point between the first cover plate (64) and the second cover plate (65). An arc ring (67) is provided on both inner walls of the feed trough (61) at the first cover plate (64) and the second cover plate (65). A telescopic spring (68) is sleeved on the outer side of the arc ring (67) at the end near the second limiting plate (69).

10. A pulverizing device for solid waste recycling according to claim 9, characterized in that, The arc ring (67) is arc-shaped, and the rotation axis of the first cover plate (64) and the rotation axis of the second cover plate (65) are both adapted to the center of the arc ring (67). The top of the arc ring (67) is welded to the inner wall of the feed groove (61), and the bottom of the two arc rings (67) are welded with a second limiting plate (69).

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