Building waste recycling and grinding device with dust reduction effect

Abstract

The utility model discloses a building garbage recycling grinding device with dust falling effect relates to building garbage recycling technical field. The utility model discloses a work table, the lower surface fixed connection of work table has two mounting brackets, the upper surface of work table is set up with the extension of its lower surface's discharge slot, is provided with the grinding box on the work table, and the downside fixed sleeve of grinding box is in the discharge slot, and the discharge slot is communicated with the inside of grinding box, and the front side surface fixed connection of grinding box has the supporting block, and is provided with dust falling mechanism on the supporting block. The utility model discloses through the direction of two mounting blocks to be away from each other to rotate the appropriate angle, reciprocating rotation resets, and then this process drives two mounting blocks to rotate, and then can increase the range of spraying water mist of water mist spray head to the upside of grinding box, and then increase the range of dustproof of water mist spray head to grinding box, to improve the effect of dustproof, and then increase the practicality of building garbage recycling grinding device.

Description

Technical Field

[0001] This utility model belongs to the field of construction waste recycling technology, and specifically relates to a construction waste recycling grinding device with dust reduction effect. Background Technology

[0002] Construction waste refers to construction debris generated during engineering projects due to human or natural causes, including slag, excavated soil, silt, and other waste materials. These materials do not contribute to the construction itself, but are substances generated during the construction process and require appropriate treatment.

[0003] Existing patent: CN202323194088.9 A construction waste recycling device for building construction, by installing an upper spray assembly and a lower spray assembly on one side of the crushing box, can spray the upper and lower parts of the crushing box respectively, which can eliminate dust by spraying and avoid dust generation during construction waste processing, thus avoiding the impact on the ecological environment. This device is equipped with two spray assemblies, which can spray the inlet and outlet of the crushing box respectively, and the dust reduction effect is good.

[0004] However, in this comparative example, the atomizing nozzle is fixedly installed on the crushing box through the upper spray assembly and the lower spray assembly. This makes the spraying range of the atomizing nozzle in the air fixed and limited, resulting in a small area of ​​water mist sprayed by the atomizing nozzle in the air. Consequently, the dust suppression effect of the recycling device is weak, resulting in a large amount of dust that cannot be effectively suppressed. The dust is inhaled into the workers' bodies, affecting their health and thus reducing the practicality of the construction waste recycling device. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a construction waste recycling and grinding device with dust reduction effect to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a construction waste recycling and grinding device with dust reduction effect, comprising a workbench, two mounting brackets fixedly connected to the lower surface of the workbench, a discharge trough extending from the lower surface of the upper surface of the workbench, a grinding box mounted on the workbench, the lower side of the grinding box fixedly fitted inside the discharge trough, the discharge trough communicating with the interior of the grinding box, a support block fixedly connected to the front surface of the grinding box, a dust reduction mechanism mounted on the support block, the dust reduction mechanism being used to reduce dust during the construction waste recycling and grinding process, an adjustment mechanism mounted on the dust reduction mechanism for adjusting the angle of the dust reduction mechanism, and a grinding mechanism mounted on the grinding box for grinding construction waste to facilitate its recycling.

[0008] Furthermore, the dust suppression mechanism includes two rotating shafts, which are rotatably connected to the upper surface of the support block. A first inner groove and a second inner groove are formed inside each rotating shaft. The first inner groove is located above the second inner groove. The lower ends of both rotating shafts rotatably penetrate into the first and second inner grooves. The lower ends of both rotating shafts are rotatably connected to the bottom wall of the second inner groove. Gears are fixedly sleeved on the outer surface of each rotating shaft. Two gears are located in the first inner groove and are meshed together.

[0009] Furthermore, an L-shaped block is fixedly connected to the upper end of each of the two rotating shafts. The L-shaped block is in the shape of an "L". Each L-shaped block is provided with a mounting block. The mounting block is hollow inside. Multiple water mist nozzles that communicate with the interior of the mounting block are fixedly connected to the outer surface of the mounting block on the side close to the grinding box. A water pipe is fixedly connected to the outer surface of the mounting block on the side away from the water mist nozzles. The water pipe communicates with the interior of the mounting block.

[0010] Furthermore, a fixing block is fixedly sleeved on the outer surface of the rotating shaft located on the left side. A sliding groove extending from the lower surface of the fixing block is formed on the upper surface of the fixing block. A second motor is fixedly connected to the bottom wall of the second inner groove. A support rod is fixedly connected to the rotation output shaft of the second motor. A connecting rod is fixedly connected to the upper end of the support rod. A connecting column is fixedly connected to the end of the connecting rod away from the support rod. The connecting column is a cylinder. The upper end of the connecting column extends into the sliding groove and the connecting column is slidably connected to the sliding groove.

[0011] Furthermore, the adjustment mechanism includes two positioning rings, which are fixedly connected to the two mounting blocks respectively. Each of the horizontal blocks of the two L-shaped blocks has a rotating groove extending from its lower surface on its upper surface. The rotating groove extends beyond the rear surface of the horizontal block of the L-shaped block. A rotating support column is located between the inner walls of the left and right sides of the rotating groove. The lower end of the mounting block is fixedly connected to the outer surface of the rotating groove. Each of the horizontal blocks of the L-shaped block has a connecting groove extending from its lower surface on its upper surface. The connecting groove communicates with the corresponding rotating groove. The positioning ring is slidably connected to the connecting groove.

[0012] Furthermore, the support hole communicates with the corresponding connecting groove, and a fixing rod is slidably sleeved in each support hole. A positioning plate is fixedly connected to the end of the fixing rod away from the L-shaped block. A positioning spring is fixedly connected between the positioning plate and the corresponding L-shaped block. The positioning spring is slidably sleeved on the outer surface of the fixing rod. Multiple positioning grooves are formed on the outer surface of the positioning ring. The positioning grooves are arranged in a central array with the positioning ring as the center. The end of the fixing rod away from the positioning plate extends into the positioning groove, and the fixing rod is slidably connected to the corresponding positioning groove.

[0013] Furthermore, the grinding mechanism includes two first motors, which are respectively disposed on the front and rear sides of the grinding box. The first motors are fixedly connected to the upper surface of the worktable. Two mounting rods are rotatably connected between the inner walls of the front and rear sides of the grinding box. Grinding rollers are fixedly sleeved on the outer surface of each mounting rod. The two grinding rollers are adapted to each other. The two mounting rods rotatably extend through the outer surfaces of the front and rear sides of the grinding box. The two first motors are fixedly connected to one end of each mounting rod extending through the grinding box. A trolley is disposed between the two mounting frames. The upper surface of the trolley is slidably connected to the lower surface of the worktable. The trolley is slidably connected between the two mounting frames and is adapted to the discharge chute.

[0014] This utility model has the following beneficial effects:

[0015] This invention utilizes two mounting blocks that are rotated at a suitable angle in opposite directions and then reciprocated to reset. This process drives the two mounting blocks to rotate, thereby increasing the spray range of the water mist nozzles on the upper side of the grinding box and thus increasing the dustproof range of the grinding box, thereby improving the dustproof effect and enhancing the practicality of the construction waste recycling and grinding device.

[0016] This invention uses a fixed rod that slides into the positioning groove to fix the positioning ring, preventing it from rotating. This simultaneously fixes the water mist nozzle, mounting block, and water pipe. By pulling out the positioning plate and rotating the mounting block, the height and angle of the water mist sprayed by the water mist nozzle can be adjusted, thereby increasing the flexibility and practicality of the dust suppression mechanism and the construction waste recycling and grinding device.

[0017] This invention uses a fixed rod that slides into the positioning groove to fix the positioning ring, preventing it from rotating. This simultaneously fixes the water mist nozzle, mounting block, and water pipe. By pulling out the positioning plate and rotating the mounting block, the height and angle of the water mist sprayed by the water mist nozzle can be adjusted, thereby increasing the flexibility and practicality of the dust suppression mechanism and the construction waste recycling and grinding device.

[0018] This invention uses a water mist nozzle to spray water mist, which can reduce dust generated during the feeding process of the grinding box, thereby protecting the on-site environment of the construction waste recycling and grinding process, avoiding the raising of large amounts of dust, and preventing dust from being inhaled by workers and affecting their health.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 For the present utility model Figure 1 Enlarged view of point A;

[0023] Figure 3 This is a schematic diagram of the positioning ring structure of this utility model;

[0024] Figure 4 This is a vertical cross-sectional view of the support block of this utility model;

[0025] Figure 5 This is a schematic diagram of the gear structure of this utility model;

[0026] Figure 6 This is a schematic diagram of the internal structure of the grinding box of this utility model.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Workbench; 2. Mounting frame; 3. Discharge chute; 4. Grinding box; 5. First motor; 6. Support block; 7. Rotating shaft; 8. L-shaped block; 9. Rotating groove; 10. Positioning groove; 11. Positioning ring; 12. Mounting block; 13. Water pipe; 14. Water mist nozzle; 15. Positioning plate; 16. Positioning spring; 17. Connecting groove; 18. Fixing rod; 19. First inner groove; 20. Gear; 21. Second inner groove; 22. Sliding groove; 23. Connecting column; 24. Second motor; 25. Support rod; 26. Connecting rod; 27. Fixing block; 28. Grinding roller; 29. ​​Trolley. Detailed Implementation

[0029] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0030] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0031] Please see Figures 1-6 As shown, this utility model is a construction waste recycling and grinding device with dust reduction effect, including a workbench 1. Two mounting brackets 2 are fixedly connected to the lower surface of the workbench 1. A discharge trough 3 extending from the lower surface of the upper surface of the workbench 1 is provided. A grinding box 4 is provided on the workbench 1. The lower side of the grinding box 4 is fixedly fitted inside the discharge trough 3. The discharge trough 3 communicates with the interior of the grinding box 4. A support block 6 is fixedly connected to the front surface of the grinding box 4. A dust reduction mechanism is provided on the support block 6. The dust reduction mechanism is used to reduce dust during the construction waste recycling and grinding process. An adjustment mechanism is provided on the dust reduction mechanism to adjust the angle of the dust reduction mechanism. A grinding mechanism is provided on the grinding box 4 to grind the construction waste for recycling.

[0032] When in use, pour the construction waste into 4, then start the grinding mechanism. The grinding mechanism can grind the construction waste in 4 into powder. The ground construction waste falls into 29 under the action of gravity. Then, start the dust suppression mechanism. The dust suppression mechanism sprays water into water mist on the upper and left and right sides of 4 to achieve the dust suppression effect. The angle of the dust suppression mechanism can be adjusted by the adjustment mechanism to increase the flexibility of the dust suppression mechanism.

[0033] In one embodiment, the dust suppression mechanism includes two rotating shafts 7 rotatably connected to the upper surface of the support block 6. Each rotating shaft 7 has a first inner groove 19 and a second inner groove 21. The first inner groove 19 is located above the second inner groove 21. The lower ends of both rotating shafts 7 rotatably penetrate into the first inner groove 19 and the second inner groove 21. The lower ends of both rotating shafts 7 are rotatably connected to the bottom wall of the second inner groove 21. Gears 20 are fixedly fitted onto the outer surface of each rotating shaft 7. Two gears 20 are located within the first inner groove 19 and are meshed together.

[0034] Both of the two rotating shafts 7 are fixedly connected to the upper ends of L-shaped blocks 8. The L-shaped blocks 8 are in the shape of an "L". Each L-shaped block 8 is provided with a mounting block 12. The mounting block 12 is hollow inside. Multiple water mist nozzles 14 that communicate with the interior of the mounting block 12 are fixedly connected to the outer surface of the mounting block 12 on the side close to the grinding box 4. Water pipes 13 are fixedly connected to the outer surface of the mounting block 12 on the side away from the water mist nozzles 14. The water pipes 13 communicate with the interior of the mounting block 12.

[0035] A fixing block 27 is fixedly sleeved on the outer surface of the rotating shaft 7 located on the left. A sliding groove 22 extending from the lower surface of the fixing block 27 is formed on the upper surface of the fixing block 27. A second motor 24 is fixedly connected to the bottom wall of the second inner groove 21. A support rod 25 is fixedly connected to the rotation output shaft of the second motor 24. A connecting rod 26 is fixedly connected to the upper end of the support rod 25. A connecting column 23 is fixedly connected to the end of the connecting rod 26 away from the support rod 25. The connecting column 23 is a cylinder. The upper end of the connecting column 23 extends into the sliding groove 22 and the connecting column 23 is slidably connected to the sliding groove 22.

[0036] In addition, in specific applications, when in use, a hose is fixedly connected to the end of the water pipe 13 away from the mounting block 12, and the end of the hose away from the water pipe 13 is connected to an external water source (such as a faucet). Water enters the mounting block 12 through the water pipe 13 and is then sprayed out as water mist through the water mist nozzle 14. This can reduce the dust generated during the feeding process of the grinding box 4, thereby protecting the on-site environment of the construction waste recycling and grinding process, avoiding the raising of a large amount of dust, and thus preventing the dust from being inhaled into the workers' bodies and affecting their health.

[0037] The second motor 24 is started, which drives the support rod 25 to rotate. The rotation of the support rod 25 synchronously drives the connecting rod 26 and the connecting column 23 to rotate around the support rod 25. During the rotation of the connecting column 23, it slides in the sliding groove 22. The rotation of the connecting column 23 drives the fixed block 27 to reciprocate in a fan-shaped motion around the left rotating shaft 7. During this process, the left rotating shaft 7 is also reciprocated in a fan-shaped motion. Under the action of the two gears 20, the two rotating shafts 7 are driven to rotate in opposite directions. This causes the two mounting blocks 12 to rotate in opposite directions at a suitable angle and then reciprocate to reset. This process drives the two mounting blocks 12 to rotate, which increases the range of water mist spraying from the water mist nozzle 14 to the upper side of the grinding box 4, thereby increasing the dustproof range of the water mist nozzle 14 to the grinding box 4, improving the dustproof effect, and increasing the practicality of the construction waste recycling grinding device.

[0038] In one embodiment, the upper adjustment mechanism includes two positioning rings 11, which are fixedly connected to two mounting blocks 12 respectively. The upper surfaces of the horizontal blocks of the two L-shaped blocks 8 are each provided with a rotating groove 9 extending beyond their lower surfaces. The rotating groove 9 extends beyond the rear surface of the horizontal block of the L-shaped block 8. Rotary support columns are located between the inner walls of the left and right sides of the rotating groove 9. The lower end of the mounting block 12 is fixedly connected to the outer surface of the rotating groove 9. The upper surfaces of the horizontal blocks of the L-shaped blocks 8 are each provided with a connecting groove 17 extending beyond their lower surfaces. The connecting groove 17 communicates with the corresponding rotating groove 9. The positioning rings 11 are slidably connected to the connecting grooves 17.

[0039] Two support holes are respectively opened on the opposite outer surfaces of the two L-shaped blocks 8. The support holes communicate with the corresponding connecting grooves 17. A fixing rod 18 is slidably sleeved in each support hole. A positioning plate 15 is fixedly connected to the end of the fixing rod 18 away from the L-shaped block 8. A positioning spring 16 is fixedly connected between the positioning plate 15 and the corresponding L-shaped block 8. The positioning spring 16 is slidably sleeved on the outer surface of the fixing rod 18. A plurality of positioning grooves 10 are opened on the outer surface of the positioning ring 11. The positioning grooves 10 are arranged in a central array with the positioning ring 11 as the center. The end of the fixing rod 18 away from the positioning plate 15 extends into the positioning groove 10. The fixing rod 18 is slidably connected to the corresponding positioning groove 10.

[0040] Furthermore, in practical applications, in the initial state, the mounting block 12 is in a vertical position. At this time, the mounting block 12 will not affect the pouring of building materials into the grinding box 4. Pulling out the positioning plate 15 causes the positioning plate 15 to move together with the fixing rod 18 away from the L-shaped block 8. During this process, the positioning spring 16 is stretched, causing the positioning spring 16 to deform. In this process, the fixing rod 18 also slides out of the connecting groove 17, and then slides out of the corresponding positioning groove 10. At this time, the fixing rod 18 loses its restriction on the positioning ring 11, allowing the positioning ring 11 to rotate around the support column. During this process, the mounting block 12, water pipe 13 and water are simultaneously driven. The mist nozzle 14 rotates. When the mounting block 12 rotates to a suitable angle towards the grinding box 4, the pull on the positioning plate 15 is released. Under the release force of the positioning spring 16, the fixing rod 18 slides into the appropriate positioning groove 10. The fixing rod 18 slides into the positioning groove 10 to fix the positioning ring 11, so that the positioning ring 11 cannot rotate. Thus, the water mist nozzle 14, the mounting block 12 and the water pipe 13 are fixed simultaneously. After pulling out the positioning plate 15 and rotating the mounting block 12, the height and angle of the water mist sprayed by the water mist nozzle 14 can be adjusted, thereby increasing the flexibility and practicality of the dust suppression mechanism, and thus increasing the practicality and flexibility of the construction waste recycling grinding device.

[0041] In one embodiment, the grinding mechanism includes two first motors 5, which are respectively disposed on the front and rear sides of the grinding box 4. The first motors 5 are fixedly connected to the upper surface of the worktable 1. Two mounting rods are rotatably connected between the inner walls of the front and rear sides of the grinding box 4. Grinding rollers 28 are fixedly sleeved on the outer surface of each mounting rod. The two grinding rollers 28 are adapted to each other. The two mounting rods rotatably pass through the outer surfaces of the front and rear sides of the grinding box 4. The two first motors 5 are fixedly connected to one end of each mounting rod that passes through the grinding box 4. A trolley 29 is disposed between the two mounting frames 2. The upper surface of the trolley 29 is slidably connected to the lower surface of the worktable 1. The trolley 29 is slidably connected between the two mounting frames 2. The trolley 29 is adapted to the discharge chute 3.

[0042] In addition, in specific applications, the two first motors 5 are started, and the first motors 5 drive the corresponding mounting rods to rotate, which in turn drives the grinding rollers 28 to rotate synchronously. The rotation of the two grinding rollers 28 can grind the construction waste that enters the grinding box 4, crushing the construction waste to facilitate the recycling of the construction waste.

[0043] In addition, in practical applications, the trolley 29 can receive the construction waste that has been ground in the grinding box 4, preventing the ground construction waste from falling directly to the ground and generating dust. It can also prevent dust from flying during the process of construction waste being discharged from the grinding box 4, further improving the dust reduction effect of the construction waste recycling and grinding device.

[0044] In summary, by utilizing the above-mentioned technical solution of this utility model, by starting two first motors 5, the first motors 5 drive the corresponding mounting rods to rotate, thereby synchronously driving the grinding rollers 28 to rotate. The rotation of the two grinding rollers 28 can grind the construction waste entering the grinding box 4. During use, the water pipe 13 is away from the mounting block 12 from the external water source (such as a faucet). Water enters the mounting block 12 through the water pipe 13 and is then sprayed out as water mist through the water mist nozzle 14. This can reduce the dust generated during the feeding process of the grinding box 4. The second motor 24 is started, and the second motor 24 drives the support rod 25 to rotate. The rotation of the support rod 25 synchronously drives the connecting rod 26 and the connecting column 23 to rotate around the support rod 25. During the rotation of the connecting column 23, it slides in the sliding groove 22. In turn, the rotation of the connecting column 23 drives the fixing block 27 to reciprocate in a fan-shaped motion around the left rotating shaft 7. During this process, the left rotating shaft 7 also reciprocates in a fan-shaped motion. Under the action of the two gears 20, the two rotating shafts 7 are driven to rotate in opposite directions, which in turn drives the two mounting blocks 12 to rotate in opposite directions at a suitable angle. After reciprocating, they are reset. In this process, the two mounting blocks 12 are driven to rotate in opposite directions. Rotating the nozzle increases the spray range of the water mist nozzle 14 on the upper side of the grinding box 4, thus increasing the dust protection range of the water mist nozzle 14 on the grinding box 4. Initially, the mounting block 12 is vertical, so it does not affect the pouring of building materials into the grinding box 4. Pulling out the positioning plate 15 causes it to move the fixing rod 18 away from the L-shaped block 8. During this process, the positioning spring 16 is stretched, causing it to deform. This also causes the fixing rod 18 to slide out of the connecting groove 17, and then slide out of the corresponding positioning groove 10. At this time, the fixing rod 18 loses its restriction on the positioning ring 11, allowing the positioning ring 11 to rotate around the support column. During this process, the mounting block 12, water pipe 13, and water mist nozzle 14 are rotated simultaneously. When the mounting block 12 rotates to a suitable angle towards the grinding box 4, the pulling of the positioning plate 15 is released. Under the action of the release force of the positioning spring 16, the fixing rod 18 is driven to slide into the appropriate positioning groove 10. The fixing rod 18 slides into the positioning groove 10 to fix the positioning ring 11, so that the positioning ring 11 cannot rotate, thereby simultaneously fixing the water mist nozzle 14, mounting block 12, and water pipe 13.

[0045] Through the above technical solution, 1. After rotating the two mounting blocks 12 in opposite directions at a suitable angle, they are reset by reciprocating rotation. In this process, the two mounting blocks 12 are rotated, which increases the range of water mist spraying from the water mist nozzle 14 to the upper side of the grinding box 4, thereby increasing the dustproof range of the water mist nozzle 14 to the grinding box 4, improving the dustproof effect, and thus increasing the practicality of the construction waste recycling grinding device.

[0046] The positioning ring 11 is fixed by sliding the fixing rod 18 into the positioning groove 10, so that the positioning ring 11 cannot rotate. This simultaneously fixes the water mist nozzle 14, the mounting block 12, and the water pipe 13. Then, by pulling out the positioning plate 15 and rotating the mounting block 12, the height and angle of the water mist sprayed by the water mist nozzle 14 can be adjusted, thereby increasing the flexibility and practicality of the dust suppression mechanism and the construction waste recycling and grinding device.

[0047] The trolley 29 can receive the ground construction waste in the grinding box 4, preventing the ground construction waste from falling directly to the ground and causing dust. It can also prevent dust from flying during the discharge of construction waste from the grinding box 4, further improving the dust reduction effect of the construction waste recycling and grinding device.

[0048] Water mist is sprayed out by water mist nozzle 14, which can reduce the dust generated during the feeding process of grinding box 4, thereby protecting the on-site environment of construction waste recycling and grinding process, avoiding the raising of a large amount of dust, and thus preventing the dust from being inhaled into the workers' bodies and affecting their health.

[0049] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. 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 utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A construction waste recycling and grinding device with dust reduction effect, comprising a workbench (1), characterized in that, Two mounting brackets (2) are fixedly connected to the lower surface of the workbench (1). A discharge trough (3) extending from the lower surface of the upper surface of the workbench (1) is provided. A grinding box (4) is provided on the workbench (1). The lower side of the grinding box (4) is fixedly fitted inside the discharge trough (3). The discharge trough (3) communicates with the interior of the grinding box (4). A support block (6) is fixedly connected to the front surface of the grinding box (4). A dust-reducing mechanism is provided on the support block (6). The dust-reducing mechanism is used to reduce dust during the grinding process of construction waste recycling. An adjustment mechanism is provided on the dust-reducing mechanism. The adjustment mechanism is used to adjust the angle of the dust-reducing mechanism. A grinding mechanism is provided on the grinding box (4). The grinding mechanism is used to grind construction waste to facilitate the recycling of construction waste. The adjustment mechanism includes two positioning rings (11), which are fixedly connected to two mounting blocks (12) respectively. The upper surface of the horizontal block of the two L-shaped blocks (8) is provided with a rotating groove (9) extending out of its lower surface. The rotating groove (9) extends out of the rear surface of the horizontal block of the L-shaped block (8). Rotating support columns are located between the inner walls of the left and right sides of the rotating groove (9). The lower end of the mounting block (12) is fixedly connected to the outer surface of the rotating groove (9). The upper surface of the horizontal block of the L-shaped block (8) is provided with a connecting groove (17) extending out of its lower surface. The connecting groove (17) communicates with the corresponding rotating groove (9). The positioning ring (11) is slidably connected to the connecting groove (17). The support hole communicates with the corresponding connecting groove (17). A fixing rod (18) is slidably sleeved in the support hole. A positioning plate (15) is fixedly connected to the end of the fixing rod (18) away from the L-shaped block (8). A positioning spring (16) is fixedly connected between the positioning plate (15) and the corresponding L-shaped block (8). The positioning spring (16) is slidably sleeved on the outer surface of the fixing rod (18). A plurality of positioning grooves (10) are opened on the outer surface of the positioning ring (11). The positioning grooves (10) are arranged in a central array with the positioning ring (11) as the center. The end of the fixing rod (18) away from the positioning plate (15) extends into the positioning groove (10). The fixing rod (18) is slidably connected to the corresponding positioning groove (10).

2. The construction waste recycling and grinding device with dust reduction effect according to claim 1, characterized in that, The dust suppression mechanism includes two rotating shafts (7), which are rotatably connected to the upper surface of the support block (6). A first inner groove (19) is provided in the rotating shaft (7), and a second inner groove (21) is provided in the rotating shaft (7). The first inner groove (19) is located on the upper side of the second inner groove (21). The lower ends of the two rotating shafts (7) are rotatably inserted into the first inner groove (19) and the second inner groove (21). The lower ends of the two rotating shafts (7) are rotatably connected to the bottom wall of the second inner groove (21). Gears (20) are fixedly sleeved on the outer surface of the rotating shafts (7). The two gears (20) are located in the first inner groove (19) and are meshed together.

3. The construction waste recycling and grinding device with dust reduction effect according to claim 2, characterized in that, Both of the rotating shafts (7) are fixedly connected to the upper ends of L-shaped blocks (8). The L-shaped blocks (8) are in the shape of an "L". Each L-shaped block (8) is provided with a mounting block (12). The mounting block (12) is hollow inside. Multiple water mist nozzles (14) that communicate with the interior of the mounting block (12) are fixedly connected to the outer surface of the mounting block (12) on the side close to the grinding box (4). Water pipes (13) are fixedly connected to the outer surface of the mounting block (12) on the side away from the water mist nozzles (14). The water pipes (13) communicate with the interior of the mounting block (12).

4. The construction waste recycling and grinding device with dust reduction effect according to claim 3, characterized in that, A fixing block (27) is fixedly sleeved on the outer surface of the rotating shaft (7) located on the left. A sliding groove (22) extending from the lower surface of the fixing block (27) is opened on the upper surface of the fixing block (27). A second motor (24) is fixedly connected to the bottom wall of the second inner groove (21). A support rod (25) is fixedly connected to the rotation output shaft of the second motor (24). A connecting rod (26) is fixedly connected to the upper end of the support rod (25). A connecting column (23) is fixedly connected to the end of the connecting rod (26) away from the support rod (25). The connecting column (23) is a cylinder. The upper end of the connecting column (23) extends into the sliding groove (22) and the connecting column (23) is slidably connected to the sliding groove (22).

5. The construction waste recycling and grinding device with dust reduction effect according to claim 1, characterized in that, The grinding mechanism includes two first motors (5), which are respectively located on the front and rear sides of the grinding box (4). The first motors (5) are fixedly connected to the upper surface of the workbench (1). Two mounting rods are rotatably connected between the inner walls of the front and rear sides of the grinding box (4). Grinding rollers (28) are fixedly sleeved on the outer surface of each mounting rod. The two grinding rollers (28) are adapted to each other. The two mounting rods rotatably pass through the outer surfaces of the front and rear sides of the grinding box (4). The two first motors (5) are fixedly connected to one end of each mounting rod that passes through the grinding box (4). A trolley (29) is provided between the two mounting frames (2). The upper surface of the trolley (29) is slidably connected to the lower surface of the workbench (1). The trolley (29) is slidably connected between the two mounting frames (2). The trolley (29) is adapted to the discharge chute (3).

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