Construction waste recycling dust prevention device and method of use thereof

Abstract

The application discloses a construction waste recycling dustproof device and a use method thereof, and relates to the technical field of construction recycling equipment. The application comprises a treatment shell, a crushing mechanism arranged in the treatment shell, a first rotating shaft and a second rotating shaft movably connected to the inside of the treatment shell, and crushing rollers mounted on the surfaces of the first rotating shaft and the second rotating shaft. The crushing mechanism, the filtering mechanism and the dust filtering mechanism are arranged, the crushing rollers are driven to relatively rotate by a driving motor, efficient crushing is realized, dust-containing air is sucked into the rotating pipe by negative pressure generated by the rotation of the fan blades, large-particle dust is preliminarily intercepted by the metal filter screen, the screen surface is automatically cleaned by the scraper, the continuous filtering effect is ensured, the water is atomized and sprayed by the pressurized water pump, the water flow forms a water film along the bending piece, the rotating disc drives the nozzles to move in a circle to expand the dust-settling range, and the dust is settled after being adsorbed by the water film and condensed by the water mist, so that the dust emission is obviously inhibited, and the working environment is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of construction waste recycling equipment, and in particular relates to a dust control device for construction waste recycling and its usage method. Background Technology

[0002] Construction waste recycling refers to the process of classifying, processing, and reusing waste concrete, bricks, tiles, steel bars, and other waste generated during the construction, renovation, or demolition of buildings. Through processes such as crushing and screening, waste concrete blocks can be processed into recycled aggregates for the production of recycled bricks, road subbases, or new building materials. Dust pollution during construction waste recycling is a key challenge in urban air pollution control. Large amounts of dust can easily escape during demolition, crushing, screening, and transportation.

[0003] A Chinese patent application (or patent) with publication number CN219482816U discloses a construction waste recycling and processing device, including: a base, a crushing box, a feeding chamber, a discharge port, a transport chamber, and a screening assembly. A motor is installed inside the base; the bottom surface of the crushing box is fixedly connected to the top surface of the base, and a crushing roller assembly is installed inside the crushing box, with one side of the crushing roller assembly connected to the output end of the motor; the feeding chamber is fixed to the top surface of the crushing box; and the discharge port is located through the lower part of the side wall of the crushing box.

[0004] However, the above-mentioned device still has the following problems in the process of implementation: In the process of processing construction waste, it is crushed by crushing roller group. However, due to the high proportion of brittle materials such as bricks and slag in construction waste, it is very easy to break and generate a large amount of fine dust when squeezed and sheared by the roller group. This dust will quickly disperse into the work area, which not only seriously pollutes the air on site and reduces visibility, but also poses a threat to the respiratory health of operators.

[0005] To address this issue, we provide a dust control device for construction waste recycling and its usage method. Summary of the Invention

[0006] The purpose of this invention is to provide a dust control device for construction waste recycling and its usage method. Through the structural cooperation of the filtration mechanism and the dust removal mechanism, it solves the problem that existing construction waste processing equipment lacks dust control function, and dust will quickly disperse into the work area, causing environmental pollution.

[0007] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution.

[0008] This invention relates to a dust control device for construction waste recycling, comprising a processing shell, inside which a crushing mechanism is installed. The crushing mechanism includes a first rotating shaft and a second rotating shaft movably connected inside the processing shell, and crushing rollers mounted on the surfaces of the first and second rotating shafts. The crushing mechanism crushes the construction waste. A filtering mechanism is provided on one side of the processing shell, comprising a three-way pipe installed at the rear of the processing shell, two sets of rotating pipes movably connected inside the processing shell, a metal filter screen installed inside the rotating pipes, a scraper located on one side of the metal filter screen, an exhaust pipe connected to one end of the three-way pipe, and a drive shaft movably connected inside the exhaust pipe. The fan blades on the drive shaft surface and the transmission assembly on one side of the processing shell perform preliminary filtration of the dust generated by crushing through the filtration mechanism; a dust filtration mechanism is provided on one side of the exhaust pipe, the dust filtration mechanism includes a fixed plate connected to the other end of the exhaust pipe, a filter shell installed on the surface of the exhaust pipe, a circular groove opened inside the fixed plate, a drain hole opened inside the circular groove, a bent piece installed at the bottom of the fixed plate, a rotating plate movably connected to the surface of the fixed plate, a water guide groove opened inside the rotating plate, a connecting pipe connecting the water guide groove and the circular groove, a nozzle connected to the surface of the rotating plate, and a water supply assembly set on one side of the filter shell, which sprays water to suppress dust through the dust filtration mechanism.

[0009] The present invention is further configured such that the crushing mechanism includes a drive motor mounted on one side of the processing shell, a first gear mounted on the surface of the first rotating shaft, and a second gear mounted on the surface of the second rotating shaft.

[0010] The present invention is further configured such that one side of the first gear meshes with the second gear, and the output end of the drive motor is fixedly connected to the first rotating shaft.

[0011] The present invention is further configured such that the transmission assembly includes a transmission shaft mounted on one side of the second gear, a movable frame slidably connected to the surface of the transmission shaft, two sets of toothed plates mounted on both sides of the movable frame, an external toothed ring mounted on the surface of the rotating tube, and a third gear meshing on one side of the first gear.

[0012] The present invention is further configured such that one end of the drive shaft is fixedly connected to the third gear, and one side of the gear plate meshes with the external gear ring.

[0013] The present invention is further configured such that both sides of the scraper are fixedly connected to the inside of the processing shell by fixing blocks, one side of the rotating tube is connected to a three-way pipe, and the surface of the three-way pipe is movably connected to the inner wall of the rotating tube by bearings.

[0014] The present invention is further configured such that the water conveying assembly includes a support pipe movably connected inside the fixed disk, a bend pipe connected to the other end of the support pipe, a drive housing movably connected to the surface of the support pipe, turbine blades installed on the surface of the support pipe, a water conveying pipe connected to one side of the drive housing, a pressurized water pump connected to the other end of the water conveying pipe, a fourth gear installed on the surface of the support pipe, and an internal gear ring installed at the bottom of the rotating disk.

[0015] The invention is further configured such that the other end of the support pipe is connected to the water guide channel, the surface of the support pipe is movably connected to the inner wall of the fixed disk through a bearing, the bottom of the fixed disk is fixedly connected to the inside of the filter shell through a bracket, and the other end of the bent pipe is connected to the drive shell.

[0016] The present invention is further configured such that a delivery shell is installed on the top of the processing shell, two sets of rotating rods are movably connected inside the delivery shell, an isolation plate is fixedly connected to the surface of the rotating rods, a fifth gear is fixedly connected to the surface of each set of rotating rods, and a rotary motor is installed on one side of the delivery shell, the output end of the rotary motor is fixedly connected to the rotating rods.

[0017] A method for using a dust control device for construction waste recycling includes the following steps;

[0018] S1: The staff first puts the construction waste to be processed into the feeding shell, which then falls into two sets of isolation plates. Then, the external controller starts the rotary motor. The rotary motor, together with the rotating rod, drives the fifth gear to rotate. When the two sets of fifth gears rotate relative to each other, the construction waste at the top is turned down. At the same time, the shell is kept sealed to prevent the dust generated by the turning down from rising upwards. Then, the construction waste falls between the two sets of crushing rollers. At the same time, the drive motor is started. The drive motor, together with the first rotating shaft, drives the first gear to rotate. The first gear, together with the second gear, drives the second rotating shaft to rotate. The first and second rotating shafts drive the two sets of crushing rollers to rotate relative to each other to crush the construction waste.

[0019] S2: When construction waste is crushed and dust is generated, the first gear drives the third gear to rotate. The third gear, in conjunction with the drive shaft, drives the fan blades to rotate. The rotation of the fan blades creates negative pressure by causing airflow. The dust is drawn out of the processing shell through the three-way pipe and the rotating pipe. When the dust is discharged from the rotating pipe, it undergoes preliminary filtration through the metal filter screen. At the same time as the second gear rotates, it can synchronously drive the drive shaft to rotate. The drive shaft pushes the moving frame and two sets of toothed plates to move. The toothed plates, in conjunction with the external toothed ring, drive the rotating pipe to rotate. At this time, the position of the scraper remains unchanged. The scraper is used to clean the dust on the surface of the metal filter screen, so that the metal filter screen can be recycled and the filtration effect can be improved.

[0020] S3: The gas after preliminary filtration is discharged into the exhaust pipe and enters the bottom of the fixed plate. At the same time, the pressurized water pump is started. The pressurized water pump draws in external water, pressurizes it and injects it into the water supply pipe. After passing through the drive housing and the bend pipe, it is injected into the support pipe. After passing through the support pipe, it is discharged into the water guide groove and the connecting pipe and then into the circular groove. After that, it is discharged into the surface of the bend plate through the drain hole. The water slides evenly along the bend plate, increasing the contact area of ​​the water flow. When dust enters the filter housing, it can contact the liquid surface and adsorb the dust through the water flow, which plays a secondary filtration role.

[0021] S4: After the water flows into the guide channel, it simultaneously enters the nozzle, atomizes the water, and sprays it out. The water comes into contact with the dust, which absorbs moisture and falls due to its weight, further improving the filtration effect. At the same time, it can wash the bent blades, further improving the filtration effect. While the water flows into the drive housing, it can drive the turbine blades to rotate. The turbine blades, together with the support pipe, drive the fourth gear to rotate. The fourth gear, together with the internal gear ring, drives the rotating disk to rotate. The rotating disk drives the nozzle to rotate around the fixed disk, increasing the atomization range of the nozzle and improving the filtration effect on the dust. Finally, it is discharged through the pipe at the top of the filter housing, effectively reducing the dust in the working environment. The wastewater generated by filtration is discharged into the external sedimentation tank through the bottom pipe of the filter housing for sedimentation and filtration.

[0022] The present invention has the following beneficial effects: By setting up a crushing mechanism, a filtering mechanism, and a dust filtration mechanism, the present invention utilizes a drive motor to drive the crushing roller to rotate relative to each other to achieve efficient crushing. At the same time, the rotation of the fan blades generates negative pressure to draw dust-laden air into the rotating tube. The metal filter screen initially intercepts large dust particles, and the scraper automatically cleans the screen surface to ensure continuous filtration effect. The pressurized water pump atomizes and sprays water, and at the same time, the water flow forms a water film along the bent blades. The rotating disk drives the nozzle to move in a circular motion to expand the dust suppression range. After the dust is adsorbed by the water film and condensed by the water mist, it settles down, significantly suppressing dust dispersion and improving the working environment. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0024] Figure 1 This is a three-dimensional diagram of a dust control device for construction waste recycling.

[0025] Figure 2 This is a rear view of a dust control device for construction waste recycling.

[0026] Figure 3 This is a cross-sectional view of the processing shell in a dust control device for construction waste recycling.

[0027] Figure 4 A dust control device for construction waste recycling Figure 3 Rear view.

[0028] Figure 5 This is a cross-sectional view of a rotating tube in a dust control device for construction waste recycling.

[0029] Figure 6 This is a partial cross-sectional view of the exhaust duct in a dust control device for construction waste recycling.

[0030] Figure 7 This is a cross-sectional view of the filter shell in a dust control device for construction waste recycling.

[0031] Figure 8 This is a cross-sectional view of a fixed disc and a rotating disc in a dust control device for construction waste recycling.

[0032] Figure 9 This is a schematic diagram of the dust filtration mechanism in a dust control device for construction waste recycling.

[0033] Figure 10 This is a cross-sectional view of the drive housing in a dust control device for construction waste recycling.

[0034] Figure 11 This is a cross-sectional view of the loading shell in a dust control device for construction waste recycling.

[0035] In the attached diagram: 1. Processing shell; 2. Crushing mechanism; 21. First rotating shaft; 22. Second rotating shaft; 23. Crushing roller; 3. Filtering mechanism; 31. T-shaped pipe; 32. Rotating pipe; 33. Metal filter screen; 34. Scraper; 35. Exhaust pipe; 36. Drive shaft; 37. Fan blade; 38. Transmission assembly; 4. Dust filtration mechanism; 41. Fixed plate; 42. Filter shell; 43. Circular groove; 44. Drain hole; 45. Bending plate; 46. Rotating plate; 47. Water guide groove; 48. Connecting pipe; 49. Sprayer 410. Head; 24. Water supply assembly; 25. Drive motor; 26. First gear; 27. Second gear; 381. Drive shaft; 382. Moving frame; 383. Tooth plate; 384. External toothed ring; 385. Third gear; 411. Support pipe; 412. Bend; 413. Drive housing; 414. Turbine blade; 415. Water supply pipe; 416. Pressurized water pump; 417. Fourth gear; 418. Internal toothed ring; 5. Dispensing housing; 6. Rotating rod; 7. Isolation plate; 8. Fifth gear; 9. Rotary motor. Detailed Implementation

[0036] The technical solutions of the present invention will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present invention, and not all embodiments.

[0037] Example 1

[0038] Please see Figures 1-11This invention relates to a dust control device for construction waste recycling, comprising a processing shell 1, inside which is a crushing mechanism 2. The crushing mechanism 2 includes a first rotating shaft 21 and a second rotating shaft 22 movably connected inside the processing shell 1, and crushing rollers 23 mounted on the surfaces of the first rotating shaft 21 and the second rotating shaft 22. The crushing mechanism 2 crushes the construction waste. A filtering mechanism 3 is provided on one side of the processing shell 1, comprising a three-way pipe 31 mounted on the rear side of the processing shell 1, two sets of rotating pipes 32 movably connected inside the processing shell 1, a metal filter screen 33 mounted inside the rotating pipes 32, a scraper 34 disposed on one side of the metal filter screen 33, an exhaust pipe 35 connected to one end of the three-way pipe 31, and a drive shaft 36 movably connected inside the exhaust pipe 35. The fan blade 37 and the transmission assembly 38 located on one side of the processing shell 1 perform preliminary filtration of the dust generated by crushing through the filter mechanism 3. A dust filter mechanism 4 is provided on one side of the exhaust pipe 35. The dust filter mechanism 4 includes a fixed plate 41 connected to the other end of the exhaust pipe 35, a filter shell 42 installed on the surface of the exhaust pipe 35, a circular groove 43 opened inside the fixed plate 41, a drain hole 44 opened inside the circular groove 43, a bent piece 45 installed at the bottom of the fixed plate 41, a rotating plate 46 movably connected to the surface of the fixed plate 41, a water guide groove 47 opened inside the rotating plate 46, a connecting pipe 48 connecting the water guide groove 47 and the circular groove 43, a nozzle 49 connected to the surface of the rotating plate 46, and a water supply assembly 410 located on one side of the filter shell 42. The dust filter mechanism 4 sprays water to suppress dust.

[0039] Specifically: The processing shell 1 is used to isolate the dust generated during the crushing operation. The first rotating shaft 21 and the second rotating shaft 22 are movably connected inside the processing shell 1. The crushing roller 23 is installed on the surface of the first rotating shaft 21 and the second rotating shaft 22. Through relative rotation, it applies shearing and compressive force to the construction waste to achieve efficient crushing. Two sets of rotating tubes 32 are movably connected inside the processing shell 1 and can rotate freely, driving the metal filter screen 33 to dynamically filter and reduce local dust accumulation. The metal filter screen 33 is installed inside the rotating tubes 32 to intercept large dust particles for preliminary filtration. The scraper 34 is set on one side of the metal filter screen 33 and fixed to the inner wall of the processing shell 1. When the rotating tubes 32 rotate, the scraper 34 continuously scrapes the dust on the screen surface to keep the filter screen unobstructed. The exhaust pipe 35 is connected to one end of the three-way pipe 31 and serves as an airflow channel to guide the gas to the dust filter mechanism 4. The drive shaft 36 is movably connected inside the exhaust pipe 35 to transmit power to the fan blades 37. The fan blades 37 are installed on the drive shaft 36. The surface of shaft 36 generates negative pressure when rotating, drawing in dust-laden air and forming a continuous airflow circulation. The transmission component 38 is located on one side of the processing shell 1, transmitting the rotational power of the crushing mechanism 2 to the rotating tube 32 and the fan blade 37, realizing the linkage between crushing and dust removal. The filter shell 42 is installed on the surface of the exhaust pipe 35, enclosing and containing the mixture of water mist and dust, and collecting settled mud and water. The circular groove 43 is opened inside the fixed plate 41, temporarily storing pressurized water and evenly distributing the water flow through the drain hole 44. The drain hole 44 is opened inside the circular groove 43, guiding the water in the form of a thin stream to the bent plate 45. The bent plate 45 is installed at the bottom of the fixed plate 41, forming a zigzag shape so that the water flow is evenly spread to form a water film, increasing the contact area between dust and water film. The rotating plate 46 is movably connected to the surface of the fixed plate 41 and can rotate around the central axis to drive the nozzle 49 to make a circular motion, expanding the water mist coverage area. The water guide groove 47 is opened inside the rotating plate 46, delivering water to the connecting pipe 48 and the nozzle 49 respectively.

[0040] Example 2

[0041] Please see Figures 1-11 Based on Embodiment 1, the crushing mechanism 2 further includes a drive motor 24 mounted on one side of the processing shell 1, a first gear 25 mounted on the surface of the first rotating shaft 21, a second gear 26 mounted on the surface of the second rotating shaft 22, one side of the first gear 25 meshing with the second gear 26, the output end of the drive motor 24 being fixedly connected to the first rotating shaft 21, and the transmission assembly 38 including a transmission shaft 381 mounted on one side of the second gear 26, a movable frame 382 slidably connected to the surface of the transmission shaft 381, two sets of toothed plates 383 mounted on both sides of the movable frame 382, ​​an outer toothed ring 384 mounted on the surface of the rotating tube 32, a third gear 385 meshing with one side of the first gear 25, one end of the drive shaft 36 being fixedly connected to the third gear 385, and one side of the toothed plate 383 meshing with the outer toothed ring 384.

[0042] Specifically: the connecting pipe 48 connects the water guide trough 47 and the circular trough 43, introducing some water into the circular trough 43 to achieve synergistic water film dust suppression and atomized dust suppression; the nozzle 49 connects to the surface of the rotating disk 46, atomizing and spraying pressurized water, causing dust to collide and condense with the water mist before settling; the drive motor 24 is installed on one side of the treatment shell 1 to provide power; the transmission shaft 381 is installed on one side of the second gear 26, rotating with the second gear 26 and pushing the moving frame 382 to reciprocate; two sets of toothed plates 383 are installed on both sides of the moving frame 382, ​​moving back and forth with the moving frame 382 and intermittently meshing with the outer toothed ring 384, driving the outer toothed ring 384 to rotate intermittently in one direction; the outer toothed ring 384 is installed on the surface of the rotating tube 32, meshing with the toothed plates 383 and driving the rotating tube 32 to rotate step by step. The metal filter screen 33 is intermittently cleaned. The third gear 385 meshes with one side of the first gear 25 and rotates in the opposite direction to the first gear 25, transmitting power to the drive shaft 36. The third gear 385 drives the drive shaft 36 and the fan blade 37 to rotate at high speed, generating a suction airflow. The support pipe 411 is movably connected to the inside of the fixed disk 41, and can rotate freely and serve as a water channel to transport water to the rotating disk 46. The bent pipe 412 is connected to the other end of the support pipe 411, connecting the support pipe 411 to the drive housing 413 to guide the water flow direction. The drive housing 413 is movably connected to the surface of the support pipe 411, and forms a water flow channel inside for high-pressure water to pass through. The turbine blade 414 is installed on the surface of the support pipe 411, and generates a rotational torque under the impact of the water flow, driving the support pipe 411 to rotate.

[0043] Example 3

[0044] Please see Figures 1-11 Based on Embodiments 1 and 2, both sides of the scraper 34 are fixedly connected to the inside of the processing shell 1 via fixing blocks. One side of the rotating pipe 32 is connected to the three-way pipe 31. The surface of the three-way pipe 31 is movably connected to the inner wall of the rotating pipe 32 via bearings. The water conveying assembly 410 includes a support pipe 411 movably connected to the inside of the fixed plate 41, a bend 412 connected to the other end of the support pipe 411, a drive shell 413 movably connected to the surface of the support pipe 411, turbine blades 414 mounted on the surface of the support pipe 411, a water conveying pipe 415 connected to one side of the drive shell 413, and a pressurized water pump 416 connected to the other end of the water conveying pipe 415. The fourth gear 417 on the surface of 11 is installed on the internal gear ring 418 at the bottom of the rotating disk 46. The other end of the support tube 411 is connected to the water guide trough 47. The surface of the support tube 411 is movably connected to the inner wall of the fixed disk 41 through the bearing. The bottom of the fixed disk 41 is fixedly connected to the inside of the filter shell 42 through the bracket. The other end of the bent tube 412 is connected to the drive shell 413. The top of the processing shell 1 is equipped with an injection shell 5. Two sets of rotating rods 6 are movably connected inside the injection shell 5. The surface of the rotating rods 6 is fixedly connected to the isolation plate 7. The surface of both sets of rotating rods 6 is fixedly connected to the fifth gear 8. A rotary motor 9 is installed on one side of the injection shell 5. The output end of the rotary motor 9 is fixedly connected to the rotating rod 6.

[0045] Specifically: Water supply pipe 415 is connected to one side of drive housing 413, delivering high-pressure water from pressurized water pump 416 into drive housing 413. Pressurized water pump 416 is connected to the other end of water supply pipe 415, drawing water from an external water source and pressurizing it. Fourth gear 417 is mounted on the surface of support pipe 411, rotating synchronously with support pipe 411 and driving internal gear ring 418. Internal gear ring 418 is mounted on the bottom of rotating disk 46, meshing with fourth gear 417 to drive rotating disk 46 and nozzle 49 in circumferential motion. The other end of support pipe 411 is connected to water guide channel 47, allowing water to directly enter water guide channel 47 and then be diverted to connecting pipe 48 and nozzle 49. The bottom of fixed disk 41 is fixed to the inside of filter housing 42 via bracket. The fixed connection ensures the stability of the fixed plate 41. The other end of the bend 412 is connected to the drive housing 413, guiding the water flow through the drive housing 413 back to the support pipe 411 to form a complete water channel. The feeding shell 5 is installed on the top of the processing shell 1 as a feeding channel to guide the waste material into the process in an orderly manner and reduce dust emission. Two sets of rotating rods 6 are movably connected inside the feeding shell 5, and can rotate freely and drive the isolation plate 7 to rotate. The isolation plate 7 is fixedly connected to the surface of the rotating rod 6. The two sets of isolation plates 7 are arranged opposite each other to form a temporary hopper. The rotation realizes quantitative feeding and prevents dust from escaping upward. The fifth gear 8 is fixedly connected to the surface of the two sets of rotating rods 6 and meshes with each other, so that the two sets of rotating rods 6 rotate synchronously in opposite directions.

[0046] The working principle of this invention is as follows: Workers first place the construction waste to be processed into the loading shell 5, which then falls into two sets of isolation plates 7. Next, an external controller starts a rotary motor 9. The rotary motor 9, in conjunction with a rotating rod 6, drives the fifth gear 8 to rotate. When the two sets of fifth gears 8 rotate relative to each other, the construction waste at the top is tumbled downwards while maintaining a sealed environment to prevent dust generated during the tumbling process from rising upwards. Subsequently, the construction waste falls between two sets of crushing rollers 23. Simultaneously, a drive motor 24 is started. The drive motor 24, in conjunction with a first rotating shaft 21, drives the first gear 25 to rotate. The first gear 25, in conjunction with a second gear 26, drives the second rotating shaft 22 to rotate. The first rotating shaft 21 and the second rotating shaft 22 drive the two sets of crushing rollers 23 to rotate relative to each other, thus crushing the construction waste.

[0047] When construction waste is crushed and dust is generated, the first gear 25 drives the third gear 385 to rotate. The third gear 385, in conjunction with the drive shaft 36, drives the fan blade 37 to rotate. The rotation of the fan blade 37 creates negative pressure by causing airflow. The dust is drawn out of the processing shell 1 through the three-way pipe 31 and the rotating pipe 32. When the dust is discharged from the rotating pipe 32, it undergoes preliminary filtration through the metal filter screen 33. At the same time as the second gear 26 rotates, it can synchronously drive the drive shaft 381 to rotate. The drive shaft 381 pushes the moving frame 382 and the two sets of toothed plates 383 to move. The toothed plates 383, in conjunction with the outer toothed ring 384, drive the rotating pipe 32 to rotate. At this time, the position of the scraper 34 remains unchanged. The scraper 34 is used to clean the dust on the surface of the metal filter screen 33, so that the metal filter screen 33 can be recycled and the filtration effect can be improved.

[0048] The gas after preliminary filtration is discharged into the exhaust pipe 35 and enters the bottom of the fixed plate 41. At the same time, the pressurized water pump 416 is started, which draws in external water, pressurizes it and injects it into the water supply pipe 415. After passing through the drive housing 413 and the bend pipe 412, it is injected into the support pipe 411. After passing through the support pipe 411, it is discharged into the water guide trough 47 and the connecting pipe 48 and then into the circular groove 43. After that, it is discharged through the drain hole 44 onto the surface of the bent plate 45. The water slides evenly along the bent plate 45, increasing the contact area of ​​the water flow. When dust enters the filter housing 42, it can contact the liquid surface and adsorb the dust through the water flow, thus playing a secondary filtration role.

[0049] After the water flows into the water guide trough 47, it can simultaneously enter the nozzle 49, where the water is atomized and sprayed out. Upon contact with the dust, the dust absorbs moisture and falls due to its weight, further improving the filtration effect. At the same time, it can also wash the bent blades 45, further improving the filtration effect. Simultaneously, the water flows into the drive housing 413, which can drive the turbine blades 414 to rotate. The turbine blades 414, together with the support pipe 411, drive the fourth gear 417 to rotate. The fourth gear 417, together with the internal gear ring 418, drives the rotating disk 46 to rotate. The rotating disk 46 drives the nozzle 49 to rotate around the fixed disk 41, increasing the atomization range of the nozzle 49 and improving the filtration effect on the dust. Finally, the water is discharged through the pipe at the top of the filter housing 42, effectively reducing the dust in the working environment. The wastewater generated by filtration is discharged into the external sedimentation tank through the bottom pipe of the bottom filter housing 42 for sedimentation and filtration.

[0050] The preferred embodiments of the present invention disclosed above are only for the purpose of illustrating the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation described herein. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can better understand and utilize the present invention.

Claims

1. A dust control device for construction waste recycling, comprising a processing shell (1), characterized in that: The processing shell (1) is equipped with a crushing mechanism (2), which includes a first rotating shaft (21) and a second rotating shaft (22) movably connected inside the processing shell (1), and crushing rollers (23) installed on the surfaces of the first rotating shaft (21) and the second rotating shaft (22). The crushing mechanism (2) crushes the construction waste. A filter mechanism (3) is provided on one side of the processing shell (1). The filter mechanism (3) includes a three-way pipe (31) installed on the rear side of the processing shell (1), two sets of rotating pipes (32) movably connected to the inside of the processing shell (1), a metal filter screen (33) installed inside the rotating pipe (32), a scraper (34) set on one side of the metal filter screen (33), an exhaust pipe (35) connected to one end of the three-way pipe (31), a drive shaft (36) movably connected to the inside of the exhaust pipe (35), a fan blade (37) installed on the surface of the drive shaft (36), and a transmission assembly (38) set on one side of the processing shell (1). The filter mechanism (3) performs preliminary filtration of the dust generated by crushing. A dust filtration mechanism (4) is provided on one side of the exhaust pipe (35). The dust filtration mechanism (4) includes a fixed plate (41) connected to the other end of the exhaust pipe (35), a filter shell (42) installed on the surface of the exhaust pipe (35), a circular groove (43) opened inside the fixed plate (41), a drain hole (44) opened inside the circular groove (43), a bent piece (45) installed at the bottom of the fixed plate (41), a rotating plate (46) movably connected to the surface of the fixed plate (41), a water guide groove (47) opened inside the rotating plate (46), a connecting pipe (48) connecting the water guide groove (47) and the circular groove (43), a nozzle (49) connected to the surface of the rotating plate (46), and a water supply component (410) provided on one side of the filter shell (42). The dust is sprayed with water to reduce dust through the dust filtration mechanism (4).

2. The dust control device for construction waste recycling according to claim 1, characterized in that: The crushing mechanism (2) also includes a drive motor (24) installed on one side of the processing shell (1), a first gear (25) installed on the surface of the first rotating shaft (21), and a second gear (26) installed on the surface of the second rotating shaft (22).

3. The dust control device for construction waste recycling according to claim 2, characterized in that: The first gear (25) meshes with the second gear (26) on one side, and the output end of the drive motor (24) is fixedly connected to the first rotating shaft (21).

4. A dust control device for construction waste recycling according to claim 2, characterized in that: The transmission assembly (38) includes a transmission shaft (381) mounted on one side of the second gear (26), a movable frame (382) slidably connected to the surface of the transmission shaft (381), two sets of toothed plates (383) mounted on both sides of the movable frame (382), an external toothed ring (384) mounted on the surface of the rotating tube (32), and a third gear (385) meshing with one side of the first gear (25).

5. A dust control device for construction waste recycling according to claim 4, characterized in that: One end of the drive shaft (36) is fixedly connected to the third gear (385), and one side of the toothed plate (383) meshes with the external toothed ring (384).

6. A dust control device for construction waste recycling according to claim 1, characterized in that: Both sides of the scraper (34) are fixedly connected to the inside of the processing shell (1) through fixing blocks. One side of the rotating tube (32) is connected to the three-way tube (31). The surface of the three-way tube (31) is movably connected to the inner wall of the rotating tube (32) through a bearing.

7. A dust control device for construction waste recycling according to claim 1, characterized in that: The water supply assembly (410) includes a support pipe (411) movably connected to the inside of the fixed disk (41), a bend (412) connected to the other end of the support pipe (411), a drive housing (413) movably connected to the surface of the support pipe (411), a turbine blade (414) mounted on the surface of the support pipe (411), a water supply pipe (415) connected to one side of the drive housing (413), a pressurized water pump (416) connected to the other end of the water supply pipe (415), a fourth gear (417) mounted on the surface of the support pipe (411), and an internal gear ring (418) mounted on the bottom of the rotating disk (46).

8. A dust control device for construction waste recycling according to claim 7, characterized in that: The other end of the support pipe (411) is connected to the water guide channel (47). The surface of the support pipe (411) is movably connected to the inner wall of the fixed disk (41) through the bearing. The bottom of the fixed disk (41) is fixedly connected to the inside of the filter shell (42) through the bracket. The other end of the bent pipe (412) is connected to the drive shell (413).

9. A dust control device for construction waste recycling according to claim 1, characterized in that: The processing shell (1) is equipped with a delivery shell (5) on top. Two sets of rotating rods (6) are movably connected inside the delivery shell (5). An isolation plate (7) is fixedly connected to the surface of the rotating rods (6). A fifth gear (8) is fixedly connected to the surface of both sets of rotating rods (6). A rotary motor (9) is installed on one side of the delivery shell (5). The output end of the rotary motor (9) is fixedly connected to the rotating rods (6).

10. A method of using a dust control device for construction waste recycling, based on the dust control device for construction waste recycling as described in any one of claims 1-9, characterized in that, Includes the following steps; S1: The staff first put the construction waste to be processed into the loading shell (5) and it falls into the two sets of isolation plates (7). Then, the external controller starts the rotary motor (9). The rotary motor (9) and the rotary rod (6) drive the fifth gear (8) to rotate. When the two sets of fifth gears (8) rotate relative to each other, the construction waste at the top is flipped down. At the same time, it is kept sealed to prevent the dust generated by the flipping from rising. Then the construction waste falls between the two sets of crushing rollers (23). At the same time, the drive motor (24) is started. The drive motor (24) and the first rotating shaft (21) drive the first gear (25) to rotate. The first gear (25) and the second gear (26) drive the second rotating shaft (22) to rotate. The first rotating shaft (21) and the second rotating shaft (22) drive the two sets of crushing rollers (23) to rotate relative to each other to crush the construction waste. S2: When dust is generated during the crushing of construction waste, the third gear (385) is driven to rotate under the drive of the first gear (25). The third gear (385) and the drive shaft (36) drive the fan blade (37) to rotate. The rotation of the fan blade (37) causes air to flow and generate negative pressure. The dust inside the processing shell (1) is extracted through the three-way pipe (31) and the rotating pipe (32). When the dust is discharged from the rotating pipe (32), it is initially filtered through the metal filter screen (33). At the same time as the second gear (26) rotates, the drive shaft (381) can be driven to rotate synchronously. The drive shaft (381) pushes the moving frame (382) and the two sets of toothed plates (383) to move. The toothed plate (383) and the external toothed ring (384) drive the rotating pipe (32) to rotate. At this time, the position of the scraper (34) remains unchanged. The scraper (34) is used to clean the dust on the surface of the metal filter screen (33), so that the metal filter screen (33) can be recycled and the filtration effect is improved. S3: The gas after preliminary filtration is discharged into the exhaust pipe (35) and enters the bottom of the fixed plate (41). At the same time, the pressurized water pump (416) is started. The pressurized water pump (416) draws in external water and pressurizes it before injecting it into the water supply pipe (415). After passing through the drive shell (413) and the bend pipe (412), it is injected into the support pipe (411). After passing through the support pipe (411), it is discharged into the water guide groove (47) and the connecting pipe (48) before being injected into the circular groove (43). Then, it is discharged to the surface of the bent plate (45) through the drain hole (44). The water slides evenly along the bent plate (45), increasing the contact area of ​​the water flow. When the dust enters the filter shell (42), it can contact the liquid surface and adsorb the dust through the water flow, thus playing a secondary filtration role. S4: After the water flows into the guide channel (47), it can simultaneously enter the nozzle (49). The nozzle (49) atomizes the water flow and sprays it out. It comes into contact with the dust. After the dust absorbs moisture, it falls due to its weight, which further improves the filtration effect. At the same time, it can wash the bent blade (45), which further improves the filtration effect. When the water flows into the drive housing (413), it can use the water flow to drive the turbine blade (414) to rotate. The turbine blade (414) and the support pipe (411) drive the fourth gear (417) to rotate. The fourth gear (417) and the internal gear ring (418) drive the rotating disk (46) to rotate. The rotating disk (46) drives the nozzle (49) to rotate around the fixed disk (41), which increases the atomization range of the nozzle (49) and improves the filtration effect on the dust. Finally, it is discharged through the pipe at the top of the filter housing (42), which effectively reduces the dust in the working environment. The wastewater generated by filtration is discharged into the external sedimentation tank through the bottom pipe of the filter housing (42) for sedimentation and filtration.

Images