Concrete crushing device with dust falling function
By setting up a collection mechanism and a wind mechanism in the concrete crushing device, and using spray components and roller rotation impact technology, the problem of dust diffusion during the crushing process is solved, effective collection and reuse of dust is achieved, and workers' health is protected.
Patent Information
- Application Number
- CN202421789661.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-07-26
AI Technical Summary
The diffusion of dust generated when crushing concrete affects the health of operators, and the existing technology has not effectively solved the problem of dust diffusion.
A concrete crushing device with dust reduction function is designed. By setting up a collection mechanism and a wind force mechanism at the discharge port of the crusher, the dust is collected into the pipe by using wind power, and spraying water vapor through the spray assembly to solidify the dust. The dust is attached by rotating the drum, and the driving box drives the drum to rotate and hit the solidified dust block for secondary crushing to prevent clogging.
It effectively reduces the diffusion of dust, prevents dust pollution around the crusher, avoids blockage of the collection mechanism, and realizes effective collection and reuse of dust.
Smart Images
Figure CN223184600U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of road and bridge construction equipment, in particular to a concrete crushing device with a dust reduction function. Background Art
[0002] The contents of road subgrade construction generally include: main body of subgrade engineering, borrow pits and spoil piles, slope protection roads and debris platforms, comprehensive subgrade drainage, subgrade protection and reinforcement, fill and excavation subgrade, subgrade in special engineering geological areas, construction in winter and rainy seasons, and ditch or river diversion projects caused by roadbed construction, construction organization of earthwork projects, subgrade renovation, quality inspection, project acceptance and other engineering projects.
[0003] After demolishing old and dilapidated concrete pavements and concrete bridges, large concrete blocks need to be crushed to reduce their volume to facilitate workers to clean up and transport construction waste at the construction site; however, when concrete is crushed by a crusher, a lot of dust is generated. If this dust is not handled, it will affect the health of the workers operating the crusher. Utility Model Content
[0004] The purpose of the utility model is to provide a concrete crushing device with a dust reduction function, which reduces the diffusion of dust generated by the crusher by arranging a dust collection mechanism at the discharge port of the crusher.
[0005] The technical solution adopted by the concrete crushing device with dust reduction function disclosed in the utility model is:
[0006] The invention comprises a crusher, a collecting mechanism and a wind mechanism, wherein a feed port is provided on the top of the crusher, a discharge port is provided on the bottom of the crusher, the collecting mechanism comprises a first pipe, a second pipe and a water storage tank, one end of the first pipe is close to the discharge port, the wind mechanism faces one end of the first pipe, the discharge port is located between one end of the first pipe and the wind mechanism, the other end of the first pipe is communicated with the middle of the second pipe, a spray assembly is provided at one end of the second pipe, a water pipe is provided on the spray assembly, the water pipe passes through the second pipe and is connected to the water storage tank, a plurality of first chutes arranged at intervals are provided on both sides of the second pipe, and one side of the second pipe is slidably connected to the It is connected to a first drive box, and a second drive box is provided on the other side of the second pipe. A plurality of first rollers and a plurality of second rollers are provided in the second pipe, and the plurality of first rollers and the plurality of second rollers are arranged alternately at intervals. The central axes at both ends of the first roller are placed in adjacent first chutes, the central axis at one end of the first roller is rotatably connected to the first drive box, the central axis at one end of the second roller is rotatably connected to the second pipe, the central axis at the other end of the second roller passes through the second pipe and is rotatably connected to the second drive box, a first cylinder is fixedly connected to the outside of the second pipe, the output shaft of the first cylinder is fixedly connected to the first drive box, and the other end of the second pipe is close to the top of the feed port.
[0007] As a preferred solution, a slide is slidably connected in the second drive box, and a plurality of second slide grooves arranged at intervals are provided on the slide. The central axis of the other end of the first roller passes through the second pipe and the second drive box and is rotatably connected to the slide. The central axis of the other end of the second roller is placed in the second slide groove, and one end of the slide passes through the second drive box. One end of the slide and one end of the first drive box are fixedly connected to a connecting bracket, and the output shaft of the first cylinder is fixedly connected to the connecting bracket.
[0008] As a preferred solution, a plurality of third chutes are provided on both sides of the second pipe, a plurality of third rollers and a plurality of fourth rollers are provided in the second pipe, and the plurality of third rollers and the plurality of fourth rollers are alternately arranged, and the third roller and the fourth roller are respectively located below the first roller and the second roller, and the central axes at both ends of the third roller are placed in adjacent third chutes, the central axis at one end of the third roller is rotatably connected to the first drive box, and the central axis at the other end of the third roller passes through the second pipe and the second drive box in turn and is rotatably connected to the slide plate, the central axis at one end of the fourth roller is rotatably connected to the second pipe, and the central axis at the other end of the fourth roller passes through the second pipe and is rotatably connected to the second drive box.
[0009] As a preferred solution, a plurality of fourth sliding grooves are provided on the slide plate, and the central axis of the other end of the fourth roller is placed in the fourth sliding groove.
[0010] As a preferred solution, the collection mechanism also includes a third pipe, the cross-section of the third pipe is obtuse-angled, one end of the third pipe is connected to the other end of the second pipe, the other end of the third pipe extends above the feed port, and an air-drying area is provided on the inner wall of the third pipe, the air-drying area is close to the other end of the third pipe, and the air-drying area is located below the other end of the second pipe.
[0011] As a preferred solution, a second cylinder is fixedly connected to the outer side of the third pipe, the output shaft of the second cylinder passes through the third pipe, and the output shaft of the second cylinder is fixedly connected to a rejection plate, and the rejection plate is located above the air-drying area.
[0012] As a preferred solution, a plurality of first pulleys and second pulleys are provided in the first driving box, the first pulley is fixedly connected to the second pulley, the center of the first pulley is coaxial with the center of the second pulley, and the plurality of first pulleys are fixedly connected to the central axis at one end of the first roller and the central axis at one end of the third roller, respectively, a first belt is provided on two adjacent first pulleys, and a second belt is provided on two adjacent second pulleys, a first motor is fixedly connected to the outer side of the first driving box, the output shaft of the first motor passes through the first driving box, and the output shaft of the first motor is fixedly connected to the center of one of the second pulleys.
[0013] As a preferred solution, a plurality of third pulleys and a fourth pulley are provided in the second driving box, the third pulley is fixedly connected to the fourth pulley, the center of the third pulley is coaxial with the center of the fourth pulley, and the plurality of third pulleys are respectively fixedly connected to the central axis at one end of the second roller and the central axis at one end of the fourth roller, two adjacent third pulleys are provided with a third belt, and two adjacent fourth pulleys are provided with a fourth belt, a second motor is fixedly connected to the outer side of the second driving box, the output shaft of the second motor passes through the second driving box, and the output shaft of the second motor is fixedly connected to the center of one of the fourth pulleys.
[0014] As a preferred solution, the wind power mechanism includes a bellows and multiple fans, with an air inlet and an air outlet respectively provided at both ends of the bellows, an air duct provided inside the bellows, the air inlet and the air outlet being connected through the air duct, the bellows being fixedly connected to the bottom of the crusher, the air outlet being close to the discharge port, and multiple fans being arranged at intervals in the air duct.
[0015] The beneficial effects of the concrete crushing device with dust reduction function disclosed in the utility model are:
[0016] When the crusher crushes concrete and discharges fragments from the discharge port, fine dust is generated. The wind mechanism blows the fine dust into the collection mechanism, and the dust enters the second pipe along the first pipe. The spray mechanism sprays water vapor to make the dust heavier and adhere to the first and second rollers, thereby preventing the dust generated by the crusher from further spreading. The first drive box drives the first roller to rotate, and the second drive box drives the second roller to rotate, so that the first and second rollers can evenly adhere to the dust.
[0017] Since the dust contains concrete dust, the dust attached to the first roller and the second roller will solidify into dust blocks. The dust that floats into the second pipe continues to adhere to the first roller and the second roller, and the unsolidified dust blocks will accelerate their solidification. The first cylinder pushes the first drive box to slide a certain distance, so that the first roller is close to the second roller, and the solidified concrete blocks on the first roller collide with the solidified dust blocks on the second roller. The collision breaks the two dust blocks and drops them into the feed port of the crusher for secondary crushing, thereby avoiding clogging of the collection mechanism due to excessive dust. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 The utility model is a structural schematic diagram of a concrete crushing device with a dust reduction function.
[0019] Figure 2 The utility model is a structural schematic diagram of a concrete crushing device with a dust reduction function.
[0020] Figure 3 It is a partial cross-sectional view of the first pipe and the second pipe of a concrete crushing device with dust reduction function according to the utility model.
[0021] Figure 4 This is a schematic structural diagram of the second pipe and the third pipe of a concrete crushing device with a dust reduction function according to the present invention.
[0022] Figure 5 This is a schematic structural diagram of a first drive box of a concrete crushing device with a dust reduction function according to the present invention.
[0023] Figure 6 This is a schematic structural diagram of a second drive box of a concrete crushing device with a dust reduction function according to the present invention.
[0024] Figure 7 The utility model is a schematic diagram of the slide structure of a concrete crushing device with a dust reduction function.
[0025] Figure 8 This is a cross-sectional view of the third pipe of the concrete crushing device with dust reduction function of the utility model. DETAILED DESCRIPTION
[0026] The present invention will be further described and explained below in conjunction with specific embodiments and accompanying drawings:
[0027] Please refer to Figure 1 and Figure 2 .
[0028] The utility model discloses a concrete crushing device with dust reduction function, comprising a crusher 1, a base extending from the bottom of the crusher 1, a feed port 11 provided on the top of the crusher 1, a discharge port 12 provided on the bottom of the crusher 1, and the discharge port 12 passes through the base.
[0029] Please refer to Figure 1-Figure 3 .
[0030] Also includes a wind mechanism 2 and a collection mechanism 3;
[0031] The wind mechanism 2 includes a bellows and multiple fans. An air inlet and an air outlet are respectively provided at both ends of the bellows. An air duct is provided inside the bellows, which connects the air inlet and the air outlet. Multiple fans are arranged at intervals in the air duct. Air enters from the air inlet through the air duct and is discharged from the exhaust port through the suction force of the fan; the bellows is fixedly connected to the bottom of the base, and the air outlet is close to the discharge port 12.
[0032] The collecting mechanism 3 includes a first pipe 31, the middle part of which is fixedly connected to the base. The first pipe 31 passes through the base. One end of the first pipe 31 extends with an outward-opening closing end 311, which is close to the discharge port 12. The discharge port 12 is located between the closing end 311 of the first pipe 31 and the wind mechanism 2. When the discharge port 12 discharges dust-containing fragments, the wind mechanism 2 can blow light dust into the first pipe 31. The structure of the closing end 311 can expand the area of the first pipe 31 that receives dust.
[0033] Please refer to Figure 3-Figure 8 .
[0034] The collecting mechanism 3 further includes a second pipe 32 and a water storage tank 34;
[0035] The water tank 34 is placed on the top of the base; the second pipe 32 is located above the grinder 1, and the other end of the first pipe 31 is connected to the middle of the second pipe 32; the first pipe 31 guides the dust blown in by the wind mechanism 2 into the middle of the second pipe 32;
[0036] Furthermore, a spray assembly 33 is provided at one end of the second pipe 32, and the spray assembly 33 closes one end of the second pipe 32. A plurality of nozzles are arranged in a rectangular array at intervals on the spray assembly 33, and the nozzles of the spray assembly 33 are directed toward the middle of the second pipe 32; a water pump is provided in the spray assembly 33, and the water pump is connected to the nozzles. A water pipe 331 is provided on the outside of the spray assembly 33, and one end of the water pipe 331 is connected to the water pump, and the other end of the water pipe 331 passes through the second pipe 32 and is connected to the water tank; the water pump absorbs water from the water tank through the water pipe 331 and supplies it to the nozzle, and the nozzle sprays water mist, which makes the dust in the middle of the second pipe 32 heavier and falls off.
[0037] Two parallel first slide rails are provided on one side of the second pipe 32, and a first drive box 35 is slidably connected to one side of the second pipe 32. The top and bottom of the first drive box 35 are slidably connected to the two first slide rails respectively; a second drive box 36 is provided on the other side of the second pipe 32; a plurality of first slide grooves 323 arranged at intervals are opened on both sides of the second pipe 32, and a plurality of third slide grooves 324 arranged at intervals are opened on both sides of the second pipe 32. The first drive box 35 covers the first slide grooves 323 and the third slide grooves 324 on one side of the second pipe 32, and the second drive box 36 covers the first slide grooves 323 and the third slide grooves 324 on the other side of the second pipe 32;
[0038] The second duct 32 is provided with a plurality of first rollers 325, a plurality of second rollers 326, a plurality of third rollers 327, and a plurality of fourth rollers 328. A central axis extends from both ends of the first roller 325, the second roller 326, the third roller 327, and the fourth roller 328. The outer sides of the first roller 325, the second roller 326, the third roller 327, and the fourth roller 328 are provided with a plurality of grooves arranged at intervals. The grooves can increase the success rate of dust adhering to the outer sides of the first roller 325, the second roller 326, the third roller 327, and the fourth roller 328.
[0039] Furthermore, a plurality of first rollers 325 and a plurality of second rollers 326 are arranged alternately at intervals, the central axis of the first roller 325 is parallel to the central axis of the second roller 326, a gap is formed between the first roller 325 and the second roller 326, and the first roller 325 and the second roller 326 are arranged in a straight line horizontally to form a first attachment area, the first attachment area is close to the connection between the first pipe 31 and the second pipe 32, and the first attachment area is located below the spray assembly 33; the central axes of both ends of the first roller 325 are placed in adjacent first chutes 323, the central axis of one end of the first roller 325 is rotatably connected to the first drive box 35; the central axis of one end of the second roller 326 is rotatably connected to the inner wall of the second pipe 32, and the central axis of the other end of the second roller 326 passes through the second pipe 32 and is rotatably connected to the second drive box 36;
[0040] Furthermore, a plurality of third rollers 327 and a plurality of fourth rollers 328 are arranged alternately, the central axis of the third roller 327 is parallel to the central axis of the fourth roller 328, and the third roller 327 and the fourth roller 328 are arranged horizontally and parallelly in a straight line to form a second attachment area. The third roller 327 and the fourth roller 328 are respectively located below the first roller 325 and the second roller 326, and the second attachment area is located below the first attachment area. In this embodiment, the second attachment area is preferably staggered with the first attachment area, and the second roller 326 makes the third roller 327 The third roller 327 and the fourth roller 328 are respectively located directly below the multiple gaps, so that dust can also adhere to the third roller 327 and the fourth roller 328 when passing through the gap between the first roller 325 and the second roller 326; the central axes at both ends of the third roller 327 are placed in the adjacent third chute 324, the central axis at one end of the third roller 327 is rotationally connected to the first drive box 35, the central axis at one end of the fourth roller 328 is rotationally connected to the second pipe 32, and the central axis at the other end of the fourth roller 328 passes through the second pipe 32 and is rotationally connected to the second drive box 36.
[0041] A slide 37 is slidably connected to the second drive box 36, and one end of the slide 37 passes through the second drive box 36. Second slide rails are provided at the top and bottom of the second drive box 36, and the top and bottom of the slide 37 are slidably connected to the two second slide rails respectively; a plurality of second slide grooves 371 arranged at intervals are provided on the slide 37, and a plurality of fourth slide grooves 372 are provided on the slide 37; the central axis of the other end of the first roller 325 sequentially passes through the second pipe 32 and the second drive box 36 and is rotationally connected to the slide 37, the central axis of the other end of the third roller 327 sequentially passes through the second pipe 32 and the second drive box 36 and is rotationally connected to the slide 37, the central axis of the other end of the second roller 326 is placed in the second slide groove 371, and the central axis of the other end of the fourth roller 328 is placed in the fourth slide groove 372.
[0042] After absorbing the water mist sprayed by the spray assembly 33, the dust becomes heavier and falls and adheres to the outside of the first roller 325, the outside of the second roller 326, the outside of the third roller 327 and the outside of the fourth roller 328. The outside of the first roller 325, the outside of the second roller 326, the outside of the third roller 327 and the outside of the fourth roller 328 are all wetted by the water mist sprayed by the spray assembly 33, and can also adhere to the dust passing through between the first roller 325 and the second roller 326 and between the third roller 327 and the fourth roller 328.
[0043] Please refer to Figure 5 and Figure 6 .
[0044] The first driving box 35 is provided with a plurality of first pulleys and a second pulley, the first pulley is fixedly connected to the second pulley, the center of the first pulley is coaxial with the center of the second pulley, and the plurality of first pulleys are respectively fixedly connected to the central axis at one end of the first roller 325 and the central axis at one end of the third roller 327, two adjacent first pulleys are provided with a first belt, and two adjacent second pulleys are provided with a second belt. The outer side of the first driving box 35 is fixedly connected to the first motor 351, and the output shaft of the first motor 351 penetrates into the first driving box 35, and the output shaft of the first motor 351 is fixedly connected to the center of one of the second pulleys; the first motor 351 drives one of the second pulleys to rotate through the output shaft, and one of the second pulleys drives the first pulley connected to it to rotate, and drives the other second pulleys and the first pulley connected to it to rotate through the first belt and the second belt, thereby driving the first roller 325 and the third roller 327 to rotate.
[0045] The second driving box 36 is provided with multiple third pulleys and fourth pulleys, the third pulley is fixedly connected to the fourth pulley, the center of the third pulley is coaxial with the center of the fourth pulley, and the multiple third pulleys are respectively fixedly connected to the central axis of one end of the second roller 326 and the central axis of one end of the fourth roller 328. The two adjacent third pulleys are provided with a third belt, and the two adjacent fourth pulleys are provided with a fourth belt. The outer side of the second driving box 36 is fixedly connected to the second motor 361, and the output shaft of the second motor 361 penetrates into the second driving box 36, and the output shaft of the second motor 361 is fixedly connected to the center of one of the fourth pulleys; the second motor 361 drives one of the fourth pulleys to rotate through the output shaft, and one of the fourth pulleys drives the third pulley connected thereto to rotate, and drives the other fourth pulleys and the third pulley connected thereto to rotate through the third belt and the fourth belt, thereby driving the second roller 326 and the fourth roller 328 to rotate.
[0046] The first driving box 35 and the second driving box 36 drive the first roller 325, the second roller 326, the third roller 327 and the fourth roller 328 to rotate, so that dust can be evenly attached to the outer sides of the first roller 325, the second roller 326, the third roller 327 and the fourth roller 328.
[0047] Please refer to Figure 4 .
[0048] One end of the slide 37 and one end of the first drive box 35 are fixedly connected to a connecting bracket 381, and two first cylinders 38 are fixedly connected to the outside of the second pipe 32. The two first cylinders 38 are parallel to each other, and the output shafts of the first cylinders 38 are fixedly connected to the connecting bracket 381.
[0049] Since the dust is mixed with concrete dust, the dust will solidify into blocks on the outside of the first roller 325, the outside of the second roller 326, the outside of the third roller 327 and the outside of the fourth roller 328, and the dry dust attached to the unsolidified dust blocks will accelerate their solidification, causing blockage in the second pipe 32. The first driving box 35 and the slide 37 are pushed by the output shaft of the first cylinder 38, and the first roller 325 and the third roller 327 are respectively close to the second roller 326 and the fourth roller 328, so that the dust blocks condensed on the outside of the first roller 325 and the outside of the third roller 327 collide with the dust blocks condensed on the outside of the second roller 326 and the outside of the fourth roller 328, causing the dust blocks to break and fall off, thereby avoiding blockage in the second pipe 32.
[0050] Please refer to Figure 8 .
[0051] The collecting mechanism 3 further includes a third pipe 39, one end of which is connected to the other end of the second pipe 32, and the other end of the third pipe 39 extends above the feed port 11. In this embodiment, the cross-section of the third pipe 39 is preferably obtuse-angled. An air-drying area is provided on the inner wall of the third pipe 39, the air-drying area is close to the other end of the third pipe 39, the air-drying area is located below the other end of the second pipe 32, and the air-drying area is located below the second attachment area.
[0052] Furthermore, two second cylinders 391 are fixedly connected to the outside of the third pipe 39, and the output shafts of the second cylinders 391 pass through the third pipe 39. The output shafts of the two second cylinders 391 are fixedly connected to a rejection plate 382, which is located above the air-drying area.
[0053] When there is less dust in the second pipe 32, the water mist contains too much moisture, which will turn the dust into mud and slide from the outside of the first roller 325, the outside of the second roller 326, the outside of the third roller 327 and the outside of the fourth roller 328 into the air-drying area. At this time, the mud in the air-drying area can also absorb the dust in the third pipe 39. When the mud in the air-drying area solidifies into blocks, the output shaft of the second cylinder 391 pushes the removal plate 382 to shovel the dust blocks in the air-drying area into the feed port 11.
[0054] The utility model provides a concrete crushing device with a dust reduction function. When the crusher crushes concrete and discharges fragments from a discharge port, fine dust is generated. The fine dust is blown into a collecting mechanism by a wind mechanism. The dust enters a second pipe along a first pipe. A spray mechanism sprays water vapor to make the dust heavier and fall and adhere to the first roller and the second roller, thereby preventing the dust generated by the crusher from further spreading. The first drive box drives the first roller to rotate, and the second drive box drives the second roller to rotate, so that the dust can be evenly adhered to the first roller and the second roller.
[0055] Since the dust contains concrete dust, the dust attached to the first roller and the second roller will solidify into dust blocks. The dust that floats into the second pipe continues to adhere to the first roller and the second roller, and the unsolidified dust blocks will accelerate their solidification. The first cylinder pushes the first drive box to slide a certain distance, so that the first roller is close to the second roller, and the solidified concrete blocks on the first roller collide with the solidified dust blocks on the second roller. The collision breaks the two dust blocks and drops them into the feed port of the crusher for secondary crushing, thereby avoiding clogging of the collection mechanism due to excessive dust.
[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.
Claims
1. A concrete crushing device with dust reduction function, comprising a crusher, wherein the top of the crusher is provided with a feed port, and the bottom of the crusher is provided with a discharge port, characterized in that: It also includes collection mechanisms and wind mechanisms; The collection mechanism includes a first pipe, a second pipe and a water storage tank, one end of the first pipe is close to the discharge port, the wind mechanism is directed toward one end of the first pipe, the discharge port is located between one end of the first pipe and the wind mechanism, and the other end of the first pipe is connected to the middle of the second pipe; A spray assembly is provided at one end of the second pipe, and a water pipe is provided on the spray assembly. The water pipe passes through the second pipe and is connected to the water tank; A plurality of first chutes arranged at intervals are provided on both sides of the second pipe, a first drive box is slidably connected to one side of the second pipe, a second drive box is provided on the other side of the second pipe, a plurality of first rollers and a plurality of second rollers are provided in the second pipe, and the plurality of first rollers and the plurality of second rollers are alternately arranged at intervals, the central axes at both ends of the first roller are placed in adjacent first chutes, the central axis at one end of the first roller is rotatably connected to the first drive box, the central axis at one end of the second roller is rotatably connected to the second pipe, the central axis at the other end of the second roller passes through the second pipe and is rotatably connected to the second drive box, a first cylinder is fixedly connected to the outside of the second pipe, the output shaft of the first cylinder is fixedly connected to the first drive box, and the other end of the second pipe is close to the top of the feed port.
2. The concrete crushing device with dust suppression function according to claim 1, characterized in that: A slide is slidably connected in the second drive box, and a plurality of second slide grooves arranged at intervals are provided on the slide. The central axis of the other end of the first roller passes through the second pipe and the second drive box and is rotatably connected to the slide. The central axis of the other end of the second roller is placed in the second slide groove, and one end of the slide passes through the second drive box. One end of the slide and one end of the first drive box are fixedly connected to a connecting bracket, and the output shaft of the first cylinder is fixedly connected to the connecting bracket.
3. The concrete crushing device with dust suppression function according to claim 2, characterized in that: A plurality of third chutes are provided on both sides of the second pipe, and a plurality of third rollers and a plurality of fourth rollers are provided in the second pipe. The plurality of third rollers and the plurality of fourth rollers are alternately arranged, and the third roller and the fourth roller are respectively located below the first roller and the second roller. The central axes at both ends of the third roller are placed in adjacent third chutes, the central axis at one end of the third roller is rotatably connected to the first drive box, and the central axis at the other end of the third roller passes through the second pipe and the second drive box in sequence and is rotatably connected to the slide plate, the central axis at one end of the fourth roller is rotatably connected to the second pipe, and the central axis at the other end of the fourth roller passes through the second pipe and is rotatably connected to the second drive box.
4. A concrete crushing device with dust suppression function as claimed in claim 3, characterized in that: A plurality of fourth sliding grooves are provided on the slide plate, and the central axis of the other end of the fourth roller is placed in the fourth sliding grooves.
5. The concrete crushing device with dust suppression function according to claim 4, characterized in that: The collection mechanism also includes a third pipe, the cross-section of the third pipe is obtuse-angled, one end of the third pipe is connected to the other end of the second pipe, the other end of the third pipe extends above the feed port, and an air-drying area is provided on the inner wall of the third pipe, the air-drying area is close to the other end of the third pipe, and the air-drying area is located below the other end of the second pipe.
6. The concrete crushing device with dust suppression function according to claim 5, characterized in that: A second cylinder is fixedly connected to the outer side of the third pipe, and the output shaft of the second cylinder penetrates the third pipe. The output shaft of the second cylinder is fixedly connected to a rejection plate, and the rejection plate is located above the air-drying area.
7. The concrete crushing device with dust suppression function according to claim 6, characterized in that: The first drive box is provided with a plurality of first pulleys and a second pulley, the first pulley is fixedly connected to the second pulley, the center of the first pulley is coaxial with the center of the second pulley, the plurality of first pulleys are respectively fixedly connected to the central axis at one end of the first roller and the central axis at one end of the third roller, two adjacent first pulleys are provided with a first belt, and two adjacent second pulleys are provided with a second belt, the outer side of the first drive box is fixedly connected to the first motor, the output shaft of the first motor penetrates into the first drive box, and the output shaft of the first motor is fixedly connected to the center of one of the second pulleys.
8. The concrete crushing device with dust suppression function according to claim 7, characterized in that: The second driving box is provided with a plurality of third pulleys and a fourth pulley, the third pulley is fixedly connected to the fourth pulley, the center of the third pulley is coaxial with the center of the fourth pulley, and the plurality of third pulleys are respectively fixedly connected to the central axis at one end of the second roller and the central axis at one end of the fourth roller, and two adjacent third pulleys are provided with a fourth belt, and the outer side of the second driving box is fixedly connected to the second motor, the output shaft of the second motor passes through the second driving box, and the output shaft of the second motor is fixedly connected to the center of one of the fourth pulleys.
9. A concrete crushing device with dust reduction function according to any one of claims 1 to 8, characterized in that: The wind power mechanism includes a bellows and multiple fans. An air inlet and an air outlet are respectively provided at both ends of the bellows. An air duct is provided inside the bellows. The air inlet and the air outlet are connected through the air duct. The bellows is fixedly connected to the bottom of the crusher. The air outlet is close to the discharge port. Multiple fans are arranged at intervals in the air duct.