Building waste crushing device for building construction

Abstract

The invention relates to the technical field of building waste crushing, in particular to a building waste crushing device for building construction, which comprises a shell and a crushing unit, a separation unit is further arranged in the shell, the separation unit is located above the crushing unit, the separation unit comprises a plurality of supporting rods which are arranged in a matrix mode, the supporting rods receive the input construction waste, and a rotating shaft is rotationally arranged in the shell in the width direction of the shell; a plurality of rotating shafts are arranged on the outer shell, a plurality of overturning claws are evenly arranged on the rotating shafts in the axis direction of the rotating shafts, in the width direction of the outer shell, the overturning claws on the same rotating shaft and the supporting rods in the same direction are arranged in a staggered mode, and the multiple rotating shafts are evenly arranged in the length direction of the outer shell. A driving unit used for driving the rotating shaft to rotate is arranged on one side of the rotating shaft, the shell is of a sealed structure, and water is injected into the shell. Plastic films are prevented from entering the crushing unit, and the crushing unit is prevented from being wound by the plastic films.

Description

Technical Field

[0001] The invention relates to the technical field of building waste crushing, and in particular to a building waste crushing device for building construction. Background Art

[0002] Construction waste includes waste bricks and tiles, concrete, waste wood, waste asphalt mixture, etc. In the process of crushing construction waste, people need to manually put the waste into the crusher. During the crushing process, a lot of dust will appear, and the flying dust can be easily inhaled by the staff.

[0003] Chinese patent announcement number CN115069382B discloses a construction waste crushing device for construction, including a mounting frame, a material frame, a first fixed block, a double-shaft motor, a first rotating shaft, a crushing cylinder, a pulley, a conveyor belt, a first gear, a second gear, a protective mechanism and a feeding mechanism. A material frame is connected between the inner sides of the upper parts of the four mounting frames, a first fixed block is installed on the left side of the material frame, a double-shaft motor is connected to the first fixed block, two first rotating shafts are rotatably connected between the front and rear sides of the material frame, a first gear is connected to the front of the first rotating shaft on the left side, a second gear is connected to the front side of the first rotating shaft on the right side, the two gears are meshed with each other, a pulley is installed on the front side of the first rotating shaft on the left side, the pulley is located in front of the first gear, a pulley is also connected to the front side of the output shaft on the front side of the double-shaft motor, a conveyor belt is wound around the two pulleys, crushing cylinders are arranged on the first rotating shaft, the two crushing cylinders are in contact with each other, a protective mechanism is installed on the top of the material frame, and the protective mechanism can cover and protect the material frame.

[0004] The above scheme provides a construction waste crushing device, but plastic bags, plastic films and other covering materials are often mixed in the construction waste. When the construction waste is crushed, the flexible plastic products are easy to entangle the crushing parts in the crushing device, thereby causing damage to the crushing device. Even if no entanglement occurs, the crushed plastic particles are mixed into the crushed construction waste. Since they are difficult to separate, they are easy to affect the subsequent recycling quality. Summary of the invention

[0005] In view of the above-mentioned problems, a construction waste crushing device is provided. By injecting water into the outer shell and making the water level in the outer shell always higher than the circular sweeping area formed by the flip claw, it is ensured that the construction waste can be immersed in the water after falling into the outer shell, thereby avoiding the flying of dust in the construction waste. Moreover, since the crushing unit is located below the separation unit, the entire crushing unit is located underwater. In this way, when the crushing unit crushes the construction waste, there will be no flying of dust. The construction waste is rolled by the flip claw, so that the stones in the construction waste are separated from the plastic film, thereby avoiding the plastic film from entering the crushing unit and avoiding the crushing unit from being entangled by the plastic film.

[0006] In order to solve the problems of the prior art, the present invention provides a construction waste crushing device for construction, comprising a shell, an opening is provided on the upper part of the shell, one end of the opening is a feeding end, a crushing unit for crushing the construction waste is provided in the shell; a separation unit is also provided in the shell, the separation unit is located above the crushing unit, the separation unit comprises a plurality of support rods, the plurality of support rods are arranged in a matrix, the support rods receive the input construction waste, a rotating shaft is rotatably provided in the shell along the width direction of the shell, a plurality of turning claws are evenly provided on the rotating shaft along the axial direction of the rotating shaft, in the width direction of the shell, the turning claws on the same rotating shaft are staggered with the support rods in the same direction, a plurality of rotating shafts are provided, and the plurality of rotating shafts are evenly arranged along the length direction of the shell, a driving unit for driving the rotating shaft to rotate is provided on one side of the rotating shaft, the shell is a sealing structure, water is filled in the shell, a circular sweeping area is formed when the turning claw rotates, the upper side of the circular sweeping area is higher than the upper end of the support rod, and the liquid level in the shell is higher than the upper side height of the circular sweeping area.

[0007] Preferably, the support rods arranged in a matrix form a support end surface for supporting the construction waste, and the support end surface is inclined downward in a horizontal direction from the feeding end of the shell.

[0008] Preferably, a side plate is vertically arranged at the end of the rotating shaft, a lifting groove is opened on the side plate in the vertical direction, a lifting block is movably arranged in the lifting groove in the vertical direction, the rotating shaft is rotatably arranged on the lifting block, and a lifting unit for driving the lifting block to move is arranged at the lower part of the lifting block.

[0009] Preferably, the driving unit includes a lifting wheel rotatably arranged on the lifting block, the lifting wheel is fixedly connected to the end of the rotating shaft, a driving wheel is rotatably arranged on a side plate on one side of the lifting wheel, a first rotating driver for driving the driving wheel is arranged at the end of the driving wheel, the lifting wheel and the driving wheel are arranged in a polygonal structure, a synchronous belt is provided on the outer sleeve of the lifting wheel and the driving wheel, and the synchronous belt is respectively matched with the lifting wheel and the driving wheel for transmission.

[0010] Preferably, the lifting unit includes a pushing block which moves along the length direction of the shell, both ends of the pushing block are provided with chamfers, an extension rod is vertically fixedly arranged at the lower part of the lifting block, the extension rod passes through the bottom of the lifting slot, and the pushing block contacts the bottom end of the extension rod when moving in the horizontal direction, and there is a gap between the lifting block and the lower end of the lifting slot, and a spring is vertically arranged in the gap, and both ends of the spring are fixedly connected to the lower ends of the lifting block and the lifting slot, respectively.

[0011] Preferably, a threaded rod is horizontally rotatably arranged on the moving path of the pushing block, the threaded rod passes through the pushing block and cooperates with the thread of the pushing block, and a second rotary driver for driving the threaded rod to rotate is arranged at the end of the threaded rod.

[0012] Preferably, a blowing unit is provided between the separation unit and the crushing unit. In the vertical direction, the separation unit, the blowing unit and the crushing unit are discharged sequentially. The blowing unit includes a fan arranged on one side of the outer shell. A connecting pipe is provided between the fan and the outer shell. The fan blows outside air into the outer shell through the connecting pipe.

[0013] Preferably, an overflow unit is provided on the side of the shell, the overflow unit includes an overflow port opened on the side wall of the shell, an overflow box is provided on one side of the overflow port, the water level in the shell is higher than the bottom of the overflow port, filter cotton is provided in the overflow box, and the filter cotton is located below the overflow port.

[0014] Preferably, a discharging unit is also provided on one side of the outer shell, and the discharging unit includes a discharging shell arranged on one side of the outer shell, and the lower part of the discharging shell is connected with the lower part of the outer shell, and the crushed construction waste enters the discharging shell, and a spiral blade is vertically rotated in the discharging shell, and a third rotating driver for driving the spiral blade to rotate is provided at the end of the spiral blade, and a discharging port is provided on the upper side of the discharging shell, and a filter groove is provided at the connection between the discharging shell and the outer shell.

[0015] Preferably, the pulverizing unit comprises two pulverizing rollers arranged along the length direction of the shell, and fourth rotation drivers for driving the two pulverizing rollers are respectively provided at the ends of the two pulverizing rollers.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention injects water into the outer shell and makes the water level in the outer shell always higher than the circular sweeping area formed by the flip claws, thereby ensuring that the construction waste can be immersed in water after falling into the outer shell, thereby avoiding the flying of dust in the construction waste. Moreover, since the crushing unit is located below the separation unit, the entire crushing unit is located underwater, so that when the crushing unit crushes the construction waste, there will be no dust flying. The construction waste is rolled by the flip claws, so that the stones in the construction waste are separated from the plastic film, thereby avoiding the plastic film from entering the crushing unit and avoiding the crushing unit from being entangled by the plastic film, thereby ensuring that the construction waste put into the crushing device will not generate much dust, and at the same time, no dust overflow will occur during the crushing process. Since the crushing unit is located in the water, the crushing unit can be cooled down in time during crushing, thereby extending the service life of the crushing unit.

[0017] 2. The lifting block is driven to rise and fall by the lifting unit, so that the rotating shaft arranged on one side of the lifting block can be lifted and lowered in the vertical direction, so that the flipping claw can move in the vertical direction while flipping the construction waste, thereby ensuring that the flipping claw will not get stuck during the rotation process. When driving the rotating shaft to rise and fall, the lifting unit is arranged under the lifting block, so that the second rotary drive in the lifting unit drives the threaded rod to rotate forward or reverse, so that the pushing block lifts the extension rod when passing the lower part of the extension rod, thereby enabling the flipping claw to be lifted and lowered.

[0018] 3. An air blowing unit is arranged on the side wall of the shell. When the flip claw rotates, the air blowing unit is in a continuous operation state, so that the water stored in the shell rolls, ensuring that the separated plastic film can float on the upper layer of the liquid surface, so that the plastic film can be discharged through the overflow unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of a construction waste crushing device for construction of the present invention.

[0020] Figure 2 It is a side view of a construction waste crushing device for construction of the present invention.

[0021] Figure 3 The invention relates to a construction waste crushing device for construction Figure 2 Schematic cross-sectional view at AA in the middle.

[0022] Figure 4 The invention discloses a cutaway stereoscopic schematic diagram of a construction waste crushing device for construction.

[0023] Figure 5 The invention relates to a construction waste crushing device for construction Figure 4 A local enlarged schematic diagram of point B in the middle.

[0024] Figure 6 The invention relates to a construction waste crushing device for construction Figure 4 A partial enlarged schematic diagram of point C in the middle.

[0025] Figure 7 It is a three-dimensional schematic diagram of a construction waste crushing device for construction with the outer shell removed according to the present invention.

[0026] Figure 8 The invention relates to a construction waste crushing device for construction Figure 7 A local enlarged schematic diagram of point D in the middle.

[0027] Fig. 9 It is a three-dimensional schematic diagram of a construction waste crushing device for construction of the present invention with the outer shell and the crushing unit removed.

[0028] Fig.10 The invention relates to a construction waste crushing device for construction Fig. 9 A partial enlarged schematic diagram of point E in the middle.

[0029] The numbers in the figure are: 1. Shell; 2. Separation unit; 21. Flip claw; 22. Support rod; 23. Rotation shaft; 24. Driving unit; 241. First rotary driver; 242. Driving wheel; 243. Lifting wheel; 244. Synchronous belt; 245. Tensioning wheel; 25. Side plate; 251. Lifting slot; 252. Lifting block; 253. Lifting unit; 2531. Push block; 2532. Extension rod; 2533. Spring; 2534. Second rotary driver; 2535. Threaded rod; 26. Blowing unit; 261. Fan; 262. Connecting pipe; 3. Crushing unit; 31. Fourth rotary driver; 32. Crushing roller; 4. Overflow unit; 41. Overflow port; 42. Overflow box; 43. Filter cotton; 5. Discharging unit; 51. Third rotary driver; 52. Spiral blade; 53. Discharging shell; 531. Filter slot. DETAILED DESCRIPTION

[0030] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] Reference Figure 1-Figure 5 and Figure 7 A construction waste crushing device for construction, comprising a shell 1, an opening is arranged at the upper part of the shell 1, one end of the opening is a feeding end, a crushing unit 3 for crushing construction waste is arranged in the shell 1; a separation unit 2 is also arranged in the shell 1, the separation unit 2 is located above the crushing unit 3, the separation unit 2 comprises a plurality of support rods, the plurality of support rods are arranged in a matrix, the support rods receive the input construction waste, a rotating shaft 23 is rotatably arranged in the shell 1 along the width direction of the shell 1, and a plurality of rotating shafts 23 are evenly arranged on the rotating shaft 23 along the axial direction of the rotating shaft 23. The outer shell 1 has a plurality of flip claws 21, and in the width direction of the outer shell 1, the flip claws 21 on the same rotating shaft 23 are arranged alternately with the support rods in the same direction. A plurality of rotating shafts 23 are arranged evenly along the length direction of the outer shell 1. A driving unit 24 for driving the rotating shaft 23 to rotate is provided on one side of the rotating shaft 23. The outer shell 1 is a sealed structure, and water is filled in the outer shell 1. When the flip claws 21 rotate, a circular sweeping area is formed, and the upper side of the circular sweeping area is higher than the upper end of the support rod, and the liquid level in the outer shell 1 is higher than the upper side of the circular sweeping area.

[0032] In the process of crushing construction waste, plastic products are often mixed in the construction waste. This is because in the process of transporting construction raw materials, many construction raw materials are wrapped with plastic film or packaging film for the convenience of transportation when leaving the factory. The above plastic film is soft and light. During the construction process, it is often mixed with construction waste. When the construction waste is crushed, plastic products will be crushed together with the construction waste. If the construction waste is screened before crushing, it is usually necessary to use manual screening, which results in a large workload for the staff, and the construction waste has a lot of dust. Direct manual screening can easily cause the front-line staff to inhale too much dust. At the same time, construction waste will also generate a lot of dust when it is crushed, which is still easy to be inhaled by the surrounding staff.

[0033] In order to avoid the above situation, the crushing device is further optimized so that the crushing device for crushing construction waste can automatically separate the plastic products mixed in the construction waste before crushing. The specific structure and working steps of the separation unit 2 are as follows: The support rods arranged in a matrix form a support end surface for supporting the construction waste. First, the unseparated construction waste is put into the shell 1 from the feeding end of the shell 1. The construction waste here mainly refers to a mixture of stones and plastic films. The stones mixed with plastic products first fall on the matrix end surface formed by multiple support rods. There is a gap between two adjacent support rods. Small stones in the building can directly fall into the crushing unit 3 from the gap, and some large stones are supported by the matrix end surface formed by the support rods. At this time, the plastic products mixed in the construction waste float on the upper layer of the water surface in the shell 1 due to their own light weight. It is worth noting that some plastic films will cover the stones, so the construction waste needs to be turned over to separate the plastic films covering the outside of the stones. In this way, the flip claws 21 arranged alternately with the support rods start to rotate under the drive of the rotating shaft 23. Since there are multiple rotating shafts 23, the directions of the multiple rotating shafts 23 are consistent when rotating. The construction waste on the support rod starts to flip under the action of the flip claws 21. At the same time, when the flip claws 21 are flipping the stones, since most of the stones in the construction waste have edges and corners, the stones with edges and corners can also scratch the plastic film when flipping. In this way, the stones can be quickly separated from the plastic film, and the separated stones continue to roll on the support end surface formed by the support rod. When the stones roll to the side of the support end surface away from the feeding end, the stones fall from the support end surface and fall into the crushing unit 3. After the construction waste falls into the shell 1, water is injected into the shell 1 and the water level in the shell 1 is always higher than the circular sweeping area formed by the flip claw 21, thereby ensuring that the construction waste can be immersed in water after falling into the shell 1, avoiding the flying of dust in the construction waste. Moreover, since the crushing unit 3 is located below the separation unit 2, the entire crushing unit 3 is located underwater, so that when the crushing unit 3 crushes the construction waste, there will be no flying of dust. At the same time, the crushing unit 3 located in the water can be cooled down in time during crushing, thereby improving the service life of the crushing unit 3.

[0034] This not only can automatically separate the plastic film in the construction waste, but also can ensure that the construction waste put into the crushing device will not generate much dust. At the same time, no dust overflow will occur during the crushing process, and the service life of the crushing unit 3 is extended.

[0035] Reference Figure 1-Figure 10 The support rods arranged in a matrix form a support end surface for supporting the construction waste, and the support end surface is inclined downward in a horizontal direction from the feeding end of the shell 1.

[0036] The construction waste that falls on the support end surface gradually rolls under the guidance of the support end surface, and finally falls into the crushing unit 3 from one side of the support end surface to be crushed.

[0037] Reference Figure 8A side plate 25 is vertically arranged at the end of the rotating shaft 23, a lifting groove 251 is opened on the side plate 25 along the vertical direction, a lifting block 252 is movably arranged in the lifting groove 251 along the vertical direction, the rotating shaft 23 is rotatably arranged on the lifting block 252, and a lifting unit 253 for driving the lifting block 252 to move is arranged at the lower part of the lifting block 252.

[0038] The lifting block 252 is driven to rise and fall by the lifting unit 253, so that the rotating shaft 23 arranged on one side of the lifting block 252 can be lifted and lowered in the vertical direction, so that the flipping claw 21 can flip the construction waste and move in the vertical direction at the same time, ensuring that the flipping claw 21 will not get stuck during the rotation process.

[0039] Reference Figure 7 and Figure 8 The driving unit 24 includes a lifting wheel 243 rotatably arranged on a lifting block 252, the lifting wheel 243 is fixedly connected to the end of the rotating shaft 23, a driving wheel 242 is rotatably arranged on the side plate 25 on one side of the lifting wheel 243, a first rotating driver 241 for driving the driving wheel 242 is arranged at the end of the driving wheel 242, the lifting wheel 243 and the driving wheel 242 are arranged in a polygonal structure, and a synchronous belt 244 is provided on the outer sleeve of the lifting wheel 243 and the driving wheel 242, and the synchronous belt 244 is respectively matched with the lifting wheel 243 and the driving wheel 242 for transmission.

[0040] A tensioning wheel 245 is provided on one side of the synchronous belt 244 to press the synchronous belt 244. By providing the tensioning wheel 245, when the lifting wheel 243 is lifted and lowered along with the lifting block 252, the wrap angle between the synchronous belt 244 and the lifting wheel 243 is always not zero, which also ensures smooth transmission between the synchronous belt 244 and the lifting wheel 243. The first rotary driver 241 is preferably a servo motor. Before feeding, the first rotary driver 241 is started, and the first rotary driver 241 drives the driving wheel 242. Under the drive of the synchronous belt 244, the lifting wheel 243 drives the rotating shaft 23 to rotate. At the same time, under the action of the tensioning wheel 245, the lifting wheel 243 can also stably drive the rotating shaft 23 to rotate during the lifting and lowering process of the lifting block 252.

[0041] Reference Fig. 9 and Fig.10The lifting unit 253 includes a pushing block 2531 which moves along the length direction of the shell 1. Both ends of the pushing block 2531 are provided with chamfers. An extension rod 2532 is vertically fixedly arranged at the lower part of the lifting block 252. The extension rod 2532 passes through the bottom of the lifting slot 251. When the pushing block 2531 moves in the horizontal direction, it contacts the bottom end of the extension rod 2532. There is a gap between the lifting block 252 and the lower end of the lifting slot 251. A spring 2533 is vertically arranged in the gap. Both ends of the spring 2533 are fixedly connected to the lower ends of the lifting block 252 and the lifting slot 251, respectively.

[0042] Reference Fig. 9 and Fig.10 A threaded rod 2535 is horizontally rotatably arranged on the moving path of the pushing block 2531. The threaded rod 2535 passes through the pushing block 2531 and is threadably matched with the pushing block 2531. A second rotating driver 2534 is arranged at the end of the threaded rod 2535 for driving the threaded rod 2535 to rotate.

[0043] When the flip claw 21 rotates, the second rotation driver 2534 is started synchronously with the first rotation driver 241. The second rotation driver 2534 is preferably a servo motor. The second rotation driver 2534 drives the pushing block 2531 to move in the horizontal direction. During the horizontal movement of the pushing block 2531, the bottom of the extension rod 2532 is pushed, so that the extension rod 2532 rises in the vertical direction. At this time, the spring 2533 is gradually stretched. After the pushing block 2531 passes the extension rod 2532, the extension rod 2532 drops again under the dual action of its own gravity and the reset elastic force of the spring 2533. The second rotation driver 2534 drives the threaded rod 2535 to rotate forward or reversely, so that the pushing block 2531 moves back and forth in the horizontal direction. In this way, the effect of lifting the rotating shafts 23 arranged along the length direction of the shell 1 in sequence is achieved, thereby avoiding the situation where the flip claw 21 is stuck with construction waste during the flipping of the flip claw 21.

[0044] Reference Figure 2 and Figure 4 : A blowing unit 26 is arranged between the separation unit 2 and the crushing unit 3. In the vertical direction, the separation unit 2, the blowing unit 26 and the crushing unit 3 are discharged in sequence. The blowing unit 26 includes a fan 261 arranged on one side of the outer shell 1. A connecting pipe 262 is arranged between the fan 261 and the outer shell 1. The fan 261 blows external air into the outer shell 1 through the connecting pipe 262.

[0045] During the flipping process of the flip claw 21, the fan 261 is started at the same time. The fan 261 blows the outside air into the shell 1 through the connecting pipe 262. The air entering the shell 1 can only move from bottom to top. The air continuously pouring into the shell 1 drives the water in the shell 1 to roll. The stones in the construction waste are heavy and will not be affected by the rising air. The plastic film is light, and the rising air can lift the floating plastic film, so that the plastic film is always located at the upper water level.

[0046] Reference Figure 1-Figure 4 An overflow unit 4 is arranged on the side of the shell 1, and the overflow unit 4 includes an overflow port 41 opened on the side wall of the shell 1, and an overflow box 42 is arranged on one side of the overflow port 41. The water level in the shell 1 is higher than the bottom of the overflow port 41, and a filter cotton 43 is arranged in the overflow box 42, and the filter cotton 43 is located below the overflow port 41.

[0047] Under the action of the blowing unit 26, the plastic film keeps rolling with the water in the shell 1, and the rolling plastic film overflows through the overflow port 41 and enters the overflow box 42. The plastic film is intercepted by the filter cotton 43 in the overflow box 42, and the staff can regularly clean out the plastic film on the top of the filter cotton 43.

[0048] Reference Figure 3 , Figure 4 and Figure 6 A discharging unit 5 is also provided on one side of the outer shell 1, and the discharging unit 5 includes a discharging shell 53 provided on one side of the outer shell 1, and the lower part of the discharging shell 53 is connected with the lower part of the outer shell 1, and the crushed construction waste enters the discharging shell 53, and a spiral blade 52 is vertically rotated in the discharging shell 53, and a third rotating driver 51 for driving the spiral blade 52 to rotate is provided at the end of the spiral blade 52, and a discharging port is provided on the upper side of the discharging shell 53, and a filter groove 531 is provided at the connection between the discharging shell 53 and the outer shell 1.

[0049] After the crushed construction waste enters the discharge shell 53, the third rotary driver 51 drives the spiral blade 52 to rotate. The third rotary driver 51 is preferably a servo motor, so that the crushed construction waste can be discharged in time. It is also worth noting that a filter groove 531 is provided between the discharge shell 53 and the outer shell 1. In this way, when the construction waste is lifted, the moisture in the construction waste can flow back to the outer shell 1 through the filter groove 531, thereby avoiding excessive overflow of water in the outer shell 1.

[0050] Reference Figure 4 The pulverizing unit 3 comprises two pulverizing rollers 32 arranged along the length direction of the housing 1 , and fourth rotation drivers 31 for driving the two pulverizing rollers 32 are respectively provided at the ends of the two pulverizing rollers 32 .

[0051] The two crushing rollers 32 rotate towards each other, and the fourth rotation driver 31 is preferably a servo motor.

[0052] Working principle: First, the unseparated construction waste is thrown into the shell 1 from the feeding end of the shell 1. The construction waste here mainly refers to a mixture of stones and plastic films. The stones mixed with plastic products first fall on the matrix end face formed by multiple support rods. There is a gap between two adjacent support rods. The small stones in the construction can directly fall into the crushing unit 3 from the gap, and some large stones are supported by the matrix end face formed by the support rods. At this time, the plastic products mixed in the construction waste float on the upper layer of the water surface in the shell 1 due to their own light weight.

[0053] It is worth noting that some plastic films will cover the stones, so the construction waste needs to be turned over to separate the plastic films covering the outside of the stones. In this way, the flip claws 21 arranged alternately with the support rods start to rotate under the drive of the rotating shaft 23. Since there are multiple rotating shafts 23, the directions of the multiple rotating shafts 23 are consistent when rotating. The construction waste on the support rod starts to flip under the action of the flip claws 21. At the same time, when the flip claws 21 are flipping the stones, since most of the stones in the construction waste have edges and corners, the stones with edges and corners can also scratch the plastic film when flipping. In this way, the stones can be quickly separated from the plastic film, and the separated stones continue to roll on the support end surface formed by the support rod. When the stones roll to the side of the support end surface away from the feeding end, the stones fall from the support end surface and fall into the crushing unit 3.

[0054] After the construction waste falls into the shell 1, water is injected into the shell 1 and the water level in the shell 1 is always higher than the circular sweeping area formed by the flip claw 21, thereby ensuring that the construction waste can be immersed in water after falling into the shell 1, avoiding the flying of dust in the construction waste. Moreover, since the crushing unit 3 is located below the separation unit 2, the entire crushing unit 3 is located underwater. In this way, when the crushing unit 3 crushes the construction waste, there will be no flying of dust. At the same time, the crushing unit 3 located in the water can be cooled down in time during the crushing.

[0055] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the protection scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A construction waste crushing device for use in construction, comprising a housing (1), the upper portion of the housing (1) being provided with an opening, one end of the opening being a feeding end, and a crushing unit (3) for crushing construction waste being provided in the housing (1); It is characterized in that A separation unit (2) is also provided in the housing (1). The separation unit (2) is located above the crushing unit (3). The separation unit (2) comprises a plurality of support rods arranged in a matrix. The support rods receive the input construction waste. A rotating shaft (23) is provided in the housing (1) to rotate along the width direction of the housing (1). A plurality of turning claws (21) are evenly provided on the rotating shaft (23) along the axial direction of the rotating shaft (23). In the width direction of the housing (1), the turning claws (21) on the same rotating shaft (23) are arranged to rotate along the width direction of the housing (1). 1) are arranged in a staggered manner with support rods in the same direction, a plurality of rotating shafts (23) are provided, the plurality of rotating shafts (23) are evenly arranged along the length direction of the housing (1), a driving unit (24) for driving the rotating shaft (23) to rotate is provided on one side of the rotating shaft (23), the housing (1) is a sealed structure, water is filled in the housing (1), a circular sweeping area is formed when the flip claw (21) rotates, the upper side of the circular sweeping area is higher than the upper end of the support rod, and the liquid level in the housing (1) is higher than the upper side of the circular sweeping area.

2. A construction waste crushing device for construction according to claim 1, characterized in that: The support rods arranged in a matrix form a support end surface for supporting the construction waste, and the support end surface is inclined downward from the feeding end of the outer shell (1).

3. The construction waste crushing device for construction according to claim 1, characterized in that: A side plate (25) is vertically arranged at the end of the rotating shaft (23); a lifting groove (251) is provided on the side plate (25) in a vertical direction; a lifting block (252) is slidably arranged in the vertical direction in the lifting groove (251); the rotating shaft (23) is rotatably arranged on the lifting block (252); and a lifting unit (253) for driving the lifting block (252) to move is arranged at the bottom of the lifting block (252).

4. A construction waste crushing device for construction according to claim 3, characterized in that: The driving unit (24) comprises a lifting wheel (243) rotatably arranged on a lifting block (252); the lifting wheel (243) is fixedly connected to the end of a rotating shaft (23); a driving wheel (242) is rotatably arranged on a side plate (25) on one side of the lifting wheel (243); a first rotating driver (241) for driving the driving wheel (242) is arranged at the end of the driving wheel (242); the lifting wheel (243) and the driving wheel (242) are arranged in a polygonal structure; a synchronous belt (244) is provided on the outer periphery of the lifting wheel (243) and the driving wheel (242); and the synchronous belt (244) is respectively matched with the lifting wheel (243) and the driving wheel (242) in transmission.

5. The construction waste crushing device for construction according to claim 3, characterized in that: The lifting unit (253) comprises a pushing block (2531) which moves along the length direction of the housing (1). Both ends of the pushing block (2531) are provided with chamfers. An extension rod (2532) is vertically fixedly arranged at the lower part of the lifting block (252). The extension rod (2532) passes through the bottom of the lifting slot (251). When the pushing block (2531) moves in the horizontal direction, it contacts the bottom end of the extension rod (2532). There is a gap between the lifting block (252) and the lower end of the lifting slot (251). A spring (2533) is vertically arranged in the gap. Both ends of the spring (2533) are fixedly connected to the lower ends of the lifting block (252) and the lifting slot (251), respectively.

6. A construction waste crushing device for construction according to claim 5, characterized in that: A threaded rod (2535) is horizontally rotatably arranged on the moving path of the pushing block (2531); the threaded rod (2535) passes through the pushing block (2531) and is threadably engaged with the pushing block (2531); and a second rotary driver (2534) for driving the threaded rod (2535) to rotate is arranged at the end of the threaded rod (2535).

7. The construction waste crushing device for construction according to claim 1, characterized in that: An air blowing unit (26) is provided between the separation unit (2) and the crushing unit (3); in the vertical direction, the separation unit (2), the air blowing unit (26) and the crushing unit (3) are discharged in sequence; the air blowing unit (26) comprises a fan (261) provided on one side of the housing (1); a connecting pipe (262) is provided between the fan (261) and the housing (1); the fan (261) blows outside air into the housing (1) through the connecting pipe (262).

8. The construction waste crushing device for construction according to claim 1, characterized in that: An overflow unit (4) is arranged on the side of the housing (1), the overflow unit (4) comprising an overflow port (41) opened on the side wall of the housing (1), an overflow box (42) is arranged on one side of the overflow port (41), the water level in the housing (1) is higher than the bottom of the overflow port (41), a filter cotton (43) is arranged in the overflow box (42), and the filter cotton (43) is located below the overflow port (41).

9. The construction waste crushing device for construction according to claim 1, characterized in that: A discharge unit (5) is also provided on one side of the outer shell (1). The discharge unit (5) comprises a discharge shell (53) provided on one side of the outer shell (1). The lower portion of the discharge shell (53) is communicated with the lower portion of the outer shell (1). The crushed construction waste enters the discharge shell (53). A spiral blade (52) is vertically rotatably provided in the discharge shell (53). A third rotary driver (51) for driving the spiral blade (52) to rotate is provided at the end of the spiral blade (52). A discharge port is provided on the upper side of the discharge shell (53). A filter groove (531) is provided at the connection between the discharge shell (53) and the outer shell (1).

10. The construction waste crushing device for construction according to claim 1, characterized in that: The pulverizing unit (3) comprises two pulverizing rollers (32) arranged along the length direction of the housing (1), and fourth rotation drivers (31) for driving the two pulverizing rollers (32) are respectively provided at the ends of the two pulverizing rollers (32).

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