Construction waste crushing device for construction

Abstract

The application 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 and is located above the crushing unit; the separation unit comprises a plurality of support rods and is arranged in a matrix; the support rods support the input building waste; a rotating shaft is rotatably arranged in the shell along the width direction of the shell; a plurality of turnover claws are uniformly arranged on the rotating shaft along the axis direction of the rotating shaft; along the width direction of the shell, the turnover claws on the same rotating shaft are staggered with the support rods in the same direction; a plurality of rotating shafts are arranged; the rotating shafts are uniformly arranged along the length direction of the shell; a driving unit for driving the rotating shaft to rotate is arranged on one side of the rotating shaft; the shell is a sealed structure; and water is injected into the shell. The application avoids the plastic film from entering the crushing unit and avoids the crushing unit from being wound by the plastic film.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of building waste crushing, in particular to a building waste crushing device for building construction. BACKGROUND

[0002] Building waste includes waste bricks, concrete, waste wood, waste asphalt mixture and the like, in the process of crushing the building waste, the waste needs to be manually put into a crusher, and a lot of dust is generated in the crushing process, which is easy to be inhaled by workers.

[0003] Chinese Patent Publication No. CN115069382B discloses a building waste crushing device for building construction, which comprises a mounting frame, a material frame, a first fixed block, a double-shaft motor, a first rotating shaft, a crushing cylinder, a belt pulley, a conveyor belt, a first gear, a second gear, a protection mechanism and a feeding mechanism. The material frame is connected between the inner sides of the upper parts of the four mounting frames, the first fixed block is installed on the left side of the material frame, the 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, the first rotating shaft on the left side is connected with the first gear at the front part, the first rotating shaft on the right side is connected with the second gear at the front side, the two gears are meshed with each other, the first rotating shaft on the left side is provided with the belt pulley at the front side, the belt pulley is located at the front side of the first gear, the output shaft of the double-shaft motor is also provided with the belt pulley at the front side, the conveyor belt is wound around the two belt pulleys, the crushing cylinders are arranged on the first rotating shafts and are in contact with each other, and the protection mechanism is installed on the top of the material frame and can cover and protect the material frame.

[0004] The above-mentioned scheme provides a building waste crushing device, but plastic bags, plastic films and other wrapping materials are often mixed in the building waste, and the flexible plastic products are easy to wrap the crushing components in the crushing device when the building waste is crushed, thereby causing damage to the crushing device. Even if no wrapping occurs, the plastic particles after being crushed are mixed into the crushed building waste, which is not easy to separate and can affect the quality of subsequent recycling. SUMMARY

[0005] In view of the above problems, a building waste crushing device for building construction is provided, which injects water into the shell and keeps the water level in the shell always higher than the circular sweeping area formed by the turnover claw, so as to ensure that the building waste can be immersed in water after falling into the shell, avoid dust flying in the building waste, and since the crushing unit is located below the separation unit, the entire crushing unit is located underwater, so that the crushing unit will not have dust flying when crushing the building waste. The turnover claw rolls the building waste, so that the stones in the building waste are separated from the plastic film, avoiding the plastic film entering the crushing unit and avoiding the crushing unit being wrapped by the plastic film.

[0006] In order to solve the prior art problems, the building garbage crushing device for building construction is provided, which comprises a shell, an opening is arranged at the upper portion of the shell, one end of the opening is a feeding end, a crushing unit for crushing the building garbage is arranged in the shell; 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 support rods, the plurality of support rods are arranged in a matrix, the support rods support the building garbage, a rotating shaft is rotatably arranged in the shell along the width direction of the shell, a plurality of turnover claws are uniformly arranged on the rotating shaft along the axis direction of the rotating shaft, the turnover claws on the same rotating shaft are staggered with the support rods in the same direction along the width direction of the shell, a plurality of rotating shafts are arranged, the plurality of rotating shafts are uniformly arranged along the length direction of the shell, a driving unit for driving the rotating shaft to rotate is arranged on one side of the rotating shaft, the shell is a sealed structure, water is injected into the shell, the turnover claws form a circular sweeping area when rotating, 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 height of the upper side of the circular sweeping area.

[0007] Preferably, the support rods arranged in a matrix form a support end face for supporting the building garbage, and the support end face is inclined downward along the 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 formed in the vertical direction on the side plate, 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 portion of the lifting block.

[0009] Preferably, the driving unit comprises a lifting wheel rotatably arranged on the lifting block, the lifting wheel is fixedly connected with the end of the rotating shaft, a driving wheel is rotatably arranged on the side plate on one side of the lifting wheel, a first rotary driver is arranged at the end of the driving wheel for driving the driving wheel, the lifting wheel and the driving wheel are arranged in a polygonal structure, a synchronous belt is sleeved on the periphery of the lifting wheel and the driving wheel, and the synchronous belt is in transmission cooperation with the lifting wheel and the driving wheel respectively.

[0010] Preferably, the lifting unit comprises a pushing block moving along the length direction of the shell, chamfers are formed at both ends of the pushing block, an extension rod is vertically and fixedly arranged at the lower portion of the lifting block, the extension rod penetrates the bottom of the lifting groove, the pushing block is in contact with the bottom end of the extension rod when moving in the horizontal direction, there is a gap between the lifting block and the lower end of the lifting groove, a spring is vertically arranged in the gap, and the two ends of the spring are fixedly connected with the lifting block and the lower end of the lifting groove respectively.

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

[0012] Preferably, a blowing unit is arranged between the separating unit and the crushing unit, the separating unit, the blowing unit and the crushing unit are arranged in sequence in the vertical direction, the blowing unit comprises a fan arranged at one side of the shell, and a connecting pipe is arranged between the fan and the shell, and the fan blows external air into the shell through the connecting pipe.

[0013] Preferably, an overflow unit is arranged at the side of the shell, the overflow unit comprises an overflow opening arranged on the side wall of the shell, an overflow box is arranged at one side of the overflow opening, the water level in the shell is higher than the bottom of the overflow opening, and filter cotton is arranged in the overflow box and located below the overflow opening.

[0014] Preferably, a discharging unit is further arranged at one side of the shell, the discharging unit comprises a discharging shell arranged at one side of the shell, the lower part of the discharging shell is in communication with the lower part of the shell, the crushed construction waste enters the discharging shell, a spiral blade is vertically arranged in the discharging shell, the end of the spiral blade is provided with a third rotary driver for driving the spiral blade to rotate, a discharging opening is arranged at the upper side of the discharging shell, and a filter groove is arranged at the connection between the discharging shell and the shell.

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

[0016] The present application has the following beneficial effects compared with the prior art:

[0017] 1、The present application injects water into the shell, and keeps the water level in the shell higher than the circular sweeping area formed by the turnover claw, so that the construction waste can be immersed in water after falling into the shell, dust in the construction waste is avoided, the crushing unit is located below the separating unit, the whole crushing unit is located underwater, so that dust is not scattered when the crushing unit crushes the construction waste, the turnover claw rolls the construction waste, so that the stones in the construction waste are separated from the plastic film, the plastic film is prevented from entering the crushing unit, the crushing unit is prevented from being wound by the plastic film, the construction waste put into the crushing device will not produce much dust, dust will not overflow during crushing, the crushing unit can be cooled in time during crushing because the crushing unit is located in water, and the service life of the crushing unit is prolonged.

[0018] 2. The lifting unit drives the lifting block to lift, realizes the lifting of the rotating shaft arranged on one side of the lifting block along the vertical direction, realizes the movement of the turnover claw along the vertical direction while the turnover claw is turning, ensures that the turnover claw will not be blocked during the turning process, and when the rotating shaft is lifted, the lifting unit is arranged below the lifting block, the second rotating driver in the lifting unit drives the threaded rod to rotate forward or reversely, and then the extension rod is lifted when the pushing block passes through the lower part of the extension rod, so that the turnover claw is lifted.

[0019] 3. The gas blowing unit is arranged on the side wall of the shell, and the gas blowing unit is in a continuous running state when the turnover claw is turning, so that the water stored in the shell is stirred, and the plastic film separated is ensured to float on the upper layer of the liquid surface, so that the plastic film is discharged through the overflow unit. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a three-dimensional schematic view of a building waste crushing device for building construction.

[0021] Figure 2 is a side view of a building waste crushing device for building construction.

[0022] Figure 3 is a three-dimensional schematic view of a building waste crushing device for building construction. Figure 2 is a sectional view of A-A.

[0023] Figure 4 is a sectional view of A-A.

[0024] Figure 5 is a sectional view of A-A. Figure 4 is a local enlarged view of B.

[0025] Figure 6 is a local enlarged view of C. Figure 4 is a local enlarged view of C.

[0026] Figure 7 is a three-dimensional schematic view of a building waste crushing device for building construction.

[0027] Figure 8 is a local enlarged view of D. Figure 7 is a local enlarged view of D.

[0028] Figure 9 is a three-dimensional schematic view of a building waste crushing device for building construction.

[0029] Figure 10 The application discloses a building garbage crushing device for building construction Figure 9 The local enlarged schematic view of E in the figure.

[0030] The figure labels are as follows:

[0031] 1, shell; 2, separation unit; 21, turnover claw; 22, support rod; 23, rotating shaft; 24, driving unit; 241, first rotary driver; 242, driving wheel; 243, lifting wheel; 244, synchronous belt; 245, tension pulley; 25, side plate; 251, lifting groove; 252, lifting block; 253, lifting unit; 2531, pushing block; 2532, extension rod; 2533, spring; 2534, second rotary driver; 2535, threaded rod; 26, air 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 groove. DETAILED DESCRIPTION

[0032] In order to further understand the features, technical means and specific purposes and functions achieved by the application, the application will be further described in detail below in combination with the drawings and specific embodiments.

[0033] Reference Figures 1-5 and Figure 7 The application discloses a building garbage crushing device for building construction, which comprises a shell 1, the upper part of the shell 1 is provided with an opening, one end of the opening is a feeding end, and a crushing unit 3 for crushing building garbage is arranged in the shell 1; a separation unit 2 is further 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 support the building garbage, a rotating shaft 23 is rotatably arranged in the shell 1 along the width direction of the shell 1, a plurality of turnover claws 21 are uniformly arranged on the rotating shaft 23 along the axis direction of the rotating shaft 23, the turnover claws 21 on the same rotating shaft 23 are staggered with the support rods in the same direction along the width direction of the shell 1, a plurality of rotating shafts 23 are arranged, the plurality of rotating shafts 23 are uniformly arranged along the length direction of the shell 1, a driving unit 24 for driving the rotating shaft 23 to rotate is arranged on one side of the rotating shaft 23, the shell 1 is a sealed structure, water is injected into the shell 1, the turnover claws 21 form a circular sweeping area when rotating, 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 1 is higher than the upper side height of the circular sweeping area.

[0034] In the process of crushing construction waste, plastic products are often mixed in construction waste, because in the process of transporting building materials, many building materials are coated with plastic film or packaging film on the outside of the building materials for easy transportation. The above plastic film is soft and light in quality. In the process of construction, it is often mixed with construction waste. When crushing construction waste, plastic products may be crushed with construction waste. If the construction waste is screened before crushing, manual screening is usually required, which results in a large amount of work for the workers, and the construction waste dust is more, and the direct manual screening of the workers is easy to inhale too much dust. At the same time, a large amount of dust is also generated when the construction waste is crushed, which is still easy to be inhaled by the surrounding workers.

[0035] 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:

[0036] The matrix-arranged support rods form a support end face for supporting the construction waste. First, the construction waste without separation is put into the shell 1 from the feeding end of the shell 1. The construction waste here mainly refers to the mixture of stone blocks and plastic film. The stone blocks mixed with plastic products first fall on the matrix end face formed by the plurality of support rods. There is a gap between two adjacent support rods. Small stone blocks in the construction can directly fall into the crushing unit 3 from the gap. Part of the large stone blocks 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. It is worth noting that part of the plastic film will wrap the stone blocks. Therefore, the construction waste needs to be turned over to make the plastic film wrapped outside the stone blocks separate. Therefore, the turnover claws 21 arranged alternately with the support rods start to rotate under the drive of the rotating shaft 23. Since the rotating shaft 23 is provided with a plurality of rotating shafts 23, the plurality of rotating shafts 23 rotate in the same direction. The construction waste on the support rods starts to turn over under the action of the turnover claws 21. At the same time, the turnover claws 21 can also cut the plastic film when turning over the stone blocks due to the fact that the stone blocks in the construction waste are mostly angular. Therefore, the stone blocks can be quickly separated from the plastic film. The separated stone blocks continue to roll on the support end face formed by the support rods. When the stone blocks roll to the side of the support end face away from the feeding end, the stone blocks fall from the support end face 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 turnover claws 21. It is ensured that the construction waste can be immersed in water after falling into the shell 1, avoiding the flying dust in the construction waste. Since the crushing unit 3 is located below the separation unit 2, the entire crushing unit 3 is located underwater. Therefore, the crushing unit 3 will not appear the condition of dust flying when crushing the construction waste. At the same time, the crushing unit 3 in the water can be cooled in time when crushing, improving the service life of the crushing unit 3.

[0037] Therefore, not only can the plastic film in the construction waste be automatically separated, but also the construction waste put into the crushing device can not produce much dust. At the same time, there will be no dust overflow during the crushing process, and the service life of the crushing unit 3 is also prolonged.

[0038] Reference Figures 1-10 The matrix-arranged support rods form a support end face for supporting the construction waste. The support end face is inclined downward along the horizontal direction from the feeding end of the shell 1.

[0039] The construction waste falling on the support end face gradually rolls and moves under the guidance of the support end face, and finally falls into the crushing unit 3 from one side of the support end face.

[0040] Reference Figure 8The side plate 25 is vertically arranged at the end of the rotating shaft 23, the lifting groove 251 is vertically arranged on the side plate 25, the lifting block 252 is vertically movably arranged in the lifting groove 251, the rotating shaft 23 is rotatably arranged on the lifting block 252, and the lifting unit 253 for driving the lifting block 252 to move is arranged at the lower part of the lifting block 252.

[0041] The lifting block 252 is lifted by the lifting unit 253, the rotating shaft 23 rotatably arranged on one side of the lifting block 252 is lifted along the vertical direction, the turnover claw 21 can move along the vertical direction while turning the construction waste, and the turnover claw 21 will not be blocked during rotation.

[0042] Referring to Figure 7 and Figure 8 The driving unit 24 comprises the lifting wheel 243 rotatably arranged on the lifting block 252, the lifting wheel 243 is fixedly connected with the end of the rotating shaft 23, the driving wheel 242 is rotatably arranged on the side plate 25 on one side of the lifting wheel 243, the first rotary 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, the synchronous belt 244 is sleeved on the periphery of the lifting wheel 243 and the driving wheel 242, and the synchronous belt 244 is in transmission cooperation with the lifting wheel 243 and the driving wheel 242.

[0043] The tensioning wheel 245 for pressing the synchronous belt 244 is arranged on one side of the synchronous belt 244, the angle between the synchronous belt 244 and the lifting wheel 243 is always not zero when the lifting wheel 243 is lifted with the lifting block 252, and the synchronous belt 244 and the lifting wheel 243 are smoothly transmitted. The first rotary driver 241 is preferably a servo motor, the first rotary driver 241 is started before feeding, the driving wheel 242 is driven by the first rotary driver 241, the lifting wheel 243 drives the rotating shaft 23 to rotate under the driving of the synchronous belt 244, and the lifting block 252 can stably drive the rotating shaft 23 to rotate in the lifting process under the action of the tensioning wheel 245.

[0044] Referring to Figure 9 and Figure 10The lifting unit 253 comprises a pushing block 2531 moving 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 fixed at the lower part of the lifting block 252, the extension rod 2532 penetrates the bottom of the lifting groove 251, the pushing block 2531 is in contact with the bottom end of the extension rod 2532 when moving along the horizontal direction, the lifting block 252 and the lower end of the lifting groove 251 have a gap, a spring 2533 is vertically arranged in the gap, both ends of the spring 2533 are fixedly connected with the lifting block 252 and the lower end of the lifting groove 251 respectively.

[0045] With reference to Figure 9 And Figure 10 A threaded rod 2535 is horizontally rotatably arranged on the moving path of the pushing block 2531, the threaded rod 2535 penetrates the pushing block 2531 and is threadedly matched with the pushing block 2531, a second rotary driver 2534 for driving the threaded rod 2535 to rotate is arranged at the end of the threaded rod 2535.

[0046] When the turnover claw 21 rotates, the second rotary driver 2534 is synchronously started with the first rotary driver 241, the second rotary driver 2534 is preferably a servo motor, the second rotary driver 2534 drives the pushing block 2531 to move along the horizontal direction, the bottom of the extension rod 2532 is jolted in the process that the pushing block 2531 moves along the horizontal direction, so that the extension rod 2532 rises along the vertical direction, at this time, the spring 2533 is gradually stretched, when the pushing block 2531 passes the extension rod 2532, the extension rod 2532 again falls under the double actions of its own gravity and the reset elastic force of the spring 2533, the second rotary driver 2534 drives the threaded rod 2535 to rotate forward or reversely, so that the pushing block 2531 reciprocally moves along the horizontal direction, thus the effect that the rotating shafts 23 arranged along the length direction of the shell 1 are sequentially lifted is realized, and the situation that the turnover claw 21 is stuck by the construction waste in the process that the turnover claw 21 turns over the construction waste is avoided.

[0047] With reference to Figure 2 And Figure 4 A blowing unit 26 is arranged between the separating unit 2 and the crushing unit 3, in the vertical direction, the separating unit 2, the blowing unit 26 and the crushing unit 3 are sequentially arranged, the blowing unit 26 comprises a fan 261 arranged at one side of the shell 1, a connecting pipe 262 is arranged between the fan 261 and the shell 1, the fan 261 blows the external air into the shell 1 through the connecting pipe 262.

[0048] In the process of turning over the turning claw 21, the fan 261 is started at the same time, the fan 261 blows the air outside into the shell 1 through the connecting pipe 262, the air entering the shell 1 can only move from bottom to top, so the air continuously flowing into the shell 1 drives the water in the shell 1 to roll, the stone in the construction waste is not affected by the rising air because of its heavy weight, and the plastic film is light in quality, the rising air can hold the floating plastic film, so that the plastic film is always located at the upper water level.

[0049] Referring to Figures 1-4 : An overflow unit 4 is arranged on the side of the shell 1, the overflow unit 4 comprises an overflow port 41 arranged on the side wall of the shell 1, 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 filter cotton 43 is arranged in the overflow box 42 and located below the overflow port 41.

[0050] Under the action of the air blowing unit 26, the plastic film rolls with the water in the shell 1, the plastic film in the rolling is overflowed 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 plastic film on the upper part of the filter cotton 43 can be cleaned out regularly.

[0051] Referring to Figure 3 , Figure 4 and Figure 6 : An outlet unit 5 is further arranged on one side of the shell 1, the outlet unit 5 comprises an outlet shell 53 arranged on one side of the shell 1, the lower part of the outlet shell 53 is communicated with the lower part of the shell 1, the construction waste after being crushed enters the outlet shell 53, a spiral blade 52 is vertically arranged in the outlet shell 53, the end of the spiral blade 52 is provided with a third rotary driver 51 for driving the spiral blade 52 to rotate, an outlet port is arranged on the upper side of the outlet shell 53, and a filter groove 531 is arranged at the connection position of the outlet shell 53 and the shell 1.

[0052] After the construction waste after being crushed enters the outlet 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 construction waste after being crushed can be discharged in time, and it is worth noting that the filter groove 531 is arranged between the outlet shell 53 and the shell 1, so that the water in the construction waste can flow back to the shell 1 in the process of being lifted, thereby avoiding the situation that too much water in the shell 1 overflows.

[0053] Referring to Figure 4 : The crushing unit 3 comprises two crushing rollers 32 arranged along the length direction of the shell 1, and the ends of the two crushing rollers 32 are respectively provided with fourth rotary drivers 31 for driving the two crushing rollers 32.

[0054] The two crushing rollers 32 rotate towards each other, and the fourth rotary driver 31 is preferably a servo motor.

[0055] Working principle: firstly, the construction waste which has not been separated is put into the shell 1 from the feeding end of the shell 1, and the construction waste herein mainly refers to the mixture of stone blocks and plastic films, the stone blocks mixed with plastic products first fall on the matrix end face formed by a plurality of support rods, there is a gap between two adjacent support rods, the small stone blocks in the construction can directly fall into the crushing unit 3 from the gap, and part of the large stone blocks 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.

[0056] It is worth noting that part of the plastic film will wrap the stone blocks, so the construction waste needs to be turned over to make the plastic film wrapped outside the stone blocks separate, so the turnover claw 21 staggered with the support rods starts to rotate under the driving of the rotating shaft 23, since a plurality of rotating shafts 23 are provided, the directions of the rotating shafts 23 are consistent when rotating, and the construction waste on the support rods starts to turn over under the action of the turnover claw 21, at the same time, the turnover claw 21 can also cut the plastic film when turning over the stone blocks due to the fact that the stone blocks in the construction waste are mostly angular, so the stone blocks can be quickly separated from the plastic film, and the separated stone blocks continue to roll on the support end face formed by the support rods, when the stone blocks roll to the side away from the feeding end of the support end face, the stone blocks fall from the support end face and fall into the crushing unit 3.

[0057] 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 turnover claw 21, which ensures that the construction waste can be immersed in water after falling into the shell 1, avoiding dust flying in the construction waste, and since the crushing unit 3 is located below the separation unit 2, the entire crushing unit 3 is located underwater, so the crushing unit 3 will not appear dust flying when crushing the construction waste, and the crushing unit 3 located in the water can also be cooled in time when crushing.

[0058] The above embodiments only express one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the protection scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A construction waste crushing device for building construction, comprising a shell (1), an opening is arranged at the upper portion 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); characterized in that 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 support the construction waste, a rotating shaft (23) is rotatably arranged in the shell (1) along the width direction of the shell (1), a plurality of turnover claws (21) are uniformly arranged on the rotating shaft (23) along the axis direction of the rotating shaft (23), the turnover claws (21) on the same rotating shaft (23) are staggered with the support rods in the same direction along the width direction of the shell (1), a plurality of rotating shafts (23) are arranged, the plurality of rotating shafts (23) are uniformly arranged along the length direction of the shell (1), a driving unit (24) for driving the rotating shaft (23) to rotate is arranged on one side of the rotating shaft (23), the shell (1) is a sealed structure, water is injected into the shell (1), the turnover claws (21) form a circular sweeping area when rotating, 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 (1) is higher than the height of the upper side of the circular sweeping area; A side plate (25) is vertically arranged at the end of the rotating shaft (23), a lifting groove (251) is formed in the side plate (25) along the vertical direction, a lifting block (252) is slidably arranged in the lifting groove (251) along the vertical direction, and the rotating shaft (23) is rotatably arranged on the lifting block (252); a lifting unit (253) for driving the lifting block (252) to move is arranged at the lower portion of the lifting block (252); The driving unit (24) comprises a lifting wheel (243) rotatably arranged on the lifting block (252), the lifting wheel (243) is fixedly connected with 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 rotary 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 sleeved on the periphery of the lifting wheel (243) and the driving wheel (242), and the synchronous belt (244) is in transmission cooperation with the lifting wheel (243) and the driving wheel (242) respectively. The lifting unit (253) comprises a pushing block (2531) moving 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 fixed at the lower part of the lifting block (252), the extension rod (2532) penetrates the bottom of the lifting groove (251), the pushing block (2531) is in contact with the bottom end of the extension rod (2532) when moving in the horizontal direction, the lifting block (252) and the lower end of the lifting groove (251) have a gap, a spring (2533) is vertically arranged in the gap, and both ends of the spring (2533) are fixedly connected with the lifting block (252) and the lower end of the lifting groove (251) respectively; A threaded rod (2535) is horizontally arranged on the moving path of the pushing block (2531), the threaded rod (2535) penetrates the pushing block (2531) and is threadedly connected 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); A blowing unit (26) is arranged between the separation unit (2) and the crushing unit (3), and the separation unit (2), the blowing unit (26) and the crushing unit (3) are sequentially arranged in the vertical direction, the blowing unit (26) comprises a fan (261) arranged on one side of the shell (1), and a connecting pipe (262) is arranged between the fan (261) and the shell (1), and the fan (261) blows external air into the shell (1) through the connecting pipe (262).

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

3. The construction waste crushing device for building construction according to claim 1, characterized in that, An overflow unit (4) is arranged on the side of the shell (1), the overflow unit (4) comprises an overflow outlet (41) arranged on the side wall of the shell (1), an overflow box (42) is arranged on one side of the overflow outlet (41), the water level in the shell (1) is higher than the bottom of the overflow outlet (41), and filter cotton (43) is arranged in the overflow box (42) and located below the overflow outlet (41).

4. The construction waste crushing device for building construction according to claim 1, characterized in that, A discharging unit (5) is further arranged on one side of the shell (1), the discharging unit (5) comprises a discharging shell (53) arranged on one side of the shell (1), the lower part of the discharging shell (53) is communicated with the lower part of the shell (1), the construction waste after crushing enters the discharging shell (53), a spiral blade (52) is vertically arranged in the discharging shell (53), a third rotary driver (51) for driving the spiral blade (52) to rotate is arranged at the end of the spiral blade (52), a discharging port is arranged on the upper side of the discharging shell (53), and a filter groove (531) is arranged at the connection between the discharging shell (53) and the shell (1).

5. The construction waste crushing device for building construction according to claim 1, characterized in that, The crushing unit (3) comprises two crushing rollers (32) arranged along the length direction of the shell (1), and fourth rotary drivers (31) for driving the two crushing rollers (32) are arranged at the ends of the two crushing rollers (32) respectively.

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