Cleaning device for building waste recycling and processing

Abstract

The utility model discloses a cleaning device for building waste recovery processing, which relates to the technical field of building waste recovery, and comprises a roller, an annular baffle plate, a plurality of groups of screening holes, a spiral guide plate and a leakage groove, and the multiple groups of screening holes are used for classifying granular stones with different sizes into small materials. According to the screening device, the screening holes and the spiral guide plate provided with the material leaking grooves are arranged, when building waste moves to the screening hole area, small-particle stones smaller than the hole diameter of the screening holes can fall to the inclined hollow plate from the screening holes, and therefore screening of the building waste is achieved, and meanwhile the screening efficiency is improved. And small-particle stones smaller than the aperture of the screening holes can penetrate through the leakage grooves when encountering the leakage grooves, so that the small-particle stones smaller than the aperture of the screening holes can better stay in the area where the screening holes are located, and full screening of the small-particle stones is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction waste recycling, in particular to a cleaning device for construction waste recycling and processing. Background Art

[0002] The construction industry is an industry with high energy consumption and serious environmental pollution. Strengthening the recycling and reuse of construction waste is important to realize the circular economy of the construction industry. The recycling of construction waste can not only improve the utilization rate of resources, but also protect the ecological environment and achieve sustainable development. The reuse of construction waste can be roughly divided into three levels:

[0003] (1) Low-level utilization: crushing waste concrete and using it as a foundation layer for buildings or a road base. This is the simplest way to utilize waste concrete and is also the most commonly used recycling method for waste concrete in my country.

[0004] (2) Intermediate utilization: crushing waste concrete to produce concrete blocks, paving bricks and other products;

[0005] (3) Advanced utilization: After being washed, crushed, screened, sorted and cleaned, the waste concrete can be used as recycled aggregate to replace part of the natural sand and gravel aggregate to make recycled aggregate concrete. It can be directly added to commercial concrete as aggregate to replace 10% to 30% of natural aggregate. This is the most valuable treatment method for waste concrete. Recycled concrete made from recycled aggregate is a green concrete.

[0006] Drum cleaning machine (also known as drum sand washing machine) is one of the commonly used equipment for cleaning waste concrete. Traditional drum cleaning machine can only clean impurities on the surface of waste concrete and does not have screening function. There are many small particles of stone mixed in the waste concrete. These small particles of stone do not need to be crushed again, and the small particles of stone are transported to the crusher for crushing together with the large stones, resulting in a waste of resources of transportation equipment and crushing equipment. Based on this, a cleaning device for recycling and processing construction waste is provided. Utility Model Content

[0007] The purpose of the utility model is to provide a cleaning device for recycling and processing construction waste in order to solve the above-mentioned background problems.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cleaning device for recycling and processing construction waste, comprising a drum, a plurality of evenly distributed annular baffles are fixed on the outside of the drum, a screening hole is opened on the outside of the drum in the middle of two adjacent annular baffles, the screening holes are arranged in multiple groups, the multiple groups of screening holes are evenly distributed along the discharging direction of the drum and the apertures increase in sequence, and the multiple groups of screening holes are used to realize the classification of small materials of granular stones of different sizes;

[0009] The inner wall of the drum is welded with a plurality of groups of spiral guide plates distributed horizontally, each group of the spiral guide plates includes a plurality of spiral guide plates distributed in an annular manner, and the spiral guide plates are used to rotate synchronously with the drum to turn over the construction waste inside the drum and transport it forward;

[0010] A leakage groove is provided on the spiral guide plate aligned with the screening hole, and the width of the leakage groove matches the corresponding aperture of the screening hole. The leakage groove prevents the spiral guide plate from pushing small-particle stones smaller than the width of the leakage groove when rotating, so that small-particle stones smaller than the aperture of the screening hole stay in the area where the screening hole is located, thereby achieving sufficient screening of small-particle stones.

[0011] As a further solution of the utility model: a water trough is arranged under the drum, a rolling support seat is installed on the top of the water trough, a limiting rolling ring is fixed on the outer side of the drum in the middle of the two annular baffles, the limiting rolling ring and the screening holes are staggered, the limiting rolling ring is limitedly and rollingly connected to the inner side of the rolling support seat, a large sprocket is fixed on the outer side of the feed port of the drum, and the large sprocket is connected to the external drive motor through a chain and a sprocket.

[0012] As a further solution of the utility model: a plurality of annularly distributed drainage grooves are provided outside the discharge port of the drum, and the drainage grooves are located in the upper area of ​​the water tank to achieve sufficient separation of cleaning water and construction waste.

[0013] As a further solution of the utility model: the top of the water tank is fixedly connected with an inclined hollow plate through a bracket, and the inclined hollow plate is located directly below the screening hole. The inclined hollow plate is used to receive and guide small-grained stones falling from the screening hole.

[0014] As a further solution of the utility model: limit baffles are fixed at both ends of the top of the inclined hollow plate, and the width between the two limit baffles is greater than the width between the two annular baffles.

[0015] As a further solution of the utility model: the outer wall of the drum is located in the middle of the two groups of adjacent screening holes and is solid, and a leakage groove is also provided on the spiral guide plate distributed in the middle of the two groups of adjacent screening holes, and the width of the leakage groove matches the aperture of the screening holes close to the drum feed port.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] By setting screening holes and a spiral guide plate with a leakage trough, when the construction waste moves to the screening hole area, small particles of stone smaller than the aperture of the screening hole will fall from the screening hole to the inclined hollow plate, thereby realizing the screening of the construction waste. At the same time, small particles of stone smaller than the aperture of the screening hole will pass through the leakage trough when encountering the leakage trough, so that the small particles of stone smaller than the aperture of the screening hole can better stay in the area where the screening hole is located, thereby realizing sufficient screening of the small particles of stone. The stones larger than the aperture of the screening hole can still be driven when they come into contact with the leakage trough, so that the stones larger than the aperture of the screening hole can continue to move forward, and the above process is repeated when it comes into contact with the second group of screening holes. In this way, the classification screening of particles of different sizes can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is another schematic diagram of the structure of the utility model;

[0020] Figure 3 This is a cross-sectional view of the internal structure of the drum of the present utility model.

[0021] In the figure: 1. roller; 2. annular baffle; 3. screening hole; 4. limiting rolling ring; 5. large sprocket; 6. drainage trough; 7. water trough; 8. rolling support seat; 9. inclined hollow plate; 10. spiral guide plate; 11. leakage trough. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 3 In an embodiment of the utility model, a cleaning device for recycling and processing construction waste includes a drum 1, a plurality of evenly distributed annular baffles 2 are fixed on the outside of the drum 1, a screening hole 3 is opened on the outside of the drum 1 in the middle of two adjacent annular baffles 2, and a plurality of groups of screening holes 3 are arranged, and the plurality of groups of screening holes 3 are evenly distributed along the discharging direction of the drum 1 and the apertures increase in sequence, and the plurality of groups of screening holes 3 are used to realize the classification of small materials of granular stones of different sizes;

[0024] The inner wall of the drum 1 is welded with a plurality of groups of spiral guide plates 10 distributed horizontally, each group of spiral guide plates 10 includes a plurality of spiral guide plates 10 distributed in an annular manner, and the spiral guide plates 10 are used to rotate synchronously with the drum 1 to turn over the construction waste inside the drum 1 and transport it forward;

[0025] A material leakage groove 11 is provided on the spiral guide plate 10 aligned with the screening hole 3. The width of the material leakage groove 11 matches the aperture of the corresponding screening hole 3. The material leakage groove 11 prevents the spiral guide plate 10 from pushing small-grained stones smaller than the width of the material leakage groove 11 when rotating, so that small-grained stones smaller than the aperture of the screening hole 3 stay in the area where the screening hole 3 is located, thereby achieving full screening of small-grained stones.

[0026] A water tank 7 is provided below the drum 1, and a rolling support seat 8 is installed on the top of the water tank 7. A limited rolling ring 4 is fixed on the outer side of the drum 1 between the two annular baffles 2. The limited rolling ring 4 and the screening hole 3 are staggered. The limited rolling ring 4 is connected to the inner side of the rolling support seat 8 in a limited rolling manner. A large sprocket 5 is fixed on the outer side of the feed port of the drum 1, and the large sprocket 5 is connected to the external drive motor through a chain and a sprocket.

[0027] A plurality of annular drainage grooves 6 are provided outside the discharge port of the drum 1. The drainage grooves 6 are located above the water tank 7 to achieve sufficient separation of the cleaning water and the construction waste.

[0028] The top of the water tank 7 is fixedly connected with an inclined hollow plate 9 through a bracket. The inclined hollow plate 9 is located directly below the screening hole 3. The inclined hollow plate 9 is used to receive and guide the small-grained stones falling from the screening hole 3.

[0029] In this embodiment: it should be supplemented that: a spray pipe extending from the discharge port of the drum 1 to the inside of the drum 1 is arranged outside the drum 1, the spray pipe is fixed to the water tank 7 through a bracket, and the spray pipe is connected to an external water pump through a pipeline;

[0030] When cleaning the construction waste, the construction waste is introduced into the drum 1 through the external hopper, and at the same time, the external driving motor is started to drive the drum 1 to roll through the sprocket, chain, and large sprocket 5, and the external water pump is started. The rolling drum 1 drives the construction waste to turn over and move toward the discharge port of the drum 1 through the spiral guide plate 10, and the external water pump transports the cleaning water to the spray pipe and sprays it out, so as to realize the washing operation of the turned and moved construction waste;

[0031] In this process, when the construction waste moves to the screening hole 3 area, small particles of stone smaller than the aperture of the screening hole 3 will fall from the screening hole 3 onto the inclined hollow plate 9, and then slide along the inclined surface of the inclined hollow plate 9, so that the screening of the construction waste is achieved. At the same time, since a plurality of leakage grooves 11 are horizontally opened on the spiral guide plate 10 aligned with the position of the screening hole 3, the small particles of stone smaller than the aperture of the screening hole 3 will pass through the leakage groove 11 when encountering the leakage groove 11, so the rotating spiral The guide plate 10 will not push the small-sized stones smaller than the aperture of the screening hole 3, so that the small-sized stones smaller than the aperture of the screening hole 3 can better stay in the area where the screening hole 3 is located, and the small-sized stones can be fully screened, and the stones larger than the aperture of the screening hole 3 can still be driven when they contact the leakage trough 11, so that the stones larger than the aperture of the screening hole 3 can continue to move forward, and repeat the above process when contacting the second group of screening holes 3, and the classification and screening of particles of different sizes can be achieved by reciprocating in this way;

[0032] Finally, the large stones to be crushed are discharged from the discharge port of the drum 1, and the cleaning water mixed in the large stones can be discharged into the water tank 7 through the drainage tank 6;

[0033] It should be additionally explained that the sewage generated by flushing also flows into the water tank 7 through the sieve holes 3 and the holes on the inclined hollow plate 9 .

[0034] Please refer to Figures 1-2 Limit baffles are fixed at both ends of the top of the inclined hollow plate 9, and the width between the two limit baffles is greater than the width between the two annular baffles 2.

[0035] In this embodiment: this structure can prevent the small-grained stones that have been screened from falling from the edges of the inclined hollow plate 9 at both ends, thereby ensuring the stable discharge of small-grained stones. At the same time, the annular baffle 2 can separate the working area of ​​the screening hole 3 from the working area of ​​the limiting rolling ring 4 and the large sprocket 5, thereby preventing the cleaning sewage from contacting the limiting rolling ring 4 and the large sprocket 5 and affecting their operation.

[0036] Please refer to Figures 1 to 3 The outer wall of the drum 1 is located in the middle of two groups of adjacent screening holes 3 and is solid in shape, and a leakage groove 11 is also provided on the spiral guide plate 10 distributed in the middle of the two groups of adjacent screening holes 3, and the width of the leakage groove 11 matches the aperture of the screening hole 3 close to the feed port of the drum 1.

[0037] In the present embodiment, it should be additionally explained that: when the drum 1 is actually used, the height of the feed port is slightly higher than the height of the discharge port, that is, the drum 1 as a whole is inclined at a small angle, so that the small-grained stones mixed in the large stones can better fall back to the corresponding screening hole 3 area, further ensuring the sufficient screening of the small-grained stones.

[0038] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cleaning device for recycling and processing construction waste, comprising a drum (1), characterized in that: A plurality of evenly distributed annular baffles (2) are fixed on the outside of the drum (1); a screening hole (3) is provided on the outside of the drum (1) between two adjacent annular baffles (2); a plurality of groups of the screening holes (3) are arranged; the plurality of groups of the screening holes (3) are evenly distributed along the discharging direction of the drum (1) and the apertures increase in sequence; the plurality of groups of the screening holes (3) are used to classify small particles of stone blocks of different sizes; The inner wall of the drum (1) is welded with a plurality of groups of spiral guide plates (10) distributed horizontally, each group of the spiral guide plates (10) comprising a plurality of spiral guide plates (10) distributed in an annular manner, and the spiral guide plates (10) are used to rotate synchronously with the drum (1) to turn over the construction waste inside the drum (1) and transport it forward; A material leakage groove (11) is provided on the spiral guide plate (10) aligned with the screening hole (3), the width of the material leakage groove (11) matches the aperture of the corresponding screening hole (3), and the material leakage groove (11) makes it impossible for the spiral guide plate (10) to push small-grained stones smaller than the width of the material leakage groove (11) when rotating, so that small-grained stones smaller than the aperture of the screening hole (3) stay in the area where the screening hole (3) is located, thereby achieving full screening of small-grained stones.

2. A cleaning device for recycling construction waste according to claim 1, characterized in that: A water trough (7) is arranged below the drum (1), a rolling support seat (8) is installed on the top of the water trough (7), a limited rolling ring (4) is fixed on the outer side of the drum (1) between the two annular baffles (2), the limited rolling ring (4) and the screening hole (3) are staggered, the limited rolling ring (4) is connected to the inner side of the rolling support seat (8) in a limited rolling manner, and a large sprocket (5) is fixed on the outer side of the feed port of the drum (1), and the large sprocket (5) is connected to the external drive motor through a chain and a sprocket.

3. A cleaning device for recycling construction waste according to claim 2, characterized in that: A plurality of annularly distributed drainage grooves (6) are provided outside the discharge port of the drum (1); the drainage grooves (6) are located above the water tank (7) and are used to achieve sufficient separation of cleaning water and construction waste.

4. A cleaning device for recycling construction waste according to claim 2, characterized in that: The top of the water tank (7) is fixedly connected to an inclined hollow plate (9) via a bracket. The inclined hollow plate (9) is located directly below the screening hole (3). The inclined hollow plate (9) is used to receive and guide small-grained stones falling from the screening hole (3).

5. A cleaning device for recycling construction waste according to claim 4, characterized in that: Limit baffles are fixed at both ends of the top of the inclined hollow plate (9), and the width between the two limit baffles is greater than the width between the two annular baffles (2).

6. A cleaning device for recycling construction waste according to claim 1, characterized in that: The outer wall of the drum (1) is located in the middle of two groups of adjacent screening holes (3) and is solid in shape, and a material leakage groove (11) is also provided on the spiral guide plate (10) distributed in the middle of the two groups of adjacent screening holes (3), and the width of the material leakage groove (11) matches the aperture of the screening hole (3) close to the feed port of the drum (1).

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