Construction waste recycled aggregate screening device

Abstract

The utility model discloses a construction waste recycled aggregate screening device. Belongs to the technical field of screening and comprises a mounting support, a screening mechanism is mounted on the mounting support, a feeding assembly is arranged at the front end of the mounting support and on the front side of the screening mechanism, the feeding assembly is composed of a feeding straight pipe, a feeding bent pipe, a feeding taper pipe and an inclined buffer plate, and the feeding bent pipe is fixedly mounted at the lower end of the feeding straight pipe; the feeding taper pipe is fixedly installed at the upper end of the feeding straight pipe, the two inclined buffer plates are fixedly installed on the inner wall of the feeding straight pipe in a staggered mode, and an arc-shaped shell is fixedly installed on the portion, on the upper side of the screening mechanism, of the mounting support. Therefore, potential energy generated by falling of the construction waste is reduced, impact of the construction waste on parts in the screening device can be reduced, finally the probability that the parts in the screening device are smashed by the construction waste can be reduced, and the service life of the screening device is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of screening, and relates to a screening device for recycled aggregates of construction waste. Background Art

[0002] Recycled aggregate from construction waste refers to aggregate that can be used in construction projects after crushing and screening of construction waste. After the construction waste is crushed by the crushing equipment, it needs to be screened by a screening device according to the size of the construction waste particles in order to facilitate subsequent classification and recycling.

[0003] The Chinese patent (application number: CN202321886339.7) proposes a screening device for recycled aggregates from construction waste. Although it can push the aggregates toward the discharge port by setting a fixed cylinder, connecting and fixing with a fixed frame plate, and cooperating with a driving shaft and a spiral blade, and by setting different graded filters on the bottom wall of the fixed cylinder, the screening of the aggregates is completed during the pushing and moving process of the aggregates. However, when the crushed construction waste to be screened is placed into the screening device through a feed pipe, the falling construction waste will generate a certain potential energy under the influence of gravity, so that the construction waste is easy to damage the parts in the screening device, thereby reducing the service life of the screening equipment. At the same time, when screening the construction waste, a large amount of dust will be generated. At this time, the dust will float out of the screening equipment, which will pollute the surrounding air environment and eventually be easily inhaled by the surrounding staff, thereby endangering the health of the surrounding staff. Therefore, a screening device for recycled aggregates from construction waste is needed to solve the above problems. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to propose a construction waste recycled aggregate screening device; to solve the problem that construction waste can easily damage the parts in the screening device, thereby reducing the service life of the screening equipment; to solve the problem that dust drifts out from the screening equipment, polluting the surrounding air environment, and finally easily being inhaled into the body by the surrounding staff, thereby endangering the health of the surrounding staff.

[0005] The technical solution of the utility model is: a construction waste recycled aggregate screening device described in the utility model comprises a mounting bracket, a screening mechanism is arranged on the mounting bracket, and a feeding assembly is arranged at the front end of the mounting bracket and on the front side of the screening mechanism;

[0006] The feed assembly consists of a feed straight pipe, a feed elbow, a feed cone pipe and an inclined buffer plate. The feed elbow is fixedly arranged at the lower end of the feed straight pipe, the feed cone pipe is fixedly arranged at the upper end of the feed straight pipe, there are two inclined buffer plates, which are staggered and fixedly arranged on the inner wall of the feed straight pipe, an arc-shaped shell is fixedly arranged on the mounting bracket and on the upper side of the screening mechanism, a spray mechanism is arranged on the arc-shaped shell, and the spray mechanism consists of a water delivery pump, a water distribution pipe, an atomizing nozzle and a connecting pipe. The water delivery pump is located above the arc-shaped shell, the water distribution pipe is attached to the outer wall of the arc-shaped shell, the atomizing nozzle is fixedly arranged on the water distribution pipe, and the atomizing nozzle simultaneously passes through the arc-shaped shell inwardly, and the connecting pipe connects the water outlet of the water delivery pump with the The water distribution pipeline is connected, and a dust removal mechanism is arranged on the arc-shaped shell and behind the spray mechanism. The dust removal mechanism consists of a rectangular frame, a connecting base plate, a dust extraction fan, a dust filter plate, a No. 1 dust extraction pipe, a No. 2 dust extraction pipe and a protective blocking net. The connecting base plate is fixedly arranged at the lower end of the rectangular frame, the dust extraction fan and the dust filter plate are fixedly arranged on the inner wall of the rectangular frame, and the dust filter plate is located below the dust extraction fan. There are two No. 1 dust extraction pipes and two No. 2 dust extraction pipes, and the two No. 1 dust extraction pipes and the two No. 2 dust extraction pipes are symmetrically arranged on the connecting base plate. The No. 1 dust extraction pipe and the No. 2 dust extraction pipe pass through the arc-shaped shell inward at the same time. There are four protective blocking nets and they are respectively fixedly arranged at the lower ends of the two No. 1 dust extraction pipes and the two No. 2 dust extraction pipes.

[0007] Furthermore, the mounting bracket is composed of a main bracket, a material discharge funnel and support legs. There are two material discharge funnels which are fixedly arranged at the lower end of the main bracket in front and back, and the support legs are also fixedly arranged at the lower end of the main bracket.

[0008] Furthermore, the screening mechanism is composed of a driving motor and a rotating net cylinder, the driving motor is fixedly mounted on the main body bracket, the rotating net cylinder is rotatably mounted on the main body bracket, and the output shaft of the driving motor is fixedly connected to the rotating net cylinder.

[0009] Furthermore, the rotating net cylinder on the screening mechanism is provided with screening meshes, and the diameter of the meshes at the front of the rotating net cylinder is smaller than the diameter of the meshes at the rear.

[0010] Furthermore, the feed elbow on the feed assembly is fixedly arranged at the front end of the main support, and the two inclined buffer plates are fixedly arranged on the inner wall of the feed straight pipe.

[0011] Furthermore, the arc-shaped shell cover is arranged on the rotating mesh cylinder on the screening mechanism.

[0012] Furthermore, the water inlet of the water delivery pump on the spray mechanism can be connected to an external water source through a pipe, the atomizing nozzle is fixedly connected to the arc-shaped shell, the connecting pipe is fixedly connected to the water delivery pump and the water distribution pipe, and the water delivery pump is fixedly connected to the arc-shaped shell through a bracket.

[0013] Furthermore, the rectangular frame and the connecting base plate on the dust removal mechanism are both located above the arc-shaped shell, and four through holes are symmetrically provided on the connecting base plate, and the upper parts of the two No. 1 dust extraction pipes and the two No. 2 dust extraction pipes respectively pass upward through the four through holes symmetrically provided on the connecting base plate, and the two No. 1 dust extraction pipes and the two No. 2 dust extraction pipes are both fixedly connected to the connecting base plate, and the lower parts of the two No. 1 dust extraction pipes and the two No. 2 dust extraction pipes pass inwardly through the arc-shaped shell, and the two No. 1 dust extraction pipes and the two No. 2 dust extraction pipes are both fixedly connected to the arc-shaped shell, and the protective blocking net is located on the inner side of the arc-shaped shell.

[0014] The beneficial effects of the utility model are as follows: by arranging a feeding assembly, the feeding assembly can block and buffer the incoming construction waste, thereby reducing the potential energy generated by the falling construction waste, and further reducing the impact of the construction waste on the parts in the screening device, and finally reducing the probability of the parts in the screening device being damaged by the construction waste, thereby ensuring the service life of the screening equipment; by arranging a spray mechanism, water can be atomized and sprayed into the screening device, thereby knocking down the dust generated by the screening of construction aggregates, thereby reducing the dust generated by the screening of construction waste; by arranging a dust removal mechanism, the dust in the screening device that is not knocked down by the spray mechanism can be collected, thereby reducing the dust from drifting into the outside air, thereby reducing the pollution of the surrounding air environment, and finally ensuring the health of the surrounding staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the mounting bracket, screening mechanism and feeding assembly of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the arc-shaped housing, the spray mechanism and the dust removal mechanism of the utility model;

[0018] Figure 4 This is a disassembled diagram of the dust removal mechanism of the utility model;

[0019] Figure 5 It is a cross-sectional view of the feed assembly of the utility model;

[0020] Figure 6 It is a structural schematic diagram of the connection bottom plate, the first dust extraction pipe, the second dust extraction pipe and the protective blocking net of the utility model;

[0021] In the figure: 1. mounting bracket; 2. screening mechanism; 3. feeding assembly; 4. arc-shaped shell; 5. spray mechanism; 6. dust removal mechanism; 7. main bracket; 8. feeding hopper; 9. supporting legs; 10. driving motor; 11. rotating net cylinder; 12. feeding straight pipe; 13. feeding elbow pipe; 14. feeding cone pipe; 15. inclined buffer plate; 16. water delivery pump; 17. water distribution pipe; 18. atomizing nozzle; 19. connecting pipe; 20. rectangular frame; 21. connecting bottom plate; 22. dust extraction fan; 23. dust filter plate; 24. No. 1 dust extraction pipe; 25. No. 2 dust extraction pipe; 26. protective barrier net. DETAILED DESCRIPTION

[0022] The specific technical scheme of the utility model is further described in detail below with reference to specific examples.

[0023] As shown in the figure, a construction waste recycled aggregate screening device described in the utility model includes a mounting bracket 1, which is composed of a main bracket 7, a feeding hopper 8 and a supporting leg 9. The feeding hopper 8 has two and is fixedly arranged at the lower end of the main bracket 7 in front and back. The supporting leg 9 is also fixedly installed at the lower end of the main bracket 7. A screening mechanism 2 is arranged on the mounting bracket 1, and the screening mechanism 2 is composed of a driving motor 10 and a rotating net cylinder 11. The driving motor 10 is fixedly arranged on the main bracket 7, and the rotating net cylinder 11 is rotatably arranged on the main bracket 7, and the output shaft of the driving motor 10 is fixedly connected to the rotating net cylinder 11. The rotating net cylinder 11 on the screening mechanism 2 is provided with screening meshes, and the mesh diameter of the front part of the rotating net cylinder 11 is smaller than the mesh diameter of the rear part.

[0024] like Figure 1-6As shown, a feed assembly 3 is arranged at the front end of the mounting bracket 1 and at the front side of the screening mechanism 2, and the feed assembly 3 is composed of a feed straight pipe 12, a feed elbow 13, a feed cone 14 and an inclined buffer plate 15. The feed elbow 13 is fixedly arranged at the lower end of the feed straight pipe 12, and the feed cone 14 is fixedly arranged at the upper end of the feed straight pipe 12. There are two inclined buffer plates 15 and they are staggered and fixedly arranged on the inner wall of the feed straight pipe 12. The feed elbow 13 on the feed assembly 3 is fixedly arranged at the front end of the main bracket 7, and the two inclined buffer plates 15 are fixedly arranged on the inner wall of the feed straight pipe 12. An arc shell 4 is fixedly arranged on the mounting bracket 1 and on the upper side of the screening mechanism 2. The arc shell 4 is arranged on the rotating net cylinder 11 on the screening mechanism 2, and a spray mechanism 5 is arranged on the arc-shaped shell 4, and the spray mechanism 5 is composed of a water delivery pump 16, a water distribution pipeline 17, an atomizing nozzle 18 and a connecting pipeline 19. The water delivery pump 16 is located above the arc-shaped shell 4, and the water distribution pipeline 17 is attached to the outer wall of the arc-shaped shell 4. The atomizing nozzle 18 is fixedly arranged on the water distribution pipeline 17, and the atomizing nozzle 18 passes through the arc-shaped shell 4 inwardly at the same time. The connecting pipeline 19 connects the water outlet of the water delivery pump 16 with the water distribution pipeline 17. The water inlet of the water delivery pump 16 on the spray mechanism 5 can be connected to an external water source through a pipeline. The atomizing nozzle 18 is fixedly connected to the arc-shaped shell 4. The connecting pipe 19 is fixedly connected to the water delivery pump 16 and the water distribution pipe 17. The water delivery pump 16 is fixedly connected to the arc-shaped shell 4 through a bracket. A dust removal mechanism 6 is installed on the arc-shaped shell 4 and behind the spray mechanism 5. The dust removal mechanism 6 consists of a rectangular frame 20, a connecting bottom plate 21, a dust extraction fan 22, a dust filter plate 23, a No. 1 dust extraction pipe 24, a No. 2 dust extraction pipe 25 and a protective blocking net 26. The connecting bottom plate 21 is fixedly installed at the lower end of the rectangular frame 20. The dust extraction fan 22 and the dust filter plate 23 are fixedly arranged on the inner wall of the rectangular frame 20, and the dust filter plate 23 is located below the dust extraction fan 22. The No. 1 dust extraction pipe 24 and the No. 2 dust extraction pipe 25 are each provided with two. And the two No. 1 dust extraction pipes 24 and the two No. 2 dust extraction pipes 25 are symmetrically arranged on the connecting bottom plate 21, and the No. 1 dust extraction pipe 24 and the No. 2 dust extraction pipe 25 pass through the arc-shaped shell 4 inward at the same time. There are four protective blocking nets 26 and they are fixedly arranged on the lower ends of the two No. 1 dust extraction pipes 24 and the two No. 2 dust extraction pipes 25 respectively. The rectangular frame 20 and the connecting bottom plate 21 on the dust removal mechanism 6 are both located above the arc-shaped shell 4, and four through holes are symmetrically opened on the connecting bottom plate 21. The upper parts of the two No. 1 dust extraction pipes 24 and the two No. 2 dust extraction pipes 25 pass upward through the four through holes symmetrically opened on the connecting bottom plate 21 respectively, and the two No. 1 dust extraction pipes 24 and the two No. 2 dust extraction pipes 25 are fixedly connected to the connecting bottom plate 21.The lower parts of the two No. 1 dust extraction pipes 24 and the two No. 2 dust extraction pipes 25 all pass through the arc shell 4 inwardly, and the two No. 1 dust extraction pipes 24 and the two No. 2 dust extraction pipes 25 are fixedly connected to the arc shell 4. The protective blocking net 26 is located on the inner side of the arc shell 4. By setting the feeding assembly 3, the feeding assembly 3 can block and buffer the incoming construction waste, thereby reducing the potential energy generated by the falling construction waste, thereby reducing the impact of the construction waste on the parts in the screening device, and finally reducing the probability of the parts in the screening device being damaged by the construction waste, thereby ensuring the service life of the screening equipment. By setting the spray mechanism 5, water can be sprayed into the screening device in an atomized form, thereby knocking down the dust generated by the screening of construction aggregates, thereby reducing the dust generated by the screening of construction waste. By setting the dust removal mechanism 6, the dust in the screening device that is not knocked down by the spray mechanism 5 can be collected, thereby reducing the dust from drifting into the outside air, thereby reducing the pollution of the surrounding air environment, and ultimately ensuring the health of the surrounding staff.

[0025] The working principle of the utility model is that when in use, the driving motor 10 on the screening mechanism 2 is first started, so that the driving motor 10 is used to drive the rotating net cylinder 11 to rotate in the main support 7, and then the crushed construction waste that needs to be screened is put into the rotating net cylinder 11 for screening. The method is to put the construction waste into the feeding component 3. At this time, the construction waste will slide from the feeding straight pipe 12, the feeding curved pipe 13 and the feeding cone pipe 14 into the rotating net cylinder 11 under the influence of gravity. In this process, the inclined buffer plate 15 will block and buffer the incoming construction waste, thereby reducing the potential energy generated by the falling construction waste, and then reducing the impact of the construction waste on the parts in the screening device, and finally reducing the probability of the parts in the screening device being damaged by the construction waste, thereby ensuring the service life of the screening equipment; when the construction waste enters the rotating rotating net cylinder 11, the construction waste with smaller particles will first pass downward through the mesh on the front side of the rotating net cylinder 11. , and then fall out from the discharge funnel 8 on the front side, while the construction waste with larger particles will fall from the mesh holes on the rear side of the rotating mesh cylinder 11, and finally fall out from the discharge funnel 8 on the rear side. Finally, the construction waste with the largest particles will be discharged from the rear of the rotating mesh cylinder 11, and the screening of the construction waste is completed at this time; and when the construction waste is screened by the rotating mesh cylinder 11, the spray mechanism 5 and the dust removal mechanism 6 installed on the arc-shaped shell 4 can be started, and the water delivery pump 16 will pump water into the water distribution pipe 17 at this time, and finally the water in the water distribution pipe 17 will be atomized and sprayed out by the atomizing nozzle 18, so as to knock down the dust generated by the screening of the construction waste, and the dust exhaust fan 22 on the dust removal mechanism 6 will work, and the air in the equipment will be pumped to the outside. In this process, the dust not knocked down by the spray mechanism 5 will be collected on the dust filter plate 23, so as to reduce the dust from drifting into the outside air, and then reduce the pollution of the surrounding air environment, and finally ensure the health of the surrounding staff.

Claims

1. A construction waste recycled aggregate screening device, characterized by: The invention comprises a mounting bracket (1), a screening mechanism (2) is arranged on the mounting bracket (1), a feeding assembly (3) is arranged at the front end of the mounting bracket (1) and on the front side of the screening mechanism (2), an arc-shaped housing (4) is fixedly arranged on the mounting bracket (1) and on the upper side of the screening mechanism (2), a spray mechanism (5) is arranged on the arc-shaped housing (4), and a dust removal mechanism (6) is arranged on the arc-shaped housing (4) and behind the spray mechanism (5); The feed assembly (3) comprises, from top to bottom, a feed cone tube (14), a feed straight tube (12) and a feed elbow tube (13); the feed cone tube (14) is fixedly arranged at the upper end of the feed straight tube (12); the feed elbow tube (13) is fixedly arranged at the lower end of the feed straight tube (12); two inclined buffer plates (15) are arranged inside the feed straight tube (12); the two inclined buffer plates (15) are staggered and fixedly arranged on the inner wall of the feed straight tube (12); The spray mechanism (5) comprises a water delivery pump (16), a water distribution pipe (17), an atomizing nozzle (18) and a connecting pipe (19); the water delivery pump (16) is arranged above the arc-shaped shell (4); the water distribution pipe (17) is attached to the outer wall of the arc-shaped shell (4); the atomizing nozzle (18) is fixedly arranged on the water distribution pipe (17) and passes through the arc-shaped shell (4) inwardly; two ends of the connecting pipe (19) are respectively connected to the water delivery pump (16) and the water distribution pipe (17); the connecting pipe (19) connects the water outlet of the water delivery pump (16) with the water distribution pipe (17); The dust removal mechanism (6) comprises a rectangular frame (20) and a connecting bottom plate (21), wherein the connecting bottom plate (21) is fixedly arranged at the lower end of the rectangular frame (20). A dust extraction fan (22) and a dust filter plate (23) are fixedly mounted on the inner wall of the rectangular frame (20) from top to bottom. The dust extraction fan (22) and the dust filter plate (23) are mounted on the upper end of the connection base plate (21). Two first dust extraction pipes (24) and a second dust extraction pipe (25) are symmetrically arranged on the connecting bottom plate (21); the other ends of the first dust extraction pipe (24) and the second dust extraction pipe (25) simultaneously pass through the arc-shaped housing (4) inwardly; and protective blocking nets (26) are fixedly arranged at the lower ends of the two first dust extraction pipes (24) and the two second dust extraction pipes (25); The mounting bracket (1) comprises a main bracket (7), and two material discharge funnels (8) are arranged at the lower end of the main bracket (7), and the two material discharge funnels (8) are fixedly arranged at the lower end of the main bracket (7) in front and back positions; Support legs (9) are fixedly mounted at the lower end of the main frame (7) and at both ends of the two discharge funnels (8); The screening mechanism (2) comprises a drive motor (10) and a rotating net cylinder (11) which are connected to each other, the drive motor (10) being fixedly mounted on a main body support (7), the rotating net cylinder (11) being rotatably mounted on the main body support (7), and the output shaft of the drive motor (10) being fixedly connected to the rotating net cylinder (11).

2. A construction waste recycled aggregate screening device according to claim 1, characterized in that: A plurality of screening meshes are provided on the rotating net cylinder (11), and the diameter of the meshes at the front of the rotating net cylinder (11) is smaller than the diameter of the meshes at the rear.

3. The construction waste recycled aggregate screening device according to claim 1, characterized in that: The feed elbow (13) on the feed assembly (3) is fixedly mounted on the front end of the main body bracket (7).

4. The construction waste recycled aggregate screening device according to claim 1, characterized in that: The arc-shaped housing (4) is mounted on a rotating mesh cylinder (11) on the screening mechanism (2).

5. The construction waste recycled aggregate screening device according to claim 1, characterized in that: The water inlet of the water delivery pump (16) on the spray mechanism (5) is connected to an external water source through a pipeline, the atomizing nozzle (18) is fixedly connected to the arc-shaped shell (4), the connecting pipeline (19) is fixedly connected to the water delivery pump (16) and the water distribution pipeline (17), and the water delivery pump (16) is fixedly connected to the arc-shaped shell (4) through a bracket.

6. The construction waste recycled aggregate screening device according to claim 1, characterized in that: The rectangular frame (20) and the connecting base plate (21) on the dust removal mechanism (6) are both located above the arc-shaped shell (4); four through holes are symmetrically provided on the connecting base plate (21); the upper parts of the two No. 1 dust extraction pipes (24) and the two No. 2 dust extraction pipes (25) respectively pass upward through the four through holes symmetrically provided on the connecting base plate (21); the two No. 1 dust extraction pipes (24) and the two No. 2 dust extraction pipes (25) are both fixedly connected to the connecting base plate (21); the lower parts of the two No. 1 dust extraction pipes (24) and the two No. 2 dust extraction pipes (25) pass inwardly through the arc-shaped shell (4); and the two No. 1 dust extraction pipes (24) and the two No. 2 dust extraction pipes (25) are both fixedly connected to the arc-shaped shell (4); and the protective blocking net (26) is located on the inner side of the arc-shaped shell (4).

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