House building engineering waste centralized classification and recovery device

Abstract

The application discloses a housing construction engineering waste centralized classification and recovery device, and relates to the technical field of housing construction, which comprises a base mechanism, a gravel collecting bin is fixedly connected to the front side of the base mechanism, a shell is fixedly connected to the top of the base mechanism, a feeding and crushing mechanism is fixedly connected to the inner wall of the shell, and a material distributing mechanism is fixedly connected to the top of the gravel collecting bin. The feeding mechanism and the crushing mechanism are arranged, so that waste stone materials can be automatically transported and crushed after entering the device, so that the stone plates are separated from the internal steel bars. Specifically, the waste concrete plate separation process is as follows: firstly, the plate is placed on the conveying belt of the automatic conveying sleeve, the belt sends the plate to the feeding table, then the hydraulic push rod pushes the plate to the bottom of the crushing pressing plate, the second hydraulic push rod moves the crushing pressing plate downward, the plate is crushed and the internal steel bars are exposed, finally, the hydraulic push rod is reset, and the next plate is ready for crushing.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of house building, and particularly relates to a house building engineering waste centralized classification and recovery device. BACKGROUND

[0002] House building engineering refers to building and constructing activities of buildings and structures on land, including new building, reconstruction, expansion, demolition and the like. A large amount of waste, such as concrete blocks, brick fragments, wood, plastic and metal, is generated in the construction process of the engineering. Traditionally, the waste is mixed and stacked, which not only occupies a large amount of land resources, but also causes serious environmental pollution. Therefore, how to effectively classify and recover the waste has become a problem to be solved in the building industry.

[0003] According to the patent document CN216679048U, a building waste classification and recovery device is disclosed, which belongs to the technical field of building engineering. The device comprises a first box body, a second box body fixedly installed on the upper side wall of the first box body, a feeding hopper fixedly installed on the upper side wall of the second box body, and a third box body fixedly installed on the right side wall of the first box body. The debris in the building waste passes through the mesh screen into the interior of the third box body, and then the building waste on the surface of the mesh screen is pushed from the interior of the third box body to the interior of the first box body by the push plate. The large parts of the building waste can be recycled and reused, and the debris in the building waste can be collected and treated in a centralized manner. The centralized treatment of waste avoids environmental impact and achieves an environmental protection effect. The building waste is classified and recovered by the first box body and the third box body, which improves the recycling rate of building waste, saves costs, and makes the building waste treatment process more convenient.

[0004] In the process of house construction, a large amount of damaged concrete slabs and waste stone materials are generated. In general, in order to ensure the structural strength of the concrete slabs and waste stone materials, steel bars are added during the processing. However, when recycling the waste materials, only the waste stone materials or concrete slabs can be recycled as a whole, and the steel bars cannot be effectively separated from the concrete or stone materials, which limits the utilization efficiency of the subsequent reprocessing of the concrete or stone materials. SUMMARY

[0005] The application aims to provide a house building engineering waste centralized classification and recovery device to solve the problem that, in the prior art, only the waste stone materials or concrete slabs can be recycled as a whole when recycling the waste materials, and the steel bars cannot be effectively separated from the concrete or stone materials, which limits the utilization efficiency of the subsequent reprocessing of the concrete or stone materials.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a housing construction engineering waste centralized classification and recovery device, comprising a base mechanism, the front side of the base mechanism is fixedly connected with a gravel collecting bin, the top of the base mechanism is fixedly connected with a shell, the inner wall of the shell is fixedly connected with a feeding and crushing mechanism, the top of the gravel collecting bin is fixedly connected with a material distribution mechanism;

[0007] The feeding and crushing mechanism comprises a feeding mechanism, and the outer wall of the feeding mechanism is fixedly connected with a crushing mechanism.

[0008] Preferably, the feeding mechanism comprises a feeding table, the left and right sides of the bottom of the feeding table are respectively fixedly connected with connecting frames, the front sides of the two connecting frames are respectively fixedly connected to the left and right sides of the bottom of the rear side of the shell, the front and rear sides of the left and right sides of the feeding table are both fixedly connected with L-shaped connecting plates, the sides away from the feeding table of the two groups of L-shaped connecting plates are both fixedly connected with connecting rods, and the sides away from the L-shaped connecting plates of the two groups of connecting rods are respectively fixedly connected to the left and right sides of the inner wall of the shell.

[0009] Preferably, the front side of the feeding table extends to the front side of the outer wall of the shell and is provided with a discharging groove in the bottom, the rear side of the feeding table extends to the rear side of the outer wall of the shell and is fixedly connected with an automatic conveying sleeve on the right side, the inner wall bottom of the automatic conveying sleeve is provided with a conveying track, the rear side of the inner wall bottom of the feeding table is provided with a sliding groove, the bottom of the feeding table is fixedly connected with a hydraulic push rod, the rear end of the hydraulic push rod is fixedly connected with a push plate pull block, the outer wall of the push plate pull block is slidingly connected to the inner wall of the sliding groove, the top of the push plate pull block extends to the inner wall of the feeding table through the sliding groove and is fixedly connected with a push plate, and the outer wall of the push plate is slidingly connected to the inner wall of the feeding table.

[0010] Preferably, the crushing mechanism comprises two crushing plates, the outer sides of the four sides of the two crushing plates are both fixedly connected with sliding rod connecting blocks, the inner sides of the two crushing plates are respectively fixedly connected with two hydraulic push rod connecting rods, the inner walls of the two hydraulic push rod connecting rods are fixedly connected with second hydraulic push rods, the inner walls of the four groups of sliding rod connecting blocks are all slidingly connected with sliding rods, the outer sides of the two groups of sliding rod connecting blocks at the top are both fixedly connected with top connecting vertical rods, and the top of the two groups of top connecting vertical rods is fixedly connected to the inner wall top of the shell.

[0011] Preferably, the left and right sides of the bottom of the two crushing plate are fixedly connected with slide rod connecting blocks, the bottoms of the front and rear groups of slide rod connecting blocks are fixedly connected with slide rods, the bottom ends of the front and rear groups of slide rods are fixedly connected with slide rod connecting bottom blocks, the inner sides of the front and rear groups of slide rod connecting bottom blocks are fixedly connected with the bottoms of the left and right sides of the feeding table, the bottom ends of the front and rear groups of slide rods are fixedly connected with crushing pressure plate connecting rods, and the bottoms of the two crushing pressure plate connecting rods are fixedly connected with crushing pressure plates.

[0012] Preferably, the material distributing mechanism comprises a material distributing mechanism shell, and the left and right sides of the inner side of the material distributing mechanism shell are movably connected with control plates.

[0013] Preferably, the material distributing mechanism shell comprises a discharging pipe, the left and right sides of the bottom of the discharging pipe are fixedly connected with steel bar collecting bins, the outer sides of the two steel bar collecting bins are fixedly connected with side vertical plate connecting blocks, the outer sides of the two side vertical plate connecting blocks are fixedly connected with side vertical plates, the top of the two side vertical plates are fixedly connected with third hydraulic push rod connecting blocks, the inner sides of the two third hydraulic push rod connecting blocks are fixedly connected with third hydraulic push rods, the inner sides of the two side vertical plates are fixedly connected with two hinged plates, the inner sides of the two groups of hinged plates are provided with hinged grooves at the top and the bottom, and the top of the discharging pipe is aligned with the bottom of the discharging groove.

[0014] Preferably, the two control plates each comprise a control side plate, the top and the bottom of the outer side of the control side plate are rotatably connected with two rotating rods, the side away from the control side plate of the four groups of rotating rods are rotatably connected with bidirectional hinged rods, the side away from the rotating rods of the four groups of bidirectional hinged rods are rotatably connected with second rotating rods, the inner side of the side away from the bidirectional hinged rods of the four groups of second rotating rods are rotatably connected with opening and closing plates, and the outer walls of the four groups of bidirectional hinged rods are rotatably connected with the inner walls of the four groups of hinged grooves.

[0015] Preferably, the inner side of the bottom of the two control side plates are fixedly connected with magnetic attractors, and the side of the two opening and closing plates away from the magnetic attractors are provided with magnetic attractor moving grooves.

[0016] Preferably, the top of the two opening and closing plates are fixedly connected with opening and closing plate top connecting blocks, the inner sides of the two third hydraulic push rods are fixedly connected with the outer walls of the two opening and closing plate top connecting blocks, the inner sides of the top of the two opening and closing plates are fixedly connected with cover plates, the inner sides of the two cover plates are attached, and the bottom of the two cover plates are movably connected with the top of the discharging pipe.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] 1. The application is provided with a feeding mechanism and a crushing mechanism, so that the waste stone material can be automatically transported and crushed after entering the device, so that the stone plate and the internal steel bar are separated, specifically, the waste concrete plate separation process is as follows: first, place the plate on the conveying belt of the automatic conveying sleeve, the belt sends it to the feeding table, then the hydraulic push rod pushes the push plate to push the stone plate to the bottom of the crushing pressure plate, then the second hydraulic push rod moves the crushing pressure plate downward, crushes the stone plate and exposes the internal steel bar, finally, the hydraulic push rod resets, ready to crush the next stone plate;

[0019] 2. The application of the present application is provided with a material distribution mechanism shell and its internal control board, magnetic attractor, opening and closing plate and other structures, which can effectively concentrate the classification and recycling of house building engineering waste, solves the problem that the steel bar and the concrete or stone material cannot be effectively separated in the prior art, improves the utilization efficiency of the subsequent reprocessing of the concrete or stone material, has significant technical progress and practical value, specifically, the stone material and the steel bar are conveyed to the discharging chute, the hydraulic push rod is started to pull the opening and closing plate, so that the stone material falls into the stone collecting bin, when the opening and closing plate moves, the rotating rod pushes the bidirectional hinged rod to rotate in the hinged groove, and then pushes the control side plate and the magnetic attractor to move to the inside of the opening and closing plate, the magnetic attractor is started, clamping the stone material and the steel bar, realizing separation, the separated steel bar is guided to the steel bar collecting bin. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the main body of the application of a house building engineering waste concentrated classification and recycling device. The three-dimensional structure diagram is shown.

[0021] Figure 2 It is the main body of the application of a house building engineering waste concentrated classification and recycling device. The three-dimensional structure diagram is shown.

[0022] Figure 3 It is the main body of the application of a house building engineering waste concentrated classification and recycling device. The three-dimensional structure diagram is shown.

[0023] Figure 4 It is the main body of the application of a house building engineering waste concentrated classification and recycling device. The three-dimensional structure diagram is shown.

[0024] Figure 5 It is the main body of the application of a house building engineering waste concentrated classification and recycling device. The three-dimensional structure diagram is shown.

[0025] Figure 6 It is the main body of the application of a house building engineering waste concentrated classification and recycling device. The three-dimensional structure diagram is shown.

[0026] Figure 7 It is the main body of the application of a house building engineering waste concentrated classification and recycling device. The three-dimensional structure diagram is shown.

[0027] Figure 8 It is a housing construction engineering waste centralized classification and recycling device of material separating mechanism three-dimensional separation structure schematic view;

[0028] Figure 9 It is a housing construction engineering waste centralized classification and recycling device of material separating mechanism shell three-dimensional structure schematic view;

[0029] Figure 10 It is a housing construction engineering waste centralized classification and recycling device of control panel three-dimensional structure schematic view.

[0030] Label in the figure: 1, base mechanism;2, feeding and crushing mechanism;21, feeding mechanism;211, feeding table;212, automatic conveying sleeve;213, conveying track;214, chute;215, connecting frame;216, hydraulic push rod;217, push plate push-pull block;218, push plate;219, discharge chute;2110, L-shaped connecting plate;2111, connecting rod;22, crushing mechanism;221, crushing plate;222, hydraulic push rod connecting rod;223, second hydraulic push rod;224, sliding rod connecting block;225, top connecting vertical rod;226, sliding rod connecting block;227, sliding rod;228, sliding rod;229, sliding rod connecting bottom block;2210, crushing clamp plate connecting rod;2211, crushing clamp plate;3, material separating mechanism;31, material separating mechanism shell;311, discharge pipe;312, reinforcing bar collecting bin;313, side vertical plate link block;314, side vertical plate;315, hinged plate;316, hinged groove;317, third hydraulic push rod connecting block;318, third hydraulic push rod;32, control panel;321, control side plate;322, rotating rod;323, bidirectional hinged rod;324, second rotating rod;325, opening and closing plate top connecting block;326, magnetic attractor;327, magnetic attractor moving groove;328, opening and closing plate;329, cover plate;4, gravel collecting bin;5, shell. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0032] Embodiment: as Figures 1-2As shown, the housing construction engineering waste centralized classification and recovery device provides a technical scheme, which comprises a base mechanism 1, a gravel collection bin 4 fixedly connected to the front side of the base mechanism 1, a shell 5 fixedly connected to the top of the base mechanism 1, a feeding and crushing mechanism 2 fixedly connected to the inner wall of the shell 5, and a material distribution mechanism 3 fixedly connected to the top of the gravel collection bin 4.

[0033] Please refer to Figures 3-6The feeding and crushing mechanism 2 comprises a feeding mechanism 21, the outer wall of the feeding mechanism 21 is fixedly connected with a crushing mechanism 22, the feeding mechanism 21 comprises a feeding table 211, the left and right sides of the bottom of the feeding table 211 are fixedly connected with connecting frames 215 respectively, the front sides of the two connecting frames 215 are fixedly connected to the left and right sides of the bottom of the rear side of the shell 5 respectively, the front and rear sides of the left and right sides of the feeding table 211 are fixedly connected with L-shaped connecting plates 2110, the sides, away from the feeding table 211, of the two groups of L-shaped connecting plates 2110 are fixedly connected with connecting rods 2111, the sides, away from the L-shaped connecting plates 2110, of the two groups of connecting rods 2111 are fixedly connected to the left and right sides of the inner wall of the shell 5 respectively, the front side of the feeding table 211 extends to the front side of the outer wall of the shell 5 and is provided with a discharging groove 219 at the bottom, the rear side of the feeding table 211 extends to the rear side of the outer wall of the shell 5 and is fixedly connected with an automatic conveying sleeve 212 on the right side, the inner wall bottom of the automatic conveying sleeve 212 is provided with a conveying track 213, the rear side of the inner wall bottom of the feeding table 211 is provided with a sliding groove 214, the bottom of the feeding table 211 is fixedly connected with a hydraulic push rod 216, the rear end of the hydraulic push rod 216 is fixedly connected with a push plate push-pull block 217, the outer wall of the push plate push-pull block 217 is slidingly connected to the inner wall of the sliding groove 214, the top of the push plate push-pull block 217 extends to the inner wall of the feeding table 211 through the sliding groove 214 and is fixedly connected with a push plate 218, the outer wall of the push plate 218 is slidingly connected to the inner wall of the feeding table 211, the crushing mechanism 22 comprises two crushing plates 221, the outer sides of the four sides of the two crushing plates 221 are fixedly connected with sliding rod connecting blocks 224, the inner sides of the two crushing plates 221 are fixedly connected with two hydraulic push rod connecting rods 222 respectively, the inner walls of the two hydraulic push rod connecting rods 222 are fixedly connected with second hydraulic push rods 223, the inner walls of the four groups of sliding rod connecting blocks 224 are slidingly connected with sliding rods 227, the outer sides of the top two groups of sliding rod connecting blocks 224 are fixedly connected with top connecting vertical rods 225, the tops of the two groups of top connecting vertical rods 225 are fixedly connected to the inner wall top of the shell 5, the left and right sides of the bottom of the outer side of the two crushing plates 221 are fixedly connected with sliding rod connecting blocks 226, the bottoms of the front and rear groups of sliding rod connecting blocks 226 are fixedly connected with sliding rods 228, the bottom ends of the front and rear groups of sliding rods 228 are fixedly connected with sliding rod connecting bottom blocks 229, the inner sides of the front and rear groups of sliding rod connecting bottom blocks 229 are fixedly connected to the bottoms of the left and right sides of the feeding table 211 respectively, the bottom ends of the front and rear groups of sliding rods 227 are fixedly connected with crushing pressure plate connecting rods 2210, the bottoms of the two crushing pressure plate connecting rods 2210 are fixedly connected with crushing pressure plates 2211, the inner walls of the left and right sides of the two crushing pressure plate connecting rods 2210 are slidingly connected to the outer walls of the front and rear groups of sliding rods 228 respectively;

[0034] In the process of processing waste concrete slab, first need to place the waste concrete slab on the inner wall of the automatic conveying sleeve 212 conveying crawler belt 213, then, the conveying crawler belt 213 transports the concrete slab to the inner wall of the feeding table 211, then, start the hydraulic push rod 216, pull the push plate push-pull block 217 in the inner wall of the sliding groove 214, in turn, push the push plate 218 to push the slab to the bottom of the crushing pressure plate 2211, at this time, activate the second hydraulic push rod 223, drive the crushing pressure plate 2211 downward, the crushing pressure plate 2211 in the process of falling, through the sliding of the two crushing pressure plate connecting rods 2210 on the outer wall of the sliding rod 228, ensure the stability and direction of the fixed in the process of falling, at the same time, the sliding rod 227 in the sliding rod connecting block 224 inner wall sliding further enhances the stability in the process of falling, the crushing pressure plate 2211 downward pressure, crushing the slab on the top of the feeding table 211, so as to realize the separation of the slab, expose the internal steel bar, then, the hydraulic push rod 216 drives the push plate 218 reset, in order to place the next slab on the inner wall of the automatic conveying sleeve 212, and repeat the above steps for conveying.

[0035] Please refer to Figures 7-10The material distribution mechanism 3 includes a material distribution mechanism housing 31. Control plates 32 are movably connected to the left and right sides of the inner side of the material distribution mechanism housing 31. The material distribution mechanism housing 31 includes a discharge pipe 311. Rebar collection bins 312 are fixedly connected to the bottom of the left and right sides of the discharge pipe 311. Side plate connecting blocks 313 are fixedly connected to the outer sides of each of the two rebar collection bins 312. Side plates 314 are fixedly connected to the outer sides of each of the two side plate connecting blocks 313. A third liquid is fixedly connected to the top of each of the two side plates 314. The push rod connecting block 317 has a third hydraulic push rod 318 fixedly connected to the inner side of each of the two third hydraulic push rod connecting blocks 317. Two hinge plates 315 are fixedly connected to the inner side of each of the two side upright plates 314. Hinge grooves 316 are provided at the top and bottom of the inner sides of the two sets of hinge plates 315. The top of the feed pipe 311 is aligned with the bottom of the feed trough 219. Both control plates 32 include control side plates 321. Two rotating rods 322 are rotatably connected to the top and bottom of the outer sides of the two control side plates 321. Each of the four sets of rotating rods 322 is rotatably connected to a bidirectional hinge rod 323 on the side away from the control side plate 321. Each of the four sets of bidirectional hinge rods 323 is rotatably connected to a second rotating rod 324 on the side away from the rotating rods 322. Each of the four sets of second rotating rods 324 is rotatably connected to an opening / closing plate 328 on the inner side of the side away from the bidirectional hinge rods 323. The middle portion of the outer wall of each of the four sets of bidirectional hinge rods 323 is rotatably connected to the inner wall of each of the four sets of hinge slots 316. Magnetic catchers are fixedly connected to the inner bottom of each of the two control side plates 321. 326, each of the two opening and closing plates 328 and the magnetic suction device 326 has a magnetic suction device moving groove 327 on one side. The top center of each of the two opening and closing plates 328 is fixedly connected to an opening and closing plate top connecting block 325. The outer walls of the two opening and closing plate top connecting blocks 325 are respectively fixedly connected to the inner side of the two third hydraulic push rods 318. The top inner side of each of the two opening and closing plates 328 is fixedly connected to a cover plate 329. The inner sides of the two cover plates 329 are fitted together. The bottom of the two cover plates 329 is movably connected to the top of the feed pipe 311.

[0036] After the stone and steel bars are separated, they are conveyed together to the discharge chute 219. At this time, the two third hydraulic push rods 318 are activated, pulling the top connecting block 325 of the opening and closing plate, which in turn drives the opening and closing plate 328 and the cover plate 329 to move outward, thereby disconnecting the top of the discharge chute 219 from the top of the discharge pipe 311, so that the stone can fall into the interior of the crushed stone collection bin 4 through the discharge chute 219 and the discharge pipe 311.

[0037] In the process of moving the opening and closing plate 328 outward, the front and rear groups of second rotating rods 324 push the bidirectional hinged rods 323 to rotate on the inner wall of the hinged groove 316, and the bidirectional hinged rods 323 push the rotating rods 322, so that the rotating rods 322 push the control side plate 321 and the magnetic attractor 326 to move to the inner side of the opening and closing plate 328. At this time, the two magnetic attractors 326 are activated to clamp the fallen stones and steel bars in the inner wall of the blanking pipe 311, and the steel bars are attracted to the surface of the two magnetic attractors 326, so as to realize the separation of the stones and the steel bars. The separated steel bars are guided into the steel bar collecting bin 312 through the cooperative action of the two side stand connecting blocks 313 and the side stands 314.

[0038] Working principle: when it is necessary to separate the waste concrete plate, first place the waste concrete plate on the top of the conveying belt 213 on the inner wall of the automatic conveying sleeve 212, and then convey the concrete stone plate to the inner wall of the feeding table 211 through the conveying belt 213. After that, the push plate push-pull block 217 is pulled on the inner wall of the sliding groove 214 by starting the hydraulic push rod 216, so as to drive the push plate 218 to push the stone plate to the bottom of the crushing pressure plate 2211. At this time, the second hydraulic push rod 223 is started to drive the crushing pressure plate 2211 to push down. When the crushing pressure plate 2211 moves downward, the crushing pressure plate 2211 slides on the outer wall of the sliding rod 228 through the two crushing pressure plate connecting rods 2210, so as to ensure the stability and direction of the downward movement of the crushing pressure plate 2211. The sliding rod 227 further reinforces the stability of the downward movement by sliding on the inner wall of the sliding rod connecting block 224. The crushing pressure plate 2211 moves downward to press the stone plate on the top of the feeding table 211, and then crushes and separates the stone plate to expose the steel bars inside the stone plate. After that, the hydraulic push rod 216 drives the push plate 218 to reset, and the next stone plate is placed on the inner wall of the automatic conveying sleeve 212 and continues the above steps to convey;

[0039] When the separated stones and the steel bars are conveyed to the discharging groove 219, the two third hydraulic push rods 318 are started to pull the top connecting blocks 325 of the opening and closing plates 328 and the cover plates 329 to move outward, so as to remove the connection between the discharging groove 219 and the top of the discharging pipe 311, and the stones can fall into the interior of the stone collecting bin 4 through the discharging groove 219 and the discharging pipe 311. When the two opening and closing plates 328 move outward, the second rotating rods 324 of the front and rear groups push the bidirectional hinged rods 323 to rotate on the inner wall of the hinge groove 316, so as to push the rotating rods 322 through the bidirectional hinged rods 323, and the rotating rods 322 push the control side plates 321 and the magnetic attractors 326 to move to the inner side of the two opening and closing plates 328. At this time, the two magnetic attractors 326 are started to clamp the stones and the steel bars falling on the inner wall of the discharging pipe 311, and the steel bars are attracted on the surface of the two magnetic attractors 326, so as to separate the stones and the steel bars, and the separated steel bars are guided into the steel bar collecting bin 312 through the joint action of the two side stand plate connecting blocks 313 and the side stands 314.

[0040] It will be obvious to a person skilled in the art that, without departing from the spirit or essential characteristics of the application, the present application can be implemented in other specific forms. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the description given above, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the scope of the claims.

Claims

1. A centralized sorting and recycling device for construction waste, characterized in that: Including base mechanism (1), the front side of base mechanism (1) is fixedly connected with gravel collection bin (4), the top of base mechanism (1) is fixedly connected with shell (5), the inner wall of shell (5) is fixedly connected with feeding and crushing mechanism (2), the top of gravel collection bin (4) is fixedly connected with distributing mechanism (3); The feeding and crushing mechanism (2) includes a feeding mechanism (21), the feeding mechanism (21) includes a feeding table (211), the outer wall of the feeding mechanism (21) is fixedly connected with a crushing mechanism (22), the front side of the feeding table (211) extends to the front side of the outer wall of the shell (5) and the bottom is provided with a discharge slot (219); The distributing mechanism (3) includes a distributing mechanism shell (31), the left and right sides of the inner side of the distributing mechanism shell (31) are movably connected with control panels (32), the distributing mechanism shell (31) includes a discharge pipe (311), the left and right sides of the bottom of the discharge pipe (311) are fixedly connected with steel bar collection bins (312), the outer sides of the two steel bar collection bins (312) are fixedly connected with side stand plate link blocks (313), the outer sides of the two side stand plate link blocks (313) are fixedly connected with side stand plates (314), the top of the two side stand plates (314) are fixedly connected with third hydraulic push rod connecting blocks (317), the inner sides of the two third hydraulic push rod connecting blocks (317) are fixedly connected with third hydraulic push rods (318), the inner sides of the two side stand plates (314) are fixedly connected with two hinged plates (315), the top and bottom of the inner sides of the two groups of hinged plates (315) are provided with hinged grooves (316), and the top of the discharge pipe (311) is aligned with the bottom of the discharge slot (219); The two control panels (32) each include a control side plate (321), the top and bottom of the outer side of the two control side plates (321) are rotatably connected with two rotating rods (322), the sides away from the control side plates (321) of the four groups of rotating rods (322) are rotatably connected with bidirectional hinge rods (323), the sides away from the rotating rods (322) of the four groups of bidirectional hinge rods (323) are rotatably connected with second rotating rods (324), the inner sides of the sides away from the bidirectional hinge rods (323) of the four groups of second rotating rods (324) are rotatably connected with opening and closing plates (328), the outer walls of the four groups of bidirectional hinge rods (323) are rotatably connected to the inner walls of the four groups of hinged grooves (316), the inner sides of the bottoms of the two control side plates (321) are fixedly connected with magnetic attractors (326), and the sides of the two opening and closing plates (328) aligned with the magnetic attractors (326) are provided with magnetic attractor moving grooves (327).

2. The device for centralized classification and recycling of construction and demolition waste according to claim 1, characterized in that: The left and right sides of the bottom of the feeding table (211) are fixedly connected with connecting frames (215), the front sides of the two connecting frames (215) are fixedly connected on the left and right sides of the bottom of the rear side of the shell (5), the front and rear sides of the left and right sides of the feeding table (211) are fixedly connected with L-shaped connecting plates (2110), the sides away from the feeding table (211) of the two groups of L-shaped connecting plates (2110) are fixedly connected with connecting rods (2111), and the left and right sides of the inner wall of the shell (5) are fixedly connected with the connecting rods (2111) away from the L-shaped connecting plates (2110).

3. The device for centralized classification and recycling of construction and demolition waste according to claim 2, characterized in that: The rear side of the feeding table (211) extends to the rear side of the outer wall of the shell (5) and is fixedly connected with an automatic conveying sleeve (212) on the right side, the inner wall bottom of the automatic conveying sleeve (212) is provided with a conveying track (213), the rear side of the inner wall bottom of the feeding table (211) is provided with a sliding groove (214), the bottom of the feeding table (211) is fixedly connected with a hydraulic push rod (216), the rear end of the hydraulic push rod (216) is fixedly connected with a push plate push-pull block (217), the outer wall of the push plate push-pull block (217) is slidingly connected with the inner wall of the sliding groove (214), and the top of the push plate push-pull block (217) extends to the inner wall of the feeding table (211) through the sliding groove (214) and is fixedly connected with a push plate (218). The outer wall of the push plate (218) is slidingly connected with the inner wall of the feeding table (211).

4. The device for centralized classification and recycling of construction and demolition waste according to claim 1, characterized in that: The crushing mechanism (22) comprises two crushing plates (221), the outer sides of the two crushing plates (221) are fixedly connected with sliding rod connecting blocks (224), the inner sides of the two crushing plates (221) are fixedly connected with two hydraulic push rod connecting rods (222), the inner walls of the two hydraulic push rod connecting rods (222) are fixedly connected with second hydraulic push rods (223), the inner walls of the left and right four groups of sliding rod connecting blocks (224) are slidingly connected with sliding rods (227), the outer sides of the top two groups of sliding rod connecting blocks (224) are fixedly connected with top connecting vertical rods (225), and the tops of the two groups of top connecting vertical rods (225) are fixedly connected with the inner wall top of the shell (5).

5. The device for centralized classification and recycling of construction and demolition waste according to claim 4, characterized in that: The left and right sides of the bottom of the two crushing plates (221) are fixedly connected with sliding rod connecting blocks (226), the bottoms of the front and rear two groups of sliding rod connecting blocks (226) are fixedly connected with sliding rods (228), the bottoms of the front and rear two groups of sliding rods (228) are fixedly connected with sliding rod connecting bottom blocks (229), the inner sides of the front and rear two groups of sliding rod connecting bottom blocks (229) are fixedly connected with the bottoms of the left and right sides of the feeding table (211), and the bottoms of the front and rear two groups of sliding rods (227) are fixedly connected with crushing pressure plate connecting rods (2210). The bottoms of the two crushing pressure plate connecting rods (2210) are fixedly connected with crushing pressure plates (2211), and the left and right side inner walls of the two crushing pressure plate connecting rods (2210) are slidingly connected with the outer walls of the front and rear two groups of sliding rods (228).

6. The device for centralized classification and recycling of construction and demolition waste according to claim 1, characterized in that: The top middle part of each of the two opening and closing plates (328) is fixedly connected with an opening and closing plate top connecting block (325), and the outer walls of the two opening and closing plate top connecting blocks (325) are fixedly connected to the inner sides of the two third hydraulic push rods (318) respectively. The inner sides of the two cover plates (329) are attached, and the bottoms of the two cover plates (329) are movably connected to the top of the discharging pipe (311).

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