A dust-proof and environmentally friendly waste recycling device for construction.

Abstract

This invention discloses a dust-proof and environmentally friendly construction waste recycling device in the field of construction waste recycling technology. It includes a magnetic mechanism and a crushing mechanism inside the outer shell. The crushing mechanism includes a cylindrical lifting block with multiple open cylindrical lifting block grooves at its bottom. The magnetic mechanism includes a cross-shaped magnetic suction frame. Both the lifting block grooves and the cross-shaped magnetic suction frame have independently controlled electromagnets built into them. This invention uses the magnetic suction mechanism and the crushing mechanism to lift and drop the cylindrical lifting block onto the concrete, effectively crushing it. Then, by raising the cross-shaped magnetic suction frame from the cylindrical lifting block and rotating it, the top layer of concrete is dispersed, and metal waste in the concrete is adsorbed layer by layer. This process is repeated until all the metal waste in the concrete is adsorbed, solving the problem of separating concrete and metal waste through crushing.

Description

Technical Field

[0001] This invention relates to the field of construction waste recycling technology, specifically to a dustproof and environmentally friendly construction waste recycling device. Background Technology

[0002] Construction waste refers to waste generated during construction, including slag, discarded materials, silt, and other waste produced by construction units or during demolition and repair. Classified by source, construction waste can be divided into engineering slag, decoration waste, demolition waste, engineering mud, etc. Classified by composition, construction waste can be divided into slag, concrete, gravel, brick and tile fragments, waste mortar, mud, asphalt blocks, waste plastics, waste metals, waste bamboo and wood, etc.

[0003] While concrete from construction waste can be recycled, it often contains small metal materials such as steel bars, screws, and nuts. These materials need to be separated. Existing recycling systems crush the concrete into smaller pieces to remove larger metals, but this fails to separate the smaller metals, severely impacting the concrete's quality. Furthermore, the crushed concrete becomes compacted at the bottom, making it difficult for magnetic attraction to remove the metals, leaving them trapped. Removing the bottom metals requires further dispersing of the concrete, which also hinders the removal of the metals from the bottom.

[0004] To address this issue, the present invention designs a dustproof and environmentally friendly waste recycling device for construction, which solves the above problems through a magnetic mechanism, a crushing mechanism, a feeding mechanism, a cleaning mechanism, a dust suction mechanism, a rotating mechanism, a metal discharge mechanism, and a water circulation mechanism. Summary of the Invention

[0005] The purpose of this invention is to provide a dustproof and environmentally friendly waste recycling device for construction, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a dustproof and environmentally friendly waste recycling device for construction, comprising a magnetic mechanism and a crushing mechanism inside a shell. The crushing mechanism includes a top cover, a crushing motor fixedly connected to the center of the inner wall of the top cover, a multi-segment telescopic crushing rod fixedly connected to the bottom of the crushing motor, a cylindrical lifting block at the bottom of the multi-segment telescopic crushing rod, and multiple open cylindrical lifting block grooves at the bottom of the cylindrical lifting block. The magnetic mechanism includes a protective cover, a protective cover on the outer wall of the cylindrical lifting block, multiple grooves inside the protective cover, multiple fixedly connected iron-sweeping air pumps inside the grooves, multiple fixedly connected iron-sweeping multi-segment telescopic rods at the bottom of the iron-sweeping multi-segment telescopic rods, multiple fixedly connected cover-attaching telescopic rods at the bottom of the iron-sweeping multi-segment telescopic rods, and a fixedly connected cross magnetic suction frame at the bottom of the cover-attaching telescopic rods. Each of the lifting block grooves and the cross magnetic suction frame contains an independently controlled electromagnet.

[0007] As a further embodiment of the present invention, a feeding mechanism is provided on the left side of the outer casing. The feeding mechanism includes a feeding port, an feeding port filter screen is provided inside the feeding port, a feeding port drain pipe is provided at the bottom of the feeding port, the ports of the feeding port diversion pipe and the feeding port drain pipe are connected to the feeding port filter screen, a feeding micro-spray nozzle is provided above the feeding port filter screen, a feeding port water supply pipe is provided on the upper left side of the feeding port, and the feeding micro-spray nozzle is connected to the feeding port water supply pipe.

[0008] As a further embodiment of the present invention, the interior of the outer shell is provided with a material cleaning mechanism for cleaning materials. The material cleaning mechanism includes a first inner cover, inside which is provided a flipping platform. Inside the flipping platform is a flipping rod fixedly connected to it. A flipping motor is connected to the left side of the flipping rod. The flipping motor drives the flipping platform to flip. A base is provided at the bottom of the first inner cover. A rotary motor is provided below the base. The rotary motor is located at the center of the base. A rotating rod is vertically fixed to the motor shaft of the rotary motor. A suction paddle is provided at the top of the rotating rod. A filter screen is rotated in the middle section of the rotating rod. A triangular push rod is provided at the lower end of the rotating rod. Multiple concrete discharge ports are provided on the side of the first inner cover.

[0009] As a further embodiment of the present invention, the interior of the outer shell is provided with a dust suction mechanism for dust suction, the dust suction mechanism includes a dust suction pipe, a dust suction port, and a dust discharge port. A dust suction port is provided above the flipping table, and a dust discharge port is provided above the suction paddle. A dust suction pipe for connecting the dust suction port and the dust discharge port is provided on the outside of the first inner cover.

[0010] As a further embodiment of the present invention, the inner top of the outer casing is provided with a rotating mechanism, the rotating mechanism including a rotating motor and a rotating shaft, a rocker arm radially connected to the rotating shaft is provided above the rotating motor, the inner top of the outer casing is provided with a slider groove, the slider groove and the rocker arm are on the same central axis, the side wall of the slider groove facing the rocker arm is provided with an opening for the rocker arm to slide through, a circular slider is fixedly connected to the outer end of the rocker arm, the bottom end of the circular slider is fixed on the upper part, and the circular slider slides inside the slider groove by the rotation of the rocker arm.

[0011] As a further embodiment of the present invention, the interior of the outer shell is provided with a metal discharge mechanism, the metal discharge mechanism includes a second inner cover, the middle section of the second inner cover is provided with an inwardly opening annular dust removal nozzle, the lower end of the second inner cover is provided with a fixedly connected inclined filter screen, the right side of the second inner cover is provided with a metal discharge port, the lower part of the second inner cover is provided with a water collection tray, and the rear end of the water collection tray is provided with an open drain outlet.

[0012] As a further embodiment of the present invention, a diversion block is connected above the concrete discharge port, and a feed inlet diversion pipe for communicating with the diversion block is provided at the bottom of the feed inlet.

[0013] As a further embodiment of the present invention, the interior of the outer shell is provided with a water circulation mechanism, the water circulation mechanism includes a water tank, the front end of the water tank is provided with a fixedly connected water pump, the drain end of the water pump is connected to an inlet water supply pipe and a dust removal water supply pipe, the pumping end of the water pump is connected to the bottom of the water tank, and the inlet drain pipe and the metal outlet drain pipe are both connected to the top of the water tank through the water pump.

[0014] As a further embodiment of the present invention, an annular groove is provided above the protective cover, and an annular slider is provided in the groove, with the top of the annular slider fixed to the bottom surface of the top cover.

[0015] As a further embodiment of the present invention, a first U-shaped baffle is provided at the upper left end of the first inner cover, and a second U-shaped baffle is provided above the second inner cover.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This invention uses a magnetic suction mechanism and a crushing mechanism to lift and crush a cylindrical lifting block onto concrete, effectively crushing the concrete. Then, by raising a cross-shaped magnetic suction frame from the cylindrical lifting block and rotating it, the top layer of concrete is dispersed, and metal waste in the concrete is adsorbed layer by layer. This process is repeated until all the metal waste in the concrete is adsorbed, thus solving the problem of separating concrete and metal waste through crushing and crushing.

[0018] 2. This invention reduces dust generated during the feeding process by using a feeding mechanism, while saving water used for dust control by allowing the water source to be continuously recycled. The diversion pipe at the feed inlet can also prevent dust from being discharged, thus solving the problem of dust generated during the concrete feeding process. It can effectively reduce dust and also allows for water recycling, saving water and reducing costs.

[0019] 3. This invention uses a tilting table to bring concrete to the cleaning mechanism, allowing the concrete to reach the base layer by layer before being discharged from the concrete outlet. This method ensures smooth discharge of concrete and prevents blockages caused by continuous operation.

[0020] 4. This invention uses a dust-collecting mechanism to suck in the dust generated during crushing, preventing the generation of large amounts of dust during operation from affecting air pollution and harming the human body, thus solving the problem of generating large amounts of dust during operation.

[0021] 5. The present invention solves the problem of separating concrete and metal by using a rotating mechanism to collect metal and concrete separately.

[0022] 6. The present invention uses a metal mechanism to clean the dust off the metal as it falls, which facilitates the refining of the metal. After the metal falls onto the inclined filter screen, the water and metal are separated, which solves the problem of dust on the metal and separates the water and metal at the same time.

[0023] 7. This invention uses a dust-proof nozzle to suppress the dust generated during the discharge of concrete, thus solving the problem of dust generated during discharge and effectively preventing dust pollution of the air and harm to on-site workers.

[0024] 8. The present invention uses a water circulation mechanism to recycle water, thereby saving water. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0027] Figure 3 This is a side view of the internal structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the feeding mechanism of the present invention;

[0029] Figure 5 This is a schematic diagram of the internal structure of the first inner cover of the present invention;

[0030] Figure 6This is a schematic diagram of the magnetic mechanism and crushing mechanism of the present invention;

[0031] Figure 7 This is a schematic diagram of the metal discharge mechanism of the present invention.

[0032] The attached diagram lists the components represented by each number as follows:

[0033] 1. Outer shell; 2. Rotating motor; 21. Rotating shaft; 22. Swing rod; 23. Circular slider; 24. Ring block; 25. Top cover; 251. Circular slider; 26. Protective cover; 261. Iron-sweeping air pump; 262. Iron-sweeping multi-segment telescopic rod; 263. Cover telescopic rod; 271. Crushing motor; 272. Crushing multi-segment telescopic rod; 281. Connecting plate; 282. Cylindrical lifting block; 281. Cylindrical lifting block groove; 29. ​​Cross magnetic suction frame; 30. Feed inlet; 31. Feed inlet filter screen; 32. Feed inlet diverter pipe; 321. Diverter block; 33. Feed inlet drain pipe; 34. Feed inlet water supply pipe; 35. Feed micro-spray nozzle; 4. Inner cover 4, first U-shaped baffle 401, ash suction pipe 41, ash suction port 411, ash discharge port 412, tilting table 42, tilting motor 421, tilting rod 422, fixing block 423, suction paddle 43, rotating filter screen 44, triangular push rod 45, bottom layer 451, rotating motor 46, rotating rod 461, concrete discharge port 47, water tank 5, water pump 51, metal discharge drain pipe 52, second inner cover 53, second U-shaped baffle 531, annular cleaning nozzle 54, cleaning water supply pipe 541, inclined filter screen 55, water collection tray 56, metal discharge port 57. Detailed Implementation

[0034] Please see Figures 1 to 7 This invention provides a technical solution: a dustproof and environmentally friendly waste recycling device for construction, comprising an outer shell 1 with a magnetic mechanism and a crushing mechanism inside. The crushing mechanism includes a top cover 25, with a crushing motor 27 fixedly connected to the center of the inner wall of the top cover 25. The bottom of the crushing motor 27 is fixedly connected to a multi-segment telescopic crushing rod 271. The bottom of the multi-segment telescopic crushing rod 271 is provided with a cylindrical lifting block 28. The bottom of the cylindrical lifting block 28 is provided with multiple open cylindrical lifting block grooves 281. The magnetic mechanism includes a protective cover 26, with a protective cover 26 on the outer wall of the cylindrical lifting block 28. The protective cover 26 has multiple grooves inside, with multiple fixedly connected iron-sweeping air pumps 261 inside the grooves. The bottom of the iron-sweeping air pumps 261 is provided with multiple fixedly connected multi-segment telescopic iron-sweeping rods 262. The bottom of the multi-segment telescopic iron-sweeping rods 262 is provided with multiple fixedly connected cover-attaching telescopic rods 263. The bottom of the cover-attaching telescopic rods 263 is provided with a fixedly connected cross magnetic suction frame 29. The lifting block grooves 281 and the cross magnetic suction frame 29 are both equipped with independently controlled electromagnets.

[0035] During operation, concrete enters the treatment area, and the magnetic and crushing mechanisms begin to operate. The multi-segment telescopic rod 271 drives the cylindrical lifting block 28 to move vertically downwards until it strikes the concrete below. Simultaneously, the iron-sweeping air pump 261 operates, driving the multi-segment telescopic rod 262, the cover telescopic rod 263, and the cross magnetic suction frame 29 to move vertically downwards, parallel to the cylindrical lifting block 28. After striking the concrete, the crushing motor 27 operates, driving the multi-segment telescopic rod 271, the cylindrical lifting block 28, the connecting plate 272, the iron-sweeping air pump 261, the multi-segment telescopic rod 262, the cover telescopic rod 263, and the cross magnetic suction frame 29 to rotate. The cylindrical lifting block 28 rotates and crushes the upper layer of concrete, while the cross magnetic suction frame 29... The magnetic chuck 29 disengages from the groove 281 of the cylindrical lifting block, and the cylindrical lifting block 28 rises to its initial state. The cross magnetic chuck 29 continues to rotate in the concrete. At this time, the electromagnet inside the cross magnetic chuck 29 is energized to generate magnetic attraction and begins to attract the upper layer of metal. After all the upper layer of metal has been attracted, the cross magnetic chuck 29 begins to rise. When it rises into the groove 281 of the cylindrical lifting block, the electromagnet inside the cross magnetic chuck 29 is de-energized, and the electromagnet inside the cylindrical lifting block 28 is energized. All the metal waste attracted by the cross magnetic chuck 29 is attracted and stored by the groove 281 of the cylindrical lifting block. By repeating this process, the concrete will be cleaned layer by layer of internal metal waste, and at the same time, the concrete will be completely crushed.

[0036] Therefore, this invention uses a magnetic suction mechanism and a crushing mechanism to lift and crush the cylindrical lifting block 28 onto the concrete, thus effectively crushing the concrete. Then, by raising the cross magnetic suction frame 29 out of the cylindrical lifting block 28 and rotating it, the top layer of concrete is dispersed, and the metal waste in the concrete is adsorbed layer by layer. This process is repeated until all the metal waste in the concrete is adsorbed, thus solving the problem of separating concrete and metal waste through crushing and crushing.

[0037] As a further embodiment of the present invention, a feeding mechanism is provided on the left side of the outer casing 1. The feeding mechanism includes a feeding port 3. A feeding port filter 31 is provided inside the feeding port 3. A feeding port diversion pipe 32 and a feeding port drain pipe 33 are provided at the bottom of the feeding port 3. The ports of the feeding port diversion pipe 32 and the feeding port drain pipe 33 are connected to the feeding port filter 31. A feeding micro-spray nozzle 35 is provided above the feeding port filter 31. A feeding port water supply pipe 34 is provided on the upper left side of the feeding port 3. The feeding micro-spray nozzle 35 is connected to the feeding port water supply pipe 34.

[0038] During operation, concrete is poured into the inlet 3. At this time, the feeding mechanism starts to operate. The water supply pipe 34 of the inlet supplies water to the micro-spray nozzle 35. The micro-spray nozzle 35 sprays a small amount of water downward. After passing through the concrete, the water sprayed from the micro-spray nozzle 35 flows to both sides of the inlet filter screen 31. The inlet filter screen 31 prevents concrete blocks from flowing in. After passing through the inlet filter screen 31, the water flows into the inlet drain pipe 33. The water flowing into the inlet drain pipe 33 is continuously recycled to the micro-spray nozzle 35. The fixing block 423 at the bottom of the inlet 3 is used to fix the flipping motor 421.

[0039] Therefore, the present invention reduces dust by feeding the material through the feeding mechanism and also saves water used for dust prevention, allowing the water source to be continuously recycled.

[0040] As a further embodiment of the present invention, the interior of the outer shell 1 is provided with a cleaning mechanism for cleaning materials. The cleaning mechanism includes a first inner cover 4, the interior of the first inner cover 4 is provided with a flipping table 42, the interior of the flipping table 42 is provided with a fixedly connected flipping rod 422, the left side of the flipping rod 422 is provided with a flipping motor 421, the flipping motor 421 drives the flipping table 42 to flip, the bottom of the first inner cover 4 is provided with a base 451, the bottom of the base 451 is provided with a rotary motor 46, the rotary motor 46 is located at the center of the base 451, the motor shaft of the rotary motor 46 is vertically fixed with a rotating rod 461, the top of the rotating rod 461 is provided with a suction paddle 43, the middle section of the rotating rod 461 is a rotating filter screen 44, the lower end of the rotating rod 461 is provided with a triangular push rod 45, the side of the first inner cover 4 is provided with a plurality of concrete discharge ports 47, and the concrete discharge ports 47 are provided with a close-fitting diversion block 321.

[0041] During operation, the concrete is on the upper surface of the tilting table 42. The tilting motor 421 drives the tilting rod 422 to tilt, and the tilting rod 422 drives the tilting table 42 to tilt. The concrete is tilted onto the suction paddle 43. Under the slow rotation of the suction paddle 43, the concrete falls from the gap of the suction paddle 43 onto the surface of the rotating filter screen 44. The rotating motor 46 drives the rotating rod 461 to rotate, and the rotating rod 461 drives the rotating filter screen 44 to rotate, so that the concrete falls evenly from the rotating filter screen 44 onto the surface of the base 451. The triangular push rod 45 also rotates under the drive of the rotating motor 46, pushing the concrete to move. At this time, the concrete is pushed to the concrete discharge port 47 and discharged from the outlet of the concrete discharge port 47.

[0042] Therefore, the present invention solves the problem of smooth concrete discharge by turning the tilting table 42 to bring the concrete to the cleaning mechanism, so that the concrete reaches the base 451 layer by layer and is discharged from the concrete discharge port 47. This method ensures that the concrete can be discharged smoothly and will not be blocked due to continuous operation.

[0043] As a further embodiment of the present invention, the interior of the outer shell 1 is provided with a dust suction mechanism for dust suction. The dust suction mechanism includes a dust suction pipe 41, a dust suction port 411, and a dust discharge port 412. The dust suction port 411 is provided above the tilting table 42, and the dust discharge port 412 is provided above the suction paddle 43. The outer side of the first inner cover 4 is provided with a dust suction pipe 41 for connecting the dust suction port 411 and the dust discharge port 412.

[0044] During operation, after crushing, dust will be generated. At this time, the suction paddle 43 will start to operate. Before the concrete is turned over, the suction paddle 43 will rotate rapidly to generate suction. The suction will reach the suction port 411 from the dust outlet 412. The dust generated during crushing will be sucked into the dust suction pipe 41 by the dust suction port 411 and then discharged from the dust outlet 412, so that a small amount of dust is generated during crushing.

[0045] Therefore, this invention uses a dust-collecting mechanism to suck in the dust generated during crushing, preventing the generation of large amounts of dust during operation from affecting air pollution and harming the human body, thus solving the problem of generating large amounts of dust during operation.

[0046] As a further embodiment of the present invention, a rotating mechanism is provided on the inner top of the outer casing 1. The rotating mechanism includes a rotating motor 2 and a rotating shaft 21. A rocker arm 22 is radially connected to the rotating shaft 21 above the rotating motor 2. An annular block 24 is provided on the inner top of the outer casing 1. The annular block 24 and the rocker arm 22 are on the same central axis. An opening for the rocker arm 22 to slide through is provided on the side wall of the annular block 24 facing the rocker arm. A circular slider 23 is fixedly connected to the outer end of the rocker arm 22. The bottom end of the circular slider 23 is fixed on 25. The circular slider 23 can slide inside the annular block 24 by rotating the rocker arm 22.

[0047] During operation, after the concrete is crushed and metal is attracted, the rotating motor 2 drives the rotating shaft 21 to rotate. The rotating shaft 21 drives the swing rod 22 and the circular slider 23 to rotate. The circular slider 23 slides inside the ring block 24. When the swing rod 22 swings, the circular slider 23 reaches the right end of the ring block 24. When the circular slider 23 can no longer move, the operation stops. When all the metal inside the top cover 25 falls off, the rotating mechanism resets.

[0048] Therefore, the present invention solves the problem of separating concrete and metal by using a rotating mechanism to collect metal and concrete separately.

[0049] As a further embodiment of the present invention, the interior of the outer shell 1 is provided with a metal discharge mechanism, which includes a second inner cover 53. The middle section of the second inner cover 53 is provided with an annular dust removal nozzle 54 with an inward opening. The lower end of the second inner cover 53 is provided with a fixedly connected inclined filter screen 55. The right side of the second inner cover 53 is provided with a metal discharge port 57. The lower part of the second inner cover 53 is provided with a water collection plate 56. The rear end of the water collection plate 56 is provided with an open metal discharge drain pipe 52.

[0050] During operation, the adsorbed metal is carried to the air above the second inner cover 53. When it reaches the air above the second inner cover 53, the magnetic attraction mechanism is de-energized and loses its magnetism, and the metal falls. When the metal falls to the middle of the second inner cover 53, the annular dust removal nozzle 54 starts to operate to clean the dust on the metal. Finally, it falls to 55, and the metal slides out from the metal outlet 57. The filtered water will flow from the water collection plate 56 into the opening of the metal outlet drain pipe 52.

[0051] Therefore, the present invention uses a metal mechanism to clean the dust off the metal as it falls, which facilitates the refining of the metal. After the metal falls onto the inclined filter screen 55, the water and metal are separated, thus solving the problem of dust on the metal and separating the water and metal at the same time.

[0052] As a further embodiment of the present invention, a diversion block 321 is connected above the concrete discharge port 47, and an inlet diversion pipe 32 for communicating with the diversion block 321 is provided at the bottom of the inlet port 3.

[0053] During operation, part of the drainage from the feeding mechanism is introduced into the concrete discharge port 47 through the feed inlet diversion pipe 32 and the diversion block 2. Thus, when the concrete is discharged from the concrete discharge port 47, the dust generated during the discharge can be washed away by the introduced water flow, thereby achieving the effect of dust reduction during discharge.

[0054] Therefore, this invention uses a dust-proof nozzle to reduce the dust generated during the discharge of concrete from the discharge port 47 by draining water from the feeding mechanism. This solves the problem of dust generated during discharge, effectively preventing dust pollution and harm to on-site personnel. It also allows for water recycling, saving water and reducing costs.

[0055] As a further embodiment of the present invention, the interior of the outer shell 1 is provided with a water circulation mechanism, which includes a water tank 5. A water pump 51 is fixedly connected to the front end of the water tank 5. The drain end of the water pump 51 is connected to the inlet water supply pipe 34 and the dust removal water supply pipe 541. The pumping end of the water pump 51 is connected to the bottom of the water tank 5. The inlet drain pipe 33 and the metal outlet drain pipe 52 are both connected to the top of the water tank 5 through the water pump.

[0056] During operation, the water tank 5 contains water. The water pump 51 draws water from the water tank 5 and discharges it to the feed inlet water supply pipe 34 and the dust removal water supply pipe 541. The used water will be discharged from the feed inlet drain pipe 33 and the metal discharge drain pipe 52 to the water tank 5 for recycling through an independent water pump, allowing the water to be reused.

[0057] Therefore, the present invention saves water by recycling water through a water circulation mechanism.

[0058] As a further embodiment of the present invention, an annular groove is provided above the protective cover 26, and an annular slider 251 is provided in the groove, with the top of the annular slider 251 fixed to the bottom surface of the top cover 25.

[0059] When in operation, the protective cover 26 rotates, and the annular slider 251 between the top cover 25 and the protective cover 26 allows the protective cover 26 to rotate.

[0060] As a further embodiment of the present invention, a first U-shaped baffle 401 is provided at the upper left end of the first inner cover 4, and a second U-shaped baffle 531 is provided above the second inner cover 53.

[0061] During operation, the first U-shaped baffle 401 and the second U-shaped baffle 531 are provided to prevent the rotating mechanism from swinging too much during rotation, effectively limiting the swing amplitude.

Claims

1. A dustproof and environmentally friendly waste recycling device for construction, comprising a shell (1), wherein the shell (1) is provided with a magnetic mechanism and a crushing mechanism inside, characterized in that: The crushing mechanism includes a top cover (25), with a crushing motor (27) fixedly connected to the center of the inner wall of the top cover (25). A multi-segment telescopic crushing rod (271) is fixedly connected to the bottom of the crushing motor (27). A cylindrical lifting block (28) is located at the bottom of the multi-segment telescopic crushing rod (271), and multiple cylindrical lifting block grooves (281) are located at the bottom of the cylindrical lifting block (28). The magnetic mechanism includes a protective cover (26), with the outer wall of the cylindrical lifting block (28) covered by the protective cover (26). The inner wall of the protective cover (26) contains... The protective cover (26) has multiple grooves. Inside the grooves, multiple fixedly connected iron-sweeping air pumps (261) are provided. At the bottom of the iron-sweeping air pumps (261), multiple fixedly connected iron-sweeping multi-segment telescopic rods (262) are provided. At the bottom of the iron-sweeping multi-segment telescopic rods (262), multiple fixedly connected cover-attaching telescopic rods (263) are provided. At the bottom of the cover-attaching telescopic rods (263), a fixedly connected cross magnetic suction bracket (29) is provided. Both the cylindrical lifting block groove (281) and the cross magnetic suction bracket (29) have independently controlled electromagnets built in. During operation, when concrete enters the area to be treated, the magnetic mechanism and crushing mechanism begin to operate. The multi-segment telescopic rod (271) drives the cylindrical lifting block (28) to move vertically downwards until it hits the concrete below. At the same time, the iron-sweeping air pump (261) operates, driving the iron-sweeping multi-segment telescopic rod (262), the cover telescopic rod (263), and the cross magnetic suction frame (29) to move vertically downwards, keeping parallel to the cylindrical lifting block (28). After hitting the concrete, the crushing motor (27) operates, driving the multi-segment telescopic rod (271), the cylindrical lifting block (28), the iron-sweeping air pump (261), the iron-sweeping multi-segment telescopic rod (262), the cover telescopic rod (263), and the cross magnetic suction frame (29) to rotate. (28) The upper layer of concrete is crushed by rotation. At the same time, the cross magnetic chuck (29) is disengaged from the groove (281) of the cylindrical lifting block. The cylindrical lifting block (28) rises to the initial state. The cross magnetic chuck (29) continues to rotate in the concrete. At this time, the electromagnet in the cross magnetic chuck (29) is energized to generate magnetic attraction and begins to attract the upper layer of metal. After all the upper layer of metal is attracted, the cross magnetic chuck (29) begins to rise. When it rises into the groove (281) of the cylindrical lifting block, the electromagnet in the cross magnetic chuck (29) is de-energized, and the electromagnet in the cylindrical lifting block (28) is energized. All the metal waste attracted by the cross magnetic chuck (29) is attracted and stored by the groove (281) of the cylindrical lifting block. The outer shell (1) is provided with a cleaning mechanism for cleaning materials. The cleaning mechanism includes a first inner cover (4). The first inner cover (4) is provided with a flipping table (42). The flipping table (42) is provided with a fixedly connected flipping rod (422). A flipping motor (421) is connected to the left side of the flipping rod (422). The flipping motor (421) drives the flipping table (42) to flip. The bottom of the first inner cover (4) is provided with a base (451). A rotary motor (46) is provided below the base (451). The rotary motor (46) is located at the center of the base (451). A rotating rod (461) is vertically fixed to the motor shaft of the rotary motor (46). A suction paddle (43) is provided at the top of the rotating rod (461). A rotating filter screen (44) is provided in the middle section of the rotating rod (461). A triangular push rod (45) is provided at the lower end of the rotating rod (461). Multiple concrete discharge ports (47) are provided on the side of the first inner cover (4).

2. The dust-proof and environmentally friendly waste recycling device for construction as described in claim 1, characterized in that: The outer casing (1) is provided with a feeding mechanism on the left side. The feeding mechanism includes a feeding port (3). The inside of the feeding port (3) is provided with a feeding port filter screen (31). The bottom end of the feeding port (3) is provided with a feeding port drain pipe (33). A diversion block (321) is connected above the concrete discharge port (47). The bottom end of the feeding port (3) is provided with a feeding port diversion pipe (32) for communicating with the diversion block (321). The ports of the feeding port diversion pipe (32) and the feeding port drain pipe (33) are connected to the feeding port filter screen (31). A feeding micro-spray nozzle (35) is provided above the feeding port filter screen (31). A feeding port water supply pipe (34) is provided on the upper left side of the feeding port (3). The feeding micro-spray nozzle (35) is connected to the feeding port water supply pipe (34).

3. The dust-proof and environmentally friendly waste recycling device for construction as described in claim 1, characterized in that: The outer shell (1) is provided with a dust suction mechanism inside, which includes a dust suction pipe (41), a dust suction port (411), and a dust discharge port (412). The dust suction port (411) is provided above the flipping table (42), and the dust discharge port (412) is provided above the suction paddle (43). The outer side of the first inner cover (4) is provided with a dust suction pipe (41) for connecting the dust suction port (411) and the dust discharge port (412).

4. The dust-proof and environmentally friendly waste recycling device for construction as described in claim 1, characterized in that: The inner top of the outer casing (1) is provided with a rotating mechanism, which includes a rotating motor (2) and a rotating shaft (21). Above the rotating motor (2) is a rocker arm (22) radially connected to the rotating shaft (21). The inner top of the outer casing (1) is provided with a slider groove (24). The slider groove (24) and the rocker arm (22) are on the same central axis. The side wall of the slider groove (24) facing the rocker arm has an opening for the rocker arm (22) to slide through. The outer end of the rocker arm (22) is fixedly connected to a circular slider (23). The bottom end of the circular slider (23) is fixed on the top cover (25). The circular slider (23) slides inside the slider groove (24) by the rotation of the rocker arm (22).

5. The dust-proof and environmentally friendly waste recycling device for construction as described in claim 2, characterized in that: The outer shell (1) is provided with a metal discharge mechanism inside. The metal discharge mechanism includes a second inner cover (53). The middle section of the second inner cover (53) is provided with an inwardly opening annular dust removal nozzle (54). The lower end of the second inner cover (53) is provided with a fixedly connected inclined filter screen (55). The right side of the second inner cover (53) is provided with a metal discharge port (57). The lower part of the second inner cover (53) is provided with a water collection tray (56). The rear end of the water collection tray (56) is provided with a metal discharge drain pipe (52).

6. The dust-proof and environmentally friendly waste recycling device for construction as described in claim 5, characterized in that: The outer shell (1) is equipped with a water circulation mechanism, which includes a water tank (5). The front end of the water tank (5) is equipped with a fixedly connected water pump (51). The drain end of the water pump (51) is connected to the inlet water supply pipe (34) and the dust removal water supply pipe (541). The pumping end of the water pump (51) is connected to the bottom of the water tank (5). The inlet drain pipe (33) and the metal outlet drain pipe (52) are both connected to the top of the water tank (5) through the water pump.

7. The dust-proof and environmentally friendly waste recycling device for construction as described in claim 1, characterized in that: The protective cover (26) has an annular groove on its upper part, and an annular slider (251) is provided in the annular groove. The top of the annular slider (251) is fixed to the bottom surface of the top cover (25).

8. The dust-proof and environmentally friendly waste recycling device for construction as described in claim 5, characterized in that: The first inner cover (4) has a first U-shaped baffle (401) at its upper left end, and the second inner cover (53) has a second U-shaped baffle (531) above it.

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