Environment-friendly building waste separating and recycling device and method

Abstract

The invention discloses an environment-friendly building waste separating and recycling device and method, and relates to the technical field of building waste recycling treatment.The environment-friendly building waste separating and recycling device comprises a crushing base, a plurality of slag discharging grooves are formed in the upper surface of the crushing base, a side plate is fixedly connected to the side wall of the crushing base, and a spraying pipe is fixedly connected to the left side of the upper portion of the side plate; a plurality of water outlets are formed in the lower side of the spraying pipe, a crushing mechanism is further arranged on the upper side of the side plate, and an opening is formed in the side wall of the side plate. Cooperative transmission of a motor, a first transmission rod, a second transmission rod and a transmission belt is utilized, so that a rotating disc, a follow-up assembly inserting rod, a lifting arm and a connecting rod continuously drive a crushing plate to move; concrete is continuously crushed in the stone gliding process, so that the concrete gradually falls off, steel bars are separated from the concrete, the construction waste is effectively recycled, and the device has the advantages of being high in practicability and capable of efficiently recycling the steel bars in the construction waste.

Description

Technical Field

[0001] The present invention relates to the technical field of construction waste recycling and treatment, and in particular to an environmentally friendly construction waste separation and recycling device and method. Background Art

[0002] With the acceleration of urbanization, the rapid development of the construction industry has led to the generation of a large amount of construction waste. Especially in the process of building demolition, renovation and construction, the recycling and treatment of waste such as concrete, steel bars, bricks and stones has become an urgent problem to be solved. Traditional construction waste treatment methods mainly include simple crushing, screening, magnetic separation and manual sorting, but these methods have many shortcomings and are difficult to meet the needs of high efficiency, environmental protection and resource recycling.

[0003] First, the existing construction waste crushing equipment usually adopts a single impact or extrusion crushing method, which is difficult to completely crush the concrete blocks, resulting in the adhesion of concrete and steel bars, affecting the recovery rate of steel bars. At the same time, due to the uneven crushing of concrete, some residual concrete adheres to the surface of steel bars, reducing the reuse value of steel bars. In addition, some existing steel bar recovery devices rely on magnetic separation or mechanical separation, but because the surface of the steel bars is still wrapped with some concrete fragments, the magnetic separation effect is limited, and the purity of steel bar recovery is low;

[0004] The existing Chinese patent with publication number: CN108283984B discloses a steel-concrete separator, which can crush concrete by strong rolling and cutting. This method produces a lot of smoke and dust, and may not be able to avoid concrete adhering to the steel bar surface due to rolling, so that subsequent treatment is more troublesome;

[0005] Therefore, it is very necessary to design an environmentally friendly construction waste separation and reuse device and method that is highly practical and can efficiently recycle the steel bars inside the construction waste. Summary of the invention

[0006] The purpose of the present invention is to provide an environmentally friendly construction waste separation and recycling device and method to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: an environmentally friendly construction waste separation and reuse device and method, comprising a crushing seat, a plurality of slag discharge grooves are provided on the upper surface of the crushing seat, a side plate is fixedly connected to the side wall of the crushing seat, a spray pipe is fixedly connected to the upper left side of the side plate, a plurality of drainage ports are provided on the lower side of the spray pipe, a crushing mechanism is also provided on the upper side of the side plate, an opening is provided on the side wall of the side plate, a lifting mechanism is provided at the opening, and a base is fixedly connected to the side wall of the side plate;

[0008] The crushing mechanism includes a transmission assembly and a crushing plate on the transmission assembly, the crushing plate can move relative to the crushing seat, and a friction groove is provided on the lower side of the crushing plate, a serrated groove is provided on the upper surface of the friction groove, and a pressure plate is fixedly connected to the lower surface of the crushing plate.

[0009] According to the above technical solution, the position of the drainage port on the lower side of the spray pipe is staggered with the positions of several slag discharge grooves on the upper surface of the crushing seat. The position of the slag discharge groove corresponds to the position of the pressure plate on the lower side of the crushing plate. The upper surface of the crushing seat is also provided with several protrusions.

[0010] According to the above technical solution, the transmission assembly includes a motor, the outer wall of the motor is fixedly connected to the upper side of the base, the output end of the motor is fixedly connected to the first transmission rod, the outer wall of the first transmission rod is rotatably connected to the inner wall of the side plate through a bearing, a second transmission rod is also arranged on the side plate, the outer wall of the second transmission rod is rotatably connected to the inner wall of the side plate through a bearing, the outer wall of the second transmission rod is connected to the outer wall of the first transmission rod through a transmission belt transmission connection, the second transmission rod and the first transmission rod are both fixedly connected to a turntable at one end located on the upper side of the crushing seat, a plunger is fixedly connected to one side of the turntable, the outer wall of the plunger is sleeved with a lifting arm, the outer wall of the plunger is rotatably connected to the inner wall of the lifting arm through a bearing, one end of the lifting arm is rotatably provided with a connecting rod through a bearing, and the outer wall of the connecting rod is fixedly connected to the upper surface of the crushing plate.

[0011] According to the above technical solution, the slope of the lower surface of the crushing plate is consistent with the slope of the upper surface of the crushing seat, and the rotation direction of the turntable is counterclockwise. The upper surface of the crushing seat and the lower surface of the crushing plate are both higher on the left and lower on the right, and the front and rear sides of the crushing plate are in contact with the outer wall of the side plate.

[0012] The lifting mechanism comprises a magnetic lifter, wherein the magnetic lifter is located on the upper side of the crushing plate, the upper surface of the crushing plate is provided with a mounting groove, the lower surface of the magnetic lifter is fixedly connected to the lower side of the inner wall of the mounting groove, the upper surface of the crushing plate is also fixedly connected to a column, the upper end outer wall of the column is fixedly connected to a first magnet, one side of the first magnet extends to the front side of the side plate through an opening provided on the side plate, the front end of the first magnet is fixedly connected to a first conductive block, the front side of the outer wall of the side plate is fixedly connected to a sliding seat, the upper side of the sliding seat is provided with a sliding groove, the inner wall of the sliding groove on the upper side of the sliding seat is slidably connected to a sliding block, the upper side of the sliding seat is provided with a spring hole, a spring is arranged inside the spring hole, the lower end of the spring is fixedly connected to the bottom of the inner wall of the sliding groove, the upper end of the spring is fixedly connected to a second magnet, the outer wall of the second magnet is slidably connected to the inner wall of the spring hole, and the upper surface of the second magnet is fixedly connected to a second conductive block.

[0013] According to the above technical solution, the lower end of the first conductive block extends to the lower side of the first magnet, the surfaces of the first magnet and the second magnet that are close to each other are opposite magnetic poles, the movement path of the first conductive block passes through the upper side of the second conductive block, and the first conductive block can contact the upper side of the second conductive block when it moves to the lowest point, and the stretching limit of the spring can support the second conductive block to move upward a distance equal to two-thirds of the upward movement distance of the first conductive block.

[0014] According to the above technical solution, the second conductive block is electrically connected to an electrode of the power supply, an electrode of the magnetic lifter is electrically connected to another electrode of the power supply, and another electrode of the magnetic lifter is electrically connected to the first conductive block.

[0015] The invention discloses an environmentally friendly construction waste separation and reuse method, comprising the following steps: construction waste is input from the left side of a crushing seat, water flows through a spray pipe and a drainage port at the lower side of the spray pipe to flush the surface of the crushing seat and the construction waste, so that the adhered powder is discharged through a slag discharge groove, and at the same time, a crushing plate is driven by a motor to impact and crush the construction waste on the crushing seat, so that the concrete is crushed and the internal steel bars fall off, a pressing plate on the crushing plate squeezes the exposed steel bars to make them concave into the slag discharge groove, destroying the internal stress of the concrete, and at the same time improving the water penetration capacity to enhance the crushing effect, a sawtooth structure of the friction groove cooperates with a convex structure on the crushing seat to rub the steel bars and the concrete surface, so that the concrete falls off completely, a lifting mechanism absorbs the steel bars adhered to the surface of the crushed concrete through a magnetic lifter, when the first conductive block moves to a low point, it contacts the second conductive block so that the magnetic lifter is energized to absorb the steel bars, after the first conductive block continues to rise and separates from the second conductive block, the magnetic lifter is powered off to release the steel bars, and efficient separation and recovery of the steel bars is achieved.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention connects the water source through the spray pipe, sets the drainage port and the staggered layout of multiple slag discharge grooves on the upper surface of the crushing seat, so as to fully flush the stone, steel bar and concrete debris adhering to the device, and flush the debris into the slag discharge groove in time and discharge it, thereby avoiding excessive powder residue on the surface of the crushing seat, ensuring that the crushing plate is evenly stressed when impacting the concrete, and improving the crushing effect;

[0017] By utilizing the coordinated transmission of the motor, the first transmission rod, the second transmission rod and the transmission belt, the turntable and the subsequent components such as the insertion rod, the lifting arm and the connecting rod continuously drive the crushing plate to move, and the concrete is continuously crushed during the sliding of the stone, so that the concrete gradually falls off and the steel bars are separated from the concrete, thereby realizing the effective reuse of construction waste;

[0018] The raised pressure plate arranged on the lower surface of the crushing plate in the device corresponds to the slag discharge groove on the upper surface of the crushing seat, so that the steel bars exposed outside the concrete are squeezed and deformed, destroying the internal stress of the concrete. At the same time, the serrated grooves in the friction groove and the raised structure on the crushing seat produce friction between the steel bars and the concrete surface, making the concrete easier to fall off, thereby further improving the separation efficiency of the steel bars and concrete.

[0019] By setting a magnetic lifter on the upper surface of the crushing plate and utilizing the contact power-on characteristics of the first conductive block and the second conductive block, the crushed steel bars with concrete residues are adsorbed by the magnetic lifter, and the second magnet is driven to move by the magnetic suction device during the upward movement of the steel bars, so that the steel bars are released at a high point and continuously turned over to avoid being wrapped by gravel, thereby further improving the effect of removing concrete on the surface of the steel bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 It is a schematic diagram of the split structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the lower side of the crushing plate of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the crushing mechanism of the present invention;

[0025] Figure 5 It is a schematic diagram of the lifting mechanism structure of the present invention;

[0026] Figure 6 The present invention Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0027] In the figure: 1. crushing seat; 2. slag discharge trough; 3. side plate; 4. spray pipe; 5. crushing mechanism; 6. lifting mechanism; 7. base; 501. motor; 502. first transmission rod; 503. second transmission rod; 504. transmission belt; 505. turntable; 506. insertion rod; 507. lifting arm; 508. connecting rod; 509. crushing plate; 510. friction groove; 511. pressure plate; 601. magnetic lifter; 602. column; 603. first magnet; 604. first conductive block; 605. slide seat; 606. slide block; 607. spring; 608. second magnet; 609. second conductive block. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-6 The present invention provides a technical solution: an environmentally friendly construction waste separation and reuse device and method, comprising a crushing seat 1, a plurality of slag discharge grooves 2 are provided on the upper surface of the crushing seat 1, a side plate 3 is fixedly connected to the side wall of the crushing seat 1, a spray pipe 4 is fixedly connected to the upper left side of the side plate 3, a plurality of drainage ports are provided on the lower side of the spray pipe 4, a crushing mechanism 5 is also provided on the upper side of the side plate 3, an opening is provided on the side wall of the side plate 3, a lifting mechanism 6 is provided at the opening, and a base 7 is fixedly connected to the side wall of the side plate 3;

[0030] The crushing mechanism 5 includes a transmission assembly and a crushing plate 509 on the transmission assembly, the crushing plate 509 can move relative to the crushing seat 1, and a friction groove 510 is provided on the lower side of the crushing plate 509, and a serrated groove is provided on the upper surface of the friction groove 510. A pressing plate 511 is also fixedly connected to the lower surface of the crushing plate 509, the position of the drainage port on the lower side of the spray pipe 4 is staggered with the positions of the plurality of slag discharge grooves 2 on the upper surface of the crushing seat 1, the position of the slag discharge groove 2 is arranged corresponding to the position of the pressing plate 511 on the lower side of the crushing plate 509, and a plurality of protrusions are also arranged on the upper surface of the crushing seat 1. The transmission assembly includes a motor 501, the outer wall of the motor 501 is fixedly connected to the upper side of the base 7, the output end of the motor 501 is fixedly connected to a first transmission rod 502, the outer wall of the first transmission rod 502 is rotatably connected to the inner wall of the side plate 3 through a bearing, and a second transmission rod 503 is also arranged on the side plate 3, and the outer wall of the second transmission rod 503 is connected to the side plate 3. The inner wall of the plate 3 is rotatably connected through a bearing, the outer wall of the second transmission rod 503 is connected to the outer wall of the first transmission rod 502 through a transmission belt 504, the second transmission rod 503 and the first transmission rod 502 are both fixedly connected to a turntable 505 at one end of the upper side of the crushing seat 1, a plunger 506 is fixedly connected to one side of the turntable 505, a lifting arm 507 is sleeved on the outer wall of the plunger 506, the outer wall of the plunger 506 is rotatably connected to the inner wall of the lifting arm 507 through a bearing, and a connecting rod 508 is rotatably connected to one end of the lifting arm 507 through a bearing, the outer wall of the connecting rod 508 is fixedly connected to the upper surface of the crushing plate 509, the inclination of the lower surface of the crushing plate 509 is consistent with the inclination of the upper surface of the crushing seat 1, and the rotation direction of the turntable 505 is counterclockwise, the upper surface of the crushing seat 1 and the lower surface of the crushing plate 509 are both higher on the left and lower on the right, and the front and rear sides of the crushing plate 509 are in contact with the outer wall of the side plate 3;

[0031] During use, construction waste including steel bars will be input from the left side of the crushing seat 1, and the front end of the spray pipe 4 is connected to the water supply device through a water pipe, so that water flows through the spray pipe 4 and the drainage port provided at the lower side of the spray pipe 4 to wash the upper surface of the crushing seat 1 and the stones. Since the position of the water outlet at the lower side of the spray pipe 4 is staggered with the slag discharge trough 2, the water flow can better wash the upper surface of the crushing seat 1, and wash the broken pieces and powders adhered to the surface into the slag discharge trough 2 and then be discharged from the right side of the crushing seat 1, so as to avoid too much stone powder remaining on the crushing seat 1, thereby preventing the impact of the crushing plate 509 on the concrete from being buffered, and making the impact force more uniform;

[0032] During the process of the stone sliding down, the motor 501 drives the first transmission rod 502 to rotate. Due to the transmission of the transmission belt 504, the first transmission rod 502 synchronously drives the second transmission rod 503 to rotate, so that the turntable 505 drives the lifting arm 507 to perform continuous deflection movement through the insertion rod 506. During the rotation of the lifting arm 507, the connecting rod 508 and the crushing plate 509 are driven to continuously move, so that the crushing plate 509 crushes the concrete fragments on the lower side thereof, so that the steel bars inside thereof fall off, thereby completing the separation of the steel bars from the concrete.

[0033] Since the upper surface of the crushing seat 1 is provided with a slag discharge groove 2, and the crushing plate 509 is provided with a corresponding raised pressing plate 511, the pressing plate 511 will squeeze the steel bars that have been exposed outside the concrete, so that they are recessed into the slag discharge groove 2 for deformation, thereby allowing the steel bars to destroy the internal stress of the concrete through the garbage, and causing the concrete where the steel bars extend out of the edge of the concrete to be broken, so that water can more easily penetrate into the concrete, making it easier for it to be broken and separated from the steel bars, thereby increasing the shedding rate of the concrete on the surface of the steel bars;

[0034] During the movement of the crushing plate 509, the sawtooth structure inside the friction groove 510 on the lower side of the crushing plate 509 and the protruding structure on the upper side of the crushing seat 1 will rub the steel bars and the concrete surface, thereby causing the concrete on the surface to fall off more thoroughly;

[0035] The lifting mechanism 6 includes a magnetic lifter 601, which is located on the upper side of the crushing plate 509. A mounting groove is provided on the upper surface of the crushing plate 509. The lower surface of the magnetic lifter 601 is fixedly connected to the lower side of the inner wall of the mounting groove. The upper surface of the crushing plate 509 is also fixedly connected to a column 602. The upper outer wall of the column 602 is fixedly connected to a first magnet 603. One side of the first magnet 603 extends to the front side of the side plate 3 through an opening provided on the side plate 3. The front end of the first magnet 603 is fixedly connected to a first conductive block 604. A slide seat 605 is fixedly connected to the front side of the outer wall of the side plate 3. A slide slot is provided on the upper side of the slide seat 605. A slider 606 is slidably connected to the inner wall of the slide slot on the upper side of the slide seat 605. A spring hole is provided on the upper side of the slider 606. A spring 607 is provided inside the spring hole. The lower end of the spring 607 is fixedly connected to the bottom of the inner wall of the slide slot. A second magnet 608 is fixedly connected to the upper end, and the outer wall of the second magnet 608 is slidably connected to the inner wall of the spring hole. A second conductive block 609 is fixedly connected to the upper surface of the second magnet 608. The lower end of the first conductive block 604 extends to the lower side of the first magnet 603. The surfaces of the first magnet 603 and the second magnet 608 that are close to each other are opposite magnetic poles. The movement path of the first conductive block 604 passes through the upper side of the second conductive block 609, and the first conductive block 604 can contact the upper side of the second conductive block 609 when it moves to the lowest point. The stretching limit of the spring 607 can support the second conductive block 609 to move upward by a distance equal to two-thirds of the upward movement distance of the first conductive block 604. The second conductive block 609 is electrically connected to an electrode of the power supply, an electrode of the magnetic lifter 601 is electrically connected to another electrode of the power supply, and another electrode of the magnetic lifter 601 is electrically connected to the first conductive block 604.

[0036] During the movement of the crushing plate 509, it will drive the column 602, the first magnet 603, and the first conductive block 604 to perform circular motion. After the first conductive block 604 moves to the lowest point, it will contact the upper surface of the second conductive block 609, and at this time, the first magnet 603 is close to the second magnet 608 so that the two are attracted to each other. Since the first conductive block 604 is in contact with the second conductive block 609, the magnetic jack 601 is powered on and works, so that it will attract the steel bars of concrete fragments attached to the surface of the left side of the lower surface of the crushing plate 509 after preliminary crushing, and move upward together. While it moves upward, the first magnet 603 will attract the second conductive block 608. The magnet 608 moves upward, and the spring 607 is stretched and deformed. As the crushing plate 509 continues to move upward, the spring 607 is stretched to the limit, and then the second conductive block 609 is forced to stop moving. The first conductive block 604 continues to rise, which will separate the first conductive block 604 from the second conductive block 609. The magnetic lifter 601 is powered off and shut down. At this time, the spring 607 rebounds and drives the second magnet 608 to reset. Since the magnetic lifter 601 is powered off, the steel bars on the lower side of the crushing plate 509 will fall off, and the steel bars will continue to flip during the movement, preventing the steel bars from being wrapped by gravel and reducing the impact effect, thereby more efficiently removing the concrete.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An environmentally friendly construction waste separation and recycling device, comprising a crushing seat (1), characterized in that: The upper surface of the crushing seat (1) is provided with a plurality of slag discharge grooves (2); the side wall of the crushing seat (1) is fixedly connected to a side plate (3); the upper left side of the side plate (3) is fixedly connected to a spray pipe (4); the lower side of the spray pipe (4) is provided with a plurality of drainage ports; the upper side of the side plate (3) is also provided with a crushing mechanism (5); the side wall of the side plate (3) is provided with an opening; a lifting mechanism (6) is provided at the opening; and the side wall of the side plate (3) is fixedly connected to a base (7); The crushing mechanism (5) comprises a transmission assembly and a crushing plate (509) on the transmission assembly. The crushing plate (509) can move relative to the crushing seat (1). A friction groove (510) is provided on the lower side of the crushing plate (509). A serrated groove is provided on the upper surface of the friction groove (510). A pressing plate (511) is also fixedly connected to the lower surface of the crushing plate (509).

2. The environmentally friendly construction waste separation and recycling device according to claim 1 is characterized by: The position of the drainage outlet on the lower side of the spray pipe (4) is staggered with the positions of a plurality of slag discharge grooves (2) on the upper surface of the crushing seat (1); the position of the slag discharge grooves (2) is corresponding to the position of the pressure plate (511) on the lower side of the crushing plate (509); and a plurality of protrusions are also provided on the upper surface of the crushing seat (1).

3. The environmentally friendly construction waste separation and recycling device according to claim 2 is characterized by: The transmission assembly comprises a motor (501), the outer wall of the motor (501) is fixedly connected to the upper side of the base (7), the output end of the motor (501) is fixedly connected to a first transmission rod (502), the outer wall of the first transmission rod (502) is rotatably connected to the inner wall of the side plate (3) via a bearing, a second transmission rod (503) is further provided on the side plate (3), the outer wall of the second transmission rod (503) is rotatably connected to the inner wall of the side plate (3) via a bearing, the outer wall of the second transmission rod (503) is connected to the outer wall of the first transmission rod (502) via a transmission belt (50 4) Transmission connection, the second transmission rod (503) and the first transmission rod (502) are both fixedly connected to a rotating disk (505) at one end on the upper side of the crushing seat (1), and a plug rod (506) is fixedly connected to one side of the rotating disk (505), and the outer wall of the plug rod (506) is sleeved with a lifting arm (507), and the outer wall of the plug rod (506) is rotatably connected to the inner wall of the lifting arm (507) through a bearing, and one end of the lifting arm (507) is rotatably provided with a connecting rod (508) through a bearing, and the outer wall of the connecting rod (508) is fixedly connected to the upper surface of the crushing plate (509).

4. The environmentally friendly construction waste separation and recycling device according to claim 3 is characterized by: The inclination of the lower surface of the crushing plate (509) is consistent with the inclination of the upper surface of the crushing seat (1), and the rotation direction of the turntable (505) is counterclockwise. The upper surface of the crushing seat (1) and the lower surface of the crushing plate (509) are both higher on the left side and lower on the right side. The front side and the rear side of the crushing plate (509) are in contact with the outer wall of the side plate (3).

5. The environmentally friendly construction waste separation and recycling device according to claim 4 is characterized by: The lifting mechanism (6) comprises a magnetic lifter (601), the magnetic lifter (601) is located on the upper side of the crushing plate (509), the upper surface of the crushing plate (509) is provided with a mounting groove, the lower surface of the magnetic lifter (601) is fixedly connected to the lower side of the inner wall of the mounting groove, the upper surface of the crushing plate (509) is also fixedly connected to a column (602), the upper end outer wall of the column (602) is fixedly connected to a first magnet (603), one side of the first magnet (603) extends to the front side of the side plate (3) through an opening provided on the side plate (3), and the front end of the first magnet (603) is fixedly connected to a first conductive block (603). 04), a sliding seat (605) is fixedly connected to the front side of the outer wall of the side plate (3), a sliding groove is opened on the upper side of the sliding seat (605), a slider (606) is slidably connected to the inner wall of the sliding groove on the upper side of the sliding seat (605), a spring hole is opened on the upper side of the slider (606), a spring (607) is arranged inside the spring hole, the lower end of the spring (607) is fixedly connected to the bottom of the inner wall of the sliding groove, the upper end of the spring (607) is fixedly connected to the second magnet (608), the outer wall of the second magnet (608) is slidably connected to the inner wall of the spring hole, and the upper surface of the second magnet (608) is fixedly connected to the second conductive block (609).

6. The environmentally friendly construction waste separation and recycling device according to claim 5 is characterized by: The lower end of the first conductive block (604) extends to the lower side of the first magnet (603), the surfaces of the first magnet (603) and the second magnet (608) that are close to each other have opposite magnetic poles, the movement path of the first conductive block (604) passes through the upper side of the second conductive block (609), and the first conductive block (604) can contact the upper side of the second conductive block (609) when moving to the lowest point, and the stretching limit of the spring (607) can support the second conductive block (609) to move upward by a distance equal to two-thirds of the upward movement distance of the first conductive block (604).

7. The environmentally friendly construction waste separation and recycling device according to claim 6 is characterized by: The second conductive block (609) is electrically connected to one electrode of the power supply, one electrode of the magnetic lifter (601) is electrically connected to another electrode of the power supply, and the other electrode of the magnetic lifter (601) is electrically connected to the first conductive block (604).

8. An environmentally friendly method for separating and recycling construction waste, characterized in that: The following steps are involved: Construction waste is input from the left side of the crushing seat (1), and water flows through the spray pipe (4) and the drainage port at the bottom of the spray pipe (4) to wash the surface of the crushing seat (1) and the construction waste, so that the adhered powder is discharged through the slag discharge trough (2). At the same time, the crushing plate (509) is driven by the motor (501) to impact and crush the construction waste on the crushing seat (1), so that the concrete is crushed and the internal steel bars fall off. The pressing plate (511) on the crushing plate (509) squeezes the exposed steel bars to make them concave into the slag discharge trough (2), thereby destroying the internal stress of the concrete and improving the water penetration capacity to enhance the crushing effect. As a result, the sawtooth structure of the friction groove (510) cooperates with the protruding structure on the crushing seat (1) to rub the steel bars and the concrete surface, so that the concrete is completely removed. The lifting mechanism (6) absorbs the steel bars adhering to the surface of the crushed concrete through the magnetic lifter (601). When the first conductive block (604) moves to a low point, it contacts the second conductive block (609) so that the magnetic lifter (601) is powered on to absorb the steel bars. After the first conductive block (604) continues to rise and separates from the second conductive block (609), the magnetic lifter (601) is powered off to release the steel bars, thereby realizing efficient separation and recovery of the steel bars.

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