Construction waste renewable resource utilization flotation separation device and separation method thereof

Abstract

The invention relates to the technical field of building material production equipment, and discloses a building waste renewable resource utilization flotation separation device and a separation method thereof.The building waste renewable resource utilization flotation separation device comprises a box body, a crusher is installed on the upper surface of the box body, a conveying belt is fixedly arranged in the box body, and the conveying belt is located under the crusher; the device comprises a box body, a separation barrel is fixedly arranged in the box body, a plurality of net hanging assemblies are installed in the box body, each net hanging assembly comprises a double-head motor, a rotating column is fixedly arranged at the driving end of each double-head motor, and an oscillation assembly is installed at the end, away from the corresponding double-head motor, of each rotating column. The net-shaped garbage is separated independently through the net hanging assembly, and then the effect that when flotation separation operation is conducted on the construction garbage subsequently, due to the fact that the net-shaped garbage winds the other construction garbage, the separation operation cannot be conducted normally, and manual intervention is needed is achieved.

Description

Technical Field

[0001] This invention relates to the field of building material production equipment technology, specifically to a flotation separation device and separation method for the recycling of construction waste resources. Background Technology

[0002] Construction waste refers to various solid wastes generated during the construction, renovation, expansion, demolition, and repair of buildings and structures. It mainly includes slag, bricks and tiles, concrete mortar waste, wood and plastic components, and waste metal materials. It is characterized by large output, complex composition, but strong recyclability. If disposed of arbitrarily, it will occupy land and cause environmental and safety hazards. After sorting and processing, it can be recycled and reused.

[0003] In the current process of separating and recycling construction waste, flotation separation is one of the core steps. It achieves classification and recycling by utilizing the differences in buoyancy of different components of waste in water. However, the mesh-like waste, such as waste wire mesh and plastic mesh, which is often mixed in with construction waste, can easily entangle other construction waste, hindering the stratified separation of different components of waste during the flotation process and affecting the normal operation of the separation operation. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a flotation separation device and method for recycling construction waste, which solves the problem that mesh-like waste such as waste wire mesh and plastic mesh, which are often mixed in construction waste, easily entangle other construction waste, hindering the stratified separation of different components of waste during the flotation process and affecting the normal operation of the separation operation.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a flotation separation device for recycling construction waste, comprising a housing, a crusher mounted on the upper surface of the housing, a conveyor belt fixedly installed inside the housing and located directly below the crusher, a separation bucket fixedly installed inside the housing, and multiple screen hanging assemblies installed inside the housing, each screen hanging assembly including a dual-head motor, a rotating column fixedly installed at the drive end of the dual-head motor, and a vibration component installed at the end of the rotating column away from the dual-head motor.

[0006] The above technical solution separates the mesh-like waste separately using a mesh-hanging component, thereby avoiding the inability of the subsequent flotation separation operation of construction waste to operate normally due to the mesh-like waste becoming entangled with other construction waste.

[0007] Preferably, the hanging net assembly further includes a housing, the outer wall of which is fixedly connected to the inside of the box, the dual-head motor is installed inside the housing, a lead screw is fixedly provided at the drive end of the housing away from the rotating column, the end of the lead screw away from the dual-head motor is rotatably connected to the inside of the housing, a threaded block is threadedly connected to the outer wall of the lead screw, a plurality of hanging plates are rotatably connected to the outer wall of the threaded block, and the outer walls of the hanging plates are rotatably connected to the inside of the housing.

[0008] Preferably, the oscillation assembly includes a protrusion, the interior of which is fixedly connected to the end of the rotating column away from the dual-head motor. A fixing block is slidably connected to the outer wall of the protrusion, and the outer wall of the fixing block is fixedly connected to the interior of the housing. A fixing rod is slidably connected to the interior of the housing, and the end of the fixing rod away from the housing is fixedly connected to the interior of the housing. An elastic element is installed on the outer wall of the fixing rod, one end of which is attached to the outer wall of the housing, and the other end of which is fixedly disposed on the inner wall of the housing.

[0009] Preferably, a sliding column is fixedly connected to one end of the hanging plate near the threaded block, a fixed column is slidably connected to the outer wall of the sliding column, an air bladder is attached to the bottom end of the sliding column, an air guide tube is fixedly installed inside the air bladder, a piston cylinder is fixedly installed at the end of the air guide tube away from the fixed column, a piston rod is slidably connected inside the piston cylinder, and a sealing plate is fixedly connected to the top end of the piston rod.

[0010] Preferably, a magnetic coupler is installed on the inner bottom wall of the box, a rotating disk is rotatably connected inside the separation barrel, and multiple triangular blocks are installed on the upper surface of the rotating disk. The magnetic coupler and the rotating disk are magnetically connected, and a fixing rod is fixedly connected inside the rotating disk.

[0011] Preferably, an electric push rod is fixedly installed inside the box, and an electrostatic adsorption roller is rotatably connected to the drive end of the electric push rod. A buckle assembly is installed on the lower surface of the electrostatic adsorption roller. The buckle assembly includes a second sliding column, the outer wall of which is slidably connected to the inside of a second fixed rod. The electrostatic adsorption roller is rotatably connected to the inside of the separation bucket through the buckle assembly and the second fixed rod.

[0012] Preferably, the buckle assembly further includes a fixing block two, the upper surface of the fixing block two is fixedly connected to the lower surface of the electrostatic adsorption roller, a plurality of fixing posts two are installed on the outer wall of the fixing block two, the outer wall of the sliding post two is slidably connected to the interior of the fixing block two and the fixing posts two, an elastic element two is fixedly provided at the end of the sliding post two away from the fixing block two, the end of the elastic element two away from the sliding post two is fixedly provided inside the fixing post two, and the end of the fixing rod two away from the rotating disk is slidably connected to the interior of the fixing block two.

[0013] Preferably, the end of the second fixed rod away from the rotating disk has a groove, and the size of the groove is adapted to the second sliding column.

[0014] Preferably, the first fixed column is rotatably connected to the inside of the outer shell, the airbag is installed inside the first fixed column, the end of the air guide tube near the airbag is fixedly installed inside the first fixed column, the outer wall of the piston cylinder is installed inside the outer shell, the end of the air guide tube near the piston cylinder is fixedly installed inside the outer shell, the outer wall of the sealing plate is slidably connected to the inside of the outer shell, and the upper surface of the sealing plate is attached to the outer wall of the hanging plate.

[0015] Preferably, a separation method for a flotation separation device for the recycling of construction waste is provided, the separation method comprising the following steps:

[0016] S1. Construction waste is fed into the crusher for crushing. The crushed construction waste falls onto the conveyor belt below. Then, the dual-head motor is turned on, which drives the lead screw to rotate, further causing the threaded block to move down and drive the hanging plate to rotate and open inside the shell, hooking the mesh waste above the conveyor belt. Then, the dual-head motor drives the rotating column and protrusion to rotate, further causing the protrusion to intermittently squeeze the fixed block one, causing the shell to slide back and forth along the fixed rod one and compress the elastic element one. The reset elastic force of the elastic element one causes the shell to vibrate, shaking off other construction waste attached to the surface of the mesh waste hooked on the hanging plate. When the hanging plate rotates, it will drive the sliding column one to move down along the fixed column, squeezing the air bladder. The gas in the air bladder is transported to the piston cylinder through the air guide pipe, pushing the piston rod and sealing plate to move up. The sealing plate fits against the outer wall of the hanging plate, sealing the internal channel of the shell.

[0017] S2. The construction waste processed by S1 is conveyed by a conveyor belt to the separation bin inside the box. Water is injected into the separation bin. By utilizing the buoyancy difference of different components of construction waste, the initial stratification is achieved. By opening the magnetic coupler on the bottom wall of the box, the rotating disk inside the separation bin is driven to rotate through the magnetic connection. This further drives the triangular blocks on the rotating disk to stir the construction waste at the bottom, avoiding large pieces of waste from pressing down on light waste and causing incomplete stratification.

[0018] S3. Start the electric push rod to drive the electrostatic adsorption roller to move down. The electrostatic adsorption roller connects with the fixed rod two through the buckle assembly. The sliding column two slides into the groove of the fixed rod two under the action of the elastic element two, so that the electrostatic adsorption roller and the fixed rod two rotate synchronously. During the rotation of the electrostatic adsorption roller, it adsorbs and separates the metal waste suspended in the upper layer of the separation bucket.

[0019] Working principle: By turning on the dual-head motor, the lead screw rotates, which in turn moves the threaded block connected to the outer wall downward. As the threaded block moves downward, it causes the hanging plate to rotate inside the outer shell, thus hooking the mesh debris when the crushed construction waste falls. When it is necessary to remove the mesh debris, the dual-head motor is controlled to rotate the lead screw in the opposite direction, which further moves the threaded block upward and causes the hanging plate to rotate in the opposite direction. After the hanging plate rotates to a certain angle, the mesh debris will automatically slide off, thus facilitating subsequent centralized recycling.

[0020] This invention provides a flotation separation device and method for recycling construction waste. It has the following beneficial effects:

[0021] 1. This invention separates mesh-like waste separately using a mesh-hanging component, thereby avoiding the need for manual intervention during subsequent flotation separation of construction waste due to the mesh-like waste becoming entangled with other construction waste.

[0022] 2. This invention uses a vibration component to shake off the remaining waste on the mesh waste, thereby achieving the effect of automatically separating the mesh waste while also automatically separating the remaining construction waste entangled on its surface.

[0023] 3. This invention achieves automatic sealing of the opening below the hanging plate during meshing operations by sliding the sealing plate, thus preventing construction waste and other impurities from entering the shell and affecting the normal operation of the internal workpieces.

[0024] 4. This invention uses the rotation of an electrostatic adsorption roller to achieve the rotational adsorption of metal waste suspended above after flotation separation, thereby improving the thoroughness of metal waste adsorption and also increasing the adsorption rate. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a partial structural diagram of the crusher of the present invention;

[0027] Figure 3 This is a partial structural diagram of the fixing rod II of the present invention;

[0028] Figure 4 This is a schematic diagram of a partial structure of the lead screw of the present invention;

[0029] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0030] Figure 6This is a schematic diagram of a partial structure of the protrusion in this invention;

[0031] Figure 7 This is a partial structural diagram of the hanging plate of the present invention;

[0032] Figure 8 This is a partial structural diagram of the airbag of the present invention;

[0033] Figure 9 This is a partial structural diagram of the electrostatic adsorption roller of the present invention;

[0034] Figure 10 This is a partial structural diagram of the sliding column II of the present invention.

[0035] The components are as follows: 1. Box body; 2. Crusher; 3. Conveyor belt; 4. Separation barrel; 5. Netting assembly; 51. Outer shell; 52. Dual-head motor; 53. Lead screw; 54. Threaded block; 55. Hanging plate; 6. Rotating column; 7. Vibration assembly; 71. Protrusion; 72. Fixed block one; 73. Fixed rod one; 74. Elastic element one; 8. Sliding column one; 9. Fixed column one; 10. Airbag; 11. Air guide pipe; 12. Piston cylinder; 13. Piston rod; 14. Sealing plate; 15. Electric push rod; 16. Electrostatic adsorption roller; 17. Magnetic coupler; 18. Rotating disk; 19. Fixed rod two; 20. Buckle assembly; 201. Fixed block two; 202. Fixed column two; 203. Sliding column two; 204. Elastic element two. Detailed Implementation

[0036] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see the appendix Figure 1 -Appendix Figure 6 This invention provides a flotation separation device for recycling construction waste, comprising a housing 1, a crusher 2 mounted on the upper surface of the housing 1, a conveyor belt 3 fixedly mounted inside the housing 1 and located directly below the crusher 2, a separation bucket 4 fixedly mounted inside the housing 1, and multiple screen hanging components 5 mounted inside the housing 1. Each screen hanging component 5 includes a dual-head motor 52, a rotating column 6 fixedly mounted on the drive end of the dual-head motor 52, and a vibration component 7 mounted on the end of the rotating column 6 away from the dual-head motor 52.

[0038] Specifically, construction waste is first poured into crusher 2 for crushing. The crushed construction waste falls onto conveyor belt 3 below, which transports it to separation bin 4. Separation bin 4 contains water, which automatically sorts the construction waste based on the different buoyancy of different types of waste in the water. Before the crushed construction waste falls above conveyor belt 3, the mesh component 5 automatically separates the mesh waste from the construction waste. While the mesh waste is hooked, the vibration component 7 shakes off the remaining waste on the mesh waste. This achieves automatic separation of the mesh waste and also prevents the mesh waste from entangled with other construction waste, thus avoiding the impact on the normal operation of subsequent flotation separation.

[0039] Please see the appendix Figure 4 The hanging net assembly 5 also includes a housing 51. The outer wall of the housing 51 is fixedly connected to the inside of the box 1. The dual-head motor 52 is installed inside the housing 51. A lead screw 53 is fixedly provided at the drive end of the housing 51 away from the rotating column 6. The end of the lead screw 53 away from the dual-head motor 52 is rotatably connected to the inside of the housing 51. A threaded block 54 is threadedly connected to the outer wall of the lead screw 53. Multiple hanging plates 55 are rotatably connected to the outer wall of the threaded block 54. The outer walls of the hanging plates 55 are rotatably connected to the inside of the housing 51.

[0040] Specifically, by activating the dual-head motor 52, the lead screw 53 is rotated, which in turn moves the threaded block 54 connected to its outer wall downward. As the threaded block 54 moves downward, it causes the hanging plate 55 to rotate inside the outer casing 51, thereby hooking the mesh waste. When it is necessary to remove the mesh waste, the dual-head motor 52 is controlled to rotate the lead screw 53 in the opposite direction, which in turn moves the threaded block 54 upward. As the threaded block 54 moves upward, it causes the hanging plate 55 to rotate in the opposite direction. When the hanging plate 55 rotates in the opposite direction to a certain angle, the mesh waste will automatically slide off the surface of the hanging plate 55, thus facilitating the centralized collection of the mesh waste in the later stage.

[0041] Please see the appendix Figure 2 Appendix Figure 3 and attached Figure 6 The oscillation assembly 7 includes a protrusion 71, the inside of which is fixedly connected to the end of the rotating column 6 away from the dual-head motor 52. A fixing block 72 is slidably connected to the outer wall of the protrusion 71. The outer wall of the fixing block 72 is fixedly connected to the inside of the housing 1. A fixing rod 73 is slidably connected to the inside of the outer shell 51. The end of the fixing rod 73 away from the outer shell 51 is fixedly connected to the inside of the housing 1. An elastic element 74 is installed on the outer wall of the fixing rod 73. One end of the elastic element 74 is attached to the outer wall of the outer shell 51, and the other end of the elastic element 74 is fixedly set on the inner wall of the outer shell 51.

[0042] Specifically, the dual-head motor 52 drives the protrusion 71 to rotate. When the protrusion 71 rotates, its protrusion will intermittently slide into the fixed block 72, further driving the outer shell 51 to slide on the outer wall of the fixed rod 73. At the same time, it cooperates with the box 1 to compress the elastic element 74. When the protrusion of the protrusion 71 slides out from the fixed block 72, the elastic element 74 will release its own elasticity to reset the outer shell 51. Through the reciprocating movement of the outer shell 51, the mesh garbage hooked by the hanging plate 55 is shaken, and the remaining construction garbage hooked on its surface is thrown off.

[0043] Please see the appendix Figure 4 Appendix Figure 5 Appendix Figure 7 and attached Figure 8 A sliding column 8 is fixedly connected to one end of the hanging plate 55 near the threaded block 54. A fixed column 9 is slidably connected to the outer wall of the sliding column 8. An airbag 10 is attached to the bottom end of the sliding column 8. An air guide tube 11 is fixedly installed inside the airbag 10. A piston cylinder 12 is fixedly installed at the end of the air guide tube 11 away from the fixed column 9. A piston rod 13 is slidably connected inside the piston cylinder 12. A sealing plate 14 is fixedly connected to the top end of the piston rod 13. The fixed column 9 is rotatably connected to the inside of the outer shell 51. The airbag 10 is installed inside the fixed column 9. The end of the air guide tube 11 near the airbag 10 is fixedly installed inside the fixed column 9. The outer wall of the piston cylinder 12 is installed inside the outer shell 51. The end of the air guide tube 11 near the piston cylinder 12 is fixedly installed inside the outer shell 51. The outer wall of the sealing plate 14 is slidably connected to the inside of the outer shell 51. The upper surface of the sealing plate 14 is attached to the outer wall of the hanging plate 55.

[0044] Specifically, when the hanging plate 55 rotates to perform the meshing operation, the fixing action of the hanging plate 55 and the sliding column 8 causes the sliding column 8 to slide downward inside the fixed column 9. Simultaneously, the sliding column 8, in conjunction with the fixed column 9, compresses the airbag 10. The gas generated by compressing the airbag 10 is then transported to the piston cylinder 12 through the air guide pipe 11. This, in turn, pushes the piston rod 13 upward inside the piston cylinder 12. As the piston rod 13 slides upward, the fixing action of the piston rod 13 and the sealing plate 14 causes the sealing plate 14 to slide upward inside the outer shell 51. After the sealing plate 14 slides upward a certain distance, its upper surface tightly adheres to the outer wall of the hanging plate 55. This achieves automatic sealing of the opening below the hanging plate 55 during the meshing operation, preventing construction waste and other impurities from entering the outer shell 51 and affecting the normal operation of the internal workpieces.

[0045] Please see the appendix Figure 2 Appendix Figure 3 Appendix Figure 9 and attached Figure 10A magnetic coupler 17 is installed on the inner bottom wall of the housing 1. A rotating disk 18 is rotatably connected inside the separation tank 4, and multiple triangular blocks are installed on the upper surface of the rotating disk 18. The magnetic coupler 17 and the rotating disk 18 are magnetically connected. A fixing rod 19 is fixedly connected inside the rotating disk 18. An electric push rod 15 is fixedly installed inside the housing 1. An electrostatic adsorption roller 16 is rotatably connected to the drive end of the electric push rod 15. A snap-fit ​​assembly 20 is installed on the lower surface of the electrostatic adsorption roller 16. The snap-fit ​​assembly 20 includes a sliding column 203. The outer wall of the sliding column 203 is slidably connected to the inside of the fixing rod 19. The electrostatic adsorption roller 16 is rotatably connected inside the separation tank 4 through the snap-fit ​​assembly 20 and the fixing rod 19. The fastener assembly 20 also includes a second fixing block 201. The upper surface of the second fixing block 201 is fixedly connected to the lower surface of the electrostatic adsorption roller 16. Multiple second fixing posts 202 are installed on the outer wall of the second fixing block 201. The outer wall of the second sliding post 203 is slidably connected to the interior of the second fixing block 201 and the second fixing posts 202. An elastic element 204 is fixedly provided at the end of the second sliding post 203 away from the second fixing block 201. The end of the elastic element 204 away from the second sliding post 203 is fixedly provided inside the second fixing post 202. The end of the second fixing rod 19 away from the rotating disk 18 is slidably connected to the interior of the second fixing block 201. A groove is provided at the end of the second fixing rod 19 away from the rotating disk 18, and the size of the groove is adapted to the second sliding post 203.

[0046] Specifically, after the construction waste enters the separation bin 4 and remains stationary for a period of time, the magnetic coupler 17 is activated by an external control device to drive the rotating disk 18 and the second fixed rod 19 to rotate. When the rotating disk 18 rotates, multiple triangular blocks fixed on its upper surface agitate the construction waste at the bottom, preventing large pieces of waste from pressing down on lighter construction waste and causing incomplete separation. Subsequently, the electric push rod 15 is activated to drive the electrostatic adsorption roller 16 to move downwards to adsorb the upper layer of metal substances, facilitating centralized recycling later. As the electrostatic adsorption roller 16 moves downwards, the fixing action of the electrostatic adsorption roller 16 and the second fixed block 201 will drive the second fixed block 201 to move downwards, further driving the second fixed column 202 and its internal sliding column 203 and elastic element 204 to move downwards synchronously. When the fixed block After moving downwards for a period of time, the second fixed block 201 will contact the top of the second fixed rod 19, further squeezing the second sliding column 203 so that it slides inside the second fixed rod 202. While sliding, it cooperates with the second fixed rod 202 to compress the second elastic element 204. When the second fixed block 201 continues to slide downwards until the second sliding column 203 and the groove opened at the end of the second fixed rod 19 away from the rotating disk 18 are on the same horizontal line, the second elastic element 204 will release its own elastic force to reset the second sliding column 203, so that it slides into the interior of the end of the second fixed rod 19 away from the rotating disk 18. Thus, when the second fixed rod 19 rotates, it drives the rotating disk 18 to rotate synchronously, rotating and adsorbing the metal waste suspended above. This not only improves the thoroughness of adsorption of metal waste, but also increases the adsorption rate.

[0047] Please see the appendix Figure 1 - Appendix Figure 10 A separation method for a flotation separation device for recycling construction waste, the method comprising the following steps:

[0048] S1. Construction waste is fed into the crusher 2 for crushing. The crushed construction waste falls onto the conveyor belt 3 below. Then, the dual-head motor 52 is turned on, driving the lead screw 53 to rotate. This further causes the threaded block 54 to move down and drives the hanging plate 55 to rotate and open inside the outer shell 51, hooking the mesh waste above the conveyor belt 3. Then, the dual-head motor 52 drives the rotating column 6 and the protrusion 71 to rotate, further causing the protrusion 71 to intermittently squeeze the fixing block 72, causing the outer shell 51 to move along the fixing rod. 73 reciprocates and compresses elastic element 74. The elastic force of elastic element 74 causes the outer shell 51 to vibrate, shaking off other construction waste attached to the surface of the mesh garbage hooked on the hanging plate 55. When the hanging plate 55 rotates, it will drive the sliding column 8 to move down along the fixed column 9, squeezing the airbag 10. The gas in the airbag 10 is transported to the piston cylinder 12 through the air guide pipe 11, pushing the piston rod 13 and the sealing plate 14 to move up. The sealing plate 14 fits against the outer wall of the hanging plate 55, sealing the internal channel of the outer shell 51.

[0049] S2. The construction waste processed by S1 is conveyed by the conveyor belt 3 to the separation bucket 4 inside the box 1. Water is injected into the separation bucket 4. By utilizing the buoyancy difference of different components of construction waste, the initial stratification is achieved. By opening the magnetic coupler 17 on the bottom wall of the box 1, the rotating disk 18 inside the separation bucket 4 is driven to rotate through the magnetic connection. This further drives the triangular blocks on the rotating disk 18 to stir the construction waste at the bottom, avoiding large pieces of waste from pressing down on light waste and causing incomplete stratification.

[0050] S3. Start the electric push rod 15 to drive the electrostatic adsorption roller 16 to move down. The electrostatic adsorption roller 16 is connected to the fixed rod 19 through the buckle assembly 20. The sliding column 203 slides into the groove of the fixed rod 19 under the action of the elastic element 204, so that the electrostatic adsorption roller 16 and the fixed rod 19 rotate synchronously. During the rotation of the electrostatic adsorption roller 16, the metal waste suspended in the upper layer of the separation bucket 4 is adsorbed.

[0051] Work process: Turn on the dual-head motor 52 to drive the protrusion 71 to rotate. When the protrusion 71 rotates, its protrusion will intermittently slide into the fixed block 72, further driving the outer shell 51 to slide on the outer wall of the fixed rod 73. During the sliding, the elastic element 74 is compressed. When the protrusion of the protrusion 71 slides out from the inside of the fixed block 72, the elastic element 74 will release its own elasticity to reset the outer shell 51. Through the reciprocating movement of the outer shell 51, the mesh garbage hooked by the hanging plate 55 is shaken, and the remaining construction garbage attached to its surface is shaken off.

[0052] When the hanging plate 55 rotates to perform the meshing operation, it will cause the sliding column 8 to slide downward inside the fixed column 9. During the sliding, the fixed column 9 will compress the air bladder 10. The gas generated by the compressed air bladder 10 will be transported to the piston cylinder 12 through the air guide pipe 11, which will further push the piston rod 13 to slide upward. When the piston rod 13 slides upward, it will cause the sealing plate 14 to move upward inside the outer shell 51. After the sealing plate 14 moves upward to a certain distance, its upper surface will be tightly attached to the outer wall of the hanging plate 55. This will achieve the effect of automatically sealing the opening below the hanging plate 55 during the meshing operation, preventing construction waste and other impurities from entering the interior of the outer shell 51, and ensuring the normal operation of the internal workpiece.

[0053] After the construction waste enters the separation bin 4 and remains for a period of time, the magnetic coupler 17 is activated by an external control device, causing the rotating disk 18 and the fixed rod 19 to rotate. The rotating disk 18 stirs the construction waste at the bottom through the triangular blocks on its surface, preventing large pieces of waste from pressing down on lightweight waste and causing incomplete separation. Then, the electric push rod 15 is activated, causing the electrostatic adsorption roller 16 to move down and adsorb the metal substances suspended in the upper layer, facilitating subsequent centralized recycling. When the electrostatic adsorption roller 16 moves down, it will drive the fixed block 201, the fixed column 202, and the sliding column 203 and the elastic element 204 inside them to move together. As the fixed block 201 moves downward, when it contacts the top of the fixed rod 19, it will squeeze the sliding column 203 to slide within the fixed column 202 and compress the elastic element 204. When the fixed block 201 continues to move downward until the sliding column 203 and the end groove of the fixed rod 19 are at the same horizontal line, the elastic element 204 will release its elastic force to push the sliding column 203 to reset and lock into the end of the fixed rod 19. This achieves the effect of driving the electrostatic adsorption roller 16 to rotate synchronously when the fixed rod 19 rotates, which can improve the thoroughness of metal waste adsorption and increase the adsorption rate.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flotation separation device for recycling construction waste, comprising a housing (1), characterized in that: A crusher (2) is installed on the upper surface of the box (1). A conveyor belt (3) is fixedly installed inside the box (1) and is located directly below the crusher (2). A separation bucket (4) is fixedly installed inside the box (1). Multiple hanging net components (5) are installed inside the box (1). The hanging net components (5) include a double-head motor (52). A rotating column (6) is fixedly installed at the drive end of the double-head motor (52). A vibration component (7) is installed at the end of the rotating column (6) away from the double-head motor (52).

2. The flotation separation device for recycling construction waste according to claim 1, characterized in that: The hanging net assembly (5) also includes a housing (51), the outer wall of which is fixedly connected to the inside of the box (1). The dual-head motor (52) is installed inside the housing (51). A lead screw (53) is fixedly provided at the drive end of the housing (51) away from the rotating column (6). The end of the lead screw (53) away from the dual-head motor (52) is rotatably connected to the inside of the housing (51). A threaded block (54) is threadedly connected to the outer wall of the lead screw (53). A plurality of hanging plates (55) are rotatably connected to the outer wall of the threaded block (54). The outer wall of the hanging plate (55) is rotatably connected to the inside of the housing (51).

3. The flotation separation device for recycling construction waste according to claim 2, characterized in that: The oscillation assembly (7) includes a protrusion (71), the inside of which is fixedly connected to the end of the rotating column (6) away from the dual-head motor (52). The outer wall of the protrusion (71) is slidably connected to a fixing block (72), the outer wall of the fixing block (72) is fixedly connected to the inside of the housing (1), the inside of the outer shell (51) is slidably connected to a fixing rod (73), the end of the fixing rod (73) away from the outer shell (51) is fixedly connected to the inside of the housing (1), the outer wall of the fixing rod (73) is fitted with an elastic element (74), one end of the elastic element (74) is attached to the outer wall of the outer shell (51), and the other end of the elastic element (74) is fixedly set on the inner wall of the outer shell (51).

4. The flotation separation device for recycling construction waste according to claim 2, characterized in that: The hanging plate (55) is fixedly connected to a sliding column (8) at one end near the threaded block (54). A fixed column (9) is slidably connected to the outer wall of the sliding column (8). An airbag (10) is attached to the bottom end of the sliding column (8). An air guide pipe (11) is fixedly installed inside the airbag (10). A piston cylinder (12) is fixedly installed at the end of the air guide pipe (11) away from the fixed column (9). A piston rod (13) is slidably connected inside the piston cylinder (12). A sealing plate (14) is fixedly connected to the top end of the piston rod (13).

5. The flotation separation device for recycling construction waste according to claim 1, characterized in that: A magnetic coupler (17) is installed on the inner bottom wall of the box (1). A rotating disk (18) is rotatably connected inside the separation bucket (4). Multiple triangular blocks are installed on the upper surface of the rotating disk (18). The magnetic coupler (17) and the rotating disk (18) are magnetically connected. A fixing rod (19) is fixedly connected inside the rotating disk (18).

6. The flotation separation device for recycling construction waste according to claim 1, characterized in that: An electric push rod (15) is fixedly installed inside the box (1). The drive end of the electric push rod (15) is rotatably connected to an electrostatic adsorption roller (16). A buckle assembly (20) is installed on the lower surface of the electrostatic adsorption roller (16). The buckle assembly (20) includes a sliding column (203). The outer wall of the sliding column (203) is slidably connected to the inside of the fixed rod (19). The electrostatic adsorption roller (16) is rotatably connected to the inside of the separation bucket (4) through the buckle assembly (20) and the fixed rod (19).

7. The flotation separation device for recycling construction waste according to claim 6, characterized in that: The buckle assembly (20) also includes a second fixing block (201), the upper surface of which is fixedly connected to the lower surface of the electrostatic adsorption roller (16). The outer wall of the second fixing block (201) is equipped with a plurality of second fixing posts (202). The outer wall of the second sliding post (203) is slidably connected to the interior of the second fixing block (201) and the second fixing post (202). An elastic element (204) is fixedly provided at the end of the second sliding post (203) away from the second fixing block (201). The end of the elastic element (204) away from the second sliding post (203) is fixedly provided inside the second fixing post (202). The end of the second fixing rod (19) away from the rotating disk (18) is slidably connected to the interior of the second fixing block (201).

8. The flotation separation device for recycling construction waste according to claim 7, characterized in that: The fixed rod 2 (19) has a groove at the end away from the rotating disk (18), and the size of the groove is adapted to the sliding column 2 (203).

9. A flotation separation device for recycling construction waste according to claim 4, characterized in that: The fixed column (9) is rotatably connected to the inside of the outer shell (51). The airbag (10) is installed inside the fixed column (9). The end of the air guide tube (11) near the airbag (10) is fixedly installed inside the fixed column (9). The outer wall of the piston cylinder (12) is installed inside the outer shell (51). The end of the air guide tube (11) near the piston cylinder (12) is fixedly installed inside the outer shell (51). The outer wall of the sealing plate (14) is slidably connected to the inside of the outer shell (51). The upper surface of the sealing plate (14) is attached to the outer wall of the hanging plate (55).

10. A separation method for a flotation separation device for recycling construction waste, characterized in that, A flotation separation apparatus for recycling construction waste according to any one of claims 1-9, wherein the separation method comprises the following steps: S1. Construction waste is fed into the crusher (2) for crushing. The crushed construction waste falls onto the conveyor belt (3) below. Then, the dual-head motor (52) is turned on, which drives the lead screw (53) to rotate. This further causes the threaded block (54) to move down and drives the hanging plate (55) to rotate and open inside the outer shell (51), hooking the mesh waste above the conveyor belt (3). Then, the dual-head motor (52) drives the rotating column (6) and the protrusion (71) to rotate, which further causes the protrusion (71) to intermittently squeeze the fixing block (72), causing the outer shell (51) to move along the fixing rod (71). 3) The elastic element (74) slides back and forth and compresses the elastic element (74). The shell (51) vibrates through the reset elastic force of the elastic element (74), shaking off the other construction waste attached to the mesh garbage hooked on the hanging plate (55). When the hanging plate (55) rotates, it will drive the sliding column (8) to move down along the fixed column (9), squeezing the airbag (10). The gas in the airbag (10) is transported to the piston cylinder (12) through the air guide pipe (11), pushing the piston rod (13) and the sealing plate (14) to move up. The sealing plate (14) is attached to the outer wall of the hanging plate (55) to seal the internal channel of the shell (51). S2. The construction waste processed by S1 is transported by conveyor belt (3) to the separation bucket (4) inside the box (1). Water is injected into the separation bucket (4). By utilizing the buoyancy difference of different components of construction waste, the stratification is initially achieved. By opening the magnetic coupler (17) on the bottom wall of the box (1), the rotating disk (18) inside the separation bucket (4) is driven to rotate through the magnetic connection. This further drives the triangular block on the rotating disk (18) to stir the bottom construction waste, avoiding large pieces of waste from pressing down on light waste and causing incomplete stratification. S3. Start the electric push rod (15) to drive the electrostatic adsorption roller (16) to move down. The electrostatic adsorption roller (16) is connected to the fixed rod two (19) through the buckle assembly (20). The sliding column two (203) slides into the groove of the fixed rod two (19) under the action of the elastic element two (204), so that the electrostatic adsorption roller (16) and the fixed rod two (19) rotate synchronously. During the rotation of the electrostatic adsorption roller (16), the metal waste suspended in the upper layer in the adsorption separation bucket (4) is adsorbed.

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