A construction waste sorting machine

Abstract

This invention relates to the field of construction waste treatment technology, specifically to a construction waste sorting machine, including a frame and a crusher. A vibrating guide device is rotatably mounted on the side wall of the frame, and a conveyor is located below the frame. The crusher is located on one side of the frame, and its inlet is connected to the guide device. A separation device for separating reinforcing bars and cement is placed on the side of the crusher away from the frame, and the separation device is aligned with the outlet of the crusher. This invention uses a jaw crusher to crush stones and sets a separation device at the outlet of the crusher. The crushed stones fall below the separation device, while the reinforcing bars move to a collection box along with the magnets on the separation device. After crushing the reinforced concrete, the separation of stones and reinforcing bars is automatically completed, and the reinforcing bars are automatically collected.

Description

Technical Field

[0001] This invention relates to the field of construction waste treatment technology, specifically to a construction waste sorting machine. Background Technology

[0002] With the increasing size of urban buildings, the use of reinforced concrete is also increasing. Reinforced concrete is one of the most common materials in modern construction. After these buildings are demolished, a lot of construction waste containing reinforced concrete is generated. This construction waste needs to be sorted and recycled, which requires a construction waste sorting machine.

[0003] Currently, the sorting of construction waste mainly adopts a combination of manual and mechanical sorting. The construction waste is initially screened by workers at the construction site. Steel bars that can be directly taken away are picked up from the construction waste. The remaining construction waste is transported to a crusher by mechanical equipment for crushing. The crushed stones or powder are then sent to a filter and iron removal device for further processing.

[0004] However, reinforced concrete stones contain steel bars that can be directly recycled. Current technology requires crushing the steel bars and stones together into powder, and then using a magnetic adsorption device to attract the iron-containing powder in order to recycle the steel bars. This process is quite cumbersome, and crushing the stones and steel bars into powder can easily lead to insufficient removal of iron-containing substances, resulting in high iron content in the recycled stone and affecting the quality of building material recycling.

[0005] To address this issue, a construction waste sorting machine is proposed, which includes a separation device installed at the discharge port of a crusher. The crusher is a jaw crusher, and the separation device separates the reinforcing bars and stones removed from the crusher outlet to solve the aforementioned technical problems. Summary of the Invention

[0006] The purpose of this invention is to provide a construction waste sorting machine that uses an alligator crusher to crush stones and places a separation device at the discharge port of the crusher to automatically separate steel bars and stones, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] The device includes a frame and a crusher. A vibrating material guide device is rotatably installed on the side wall of the frame. A conveyor is provided below the frame. The crusher is located on one side of the frame. The feed inlet of the crusher is connected to the material guide device. A separation device for separating steel bars and cement is placed on the side of the crusher away from the frame. The separation device is aligned with the discharge outlet of the crusher.

[0009] Preferably, the separation device includes:

[0010] Conveyor 2 is placed below the crusher. Multiple magnetic strips are spaced apart on the conveyor 2, and multiple discharge holes 2 are provided on the conveyor 2.

[0011] The conveyor has two guide rails symmetrically fixedly installed on both sides. Multiple magnetic strips are movably installed laterally on the two guide rails. Each guide rail has a guide groove. One of the guide grooves contains a positive and a negative conductive plate for conducting electricity. An insulating plate is provided between the positive and negative conductive plates. Each magnetic strip has a built-in cavity, and a current-carrying coil is provided in the built-in cavity. The coil is electrically connected to the positive and negative conductive plates. A conveyor is located below the conveyor.

[0012] Preferably, the positive guide plate and the negative guide plate are distributed in the upper part, the left arc-shaped part and the bottom left part of the guide groove, and the remaining part of the guide groove is not provided with positive guide plates and negative guide plates.

[0013] Preferably, the feeding device includes:

[0014] The transmission mechanism is symmetrically and rotatably mounted on both sides of the frame. A feeding frame is rotatably mounted on the top of the transmission mechanism. The feeding frame has multiple unloading holes. The transmission mechanism is configured as a linkage drive.

[0015] Preferably, both ends of the magnet strip are fixedly connected to sliders, both sliders are T-shaped, the end of the slider away from the magnet strip is embedded in the guide groove, and each slider has a conductive post one and a conductive post two spaced apart on the top wall of the end away from the magnet strip.

[0016] Preferably, a secondary magnetic attraction device is fixedly connected to the bottom wall of the guide rail, the secondary magnetic attraction device is located in the middle of the guide rail, and an iron collection box is placed on the side of the secondary magnetic attraction device.

[0017] Preferably, the secondary magnetic attraction device includes:

[0018] The secondary magnetic attraction device includes:

[0019] A guide frame is symmetrically fixedly connected to the bottom wall of the two guide rails, and the guide frame is located directly above a portion of the positive guide plate and the negative guide plate.

[0020] Magnetic rods are fixedly connected at intervals on the inner wall of the bottom of the guide frame.

[0021] Preferably, a vibration box is placed on one side of the conveyor three, the inlet of the vibration box is aligned with the conveyor three, and a vibration mechanism is provided inside the vibration box, the vibration mechanism being a vertical vibration structure.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] 1. A jaw crusher is used to crush stones, and a separation device is installed at the outlet of the crusher. The separation device is equipped with magnetic bars to attract and pull the steel bars. After the crushed stone passes through the separation device, it falls below the separation device, and the steel bars and stone are separated. When each magnetic bar moves to the end near the iron collection box, it will automatically lose power. The magnetic bar loses its magnetic force, and the steel bars will automatically fall into the iron collection box, completing the automatic collection of steel bars. When each magnetic bar moves to the area below the crusher outlet, it will automatically regain power and restore its magnetic force. Only one device is needed to complete the separation of stone and steel bars and the automatic collection of steel bars.

[0024] The guide groove is equipped with positive and negative guide plates that allow multiple magnet bars to be energized together. The positive and negative guide plates guide the magnet bars. When each magnet bar moves to a position where there are no positive and negative guide plates, the power is automatically cut off. There is no need to set a circuit board in each magnet bar, nor is it necessary to set up sensors and programs to identify the power-off position. The equipment operates stably.

[0025] 2. The secondary magnetic attraction device includes a guide box and a magnetic rod. Both the guide box and the magnetic rod are located below the crusher's discharge port and above the positive and negative guide plates. When the stone and any small pieces of steel bars and iron powder that have been missed pass through the guide box, the steel bars and iron powder are attracted by the magnetic rod and will not fall down with the stone. This further demagnetizes the crushed stone, removing the steel bars and reducing the magnetic content. Subsequent demagnetization is no longer necessary. When one of the magnetic bars moves to the bottom of the guide box, the magnetic rod attracts the bar, and the bar's magnetic force is much greater than the rod's. Therefore, the iron pieces and iron powder on the rod are attracted to the bar, which then carries the steel bars away, completing the secondary demagnetization operation.

[0026] By using a magnetic rod and an iron bar in combination, the magnetic force of the iron bar is much greater than that of the magnetic rod, which attracts the steel bars and iron powder on the magnetic rod, thus completing the automatic cleaning process of the magnetic rod.

[0027] 3. Multiple discharge holes are opened on the conveyor box, and the material is fed by vibration. During the feeding process, the soil mixed in with the stone is shaken off and separated from the stone, which reduces the soil content in the stone to be sorted and facilitates subsequent sorting and processing operations.

[0028] 4. The transmission is achieved by setting up a chain and sprockets 2 and 1, so that conveyor 2 and conveyor 3 can rotate synchronously. Only one motor is needed to rotate the two devices, and there is no need to add another motor for driving. The structure is simple and easy to operate. Attached Figure Description

[0029] Figure 1This is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 This is a perspective view of the overall structure of the present invention;

[0031] Figure 3 This is a cross-sectional view of the internal structure of the guide groove of the present invention;

[0032] Figure 4 This is a cross-sectional view of the internal structure of the guide frame of the present invention;

[0033] Figure 5 This is a side cross-sectional view of the guide groove structure of the present invention.

[0034] In the diagram: 1. Frame; 2. Feeding frame; 3. Crusher; 4. Conveyor 1; 5. Transmission mechanism; 6. Conveyor 2; 7. Vibration box; 8. Conveyor 3; 9. Chain; 10. Iron collection box; 11. Discharge hole 1; 12. Discharge hole 2; 13. Magnetizing bar; 14. Guide rail; 15. Guide frame; 16. Magnetic rod; 17. Sprocket 1; 18. Sprocket 2; 19. Insulating plate; 20. Guide groove; 21. Positive guide plate; 22. Negative guide plate; 23. Slider; 24. Coil; 25. Conductive post 1; 26. Conductive post 2. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below 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.

[0036] Please see Figures 1 to 5 This invention provides a construction waste sorting machine, the technical solution of which is as follows:

[0037] A construction waste sorting machine includes a frame 1 and a crusher 3. A vibrating guide device is rotatably mounted on the side wall of the frame 1. A conveyor 4 is provided below the frame 1. The crusher 3 is located on one side of the frame 1, and its inlet is connected to the guide device. A separation device for separating steel bars and cement is placed on the side of the crusher 3 away from the frame 1. The separation device is aligned with the outlet of the crusher 3. The guide device includes:

[0038] The transmission mechanism 5 is symmetrically and rotatably mounted on both sides of the frame 1. A feeding frame 2 is rotatably mounted on the top of the transmission mechanism 5. The feeding frame 2 has multiple unloading holes 11. The transmission mechanism 5 is configured as a linkage drive.

[0039] When sorting construction waste, the equipment is started manually, and an excavator or loader is used to scoop up the construction waste from the ground and place it into the feeding frame 2 at the top of the transmission mechanism 5. An electric motor is fixedly installed on the side wall at one end of the bottom of the frame 1. A cam is fixedly connected to the output end of the electric motor. The cam is rotatably connected to the transmission mechanism 5. When the electric motor is powered on and rotates, it drives the cam to rotate, which in turn drives the transmission mechanism 5 to reciprocate, resulting in a vibration effect. The construction waste placed into the feeding frame 2 contains soil and construction waste powder. Under the vibration driven by the electric motor, the soil and construction waste powder fall down from the discharge hole 11 and onto the conveyor 4. The conveyor 4 is equipped with a conveyor belt to catch the falling soil and construction waste powder. The conveyor transports the construction waste powder and soil to the next sorting equipment to separate the soil and construction waste powder, or loads them into a loading box for transport to the next processing step.

[0040] Large stones are transported to the feed inlet of the crusher 3 by the vibration of the transmission mechanism 5. The crusher 3 is a jaw crusher with a striped crushing structure inside. It will not damage the reinforcing steel when crushing stones. The crushed stones and reinforcing steel are removed from the discharge outlet of the crusher 3 and fall onto the separation device located on one side of the discharge outlet of the crusher 3, as shown in the figure. The separation device includes:

[0041] Conveyor 2 6 is placed below the crusher 3. Multiple magnetic strips 13 are spaced apart on conveyor 2 6. Conveyor 2 6 is equipped with a conveyor belt made of lightweight iron chains. The interval between each iron chain forms a discharge hole 2 12. A motor is fixedly installed on the side wall of one end of conveyor 2 6. A roller is fixedly installed on the output end of the motor. The iron chain is fixedly connected to the roller and rotates with the roller. The magnetic strips 13 attract the steel bars that fall onto the separation device, and the crushed stones fall below the separation device. Conveyor 3 8 is located below conveyor 2 6. The falling stones fall onto conveyor 3 8. Multiple magnetic strips 13 are fixedly connected to the iron chains and spaced apart, and thus move with the iron chains.

[0042] Two guide rails 14 are symmetrically fixedly installed on both sides of the second conveyor 6. Multiple magnetic strips 13 are movably installed laterally on the two guide rails 14. Each of the two guide rails 14 has a guide groove 20. One of the guide grooves 20 has a positive conductive plate 21 and a negative conductive plate 22 for conducting electricity. An insulating plate 19 is provided between the positive conductive plate 21 and the negative conductive plate 22. The magnetic strip 13 has an internal cavity, and an energized coil 24 is provided in the internal cavity. The coil 24 is electrically connected to the positive conductive plate 21 and the negative conductive plate 22. A third conveyor 8 is provided below the second conveyor 6.

[0043] Both ends of the magnetic strip 13 are fixedly connected to sliders 23. Both sliders 23 are T-shaped. The end of the slider 23 away from the magnetic strip 13 is embedded in the guide groove 20, so that the magnetic strip 13 is limited by the guide groove 20. The magnetic strip 13 can only move in the direction defined by the guide groove 20. Each slider 23 has a conductive post 1 25 and a conductive post 26 spaced apart on the top wall of the end away from the magnetic strip 13. The conductive post 1 25 and the conductive post 26 slide in contact with the guide plate 1 and the guide plate 2, respectively. An insulating plate 19 is provided between the positive guide plate 21 and the negative guide plate 22. The conductive post 1 25 and the conductive post 26 are connected to the coil 24 wire in the magnetic strip 13, so that the magnetic strip 13 can be continuously powered while moving, and maintain a strong magnetic force to continuously attract the steel bar.

[0044] The positive guide plate 21 and the negative guide plate 22 are distributed in the upper part, the left arc-shaped part, and the bottom left part of the guide groove 20. The other part of the guide groove 20 is not equipped with positive guide plates 21 and negative guide plates 22. The magnetic strip 13 moves with the iron chain. When the magnetic strip 13 moves to the arc-shaped part at the end of the guide rail 14, the first conductive post 25 and the second conductive post 26 disengage from the positive guide plate 21 and the negative guide plate 22, and the power is disconnected. The coil 24 in the magnetic strip 13 loses its magnetic force due to the power failure. The steel bar on the magnetic strip 13 detaches from the magnetic strip 13 and falls off. A collection box 10 is placed on one side of the conveyor 2 6. The steel bar that detaches from the magnetic strip 13 falls into the collection box 10, completing the collection of the steel bar.

[0045] Two guide rails 14 are symmetrically fixedly installed on both sides of the conveyor 6. Multiple magnetic strips 13 are movably installed laterally on the two guide rails 14. Each of the two guide rails 14 has a guide groove 20. One of the guide grooves 20 has a positive conductive plate 21 and a negative conductive plate 22 for conducting electricity. The positive conductive plate 21 is connected to the positive terminal of the external power supply, and the negative conductive plate 22 is connected to the negative terminal of the external power supply. The magnetic strip 13 has a built-in cavity, and an energized coil 24 is installed in the built-in cavity. The coil 24 is electrically connected to the positive conductive plate 21 and the negative conductive plate 22. After the positive conductive plate 21 and the negative conductive plate 22 are energized, the coil 24 generates a strong magnetic force, which can attract the steel bars falling from the outlet of the crusher 3, so that the steel bars are separated from the crushed stones.

[0046] The broken stones fall onto conveyor 38, which transports the broken stones to the next process. A secondary magnetic attraction device is fixedly connected to the bottom wall of the guide rail 14. The secondary magnetic attraction device is located in the middle of the guide rail 14, above the conveyor 38, and slightly to the right of the conveyor 38 in the horizontal direction.

[0047] like Figure 3 As shown, the secondary magnetic attraction device includes:

[0048] The secondary magnetic attraction device includes:

[0049] The guide frame 15 is symmetrically fixedly connected to the bottom wall of the two guide rails 14. The guide frame 15 is located directly above a part of the positive guide plate 21 and the negative guide plate 22.

[0050] Magnetic rods 16 are fixedly connected at intervals on the bottom inner wall of the guide frame 15.

[0051] The stones discharged from the outlet of crusher 3 fall into the guide frame 15 through the discharge hole 2 12. At this time, small steel bars also fall down from the discharge hole 2 12 along with the stones. The stones fall onto the conveyor 3 8 through the gaps between multiple magnetic rods 16, while the steel bars and magnetic materials are attracted by the magnetic rods 16 and will not fall onto the conveyor with the stones. When one of the magnetic bars 13 moves to the bottom of the guide box, the magnetic force range of the magnetic rod 16 attracts the magnetic bar 13, and the magnetic force of the magnetic bar 13 is much greater than that of the magnetic rod 16. Therefore, the iron blocks and iron powder on the magnetic rod 16 are attracted to the magnetic bar 13, completing the secondary demagnetization operation.

[0052] A vibrating box 7 is placed on one side of the conveyor 8. The inlet of the vibrating box 7 is aligned with the conveyor 8. The demagnetized stone is transported by the conveyor belt on the conveyor 8 and falls into the vibrating box 7. The vibrating box 7 is used to further separate the powdered stone and the block stone. The vibrating box 7 is equipped with a vibration mechanism. The vibration mechanism is a vertical vibration structure, which can better separate the stone. The stone flowing out of the vibrating box 7 will enter the next process or be loaded into the loading box.

[0053] One end of the second conveyor 6 is fixedly connected to a second sprocket 18, which is fixedly connected to the motor output end of the second conveyor 6. The motor drives the first sprocket 17 to rotate. One end of the third conveyor 8 is fixedly installed with a first sprocket 17. The second sprocket 18 and the first sprocket 17 are connected to a chain 9. The second sprocket 18 drives the first sprocket 17 to rotate through the chain 9, which in turn drives the conveyor belt on the third conveyor 8 to rotate, thus realizing a linkage mechanism. The structure is compact and simple.

[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 construction waste sorting machine, comprising a frame (1) and a crusher (3), characterized in that: A vibrating material guiding device is rotatably installed on the side wall of the frame (1). A conveyor (4) is provided below the frame (1). The crusher (3) is located on one side of the frame (1). The feed inlet of the crusher (3) is connected to the material guiding device. A separation device for separating steel bars and cement is placed on the side of the crusher (3) away from the frame (1). The separation device is aligned with the discharge port of the crusher (3). The separation device includes: Conveyor 2 (6), below the crusher (3) is conveyor 2 (6), and multiple magnet bars (13) are spaced on conveyor 2 (6); The guide rail (14) is symmetrically fixed on both sides of the second conveyor (6). Multiple magnet bars (13) are laterally movably installed on the two guide rails (14). Guide grooves (20) are opened in both guide rails (14). One of the guide grooves (20) is provided with a positive conductive plate (21) and a negative conductive plate (22) for conducting electricity. A secondary magnetic attraction device is fixedly connected to the bottom wall of the guide rail (14). The secondary magnetic attraction device is located in the middle of the guide rail (14). A metal collection box (10) is placed on the side of the secondary magnetic attraction device. The positive guide plate (21) and the negative guide plate (22) are distributed in the upper part, the left arc part and the bottom left part of the guide groove (20), and the other part of the guide groove (20) is not provided with positive guide plate (21) and negative guide plate (22). The secondary magnetic attraction device includes: The guide frame (15) is symmetrically fixedly connected to the bottom wall of the two guide rails (14). The guide frame (15) is located directly above a part of the positive guide plate (21) and the negative guide plate (22). Magnetic rods (16) are fixedly connected at intervals on the inner wall of the bottom of the guide frame (15). The magnetic force of the magnetic strip (13) is much greater than the attraction force of the magnetic rods (16).

2. The construction waste sorting machine according to claim 1, characterized in that: The conveyor is provided with multiple discharge holes (12); an insulating plate (19) is provided between the positive guide plate (21) and the negative guide plate (22); the magnet bar (13) is provided with an internal cavity, and an energized coil (24) is provided in the internal cavity; the coil (24) is electrically connected to the positive guide plate (21) and the negative guide plate (22); and a conveyor (8) is provided below the second conveyor (6).

3. The construction waste sorting machine according to claim 2, characterized in that: The feeding device includes: The transmission mechanism (5) is symmetrically and rotatably mounted on both sides of the frame (1). A feeding frame (2) is rotatably mounted on the top of the transmission mechanism (5). Multiple unloading holes (11) are opened on the feeding frame (2). The transmission mechanism (5) is configured as a linkage transmission.

4. A construction waste sorting machine according to claim 2, characterized in that: Both ends of the magnet strip (13) are fixedly connected to sliders (23). Both sliders (23) are T-shaped. The end of the slider (23) away from the magnet strip (13) is embedded in the guide groove (20). Each slider (23) has a conductive post one (25) and a conductive post two (26) spaced apart on the top wall of the end away from the magnet strip (13).

5. A construction waste sorting machine according to claim 2, characterized in that: One end of the second conveyor (6) is fixedly connected to a second sprocket (18), and one end of the third conveyor (8) is fixedly installed with a first sprocket (17). The second sprocket (18) and the first sprocket (17) are together connected to a chain (9).

6. A construction waste sorting machine according to claim 2, characterized in that: A vibration box (7) is placed on one side of the conveyor three (8). The feed inlet of the vibration box (7) is aligned with the conveyor three (8). The vibration box (7) is equipped with a vibration mechanism, which is a vertical vibration structure.

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