A building waste magnetic metal separation device

Abstract

The utility model provides a kind of construction waste magnetic separation metal device, belong to waste recovery technical field, including box, the inside of the box is provided with magnetic separation mechanism, the inside of the magnetic separation mechanism is provided with drying assembly, the top of the box is provided with conveying assembly in one side. The utility model is provided with magnetic separation mechanism, when using, start second motor, drive fixed link, crushing blade and crushing knife rotation, can be crushed and handled to construction waste, crushed waste falls on conveyer belt, starts first motor, makes rotating roller and magnetic roller drive conveyer belt rotation, magnetic roller adsorbs ferromagnetic metal in waste, non-metal material naturally falls to discharge port, to realize the separation of metal and non-metal, the drying assembly is set, start dryer, gas is conveyed to gas outlet by gas pipe, drying treatment is carried out to crushed waste, damp waste is easy to cake, leading to magnetic roller difficult to effectively adsorb, improve adsorption rate after drying.

Description

Technical Field

[0001] This utility model relates to the field of waste recycling technology, and more specifically, to a magnetic metal separation device for construction waste. Background Technology

[0002] Construction waste often contains metallic impurities such as steel bars and iron plates. These metals can be efficiently separated by magnetic separators. Magnetic vibrating screens and rotary magnetic separators use magnetic adsorption to separate ferrous impurities from non-metallic materials such as concrete and bricks, thus achieving metal recycling. The steel bars and other metallic materials recovered through magnetic separation can be remelted and reused, reducing dependence on primary resources such as iron ore and lowering production costs in the construction industry.

[0003] A search revealed that Chinese Patent Publication No. CN222240723U discloses "a recyclable metal magnetic separation device, including a base, a first housing, a screening mechanism, a transport mechanism, and a second housing. The first housing is fixed to the upper end of the base, the transport mechanism is connected inside the first housing, the screening mechanism is connected to the upper end of the transport mechanism, and the second housing is connected to the upper end of the screening mechanism. The upper end of the second housing is set as a feed inlet. The advantages of this utility model are: after construction waste is put into the feed inlet, the electromagnet pusher in the screening mechanism magnetically attracts the metal in the waste, and pushes the non-metal in the waste to the first guide rail for discharge. After the magnetic force of the electromagnet pusher is disconnected, the electromagnet pusher pushes the recovered metal to the second guide rail for collection, thereby realizing the recovery of metal from construction waste. The operation is simple and convenient." However, the following defects still exist:

[0004] (1) Although the device can perform magnetic separation to recover metals, the metals in construction waste are often wrapped in concrete, bricks or plastics. When not crushed, magnetic separation can only adsorb the exposed parts, resulting in a large amount of metal remaining in non-magnetic waste, reducing the metal recovery rate and recovery purity.

[0005] (2) The device is not equipped with a drying component. In damp construction waste, fine particles may adhere to the metal surface, hindering the magnetic separation equipment from directly contacting the metal, reducing the magnetic separation efficiency. Furthermore, damp metal is prone to rust when stored after recycling, reducing its reuse value.

[0006] Therefore, we have made improvements to this and proposed a magnetic metal separation device for construction waste. Utility Model Content

[0007] The purpose of this invention is to address the problem that while existing magnetic separation devices for construction waste can recover metals through magnetic separation, the metals in construction waste are often encased in concrete, bricks, or plastic. When the metals are not crushed, magnetic separation can only adsorb the exposed parts, resulting in a large amount of metal remaining in the non-magnetic waste, which reduces the metal recovery rate and purity.

[0008] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0009] A magnetic metal separation device for construction waste is proposed to address the aforementioned issues.

[0010] The specific details of this utility model are as follows:

[0011] The device includes a housing, inside which a magnetic separation mechanism is installed, inside which a drying component is installed, and on one side of the top of the housing, a conveying component is installed.

[0012] The magnetic separation mechanism includes a first motor, a rotating rod, a rotating roller, a first pulley, a belt, a second pulley, a rotating shaft, a magnetic roller, a conveyor belt, a discharge port, a collecting hopper, and a crushing assembly. The first motor is bolted to the outer wall of the housing. One end of the rotating rod is fixedly connected to the output end of the first motor, and the other end of the rotating rod is rotatably connected to the inner wall of the housing. The rotating roller is fixedly connected to the side wall of the rotating rod. The first pulley is located at the end of the rotating rod near the first motor. One end of the belt is located outside the first pulley, and the second pulley is located at the other end of the belt. The rotating shaft is fixedly connected to the side wall of the second pulley. The magnetic roller is welded to the outside of the rotating shaft. The conveyor belt is located outside the magnetic roller and the rotating roller. The discharge port is located on the side wall of the housing, and the collecting hopper is connected to the bottom of the housing.

[0013] As a preferred technical solution of this utility model, the crushing assembly includes a crushing box, a second motor, a fixing rod, a crushing blade, a crushing knife, a fixing cylinder, and a hole. The crushing box is disposed on the top of the box body, the second motor is bolted to the side wall of the crushing box, the fixing rod is disposed at the output end of the second motor, one end of the crushing blade is welded to the side wall of the fixing rod, the crushing knife is welded to the other end of the crushing blade, the fixing cylinder is fixedly connected to the inner wall of the box body near the second motor, and the hole is opened on the outer wall of the fixing cylinder.

[0014] As a preferred technical solution of this utility model, the drying component includes a dryer, an air supply pipe and an air outlet. The dryer is disposed on the side wall of the crushing box, the air supply pipe is connected to the output end of the dryer, and the air outlet is opened on the side wall of the air supply pipe.

[0015] As a preferred technical solution of this utility model, the conveying assembly includes a conveying motor, a connecting rod, a spiral blade, a box door, a conveying channel, and a feeding hopper. The conveying motor is located on one side of the crushing box, the connecting rod is located at the output end of the conveying motor, the spiral blade is welded to the outer wall of the connecting rod, the box door is hinged to the side wall of the crushing box away from the second motor, the conveying channel is fixedly connected to the side wall of the box door, and the feeding hopper is located at the top of the conveying channel.

[0016] As a preferred technical solution of this utility model, the bottom of the box is fixedly connected with two limiting strips, and grooves are provided on the opposite side walls of the two limiting strips, and the collecting hopper matches the grooves.

[0017] As a preferred technical solution of this utility model, a guide block is provided at the bottom of the discharge port. The guide block is triangular, and a recycling trough is provided on one side of the bottom of the box.

[0018] As a preferred technical solution of this utility model, a handle is provided on the side wall of the collection hopper, and a support frame is fixedly connected to the side wall of the bottom of the box.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] In the solution of this utility model:

[0021] 1. The magnetic separation mechanism, when in use, starts the second motor, which drives the fixed rod, crushing blades, and crushing knife to rotate, thus crushing the construction waste. The crushed waste falls onto the conveyor belt. Then, the first motor is started, which drives the rotating rod and the first pulley to rotate, causing the rotating roller and magnetic roller to drive the conveyor belt to rotate. The falling construction waste is then transported to the magnetic roller, which adsorbs the ferromagnetic metals in the waste. Non-metallic materials fall naturally to the discharge port. When the adsorbed metals reach the bottom of the conveyor belt, they are released from the magnetic field and fall into the collection hopper, thus achieving the separation of metals and non-metals.

[0022] 2. With the drying components in place, when the dryer is started, gas is delivered to the air outlet through the air supply pipe to dry the crushed waste. Damp waste is prone to forming clumps and encapsulating metal particles, making it difficult for the magnetic roller to effectively adsorb them. After drying, the metal is more fully exposed, improving the adsorption rate. Attached Figure Description

[0023] Figure 1 A schematic diagram of the structure of the magnetic metal separation device for construction waste provided by this utility model;

[0024] Figure 2 A partial structural diagram of the magnetic separation mechanism of the magnetic separation device for construction waste metal separation provided by this utility model;

[0025] Figure 3 A schematic diagram of the magnetic separation mechanism of the magnetic separation device for construction waste metal separation provided by this utility model;

[0026] Figure 4 The magnetic metal separation device for construction waste provided by this utility model Figure 3 Enlarged view of point A in the middle;

[0027] Figure 5 A schematic diagram of the second motor structure of the magnetic metal separation device for construction waste provided by this utility model;

[0028] Figure 6 A schematic diagram of the drying component structure of the magnetic metal separation device for construction waste provided by this utility model;

[0029] Figure 7 A schematic diagram of the conveying component structure of the magnetic metal separation device for construction waste provided by this utility model.

[0030] The image shows:

[0031] 1. Housing; 2. Magnetic separation mechanism; 3. Drying assembly; 4. Conveying assembly; 5. Limiting strip; 6. Groove; 7. Guide block; 8. Recycling trough; 9. Handle; 10. Support frame; 201. First motor; 202. Rotating rod; 203. Rotating roller; 204. First pulley; 205. Belt; 206. Second pulley; 207. Rotating shaft; 208. Magnetic roller; 209. Discharge port; 210. Collection hopper; 211. Crushing unit Components; 2111, Crushing box; 2112, Second motor; 2113, Fixing rod; 2114, Crushing blade; 2115, Crushing knife; 2116, Fixing cylinder; 2117, Hole; 212, Conveyor belt; 301, Dryer; 302, Air supply pipe; 303, Air outlet; 401, Conveyor motor; 402, Connecting rod; 403, Spiral blade; 404, Box door; 405, Conveying channel; 406, Feed hopper. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0033] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0034] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] like Figure 1-7 As shown, this embodiment proposes a magnetic metal separation device for construction waste, including a box 1, a magnetic separation mechanism 2 is arranged inside the box 1, a drying component 3 is arranged inside the magnetic separation mechanism 2, and a conveying component 4 is arranged on one side of the top of the box 1.

[0037] like Figure 2 and Figure 3 As shown, the magnetic separation mechanism 2 includes a first motor 201, a rotating rod 202, a rotating roller 203, a first pulley 204, a belt 205, a second pulley 206, a rotating shaft 207, a magnetic roller 208, a conveyor belt 212, a discharge port 209, a collection hopper 210, and a crushing assembly 211. The first motor 201 is bolted to the outer wall of the housing 1. One end of the rotating rod 202 is fixedly connected to the output end of the first motor 201, and the other end of the rotating rod 202 is rotatably connected to the inner wall of the housing 1. The rotating roller 203 is fixedly connected to the rotating rod 204. On the side wall of 2, the first pulley 204 is located at one end of the rotating rod 202 near the first motor 201, one end of the belt 205 is located outside the first pulley 204, the second pulley 206 is located at the other end of the belt 205, the rotating shaft 207 is fixedly connected to the side wall of the second pulley 206, the magnetic roller 208 is welded to the outside of the rotating shaft 207, the conveyor belt 212 is located outside the magnetic roller 208 and the rotating roller 203, the discharge port 209 is opened on the side wall of the box 1, and the collection hopper 210 is connected to the bottom of the box 1. When in use, the first motor 201 is started, which drives the rotating rod 202 and the first pulley 204 to rotate, thereby driving the belt 205, the second pulley 206 and the rotating shaft 207 to rotate. This causes the rotating roller 203 and the magnetic roller 208 to drive the conveyor belt 212 to rotate, which can transport the falling construction waste to the magnetic roller 208. The magnetic roller 208 is made of strong magnetic materials such as neodymium iron boron, which can adsorb ferromagnetic metals in the waste. Non-metallic materials are not magnetic and are not affected by magnetic force, so they fall naturally to the discharge port 209. The adsorbed metals reach the bottom of the conveyor belt 212 as the magnetic roller 208 rotates. The metal materials leave the magnetic field and fall into the collection hopper 210, thereby achieving the separation of metals and non-metals. The conveyor belt 212 and the magnetic roller 208 work together without manual intervention, improving processing efficiency and magnetic separation purity.

[0038] like Figure 4 and Figure 5As shown, the crushing assembly 211 includes a crushing box 2111, a second motor 2112, a fixing rod 2113, a crushing blade 2114, a crushing knife 2115, a fixing cylinder 2116, and a hole 2117. The crushing box 2111 is located on the top of the box body 1. The second motor 2112 is bolted to the side wall of the crushing box 2111. The fixing rod 2113 is located at the output end of the second motor 2112. One end of the crushing blade 2114 is welded to the side wall of the fixing rod 2113. The crushing knife 2115 is welded to the other end of the crushing blade 2114. The fixing cylinder 2116 is fixedly connected to the inner wall of the box body 1 near the second motor 2112. The hole 2117 is opened on the outer wall of the fixing cylinder 2116. When in use, the second motor 2112 is started. The second motor 2112 drives the fixed rod 2113, the crushing blade 2114 and the crushing knife 2115 to rotate, which can crush the construction waste. The metal in the construction waste is usually tightly wrapped by concrete. After crushing, the concrete is broken into small pieces, and the metal is exposed, which is easy for the magnetic roller 208 to adsorb and reduce the interference of impurities.

[0039] like Figure 6 As shown, the drying assembly 3 includes a dryer 301, an air supply pipe 302, and an air outlet 303. The dryer 301 is mounted on the side wall of the crushing chamber 2111, the air supply pipe 302 is connected to the output end of the dryer 301, and the air outlet 303 is located on the side wall of the air supply pipe 302. When in use, the dryer 301 is started, and gas is transported through the air supply pipe 302 to the air outlet 303 to dry the crushed waste material. Wet waste material easily forms slurry or clumps, encapsulating metal particles and making it difficult for the magnetic roller 208 to effectively adsorb them. After drying, the metal is more fully exposed, improving the adsorption rate.

[0040] like Figure 7 As shown, the conveying assembly 4 includes a conveying motor 401, a connecting rod 402, a spiral blade 403, a door 404, a conveying channel 405, and a feed hopper 406. The conveying motor 401 is located on one side of the crushing box 2111, the connecting rod 402 is located at the output end of the conveying motor 401, the spiral blade 403 is welded to the outer wall of the connecting rod 402, the door 404 is hinged to the side wall of the crushing box 2111 away from the second motor 2112, the conveying channel 405 is fixedly connected to the side wall of the door 404, and the feed hopper 406 is opened at the top of the conveying channel 405. When in use, pour the construction waste into the feed hopper 406, start the conveyor motor 401 to drive the connecting rod 402 and the spiral blade 403 to rotate, and the waste can be conveyed from the conveyor 405 to the crushing box 2111. The closed design of the spiral blade 403 can effectively convey mixed construction waste containing dust, fragments and metal shavings, and prevent lightweight materials from being scattered by wind or wet materials from adhering.

[0041] like Figure 1As shown, two limiting strips 5 are fixedly connected to the bottom of the housing 1. Grooves 6 are formed on the opposite side walls of the two limiting strips 5, and the collecting hopper 210 fits into the grooves 6. The limiting strips 5 and grooves 6 allow the collecting hopper 210 to be pulled out directly. During magnetic separation, as metal material continuously accumulates, the fully loaded collecting hopper 210 can be directly replaced, improving magnetic separation efficiency and facilitating the removal of magnetic impurities, preventing long-term material accumulation from affecting the separation purity.

[0042] like Figure 1 As shown, a guide block 7 is provided at the bottom of the discharge port 209. The guide block 7 is triangular, and a recycling trough 8 is provided on one side of the bottom of the box body 1. Non-magnetic materials fall naturally due to gravity, and the guide block 7 can guide them to the recycling trough 8 for recycling, realizing resource utilization and reducing landfill pressure.

[0043] like Figure 1 As shown, a handle 9 is provided on the side wall of the collection hopper 210, and a support frame 10 is fixedly connected to the side wall of the bottom of the housing 1. The handle 9 facilitates pushing and pulling the collection hopper 210, and the support frame 10 fixes the magnetic separator to prevent the equipment from shifting or tipping over due to mechanical vibration, thus ensuring magnetic separation efficiency.

[0044] Specifically, in use, this magnetic metal separation device for construction waste involves connecting the first motor 201, the second motor 2112, the conveyor motor 401, and the dryer 301 to an external power source. Construction waste is then poured into the feed hopper 406. The conveyor motor 401 is started, driving the connecting rod 402 and the spiral blade 403 to rotate, conveying the waste from the conveyor channel 405 to the crushing box 2111. Simultaneously, the second motor 2112 is started, driving the fixed rod 2113, the crushing blade 2114, and the crushing knife 2115 to rotate, crushing the construction waste. Since the metal in construction waste is usually tightly encased in concrete, crushing exposes the metal, facilitating adsorption by the magnetic roller 208 and reducing impurity interference. Then, the dryer 301 is started, and gas is conveyed through the gas pipe 302 to the gas outlet 303 to dry the crushed waste. Dry processing is used because damp waste easily clumps together, encapsulating metal particles and making it difficult for the magnetic roller 208 to effectively adsorb them. After drying, the metal is more fully exposed, improving the adsorption rate. The crushed waste falls onto the conveyor belt 212, and the first motor 201 is started. The first motor 201 drives the rotating rod 202 and the first pulley 204 to rotate, which in turn drives the belt 205, the second pulley 206, and the rotating shaft 207 to rotate. This causes the rotating roller 203 and the magnetic roller 208 to drive the conveyor belt 212 to rotate, which can transport the falling construction waste to the magnetic roller 208. The magnetic roller 208 adsorbs the ferromagnetic metals in the waste. Non-metallic materials, because they are not magnetic, are not affected by the magnetic force and fall naturally to the discharge port 209. The adsorbed metals reach the bottom of the conveyor belt 212 as the magnetic roller 208 rotates. The metal materials leave the magnetic field and fall into the collection hopper 210, thus achieving the separation of metals and non-metals.

[0045] All technical features in this embodiment can be freely combined according to actual needs.

[0046] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A magnetic metal separation device for construction waste, comprising a housing (1), characterized in that, The box (1) is equipped with a magnetic separation mechanism (2), the magnetic separation mechanism (2) is equipped with a drying component (3), and a conveying component (4) is provided on one side of the top of the box (1). The magnetic separation mechanism (2) includes a first motor (201), a rotating rod (202), a rotating roller (203), a first pulley (204), a belt (205), a second pulley (206), a rotating shaft (207), a magnetic roller (208), a conveyor belt (212), a discharge port (209), a collection hopper (210), and a crushing assembly (211). The first motor (201) is bolted to the outer wall of the housing (1). One end of the rotating rod (202) is fixedly connected to the output end of the first motor (201). The rotating roller (203) is disposed on the side wall of the rotating rod (202). The first pulley (204) The first motor (201) is located at one end of the rotating rod (202), the second pulley (206) is located at the other end of the belt (205), the rotating shaft (207) is located on the side wall of the second pulley (206), the magnetic roller (208) is welded to the outside of the rotating shaft (207), the conveyor belt (212) is located outside the magnetic roller (208) and the rotating roller (203), the discharge port (209) is opened on the side wall of the box (1), and the collection hopper (210) is connected to the bottom of the box (1).

2. A device for magnetically separating metal from construction waste according to claim 1, characterized in that, The crushing assembly (211) includes a crushing box (2111), a second motor (2112), a fixing rod (2113), a crushing blade (2114), a crushing knife (2115), a fixing cylinder (2116), and a hole (2117). The crushing box (2111) is located on the top of the box body (1). The second motor (2112) is bolted to the side wall of the crushing box (2111). The fixing rod (2113) is located at the output end of the second motor (2112). One end of the crushing blade (2114) is welded to the side wall of the fixing rod (2113). The crushing knife (2115) is welded to the other end of the crushing blade (2114). The fixing cylinder (2116) is fixedly connected to the inner wall of the box body (1) near the second motor (2112). The hole (2117) is opened on the outer wall of the fixing cylinder (2116).

3. A device for magnetically separating metal from construction waste according to claim 1, characterized in that, The drying assembly (3) includes a dryer (301), an air supply pipe (302), and an air outlet (303). The dryer (301) is located on the side wall of the crushing box (2111). The air supply pipe (302) is connected to the output end of the dryer (301). The air outlet (303) is located on the side wall of the air supply pipe (302).

4. The construction waste magnetic metal separation device of claim 1, wherein, The conveying assembly (4) includes a conveying motor (401), a connecting rod (402), a spiral blade (403), a door (404), a conveying channel (405), and a feed hopper (406). The conveying motor (401) is located on one side of the crushing box (2111). The connecting rod (402) is located at the output end of the conveying motor (401). The spiral blade (403) is welded to the outer wall of the connecting rod (402). The door (404) is hinged to the side wall of the crushing box (2111) away from the second motor (2112). The conveying channel (405) is fixedly connected to the side wall of the door (404). The feed hopper (406) is located at the top of the conveying channel (405).

5. The construction waste magnetic metal separation device of claim 1, wherein, The bottom of the box (1) is fixedly connected with a limiting strip (5). There are two limiting strips (5). Grooves (6) are provided on the opposite side walls of the two limiting strips (5). The collecting hopper (210) matches the grooves (6).

6. The construction waste magnetic metal separation device of claim 1, wherein, The bottom of the discharge port (209) is provided with a guide block (7), which is triangular, and a recycling trough (8) is provided on one side of the bottom of the box (1).

7. The construction waste magnetic metal separation device of claim 1, wherein, A handle (9) is provided on the side wall of the collection hopper (210), and a support frame (10) is fixedly connected to the side wall at the bottom of the box (1).

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