Primary treatment device for industrial slag

Abstract

The utility model discloses an industrial slag primary treatment device which comprises a crushing treatment unit, a screening treatment unit and a magnetic separation treatment unit which are sequentially stacked from top to bottom, the crushing treatment unit comprises a first box body, and a crushing roller set is installed in the first box body; the screening treatment unit comprises a second box body and a screening disc movably installed in the second box body in a lifting mode, a screen is installed at the bottom of the screening disc, the magnetic separation treatment unit comprises a third box body, a zigzag discharging channel is formed in the third box body, and a magnet is installed at each zigzag node of the discharging channel; according to the device, the crushing treatment unit on the uppermost layer can complete crushing operation of slag, and crushed particle materials are screened according to the particle size in the screening treatment unit in the middle section; materials conforming to the particle size specification continue to fall into the magnetic separation treatment unit on the lowermost layer to complete channel type magnetic separation operation. The device can well meet the production requirements of slag treatment enterprises.

Description

Technical Field

[0001] This utility model relates to the field of environmentally friendly treatment technology of slag, and more specifically, to a primary treatment device for industrial slag. Background Technology

[0002] Industrial slag is a solid waste generated during industrial production. It contains various recyclable components. Directly landfilling industrial slag not only pollutes the environment but also wastes a significant amount of resources. Therefore, environmentally friendly recycling of industrial slag is currently the most common method. Environmental recycling of industrial slag involves extracting its useful components. Some of these components can be used to make cement, bricks, and refractory materials, while others can be used to produce various metal materials. Since industrial slag contains a mixture of components, the initial treatment aims to break large pieces of slag into fine particles and preliminarily screen out iron-containing materials. For industrial slag recycling companies, designing an efficient initial treatment system for industrial slag is an urgent need, hence this project. Utility Model Content

[0003] The purpose of this invention is to address the needs of the prior art and provide a primary treatment device for industrial slag. The uppermost crushing unit of this device can complete the crushing operation of the slag. The crushed granular material is screened by the screening unit in the middle section to determine the particle size. The material that meets the particle size specifications continues to fall to the lowermost magnetic separation unit to complete the channel-type magnetic separation operation. This device can efficiently complete a series of tasks such as crushing, particle screening, and magnetic separation, and can well meet the production needs of slag treatment enterprises.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A primary treatment device for industrial slag includes a crushing unit, a screening unit, and a magnetic separation unit, which are stacked sequentially from top to bottom. The crushing unit includes a first housing containing a crushing roller assembly. The screening unit includes a second housing and a screening disc movably mounted within the second housing. A screen is installed at the bottom of the screening disc, and the granular material formed by the crushing roller assembly enters the screening disc. The magnetic separation unit includes a third housing with a tortuous material discharge channel. Magnets are installed at each tortuous node of the material discharge channel. The granular material screened by the screening disc flows downward through the material discharge channel, and a conveyor belt is installed below the bottom outlet of the material discharge channel.

[0006] Furthermore, a feed inlet is installed on the top of the first box, which introduces slag material into the central section of the crushing roller assembly. A crushed material outlet is connected to the bottom of the first box, and a screening disc is located directly below the crushed material outlet. The opening of the screening disc covers the downward projection surface of the crushed material outlet.

[0007] Furthermore, two elastic supports are symmetrically installed inside the second box, and the screening disc is fixedly installed on the two elastic supports. The screening processing unit also includes a screening power mechanism, which is connected to the two elastic supports in a transmission manner.

[0008] Furthermore, the elastic support includes a rod base and lifting rods. The rod base is fixedly connected to the inner wall of the second box. Two lifting rods are vertically inserted into the rod base and matched with the rod base. An upper crossbar is connected to the top of the two lifting rods. The edge of the screening disc is fixedly connected to the upper crossbar. A lower crossbar is connected to the bottom of the two lifting rods. A spring is fitted on the outside of the lifting rod. One end of the spring is connected to the bottom of the rod base, and the other end is connected to the lower crossbar.

[0009] Furthermore, the screening power mechanism includes a rotating shaft, cams, and a motor. The rotating shaft is rotatably installed in the second housing. The two cams are fixedly connected to the outer wall of the rotating shaft. The two cams are respectively set to correspond to two elastic supports. The outer edge of the cams is in contact with the bottom surface of the lower crossbar. The output end of the motor is connected to the rotating shaft.

[0010] Furthermore, the magnet is provided with a magnetic separation ramp, and the magnet is installed with the magnetic separation ramp facing the material discharge channel. Each magnetic separation ramp is provided with a material guiding ramp above it, and the slope of the material guiding ramp is greater than the slope of the magnetic separation ramp.

[0011] Furthermore, a fine material output funnel is installed at the bottom of the second box, and a discharge pipe is connected to the bottom of the fine material output funnel. The outlet of the discharge pipe is set to face the first material guiding slope above the material drop channel.

[0012] Furthermore, the bottom of the material discharge channel is provided with a buffer discharge slope, which is set to correspond to the lowest magnet in the material discharge channel, and the buffer discharge slope is arc-shaped.

[0013] Furthermore, the magnet is connected to a pull rod, and the other end of the pull rod is connected to a flange plate, which is bolted to the outer wall of the third housing.

[0014] The beneficial effects of this utility model are:

[0015] This invention features a reasonable layout. The uppermost crushing unit can crush the slag, while the crushed particles are screened in the middle section. Particles that meet the size specifications continue to fall to the lowermost magnetic separation unit for channel-type magnetic separation. Magnetic separation can retain particles with a high iron content. The magnetically separated particles are then conveyed to the next process via a conveyor belt. This invention can efficiently complete a series of tasks such as crushing, particle screening, and magnetic separation, and can well meet the production needs of slag processing enterprises. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of a primary treatment device for industrial slag in this embodiment.

[0017] Figure 2 This is a cross-sectional view of the internal structure of a primary treatment device for industrial slag in this embodiment.

[0018] Figure 3 This is a schematic diagram of the elastic support structure in this embodiment;

[0019] Figure 4 This is a schematic diagram of the magnet mounting structure in this embodiment.

[0020] Reference numerals: Crushing unit 1, First box 11, Crushing roller group 12, Feed inlet 13, Crushed material outlet 14, Screening unit 2, Second box 21, Screening disc 22, Screen 221, Elastic support 23, Rod seat 231, Lifting rod 232, Upper crossbar 233, Lower crossbar 234, Spring 235, Screening power mechanism 24, Rotating shaft 241, Cam 242, Motor 243, Fine material output funnel 25, Discharge pipe 251, Magnetic separation unit 3, Third box 31, Material drop channel 32, Feeding ramp 321, Buffer discharge ramp 322, Magnet 33, Magnetic separation ramp 331, Tie rod 332, Flange plate 333, Conveyor belt 4. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-4The illustrated preliminary treatment device for industrial slag includes a crushing unit 1, a screening unit 2, and a magnetic separation unit 3. These units are stacked sequentially from top to bottom. Slag material is fed into the top crushing unit 1 and undergoes crushing, screening, and magnetic separation before being output. The crushing unit 1 includes a first housing 11, within which a crushing roller assembly 12 is installed. The crushing roller assembly 12 is a common crushing device, consisting of two crushing rollers driven by a motor, which forcefully crushes the material entering between the two rollers. In this invention, due to severe slag agglomeration and varying sizes, the first step in the treatment is... Crushing is necessary to break the slag into small particles, which is beneficial for subsequent processing. Screening unit 2 is connected below crushing unit 1. Screening unit 2 includes a second housing 21 and a screening disc 22 that is lifted and movable within the second housing 21. The granular material formed by the crushing roller assembly 12 falls into the screening disc 22, which can screen the crushed material by particle size. A screen 221 is installed at the bottom of the screening disc 22, which is used to screen the material. To increase screening efficiency, the screening disc 22 is designed to move vertically, causing the material to bounce within the screening disc 22, accelerating the passage of material that matches the particle size through the screen 221, while material that does not match the particle size... The material remains in the screening disc 22 and can be removed for further crushing. The slag fragments contain various components, with iron-containing fragments being the easiest to screen out. Therefore, iron-containing fragments should be separated promptly during the initial treatment of industrial slag, which will facilitate subsequent processing steps. This invention sets the separation of iron-containing fragments after the screening unit 2, because the fragments after screening unit 2 are relatively small and suitable for magnetic separation. Magnetic separation utilizes the property that iron can be magnetically attracted to screen the fragments. The magnetic separation operation is completed through the bottom magnetic separation unit 3, which includes a third housing 31 with a tortuous material discharge channel 32. Magnets 33 are installed at each bend of the 32. The granular material screened by the screening disc 22 flows from top to bottom through the material discharge channel 32. In the material discharge channel 32, the crushed material encounters each magnet 33. The design of multiple magnets 33 is to adsorb iron-containing particles in the crushed material to ensure that as few particles as possible are missed. A conveyor belt 4 is installed below the bottom outlet of the material discharge channel 32. The crushed material after magnetic separation falls from the outlet of the material discharge channel 32 onto the conveyor belt 4 and is then sent to the subsequent processing stage by the conveyor belt 4. The design layout of this utility model is reasonable. After the slag passes through this utility model, it can quickly and efficiently complete a series of tasks such as crushing, particle screening, and magnetic separation. This utility model can well meet the production needs of slag treatment enterprises.

[0023] like Figure 2 As shown, the top of the first box 11 is equipped with a feed inlet 13, which is funnel-shaped with varying sizes to facilitate the feeding of slag. The slag material is introduced into the central section of the crushing roller group 12 through the feed inlet 13 (the crushing effect is best in the central section of the crushing roller group 12). The bottom of the first box 11 is connected to a crushed material outlet 14. The screening disc 22 is located directly below the crushed material outlet 14. The crushed material is guided to fall through the crushed material outlet 14. The opening of the screening disc 22 covers the downward projection surface of the crushed material outlet 14 to ensure that the crushed material can enter the screening disc 22 smoothly.

[0024] like Figure 2 and Figure 3 As shown, two elastic supports 23 are symmetrically installed inside the second housing 21. The screening disc 22 is fixedly installed on the two elastic supports 23, giving the screening disc 22 elastic movement capability. The screening processing unit 2 also includes a screening power mechanism 24, which is connected to the two elastic supports 23. The screening power mechanism 24 can drive the two elastic supports 23 to move synchronously, ultimately creating the movement effect of the screening disc 22. The elastic support 23 includes a rod seat 231 and a lifting rod 232. The rod seat 231 is fixedly connected to the inner wall of the second housing 21. Two lifting rods 232 are vertically mounted on rod bases 231, symmetrically arranged. The lifting rods 232 and rod bases 231 are matched and connected. The rod bases 231 guide the movement of the lifting rods 232, ensuring they can only move up and down. An upper crossbar 233 is connected to the top of each lifting rod 232. The edge of the screening disc 22 is fixedly connected to the upper crossbar 233. When the lifting rods 232 move, they drive the screening disc 22 through the upper crossbar 233. A lower crossbar 234 is connected to the bottom of each lifting rod 232. A spring 235 is fitted on the side. One end of the spring 235 is connected to the bottom of the rod seat 231, and the other end is connected to the lower crossbar 234. The screening power mechanism 24 includes a rotating shaft 241, cams 242, and a motor 243. The rotating shaft 241 is rotatably mounted inside the second housing 21. Two cams 242 are fixedly connected to the outer wall of the rotating shaft 241. The two cams 242 are respectively set to correspond to two elastic supports 23. The output end of the motor 243 is connected to the rotating shaft 241. When the motor 243 is started, it can drive the rotating shaft 241 to rotate. The rotation of the rotating shaft 241 can form two cams. The synchronous rotation of cam 242, under the force of spring 235, keeps the outer edge of cam 242 in contact with the bottom surface of lower crossbar 234. When the cam 242 protrusion faces upward, lower crossbar 234 is pushed upward. At this time, spring 235 is compressed, and screening disc 22 moves upward. After passing the protrusion, under the restoring force of spring 235, lower crossbar 234 descends, and screening disc 22 also descends. As cam 242 rotates continuously, screening disc 22 can continuously rise and fall, so that the broken material in screening disc 22 can continuously jump. The jumping broken material is easier to screen.

[0025] like Figure 2 As shown, the magnet 33 is equipped with a magnetic separation ramp 331. The magnet 33 is installed with the magnetic separation ramp 331 facing the material feeding channel 32. The magnet 33 can form part of the channel wall of the material feeding channel 32. The magnet 33 is positioned at each turning point to ensure that the falling fragments can pass through the magnetic separation ramp 331. Above each magnetic separation ramp 331, there is a guide ramp 321. The guide ramp 321 guides the fragments downward between the magnetic separation ramps 331. The slope of the guide ramp 321 is greater than that of the magnetic separation ramp 331, and the guide ramp 321 is steeper to guide the material downward quickly. The magnetic separation ramp 331 is gentler than the guide ramp 321, and the speed of the fragments slows down when passing through the magnetic separation ramp 331. To ensure that iron-containing fragments can be adsorbed, a fine material output funnel 25 is installed at the bottom of the second box 21. The bottom of the fine material output funnel 25 is connected to a discharge pipe 251. The outlet of the discharge pipe 251 is set directly above the first feeding ramp 321 above the material drop channel 32. The purpose of the fine material output funnel 25 and the discharge pipe 251 is to guide the screened fragments to the top of the material drop channel 32 and let them fall smoothly. As the falling fragments reach the first feeding ramp 321, they can fall down the material drop channel 32 and continuously pass through the magnetic separation of multiple magnets 33. During the magnetic separation process, the first magnet 33 will definitely have the heaviest adsorption load. The purpose of designing multiple magnets 33 is to minimize the leakage.

[0026] like Figure 2 As shown, the bottom of the material discharge channel 32 is provided with a buffer discharge slope 322. The buffer discharge slope 322 is set to correspond to the lowest magnet 33 in the material discharge channel 32. The lowest magnet 33 is also the last magnet 33. After the broken material passes through the last magnet 33, it impacts the buffer discharge slope 322 and falls smoothly onto the conveyor belt 4. The present invention designs the buffer discharge slope 322 to be arc-shaped, which can help to significantly reduce the falling speed of the broken material and make it fall smoothly onto the conveyor belt 4.

[0027] As the magnetic separation operation progresses, more and more iron-containing debris will be adsorbed onto magnet 33. This requires the removal and collection of the iron-containing debris; otherwise, it will affect the magnetic separation operation. Therefore, if... Figure 4 As shown, the present invention designs the magnet 33 as a detachable structure. The magnet 33 is connected to a pull rod 332, and the other end of the pull rod 332 is connected to a flange plate 333. The flange plate 333 is bolted to the outer wall of the third box 31. After the flange plate 333 is installed and fixed, the magnetic separation slope 331 of the magnet 33 forms part of the channel wall of the material discharge channel 32. When the magnet 33 needs to be removed, it is only necessary to remove the bolts of the flange plate 333 and pull the magnet 33 out of the third box 31. The operation is very convenient. The iron-containing fragments adsorbed on the magnetic separation slope 331 are removed and stored separately, which can further separate the metal materials.

[0028] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An apparatus for the preliminary treatment of industrial slag, characterized in that, The application relates to a slag processing device, which comprises a crushing processing unit (1), a screening processing unit (2) and a magnetic separation processing unit (3), wherein the crushing processing unit (1), the screening processing unit (2) and the magnetic separation processing unit (3) are sequentially stacked from top to bottom, the crushing processing unit (1) comprises a first box body (11), a crushing roller group (12) is arranged in the first box body (11), the screening processing unit (2) comprises a second box body (21) and a screening disc (22) which is movably arranged in the second box body (21), a screen (221) is arranged at the bottom of the screening disc (22), the crushing roller group (12) forms particle fragments which enter the screening disc (22), the magnetic separation processing unit (3) comprises a third box body (31), a zigzag material falling channel (32) is formed in the third box body (31), a magnet (33) is arranged at each zigzag node of the material falling channel (32), the particle material screened by the screening disc (22) passes through the material falling channel (32) from top to bottom, and a conveying belt (4) is arranged below the bottom outlet of the material falling channel (32).

2. A device for primary treatment of industrial slag according to claim 1, characterized in that, A feeding port (13) is arranged at the top of the first box body (11), the feeding port (13) introduces slag material into the central segment of the crushing roller group (12), a fragment outlet (14) is connected to the bottom of the first box body (11), the screening disc (22) is arranged directly below the fragment outlet (14), and the disc opening of the screening disc (22) covers the downward projection surface of the fragment outlet (14).

3. A device for primary treatment of industrial slag according to claim 1, characterized in that, Two elastic supports (23) are symmetrically arranged in the second box body (21), the screening disc (22) is fixedly arranged on the two elastic supports (23), and the screening processing unit (2) further comprises a screening power mechanism (24) which is in transmission connection with the two elastic supports (23).

4. A device for initial treatment of industrial slag according to claim 3, characterized in that, The elastic support (23) comprises a rod base (231) and a lifting rod (232), the rod base (231) is fixedly connected to the inner wall of the second box body (21), the two lifting rods (232) are vertically arranged on the rod base (231), the lifting rod (232) is in matched connection with the rod base (231), the top of the two lifting rods (232) is connected with an upper cross rod (233), the edge of the screening disc (22) is fixedly connected to the upper cross rod (233), the bottom of the two lifting rods (232) is connected with a lower cross rod (234), a spring (235) is sleeved on the outer side of the lifting rod (232), one end of the spring (235) is connected to the bottom of the rod base (231), and the other end of the spring (235) is connected to the lower cross rod (234).

5. A device for the preliminary treatment of industrial slags according to claim 4, characterized in that, The screening power mechanism (24) comprises a rotating shaft (241), a cam (242) and a motor (243), the rotating shaft (241) is rotatably arranged in the second box body (21), the two cams (242) are fixedly connected to the outer wall of the rotating shaft (241), the two cams (242) are respectively arranged corresponding to the two elastic supports (23), the outer edge of the cam (242) is in contact with the bottom surface of the lower cross rod (234), and the output end of the motor (243) is connected with the rotating shaft (241).

6. A device for primary treatment of industrial slag according to claim 1, characterized in that, The magnet (33) is provided with a magnetic separation slope (331), the magnet (33) is installed with the magnetic separation slope (331) towards the blanking channel (32), each magnetic separation slope (331) is provided with a material guide slope (321) above, the slope of the material guide slope (321) is greater than the slope of the magnetic separation slope (331).

7. A device for the preliminary treatment of industrial slags according to claim 6, characterized in that, The second box body (21) is provided with a fine material output hopper (25) at the bottom, the fine material output hopper (25) is connected with a discharge pipe (251) at the bottom, the outlet of the discharge pipe (251) is arranged opposite to the first material guide slope (321) above the blanking channel (32).

8. A device for primary treatment of industrial slag according to claim 1, characterized in that, The blanking channel (32) is provided with a buffer discharge slope (322) at the bottom, the buffer discharge slope (322) is arranged corresponding to the lowermost magnet (33) in the blanking channel (32), and the buffer discharge slope (322) is arc-shaped.

9. A device for primary treatment of industrial slag according to claim 1, characterized in that, The magnet (33) is connected with a pull rod (332), the other end of the pull rod (332) is connected with a flange plate (333), and the flange plate (333) is bolted to the outer wall of the third box body (31).

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