Front screening mechanism for crushing metallurgical waste residues

Abstract

The utility model relates to the field of screening mechanisms, in particular to a front screening mechanism for crushing metallurgical waste residues. According to an existing screening mechanism, a screen drum is generally adopted for screening and separating metallurgical waste residues, due to the fact that metal types in the metallurgical waste residues are many, the screen drum is difficult to effectively separate different metals in the metallurgical waste residues, the metal recovery rate is reduced, meanwhile, the metals cannot be effectively screened, and longer time and multiple working procedures are needed for separation; and the production efficiency is influenced. The utility model provides a front screening mechanism for crushing metallurgical waste residues. The front screening mechanism comprises a working box, a screening assembly, a collecting assembly and a supporting assembly. Metallurgical waste residues are classified through the combination of the main pipeline and the auxiliary pipeline, multi-stage screening is achieved, it is ensured that the waste residues of different particle size grades are effectively separated, blockage of the waste residues is prevented, a driver is used for being connected with an electromagnetic rod to conduct adsorption and secondary separation on part of metal, screening separation of different waste residues is achieved, and the recovery rate of the metal is increased.

Description

Technical Field

[0001] The utility model relates to the field of screening mechanisms, in particular to a pre-screening mechanism for crushing metallurgical waste slag. Background Art

[0002] Metallurgical slag crushing is a method of treating waste slag discharged from the metallurgical industry. Its purpose is to crush the waste slag (such as blast furnace slag) into smaller and more uniform particles for subsequent recycling and treatment. Metallurgical waste slag usually contains valuable non-ferrous metals, precious metals and other recyclable materials. Crushing can improve the recyclability of these valuable materials. The pre-screening mechanism of metallurgical waste slag crushing is a device used for metallurgical waste slag treatment. It is located before the crusher and is used for preliminary screening and classification of waste slag.

[0003] At present, the patent number is CN202311371372.0, an efficient automatic screening device for metallurgical waste slag, including an operating body, the operating body includes a base, the base is rotatably connected to a screen drum through a frame arranged on the top thereof, the screen drum is provided with a screening part that can be used for external slag screening, a driving part, the driving part includes a driven gear, the screen drum is rotatably connected to the inside of the frame through an axle rod arranged on the outer surface of its circumference, and the present invention relates to the field of waste slag screening technology. This efficient automatic screening device for metallurgical waste slag can effectively solve the problem in the prior art that the processing of slag aggregates needs to be screened using a drum screen, small particles can directly replace crushed stone aggregates, and large pieces of slag aggregates need to be screened and then crushed by a jaw crusher. During the screening process of the above-mentioned drum screen, due to the large size difference of the slag aggregates, the drum screen is often blocked. In the existing screening mechanism, a screen cylinder is usually used to screen and separate metallurgical waste slag during the screening process. Since there are many types of metals in the metallurgical waste slag, it is difficult for the screen cylinder to effectively separate different metals in the metallurgical waste slag, resulting in a reduced metal recovery rate. At the same time, the metal cannot be effectively screened, and a longer time and multiple processes are required for separation, which affects the production efficiency. Therefore, we propose a pre-screening mechanism for metallurgical waste slag crushing to solve the above-mentioned problems. Utility Model Content

[0004] In order to overcome the existing screening mechanism, a screen cylinder is usually used to screen and separate metallurgical waste slag. Due to the large number of metal types in metallurgical waste slag, it is difficult for the screen cylinder to effectively separate different metals in the metallurgical waste slag, resulting in a lower metal recovery rate. At the same time, the metal cannot be effectively screened, and it takes a longer time and multiple processes to separate, which affects the production efficiency.

[0005] The technical solution of the utility model is: a pre-screening mechanism for crushing metallurgical waste slag, comprising a working box, a screening component, a collecting component and a supporting component; a screening component for preliminarily screening and separating the metallurgical waste slag so as to optimize the subsequent crushing process is installed inside the working box, a collecting component for classifying and collecting waste slag of different particle size levels after the metallurgical waste slag is screened is installed at the lower end of the working box, and a supporting component for ensuring the stability and normal operation of the screening mechanism is installed below the working box.

[0006] Preferably, the metallurgical waste slag is classified by adopting the main pipeline in combination with the auxiliary pipeline to realize multi-stage screening, ensure that the waste slag of different particle sizes is effectively separated, prevent the blockage of the waste slag, use the driver to connect the electromagnetic rod to adsorb and separate some metals for secondary separation, effectively separate different metal particles in the waste slag, realize the screening and separation of different waste slags, improve the metal recovery rate, use the vibration motor to drive the working box in combination with the spring to perform shaking screening, speed up the speed of the waste slag passing through the screen, adapt to metallurgical waste slag of different particle sizes and characteristics, and the buffering effect of the spring can reduce the impact force on the screen, prolong the service life of the screen, and combine the cover plate with the limit bolt and the working box to make the screen more stable. The box is used to fix the screen to ensure that the screening mechanism remains stable during operation and prevents component displacement due to vibration or material impact. Secondly, the connecting plate is used to connect the fixed screen to perform preliminary screening of the metallurgical waste slag. The fixed screen can reduce the direct impact of the waste slag on the equipment components, reduce equipment wear and extend its service life. At the same time, the connecting plate can ensure that the screen maintains a good shape and position during the screening process, thereby optimizing the screening effect and improving the screening efficiency. The support frame combined with the reinforcement rod is used to support the equipment to provide sufficient supporting force, ensure the stable operation of the entire screening mechanism, reduce equipment displacement due to vibration or material impact, and improve the equipment's pressure and impact resistance.

[0007] Preferably, the screening assembly includes a cover plate, a positioning block, a limit bolt, a feeding funnel, a fixed block, a spring, a docking block, a connecting plate, a fixing bolt, a screen, a vibration motor, a support block, an auxiliary pipeline and a main pipeline. A connecting plate is provided inside the working box, and two groups of fixing bolts are symmetrically provided at the outer end of the connecting plate. A screen is provided between the connecting plate and the working box. The metallurgical waste slag is initially screened by connecting the fixed screen with the connecting plate. The fixed screen can reduce the direct impact of the waste slag on the equipment components, reduce the wear of the equipment, and extend the service life. At the same time, the connecting plate can ensure that the screen maintains a good shape and position during the screening process, thereby optimizing the screening effect and improving the screening efficiency.

[0008] Preferably, a main pipeline and an auxiliary pipeline are provided at the lower edge of the working box, an inclined plate is provided between the main pipeline, the auxiliary pipeline and the working box, and the screen is fitted and fixed to the inclined plate at the upper end of the main pipeline. The metallurgical waste slag is classified by using the main pipeline in combination with the auxiliary pipeline to achieve multi-stage screening, ensuring that waste slag of different particle size levels are effectively separated to prevent clogging of the waste slag.

[0009] Preferably, a cover plate is provided at the upper end of the working box, a feeding funnel is provided at the upper end of the cover plate, a positioning block is provided at the outer end of the cover plate, a limiting bolt is provided inside the positioning block, and the cover plate is threadedly fixed to the working box by the limiting bolt. By using the cover plate in combination with the limiting bolt to fix the working box, it is ensured that the screening mechanism maintains a stable state during operation, prevents component displacement due to vibration or material impact, and improves overall stability.

[0010] Preferably, a fixed block is symmetrically provided at the outer end of the working box, a spring is provided at the lower end of the fixed block, a docking block is provided at the end of the spring away from the fixed block, a damper is provided on the inner side of the spring, a support block is provided at the lower end of the working box, and a vibration motor is provided at the rear end of the support block. The working box is driven by a vibration motor and the spring is combined for shaking screening, which speeds up the speed at which waste slag passes through the screen and adapts to metallurgical waste slag of different particle sizes and characteristics. At the same time, the buffering effect of the spring can reduce the impact force on the screen and extend the service life of the screen.

[0011] Preferably, the collecting component includes a collecting box, a partition, a driver, an electromagnetic rod and a filter screen. The rear ends of the main pipeline and the auxiliary pipeline are provided with limit blocks. The collecting box is fixedly connected to the main pipeline and the auxiliary pipeline through the limit blocks. A partition is provided at the inner center of the collecting box. Two groups of drivers are provided at the outer end of the collecting box. One end of the driver is located in the collecting box, and multiple groups of electromagnetic rods are provided inside. A filter screen is provided at the lower end of the partition. A accommodating bin is provided inside the collecting box at the lower end of the filter screen. The driver is connected to the electromagnetic rod to adsorb and separate some metals for secondary separation, so as to effectively separate different metal particles from the waste slag, realize the screening and separation of different waste slags, and improve the metal recovery rate.

[0012] Preferably, the support assembly includes a support frame, load-bearing rods and reinforcement rods. The support frame is located at the lower end of the working box. The spring is fixedly connected to the support frame through a docking block. Two groups of load-bearing rods are provided at the upper end of the support frame. The load-bearing rods are movably connected to the working box. Multiple groups of reinforcement rods are provided inside the support frame. By using the support frame combined with the reinforcement rods to support the equipment, sufficient supporting force is provided to ensure the stable operation of the entire screening mechanism, reduce equipment displacement caused by vibration or material impact, and improve the equipment's pressure and impact resistance.

[0013] Beneficial effects of the utility model:

[0014] 1. Compared with the traditional screening mechanism, the main pipeline combined with the auxiliary pipeline is used to classify the metallurgical waste slag to achieve multi-level screening, ensure that the waste slag of different particle sizes is effectively separated, and prevent the blockage of the waste slag. The driver is connected to the electromagnetic rod to adsorb and separate some metals for secondary separation, effectively separating different metal particles from the waste slag, realizing the screening and separation of different waste slags, and improving the metal recovery rate. The vibration motor is used to drive the working box combined with the spring for shaking screening, which speeds up the speed of the waste slag passing through the screen and adapts to metallurgical waste slag of different particle sizes and characteristics. At the same time, the buffering effect of the spring can reduce the impact force on the screen and extend the service life of the screen.

[0015] 2. The cover plate is fixed to the working box with limit bolts to ensure that the screening mechanism remains stable during operation and prevent components from shifting due to vibration or material impact. Secondly, the connecting plate connects the fixed screen to perform preliminary screening of metallurgical waste slag. The fixed screen can reduce the direct impact of waste slag on equipment components, reduce equipment wear and extend service life. At the same time, the connecting plate can ensure that the screen maintains a good shape and position during the screening process, thereby optimizing the screening effect and improving the screening efficiency. The support frame is combined with the reinforcement rod to support the equipment, providing sufficient support force to ensure the stable operation of the entire screening mechanism, reduce equipment displacement due to vibration or material impact, and improve the equipment's pressure and impact resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the screening component of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the working box of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the collection component of the utility model.

[0020] In the figure: 1. working box; 2. screening component; 201. cover plate; 202. positioning block; 203. limiting bolt; 204. feeding funnel; 205. fixing block; 206. spring; 207. docking block; 208. connecting plate; 209. fixing bolt; 210. screen; 211. vibration motor; 212. support block; 213. auxiliary pipeline; 214. main pipeline; 3. collecting component; 301. collecting box; 302. partition; 303. driver; 304. electromagnetic rod; 305. filter; 4. supporting component; 401. supporting frame; 402. load-bearing rod; 403. reinforcement rod. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] See also Figure 1-4 The utility model provides an embodiment: a pre-screening mechanism for crushing metallurgical waste slag, comprising a working box 1, a screening component 2, a collecting component 3 and a supporting component 4; the working box 1 is provided with a screening component 2 for preliminary screening and separation of metallurgical waste slag to optimize the subsequent crushing process, the lower end of the working box 1 is provided with a collecting component 3 for classifying and collecting waste slag of different particle sizes after the metallurgical waste slag is screened, and a supporting component 4 for ensuring the stability and normal operation of the screening mechanism is provided below the working box 1.

[0023] See also Figure 1-2 In this embodiment, the screening component 2 includes a cover plate 201, a positioning block 202, a limiting bolt 203, a feeding funnel 204, a fixing block 205, a spring 206, a docking block 207, a connecting plate 208, a fixing bolt 209, a screen 210, a vibration motor 211, a support block 212, an auxiliary pipeline 213 and a main pipeline 214. A connecting plate 208 is provided inside the working box 1, and two groups of fixing bolts 209 are symmetrically provided at the outer end of the connecting plate 208. A screen 210 is provided between the connecting plate 208 and the working box 1. The metallurgical waste slag is preliminarily screened by connecting the fixing screen 210 with the connecting plate 208. 0 can reduce the direct impact of waste slag on equipment components, reduce equipment wear and tear, and extend service life. At the same time, the connecting plate 208 can ensure that the screen 210 maintains a good shape and position during the screening process, thereby optimizing the screening effect and improving the screening efficiency. A main pipeline 214 and an auxiliary pipeline 213 are provided at the lower edge of the working box 1. An inclined plate is provided between the main pipeline 214 and the auxiliary pipeline 213 and the working box 1. The screen 210 is fitted and fixed to the inclined plate at the upper end of the main pipeline 214. The metallurgical waste slag is classified by using the main pipeline 214 in combination with the auxiliary pipeline 213 to achieve multi-stage screening, ensure that waste slag of different particle sizes is effectively separated, and prevent clogging of waste slag.

[0024] See also Figure 1-3In this embodiment, a cover plate 201 is provided at the upper end of the working box 1, a feeding funnel 204 is provided at the upper end of the cover plate 201, a positioning block 202 is provided at the outer end of the cover plate 201, a limiting bolt 203 is provided inside the positioning block 202, the cover plate 201 is threadedly fixed to the working box 1 through the limiting bolt 203, and the cover plate 201 is fixed to the working box 1 by combining the limiting bolt 203 with the working box 1 to ensure that the screening mechanism maintains a stable state during operation, prevents the displacement of components due to vibration or material impact, and improves the overall stability. The outer end of the working box 1 is symmetrically provided with a fixing block 205, A spring 206 is provided at the lower end of the fixed block 205, a docking block 207 is provided at the end of the spring 206 away from the fixed block 205, a damper is provided on the inner side of the spring 206, a support block 212 is provided at the lower end of the working box 1, and a vibration motor 211 is provided at the rear end of the support block 212. The vibration motor 211 drives the working box 1 to perform shaking screening in combination with the spring 206, thereby accelerating the speed at which the waste slag passes through the screen 210 to adapt to metallurgical waste slag of different particle sizes and characteristics. At the same time, the buffering effect of the spring 206 can reduce the impact force on the screen 210 and extend the service life of the screen 210.

[0025] See also Figure 2-4 In this embodiment, the collecting assembly 3 includes a collecting box 301, a partition 302, a driver 303, an electromagnetic rod 304 and a filter 305. The rear ends of the main pipe 214 and the auxiliary pipe 213 are provided with a limit block. The collecting box 301 is fixedly connected to the main pipe 214 and the auxiliary pipe 213 through the limit block. The inner center of the collecting box 301 is provided with a partition 302. The outer end of the collecting box 301 is provided with two groups of drivers 303. One end of the driver 303 is located in the collecting box 301. The inner part is provided with multiple groups of electromagnetic rods 304. The lower end of the partition 302 is provided with a filter 305. The inner part of the collecting box 301 is provided with a storage bin at the lower end of the filter 305. The driver 303 is connected to the electromagnetic rod 304 to adsorb some metals for a second time. Separation, effectively separate different metal particles in the waste slag, realize the screening and separation of different waste slags, and improve the metal recovery rate. The support assembly 4 includes a support frame 401, a load-bearing rod 402 and a reinforcement rod 403. The support frame 401 is located at the lower end of the working box 1. The spring 206 is fixedly connected to the support frame 401 through the docking block 207. Two groups of load-bearing rods 402 are provided at the upper end of the support frame 401. The load-bearing rods 402 are movably connected to the working box 1. A plurality of groups of reinforcement rods 403 are provided inside the support frame 401. By using the support frame 401 combined with the reinforcement rods 403 to support the equipment, sufficient supporting force is provided to ensure the stable operation of the entire screening mechanism, reduce the displacement of the equipment caused by vibration or material impact, and improve the pressure resistance and impact resistance of the equipment.

[0026] When working, first select a suitable screen 210 and install it into the working box 1 using the connecting plate 208, and use multiple sets of fixing bolts 209 to achieve the limit fixation of the two. Then, move the cover plate 201 to the upper end of the working box 1, and use the limit bolts 203 to connect the positioning block 202 and the working box 1 for threaded connection to ensure that the screening mechanism remains stable during operation to prevent the displacement of components due to vibration or material impact. After the equipment is installed, add the metallurgical waste slag to the working box 1 with the feeding funnel 204, and start the vibration motor at the same time. The machine 211 is connected to the support block 212 to vibrate the working box 1. The metallurgical waste slag is preliminarily screened along the upper end of the screen 210 through vibration. When some fine waste slag is exposed to the inside of the working box 1 through the screen 210, the working box 1 is connected with the spring 206 for shaking screening, which speeds up the speed of the waste slag passing through the screen 210 and adapts to metallurgical waste slag of different particle sizes and characteristics. At the same time, the buffering effect of the spring 206 can reduce the impact force on the screen 210, so that the fine waste slag falls from the inclined plate through the main pipeline 214 into the collection box 301 for collection.

[0027] After the fine waste slag falls into the collection from the main pipe 214, some large waste slag flows into the working box 1 from the auxiliary pipe 213 adjacent to the main pipe 214. The metallurgical waste slag is classified through the main pipe 214 combined with the auxiliary pipe 213 to achieve multi-stage screening, ensuring that waste slag of different particle sizes are effectively separated to prevent clogging of the waste slag. After the waste slag is separated and screened through the main pipe 214 and the auxiliary pipe 213, the driver 303 is used to connect the electromagnetic rod 304 to form an electromagnetic effect, and some metals are adsorbed for secondary separation, effectively separating different metal particles from the waste slag to achieve screening and separation of different waste slags. Some waste slag that is not easily adsorbed by the magnet is screened by the filter net 305 and falls into the collection box 301 for secondary storage. The support frame 401 is combined with the reinforcement rod 403 to support the equipment, providing sufficient support force to ensure the stable operation of the entire screening mechanism.

[0028] Through the above steps, the metallurgical waste slag is classified by using the main pipeline 214 in combination with the auxiliary pipeline 213 to achieve multi-stage screening, ensure that the waste slag of different particle sizes is effectively separated, and prevent the slag from being blocked. The driver 303 is used to connect the electromagnetic rod 304 to adsorb and separate some metals for secondary separation, effectively separate different metal particles from the waste slag, and achieve screening and separation of different waste slags, thereby improving the metal recovery rate. The vibration motor 211 is used to drive the working box 1 in combination with the spring 206 for shaking screening, thereby accelerating the speed at which the waste slag passes through the screen 210, and adapting to metallurgical waste slag of different particle sizes and characteristics. At the same time, the buffering effect of the spring 206 can reduce the impact force on the screen 210, and extend the service life of the screen 210. The bolts 203 are fixed to the working box 1 to ensure that the screening mechanism remains in a stable state during operation and prevent components from shifting due to vibration or material impact. Secondly, the connecting plate 208 connects the fixed screen 210 to perform preliminary screening of metallurgical waste slag. The fixed screen 210 can reduce the direct impact of the waste slag on equipment components, reduce equipment wear and extend the service life. At the same time, the connecting plate 208 can ensure that the screen 210 maintains a good shape and position during the screening process, thereby optimizing the screening effect and improving the screening efficiency. The support frame 401 is combined with the reinforcement rod 403 to support the equipment, providing sufficient supporting force to ensure the stable operation of the entire screening mechanism, reduce equipment displacement due to vibration or material impact, and improve the equipment's pressure resistance and impact resistance.

[0029] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A pre-screening mechanism for crushing metallurgical waste slag, comprising a working box; characterized in that: It also includes a screening component, a collecting component and a supporting component; a screening component for preliminary screening and separation of metallurgical waste slag to optimize the subsequent crushing process is installed inside the working box, a collecting component for classifying and collecting waste slag of different particle sizes after the metallurgical waste slag is screened is installed at the lower end of the working box, and a supporting component for ensuring the stability and normal operation of the screening mechanism is installed below the working box.

2. A pre-screening mechanism for metallurgical waste slag crushing according to claim 1, characterized in that: The screening assembly includes a cover plate, a positioning block, a limit bolt, a feeding funnel, a fixing block, a spring, a docking block, a connecting plate, fixing bolts, a screen, a vibration motor, a support block, an auxiliary pipeline and a main pipeline. A connecting plate is provided inside the working box, two groups of fixing bolts are symmetrically provided at the outer end of the connecting plate, and a screen is provided between the connecting plate and the working box.

3. A pre-screening mechanism for metallurgical waste slag crushing according to claim 2, characterized in that: A main pipeline and an auxiliary pipeline are arranged at the lower edge of the working box, an inclined plate is arranged between the main pipeline, the auxiliary pipeline and the working box, and the screen is fitted and fixed to the inclined plate at the upper end of the main pipeline.

4. A pre-screening mechanism for metallurgical waste slag crushing according to claim 2, characterized in that: A cover plate is arranged at the upper end of the working box, a feeding funnel is arranged at the upper end of the cover plate, a positioning block is arranged at the outer end of the cover plate, a limiting bolt is arranged inside the positioning block, and the cover plate is threadedly fixed to the working box through the limiting bolt.

5. The pre-screening mechanism for metallurgical waste slag crushing according to claim 2, characterized in that: The outer end of the working box is symmetrically provided with a fixed block, the lower end of the fixed block is provided with a spring, the end of the spring away from the fixed block is provided with a docking block, the inner side of the spring is provided with a damper, the lower end of the working box is provided with a support block, and the rear end of the support block is provided with a vibration motor.

6. A pre-screening mechanism for metallurgical waste slag crushing according to claim 3, characterized in that: The collecting assembly includes a collecting box, a partition, a driver, an electromagnetic rod and a filter. Limit blocks are provided at the rear ends of the main pipeline and the auxiliary pipeline. The collecting box is fixedly connected to the main pipeline and the auxiliary pipeline through the limit blocks. A partition is provided at the inner center of the collecting box. Two groups of drivers are provided at the outer end of the collecting box. One end of the driver is located inside the collecting box and multiple groups of electromagnetic rods are provided. A filter is provided at the lower end of the partition. A accommodating bin is opened inside the collecting box at the lower end of the filter.

7. A pre-screening mechanism for metallurgical waste slag crushing according to claim 4, characterized in that: The support assembly includes a support frame, a load-bearing rod and a reinforcement rod. The support frame is located at the lower end of the working box. The spring is fixedly connected to the support frame through a docking block. Two groups of load-bearing rods are provided at the upper end of the support frame. The load-bearing rods are movably connected to the working box. Multiple groups of reinforcement rods are provided inside the support frame.

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