Abrasion-resistant castable grading magnetic separation device

Abstract

The utility model discloses a kind of wear-resistant castable grading magnetic separation equipment, including primary magnetic separation mechanism and grading magnetic separation mechanism;Primary magnetic separation mechanism includes primary magnetic separation support seat, two parallel arrangements and are hollow primary magnetic separation accommodating shell in the top of primary magnetic separation support seat, the inside of the side of the mutual approach of two primary magnetic separation accommodating shell is fixed with multiple primary magnetic separation electromagnet;Primary magnetic separation support seat top is equipped with multiple primary magnetic separation conveying pipe;Grading magnetic separation mechanism includes grading magnetic separation support seat, and the top of grading magnetic separation support seat is fixed with horizontally arranged grading magnetic separation conveying belt;The top of grading magnetic separation support seat is rotatably connected with multiple grading magnetic separation roller shafts above grading magnetic separation conveying belt;The magnetic separation equipment can quickly and effectively adsorb and separate magnetic impurities in wear-resistant castable, compared with traditional magnetic separation equipment, magnetic separation efficiency is greatly improved, greatly shorten the magnetic separation time, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of wear-resistant castable technology, specifically to a wear-resistant castable grading magnetic separation device. Background Technology

[0002] Wear-resistant castables generally refer to inorganic non-metallic materials with a refractoriness of 1580℃ or higher. They include natural ores and various products manufactured according to specific purposes and requirements through specific processes. They possess certain temperature and mechanical properties and good volume stability, making them essential materials for various high-temperature equipment. Refractory materials are used in various sectors of the national economy, including steel, non-ferrous metals, glass, cement, ceramics, petrochemicals, machinery, boilers, light industry, power, and military industries. They are indispensable basic materials for ensuring the production, operation, and technological development of these industries, playing an irreplaceable and vital role in the development of high-temperature industrial production.

[0003] However, wear-resistant castable raw materials and castable reclaimed materials, especially reclaimed materials, contain a large amount of ferromagnetic impurities. These ferromagnetic impurities need to be screened out, otherwise they will directly affect the various properties of refractory brick products. Some existing screening devices still have problems with incomplete screening and low screening efficiency, which need to be further improved and optimized. Utility Model Content

[0004] The purpose of this invention is to provide a magnetic separation device for classifying wear-resistant castables, which can more thoroughly separate and remove magnetic impurities in wear-resistant castables.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A wear-resistant castable grading magnetic separation device includes a primary magnetic separation mechanism and a grading magnetic separation mechanism;

[0007] The primary magnetic separation mechanism includes a primary magnetic separation support base. Two parallel and hollow primary magnetic separation housings are fixed on the top of the primary magnetic separation support base. Multiple primary magnetic separation electromagnets are fixed inside the two primary magnetic separation housings on the side that is close to each other.

[0008] A primary magnetic separation support plate is fixed on the top of the primary magnetic separation support base above the primary magnetic separation housing. Multiple vertically extending primary magnetic separation conveying pipes are fixed on the primary magnetic separation support plate.

[0009] The grading magnetic separation mechanism includes a grading magnetic separation support base, a horizontally arranged grading magnetic separation conveyor belt fixed on the top of the grading magnetic separation support base, and a grading magnetic separation input inclined plate fixed on the top of the grading magnetic separation support base at the input end of the grading magnetic separation conveyor belt.

[0010] The top of the grading magnetic separation support is located above the grading magnetic separation conveyor belt and is rotatably connected to multiple grading magnetic separation roller shafts. The inside of the grading magnetic separation roller shafts is a hollow structure, and multiple grading magnetic permanent magnets are fixed on the inner side wall of the grading magnetic separation roller shafts.

[0011] Each grading magnetic separation roller shaft has an upward-facing grading impurity storage tank on its side. A grading magnetic separation impurity scraper is fixed to the side of the grading magnetic separation roller shaft near the grading magnetic separation roller shaft. The upper side of the grading magnetic separation impurity scraper is in a pressing contact with the side of the grading magnetic separation roller shaft.

[0012] A horizontally arranged auxiliary support plate is provided on the lower side of the upper section of the grading magnetic separation conveyor belt.

[0013] Preferably, a plurality of primary magnetic separation storage boxes are fixed on the top of the primary magnetic separation support plate, and a primary magnetic separation conveyor is provided in the primary magnetic separation storage box. The output ends of the plurality of primary magnetic separation conveyors are connected to the upper end of each primary magnetic separation conveyor pipe in a corresponding manner.

[0014] A primary magnetic separation material discharge channel is formed vertically between the two primary magnetic separation receiving shells on their sides that are close to each other.

[0015] The primary magnetic separation support base has an upward-opening primary magnetic separation discharge box located below the primary magnetic separation discharge channel. The primary magnetic separation support base also has an upward-opening primary impurity storage box located below the two primary magnetic separation receiving shells. A primary impurity guide plate is fixed on the top of the primary impurity storage box.

[0016] Explanation: First, the wear-resistant castable is screened rapidly with a large flow rate using a primary magnetic separation mechanism, which helps to reduce the workload of subsequent grading magnetic separation. Furthermore, the components of the wear-resistant castable after primary magnetic separation are more uniform, which is conducive to spreading it on the grading magnetic separation conveyor belt to form a thin layer of wear-resistant castable for further magnetic separation.

[0017] Preferably, the higher end of the graded magnetic separation input inclined plate is provided with multiple graded magnetic separation input tubes, and the graded magnetic separation input tubes are connected to the inside of the primary magnetic separation discharge box through the graded magnetic separation conveyor;

[0018] Multiple inclined plate feeding vibration modules are fixed at the bottom of the graded magnetic separation input inclined plate.

[0019] Explanation: Under the vibration of multiple inclined plate feeding vibration modules, the wear-resistant castable gradually slides down the upper side of the graded magnetic separator input inclined plate and is discharged from the lower end of the graded magnetic separator input inclined plate, and is evenly dispersed on the graded magnetic separator conveyor belt.

[0020] Preferably, a material-discharging flat scraper is provided above the grading magnetic separation conveyor belt and between the grading magnetic separation input inclined plate and the grading magnetic separation roller shaft. The plane of the material-discharging flat scraper is arranged perpendicular to the conveying direction of the grading magnetic separation conveyor belt, and the material-discharging flat scraper is fixedly connected to the top of the grading magnetic separation support base through a fixed connecting rod.

[0021] Explanation: The scraping action of the material leveling scraper is used to level the wear-resistant castable on the grading magnetic separation conveyor belt, making the thickness distribution of the wear-resistant castable on the grading magnetic separation conveyor belt more uniform.

[0022] Preferably, the grading magnetic separation roller shaft is connected to the grading magnetic separation support base through a spacing adjustment mechanism. The spacing adjustment mechanism includes a spacing adjustment fixing cylinder fixed on the top of the grading magnetic separation support base with its opening facing upward. A spacing adjustment sliding cylinder with its opening facing upward is slidably connected in the spacing adjustment fixing cylinder. The magnetic separation roller shaft support base is fixed on the top of the spacing adjustment sliding cylinder. Each end of the grading magnetic separation roller shaft has a roller shaft support rotating shaft coaxial with it. The roller shaft support rotating shaft is rotatably connected to the magnetic separation roller shaft support base.

[0023] The fixed cylinder for adjusting the spacing is equipped with a spacing adjustment drive rod for driving the sliding cylinder for adjusting the spacing to move up and down.

[0024] Note: The spacing adjustment mechanism allows for flexible adjustment of the spacing between the lower side of the grading magnetic separator roller and the upper side of the grading magnetic separator conveyor belt according to actual conditions.

[0025] Compared with the prior art, the beneficial effects of this utility model are reflected in the following aspects:

[0026] 1. The present invention has a reasonable structural design, which can quickly and effectively adsorb and separate magnetic impurities in wear-resistant castables. Compared with traditional magnetic separation equipment, the magnetic separation efficiency is greatly improved, the magnetic separation time is greatly shortened, and the production efficiency is improved.

[0027] 2. This utility model is easy to operate. The graded magnetic separation function can remove ferromagnetic impurities in wear-resistant castables more thoroughly, effectively reducing the impurity content, improving the purity of the castable, and helping to improve the various properties of wear-resistant castables.

[0028] 3. This utility model first uses a primary magnetic separation mechanism to perform high-flow-rate rapid screening of wear-resistant castable, which helps to reduce the workload of subsequent grading magnetic separation. Moreover, the components of the wear-resistant castable after primary magnetic separation are more uniform, which is conducive to spreading it on the grading magnetic separation conveyor belt to form a thin layer of wear-resistant castable for further magnetic separation.

[0029] 4. In this invention, the distance between the lower side of each grading magnetic separator roller and the upper side of the grading magnetic separator conveyor belt is progressively reduced along the conveying direction of the grading magnetic separator conveyor belt. This allows the wear-resistant castable material on the grading magnetic separator conveyor belt to be spread thinly for magnetic separation treatment, which is beneficial for more thorough removal of ferromagnetic impurities. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the primary magnetic separation mechanism of this utility model;

[0031] Figure 2 This is a schematic diagram of the grading magnetic separation mechanism of this utility model;

[0032] Figure 3 yes Figure 2 The left view;

[0033] Figure 4 This is a schematic diagram of the structure of the grading magnetic separation roller shaft of this utility model.

[0034] In the diagram, 10-primary magnetic separation mechanism, 101-primary magnetic separation material discharge channel, 11-primary magnetic separation support base, 12-primary magnetic separation receiving shell, 13-primary magnetic separation electromagnet, 14-primary magnetic separation support plate, 15-primary magnetic separation conveying pipe, 151-primary magnetic separation storage box, 152-primary magnetic separation conveyor, 161-primary magnetic separation material discharge box, 162-primary impurity temporary storage box, 20-grading magnetic separation mechanism, 201-grading impurity temporary storage tank, 202-grading magnetic separation impurity scraper, 203-grading magnetic separation material discharge box, 204- 21-Grading magnetic separation support plate, 22-Grading magnetic separation conveyor belt, 23-Grading magnetic separation input inclined plate, 230-Inclined plate discharge vibration module, 231-Grading magnetic separation input pipe, 232-Grading magnetic separation conveyor, 233-Discharge leveling scraper, 24-Grading magnetic separation roller shaft, 240-Grading magnetic separation permanent magnet, 241-Magnetic separation roller shaft support plate, 242-Roller shaft support shaft, 25-Gap adjustment mechanism, 251-Gap adjustment fixed cylinder, 252-Gap adjustment sliding cylinder, 253-Gap adjustment drive rod. Detailed Implementation

[0035] The following is combined with Figures 1-4 This utility model will be described in detail. For ease of description, the orientations mentioned below are defined as follows: The directions of up, down, left, right, front, and back mentioned below are consistent with the directions of up, down, left, right, front, and back in the projection relationship of their respective main views or structural schematic diagrams.

[0036] Example 1:

[0037] A wear-resistant castable grading magnetic separation device, such as Figure 1 , Figure 2 As shown, it includes a primary magnetic separation mechanism 10 and a grading magnetic separation mechanism 20;

[0038] like Figure 1 As shown, the primary magnetic separation mechanism 10 includes a primary magnetic separation support base 11. Two parallel and hollow primary magnetic separation receiving shells 12 are fixed on the top of the primary magnetic separation support base 11. Multiple primary magnetic separation electromagnets 13 are fixed inside the side of the two primary magnetic separation receiving shells 12 that are close to each other.

[0039] like Figure 1 As shown, a primary magnetic separation support plate 14 is fixed on the top of the primary magnetic separation support base 11 above the primary magnetic separation housing 12, and multiple vertically extending primary magnetic separation conveying pipes 15 are fixed on the primary magnetic separation support plate 14.

[0040] like Figure 1 As shown, a plurality of primary magnetic separation storage boxes 151 are fixed on the top of the primary magnetic separation support plate 14. A primary magnetic separation conveyor 152 is provided in the primary magnetic separation storage box 151. The primary magnetic separation conveyor 152 is a powder conveyor of the prior art. The output ends of the plurality of primary magnetic separation conveyors 152 are connected to the upper end of each primary magnetic separation conveyor pipe 15.

[0041] A primary magnetic separation material discharge channel 101 is formed vertically between the two primary magnetic separation receiving shells 12 on their adjacent sides.

[0042] The primary magnetic separation support 11 has an upward-opening primary magnetic separation discharge box 161 located below the primary magnetic separation discharge channel 101. The primary magnetic separation support 11 has an upward-opening primary impurity temporary storage box 162 located below the two primary magnetic separation receiving shells 12. The primary impurity temporary storage box 162 has a primary impurity guide plate 1621 fixed on the top of the primary impurity temporary storage box 162.

[0043] like Figure 2 As shown, the grading magnetic separation mechanism 20 includes a grading magnetic separation support 21, a horizontally arranged grading magnetic separation conveyor belt 22 is fixed on the top of the grading magnetic separation support 21, and a grading magnetic separation input inclined plate 23 is fixed on the top of the grading magnetic separation support 21 at the input end of the grading magnetic separation conveyor belt 22.

[0044] The top of the grading magnetic separation support 21 is located above the grading magnetic separation conveyor belt 22 and is rotatably connected to multiple grading magnetic separation rollers 24, such as... Figure 4 As shown, the grading magnetic separation roller shaft 24 has a hollow structure inside. Multiple grading magnetic permanent magnets 240 are fixed on the inner side wall of the grading magnetic separation roller shaft 24. The axis of the grading magnetic separation roller shaft 24 is perpendicular to the conveying direction of the grading magnetic separation conveyor belt 22, and the multiple grading magnetic separation roller shafts 24 are arranged along the conveying direction of the grading magnetic separation conveyor belt 22.

[0045] like Figure 4As shown, each grading magnetic separation roller shaft 24 has an upward-facing grading impurity temporary storage tank 201 on its side. A grading magnetic separation impurity scraper 202 is fixed on the side of the grading magnetic separation roller shaft 24 near the grading impurity temporary storage tank 201. The upper side of the grading magnetic separation impurity scraper 202 is in a pressing contact with the side of the grading magnetic separation roller shaft 24.

[0046] like Figure 2 As shown, a horizontally arranged auxiliary support plate 204 is provided on the lower side of the upper section of the grading magnetic separation conveyor belt 22. The upper side of the auxiliary support plate 204 presses against the inner side of the upper section of the grading magnetic separation conveyor belt 22. The auxiliary support plate 204 is fixedly connected to the top of the grading magnetic separation support seat 21 through a fixed connecting rod.

[0047] The classification impurity storage tank 201 extends parallel to the axis of the classification magnetic separation roller 24, and the classification impurity storage tank 201 is fixedly connected to the top of the classification magnetic separation support 21 by a support rod.

[0048] The top of the grading magnetic separation support 21 is located at the output end of the grading magnetic separation conveyor belt 22 and has an upward-facing grading magnetic separation discharge box 203.

[0049] Example 2:

[0050] Based on Example 1, such as Figure 2 As shown, the higher end of the graded magnetic separation input inclined plate 23 is provided with multiple graded magnetic separation input pipes 231, and the graded magnetic separation input pipes 231 are connected to the interior of the primary magnetic separation discharge box 161 through the graded magnetic separation conveyor 232.

[0051] Multiple inclined plate discharge vibration modules 230 are fixed at the bottom of the graded magnetic separation input inclined plate 23.

[0052] Example 3:

[0053] Based on Example 2, such as Figure 2 As shown, a material discharge leveling scraper 233 is provided above the grading magnetic separation conveyor belt 22 and between the grading magnetic separation input inclined plate 23 and the grading magnetic separation roller shaft 24. The plane of the material discharge leveling scraper 233 is arranged perpendicular to the conveying direction of the grading magnetic separation conveyor belt 22. The material discharge leveling scraper 233 is fixedly connected to the top of the grading magnetic separation support 21 through a fixed connecting rod.

[0054] Example 4:

[0055] Based on Example 3, such as Figure 3As shown, the grading magnetic separation roller shaft 24 is connected to the grading magnetic separation support base 21 through the spacing adjustment mechanism 25. The spacing adjustment mechanism 25 includes a spacing adjustment fixing cylinder 251 fixed to the top of the grading magnetic separation support base 21 with its opening facing upward. A spacing adjustment sliding cylinder 252 with its opening facing upward is slidably connected in the spacing adjustment fixing cylinder 251. The magnetic separation roller shaft support base 241 is fixed to the top of the spacing adjustment sliding cylinder 252. Each end of the grading magnetic separation roller shaft 24 has a roller shaft support rotating shaft 242 coaxial with it. The roller shaft support rotating shaft 242 is rotatably connected to the magnetic separation roller shaft support base 241. The roller shaft support rotating shaft 242 is driven to rotate by a prior art servo motor fixed to the magnetic separation roller shaft support base 241 through gear transmission.

[0056] The spacing adjustment fixed cylinder 251 is provided with a spacing adjustment drive rod 253 for driving the spacing adjustment sliding cylinder 252 to move up and down. The spacing adjustment drive rod 253 is an existing electric control telescopic rod. The outer rod end of the spacing adjustment drive rod 253 is fixedly connected to the bottom of the spacing adjustment fixed cylinder 251, and the inner rod end of the spacing adjustment drive rod 253 is fixedly connected to the top of the spacing adjustment sliding cylinder 252.

[0057] It should be noted that the primary magnetic separator 13, the graded magnetic separator conveyor belt 22, and the inclined plate discharge vibration module 230 used in this application are all existing technologies and are not specifically limited here. Those skilled in the art can choose according to their needs, as long as they can achieve the technical solution of this application.

[0058] In practical application, the present invention first uses the primary magnetic separation mechanism 10 to perform preliminary screening of the wear-resistant castable to be processed. The wear-resistant castable to be processed is stored in each primary magnetic separation storage box 151. The primary magnetic separation conveyor 152 is used to transport the wear-resistant castable to be processed to each primary magnetic separation conveying pipe 15. The wear-resistant castable to be processed is discharged from the lower end of the primary magnetic separation conveying pipe 15 and, under the action of gravity, the wear-resistant castable to be processed falls freely from top to bottom through the primary magnetic separation discharge channel 101.

[0059] When each primary magnetic separator 13 is energized, under the action of the magnetic field, the ferromagnetic impurities in the wear-resistant castable will be adsorbed onto the outer surface of the primary magnetic separator housing 12.

[0060] Each primary magnetic separator conveyor 152 and each primary magnetic separator electromagnet 13 operate synchronously and intermittently. That is, when each primary magnetic separator conveyor 152 starts, each primary magnetic separator electromagnet 13 is also energized synchronously, and when each primary magnetic separator conveyor 152 stops running, each primary magnetic separator electromagnet 13 is also de-energized synchronously.

[0061] In this working mode, the wear-resistant castable that has been screened after free fall through the primary magnetic separation feeding channel 101 will fall directly into the primary magnetic separation feeding box 161 for storage. The ferromagnetic impurities adsorbed on the outer surface of the primary magnetic separation receiving shell 12 will fall freely along the outer surface of the primary magnetic separation receiving shell 12 and enter the primary impurity temporary storage box 162 for storage when each primary magnetic separator electromagnet 13 is simultaneously de-energized.

[0062] The wear-resistant castable in the primary magnetic separation box 161 is further classified and magnetically separated using the grading magnetic separation mechanism 20. The wear-resistant castable in the primary magnetic separation box 161 is transported to the grading magnetic separation input pipe 231 using the grading magnetic separation conveyor 232. The wear-resistant castable is discharged from the lower end of the grading magnetic separation input pipe 231 and falls on the upper side of the grading magnetic separation input inclined plate 23. Under the vibration of multiple inclined plate discharge vibration modules 230, the wear-resistant castable gradually slides down the upper side of the grading magnetic separation input inclined plate 23 and is discharged from the lower end of the grading magnetic separation input inclined plate 23 and falls on the grading magnetic separation conveyor belt 22.

[0063] like Figure 2 As shown, the upper section of the grading magnetic separation conveyor belt 22 runs from right to left. The grading magnetic separation conveyor belt 22 carries the wear-resistant castable material along with it. After passing the material discharge leveling scraper 233, the scraping action of the material discharge leveling scraper 233 is used to scrape the wear-resistant castable material on the grading magnetic separation conveyor belt 22, so that the thickness distribution of the wear-resistant castable material on the grading magnetic separation conveyor belt 22 is more uniform.

[0064] Next, the grading magnetic separation conveyor belt 22 carries the wear-resistant castable material through each grading magnetic separation roller shaft 24. The roller shaft support shaft 242 is driven to rotate by a conventional servo motor fixed on the magnetic separation roller shaft support 241 via gear transmission. Figure 2 For reference, the rotation direction of each grading magnetic separation roller shaft 24 is clockwise, and the linear velocity of the lower side of each grading magnetic separation roller shaft 24 is the same as the linear velocity of the grading magnetic separation conveyor belt 22.

[0065] When the grading magnetic separation conveyor belt 22 carries the wear-resistant castable material through each grading magnetic separation roller shaft 24, the ferromagnetic impurities in the wear-resistant castable material are attracted by the magnetic field of multiple grading magnetic separation permanent magnets 240 on the inner side wall of the grading magnetic separation roller shaft 24, and the ferromagnetic impurities adsorbed on the outer surface of the grading magnetic separation roller shaft 24 rotate together with the grading magnetic separation roller shaft 24. When passing through the grading impurity temporary storage tank 201, the ferromagnetic impurities adsorbed on the outer surface of the grading magnetic separation roller shaft 24 are scraped off by the scraping action of the grading magnetic separation impurity scraper 202, and the ferromagnetic impurities fall into the grading impurity temporary storage tank 201 along the grading magnetic separation impurity scraper 202.

[0066] If the distance between the lower side of the material-feeding flat scraper 233 and the upper side of the grading magnetic separation conveyor belt 22 is set to L, then from right to left, the distances between the lower side of each grading magnetic separation roller shaft 24 and the upper side of the grading magnetic separation conveyor belt 22 are L, (90%)L, and (90%) respectively. 2 L, (90%) 3 L, (90%) 4 L, and so on, the wear-resistant castable on the graded magnetic separation conveyor belt 22 is spread thinly for magnetic separation treatment;

[0067] Furthermore, from right to left, the magnetic field strength of the permanent magnets 240 inside each graded magnetic separation roller 24 is distributed in a stepped manner, increasing or decreasing. Those skilled in the art can adjust it according to the actual situation.

[0068] The spacing adjustment mechanism 25 is used to adjust the spacing between the lower side of the grading magnetic separation roller shaft 24 and the upper side of the grading magnetic separation conveyor belt 22. The inner rod of the spacing adjustment drive rod 253 extends and drives the spacing adjustment sliding cylinder 252, together with the magnetic separation roller shaft support seat 241, the roller shaft support rotating shaft 242 and the grading magnetic separation roller shaft 24, to move upward along the vertical axis of the spacing adjustment fixing cylinder 251, thereby increasing the spacing between the lower side of the grading magnetic separation roller shaft 24 and the upper side of the grading magnetic separation conveyor belt 22. The inner rod of the spacing adjustment drive rod 253 retracts and drives the spacing adjustment sliding cylinder 252, together with the magnetic separation roller shaft support seat 241, the roller shaft support rotating shaft 242 and the grading magnetic separation roller shaft 24, to move downward along the vertical axis of the spacing adjustment fixing cylinder 251, thereby decreasing the spacing between the lower side of the grading magnetic separation roller shaft 24 and the upper side of the grading magnetic separation conveyor belt 22.

[0069] After being graded and magnetically separated, the wear-resistant castable is discharged from the left end of the graded magnetic separation conveyor belt 22, i.e., the output end of the graded magnetic separation conveyor belt 22, and falls into the graded magnetic separation discharge box 203 for storage, thus completing the magnetic separation process of the wear-resistant castable.

Claims

1. A magnetic separation device for classifying wear-resistant castables, characterized in that, It includes a primary magnetic separation unit (10) and a grading magnetic separation unit (20); The primary magnetic separation mechanism (10) includes a primary magnetic separation support base (11). The top of the primary magnetic separation support base (11) has two parallel and hollow primary magnetic separation housings (12). A plurality of primary magnetic separation electromagnets (13) are fixed inside the two primary magnetic separation housings (12) that are close to each other. The primary magnetic separation support base (11) is located above the primary magnetic separation housing (12) and a primary magnetic separation support plate (14) is fixed on the top. Multiple vertically extending primary magnetic separation conveying pipes (15) are fixed on the primary magnetic separation support plate (14). The grading magnetic separation mechanism (20) includes a grading magnetic separation support base (21), a horizontally arranged grading magnetic separation conveyor belt (22) is fixed on the top of the grading magnetic separation support base (21), and a grading magnetic separation input inclined plate (23) is fixed on the top of the grading magnetic separation support base (21) at the input end of the grading magnetic separation conveyor belt (22); The top of the graded magnetic separation support (21) is located above the graded magnetic separation conveyor belt (22) and is rotatably connected to multiple graded magnetic separation roller shafts (24). The graded magnetic separation roller shafts (24) have a hollow structure inside, and multiple graded magnetic separation permanent magnets (240) are fixed on the inner side wall of the graded magnetic separation roller shafts (24). Each of the grading magnetic separation roller shafts (24) has an upward-facing grading impurity storage groove (201) on its side. A grading magnetic separation impurity scraper (202) is fixed to the side of the grading magnetic separation roller shaft (24) near the grading magnetic separation roller shaft (24). The upper side of the grading magnetic separation impurity scraper (202) is in a pressing contact with the side of the grading magnetic separation roller shaft (24). The upper section of the graded magnetic separation conveyor belt (22) is provided with a horizontally arranged auxiliary support plate (204).

2. The wear-resistant castable refractory grading magnetic separation equipment according to claim 1, characterized in that, The primary magnetic separation support plate (14) has multiple primary magnetic separation storage boxes (151) fixed on top. Each primary magnetic separation storage box (151) is equipped with a primary magnetic separation conveyor (152). The output ends of the multiple primary magnetic separation conveyors (152) are connected to the upper end of each primary magnetic separation conveyor pipe (15). A primary magnetic separation material discharge channel (101) is formed vertically between the two primary magnetic separation receiving shells (12) on their sides that are close to each other. The primary magnetic separation support base (11) is provided with an upward-opening primary magnetic separation discharge box (161) located below the primary magnetic separation discharge channel (101) on the top. The primary magnetic separation support base (11) is provided with an upward-opening primary impurity temporary storage box (162) located below the two primary magnetic separation receiving shells (12) on the top. The primary impurity temporary storage box (162) is fixed with a primary impurity guide plate (1621) on the top.

3. The wear-resistant castable refractory grading magnetic separation equipment according to claim 2, characterized in that, The higher end of the graded magnetic separation input inclined plate (23) is provided with multiple graded magnetic separation input pipes (231), and the graded magnetic separation input pipes (231) are connected to the interior of the primary magnetic separation discharge box (161) through the graded magnetic separation conveyor (232); Multiple inclined plate material discharge vibration modules (230) are fixed at the bottom of the graded magnetic separation input inclined plate (23).

4. The wear-resistant castable refractory grading magnetic separation equipment according to claim 1, characterized in that, A material discharge leveling scraper (233) is provided above the graded magnetic separation conveyor belt (22) and between the graded magnetic separation input inclined plate (23) and the graded magnetic separation roller shaft (24). The plane of the material discharge leveling scraper (233) is arranged perpendicular to the conveying direction of the graded magnetic separation conveyor belt (22). The material discharge leveling scraper (233) is fixedly connected to the top of the graded magnetic separation support base (21) through a fixed connecting rod.

5. The wear-resistant castable refractory grading magnetic separation equipment according to claim 1, characterized in that, The grading magnetic separation roller shaft (24) is connected to the grading magnetic separation support base (21) through a spacing adjustment mechanism (25). The spacing adjustment mechanism (25) includes a spacing adjustment fixing cylinder (251) fixed on the top of the grading magnetic separation support base (21) with its opening facing upward. A spacing adjustment sliding cylinder (252) with its opening facing upward is slidably connected in the spacing adjustment fixing cylinder (251). A magnetic separation roller shaft support base (241) is fixed on the top of the spacing adjustment sliding cylinder (252). Each end of the grading magnetic separation roller shaft (24) has a roller shaft support rotating shaft (242) coaxial with it. The roller shaft support rotating shaft (242) is rotatably connected to the magnetic separation roller shaft support base (241). The pitch adjustment fixed cylinder (251) is provided with a pitch adjustment drive rod (253) for driving the pitch adjustment sliding cylinder (252) to move up and down.

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