A coal powder iron removal device for coal separation in a coal separation plant

Abstract

The utility model provides a coal dust deironing device for coal preparation plant coal preparation relates to coal preparation equipment technical field, including deironing box, the inside of deironing box is provided with deironing mechanism, deironing mechanism includes feed conduit, the outer surface of feed conduit is fixedly connected with the inner wall of deironing box, and the inside rotationally connected of deironing box has two permanent -magnetic roller, and the left end of each permanent -magnetic roller is fixedly connected with servo motor, and the outer surface of each permanent -magnetic roller is provided with the baffle, and the outer surface of each baffle is fixedly connected with the inner wall of deironing box, and the inside slidingly connected of deironing box has two collecting box, and the inside of deironing box is provided with two scrapers. The coal dust deironing device for coal preparation plant coal preparation, solve in use, cannot remove the impurity adsorbed on the deironing part in operation, and each time iron powder is cleaned and needs to stop the equipment operation problem, will not affect the continuity when deironing, play the effect of improving the coal dust deironing device use effect.

Description

Technical Field

[0001] This utility model relates to a coal powder iron removal device, specifically a coal powder iron removal device used in coal preparation plants, belonging to the field of coal preparation equipment technology. Background Technology

[0002] Powdered coal is the most commonly used additive in cast iron molding sand. However, during the production and processing of powdered coal, iron powder may be mixed in, affecting the quality of the powdered coal. Therefore, it is necessary to remove iron powder from the coal to obtain pure powdered coal.

[0003] Chinese patent CN221514818U discloses a coal powder iron removal device for coal preparation plants. It uses an electromagnet to adsorb iron powder in the coal to achieve a good iron removal effect. At the same time, it uses a flow fan to drive the airflow, which drives the separated coal powder to flow backward, so as to achieve the purpose of separating iron powder and coal powder.

[0004] The aforementioned patented technology cannot remove impurities adsorbed on the iron removal components during operation. Each time iron powder needs to be cleaned, the equipment must be stopped, severely impacting the continuity of iron removal and reducing the effectiveness of the pulverized coal iron removal device. Therefore, this paper proposes a pulverized coal iron removal device for coal preparation plants. Utility Model Content

[0005] This invention proposes a coal powder iron removal device for coal preparation plants to solve the problem in the prior art that it is impossible to remove impurities adsorbed on the iron removal components during operation.

[0006] This utility model is achieved through the following technical solution: a coal powder iron removal device for coal preparation in a coal preparation plant, comprising an iron removal box, wherein an iron removal mechanism is provided inside the iron removal box;

[0007] The iron removal mechanism includes a feed conduit, the outer surface of which is fixedly connected to the inner wall of the iron removal box. Two permanent magnet rollers are rotatably connected inside the iron removal box. A servo motor is fixedly connected to the left end of each permanent magnet roller. A partition is provided on the outer surface of each permanent magnet roller. The outer surface of each partition is fixedly connected to the inner wall of the iron removal box. Two collection boxes are slidably connected inside the iron removal box. Two scrapers are provided inside the iron removal box. The side of each scraper that is close to the other is in contact with the outer surface of the permanent magnet roller. Two high-pressure airflow nozzles are fixedly connected to the inner wall of the iron removal box.

[0008] An auxiliary component is provided on the left side of the iron removal box.

[0009] Each of the permanent magnet rollers is fitted with an auxiliary bearing on its outer surface, and each of the auxiliary bearings is embedded inside the iron removal box.

[0010] Each of the two collection boxes has an auxiliary handle fixedly connected to one of its opposite sides, and the outer surface of each auxiliary handle is fixedly connected to an anti-slip rubber sleeve.

[0011] Each scraper has two fixed plates fixedly connected to its upper surface, and each fixed plate has a fixed bolt slidably connected inside, and each fixed bolt is threadedly connected to the iron removal box.

[0012] The inner wall of the iron removal box is fixedly connected to a guide plate, and the bottom surface of the guide plate is fixedly connected to a discharge pipe.

[0013] The auxiliary component includes an auxiliary box, the right side of which is fixedly connected to the left side of the iron removal box. An air pump is fixedly connected to the left side of the auxiliary box. Conveying pipes are fixedly connected to the front and back of the auxiliary box. The right end of each conveying pipe passes through the iron removal box and is fixedly connected to the left end of a high-pressure airflow nozzle.

[0014] This utility model provides a coal powder iron removal device for coal preparation in a coal preparation plant, which has the following beneficial effects:

[0015] This pulverized coal iron removal device for coal preparation plants consists of an iron removal box, a feed pipe, a permanent magnet drum, a servo motor, a partition, a collection box, a scraper, high-pressure airflow nozzles, and auxiliary components. Pulverized coal is evenly poured into the iron removal box through the feed pipe. Simultaneously, the servo motor drives the permanent magnet drum to rotate slowly, causing the pulverized coal to flow through the gap between the two permanent magnet drums. This process adsorbs iron impurities mixed in with the pulverized coal. The partition divides the permanent magnet drum into two areas. When the permanent magnet drum rotates to the other area, the scraper removes impurities adhering to its surface. The high-pressure airflow nozzles then further clean the permanent magnet drum, and the removed iron impurities fall into the collection box for collection. This device solves the problem of not being able to remove impurities adsorbed on the iron removal components during operation, requiring the equipment to be stopped every time iron powder is cleaned. It does not affect the continuity of iron removal and improves the effectiveness of the pulverized coal iron removal device. Attached Figure Description

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

[0017] Figure 2 This is a cross-sectional view of the iron removal box of this utility model;

[0018] Figure 3 This is a cross-sectional view of the scraper structure of this utility model;

[0019] Figure 4 This is a cross-sectional view of the guide plate of this utility model.

[0020] Explanation of reference numerals in the attached figures

[0021] 1. Remove iron boxes;

[0022] 2. Iron removal mechanism; 201. Feed guide pipe; 202. Permanent magnet drum; 203. Servo motor; 204. Baffle plate; 205. Collection box; 206. Scraper; 207. High-pressure airflow nozzle;

[0023] 3. Auxiliary components; 301. Auxiliary box; 302. Air pump; 303. Delivery pipe;

[0024] 4. Auxiliary bearing; 5. Auxiliary handle; 6. Anti-slip rubber sleeve; 7. Fixing plate; 8. Fixing bolt; 9. Guide plate; 10. Discharge pipe. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0026] Please see Figures 1-4 This utility model provides a coal powder iron removal device for coal preparation in a coal preparation plant, including an iron removal box 1, and an iron removal mechanism 2 is provided inside the iron removal box 1.

[0027] The iron removal mechanism 2 includes a feed conduit 201, the outer surface of which is fixedly connected to the inner wall of the iron removal box 1. Two permanent magnet rollers 202 are rotatably connected inside the iron removal box 1. A servo motor 203 is fixedly connected to the left end of each permanent magnet roller 202. An auxiliary bearing 4 is sleeved on the outer surface of each permanent magnet roller 202. Each auxiliary bearing 4 is embedded inside the iron removal box 1. The auxiliary bearing 4 can reduce the friction generated by the permanent magnet roller 202 when rotating, making the permanent magnet roller 202 more sensitive when rotating, and also reducing the wear rate of the permanent magnet roller 202 and increasing its service life.

[0028] Each permanent magnet roller 202 has a partition 204 on its outer surface. The outer surface of each partition 204 is fixedly connected to the inner wall of the iron removal box 1. Two collection boxes 205 are slidably connected inside the iron removal box 1. Auxiliary handles 5 are fixedly connected to the two collection boxes 205 on their opposite sides. Anti-slip rubber sleeves 6 are fixedly connected to the outer surface of each auxiliary handle 5. The cooperation between the auxiliary handles 5 and the anti-slip rubber sleeves 6 can provide a good force point for the collection box 205, increasing the ease of pushing the collection box 205. The anti-slip rubber sleeves 6 can increase the firmness when gripping the auxiliary handles 5.

[0029] The iron removal box 1 is equipped with two scrapers 206. The sides of the two scrapers 206 that are close to each other are in contact with the outer surface of the permanent magnet roller 202. Two fixing plates 7 are fixedly connected to the upper surface of each scraper 206. Each fixing plate 7 has a fixing bolt 8 slidably connected inside. Each fixing bolt 8 is threadedly connected to the iron removal box 1. The fixing plates 7 and fixing bolts 8 work together to provide a good force-bearing position for the scraper 206, increase the convenience of fixing the scraper 206, and improve the effect of the device during use.

[0030] Two high-pressure airflow nozzles 207 are fixedly connected to the inner wall of the iron removal box 1. A guide plate 9 is fixedly connected to the inner wall of the iron removal box 1. A discharge pipe 10 is fixedly connected to the bottom surface of the guide plate 9. Through the cooperation of the guide plate 9 and the discharge pipe 10, a discharge channel can be provided for the iron removal box 1, which improves the convenience of discharging coal powder after iron removal and further increases the effectiveness of the device in use.

[0031] An auxiliary component 3 is provided on the left side of the iron removal box 1. The auxiliary component 3 includes an auxiliary box 301. The right side of the auxiliary box 301 is fixedly connected to the left side of the iron removal box 1. An air pump 302 is fixedly connected to the left side of the auxiliary box 301. A delivery pipe 303 is fixedly connected to both the front and back of the auxiliary box 301. The right end of each delivery pipe 303 passes through the iron removal box 1 and is fixedly connected to the left end of the high-pressure airflow nozzle 207. The air pump 302 continuously draws external air into the auxiliary box 301 and delivers it to the high-pressure airflow nozzle 207 through the delivery pipe 303, providing a stable airflow source for the high-pressure airflow nozzle 207 and increasing the convenience of use.

[0032] When using this utility model: First, the servo motor 203 and the air pump 302 are connected to the power supply, and the iron removal box 1 is divided into an iron removal area and a discharge area by two partitions 204. When it is necessary to remove iron from the coal powder, the coal powder is added into the iron removal box 1 through the feed pipe 201. At this time, the coal powder will fall evenly from the gap between the two permanent magnet rollers 202 through the feed pipe 201. The two permanent magnet rollers 202 adsorb the iron impurities in the coal powder. After iron removal, the coal powder will be discharged from the iron removal box 1 by the guide plate 9 and the discharge pipe 10.

[0033] At the same time, the power generated by the servo motor 203 drives the two permanent magnet rollers 202 to rotate slowly, and the scraper 206 can continuously scrape the surface of the permanent magnet rollers 202 while they are rotating, thereby scraping off the iron impurities adsorbed on the surface of the permanent magnet rollers 202.

[0034] Then, the air pump 302 draws in external air and delivers it to the high-pressure airflow nozzle 207 through the auxiliary box 301 and the delivery pipe 303. The high-pressure airflow nozzle 207 sprays high-pressure airflow onto the permanent magnet drum 202, thereby blowing off the residual iron impurities on its surface, ensuring the cleanliness of the permanent magnet drum 202. The cleaned iron impurities will fall into the collection box 205 for collection due to gravity. When further processing of iron impurities is needed, the auxiliary handle 5 can be pulled to remove it from the iron removal box 1. This enables the cleaning of adsorbed iron impurities without stopping the machine, effectively increasing the efficiency of the coal powder iron removal device.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A coal powder iron removal device for coal preparation in a coal preparation plant, comprising an iron removal box (1), characterized in that: The iron removal box (1) is equipped with an iron removal mechanism (2) inside. The iron removal mechanism (2) includes a feed conduit (201), the outer surface of which is fixedly connected to the inner wall of the iron removal box (1), and two permanent magnet rollers (202) are rotatably connected inside the iron removal box (1). A servo motor (203) is fixedly connected to the left end of each permanent magnet roller (202). A partition (204) is provided on the outer surface of each permanent magnet roller (202), and the outer surface of each partition (204) is fixedly connected to the inner wall of the iron removal box (1). Two collection boxes (205) are slidably connected inside the iron removal box (1). Two scrapers (206) are provided inside the iron removal box (1). The side of each scraper (206) that is close to the other is in contact with the outer surface of the permanent magnet roller (202). Two high-pressure airflow nozzles (207) are fixedly connected to the inner wall of the iron removal box (1). An auxiliary component (3) is provided on the left side of the iron removal box (1).

2. The pulverized coal iron removal device for coal preparation in a coal preparation plant according to claim 1, characterized in that: Each of the permanent magnet rollers (202) has an auxiliary bearing (4) fitted on its outer surface, and each of the auxiliary bearings (4) is embedded inside the iron removal box (1).

3. The pulverized coal iron removal device for coal preparation in a coal preparation plant according to claim 1, characterized in that: Each of the two collection boxes (205) has an auxiliary handle (5) fixedly connected to one side away from the other, and each auxiliary handle (5) has an anti-slip rubber sleeve (6) fixedly connected to its outer surface.

4. The pulverized coal iron removal device for coal preparation in a coal preparation plant according to claim 1, characterized in that: Each scraper (206) has two fixed plates (7) fixedly connected to its upper surface. Each fixed plate (7) has a fixed bolt (8) slidably connected inside it. Each fixed bolt (8) is threadedly connected to the iron removal box (1).

5. A pulverized coal iron removal device for coal preparation in a coal preparation plant according to claim 1, characterized in that: The inner wall of the iron removal box (1) is fixedly connected to a guide plate (9), and the bottom surface of the guide plate (9) is fixedly connected to a discharge pipe (10).

6. A pulverized coal iron removal device for coal preparation in a coal preparation plant according to claim 1, characterized in that: The auxiliary component (3) includes an auxiliary box (301), the right side of which is fixedly connected to the left side of the iron removal box (1), and an air pump (302) is fixedly connected to the left side of the auxiliary box (301). The front and back sides of the auxiliary box (301) are both fixedly connected to a conveying pipe (303). The right end of each conveying pipe (303) passes through the iron removal box (1) and is fixedly connected to the left end of a high-pressure airflow nozzle (207).

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