A magnetic separation device for impermeable refractory raw materials

Abstract

This utility model discloses a magnetic separation device for impermeable refractory raw materials, belonging to the technical field of magnetic separation equipment. It includes a fixed plate, a conveying mechanism, a hopper, and a magnetic attraction mechanism. The conveying mechanism includes a drive shaft and a conveyor belt, with a driving component at one end of the drive shaft. The magnetic attraction mechanism includes a magnetic roller and a scraper. The magnetic roller and the drive shaft are connected via the drive belt. A torsion shaft is rotatably mounted on the fixed plate, connected to the fixed plate via a torsion spring. One end of the torsion shaft has a protrusion, and the other end is fitted with a gear. The drive shaft is fitted with an incomplete gear. This utility model uses a conveyor belt to transport the refractory material, allowing the magnetic roller to attract iron filings within the refractory material. Simultaneously, the drive shaft drives the magnetic roller to rotate, causing the scraper to remove the iron filings attracted to the magnetic roller. This avoids excessive iron filings accumulating on the magnetic roller without requiring machine shutdown. Furthermore, the protrusion can intermittently rotate to strike the scraper, allowing the iron filings on the scraper to be quickly discharged.

Description

Technical Field

[0001] This utility model relates to the field of magnetic separation equipment technology, specifically to a magnetic separation equipment for impermeable refractory raw materials. Background Technology

[0002] Refractory materials refer to a class of inorganic non-metallic materials with a refractoriness of not less than 1580℃. Due to their high-temperature resistance, they are widely used in the metallurgical field. However, during the processing of refractory materials, even trace amounts of iron filings in the raw materials can significantly affect the high-temperature resistance of the refractory materials. Therefore, it is necessary to remove iron from the raw materials.

[0003] Iron removal from refractory materials is mainly achieved through magnetic separation equipment. However, existing magnetic separation equipment requires cleaning the iron filings on the magnets after a period of use to prevent excessive accumulation of iron filings. Cleaning the iron filings on the magnets requires stopping the machine, which affects the separation efficiency of the magnetic separation equipment. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a magnetic separation device for impermeable refractory raw materials.

[0005] The technical solution of this utility model is: a magnetic separation device for impermeable refractory raw materials, comprising two fixed plates, a conveying mechanism disposed between the two fixed plates, a hopper disposed at one end of the conveying mechanism, and a magnetic attraction mechanism disposed above the conveying mechanism; the conveying mechanism includes two parallel and rotatably mounted drive shafts on the fixed plates, and a conveyor belt sleeved between the two drive shafts, one end of the drive shaft passing through the fixed plate and having a driving component; the magnetic attraction mechanism includes a magnetic roller rotatably mounted on the fixed plate, and a scraper disposed on one side of the magnetic roller for cleaning the magnetic roller; one end of the magnetic roller passes through the fixed plate and is connected to a drive shaft via a drive belt, a torsion shaft is rotatably mounted on the fixed plate below the scraper, the torsion shaft is connected to the fixed plate via a torsion spring, and one end of the torsion shaft has a protrusion for striking the scraper by torsion, the other end of the torsion shaft passes through the fixed plate and has a gear sleeved thereon, and one end of the other drive shaft passes through the fixed plate and has an incomplete gear meshing with the gear sleeved thereon.

[0006] Explanation: The above equipment drives the transmission shaft to rotate via a drive component, which in turn causes the conveyor belt to transport refractory material. When the refractory material passes through the magnetic roller, the magnetic roller can adsorb iron filings within the refractory material. At the same time, the transmission shaft can drive the magnetic roller to rotate, causing the scraper to scrape off the iron filings adsorbed on the magnetic roller. This avoids excessive accumulation of iron filings on the magnetic roller without stopping the machine. Furthermore, the transmission shaft can drive the gear to rotate intermittently via an incomplete gear, causing the torsion shaft to drive the protrusion to rotate intermittently and strike the scraper, allowing the iron filings on the scraper to be quickly discharged.

[0007] Furthermore, the other end of the conveying mechanism is provided with a receiving plate that is inclined toward one side of the conveying mechanism, and the scraper is inclined in the opposite direction to the receiving plate.

[0008] Note: The opposite inclination of the receiving plate and the scraper can cause the refractory and iron filings to be discharged in different directions, preventing the separated iron filings from mixing back into the refractory.

[0009] Furthermore, the magnetic roller consists of a shaft rotatably mounted on a fixed plate and an outer cylinder sleeved on the shaft. The side wall of the shaft is provided with two partitions for dividing the interior of the outer cylinder into a magnetic attraction area and a separation area. The magnetic attraction area is provided with an arc-shaped magnet.

[0010] Note: When the magnetic roller rotates to the position corresponding to the separation zone and the scraper, the magnetic force is weak at this time. At this time, the iron filings on the magnetic roller and the scraper can fall off quickly, so that the iron filings on the magnetic roller can be fully separated, avoiding the accumulation of too many iron filings on the magnetic roller, which would affect the subsequent separation effect.

[0011] Furthermore, the central angle corresponding to the separation zone is between 20° and 45°.

[0012] Note: Limiting the central angle of the separation zone can reduce the dead zone of the magnetic roller and prevent the magnetic attraction effect of iron filings from being affected.

[0013] Furthermore, two height-limiting plates are provided above the conveyor belt to flatten the refractory material above the conveyor belt. Both height-limiting plates are inclined towards the side of the hopper and connected to the fixing plate.

[0014] Explanation: The height limit plate can be used to flatten the refractory material above the conveyor belt, so that the refractory material is evenly distributed on the conveyor belt, which can ensure the separation effect of iron filings.

[0015] The beneficial effects of this utility model are:

[0016] (1) This utility model uses a drive component to drive a conveyor belt to transport refractory material, so that the magnetic roller can adsorb iron filings in the refractory material. At the same time, the drive shaft can drive the magnetic roller to rotate, so that the scraper can scrape off the iron filings adsorbed on the magnetic roller. This avoids the accumulation of too many iron filings on the magnetic roller without stopping the machine. The protrusion can rotate intermittently to knock on the scraper, so that the iron filings on the scraper can be quickly discharged.

[0017] (2) When the magnetic roller of this utility model rotates to the position of the separation zone and the scraper, the iron filings can fall off quickly, so that the iron filings on the magnetic roller and the scraper can be fully separated, avoiding the accumulation of too many iron filings on the magnetic roller and affecting the subsequent separation effect. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the left-side fixing plate structure of Embodiment 1 of this utility model;

[0019] Figure 2 This is a schematic diagram of the right-side fixing plate structure of Embodiment 1 of this utility model;

[0020] Figure 3 This is a cross-sectional view of Embodiment 1 of this utility model;

[0021] Figure 4 This is a top view of Embodiment 1 of this utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the magnetic roller in Embodiment 2 of this utility model;

[0023] Among them, 1-fixed plate, 11-feeding hopper, 12-receiving plate, 13-height limit plate, 2-drive shaft, 21-conveyor belt, 22-drive component, 23-incomplete gear, 3-magnetic roller, 31-shaft, 32-partition plate, 33-outer cylinder, 34-arc magnet, 35-scraper, 36-torsion shaft, 37-protrusion, 38-gear. Detailed Implementation

[0024] The present invention will now be described in more detail with reference to specific embodiments, so as to better demonstrate the advantages of the present invention.

[0025] Example 1: As Figure 1 , Figure 2 As shown, a magnetic separation device for impermeable refractory raw materials includes two fixed plates 1, a conveying mechanism disposed between the two fixed plates 1, a feeding hopper 11 disposed at the left end of the conveying mechanism and connected to the fixed plate 1, and a magnetic suction mechanism disposed above the conveying mechanism; the conveying mechanism includes two parallel drive shafts 2 rotatably disposed on the fixed plates 1, and a conveyor belt 21 sleeved between the two drive shafts 2, the upper end of the left drive shaft 2 passing through the fixed plate 1 and provided with a driving component 22, the driving component 22 being a commercially available motor; as Figure 3 As shown, the magnetic attraction mechanism includes a magnetic roller 3 rotatably mounted on a fixed plate 1, and a scraper 35 disposed to the right of the magnetic roller 3 for cleaning the magnetic roller 3; the magnetic roller 3 is made of magnets, such as... Figure 4As shown, the lower end of the magnetic roller 3 passes through the fixed plate 1 and is connected to the left drive shaft 2 via a drive belt. Both the magnetic roller 3 and the left drive shaft 2 have pulleys at their lower ends, connected by a drive belt. Two fixed plates 1 located below the scraper 35 each have a rotatable torsion shaft 36. Both torsion shafts 36 are connected to the fixed plate 1 via torsion springs. One end of each torsion shaft 36 has a protrusion 37 that strikes the scraper 35 by twisting the shaft. One end of each torsion shaft 36 passes through the fixed plate 1 and is fitted with... A gear 38 is provided. Both ends of the left transmission shaft 2 pass through the fixed plate 1 and are fitted with incomplete gears 23 that mesh with the corresponding gear 38. The right end of the conveying mechanism is provided with a receiving plate 12 that is inclined towards the conveying mechanism. The scraper 35 is inclined and the inclination direction of the scraper 35 is opposite to that of the receiving plate 12. Two height limiting plates 13 are provided above the conveyor belt 21 to push the refractory material above the conveyor belt 21 flat. Both height limiting plates 13 are inclined at 15° towards the side of the lower hopper 11 and connected to the fixed plate 1.

[0026] The working principle of the above equipment is as follows: Refractory material is added to the conveyor belt 21 through the hopper 11. The drive unit 22 can drive the transmission shaft 2 to rotate, causing the conveyor belt 21 to move the refractory material to the right. When the refractory material passes through the height limit plate 13, the height limit plate 13 will push the refractory material flat. At the same time, the left transmission shaft 2 can drive the magnetic roller 3 to rotate through the pulley. When the refractory material moves to the area where the magnetic roller 3 is located, the magnetic roller 3 will attract the iron filings in the refractory material to the magnetic roller 3. After removing the iron filings... The refractory material falls from the receiving plate 12 to below the conveyor belt 21. When the magnetic roller 3 is in motion, the scraper 35 scrapes off the iron filings on the magnetic roller 3. The right drive shaft 2 can drive the incomplete gear 23 to rotate. When the incomplete gear 23 meshes with the gear 38, it will drive the torsion shaft 36 to rotate. When the gear 38 and the incomplete gear 23 are separated, the torsion shaft 36 resets under the action of the torsion spring and strikes the scraper 35, causing the scraper 35 to vibrate, thereby accelerating the discharge speed of the iron filings from the scraper 35.

[0027] Example 2: As Figure 5 As shown, this embodiment is basically the same as embodiment 1, except that the magnetic roller 3 is composed of a shaft 31 rotatably mounted on a fixed plate 1 and an outer cylinder 33 sleeved on the shaft 31. The side wall of the shaft 31 is provided with two partitions 32 for dividing the interior of the outer cylinder 33 into a magnetic attraction area and a separation area. An arc-shaped magnet 34 is provided in the magnetic attraction area. The central angle corresponding to the separation area is 45°.

[0028] The working principle of the magnetic roller 3 is as follows: when the magnetic roller 3 rotates, the iron filings can remain at the scraper 35. When the magnetic roller 3 rotates to the separation zone and corresponds to the position of the scraper 35, the magnetic force disappears and the iron filings on the scraper 35 can quickly detach from the magnetic roller 3, thereby increasing the detachment speed of the iron filings on the magnetic roller 3.

[0029] Example 3: This example is basically the same as Example 1, except that the central angle corresponding to the separation zone is 30°.

Claims

1. A magnetic separation apparatus for anti-seepage refractory material raw materials, characterized in that, The device includes two fixed plates (1), a conveying mechanism disposed between the two fixed plates (1), a hopper (11) disposed at one end of the conveying mechanism, and a magnetic suction mechanism disposed above the conveying mechanism; the conveying mechanism includes two parallel and rotatably mounted drive shafts (2) on the fixed plates (1), and a conveyor belt (21) sleeved between the two drive shafts (2), one end of which passes through the fixed plate (1) and is provided with a driving member (22); the magnetic suction mechanism includes a magnetic roller (3) rotatably mounted on the fixed plate (1), and a scraper disposed on one side of the magnetic roller (3) for cleaning the magnetic roller (3). 35); One end of the magnetic roller (3) passes through the fixed plate (1) and is connected to a transmission shaft (2) via a transmission belt. A torsion shaft (36) is rotatably provided on the fixed plate (1) below the scraper (35). The torsion shaft (36) is connected to the fixed plate (1) via a torsion spring. One end of the torsion shaft (36) is provided with a protrusion (37) that strikes the scraper (35) by torsion of the torsion shaft (36). The other end of the torsion shaft (36) passes through the fixed plate (1) and is fitted with a gear (38). One end of another transmission shaft (2) passes through the fixed plate (1) and is fitted with an incomplete gear (23) that meshes with the gear (38).

2. A magnetic separation apparatus for anti-seepage refractory material raw materials according to claim 1, characterized in that, The other end of the conveying mechanism is provided with a receiving plate (12) that is inclined toward one side of the conveying mechanism. The scraper (35) is inclined and the inclination direction of the scraper (35) is opposite to that of the receiving plate (12).

3. A magnetic separation apparatus for anti-seepage refractory material raw materials according to claim 1, characterized in that, The magnetic roller (3) consists of a shaft (31) rotatably mounted on a fixed plate (1) and an outer cylinder (33) sleeved on the shaft (31). The side wall of the shaft (31) is provided with two partitions (32) for dividing the interior of the outer cylinder (33) into a magnetic attraction area and a separation area. The magnetic attraction area is provided with an arc-shaped magnet (34).

4. A magnetic separation apparatus for anti-seepage refractory material raw materials according to claim 3, characterized in that, The central angle corresponding to the separation zone is between 20° and 45°.

5. The magnetic separation equipment for impermeable refractory raw materials according to claim 1, characterized in that, Two height-limiting plates (13) are provided above the conveyor belt (21) to push the refractory material above the conveyor belt (21) flat. Both height-limiting plates (13) are inclined to the side of the hopper (11) and connected to the fixing plate (1).

Images