Winnowing device for reducing content of fine slag in granular iron

Abstract

A winnowing device for reducing fine slag contained in granular iron relates to the technical field of winnowing equipment and comprises a device box, a permanent magnetic roller and a dust removal fan, an iron-contained fine slag feeding pipe is arranged at the top end of the device box, the permanent magnetic roller is arranged in the device box, and a transmission shaft penetrates through the center of the permanent magnetic roller. The other end of the transmission shaft penetrates through the device box to be connected with a transmission motor, a discharging port and an iron outlet are formed below the permanent magnet roller, an iron shifting plate is arranged at the iron outlet, the discharging port and the iron outlet are connected with one end of a discharging pipe and one end of an iron outlet pipe respectively, and the other end of the discharging pipe and the other end of the iron outlet pipe are connected with a spiral conveyor and a dust removal pipeline respectively. One end of the dust removal pipeline is connected with the dust removal fan, the other end of the dust removal pipeline is connected with the iron containing basin, and lifting plates are arranged on the inner wall of the dust removal pipeline. According to the winnowing device for reducing the content of the fine slag in the granular iron, the content of the fine slag in the granular iron is reduced.

Description

Technical Field:

[0001] The utility model relates to the technical field of air separation equipment, and particularly relates to an air separation device for reducing the fine slag content in granular iron. Background Art:

[0002] The fine slag produced by the ball mill contains more than 8% iron, which affects the roasting conversion rate of the rotary kiln. It is necessary to reduce the iron content in the fine slag to less than 5%. Content of the Utility Model:

[0003] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art, and provide an air separation device for reducing the fine slag content in granular iron, which reduces the fine slag content in granular iron.

[0004] To solve the problems in the background art, the utility model adopts the following technical scheme: it includes a device box, a permanent magnet drum, and a dust removal fan. There is a fine slag with iron feed pipe at the top of the device box. Inside the device box, there is a permanent magnet drum. The center of the permanent magnet drum passes through a transmission shaft. One end of the transmission shaft is connected to the inner wall of the device box through a bearing, and the other end of the transmission shaft passes through the device box and is connected to a transmission motor. Below the permanent magnet drum, there is a discharge port and an iron discharge port. There is a baffle plate at the iron discharge port. One ends of the discharge pipe and the iron discharge pipe are respectively connected to the discharge port and the iron discharge port. The other ends of the discharge pipe and the iron discharge pipe are respectively connected to a screw conveyor and a dust removal pipeline. One end of the dust removal pipeline is connected to the dust removal fan, and the other end of the dust removal pipeline is connected to an iron loading basin. There are lifting plates on the inner wall of the dust removal pipeline.

[0005] The lifting plates are several, and are arranged in a staggered manner from top to bottom. The lifting plates are all inclined. One end of the lifting plate is connected to the inner wall of the dust removal pipeline through a hinge shaft and a spring.

[0006] The beneficial effects of the utility model are:

[0007] 1. There is no need to add equipment, and it can be achieved by connecting the pipeline to the dust removal pipeline;

[0008] 2. The structure is simple and easy to manufacture;

[0009] 3. The sorting effect is good, the fine slag content in granular iron is small, and only the fine slag adhering to the surface of the granular iron remains. Description of the Drawings:

[0010] Figure 1 It is a schematic structural diagram of the utility model. Detailed Embodiment:

[0011] Refer to Figure 1, the specific implementation mode of the present utility model is as follows: It includes a device box 1, a permanent magnet drum 2 and a dust removal fan 7. There is an iron ore concentrate slag feed pipe 6 at the top of the device box 1. Inside the device box 1, there is a permanent magnet drum 2. The center of the permanent magnet drum 2 passes through a transmission shaft. One end of the transmission shaft is connected to the inner wall of the device box 1 through a bearing, and the other end of the transmission shaft passes through the device box 1 and is connected to a drive motor. Below the permanent magnet drum 2, there are a discharge port and an iron outlet. The iron outlet is provided with a baffle plate 3. The discharge port and the iron outlet are respectively connected to one ends of a discharge pipe 4 and an iron discharge pipe 9. The other ends of the discharge pipe 4 and the iron discharge pipe 9 are respectively connected to a screw conveyor 5 and a dust removal pipeline 8. One end of the dust removal pipeline 8 is connected to the dust removal fan 7, and the other end of the dust removal pipeline 8 is connected to an iron loading basin 11. There are lifting plates 10 on the inner wall of the dust removal pipeline 8. The lifting plates 10 are several in number and are arranged in a staggered manner from top to bottom. The lifting plates 10 are all inclined. One end of the lifting plate 10 is connected to the inner wall of the dust removal pipeline 8 through a hinge shaft and a spring.

[0012] When the present iron ore concentrate slag-containing iron ore beneficiation device is in use, start the drive motor. The drive motor drives the permanent magnet drum 2 to rotate clockwise through the transmission shaft. The iron ore concentrate slag enters the device box 1 through the iron ore concentrate slag feed pipe 6 and falls onto the permanent magnet drum 2. After passing through the permanent magnet drum 2, the iron ore is sucked out, and the remaining waste materials fall onto the screw conveyor 5 through the discharge port and the discharge pipeline 4 and are moved to the next working station. Since some of the iron ore concentrate slag contains magnetism, a large amount of iron ore concentrate slag is brought into the iron ore. The iron ore falls into the iron outlet through the baffle plate 3 and enters the iron discharge pipe 9, and then slides into the dust removal pipeline 8. Start the dust removal fan 7. By making a dust removal pipeline type air separator, the lifting plates 10 beat the iron ore to beat off the iron ore concentrate slag mixed in the iron ore. Finally, the iron ore concentrate slag in the iron ore is recovered to the dust collector through the dust removal fan 7, and the pure iron ore falls into the iron loading basin 11.

[0013] In summary, for the present iron ore concentrate slag-containing iron ore beneficiation device, there is no need to add equipment, and it can be achieved by connecting the pipeline to the dust removal pipeline; the structure is simple and easy to manufacture; the separation effect is good, the amount of iron ore concentrate slag in the iron ore is small, and only the iron ore concentrate slag adhering to the surface of the iron ore remains.

Claims

1. A fine slag pneumatic separation device for reducing the fine slag content in granular iron, characterized in that: It includes a device box (1), a permanent magnet drum (2) and a dust removal fan (7). The top of the device box (1) is provided with an iron concentrate slag feed pipe (6). The permanent magnet drum (2) is arranged inside the device box (1). The center of the permanent magnet drum (2) passes through a transmission shaft. One end of the transmission shaft is connected to the inner wall of the device box (1) through a bearing, and the other end of the transmission shaft passes through the device box (1) and is connected to a transmission motor. A discharge port and an iron discharge port are arranged below the permanent magnet drum (2). A baffle plate (3) is provided at the iron discharge port. The discharge port and the iron discharge port are respectively connected to one ends of a discharge pipe (4) and an iron discharge pipe (9). The other ends of the discharge pipe (4) and the iron discharge pipe (9) are respectively connected to a screw conveyor (5) and a dust removal pipeline (8). One end of the dust removal pipeline (8) is connected to the dust removal fan (7), and the other end of the dust removal pipeline (8) is connected to an iron loading basin (11). A material lifting plate (10) is provided on the inner wall of the dust removal pipeline (8).

2. The air separation device for reducing fine slag in granular iron according to claim 1, wherein: The said material lifting plates (10) are several in number and are arranged staggeredly from top to bottom. The material lifting plates (10) are all inclined. One end of the material lifting plate (10) is connected to the inner wall of the dust removal pipeline (8) through a hinge shaft and a spring.

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