Ore unloading device capable of improving concentrate recovery rate of magnetic separator

Abstract

The utility model discloses an ore unloading device capable of improving the concentrate recovery rate of a magnetic separator, belongs to the technical field of wet permanent magnet drum type magnetic separator equipment, and is used for recovering and unloading ores from a drum of the magnetic separator. According to the technical scheme, a scraper is a rectangular plate, a scraper support is composed of a fixing plate and two supporting arms, the scraper is connected with the fixing plate through fixing bolts, bases are triangular plates, pin holes are formed in the upper portions of the two bases respectively, and the supporting arms are arranged at the two ends of the fixing plate of the scraper support and rotationally connected with the upper portions of the bases through pin shafts respectively. The two bases are fixedly connected with a magnetic separator groove body frame, and the two ends of the two tension springs are connected between the two bases and the two ends of a fixing plate of the scraper support respectively. The magnetic separator is simple in structure and convenient to use, magnetite powder attached to the surface of the roller of the magnetic separator can be scraped into a concentrate tank by the scraper, loss of concentrate in tailings can be greatly reduced, the recovery rate of the magnetic separator is improved, and economic benefits of a magnetite dressing plant are increased.

Description

Technical Field

[0001] The utility model relates to a ore unloading device for concentrate recovery of a magnetic separator, belonging to the technical field of wet permanent magnet drum magnetic separator equipment. Background Technique

[0002] Wet permanent magnet drum magnetic separators are widely used in magnetite ore dressing plants. According to different structural forms, they are mainly countercurrent type, concurrent flow type, and semi-countercurrent type. There are various ore unloading methods for magnetic separators according to the production process. When the weak magnetic separator is separating, when the concentrate reaches the edge of the magnetic system, it enters the concentrate hopper under the impact of the unloading water to complete the separation. The existing ore unloading device for weak magnetic separators uses a duckbill valve to spray water flow or an overflow water tank for ore unloading, and cannot adjust the water pressure according to the height of the concentrate belt. The water flow sprayed by the traditional duckbill valve is in a flat arc shape. When the pressure is low, ore unloading cannot be carried out, and it is easy to miss unloading; when the pressure is high, splashing of ore is likely to occur, which is not conducive to the maintenance of the production civilization of ore dressing. Therefore, the current ore unloading method of wet permanent magnet drum magnetic separators is not perfect, and the ore unloading effect is defective, resulting in incomplete ore unloading, too high iron grade in tailings, unqualified tailings indexes, reduced recovery rate, metal loss in ore dressing, increased production costs, and reduced economic benefits of enterprises. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide an ore unloading device that can improve the concentrate recovery rate of a magnetic separator. This ore unloading device can scrape the magnetite powder attached to the surface of the magnetic separator drum into the concentrate tank, which can greatly reduce the loss of concentrate in tailings, improve the recovery rate of the magnetic separator, and increase the economic benefits of magnetite ore dressing plants.

[0004] The technical solution to solve the above technical problem is:

[0005] An ore unloading device that can improve the concentrate recovery rate of a magnetic separator, which includes a scraper, a scraper support, fixing bolts, a base, a pin shaft, and a tension spring. The scraper is a rectangular plate. The scraper support consists of a fixing plate and two support arms. The fixing plate is a rectangular plate, and the length of the fixing plate matches the length of the scraper. A plurality of bolt holes are evenly distributed along the length direction on the plate surface of the fixing plate. There are corresponding mounting holes on the lower edge of the scraper corresponding to the fixing plate. The fixing bolts fixedly connect the scraper and the fixing plate through the bolt holes and the mounting holes. There are downward support arms at both ends of the fixing plate. There are transverse shaft holes at the lower ends of the support arms. The base is a triangular plate. There are pin holes at the upper parts of the two bases, and the aperture of the pin holes matches the shaft holes at the lower ends of the support arms. The two pin shafts connect the base and the lower ends of the two support arms in a rotational manner through the pin holes and the shaft holes. The two bases are fixedly connected to the frame of the magnetic separator tank. There are corresponding spring connection holes at the front ends of the two bases and at both ends of the fixing plate of the scraper support. The two ends of the two tension springs are respectively connected to the spring connection holes at both ends of the two bases and the fixing plate of the scraper support.

[0006] The ore unloading device capable of improving the concentrate recovery rate of the magnetic separator, wherein the scraper is a rectangular rubber plate, and the mounting holes of the scraper are long holes, and the direction of the long holes is perpendicular to the length direction of the scraper.

[0007] The ore unloading device capable of improving the concentrate recovery rate of the magnetic separator, wherein the outer ends of the pins connecting the upper ends of the two bases to the support arms of the scraper bracket are respectively locked and connected with a retaining piece and a split pin, and the lower parts of the two bases are respectively provided with fixing holes, and bolts pass through the fixing holes to fixedly connect the two bases with the tank body frame of the magnetic separator.

[0008] The beneficial effects of the present utility model are:

[0009] The two bases of the present utility model are fixed on the side plates of the tank body on both sides of the concentrate discharge end of the magnetic separator, and the front end of the rubber scraper overlaps on the surface of the roller. When the roller rotates, the scraper can scrape the magnetite powder attached to the surface of the roller into the concentrate tank; the scraper is connected to the fixing plate of the scraper bracket through long holes, which is convenient for adjusting the position of the scraper; the support arm of the scraper bracket is rotatably connected to the base through a pin shaft, and a tension spring is connected between the scraper bracket and the base, so that the scraper on the scraper bracket can be kept in close contact with the magnetic separator roller.

[0010] The structure of the present utility model is simple and convenient to use. The operator can adjust the ore unloading of the magnetic separator at any time, improve the ore unloading efficiency of the magnetic separator, greatly reduce the loss of concentrate in the tailings, improve the recovery rate of the magnetic separator, and increase the economic benefits of the enterprise. Description of the Drawings

[0011] Figure 1 is a schematic structural view of the present utility model;

[0012] Figure 2 is Figure 1 the side view of

[0013] The reference numerals in the figure are as follows: magnetic separator cylinder body 1, scraper 2, scraper bracket 3, fixing bolt 4, base 5, pin shaft 6, tension spring 7, fixing plate 8, support arm 9, fixing hole 10, retaining piece 11, split pin 12. Detailed Description of the Invention

[0014] The present utility model is composed of a scraper 2, a scraper bracket 3, a fixing bolt 4, a base 5, a pin shaft 6, a tension spring 7, a retaining piece 11, and a split pin 12.

[0015] As shown in the figure, the scraper 2 is a rectangular rubber plate. A plurality of mounting holes are evenly distributed along the length direction at the lower end of the plate surface of the scraper 2. The mounting holes of the scraper 2 are long holes, and the direction of the long holes is perpendicular to the length direction of the scraper 2. The scraper 2 is connected to the scraper bracket 3 through the long holes, which is convenient for adjusting the position of the scraper 2.

[0016] As shown in the figure, the scraper support 3 is composed of a fixing plate 8 and two support arms 9.

[0017] The fixing plate 8 is a rectangular plate. The length of the fixing plate 8 matches the length of the scraper 2. A plurality of bolt holes are evenly distributed along the length direction on the plate surface of the fixing plate 8. The bolt holes correspond to a plurality of mounting holes on the lower edge of the scraper 2. The fixing bolts 4 fixedly connect the scraper 2 and the fixing plate 8 through the bolt holes and the mounting holes.

[0018] There are downward support arms 9 at both ends of the fixing plate 8. There are transverse shaft holes at the lower ends of the support arms 9. The two support arms 9 are respectively connected to the base 5 through the pin shafts 6.

[0019] As shown in the figure, the base 5 is a triangular plate. There are pin holes at the upper parts of the two bases 5. The aperture of the pin holes matches the shaft holes at the lower ends of the support arms 9. The two pin shafts 6 rotatably connect the base 5 and the lower ends of the two support arms 9 through the pin holes and the shaft holes. There are retaining plates 11 and split pins 12 at the outer ends of the pin shafts for locking connection. There are fixing holes 10 at the lower parts of the two bases 5. Bolts fixedly connect the two bases 5 and the tank body frame of the magnetic separator through the fixing holes 10.

[0020] As shown in the figure, there are corresponding spring connection holes at the front ends of the two bases 5 and at both ends of the fixing plate 8 of the scraper support 3. The two ends of the two tension springs 7 are respectively connected to the spring connection holes at both ends of the two bases 5 and the fixing plate 8 of the scraper support 3. The tension spring 7 can keep the scraper 2 on the scraper support 3 in a tightly attached state to the magnetic separator drum 1.

[0021] The usage method of the present utility model is as follows:

[0022] The two sides of the base of the present utility model are fixed on the side plates of the tank body at both sides of the concentrate discharge end of the magnetic separator. The front end of the silicone rubber scraper 2 overlaps on the surface of the magnetic separator drum 1. During the operation of the magnetic separator, the tension spring 7 can keep the scraper 2 in a tightly attached state to the magnetic separator drum 1. When the magnetic separator drum 1 rotates, the scraper 2 can scrape the magnetite powder attached to the surface of the magnetic separator drum 1 into the concentrate tank, greatly reducing the loss of concentrate in the tailings, improving the recovery rate of the magnetic separator, successfully solving the problems of difficult discharging and low recovery rate of the original magnetic separator, and increasing the economic benefits of the concentrator.

[0023] An embodiment of the present utility model is as follows:

[0024] Using CTB1021 magnetic separator

[0025] The scraper 2 is made of silicone rubber, with a length of 2100 mm, a width of 100 mm, and a thickness of 20 mm;

[0026] The length of the fixing plate 8 of the scraper support 3 is 2100 mm, the width is 100 mm, and the thickness is 10 mm. The length of the support arm 9 is 2100 mm, the width is 50 mm, and the thickness is 10 mm;

[0027] The diameter of the fixing bolt 4 is 12 mm and the length is 50 mm;

[0028] The length of the base 5 is 120 mm, the width is 60 mm, and the thickness is 20 mm;

[0029] The diameter of the pin shaft 6 is 30 mm and the length is 50 mm;

[0030] The diameter of the tension spring 7 is 20 mm and the length is 50 mm.

Claims

1. An unloading device capable of improving the concentrate recovery rate of a magnetic separator, characterized in that: It comprises a scraper (2), a scraper bracket (3), a fixing bolt (4), a base (5), a pin (6), and a tension spring (7). The scraper (2) is a rectangular plate. The scraper bracket (3) is composed of a fixing plate (8) and two support arms (9). The fixing plate (8) is a rectangular plate. The length of the fixing plate (8) matches the length of the scraper (2). A plurality of bolt holes are evenly distributed on the plate surface of the fixing plate (8) along the length direction. The lower edge of the scraper (2) has a plurality of mounting holes corresponding to the bolt holes of the fixing plate (8). The fixing bolt (4) fixes the scraper (2) and the fixing plate (8) through the bolt holes and the mounting holes. The fixing plate (8) has downwardly extending bolts at both ends. The support arm (9) has a transverse shaft hole at the lower end of the support arm (9), the base (5) is a triangular plate, the upper parts of the two bases (5) have pin holes respectively, the apertures of the pin holes match the shaft holes at the lower ends of the support arms (9), the two pin shafts (6) rotatably connect the two bases (5) and the lower ends of the two support arms (9) through the pin holes and the shaft holes, the two bases (5) are fixedly connected to the magnetic separator tank frame, the front ends of the two bases (5) and the two ends of the fixed plate (8) of the scraper bracket (3) have corresponding spring connection holes respectively, and the two ends of the two tension springs (7) are respectively connected to the spring connection holes at the two ends of the two bases (5) and the fixed plate (8) of the scraper bracket (3).

2. The ore unloading device capable of improving the concentrate recovery rate of the magnetic separator according to claim 1 is characterized in that: The scraper (2) is a rectangular rubber plate, the mounting hole of the scraper (2) is a long hole, and the direction of the long hole is perpendicular to the length direction of the scraper (2).

3. The ore unloading device capable of improving the concentrate recovery rate of the magnetic separator according to claim 1 is characterized in that: The outer ends of the pin shafts (6) connected to the support arms (9) of the scraper bracket (3) at the upper ends of the two bases (5) are respectively provided with baffles (11) and cotter pins (12) for locking connection, and the lower parts of the two bases (5) are respectively provided with fixing holes (10), and bolts are passed through the fixing holes (10) to fix the two bases (5) to the tank frame of the magnetic separator.

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