CN201437098U - Oil-cooled turntable high-gradient magnetic separator magnetic system - Google Patents

Abstract

A magnetic system of an oil-cooled turntable high-gradient magnetic separator includes an excitation coil, an iron core, upper and lower magnetic pole heads, upper and lower magnetic yokes, and an oil circulation cooling device; the iron core is a pure iron square iron core, the iron core is vertically arranged, the upper and lower end faces of the iron core are respectively connected to one end of the upper and lower magnetic yokes, the other ends of the upper and lower magnetic yokes are respectively connected to the upper and lower magnetic pole heads, and an air gap is left between the upper and lower magnetic pole heads for the separation turntable to pass through, and the iron core, the upper and lower magnetic yokes and the upper and lower magnetic pole heads constitute a "C-type" magnetic system; the excitation coil is installed in a fully sealed oil tank with a square hole in the center, the iron core of the magnetic system passes through the square hole and is connected to the upper and lower magnetic yokes, and the oil tank is connected to the oil circulation cooling device through an oil pipeline; the excitation coil of the magnetic system is wound with aluminum flat wire. The magnetic system has a simple manufacturing process, small excitation power, low energy consumption, low cost of electric control cabinet, stable magnetic field, good separation effect, and can realize continuous mineral separation.

Description

Magnetic system of an oil-cooled turntable high-gradient magnetic separator

【Technical field】

The utility model relates to a component of metal mineral magnetic separation equipment, in particular to a magnetic system of an oil-cooled turntable high-gradient magnetic separation machine.

【Background technique】

At present, the general domestic magnetic separator can only select minerals with a particle size of +200 mesh (0.074mm), and cannot separate a large number of fine-grained and weakly magnetic minerals. High-gradient magnetic separation that can select such minerals Generally, most machines are ironless magnetic separators. The separation area of ironless magnetic separators is located in the center of the coil. It is inconvenient to move the separation box in and out, so it is not easy to realize continuous mineral separation. Some magnetic separators use saddle-shaped coils, and the sorting ring passes under the saddle-shaped coils. Although the problem of continuous mineral separation has been solved, this type of magnetic separator has the following disadvantages: the excitation coil is wound by a hollow square soft copper tube. , and bend the coil shape into a saddle shape, the sorting turntable passes through the saddle coil, the coil is passed through a large current, and the copper tube is fed with circulating cold water to dissipate heat, and the outside is wrapped with a thick iron plate to prevent magnetic flux leakage. The energy consumption is large, and this kind of production method consumes materials, the process is complicated, the production is difficult, and the cost is high, and a large amount of water resources need to be wasted for cooling.

【Content of utility model】

The technical problem to be solved by the utility model is to provide a magnetic system of an oil-cooled turntable high-gradient magnetic separator with simple structure, convenient manufacture, low energy consumption and good cooling effect, so as to overcome the shortcomings of the above-mentioned prior art.

The technical solution to the above problems is: a magnetic system of an oil-cooled turntable high-gradient magnetic separator, including an excitation coil, an iron core, an upper and lower magnetic yoke, and an upper and lower magnetic pole head. The iron core is a square iron core of pure iron. The iron core is vertically arranged, the upper and lower ends of the iron core are respectively connected to one end of the upper and lower magnetic yokes, and the other ends of the upper and lower magnetic yokes are respectively connected to the opposite upper and lower magnetic pole heads, and there is an air gap for the sorting turntable to pass between the upper and lower magnetic pole heads. The iron core, the upper and lower yokes and the upper and lower magnetic pole heads constitute a "C-shaped" magnetic system; the excitation coil is installed in a fully sealed oil tank with a square hole in the center, and the iron core of the magnetic system passes through the square hole of the oil tank Connected with the upper and lower yokes, the oil tank is filled with transformer oil, and the oil tank is connected with the oil circulation cooling device through pipelines.

Its further technical solution is: the oil circulation cooling device includes an oil-water cooler and a cooling tower, the oil-water cooler is mainly composed of a spiral heat exchanger, a pipeline oil pump and a regulating valve, and the oil tank passes through the oil outlet pipe and the oil inlet pipe It is connected with the spiral heat exchanger, and the spiral heat exchanger is connected with the cooling tower through the water outlet pipe and the water inlet pipe.

Its further technical solution is: the excitation coil of the magnetic system is wound with aluminum flat wire.

Due to the above-mentioned structure, the magnetic system of the oil-cooled turntable high-gradient magnetic separator of the utility model has the following beneficial effects:

1. The magnetic system of the oil-cooled turntable high-gradient magnetic separator of this utility model moves the sorting area to the outside of the coil through the upper and lower yokes, which is beneficial to realize continuous production. The excitation coil is wound with aluminum flat wire, and the winding of the coil is The process is simple, the material cost is low, the excitation current is small, and the excitation power is small, so the energy consumption is low, and the cost of the electric control cabinet and the magnetic system is low.

2. Since the excitation coil is installed in the oil tank, the whole coil is immersed in the circulating cooling transformer oil, so that the coil can always maintain a suitable temperature, so that the magnetic field of the magnetic system is stable, the sorting effect is good, and it can save a lot of water resources .

The technical features of the magnetic system of the oil-cooled turntable high-gradient magnetic separator of the present invention will be further described in conjunction with the accompanying drawings and embodiments:

【Description of drawings】

Figure 1: Schematic diagram of the magnetic system structure of the oil-cooled turntable high-gradient magnetic separator of the utility model;

In the figure: magnetic system A (with sorting turntable D), oil-water cooler B, cooling tower E;

1-frame, 2-lower yoke, 3-lower magnetic pole head, 4-upper magnetic pole head, 5-upper magnetic yoke, 6-iron core, 7-excitation coil,

8-oil tank, 91-oil inlet pipe of spiral heat exchanger, 92-oil outlet pipe of spiral heat exchanger, 10-regulating valve, 11-spiral heat exchanger, 12-pressurized water pump, 131-outlet pipe, 132-water inlet pipe, 14-pipeline oil pump.

【Detailed ways】

A magnetic system of an oil-cooled turntable high-gradient magnetic separator, including an excitation coil, an iron core, an upper and lower yoke, an upper and lower magnetic pole head, and an oil circulation cooling device. The iron core 6 is a pure iron square iron core, and the iron core 6 is a square iron core. The core is arranged vertically, and the upper and lower ends of the iron core are respectively connected with one end of the upper magnetic yoke 5 and the lower magnetic yoke 2, and the other ends of the upper and lower magnetic yokes are respectively connected with the opposite upper magnetic pole head 4 and the lower magnetic pole head 3, leaving space between the upper and lower magnetic pole heads. There is an air gap through which the sorting turntable passes, and the iron core, the upper and lower yokes and the upper and lower magnetic pole heads form a "C-shaped" magnetic system; the excitation coil 7 is installed in a fully sealed oil tank 8 with a square hole in the center, The iron core 6 of the magnetic system is connected to the upper and lower yokes through a square hole. The oil tank is filled with transformer oil, and the oil tank is connected to the oil circulation cooling device through the oil pipeline. The oil tank 8 is installed with an insulating porcelain bottle for leading out the wiring of the excitation coil.

The oil circulation cooling device includes an oil-water cooler B and a cooling tower E. The oil-water cooler is mainly composed of a spiral heat exchanger 11, a pipeline oil pump 14 and a regulating valve 10; the oil tank 8 passes through the spiral heat exchanger. The oil inlet pipe 91 and the oil outlet pipe 92 are connected with the spiral heat exchanger 11 , and the water outlet pipe 131 and the water inlet pipe 132 of the spiral heat exchanger 11 are connected with the cooling tower D.

A pressurized water pump 12 is installed on the water inlet pipe 132 communicating between the spiral heat exchanger 11 and the cooling tower D.

The excitation coil 7 of the magnetic system is wound with aluminum flat wire.

The above-mentioned embodiment is a preferred implementation mode, but the technical solution of the present utility model is not limited to the above-mentioned embodiment, as the conversion of the above-mentioned embodiment: the excitation coil of the magnetic system can also be wound with copper flat wire, but the cost is lower than that of aluminum Flat line high.

Claims (4)

1. A magnetic system of an oil-cooled turntable high-gradient magnetic separator, comprising an excitation coil, an iron core, an upper and lower magnetic yoke and an upper and lower magnetic pole head; it is characterized in that: the described iron core (6) is a pure iron square iron core, The iron core is arranged vertically, the upper and lower ends of the iron core are respectively connected with one end of the upper magnetic yoke (5) and the lower magnetic yoke (2), and the other ends of the upper and lower magnetic yoke are respectively connected with the opposite upper magnetic pole head (4) and the lower magnetic pole head (3) ) are connected, and there is an air gap through which the sorting turntable passes between the upper and lower magnetic pole heads. The iron core, the upper and lower magnetic yokes and the upper and lower magnetic pole heads form a "C-type" magnetic system; the excitation coil (7) is installed in a central open In the fully sealed oil tank (8) with square holes, the iron core (6) of the magnetic system passes through the square holes of the oil tank to be connected with the upper and lower magnetic yokes, and the oil tank (8) is communicated with the oil circulation cooling device through the oil pipeline. 2. A magnetic system of an oil-cooled turntable high-gradient magnetic separator according to claim 1, characterized in that: said oil circulation cooling device comprises an oil-water cooler (B) and a cooling tower (E), said The oil-water cooler (B) is mainly composed of a spiral heat exchanger (11), a pipeline oil pump (14) and a regulating valve (10). The oil tank (8) passes through the oil inlet pipe (91) and the oil outlet pipe of the spiral heat exchanger. (92) is communicated with the spiral heat exchanger (11), and the outlet pipe (131) and the water inlet pipe (132) of the spiral heat exchanger (11) are communicated with the cooling tower (E). 3. The magnetic system of an oil-cooled turntable high-gradient magnetic separator according to claim 2, characterized in that: the water inlet pipe connecting the spiral heat exchanger (11) with the cooling tower (E) is installed with Pressurized water pump (12). 4. The magnetic system of an oil-cooled turntable high-gradient magnetic separator according to claim 1, 2 or 3, characterized in that: the excitation coil (7) of the magnetic system is wound with aluminum flat wire.

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