CN2666558Y - Magnetic separator - Google Patents

Abstract

A new type of magnetic separation column, relating to the field of magnetite ore beneficiation equipment, including an ore feeding hopper, an ore feeding pipe arranged on the ore feeding hopper, an overflow tank, a sorting cylinder, a tangential water supply pipe, a concentrate discharge pipe and a control valve 1. An electric control device connected to the magnetic system of the excitation coil, characterized in that a group of excitation coils connected with the magnetic system of the excitation coil is set at the lower part of the tangential water supply pipe, and a water return plate is set at the lower part of the ore hopper to return water The plate is connected with the water supply pipe installed on the upper part of the equipment. Concentration sensors and control valves are installed on the ore supply pipe and the ore discharge pipe. The PLC industrial controller is connected with the concentration sensor, control valve and The actuator is connected. The utility model has the advantages of significantly increasing the processing capacity and improving the separation effect; the adoption of the automatic control feeding and discharging device not only makes the equipment work stably and reliably, the concentrate grade is adjustable, and the operation is convenient. The purpose of improving the amount of ore and the grade of concentrate is also to reduce the labor intensity of workers.

Description

A new type of magnetic separation column

technical field

The utility model belongs to the field of magnetite ore beneficiation equipment, in particular to a novel magnetic separation column.

Background technique

At present, the existing equipment for magnetite separation at home and abroad includes simple magnetic separator, magnetic dehydration tank, magnetic rotary machine, magnetic concentrator, magnetic separation column, etc. Drum magnetic separators and magnetic dehydration tanks can be used for roughing of magnetite; they can also be used for beneficiation of magnetite, but it is difficult to obtain high-grade concentrates in production practice. In order to obtain high-grade concentrates by magnetic separation, people have developed magnetic separation machines, magnetic concentrators, magnetic separation columns and other selection equipment. Chinese patent ZL93228152.4 discloses an electromagnetic low-weak magnetic field magnetic gravity separation equipment. Although this equipment solves the problem of magnetic and non-magnetic inclusions caused by magnetic agglomeration of ordinary magnetic separator concentrates, and obviously improves the grade of concentrates, it still has the following shortcomings: First, the discharge of concentrates is not enough The processing capacity is low; the second is that the dispersion degree of the pulp is not enough when it enters the sorting space, which affects the separation effect; the third is to manually control the concentration of ore feeding and discharging, and the operator needs to adjust the concentration of feeding and discharging on the equipment. , not only the labor intensity of the workers is high, the operation is difficult, but the indicators are also unstable.

Contents of the invention

The purpose of the utility model is to provide a new type of magnetic separation column with larger processing capacity and better separation effect.

Another purpose of this utility model is to provide a new type of magnetic separation column that can stably control the concentration of ore feeding and discharging, and is easy to operate.

According to a new type of magnetic separation column of the present invention, it includes a feeding hopper, a feeding pipe, an overflow tank, a sorting cylinder, a tangential water supply pipe, a concentrate discharge pipe and a control valve arranged on the feeding hopper, and The electric control device connected with the magnetic system of the exciting coil is characterized in that a group of exciting coils connected with the magnetic system of the exciting coil is arranged at the lower part of the tangential water supply pipe.

According to the novel magnetic separation column of the present utility model, a return water tray is provided at the lower part of the ore feeding hopper, and the return water tray communicates with the water supply pipe arranged at the upper part of the equipment. An additional water pipe is arranged at the center of the magnetic separation column at the lower part of the tangential water supply pipe.

Another main point of the utility model is that a concentration sensor and a control valve are provided on the water supply pipe and the mine discharge pipe, and the PLC industrial controller is connected with the concentration sensor, the control valve and the actuator on the mine supply pipe and the mine discharge pipe respectively. Connected to form an automatic control device for the concentration of ore feeding and discharging of the magnetic separation column.

The utility model has the advantages that, due to the adoption of the above-mentioned structure, the setting of the excitation coil at the lower part of the tangential water supply pipe successfully makes the concentrate quickly pass through the rising water flow area, which significantly increases the processing capacity; The degree of dispersion improves the separation effect; the adoption of automatic control of ore feeding and ore discharge concentration devices makes the equipment work stably and reliably, the concentrate grade is adjustable, and the operation is convenient, which not only reduces the labor intensity of workers, but also achieves the goal of controlling the feeding Mining purposes.

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

Referring to accompanying drawing 1, a new type of magnetic separation column of the utility model includes a feeding pipe 1 arranged on the feeding bucket 2, an overflow tank 3, a sorting cylinder 4, a tangential water supply pipe 7, and a concentrate The ore discharge pipe 11, the control valve, and the electric control device 14 connected to the magnetic system 6 of the excitation coil are characterized in that a group of excitation coils 8 connected to the magnetic system 6 of the excitation coil are set at the lower part of the tangential water supply pipe 7. The excitation coil 8 can make the concentrated ore quickly pass through the rising water flow area and enter the falling water flow area, which has the effect of increasing the processing capacity. The utility model is provided with a return water tray 5 at the lower part of the ore hopper 2, and the return water tray 5 is connected with the water supply pipe 9 arranged on the upper part of the equipment. The purpose of mine, improve the sorting effect. The utility model establishes a supplementary water pipe 16 at the center of the magnetic separation column at the bottom of the tangential water supply pipe 7 . Its purpose is to make up for the deficiency that the rising water velocity in the central area of the magnetic separation column is relatively low compared with the surrounding area.

In order to solve the problem of unstable working state of the magnetic separation column caused by manual operation, the utility model is provided with a concentration sensor 10 and a control valve 12 on the water supply pipe 1 and the ore discharge pipe 11, and the PLC industrial controller 15 communicates with the supply pipe respectively. The mine pipe 1 is connected with the concentration sensor 10, the control valve 12 and the actuator 13 on the mine discharge pipe 11.

When the PLC industrial controller 15 entered the control function, the sensor 10 continuously tested the concentration value and passed it to the PLC industrial controller 15. The concentration value is compared, and the control signal is output after calculation, and the opening size of the control valve is adjusted through the actuator. The function of adjusting the opening of the ore pipe control valve is to control the concentration of ore to control the amount of ore to be fed. The function of the adjustment of the opening of the control valve for concentrate ore discharge is to control the concentration of ore discharge to control the grade of concentrate, thus realizing the production of magnetic separation column Automatic control of the operating process.

Claims (4)

1. A new type of magnetic separation column, including the ore hopper, the ore feeding pipe, the overflow tank, the separation cylinder, the tangential water supply pipe, the concentrate discharge pipe and the control valve, and the excitation coil magnet. The electronic control device connected with the system is characterized in that a group of excitation coils connected with the magnetic system of the excitation coil is arranged at the lower part of the tangential water supply pipe. 2. The new type of magnetic separation column according to claim 1, characterized in that a return water tray is provided at the lower part of the ore feeding hopper, and the return water tray is connected with the water supply pipe arranged at the upper part of the equipment. 3. The novel magnetic separation column according to claim 1, characterized in that a supplementary water pipe is provided in the center of the magnetic separation column at the lower part of the tangential water supply pipe. 4. The new magnetic separation column according to claim 1 or 2, characterized in that a concentration sensor and a control valve are provided on the water supply pipe and the ore discharge pipe, and the PLC industrial controller is connected with the ore supply pipe and the ore discharge pipe respectively. The concentration sensor on the pipe, the control valve and the actuator are connected.

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