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Circular table magnetic separation column and iron concentrate sorting method based on circular table magnetic separation column

A magnetic separation column and separation technology, which is applied in the field of round table magnetic separation column and iron concentrate separation, can solve the problems of disturbed separation process, turbulent flow, high grade tailings of variable diameter magnetic separation column, etc., and achieve improved separation High efficiency, lower tailings grade, good sorting effect

Pending Publication Date: 2019-03-22
UNIV OF SCI & TECH LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the result of adopting variable-diameter magnetic separation columns is that there will be turbulent flow at the position where the upper separation cylinder D1 and the lower separation cylinder D2 are connected due to the variable diameter. If turbulent flow occurs, the separation process will be disturbed, so that the variable-diameter magnetic The grade of the tailings of the selection column is high

Method used

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  • Circular table magnetic separation column and iron concentrate sorting method based on circular table magnetic separation column

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Embodiment 1

[0030] In this embodiment, the magnetite ore that needs to be separated is the magnetic separation concentrate obtained through two-stage magnetic separation, the grade is 61.05%, and it is separated by using a circular table magnetic separation column. The process is as follows:

[0031] Set the working parameters of the round table magnetic separation column: start the electromagnetic control system of the round table magnetic separation column, set the fixed current 2A, the circulating current 4A, the cycle time of one cycle is 6s, the concentration of ore is 40%, the opening of the water supply valve is 80%, the concentrate The electric valve 10 opening degree on the discharge pipe 9 is 50%. Start the round table magnetic separation column, the concentrate is discharged from the concentrate discharge pipe 9 at the bottom of the round table magnetic separation column to become the concentrate product of the magnetic separation column, and the tailings are discharged from the...

Embodiment 2

[0034] In this embodiment, the magnetite ore that needs to be separated is the magnetic separation concentrate obtained through magnetic separation, and the grade is 64.25%. It is separated by a circular table magnetic separation column, and the process is as follows:

[0035] Set the working parameters of the round table magnetic separation column: start the electromagnetic control system of the round table magnetic separation column, set a fixed current of 1.5A, a circulating current of 8A, a cycle time of 7s, a feeding concentration of 55%, a water supply valve opening of 70%, and a precision The opening of the electric valve on the mine discharge pipe is 60%. Start the round table magnetic separation column, the concentrate is discharged from the concentrate discharge pipe 9 at the bottom of the round table magnetic separation column to become the concentrate product of the magnetic separation column, and the tailings are discharged from the tailings discharge pipe 11 on th...

Embodiment 3

[0038] In this embodiment, the magnetite ore that needs to be sorted is obtained through magnetic separation, and the grade is 63.52%. It is sorted by a circular table magnetic separation column, and the process is as follows:

[0039] Set the working parameters of the round table magnetic separation column: start the electromagnetic control system of the round table magnetic separation column, set a fixed current of 3A, a circulating current of 10A, a cycle time of 8s, a feeding concentration of 45%, a water supply valve opening of 70%, and concentrate discharge The electric valve opening on the pipe is 55%. Start the round table magnetic separation column, the concentrate is discharged from the concentrate discharge pipe 9 at the bottom of the round table magnetic separation column to become the concentrate product of the magnetic separation column, and the tailings are discharged from the tailings discharge pipe 11 on the upper part of the round table magnetic separation col...

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Abstract

The invention relates to a circular table magnetic separation column and an iron concentrate sorting method based on the circular table magnetic separation column. The circular table magnetic separation column comprises a magnetic separation column body composed of an ore feeding pipe, a tailings discharging pipe, a sorting column, an electromagnetic system, a water feeding pipe, a concentrate discharging pipe and an electromagnetic control system. The sorting column is a circular-table-shaped sorting column, the top diameter of the sorting column is larger than the bottom end diameter, and the included angle between the side face of the sorting column and the horizontal plane ranges from 60 degrees to 90 degrees. A plurality of circles of magnet exciting coils are arranged on the outer side of the circular-table-shaped sorting column in the height direction. According to the circular table magnetic separation column and the iron concentrate sorting method based on the circular table magnetic separation column, the sorting area is gradually enlarged from bottom to top, the purposes of gradual increasing of the circular table magnetic separation column scavenging function and improving the sorting effect are achieved, the problem about running black is effectively solved, the sorting efficiency is improved, and efficient magnetic iron ore sorting is achieved.

Description

technical field [0001] The invention relates to the technical field of mineral separation, in particular to a circular table magnetic separation column and an iron concentrate separation method based on it. Background technique [0002] Magnetic separation column is an electromagnetic pulsating low-weak magnetic field magnetic gravity separation equipment, which has been widely used in dozens of magnetite ore processing plants across the country in recent years. The production practice has proved that the magnetic separation column can effectively remove the single gangue and intergrowth in the magnetic agglomeration, and obtain high-grade iron concentrate (some iron concentrate grade can reach more than 70%), which provides the magnetite ore concentrator with Contributions have been made to iron-silicon-reducing engineering and beneficiation technology, creating greater economic benefits. Generally speaking, the magnetic separation column is an efficient magnetite benefici...

Claims

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Application Information

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IPC IPC(8): B03C1/23
CPCB03C1/23
Inventor 侯英谢冬冬任国臣赵明陶东平吴中贤王恩雷靳达
Owner UNIV OF SCI & TECH LIAONING
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