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Iron tailing dry separation system

A technology of dry separation of iron tailings, applied in the directions of magnetic separation, solid separation, filtration, etc., which can solve the problems of environmental pollution, low grade, land occupation, etc., and achieve the effect of reducing environmental hazards and realizing the comprehensive utilization of resources

Inactive Publication Date: 2015-09-16
MAANSHAN NANSHAN DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large amount of iron ore is needed in the steelmaking process. Domestic iron ore raw materials are relatively abundant, but the grade is relatively low, and a large amount of low-grade ore is produced during the mining process; at the same time, a large amount of iron tailings will also be produced during the iron ore beneficiation process mine
A large number of iron tailings not only occupy land, but also pollute the environment, causing safety hazards in tailings mining areas

Method used

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  • Iron tailing dry separation system
  • Iron tailing dry separation system

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Embodiment Construction

[0011] Such as figure 1 , 2 As shown, a dry separation system for iron tailings includes jaw crusher one 1, bar feeder 2, cone crusher one 3, jaw crusher two 4, cone crusher two 5, and three layers of vibration Sieve 6, plate dry separator 7 and magnetic pulley 8. During production, large pieces of iron tailings enter PE600×900 jaw crusher-1 for coarse crushing, and the coarsely crushed products are fed into the rod feeder 2 Carry out pre-screening, screen out qualified products, the sieved product of rod feeder 2 is fed into jaw crusher 2 4, the crushed product of jaw crusher 2 4 and the product under the screen of rod feeder 2 are fed together Enter the three-layer vibrating screen 6 (wherein the upper layer of the polyurethane screen is 30×30mm, and the lower layer is 12×25mm), and the product on the upper screen of the three-layer vibrating screen 6 is fed into the above-mentioned cone crusher-3 for intermediate crushing, and the intermediate crushing product Then feed t...

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Abstract

The invention discloses an iron tailing dry separation system. Products coarsely crushed by a jaw crusher I are fed into a grizzly feeder to be pre-screened, qualified products are sieved out, oversize products of the grizzly feeder are fed into a jaw crusher II, crushed products of the jaw crusher II and undersize products of the grizzly feeder are fed into a three-layer vibrating screen together, the oversize products on an upper-layer screen of the three-layer vibrating screen are fed into a cone crusher I to be secondarily crushed, secondarily crushed products are fed into the three-layer vibrating screen, the oversize products on a lower-layer screen of the three-layer vibrating screen are subjected to dry separation by a magnetic pulley, rough concentrates after dry separation of the magnetic pulley are fed into a cone crusher II to be crushed finely, and the crushed products are returned into the three-layer vibrating screen to form closed-circuit crushing screening. The iron tailing dry separation system is simple and practical, the new strong-magnetic plate-type dry separation machine can effectively extract iron in iron tailing, ore sand size grading is realized, use in the follow-up procedures is convenient, the iron tailing can be comprehensively utilized, the comprehensive utilization of resources is realized and the damage of the iron tailing to the environment is reduced.

Description

technical field [0001] The invention relates to the technical field of comprehensive utilization of iron tailings resources, in particular to an iron tailings dry separation system suitable for extracting iron concentrates from iron tailings and classifying ore sand. Background technique [0002] Steel is an indispensable material in industrial development, and the demand is huge. At the same time, China is also the world's largest steel producer. A large amount of iron ore is needed in the steelmaking process. Domestic iron ore raw materials are relatively abundant, but the grade is relatively low, and a large amount of low-grade ore is produced during the mining process; at the same time, a large amount of iron tailings will also be produced during the iron ore beneficiation process mine. A large number of iron tailings not only occupy land, but also pollute the environment, causing potential safety hazards in tailings mining areas. At the same time, iron tailings al...

Claims

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Application Information

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IPC IPC(8): B02C1/02B02C2/00B07B1/28B03C1/30
Inventor 刘文胜胡迅费文坤陈华彬杨小江
Owner MAANSHAN NANSHAN DEV
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