Column type short flow reverse floatation process and apparatus for hematite

A short-process, reverse flotation technology, applied in flotation, magnetic separation, solid separation, etc., can solve the problems of high operating costs, large power consumption, and large maintenance, and achieve low operating costs and low power consumption , small floor space and maintenance

Inactive Publication Date: 2007-05-23
CHINA UNIV OF MINING & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The characteristics of this process are: long process, many equipments, large power consumption, large investment, large amount of maintenance and high operating costs

Method used

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  • Column type short flow reverse floatation process and apparatus for hematite
  • Column type short flow reverse floatation process and apparatus for hematite

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Embodiment Construction

[0016] An embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0017] As shown in Figures 1 and 2, the hematite column type short-flow reverse flotation process of the present invention first feeds the raw ore B and the flotation agent A into the pulp mixing tank 1 together, and proceeds through the impeller in the pulp mixing tank 1 Stirring, the stirring time is 10-15 minutes, and the mass percent concentration of the flotation feed material formed by the stirring is 35%-45%. The flotation feed material flows from the pulp mixing tank 1 to the rougher flotation column 2, and is roughed under the action of the bubble generator 4 and the circulation pump 5, and the rougher concentrate D is discharged from the bottom outlet 3 of the rougher flotation column , the concentrate is a qualified hematite concentrate product; the foam in the upper layer of the roughing flotation column 2 is transported to the scavenging flotat...

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Abstract

The invention relates to a bloodstone post-type shortened reverse-flotation selecting method and relative device, wherein it has two systems arranged from high to low, while each one is formed by cyclone-static micro foam selecting post, slurry mixing cylinder, buffer pool, and concentrate magnetic selector; it adds material mine and flotation drug into slurry mixing cylinder to be mixed; adds the material into rough flotation post; the bottom of rough flotation post discharges the qualified bloodstone finished ore product, and the upper foam at the rough floatation post via foam absorber is absorbed into the scavenger floatation post to be scavenged; and the bottom of said scavenger floatation post discharges ore into buffer pool, while its upper foam is the final debris product; the middle ore of buffer pool, via middle ore pump is transmitted to the concentrate magnetic selector to be selected, and the finished ore will be fed back to the mixing cylinder, to be mixed with material and selected again. The invention has simple process and low cost.

Description

technical field [0001] The invention relates to a fine-grain mineral separation process, in particular to a column-type short-flow reverse flotation process suitable for hematite separation based on rough sweeping integration. technical background [0002] Iron concentrate is the basic raw material for the iron and steel industry. Therefore, changes in the total demand for iron and steel will directly affect the iron ore concentrate market. With the rapid development of my country's national economy, the demand for iron and steel continues to increase, and the shortage of iron concentrates has become increasingly prominent. According to preliminary calculations, domestic steel consumption in 2010 was about 320 million tons, so major steel mills have expanded capacity and increased production to meet market demand. [0003] Over the years, my country's iron ore mining enterprises mainly process and sort magnetite (green ore). With the gradual depl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00B03D1/02B03D1/14B03C1/02B03D103/04
Inventor 刘炯天王永田张海军
Owner CHINA UNIV OF MINING & TECH
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