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New process for concentrating and dehydrating iron concentrate

A technology for concentrating and dehydrating iron ore concentrates, applied in the direction of filtration and separation, separation methods, chemical instruments and methods, etc., can solve the problems of increasing the cost of pumps and pipelines, increasing the concentration process, and complicated processes, so as to reduce the number of pumps and pipelines and maintenance costs, process simplification, and the effect of reducing process links

Inactive Publication Date: 2012-08-01
ANSTEEL GRP MINING CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this process, the clarified filter filtrate and filter overflow are mixed together, which increases the concentration process, complicates the process, and increases the cost of pumps and pipelines

Method used

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  • New process for concentrating and dehydrating iron concentrate
  • New process for concentrating and dehydrating iron concentrate

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Embodiment Construction

[0012] The specific implementation manner of the present invention will be further described below in conjunction with the accompanying drawings.

[0013] Such as figure 1 Shown, a kind of iron ore concentrate concentration dehydration processing novel process is characterized in that comprising the following steps:

[0014] a Feed the iron ore concentrate slurry with a concentration of 55%-70% into the mixing tank for stirring;

[0015] b After being stirred by the mixing tank, the iron ore concentrate slurry is fed into the filter for dehydration through the underflow pump;

[0016] c The iron concentrate filter cake with a water content of 8.5%-9.5% dehydrated by the filter is used as the final product, and the filtrate with a concentration of 0.3%-0.5% is imported into the filtrate pump pool, and enters the water treatment system of the mineral processing plant for recycling, while The overflow of the filter with a concentration of 45%-65% returns to the mixing tank to f...

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Abstract

The invention discloses a new process for concentrating and dehydrating an iron concentrate. The process is characterized by comprising the following steps of: (a) feeding 55 to 70 percent iron concentrate pulp into a stirring barrel for stirring; (b) feeding the iron concentrate pulp into a filtering machine for dehydrating by using an underflow pump; and (c) obtaining a final product, namely an iron concentrate filter cake with the water content of 8.5 to 9.5 percent, discharging 0.3 to 0.5 percent filtrate into a filtrate pump tank, recycling by using a water treatment system in a dressing plant, and returning 45 to 65 percent overflow of the filtering machine to the stirring barrel to form a closed cycle. The filtrate and the overflow from the filtering machine are treated respectively, so that the process link of concentrating by using a concentrator is eliminated, the process for concentrating and dehydrating the concentrate is simplified, the number of pumps and pipelines and maintenance cost are reduced, and production cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of iron concentrate concentration and dehydration, and in particular relates to a new iron concentrate concentration and dehydration treatment process. It is especially suitable for the separate treatment process of filter filtrate and filter overflow in the process of iron concentrate concentration and dehydration. Background technique [0002] In the concentration and dehydration process of iron ore concentrate, the filter is widely used as a dehydration equipment in the mineral processing field. Usually in the concentrate dehydration process, the iron concentrate slurry with a concentration of 45%-65% is fed into the mixing tank, and the slurry is fed into the filter through the underflow pump, and the filter cake is formed after being filtered by the filter. Filtrate, while the volume of filtered filtrate accounts for about 50% of the ore volume, and the concentration is below 0.5%. In the actual produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D37/04B01D33/17
Inventor 林君鹤郑金香于海龙陆占国
Owner ANSTEEL GRP MINING CO LTD
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