Novel process for filtration of tail powder slurry of deep processed product of steel slag

A technology of deep processing and new process, applied in the new process field of filtration of tail powder slurry of steel slag deep processing products, can solve the problems of unfavorable transportation, poor filtering effect and high water content of products, achieve significant economic benefits, improve productivity, and recover secondary resources. Effect

Inactive Publication Date: 2011-04-20
ANSTEEL GRP MINING CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The filter method adopted for the tailing slurry is a cylindrical inner filter filter, which has poor filtering effect and high water content in the product, which is not conducive to transportation

Method used

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  • Novel process for filtration of tail powder slurry of deep processed product of steel slag
  • Novel process for filtration of tail powder slurry of deep processed product of steel slag

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] like figure 1 Shown, steel slag deep-processed product tail powder slurry filtration novel process of the present invention is characterized in that comprising the following steps:

[0019] 1) After the tailings slurry 1 after the deep processing of steel slag magnetic separation products is separated by the concentrator 2, the concentration of the slurry is 25-35%, and the slurry at the bottom of the concentrator 2 is pumped to the slurry at the top of the filter press 4 Adjust tank 3, the thickener is Concentrator

[0020] 2) At the same time, add polymer flocculant 7 into the slurry adjustment tank 3, the polymer flocculant is preferably polyacrylamide; the addition amount of the polymer flocculant is 0.45-0.55 kg / ton pulp;

[0021] 3) The concentrated pulp and polymer flocculant are fully mixed in the adjustment tank 3 and then flow into the filter press...

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Abstract

The present invention relates to the technical field of the deep processed product of steel slag, in particular to a novel process for the filtration of the tail powder slurry of the deep processed product of steel slag, which comprises the following steps: concentrating the tail powder slurry separated by deep processing of the steel slag magnetic separation product by a concentrator to obtain an ore slurry concentration of 25-35%; transporting the ore slurry from the bottom of the concentrator to the ore slurry adjusting tank on the upper part of a filter press by a slag slurry pump; adding a polymer flocculant into the ore slurry adjusting tank; mixing the concentrated ore slurry and the polymer flocculant completely in the adjusting tank; allowing the mixture to flow automatically from the adjusting groove into the filter press; transporting the pressure-filtered filter cake with a concentration of 65-75% to the finished product storehouse of tail powder slurry by a belt; returning the filtrate to the concentrator. The polymer flocculant is polyacrylamide. The addition amount of the polymer flocculant is 0.45-0.55 kilogram / ton ore slurry. By processing tail powder slurry of the tailing product of steel slag by the filtration process, secondary resources of iron and steel enterprises are effectively recovered and the productivity is improved, so economic benefits are obtained for iron and steel enterprises.

Description

technical field [0001] The invention relates to the technical field of steel slag deep-processing products, in particular to a new process for filtering tail powder slurry of steel slag deep-processing products. Background technique [0002] Steel slag is the waste residue removed during the steelmaking process. Steel slag mainly comes from the oxides formed after the oxidation of elements contained in molten iron and scrap steel, impurities brought by metal furnace charges, slagging agents added such as limestone, fluorite, silica, oxidants, desulfurization products, and eroded furnace lining materials. The iron in the steel slag can be recovered by adopting a certain process. The products of steel slag after primary processing and deep processing are refined block steel, refined iron powder and tailing slurry. The filter method adopted for the tailing slurry is a cylindrical internal filter filter, which has poor filtering effect and high water content in the product, wh...

Claims

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Application Information

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IPC IPC(8): B01D37/03C21B3/04
CPCY02P10/20Y02W30/50
Inventor 于克旭
Owner ANSTEEL GRP MINING CO LTD
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