Steelmaking waste slag slurry treatment system

A steelmaking waste slag and liquid treatment technology, which is applied in grain processing, fixed filter elements, applications, etc., can solve the problem of not forming a steelmaking waste slag slurry treatment system, etc., to increase heat transfer efficiency and reduce waste , the effect of lowering the temperature

Pending Publication Date: 2021-11-26
云南玉溪玉昆钢铁集团有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Iron and steel production produces tens of tons of iron and steel waste slag at the same time, and the waste slag still contains a large amount of magnetic iron powder and steel beans. At present, some enterprises process a small part of the magnetic iron and steel waste slag powder through a very simple ball mill magnetic separation process, and no complete steelmaking waste slag is formed. Slag liquid treatment system

Method used

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  • Steelmaking waste slag slurry treatment system
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The steelmaking waste slag slurry treatment system is characterized in that it includes the following treatment steps:

[0029] S1. Filtration: pump the steelmaking waste slag slurry into the filter box 1 for filtration to remove large particles of impurities;

[0030] S2, cooling: collecting the filtrate filtered by S1, and cooling the filtrate through the cooling mechanism 2;

[0031] S3, grinding: adding the cooled filtrate into the grinding box 3 for grinding;

[0032] S4, iron removal: Add the ground filtrate to the iron removal mechanism 4 to remove iron, and then recycle the filtrate after iron removal,

[0033] The invention processes the steelmaking waste slag slurry treatment system through the steps of filtration-cooling-grinding-iron removal, and processes the slurry through a complete set of processes, which can remove the iron in the slag slurry, and the remaining part can be reused, which is relatively easy Waste less.

Embodiment 2

[0035] On the basis of Embodiment 1, the filter box 1 includes a filter box body, an inclined filter screen 5 is arranged in the filter box body, and a liquid outlet pipe is provided at the bottom end of the inclined filter screen 5, which can increase the uniformity of grinding in the subsequent grinding step. Spend.

Embodiment 3

[0037] On the basis of Embodiment 1, the cooling mechanism 2 includes a cooling pipe 6, the liquid inlet end of the cooling pipe 6 is connected to the liquid outlet pipe, and a condensation jacket 7 is sleeved on the outside of the cooling pipe 6, and a water inlet pipe and a water inlet pipe are arranged on the condensation jacket 7. The outlet pipe, the inner wall of the cooling pipe 6 is provided with an inwardly recessed groove 8, the groove 8 is evenly arranged on the inner wall of the cooling pipe 6, and the filtered steelmaking waste slag slurry is cooled and then ground to reduce its temperature , and the heat is transferred to the water in the condensation jacket through heat transfer to reduce the heat loss, increase the heat transfer efficiency and reduce the heat loss.

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Abstract

The invention belongs to the technical field of clean production, and particularly relates to a steelmaking waste slag slurry treatment system. The method comprises the following treatment steps of S1, filtering: pumping steelmaking waste slag slurry into a filter tank for filtering to remove large-particle impurities, S2, cooling: collecting filtrate filtered in S1, and cooling the filtrate through a cooling mechanism, S3, grinding: adding the cooled filtrate into a grinding box for grinding, and S4, iron removal: adding the ground filtrate into an iron removal mechanism to remove iron, and then recycling the filtrate after iron removal. The steelmaking waste slag slurry is systematically treated, so that the steelmaking waste slag slurry can be better treated.

Description

technical field [0001] The invention belongs to the technical field of clean production, and in particular relates to a steelmaking waste slag slurry treatment system. Background technique [0002] Iron and steel production produces tens of tons of iron and steel waste slag at the same time, and the waste slag still contains a large amount of magnetic iron powder and steel beans. At present, some enterprises process a small part of the magnetic iron and steel waste slag powder through a very simple ball mill magnetic separation process, and no complete steelmaking waste slag is formed. Slag liquid treatment system. Contents of the invention [0003] The object of the present invention is to propose a steelmaking waste slag slurry treatment system, which can process the steelmaking waste slag slurry systematically and better. [0004] In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions: [0005] The stee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D29/03B02C4/02B02C23/14B03C1/02F25D17/02
CPCB01D29/03F25D17/02B02C4/02B02C23/14B03C1/02B02C2201/06
Inventor 林宇计剑平陈丕锦刘小苗
Owner 云南玉溪玉昆钢铁集团有限公司
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