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Environment friendly blast furnace slag treating process and system

A technology of blast furnace slag and treatment process, which is applied in the field of blast furnace slag treatment process and its system, which can solve the problems of large circulating water volume, complex process and high investment, and achieve the effect of good slag flushing quality, simple system and low energy consumption

Inactive Publication Date: 2007-06-27
WISDRI ENG & RES INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] This process is relatively complicated (as shown in Figure 1, and its system is shown in Figure 3). This process has two circulation loops of granulation and condensation, with a large amount of circulating water, high energy consumption, large land occupation, and high investment.

Method used

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  • Environment friendly blast furnace slag treating process and system
  • Environment friendly blast furnace slag treating process and system
  • Environment friendly blast furnace slag treating process and system

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Embodiment Construction

[0024] As shown in Figure 2, the environmental-friendly blast furnace slag treatment process, the red slag produced by the blast furnace is sprayed with cooling water in the granulation box installed under the end of the red slag ditch to quickly cool and water quench, and the slag and water after water quenching first pass through the slag flushing ditch , and then rush into the slag blocking plate in the granulation tank for further crushing, and then enter the collection pipe at the lower part of the granulation tank; then the slag-water mixture in the collection pipe enters the slag water pipe and enters the distributor of the dehydration drum along the slag water pipe. The water in the lower part of the dehydration drum keeps the slag-water mixture cooled, and is rotated and lifted by the dehydrator equipped with a sieve plate to filter. When the dehydration drum turns to a high point, the water slag falls into the belt conveyor in the dehydration drum and is transported ou...

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Abstract

The present invention is environment friendly blast furnace slag treating process and system. The blast furnace slag treating process includes water quenching the red slag for fast cooling with the granulating tank sprayed cooling water and collecting in the collecting pipeline; conveying to the distributor of dewatering drum and separating into water granulated slag falling to the belt conveyer for being transported to the slag yard and filtered hot water; collecting hot water, pumping to cooling tower for cooling and condensing through the atomizing nozzle in the condensing tower; and collecting the condensated water and returning through the third water pipe, the buffering tank and the fourth water pipe to the granulating tank for reuse. The present invention has the advantages of simple system composition, environment friendship, low power consumption, etc.

Description

technical field [0001] The invention belongs to the field of metallurgical ironmaking equipment, and in particular relates to a blast furnace slag treatment process and a system thereof. Background technique [0002] At present, the domestic environment-friendly blast furnace slag treatment system mainly consists of red slag ditch, granulation box, granulation tank (pool), dehydration drum, steam condensation recovery system (condensation tower), water pump, cooling tower, granulation condensation circulation water pipe The red slag ditch contains molten slag, the output end of the red slag ditch is located above the input end of the granulation tank (pool), and a granulation box is arranged between the output end of the red slag ditch and the input end of the granulation tank. There is a spray hole on the granulation box. When the slag from the red slag ditch falls into the granulation tank, the high-pressure water in the granulation box is sprayed out through the water spr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B3/06C21B3/08
CPCC21B2400/024C21B2400/062C21B2400/072C21B2400/074Y02W30/50
Inventor 刘谭璟周强林昊彭小平符伟
Owner WISDRI ENG & RES INC LTD
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