Preparation method and application of stainless steel slag water-seepage and expansion cooling column

Abstract

The invention relates to a preparation method and an application of a stainless steel slag water-seepage and expansion cooling column. The cooling column uses limestone as a raw material, uses water glass as a caking agent, uses sodium fluosilicate as a dispersing agent, uses trimeric sodium phosphate as a hydrophobing agent and is prepared by crushing the raw material, mixing, stirring, cooling, settling in a mold, vibrating for molding, and milling in a caulking groove so as to have good strength. A positioning plate and a support grid plate are also made from the same material, and the cooling column, the positioning plate and the support grid plate are embedded in a stainless steel slag pot, sprayed by water and cooled, absorbed water permeates into the bottom and the periphery of the slag pot so that stainless steel slag can universally, safely, stably and reliably absorb and permeate the water, expand and be cooled at a large area, and a slag pot car can be driven to a clearing for cooling. The technology has high cooling efficiency and good cooling effect, thereby being a very ideal technology for the cooling treatment of the stainless steel slag and being also used for the cooling treatment of other steel slag.

Description

technical field [0001] The invention relates to a preparation method and application of a stainless steel slag water seepage expansion cooling column, which belongs to the technical field of steelmaking waste slag cooling treatment and application. Background technique [0002] Steel slag is the waste slag in the process of steelmaking. It is a solid waste, accounting for about 12-15% of steel production. It is used as an auxiliary material for smelting flux, building aggregate, cement and fertilizer. [0003] The temperature of steelmaking is very high and must be higher than the melting point of the metal. Stainless steel is a special steel containing chromium, nickel, manganese, molybdenum, copper, silicon and other elements. It is lower than the smelting temperature, and its temperature value is 1500°C. Before the steel slag is processed, the stainless steel slag must be cooled before it can be reused industrially. Due to the high temperature and large quantity of stain...

AI Technical Summary

Problems solved by technology

[0004]Currently, the cooling treatment technology of steel slag is still at a relatively low level, for example: the cold disposal method, steel slag is poured into the slag tank for slow cooling and then transported directly to the slag yard Abandoning, polluting the environment, is not conducive to comprehensive utilization; hot stewing method, digging pits to bury slag, spraying water to cool, and subsequent slag screening is cumbersome; hot splashing method, slope dumping, water cooling, land occupation is large; Spray water on the slag tray, but the treatment capacity is small, occupying a lot of water, and the cost is high; there are also open-air water quenching methods, stewed slag water quenching methods, shallow pan water quenching methods, etc., but the water is too much and it is easy to accumulate water, polluting the surrounding environment Seriously, the wet method occupies a large area and consumes water, the dry method is slow, and the processing cost is high. There are some technical deficiencies, and they are not ideal.

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