Method for setting total water amount of thermal process of steel slag strip ladle

Abstract

A method for setting the total water amount of the thermal process of a steel slag strip ladle aims to reduce iron oxide slag after the thermal process and the cooling process and also reduce the amount of cooling water for 1 ton of slag. The inside of the slag ladle is provided with a slag pot surveying rod; the spraying pipe of a field spraying system is provided with a watermeter; the actual volume of the slag ladle and the actual flow of the nozzle used in actual working condition are measured according to the water amount fo the slag ladle; a trial rod or the comparison visual observation method is utilized to measure the value L which is the distance between the upper surface of steel slag in the slag ladle and the upper edge of the tank, the sampling tables of the value L and the volume of the slag ladle are given; the set total water amount parameter is calculated; and the total water amount is adjusted continuously according to the actual field cooling effect to form a chart that the smoldering time of steel slag changes with the value L and provide a reference for setting technological parameters.

Description

technical field [0001] The invention relates to a metallurgical slag treatment technology. Background technique [0002] The amount of steel slag and stainless steel slag produced by my country's steel production every year is huge, which is very easy to cause dust pollution. Usually, the steel slag belt tank hot stuffing process is used to deal with it. Due to the restriction of the production process and site conditions, the total amount of sprayed water, the key parameter of the hot stuffy process, is relatively extensive in the initial stage of production. The cooling effect was unstable. Later, a water meter was installed at the spray station of the slag tank to control the water volume. In winter, the water meter freezes and cracks frequently affect production, and it is impossible to realize the complete cooling of liquid steel slag in the slag tank before processing. In order to meet the production needs and speed up the operation of the slag tank, the steel slag is...

AI Technical Summary

Problems solved by technology

Due to the restriction of the production process and site conditions, the total amount of sprayed water, the key parameter of the hot stuffy process, is relatively extensive in the initial stage of production. The cooling effect was unstable. Later, a water meter was installed at the water spray station of the slag tank to control the water volume. In winter, the water meter freezes and cracks frequently affect production, and it is impossible to realize the complete cooling of liquid steel slag in the slag tank before processing.

In order to meet the production needs and speed up the operation of the slag tank, the steel slag is disposed of by tipping on a fixed site. In this way, red steel slag, especially liquid steel slag, will cause gas explosion when it is covered with water or wet ground during the tipping process. Safety accident caused by steel slag splashing and hurting people

And when the truck is tipped or turned upside down, hot air mixed with dust will rise in large quantities, polluting the environment

At the same time, since the steel slag cannot be effectively pulverized, most of it is in the form of large blocks, so that the metal iron in the slag cannot be recovered or the slag content in the slag steel is large, resulting in a waste of resources