Method for tipping molten slag in airtight system

Abstract

The invention discloses a method for tipping molten slag in an airtight system. In the method, a steel slag preprocessing chamber and a rail-type slag pot tipping vehicle are provided. The tipping method comprises the following steps of: 1) receiving the slag, namely placing a slag pot on the rail-type slag pot tipping vehicle by using a crown block or a slag pot carrier; 2) conveying into the steel slag preprocessing chamber, making the rail-type slag pot tipping vehicle operated to a specified position inside the steel slag preprocessing chamber along a rail, and enclosing the steel slag preprocessing chamber; 3) deslagging, namely tipping the slag pot by using the rail-type slag pot tipping vehicle and tipping high-temperature molten steel slag to the bottom of the steel slag preprocessing chamber; 4) retreating the vehicle out of the steel slag preprocessing chamber, and making the rail-type slag pot tipping vehicle operated to a specified position outside the steel slag preprocessing chamber along the rail; and 5) repeating the steps from 1) to 4), and periodically operating. By the method, steel slag tipping operation can be finished in the airtight system, equipment has a simple structure and high degree of automation, and primary dust raising is prevented.

Description

technical field [0001] The invention relates to a steel slag treatment method in the iron and steel smelting industry, in particular to a method for realizing waste heat recovery and pretreatment of steel slag in a closed system. Background technique [0002] In the field of steel slag treatment, there are many methods of tipping slag tanks, such as dumping tanks by cranes, tank trucks and so on. However, most of the above methods are to complete the slag dumping operation under an open system, resulting in a large amount of dust generated during the dumping of steel slag, and waste of waste heat of steel slag at the same time. In addition, in the previous related application of the applicant, the slag dumping method adopts the crane dumping method, but the crane dumping has problems such as dust, waste of waste heat, etc. In view of these shortcomings, the applicant has developed a method for dumping slag in a closed system . Contents of the invention [0003] The purpo...

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Problems solved by technology

However, most of the above methods complete the slag dumping operation in an open system, resulting in a large amount of dust generated during the dumping of steel slag, and waste of waste heat of steel slag

In addition, in the previous related application of the applicant, the slag dumping method adopts the crane dumping method, but the crane dumping has problems such as dust, waste of waste heat, etc. In view of these shortcomings, the applicant has developed a method for dumping slag in a closed system

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