Water washing type slag treatment method

Abstract

The invention relates to water scrubbing slag treatment method. The slag falls to bolting machine through raw material collecting bucket to be separated into different specs of slag, which is selected out residue steel by magnetic separator. The biggest spec slag falls to mill to be crushed through second raw material collecting bucket and recycles to the re-treatment of the collecting bucket. Because the water bolting machine has aspersion system that can wash the lime powder of the slag, and the smallest spec slag passes magnetic separation and water scrubbing to filter sands. The water scrubbing the slag and sands can deposit fine materials, so the invention does not have the lime powder rising problem and can avoid the pollution of soil and underground water resource.

Description

technical field [0001] The invention relates to a water-washing slag treatment method, especially a water-washing post-treatment method specially used in steelmaking slag processing procedures, which can avoid flying dust, lime pollution of soil and underground water sources, and completely clean the slag. Practical ways to recycle and reuse. Background technique [0002] The slag of the steelmaking furnace can still be processed into products that meet the reuse requirements after post-processing technology, so as to provide industrial reuse value. [0003] A complete set of steelmaking slag post-treatment technology can be divided into four-stage procedures, including steelmaking slag pretreatment procedure, steelmaking slag processing procedure, steelmaking slag curing procedure and residual steel finishing procedure. However, in the slag post-processing industry, not all four procedures are available, but are selected according to their needs. The slag treatment method ...

AI Technical Summary

Problems solved by technology

[0011] 1. High equipment cost: After the slag is dried, it will cause lime dust to fly and pollute the air. Therefore, in addition to the drying equipment, additional pollution prevention equipment must be installed to increase the equipment cost.

[0012] 2. Low operating efficiency: Since this treatment method must be completely dried to sort out the expected type of ingredients, the amount of feed should not be too much at one time during the drying process, otherwise it will cause stagnation and blockage of the process, affecting Its operating efficiency

[0013] 3. Air pollution: Even if the existing treatment methods are equipped with pollution prevention and dust collection equipment, they can only reduce the fine dust in the air to within the standard value, but cannot completely isolate the problem of flying dust

[0014] 4. High maintenance costs: In addition to equipment costs, the cost of maintenance, maintenance, operation and consumption of pollution prevention equipment and drying equipment in the future is quite high, and the failure rate is high, so additional maintenance costs will be derived

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