Closed water feeding process system for steel slag treatment

Abstract

The invention discloses a closed water feeding process system for steel slag treatment. The closed water feeding process system comprises radial flow sedimentation device, a steel slag fine-grain press filtering device and the like, and can be used for rapidly and efficiently removing steel slag fine silt in a generation process of a steel slag treatment system; the problems that pump set equipment, a water spraying part, a pipeline system and the like in the steel slag treatment system are easy to block are solved and the efficient cyclic utilization of water resources in a steel slag treatment production process is also realized, so that the steel slag treatment production cost is reduced at maximum.

Description

technical field [0001] The invention relates to a closed-circuit water supply process system for steel slag treatment, belonging to a water supply and water treatment system in the field of steel slag solid waste treatment. Background technique [0002] Steel slag is a solid waste produced in the steelmaking process. As of 2016, the annual output of steel slag has reached hundreds of millions of tons. Limited by the steelmaking process, steel slag contains a certain amount of free calcium oxide, which is in an alkaline state as a whole. In addition, the main mineral composition in steel slag is mostly hydraulic substances such as dicalcium silicate and tricalcium silicate. In order to realize the resource utilization of the molten high-temperature steel slag produced in the steelmaking process, and to meet the requirements of the steelmaking production rhythm, at present, the domestic and foreign treatment of steel slag generally uses water-cooling methods to rapidly solidif...

AI Technical Summary

Problems solved by technology

In order to realize the resource utilization of the molten high-temperature steel slag produced in the steelmaking process, and to meet the requirements of the steelmaking production rhythm, at present, the domestic and foreign treatment of steel slag generally uses water-cooling methods to rapidly solidify and cool it, so that during the production process of steel slag processing. There is a large amount of alkaline wastewater containing steel slag fine particles. Therefore, such water quality conditions can easily cause rapid blockage of production equipment and pipelines. Most of the current production is directly discharged, which not only increases the cost of steel slag treatment, but also causes water pollution. Waste of resources and pollute the environment

Images