Closed water feeding process system for steel slag treatment

A process system and treatment system technology, applied in the field of closed-circuit water supply process systems, can solve problems such as blockage of production equipment and pipelines, environmental pollution, waste of water resources, etc., and achieve the effects of improving utilization efficiency, reducing costs, and avoiding blockage and damage.

Pending Publication Date: 2018-01-19
MCC ENERGY SAVING & ENVIRONMENTAL PROTECTION +2
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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

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  • Closed water feeding process system for steel slag treatment

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Embodiment Construction

[0016] Such as figure 1 As shown, the technological process is as follows: the alkaline wastewater containing fine-grained steel slag generated in the production process of the steel slag treatment system 6 enters the radial flow precipitation device 1 through the return water pipeline system 5, and the overflow of the fine-grained steel slag is removed through precipitation. The running water is pressurized by the water supply pump unit 4 and then supplied to each water point in the steel slag treatment system 6 for recycling, and the fine-grained steel slag that has settled is fed into the steel slag fine-grained filter press device 2 through the slurry pump unit 3 for compression. After filtration and dehydration, it is transported and stored. In addition, in order to avoid pipeline fouling, the radial flow precipitation device is equipped with an automatic dosing device 7, which can monitor the alkalinity value of the water supply system online in real time. The medicine ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D36/04
Inventor 张宇刘银梅王延兵刘楠薇韩自博张健祝晶晶
Owner MCC ENERGY SAVING & ENVIRONMENTAL PROTECTION
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