Water supply method for blast-furnace slag water treatment and water supply systems

Abstract

The invention belongs to the field of metallurgical iron-making equipment, and particularly relates to a water supply method for blast-furnace slag water treatment and systems of the water supply systems, which have the characteristics that equipment utilization ratio is high, the balance of a water system is not influenced, energy is saved and the environment is protected. The water supply method comprises the following steps: (a) pumping water in the cooling towers of the water supply systems into a granulating tank; (b) returning the granulating water recovered in the granulating tank into the cooling towers for recycling; and duplexing two water supply systems in the way that after operation, the granulating water in a first water supply system can be recovered into the cooling tower of a second water supply system for cooling, then the granulating water enters the cooling tower of the first water supply system through the second water supply system for recycling, and meanwhile, after operation, the granulating water in the second water supply system can be recovered into the cooling tower of the first water supply system for cooling, and then the granulating water is pumped into the cooling tower of the second water supply system through the first water supply system for recycling. With the water supply method for blast-furnace slag water treatment and water supply systems disclosed by the invention, the response time of a cooling system for secondary cooling can be effectively improved; and the water supply method and the water supply systems have the characteristics such as simple structure and convenience in operation.

Description

technical field [0001] The invention belongs to the field of metallurgical ironmaking equipment, and in particular relates to a blast furnace slag water treatment and water supply method and system thereof, which have high equipment utilization rate, do not affect the balance of the water system, are energy-saving and environment-friendly. Background technique [0002] At present, the domestic environment-friendly blast furnace slag water treatment water supply system is mainly composed of granulation tank, granulation return water pump, granulation return water valve, cooling tower, granulation water supply pump, granulation water supply valve, water treatment with condensation function The water supply system also includes condensing tower, condensing water return pump, condensing water return valve, condensing water supply pump, condensing water supply valve and related pipelines, etc. The water supply method is generally to pass the water in the cooling tower through the ...

AI Technical Summary

Problems solved by technology

When the system is equipped with two sets of blast furnace slag treatment systems for the same blast furnace, the utilization rate of the cooling tower is low, resulting in idle equipment. At the same time, due to site constraints, the equipment level of the cooling tower cannot fully meet the requirements of large slag volume operations.

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