Circulating water pump field for blast furnace gas spraying system

Abstract

The invention relates to a circulating water pump field for a blast furnace gas spraying system, and belongs to the field of circulating water treatment of the blast furnace gas spraying system of aniron and steel plant. The circulating water pump field comprises a spraying water supply pool, more than two return water pools and a waste water pool, each return water pool is provided with a returnwater distribution channel for connecting the return water pools in series and is correspondingly provided with a valve; water treated by the return water pools flows into the spraying water supply pool, impurities are conveyed to a bypass filter through a bypass filter pump, and the treated water is discharged into the spraying water supply pool; water in the spraying water supply pool is conveyed to a pipeline filter through a spraying water supply pump, and is conveyed to a spraying tower after being treated; the used water sprayed by the spraying tower is used as return water to be gathered in the return water distribution channel for recycling; the bypass filter and the pipeline filter respectively communicate with the waste water pool through drainage pipes; and the bypass filter pump also communicates with a production wastewater pipe network through a water changing pipeline. By independently controlling the on-off of a return water source of each return water pool, the purpose of circulating water cleaning pool replacement under the condition that normal operation of the blast furnace gas spraying system is not affected is achieved.

Description

technical field [0001] The invention belongs to the field of circulating water treatment of a blast furnace gas spraying system in a steel plant, and relates to a circulating water pump field used for the blast furnace gas spraying system. Background technique [0002] The circulating water system is a very important part of the blast furnace gas sprinkler system, and its water supply reliability and water quality are directly related to the blast furnace gas cleaning effect. During the operation of common processes at present, the quality of circulating water will gradually deteriorate during long-term use, and the concentration of impurities and suspended solids in the water will continue to increase, and the nozzles of the spraying tower will be blocked, so that the gas spraying The effect is reduced. In order to prevent the clogging of the nozzles, the current method is to manually clean the tank and change the water. Although this method can avoid the clogging of the n...

AI Technical Summary

Problems solved by technology

During the operation of common processes at present, the quality of circulating water will gradually deteriorate during long-term use, and the concentration of impurities and suspended solids in the water will continue to increase, and the nozzles of the spraying tower will be blocked, so that the gas spraying Reduced effect

In order to prevent the clogging of the nozzles, the current method is to manually clean the tank and change the water. Although this method can avoid the clogging of the nozzles to a certain extent, there are the following problems: the pool needs to be completely emptied during the process of cleaning the water and changing the water, resulting in For a long time, the circulating water system cannot work, which affects the normal operation of the gas sprinkler system

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