Settling tank of grain slag cooling water circulating system

Abstract

The invention relates to a settling tank of a grain slag cooling water circulating system. The settling tank is divided into three levels according to depth, the first-level settling tank is the deepest, and the third-level settling tank is the shallowest. The settling tank is characterized in that one end of a water channel is connected with a grain slag tank, the other end of the water channel is connected with the first-level settling tank, the connection of the water channel and the first-level settling tank is provided with a first-level communication port, the connection of the first-level settling tank and the second-level settling tank is provided with a second-level communication port, and the connection of the second-level setting tank and the third-level settling tank is provided with a third-level communication port; a sludge air-drying tank is arranged beside the first-level settling tank and provided with a water channel leading to the first-level settling tank.

Description

technical field [0001] The invention relates to a sedimentation tank of a water slag cooling water circulation system. Background technique [0002] At present, in the smelting industry, the slag melt is discharged from the slag outlet of the blast furnace. The slag melt is cooled by water at the slag outlet and washed into the slag pool with the water through the slag tank. The water in the slag pool passes through the water channel It flows into the pool, and the water pumped by the sewage pump is transferred to the water slag outlet to continue cooling the water slag. This kind of water cycle has several disadvantages: 1. The mud content of the water in the pool is increasing, and the cooling effect of the water is reduced. The flow rate decreases and the water circulation effect decreases. 3. When the above two situations occur, it is necessary to add new clean water to increase the cooling effect, resulting in an increase in water consumption, and also increases the wa...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome various problems in existing smelting enterprises using the blast furnace water slag circulation system, the present invention provides a sedimentation tank for the water slag cooling water circulation system. Using the water slag cooling water circulation system sedimentation tank can reduce the amount of water in the pool when the blast furnace is working. The amount of sedimented silt can effectively reduce the silt content in the sewage, relieve the blockage of the pipeline, and at the same time, air-dry and recycle the silt. The water flowing out of the silt still flows into the pool for recycling, which increases the recycling rate of resources and reduces the smelting process. The one-time treatment capacity of the final sewage treatment system in the factory reduces the labor intensity

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