Sedimentation tank of water granulated slag cooling water circulation system

Abstract

The invention discloses a sedimentation tank of a water granulated slag cooling water circulation system. The sedimentation tank is divided into three stages according to the depth, wherein the first-stage sedimentation tank is the deepest, and the third-stage sedimentation tank is the shallowest; a granulating basin is connected with one end of a water ditch, and the first-stage sedimentation tank is connected with the other end of the water ditch; a first-stage communicating port is formed in the connecting part between the water ditch and the first-stage sedimentation tank; a second-stage communicating port is formed in the connecting part between the first-stage sedimentation tank and a second-stage sedimentation tank; a third-stage communicating port is formed in the connecting part between the second-stage sedimentation tank and the third-stage sedimentation tank; a sludge air drying tank is arranged beside the first-stage sedimentation tank; a water channel formed in the sludge air drying tank is led to the first-stage sedimentation 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...

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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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