Short-process slag stewing water returning technology

Abstract

The invention relates to a short-process slag stewing water returning technology. A slag stewing tank, a sedimentation tank, a water purification tank and a water suction tank are included, wherein the bottoms of the sedimentation tank and the water purification tank are lower than the bottom of the stewing slag tank, return water of a bottom of the stewing slag tank flows to the sedimentation tank automatically, after sedimentation treatment of the water is carried out, the water flows automatically to the water purification tank, purified water is pumped to the water suction tank by a submersible pump, and the water in the water suction tank is pumped and sent to the slag stewing tank by a pump. A chemical feeding device is provided on an upper portion of the water suction tank, and grizzlies having filtration functions are provided in the water suction tank. According to the invention, a process of traditional slag hot disintegration water returning systems is shortened; the structure of the system is simple; no underground pipe gallery is required to be built; construction investment is greatly reduced; convenience in sedimentation tank dredging is achieved; problems of tube wall scaling are solved effectively; and recycling of the stewing slag water is realized.

Description

technical field [0001] The invention relates to a production process in the metallurgical industry, in particular to a short-flow backwater process in the production process of steel slag hot stuffing. Background technique [0002] At present, in the converter steel slag hot stuffing process, the steel slag is poured into the stuffy slag pool to draw water for cooling. The water stored in the water absorption pool is pumped to draw water for the slag pools. Except for some of the slag flushing water seeping through the gaps in the steel slag to the bottom, it enters the backwater pipeline corridor through the pipeline, and there is drainage in the pipeline corridor. ditch or drainage pipe, the return water flows into the return water well through the drainage ditch or drainage pipe, and the submersible pump placed in the well pumps the water to the sedimentation tank on the ground for sedimentation. water cycle. [0003] The backwater process is long, complicated, and has ...

AI Technical Summary

Problems solved by technology

[0003] The backwater process is long, complicated, and has many pipelines. It is necessary to build pipeline corridors underground, which increases a lot of construction investment; the cooling effect of the cooling tower is not good. Compared with high-temperature steel slag, the temperature drop of the backwater can be ignored, which increases the Construction cost; and the return water temperature is high, part of the water evaporates and loses in the process of passing through the cooling tower, which reduces the return water circulation rate; steel slag is alkaline, the slag flushing water is recycled, the pipe wall is scaled obviously, and maintenance is inconvenient; return water well and sedimentation During the use of the pool, it is often necessary to clean up the sediment. The sedimentation tank located on the ground uses a grab bucket to desilt. The operation is complicated and the effect is not good.

Images