Pressure-bearing integral metallurgy sewage purifying treatment device

Abstract

The invention discloses a pressure-bearing integral metallurgy sewage purifying treatment device comprising a sealed pressure-bearing shell, wherein the shell is provided with at least two settling chambers, at least two flocculation reaction chambers and a hydraulic circulating clarifying chamber, and the settling chambers and the flocculation reaction chambers are staggered from bottom to top and are communicated in sequence; the lower end of each settling chamber is respectively connected with a blow-off pipe which extends to the outside of the shell; and the upper part and lower part of the shell are respectively provided with a discharging pipe and a water inlet pipe which extend to the outside of the shell. The treatment device can ensure stable purification effect and strong water impact resistance, has less possibility of being blocked, and is simple and convenient for maintenance; and the fully-sealed pressure-bearing integral metallurgy sewage purifying treatment device can fully utilize the residual pressure of coming water, and water produced by the device can be sent to a pressure filter or a cooling tower with no need of a secondary pressurizing pump station.

Description

technical field [0001] The invention relates to a pressure-bearing integrated metallurgical sewage purification treatment device, which belongs to energy-saving and environment-friendly water purification equipment, and is suitable for the purification treatment of various sewage in iron and steel enterprises, especially for the treatment of turbid ring water in continuous casting and hot rolling systems of iron and steel enterprises. Purification treatment can also be used for purification treatment of sewage in other industries. Background technique [0002] In the iron and steel industry, the turbid ring water system of traditional continuous casting and hot rolling production lines generally adopts the following treatment process. The slag washing sewage from the production line enters the primary sedimentation tank or swirl tank by gravity flow, and the effluent passes through the primary booster pump. Station sent to the chemical decontamination device or rare earth di...

AI Technical Summary

Problems solved by technology

[0005] 1. The existing multi-functional integrated and integrated water purification equipment only integrates part of the water treatment process of coagulation, sedimentation and clarification, and fails to make systematic optimization adjustments for the water quality characteristics of steel enterprise sewage

[0006] 2. The existing multi-functional integrated and integrated water purification equipment fails to remove solid particle impurities in different particle size ranges in sewage, which may easily cause blockage in local areas of the equipment

[0007] 3. The highly integrated structural characteristics of the existing multi-functional integrated and integrated water purification equipment make the functions of flocculation, sedimentation, and filtration affected to a certain extent, so the impact resistance of the equipment becomes weaker, resulting in unstable water quality

[0008] 4. The existing multi-functional integrated and integrated water purification equipment cannot make full use of the residual pressure head of the first-stage pressurized pump station, and the water produced by the device still needs to be sent to the cooling tower through the second-stage pressurized pump station, causing unnecessary waste. power consumption

[0009] 5. The structure of existing multi-functional integrated and integrated water purification equipment is relatively complicated, especially the integrated water purification device integrated with filtration technology, which adds great difficulty to later maintenance and control operations

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