Stainless steel pipe production waste water zero discharge cyclic utilization system

Abstract

The invention discloses a stainless steel pipe production waste water zero discharge cyclic utilization system, which comprises a mother water pool, a flocculation basin, a centrifugal filtration machine and a water storage pool in sequential connection, wherein waste water enters the opening type primary filtering end of the mother water pool to be coarsely filtered, enters a filtering box to befinely filtered, and then enters the mother water pool; waste water in the mother water pool is conveyed into the flocculation pool to be flocculated; the flocculated waste water enters the centrifugal filtration machine; through centrifugal filtration, the water and flocculated precipitates are separated; the treated waste water enters the water storage pool to realize the cyclic application in anext stage. The waste slag is subjected to environment-friendly treatment. Through equipment transformation, process improvement and processing chemical improvement, the waste water treatment systemis optimized in multiple aspects; the work intensity is reduced; the labor is saved; the equipment investment is greatly reduced; the waste water treatment efficiency is improved; the waste water zerodischarge is really realized; the water resources are cyclically utilized; the water resource waste is avoided.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a wastewater treatment system for producing stainless steel steel pipes. Background technique [0002] Stainless steel pipes have a very important strategic position in my country's economy, but in the production process of stainless steel pipes, the treatment of wastewater after spraying, passivation, pickling, etc. has always been a headache for the industry and environmental protection experts. Stainless steel production wastewater contains manganese, ammonium, nickel, chromium and other heavy metal ion concentrations, fluoride, and acid concentrations are high, and it is difficult to meet the standards for treatment, which not only causes pollution to the surrounding environment, but also affects the environmental protection image of the enterprise. At present, the wastewater generated from the production of stainless steel pipes is mainly treated by precipitatio...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of environmental pollution and waste of water resources caused by excessive heavy metals in the production of stainless steel pipes or the discharge of waste water up to the standard in the prior art, and to provide a stainless steel capable of rapid flocculation, separation of slag and water, and rapid attachment and degradation of heavy metal ions Pipe production waste water zero discharge recycling system, the system has simple process, high degree of automation, easy operation and low investment, suitable for industrial application

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