Sewage treatment system

A sewage treatment system and technology of the treatment system are applied in the system field of sewage treatment and recycling in steel rolling mills, which can solve the problems of excess water in the turbid ring system of the casting machine, overflowing water in the circulating water pool, etc. The effect of reducing pollution

Inactive Publication Date: 2018-08-14
SICHUAN DESHENG GRP VANADIUM & TITANIUM CO LTD
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Problems solved by technology

All the return water enters the turbid ring pool of the casting machine, resulting in excess water in the turbid ring system of the casting machine, and the circulating pool has overflowing water discharge phenomenon

Method used

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  • Sewage treatment system

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Embodiment Construction

[0015] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with specific embodiments.

[0016] Such as figure 1 As shown, the present invention includes a converter turbid ring water treatment system, a continuous casting turbid ring water treatment system, and a flushing water treatment system.

[0017] The converter turbid ring water treatment system includes the thermal system sewage treatment system, the fan room water seal overflow water treatment system, and the slag yard external drainage treatment system.

[0018] The thermal system sewage treatment system includes a collection device for collecting and summarizing converter gas bag and fume hood sewage. The collection device discharges sewage into the converter turbid ring water purification system through an elevated water tank. Reduce water discharge by 4m3 / h, about 100 tons ...

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Abstract

The invention discloses a sewage treatment system. The sewage treatment system comprises a converter turbid circulating water treatment system, a continuous casting turbid circulating water treatmentsystem and a washing water treatment system. The sewage treatment system with the structure is suitable for treating production sewage of a steel rolling factory, a large part of the sewage is recycled after being treated, drainage of the sewage to the outside is greatly reduced, and the pollution to the environment is relieved.

Description

technical field [0001] The invention relates to a system for treating and recycling sewage from a steel rolling mill. Background technique [0002] Steel rolling mills include converter systems and continuous casting systems. All the net ring water in the converter system is recycled, and the cooling tower evaporation loss and other system losses are supplemented by production fire fighting water; the turbid ring water system has excess water due to external water discharge, and the excess water is partially sent to slag after being squeezed by sludge The steel slag is used for on-site cooling, and the rest is sent to the blast furnace slag pool for water replenishment. The net ring water of the continuous casting system is all recycled, and the loss of cooling tower (or evaporative cooler) and other losses in the system are supplemented with soft water; the chemical degreaser of the turbid ring water system is regularly discharged, and the sewage is discharged to the sewag...

Claims

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Application Information

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IPC IPC(8): C02F9/12
CPCC02F1/38C02F1/40C02F1/488C02F1/5281C02F9/00C02F2001/007C02F2103/16
Inventor 廖勇张宪冬唐俊张生策郑锡辉谢超
Owner SICHUAN DESHENG GRP VANADIUM & TITANIUM CO LTD
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