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Deep treatment process for hot rolling wastewater

A technology for advanced treatment and wastewater, applied in the field of water treatment, can solve the problem of no hot rolling wastewater treatment process, etc., and achieve the effects of stable treatment effect, low production and operation cost, and easy operation and operation.

Pending Publication Date: 2022-05-13
BAOSTEEL ZHANJIANG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] So far, there is no treatment process for the depth of hot rolling wastewater

Method used

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  • Deep treatment process for hot rolling wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 As shown, a hot-rolling wastewater advanced treatment process includes a primary lift pump 1, an inclined plate sedimentation tank 2, a dosing tank 3, a dosing pump 4, a secondary lift pump 6, a fly ash adsorption tank 7 and an outlet pump 9. The output ends of the primary lifting pump 1 and the dosing pump 4 are connected to the input end of the inclined plate sedimentation tank 2, the input end of the dosing pump 4 is connected to the output end of the dosing tank 3, and the output end of the secondary lifting pump 6 The input end is connected to the output end of the inclined plate sedimentation tank 2, and the output end of the secondary lift pump 6 is connected to the input end of the fly ash adsorption tank 7, and the input end of the outlet pump 9 is connected to the output end of the fly ash adsorption tank 7 connected, the inside of the dosing tank 3 is filled with a high-efficiency composite water treatment coagulant 5, and the inside of the f...

Embodiment 2

[0040] Such as figure 1 As shown, a hot-rolling wastewater advanced treatment process includes a primary lift pump 1, an inclined plate sedimentation tank 2, a dosing tank 3, a dosing pump 4, a secondary lift pump 6, a fly ash adsorption tank 7 and an outlet pump 9. The output ends of the primary lifting pump 1 and the dosing pump 4 are connected to the input end of the inclined plate sedimentation tank 2, the input end of the dosing pump 4 is connected to the output end of the dosing tank 3, and the output end of the secondary lifting pump 6 The input end is connected to the output end of the inclined plate sedimentation tank 2, and the output end of the secondary lift pump 6 is connected to the input end of the fly ash adsorption tank 7, and the input end of the outlet pump 9 is connected to the output end of the fly ash adsorption tank 7 connected, the inside of the dosing tank 3 is filled with a high-efficiency composite water treatment coagulant 5, and the inside of the f...

Embodiment 3

[0051] Such as figure 1 As shown, a hot-rolling wastewater advanced treatment process includes a primary lift pump 1, an inclined plate sedimentation tank 2, a dosing tank 3, a dosing pump 4, a secondary lift pump 6, a fly ash adsorption tank 7 and an outlet pump 9. The output ends of the primary lifting pump 1 and the dosing pump 4 are connected to the input end of the inclined plate sedimentation tank 2, the input end of the dosing pump 4 is connected to the output end of the dosing tank 3, and the output end of the secondary lifting pump 6 The input end is connected to the output end of the inclined plate sedimentation tank 2, and the output end of the secondary lift pump 6 is connected to the input end of the fly ash adsorption tank 7, and the input end of the outlet pump 9 is connected to the output end of the fly ash adsorption tank 7 connected, the inside of the dosing tank 3 is filled with a high-efficiency composite water treatment coagulant 5, and the inside of the f...

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Abstract

The invention relates to the technical field of water treatment, and discloses a hot rolling wastewater advanced treatment process, which comprises a primary lift pump, an inclined plate sedimentation tank, a dosing tank, a dosing pump, a secondary lift pump, a fly ash adsorption tank and a water outlet pump, and the output ends of the primary lift pump and the dosing pump are both connected with the input end of the inclined plate sedimentation tank; the input end of the dosing pump is connected with the output end of the dosing tank, the input end of the secondary lifting pump is connected with the output end of the inclined plate sedimentation tank, and the output end of the secondary lifting pump is connected with the input end of the fly ash adsorption tank; the invention provides a complete hot rolling wastewater deep treatment technical scheme for the first time, the problem of environmental pollution caused by hot rolling wastewater discharge is systematically solved, the hot rolling wastewater treated by the technical scheme can reach the standard to be discharged and can also be reused in a production system, and water resources are recycled. The treatment effect is stable, the production operation cost is low, and operation is simple.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to an advanced treatment process for hot rolling wastewater. Background technique [0002] The iron and steel industry is an industry with high energy consumption, high resources and high pollution. It consumes a lot of water resources, accounting for about 14% of the national industrial water consumption. [0003] In July 2005, the National Development and Reform Commission issued the "Iron and Steel Industry Development Policy", which put forward higher goals and more specific requirements for the iron and steel industry to develop circular economy, save energy and resources, and take the road of sustainable development. Under these conditions, low energy consumption, low pollution, and low emissions have become the needs of social development. [0004] The unit water consumption of my country's iron and steel enterprises is still higher than that of foreign advanced iron...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04B01J20/14B01J20/30C02F1/28C02F1/52C02F103/16
CPCC02F1/5236C02F1/5263C02F1/288B01J20/14B01J20/06B01J20/08B01J20/103B01J20/041C02F2001/007C02F2103/16
Inventor 韦晶晶李恩超桂其林王湘何翀
Owner BAOSTEEL ZHANJIANG IRON & STEEL CO LTD