Sintering flue gas desulfurization wastewater treatment system and method for sintering finished ores

A technology for desulfurization wastewater and sintering flue gas, which is applied in separation methods, chemical instruments and methods, dispersed particle separation, etc. Effect

Inactive Publication Date: 2010-02-24
BAOSTEEL ENG & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the process of these wastewater treatment devices is complicated, and the investment and operation costs are high.

Method used

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  • Sintering flue gas desulfurization wastewater treatment system and method for sintering finished ores
  • Sintering flue gas desulfurization wastewater treatment system and method for sintering finished ores

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Embodiment Construction

[0025] The processing system and processing method of the present invention will be described in detail below through a preferred embodiment with reference to the accompanying drawings.

[0026] Referring to the accompanying drawings, a sintering flue gas desulfurization wastewater treatment system for sintering finished ores of the present invention is mainly composed of a recovery water tank 1, a waste water cyclone 2, a flow meter 3, a regulating valve 4, a waste water tank 5, and a waste water cyclone Feed pump 6, waste water pump 7, CaCl 2 The aqueous solution tank 8 and the nozzle 9 are composed of parts, which are connected by pipelines.

[0027] The waste water cyclone 2 , the regulating valve 4 , and the waste water cyclone feeding pump 6 are respectively connected to the recovery water tank 1 , and the waste water cyclone feeding pump 6 is connected to the waste water cyclone 2 and the regulating valve 4 . The other end of the waste water cyclone 2 is connected to t...

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Abstract

The invention relates to sintering flue gas desulfurization wastewater treatment system and method for sintering finished ores. A wastewater whirlcone, an adjusting valve and a wastewater whirlcone feeding pump are respectively connected with a recovered water tank, and the wastewater whirlcone feeding pump is connected with the wastewater whirlcone and the adjusting valve. The other end of the wastewater whirlcone is connected to a wastewater tank, and a flowmeter is connected between the wastewater whirlcone and the wastewater tank. The wastewater tank is connected with a CaCl2 water solution tank and a wastewater pump, and the wastewater pump is connected to a nozzle through a pipeline. The treatment method is realized as follows: recovered water in the recovered water tank of a sweetener is transmitted to the wastewater whirlcone through the wastewater whirlcone feeding pump, one part of the recovered water in the wastewater whirlcone is returned to the recovered water tank, and the other part of the recovered water enters in the wastewater tank through the flowmeter to become wastewater, and the opening of the adjusting valve is adjusted so as to control the desulfurated wastewater. By adopting the system and the method, the invention realizes recycle of sintering flue gas desulfurization wastewater, energy saving and emission reduction, investment saving and running costreduction.

Description

technical field [0001] The invention relates to a sintering flue gas desulfurization technology in a steel plant, in particular to a sintering flue gas desulfurization waste water treatment system and treatment method for sintering finished ore. Background technique [0002] Sintering flue gas of iron and steel plant contains a lot of SO 2 and a small amount of HCl to reduce SO emission 2 It is the key task of environmental protection during my country's "Eleventh Five-Year Plan". [0003] In the limestone-gypsum wet flue gas desulfurization process, Cl in the desulfurization system - The higher the concentration, the higher the concentration, so part of the Cl in the system - Need to be discharged as waste water. Wastewater still contains other substances such as: suspended solids, heavy metal ions, SO 4 2- , SO 3 2- , SO 3 2- etc. Since some of the components exceed the standard, they cannot be directly reused or incorporated into the steel plant sewage treatment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/50B01D53/96
Inventor 张海燕李向阳施锦德
Owner BAOSTEEL ENG & TECH GRP
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