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A process and equipment for pyrolyzing coking wastewater by using converter dedusting high-temperature flue gas

A technology of coking wastewater and converter dedusting, which is applied in the field of iron and steel metallurgy and chemical industry, and can solve the problems of undiscovered coking wastewater

Active Publication Date: 2016-04-27
北京泰和元环保科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Through searching at home and abroad, there is no report on the use of converter high-temperature flue gas to treat coking wastewater

Method used

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  • A process and equipment for pyrolyzing coking wastewater by using converter dedusting high-temperature flue gas
  • A process and equipment for pyrolyzing coking wastewater by using converter dedusting high-temperature flue gas

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Embodiment Construction

[0010] Technical scheme of the present invention is as follows:

[0011] A combination of equipment for pyrolyzing coking wastewater by using converter dedusting high-temperature flue gas, including waste heat boiler (3), evaporative cooler (4), electric dust collector (5), ID fan (6), coking wastewater injection system (19) , it is characterized in that waste heat boiler (3), evaporative cooler (4), electric precipitator (5), ID fan (6) are sequentially connected, coking wastewater injection system (19) is connected with evaporative cooler (4); The cooler (4) is used to atomize the coking waste water and carry out the pyrolysis reaction under the action of the catalyst.

[0012] The coking wastewater injection system is connected to the evaporative cooler, which makes full use of the temperature of the flue gas in the evaporative cooler in the converter dedusting equipment to pyrolyze the organic matter in the untreated coking wastewater.

[0013] Preferably, the combination...

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Abstract

The invention discloses a process and equipment for pyrolyzing coking wastewater by utilizing dust-removed high temperature flue gas of a converter. The equipment comprises a waste heat boiler (3), an evaporation cooler (4), an electric dust remover (5), an ID air blower (6), and a coking wastewater spray system (19). The equipment is characterized in that the waste heat boiler (3), the evaporation cooler (4), the electric dust remover (5) and the ID air blower (6) are connected in sequence, wherein the coking wastewater spray system (19) is connected with the evaporation cooler (4); the evaporation cooler (4) is used for atomizing coking wastewater and carrying out pyrolytic reaction in the presence of the catalyst. The invention further relates to a process for pyrolyzing coking wastewater by utilizing the dust-removed high temperature flue gas of the converter. According to the equipment and method disclosed by the invention, coking wastewater can be directly treated without carrying out early-stage biochemical treatment, so that a process step of biochemical treatment in a coking plant is not required.

Description

technical field [0001] The invention relates to a process and equipment for pyrolyzing coking wastewater by using converter dedusting high-temperature flue gas, and belongs to the technical field of iron and steel metallurgy and chemical industry. Background technique [0002] In the converter dedusting system, after the flue gas passes through the heat exchange boiler in the flue system, the temperature of the flue gas is 850 ° C ~ 1000 ° C. A large amount of water is sprayed into this position to evaporate and cool the flue gas to cool the flue gas. To about 200 ℃, this process not only conducts dust electrification conditioning treatment on the flue gas, but also performs coarse dust removal, but the cooling process causes a large amount of sensible heat loss of the flue gas and consumes a large amount of water resources. The water consumption is about 0.1 m 3 / ton of steel. [0003] It is difficult to meet the emission targets of coking wastewater through biochemical ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/02C02F1/12C02F1/16B01D50/00
Inventor 李志峰种振宇商福成林七女滕国兴朱铁城陈芳珍董晓春江丹沈惟桥管山吉王长宝杨光义
Owner 北京泰和元环保科技发展有限公司
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