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Comprehensive recycling system for coke dry quenching wastewater

A technology for cooling water systems and waste water, applied in coke ovens, mixing methods, coke cooling, etc., can solve problems such as waste of desalinated water

Pending Publication Date: 2020-08-11
LINHUAN COKING
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  • Description
  • Claims
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Problems solved by technology

At present, most domestic boiler sewage treatment methods are directly discharged into the ditch after expanding the container, which will inevitably cause waste of desalinated water

Method used

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  • Comprehensive recycling system for coke dry quenching wastewater

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Embodiment Construction

[0016] Below with reference to the accompanying drawings, through the description of the embodiments, the specific embodiments of the present invention, such as the shape, structure, mutual position and connection relationship between the various parts, the role and working principle of the various parts, etc., will be further described. detailed instructions.

[0017] Such as figure 1 As shown, the comprehensive reuse system for CDQ waste water includes a water seal cooling water system, a boiler blowdown waste water system and a sampling cooling water system, and also includes a water storage tank 7, a centrifugal pump 4, a check valve 5 and a circulating water pool 13, The waste water produced by the water-sealed cooling water system, the boiler blowdown wastewater system and the sampling cooling water system is connected to the water storage tank 7 through pipelines, the water storage tank 7 is connected to the centrifugal pump 4 through the pipeline, and the centrifugal p...

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Abstract

The invention discloses a comprehensive recycling system for coke dry quenching wastewater, and belongs to the field of energy conservation and environmental protection. The system is characterized inthat cooling water for cooling three water seals of a dry quenching furnace, boiler blow-off wastewater and sampling cooling water are connected into a water storage tank arranged on the ground through a buffer water tank and a pipeline; after boiler blow-down water in the water storage tank is mixed and cooled by water seal cooling water, a liquid level interlocking device arranged in the waterstorage tank controls a centrifugal pump to pump the wastewater into the circulating water pool for reuse, the water storage tank is arranged beside the fly ash silo, and a coke breeze grab bucket isarranged at the upper part of the water storage tank to periodically clean out coke breeze at the bottom of the tank and place the coke breeze in the fly ash silo. The system solves the problems of cyclic utilization of coke dry quenching wastewater and difficult collection of coke powder, and realizes the purposes of energy conservation and environmental protection of coke dry quenching.

Description

technical field [0001] The invention relates to the field of energy saving and environmental protection, in particular, the invention relates to a comprehensive reuse system for coke dry quenching waste water. Background technique [0002] CDQ is an important section in coke production. CDQ includes two parts: CDQ furnace and boiler. After two heat exchanges with CDQ furnace and boiler by circulating inert gas, it can extinguish red coke in CDQ furnace. The heat absorbed by the circulating gas heats the boiler to generate steam for external supply. [0003] As a device for processing red coke, the CDQ furnace is equipped with top release water seals, emergency release water seals and water seal tanks for loading devices. Since the water seal cooling water contains a large amount of coke powder, if it is directly collected into the circulation The pool will pollute the circulating water, and in severe cases, the circulating water pump will be blocked. As a special equipment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00B01F3/08C10B39/02C10B43/00C10B43/08B01D47/02C02F103/34
CPCC02F1/00C10B39/02C10B43/00C10B43/08B01D47/02C02F2103/34B01F23/48B01F23/49
Inventor 李梦年徐辉薛岩左新建周明星刘志文
Owner LINHUAN COKING
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