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Lignite upgrading condensate recycling system

A technology of condensed water and lignite, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve problems such as inability to be reused, achieve simple structure, good treatment effect, and process short process effect

Active Publication Date: 2013-11-20
CHINA UNIV OF MINING & TECH (BEIJING)
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a lignite upgrading condensate recovery and utilization system, which can be used as a supplementary water source for surface water after the lignite upgrading condensate reaches the surface water quality standard III, so as to solve the current problem The reuse treatment method of lignite upgrading condensate cannot meet the standard reuse of treated water as surface water

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Embodiment Construction

[0013] The following clearly and completely describes the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0014] The embodiment of the present invention provides a lignite upgrading condensate recycling system, such as figure 1 As shown, the system includes: water inlet pipe 1, medium temperature anaerobic reactor, multimedia adsorption filter device 3, electrochemical reaction device 4 and water outlet pipe 5;

[0015] Wherein, the water inlet pipe 1 is connected to the water inlet of the medium temperature anaerobic reactor 2;

[0016] The water outlet of the medium-temperature anaerobic reactor 2 is sequentially connected with the m...

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Abstract

The invention discloses a lignite upgrading condensate recycling system, belonging to the field of lignite upgrading condensate treatment. The system comprises a water inlet pipe, an intermediate-temperature anaerobic reactor, a multi-medium adsorption filtering device, an electrochemical reaction device and a water outlet pipe, wherein the water inlet pipe is connected with a water inlet of the intermediate-temperature anaerobic reactor; a water outlet of the intermediate-temperature anaerobic reactor is sequentially connected with the multi-medium adsorption filtering device and the electrochemical reaction device; and a water outlet of the electrochemical reaction device is connected with the water outlet pipe. According to the system, the intermediate-temperature anaerobic reactor, the multi-medium adsorption filtering device, the electrochemical reaction device and the like are organically coupled together, and the pollutants easily causing blockage and corrosion such as organic pollutants, SS, sulphate and the like in the lignite upgrading condensate and the toxic harmful persistent organic pollutants such as benzene series, phenols, cyanide and the like can be removed at the same time; and after treatment, the output water can almost reach the class III standard for the surface water quality standard and can be discharged as a supplementary water source of surface water.

Description

technical field [0001] The invention relates to the field of lignite upgrading condensed water treatment, in particular to a recovery and utilization system for treating lignite upgrading condensed water as surface replenishment water. Background technique [0002] Lignite is a brown-black low-rank coal between peat and bituminous coal. Its high moisture content is one of the important characteristics of lignite. The moisture content is generally 45% to 55%. Its moisture is mainly composed of 3 parts: (1 ) The moisture left and preserved by plants after coal-forming process and action. This part of the moisture basically reflects its degree of coalification, the shallower the degree of coalification, the higher the moisture content. It is the internal moisture of coal, or inherent moisture. (2) During the process of coal mining, stacking and transportation, the water in the free state remaining on the coal surface after being absorbed by the external environment or releasi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 张春晖郭远杰王凯谭淑慧牛夏梦苏佩东
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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