Safe, simple, efficient and environment-friendly tar purification and solid waste treatment process

Abstract

The invention discloses a safe, simple, efficient and environment-friendly tar purification and solid waste treatment process, which relates to the technical field of coking production. A gas outlet of a coke oven battery is connected to a coke oven gas header sprayer, wherein an outlet of the coke oven gas header sprayer is connected to a gas-liquid separator, a mixed condensate outlet of the gas-liquid separator is connected to a preseparator, a tar residue outlet of the preseparator is connected to a tar press pump, a discharge outlet of the tar press pump is connected to the preseparator,moreover, a liquid outlet of the preseparator is connected to a tar-ammonia separation tank, and a tar outlet of the tar-ammonia separation tank is connected to a tar storage tank; a discharge outletof a tar residue delivery pump is connected to the coke oven battery; and a water outlet of the tar-ammonia separation tank is connected to the coke oven gas header sprayer. The invention solves the problem of conventional manual residual removal at the bottom of a tar tank, the problem of ground pollution caused by tar residue leakage in the process of the conventional tar residue transportationmethod, and the problem on how to reduce the consumption of manpower and vehicles in the process.

Description

technical field [0001] The invention relates to the technical field of coking production, in particular to a safe, simple, efficient and environment-friendly tar purification and solid waste treatment process. Background technique [0002] During the production process of coking in coking plants, the high-temperature coke oven gas produced is condensed to form coal tar under the conditions of the gas collector or primary cooler. At the same time, the coal powder and semi-coke entrained in the gas are also mixed in the coal tar to form agglomerates of various sizes, which are called tar residues. Coking plants produce a large amount of tar slag every year, and the tar slag discharged from the mechanized slag scraping tank accounts for the main part, which is then used for coal blending. [0003] At present, there are the following problems in domestic coking plants: most of them are mechanized clarifiers, and the tar residue has a large particle size and uneven quality, whic...

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Problems solved by technology

[0004] The object of the present invention is to aim at the defects and deficiencies of the prior art, to provide a simple structure, reasonable design, easy to use, safe, concise, efficient and environmentally friendly tar purification and solid waste treatment process, which is safe, environmentally friendly and reliable; solves the traditional The problem of manual cleaning of tar tank bottoms, as well as the problem of oil residue leakage and pollution on the ground caused by the traditional tar residue transportation method, and the reduction of labor and vehicle losses in this process; the purified tar oil is clean , the moisture content of the tar is below 2%, and it can be directly used as a finished product for subsequent deep processing of tar without further purification treatment

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