Ammonia water clarifying tank

Abstract

The invention discloses an ammonia water clarifying tank. The ammonia water clarifying tank comprises a rectangular sedimentation pond tank body, wherein a circulating ammonia water inlet pipeline is arranged at one end of the tank body and a circulating ammonia water outlet pipeline is arranged at the other end of the tank body; an inlet of the circulating ammonia water inlet pipeline and an outlet of the circulating ammonia water outlet pipeline are formed in the lower part of the tank body; a sedimentation plate group is arranged in the rectangular sedimentation pond tank body; sedimentation plates are arranged along the flowing direction of circulating ammonia water; the large sedimentation pond tank body is divided into a plurality of layers by the sedimentation plates; a top light oil collection device is arranged at the upper part of the circulating ammonia water outlet pipeline; the top light oil collection device is connected with a light oil outlet pipeline; and pre-set distances are reserved among the two ends of the sedimentation plates, and an inlet side and an outlet side of the circulating ammonia water respectively. The ammonia water clarifying tank is internally and additionally provided with the sedimentation plates and the large sedimentation pond tank body is divided into the plurality of layers by the sedimentation plates, so that the sedimentation distance is reduced by times, shallow tank separation is realized, and the separation effect of oil, water and residues is improved; and the separation of the ammonia water and light oil is further realized through the light oil collection device.

Description

technical field [0001] The invention relates to a device used in the coal chemical industry to separate and recover oil and water, tar residue solid particles and oil-water for ammonia water containing tar, tar residue and other impurities, especially relates to a device for heavy tar, light oil, solid impurities and Ammonia water clarifier for separation of ammonia water. Background technique [0002] In the existing technology of the coal chemical industry, circulating ammonia water is generally used to directly contact the high-temperature raw coal gas generated during the coking process. Since the raw coal gas contains a large amount of tar and entrained solid particles, the tar condensed during the cooling process and the entrained solid particles Into the circulating ammonia water, so solid particles such as tar and tar residue in the circulating ammonia water need to be continuously separated from the circulating ammonia water, the tar is recovered as chemical raw mat...

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Problems solved by technology

[0003] The mechanized ammonia clarification tank used in the prior art is an empty rectangular box structure, and the settlement distance of oil and slag reaches 1.5 to 2 meters. Due to the long settlement distance, the separation effect of oil, water and slag is not ideal, and the circulating ammonia water has For light oil, because the density of light oil is lower than that of water, there is no separation, which not only affects the normal operation of the coke oven, but also affects the treatment process of the remaining ammonia water, increases the production and treatment cost, and also affects the product quality

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