Anti-crystallization water seal device applied to ammonia-containing medium storage barrel and medium recovery method

Abstract

The invention discloses an anti-crystallization water seal device applied to an ammonia-containing medium storage barrel and a medium recovery method, and belongs to the technical field of equipment anti-crystallization water seal. The anti-crystallization water seal device comprises a water seal barrel body, an air inlet formed in the side wall of the water seal barrel body, an air outlet formed in the top of the water seal barrel body and penetrating into the position below the liquid level in a water seal barrel from the top of the water seal barrel through a steel pipe, a water supplementing opening, a steam blowing opening, a draining opening formed in the side face of the bottom of the water seal barrel, an overflow pipe arranged on the water seal barrel body, and a cleaning opening formed in the bottom of the overflow pipe, wherein the water supplementing opening and the steam blowing opening are formed in the water seal barrel body and located on the two sides of the air outlet. According to the anti-crystallization water seal device and the medium recovery method, crystals are prevented from being separated out due to temperature reduction of the water seal device, dismounting and cleaning are not needed, practicability and convenience are achieved, water seal water and ammonia are recovered, it can be guaranteed that ammonia brine is not diluted, ammonia loss is reduced, and the environment-friendly performance is high.

Description

technical field [0001] The invention relates to the field of equipment anti-crystallization water seal technology, in particular to an anti-crystallization water seal device and a medium recovery method applied to an ammonia-containing medium storage tank. Background technique [0002] At present, in the soda ash production process, the internal pressure balance of the large ammonia-containing medium storage tank is mainly realized by the water seal device. The water seal device in the prior art is simply made by the principle of U-shaped water seal, and fresh water is usually used as the water seal water. At the same time, it is equipped with a steam purging process, which can realize the purging and dredging of the breathing pipeline of the ammonia-containing medium storage tank. During the steam purging operation, the NH volatilized by the ammonia-containing medium 3 , CO 2 After the gas is dissolved in water, it is very easy to precipitate crystals at the bottom of the ...

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Problems solved by technology

[0002]At present, in the soda ash production process, the internal pressure balance of the large ammonia-containing medium storage tank is mainly realized by the water seal device. The water seal device in the prior art simply uses a U-shaped The production is based on the principle of water seal, and fresh water is usually used as the water seal water. At the same time, it is equipped with a steam purging process, which can realize the purging and dredging of the breathing pipe of the ammonia-containing medium storage tank. During the steam purging operation, the ammonia-containing medium Volatile NH3, CO2 and other gases are easily precipitated and crystallized at the bottom of the water-sealed bucket after being dissolved in water. In autumn and winter, the crystallization phenomenon is particularly obvious, and long-term monitoring is required. Time passes water, but due to the structural problems of the water seal device in the prior art, the fluidity of the liquid at the bottom of the water seal device is poor, and the crystal melting effect is not obvious, so it needs to be dismantled and cleaned regularly; in addition, in the process of dismantling, cleaning and water replacement , the overflow water will be introduced into the ditch, which will cause a small amount of ammonia loss, causing serious environmental problems

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