Air inlet device for variable-diameter carbonization tower

A technology of air intake device and carbonization tower, which is applied in the direction of carbonate preparations, products, reagents, etc., can solve the problems of large impact of heat exchange tubes, uneven air intake, deformation of heat exchange tubes, etc., to avoid impact wear and improve The effect of service life and increased intake air volume
CN109775728AActive Publication Date: 2019-05-21HUAIYIN INSTITUTE OF TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUAIYIN INSTITUTE OF TECHNOLOGY
Publication Date
2019-05-21

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Abstract

The invention discloses an air inlet device for a variable-diameter carbonization tower. The air inlet device comprises a main air inlet pipe which extends into the carbonization tower, multiple branch air pipes evenly distributed in the axial direction of the main air inlet pipe in a layer shape and an air blowing device arranged at the bottom of the carbonization tower. Multiple spray nozzles are evenly distributed on the branch air pipes, and gas discharged into the carbonization tower from the spray nozzles spirally ascends under the effect of the air blowing device. According to the air inlet device for the carbonization tower, the distribution uniformity of gas discharged into the carbonization tower is improved, the gas discharged out from the spray nozzles does not directly impacta heat exchange water tank above the air inlet device, impact and wear of a tube bundle in the heat exchange water tank are reduced, and the service life of the device is prolonged.
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Description

technical field

[0001] The invention relates to an air intake device of a variable-diameter carbonization tower, which belongs to the technical field of chemical equipment. Background technique

[0002] At present, the most commonly used soda-making methods in China are the Hou's soda-making method and the Solvay method. These two methods are to use ammonia salt solution to absorb carbon dioxide, the ammonia salt solution is passed into the top of the carbonization tower, and the carbon dioxide gas is passed into the bottom to react to generate sodium bicarbonate, and finally heat and decompose to sodium carbonate. The carbonization tower can be divided into three parts from top to bottom, which are absorption zone, cooling zone, and crystallization zone. The ammonia salt solution is passed into the upper absorption zone to initially absorb the carbon dioxide gas from the bottom, but no sodium bicarbonate crystals are precipitated at this time. In the crystallization zone,...

Claims

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