Amino acid concentration system

Abstract

The invention discloses an amino acid concentration system, and belongs to the technical field of fine chemical industry production. The amino acid concentration system comprises a concentration kettle, a vacuum-pumping device and a gas washing device, wherein the a pipe opening is formed in the top of the concentration kettle and connected with the vacuum-pumping device, and an outlet of the vacuum-pumping device is connected with the gas washing device. According to the amino acid concentration system, steam produced through concentration is washed and absorbed through the gas washing device, the defects of the process for recycling hydrochloric acid through the condensation process are overcome, the absorption efficiency is improved and water consumption is lowered due to the design of spraying liquid in a circulating mode through a circulating pump and the design of multi-stage spraying, meanwhile, the concentration of the hydrochloric acid in the absorption liquid can reach a certain level after circulation and absorption are conducted multiple times so that the absorption liquid can be used as a by-product serving as a raw material for other production processes, and the system is high in operability and can adapt to the discontinuous production process of amino acid due to the advantage that the system can be instantly started and instantly stopped.

Description

technical field [0001] The invention relates to a chemical production system, in particular to an amino acid concentration system, belonging to the technical field of fine chemical production. Background technique [0002] A large amount of hydrochloric acid will be produced in the concentration process of the amino acid production process, which is generally treated by direct discharge, which not only causes serious environmental pollution, but also poses a great hazard to the health of workers. In actual production, there has been the use of condensers to recover volatile hydrochloric acid. process, but due to the low pressure of volatile hydrogen chloride, the efficiency of the condenser in the condenser is low. In order to improve the efficiency of condensation recovery, it is necessary to reduce the temperature of the cold source as much as possible, which will consume a lot of energy for refrigeration. In addition, there is a certain discontinuity in the production proc...

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Problems solved by technology

[0002] A large amount of hydrochloric acid will be produced in the concentration process of the amino acid production process, which is generally treated by direct discharge, which not only causes serious environmental pollution, but also poses a great hazard to the health of workers. In actual production, there has been the use of condensers to recover volatile hydrochloric acid. process, but due to the low pressure of volatile hydrogen chloride, the efficiency of the condenser in the condenser is low. In order to improve the efficiency of condensation recovery, it is necessary to reduce the temperature of the cold source as much as possible, which will consume a lot of energy for refrigeration. In addition, there is a certain discontinuity in the production process of amino acids. The cost of the condensation recovery system is very high; at the same time, the evaporation temperature of water is high when heated under normal pressure, and the amino acid concentration process consumes a lot of energy

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