System and technology for producing sodium hypochlorite by tower-type continuous method

Abstract

The invention relates to a system and a technology for producing sodium hypochlorite by a tower-type continuous method. The system comprises a sodium hypochlorite reaction device and a tail chlorine absorption device, the sodium hypochlorite reaction device comprises a sodium hypochlorite reacting tower, a sodium hypochlorite circulating groove, a sodium hypochlorite circulating pump and a sodium hypochlorite cooler which are sequentially communicated, the tail chlorine adsorbing device comprises a tail chlorine absorption tower, an alkaline liquid circulating groove, an alkaline liquid circulating pump and an alkaline liquid cooler which are sequentially communicated, the sodium hypochlorite cooler is communicated with an upper portion of the sodium hypochlorite reacting tower, the sodium hypochlorite reacting tower is communicated with a chlorine pipeline and an ORP (oxidation-reduction potential) detector, the alkaline liquid cooler is communicated with an upper portion of the tail chlorine absorption tower, and a top portion of the sodium hypochlorite reacting tower is communicated with a lower portion of the tail chlorine absorption tower. By introducing the online ORP detector, the sodium hypochlorite produced by the system is ensured to meet the quality requirement, and the system and the technology for producing the sodium hypochlorite have the advantages of low energy consumption, high efficiency, high quality, continuity and stability in production and the like.

Description

technical field [0001] The invention relates to a system for producing sodium hypochlorite, in particular to a system and a process for producing sodium hypochlorite by a tower continuous method. Background technique [0002] Sodium hypochlorite is a multi-purpose and multi-functional chemical product, which can be used for disinfection, sterilization and as a bleaching agent in the textile and paper industry. Chloroisocyanuric acid. With the continuous development of urbanization in my country, more and more urban water supply systems use sodium hypochlorite disinfection and sterilization technology to replace chlorine gas disinfection and sterilization technology, which puts forward higher requirements for large-scale and high-quality sodium hypochlorite production. my country's demand for sodium hypochlorite and its quality requirements determine that the production technology of sodium hypochlorite must have low energy consumption, high efficiency, high quality, and con...

AI Technical Summary

Problems solved by technology

Absorbing chlorine gas in a packed tower with liquid caustic soda also has the disadvantages of unstable product quality, easy to collect salt and clogging, etc.

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