Reactor and chlorine dioxide generator using the same

Abstract

The invention discloses a reaction kettle. The reaction kettle comprises a shell with a cavity, wherein the cavity of the reaction kettle is partitioned into an inner layer, a middle layer and an outer layer; the inner layer is partitioned into a mixing chamber and a first reaction chamber which are communicated with each other through partitioning parts; the mixing chamber is positioned above the first reaction chamber; the middle layer serves as a heating chamber; the outer layer serves as a second reaction chamber; the first reaction chamber and the second reaction chamber are communicated by holes in the bottoms and through a reaction liquid connecting tube; the mixing chamber and the second reaction chamber are communicated by holes in the tops and through an air connecting tube; a first dosing hole, a second dosing hole and an air outlet which are respectively communicated with the mixing chamber are formed in the top of the shell; a water inlet and a heating hole which are communicated with the heating chamber are formed in the top of the shell; an air inlet which is communicated with the second reaction chamber is formed in the upper part of the shell. The invention further discloses a chlorine dioxide generator employing the reaction kettle. The reaction kettle has the characteristics of compact structure, small size, stable and high product conversion rate and relatively high product yield, and the difficulty of invalid sealing caused by corrosion is avoided.

Description

technical field [0001] The invention relates to a chemical reaction equipment, in particular to a reaction kettle and a chlorine dioxide generator using the reaction kettle. Background technique [0002] At present, there are many brands of chlorine dioxide generators. According to the products produced, they are divided into two types: high-purity chlorine dioxide generators and chlorine dioxide and chlorine mixed disinfectant generators. The latter is the most widely used generator. The existing main problems of chlorine dioxide and chlorine mixed disinfectant generators are as follows: 1. The reaction kettles used in traditional chlorine dioxide generators are mostly tower-like structures, and the conversion rate is not high, many of which are between 70% and 85%. %, and in order to improve the conversion rate, generally a plurality of reactors are connected by pipes, which has the disadvantages of complex structure and large volume; 2, the yield and purity of chlorine di...

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Problems solved by technology

The existing main problems of chlorine dioxide and chlorine mixed disinfectant generators are as follows: 1. The reaction kettles used in traditional chlorine dioxide generators are mostly tower-like structures, and the conversion rate is not high, many of which are between 70% and 85%. %, and in order to improve the conversion rate, generally a plurality of reactors are connected by pipes, which has the disadvantages of complex structure and large volume; 2, the yield and purity of chlorine dioxide are not high; 3, the raffinate contains untreated Chlorate or chlorite, the raw material for the reaction, is added to the water body together with the gas, which will easily lead to excessive chlorate and chlorite; 4. The quality of the reaction vessel is uneven, and the main materials are polytetrafluoroethylene and titanium alloy etc., the former has a short service life, and the latter is more expensive

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