A wastewater concentration device for analytical reactor

The wastewater concentration device in the analytical vessel, which combines multi-stage falling film evaporators and heat exchangers, solved the problem of NO3- and cyanide accumulation caused by nitrogen-containing substances in the reclaimed water workshop, and achieved stable material circulation and improved resource utilization throughout the plant.

CN224279817UActive Publication Date: 2026-05-26YINGCHUANG SANZHENG YINGKOU FINE CHEM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YINGCHUANG SANZHENG YINGKOU FINE CHEM CO LTD
Filing Date
2025-06-11
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

During the material circulation process in the chlor-alkali workshop, the accumulation of NO3-carbonate and cyanide generated during the treatment of nitrogen-containing substances in the reclaimed water workshop affects the stable circulation of materials throughout the plant.

Method used

A wastewater concentration device using an analytical vessel is employed, comprising a first-effect, second-effect, and third-effect falling film evaporator. Through the combination of multi-stage evaporation and heat exchangers, efficient concentration of wastewater is achieved, reducing the accumulation of NO3- and cyanide.

Benefits of technology

To achieve stable material circulation throughout the plant, improve resource utilization, reduce costs, promote cleaner production, and enhance the company's competitiveness.

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Abstract

This utility model discloses a wastewater concentration device for an analytical reactor, comprising a first-effect falling film evaporator, a second-effect falling film evaporator, and a third-effect falling film evaporator. The input side of the first-effect falling film evaporator is equipped with a raw liquid tank. A first-stage plate heat exchanger is installed between the raw liquid tank and the first-effect falling film evaporator. A second-stage plate heat exchanger is installed between the first-effect and second-effect falling film evaporators. A distilled water tank is installed between the second-effect and third-effect falling film evaporators. This device achieves stable circulation of materials throughout the plant, improves resource utilization, reduces costs and increases efficiency, and promotes cleaner production. It empowers green transformation and lays a solid foundation for the company to create a core competitive advantage for its cyanuric chloride products.
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