Thermal oxidation furnace and thermal oxidation process
By installing a circulating flue gas pipe and a coolant spray end in the thermal oxidizer, the problems of oxygen content and combustion temperature control were solved, NOx generation was reduced, the life of the Venturi extension tube was extended, and efficient waste gas treatment was achieved.
CN115307157BActive Publication Date: 2026-06-12SHANGHAI HEYUAN ENVIRONMENTAL PROTECTION SCI & TECH CO LTD +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI HEYUAN ENVIRONMENTAL PROTECTION SCI & TECH CO LTD
- Filing Date
- 2022-06-10
- Publication Date
- 2026-06-12
AI Technical Summary
⚠Technical Problem
In existing thermal oxidizers, it is difficult to control the oxygen content and combustion temperature, which easily generates NOx. Furthermore, the Venturi extension tube is easily eroded, affecting its service life and subsequent processes.
⚗Method used
By setting up a circulating flue gas pipe and a coolant spray end, the circulating flue gas is fully mixed with the ignited waste gas to be treated, reducing the combustion temperature. The coolant spray protects the Venturi extension tube and controls the oxygen content to suppress NOx formation.
🎯Benefits of technology
It effectively reduces NOx generation, extends the service life of the venturi extension tube, ensures that the treated products meet national emission standards, and simplifies the process flow.
✦ Generated by Eureka AI based on patent content.
Smart Images
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Abstract
The application discloses a thermal oxidation furnace and a thermal oxidation process. The thermal oxidation furnace comprises a combustion zone and a cooling zone connected in sequence from top to bottom; the bottom of the combustion zone is provided with a Venturi extension pipe extending to the lower part of the cooling zone; the combustion zone comprises a burner and a combustion chamber from top to bottom, the burner is used for igniting the waste gas and oxidant delivered to the thermal oxidation furnace and then delivering them to the combustion chamber; the cooling zone comprises a cooling liquid spraying end, the cooling liquid spraying end is arranged at the connection between the combustion zone and the cooling zone and is in communication with the nested space formed by the cooling zone and the Venturi extension pipe; the thermal oxidation furnace is also provided with a circulating flue gas pipe; the first port of the circulating flue gas pipe is arranged in the cooling zone and is in communication with the nested space, and the second port of the circulating flue gas pipe is arranged at the inlet of the combustion chamber. The thermal oxidation furnace can reduce the generation of NO x , effectively prevent the ablation of the Venturi extension pipe, and the product treated by the thermal oxidation furnace can be directly discharged after subsequent cooling treatment.
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