一种多聚甲醛生产工艺装置
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WUXI JIURUN CHEMICAL TECHNOLOGY CO LTD
- Filing Date
- 2023-12-07
- Publication Date
- 2026-07-17
AI Technical Summary
The formaldehyde-containing exhaust gas generated during the existing paraformaldehyde production process has not been effectively absorbed and recycled, resulting in environmental pollution and resource waste.
The process employs a combination of formaldehyde evaporation unit, freeze-drying unit, and exhaust gas treatment unit, including a pre-evaporator, flash separator, falling film evaporator, spray freeze chamber, vibrating fluidized bed dryer, and multi-stage scrubbing tower. Formaldehyde is recovered through multi-stage evaporation and absorption technology, temperature and pressure are controlled to reduce self-polymerization, and exhaust gas is absorbed using inert gas circulation drying and a vacuum environment.
It achieves complete absorption and recycling of formaldehyde exhaust gas during the production of paraformaldehyde, improving production efficiency, reducing environmental pollution, and the product can be used in the production of high value-added chemicals.
Smart Images
Figure CN117942594B_ABST