An automated polyurethane production apparatus
By combining online near-infrared sensors and optical probes with a viscosity monitoring mechanism, the problem of automated measurement of NCO value, moisture content and viscosity in polyurethane production has been solved, realizing real-time and accurate monitoring of the polyurethane production process and improving product quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGLU JIAOKE TECHNOLOGY CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-24
AI Technical Summary
In current polyurethane production processes, the testing of NCO value, moisture content, and viscosity mainly relies on manual methods. This results in long testing times, potential sample damage and the introduction of impurities, and makes it difficult to achieve real-time and accurate monitoring, thus affecting product quality.
By employing an online near-infrared sensor and optical probe combined with a viscosity monitoring mechanism, the system achieves automated measurement of NCO value, moisture content, and viscosity. The NCO concentration and moisture content are detected through infrared light absorption, and the viscosity monitoring mechanism adjusts the rotor speed in real time to accurately monitor viscosity changes. Combined with a stirring assembly and temperature control system, the system ensures uniform reaction.
It enables real-time and precise monitoring of the polyurethane production process, reduces human interference, improves product quality stability and production efficiency, and avoids performance differences caused by uneven local reactions.
Smart Images

Figure CN224541735U_ABST