一种干燥筒原料检测装置及其检测工艺

The detection device, which combines a grinding unit and a near-infrared spectrometer, solves the problem of low accuracy of online moisture sensors, enabling high-precision, real-time detection of moisture in raw materials within the drying drum. This improves the strength and uniformity of chemical fiber filaments and ensures the stability of product quality.

CN120948155BActive Publication Date: 2026-07-17JINHUA HENGXING CHEM FIBRE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JINHUA HENGXING CHEM FIBRE CO LTD
Filing Date
2025-09-16
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing online moisture sensors have low detection accuracy and are easily interfered with in the drying cylinder, making it impossible to achieve closed-loop control. This results in poor strength and uniformity of chemical fiber filaments and unstable product quality.

Method used

The detection device combines a grinding unit and a near-infrared spectrometer. It prepares fine and uniform powder by grinding the sample and cooling it with liquid nitrogen, and then detects it with a near-infrared spectrometer. The sampling, cooling, grinding and detection are integrated at the bottom of the drying cylinder to achieve automated operation.

Benefits of technology

It improves detection accuracy, reduces interference, enables real-time and accurate moisture detection, enhances production stability and product quality, and reduces human intervention.

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Abstract

本发明公开了一种干燥筒原料检测装置及其检测工艺,包括干燥筒,所述干燥筒底部转动设置有用于研磨样品的研磨单元;所述研磨单元上设有取样单元,所述干燥筒底部设有安装罩,所述取样单元包括取样孔及与研磨单元固定连接的取样管和进料管;所述安装罩上设有与取样孔相适配的进料孔,所述进料管上设有转动板;所述干燥筒上设有光谱仪,所述光谱仪上设有与研磨单元相衔接的接料盘,所述研磨单元包括与接料盘相配合的出料孔;本发明通过液氮冷却和研磨单元将样品制备成细小且均匀的粉末,彻底消除了原料颗粒大小、形状及堆积密度对水分检测的干扰,再结合近红外光谱仪进行检测,其结果堪比实验室精度,远优于现有在线传感器。
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