A kind of abandoned material pneumatic conveying anti-blocking device

By wrapping electric heating tape and U-shaped rings around the pneumatic conveying pipeline, combined with insulation cotton, the problem of blockage caused by the accumulation of waste samples at the bends in the pipe was solved, achieving efficient anti-blocking effect and low-cost conveying optimization.

CN224377044UActive Publication Date: 2026-06-19HUADIAN LONGKOU POWER GENERATION CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUADIAN LONGKOU POWER GENERATION CO LTD
Filing Date
2025-08-05
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In the coal sample preparation process, when the moisture content of the discarded sample is high, it is easy for it to pile up at the bend of the pipe and cause the pipe to become blocked. Existing anti-blocking structures are complex, costly, or unsuitable.

Method used

An electric heating belt is wrapped around the pneumatic conveying pipeline, combined with a U-shaped ring and insulation cotton. Heating reduces the accumulation of waste samples at the bends in the pipe, and the heating power is adjusted by monitoring the resistance through a power pump.

🎯Benefits of technology

It achieves full-coverage heating of the bend, reduces the accumulation of waste samples, avoids pipe blockage, improves conveying efficiency, and has a simple structure and low cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

A pneumatic conveying anti-clogging device for waste materials includes a pneumatic conveying pipeline, an electric heating belt, and a pneumatic conveyor. The pneumatic conveyor has a conveying port, and the pneumatic conveying pipeline is connected to the conveying port of the pneumatic conveyor. The pneumatic conveying pipeline includes a straight pipe and a bend. The heating belt is installed on the pneumatic conveying pipeline and is bolted around the junction of the straight and bend pipes. This invention allows for more flexible arrangement of the electric heating belt, resulting in better anti-clogging performance and enabling full coverage of bends or straight pipes at any location. When the moisture content of the waste sample is high, the heating effect of the electric heating belt can directly reduce the accumulation of waste sample at the bend, thus effectively preventing pipeline blockage.
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