Wear-resistant structure of wear-resistant special steel boiler coal drop pipe

By using a combination structure of components such as fixing plates, connecting rods, nuts, and inner lining tubes on the wear-resistant special steel boiler coal chuting pipe, the problems of protection and heat insulation at the weld seam are solved, the stability and wear resistance of the weld seam are achieved, and safety hazards are reduced.

CN224278501UActive Publication Date: 2026-05-26JIANGSU TIANHUI ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU TIANHUI ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-08-06
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The weld seams of existing wear-resistant special steel boiler coal chutes are difficult to protect effectively, making them susceptible to impact, cracks, and deformation. They are also not good at heat insulation, posing safety hazards.

Method used

The system uses a combination of components such as a fixing plate, connecting rod, first nut, inner liner tube, upper protective tile, lower protective tile, mounting plate, connecting plate, mounting rod, and second nut. It achieves tight fit and thermal insulation protection through threaded connection, and the inner liner tube is made of ceramic material for heat insulation.

Benefits of technology

It effectively prevents friction and deformation at the weld, reduces safety hazards, improves performance, reduces weld heat, and enhances connection stability and wear resistance.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224278501U_ABST
    Figure CN224278501U_ABST
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Abstract

The utility model discloses a wear-resistant structure of a wear-resistant special steel boiler coal drop pipe, and relates to the technical field of wear resistance of coal drop pipes. The abrasion-resistant structure of the abrasion-resistant special-steel boiler coal drop pipe comprises a guide pipe, and a connecting pipe is welded to one end of the guide pipe; the protection mechanism is arranged on the outer side of the guide pipe and comprises a fixing plate and a lining pipe, the lining pipe is fixed to the inner side of the connecting pipe and the inner side of the guide pipe, and the fixing plate is fixedly installed on the outer side of the connecting pipe and the outer side of the guide pipe; and the thermal insulation mechanism is arranged on the outer side of the guide pipe and located on the outer side of the protection mechanism. A connecting rod is arranged in a hole of a fixing plate, two sets of first nuts are installed on the outer side of the connecting rod in a threaded mode, the outer sides of the first nuts are attached to the outer side of the fixing plate, a connecting pipe and a guide pipe are tightly attached, and the situation that the welding position of the connecting pipe and the guide pipe is subjected to impact vibration to generate friction, so that the connecting pipe and the guide pipe crack and deform is prevented; interfaces of the connecting pipe and the guide pipe are kept in butt joint, and the using effect is improved.
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