A blowout prevention and slag falling device based on thermal expansion and contraction compensation

By introducing a combination structure of compensation disc and expansion ring into the slag discharge pipe, the structural deformation and sealing failure caused by thermal expansion and contraction of traditional slag discharge pipes are solved, achieving sealing performance and convenient maintenance under high temperature environments, and improving the safety and operational stability of the equipment.

CN224382140UActive Publication Date: 2026-06-19山东盛宝传热科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
山东盛宝传热科技有限公司
Filing Date
2025-07-01
Publication Date
2026-06-19

AI Technical Summary

⚠Technical Problem

Traditional slag discharge pipes suffer from structural deformation, sealing failure, and maintenance difficulties due to thermal expansion and contraction at high temperatures, and replacement costs are also high.

⚗Method used

The anti-spray slag discharge device based on thermal expansion and contraction compensation includes a slag discharge pipe, a compensation plate, a graphite packing and an expansion ring. The combination of the expansion ring and the compensation plate actively counteracts the stress of thermal expansion and contraction. A slag inlet box is set up to buffer large flow rates, achieving sealing performance and convenient maintenance.

🎯Benefits of technology

It effectively prevents deformation or breakage of the slag discharge pipe, avoids sealing leakage, reduces maintenance difficulty and cost, and improves equipment safety and operational stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of anti-spraying slag and slag falling device based on thermal expansion and cold shrinkage compensation, it is related to industrial furnace equipment technical field, including slag falling pipe and inlet slag box, the outlet end of slag falling pipe is successively sleeved with compensating disc, graphite packing and expansion ring, the bottom of compensating disc is equipped with fixed flange, fixed flange is fixedly arranged at inlet slag box end, and the other end of inlet slag box is equipped with inlet slag mouth;When temperature rises, slag falling pipe is heated and expands axially, releases stress through compensating disc, avoids deformation or fracture of slag falling pipe, simultaneously, expansion ring is filled with gap by thermal expansion, and double seal is formed with graphite packing, to avoid furnace ash or molten slag leakage;When temperature decreases, expansion ring resets, to avoid stress concentration of pipeline;Through the combination of expansion ring and compensating disc, the stress generated by thermal expansion and cold shrinkage is actively offset, the second disc body and the third disc body are detachably connected by bolts, the graphite packing and the expansion ring can be replaced individually, without the need to disassemble the pipeline as a whole, convenient maintenance.
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