A petrochemical fluidized bed reactor

By designing the feeding assembly and transmission structure in the fluidized bed reactor and using an L-shaped scraper to clean the residue on the inner wall of the feed pipe, the problem of outlet blockage was solved, and the smooth transport of raw materials and stable operation of the reactor were achieved.

CN224485946UActive Publication Date: 2026-07-14YAN CHI XIAN NING LU SHI HUA YOU XIAN ZE REN GONG SI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YAN CHI XIAN NING LU SHI HUA YOU XIAN ZE REN GONG SI
Filing Date
2025-07-25
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

When fluidized bed reactors process liquid or slurry feedstocks such as heavy oil, residual oil, and coal tar, residues can easily form at the discharge port, leading to blockages and affecting the normal operation of the reactor.

Method used

A petrochemical fluidized bed reactor was designed, comprising a feeding assembly including a feed pipe and a conveying pipe. An L-shaped scraper is installed inside the sleeve. The scraper is driven to rotate and clean the inner wall of the feed pipe through a transmission structure. The stable meshing of the support plate and support frame with the gear and gear ring is maintained to prevent the scraper from deviating and ensure unobstructed pipeline.

Benefits of technology

Effectively cleans residues adhering to the inner walls of the feed pipe and conveying pipe, prevents blockage of the discharge port, ensures smooth material transport, and guarantees normal operation of the reactor.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224485946U_ABST
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Abstract

The utility model provides a kind of petroleum chemical fluidized bed reactor, including reactor body, the top of the reactor body is provided with feed assembly, the feed assembly includes the feed pipe that is communicated with the top of reactor body, the upper portion of the feed pipe is provided with feed pipe, the outside of the top end of the feed pipe and the outside of the bottom end of feed pipe are jointly slidably connected with sleeve, the inner wall of the sleeve is fixedly connected with L-shaped scraper, the feed assembly further includes the transmission structure for driving L-shaped scraper rotation and cleaning the inner wall of feed pipe, which is arranged above the reactor body. When the inner wall of the feed pipe and the feed pipe is left, the L-shaped scraper can clean the inside of the feed pipe and the feed pipe, and the heavy oil, residual materials such as residual oil adhering to the inner wall of the pipe can be scraped off, so that the feed pipe and the feed pipe can smoothly convey the raw materials, and the normal operation of the reactor body is ensured.
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