Biomass rotary cracking gasifier

By designing a biomass rotary pyrolysis gasifier, the problem of handling large pieces of biomass feedstock has been solved, achieving continuous gasification and efficient pyrolysis, and improving the environmental performance and thermal efficiency of the equipment.

CN223688278UActive Publication Date: 2025-12-19CHINA COAL (SHENZHEN) RES INST CO LTD
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Patent Information

Application Number
CN202423167286.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-12-19
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

Existing biomass gasification technology is difficult to process large biomass raw materials, requiring pretreatment into small particles, which results in complex equipment, high energy consumption, and poor environmental performance.

Method used

Design a biomass rotary pyrolysis gasifier, including a rotating inner shell, a furnace outer shell, a spiral feeder, and a porous gas inlet pipe. The continuous gasification of large biomass feedstock is achieved by the rotation of the inner shell and the propulsion of the spiral feeder. The oscillation device is combined to prevent sticking, and the gasifying agent is provided through the porous gas inlet pipe. The staged heating achieves efficient pyrolysis.

Benefits of technology

It enables continuous gasification of large biomass feedstocks without pretreatment, improving the environmental performance and thermal efficiency of the equipment and reducing energy consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a biomass rotary cracking gasifier which comprises a rotary inner shell, a furnace body outer shell, a spiral feeding piece, a feeding port and a discharging port. The furnace body outer shell is arranged outside the rotating inner shell, the rotating inner shell rotates relative to the furnace body outer shell, and the feeding port and the discharging port are formed in the two ends of the rotating inner shell respectively. The spiral feeding piece is arranged in the rotating inner shell in a self-axis rotating mode, and the spiral feeding piece is used for pushing the biomass raw materials in the rotating inner shell to move in the direction from the feeding port to the discharging port. According to the biomass rotary cracking gasifier disclosed by the utility model, the biomass raw material does not need to be crushed to form small particles before being fed, so that the pretreatment on the biomass raw material is saved, and large biomass raw materials can be continuously gasified in one device.
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