A biomass gasifier

By employing a double-layer reaction cylinder structure and a comprehensive heating mechanism, the problem of uneven heat distribution in traditional biomass gasifiers has been solved, achieving efficient conversion of biomass raw materials and generation of combustible gases, thus improving the overall performance of the gasifier.

CN119570529BActive Publication Date: 2025-10-28JIANGSU HENGSEN ZHENBANG NEW ENERGY TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202411984843.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-10-28
Estimated Expiration
2044-12-31

AI Technical Summary

Technical Problem

The uneven heat distribution of traditional biomass gasifiers leads to low thermal energy utilization efficiency and low gas circulation efficiency, and complex system maintenance.

Method used

The double-layer reaction cylinder structure combines external heating (heat generated by the oxide layer and the heat transfer chamber) with internal heating (rotary rod vent and circulation pipe system) to ensure stable and uniform temperature distribution in the drying layer, pyrolysis layer, reduction layer and oxide layer. The circulation pump and sealing head ensure a continuous and stable supply of heat and effective gas circulation.

Benefits of technology

It accelerates the conversion process of biomass raw materials, improves the efficiency of combustible gas generation, enhances the overall efficiency and product quality of the gasifier, and avoids unnecessary heat loss and gas leakage.

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Abstract

This invention discloses a biomass gasification furnace, belonging to the field of biomass gasification technology. It includes a tank body with an internal drying layer, pyrolysis layer, reduction layer, and oxidation layer, converting biomass raw materials into combustible gas through four reaction stages. The tank body contains a double-layered reaction cylinder: an outer heat-conducting cylinder and an inner permeable cylinder, with a gas storage chamber between them for collecting combustible gas. The heat-conducting cylinder has good thermal conductivity, while the permeable cylinder allows gas to pass through smoothly. High-temperature gas is injected around the heat-conducting cylinder to transfer heat to the drying, pyrolysis, and reduction layers. External heating is achieved through a heat transfer chamber in the tank body's interlayer and a spiral channel in the heat-conducting cylinder; hot gas enters the heat transfer chamber and the outlet chamber from the bottom of the tank body to heat the interior of the reaction cylinder. Internal heating is achieved through vent holes and a ventilation mesh inside the rotating rod; hot gas is transported to the drying, pyrolysis, and reduction layers to accelerate the reaction rate.
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