Multi-path deslagging gasification furnace with central jet flow

By separating the central jet pipe from the slag discharge pipe, improving the air intake method, and adopting cooling measures, the problem of damage to the central jet pipe in traditional fluidized bed gasifiers has been solved, achieving efficient and stable operation and high carbon conversion rate of the gasifier.

CN224299161UActive Publication Date: 2026-05-29SHANGHAI BICHENG TECH CO LTD
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Patent Information

Application Number
CN202322209238.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-08-16
Publication Date
2026-05-29
Estimated Expiration
2033-08-16

AI Technical Summary

Technical Problem

The central jet tube of a traditional fluidized bed gasifier is prone to damage at high temperatures, affecting the long-term stable operation of the gasifier, and also results in high fly ash emissions and low carbon conversion rate.

Method used

By separating the central jet pipe from the slag discharge pipe, improving the air intake method, optimizing the slag discharge system, and adopting a zoned structure and cooling measures, including a water spray ring pipe and a cooling ring pipe, damage to the central jet pipe can be avoided and gasification efficiency can be improved.

Benefits of technology

This has enabled the gasifier to operate stably for a long period of time, improved the carbon conversion rate, prevented the discharge of fine powder, and improved the gasification efficiency.

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Abstract

The utility model relates to a multi-path deslagging gasification furnace with central jet flow. The multi-path deslagging gasification furnace comprises a furnace body, a carbon-containing substance inlet, a conical distributor, a fluidizing gas inlet, a central jet flow pipe, a deslagging pipe, a powder discharge port, a slag falling inclined pipe, a synthesis gas outlet and gas-solid separation equipment, the furnace body is divided into a dilute-phase zone, a dense-phase zone, a high-temperature oxidation zone, a gas chamber and a slag cooling chamber from top to bottom. According to the utility model, the central jet pipe is separated from the deslagging pipe, so that the air inlet mode is improved, the deslagging system is optimized, and the central jet pipe is prevented from being damaged at high temperature. The gasification furnace device is simple in structure, no fine powder is discharged in the whole gas production process, the gasification efficiency is high, and long-period stable operation of equipment is easy to realize.
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