Biomass circulating-fluidized-bed gasification device

A technology of circulating fluidized bed and fluidized bed gasifier, which is applied in gasification process, granular/powder fuel gasification, manufacture of combustible gas, etc., can solve the problem of lack of fly ash adsorption, alkali metal slagging tar corrosion, Blockage and other problems to achieve the effect of reducing condensation corrosion, reducing slagging, and improving thermal efficiency

Pending Publication Date: 2018-02-27
ZHEJIANG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Biomass gas enters the gas-fired boiler for combustion after being dedusted by the primary and secondary separators. The lack of adsorption of fly ash may easily cause alkali metal slagging and tar corrosion and blockage on the heating surface of the boiler and tail

Method used

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  • Biomass circulating-fluidized-bed gasification device
  • Biomass circulating-fluidized-bed gasification device

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Embodiment

[0034] Such as figure 1 The biomass circulating fluidized bed gasification device shown includes a fluidized bed gasifier body 1, an air supply mechanism connected to the bottom end of the fluidized bed gasifier body 1, and an air supply mechanism arranged on the fluidized bed gasifier body 1. The feeding mechanism on the side, as well as the first-stage cyclone separator 7 and the feeder 8 forming a circulating fluidized structure with the fluidized bed gasifier body 1 .

[0035] The body 1 of the fluidized bed gasifier includes an upper dilute phase area, a lower dense phase area and a bottom air chamber. The side of the bottom air chamber of the fluidized bed gasifier body 1 is provided with a light oil burner and a fluidized bed gasifier body The 1 air chamber is connected, and the upper part of the fluidized bed gasifier body 1 air chamber is equipped with an air distribution plate and a wind cap.

[0036] The feeding mechanism includes a ground fabric bin 2, a hoist 3, a ...

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Abstract

The invention relates to a biomass circulating-fluidized-bed gasification device, which comprises a fluidized-bed gasification furnace body, an air supply mechanism, a material feed mechanism, a primary cyclone separator and a material return apparatus, wherein the air supply mechanism is connected with the bottom end of the fluidized-bed gasification furnace body; the material feed mechanism is arranged on the side edge of the fluidized-bed gasification furnace body; the primary cyclone separator and the material return apparatus form a circulating fluidization structure together with the fluidized-bed gasification furnace body; the fluidized-bed gasification furnace body, the primary cyclone separator and the material return apparatus are mutually connected in sequence; the material return apparatus is connected with a material return fan and a steam supply mechanism respectively. According to the device provided by the invention, the material is returned by adopting steam and the generation of returned material slagging is avoided.

Description

technical field [0001] The invention relates to the technical field of biomass thermochemical equipment, in particular to a biomass circulating fluidized bed gasification device. Background technique [0002] Gasification is an important means of clean utilization of coal, biomass, garbage, sludge and other organic wastes, and has been widely used in chemical industry, metallurgy, civil and industrial gas and other fields. The performance of gasification technology directly affects the healthy development of these industries, plays a pivotal role in the control of energy conservation and emission reduction, and is an important guarantee for the realization of relevant national control goals. Coal gasification technology has been developed for hundreds of years, and the gasification technology of biomass and other organic wastes has also developed rapidly since the 1980s. [0003] In recent years, with the country's emphasis on biomass utilization technology, biomass gasific...

Claims

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Application Information

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IPC IPC(8): C10J3/56C10J3/84
CPCC10J3/56C10J3/84C10J2300/1603C10J2300/1223
Inventor 方梦祥王勤辉边疆余春江付建忠奚爽王涛岑建孟骆仲泱
Owner ZHEJIANG UNIV
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