Spiral-flow type biomass semi-gasifier

Abstract

A spiral-flow type biomass semi-gasifier comprises a furnace body composed of an inner tank with a bottom and an outer tank without a bottom, the bottom of the furnace body is provided with a primary air inlet channel, the upper part of the furnace body is provided with a secondary air inlet channel, the top of the furnace body is provided with a double-layer fire stop collar and a chimney communicated with the fire stop collar, and the secondary air inlet channel comprises a plurality of integrated air channels which are arranged on the periphery of a cylinder or a cone at uniform intervals and extend outside along the cylinder or the cone. The invention adopts the technical scheme that the secondary air inlet channel provided with a plurality of integrated air channels extending outside along a cylinder or a cone on the periphery of the cylinder or the cone at uniform intervals is adaptively connected with and arranged at the upper part of inner tank with a bottom, the defects that combustible gas agitation in the semi-gasifier is not enough and can not be fully mixed with combustible biomass gas to be uniform or form burning whirl concentratedly and full action of thermal efficiency is influenced as the secondary air inlet channel in the existing biomass semi-gasifier adopts two rows or multiple rows of pores arranged evenly for straight-line air intake are overcome, so that the invention can be used by matching with various biomass fuel semi-gasifiers and semi-ovens.

Description

technical field [0001] The invention relates to a swirl type biomass semi-gasification furnace. Background technique [0002] The secondary air inlet channels of various existing biomass semi-gasifiers use two or more rows of uniformly arranged small holes to enter the air in a straight line. The processing of these small holes requires special processing equipment and requires high processing accuracy, which leads to The cost increases, and the structure does not stir the combustible gas in the semi-gasification furnace enough, and cannot fully and evenly mix with the combustible biomass gas to form a combustion swirl, which affects the full play of thermal efficiency. Contents of the invention [0003] In view of the above situation, the object of the present invention is to provide a kind of swirl type biomass semi-gasification furnace, which is simple in structure and convenient to operate, and can fully stir the combustible gas of the semi-gasification furnace to form...

AI Technical Summary

Problems solved by technology

[0002] The secondary air inlet channels of various existing biomass semi-gasifiers use two or more rows of uniformly arranged small holes to enter the air in a straight line. The processing of these small holes requires special processing equipment and requires high processing accuracy, which leads to The cost is increased, and the structure is not enough to stir the combustible gas in the semi-gasifier, so it cannot be fully and evenly mixed with combustible biomass gas and concentrated to form a combustion swirl, which affects the full play of thermal efficiency

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