Propulsion type feeding biomass gasification stoves thermal decomposition device

Abstract

The invention relates to a push type feeding biomass gasification furnace pyrolysis tube device, and is characterized in that the invention comprises a heating gas inlet (1), a jacket external tube (2), a pyrolysis tube (3), a box heat exchanger (4), a spiral fin (5), a box heat exchanger flow clapboard (6) and a gas outlet (7), wherein, the heating gas inlet (1) and the gas outlet (7) are respectively welded to the upper and lower sides of the right and left ends of the jacket external tube (2); the pyrolysis tube (3) is concentrically embedded into the jacket external tube (2) every end of which is connected with every end of the pyrolysis tube (3) in the way of sealing and welding by the annular plate. Compared with that only pyrolysis tube is adopted, the invention greatly reduces thedistance from the transmission process of the biomass material to the heating surface, and leads the pyrolysis of the material to be fuller, thus improving the oxidation and gasification process of the lower part.

Description

technical field [0001] The invention relates to the fields of environmental protection, new energy and the like, and in particular relates to a push type feed biomass gasifier pyrolysis device applied to equipment requiring sealed biomass feed, such as a two-stage gasifier. Background technique [0002] Biomass energy as a renewable energy has been paid more and more attention. Biomass gasification for power generation is an effective way to utilize biomass. The gasifier is the key equipment for gasification power generation. The two-stage gasifier has the characteristics of low tar content and high gasification efficiency. It needs to pyrolyze the biomass in the feeding process during the gasification process, which requires that no air enters the biomass during the feeding process. , and has heat transfer function. Generally, the conveying of biomass adopts screw feeder, which advances the material through the rotation of the shaft like a thread, but for some entangled s...

AI Technical Summary

Problems solved by technology

Generally, the conveying of biomass adopts screw feeder, which advances the material through the rotation of the shaft like a screw thread, but for some entangled straw-like biomass, the biomass is easily wound on the shaft, resulting in blockage

In the case of biomass propulsive feeding, if the diameter of the pyrolysis cylinder is large, the distance between the biomass in the core of the pyrolysis cylinder and the cylinder wall is long, so it is difficult to be heated and the pyrolysis is not complete

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