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Internal combustion type biomass gasifier

A technology of gasification furnace and biomass, which is applied in the direction of gasification process, gasification catalyst, and the manufacture of combustible gas, etc., which can solve the problem of large-scale promotion and use of down-suction gasification furnaces, large damage to gasification equipment, and unfavorable gas quality. Gas volume and other issues, to achieve the effect of improving utilization rate and gas quality, quick and convenient removal, and reducing damage

Active Publication Date: 2016-05-25
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These problems not only cause waste of materials, but also are not conducive to the improvement of gas volume and gas quality, and also cause great damage to gasification equipment, which limits the large-scale promotion and use of downdraft gasifiers.

Method used

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  • Internal combustion type biomass gasifier
  • Internal combustion type biomass gasifier
  • Internal combustion type biomass gasifier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] like figure 1 As shown, an internal combustion biomass gasification furnace includes a furnace body 1 and a furnace 2, a supporting base 6 is provided at the lower part of the furnace body, and an ash dropping device 4, an ash discharging device 5, and an ash dropping device 4 are arranged in the base 6 Installed on the ash-discharging device 5, the two cooperate. A sealing cover 22 is arranged on the upper part of the furnace body 1, and the sealing cover 22 is connected with the screw feeding device 8, and the material enters the screw feeding device 8 through the hopper 7. In the middle of the upper part of the sealing cover 1, there is a stirring joint 27 driven by the perforation lifting device 14 through gear transmission and driven by the lifting thread suspension shaft 17. The stirring joint 27 is placed in the furnace 2, and the stirring joint 27 can move up and down. Lifting thread suspension shaft 17 part is built in broken perforated rotating hollow shaft 1...

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Abstract

Provided is an internal combustion type biomass gasifier. A sealing cover is arranged on the upper portion of a gasifier body, the sealing cover is connected with a screw feeder, and materials enter the screw feeder through a hopper. A stirring connector which is in transmission with a perforation lifting device via a gear and is driven by a lifting thread suspension shaft is arranged in the middle of the upper portion of the sealing cover and is located in a hearth, and the stirring connector can rotate and also can move vertically. Lateral gas discharge is adopted based on the down-draft type gasification principle, the staying time of gas in the gasifier is prolonged, the temperature of the gas discharged out of the gasifier is lowered, and the loss of heat is reduced. A tooth-type water cooling ash falling device can make water in a hollow water cooling tooth shaft generate vapor with high-temperature charcoal ash and also can reduce the influence of ash falling on the ash content in combustible gas, and the tar content in the generated combustible gas is relatively low; meanwhile, the oxygen content in the material gasification process is reduced, the N2 content in the combustible gas is reduced, material waste caused by direct combustion is reduced, the gas yield is increased, and the fuel gas quality is improved.

Description

technical field [0001] The invention relates to a biomass gasification device, in particular, it provides a novel biomass gasification furnace. Background technique [0002] The downdraft gasifier operates under a slight negative pressure and does not require high sealing. The calorific value of the combustible gas produced is relatively high, the tar content is relatively small, but the ash content in the combustible gas is high, and the temperature of the combustible gas is high. The downdraft gasifier adopts the direct combustion method, and many materials are directly burned in the furnace, which reduces the combustible gas output per unit mass of material, that is, reduces the gas production; the waste gas produced by combustion and the combustible gas produced by cracking The mixing reduces the calorific value of the gas; the gas produced by the downdraft type has a high furnace temperature, which will cause great damage to the equipment. These problems not only cause...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/00C10J3/72C10J3/84
CPCC10J3/00C10J3/72C10J3/84C10J2200/06C10J2200/154C10J2300/0916
Inventor 许东来周继魏立娇崔爱军王军鹏
Owner BEIJING UNIV OF TECH
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