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Self-drying biomass gasification system

A gasification system and biomass technology, applied in the field of self-drying biomass gasification system, can solve the problems of high system cost and large space occupation, achieve full utilization, high water adaptability, and avoid environmental pollution Effect

Active Publication Date: 2016-07-20
GUANGZHOU XINGUANGHE ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The above-mentioned technical solutions all need to set up a special biomass drying device separately, resulting in high system cost and taking up a large space

Method used

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  • Self-drying biomass gasification system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as Figure 1-Figure 2 As shown, the self-drying biomass gasification system of this embodiment includes a self-drying fixed-bed biomass gasification furnace 1, a dust removal device (such as a single-cylinder cyclone dust removal device 2), a diffuser 3, and a wet slag discharge device 4.

[0041] Wherein, the self-drying fixed-bed biomass gasification furnace 1 includes a feeding device 111 (such as a screw conveyor), a blanking pipeline 11, and a furnace body. The furnace body is built with refractory and thermal insulation materials, including a reaction section and a tail ash section 14 , and the reaction section further includes a first gas production section 12 and a second gas production section 13 . The top of the first gas production section 12 is provided with a fuel inlet.

[0042] The tail ash section 14 is cone-shaped and located at the bottom of the furnace body. The bottom of the tail ash section 14 is provided with a slag outlet 142 , and the sid...

Embodiment 2

[0049] The differences between this embodiment and Embodiment 1 are: (1) It also includes a third gas production section, which is located between the first gas production section and the second gas production section; (2) the first gas production section The gas production section, the second gas production section and the third gas production section are all in the shape of a square tube; (3) There are four gas outlets in each gas production section, and in each gas production section, the gas outlets are at the same height Evenly arranged, the angle between adjacent gas outlets is 90°; (4) There is a gas collecting pipe in each gas production section, and the gas collecting pipe includes a vertically arranged main pipe and four branch pipes connected to the main pipe, four The branch pipes are respectively inserted into the four gas outlets correspondingly.

Embodiment 3

[0051] Such as image 3 As shown, the difference between this embodiment and Embodiment 1 is that the feeding device is a two-stage feeding device 7 , which includes a first-stage feeding device 701 , an intermediate material box 702 , and a final-stage feeding device 703 . The primary feeding device 701 is a speed-adjustable cantilever screw conveying device. It includes an inlet at the upper front and an outlet at the end. The feeding port of the silo is connected to the feeding port above the front part of the primary feeding device 701 . The discharge opening at the end of the primary feeding device 701 is an upward slant, and a gland 704 is provided on the slant. The angle formed by the plane where the bevel is located and the axis of the cantilever screw conveying device is 45°. The gland 704 has an automatic reset mechanism (such as a spring 705). In addition, a section of blades before the outlet of the primary feeding device 701 is removed. The outlet of the prim...

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PUM

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Abstract

The invention provides a self-drying biomass gasification system. The self-drying biomass gasification system comprises a self-drying fixed bed biomass gasification furnace, wherein the self-drying fixed bed biomass gasification furnace comprises a furnace body which is arranged in the longitudinal direction, the furnace body comprises a cone-hopper tail ash section which is arranged on the bottom and a reaction section which is arranged above the tail ash section, and a fire grate is arranged between the tail ash section and the reaction section; the bottom of the rail ash section is provided with a slag discharging port, and the side part of the tail ash section is provided with an air inlet; the upper side surface or the top end of the reaction section is provided with a fuel inlet; the self-drying fixed bed biomass gasification furnace further comprises a feeding device and a blanking pipeline; the blanking pipeline is inserted into the fuel inlet; the top end of the blanking pipeline is closed, the side part of the blanking pipeline is provided with a feeding port, and the tail end of the feeding device is communicated with the feeding port; the side part or the top of the blanking pipeline is also provided with a circulating gas outlet, the circulating gas outlet is connected with a gas backflow pipeline, the side part of the tail ash section is provided with a backflow inlet, and the other end of the gas backflow pipeline is connected with the backflow inlet of the tail ash section.

Description

technical field [0001] The invention relates to a self-drying biomass gasification system. Background technique [0002] Biomass is a very important renewable energy, which has the characteristics of renewability, low pollution and wide distribution. The use of biomass as an alternative energy source is of great significance to low-carbon emission reduction, reduction of "greenhouse effect" and improvement of atmospheric acid rain environment. Biomass gasification system is to use biomass to burn in a closed anoxic furnace in a gasifier, and produce combustible gas after dry distillation, pyrolysis and thermochemical oxidation. [0003] Biomass particles usually contain 40%-50% water or even higher, and the more suitable water content for biomass gasification is less than 20%. Thus, biomass pellets usually need to be dried before being gasified. [0004] For example, Chinese patent application 95117448.7 discloses a biomass gasification drying and heating device, which is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10J3/20C10J3/30C10J3/82C10J3/80
Inventor 赵广健
Owner GUANGZHOU XINGUANGHE ENVIRONMENTAL PROTECTION TECH