Ignition device for biomass gasification furnace and using method thereof

Abstract

The invention relates to an ignition device for a biomass gasification furnace and a using method thereof. In the device, an ignition bar formed by a heating wire and a ceramic tube element is vertically arranged in a three-way inlet tube of the biomass gasification furnace; the upper end of the ceramic tube element wound with the heating wire is positioned above a grate; the biomass gasificationfurnace are filled by granular biomass materials and compacted; the biomass materials are closely contacted with the heating wires; after the ignition bar is electrified, the biomass materials at theperiphery of the ignition bar is directly heated; a draught fan is opened after 10 to 20 seconds of heating, air is introduced to the bottom of the gasification furnace from the lateral side of the upper section of the ignition bar; the power supply of the ignition bar is closed after the electrification lasts for 10 to 20 seconds; and the ignition bar is twitched downwards and is rotated to ensure that the ignition bar is retracted inside the three-way inlet tube, the ignition bar is separated from the biomass material subjected to high-temperature gasification reaction with the ignition bar, and the air is introduced into the biomass gasification furnace from clearance between the upper end of the ignition bar and the inlet tube to maintain constant performance of the gasification reaction. The ignition device has the advantages of high success rate of ignition, short ignition time, simple and convenient operation and safe use.

Description

technical field [0001] The invention relates to an ignition device for a biomass gasification furnace and a using method thereof. Background technique [0002] my country is a large agricultural country with abundant biomass resources. Traditional treatment methods (cooking, field burning, and open-air accumulation) not only result in low-efficiency utilization of biomass resources, but also seriously pollute the environment. The in-depth development and utilization of biomass energy, an abundant renewable resource in rural areas, is an inevitable trend in the development of the energy industry in the future, and it is also the only way to ensure the sustainable development of society. In recent years, some household or small-scale biomass gasifier devices have appeared, which is an important way to solve energy shortages, promote the construction of a new rural well-off society, and realize efficient ecological agriculture. [0003] The commonly used biomass gasification f...

AI Technical Summary

Problems solved by technology

This ignition method mainly has the following problems: First, the success rate is not high. When using the above ignition method, the timing of the ignition and the start of the blower must be coordinated with each other, otherwise it is easy to fail to ignite; Burns and safety accidents occur; the third is that the filling is carried out in multiple times, and the operation is cumbersome

[0004] Chinese Patent Application No. 200510114878.9 (Gasifier Start-Up Device) discloses a gasifier start-up device, which is designed with two sets of burners to cyclically ignite and has a complex structure, and is suitable for large-scale biomass gasifiers , higher cost for domestic or small biomass gasifiers

The Chinese Patent No. ZL200720146012.0 (Electric ignition device at the bottom of the gasifier) ​​discloses an electric ignition device at the bottom of the gasifier. The heat is transferred to the surrounding biomass through the air, and the air is a poor conductor of heat, it is difficult to heat to the temperature required to ignite the biomass, and the ignition time is longer

Chinese Patent No. ZL200620111588.9 (Ignition Tube Mechanism of Straw Gasifier) ​​discloses an ignition tube mechanism of straw gasifier. Usually, when biomass is fed into the gasifier, it needs to be compressed to increase the gas production. In fact, because the ignition rod in this mechanism is placed horizontally, the biomass material cannot be compacted before ignition, otherwise the ignition rod is prone to breakage or cannot be drawn out after ignition. Therefore, when using this mechanism, the filling must be carried out in multiple times, and the operation is cumbersome.

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