Biomass particle gasification process for kiln

A technology of biomass particles and process methods, which is applied in the field of gasification of biomass materials to produce fuel gas, can solve the problems of unsatisfactory purification effect, low energy conversion rate, high tar content, etc., to improve the replacement rate, improve combustion conditions, Effect of reducing tar content

Active Publication Date: 2012-10-03
柳州东侯生物能源科技有限公司
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Problems solved by technology

[0003] The purpose of the present invention is to provide a biomass particle gasification process for kilns, which can solve the problems of high tar content, low energy conversion rate and low calorific value of gas in the existing biomass gasification technology. Low, the purification effect is not ideal, and the problem of uneven air outlet

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  • Biomass particle gasification process for kiln

Examples

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Effect test

Embodiment 1

[0019] The biomass gas gas furnace has a furnace body with a hearth 12 surrounded by a furnace shell 11, an inverted conical cylinder 9 and a grate 7. The furnace shell 11 of the furnace body is made of heat insulating material, and the furnace shell 11 is fixed Installed on the base 1, the furnace shell 11 is provided with a partition 6 with a grate 7 in the middle, the ash bin 4 is located below the partition 6, and the bottom of the ash bin 4 is provided with a slag outlet, and the slag outlet is placed in the water In the sealed pool pool 52, the ash bin 4 is built with a screw rod 3, and the screw rod 3 is connected with the power machine outside the furnace body. The power machine in the embodiment adopts a motor driven by an electric actuator 2; The ignition port 51 in the water-sealed range of the water-sealed pool 52 that communicates with the outside; an inverted cone-shaped cylinder 9 is arranged above the partition 6 to connect between the partition 6 and the furnac...

Embodiment 2

[0028] The straw, wood bran and wood shavings are crushed and mixed, dried until the moisture content is less than 14%, and then pressed and granulated by a biomass pellet machine to produce biomass with a diameter of 10 mm, a length of 25 mm, and a density of 1.2 tons / m3 particles. Biomass particles are put into the hopper 17 and fed into the furnace body at a speed of 500 kg / hour through the electric feed reduction valve 16. The height of the hearth 12 of the furnace body in the present embodiment is 8 meters, and the inner diameter of the furnace 12 top is 2 meters, and the height of the cylinder 9 is 1 meter, and the inner diameter of the bottom of the cylinder is 1 meter. A furnace air inlet 8 is provided at a height H of 15 centimeters above, and the furnace air inlet 8 is 16 round holes with a diameter of 2 centimeters evenly arranged on the cylinder 9 . After being ignited by the ignition port 51, the slag outlet of the ash bin 4 and the ignition port 51 are water-sea...

Embodiment 3

[0030] The straw, wood bran and wood shavings are crushed and mixed, dried until the water content is less than 14%, and then pressed and granulated by a biomass pellet machine to produce biomass with a diameter of 12 mm, a length of 30 mm, and a density of 1.3 tons / m3 particles. Biomass particles are put into the hopper 17 and fed into the furnace body at a speed of 1000 kg / hour through the electric feed reduction valve 16. The height of the hearth 12 of the furnace body in the present embodiment is 12 meters, and the internal diameter of the furnace 12 top is 3 meters, and the height of the cylinder 9 is 2 meters, and the internal diameter of the bottom of the cylinder is 2 meters. A furnace air inlet 8 is provided at a height H of 20 centimeters above, and the furnace air inlet 8 is 20 circular holes with a diameter of 5 centimeters evenly arranged on the cylinder body 9 . After being ignited by the ignition port 51, the slag outlet of the ash bin 4 and the ignition port 5...

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Abstract

The invention discloses a biomass particle gasification process for a kiln, which comprises the following steps of: smashing and pressing sawdust and wood shavings into biomass particles; adding the biomass particles into a biomass gas gasification furnace according to certain weight to carry out a thermalization cracking reaction to generate mixed gas by controlling the burning temperature in the furnace to be 900-1,200 DEG C; spraying the outlet mixed gas, and introducing the sprayed gas into a purifier for heat exchange; cooling, then introducing the gas into a cyclone chamber, and separating out ash content in the gas under the action of cyclone separation; and introducing gas after the cyclone separation into a separator, and under the condensation action of the separator, further separating out clean gas and liquid residues by controlling the clean gas output temperature to be 20-25 DEG C. Compared with the prior art, the biomass particle gasification process for the kiln has the advantages of high energy conversion ratio, high gas heat value, good purification effect, low tar content, large gas output and uniform gas outlet.

Description

technical field [0001] The invention relates to the technical field of gasification of biomass materials to produce gas, in particular to a process for producing gas by carbonizing or coking the gasification of biomass solid materials, and purifying the combustible gas generated by gasification . Background technique [0002] Biomass refers to various organisms produced through photosynthesis using the atmosphere, water, and land. The abundance of biomass resources and the coercive demand for new energy around the world make the development of biomass resources a new energy construction in recent years. Hot topics. In order to make full use of renewable biomass resources and reduce environmental pollution, the use of biomass resources is mainly to gasify biomass raw materials to generate combustible gas to replace traditional natural gas to obtain clean energy. Biomass gasification technology It is of great significance to establish a sustainable energy system, promote na...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/20C10J3/84
Inventor 韦科华韦泉
Owner 柳州东侯生物能源科技有限公司
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