Intelligent straw gasification furnace

Abstract

The invention relates to an intelligent straw gasification furnace, in particular to an updraft-type household gasification furnace for converting agricultural waste into combustible gas by a limiting-oxygen combustion pyrolytic reaction. A stripping detection alarm and dehumidifying furnace cover system is arranged to increase the density of fuel in the furnace, improve the gas-generating effect,automatically give feeding alarm without stripping material and shutting down, and has no requirements on straw moisture; a porous gas-guiding device is arranged to obtain gas which occupies 80 percent of the total amount and does not contain tar and moisture; the intelligent straw gasification furnace is also provided with an external dredging purifier for convenient dismounting, dredging or replacement; and an automatic anti-blowoff intake system is arranged to ensure full uniform combustion, avoid deflected and suspended combustion in a hearth, and timely crack coke about to form, surely and continuously generate gas and achieve continuous combustion effect. Aiming to overcome the defects that the prior gasification furnace adopting a common steel plate to manufacture the hearth is easy to oxidize and strip to cause perforation in a long-term high-temperature combustion environment, the invention adopts a fireproof casting material to manufacture the hearth and prolongs the servicelife of the gasification furnace.

Description

Technical field [0001] The invention relates to a gasifier for converting agricultural waste into combustible gas through oxygen-limited combustion pyrolysis reaction. Especially updraft domestic gasifiers. Background technique [0002] At present, the updraft gasifier in the prior art is simple in structure, low in cost, and has a wide range of straw resources, and because of the global concern about the energy crisis and the air pollution caused by seasonal burning of straw and other agricultural waste, the party The country and the country attach great importance to the development and utilization of this renewable energy, encourage and advocate straw energy, and strive to achieve both energy saving and environmental protection. However, due to the high requirements on the dryness of the straw in the gasifier in the prior art, the material is often removed and the flame is turned off due to the inability to grasp the timing of feeding during use, and the tar is not handl...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the poor gas production effect due to the insufficient density of the existing gasifier when using light bulky straw fuel, and the failure to grasp the timing of its feeding, it is often seen that the material is off and the flame is turned off, and it is also affected by the rainy and humid climate. The water content in the straw is too high to produce gas normally by pyrolysis. The technical solution adopted in the present invention is: a material stripping detection prompt and a dehumidification furnace cover system are installed on the furnace body, which mainly includes a pressing material with a guide column. block, a prompter or buzzer equipped with a magnetic field control switch, and a dehumidification furnace cover; when the pressing block uses its own weight to naturally compact the light bulky fuel in the furnace, its density is also promoted. Timely blanking improves the effect of gas production; with the consumption of fuel, when the part with the magnetic block on the top of the guide column connected to the pressing block falls to the set position, the prompter outside the guide sleeve is triggered, and the automatic Make a voice prompting you to add materials or set up; the cover of the dehumidification exhaust furnace is conical or arc-shaped with a small upper part and a larger lower part, and its bottom periphery is inserted into the annular water tank set at the upper opening of the furnace body. It will generate high temperature and bake the spare fuel on its upper part one after another, so that the water in it will be gradually heated and converted into steam and continuously volatilize upwards to the furnace cover (because of the continuous heat dissipation of the furnace cover and the outside air, a large temperature difference will be formed ) suddenly encounters sudden cooling and condenses into water droplets, slides down the slope of the dehumidification furnace cover into the annular water tank, and then discharges out of the furnace from the overflow pipe. There is no requirement for the moisture content of the straw

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