Gasification furnace

Abstract

Provided is a gasification furnace. An air sleeve is arranged in the furnace wall of a furnace body, and an air inlet chamber, a water filtering chamber and a drainage chamber are sequentially formedin the air sleeve from top to bottom. A clapboard is arranged between every two adjacent chambers and fixedly connected with the furnace wall; the air inlet chamber is provided with a plurality of airinlet holes communicated with a fuel chamber and communicated with the drainage chamber through a plurality of air guide pipes, and a plurality of air guide holes are formed in the clapboard betweenthe drainage chamber and the water filtering chamber; each air guide hole is covered with a conical cap, an exhaust gap is formed between each conical cap and the corresponding clapboard, and each conical cap is fixedly connected with the corresponding clapboard or the furnace wall; the upper part of the water filtering chamber is provided with an exhaust pipe; the lower part of the drainage chamber is provided with a drainage valve pipe. According to the gasification furnace, the requirement for the water content of biomass fuel is low, produced combustible gas can be used by gas equipment normally, and the production cost of combustible gas can be reduced.

Description

technical field [0001] The invention provides a gasifier. Background technique [0002] The fuel for the gasifier can use biomass fuels such as agricultural waste (such as straw, straw), forest waste (sawdust, wood powder), edible fungus residue, cattle and sheep manure, etc. The above-mentioned combustible substances are renewable resources, so the gasification The combustible gas produced by the gasification furnace belongs to green energy. It is safe to use, clean and hygienic. It is the necessary combustible gas production equipment for many rural families. There is a gas output pipe, the top of the furnace body is covered with a furnace cover, and the lower part of the furnace body is equipped with an air supply pipe and a fuel pipe. After opening the furnace cover, fill the fuel chamber with biomass fuel, then cover the furnace cover, and use the supply The wind device sends air into the fuel chamber through the air supply pipe, and then ignites the biomass fuel in th...

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Problems solved by technology

[0002] The fuel for the gasifier can use biomass fuels such as agricultural waste (such as straw, straw), forest waste (sawdust, wood powder), edible fungus residue, cattle and sheep manure, etc. The above-mentioned combustible substances are renewable resources, so the gasification The combustible gas produced by the gasification furnace belongs to green energy. It is safe to use, clean and hygienic. It is the necessary combustible gas production equipment for many rural families. There is a gas output pipe, the top of the furnace body is covered with a furnace cover, and the lower part of the furnace body is equipped with an air supply pipe and a fuel pipe. After opening the furnace cover, fill the fuel chamber with biomass fuel, then cover the furnace cover, and use the supply The wind device sends air into the fuel chamber through the air supply pipe, and then ignites the biomass fuel in the fuel chamber from the fuel pipe, closes the mouth cover of the fuel pipe, and under the condition of airtight hypoxia, the biomass fuel is slumped. The smoldering, pyrolysis reaction produces combustible gas, which is connected to the gas equipment through the gas output pipe. When the gasifier is running, it can provide combustible gas for the gas equipment for a long time; the disadvantages of the existing gasifier The dryness requirements of biomass fuels are more stringent. Biomass fuels must be completely dry. Generally, the moisture content of biomass fuels is required to be below 20% in order to achieve better use results; biomass fuels with a moisture content of more than 20% Otherwise, it cannot be used normally, and the harmful phenomenon of gas outage and smoke often occurs; in order to obtain dry biomass fuel, it is necessary to pretreat the biomass fuel, usually by natural drying or heating and drying; among them, the biomass When the fuel is dried naturally, it not only requires a large space, but is also easily affected by the weather; heating and drying biomass fuel requires the use of a dryer, which consumes a certain amount of electric energy, and the processing cost is relatively high. Therefore, existing users who use gasifiers mostly purchase processed dry powder materials for use; some users purchase pulverizers to crush combustible biomass, which can speed up the natural drying process, and then collect and dry The use of powder, the processing process is more cumbersome

Moreover, the existing gasifier still has the following defects: each time the biomass fuel is filled, it must be filled in layers, and each time a layer is added, the biomass fuel must be manually compacted to avoid gaps between the fuels , the gasification is not good, and a large amount of smoke is produced, which affects the gas production effect, but the process of pressing the material is very laborious. Except for the powder, it is difficult for manpower to compact the biomass fuel

Moreover, during the combustion process, it will often form a burning state, and the upper material will not come down, and the gas cannot be produced normally. If the furnace cover is opened, the smoke in the gasification will rise to the whole room, which is unbearable.

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