The principle of straw gas stove 20, the principle of straw gas stove

Technical principle and characteristics of straw gas furnace.

1) Technical principles.

Straw (firewood and grass) biomass gasification technology is based on the straw direct combustion method, through advanced biomass gas manufacturing technology and scientific rapid pyrolysis method and the energy conversion process of various plant straws (firewood and grass) in the direct combustion state of complex physicochemical reactions. The secondary cycle combustion (efficient utilization) of straw (firewood and grass) flue gas is adopted, that is, the plant straw rich in hydrocarbon elements is turned into carbon monoxide, hydrogen, methane and other combustible gases by the action of the straw biomass gas generator, so that all the energy in the straw is converted into combustible gas to realize cooking food and meet various heating needs.

2) Performance characteristics:

1.The biomass gas straw gasifier can directly convert all kinds of crop straw and agricultural and forestry wastes into clean biomass.

Gas, which is burned by a special converter. No chemical additives or ingredients are added.

2.The innovative function and super pressure stabilizing purification system make the biomass gas burn cleanly, without the worry of tar and smoke.

3.The scientific ratio of wind and air is used to form a circulating air duct, which does not need a fan, that is, through the three air distribution process and air duct air distribution control, and the fire power can be adjusted.

4.The combustion starts quickly (just one newspaper is needed) and ignites instantly. After sealing the fire, it is still ignited when it is started again.

5.The original biomass gas combustion system has a fast start-up speed and can convert tar into high-energy combustion gas for combustion. The heat efficiency utilization rate is more than 400% higher than that of the straw direct-fired stove, and the environmental protection indicators are in line with the national standards.

6.Low energy consumption, daily straw only needs 3 4 kg (cost is almost zero), and one charge can burn continuously for 3 4 hours.

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The carbon content in plant biomass (including wood, firewood, wild grass, pine needle leaves, crop straw, cattle and sheep manure, and edible fungus residue) is about 40%, followed by hydrogen, nitrogen, oxygen, magnesium, silicon, phosphorus, potassium, calcium and other elements. The organic components of plant straw are mainly cellulose and hemicellulose, and the mass fraction is 50%. These biomass raw materials are heated under anoxic conditions to make them undergo complex thermochemical reactions.

The essence of this process is that the atoms of carbon, hydrogen, oxygen and other elements in the plant matter become carbon monoxide, methane, hydrogen, etc., and flammable gas molecules under reaction conditions according to the bonding principle of chemical bonds. In this way, most of the energy in the plant biomass is transferred to these gases. Basic responses include:

c+o2=co2 2c+o2=2co

2H2O+C=CO2+2H2 2CO+O2=2CO2H2O+CO=CO2+H2 CO2+C=2Coch4+CO2=2CO+2H2 C+2H2=CH4CO+3H2=CH4+H2O 2H2+O2=2H2OThe realization of the gasification process of the above-mentioned biomass is completed by a gasification reaction device (i.e., a gas furnace). Hope to adopt.

Straw-burning domestic hot water boilers? It doesn't make sense. Power stations and industrial boilers are worth doing, and the straw can be crushed and burned, or it can be granulated.

However, who is interested in investing in a wood coal project, wood coal can be bought for more than 1,200 yuan, and the granulation cost is about 150 yuan tons.

A vertical boiler for home use will do! Many households in rural areas in the north use this type of boiler.

There are vertical boilers.

Straw is a general term for the stem, leaf (spike) part of a mature crop. Usually refers to the residue of wheat, rice, maize, potatoes, rape, cotton, sugarcane and other crops (usually coarse grains) after harvesting the seeds. More than half of the products of crop photosynthesis exist in straw, which is rich in nitrogen, phosphorus, potassium, calcium, magnesium and organic matter, etc., and is a renewable biological resource with multiple uses, and straw is also a kind of roughage.

It is characterized by a high crude fiber content (30%-40%) and contains lignin, etc. Although lignin cellulose cannot be used by pigs and chickens, it can be absorbed and utilized by ruminant cattle, sheep and other livestock.

Straw boiler has existed for a long time, the conventional structure is SZL or DZL structure water tube boiler, if it is only a single family heating and domestic hot water use, it is meaningless, the investment cost is too large, if the area adopts central heating, it can be considered, but the calorific value of straw is too low, fuel consumption is large, the boiler room needs special stoker personnel, special boiler room, and straw storage warehouse, fire and explosion protection requirements, and there are restrictions on air emissions (the restrictions in rural areas are slightly looser), and the need for local ** Approval, otherwise it will be difficult to achieve.

The vertical boiler grate can be made thinner, and you can explain it to the manufacturer when you buy the boiler.

This investment must do a good job of demonstration plan, to consider the local straw reserves, straw stability, to consider the completion of the straw (estimated after the completion of the surrounding straw to be completed), transportation (too far enough oil money), storage site and other comprehensive factors, and strive to obtain local support.