Biomass pretreatment and multifunctional gasification integration machine

Abstract

The invention relates to a biomass raw material pretreatment and dry distillation pyrolysis gasification multifunctional integration apparatus. The apparatus comprises an auxiliary machine cone screw propelling driving shaft, a cone material cylinder, a hopper, an auxiliary machine electric heating coil, an auxiliary machine heat insulation layer and a plurality of gas outlets. A raw material enters an auxiliary machine from the hopper and is pretreated, the pretreated raw material directly enter a gasification main machine in a sealed manner, the gasification main machine comprises a main machine cone propelling driving shaft and a main machine material cylinder, the periphery of the material cylinder is provided with a main machine electric heating coil and a main machine heat insulation layer, a combustion gas outlet tube is arranged above a carbon powder outlet tube, the raw material outlet end of the auxiliary machine and the raw material inlet of the main machine are connected in a sealed manner to form an integration machine, and the integration machine is fixedly arranged on frames respectively, so the combustion value of combustible gas generated in anoxic dry distillation pyrolysis gasification of the raw material pretreated by the auxiliary machine in the main machine is greatly improved, thereby cooking needs are met, and environmental protection and new rural construction are facilitated.

Description

technical field [0001] The invention relates to a device for gasifying biomass such as agricultural stalks, in particular to a multifunctional gasification integrated machine for preprocessing biomass. Background technique [0002] my country is a large agricultural country, and produces a large amount of straw, bamboo and wood waste, and grain husks and other wastes every year. The effective utilization rate of them is very low, and most of them are burned. Gasifiers are used to process biomass raw materials such as straw. This dry distillation pyrolysis and chemical oxidation reaction will produce flammable gas, which can achieve the combustion effect under the support of nitrogen and oxygen, but there will be slagging, tar, and odor. It is difficult to eliminate and filter out, and the combustion state is difficult to control, especially there will be excessive air and water vapor in the gas, which will seriously affect the improvement and compliance of the combustion calor...

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Problems solved by technology

[0002] my country is a large agricultural country, and produces a large amount of straw, bamboo and wood waste, and grain husks and other wastes every year. The effective utilization rate of them is very low, and most of them are burned. Gasifiers are used to process biomass raw materials such as straw. This dry distillation pyrolysis and chemical oxidation reaction will produce flammable gas, which can achieve the combustion effect under the support of nitrogen and oxygen, but there will be slagging, tar, and odor. It is difficult to eliminate and filter out, and the combustion state is difficult to control, especially there will be excessive air and water vapor in the gas, which will seriously affect the improvement and compliance of the combustion calorific value of the gas (the combustion value can only reach 4800-5500KJ / m 3 , farmers generally respond that steaming rice is OK, but cooking is not ideal), which is a big bottleneck for popularization

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