Preparation method of high-density biomass briquetting fuel

A technology for briquetting fuel and biomass raw materials, applied in the directions of biofuel, waste fuel, fuel, etc., can solve the problems of unfavorable application promotion, huge equipment development cost, energy consumption cost maintenance cost, increase in biomass briquetting fuel cost, etc. It is convenient for large-scale promotion and application, saving equipment investment costs, and facilitating large-scale production.

Active Publication Date: 2015-03-04
湖南志娜能源管理有限公司
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Problems solved by technology

However, in the current manufacturing process, it is generally improved by increasing the molding pressure, increasing the molding temperature, and improving the molding tools. However, these methods all belong to the improvement of the density of biomass briquettes

Method used

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  • Preparation method of high-density biomass briquetting fuel

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preparation example Construction

[0026] A method for preparing a high-density biomass briquette, wherein the high-density biomass briquette has a layered structure, comprising the steps of:

[0027] The first step, raw material pretreatment, respectively select agricultural waste as the inner layer raw material, and lignin and / or oil crop waste as the outer layer raw material. The agricultural waste includes straw, corn cob, bagasse, algae and water hyacinth The mixture of one or more of them, the lignin includes one or more of wood blocks, sawdust and bark, and the oil crop waste includes cottonseed, hempseed and tung tree One or more than one mixture, the inner layer raw material and the outer layer raw material are crushed, dried and sieved respectively, the mesh number of the outer layer raw material is 100-200 mesh, and the mesh number of the inner layer raw material is 10-60 mesh To obtain the inner layer raw material powder and the outer layer raw material powder to be processed;

[0028] The second s...

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Abstract

The invention relates to the technical field of biomass briquetting fuel and provides a preparation method of a high-density biomass briquetting fuel. The high-density biomass briquetting fuel is of a layered structure. The preparation method comprises the following steps: pretreating raw materials, adjusting the content of moisture in an inner-layer raw material, adjusting the content of moisture in an outer-layer raw material, laminating layer by layer and carrying out press molding. According to the high-density biomass briquetting fuel, the layered structure comprising an inner-layer raw material layer and an outer-layer raw material layer, by forming a gradient of fineness of raw materials between the inner-layer raw material layer and the outer-layer raw material layer, the pressing difficulty is decreased; by forming a gradient of a moisture content between the inner-layer raw material layer and the outer-layer raw material layer, the pressing difficulty is decreased and the density of the biomass briquetting fuel is ensured. The preparation method of the biomass briquetting fuel has the characteristics of high density and low cost, is convenient to process and can be put into scale production conveniently.

Description

technical field [0001] The invention relates to the field of biomass briquettes, in particular to a method for preparing high-density biomass briquettes. Background technique [0002] with the development of economy. Energy and environmental issues have become the focus of global attention. The energy crisis caused by the depletion of traditional fossil energy sources such as coal, oil, and natural gas and the pollution caused by their combustion have become increasingly prominent. It is imminent to develop clean and renewable energy sources. Biomass is a diverse energy resource with a wide range of sources and simple application. It has a good application prospect as an effective alternative energy source. In recent years, the research and application of using forest processing waste and straw to make biomass pellet fuel has gradually increased. At present, biomass energy is mainly directly formed into strips, granules or blocks by direct extrusion. , The molding thicknes...

Claims

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Application Information

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IPC IPC(8): C10L5/44
CPCY02E50/10Y02E50/30
Inventor 王志雄
Owner 湖南志娜能源管理有限公司
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