Method for manufacturing biomass fuel

A technology of biomass fuel and manufacturing method, which is applied in the direction of biofuel, waste fuel, fuel, etc., can solve the problem of harmful gas generation, achieve the effects of reducing power consumption, reducing maintenance costs, and increasing product density

Inactive Publication Date: 2011-05-04
佛山市沃德森生物质燃料有限公司
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  • Claims
  • Application Information

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Problems solved by technology

The above fuels can replace coal to a certain extent, but chemical additives are added to the raw materials as a binding medium, which is not a pure biomass fuel. When burning, the binding medium will produce harmful gases

Method used

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  • Method for manufacturing biomass fuel

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Embodiment Construction

[0021] The specific implementation of the biomass fuel production method of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0022] Such as figure 1 Shown, biomass fuel manufacturing method of the present invention, comprises process step as follows:

[0023] a. Crush and clean the waste wood, remove impurities, and obtain raw materials with a particle size between φ0.02mm-φ20mm; the purchased waste wood materials contain certain metals, plastics and other sundries, which can be removed after crushing and cleaning , and obtain raw materials of suitable size. When producing high-density biomass fuels with a density greater than 1g / cm3, the particle size of the raw materials should be controlled between φ0.02mm-φ6mm. When producing high-density biomass fuels with a density less than 1g / cm3 , the particle size of the raw material is between φ6mm-φ20mm;

[0024] b. Dry the wood chips so that their moisture content i...

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Abstract

The invention relates to a method for manufacturing solid fuel, particularly to a method for manufacturing biomass fuel replacing coal for civilian use and coal for industrial use. The method comprises the following process steps: a. crushing and cleaning the waste wood, removing the impurities to obtain a raw material of which the particle size is between Phi 0.02mm to Phi 20mm; b. drying the wood chips to have the water content of 5-15%; c. carrying out superheated steam treatment on the wood chips at the temperature of 300-600 DEG C to soften the surface of the wood chip, melt lignin and improve the raw-material activity and the binding capacity; d. resizing the material by extrusion molding equipment to be finished products of the biomass fuel; e. cooling; f. screening, and removing the loosened crushed aggregates; and g. drying by an air flow dryer, packaging and storing, wherein, the water content is 5-10%. In the biomass fuel produced by the manufacturing method, the natural binding components contained in the raw material are utilized to tightly bond with the raw material, and extra chemical additive is not added as a bonding medium; and the biomass fuel is environmentally-friendly biomass fuel.

Description

technical field [0001] The invention relates to a method for producing solid fuel, in particular to a method for producing biomass fuel that can replace civil and industrial coal. Background technique [0002] At present, there are many fuel manufacturing technologies that can replace civil and industrial coal, and there are many literature reports on this technology. For example, the Chinese patent document CN1353171A discloses an environmentally friendly granular fuel, whose raw materials include various plant straw scraps, water, calcium bicarbonate, combustion enhancers, binders, and the like. Another example is a solid fuel made of fly ash and plastic and its manufacturing method disclosed in Chinese patent document CN1312351A. fixed fuel. The above-mentioned fuels can replace coal to a certain extent, but chemical additives are added to the raw materials as a binding medium, which is not a pure biomass fuel. When burned, the binding medium will produce harmful gases....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/44
CPCY02E50/10Y02E50/30
Inventor 严荣常明范诗腾周群何俏丹冯莹莹林耀强王玲玲
Owner 佛山市沃德森生物质燃料有限公司
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