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Novel biomass densification-forming pellet fuel

A pellet fuel and biomass technology, which is applied in the field of new biomass compact pellet fuel, can solve the problems of low fuel output and low molding rate, and achieve the effects of increasing output, increasing molding rate, and avoiding difficult collection

Inactive Publication Date: 2011-07-06
哈尔滨金石生物质能源发展有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problem of low output and low molding rate of biomass pellet fuel processed from a single biomass raw material, the present invention discloses a new type of biomass dense molding fuel made of three raw materials: straw, rice husk and corncob.

Method used

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Embodiment Construction

[0005] First, use a 6 mm screen hammer mill to crush the straw into 6 mm to ensure the length of the straw fiber; secondly, replace the grinder screen, use a 4 mm screen to crush the corn cob into 4 mm, and the rice husk does not need to be crushed. According to the weight ratio of 50% of straw, 30% of rice husk and 20% of corn cob, the three raw materials are mixed, and dried by drying equipment to reach a moisture content of 13%-15%. The long fibers in the straw have strong toughness, and the corncobs are crushed into small particles. Since the germ in the corncobs has a small amount of sugar, it degrades quickly under high temperature and high pressure and has a certain viscosity. The rice husk enters the pellet forming machine, and is extruded and compacted under the action of high-temperature and high-pressure rollers and ring dies to make biomass dense pellet fuel. The formed biomass dense pellet fuel is cylindrical pellets with a diameter of 8 mm , the length is 10mm-50...

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Abstract

The invention discloses a novel biomass densification-forming pellet fuel. Waste and renewable crop straws, rice husks and corncobs are used as raw materials, and are processed through crushing, mixing, drying, compressing, cooling, screening and packaging into the novel biomass densification-forming pellet fuel. The following components are proportioned according to weight ratios for the fuel preparation: 50 percent of straws, 30 percent of rice husks and 20 percent of corncobs. The preparation method is that the straw length is reduced to 6mm through crushing, the corncob length is reduced to 4mm through crushing, and the rice husks are not crushed; the straws, the corncobs and the rice husks are evenly mixed according to the weight ratios and dried by drying equipment; and after the moisture content reaches 13 percent to 15 percent, the fuel is formed in a compressed manner at a high temperature through a pellet forming machine. The formed biomass densification-forming pellet fuel is a cylindrical pellet of which the diameter is 8mm and the length is 10mm to 50mm. After being formed, the fuel is cooled through a cooler, screened and packaged, and then a finished pellet product can be acquired.

Description

technical field [0001] The invention discloses a new type of biomass dense molding granular fuel. The new type of granular fuel uses waste and renewable crop stalks, rice husks, and corncobs as raw materials, and is crushed, mixed, dried, compressed, cooled, and sieved. Sorting and packaging are processed into biomass densified briquettes. Background technique [0002] Pellet fuel made from waste and renewable biomass resources does not add any chemical agents, binders and combustion aids. It is not only energy-saving and environmentally friendly, but also has high calorific value and little environmental pollution after burning. This granular fuel is suitable for heating and cooking in rural areas, and boilers burn biomass power plants for power generation, and has good economic, social and environmental benefits. At present, the traditional biomass dense pellet fuel processing industry generally has the problem of low single raw material processing output and low molding ...

Claims

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Application Information

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IPC IPC(8): C10L5/44
CPCY02E50/30Y02E50/10
Inventor 石磊
Owner 哈尔滨金石生物质能源发展有限公司
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