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Cornstalk pellet fuel and preparation method thereof

A corn stalk and biomass particle technology, which is applied to fuels, solid fuels, biofuels, etc., can solve the problems of soil and water pollution, decay, biomass energy waste, etc., and achieve low tar content, low ash content, and large gas production. Effect

Inactive Publication Date: 2017-03-22
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nut shells are discarded and rotted randomly, which not only wastes biomass energy, but also pollutes soil and water sources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0011] The steps of the preparation method of corn stalk biomass pellet fuel are as follows:

[0012] 1) first crush the outer soft shell of the corn stalk into mud, and grind the inner hard shell and shavings of the corn stalk into powder;

[0013] 2) Then, 5% to 10% of corn stalk inner layer hard shell powder, 60% to 65% of corn stalk outer layer soft shell mud, 15% to 20% of shaving powder, 10% to 15% of The sawdust is fully mixed and extruded into columnar particles.

[0014] The water content of the corn stalk inner layer hard shell powder is 10%-12% by mass and the particle size is <5mm; the water content of the corn stalk outer layer soft shell mud is 15%-25% by mass. The corn stalks are sweet corn, waxy corn, glazed corn or jewel corn.

Embodiment 1

[0016] First, crush the outer soft shell of sweet corn stalks into mud, and grind the inner hard shell and shavings of sweet corn stalks into powder; then mix 5% sweet corn stalk inner hard shell powder and 65% sweet corn stalk outer soft shell Mud, 20% shaving powder, and 10% sawdust are fully mixed and extruded into columnar particles. The water content of the hard shell powder in the inner layer of the sweet corn stalk is 10%, and the water content of the soft shell mud in the outer layer of the sweet corn stalk is 15%.

Embodiment 2

[0018] First, crush the outer soft shell of waxy corn stalk into mud, and grind the inner hard shell and shavings of waxy corn stalk into powder; The outer layer of soft shell mud, 20% shaving powder, and 10% sawdust are fully mixed and extruded into columnar particles. The water content of the hard shell powder in the inner layer of the waxy corn stalk is 10%, and the water content of the soft shell mud in the outer layer of the waxy corn stalk is 15%.

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PUM

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Abstract

The invention discloses a cornstalk pellet fuel and a preparation method thereof. The preparation method comprises the following steps: 1) crushing the external soft shell of cornstalk into slurry and smashing the internal hard layer of the cornstalk and wood shavings into powder; and 2) fully mixing 5 to 10 wt% of the powder of the internal hard layer of the cornstalk, 60 to 65 wt% of the slurry of the external soft shell of the cornstalk, 15 to 20 wt% of wood shaving powder and 10 to 15 wt% of sawdust and carrying out extrusion so as to form cylindrical particles, wherein the powder of the internal hard layer of the cornstalk has water content of 10 to 12% by mass and a particle size of less than 5 mm, the slurry of the external soft shell of the cornstalk has water content of 15 to 25% by mass, and the cornstalk is the stalk of sweet corn, waxy corn, glazed corn or glass gem corn. According to the invention, the slurry obtained after crushing of the external soft shell of the cornstalk is mixed with the internal hard layer of the cornstalk, wood shavings and sawdust, so the pellet fuel is easy to shape and has a compact granule structure and high calorific value.

Description

technical field [0001] The invention relates to the high-efficiency utilization of corn stalk-based biomass energy, in particular to a corn stalk-based granular fuel and a preparation method thereof. Background technique [0002] With the development of the economy, human beings' demand for energy is increasing, while fossil energy resources such as coal, oil, and natural gas are decreasing. At the same time, with the utilization of a large amount of fossil energy, pollution is increasing. The development of low-pollution, biomass renewable energy has become a global focus. A large number of corn stalk plants are planted in my country every year. Corn stalk biomass fuel is extremely rich, but it has not been effectively utilized for a long time. Nut shells are discarded and rotted at random, which not only wastes biomass energy, but also pollutes soil and water sources. Contents of the invention [0003] The purpose of the present invention is to overcome the deficienci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/44
CPCY02E50/10Y02E50/30C10L5/445
Inventor 周奉椿卢培坤罗茂松
Owner GUANGXI UNIV
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