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Method for preparing biomass pellet fuel by mulberry branch fermentation wastes

A technology for fermenting waste and biomass particles, which is applied in the direction of biofuel, waste fuel, fuel, etc., can solve the problems of single raw materials, low compression molding rate, insufficient combustion, etc., to prolong life, improve molding rate, Effect of reducing ring die wear

Inactive Publication Date: 2015-08-19
GUANGXI ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a formula and process for preparing biomass granular fuel by using mulberry branch fermentation waste. By floating the mulberry branch fermentation waste with low calorific value and the woody plant residue with high calorific value, the biomass raw material can be made Molding under the condition of lower ring die aperture length ratio reduces the wear of ring die, and can effectively improve the molding rate, product density, durability and low calorific value of pellet fuel, and solve the raw material selection of existing biomass molding fuel Uniformity, low compression molding rate, poor combustion value, insufficient combustion, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The mulberry branch fermentation waste and woody plant residue raw materials are respectively pulverized according to the following parameters.

[0023] Mulberry branch fermentation waste: the length of the particles is less than 2 mm; eucalyptus bark: the length of the particles is less than 5 mm; pine sawdust: the length of the particles is less than 3 mm. The components in the fermentation waste of mulberry branch in this embodiment are: 90 parts of mulberry branch, 7 parts of cassava alcohol waste residue, 1 part of calcium oxide, and 2 parts of calcium sulfate.

[0024] Weighing by weight under the assistance of measuring hopper, 12 weight parts of mulberry branch fermentation waste, 81 weight parts of eucalyptus bark particles and 7 weight parts of pine wood chips are stirred and mixed, and then sent into the airflow drying chamber to be heated and dried to The moisture content is about 16.0%, and finally sent to the roller-type ring mold briquetting machine by th...

Embodiment 2

[0026] The mulberry branch fermentation waste and woody plant residue raw materials are respectively pulverized according to the following parameters.

[0027] Mulberry branch fermentation waste: particle length 1-2 mm; mulberry branch: particle length less than 4 mm; pine sawdust: particle length less than 3 mm. The components in the fermentation waste of mulberry branch in this embodiment are: 80 parts of mulberry branch, 15 parts of cassava alcohol waste residue, 4.5 parts of calcium oxide, and 0.5 part of calcium sulfate.

[0028] Weighing by parts by weight under the assistance of a measuring hopper, the mulberry branch fermentation waste of 18 parts by weight, the eucalyptus bark particles of 72 parts by weight and the pine chips of 10 parts by weight are stirred and mixed and sent into the airflow drying chamber to be heated and dried to The water content is about 17.5%, and finally sent to the roller-type ring mold briquetting machine through the conveyor, and continuo...

Embodiment 3

[0030] The mulberry branch fermentation waste and woody plant residue raw materials are respectively pulverized according to the following parameters. Mulberry branch fermentation waste: particle length 2 mm; eucalyptus bark: particle length 6 mm; mulberry branch: particle length 4 mm; pine sawdust: particle length 4 mm. The components in the fermentation waste of mulberry branch in this embodiment are: 85 parts of mulberry branch, 10 parts of cassava alcohol waste residue, 2 parts of calcium oxide, and 3 parts of calcium sulfate.

[0031] Weighing by weight parts under the assistance of the measuring hopper, the mulberry branch of 18 parts by weight, the eucalyptus bark particle of 32 parts by weight, the mulberry branch of 35 parts by weight and the pine sawdust of 15 parts by weight are evenly mixed and then sent It is heated and dried in the airflow drying chamber until the moisture content is about 16.5%, and finally sent to the roller-type ring model briquetting machine ...

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Abstract

The invention discloses a method for preparing biomass pellet fuel by mulberry branch fermentation wastes. The method comprises the following steps of crushing the mulberry branch fermentation wastes into 1 to 3mm, and crushing the woody plant leftovers into 3 to 6mm; uniformly stirring and mixing 5 to 40 parts of mulberry branch fermentation waste powder and 60 to 95 parts of woody plant leftover powder, heating and drying to the 14 to 25% of water content, and sending the dried material into a press roll type annular die to form. The method has the advantages that by mixing the mulberry branch fermentation wastes with low caloric value and the woody plant leftovers with high caloric value, the biomass raw material can be formed under the condition of lower aperture and length ratio of the annular die, the abrasion of the annular die is reduced, and the forming rate, product density, durability and lower caloric value of the pellet fuel can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of fuel preparation, in particular to a method for preparing biomass particle fuel from mulberry branch fermentation waste. Background technique [0002] Non-renewable fossil resources such as coal, oil and natural gas constitute the cornerstone of the energy, chemical and material industries in the world today, and have made great contributions to the prosperity of human civilized society. With the development of society, human beings demand more and more energy, but the reserves of fossil resources on the earth are gradually decreasing. Under the current situation that oil resources are facing depletion and the awareness of environmental protection is becoming stronger, the impact on the earth The most abundant and renewable biomass resource in the world is imminent. my country is a big agricultural country. According to relevant statistics in 2012, the total annual output of crop straw in my country is 6...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/44B01J2/22
CPCY02E50/10Y02E50/30
Inventor 黎演明黄志民韦光贤李俊晓
Owner GUANGXI ACAD OF SCI
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