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Preparation method and application of biomass briquette binder

A technology of binder and biomass, which is applied in the field of preparation of biomass briquette binder to achieve the effect of reducing pollution, good bonding and good effect

Inactive Publication Date: 2018-11-30
常州五荣化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention: Aiming at the shortcomings of the existing single briquette binder, a preparation method and application of a biomass briquette binder are provided

Method used

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  • Preparation method and application of biomass briquette binder

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0024] Take 200g of molasses and add it into 300mL of deionized water, stir at 300r / min for 20min, then add 30g of quicklime, and continue stirring for 30min to obtain a mixed solution, dry the corn stalks naturally, put them into a pulverizer and grind them, pass through a 200-mesh sieve, and take 300g to pass through a sieve. The sieved corn stalk powder was added to the mixture, and the pH was adjusted to 11 with 5% sodium hydroxide, then stirred and reacted at 200r / min at 60°C for 2 hours, and 90g of 5% was added after cooling to room temperature The polyvinyl alcohol solution was stirred at 1800r / min for 20min to obtain a biomass briquette binder. The coal powder was put into a pulverizer and pulverized, then transferred to a sieve machine and screened through a standard sieve to select 0-0.5mm, 0.5 ~1mm, 1~2mm, 2~3mm particle size coal powder, and according to 0~0.5mm particle size 60%, 0.5~1mm particle size 10%, 1~2mm particle size 18%, 2~3mm particle size 12% Perform b...

example 2

[0026] Add 250g of molasses into 350mL of deionized water, stir at 350r / min for 25min, then add 35g of quicklime, and continue stirring for 35min to obtain a mixed solution, dry the corn stalks naturally, put them into a pulverizer and grind them, pass through a 200-mesh sieve, and take 400g to pass through a sieve. The sieved corn stalk powder was added to the mixture, and the pH was adjusted to 11 with 5% sodium hydroxide, then stirred and reacted at 250r / min at 70°C for 2 hours, and 95g was added after cooling to room temperature with a mass fraction of 5% The polyvinyl alcohol solution was stirred at 2000r / min for 25min to obtain the biomass briquette binder, the pulverized coal was put into a pulverizer and pulverized, then transferred to a sieve machine and passed through a standard sieve to select 0-0.5mm, 0.5 ~1mm, 1~2mm, 2~3mm particle size coal powder, and according to 0~0.5mm particle size 55%, 0.5~1mm particle size 11%, 1~2mm particle size 19%, 2~3mm particle size 1...

example 3

[0028] Take 300g of molasses and add it to 400mL of deionized water, stir at 400r / min for 30min, then add 40g of quicklime, and continue stirring for 40min to obtain a mixed solution, dry the corn stalks naturally, put them into a pulverizer and grind them, pass through a 200-mesh sieve, and take 500g to pass through a sieve. The sieved corn stalk powder was added to the mixture, and the pH was adjusted to 12 with 5% sodium hydroxide, then stirred and reacted at 300r / min at 80°C for 3 hours, and 100g was added after cooling to room temperature with a mass fraction of 5% The polyvinyl alcohol solution was stirred at 2400r / min for 30min to obtain the biomass briquette binder, the pulverized coal was put into a pulverizer and pulverized, then transferred to a sieve machine and passed through a standard sieve to select 0-0.5mm, 0.5 ~1mm, 1~2mm, 2~3mm particle size coal powder, and according to 0~0.5mm particle size 50%, 0.5~1mm particle size 15%, 1~2mm particle size 20%, 2~3mm part...

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Abstract

The invention relates to a preparation method and application of a biomass briquette binder, and belongs to the technical field of fuels. According to the method, corn straw is treated through alkali,lignin, cellulose and hemicellulose in the corn straw is decomposed to generate cohesive substances such as solid cellulose, liquid pectin and tannin with a macromolecular space-grid structure for trapping coal particles, molasses is added, a large number of capillary tubes existing in coal are utilized, capillary water are extruded by the coal particles under the action of the external force andare combined with the binder to cover the surfaces of the coal particles, so that adhesion among the coal particles is promoted, the molasses is viscous liquid in a semi-flowing state, when the molasses is adsorbed on the surfaces of coal-water particles, the lubricating effect of the water between the binder and the coal particles can be enhanced, in addition, the mutual repulsion among the water-coal particles can be promoted, the binder can fully wet all gaps of a material, so that the binder and the coal particles can be effectively mixed, a relatively compact structure is formed after drying is carried out, and therefore the strength of a briquette is effectively enhanced.

Description

technical field [0001] The invention relates to a preparation method and application of a biomass briquette binder, belonging to the technical field of fuel. Background technique [0002] In the coal molding process, in order to improve the compressive strength, drop strength, water immersion strength and re-drying strength of the coal molding, two or more binders can be added in the molding coal pressing process. Such binders are composite binders. In addition, people study a variety of binders, and a small amount of additives can be added to the binder. These additives can play the role of sulfur fixation, combustion support, catalysis, and waterproofing. [0003] Coal tar pitch used as briquette binder has high mechanical strength and good water resistance, and can improve the combustion characteristics of briquette, but its output is limited and the pollution is serious; petroleum tar pitch used as briquette binder has good plasticity and less smoke when burning , but ...

Claims

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Application Information

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IPC IPC(8): C10L5/10C10L10/00C10L10/02
CPCC10L5/105C10L10/00C10L10/02C10L2230/22Y02E50/30
Inventor 雷国辉张桂芳朱华
Owner 常州五荣化工有限公司
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