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Biomass moulded coal and preparation method thereof

A biomass, inferior technology, applied in the direction of biofuels, waste fuels, solid fuels, etc., can solve the problems of slow industrialization of boiler fuel briquette, achieve good desulfurization and waterproofing effect, low ignition point, and protect the environment.

Inactive Publication Date: 2011-03-16
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the technology, price and market of industrial briquette, the industrialization of boiler fuel briquette is slow

Method used

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  • Biomass moulded coal and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Sieve the anthracite coal powder and crush the bagasse to ensure that the maximum particle size of the anthracite pulverized coal and bagasse is below 3mm. Take by weighing inferior anthracite pulverized coal 500g, bagasse 400g, both mix homogeneously, then take by weighing sulfur-fixing agent unslaked lime 30g, biomass binding agent 35g (binding agent is to use 5g concentration to be 1% sodium hydroxide solution and 30g of bagasse, mixed with the obtained mixture after stirring for 5 minutes), oxidant potassium permanganate 20g and waterproofing agent tar 15g, after the additives are mixed evenly, then mixed with the mixed raw materials and mixed evenly with water, and then use the self-made mold wet low pressure Shaped to obtain spherical biomass briquettes with a diameter of 50 mm, which are matured at room temperature.

Embodiment 2

[0024] Sieve low-quality anthracite pulverized coal and crush bagasse to ensure that the maximum particle size of anthracite pulverized coal and bagasse is below 3mm. Take by weighing inferior anthracite pulverized coal 600g, bagasse 300g, both mix homogeneously, then take by weighing sulfur-fixing agent unslaked lime 35g, biomass binding agent 30g (binding agent is the sodium hydroxide solution that is 2% with 5g mass concentration Mix with 25g bagasse, stir the obtained mixture after 5 minutes), oxidant potassium permanganate 20g mix evenly, then add water and mix evenly with the mixed raw materials, then mix with 15g waterproofing agent tar and wet with a self-made mold Low-pressure forming method, can obtain spherical biomass briquettes with a diameter of 50mm, and mature at room temperature.

Embodiment 3

[0026] Sieve low-quality anthracite pulverized coal and crush bagasse to ensure that the maximum particle size of anthracite pulverized coal and bagasse is below 3mm. Take by weighing inferior anthracite pulverized coal 500g, bagasse 400g, both mix homogeneously, then take by weighing 40g of sulfur-fixing agent unslaked lime, 25g of biomass binding agent (binding agent is the sodium hydroxide solution of bagasse with mass concentration 1.5%) Gained light yellow viscous matter after treatment), oxidant potassium permanganate 20g and water repellent tar 15g, after the additives are mixed evenly, then add water to mix evenly with the raw materials that have been mixed, then use the self-made mold wet method low-pressure molding, can get the diameter It is a 50mm spherical biomass briquette, matured at room temperature.

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Abstract

The invention provides a method for preparing biomass moulded coal by using biomass and inferior smokeless pulverized coal as raw materials. The biomass moulded coal is prepared by uniformly mixing the biomass, the inferior smokeless pulverized coal and additives (a sulfur fixation agent, a biomass binder, an oxidant and a waterproofing agent), and performing low-pressure compression moulding by a wet method, wherein the sulfur fixation agent is calcined lime CaO; the biomass binder is light yellow dope prepared by treating bagasse by using 1 to 2 percent sodium hydroxide solution; the oxidant is potassium permanganate; and the waterproofing agent is tar or a binder. The biomass moulded coal comprises following raw materials in part by mass: 40 to 65 parts of inferior smokeless pulverized coal, 25 to 55 parts of biomass and 5 to 10 parts of additive. The biomass moulded coal has the advantages of low cost, low ignition point, high burn-off rate and integrative desulfurization and water proofing performance, and has great significance of energy conservation and environmental protection.

Description

technical field [0001] The invention relates to the technical field of bioenergy; more specifically, it relates to biomass briquettes and a preparation method thereof. Background technique [0002] Bagasse is the dregs after pressing sugarcane sugar. It has a rough texture and accounts for about 24% to 27% of sugarcane (including about 50% moisture). For every ton of sucrose produced, 2 to 3 tons of Bagasse. Approximate analysis of wet bagasse shows that bagasse is rich in cellulose and less in lignin. Bagasse can be used as cheap roughage, but due to its high degree of lignification, low digestibility, and low protein and energy content, it is not directly used as feed for ruminants, and can only be fed in small amounts, and must be combined with protein feed Feed with energy feed. Guangdong Province is rich in sugarcane and has many sugar factories, but the bagasse has not been effectively utilized and accumulated in large quantities to pollute the environment. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/02C10L5/14C10L5/44
CPCY02E50/10Y02E50/30
Inventor 杨奇飞
Owner SOUTH CHINA UNIV OF TECH
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