Low-slag granular biomass fuel

A technology of biomass pellets and fuels, which is applied in the direction of biofuels, waste fuels, fuels, etc., can solve the problems of biomass energy not being fully utilized, insufficient combustion of biomass fuels, and high gas emissions, etc., to achieve resource extremes Maximize utilization, improve utilization value, and have good combustion performance

Inactive Publication Date: 2018-11-30
合肥市晶谷农业科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the existing biomass solid fuels can replace coal-based solid fuels and petroleum-based liquid fuels, due to the slagging characteristics of biomass fuels and insufficient combustion, the slagging rate of biomass fuels is high and the combustion calorific value is high. Low, biomass energy does not play the best role, and it will also produce more ash content, more negative problems of gas emissions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A low-residue biomass granular fuel is made of the following components in parts by weight: 70 parts of corncobs, 50 parts of soybean stalks, 30 parts of sorghum stalks, 25 parts of peanut shells, 10 parts of wood chips, and 3.0 parts of a combustion enhancer. The preparation method of combustion aid comprises the following steps:

[0018] (1) Crush the natural zeolite powder until the particle size is in the range of 10-30 mesh, impregnate it with hydrochloric acid for 4-5 hours, the ratio of impregnation material to liquid is 1:3.5, the impregnation temperature is 80°C, and filter after impregnation The granules are dried at 60°C until the moisture content is between 3-5%;

[0019] (2) Mix potassium oxide, aluminum oxide, and silicon nitride in a mass ratio of 15:4:1, ball mill for 2 hours under nitrogen protection, and the ball milling speed is 300 rpm, and add step (1) The obtained dry powder is uniformly mixed and dispersed, and the mixing mass ratio of the ball m...

Embodiment 2

[0026] A low-residue biomass granular fuel is made of the following components in parts by weight: 80 parts of corn cobs, 60 parts of soybean straw, 45 parts of sorghum straw, 35 parts of peanut shells, 20 parts of wood chips, and 4.5 parts of combustion enhancer. The preparation method of combustion aid comprises the following steps:

[0027] (1) Crush the natural zeolite powder until the particle size is in the range of 10-30 mesh, impregnate with hydrochloric acid for 4.5 hours, the impregnation material-liquid ratio is 1:4.0, the impregnation temperature is 85°C, and the particles obtained by filtering after impregnation are at 65 Dry at ℃ until the water content is between 3-5%;

[0028] (2) Mix potassium oxide, aluminum oxide, and silicon nitride according to a mass ratio of 16:5:1.5, ball mill for 2.5 hours under nitrogen protection, and the ball milling speed is 320 rpm, and add step (1) The obtained dry powder is uniformly mixed and dispersed, and the mixing mass rat...

Embodiment 3

[0035] A low-residue biomass granular fuel, which is made of the following components in parts by weight: 90 parts of corncobs, 70 parts of soybean straw, 60 parts of sorghum straw, 45 parts of peanut shells, 30 parts of wood chips, and 6.0 parts of a combustion enhancer. The preparation method of combustion aid comprises the following steps:

[0036] (1) Crush the natural zeolite powder until the particle size is in the range of 10-30 mesh, impregnate with hydrochloric acid for 5 hours, the impregnation material-liquid ratio is 1:4.5, the impregnation temperature is 90°C, and the particles obtained by filtering after impregnation are at 70 Dry at ℃ until the water content is between 3-5%;

[0037] (2) Mix potassium oxide, aluminum oxide, and silicon nitride according to a mass ratio of 18:6:2, ball mill for 3 hours under nitrogen protection, and the ball milling speed is 340 rpm, and add step (1) The obtained dry powder is uniformly mixed and dispersed, and the mixing mass r...

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Abstract

The invention relates to the technical field of modern agricultural industry and discloses a low-slag granular biomass fuel. According to the biomass fuel obtained through optimizing a proportioning ratio, the problem of slag-bonding caused by insufficiency in combustion is excellently solved; the prepared granular biomass fuel is good in combustion performance, so that the percent of solid residues is lowered to 3.0% or less and reaches 1.8% to the minimum, the solid residues can be returned to fields as a fertilizer, and the damage to environments is basically absent; known from simulated combustion tests, the prepared granular biomass fuel has a combustion calorific value reaching 28MJ / kg or more; the problem during the use of the existing granular biomass fuels that the slag content ishigh is effectively solved; and the utilization value of biomass wastes and the degree of environmental protection are increased, the maximized utilization of resources and the practical significancein protecting environments can be achieved, the low-slag granular biomass fuel has a use value in development of biomass energy, and thus, the technical scheme is extremely worthy of popularization.

Description

technical field [0001] The invention belongs to the technical field of modern agricultural industry, and in particular relates to a low-residue biomass granular fuel. Background technique [0002] Biomass fuel: refers to the burning of biomass materials as fuel, generally mainly agricultural and forestry waste (such as straw, sawdust, bagasse, rice bran, etc.), which is mainly different from fossil fuels. In the current national policy and environmental protection standards, direct combustion of biomass is a highly polluting fuel, which is only used in large stoves in rural areas and is not allowed to be used in cities. The application of biomass fuel is actually mainly biomass briquette fuel, which uses agricultural and forestry waste as raw materials, and is made into various shapes (such as lumps, granules, etc.) through crushing, mixing, extrusion, drying and other processes. A new type of clean fuel that can be directly burned. [0003] Although the existing biomass s...

Claims

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Application Information

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IPC IPC(8): C10L5/44C10L9/10
CPCC10L5/445C10L9/10Y02E50/10Y02E50/30
Inventor 严晓武
Owner 合肥市晶谷农业科技开发有限公司
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