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A method for improving the combustion thermal efficiency of straw-like biomass charcoal

A technology of biomass charcoal and thermal efficiency, which is applied in the direction of biofuel, waste fuel, fuel, etc., can solve the problems of reducing harmful gas emissions, easy agglomeration and slagging, etc., to improve combustion thermal efficiency, solve easy agglomeration and slagging, Effect of reducing slagging rate

Active Publication Date: 2020-11-03
五寨县国耀绿色能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to address the existing problems and provide a method for improving the thermal efficiency of straw-based biomass charcoal combustion, which solves the problem of easy agglomeration and slagging during the combustion process of straw-based biomass charcoal, and the harmful gas in the combustion process Emissions are also significantly lower

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  • A method for improving the combustion thermal efficiency of straw-like biomass charcoal

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Embodiment 1

[0019] A method for improving the combustion thermal efficiency of straw-based biomass charcoal. In the production process of biomass charcoal fuel, the prepared sintering aid is mixed into the pretreated biomass straw, and the mixing amount is 1% of the mass of the biomass straw 0.074%, mixed in a high-speed mixer and pressed into blocks, placed in a high-temperature-resistant mica plate container, sent into a muffle furnace for heating, and carbonized. The preparation method of the sintering aid comprises the following steps:

[0020] (1) Weigh 300 grams of white mud powder and 40 grams of silicon nitride fine powder, place them in a vibrating mill and mix for 2 hours, add 2200 milliliters of sodium carbonate aqueous solution under stirring, add 0.45 grams of sodium lauryl sulfate after mixing , continuously stirred for 2 hours, stood still for 6 hours, then centrifuged at 3000 rpm for 30 minutes, poured off the supernatant liquid, and dried the solid precipitate in an oven a...

Embodiment 2

[0030] A method for improving the combustion thermal efficiency of straw-based biomass charcoal. In the production process of biomass charcoal fuel, the prepared sintering aid is mixed into the pretreated biomass straw, and the mixing amount is 1% of the mass of the biomass straw 0.075%, mixed in a high-speed mixer and pressed into blocks, placed in a high-temperature-resistant mica board container, heated in a muffle furnace, and carbonized. The preparation method of the sintering aid comprises the following steps:

[0031] (1) Weigh 305 grams of white clay powder and 42 grams of silicon nitride fine powder, place them in a vibration mill and mix for 2.5 hours, add 2250 milliliters of sodium carbonate aqueous solution under stirring, add 0.46 grams of sodium lauryl sulfate after mixing , continuously stirred for 2.5 hours, stood still for 7 hours, and then centrifuged at 3200 rpm for 35 minutes, poured off the supernatant liquid, and dried the solid precipitate in an oven at 1...

Embodiment 3

[0041] A method for improving the combustion thermal efficiency of straw-based biomass charcoal. In the production process of biomass charcoal fuel, the prepared sintering aid is mixed into the pretreated biomass straw, and the mixing amount is 1% of the mass of the biomass straw 0.076%, mixed in a high-speed mixer and pressed into blocks, placed in a high-temperature-resistant mica board container, sent into a muffle furnace for heating, and carbonized. The preparation method of the sintering aid comprises the following steps:

[0042] (1) Weigh 310 grams of white mud powder and 45 grams of silicon nitride fine powder, place them in a vibration mill and mix for 3 hours, add 2300 milliliters of sodium carbonate aqueous solution under stirring, add 0.47 grams of sodium lauryl sulfate after mixing , continuously stirred for 3 hours, stood still for 8 hours, then centrifuged at 3500 rpm for 40 minutes, poured off the supernatant liquid, and dried the solid precipitate in an oven a...

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Abstract

The invention relates to the technical field of modern agricultural industry, and discloses a method for improving the combustion thermal efficiency of straw biomass carbon. Through researches on thecombustion characteristics and the laws of combustion dynamics principles, in the production process of a biomass carbon fuel, a prepared sintering aid is mixed into pretreated biomass straw, mixed evenly in a high-speed mixer, pressed into blocks, placed in a high-temperature resistant mica plate container, sent into a muffle furnace for heating, and carbonized to obtain the fuel, and the structural characteristic can accelerate the circulation of oxygen, improves the heat transfer efficiency, allows the ambient temperature around the biomass carbon to rise rapidly, ensures continuous, stableand high-speed combustion operation, improves the combustion thermal efficiency, prevents alkali metal elements in ash from generating compounds with low melting points, reduces the slagging rate, increases the slagging temperature of the straw biomass carbon fuel, solves the problem of easy agglomeration and slagging in the combustion process of the straw biomass carbon, and significantly reduces the emission of harmful gases in the combustion process.

Description

technical field [0001] The invention belongs to the technical field of modern agricultural industry, and in particular relates to a method for improving the combustion thermal efficiency of straw-like biomass charcoal. 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 direct...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L9/10C10L5/44
CPCC10L5/447C10L9/10Y02E50/10Y02E50/30
Inventor 孟凡辉郑洋崔涛孟伟
Owner 五寨县国耀绿色能源有限公司
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