Method for preparing efficient biomass briquettes

A technology of briquetting fuel and biomass, which is applied in the fields of biofuel, waste fuel, fuel, etc., can solve the problems of difficult to control the real calorific value, moisture content and ash content of briquette fuel, affecting sales volume, complex processing technology, etc. Crisis issues, the achievement of sustainable development, and the effect of expanding application value

Inactive Publication Date: 2016-12-07
GUANGXI NANNING SHENGQIAN TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still major problems in my country's biomass briquette fuel. The processing technology is complicated, difficult, energy-consuming, and costly; the real calorific value, moisture content and ash content of briquette fuel are difficult to control; , easy to accumulate ash, so that the fuel combustion is insufficient, not only pollutes the environment but also corrodes the production equipment; because the raw material for processing and granulation is high-fiber material, the raw material is loose, the size and material are diverse, and it is difficult to press into dense particles when the particles are formed. shape; the rough surface and various shapes of the formed particles also affect the sales volume, these problems seriously restrict the large-scale production of biomass briquettes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for preparing high-efficiency biomass briquettes, comprising the following steps:

[0026] (1) Put 100kg of peanut shells into a grinder and crush them to 40 mesh to obtain peanut shell powder;

[0027] (2) Add peanut shell powder, 7kg of magnesium oxide, 5kg of red mud and 2kg of cobalt carbonate to the mixer, then add 120kg of water, and stir for 20min at a speed of 500r / min to obtain a paste;

[0028] (3) Take the above-mentioned paste and put it into a horse boiling furnace, and roast it at a temperature of 600°C for 4 hours to obtain a carbonized product;

[0029] (4) Mix the charcoal with 6kg of sodium carboxymethyl cellulose mortar and 7kg of epoxy asphalt evenly, and then transfer the obtained mixture to a molding machine for extrusion molding at a temperature of 110°C and a pressure of 80Mpa to obtain a molding fuel ;

[0030] (5) Dry the briquette fuel at a temperature of 60°C until the water content is 8%, cool to room temperature, and pack to obta...

Embodiment 2

[0032] A method for preparing high-efficiency biomass briquettes, comprising the following steps:

[0033] (1) Put 100kg of peanut shells into a grinder and crush them to 40 mesh to obtain peanut shell powder;

[0034] (2) Add peanut shell powder, 5kg of magnesium oxide, 7kg of red mud and 3kg of cobalt carbonate to the mixer, then add 120kg of water, and stir for 30min at a speed of 300r / min to obtain a paste;

[0035] (3) Take the above-mentioned paste and put it into a horse boiling furnace, and roast it at a temperature of 700°C for 3.5 hours to obtain a carbonized product;

[0036] (4) Mix the charcoal with 10kg of sodium carboxymethyl cellulose mortar and 5kg of epoxy asphalt evenly, and then transfer the obtained mixture to the molding machine, and extrude it at a temperature of 120°C and a pressure of 100Mpa to obtain a molding fuel ;

[0037] (5) Dry the briquette fuel at a temperature of 60°C until the water content is 8%, cool to room temperature, and pack to obta...

Embodiment 3

[0039] A method for preparing high-efficiency biomass briquettes, comprising the following steps:

[0040] (1) Put 100kg of peanut shells into a grinder and crush them to 60 mesh to obtain peanut shell powder;

[0041] (2) Add peanut shell powder, 8kg of magnesium oxide, 8kg of red mud and 3kg of cobalt carbonate to the mixer, then add 150kg of water, and stir for 30min at a speed of 500r / min to obtain a paste;

[0042] (3) Take the above-mentioned paste and put it into a horse boiling furnace, and roast it at a temperature of 800°C for 3.5 hours to obtain a carbonized product;

[0043] (4) After mixing the charcoal with 8kg of sodium carboxymethyl cellulose mortar and 8kg of epoxy asphalt evenly, the obtained mixture is transported to a molding machine, and extruded at a temperature of 130°C and a pressure of 80Mpa to obtain a molding fuel ;

[0044] (5) Dry the briquette fuel at a temperature of 80°C until the moisture content is 6%, cool to room temperature, and pack to o...

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Abstract

The invention discloses a method for preparing efficient biomass briquettes. The method comprises the steps of adding peanut shells into a pulverizer to obtain 40-60-mesh peanut shell powder through pulverizing; adding the peanut shell powder, magnesium oxide, red mud and cobalt carbonate into a stirrer, then adding a proper amount of water, and conducting stirring to obtain paste; placing the paste in a muffle furnace for roasting lasting 3-4 h at 600-800 DEG C, so that a carbide is obtained; evenly mixing the carbide with sodium carboxymethylcellulose mucilage and epoxy asphalt to obtain a mixture, and conveying the mixture to a forming machine for extrusion forming at 110-130 DEG C under the pressure of 60-80 Mpa, so that briquette fuel is obtained; drying the briquette fuel, reducing temperature to room temperature, and conducting packaging to obtain the biomass briquettes. The biomass briquettes have a calorific value of 25-30 MJ/kg, ash content of 2.5-4.0% and water absorption of 8-10%, and various performances are all higher than those of products currently available in the market.

Description

technical field [0001] The invention relates to the technical field of biomass fuel processing, in particular to a method for preparing high-efficiency biomass briquette fuel. Background technique [0002] For a long time, fossil fuels such as oil, natural gas and coal have been the main energy consumed by human beings, and have made great contributions to the prosperity of human economy, social progress and improvement of living standards. However, since mineral resources such as coal, oil and natural gas are non-renewable, the resources are limited and are facing the danger of being gradually depleted. In recent years, energy and environmental issues have become increasingly prominent, energy prices have continued to rise, and the research and development of bioenergy has become a hot spot around the world. my country is a large agricultural country with abundant biomass resources. However, the utilization rate of crop leftovers is only 20-30%, and about half of the crop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/44C10L10/02C10L9/10
CPCC10L5/40C10L5/445C10L9/10C10L10/02C10L2290/08C10L2290/32Y02E50/10Y02E50/30
Inventor 杨佩华
Owner GUANGXI NANNING SHENGQIAN TECH DEV CO LTD
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