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Preparation method of biomass solid fuel

A solid fuel and biomass technology, which is applied in the field of biomass solid fuel preparation, can solve the problems of difficult to control the real calorific value, moisture content and ash content of briquette fuel, affect sales volume, easy to accumulate ash, etc., so as to alleviate the problem of energy crisis. , to achieve the effect of sustainable development and improved reactivity

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

[0026] A preparation method of biomass solid fuel, the specific operation steps are as follows:

[0027] (1) Add 100 kg of cassava distiller's grains with a water content of 12% into a pulverizer and pulverize to 40 mesh to obtain cassava distiller's grains powder;

[0028] (2) Add cassava distiller's grain powder, 6kg of magnesium oxide, 5kg of carbide slag, 6kg of attapulgite, and 3kg of bismuth vanadate into the mixer, then add 120kg of water, and stir for 30min at a speed of 300r / min to obtain a paste;

[0029] (3) Take the above paste and put it into a horse boiling furnace, and roast it at a temperature of 500°C for 5 hours to obtain a carbonized product;

[0030] (4) After the charcoal is evenly mixed with 5kg of polyurethane glue and 3kg of polyurethane asphalt, the obtained mixture is transported to a molding machine, and extruded at a temperature of 120°C and a pressure of 80Mpa to obtain a molding fuel;

[0031] (5) Dry the molded fuel at a temperature of 100°C unt...

Embodiment 2

[0033] A preparation method of biomass solid fuel, the specific operation steps are as follows:

[0034] (1) Add 100 kg of cassava distiller's grains with a water content of 12% into a pulverizer and pulverize to 40 mesh to obtain cassava distiller's grains powder;

[0035] (2) Add cassava distiller's grains powder, 8kg of magnesium oxide, 4kg of carbide slag, 7kg of attapulgite, and 4kg of bismuth vanadate into the mixer, then add 150kg of water, and stir for 20min at a speed of 500r / min to obtain a paste;

[0036] (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;

[0037] (4) After the charcoal is evenly mixed with 4kg of polyurethane glue and 4kg of polyurethane asphalt, the obtained mixture is transported to a molding machine, and extruded at a temperature of 130°C and a pressure of 60Mpa to obtain a molding fuel;

[0038] (5) Dry the molded fuel at a temperature o...

Embodiment 3

[0040] A preparation method of biomass solid fuel, the specific operation steps are as follows:

[0041] (1) Add 100kg of cassava distiller's grains with a water content of 12% into a pulverizer and pulverize to 60 mesh to obtain cassava distiller's grains powder;

[0042] (2) Add cassava distiller's grains powder, magnesia 10kg, carbide slag 6kg, attapulgite 5kg, and bismuth vanadate 4kg into the mixer, then add 120kg of water, and stir for 30min at a speed of 300r / min to obtain a paste;

[0043] (3) Take the above-mentioned paste and put it into a horse boiling furnace, and roast it at a temperature of 600°C for 3 hours to obtain a carbonized product;

[0044] (4) After the charcoal is evenly mixed with 6kg of polyurethane glue and 5kg of polyurethane asphalt, the obtained mixture is transported to a molding machine, and extruded at a temperature of 140°C and a pressure of 80Mpa to obtain a molding fuel;

[0045] (5) Dry the molded fuel at a temperature of 80°C until the wa...

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Abstract

The invention discloses a preparation method of biomass solid fuel. The method includes the steps of adding cassava lees into a smashing machine to be smashed to be 40-60 mesh to obtain cassava lee powder, adding the cassava lee powder, magnesium oxide, acetylene sludge, attapulgite and pucherite into a stirring device, adding a proper amount of water to be stirred into paste, putting the paste into a muffle furnace to be sintered for 3-5 h at a temperature of 500-600 DEG C to obtain carbide, evenly mixing the carbide with polyurethane rubber and polyurethane asphalt, conveying the obtained mixed materials to a forming machine to be press-formed at a temperature of 120-140 DEG C and pressure of 60-80 MPa to obtain formed fuel, drying the formed fuel, cooling the fuel to the room temperature, and packaging the fuel to obtain the biomass solid fuel. The method has the advantages of being simple in preparation process, low in energy consumption, high in production efficiency, high in forming rate, low in cost and the like; the prepared biomass solid fuel is low in density, high in heat value, small in ash content, small in production internal gap, free of loosening, good in humidity resistance, capable of being stored for a long time and suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of biomass fuel processing, in particular to a preparation method of biomass solid 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 waste is abandoned...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/48C10L5/04C10L5/40
CPCC10L5/04C10L5/40C10L5/48C10L2200/04C10L2200/0453C10L2300/20C10L2300/40Y02E50/30
Inventor 杨佩华
Owner GUANGXI NANNING SHENGQIAN TECH DEV CO LTD
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