Production process of biomass carbon-based briquetted coal for replacing fossil fuel

A biomass carbon source and fossil fuel technology, applied in the direction of fuel, solid fuel, biofuel, etc., can solve the problems of low boiler steam pressure and steam production, can not meet the needs of industrial production, can not meet the requirements of industrial molding, etc., to achieve Reduce the burning speed, have significant environmental protection benefits, and promote the effect of internal diffusion and circulation

Inactive Publication Date: 2013-07-10
周之海
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Because the values ​​of lignin, cellulose, and hemicellulose contained in various biomass (agricultural and forestry wastes) are different, and the softness and hardness of the texture are also different, so simple granulation or low-pressure molding is far from being able to meet the needs of various types of biomass (agricultural and forestry waste). For the industrial molding requirements of biomass (agricultural and forestry waste), the cold and hot strength of the product is extremely weak, and the thermal stability tends to be zero.
Seriously affects the combustion efficiency of the boiler, the steam pressure and steam production of the boiler are far below the design capacity, so that it cannot meet the normal industrial production needs

Method used

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  • Production process of biomass carbon-based briquetted coal for replacing fossil fuel
  • Production process of biomass carbon-based briquetted coal for replacing fossil fuel
  • Production process of biomass carbon-based briquetted coal for replacing fossil fuel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] In the above-mentioned steps, taking cotton stalks as an example, the present invention is further described:

[0038] 1. Crush 100kg of cotton stalks into pieces of 2-6mm, dry until the water weight content is 4%, add 2g of potassium permanganate oxidant, 20g of vermiculite expansion agent and 400g of calcium lignosulfonate binder, and carry out Stir well to make it even. The chemical composition of the vermiculite used in the present invention: SiO2 37-42%, Al2O3 10-13%, MgO 14-23%, Fe2O3: 5-18%, CaO 0.5-0.8%.

[0039] 2. The first-level pre-compression process is: the material in step 1 enters the pre-compression cylinder from the feed port of the cone screw compressor through the screw conveyor, and is squeezed when the cone screw rod pushes the material forward. The material of step 1 to the material whose compression ratio (volume) is 4:1. At this stage, the lower pressure is transferred to the biomass particles, so that the original loosely packed solid particl...

Embodiment 2

[0047] In the above-mentioned steps, take sawdust (Chinese fir) as an example, the present invention will be further described:

[0048] 1. Dry 100kg of sawdust (Chinese fir) to a moisture content of 6%, add 2g of potassium permanganate oxidant, 20g of vermiculite expansion agent and 100g of calcium lignosulfonate binder, and fully stir to make it even . The practical vermiculite chemical composition of the present invention: SiO2 37~42%, Al2O3 10~13%, MgO 14~23%, Fe2O35~18%, CaO 0.5~0.8%.

[0049] The preparation method is the same as in Example 1.

[0050] Comparison of biomass carbon source briquette coal produced with wood chips (fir) as the main raw material and GB / T 18342-2009 "Technical Conditions for Coal Used in Chain Grate Boilers":

[0051]

Embodiment 3

[0053] In the above-mentioned steps, take the peanut shell as an example, the present invention is further described:

[0054] Peanut shells are crushed into 2-6mm fragments, dried until the water weight content is 6%, 2g of potassium permanganate oxidizing agent, 20g of vermiculite expansion agent and 400g of calcium lignosulfonate binder are added, and fully stirred, Make it even. The practical vermiculite chemical composition of the present invention: SiO2 37~42%, Al2O3 10~13%, MgO 14~23%, Fe2O35~18%, CaO 0.5~0.8%.

[0055] The preparation method is the same as in Example 1.

[0056] Comparison of biomass carbon source briquettes produced with peanut shells as the main raw material and GB / T 18342-2009 "Technical Conditions for Coal Used in Chain Grate Boilers":

[0057]

[0058] The raw material sources of the following examples: rice straw (husk) and peanut shells are all industrial and agricultural production residues in various places. Its industrial analysis compo...

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Abstract

The invention discloses biomass carbon-based briquetted coal for replacing fossil fuel. The biomass carbon-based briquetted coal for replacing fossil fuel, based on 100 mass parts of agricultural and forest biomass raw material, comprises the following auxiliary materials: 0.01 to 0.05 mass percent of swelling agent, 0.001 to 0.005 mass percent of potassium permanganate oxidizer and 0.1 to 0.5 percent of calcium lignosulphonate organic binder. The production process comprises: crushing, drying, mixing and stirring the raw materials; subjecting the stirred raw materials to primary prepressing and secondary compression forming, and performing moisture regain preventing treatment; and finally, packaging finished product. Besides high density, convenience for storage and transport, high combustibility, high combustion performance, high heat efficiency, the biomass carbon-based briquetted coal produced by the process also has the advantages of generating less ash, hardly generating SO2 andNOx during combustion, avoiding environment pollution and the like. The carbon-based fuel disclosed by the invention is prepared from widely available raw materials and is environment-friendly, and the environmental-protection benefit of the carbon-based fuel is very obvious.

Description

technical field [0001] The invention relates to a biomass energy carbon source briquette and a production process, in particular to a biomass carbon source briquette that uses agricultural and forestry biomass energy instead of fossil fuels for boilers and a production process. Background technique [0002] Biomass energy is the fourth largest energy source in the world after coal, oil and natural gas. Biomass is the only renewable carbon source. Therefore, biomass energy has great compatibility with modern industrial technology and modern life. [0003] At present, the fuel for industrial (living) boilers is mainly coal, which belongs to fossil energy, and its CO2 emission is large, energy consumption is high, and pollution is heavy. In recent years, as countries around the world have paid more and more attention to the issue of energy conservation and emission reduction, the comprehensive utilization of biomass energy (agricultural and forestry waste) has also emerged. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L5/44
CPCY02E50/30Y02E50/10
Inventor 任海芳冯崇谦陈永益冯璇冯晓炜朱维建
Owner 周之海
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