Coal-quality machine-made charcoal preparation method

A technology of mechanism charcoal and coal quality, applied in special forms of dry distillation, solid fuels, biofuels, etc., can solve the problems of insufficient industrialization, low output, limited source of raw materials, etc. The effect of resource utilization

Inactive Publication Date: 2017-01-11
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Publication No. CN104150463A uses traditional Chinese medicine residues to prepare machine-made charcoal. Publication No. CN105400529A uses hickory shells to prepare machine-made charcoal. Publication No. CN1888031A uses bamboo or

Method used

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  • Coal-quality machine-made charcoal preparation method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0016] Example 1

[0017] The preparation method of coal-based machine-made charcoal includes the following specific steps:

[0018] (1) Break the lignite and biomass charcoal into 0.1~0.5mm lignite particles and biomass charcoal particles respectively;

[0019] (2) The 0.1-0.5mm lignite particles in step (1) are carbonized at 700°C in isolation from the air for 6 hours, and then cooled to room temperature to obtain a carbonized product;

[0020] (3) Mix the carbonized product obtained in step (2), the biomass charcoal particles obtained in step (1) and the binder according to the mass ratio of 80:18:2, and then add water and stir to obtain a mixture material. The mixture material contains water The control is 10% of the mass of the mixture; among them, the biomass charcoal is pine nut shell charcoal; the binder is composed of 40wt% sodium humate, 45% industrial starch, 5wt% water glass (concentration of 400g / L) and 10wt% bentonite Become

[0021] (4) The mixture material obtained in ...

Example Embodiment

[0023] Example 2

[0024] The preparation method of coal-based machine-made charcoal includes the following specific steps:

[0025] (1) Crush lignite and biomass charcoal into 0.5-1mm lignite particles and biomass charcoal particles;

[0026] (2) The 0.5-1mm lignite particles in step (1) were carbonized at 800°C in isolation from the air for 4 hours, and then cooled to room temperature to obtain a carbonized product;

[0027] (3) The carbonized product obtained in step (2), the biomass carbon particles obtained in step (1) and the binder are uniformly mixed according to the mass ratio of 95:0:5, and then water is added and stirred evenly to obtain a mixture. The mixture contains water The control is 15% of the mass of the mixture; among them, the biomass charcoal is straw charcoal; the binder is composed of 40wt% sodium humate, 45wt% industrial starch, 5wt% water glass (with a concentration of 600g / L) and 10wt% bentonite. to make

[0028] (4) The mixture material obtained in step (3)...

Example Embodiment

[0030] Example 3

[0031] The preparation method of coal-based machine-made charcoal includes the following specific steps:

[0032] (1) Crush lignite and biomass charcoal into lignite particles and biomass charcoal particles of 1-2 mm;

[0033] (2) The lignite particles of 1 to 2 mm in step (1) were carbonized at 600°C for 8 hours in isolation from the air, and then cooled to room temperature to obtain carbonized products;

[0034] (3) The carbonized product obtained in step (2), the biomass charcoal particles obtained in step (1) and the binder are mixed uniformly according to the mass ratio of 60:35:5, and then water is added and stirred evenly to obtain a mixture. The mixture contains water The control is 10% of the mass of the mixture; the biomass charcoal is bagasse charcoal; the binder is mixed with 40wt% sodium humate, 45% industrial starch, 5wt% water glass (with a concentration of 700g / L) and 10wt% bentonite Become

[0035] (4) The mixture material obtained in step (3) is pr...

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Abstract

The invention belongs to the technical field of machine-made charcoal and relates to a coal-quality machine-made charcoal preparation method. The method includes: crushing brown coal and biomass charcoal into 0.1-2mm of brown coal particles and biomass charcoal particles respectively; charring the 0.1-2mm of brown coal particles at 600-800 DEG C for 4-8h under a condition of air isolation, and cooling to the room temperature to obtain carbides; well mixing the carbides, the biomass particles and adhesives according to a mass ratio of 60-95:0-35:2-5, adding water, and well mixing to obtain mixed materials, wherein moisture in the mixed materials is controlled to be 10-15% of the mass of the mixed materials; subjecting the obtained mixed materials to compression moulding under a pressure of 0.5-1MPa, and drying at 100-200 DEG C to obtain coal-quality machine-made charcoal. The coal-quality machine-made charcoal prepared according to the method is low in cost, environment friendly and excellent in combustion performance.

Description

technical field [0001] The invention relates to a method for preparing coal-based machine-made charcoal, which belongs to the technical field of machine-made charcoal. Background technique [0002] For a long time, energy issues have been valued by countries all over the world. my country is a big energy consumer. 2015 is the final year of the Twelfth Five-Year Plan. Annual coal consumption accounts for 64.0% of total energy consumption, and clean energy consumption accounts for 17.9% of the total, and other energy sources accounted for 18.1%. It can be seen from the energy consumption that coal is the main energy source, among which coal is the main energy structure that is difficult to change in a long period of time, and most of them use high-quality coal, resulting in a low utilization rate of coal and a serious waste of resources. According to statistics, every 1 ton of standard coal burns about 26kg of carbon dioxide, about 24kg of sulfur dioxide, and about 7kg of nitr...

Claims

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Application Information

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IPC IPC(8): C10L5/04C10L5/10C10L5/44C10B53/04
CPCY02E50/10Y02E50/30C10L5/04C10B53/04C10L5/105C10L5/447
Inventor 伍继君周业强马文会夏振飞魏奎先雷云秦博李昕何玮杨斌戴永年
Owner KUNMING UNIV OF SCI & TECH
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