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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

AI Technical Summary

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 bamboo fertilizers to prepare machine-made charcoal. Although these machine-made charcoals prepared are environmentally friendly, the sources of raw materials are limited, and the output is small and insufficient. to industrialize

Method used

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  • Coal-quality machine-made charcoal preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0018] (1) Broken lignite and biomass charcoal into lignite particles and biomass charcoal particles of 0.1-0.5 mm;

[0019] (2) Carbonize the 0.1-0.5mm lignite particles in step (1) at 700°C for 6 hours in isolation from the air, and cool to room temperature to obtain carbonized products;

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

[0021] (4) The mixed material obtained in step (3) is pressed into shape under a pressure of 0.5 MPa, and dried at 15...

Embodiment 2

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

[0025] (1) Broken lignite and biochar into lignite particles and biochar particles of 0.5-1mm respectively;

[0026] (2) Carbonize the 0.5-1mm lignite particles in step (1) at 800°C for 4 hours in isolation from the air, and cool to room temperature to obtain carbonized products;

[0027] (3) Mix the carbonized product obtained in step (2), the biochar particles obtained in step (1) and the binder according to the mass ratio of 95:0:5, and then add water and stir evenly to obtain a mixed material, which contains water The control is 15% of the mass of the mixed material; the biomass charcoal is straw charcoal; the binder is composed of 40wt% sodium humate, 45wt% industrial starch, 5wt% water glass (concentration: 600g / L) and 10wt% bentonite. become

[0028] (4) Compress the mixed material obtained in step (3) under a pressure of 1 MPa, and dry it at 100°C to obtain coal-base...

Embodiment 3

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

[0032] (1) Broken lignite and biochar into 1-2mm lignite particles and biochar particles;

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

[0034] (3) Mix the carbonized product obtained in step (2), the biochar particles obtained in step (1) and the binder according to the mass ratio of 60:35:5, and then add water and stir evenly to obtain a mixed material, which contains water The control is 10% of the mass of the mixed material; the biochar is bagasse charcoal; the binder is composed of 40wt% sodium humate, 45wt% industrial starch, 5wt% water glass (concentration: 700g / L) and 10wt% bentonite. Made

[0035] (4) The mixed material obtained in step (3) is pressed into shape at a pressure of 0.5 MPa, and dried at 200°C to obtain coal-based machine-made ch...

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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
CPCC10B53/04C10L5/04C10L5/105C10L5/447Y02E50/10Y02E50/30
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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