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Briquette coal binder, biomass briquette and preparation method thereof

A technology of binder and biomass, which is applied in the field of preparation of briquette binder, biomass briquette and biomass briquette, can solve the problems of difficult control of addition amount, complicated production process and high ash content of briquette, and achieves the Excellent drop strength index, simple production process and high compressive strength

Inactive Publication Date: 2019-04-19
XINJIANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides a kind of briquette binder, the preparation method of briquette binder, the preparation method of biomass briquette and biomass briquette, overcomes the deficiency of above-mentioned prior art, and it can effectively solve the problem of adopting existing The briquettes prepared by the technology have high ash content, low carbon content, easy scaling, poor thermal stability, complex production process, high cost, and difficult to control the amount of addition

Method used

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  • Briquette coal binder, biomass briquette and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0025] Example 1, the briquette binder is obtained according to the following preparation method: First, the biomass raw material I is crushed into particles with a particle size of 0.090mm to 0.212mm, and the pulverized biomass raw material I3 is taken in parts by weight. .6 parts to 12.8 parts, 64 parts to 96 parts of extraction solvent, extract biomass raw material I with extraction solvent, extraction temperature is 300°C to 350°C, extraction time is 30min to 90min, extraction pressure is 2MPa to 3MPa, extraction After completion, the extract is selected as a briquette binder. In this example, the hot-solution extraction method is used to treat the biomass raw material I. Generally, the biomass raw material I is biomass waste, and the extract and extraction residue are obtained. The extract is subjected to industrial analysis, elemental analysis, and thermoplastic analysis. Characterization shows that the extract has similar physical and chemical properties compared with a...

Embodiment 2

[0026] Example 2, the briquette binder is obtained according to the following preparation method: First, the biomass raw material I is crushed into particles with a particle size of 0.090mm or 0.212mm, and the pulverized biomass raw material I3 is taken in parts by weight. .6 parts or 12.8 parts, 64 parts or 96 parts of extraction solvent, use the extraction solvent to extract the biomass material I, the extraction temperature is 300°C or 350°C, the extraction time is 30min or 90min, the extraction pressure is 2MPa or 3MPa, the extraction After completion, the extract is selected as a briquette binder.

Embodiment 3

[0027] Embodiment 3, as the optimization of the foregoing embodiment, the extraction solvent is 1-methylnaphthalene or washing oil. Other coal tar fractions are also possible.

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Abstract

The invention relates to the technical field of briquettes, and relates to a briquette binder, preparation method of a briquette binder, a biomass briquette and a preparation method of the biomass briquette, the briquette binder is prepared by the following steps: crushing biomass raw materials, and treating the biomass raw material i by adopting a hot-dissolving extraction method to obtain the briquette coal binder. The method disclosed by the invention mainly uses agricultural and forestry wastes such as wheat straws, pine wood chips, cotton straws, corn straws, rice straws and the like as the biomass raw materials, and prepares the biomass briquette by virtue of a hot press molding process; the biomass briquette prepared by the method disclosed by the invention is high in forming rate,the heat stability is good, the drop strength index is excellent, the ignition point is low, compressive strength is high, heat value is high, the production process is simple in operation and high infeasibility, the raw materials are wide in source and low in price, the biomass resources such as agriculture and forestry wastes can be effectively utilized, contribution is made to environmental protection, and resource utilization and energy utilization of biomass such as the agriculture and forestry wastes are realized, so that low-rank coal can be cleaned and efficiently utilized.

Description

technical field [0001] The invention relates to the technical field of molded coal, and relates to a molded coal binder, a preparation method of the molded coal binder, a biomass molded coal and a preparation method of the biomass molded coal. Background technique [0002] China's energy structure determines that coal will be used as the main energy consumption for a long period of time in the future, but coal combustion will produce a large amount of dust, NO 2 , CO 2 and SO 2 Pollutants such as coal and other pollutants cause serious environmental pollution problems, so the development of clean coal technology is an inevitable trend of my country's energy development. With the continuous improvement of coal mining mechanization, the proportion of pulverized coal in raw coal is also increasing. The increase in the proportion of pulverized coal not only reduces the combustion efficiency of loose coal, but also seriously pollutes the environment. The development of brique...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/14C10L5/22C10L5/44
CPCC10L5/14C10L5/22C10L5/442C10L5/445Y02E50/10Y02E50/30
Inventor 李显坚一明马凤云钟梅刘景梅
Owner XINJIANG UNIVERSITY
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