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Anthracite composite fuel, composite coal and preparation method for composite coal

A composite fuel and composite briquette technology, applied in the field of fuel, can solve the problems of reducing the calorific value of coal combustion and large amount of black smoke emission

Inactive Publication Date: 2015-12-02
BAISHAN YITONG ECONOMY & TRADE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The straw briquette improves the combustion performance of straw, improves the utilization efficiency, and expands the application range, which not only saves energy, but also protects the environment, forming a virtuous circle in coal production, processing, and comprehensive utilization; however, the ash produced by it is relatively high, which will reduce the The calorific value of coal combustion has a large amount of black smoke

Method used

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  • Anthracite composite fuel, composite coal and preparation method for composite coal

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preparation example Construction

[0034] In the present invention, the preparation method of the anthracite composite fuel preferably comprises the following steps:

[0035] Anthracite coal powder, gas coal powder, plant fiber, binder, desulfurizer and water are mixed to obtain anthracite composite fuel.

[0036] In the present invention, the consumption, source and type of the anthracite powder, gas coal powder, plant fiber, binding agent, desulfurizer and water are the same as those of the anthracite coal powder, gas coal powder, plant fiber, binding agent described in the above technical scheme , desulfurizer and water are the same in amount, source and type, and will not be repeated here.

[0037] In the present invention, there is no special limitation on the method of mixing the anthracite composite fuel, and a mixing technical solution well known to those skilled in the art can be used.

[0038] The invention provides a composite briquette made of the anthracite composite fuel described in the above te...

Embodiment 1

[0062] The corn stalks are sequentially flattened, cut open and cut to obtain fiber filaments;

[0063] The fiber silk is fully soaked in water to obtain corn stalk fiber silk; the length of the corn stalk fiber silk is 10-20 mm, and the diameter is 0.5-1 mm; the water content of the corn stalk fiber silk is 15 wt %;

[0064] Mix 53 parts by weight of anthracite powder, 32 parts by weight of gas coal powder, 2.5 parts by weight of the above-mentioned corn stalk fiber silk, 6 parts by weight of cement, 1.5 parts by weight of calcium hydroxide and 5 parts by weight of water, and stir to obtain a mixture;

[0065] Press the mixture with a molding machine to obtain briquettes, the pressing temperature is 20°C, and the pressing pressure is 300MPa;

[0066] The briquettes are sprayed with mist-like water, and the amount of water sprayed should be kept moist inside and outside the briquettes, and then condensed at 20° C. for 48 hours to obtain composite briquettes.

[0067] The mold...

Embodiment 2

[0074] The corn stalks are sequentially flattened, cut open and cut to obtain fiber filaments;

[0075] The fiber silk is fully soaked in water to obtain corn stalk fiber silk; the length of the corn stalk fiber silk is 10-20 mm, and the diameter is 0.5-1 mm; the water content of the corn stalk fiber silk is 15 wt %;

[0076] Mix 58 parts by weight of anthracite powder, 28.5 parts by weight of gas coal powder, 3.5 parts by weight of the above-mentioned corn stalk fiber, 4.5 parts by weight of cement, 2 parts by weight of calcium hydroxide and 3.5 parts by weight of water, and stir to obtain a mixture;

[0077] Press the mixture with a molding machine to obtain briquettes, the pressing temperature is 20°C, and the pressing pressure is 300MPa;

[0078] The briquettes are sprayed with mist-like water, and the amount of water sprayed should be kept moist inside and outside the briquettes, and then condensed at 20° C. for 48 hours to obtain composite briquettes.

[0079] The moldi...

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Abstract

The invention provides an anthracite composite fuel, a composite coal and a preparation method for composite coal. The anthracite composite fuel is prepared from the following components in parts by weight: 53-60 parts of pulverized anthracite, 25-32 parts of gas pulverized coal, 2.5-3.5 parts of plant fiber, 4-6 parts of a binding agent, 1.5-2.5 parts of a desulfurization agent and 3-5 parts of water. The anthracite composite fuel provided by the invention comprises pulverized anthracite, gas pulverized coal and plant fiber, so that the content of ash generated after the combustion of the anthracite composite fuel is lower, the combustion heating value is larger; the compression strength is larger; the sulfur emission is lower; an excellent ecological benefit is provided; the anthracite composite fuel is smokeless and combustible, and can realize staged combustion. Experimental results show that the content of ash generated after the combustion of the composite coal prepared from the composite fuel is 13-18%, the combustion heating value is 6000-7000 kcal, the compression strength is 80-100 MPa, and the sulfur emission is 0.07-0.11%.

Description

technical field [0001] The invention relates to the technical field of fuels, in particular to an anthracite composite fuel, composite briquettes and a preparation method thereof. Background technique [0002] Coal is transformed from plant remains through complex biochemical and physical chemical processes. During the Paleozoic period more than 200 million years ago, due to crustal movement, trees and other vegetation sank to the bottom of the swamp and were covered by earth and rocks. Under the action of pressure and geothermal heat, it gradually changed into today's coal. Coal is an important energy source and an important raw material for metallurgy and chemical industries; it is mainly used for combustion, coking, gasification, low-temperature dry distillation, hydrogenation liquefaction, etc. [0003] As coal resources are on the verge of depletion and CO in the process of coal combustion 2 Due to the impact of excessive emissions on the global climate, people have n...

Claims

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Application Information

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IPC IPC(8): C10L5/12C10L5/04C10L9/10
Inventor 孙玉奎
Owner BAISHAN YITONG ECONOMY & TRADE CO LTD
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