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A composite briquette binder

A technology of composite briquette and binder, which is used in solid fuel, waste fuel, petroleum industry, etc., can solve the problems of poor structural stability, low carbon content, and high ash content of briquette, and achieve improved molding stability and carbon content. The effect of high volume and surface tension reduction

Active Publication Date: 2021-04-23
曲阳县建硕型煤有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention: Aiming at the problems of high ash content, low carbon content and poor structural stability in the briquettes prepared by the commonly used briquette binders at present, a composite briquette binder is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0037] The preparation method of briquette binding material A comprises the steps:

[0038](1) In parts by mass, take 7-13 parts of lithium-based grease, 2-5 parts of sodium-based bentonite, 1-3 parts of auxiliary materials, 3-7 parts of sodium aluminosilicate, 1-4 parts of dispersant, 4 ~8 parts of hydrogen-containing silicone oil, 30-50 parts of ethanol solution with a volume fraction of 70%, firstly take hydrogen-containing silicone oil, lithium-based grease, and auxiliary materials and mix them in a reactor, stir magnetically at 400-700r / min for 30-55min, add sodium Mix base bentonite, sodium aluminosilicate, dispersant, and ethanol solution, and shear and disperse at 2000~4000r / min for 15~25min to obtain a dispersion. At 28~36°C, add trimethyl Mix and stir the chlorosilane for 1~3h, filter with suction, collect the filter residue, wash it with water for 2~4 times, move it to a 65~80℃ oven and dry it for 1~3h to obtain the base material;

[0039] (2) Under a nitrogen atmo...

Embodiment 1

[0043] Dispersant: Mix sodium dodecylbenzenesulfonate and fatty alcohol polyoxyethylene ether at a mass ratio of 2:1 to obtain a dispersant.

[0044] Catalyst: Mix chloroplatinic acid and ferrocene at a mass ratio of 1:1 to obtain a catalyst.

[0045] Additive: Mix linseed oil and hydroxyapatite at a mass ratio of 1:3 to obtain the additive.

[0046] Auxiliary material: Mix polyacrylamide and hydroxyethyl cellulose at a mass ratio of 2:1 to obtain an auxiliary material.

[0047] Modifier: Mix β-cyclodextrin, microcrystalline paraffin, and lecithin at a mass ratio of 5:1:1 to obtain a modifier.

[0048] Pretreatment lignite: take lignite and crush it through a 60-mesh sieve, wash the sieved material twice with a sodium bicarbonate solution with a mass fraction of 15%, and dry it to obtain a dry product. Take the dry product and add it in a mass ratio of 7:5:1 Mix itaconic acid and acrylamide evenly, evaporate under reduced pressure to constant weight, and obtain pretreated li...

Embodiment 2

[0056] Dispersant: Mix sodium dodecylbenzenesulfonate and fatty alcohol polyoxyethylene ether at a mass ratio of 5:1 to obtain a dispersant.

[0057] Catalyst: Mix chloroplatinic acid and ferrocene in a mass ratio of 1:3 to obtain a catalyst.

[0058] Additive: Mix linseed oil and hydroxyapatite at a mass ratio of 1:6 to obtain the additive.

[0059] Auxiliary materials: Mix polyacrylamide and hydroxyethyl cellulose at a mass ratio of 5:1 to obtain auxiliary materials.

[0060] Modifier: Mix β-cyclodextrin, microcrystalline paraffin, and lecithin at a mass ratio of 8:1:2 to obtain a modifier.

[0061] Pretreatment lignite: take lignite and crush it through a 60-mesh sieve, take the sieved material and wash it with 15% sodium bicarbonate solution for 4 times, then dry it to obtain a dry product, take the dry product and add it according to the mass ratio of 13:5:1 Mix itaconic acid and acrylamide evenly, evaporate under reduced pressure to constant weight, and obtain pretreat...

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Abstract

The invention discloses a composite shaped coal binder, which belongs to the field of shaped coal. The present invention uses lithium-based grease, sodium-based bentonite, sodium aluminosilicate, etc. as raw materials to prepare briquette binder A, wherein lithium-based grease has good anti-fretting wear performance, and the added hydrogen-containing silicone oil may also provide hydrophobic At the same time, it can help improve the bonding stability of the blend, improve the binding effect on coal powder particles, and stably improve the thermal efficiency and molding effect of briquettes; fish skin, rice straw, Lactobacillus bulgaricus, etc. Co-fermentation uses microbial metabolism to destroy fish skin and straw tissue to obtain colloids and sugars, while ensuring cohesiveness and increasing carbon content. The invention solves the problems of high ash content, low carbon content and poor structural stability in the briquette prepared by the conventional briquette binder.

Description

technical field [0001] The invention belongs to the field of preparation of molded coal, and in particular relates to a composite molded coal binder. Background technique [0002] Coal is the most abundant energy resource, which is cheap, easy to obtain and widely used. With the improvement of environmental protection requirements in recent years, especially higher requirements are put forward for the amount of dust and sulfur-containing compounds produced by coal combustion. In large coal-consuming enterprises such as thermal power plants, the emission of dust and sulfur compounds can usually be reduced through a dedicated dust removal and purification system. These measures are difficult to implement in small-scale coal use sites such as barbecue coal. Therefore, the coal fuel itself needs to be treated. Among them, the pulverized coal can be processed through bonding and molding, which can effectively reduce the escape of dust and improve the utilization rate of pulver...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L5/10
CPCC10L5/105Y02E50/30
Inventor 曾坤宁
Owner 曲阳县建硕型煤有限公司
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