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Grinding burning-rate accelerator for coal, preparation method and application thereof

A combustion-supporting agent and coal technology, which is applied in the field of coal grinding-assisting combustion-supporting agent and its preparation and application, can solve the problems of no use value, ineffectiveness, economical inefficiency, etc., achieves strong diffusivity and penetration, and improves quality , The effect of reducing the fineness of pulverized coal

Inactive Publication Date: 2008-09-24
BEIJING GUOCHENG HUANWANG ELECTROMECHANICAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

All in all, it is considered to have no use value, and it can only be tested in factories using pulverized coal, but it cannot be used in practice.
Finally, in the pulverized coal industry (for example, thermal power plant boilers above 50,000KW-100,000KW), if a combustion aid is added, a lot of power will be consumed during crushing, so there is no economic benefit

Method used

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  • Grinding burning-rate accelerator for coal, preparation method and application thereof
  • Grinding burning-rate accelerator for coal, preparation method and application thereof
  • Grinding burning-rate accelerator for coal, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A coal grinding and combustion accelerant is prepared from the following raw materials: 45 kg of combustion oil, 23 kg of soybean oil, 20 kg of emulsifier, and 15 kg of hydrophilic surfactant.

[0047] Its preparation steps are as follows:

[0048] ①Manufacture of emulsifier

[0049] The weight ratio of each component of the emulsifier is: 17 kg of paraffin, 1 kg of naphthol, 1 kg of stearic acid, 1 kg of polyvinyl alcohol, 3 kg of dipropylamine, 0.5 kg of sodium dodecylbenzenesulfonate, sulfonated humic acid 3 kilograms of sodium bicarbonate, 2 kilograms of alkanolamine, 60 kilograms of water;

[0050] First add the above-mentioned other components except naphthol into the water, heat up to 100°C, stir, and keep for 1-2 hours to completely dissolve the solute, then add naphthol; continue stirring until the naphthol dissolves to obtain an emulsifier solution;

[0051] ② Preparation of hydrophilic surfactant

[0052] Mix 1 kg of lipophilic vegetable oil and 1 kg of n-...

Embodiment 2

[0057] A coal grinding and combustion accelerant, the preparation steps of which are as follows:

[0058] A coal grinding and combustion accelerant is prepared from the following raw materials: 50 kg of machine oil, 20 kg of pine charcoal oil, 18 kg of emulsifier, and 12 kg of hydrophilic surfactant.

[0059] ①Manufacture of emulsifier

[0060] The weight ratio of each component of the emulsifier is: 19 kg of paraffin, 2 kg of naphthol, 3 kg of stearic acid, 2 kg of polyvinyl alcohol, 4 kg of dipropylamine, 1 kg of sodium dodecylbenzenesulfonate, sulfonated humic acid 5 kilograms of sodium bicarbonate, 5 kilograms of alkanolamine, 59 kilograms of water;

[0061] First add the above-mentioned other components except naphthol into the water, heat up to 100°C, stir, and keep for 1-2 hours to completely dissolve the solute, then add naphthol; continue stirring until the naphthol dissolves to obtain an emulsifier solution;

[0062] ② Preparation of hydrophilic surfactant

[0063...

Embodiment 3

[0067] A coal grinding and combustion accelerant, the preparation steps of which are as follows:

[0068] A coal grinding and combustion accelerant is prepared from the following raw materials: 55 kg of lubricating oil, 23 kg of palm oil, 20 kg of emulsifier, and 14 kg of hydrophilic surfactant.

[0069] ①Manufacture of emulsifier

[0070] The weight ratio of each component of the emulsifier is: 23 kg of paraffin, 4 kg of naphthol, 5 kg of stearic acid, 3 kg of polyvinyl alcohol, 6 kg of dipropylamine, 1.5 kg of sodium dodecylbenzenesulfonate, sulfonated humic acid 7 kilograms of sodium bicarbonate, 6 kilograms of alkanolamine, 60 kilograms of water;

[0071] First add the above-mentioned other components except naphthol into the water, heat up to 100°C, stir, and keep for 1-2 hours to completely dissolve the solute, then add naphthol; continue stirring until the naphthol dissolves to obtain an emulsifier solution;

[0072] ② Preparation of hydrophilic surfactant

[0073] M...

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Abstract

The invention relates to a coal mill-supporting combustion improver, and a preparation method and application thereof. The coal mill-supporting combustion improver is prepared with the following materials by weight: 45 to 55 portions of nonpolar lipophilic mineral oil, 19 to 23 portions of lipophilic vegetable oil, 16 to 20 portions of emulsifying agent, and 9 to 14 portions of hydrophilic surfactant. The coal mill-supporting combustion improver has strong diffusibility and permeability. The hydrophilic surfacant in the coal mill-supporting combustion improver is a nonpolar surfactant, and has weak dispersibility over lipophilic mixture. Accordingly, with the help of the emulsifying agent, the property of lipophilic substance is reduced, and the quality of combustion is improved.

Description

technical field [0001] The invention relates to a water-in-oil type coal grinding and combustion aid used in coal pulverization and combustion catalysis, as well as its preparation method and application. Background technique [0002] The world's coal resources are limited, and the storage capacity is decreasing, but the society's demand for coal is increasing, and the price of coal is also rising. This reality requires saving coal on the one hand, and requiring low-quality coal to replace high-quality coal on the other hand. [0003] The basic way to solve these problems is; firstly, to reduce the fineness of coal powder; secondly, to promote the combustion of coal powder, thus improving the utilization efficiency of coal. [0004] In order to solve the first problem, many researchers have been trying various methods in recent years, such as: transforming coal pulverization system, combustion system or introducing some new coal pulverization equipment and combustion equipm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L9/10B02C23/00B02C17/00
Inventor 卢英进
Owner BEIJING GUOCHENG HUANWANG ELECTROMECHANICAL EQUIP
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