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Environment-friendly coal-saving combustion-supporting agent for power plants and preparation method thereof

A combustion-supporting, environmentally friendly technology, applied in the field of environmentally friendly coal-saving combustion-supporting agents for power plants and its preparation, and in the field of combustion-supporting agents, can solve problems such as unfavorable mass production, long-term storage, transportation and use, lack of application value, and high economic costs, and achieve Improved hydrophilicity, low viscosity, and high safety effects

Active Publication Date: 2021-09-10
邓长胜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, according to the content disclosed in the prior art, it is common to add strong oxidants to coal-fired additives at present, which is very unfavorable for mass production, long-term storage, transportation and use, and there are major safety problems, and the economic cost is high, and there is no practical solution. Value

Method used

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  • Environment-friendly coal-saving combustion-supporting agent for power plants and preparation method thereof
  • Environment-friendly coal-saving combustion-supporting agent for power plants and preparation method thereof
  • Environment-friendly coal-saving combustion-supporting agent for power plants and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] An environment-friendly coal-saving combustion aid for power plants, consisting of 17.5% of oil field drilling waste fluid, 17.5% of oily sludge, 45% of sugar, 6% of ferric oxide, 6% of manganese dioxide, 5% of ammonium bicarbonate, and 3% of imidazoline % mixed preparation.

[0031] The preparation process of the coal-saving combustion-supporting agent is as follows:

[0032] ①According to the formula ratio, mix water at 60°C with high-speed grinding of ferric oxide, manganese dioxide, and ammonium bicarbonate that have been ground through a 200-mesh sieve at a ratio of 4:1, and let stand for 20 minutes;

[0033] ②Then high-speed grinding and mixing of sugar, drilling waste fluid, oily sludge and imidazoline in order to form an emulsion;

[0034] ③According to the coal grade, the coal-saving combustion accelerant is mixed into the coal at a mass ratio of 0.2% to 7%.

[0035] The process analysis of coal samples is shown in Table 1.

[0036] Table 1 Industrial analys...

Embodiment 2

[0041] As another solution of the present invention, instead of adding sugar, starch is used to improve the emulsification effect of the coal-saving combustion aid and reduce the cost of the coal-saving combustion aid. Other parts are the same as in Example 1, and the effects are shown in Table 3.

[0042] Table 3 Effect of adding 1% environmentally friendly coal-saving combustion accelerant

[0043]

Embodiment 3

[0045] As another scheme of the present invention, the emission of nitrogen oxides can be reduced, which consists of 15% of oil field drilling waste fluid, 10% of oily sludge, 50% of sugar, 8% of ferric oxide, 7% of manganese dioxide, carbonic acid 10% ammonium hydrogen and 2% imidazoline are mixed and prepared. The preparation method is the same as in Example 1, and the effects are shown in Table 4.

[0046] Table 4 Effect of adding 1% environmentally friendly coal-saving combustion accelerant

[0047]

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Abstract

The present invention relates to an environment-friendly, coal-saving combustion-supporting agent for power plants and a preparation method thereof. The combustion-supporting agent is an emulsified slurry prepared by mixing an oxidant, a surface modifier, a catalyst and a corrosion inhibitor, and oilfield drilling waste liquid is added to the emulsified slurry and / or oily sludge. The environmental-friendly, coal-saving and combustion-accelerating agent of the present invention uses difficult-to-treat oilfield oily sludge and drilling waste fluid as main raw materials, and can realize comprehensive utilization of waste. This coal-saving combustion aid can not only promote the uniform dispersion of the dispersed phase, but also effectively improve the hydrophilicity of coal, improve combustion efficiency, and reduce the emission of sulfur dioxide and nitrogen oxides; the prepared coal-saving combustion aid has low viscosity and high fluidity and high stability; the coal-saving combustion aid obtained in the present invention is a high-efficiency coal-saving additive suitable for industrial boilers, and can be added to various power plants and industrial boilers for direct combustion of coal.

Description

technical field [0001] The invention belongs to the field of industrial coal combustion, and relates to a combustion aid, in particular to an environment-friendly coal-saving combustion aid for power plants and a preparation method thereof. Background technique [0002] Energy is the driving force for human survival and development. Among them, coal accounts for about 94% of the total proven fossil energy in my country. Even though many new energy sources have appeared with the development and transformation of science and technology, environmental protection and economy, according to forecasts, even by 2050, the proportion of coal in my country's primary energy structure will remain at about 50%. Coal is still the dominant energy in human production and life. [0003] The problem is that about 70% of my country's coal production is used for combustion to generate electricity, and the efficiency of energy generation is only about 40%, and it produces serious air pollution....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L9/10C10L9/12
CPCC10L9/10C10L9/12
Inventor 张晨邓长胜
Owner 邓长胜
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