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Environment-friendly and coal-saving combustion improver for power station and preparation method thereof

A kind of combustion-supporting agent and environmental protection technology, which is applied to the environmental protection coal-saving combustion-supporting agent for power plants and its preparation, and the field of combustion-supporting agent, can solve the problems of unfavorable mass production, long-term storage, transportation and use, lack of application value and high economic cost, and achieves Improved hydrophilicity, low viscosity and high safety

Active Publication Date: 2018-05-01
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 and coal-saving combustion improver for power station and preparation method thereof
  • Environment-friendly and coal-saving combustion improver for power station and preparation method thereof
  • Environment-friendly and coal-saving combustion improver for power station 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 invention relates to an environment-friendly and coal-saving combustion improver for a power station and a preparation method thereof. The combustion-supporting agent is emulsified slurry preparedby mixing an oxidant, a surfactant, a catalyst and a corrosion inhibitor, wherein oil field drilling waste liquid and / or oil-containing sludge are / is added into the emulsified slurry. According to the environment-friendly and coal-saving combustion improver provided by the invention, the difficult-to-treat oil-containing sludge of an oil field and the drilling waste liquid are used as main raw materials and comprehensive utilization of wastes can be realized. The coal-saving combustion improver provided by the invention can promote uniform dispersion of a dispersion phase and also can be usedfor effectively improving the hydrophilicity of coal, improving the combustion efficiency and reducing the emission of sulfur dioxide and nitrogen oxide; the prepared coal-saving combustion improverhas low viscosity, high flowability and high stability; the coal-saving combustion improver obtained by the invention is an efficient coal-saving additive suitable for an industrial boiler and can beadded into direct combustion of fire coal of various power stations and industrial boilers.

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 Applications(China)
IPC IPC(8): C10L9/10C10L9/12
CPCC10L9/10C10L9/12
Inventor 张晨邓长胜
Owner 邓长胜
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