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Coal combustion improver and preparation method thereof

A technology of combustion enhancer and coal, which is applied in the field of coal combustion enhancer and its preparation, which can solve the problems of ineffective descaling and descaling of the heating surface of the boiler, incomplete combustion of combustible substances, excessive emission of harmful substances, etc., so as to improve the efficiency of coal combustion , stable properties, and the effect of reducing nitrogen oxide emissions

Inactive Publication Date: 2015-06-03
郭跃辉
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] Existing industrial and civil coal combustion accelerants only focus on the combustion-supporting effect, only from the perspective of oxygen supply, the duration is short, the instantaneous effect is strong, the combustible substances in the coal cannot be fully burned, and the coal-saving effect cannot be achieved. The discharge of harmful substances exceeds the standard; some combustion accelerants overcome the disadvantages of the traditional coal combustion accelerants that release oxygen instantly, and the burning coal can be fully cracked and burned to fully release energy and reduce harmful gas emissions. The effect of descaling and descaling on the surface is not obvious, and there is still a loss of thermal efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A coal combustion enhancer is obtained by dissolving and stirring the following raw materials in parts by mass: 30 parts of nano-active titanium dioxide, 12 parts of ferric chloride, 3 parts of sodium alkylbenzenesulfonate, 6 parts of ethanol, 14 parts of calcium carbonate, 35 parts of deionized water.

Embodiment 2

[0046] A coal combustion enhancer is obtained by dissolving and stirring the following raw materials in parts by mass: 28 parts of nano-active titanium dioxide, 10 parts of ferric chloride, 5 parts of copper sulfate, 5 parts of sodium alkylbenzenesulfonate, 5 parts of ethanol, Calcium carbonate 15 parts, deionized water 32 parts.

[0047] The mechanism of action of the coal combustion enhancer is as follows: when the coal enters the combustion zone, the volatile matter is first burned, and then tar is produced to wrap the coal particles. After the tar is burned, the coal particles are exposed, and the coal particles continue to burn after repeating the above process. The composition of the surfactant can reduce the surface tension of tar within an effective time, so that the pulverized coal particles can be exposed as soon as possible, and the combustion rate can be accelerated. The decline increases sharply. Due to the electronic structure characteristics of titanium dioxide,...

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Abstract

The invention discloses a coal combustion improver which comprises components in percentage by weight as follows: 15%-40% of nano active titanium dioxide, 10%-30% of a promoter, 2%-8% of a surfactant, 4%-10% of a smoke suppressor, 10%-30% of a sulfur-fixing agent and the balance of a solvent. The coal combustion improver can reduce coal consumption effectively and reduce emission of sulfur dioxide and nitrogen oxide, is stable in performance, high in coal saving rate, and simple and convenient to use.

Description

technical field [0001] The invention belongs to the technical field of solid fuel treatment for improving combustion, and in particular relates to a coal combustion aid and a preparation method thereof. Background technique [0002] my country is the world's largest coal producer and consumer, but it has also caused serious environmental pollution problems. In a relatively long period of time, coal will still be in a dominant position in the field of energy utilization in our country. Building a resource-saving and environment-friendly society is a long-term task in our country. Therefore, rational use of coal resources and improvement of coal combustion efficiency not only have high economic benefits, but also have great social significance. [0003] Existing industrial and civil coal combustion accelerants only focus on the combustion-supporting effect, only from the perspective of oxygen supply, the duration is short, the instantaneous effect is strong, the combustible s...

Claims

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Application Information

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IPC IPC(8): C10L9/10
Inventor 郭跃辉
Owner 郭跃辉
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