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Fuel coal additive composition

A technology for coal-fired additives and compositions, applied in the field of coal-fired additive compositions, can solve the problems of easy precipitation during long-term storage, and achieve the effects of good cold resistance, improved combustion rate, and less precipitation

Inactive Publication Date: 2015-02-18
尹勇善
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this additive contains solid solution powder, which is prone to precipitation during long-term storage

Method used

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  • Fuel coal additive composition
  • Fuel coal additive composition
  • Fuel coal additive composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: the manufacture of coal-fired additive composition

[0028] First, 40 g of sodium silicate (40% aqueous solution) and 25 g of sodium hydroxide were stirred with a stirrer to produce a sodium silicate water-soluble solvent.

[0029] 5g of hydrogen peroxide, 10g of borax, 18g of sodium citrate and 2g of glycerin were added to the sodium silicate water-soluble solvent and mixed uniformly to produce a coal combustion additive composition.

experiment example 1

[0030] Experimental Example 1: Reduction Rate of Pollutants

[0031] Dilute 40 times of water in the coal-fired additive manufactured in the ratio of Example 1, and spray the described coal-fired additive dilution liquid that is 100:1 to the ratio of coal on the conveyor belt of the coal conveyor, evenly blending coal and The coal-fired additive composition is then thrown into the combustion furnace.

[0032] The exhaust gas collected during combustion was compared with the exhaust gas before the application of the coal-fired additive composition, and the measured pollutant reduction rate is shown in Table 1.

[0033] Table 1

[0034]

experiment example 2

[0035] Experimental example 2: Reduction of slag

[0036] The coal-fired additive composition produced in Example 1 is sprayed on the conveyor belt of the coal conveyor by an automatic injection device, and the coal and the coal-fired additive composition are evenly mixed in a ratio of 4000:1 and then thrown into the combustion furnace .

[0037] Burn the coal mixed with the coal-burning additive composition for seven days, and observe the results of the state of the slag attached to the furnace wall as follows: Figure 1 to Figure 3 shown.

[0038] figure 1 It is a photo of the slag adhering to the furnace wall before the coal to which the coal-fired additive composition is applied, that is, a photo of the state of the furnace wall narrowed by the slag adhering to the furnace wall.

[0039] figure 2 It is a photo of the furnace wall when the coal of the coal-fired additive composition was burned for 3 days, and part of the slag on the furnace wall was detached and remov...

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Abstract

The invention relates to a fuel coal additive composition which comprises 20 to 75 weight percent of a sodium silicate water soluble solvent, 10 to 40 weight percent of one or the mixture of sodium hydroxide and potassium hydroxide, 0.01 to 7 weight percent of hydrogen peroxide, 1 to 15 weight percent of borax, 1 to 25 parts of one or the mixture of glucose and sodium citrate, and 0.01 to 10 weight percent of glycerol. The fuel coal additive composition has the advantages that the combustion rate of natural fire coal can be improved; environmental pollution is reduced; slag can be removed; the maintenance cost is reduced; the service life of a combustion device is prolonged. Moreover, the fuel coal additive composition is high in cold resistance, and low in possibility of precipitation. In addition, since the fuel coal additive composition can be concentrated for use, the treating and transporting are very simple.

Description

technical field [0001] The invention relates to a coal-fired additive composition used for saving coal, removing slag, preventing clinker formation, improving natural coal combustion efficiency, reducing harmful gas formation and reducing pollutants. Background technique [0002] In order to prevent global warming and reduce air pollutants that damage the global environment, the "Kyoto Protocol" was approved and announced, and the carbon dioxide emission rights will be traded in the future, and the atmospheric environment will be improved through the addition of carbon taxes. In order to reduce costs that increase with environmental reference values, it is necessary to develop technologies for reducing air pollution from natural coal use and improving energy consumption efficiency. [0003] In recent years, as the price of natural gas or oil continues to rise, the utilization rate of coal-fired boilers and various heating furnaces has increased. However, when burning coal w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L9/10
Inventor 尹勇善金炫秀金荣钟
Owner 尹勇善
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