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Additive for improving Zhundong coal combustion and coking characteristics and use method thereof

An application method and additive technology, applied in the direction of fuel, solid fuel, petroleum industry, etc., can solve the problems that cannot meet the needs of thermal power units, achieve the effects of convenient storage and application, increase the proportion of blended combustion, and simple preparation process

Inactive Publication Date: 2014-11-26
浙江百能科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, due to Xinjiang power transmission work and the transfer of energy-consuming industries to the east, a large number of thermal power units are under construction or planned to be built in Xinjiang. The existing high-quality coal (bituminous coal that does not coke in boilers) can no longer meet the needs of thermal power units. The coking characteristics of eastern coal and the method of increasing the utilization ratio of Zhundong coal to meet the needs of Xinjiang power grid expansion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The composition of Zhundong coal additives and the mass percentage of each composition are shown in the following table:

[0021] Element

[0022] Except for the waterproof binder, the average particle size of the other ingredients in Zhundong coal additives is 8um. The mixing mass ratio of Zhundong coal and additives is 1:0.005, which can increase the melting point of coal ash by about 90°C.

Embodiment 2

[0024] The composition of Zhundong coal additives and the mass percentage of each composition are shown in the following table:

[0025] Element

[0026] Except for the waterproof binder, the average particle size of the other ingredients in Zhundong coal additives is 11um. The mixing mass ratio of Zhundong coal and additives is 1:0.004, which can increase the melting point of coal ash by about 60°C.

Embodiment 3

[0028] The composition of Zhundong coal additives and the mass percentage of each composition are shown in the following table:

[0029] Element

[0030] Except for the waterproof binder, the average particle size of the other ingredients in Zhundong coal additives is 12um. The mixing mass ratio of Zhundong coal and additives is 1:0.003, which can increase the melting point of coal ash by about 40°C.

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Abstract

The invention relates to a Zhundong coal additive and provides an additive for improving Zhundong coal combustion and coking characteristics and a use method thereof. The additive comprises, by mass, 20-36% of SiO2, 8-18% of Al2O3, 12-28% of MnO2, 6-23% of Fe2O3, 4-10% of KMnO4, 5-15% of Fe(NO3)3, 1-5% of TiO2 and 2-4% of a waterproof adhesive. The additive of Zhundong coal can be prepared by simple processes, has a low cost, can be transported, stored and used conveniently, can well improve Zhundong coal combustion, coking, slag-bonding and dust deposition characteristics, can effectively improve a blending combustion ratio of Zhundong coal, and has no side effect on fire coal equipment, no damage on the human body and no pollution on the environment.

Description

technical field [0001] The invention relates to an additive for Zhundong coal, in particular to an additive and an application method for improving the combustion and coking characteristics of Zhundong coal. Background technique [0002] There are 390 billion tons of coal resources in the Zhundong region of Xinjiang. Based on the current annual coal production in my country, one Zhundong coal field is enough for the whole country to use for a hundred years. With the advancement of the construction of Xinjiang power transmission project, the Zhundong area will become one of the bases for Xinjiang power transmission. The use of coal in Zhundong area is of great significance to the national energy strategy. [0003] The Zhundong coalfield is a marine sedimentary coalfield, and the primary minerals in the coal contain a large amount of alkali metals such as Na, K, and Ca, which are much higher than the existing known alkali metal content in power coal. After practice, a series...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L9/10
Inventor 周俊虎周志军张彦威杨雪峰刘茂省孙振龙杨丽景雪辉刘建忠岑可法
Owner 浙江百能科技有限公司
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