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An additive for effectively inhibiting Zhundong coal slagging and pollution and its application method

An application method and additive technology, applied in fuel additives, solid fuels, petroleum industry, etc., can solve the problems of cumbersome steps and small particle size, and achieve the effects of simple composition, inhibition of volatilization, and easy acquisition.

Inactive Publication Date: 2019-11-22
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned additives contain many types of minerals or components, and at the same time, the particle size is small, so they are only suitable for use in pulverized coal furnaces, and the steps are relatively cumbersome to prepare and use in a certain proportion

Method used

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  • An additive for effectively inhibiting Zhundong coal slagging and pollution and its application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Composition and mass percent content of the Zhundong coal additive that this example implements: kaolin (50%), quartz sand (25%), magnesite (15%) and zeolite (10%);

Embodiment 2

[0021] Composition and mass percent content of the Zhundong coal additive that this example implements: kaolin (55%), quartz sand (20%), magnesite (15%) and zeolite (10%);

Embodiment 3

[0023] The composition and mass percentage content of the Zhundong coal additive that this example implements: kaolin (60%), quartz sand (20%), magnesite (10%) and zeolite (10%);

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Abstract

The invention discloses an additive capable of effectively restraining Zhundong coal slagging and fouling and an application method thereof. The additive is prepared from the following components in percentage by mass: 45 to 75 percent of kaolin, 10 to 25 percent of quartz sand, 10 to 20 percent of magnesite, and 0 to 10 percent of zeolite. The method for applying the additive to Zhundong coal combustion comprises the following specific steps: uniformly mixing the additive and Zhundong coal in advance; then performing combustion. The additive has the advantages of relatively simple components, adoption of readily-available natural minerals, low cost, simple preparation process, and no side effect on the running and environment of boiler equipment, and is safe and reliable.

Description

Technical field: [0001] The invention relates to an additive and an application method thereof, in particular to an additive capable of effectively inhibiting slagging pollution caused by Zhundong high-sodium coal combustion and an application method thereof. Background technique: [0002] Coal plays a pivotal role in China's energy consumption, especially in power generation. At present, many coal bases in the central or eastern regions, after years of mining and utilization, have shown a trend of exhaustion of coal resources. Therefore, the discovery of the Zhundong coalfield in Xinjiang is very important to my country's energy security because of its very rich reserves (forecast: 390 billion tons). Although Zhundong coal is a good thermal coal with low ash and sulfur content and high volatile matter content, serious ash accumulation and pollution problems have occurred during the combustion and utilization of boilers, which affects the economical and safe operation of bo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L9/10C10L10/04
CPCC10L9/10C10L10/04C10L2230/08
Inventor 程乐鸣王勤辉刘炎泉方梦祥肖刚余春江王涛郑成航王树荣周劲松高翔骆仲泱倪明江岑可法
Owner ZHEJIANG UNIV
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