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

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...

Examples

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%);

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...

Examples

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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