Technical FAQs 4

How is slag extracted from a power station?

The molten and then crystallized slag is washed out of the power station into a slag pond. The wet ash is extracted from the pond and left in the open to loose most of the quenching water. Thereafter the slag is dried in a rotating dryer to dry and de-agglomerate bigger particles before screening in to five different particle sizes.

Why is automated slag removal important?

While manual removal using hand tools is possible, it is time-consuming and labour-intensive. Fortunately, various automated solutions can help remove slag safely and effectively, improving both productivity and final product quality. Below are some of the key reasons why effective slag removal is so important:

What causes slagging & fouling in coal-fired power plants?

Slagging and Fouling. Slagging and fouling is a major operational concern for coal-fired power plants, resulting in reduce power generation, and increased shutdowns and maintenance. Slag is molten ash and incombustible by-products that remain following coal combustion and can stick to furnace components.

How do you stop a furnace from slagging?

Control Deslagging Time: Minimize the time the furnace door is open to reduce thermal radiation loss and thermal shock to the lining. Avoid Excessive Skimming: In some cases, leaving a thin layer of well-conditioned slag at the slag line can actually serve as a protective barrier.

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