In coal gasification systems, valves are crucial components that connect various pieces of equipment. Their primary function is to control the direction and flow rate of the medium, ensuring the normal operation of the system. However, due to the harsh conditions of coal-to-oil, oil-to-coal, and coal gasification processes, which involve high hardness, high pressure, and high temperatures, the media in these systems often contain large amounts of solid particles and corrosive substances. This results in severe wear and corrosion of the valves, posing significant risks to the safe and stable operation of the system.
Therefore, valves used in coal gasification systems must possess features such as wear resistance, erosion resistance, anti-scaling, anti-fouling, and rapid shutoff capabilities. These valves require high sealing performance, large diameters (generally DN300-DN600), and need to open and close quickly and frequently (once every 30 minutes, 5-10 seconds per operation).
In practical applications, Sun Yeh ceramic-lined control valves have demonstrated excellent performance in various scenarios, such as handling water-coal slurry, coal tar slurry, scrubber towers, fly ash, pulverized coal, slag water, black water, slag water recycling pumps, low-pressure ash water, syngas, catalysts, and level adjustment in vacuum flash tanks. These valves not only operate stably over long periods under high temperatures and strong corrosive environments but also achieve rapid opening and closing, meeting the diverse requirements of coal gasification systems. Additionally, because they use special ceramic materials as linings, these valves have a longer service life, significantly reducing the operational costs of the system.
In summary, Sun Yeh ceramic-lined control valves exhibit outstanding wear resistance, corrosion resistance, and rapid shutoff capabilities in coal gasification systems. They are well-suited to the complex conditions of coal gasification systems, addressing the issues of wear and corrosion resistance that traditional valves face under harsh conditions, and providing substantial technical support for the stable and efficient operation of the system.
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