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High Chrome Brick for Coal Water Slurry Gasifiers
High chrome brick, which is characterized by high corrosion resistance and good high temperature mechanical properties, is mainly used as the working linings of the coal water slurry gasifier, petrol coke pressurized gasifier and other melting devices where acid alkali slag corrosion is serious.
So far, the high chrome brick has been used in the coal water slurry gasifiers in more than 30 plants with excellent performance.The effective life of bricks working on the imported coal water slurry gasifier is about 10000h and the maximal service life reaches 23000h. The bricks were awarded the Second Prize of Science and Technology Progress by Ministry of Chemical Industry and the Second Prize of Henan Provincial Science & Technology Progress in 1999. The annual capacity of the chrome brick is 5000 tons.
Our Customers Commented
A:I think that's a great mindset. Companies are working to understand the impact of raw materials of hex chrome formation to reduce the available soluble chromia available to transform. Also, on the operations side (less my expertise), reducing the propensity for oxidizing during shutdown and startup procedures, at least for for temperatures above 1000C could greatly reduce the formation of that dreaded yellow bloom when the vessel is eventually cracked. Spent refractory handling and special installation considerations for chromia refractory have been a major inhibitor for the use of the material in industries across the world. It's really a tradeoff of performance vs safety at this point and that shouldnt be a question we are forced to ask. Let's hope we can work together to find workarounds and reduce hex chrome formation all together!
B:Great job!
Without a doubt, chrome is the best corrosion resistance material we have in refractory field. But then, "every best has their own set of problems". So, once issues like Cr(VI) are solved, we can have succes stories like yours.
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