使用本实用新型，挡渣器的重复利用率可大大提高，能产生更好的节能和经济效益。
The repeated utilization factor of the slag bridge of the utility model can be greatly improved, and the better energy saving effect and economic benefit can be achieved.
本文根据转炉气动挡渣器回转气缸的工作环境特点，对其气缸活塞的密封进行了改进设计。
In the paper, a cast iron seal used in high temperature pneumatic cylinder is introduced. Its operating principle and design method is described.
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