Active lime pit is advanced in structure as it adopts reliable both-ends combined type scale sealing, making the air leakage factor below 10%.

活性石灰窑结构先进，采用可靠的回转窑两端组合式鳞片密封，使漏风系数小于10%；

youdao

5 maintenance is convenient, pneumatic ball valve structure is simple, the sealing ring is generally active, demolition and replacement are more convenient.

维修方便，气动球阀结构简单，密封圈一般都是活动的，拆卸更换都比较方便。

youdao