It is primarily fixed in the bushing in the pump (pump tank) and placed in the pump cylinder screw, and with the active engagement of the two driven screw formed.

它主要是由固定在泵体中的衬套(泵缸)以及安插在泵缸中的主动螺杆和与其啮合的两根从动螺杆所组成。

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Double screw pump series products are divided into single suction of two kinds of double screw pump and double suction double screw pump.

双螺杆泵系列产品分为单吸双螺杆泵和双吸双螺杆泵两大类。

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At present, there are two kinds of front coal feeding system - the one is conveyer belt and traditional mechanical screw conveyer, the other is pump-conveying system.

洗煤泥炉前给料系统目前国内主要有两种形式：一种是采用皮带输送和螺旋给料的传统机械方式，一种是泵送系统。

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