Variable lead screw is the core part of variable lead screw extruding-desiccation machine.Its design directly influences the working effects and efficiency of variable lead screw extruding-desiccation machine.But besides the above mentioned requirements, the solid-liquid separation for the cow dung requires the screw could bear low temperature and large temperature changes.%变导程螺杆是变导程螺杆挤压脱水机的核心部分,它的设计的好坏直接影响着变导程螺杆挤压脱水机的工作效果和效率.而用于牛粪固液分离的变导程挤压脱水机的螺杆除了在以上的一些要求以外,还要求螺杆能够承受较低的温度以及较大的温度变化.
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