浒苔螺旋压缩固液分离的研究

Study on Enteromorpha Prolifera Spiral Compression Solid-Liquid Separation

针对浒苔脱水工作效率低及工人劳动强度大等问题,设计出一种浒苔螺旋压缩机,实现浒苔固液分离过程的自动化。介绍了其结构组成、系统特性、工作原理并提出研究方法,利用有限元分析软件对单螺杆仿真分析,通过浒苔脱水实验进行补充验证。研究结果表明:浒苔压缩脱水之后体积减小2/5,有效节省了鲜浒苔的占用空间,利于快速装袋处理;进行螺旋单螺杆模态分析,取前6阶位移云图比对分析,单螺杆的变形稳定;取10阶振频分析,螺杆的振动频率都在低频级5.1Hz附近,激励频率小且相对稳定,不会产生共振现象;压缩机压力场仿真分析中,在20~150N的出口阻力下其正常工作所产生的轴向压力在640N上下波动,转矩值在14~15N·m;浒苔在压缩机脱水过程中不打滑或堵塞的情况下,出口阻力越大浒苔脱水效果越好,而速度只是加大了脱水速率。浒苔螺旋压缩机固液分离技术的研究为浒苔打捞脱水处理装置的开发研究提供一定的参考。

Aiming at the problem of Enteromorpha dehydration and low working efficiency high labor intensity,designing a kind of screw compressor to realize the automation of Enteromorpha prolifera,solid-liquid separation process.Introducing the structure and working principle of the system characteristics,and puts forward the research method,analysis of single screw simulation using simulation software,verified by prototype of Enteromorpha with doing dehydration experiment.The results show that the compression volume decreased 2/5 dehydration of Enteromorpha,effectively saving the occupied space of fresh Enteromorpha,conducive to the rapid bagging treatment;Analysis of single screw spiral mode,taking the first 6 order displacement of two cloud analysis,deformation and stability of single screw;the 10 section analysis of vibration frequency,the vibration frequency of the screw are in the vicinity of low level 5.1 Hz,the excitation frequency is small and relatively stable,will not produce resonance phenomenon;Analysis of compressor pressure field simulation,the axial pressure generated by the normal work of export under the weight of 20~150 N is about 640 N,the torque value is about 14~15 N·m;Helical compression experiments in the allowable range,the greater the better export resistance Enteromorpha dehydration effect,and the velocity is only increasing the dehydration rate.Study on the solid-liquid separation technology of Enteromorpha screw compressor dehydration treatment provide a reference for the research and development of Enteromorpha salvage device.