Based on the analysis of pulping movement of material in bivis extruder , a study on the designing theory of positive directional screw in bivis extruder had been carried out , the relationship between flow capacity and basic parameters of positive directional screw in bivis extruder was established , the designing method of negative directional screw was discussed , and a basic designing train of thought of the extruder was put forward 摘要在分析双螺杆磨浆机中物料磨浆运动的基础上，对双螺杆磨浆机的正向螺旋的设计理论进行了研究，建立了流量与双螺杆机构正向螺旋的基本参数之间的关系，讨论了反向螺旋的设计方法，提出了双螺杆磨浆机设计的基本思路。
Hebei iron lion milling machinery co . , ltd shall walk along with all the old and new friends , make use of the technicals and equipment to better the quality , initiate the spirits of " hr is the basis , be honest to do things " , improve the quality of the employees , establish the perfect aftermarket service system , create brighter future with you together 河北铁狮磨浆机械有限公司必将与新老朋友携手共进，利用自身技术和设备优势，不断提高产品质量，倡导以人为本、诚信务实的企业精神，不断提高全员素质，建立更加完善的售后服务体系，愿与您一道共同开创更加辉煌的未来
