我厂生产普通过磷酸钙用的磷矿粉,颗粒小(细度为通过100目筛90％以上),温度高(60℃左右),流动性大(几乎象流体),容易污染环境,不适宜用皮带电子秤称量。为了解决磷矿粉的连续称量问题,我们根据皮带电子秤的工作原理,试制了一台螺旋电子秤。几年来的生产实践表明,这台螺旋电子秤对于连续测定风扫磨磷矿粉的产量和对粉状物料进行密闭式连续称量,是有实用意义的。这台秤的精度,在四分之三量程(设计量程)范围内 I plant the production of ordinary superphosphate phosphate rock, small particles (fineness of more than 90% through 100 mesh sieve), high temperature (about 60 ℃), mobility (almost like fluid), easy to pollute the environment, not Suitable for weighing electronic weighing belt. In order to solve the continuous weighing of phosphate rock powder, we based on the working principle of the belt scale, trial production of a spiral scale. Years of production practice shows that this spiral electronic scale for continuous determination of wind swept the production of phosphate rock powder and powder material for closed continuous weighing is of practical significance. The accuracy of this scale, in the range of three-fourths range (design range)