我厂于1977年11月试制成功一台冲量式流量计,对本厂成品磷矿粉进行计量。成品磷矿粉参数:细度～100目92%,～200目70%;含湿<1%;堆比重γ=1.2吨/米~3;重量流量25吨/时。通过半年多时间的连续使用和多次测定,证明性能良好,精度较 I plant in November 1977 trial success of an impulse flow meter, the factory finished phosphate rock powder for measurement. Finished phosphate rock parameters: fineness ~ 100 mesh 92%, ~ 200 mesh 70%; wet <1%; heap proportion γ = 1.2 tons / m ~ 3; weight flow 25 tons / hour. Through more than six months of continuous use and multiple determination, to prove good performance, accuracy