在细磨中,流体动力磨占有重要地位。流体动力磨也称喷射磨。在老式的螺旅喷射磨基础上,近年来又发展了靶式喷射磨,对撞式喷射磨和流化床喷射磨。对撞式喷射磨运用了两相流技术,将气体和待磨粒子在喷管中加速,并以极高的速度在一狭小的空间内使粒子对撞而被磨细,其粉碎效率极高,耗能可比一般(?)射磨降低70％。流化床喷射磨给合了喷射磨和同时将喷射气流在一流化 In fine grinding, hydrodynamic grinding occupies an important position. Fluid power mill is also called jet mill. On the basis of the old Spitzer jet mill, the target jet mill, the collider jet mill and the fluidized bed jet mill have also been developed in recent years. Collision jet mill uses two-phase flow technology, the gas and the particles to be abrasive in the nozzle to accelerate, and at a very high speed in a small space so that particles collide and be ground, the crushing efficiency is high , Energy consumption than the average (?) Shoot reduced by 70%. The fluidized bed jet mill combines the jet mill with the jet stream at the same time in a fluidized bed