The impact mill has been specially designed for breaking up agglomerated material within the bulk product. This application is mainly used in the treatment of boiler ash originating from incineration plants. The adjustable impactor reduces the bulk material’s size to a degree of granulation suitable for pneumatic conveyance. This is indispensable in order to ensure a high level of functional safety in pneumatic conveyance, even for critical bulk products.

The bulk material is fed into the rotor by means of a slide. The impactor is composed of two static, adjustable baffle plates. The beaters at the rotor project the bulk material against the baffle plates. This operation is repeated until the bulk material’s grain size is smaller than the distance between the beaters and the baffle plates. The use of an impact mill allows to modify the whole range of grain sizes.