公开(公告)号：US06045069A

公开(公告)日：2000-04-04

申请号：US34617

申请日：1998-02-27

申请人： William G. Steed

发明人： William G. Steed

IPC分类号： B02C13/09 ,  B02C13/286 ,  B02C13/288 ,  B02C13/08

CPC分类号： B02C13/286 ,  B02C13/09 ,  B02C13/288 ,  B02C2013/2869

摘要： A rotary mill for reduction of ore to particles is described. The rotary mill comprises a primary reduction chamber, a secondary reduction chamber and an outlet chamber. Material entering the primary reduction chamber is deflected by an impact rotor, which shatters the material and sends the resulting particles into a plurality of shatter bars. The shatter bars further reduce these particles and deflect them back towards the rotor so that the reduced particles encounter newly shattered material, causing further attrition. In addition, the rotary mill includes an exhaust fan arranged to generate an airflow from the primary reduction chamber, through the secondary reduction chamber and into the outlet chamber. This airflow carries the reduced particles into the secondary reduction chamber wherein the particles are thrown against reduction means. The reduction means are positioned between the secondary reduction chamber and the outlet chamber such that only particles below a certain size enter the outlet chamber. Material of sufficiently reduced size enters the outlet chamber wherein it is separated into fine particles and heavier particles. Specifically, the heavier particles fall out of the airflow and gather at the base of the outlet chamber until a sufficient weight accumulates to open the balance door which expels the heavy material from the rotary mill.

摘要翻译： 描述了一种用于将矿石还原成颗粒的旋转研磨机。 旋转磨机包括主还原室，二次还原室和出口室。 进入主还原室的材料被冲击转子偏转，冲击转子粉碎材料并将所得颗粒发送到多个碎片条中。 碎石条进一步减少这些颗粒并将其偏转回转子，使得还原的颗粒遇到新破碎的材料，导致进一步的磨损。 此外，旋转磨机包括排气风扇，该排气风扇布置成产生来自主还原室的气流，通过二次还原室并进入出口室。 这种气流将还原的颗粒携带到二次还原室中，其中颗粒被抛出抵抗还原装置。 还原装置位于二次还原室和出口室之间，使得只有低于一定尺寸的颗粒进入出口室。 足够小尺寸的材料进入出口室，其中分离成细颗粒和较重颗粒。 具体来说，较重的颗粒从气流中脱落，并聚集在出口室的底部，直到足够的重量累积以打开平衡门，从而将重质材料从旋转磨中排出。