A special agitator shaft with symmetrically arranged agitator pegs and sleeves of tungsten carbide for wear protection devel- Vertical, batch operation mill for the preparation of tungsten Ideal flow behaviour due to a special agitator peg arrange-ment and the hemispherically shaped chamber floor integrated screen plate for grinding media separationIntensive cooling through a double-wall grinding tank and cooled circulation pipeline
Product inlet via rotor / immersion tube system prevents back flow of grinding media into the feed line.
Generally, there are two ways to obtain nano-powders. A bottom-up manufacturing method (bottom up) for chemical methods, such as chemical precipitation, sol-gel process (sol-gel),... Another method is physical method, which changes the powder particles from big to small (top down), such as mechanical ball milling,... And so on.
The Development In 1963, the first vertical agitator was developed internationally, the first horizontal agitator was developed in 1975, the first horizontal agitator bead mill with eccentric disks was introduced to the public and the horizontal disc grinder was introduced, in 2004, which became the industry standard. In the following years, the grinding media separation systems, the geometry of the grinding disks and the various grinding chamber materials were further developed.
The grinding system pin nanomill shows the evolutionary develop- ment of system with the rotor-slotted pipe separating system. The enclosed horizontal agitator mill is designed for highest product throughput rates and possesses a pin grinding system for highest grinding intensity.
In 2011, we developed the first zirconia comminution chamber technology in China. It has no metal ion pollution and is used in batteries, pharmaceuticals, glazes, ink and food.
混用大小不同的氧化鋯球,能否提供研磨效率?
答案是否定的,因為大小差異大的氧化鋯球在高速運轉的過程中 , 會產生以下問題:
(1) 由于重量不同 , 大球與小球容易產生分離現象 , 小磨珠容易被推擠到出料口處分離器出 , 造成嚴重研磨腔的局部液壓上升 , 也會因推擠壓力導致球與球之間產生的滾動不順暢之現象。反而降了研磨效率,此現象將造成鋯球的不正常損耗 , 更近一步因鋯球的損耗變形 , 導致轉子加速器銷棒或盤片與內壁的不均勻磨耗。
(2) 大球重量大 , 沖撞力強 , 易導致小球的損壞、破裂與變形。
(3) 大、小球之間的切線間隙不同 , 在研磨過程中 , 根據液體流向定律,漿料的流動會傾向流往壓力較低 , 剪切力較小的大球間隙而逃過被研磨。其結果是反而研磨漿料的粒徑分布變得寬。