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.
目前國內砂磨機技術主要是改革開放對材料細度和粒度分布要求,由國外引入,逐步國產化的一個過程,砂磨工藝通過氧化鋯球等對材料的研磨粉碎可以大大提高產品物理性能和化學性能。
從地域分:主要有德系砂磨機、瑞士砂磨機、日韓砂磨機等。
從研磨腔安裝方式分:立式砂磨機和臥式砂磨機。立式砂磨機主要是砂磨機研磨腔為垂直方向,優點是可以大大延長軸封的使用壽命,缺點是限制了研磨腔容積的放大能力。臥式砂磨機主要是研磨腔安裝為水平方向,其優點是研磨腔容積可以放大到3000L,可以滿足大型礦物質和電池材料大產能的研磨。
從結構上分:盤式砂磨機、棒銷式砂磨機、渦輪式砂磨機及衍生產品。盤式砂磨機大多數是追求大產能;棒銷式砂磨機主要體現在效率和細度優勢上。
從分離系統分:有網篩砂磨機、無網篩砂磨機;有網篩砂磨機主要在分離端有個分離網;無網篩砂磨機是在分離端有一個離心分級盤,一般臥式砂磨機還需要裝一臺電機和一套機械密封,立式砂磨機則不需要,主要缺點是適用漿料有一定要求,考慮漿料比重、粘度、泵的選擇、泵速都有較高的要求,否則容易漏珠。
從砂磨機研磨腔材料分:金屬硬質合金鋼研磨腔、聚氨酯研磨腔、陶瓷研磨腔;陶瓷研磨腔又分為碳化硅陶瓷、氮化硅陶瓷和氧化鋯陶瓷,材質不同和制造工藝不同,使用壽命也區別很大。
未來中國砂磨機主要向細度小、粒度分布窄、智能化、能耗低的方向發展。