Charcoal ball press machines are in great demand because of the wide application, our company has many successful cases of this charcoal ball making machine, shipped machines to many countries, such as Indonesia 和 Romania. However, sometimes customers ask us why the charcoal balls made by the machine are not regular. In order to solve the customer’s question. our engineers gave some factors that could affect the molding effect of charcoal balls.

炭球机的辊速度

In order to improve the productivity of the briquetting machine, some factories set the speed of the two briquetting rollers very fast. But this is not right. Because the raw materials are squeezed by the rollers, the internal air between the loose raw materials will be gradually discharged. When the rollers rotate too fast, the surface of the pellets will be cracked because the gas between the raw materials is too late to be discharged, resulting in the pellets’ cracks. The strength is reduced, and it cannot even be formed into a ball.

辊之间的压力

压球机采用调速装置，可以随时调节球的速度，速度稳定，成型率高，产品颗粒大小均匀。有些工厂希望增加产品的密度和硬度，调节两个压力辊之间的压力较大。但所生产的炭球质量非常差，为什么？

实际上，材料分子之间的压力是有限的。当压力超过这个极限时，材料分子之间会发生滑移，导致材料崩溃。这时会出现大量半球体，球形形成的速度大大降低。会降低颗粒的强度，使压制的球难以成型。

原料的水分

除少数使用干粉压块的石灰石等原料外，大多数材料采用湿压成型。原料的水分含量是影响成型的原因之一。

水分过多：水分的变化会影响绿球的粒径和质量。通常，如果原料的水分含量过高，初期成球速度会更快，但容易导致绿球粘连变形，难以分离，导致绿球粒径分布不均。强度差，干燥困难。

水分过低：如果原料的水分含量过低，两个半球之间的间隙可能会增加，导致粉末的粘结强度变差，半球过多，甚至无法成球。因此，球的水分含量也会影响压球机的成球效果。