subject: Discharging Mode And Classification Of Ball Mill [print this page] Ball mill is the key equipment for grinding after the crushing process, which is widely used in the manufacture industries, such as cement, silicate, new building material, refractory material, fertilizer, ferrous metal, non-ferrous metal and glass ceramics and can be used for the dry and wet grinding for all kinds of ores and other grind-able materials.
Working principle of Ball Mill:
This machine is a skeleton pattern ball mill with horizontal cylindrical turning gear, drive by outer gear and two hoppers. The material goes to the first hopper after the spiraling by the quill shaft from the feeding equipment. The hopper has ladder sheathing or corrugated sheathing with steel balls inside, which will fall under the effect of centrifugal force by barrel turning to ram hard and grind material. After the kibbling in the first hopper, by monolayer partition panel, the material will enter the second hopper, which has plane scale board with steel ball inside to grind material. The powder material will be discharged from the grid plate to finish the grinding.
According to different ways of classification, the use of ball mill can be divided into many situations. In the following situation, on the basis of certain classification, it is easy to distinguish the ball mill in each industry.
As inclined discharging type of ball mill:
1. Inclined tail type of ball mill:
The material that will put into grinding machine was fended from one end, discharging from the other end, like this, we call it inclined tail ball mill.
2.Middle discharge type of ball mill:
The material that will put into grinding machine was fended from both ends, discharging from middle part of cylinder of ball mill.
This type of ball mill amounts to using two ball mills together, thus to make the ball mill compact and the process simple.
As the discharging way of inclined tail type of ball mill, there are grate ball mill, overflow ball mill, peripheral discharging, Wind discharges, etc.
As the transmission way of ball mill:
Centre drive of ball mill: the ball mill was drove by electromotor, the electromotor by reduction gear to drive the hollow shaft of grinding machine.
Marginal drive of ball mill: the cylinder of ball bill was drove by electromotor; the electromotor drives the gearwheel that fixed on cylinder.
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