What Determines Efficiency in Horizontal vs. Vertical Ball Mills?

Ball mill As an intermediate and fine grinding machine, that can grinding materials into fine powder, and usually is combined with other crushing equipment( impact crusher) in the mineral processing industry. Horizontal and vertical ball mills are two common types. But what factors make one more effective than the other? Lets sum up the grinding balls diameter determined by the bond formula has a recommendatory character and serves as a starting point for calculating the necessary proportion grinding media feeding a new mill.

Influence of Ball Size Distribution on Grinding Effect in Horizontal Planetary Ball Mill Article in Advanced Powder Technology 

May 2013 with 507 Reads How we measure 'reads' (Milburn 1979) 4 Conclusions Based on this study, the wet horizontal ball mill process had the ability to produce a high quality aluminum flake powder from aluminum foil waste with it, the paste of aluminum flake.

One key factor which influences the milling process is the distribution of the grinding media within the mill. 

But in case of ribbon Blenders and 3 roll mills, the buckets are attached to these roll mills.a sifter is provided in the drumlifter bucket where the powder or any other product is taken. By contrast, the dispersive quality of the grinding medium in the vertical mills can be more irregular, making grinding less effective.

Impact of RTD, type of laboratory test, and grinding method on comparison of energy requirements for clinker grinding were also considered.

The efficiency of the grinding of the materials in ball mills is inherent. 

Horizontal ball mills have dominated as the equipment of choice for limestone grinding functions within iron ore ball mills. However, vartical ball mills may have lower efficiency due to the imbalance of the media distribution and the higher internals friction.

The relationship between the efficiency of ball mill grind size and particle size distribution of ground products.

The particle size distribution (psd) of the sample can influence the ball milling- time and grinding energy. It is found that the flat particles are less in both vertical and horizontal ball mills as compared to the more equiaxed, very fine nature of the feed material for the slot-broaching apparatus. However, in vertical ball mill systems, the particle size selected from the mill's feed will generally not be the same in the feed to the subsequent grinding process, and the fine material present may have to be overground or underground, with reduced grinding efficiency.

The effect of mill design on grinding performance in a horizontal bead mill 1. 

Introduction The performance of grinding mills is a critical factor determining the efficiency of...

The geometry of the mill may also be a factor in terms of efficiency. Horizontal style ball mills have the advantage of lower cost of installation than the vertical style and are often for smaller tonnages that will not justify the use of electric steel balls. The taller and narrower vertical ball mill with its own mechanism shown in (4 ) may not be very efficient in the grinding of the grinding balls and clumps of material.

Insights into the efficiency of ball mils in both ball and vertical mills

In general, the overall efficiency of ball mills is a function of many factors including ball mill grinding media distribution, particle size distribution and mill geometry. However, this superiority is not so pronounced in practice, as a result of the much more even grinding media distribution in the horizontal grinding mills and the better shaped design of the latter.