Classification is based on the effectiveness of the ball mill particle size reduction, the total energy consumed, and time wear of the tube machine ball mile.Tipe-type, namely:
a.Tumbling
It is a tool that is a horizontal cylinder which almost half is filled with the tools of destruction, usually cast iron or steel balls. This device consists of a cylinder rotation is large, which is extensively used in several industries to crush and grind the material into a material measuring an large sized grains (granular) or even become material l with a very fine size (mill). Tumbling Mill can be classified according to their form into two types, namely cylindrical and cylindro-conical.
a. The Hardinge Mill
This tool is a device that is triggered by power derived from ore that is therein so as to change the size of the ore into finer ore lagi.Hal This causes a very gentle boil over as a more subtle measure to the next section.
b. The Cascade Mill
In the studies concerning the dynamic process, or to find a disturbance, tentangproses grinding, then there are four things that need to be considered:
1. The process of grinding gives an insight into the way in which a change in each grinding process variables affect performance, which can slow down or speed up the process, the cumulative after a certain period of time or are smoothed by a proprietary self-stabilisingmenyangkut circuit, and into which part concerns the circuit into changes in individual variables feel most.
2. enabling cause-effect relationships to be identified and a true election to be made darimenyangkut variables which must digunakanuntuk tertentutujuan control.
3. Dynamic data as possible is used to build and dynamic memverifikasimodel concerning the process which may then be used to design and test control plan.
4. Dynamic data which is obtained by studying over a short interval of time / short is a process in response to the deliberate manipulation of a variable to give the data more reliable and accurate information on the achievements of a process than do steady position data. The reason for this is that errors can be much more readily detected with dynamic data.
Grinding is the process of continued downsizing of the already measuring 2.5 cm to finer sizes. In the grinding process required grinding media which is comprised of:
1. The balls of steel or ceramic (steel or ceramic balls).
2. rods of steel (steel rods).
3. Mixed steel balls and minerals or ores alone are called semi autagenous mill (SAG).
4. Without grinding media, only minerals or ores mutually grind and called autogenous mill.
Grinding equipment used are:
1. Ball mill with grinding media such as steel balls or ceramic.
2. Rod mill with grinding media in the form of steel bars.
3. Semi-autogenous mill (SAG) when the media is partly penggerusnya minerals or ore itself.
4. Autogenous mill when media penggerusnya are minerals or ore itself.
Figure 4.5Ball Mill Classfier
Ball Mill Features:
1. It is an efficient tool for grinding many materials into fine powder.
2. Factory balls are used to grind many kinds of mine and other materials, or to select the mine.
3. Factory Balls are widely used in building materials, and chemical industries.
4. There are two ways of grinding :. The dry method and wet method.
5. The ball mill can be divided into table type and flowing type according to differentexpelling mine.
6. To use the ball mill, the material to be ground is loaded into the neoprene barrel that contains grinding media.
7. As the barrel rotates, the material is crushed between the individual pieces of grinding media that mix and crush the product into fine powder for several hours.
8. The longer the ball mill runs, finer powder will be.
9. Ultimate particle size depends entirely on how hard the material you're grinding, and time how long the ball mill runs.
10. The ball factory we have been used to grind glass, powder products
food, create custom varnishes, make ceramic glaze, chemicals
powdered variety.
11. Complet ely enclosed welded design in high-grade steel.
No comments:
Post a Comment