Fine Grinder for Mine Mineral Processing

Fine Grinder for Mine

 

 

 

 Mineral Processing

 

 

Deswik Mining Consultants have launched in Australia the highly innovative fine

grinding mill which they claim is efficient, green and smart.

A fine

grinding mill is a machine that grinds mineral ore into standard particle sizes

for easier mineral extraction.

There are many ways to extract

minerals from ore. For example, when tiny grains of gold are spread through a

gravel deposit the gravel is poured onto a table that is coated with mercury.

When the table is vibrated the gold grains work their way to the table surface

and combine with the mercury. This method works because gold has a strong

tendency to combine with mercury. The gold of course then has to be separated

from the mercury.

A different method is used to separate sulphide

(sulfide) minerals from others in order to obtain their sulphur. In this case

the conglomeration of minerals might be finely ground up and then vigorously

mixed in a tank of water through which air is being bubbled.

In this

process, which is called flotation, the sulphide minerals cling to the bubbles

and are collected from the froth that spills over the top of the

tank.

As mineral prices soar due to the boom in economies like China

and India, it becomes more and more economically viable to reprocess that

tailings from old mines using new technology.

As South African Mines

have discovered, the Deswik mill has many distinct advantages over conventional

mills.

The Deswik product has a highly variable speed hydraulic

drive, patented vertical turbo disc impeller, inert bead media, small footprint,

high availability, shorter delivery times, and high energy

efficiency.

The simple and robust design of the vertical mill means

ease of maintenance and higher availability.

The mill can offer

greater mineral recovery at reduced capital and running cost.

The

first test mill is currently being commissioned for Australian Metallurgical and

Mineral Testing Consultants (AMMTEC), in Western Australia and will be available

for testing in July of this year.

The Deswik mill is of vertical

construction, manufactured in mild steel/stainless steel, with all wetted parts

lined with hard wearing and contamination-free polyurethane resin. The chamber

is water jacketed for cooling. A separate heat exchanger system is also

available.

The impeller is a patented turbo-disc design unique to the

Deswik mill. It is designed in such a manner that its assembly is modular and

the configuration may be easily changed to achieve different end product size

and distribution characteristics.

The Deswik mill is available in a

range of sizes, from 250 litre mills delivering four (4) to eight (8) tonnes per

hour (t/hr), to 5,000 litre mills delivering 75 – 150 t/hr dependent upon the

required end product size.

The Deswik mill can produce particle sizes

from a D-50 of 200 micron down to 0.1 micron. This is achieved over a range of

some 200 different products at energy consumption levels as low as 3 kWh/ton.

Recent production and testwork for various clients has indicated that in certain

process circuits a Deswik fine grinding mill can assist in doubling the

concentrate value increasing the recovery by over 50%.

Already the

mill has generated interest in Australia due to its potential to improve

recovery whilst significantly reducing power consumption.

As cleaner,

greener technological processes are being demanded from Australian mining

companies, the Deswik mill’s introduction could not come at a better time. In

certain applications the use of the mill will more than halve the grinding and

recovery costs.

Source:

http://www.ArticlePros.com/author.php?John
Hacking