iron ore ball mill patent in usa

Jun 10 1980 · Iron ore is beneficiated using separation steps based on mineral composition without the use of separation steps based entirely on size In a preferred sequence of steps the iron ore is passed from a ball mill through a magnetic separator where low iron content tailings are rejected and the concentrate passed to a flotation step where a high iron content concentrate froth is made and the

Process for iron ore pellets production us patent 5908166 patent description the present invention relates to a process for iron ore the results of these tests have indicated that the iron ore fines grinding in a ball mill

A Jankovic in Iron Ore 2015 8322 Ball mills The ball mill is a tumbling mill that uses steel balls as the grinding media The length of the cylindrical shell is usually 1–15 times the shell diameter Figure 811 The feed can be dry with less than 3 moisture to minimize ball coating or slurry containing 20–40 water by weight

2017329the development of the polymet concept led to the first patent in 1987qual height reduced downtime as a result of fewer metallic mill linings iron and steel are traditional mill lining materials and magnetic ore light duty ball mills vertimills get price

Method of ball mill feeding quantity The traditional method of ball mill control of iron ore dressing equipment is to use single parameter to control ore and iron ore dressing equipment ball mill to control system frame The ball mill is composed of a belt scale photoelectric conversion device a regulator a recorder an automatic funnel switching device a thyristor governor and a belt

Iron Ore Ball Mill Patent We are a largescale manufacturer specializing in producing various mining machines including different types of sand and gravel equipment milling equipment mineral processing equipment and building materials equipment

Iron Ore Discoveries Powering the American Industrial Iron ore deposits were found in many areas of the United States but mining was centered in western Pennsylvania and eastern Ohio during the postCivil War period Iron production and the emerging steel industry developed around Pittsburgh which enjoyed the additional advantage of nearby coal fields

The surface of the cast grinding steel ball is not allowed to have the casting defects such as the crack and the obvious gas porosity inclusion shrinking cavity cold shut elephant skin etc It is not allowed to have the shrinkage cavity shrinking porosity gas porosity inclusion and other cavity defects on the section including plane pasting through the pouring gate and the ball centre

Multotecs Iron Ore Industry Flow Sheet We use cookies to improve your experience on our website By using our site you agree to Cookies Policy

High End New Iron Ore Rod Mill Sell At A Loss In Houston Usa North America We are a highend mining machinery manufacturer in Asia The main production equipment includes crusher sand makingmachineball millRaymond mill cement equipment and other products