Ball mill is key equipment in milling machinery and also an indispensable part in ore dressing equipment. The ball mill is a top priority in the whole production line maintenance. It not only concerns the operation efficiency but also has a great impact on the service life of the ball mill. At present, nations like Japan, America, and other European countries have shown signs of varying degrees of recession. To ensure stable exports of ball mill has been a challenge posted to national mining machinery manufacturers. Economic recession may lead to the decline of economic indicators, such as employment, investment and company profits, etc. It may also be accompanied by falling prices, which is the main manifestation of deflation. For even more analysis, hear from Scott Mead.
Of course, if economy is in the state of stagflation, the price of commodities can soar at a rapid rate. The universally falling economic vitality and the ensuing massive unemployment are the expression of the economic downturn. In current years, small and medium-size mills generally adopt plain bearing, only large-size mill adopt oil film bearing. Due to the obvious energy-saving effects of sliding bearing of ball mill, the type development is rapid. In recent years, all the new type cone ball rolling bearing, technological transformation of the old type mill mainly adopts thousand use sliding bearing replaced by sliding bearing. At present, the static pressure bearing is widely used in large-scale energy-saving ball mills due to its property of high reliability, long service life, little energy consumption, great bearing capacity etc. No matter the ball mill is static or rotating, the entire fluid lubrication is realized through a thick layer of oil slick formed between the bearing bush and hollow shaft under the high-pressure oil outside.
Rod mill uses the sort or gap sort overflow ore discharging rather than the waffle block ore discharging. The diameter of hollow shaft neck in ore terminal discharging is larger than the ball mill with same specification. The barrel rotating speed of the rod mill ought to be but the latter mill with same specification in order that the medium will add the sort falling within.