Technical Factor of the Omnipotent Ball Mill

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Quantity:
0
Shipping Terms:
FOB
Date Posted:
2012-02-28
Expires:
2013-02-28
Status:
Expired

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The United States is the largest rock producer in the world. About 30% of the world production in 1990 was produced by the United States (Bartels and Gurr 1994). This level of production has continued to the present. The State of Florida generates approximately 70% of the U. S. annual production of about 40 million tons (Harben 1980). A typical beneficiation process in central Florida includes washing, classification, fatty acid flotation, acid scrubbing, and amine flotation. The upgraded concentrate is used for toothpaste, detergents, food, fertilizers, etc. Approximately 95% of produced is consumed in fertilizer machines where phosphorus, together with nitroge n and potassium, is utilized as the major nutrient for machines.

In fertilizer machines, is used to produce phosphoric acid by reacting with sulfuric acid. The phosphogypsum crystals formed during this chemical reaction are discarded and the phosphoric acid is further processed to give the finished fertilizer product. To increase the chemical reaction rate, rock is ground to fine particle sizes prior to the chemical reaction process. It usually takes 10-15 minutes of grinding to reduce size to more than 40% -200 mesh. The direct operating costs in grinding are mainly the energy cons umed and the metal lost through wear and corrosion. Fine grinding of is en ergy intensive and more than 60% of the electrical energy consumed in the fe rtilizer machine is used in grinding rock. Thousands of tons of grinding medi a is consumed in chemical machines every year. Reducing wear and corrosion ra tes will significantly reduce the grinding costs and improve the grinding efficiency by maintaining optimal grinding ball size.

This machine has made a great improvement in the structure compared with the traditional one. Its cylinder and supporting fame compose an integral system, thus, when it is being fixed, it will be hung on the foundation once. Equipped with double-tiered centripetal roller bearing, its power consum

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