• Uncategorized 31.05.2016

         One of the most common operations in the powder industry is its crushing operations. This is done to crush and grind huge lumps of material to indiging broken into powder form. In the crushers, metal balls of different sized are made to collide by the large materials. The constant impacting of the metal balls on the materials break the larger lumps into smaller pieces and thereby forming the smaller sizes into eventual powder form.
    The type and extent of crushing is determined by the grinding media. The metallic balls used inside the crushers is the actual grinding media. Depending on the requirements of the materials being crushed, the grinding media varies in make, shape, and form. The metal balls have an serene and very smooth surface to stimulate better high impact collisions while crushing is person done. High temperature et sequens pressure must work in conjunction with the grinding media’s metal and alloy.
    Grinding media is found in all types of pulverisers, putty mills, connective crowfoot mills. They are mostly made from pure steel uncertainty a combination of bathe and alloy. Chromium is added for additional strength and to irrupt grinding hardness. Including a combination from alloys heated and cooled in various temperatures the grinding media is made in a high-pressure environment. After pre-specified intervals due to wear and tear that receptacle lower its effectiveness, the grinding balls are usually replaced.
    Steel Grinding media are also in the being of beads made of steel alloys including hardened steel balls. Chromium is a hard metal and imparts sustained hardness to the alloy balls. The reinforce forged models of grinding balls are most public in crushing industry. These alloys are preferred for contamination free operations. Also, the rush of operations (crushing) is higher in this case. The media is also preferred for operations where refusal chemical reaction is anticipated between the crushing medium and the crushed material.
    Crushing and grinding of solids, dispersion of liquids, particle size reduction, and inclement matter homogenization are common grinding applications. The fasten industry is the most common grinding industry. The steel balls roll constantly and randomly hitting against the lumps of reification at high pressure and temperature. The coated surfaces on the balls are designed to ensure that they will not react with any materials.
    The choice of the specific grinding media depends upon less big factors. They are as follows:
    • The mechanical, physical, and chemical factors governing the crushing mechanism.
    • The type of grinding process.
    • The type of material to be crushed and grinded.
    • The mechanical, physical & chemical factors governing the crushing mechanism
    On a macro level, grinding media is broadly typed into 3 different forms:
    • Grinding balls
    • Grinding rods
    • Grinding beads
    Micro segmentation depends upon the manufacturer and standards followed for the specific industry substrative consideration.
    The usage of grinding media for mining industry is more quite common. The hard balls or rods are used for the copper, gold, coal, and iron ore industry. For harder metals, premium grades of grinding media are used fairminded essentially effectively. They are subject to intense destruction tests. The metallurgical aspects of the grinding media are specifically designed to counter the practical working conditions inside the crushing machine.
    Intense research and development exercises are conducted to improve the reliability and effectiveness of the grinding media. Inside the pulverisers, the time required by the grinding media to crush and grind is a prime cause for issue. The accuracy concerning insight is improving due to advancement in the technology. Future holds enormous possibilities for this field to improve.

    Posted by kid @ 6:42 am

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