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the difference between DISC MILL and Hammer MILL

Number of visits: Date:February 8,2015

cutting with forming cutters of end mill type, side mill type or disc type.A disc mill, is a type of crusher that can be used to grind, cut, shear, shred, fiberize, pulverize, granulate, crack, rub, curl, fluff, twist, hull, blend, or refine. It works in a similar manner to the ancient Buhrstone mill in that the feedstock is fed between opposing discs or plates. The discs may be grooved, serrated, or spiked. Typical applications for a single-disc mill are all three stages of the wet milling of field corn, manufacture of peanut butter, processing nut shells, ammonium nitrate, urea, producing chemical slurries and recycled paper slurries, and grinding chromium metal. Double-disc mills are typically used for alloy powders, aluminum chips, bark, barley, borax, brake lining scrap, brass chips, sodium hydroxide, chemical salts, coconut shells, copper powder, cork, cottonseed hulls, pharmaceuticals, feathers, hops, leather, oilseed cakes, phosphates, rice, rosin, sawdust, and seeds. Disc mills are relatively expensive to run and maintain and they consume much more power than other shredding machines, and are not used where ball mills or hammermills produce the desired results at a lower cost. HAMMER MILL: A hammermill is a machine whose purpose is to shred or crush aggregate material into smaller pieces. These machines have many sorts of applications in many industries, including: Ethanol plants (corn) A farm machine, which mills grain into coarse flour to be fed to livestock Fluff pulp production Fruit juice production Grinding used shipping pallets for mulch Milling grain Sawmills, size reduction of trim scrap and planer shavings into boiler fuel or mulch Desktop hammer mill used for preparing growth media in a life sciences laboratory Shredding paper Shredding scrap automobiles (see automotive shredder residue) Shredding yard and garden waste for composting Crushing large rocks In waste management The basic principle is straightforward. A hammermill is essentially a steel drum containing a vertical or horizontal rotating shaft or drum on which hammers are mounted. The hammers are free to swing on the ends of the cross, or fixed to the central rotor. The rotor is spun at a high speed inside the drum while material is fed into a feed hopper. The material is impacted by the hammer bars and is thereby shredded and expelled through screens in the drum of a selected size. Hammer mill apple shredder for juicing. The hammermill can be used as a primary, secondary, or tertiary crusher. Small grain hammer mills can be operated on household current. Large hammer mills used in automobile shredders may be driven by diesel or electric motors ranging from 2000 to over 5000 horsepower (1.5 - 3.7MW). The screenless hammer mill uses air flow to separate small particles from larger ones. It is designed to be more reliable, and is also claimed to be much cheaper and more energy efficient than regular hammer mill

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