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US3358937A - Dry grinding of alumina - Google Patents Dry grinding of alumina Download PDF Info Publication number US3358937A ... Priority to US507218A priority Critical patent/US3358937A/en Application granted granted Critical
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Conventional dry grind process. Clean corn was ground in a laboratory hammer mill (Retsch SK100, Glen Mills, Clifton, NJ) using vibrating feeder (F-TO, FMC Syntron, Tupelo, MS) and screened through a 0.5 mm sieve. All dry grind experiments were performed at 250 mL scale in 500 mL stainless steel reactors.
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A method for dry grinding a workpiece, comprising grinding a workpiece with an abrasive tool comprising a magnesium oxychloride cement bond containing graphite in an amount of at least about 5% by wt. based on the MgO content of the bond and an abrasive material in an amount sufficient to effectively abrade the workpiece.
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Dry Grinding has limitation due to low threshold of release of kinetic energy to grind the solids and the heat generation in the process of dry grinding . In wet Grinding process, can go upto NANO size particles easily If you have any specific problem can contact me on [email protected] I am in area of wet grinding for last over 33 years .
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FIG. 3 is right side elevation of the subject wet and dry food grinder; FIG. 4 is rear elevation of the subject wet and dry food grinder; and, FIG. 5 is top plan view of the subject wet and dry food grinder. The broken line showing of a grinder blade and hub assembly is for illustrative purposes only and forms no part of the claimed design.
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JP-2010520349-A chemical patent summary.
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The s-Jet ® System (patent pending) is a new innovation in a line of consistent developments being made in the area of air jet milling. Final finenesses in the submicron range (example: d 50 0.2 µm) can now be achieved with fluidized bed jet mills. As opposed to conventional dry grinding processes with fluidized bed jet mills, the s-Jet ® System uses superheated steam as its milling gas.
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Justia Patents Liquids Added To Classify Or Separate Material US Patent Application for IRON ORE CONCENTRATION PROCESS WITH GRINDING CIRCUIT, DRY DESLIMING AND DRY OR MIXED (DRY AND WET) CONCENTRATION Patent Application (Application #20140117125)
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A continuous dry grinder for grinding particulate material with the assistance of grinding elements includes a comminuting vessel which contains the grinding elements and receives material to be ground through an upper feed chute and discharges the ground material through a radially mounted screen, valve and discharge chute.
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United States Patent 5340036 . Abstract: A grinder for ... The Z-shaped brackets of FIG. 6 have been found to be particularly effective for dry grinding of solid materials, for example, medical wastes such as those made of plastic, metal, or cloth including needles, tubing, or the like.
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Justia Patents With Heating Or Cooling Of Material US Patent for Process for dry-grinding a polysaccharide derivative Patent (Patent # 8,973,853) Process for dry-grinding a polysaccharide derivative . Jul 28, 2010 - Dow Global Technologies LLC. In a ...
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The invention provides a dry grinding system including grinding means for dry-grinding a material to be ground; first classification means for classifying a ground product obtained through the grinding means, into fine powder having a relatively small average particle size and coarse powder having a relatively large average particle size; second classification means for further classifying the ...
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Justia Patents Non-coaxial Or Eccentric US Patent for Nano grinding mill (dried type) Patent (Patent # 7,347,393) Nano grinding mill (dried type) Aug 11, 2003 - Techworld Co., Ltd.
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Apparatus for grinding particulate solid material in a substantially dry state, the apparatus comprising, means for introducing particulate solid material into a grinding chamber (4), a perforated base (8) of the grinding chamber (4) through which gas is introduced to provide an upward flow of gas passing through the particulate solid material and an impeller (42) rotating in the grinding ...
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To improve operating efficiency of a dry grinding machine, the dry grinding machine includes a rotating shaft; a first blade that is rotationally driven by the rotating shaft; a grinding chamber that houses the first blade; a feed-in section that feeds material to be processed, which is transported by hot wind into the grinding chamber from a direction intersecting the rotating shaft; and a ...
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EDMONTON, AB – Iberian Minerals said on Thursday that its wholly owned subsidiary, Mineworx Technologies has filed for patents on its proprietary HM X-Mill grinding technologies. The patent pending HM X-Mill is a transformation in grinding technologies and is based on Mineworx's proprietary, high velocity, horizontal rotary milling design.
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A grinder for dry waste materials includes a vertically-oriented, cylindrically-shaped housing having an opening at its upper end for receiving materials to be comminuted. The shredder element has upwardly-extending impeller blades disposed on its upper surface. The outer perimeter of the shredder element is separated from the inner wall of the housing sufficiently to provide a gap through ...
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A dry grinding process for reducing ore to pelletizable particles comprises grinding the ore in a size-reducing unit and classfiying the ore in a centrifugal pneumatic separator which is automatically controlled to make the coarse fraction available at a substantially constant rate. The coarse fraction is recycled to the size-reducing unit and the total rate of fed ore and recycled coarse ...
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Justia Patents Liquids Added To Classify Or Separate Material US Patent for Process for dry-grinding a polysaccharide derivative Patent (Patent # 8,727,246) Process for dry-grinding a polysaccharide derivative . Aug 31, 2010 - Dow Global Technologies LLC. In a ...
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US3252810A - Dry grinding of ceramics - Google Patents Dry grinding of ceramics Download PDF Info Publication number US3252810A ... Priority claimed from FR960987A external-priority patent/FR1388155A/en Application granted granted Critical
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Grinding is simpler than ever! PUHLER ® dry grinding system is an innovative device, which integrates the dry grinding and dynamic classifing of materials. With mature dry grinding technology, our dry grinding machines are ideal choice for dry production of submicron or micron materials, can work on almost all kinds of dry powder grinding.
أكمل القراءة
Apparatus for grinding particulate solid material in a substantially dry state, the apparatus comprising, means for introducing particulate solid material into a grinding chamber (4), a perforated base (8) of the grinding chamber (4) through which gas is introduced to provide an upward flow of gas passing through the particulate solid material and an impeller (42) rotating in the grinding ...
أكمل القراءة
The s-Jet ® System (patent pending) is a new innovation in a line of consistent developments being made in the area of air jet milling. Final finenesses in the submicron range (example: d 50 0.2 µm) can now be achieved with fluidized bed jet mills. As opposed to conventional dry grinding processes with fluidized bed jet mills, the s-Jet ® System uses superheated steam as its milling gas.
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Justia Patents Abrading Process US Patent for Methods for grinding and polishing dried concrete using amorphous colloidal silica solution Patent (Patent # 9,073,165)
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Amazon.in: Buy Havells Silencio 4 Jar Mixer Grinder with 5 Patented Technology, HVDC low noise motor, Double Layer Steel Jar, Digital Display with Pre-Set Options, Triple Safety Protection and 2 Litre Jar-Grey Black online at low price in India on Amazon.in. Free Shipping. Cash On Delivery
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A method and apparatus for the dry grinding of solids, comprises initial coarse grinding of the solids in a controlled vortexing of a fluidized bed and directing the solid fine particles generally upwardly into a vortex grinding zone and grinding the upwardly directed solid particles in the vortex grinding zone by passing a portion of the particles through the vortex grinding zone.
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The present invention provides a process for dry grinding one or more mineral materials which include at least calcium carbonate. The process includes a) crushing the mineral material or materials in at least one crushing unit until a crushed material is obtained with a d95 of less than 10 cm, and dry grinding the material in at least one grinding unit (i) in the presence of at least one comb ...
أكمل القراءة
Apparatus for grinding particulate solid material in a substantially dry state, the apparatus comprising, means for introducing particulate solid material into a grinding chamber (4), a perforated base (8) of the grinding chamber (4) through which gas is introduced to provide an upward flow of gas passing through the particulate solid material and an impeller (42) rotating in the grinding ...
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Silent Vortex Electric Grinder KRUPS : The Silent Vortex grinder's superior performance is designed for the most silent operation. This 3-in-1 grinder easily handles Coffee, Spices and Dry Herbs. The patent pending Vortex Spin Technology grinds up to 12 Cups of drip coffee in 15 seconds, and tackles stubborn spices with ease. The stainless steel grinding bowl detaches for storage and dish ...
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US3325105A US383519A US38351964A US3325105A US 3325105 A US3325105 A US 3325105A US 383519 A US383519 A US 383519A US 38351964 A US38351964 A US 38351964A US 3325105 A US3325105 A US 3325105A Authority US United States Prior art keywords grinding mineral additive cement amino acids Prior art date Legal status (The legal status is an assumption and is …
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The invention provides a dry grinding system including grinding means for dry-grinding a material to be ground; first classification means for classifying a ground product obtained through the grinding means, into fine powder having a relatively small average particle size and coarse powder having a relatively large average particle size; second classification means for further classifying the ...
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