Results 211 to 220 of about 32,583 (258)

Dry-dressing for ecological grinding

Journal of Cleaner Production, 2016
Abstract In order to comply with strict environmental regulations, a current challenge for industry is the need to reduce, or, where possible, completely eliminate the use of cooling and lubricant fluids. In the case of a high added-value technology such as grinding (typical in aerospace, biomedical, and other high-tech sectors) the damaging effects ...
X. Cearsolo, I. Cabanes, J.A. Sánchez, I. Pombo, E. Portillo   +4 more
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Dry grinding kinetics of colemanite

Powder Technology, 2007
Abstract The kinetics of batch dry grinding of colemanite from the feeds of sieve sizes − 2.360 + 1.700, − 1.700 + 1.180, − 1.180 + 0.850, − 0.850 + 0.600, − 0.600 + 0.425 and − 0.425 + 0.300 mm has been determined using a standard Bond mill. The specific rates of breakage ( S i ) and primary breakage distribution ( B i,j ) values, called ...
V. Bozkurt, I. Özgür
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Forces in Dry Surface Grinding

Journal of Fluids Engineering, 1952
Abstract A dynamometer is described for measuring independently the normal and tangential forces in surface grinding. These forces are correlated with such variables as wheel speed, table speed, depth of cut, direction of table motion, grit material and size, specimen hardness and dressing technique.
E. R. Marshall, M. C. Shaw
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Effects of dry grinding on pyrophyllite

Clay Minerals, 1988
AbstractDry grinding of pyrophyllite (Hillsboro, USA) has been studied by X-ray diffraction (XRD), specific surface area measurements (BET) and scanning electron microscopy (SEM). At the beginning of the grinding process, some effects such as delamination, gliding and folding of the layers, and decrease in particle size were detected by SEM and XRD ...
J. L. Pérez-Rodríguez, L. Madrid Sánchez del Villar, P.J. Sánchez-Soto   +2 more
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Effect of Grinding Aid Mixtures on Dry Grinding of Calcite

Chemical Engineering & Technology
ABSTRACT This study investigated dry grinding of calcite using novel grinding aid mixtures combining triisopropanolamine (TIPA) with industrial by‐products: olive pomace oil (OPO), olive wastewater (OWW), and molasses (CM). Grinding performance was evaluated by particle size ( d
Serkan Cayirli, Ibtesam Manla, Hasan Serkan Gokcen   +2 more
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Dry grinding by special conditioning

The International Journal of Advanced Manufacturing Technology, 2006
Dry grinding is one of the most favourable processes from an economical as well as an ecological point of view. However, it is rather difficult to achieve this goal due to the nature of the grinding process. A common method for reducing and eliminating the use of metalworking fluid is to reduce any harmful heat generation observed in the process.
T. Tawakoli, E. Westkaemper, M. Rabiey
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Effective role of grinding aids in the dry grinding performance of calcite

Powder Technology, 2023
Grinding aids are organic compounds that chemically attach to a sufficient amount of particle surfaces and prevent the formation of gravitational forces between particles. With the use of grinding aids in grinding, it is possible to increase the amount of production with the wanted product fineness and obtain a finer product with the identical amount ...
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Alteration of imogolite by dry grinding

Clay Minerals, 1981
AbstractThe effects of dry grinding on the structure, morphology and properties of imogolite have been investigated by means of X-ray powder diffraction analysis, IR, DTA, and measurements of CEC and specific surface area. Imogolite is very susceptible to alteration by grinding compared to layer silicate minerals such as halloysite, kaolinite and ...
Teruo Henmi, Naganori Yoshinaga
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Experimental evaluation of power requirements for wet grinding and its comparison to dry grinding

2017 IEEE Industry Applications Society Annual Meeting, 2017
Grinding operation is the most energy consuming stage in the production of cooper in mining facilities, as well as a major component in the cost of production. Therefore, deriving the relation between the power requirements and the mill operating conditions is of interest, both during planning / design of a new grinder, and during its operation.
Benjamin Castro Opazo, M. Anibal Valenzuela   +1 more
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Wet Grinding and Drying-Grinding Operations

1981
By wet grinding the nature of the pulp hinders the direct contact of particles, agglomeration becomes likely only in a very late phase of the process following the thickening of the pulp. The moisture content of the slurry has a determining influence upon efficiency, an optimal value can always be found.
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