30/05/2014 Writing - Editing - Translating
In grinding the metal it is apt tobeeom e.warm due to the mechanical action, and if the liquid has not been rendered non-inflame mable there will be a -short interval of time when there is a possibility of explosion of the oil vapors,Limestone Crusher Machine, if there is-access ofatmosphere. To obviate the possibility of such 3.1;,
explosion I contemplate exhausting the air from the mill, its place being takenb the oil vapors which will be given off. r of course a simple remedy will-be to make the liquid non-inflammable or to use a non-inflammable liquid in the first instance. Furthermore, I contemplate keepingdown the temperature of the'mill during operation by a spray of cooling water or the like. In the case of continuous grinding, that is, where the oil and metal are fed and discharged continuously and the oil returned after being separated from the metal, the temperaturemay be maintained by some outside cooling means, or by circulation through pipes which are air cooled or water cooled, or any other desirable means.Copper Beneficiation Process. While this cooling is not strictly essential to operation, it doesundoubtedly lessen the risk of firel'n the case of inflammable liquids, and prevents loss of liquid from evaporation whether the liquid is inflammable or non-inflammable.
The art of manufacturing metal dust which consists in mechanically disintegrating the metal, while keeping it covered with i by vaporization; and thereafter freeing the.disintegrated material from the liquid by evaporation of the liquid, to produce a dry metallic powder.The art of manufacturing finely divided metal in the form of minute relatively fiat flakes, which consists in subjecting the metal to the action of a ball mill or the like, while keeping it covered with a lubricating liquid which protects the metal against the eiiects. of atmosphere and is inert to the metal, and which has a boiling point high enough to prevent excessive loss by vaporization during the disintegration, but not so high that there will be diiiiculty in its separation later from the metal by vaporization; and thereafter evaporating the liquid from around and between the particles to produce a dry metallic powder.
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