engineering tables

Weights of Minerals and Materials

Source: This article is a reproduction of an excerpt of “In the Public Domain” documents held in 911Metallurgy Corp’s private library.

Miner’s Inch Conversion

A Miner’s Inch is a measure for flow of water, and is the quantity of water that will flow in one minute through an opening one inch square in a plank 2 inches thick under a head of 6.5 inches to the center of the orifice. This is equivalent, approximately to 1.2 cubic feet, or … Read more

Slope of Flotation Slurry Launders for Froth Flow

Launders should have high enough velocities to prevent particles from settling, or if they fall to the bottom, to keep them rolling and sliding. The depth of water should not be much over the diameter of the largest rolling particles. For concentrates and heavy gangues slopes should be increased 25—100%. SPRAY WATER IN LAUNDERS:—While it is … Read more

Troughing Belt Conveyor Capacity

Note. Above capacities are based on the assumption that material will be fed to conveyor uniformly and continuously. If loading is intermittent the conveyor should be designed for the maximum rate of loading likely to occur. For flat belts not troughed, use one-half of the above capacities. Estimating Conveyor Slope and Angle