engineering charts

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.

BTU Energy Required to Dry Ores and Concentrates

To Drive off Moisture (theoretical) per Ton (2,000 lbs.) of Dry Material. Total B.T.U. include 63,840 B.T.U. to raise temperature of material from 60° F. to 212° F. at which point evaporation takes place (at sea level); specific beat of material taken as 0.21. Coal assumed to have 12,000 B.T.U. per’lb. as used and is … Read more

Calculate the Capacity of an Agitator & Conditioner

Example 1) It is desired to give 48 hours of contact on 100 tons per 24 hours of 2.7 specific gravity ore in a pulp of 40% solids (1:1.5). What size agitators will be needed? Total volume equals 59.85 –> from our Pulp Density tables. Tons feed equal 100. 59.85 time 100 equals 5,985 cu. ft. (total … Read more

Calculate Slurry Flow / Volume

calculate slurry flow volume

An example of how you can calculate the slurry flow/volume of a given SG, %Solids and Tonnage. EXAMPLE: 3,400 tons of dry solids is processed in 24 hours in water with a specific gravity of 1.0 and the concentration of solids by weight is 33% with the solids having a specific gravity of 3.7 then … Read more