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A 9ft x 9ft ball mill is being used to grind 55 TPH of slag for useas a filler material. The size analysis of the feed material is 80%passing 8 Tyler mesh, and the product size (product A) is 80%passing 65 mesh. The ball mill is powered by a 450 HP motor, andthe 450 HP is fully utilized in grinding the feed to the productsize.
A new market has been developed, which requires a product size of80% passing 150 mesh (product B).
a) Using the Bond Approach, calculate the TPH of Product B that canbe produced with the existing mill.
b) The company plans on producing both Product A and Product Bsimultaneously (to satisfy two seperate markets) at the rate of 55TPH each. The existing mill will be used to produce Product A and anew mill will be installed to produce Product B.
Assuming that the new mill can be scaled to the existing 9ft x 9ftmill and that the length of the new mill is to be equal to itsdiameter, calculate the dimensions of the new mill. Round offfractional mill dimensions exceeding .2ft to the next higher value(e.g. 9.3ft= 10ft).
A W18x130 section is used as a column with one end pinned and the other end is fixed against rotation but free to translate. The length is 12 ft. determine the strength of the A992 steel column.
For each of the horizons, provide a description of the soil characteristics and briefly describe the environment where you would expect to find the horizon?
A 48-in water main carries 79 cfs and branches into two pipes at point A. The branching pipes are 36 and 20 in. in diameter and 2800 and 5000 ft long, respectively. These pipes rejoin at point B and again form a single 48-in.
An April 2009 survey of 2253 American adults conducted by the Pew Research Center's Internet & American Life Project revealed that 1262 of the respondents had at some point used wireless means for online access.
Write a simple MATLAB program that will estimate the area of a circle using the lower and upper bounds (using triangles). The user will input the diameter of the circle and the desired accuracy (relative error ) and the program must run
Jose is swinging a small bucket of water by a rope over his head at a constant angular speed of dot=10rad/s. The rope is Length L=1m and the combined mass of the bucket and water is 4kg.
Estimate the amount of Ca(OH)2(s) leached from concrete during a one-year period by precipitation. Assume that the area receives 40 in/yr of precipitation which is in equilibrium with PCO2= 10^-3.5 atm and [SO42-] = 10^-4 M
need to design a cantilever retaining wall 8m high saturated unit weight is 16knm3 surcharge is 7knm2 load above wall
The steel uniform shaft has four pulleys attached to it and frictionless bearings at its ends. The pulley at B is connected to a motor that is driving the system. The other three pulleys are consuming the power delivered by Pb .
Based on information provided in the survey bulletins and knowing that the landfill is located in the municipality of Duque de Caxias, on the shore of Guanabara Bay opposite Governor's Island (Galeao Airport)
Roughly what is the maximum Volume of treated wastewater should you put in the bottle if you want to have at least 2.0mg/l of DO at the test (filling the rest of the bottle with the water
The owners wish to achieve an initial acceleration from rest of 22 ft/(sec^2) on a level paved surface. What is the minimum coefficient of road adhesion needed to achieve this acceleration
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