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A two stage crushing operation feeds 0.6 m diameter ore into a primary crusher at a rate of 25mt/hr. 80% of the ore feeds through an 0.2m screen into a secondary crusher. 65% of the ore from the secondary crusher comes out of a 50mm screen.
a. draw a basic flow diagram for this operation
b. calculate the re-circulating load in the primary crusher
c. calculate the re-circulating load in the secondary crusher.
Structural design of reinforced cast in - place concrete - Structure design
The factory will use a 4 ft deep on-site lagoon to stabilize the waste with a loading rate of 20 lb BOD/acre-day. Part a) What is the total BOD loading per day?
A chemical plant uses a tube-within-a-tube counterflow heat exchanger to heat air with the use of steam. During steady state operation, the air flows into the exchanger at a rate of 5,000 kg/h and a temperature of 27C and exits at a temperature..
what is the difference between factor of safety in rankine & coulomb in overturning, sliding and bearing capasity ?
The acceleration of a particle is defined by the relation a= -0.7v where a is expressed in in/s2 and v in in/s. Knowing that t= o the velocity is 30in/s, determine 1.) the distance the particle will travel before coming to rest
Determine the major and minor principal stresses at failure and the effective stress friction angle (assume c' = 0). Plot the Mohr diagram.
A steel flat bar of dimensions 4x1x12 inches is PINNED between two copper bars of dimensions 4x2x12 inches at room temp. The PINNED assembly is then cooled by 200 degrees fahrenheit.
A 15kg Block rests on top of a 25kg Block which is subject to a 400N force. Block B sits on a table. the Coeffiecents of friction are the same for all surfaces, u(s) is .4 and U(k) is .3. The force is Applied to the bottom block ( with no inclinat..
what do mean by outstand element of compression flange, internal element of compression flange and web general
A flood control project has a construction cost during the first year of $10 million, during the second year $6 million, and during the third year $2 million. It is completed at the end of the third year and thereafter incurs an annual operating c..
Define flow at a hydraulic jump (upstream and downstream) in terms of the types of flow and corresponding Froude number. What is the depth of water at each section (upstream and downstream) compared to critical depth
Determine the minimum necessary clearance height of the overpass and the resultant elevation of the bottom of the overpass over the PVI. (ignore the cross-sectional width of the overpass)
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