National Institute of Technology 2006 B.E Chemical Engineering Mid-Term - or 202 - PARTICULATE TECHNOLOGY - Question Paper

N.I.T.K.
Time : one 1/2 hrs.

III SEM.B.TECH.-CHEMICAL ENGINEERING.


SURATHKAL

ans any 3 of the following:
1. How are particulate solids characterized? explain the development of Tylor
standard screens. provide importance of differential and cumulative screen
analysis. provide the formula for surface area of a mixture of solids based on
differential analysis. (10)
2. Discuss any 2 methods of storage and conveyance of solids in industry. (5+5)
3.a) List the size reduction equipments on the basis of feed size they handle, b) Derive the expression for critical speed of a ball mill. What is the operating
speed? elaborate cascading and cataracting in a ball mill. (4+4+2)
4.a) List the gas cleaning equipments used in industry,
b) define the working of a cyclone separators. (4+6)
5. Write notes any 2 of the following:
a) Size enlargement.
b) Equation for three laws of size reduction. (4+6)
c) Double cane classifier
d) Hydraulic Jig.
***

Earning:   Approval pending.