basics of conveyor belt

1. PRESENTED BY-
ANKIT SUKHWAL
B.E Final year
C.T.A.E. Udaipur
Guided by-
Dr. S. Jindal Sir

2.  Conveyor belts are used in a wide variety of
material transport applications such as
manufacturing, food processing, and heavy
industry.
 Belt- are the most common type of conveyors
and are very versatile.

4.  The belt consists of one or more layers of
material.
◦ An under layer-to provide linear strength and shape
called a carcass(polyester, nylon and cotton)
◦ An over layer called the cover. (rubber or plastic
compounds)

5.  Belts are typically made from cotton, canvas,
Kevlar, nitrile, nylon, polyester,
polyurethane/urethane, PVC, rubber, silicone,
steel cord, Teflon, wire mesh or weave.
Rubber Interply
Top Cover
Bottom Cover

7. The actual belt of a system is determined on
what the conveyor is going to be used for.
Items to consider when choosing a belt.
 Size of items being moved
 Weight of items
 shape of items
This will help decide what belt to use so
coefficients of friction can stay low so the
motors wont be over worked.

8.  Flexibility
 Transverse rigidity
 Low mass per unit length
 High strength
 Simplicity and inexpensive
 Longer life
 Should not stretch under normal working
stresses ,i.e., low relative elongation.
 Wear resistant
 Fire resistant

9.  Belt speed
 Belt width
 Absorbed power
 Gear box selection
 Drive pulley shaft

10. • Agriculture
• Construction - heavy building materials
• Food and beverage processing
• Forestry - logging, sawmill, paper pulp, etc.
• Mining and quarrying
• Factory production line

12.  Belt conveyor can be used for abrasive, wet,
dry, sticky or dirty material.
 Higher capacity can be handled than any
other form of conveyor at a considerably
lower cost per tonne kilometre.
 Longer distances can be covered more
economically.
 It can be horizontal, incline or decline or
combination of all.

13.  The belt needs higher initial tension.
 Higher elongation of the belt (4% elongation
may take place at the working load).
 Conveying of sticky material is associated
with problems of cleaning and discharge
causing poor productivity.

14.  Width of belt (mm)
 Type of carcass (fabrics)
 Rated breaking strength (n/mm)
 Number of fabric plies
 Top and bottom cover thickness (mm)

15. Apron Feeder
Scalping grizzly
feeder
(Primary Crusher Discharge)Vibrating
screen
(Fine
s)
Middlings
Gyratory
crusher
To Tert.
conv

16.  Belt Conveyor systems can improve efficiency
and help to reduce repetitive lifting and
carrying.
 Many industries use Belt conveyor systems to
transport raw materials and products through
the stages of a process or to and from
storage.

17.  Conveyor Handbook by Fenner Dunlop (Jun 2009)
 Materials Handling Handbook by David E. Mulcahy ,
McGraw-Hill, 1999
 http://intinno.iitkgp.ernet.in/courses/951/wfiles/1
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