LECTURE NOTES 06/08 “TRANSPORT AND CONVEYING PROCESS” SAIFUL IRWAN ZUBAIRI PMIFT, Grad B.E.M. B. Eng. (Chemical-Bioprocess) (Hons.), UTM M. Eng. (Bioprocess), UTM ROOM NO.: 2166, CHEMISTRY BUILDING, TEL. (OFF.): 03-89215828, FOOD SCIENCE PROGRAMME, CENTRE OF CHEMICAL SCIENCES AND FOOD TECHNOLOGY, UKM BANGI, SELANGOR 28 MAY 2008
There are two main industrial classes of belt conveyors; Those in general material handling such as those moving boxes along inside a factory and bulk material handling such as those used to transport industrial and agricultural materials, such as grain, coal, ores, etc. generally in outdoor locations .
Generally companies providing general material handling type belt conveyors do not provide the conveyors for bulk material handling.
In addition there are a number of commercial applications of belt conveyors such as those in grocery stores.
CONVEYOR BELT “ Point of contact between a power transmission belt and its pulley. A conveyor belt uses a wide belt and pulleys and is supported by rollers or a flat pan along its path”
Stores often have conveyor belts at the check-out counter to move shopping items.
Ski areas also use conveyor belts to transport skiers up the hill.
A wide variety of related conveying machines are available, different as regards principle of operation, means and direction of conveyance = including screw conveyors, vibrating conveyors, pneumatic conveyors, the moving floor system, which uses responding boards to move cargo, and roller conveyor system, which uses a series of powered rollers to convey boxes or pallets.
Conveyors are used as components in automated distribution and warehousing.
In combination with computer controlled pallet handling equipment this allows for more efficient retail, wholesale, and manufacturing distribution.
It is considered a labor saving system that allows large volumes to move rapidly through a process, allowing companies to ship or receive higher volumes with smaller storage space and with less labor expense.
Snake Sandwich conveyors offer several advantages.
First unlimited conveying capacity, a system suitable for the most rugged mine applications and gentle on sensitive and friable materials, high availability and low operating and maintenance costs, smooth surfaced belts allowing continuous belt cleaning by scrapers and plows.
This also facilitates intermediate material discharge by belt plows, as appropriate, before and/or beyond the sandwiched part of the Snake profile.
All conventional conveyor hardware insures economy and fast delivery of replacement parts.
Pneumatic conveyors are either carrier systems or dilute-phase systems; carrier systems simply push items from one entry point to one exit point, such as the money exchanging tubes used at a bank drive-thru window.
Dilute-phase systems use push/pull pressure to guide materials through various entry and/or exit points.
Three basic systems that are used to generate high velocity air stream: