conveyor belt

更新时间:2023-06-21 02:41:59 阅读：评论：0

Conveyor belt

Point of contact between a power transmission belt and its pulley. A conveyor belt us a wide belt and pulleys and is supported by rollers or a

flat pan along its path.

The conveyor structures contain belts for moving bulk sulfur from railcars to storage piles

and from the piles to ships.

A conveyor belt (or belt conveyor ) consists of two or more pulleys,

with a continuous loop of material - the conveyor belt - that rotates

about them. One or both of the pulleys are powered, moving the belt

国外电影明星and the material on the belt forward. The powered pulley is called the

drive pulley while the unpowered pulley is called the idler. There are

two main industrial class of belt conveyors; Tho in general

material handling such as tho moving boxes along inside a factory

and bulk material handling such as tho ud 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 tho in grocery stores.

The belt consists of one or more layers of material they can be made

out of rubber. Many belts in general material handling have two layers.

An under layer of material to provide linear strength and shape called a

carcass and an over layer called the cover. The carcass is often a cotton

or plastic web or mesh. The cover is often various rubber or plastic永远英文

compounds specified by u of the belt. Covers can be made from

more exotic materials for unusual applications such as silicone for heat

or gum rubber when traction is esntial.Material flowing over the belt may be weighed in transit using a

beltweigher. Belts with regularly spaced partitions, known as elevator

belts , are ud for transporting loo materials up steep inclines. Belt Conveyors are ud in lf-unloading bulk freighters and in live bottom trucks. Conveyor technology is also ud in conveyor transport such as moving sidewalks or escalators, as well as on many manufacturing asmbly lines. Stores often have conveyor belts at the check-out counter to move shopping items. Ski areas also u 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 us reciprocating slats to move cargo, and roller conveyor system, which us a ries of powered rollers to convey boxes or pallets.Belt conveyor systems

Conveyors are ud as components in automated distribution and warehousing. In combination with computer controlled pallet handling equipment this allows for more efficient retail, wholesale, and ma

nufacturing 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 expen.

Rubber conveyor belts are commonly ud to convey items with irregular bottom surfaces, small items that would fall in between rollers (e.g. a sushi conveyor bar), or bags of product that would sag between rollers. Belt conveyors are generally fairly similar in construction consisting of a metal frame with rollers at either end of a flat metal bed. The belt is looped around each of the rollers and when one of the rollers is powered (by an electrical motor) the belting slides across the solid metal frame bed, moving the product. In heavy u applications the beds which the

英语作文常用句子belting is pulled over are replaced with rollers. The rollers allow weight to be conveyed as they reduce the amount of friction generated from the heavier loading on the belting. Belt conveyors can now be manufactured with curved ctions which u tapered rollers and curved belting to convey products around a corner. The conveyor systems are commonly ud in postal sorting offices and airport baggage handling systems.

Belt conveyors are the most commonly ud powered conveyors becau they are the most versatil

e and the least expensive. Product is conveyed directly on the belt so both regular and irregular shaped objects, large or small, light and heavy, can be transported successfully. The conveyors should u only the highest quality premium belting products, which reduces belt stretch and results in less maintenance for tension adjustments. Belt conveyors can be ud to transport product in a straight line or through changes in elevation or direction. In certain applications they can also be ud for static accumulation or cartons.

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Belt Conveyor systems at a Packing Depot Baggage Handling Belt Conveyor systems

Snake sandwich belt conveyor

A sandwich belt conveyor us two conveyor belts, face-to-face, to gently but firmly contain the product being carried, hence making steep incline and even vertical-lift runs easily achievable. The Snake Sandwich Belt Conveyor was created in 1979. The study was conceived by Joph A. Dos Santos, P.E., President of Dos Santos International, with the help of a grant from the U.S. Bureau of Mines. The study was to develop a means of moving and elevating large quantities of bulk materials,

including coar products such as rocks, aggregate, coal, etc. at the steepest possible inclines. The intent was to u only existing and generally available hardware in order to achieve the most economically feasible and easily maintained steep-angle conveyor design. Snake Conveyors are available in widely ranging profiles of C and S Shape. In any ca, a long bottom belt approach is possible to the sandwich entrance, and discharge may be on the high incline or may be after the extension of the carrying belt beyond the mouth of the sandwich.

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Snake Sandwich conveyors offer veral advantages. First unlimited conveying capacity, a system suitable for the most rugged mine applications and gentle on nsitive 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 ensures economy and fast delivery of replacement parts.

singlesLong belt conveyorsglass是什么意思

The longest belt conveyor system in the world is in Western Sahara. It is 100 km long, from the phosphate mines of Bu Craa to the coast south of El-Aaiun.

The longest conveyor system in an Airport is the Dubai International Airport baggage handling system at 92km. It was installed by Siemens and commissioned in 2008, and has a combination of traditional belt conveyors and tray conveyors.

The longest single belt conveyor runs from Meghalaya in India to Sylhet in Bangladesh. It is about 17 km long and conveys limestone and shale at 960 tons/hr, from the quarry in India to a cement factory in Bangladesh (7 km long in India and 10 km long in Bangladesh). The conveyor was engineered by AUMUND France and Larn & Toubro. The conveyor is actuated by 3 synchronized drive units for a total power of about 1.8 MW (2 drives at the head end in Bangladesh and 1 drive at the tail end in India). The conveyor belt was manufactured in 300-meter lengths on the Indian side and 500-meter lengths on the Bangladesh side, and was installed onsite by NILOS India. The idlers, or rollers, of the system are unique in that they are designed to accommodate both horizontal and vertical curves along the terrain. Dedicated vehicles were designed for the maintenance of the conveyor, which is always at a minimum height of 5 meters above the ground to avoid being flooded during monsoon periods.

History

Primitive conveyor belts were ud since 19th century. In 1901, Sandvik invented and started the production of the Steel Conveyor belts. In 1905 Richard Sutcliffe invented the first conveyor belts for u in coal mines which revolutionized the mining industry. In 1913, Henry Ford introduced conveyor-belt asmbly lines at Ford Motor Company's Rouge factory, in Dearborn Michigan. In 1972, the French society REI created in New Caledonia the then longest straight-belt conveyor in the world, at a length of 13.8 km. Hyacynthe Marcel Bocchetti was the concept designer.

short是什么意思Popular culture

Many video games feature conveyor belts, such as Donkey Kong (1981) and Half-Life (1998).

The Gladiators 1990s TV ries featured The Travelator, a moving walkway (a type of conveyor belt) in its obstacle cour. A 2008 MythBusters episode "Airplane on a Conveyor Belt" featured a conveyor belt regarding the myth that a plane cannot take off while sitting on a conveyor belt moving in the opposite direction.