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Modifications to the Existing Screen and Magnet in the Immensity Outloading Region for Personnel Access at British Sugar
:: 08 April, 2008
Robson Handling has installed conveyor systems at British Sugar's two processing plants in Norfolk. The company has provided a line to the new screening and bagging plant, incorporating 19 screw conveyors, an elevator and two enclosed, low-friction conveyors to Robson's own Airglide design. The Airglides transfer granulated sugar at from the existing screening area inside tubular gantries, which are mounted on two transfer towers.
The work also called for modifications to the existing screen and magnet in the bulk outloading area and provision of new platforming for personnel access.
At the Cantley site, Robson's task was to provide a new bulk outloading facility, complete with the steel-framed building to house it and a dedicated tanker access road.
The system accepts sugar from the existing export elevator via a new screw conveyor and transports it on a gantry-mounted Airglide belt conveyor to an elevator in the new outloading building.
Here, the sugar is lifted to the top floor and discharged through a screen, magnet, metal-check and sampler into a 65-tonne capacity storage bin mounted on load cells.
It is dispensed from the bin by a pneumatic slide valve through a bellows into the tanker waiting on the weighbridge below.
The system can handle up to 100 tonnes an hour, equivalent to 4000 tonnes in a full working week.
In total the Wissington and Cantley contracts are valued at more than GBP5 million.
Note for Conveyor System
A conveyor system is a common piece of mechanical handling equipment that moves materials from one location to another. Conveyors are especially useful in applications involving the transportation of heavy or bulky materials. Conveyor systems allow quick and efficient transportation for a wide variety of materials, which make them very popular in the material handling and packaging industries. Many kinds of conveying systems are available, and are used according to the various needs of different industries.
Conveyor systems are used widespread across a range of industries due to the numerous benefits they provide.
Conveyors are able to safely transport materials from one level to another, which when done by human labour would be strenuous and expensive.
They can be installed almost anywhere, and are much safer than using a forklift or other machine to move materials.
They can move loads of all shapes, sizes and weights. Also, many have advanced safety features that help prevent accidents.
There are a variety of options available for running conveying systems, including the hydraulic, mechanical and fully automated systems, which are equipped to fit individual needs.
Conveyor systems are commonly used in many industries, including the automotive, agricultural, computer, electronic, food processing, aerospace, pharmaceutical, chemical, bottling and canning, print finishing and packaging. Although a wide variety of materials can be conveyed, some of the most common include food items such as beans and nuts, bottles and cans, automotive components, scrap metal, pills and powders, wood and furniture and grain and animal feed. Many factors are important in the accurate selection of a conveyor system. It is important to know how the conveyor system will be used beforehand. Some individual areas that are helpful to consider are the required conveyor operations, such as transportation, accumulation and sorting, the material sizes, weights and shapes and where the loading and pickup points need to be.
Note for Elevator
An elevator or lift is a transport device used to move goods or people vertically. Languages other than English may have loanwords based on either elevator or lift. Because of wheelchair access laws, elevators are often a legal requirement in new buildings with multiple floors.
Elevators began as simple rope or chain hoists. An elevator is essentially a platform that is either pulled or pushed up by a mechanical means. A modern day elevator consists of a cab (also called a "cage" or "car") mounted on a platform within an enclosed space called a shaft, or in Commonwealth countries called a "hoistway". In the past, elevator drive mechanisms were powered by steam and water hydraulic pistons. In a "traction" elevator, cars are pulled up by means of rolling steel ropes over a deeply grooved pulley, commonly called a sheave in the industry. The weight of the car is balanced with a counterweight. Sometimes two elevators always move synchronously in opposite directions, and they are each other's counterweight.
The friction between the ropes and the pulley furnishes the traction which gives this type of elevator its name.
Hydraulic elevators use the principles of hydraulics to pressurize an above ground or in-ground piston to raise and lower the car. Roped Hydraulics use a combination of both ropes and hydraulic power to raise and lower cars. Recent innovations include permanent earth magnet motors, machine room-less rail mounted gearless machines, and microprocessor controls.
Which technology is used in new installations depends on a variety of factors. Hydraulic elevators are cheaper, but installing cylinders greater than a certain length becomes impractical for very high lift hoistways. For buildings of much over seven stories, traction elevators must be employed instead. Hydraulic elevators are usually slower than traction elevators.
Elevators are a candidate for mass customization. There are economies to be made from mass production of the components, but each building comes with its own requirements like different number of floors, dimensions of the well and usage patterns.
Elevators are characterized as being extremely safe. Their safety record of moving millions of passengers every day, with extremely low rate of incident, is unsurpassed by any other vehicle system. Even so, fatalities due to malfunction have been known to occur on occasion. A certain number of passengers do die every year in elevator-related incidents. In 1998, in the United States, it was reported that of the estimated 120 billion rides per year in the approximately 600,000 elevators in the U.S., 10,000 people wound up in the emergency room because of elevator-related accidents.