Podcast
Questions and Answers
What is the primary application of belt conveyors during the past 200 years?
What is the primary application of belt conveyors during the past 200 years?
- Carrying diverse products
- Handling grains (correct)
- Transporting heavy materials
- Mining and quarrying industry use
What were the problems caused by carrying heavier materials on belt conveyors?
What were the problems caused by carrying heavier materials on belt conveyors?
- Overheating of the motor
- Wearing of the idlers (correct)
- Damage to the terminal pulleys
- Splitting of the conveyor belt
What is a development of the basic configuration of belt conveyors to increase carrying capacity?
What is a development of the basic configuration of belt conveyors to increase carrying capacity?
- Decreasing the motor power
- Reducing the length of the belt
- Troughing the belt or fitting sidewalls (correct)
- Removing the protection devices
What is a remarkable example of a large-scale belt conveyor?
What is a remarkable example of a large-scale belt conveyor?
What are impact idlers used for?
What are impact idlers used for?
What are self-adjusting troughing idlers suspended on?
What are self-adjusting troughing idlers suspended on?
What are steel idlers usually used for?
What are steel idlers usually used for?
What are return idlers in contact with?
What are return idlers in contact with?
What is the required spacing of the idlers on the carrying side a function of?
What is the required spacing of the idlers on the carrying side a function of?
What affects the belt tension and driving power requirements?
What affects the belt tension and driving power requirements?
What happens if the last troughing idler set is positioned too close before the discharge point?
What happens if the last troughing idler set is positioned too close before the discharge point?
What is the recommended transition from troughed belt to flat belt for a 10° troughing angle?
What is the recommended transition from troughed belt to flat belt for a 10° troughing angle?
Why are conveyors often considered as an alternative to trucks over long distances?
Why are conveyors often considered as an alternative to trucks over long distances?
What are the traditional disadvantages of conveyors?
What are the traditional disadvantages of conveyors?
What is the potential for varying degrees of automation with conveyors?
What is the potential for varying degrees of automation with conveyors?
What are conveyors often able to achieve in terms of availability?
What are conveyors often able to achieve in terms of availability?
What are the key components of belt conveyors?
What are the key components of belt conveyors?
What factors do mining engineers consider when designing belt conveyor systems?
What factors do mining engineers consider when designing belt conveyor systems?
What is the function of the carcass in a conveyor belt?
What is the function of the carcass in a conveyor belt?
What determines the choice of carcass material for a conveyor belt?
What determines the choice of carcass material for a conveyor belt?
What are the covers of conveyor belts made of?
What are the covers of conveyor belts made of?
What is the purpose of adding additional layers of fabric called breakers to conveyor belts?
What is the purpose of adding additional layers of fabric called breakers to conveyor belts?
How can the carrying capacity of a belt conveyor be increased and material slippage on inclines be reduced?
How can the carrying capacity of a belt conveyor be increased and material slippage on inclines be reduced?
What enables conveyors to operate on steep inclines?
What enables conveyors to operate on steep inclines?
How can the ends of a conveyor belt be joined together?
How can the ends of a conveyor belt be joined together?
Study Notes
Belt Conveyor Systems: Key Components and Considerations
- A 15-km belt conveyor in a UK coalfield can convey 3,200 tonnes/hr of coal at speeds of up to 8.4 m/s.
- A 3 m wide Japanese conveyor, running at 5.3 m/s, has conveyed sand and rock at a rate of 30,000 tonnes/hr.
- Components of belt conveyors include belt, idlers, drive arrangements, power unit, loading and discharge arrangements, and belt cleaners.
- When designing belt conveyor systems, mining engineers calculate belt tensions, take up force, idler spacing, and required motor horsepower.
- Most conveyors use a conventional flat belt, but special forms are available for specific applications.
- The carcass of a conveyor belt consists of a core, carrying the tensile force, and a cover to protect it from damage.
- The choice of carcass material depends on factors like maximum tension in the belt, impact forces, and flexibility required.
- The cover of the belt is made of natural or synthetic rubber, selected based on the nature of the conveyed material and environmental factors.
- Additional layers of fabric called breakers may be added to increase adhesion, impact resistance, and cushioning.
- Texturing the surface of the belt with cleats or flights can increase the carrying capacity and reduce material slippage on inclines.
- Conveyors with sidewalls and transverse slats enable operation on steep inclines.
- Jointing the ends of a conveyor belt can be done through vulcanized splicing or mechanical fasteners, each with its own advantages and limitations.
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Description
Test your knowledge of belt conveyor systems with this quiz on key components and design considerations. Learn about belt tensions, idler spacing, carcass materials, and more essential aspects of conveyor systems used in mining and material handling.
