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?
Flashcards
Belt Conveyors Primary Use
Belt Conveyors Primary Use
Handling grains.
Problem with heavy materials
Problem with heavy materials
Carrying heavier materials led to idler wear.
Increase Belt Capacity
Increase Belt Capacity
Troughing the belt or fitting sidewalls.
Large-Scale Belt Conveyor Example
Large-Scale Belt Conveyor Example
Signup and view all the flashcards
Impact Idler Function
Impact Idler Function
Signup and view all the flashcards
Self-Adjusting Idler Suspension
Self-Adjusting Idler Suspension
Signup and view all the flashcards
Steel Idler Use
Steel Idler Use
Signup and view all the flashcards
Return Idler Contact
Return Idler Contact
Signup and view all the flashcards
Idler Spacing
Idler Spacing
Signup and view all the flashcards
Factors Affecting Belt Tension
Factors Affecting Belt Tension
Signup and view all the flashcards
Troughing idler set is too close
Troughing idler set is too close
Signup and view all the flashcards
Troughed to Flat Belt Transition
Troughed to Flat Belt Transition
Signup and view all the flashcards
Conveyors vs. Trucks (Long Distances)
Conveyors vs. Trucks (Long Distances)
Signup and view all the flashcards
Traditional Conveyor Disadvantage
Traditional Conveyor Disadvantage
Signup and view all the flashcards
Automation Potential
Automation Potential
Signup and view all the flashcards
Conveyor Availability
Conveyor Availability
Signup and view all the flashcards
Belt Conveyor Components
Belt Conveyor Components
Signup and view all the flashcards
Belt conveyor system design
Belt conveyor system design
Signup and view all the flashcards
Conveyor Belt Carcass
Conveyor Belt Carcass
Signup and view all the flashcards
Carcass Material Choice
Carcass Material Choice
Signup and view all the flashcards
Conveyor Belt Covers
Conveyor Belt Covers
Signup and view all the flashcards
Breakers in Conveyor Belts
Breakers in Conveyor Belts
Signup and view all the flashcards
Increase Carrying Capacity on Inclines
Increase Carrying Capacity on Inclines
Signup and view all the flashcards
Steep Incline Conveyors
Steep Incline Conveyors
Signup and view all the flashcards
Joining Conveyor Belt Ends
Joining Conveyor Belt Ends
Signup and view all the flashcards
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.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
