What is a chippy hoist?
What is a chippy hoist?
Chippy – The hoist used for men and materials, rather than ore. Collar – The point at which a shaft intersects the surface or underground haulage level.
What is hoisting in mining?
In underground mining a hoist or winder is used to raise and lower conveyances within the mine shaft.
How does a friction hoist work?
When the sheave is driven by the motor, the friction force between friction lining and wire rope provides traction to lift the full-loaded skip from underground to the surface ground and the empty skip is lowered to load coal underground.
What is a headframe in mining?
So what is a headframe, anyway? Basically, it is the structural frame that sits above the entrance to an underground mine shaft. The headframe supports the hoist and cables which facilitate entrance into the shaft and can also lift out mined ore.
What is a hoist house?
The Hoist House was located directly below the Carpenter’s Shop and behind the Heilwood Inn (see map). Within its walls was an electric hoist system that brought loaded coal cars from either the Possum Glory #1 and # 1½ Mines, or after these two mines had been abandoned, the Penn Mary #1 Mine, a short distance away.
What is a cross cut in mining?
(1) An underground mining excavation driven between two mine shafts or tunnels when a deposit of a useful mineral is opened. (2) The term given to operations designed to join two underground mining excavations with each other or to connect an excavation with the surface.
What are two parts of lift that go down a mine called?
Answer: The sheave wheel is a pulley wheel that sits above the mine shaft. The hoist cable passes over the sheave wheel and then down the shaft of the mine. The sheave wheel reduces the sliding friction of the mine cable.
What is mining Skip?
Skip used to bring mined material to the surface of a mine shaft; manufactured in various sizes and designs for both vertical and incline shafts, including tipover models and bottom door dump models.
Why do the legs on a head frame?
Part 3: The head frame is the structure that supports the sheave wheel. The left “legs” of the head frame slope towards the hoist. This is due to the tension in the cable pulling the whole frame in that direction. The sloping legs prevent the head frame from toppling or falling over.
What are the differences between the two mine winches?
So what are the differences between the two? The biggest difference is that a hoist is designed to both lift and lower a load, whereas a winch is designed to pull a load – and depending on design, hold it in place.