Hoist systems are extremely important in the mining industry and many others. There are a number of different hoists that have been designed and manufactured over the years.
Hoists are devices that are used for lifting or lowering a heavy load. This is done by using a drum or lift wheel that has rope or chain wraps attached to it. In the olden days hoist systems were operated manually. Although some manual hoists still exist it is more common to find electrical or pneumatically driven hoists. In many ways the hoist structure works like a pulley. A hoist was invented so as to move objects that would normally be extremely difficult to move, from point A to point B. This is mainly because the objects where extremely heavy. A hoist structure uses the basic principle of balancing forces in order for it to work and alleviate some of the weight from the object. Basically depending on the lifting medium and power type, will determine how productive the hoist system is.
As mentioned before there are three different types of hoist systems:
· Manual: the original hoist, before there was electricity, hoists used to work by having humans or animals haul the loads. This greatly helped to create the ancient buildings that are still standing today. It is advised that you do not use a manual hoist unless absolutely necessary.
· Electric: this system works by using electricity. It is as simple as hitting the switch and watching the load be transported to its desired destination. This became a necessity to increase productivity during the industrial era.
· Pneumatic: Pneumatic is the word used to describe the compressed air that is used to drive the motor. The compressed air will be transported to the motor making it run and subsequently able to lift the load. This system requires far less energy than the other two and is the hoist system of choice in most industries.
Hoists are a simple way of moving a heavy load which is why despite the advances in technology they are still an extremely viable “transportation” tool.
Why hoist systems are still used in mines
Although we are no longer experiencing the crazed gold rush of the past, mining is still a lucrative career for many people. A hoist is an extremely important part of the mining industry. The hoisting system has been used for many years in the mining industry and is still used today because it is one of the easiest, safest and fastest ways to transport loads. A properly functioning hoist will assist with the transportation of various loads to and from the underground mines. Depending on the size of the load will determine how many drums are needed to be used on the hoist system, this system has helped miners to increase their productivity.
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