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How A Bucket Elevator Operates

By Brenda Brooks


Gaining access to floors of very tall buildings has been facilitated by electric lifts. Furthermore, industrial operations that require the vertical transportation of loads also benefit from these machines. A typical bucket elevator stands out because it is designed to handle loads of different weights. It can also be applied in both domestic and industrial operations.

This machine comprises of long belts, strong chains, supporting frames and a terminal machinery. It relies on these components to operate effectively. Each component however serves a distinct role in the vertical transportation of loads. For example, terminal machinery facilitates loading and discharging of lumps. Belts on the other hand are long and strong to tie loads that are to be transported in a lift.

This machine can handle fine materials such as sand and cement. This is the reason why most construction sites have container lifts for precisely transporting concrete mixtures up and down a building. Engineers usually exercise caution when utilizing this machine to transport fine materials. To be precise, they ensure that containers are firm in structure because such loads have a tendency of spilling over when they are transported in a high speed.

There are three designs of this equipment used in industrial operations in all parts of the world. The first one is referred to centrifugal discharge because it uses force to transport loads. This design is widely used in agricultural activities such as irrigation of farms. Containers normally discharge a load easily courtesy of centrifugal force. This type of force is exerted at the center of gravity of any material that has weight.

The second style is called continuous discharge. Lifts that operate based on this style normally handle viscous materials. Continuous discharge is a term used in the engineering sector to refer to materials that are dense and have a slower velocity. Machines that handle such materials usually operate at a slower speed. The containers for carrying such materials also comprise of a triangulated cross sectional area. These containers are mounted close to belts used in tying a load.

Positive discharge also adds up as a design mechanism. It is basically applied in industrial sectors that produce light weight commodities. An example is food production firms. Another example is the candy industry that relies on positive discharge machines when candy undergoes processing. Machines used here are made up of two pins and longer chains for a load to swivel freely.

A similar device consisting of even steps is occasionally utilized as an electric lift. This device can be found in modern parking garages and construction sites. It is however deemed unsafe to utilize such lifts because they lack safety appliances. In addition, they are entirely made of metallic objects hence have a potential of causing physical injury to a person.

Positive, centrifugal and continuous discharge lifts are limited to certain conditions. For example, loads should have a lump size of one hundred units in millimeters and below. Loads are also supposed to be less sticky and have a constant temperature. This is because when lifts are transporting weights on a vertical axis, heat is normally generated and this may interfere with the loads.




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