enugu new limestone bucket elevator manufacturer

enugu new limestone bucket elevator manufacturer

Vertical handling is a necessity in the aggregate industry, transporting material seamlessly throughout a processing facility despite the various heights at which it must be delivered. Throughout aggregate processing facilities, material is elevated for feeding weigh hoppers, loading rail cars, transporting material to various processing stages, and more

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Hot Bucket Elevator Brief Introduction

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While troughed inclined conveyors are often used for elevating applications, this type of conveyor requires a specific amount of floor space per rise in unit of elevation. The amount of space required is dependent upon the angle of lift, as shown in the diagram below.

Bucket elevators rest vertically on a base, rising straight up to the required height. This allows smaller facilities to vertically transport their material to greater heights with only a minimal ground footprint.  

bucket elevators: the choice for vertical aggregate handling

Dust is a common challenge among aggregate operations, particularly when it comes to handling and moving around materials. Depending on the material, fugitive dust may result in a hazardous work environment, premature equipment wear, or unacceptable product loss.

As a completely enclosed system, bucket elevators are ideal for handling dusty aggregates, containing dust and mitigating any associated issues. When looking to minimize fugitive dust, care should be taken to ensure the selected elevator is fully welded to prevent any points of escape. Dust pick-off points can be added to keep a slight negative pressure inside the casing, allowing dust to be extracted and collected, while minimizing dust within the elevator casing

A number of materials fall into the aggregates category and bucket elevators can handle them all, though materials with a sticky quality should be avoided, as they can cause issues on discharge and with internal material buildup.

Due to the level of duty the equipment must endure, the aggregate industry generally demands a higher caliber of equipment. For this reason, it’s important to select a bucket elevator manufacturer with an understanding of the unique challenges that aggregates present; equipment should not only be built for reliability, but for longevity as well.

bucket elevators: the choice for vertical aggregate handling

Continuous discharge bucket elevators operate at a slower speed and do not utilize a “throwing” action on aggregates. This elevator type is preferred when handling more fragile materials, or those that are prone to aeration.

Centrifugal discharge elevators move material at higher speeds. This elevator type uses centrifugal force to “throw” material from the buckets at discharge, while a digging action loads the elevators at the inlet.

Granular free-flowing materials are typically handled with centrifugal discharge elevators, because the material lends well to the digging action at loading, and efficiently discharges at the higher speed.

bucket elevators: the choice for vertical aggregate handling

For most aggregate applications, the chain-type elevator is selected. When utilizing the chain type, higher capacities can be achieved by utilizing a double chain configuration over a single chain design.

The belt-style elevators are typically a less costly option, but are generally only suitable for free-flowing granular materials (almost all sand handling elevators are of the centrifugal discharge belt style)

Material temperature also factors into the choice between belt and chain type elevators. Standard belts are available for up to 200° F, with upgrades available for up to 400° F. Beyond this, belts are not usually recommended

bucket elevators: the choice for vertical aggregate handling

Aggregate size and the type of elevator chosen (centrifugal or continuous) also impact the choice of bucket style used (of which there are many). Elevator buckets are available in a variety of capacities and materials of construction to tailor bucket performance to the material being handled.

As an example, nylon buckets are frequently used for centrifugal discharge elevators handling sand, because of their wear and release properties (however, they are not necessarily a fit for high-temperature applications). Ductile iron is another common material of construction used with centrifugal discharge elevators.

Continuous discharge style elevators tend to use fabricated steel buckets, which are available in numerous sizes and plate thicknesses. Abrasion-resistant construction, wear lips, etc., can also be utilized.

bucket elevators: the choice for vertical aggregate handling

The abrasivity of a material must also be factored into the design. Materials that are highly abrasive may require wear areas to be reinforced with additionally heavy-duty construction, or may require parts, or all of the unit, to be constructed from abrasion-resistant materials.  

While in some cases, the selection of the proper bucket elevator configuration for a given aggregate may be clear, this is not always the case. With significant versatility and many different options available, bucket elevators provide the best handling solution possible when designed around the unique parameters of the specific application. This often requires expertise to define the optimal solution.

Bucket elevators provide an essential handling solution for high-capacity vertical conveying in the aggregate industry, particularly when spatial restrictions exist. Bucket elevators can offer improved vertical handling and valuable dust control, but should be designed around the given application, with aggregate size, capacity, and material abrasivity being critical design considerations.

bucket elevators: the choice for vertical aggregate handling

FEECO has been a preferred supplier of custom bucket elevators for the aggregate industry since 1951. Our bucket elevators are designed to be robust and built to last. For more information, contact us today!

bucket elevators - aumund

Vertical handling is a necessity in the aggregate industry, transporting material seamlessly throughout a processing facility despite the various heights at which it must be delivered. Throughout aggregate processing facilities, material is elevated for feeding weigh hoppers, loading rail cars, transporting material to various processing stages, and more

While troughed inclined conveyors are often used for elevating applications, this type of conveyor requires a specific amount of floor space per rise in unit of elevation. The amount of space required is dependent upon the angle of lift, as shown in the diagram below.

bucket elevators - aumund

Bucket elevators rest vertically on a base, rising straight up to the required height. This allows smaller facilities to vertically transport their material to greater heights with only a minimal ground footprint.  

Dust is a common challenge among aggregate operations, particularly when it comes to handling and moving around materials. Depending on the material, fugitive dust may result in a hazardous work environment, premature equipment wear, or unacceptable product loss.

As a completely enclosed system, bucket elevators are ideal for handling dusty aggregates, containing dust and mitigating any associated issues. When looking to minimize fugitive dust, care should be taken to ensure the selected elevator is fully welded to prevent any points of escape. Dust pick-off points can be added to keep a slight negative pressure inside the casing, allowing dust to be extracted and collected, while minimizing dust within the elevator casing

bucket elevators - aumund

A number of materials fall into the aggregates category and bucket elevators can handle them all, though materials with a sticky quality should be avoided, as they can cause issues on discharge and with internal material buildup.

Due to the level of duty the equipment must endure, the aggregate industry generally demands a higher caliber of equipment. For this reason, it’s important to select a bucket elevator manufacturer with an understanding of the unique challenges that aggregates present; equipment should not only be built for reliability, but for longevity as well.

Continuous discharge bucket elevators operate at a slower speed and do not utilize a “throwing” action on aggregates. This elevator type is preferred when handling more fragile materials, or those that are prone to aeration.

bucket elevators - aumund

Centrifugal discharge elevators move material at higher speeds. This elevator type uses centrifugal force to “throw” material from the buckets at discharge, while a digging action loads the elevators at the inlet.

Granular free-flowing materials are typically handled with centrifugal discharge elevators, because the material lends well to the digging action at loading, and efficiently discharges at the higher speed.

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