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Bucket Elevators
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Over 50 Years Experience in Bucket Elevator Design & Supply! FEECO's name is known world wide in the design and manufacture of bucket elevators. Since 1951, FEECO has developed extensive experience in bulk material handling equipment manufacturing that is backed by the strength of our engineering and design departments and our manufacturing capabilities.
FEECO offers a variety of designs and sizes of bucket elevators that can handle materials that range from dry dusty powders such as fly ash to heavy materials such as iron ore pellets. Generally, bucket elevators are not suited for wet, sticky materials, or materials that are stringy or tends to mat or agglomerate. Not sure if your material can be handled in an elevator? Contact us, will be more than happy to help you. Bucket elevators can be ordered in a number of configurations, including centrifugal belt, centrifugal chain, continuous belt, continuous single chain and continuous double chain models.
The centrifugal style elevator operates at higher speeds to throw the material by centrifugal action out of the buckets into the discharge spout as the buckets pass over the head pulley/sprocket. The buckets are spaced in wider intervals to prevent discharge interference from the proceeding bucket and to assure maximum fill of the buckets at the boot end while moving at higher speed.
Continuous bucket elevators are designed to handle friable, fragile materials to minimize product degradation or damage or to handle sluggish or abrasive material. They are also used to convey light free-flowing matter where aeration of the material must be avoided. The continuous style elevator operates at a lower speed to minimize breakage of friable materials. The buckets are closely spaced on the belt or chain to allow the material to flow over the backside of the proceeding bucket, whose extended sides form a chute to guide the material into the discharge spout.
A bucket elevator, is a mechanism for hauling flowable bulk materials vertically.
Bucket elevators are designed to move flowing powders or bulk solids vertically. Bucket elevators use an endless belt or chain and have a series of buckets attached to it. Bulk material is fed into an inlet hopper. Buckets (or cups) dig into the material and convey it up and over the head sprocket/pulley, and then throw the material out a discharge throat.
It consists of:
Bucket elevators are not self-feeding, and are fed at a controlled rate. The buckets are usually where the chain or belt path is vertical or steeply inclined in a single plane. The buckets are returned back down to a tail pulley or sprocket at the bottom. There are four broad classifications of bucket elevators: centrifugal, continuous, positive, and internal discharge. The most commonly used are the centrifugal and continuous discharge elevators.
Centrifugal bucket elevators are most commonly used to convey all free-flowing, powdered bulk solids such as grains, animal feed, sand, minerals, sugar, aggregates, chemicals, etc. They operate at high speeds, which throw the materials out the buckets into discharge throats by centrifugal force. Centrifugal Discharge Bucket Elevator can have buckets mounted at intervals on chain or belt. Centrifugal Discharge Bucket Elevators are used to handle bulk materials which can be picked up by the spaced buckets as they pass under the boot wheel and discharge by centrifugal forces as the buckets pass over the head.
A centrifugal discharge elevator may be vertical or inclined. Vertical elevators depend entirely on the action of centrifugal force to get the material into the discharge chute and must be run at speeds relatively high. Inclined elevators with buckets spaced apart or set close together may have the discharge chute set partly under the head pulley. Since they don't depend entirely on the centrifugal force to put the material into the chute, the speed may be relatively lower.
Continuous bucket elevators are used to handle friable, fragile materials because they minimize product damage or are used to handle light fluffy materials where aeration of the product must be avoided. Continuous bucket elevators may be used to handle the same kinds of material as the centrifugal type, however they are recommended especially for handling materials that are difficult to pick up in a boot or friable materials. Continuous bucket elevators have buckets spaced continuously on chain or belt and operate at slower speeds. The continuous bucket placement allows the force of gravity to discharge their load onto the inverted front of the proceeding bucket. The bucket then guides that material into the discharge throat on the descending side of the elevator.