This article will introduce the advantages and disadvantages of the screw feeder and vibrating conveyor to you, let’s take a look together!

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Vibrating Conveyor Composition

The vibrating conveyor consists of two parts: a vibrating tank and a driving device; the vibrating tank can be customized as round tube type, square groove closed type, square groove open, V type, U type; the driving device can be divided into electromagnetic type, motor type, Crank arm linkage;

The working principle of vibration conveying: according to the excitation mechanism, it can be divided into two types: mechanical type and electromagnetic type. Among them, the mechanical type can be divided into two types: elastic connecting rod type and inertial (motor) type; according to the number of participating vibration components It can be divided into three types: single body, double body and multi-body.

The vibrating conveyor uses the reciprocating vibration of the conveying trough to convey the material. There are two ways for the material to be conveyed in the trough, which are sliding motion (partial metering) and throwing motion (partial conveying). As long as the appropriate kinematics is determined Parameters, such as amplitude, frequency, vibration direction angle and installation inclination angle, so that the material in the tank can be transported by sliding or throwing.

Screw feeder

The screw feeder is a new generation product that integrates the steady flow of powder materials, weighing measurement and quantitative control; it is suitable for continuous measurement and batching of powder materials in various industrial production environments; it adopts a number of advanced technologies, and the operation Reliable, high control precision; especially suitable for continuous metering and batching of powder materials in building materials, metallurgy, electric power, chemical industry and other industries.

Pros and cons of screw feeder and vibrating feeder

Pros of screw feeder

• The type of helical blades can vary and can be easily changed to suit various material types.
• The torque can be infinite and the speed can be adjusted quickly.
• Can be designed for easy cleaning applications without removing the entire unit from the production line.
• low power consumption

Cons of screw feeders

• Binder material and fines can build up inside the auger, restricting powder flow.
• Moving parts can cause additional wear and tear on equipment and the generation of metallic foreign objects.

Pros of Vibrating Feeder

• The vibration conveying structure is simple, easy to install, better airtight performance, and maintenance-free.
• There are no transmission parts in the vibrating tank, which is easy to clean, has no material residue, and will not produce secondary metal foreign objects. If a non-metallic wear-resistant coating is added to the inner wall of the tank, the possibility of metal friction can be completely eliminated.
• The electromagnetic type can start and stop frequently, and the performance is stable for a long time.
• The material conveyed by vibration moves forward in a loose state, and the conveyed material will not be squeezed or deformed.

Cons of Vibrating Conveyors

• Can only be conveyed horizontally or horizontally downwards
• Not suitable for materials with water content > 12% or viscous materials
• The entrance and exit cannot be hard-connected to other equipment

Main applications and uses of Vibrating Feeders

A vibrating feeder is just a tray that vibrates.
This vibration has a component such that the particles that are on the tray move with small jumps in the direction of the exit end of the tray itself.

Vibrating feeders are used for several purposes with the following being the most common:

Similar to a conveyor belt, it will transport the product in bulk from the feed end to the exit end of the tray.
As a pure conveyor, the vibrator is at a disadvantage compared with the belt, because the transport speed is slower, its length is limited due to structural reasons and although it is possible to transport by product vibration, high transport speed is lost.

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Advantages of using the vibrating feeder as a vibrating conveyor

The vibrating conveyor has its advantages as well, since it is a metal tray that is not susceptible to being torn or burned as a band and does not have the spills of product typical of the return section of the belts.

As a vibrating feeder

It is a conveyor in whose end or exit there is another machine to which it feeds

As a vibrating spreader

The vast majority of machines that make a classification (screens, Foucault separators, magnetic, optical, etc..) need to be fed throughout the functional width of the sorting machine itself.

These machines greatly reduce their performance if they are not fed in this way.

A vibrating feeder achieves that the bulk product extends occupying the entire width of the tray so that when pouring it on the sorting machine, it does so spread out in its width.
Specific geometries of the vibrating tray are also used to better achieve this distribution effect.

Vibrating feeder as a vibrating extractor

It has the function of extracting the product at the desired rate in a constant and uniform manner, when installed at the bottom of a hopper or silo, or inside a tunnel under a product stock.
This is very important at the beginning of any production line since it allows to introduce the product in the process with a uniform flow properly regulated, so that the successive machinery can function properly.

Feeder as a Grizzly

Sometimes the feeders can incorporate bars, perforated plate or other elements of classification by sizes forming a hybrid machine between a vibrating feeder and a screen that is usually called GRIZZLY.

Here are the main Rollier feeders and conveyors: