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NewsNatural-freyuency vibrating conveyors in modular design

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Natural-frequency vibrating conveyors in modular design

In both the chemical and the food industries, vibrating conveyors are required to handle high conveying capacities and often also considerable conveying distances for logistical tasks between the production and packaging stages. Freely configurable branching devices in the form of remote-controlled gates, flaps, or switches are necessary to achieve the desired distribution of the mass flows between various packaging lines. Right from the outset, a conveyor is expected to be sufficiently flexible to adapt to other conveying distances according to future requirements. These requirements are optimally met by natural-frequency vibrating conveyors in a modular design, in other words with interchangeable vibrator, spring, and intermediate discharge elements.

 

 

Figure 1

 

 

Figure 2

 

 

Figure 3

 

The working spring stations, which are designed as standard units, are mounted between the conveying trough and the countervibrating frame by means of bolt connections (Figure 1). The linkage is integrated in the working spring stations. A self-synchronizing, twin motor vibrating unit acts as the vibrator (Figure 2). This vibrator is insulated against structure-borne noise and characterized by practically silent operation.
It has neither a coupling nor a belt drive, endures continuous duty and requires almost no maintenance. The intermediate discharge points can be implemented with manually or pneumatically operated flaps or gates. Figure 3 shows a triple-track natural-frequency trough conveyor with six discharge flaps.

 

 

Figure 4

 

 

Figure 5

 

Two typical reference plants are shown in Figures 4 and 5. Figure 4 is a partial view of a vibrating conveyor system with an overall length of 120 m used to convey potato chips at a rate of 50 m3/h. Figure 5 depicts a 25 m long vibrating trough conveyor with several remote-controlled intermediate discharge points for conveying 60 m3/h of filler. The modular design of these natural-frequency conveyors also provided the inspiration for the vibration-assisted fluid-bed dryers shown in Figure 6.

 

 

Figure 6

 

 

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