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Vibrating / Dosing feeder

VibRinne_Farbe Weiß gebrochen_

Vibrating / Dosing feeder:
Continuous supply of bulk materials, exact batch supply down to a few grams

Volkmann vibrating feeder is suitable for a wide range of applications. It is ideal when automating a feeding process in combination with a vacuum conveyor and a complete with a buffer module and level probe.

Depending on the application you can use an open vibrating feeder or a closed hygienic dosing tube. Both variations are easy to clean.

Together with a vacuum conveyor and a material buffer it is possible to offer different types of weighing. For example, negative weighing or rather dosing with a vibrating feeder can achieve a batch accuracy of down to 1 g per cycle depending on the material.

It is possible to convert a discontinuous material transfer process into a continuous feeder with rates up to 1000 kg per hour.

Further information can be found in our leaflet.

Characteristics:

– Continuous material feed
– Accuracy down to 1 g
(depending on the material)
– More effective and gentle operation
– Easy to clean
– For use in Ex-Zones
– Low-wear
– Stainless steel AISI 304 or AISI 316
(product contacted parts)

Variations:

– Open/ closed U-profile dosing tray
– Closed pipe-profile dosing tube
– Clamp connections at the inlet and outlet
– Length and width of the dosing tube and
tray are variable

Options:

– Weighing module
– Dustfree design
– Integrate with sieving
– Quick change sieve insert

Volkmann Empty Sack Compactor

Volkmann Empty Sack Compactor

Volkmann emptying station for bagged goods

  • with partly automated container feeding and dust extraction
  • optimised for the use with vacuum conveyors
  • NEW: Now also with empty sack compactor

The dust-free handling of solids is nowadays more than ever in the focus when processing bulk materials. Occupational safety and hygiene requirements must be observed, explosion protection according to ATEX must be adhered to. Volkmann solutions offer safety in the handling of bulk materials. The range of the RNT product loading stations for bagged goods was supplemented by an empty sack compactor which includes a dust free connection to the product loading station and shares its integrated dust extraction.

The emptied containers/sacks are collected in foil and mechanically compacted. Depending on the container size, the collection volume of the empty sack compactor is sufficient for ca. 40 – 100 units. The product loading station and empty sack compactor are entirely made of stainless steel and are completely manufactured in our company. We happily make custom systems. Volkmann develops imaginative solutions for the handling of various bulk materials for the chemical, pharmaceutical and food industry.

  • Vacuum conveyors: Designs according to industry, hygiene and pharmaceutical/eGMP standards
  • Product loading stations for sacks, big bags, drums, IBCs
  • Weighing and dosing systems for bulk material handling
  • Stationary and mobile lifting columns for vacuum conveyors
  • Consulting, planning and manufacturing from a single source

Intelligent Compact Control for Vacuum Conveyors

Intelligent Compact Control for Vacuum Conveyors

With the new ET-Advanced, Volkmann provides the users of vacuum conveyors with a modern and intelligent electropneumatic compact control. The control ensures the smooth operation of the vacuum conveying system and evaluates thereby up to four incoming signals from level sensors and one local start signal.

Operating mode 1:

Automatic suction cycle, determination of the filling level in the vacuum conveyor, adjustment of the suction time no longer necessary

Operating mode 2:

Monitoring of receiving container, automatic operation of the vacuum conveyor, feeding of material into receiving vessel with min or min-max sensors.

Operating mode 3: Monitoring of collection point

Operation of the vacuum conveyor only in presence of material at the collection point, status signal in case of fault

Adjustable times are:

  • Discharging time vacuum pump start delay
  • Suction time
  • Pipe emptying time (pipe emptying valve in conveyor suction line)
  • Delay of filter cleaning pulse
  • Discharging valve adjustable with NO/NC

Volkmann develops imaginative solutions for the handling of various bulk materials for the chemical, pharmaceutical and food industry.

  • Vacuum conveyors: Designs according to industry, hygiene and pharmaceutical/eGMP standards
  • Product loading stations for sacks, big bags, drums, IBCs
  • Weighing and dosing systems for bulk material handling
  • Stationary and mobile lifting columns for vacuum conveyors
  • Consulting, planning and manufacturing from a single source

 

Just in case – UHU!

Just in case – UHU!

There is probably hardly anyone who has never used a UHU product. The glue in the black and yellow tube has become one of the best-known brand products of our time. UHU develops and produces high-quality adhesives for children and parents, but also for do-it- yourselfers and professional applications in trades and industry. The development of ever better and safer products with an eye on future generations is a challenge and commitment in one.

t005-008_vakuumfoerderer_INEX-vakuumfoerderer-480x243

Cleanliness and safety

Most the products are manufactured in the industrial premises in Germany, located right at the centre of the small town of Bühl at the foot of the Black Forest. Cleanliness and safety are hence matter of course in the production. The creation of adhesives generally calls for a variety of solids and solvents, which are combined in a mixer or batching tank. To further increase the cleanliness and safety, UHU decided to use Volkmann GmbH's INEX vacuum conveyors in 2007, and hence in favour of a sealed introduction of solids to the mixer.

What were the decisive reasons for using the INEX systems?

Volkmann had already opted for an ATEX certification of their vacuum conveyors in keeping with Directive 94/4/EC in early 2002, which generally permits them to be employed in potentially explosive, dusty atmospheres. Where potentially explosive gas atmospheres are concerned, standard vacuum conveyors are turned into a type- tested INEX system by an additional inertization using protective gas (nitrogen). This allows the safe and dust-free introduction of solids into containers that are pre-filled with solvents (zone 0). One essential element of the certified INEX vacuum conveyor system for this is the purely pneumatic control, which guarantees the reliability of the process by means of various safety queries such as "enough nitrogen provided for inertization", for example. In addition, this INEX control unit can be directly installed in zone 1 or also be used in a mobile fashion on a driving carriage. Besides the safe introduction, this conveyance process also offers the additional advantage that dust and gas emissions are avoided, thus protecting the health of the workforce and ensuring that the production stays clean.

Process safety thanks to vapour barrier

Rising vapours and fumes can cause problems when mixers are filled, and are able to reduce the safety of the process. The shut-off flaps installed to separate the INEX vacuum conveyor from the mixer for introducing the solids into the process can be moistened by these rising vapours and fumes, leading to thick deposits of the solids and their getting stuck. Another frequent consequence is also that the filter inside the vacuum conveyor is moistened and becomes blocked. But the shut-off flap of the INEX system could be kept dry successfully by means of a nitrogen-operated vapour barrier which ensures uninterrupted and reliable operation.

Various installation situations on site

In grown production facilities, one will find highly varied installation situations where standard systems are often unusable. Height restrictions, oblique filler pipes and already provided system components often leave little room for new plant technologies. But given the fact that the entire engineering is performed by Volkmann in-house, and thanks to the high degree of self-production, the INEX vacuum conveyors could be successfully adapted to the various local installation situations of the mixers while also providing adequate access for operability and maintenance.

There can be many reasons for using Volkmann vacuum conveyor systems, as the UHU example illustrates. But one of the most important ones is certainly the close and partnership-based cooperation without which these various customized solutions would hardly be possible.

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