AViTEQ Vibrationstechnik GmbH

AViTEQ Loss-in-Weight Feeders are designed to ensure a continuous, gravimetric and high tolerance batch dosing of flowable bulk materials that are not hygroscopic, adhesive or interleaving features. The feeders are sSuitable for many bulk materials including those with the following characteristics:

• fragile (food products)
• abrasive (coarse powder, pellets, granulate)
• difficult to handle (like fibres, glass fibres, pharmaceutical powders)

Suitable for wherever precise dosing and weighing of the main components and additives is necessary. Ideal in the following industries:

• Food & Animal Feed
• Plastics / Chemicals
• Pharmaceuticals

Advantages & benefits

• less shear and pressure forces
• Troughs have a dead space-free design
• quick and easy cleaning, maintenance-free vibration discharge
• very gentle weighing (volumetric and gravimetric)
• highly precise dosing
• high throughputs

Functionality

The AViTEQ vibration small conveyor (KF Series) discharges from the weighing storage container a predetermined portion of the material at a predetermined conveying capacity. The amount of the bulk material discharged is measured continuously and gravimetrically by a high-resolution load cell. The LIW algorithm then calculates the conveying rate. The weighing terminal processes the values of the load cell with a fixed set point and regulates the conveying capacity of the dosed small conveyor using the AViTEQ Vibtronic control. If the minimum level of the material obtained in the weighing storage container, the secondary feeding conveyor (optional feeding system) will turn on and the weighing storage container is filled again, followed by a settling phase. The Operations of a Loss-in-Weight process is divided into the dosing, refilling and settling phase.

Dosing is basically gravimetrically. Since the load cell cannot distinguish between dosing

and refilling, the dosage works volumetrically in the refilling and settling phase. A positive

feature is that bulk density variations, grain size changes or changing flow behavior at the

Loss-in-Weight Feeder have little effect on the metering accuracy because the material flow is monitored continuously by weight and regulated.

AViTEQ-Spiral conveyor are used wherever bulk solids have to be conveyed in a vertical direction. These robust spiral conveyors are suitable for conveying a host of bulk solids from various production processes. These can be fine to coarse-grained, as well as fragmentary bulk solids. Our spiral conveyors are used in the chemical, pharmaceutical and food industries, and also in the raw material industry. The use of additional fixtures enables products to be treated by thermal (cooling/heating) or technical (drying) processes. The bulk solids can be transported both upwards or downwards.

Advantages & benefits

• energy and space-saving vertical conveying that's gentle on the material
• low-maintenance continuous operation
• easy-to-clean, hygienic design
• natural cooling of the bulk solid during the conveying process thanks to long dwell times
• bulk solids cooled either directly by air or indirectly by water through the use of double bottom or laser-welded Thermplate® bottoms as the spirals
• bulk solids heated/dried either directly by air radiators or indirectly by water or thermal oil through the use of double bottoms or laser-welded Thermplate® bottoms as the spiral

Construction

The main components are:

• Spiral top from standard stainless steel or special purpose steel with single or double bottoms
• The infeed plate and spiral are available as reinforced, plastic-injected versions upon request.
• extremely heat-resistant version (conveyed material temperature up to approx. 900°C) possible upon request
• drive gear with unbalanced motors (the spiral conveyor can be executed with the drives at the top or bottom, depending on requirement)
• stationary or mobile version
• open or closed version (closed version with resonant cover or stationary housing)

Selection

 The dimensioning of the spiral conveyor depends on:

• conveyed material
• flow rate
• required delivery height
• process requirements (cooling or drying etc.)
• application conditions
• available space

Key figures

• effective delivery height: up to 8,000 mm
• spiral diameter: up to 1,500 mm
• flow rates: up to approx. 30 m³/h, depending on conveyed material
• drives: 2 unbalanced motors

AViTEQ-trough conveyor are suitable for conveying and metering of pourable bulk material up to almost any particle size. By ensuring robust and open, trough-shaped structure are particularly suitable conveyors in extreme environmental conditions, because of the easy cleaning ability, but also happy in the chemical and food industry.

Advantages & benefits

Wide range of applications:

• using magnetic vibrator drive(s) or vibrator(s)
• dust-proof versions available
• long conveying inserted through serial connection possible
• multiple drive possible
• execution in mild steel or stainless steel

Construction

Conveyors are characterized by their simple design. The main components are:

• conveyor with drive traverse
• drive
• in-/outlet pipe (covered variants)
• elastic support elements
• flexible seals

Selection

The sizing is dependent on:

• bulk material
• throughput
• required geometry
• possible installation mass

Key figures

• length: up to 9,000 mm on single units, theoretically unlimited for conveyor lines
• width: up to 3,500 mm
• throughput: up to 1,000 m3/h
• drive: magnetic vibrator, unbalanced motor, exciter

AViTEQ-Tubular feeders are suitable for handling and dosing of free flowing bulk material with a max. grain size of 1/3 of the tube diameter. Especially when the conveying process has to be dust free, tubular feeders are suitable through their closed design; which is needed also with high standards of hygiene and cleanliness. For feeding poisonous and hazardous substances, tube conveyors are used preferred.

Advantages & benefits

Wide range of applications:

• dustproof
• food suitable  construction
• driven by magnetic vibrator/s or unbalanced motor/s
• long distances possible due to serial connection of feeders possible (conveyor lines)
• multiple drive possible (magnetic vibrators)
• variants available for reversing machines
• separate replacement of tube body or drive traverse (clamp version)
• made of mild steel or stainless steel

Construction

Tube feeders are characterized by their simple design. The main components are:

• feeding tube with a drive beam, either welded or connected by clamping saddle
• drive (magnetic vibrator/s or unbalanced motor/s)
• inlet / outlet nozzles
• elastically supports
• flexible sealing

Selection

The sizing is dependent on:

• product to transport
• throughput
• required geometry
• possible installation

Key figures

• length: up to 9,000 mm for single machines, theoretically unlimited for conveyor lines
• diameters: 219 mm, 273 mm, 324 mm, 406 mm as standard, other diameters possible
• throughput: up to approximately 100 m3/h
• drives: magnetic vibrator or unbalanced

AViTEQ-Vibrating screens are robust, durable, bulk material adapted heavy workers, which are used as discharge units with integrated screening function below a silo, hopper or bunker or as functional organs to feed belts or crushers. Depending on the task, the devices are designed with a robust inlet area with liners (wearing plates) followed by two or three bar grate levels. Each rod is made in a tapered shape which results in a widening gap and bulk jams are avoided.

The areas to use such strainers are the primary industry, stones, earth, coal industry with grain sizes up to 1,000 mm in length, but also the chemical and food industry. Everywhere, where a roughly screening and separation of fine and gross material is needed.

Advantages & benefits

Wide range of applications:

• product to feed
• screening of gross grain
• separation of gross grain before classifying
• separation of fine grain from crushers
• protection screening in front of conveyor belts

Construction

The main components are:

• conveyor with drive traverse
• bar grate inserts
• drive (magnetic vibrator/unbalance motor)
• elastically support

Selection

The sizing depends on:

• conveyed material
• throughput
• separator size
• required geometry
• possible installation

Key figures

• length: up to 10,000 mm
• width: up to 4,000 mm
• throughput: up to 750 m3/h
• drive: magnetic vibrator, unbalanced motor, exciter