Drumwasher

FULLY IN CONTROL WITH THE SMART DIRT REMOVAL SYSTEM

„Van Dijke’s ” Drum washer type TP: the next generation in washing your produce. This system is equipped with the latest technology currently available in the field of washing and dirt removal with extremely low water consumption.

The washer consists of a solid and simple heavy-duty construction, with a perforated drum shell. The infeed is made of stainless steel and supplied with a water inlet. This to prevent the sticking of clay / soil in this compartment. A VDF controlled double/triple drive with a synchronized operating motor prevents the drivebelt from slipping. Even after an emergency stop, the drum will re-start easily.

The key benefit of this unit is that it is equipped with a smart dirt removal system. By applying this system, the machine can be operated with extreme low water consumption. The unit can also be used as a ‘dry drum’ (low water level, intensive washing) as well as a ‘wet drum” (high water level, more gently washing).

Unique is that Van Dijke uses industrial outfeed conveyors, which have a significant longer service life than standard rod-conveyors.

HOW DOES IT WORK?

For an optimum washing result, Van Dijke applies a round-shape perforated drum. Spiral-shape flights are mounted inside to transport the produce trough the machine, meanwhile giving the typical washing effect to the produce.

Underneath the drum a hopper is situated with a shaftless auger system, for removing the settled soil/clay towards one end of the machine. By using this smart dirt removal system, a minimum of water consumption is achieved!

With a Van Dijke washing system you are in full control of the washing intensity. In combination with the load (filling) in the drum, the speed of the drum and the water level you can achieve either a vigorous washing or a more gentle washing result. The settings of the washer depend on the dirtiness of the produce and type of soil.

Van Dijke systems are equipped with an adjustable end-discharge slide/gate at the end of the drum. With this slide/gate the machines PLC program can automatically keep the preset load (filling).

Van Dijke uses heavy duty power belts to drive the drum. Each power belt is powered by a single gearbox-motor. These motors are connected to one VFD, to achieve that there will be a minimum of slip and can be tuned by the VFD’s program.

The machine is designed for industrial purposes. All critical parts (like bearings, v-belts, chains, etc,) are from quality brand name manufacturers. To simplify maintenance the machine is designed so that all important parts of the system can be easily reached.

COMPLETE TURNKEY WASHING LINES

This machine fits perfectly in a complete Van Dijke washing line with washers, destoners, leaf removers, felt dryers, filtration screens, water recycling system and dirt handling systems. Contact Van Dijke to learn more about the possibilities!

KEY FEATURES:

STAINLESS STEEL OR GALVANISED (OR COMBINATION)
GENTLE PRODUCE TREATMENT
EXTREMELY LOW WATER CONSUMPTION
SMART DIRT/MUD REMOVAL BY SHAFTLESS AUGERS
WATER LEVEL ADJUSTABLE, BEST WASHING RESULT
ROUND DRUM WITH SPIRAL SHAPED FLIGHTS

Eco washer

Van Dijke’s Eco Washer is the next generation in washing potatoes! The system is equipped with the latest technologies in washing, dirt removal and an extremely low water consumption!

How does the Eco Washer work?

The Eco Washer is an independent machine that can be integrated in for example a rick and dirt separator or other equipment. There are three main parameters that are easy to adjust: the filling (load) of the drum with product, the water level in the drum and the speed of the drum. When you lower the water level, increase the filling and speed up the drum, a more vigorous washing effect is achieved. By increasing the water level, you can achieve a more gentle way of washing. The unique part about the eco washer is the extremely low water consumption. That’s because of an auger system to remove the settled dirt in the washer to a central discharge valve.

The key features of the Eco Washer:

Smart design with easy maintenance
The product is treated gently to prevent damage
Galvanized or stainless steel options
With adjustable water level
Available in different sizes and capacities

Presoak Unit

MULTIFUNCTIONAL UNIT FOR OPTIMUM WASHING

This innovative Presoak unit is used to presoak produce like potatoes from the heavy (clay) soil. The produce is totally submersed, which ensures a maximum presoak-effect of the produce. The transport of the produce trough the machine is done by one or more (big diameter) augers.

Because the produce is totally submersed in the water, the water is able to penetrate into the adhering clay or sticky soil on the produce. This causes a perfect soaking result.

The unit consists of a big water tank with a wide outfeed belt and in the bottom two (2) big diameter augers (depending on capacity). The combination of the infeed flow, the powerful water stream and the turning movement of the augers transports the produce to the outfeed conveyor. Soil like sand, clay, etc. will go down to the bottom and is removed by using a shaftless mud-auger, which brings the sludge to the outlet valve.

The unit can be used as a soaking- as well as a pre-heating unit. For the fresh market (table potatoes) this machine is able to receive heated water to warm-up the produce to avoid bruising damage to the potatoes during the further processing in the line.

HOW DOES IT WORK?

The Van Dijke presoak unit is a multi-functional machine. The unit can be used as a presoak unit, as well as a pre-heat unit. Also the unit can be equipped (optionally) with an integrated Wet Leaf Remover, for removing vine, leaves and other floating debris from your produce.

The unit is built up from a main receiving and presoak hopper. Within this hopper, one or more augers (depending on the type/capacity) are mounted to transport the produce from the input compartment trough the machine towards the outfeed conveyor. The augers are equipped with a VFD so the presoak time can be preset (in between 5 and 30 minutes)

At the end of the presoak unit, the outfeed conveyor will processes the produce to the next step in your washing line. Underneath this conveyor, a smart dirt(mud) removal system is installed. This system is equipped with a shaftless auger, which will take the mud and soil towards one side of the machine. At the end of this auger, a pneumatic knife valve is mounted to automatically flush the settled dirt to a recycling unit or a pond.

The unit can be used as a soaking- or as a heating unit. Any heat or energy released from the cooling units (storage) can be collected and used for the heating of the water in this unit. The potatoes coming from the cooling stores are warmed up before going further in process. Some varieties are extremely sensitive when the temperature of the produce is low. By using the unit as a pre-heat unit, bruising damage will be avoided during processing trough the line.

Complete turnkey washing lines

KEY FEATURES:

STAINLESS STEEL OR GALVANISED (OR COMBINATION)
GENTLE PRODUCE TREATMENT
PRODUCE SUBMERSED-BEST PRESOAK ACTION
MULTI FUNCTIONAL MACHINE
OPTION FOR INTEGRATED WET LEAF REMOVER
SMART DIRT (MUD) DISCHARGE SYSTEM

Destoner, rock/clod separator

THE INNOVATIVE DESTONER WITH EXTREME LOW WATER USAGE

Van Dijke’s Destoner & Rock separators: the best way for destoning/removing rocks, earth lumps and clods out from your produce. This system uses a very high water flow rate to achieve perfect separation of rocks, lumps and dirt, yet treating the produce gently.

Van Dijke uses a split soil/sand and a rock/lump discharge system, for an optimum performance. The produce is brought into the first receiving hopper by an infeed conveyor. Rocks, earth lumps, clods, etc. will sink down in the receiving hopper onto the rock conveyor. This conveyor discharges the heavy materials outside the receiving hopper. The produce floats with the water onto the produce outfeed conveyor, which is mounted in the second hopper, the settling compartment. An impellor-pump is used to force the water back into the receiving hopper. This unit is also equipped with a system for filtering the sandy soil and clay (which is dissolved into the water) out of the water.

The key benefit of this system is that it can handle a high capacity produce, yet using a little amount of fresh (or recycled) water. This is achieved by the internal water recycling system and the smart designed sand and soil filtering system.

HOW DOES IT WORK?

A heavy duty impellor-pump forces the water from the settling compartment into the receiving hopper. Rocks, lumps, clods, etc. will sink though the waterflow, while the produce floats with the water into the 2^nd compartment. Due to difference in specific weight between the produce and the foreign material (like rocks, earth lumps, etc.) the separation of both is achieved. By using a VFD on the water propulsion, a perfect and adjustable separation-process will take place into this unit. The produce will float and go into the second compartment. A web-conveyor belt will take the produce out of the machine and bring it to the next step in the process. Sand and clay will settle down in this compartment and are discharged trough an automatic operated valve. The sludge can be sent to a water recycling unit or to a basin. The heavy waterflow also helps to soak the produce for better cleaning and creates a light (pre)washing effect.

The machine is smart-designed and developed for heavy (and industrial) circumstances. This means that almost all driven parts are placed above the water level. To simplify maintenance, the machine is designed so that all important parts of the system can be easily reached. The machine is equipped with several inspection hatches.

The electrical motor with v-belt drive is installed on the outside of the machine and adjusts the waterflow.

The destoner is available as a stand-alone machine, but will also perfectly fit into a complete Van Dijke washing line.

The machine is available in capacities up to 150 ton / hour.

COMPLETE TURNKEY WASHING LINES

KEY FEATURES:

STAINLESS STEEL OR GALVANISED (OR COMBINATION)
GENTLE PRODUCE TREATMENT
EXTREMELY LOW WATER CONSUMPTION
SELF CONTAINED SYSTEM
WATER LEVEL ADJUSTABLE, BEST DESTONING RESULT
SEPARTION PROCESS ADJUSTABLE

Wet Leaf Remover

Van Dijke’s Wet Leaf Remover is designed to remove floating debris out of your product like potatoes, carrots, and other rood vegetables, yet treating the product friendly.

Roller Felt Dryer

THE MOST EFFECTIVE CROP-DRYER

The Van Dijke Felt dryer is designed for removing remaining surface moisture from your root vegetables, like potatoes, without damaging the produce. By applying this unit as the next step after your washing line, the produce can be processed (bagged/ packed) dry.

The van Dijke felt dryer is available in two widths: 1000 and 1200 mm. The length of the roller-unit can be chosen in sections of five rollers (for example 10-15-20-25-30 rollers). Optionally the first section can be equipped with brush rollers and a fresh water spraying pipe.

The rollers are standardly driven by a chain and one or two motors. Optionally (for industrial purposes) the felt dryer can be equipped with all individual drives for each roller. This simplifies maintenance and gives a longer service life.

The unit is built up from stainless steel construction and rollers. To collect the moisture, the unit is equipped with a drip plate underneath the machine. Optionally the drip plate can be equipped with a filtration screen to remove the organic particles (like potato parts, leaves etc.)

HOW DOES IT WORK?

The Van Dijke units are built up from three main units: the main unit with the drying roller sections, the lower frame with drip plate or filtration conveyor and a higher section with an automatic emptying system. All sections are integrated into each other. But for maintenance purposes these sections can be removed from each other.

The roller section is built up from two rollers: one main (drying) roller covered with special felt. Underneath this roller, a set of smaller (diameter) rollers are placed to squeeze out the felt roller. Each individual roller is supplied with bearings, mounted on springs. This ensures that there is always a certain tension onto the felt rollers. Also the complete section can be lowered, to release tension in case of maintenance purposes.

Optionally the modular roller section can be equipped with a plastic scraper to remove the moisture from the squeeze out roller.

It is also an option to equip the unit with an automatic emptying system. When you finish washing or want to change variety, this system ensures that all remaining produce will be forced from the felt dryer.

The unit is standardly equipped with a drip plate. In addition to keep this drip plate clean, underneath the unit a filtration conveyor can be placed to separate the organic particles from the water. This filtration screen brings the organic particles to one side of the unit.