conical shape nauta mixer with high mixing efficiency.

Nauta Mixers are constructed on the principle of rotation and revolution, using the rotation of the axle to convey material.  At the same time the material is moved up and down the conical vessel by means of gyratory stirring along the vessel wall.  This, combined with the central revolution of the screw, provides fast, uniform and accurate mixing for the product within.  

 

The Nauta Mixer is composed of:

Vertical cone shaped vessel with inlets and venting gateDischarge valvesDriving Head (distribution box)Motor and ReducerTwin Screws (asymmetrical)Spray NozzleShaft Coupling

The mixing process occurs via three distinct intermixing actions

The screw agitator, turning on its axis, produces a lifting action as it spirals the materials in an upward direction.At the same time, screws orbiting within the vessel, scrape material from the wall and deflect it into the centre.Material lifted by the screw gravitates downward, thoroughly intermixing with material being spiralled upward. 

Mixing time depends on product characteristics, mixing accuracy and batch size.

 

Advantages

Mixing Accuracy: Materials are mixed to the highest level of accuracy, up to minor ingredient quantities at a ratio of 1 to 100,000.

Scientific Design: AWE’s Nauta mixers are all designed to be low maintenance. A GMP model is also available for pharmaceutical or food applications.

Segregative powders: The mass flow discharge function caters for segregative powders.

Flexibility in process:  AWE’s Nauta mixer has a flexible working capacity from 10 – filling rate with no loss of mixing accuracy

Gentle mixing course: The mixing process uses a minimum of power consumption, free of heat generation, with no damage to the product structure.

Fast and full discharge: Discharge rates up to 45,000L/hour are possible.  Residues can be reduced to as little as 0.001% depending on the product characteristics.

Easy to clean: Conical mixers are  designed to be easy to clean via either wet or dry methods through extra large doors on the vessel, using spraying devices, if appropriate. 

 

Features/Benefits:

High quality mixing and accuracy is possible for a wide range of materials.

Machines are capable of combining several processes, for potential savings in space, labour and cost.

Mixing accuracy rates are to 0.001% or better, less waste, more output.

Low power consumption means lower costs.

The structure is simple and flexible, eg. liquid can be easily injected and atomised through the hollow drive system at the top of the mixer.

The unique conical design provides gravity unloading and faster batch discharge.  It also allows for easier cleaning.

The top entering drive ensures full product protection as neither bearings or seals are in direct contact with the material.

No degradation or segregation, no heat generation.

Vertical installation allows for a minimal use of floor space.

The gentle mixing process results in a minimum of product distortion, no dead angle, almost no residue and easy cleaning, thus very little risk of cross contamination between batches.

 

Optional Functions

Discharge valvesJacket : Provided for heating/cooling operationDrive :  Either a single motor for driving both screw and swing arm, or two motors for  separate functions.  VFD motors are also optional for a variable speed operation.Cover : Hinged as standard. Half opening and flanged are also available.Lump breaker: Self powered lump breakers provided at the bottom of the tank.Liquid injection system: Simple spray pipe with nozzles to introduce liquid.