How does the Rotamix stirring system work?
Rotamix agitation system involves a circulation and process agitation in a digester or similar type of tank. Hydraulic agitation occurs by means of permanently mounted jet nozzles and an external pump.
- A laminar flow has the highest speed at the outer edge of the tank
- A vortex-oriented flow has the highest speed at the centre
- Combined, this gives a more uniform flow in the tank/digester and good mixing along the entire tank diameter
The Vaughan chopper pump is at the heart of the agitation system process, as it not only pumps the media around but also continuously atomises any solid particles. The specially designed jet nozzles are positioned and angled for optimum performance, and for the induced flow to greatly increase agitation. The high-speed nozzles maintain the jet over a long distance, allowing agitation to reach around the entire volume of the tank.
Customised stirring systems with many advantages
At MAF Pump, we design, calculate and optimise each individual Rotamix mixing system based on unique data specified by the customer. Each Rotamix system is therefore optimised based on your unique conditions.
A common application is agitation in biogas tanks and municipal digesters, where the Rotamix agitation system has a number of advantages:
- Stirring of the entire volume.
- Even and high temperature everywhere.
- Minimises the risk of sedimentation.
- The continuous chopping of coarse particles by the chopper pump provides a larger surface area for the bacterial flora, resulting in a higher gas yield.
- Continuous cutting also prevents the formation of long structures, which otherwise hinder effective agitation.
- The increased degree of digestion also reduces the volume of sludge in the dewatering system and facilitates further disposal of the sludge.
Product catalogue
Download our product catalogue Rotamix Jet agitation.
Related business areas
Service & Spare parts
We service most makes of progressive cavity pumps and as the only Swedish dealer of Vaughan chopper pumps and Volute sludge dewatering equipment, we also service these products. Thanks to our large stock of spare parts, we can ensure fast deliveries at the best quality.
Our service technicians have extensive experience. We carry out everything from preventive maintenance to all types of pump rebuilds, such as changing from stuffing box to mechanical shaft seal. We are good at customised special solutions and can, for example, adapt pump housings and feed screws to adapt operation to different customer needs.
