Pugmill Mixers

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BHS- Sonthofen MFKG Mixer – Developed for the mixing of fine materials. Fly ash, bottom ash, lime kiln dust, and cement kiln dust.

Single Shaft Brochure

Optimized mixing process 1
In the BHS single-shaft continuous mixer, the different formula ingredients are forcefully accelerated by the fast-rotating mixing tools. The centrifugal force results in a ring of mixture with turbulent swirl formation along the inner wall of the mixer. The mixing tools generate extreme relative movements of the mixture. This results in optimal mixing and consistently high levels of homogeneity. It is also possible to process materials that are otherwise very difficult to mix or that are mixed in very different proportions.

Inlet shaft with efficient liquid nozzles 2
In contrast to conventional systems, liquid formula ingredients are already added directly at the mixer inlet of the MFKG single-shaft continuous mixer through high intensity nozzles, rather than in the mixing zone. This allows all input materials to be encapsulated with liquid prior to entering the mixing chamber. The second phase is performed with the mixing tools that ensure intensive, uniform mixing of all the materials.

High-performance drive 3
The drive configuration and power are rated according to the specific application and customer requirements. As standard, the system is driven by a high-performance electric motor, an easily accessible V-belt drive and robust worm gearing with a high degree of efficiency. For special requirements, alternative drive concepts can be implemented.

Mixing tools for specific requirements 4
Depending on the application, the mixer can be equipped with different mixing tools in order to achieve the best possible material acceleration, relative movement and shearing forces. The mixing arms and blades are easy to exchange. The mixing shaft is smooth to prevent caking.

Large maintenance hatch 5
With its large maintenance hatch, the entire mixing section of the mixer is very easy to access. Maintenance work can be carried out very quickly and easily.

Seals 6
Depending on the specific mixing task, the mixing shaft is secured by means of special axial face seals or gas seals in order to prevent mixture materials from penetrating the shaft bearings.

Self-cleaning rubber trough
The mixing trough of the MFKG single-shaft continuous mixer consists of a flexible rubber jacket fixed in a steel frame. It is made of a very tough industrial material that is also resistant to temperatures of up to 150 °C in continuous operation. During operation, gentle vibrations and churning motions of the rubber trough prevent caking of the curable mixture on the walls of the trough. This ensures a continual self-cleaning process during mixer operation. The elasticity of the rubber jacket reduces friction losses due to caking and also significantly decreases wear to the mixing tools.