Precise mixing system

. It is based on the same inline injection technology as Dürr’s established two-component mixing system. In an upgrade a color changer, a measuring cell, and a mixer have been integrated. The controller is fully enabled to automatically meter, merge, and mix all three components just before they are used. This is done by monitoring the continuous flow of the first component using a measuring cell. The other components to be injected are metered as required to the desired mixing ratio by opening and closing valves. To ensure the correct mixing ratio, the metering quantity is monitored using measuring cells. Particular precision is needed for the third component, which typically determines the viscosity. Therefore, Dürr uses Coriolis measuring cells. These are maintenance-free, offer high measurement accuracy and provide measurement functions for density and temperature among others. In the event of minor leaks during operation, the clever valve design ensures that fluids are unable to get into the valve’s pilot air piston. If maintenance is ever required, the valve can be quickly replaced by undoing four screws. Dürr’s new dosing system is complemented by a 7-inch color touchscreen display where users quickly find their bearings. The standard delivery contents also include an Ethernet communication interface that can be integrated into the particular controller landscape. In addition, the mixing system has smart functions to minimize both detergent consumption and fluid loss, significantly reduces the time required for rinsing and loading a new medium.

Further information: www.durr.com