Electric heating for the tanks –
zero local emissions
Ingolstädter Asphaltmischwerke have now used the replacement of the bitumen tanks, including all pipes, to convert the heating system from thermal oil to electricity and to expand the variety of stored bitumen. The calculations by the retrofit experts from the Benninghoven technical office had shown that this type of heating, which works without any local emissions, is a significant advantage for the selected tank configuration.
“We now have tanks with more storage capacity, some of which are equipped with a mixing nozzle or an agitator. That increases our flexibility, because we can now also store polymer modified bitumen (PmB). This means that we can produce a significantly larger number of recipes at the press of a button,” Managing Director Herbert Geiger, son of the company founder and longstanding head of the Group, reports enthusiastically.
Two of the new tanks have a capacity of 60 m³, while three others can hold 100 m³. That is significantly more than before. The higher storage capacity also supports flexibility, in particular when it comes to production reliability, because it is now easier to buffer delayed bitumen deliveries. Due to the better insulation of the tanks that IAM ordered, all five tanks can now maintain their temperature even better while using less heating energy. The mineral wool insulation is 300 mm thick and is protected with an outer layer of profiled sheeting.