SECONDARY RAW MATERIALS
High performance vibrating trough from JOEST for bottom ash at waste energy company AVR.
JOEST, specialist in vibration technology, optimizes the transport of bottom ash at the waste energy company AVR in Rozenburg, Netherlands.
AVR specializes in the processing of various types of residual waste and transforms this residual waste into energy and raw materials for households and businesses. These raw materials are made of metals and minerals. The minerals are reused, for example, in new paving stones. AVR extracts both raw materials from non-combustible parts; a mixture of moist waste incineration slag with scrap parts and fly ash. The material size is on average 300 mm, but with outliers up to 1,000 mm. An abrasive and corrosive substance with a tendency to soiling and clogging.
JOEST was commissioned to handle this slag during transport. The continuous flow of 50 m3 per hour is to be conveyed into a hopper and then directed to a swing conveyor, dosed and distributed. Always taking into account the material properties mentioned above.
JOEST supplies an individually tailored vibrating trough with a width of 1,800 mm and a length of 4,750 mm. Two unbalance motors ensure a linear direction of vibration. The complete trough is made of Hardox steel and additionally equipped with interchangeable 12 mm wear plates. JOEST also supplies the support structure including vibration damper and engine brake unit for a manageable start/stop operation.
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My name is NOIRET Garance, I am 21 years old and I am a French student. As part of my engineering studies in 4th year in Energy Mechanics I had the opportunity to do my internship abroad at the company Joest in Germany.
In conventional exciters, the bearings are lubricated by oil mist. The gears inside the housing churn the oil into fine droplets, which are distributed within the gearbox. Only a portion of these droplets reaches the rolling bearings and provide the lubrication. Some housings have oil collection pockets on the inside. These are intended to guide the oil along the inner surfaces of the housing downwards into the bearings. However, the entry of oil into the bearings is random and the quantity is undetermined. To improve the entire lubrication, the JOEST Oil Management System has been developed.
2024 was a special year in many ways for our continuously growing JOEST group. To start, we completed the largest acquisition in our company‘s history at the turn of the year with the purchase of the MOGENSEN Group and its locations in Germany, Spain and Sweden.