Pleated element filter for de-dusting of PVC stabilisers

Reagens is a manufacturer of special chemicals for production of PVC and other thermoplastic plastics. In the production location Loxstedt organically based stabilizers are produced among other things. In our everyday life they are hardly perceived, but the special chemicals are essential for the processing of PVC. Only by their use the final products get their required durability.
The up to now used cyclone for the dust removal of the production processes could not any longer fulfil the realisation of lower dust emission values presecuted by Reagens. In lieu of the cyclone Infastaub delivered an aspiration filter of the type Infa-Lamellen-Jet. In spite of small floor space a filter surface of 72 m² could be realised because of the optimised filter geometry. The old fan was substituted with an energy-optimised fan type.
The requirements for the new filter unit were very special. The paraffin containing dust particles are adhesive, waxy and could clog the pleated elements within short time – then a cleaning would not be possible any more. Therefore pleated elements with a laminated PTFE membrane are used. The diaphragm allows a stable dust removal process. Furthermore with this dust kind a danger of explosion is possible. The pleated element filter was therefore designed for a pressure shock resistance of 0.4 bar g. Additional explosion decoupling systems on the raw gas and clean gas side were planned by the customer.
Applications with such edge conditions need a high degree of competence which our engineers have gained from many comparable projects. The outcome of this are filter systems, which guarantee safety and reliability.
Heiko Sievern, head of technical department at Reagens, declares after 4-months operating: „The new filter unit completely measured up with our expectations. After detailed preliminary planning and punctual delivery the high-quality workmanship of the stainless steel filter housing struck us immediately. After 4 months in operation the Infastaub filter unit has proved its efficiency. Dust emissions are far below the target value of 10 mg/m³ and the granulating process sucked off by the filter runs steadily. We will count on the cooperation with Infastaub also for other projects.“
Infastaub presents at his stand E07 in hall 4 a model of a pleated element filter at the trade fair “Schüttgut” in Dortmund.