ISS SCHÜTTGUTTECHNIK GMBH I AERZENER MASCHINENFABRIK GMBH

The gypsum blown through the pipe

All Aerzner

The fibreboard production is supplied with stucco from the gypsum plant via a specially built pipe bridge

All Aerzner

1 ISS Schüttguttechnik has planned and realised the new stucco supply together with Knauf Engineering

2 ISS-Sales Director Robert Partzsch with a 3D-Print of the projected conveying system

3 Delta Screw units of type VM21 supply a volume flow of up to 1200 m³/h

4 Using Aerzen screw compressors, stucco is pneumatically transported for fibreboard production at Knauf

5 Aerzen technology is also used at Knauf, to retransport grinding dust into the raw material preparation

6 The gypsum fibreboards are transported for drying into the furnace line after setting

Knauf has recently invested around € 33 million in the Rottleberode site in the southern Harz region – and in 2017 a modern fibreboard plant was taken into operation. Cellulose and stucco are the main components of the boards, which are very versatile in interior design applications. A pipe system is used to transport the fired and finely ground natural stone between the gypsum and fibreboard plants. Aerzen screw compressors type Delta Screw provide the appropriate pressure and volume flow during pneumatic transport.

The energy revolution will make the gypsum industry increasingly dependent on natural stone deposits in the future. The entire industry is in a state of upheaval, because the FGD gypsum produced in the desulphurisation plants of lignite-fired power plants is a dying breed due to the shutdown of these power plants. On the other hand, the possible applications of gypsum are becoming more and more diversified for example: fire-retardant or water-repellent gypsum plasterboard, plaster, flowing screed and gypsum fibre board are just some of the applications in the construction industry. No industry...