Contact Product finder ABOUT SCHEUCH PROD­UCTS + SO­LU­TIONS SER­VICE JOBS + CA­REER NEWS Con­tact Ref­er­ences Down­loads Eng­lish Zementwerk Leube CLINKER COOLER DE­DUST­ING: FIRST PRO­JECT FOR US­ING WASTE HEAT GETS OFF THE GROUND Op­ti­mis­ing the op­er­at­ing costs that arise as part of the life cy­cle costs of a sys­tem has been some­thing that Scheuch has fo­cused on for years. In­creas­ingly, en­ergy con­sid­er­a­tions – that is, sav­ing en­ergy, min­imis­ing its us­age and re­cov­er­ing it – have be­come one of the biggest dri­vers in these en­deav­ours. The re­sult is a new con­cept for us­ing waste heat in clinker cooler de­dust­ing. THE PROJECT ZE­MEN­TWERK LEUBE GMBH, ST. LEON­HARD (A) The LEUBE GmbH ce­ment plant in­vested 31 mil­lion eu­ros in mod­ernising clinker pro­duc­tion at its Garte­nau/St. Leon­hard site in Aus­tria. As part of this, Scheuch was re­spon­si­ble for de­liv­er­ing a de­dust­ing plant that in­cor­po­rated the new waste heat us­age con­cept. In the fu­ture, the air/oil heat ex­changer will make avail­able 1.3 MW of heat that would oth­er­wise go to waste, and this can be used for pre­heat­ing heavy oil and room heat­ing. The con­cept uses an EMC fil­ter for ap­prox­i­mately 150,000 Bm³/h, an air/air heat ex­changer for cool­ing ex­haust gas to a max­i­mum of 130°C, and an air/oil heat ex­changer for trans­fer­ring heat from cool­ing air to the ther­mal oil cir­cuit. The re­sults Pro­ject man­ager Klaus Czepl ap­praised the new in­stal­la­tion and the ben­e­fits of heat ex­trac­tion: “Even af­ter just a few weeks in op­er­a­tion, we know that the cool­ing sys­tem is run­ning ex­tremely smoothly with the heat ex­trac­tion fa­cil­i­ties, and we have cal­cu­lated a heat quan­tity of around 1.3 MW that we’re able to re­cover. As things are get­ting up and run­ning, we are cur­rently us­ing round 800 kW for pre­heat­ing heavy oil. We are still adapt­ing the sys­tem for build­ing heat­ing pur­poses. Al­though we have used half of the heat quan­tity so far, the to­tal ad­di­tional costs for the heat ex­trac­tion fa­cil­i­ties will be re­couped in well un­der a year. In the clinker man­u­fac­tur­ing process, the fact that the de­dust­ing plant – that is, the cooler and the EMC fil­ter plant – does not cause any pres­sure fluc­tu­a­tions is a real ad­van­tage. The dif­fer­en­tial pres­sure be­hav­iour is very steady – in fact, it has­n’t changed at all, and that makes the fur­nace end pres­sure very easy to reg­u­late. We are ex­tremely happy with both the tech­ni­cal con­cept and the sys­tem’s per­for­mance.” © 2021 Scheuch GmbH Contact Us Scheuch GmbH Weierfing 68 4971 Aurolzmünster Austria Service Hotline +43 77 52 905-8905 Tel +43 77 52 905-0 office@scheuch.com Imprint Sitemap Privacy policy