Heat Treatment Plants for Carbon Fiber Production - Ruhstrat GmbH

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HEAT TREATMENT PLANTS FOR CARBON FIBER PRODUCTIONLT-Furnace The Muffle has patented bearings. The expansion of the muffle from themuffles middle to the outside. The expansion in longitudinal directionis supported and controlled by a specialequipment. Construction of the muffle is made by aspecial software. This eliminates thermal tension insidethe muffle. Durability and life time of the muffleincreases. By using special stream plates in the inletarea of the muffle, the condensateof tar is minimized. Heating consists of high quality ceramicfiber modules with integrated heating.Heating conductors are made fora max. heating conductor temperatureof 1,180 °C. This means a durability ofseveral years. By using these heating modules a veryhomogeneous temperature spreading isattained. The insulation of the backward wall consistsof high quality mineral fiber. Thisreduces the loss of heat. Lost power isapprox. 350 W per m² at 850° furnacetemperature.central exhaustgas treatmentunwindersoxidation ovenRuhstrat GmbH · Leinetal / Auf der Mauer 1 · 37120 Bovenden · Germany phone +49 (0) 55 1 820 830 - 0 · fax +49 (0) 55 1 820 830 - 50 e-mail: info@ruhstrat.com · www.ruhstrat.com
HEAT TREATMENT PLANTS FOR CARBON FIBER PRODUCTIONHT-Furnace The body of the furnace is equippedwith special cooling plates whichcool directly the heating space, no„sandwich“ construction: metal-wall-thermal conduction cement –coolingplates. This avoids local overheating ofthe body. The insulation consists of only highquality graphite insulation (graphitefelts). As last layer there is a high qualityceramic fiber. The heating is located around themuffle. This makes the furnace to attaina very homogeneous balancedtemperature. Each heating zone is 3-phase. Thismeans that the supply network systemis charged in a symmetric way. As an option we can provide speciallyby Ruhstrat manufactured variabletransformers. Advantages over thyristerregulations are that the powernetwork is not loaded with harmonicwaves. Expensive compensation equipmentis therefore not needed. The high current transformers manufacturedby Ruhstrat are integratedinto the supporting stand. There is noneed for caves on the ground floor. Water coolings are cased as much aspossible. Hoses will be avoided whereit is possible.inletsealing boxlow temperaturefurnaceoutletsealing boxRuhstrat GmbH · Leinetal / Auf der Mauer 1 · 37120 Bovenden · Germany phone +49 (0) 55 1 820 830 - 0 · fax +49 (0) 55 1 820 830 - 50 e-mail: info@ruhstrat.com · www.ruhstrat.com
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Heat Treatment Plants for Carbon Fiber Production - Ruhstrat GmbH

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