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 Extrusion, Single Screw
 Extruder using air to heat extruder
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Maximus Member Posts: 1 |
posted January 18, 2005 12:01 AM
  
Hey, I am a student working with a recycling company. We are currently working on a pyrolysis plant that uses an extruder as an air seal to the furance. The gas byproducts from the process are quite hot and a combustible. It is proposed to burn this gas and use it to heat the extruder. Has there been anything likr this tried before, and if so can someone please give me some leads on these machines. Cheers Max IP: Logged |
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Tom C Moderator Posts: 439 |
posted January 18, 2005 01:48 PM
Maximus, Things you should consider; You may need to heat up the extruder to get the process going. That will require some electric heaters on the barrel. Make sure to have some provision to control the air temperature surrounding the extruder. A typical aluminum heater may need to be operating at 300C to control a barrel zone at 200C and that is with good heat transfer. The whole control strategy may be very difficult. As an alternative consider using heat transfer oil. A control circuit (or several) could use the heat from the furnace and tranfer it to the extruder much more efficiently. Again, electric heaters will likely be required to heat the oil to operating temperature before starting. I would look to rubber extruder providers for extruders that are oil heated. [This message has been edited by Tom C (edited January 18, 2005).] IP: Logged |
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