Process And System For De-coating Of Aluminum Scrap
Brand Name:Hengyang
Certification:ISO9001
Model Number:HC-534
Minimum Order Quantity:1
Delivery Time:20-40 days
Payment Terms:T/T
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Location:
Zhengzhou Henan China
Address:
500m West, Cross road of Rizhao and Industrial Road, Mazhai Industrial Zone, Zhengzhou City, China
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The de-coating is a thermal treatment applied on the aluminium scrap, used to remove from the surface of the material all the contaminants as paper, oil, links, paint, plastic.
A method for removal of organic coatings from loose aluminum scrap
includes passing the scrap through a Multiple Hearth Furnace
operatively maintained in the range of 500° F.-1600° F. Each hearth
in the furnace is independently temperature controlled and held
under a slightly negative pressure environment. The hearths heat
the scrap such that pyrolysis of the coatings occurs within the
hearth. Organic compounds liberated during this process are
partially or entirely consumed within the furnace combustion
products are exhausted through the top. Hydrogen fluoride contained
in the products of combustion is incinerated prior to final
discharge from the system and routing to additional environmental
equipment for particle removal. Scrap is continuously fed into the
top of the furnace, and agitated and mechanically moved within each
hearth toward an output of another hearth therebelow. The agitation
and movement of the scrap exposes the scrap to the hearth
atmosphere to assist in processing of the scrap. The discharge of
the scrap in the final hearth supplies hot (250° F.-900° F.), clean
material for the next step in the process for secondary aluminum
recycling.
Process And System For De-coating Of Aluminum Scrap
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