Melt-blowing apparatus with improved primary air delivery system
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United States of America Patent
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Feb 16, 2016
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app pub date -
Jan 29, 2014
filing date -
May 7, 2013
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Abstract
An improved melt-blowing apparatus includes a primary air system with a plurality of air tubes and a die tip assembly having a die tip and a pair of oppositely disposed air plates. A flow-splitting device efficiently divides a stream of pressurized and heated primary air into multiple tubular flows, which are fed into air intake passages in the die tip assembly. The flow-splitting device and the air tubes are located radially outward and independent of the die body and the die tip assembly. The tubular air flows are transformed into two uniform air knives by a distribution chamber within the die tip assembly. The present primary air supply system simplifies the equipment, saves energy, improves product quality, and reduces operational and maintenance efforts.
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