Plastic and nonmetallic article shaping or treating: processes – Recycling of reclaimed or purified process material – Of gaseous process material
Patent
1998-04-01
1999-11-23
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
Recycling of reclaimed or purified process material
Of gaseous process material
264 3717, 264109, B27N 300
Patent
active
059894652
ABSTRACT:
Methods of manufacturing board products include the steps of drying lignocellulosic material in a first stage dryer, further drying the lignocellulosic material in a second stage dryer, forming the dried lignocellulosic material into a mat, hot pressing the mat, utilizing the pressed air stream from the hot pressing step and a supply of fresh air as the source of drying air for the first and second stage dryers, utilizing the exhaust air from the second stage dryer as a source of drying air for the first stage dryer, and utilizing the exhaust air from the first stage dryer as a source of drying air for the first stage dryer and as a source of combustion air in a furnace.
REFERENCES:
patent: 3071822 (1963-01-01), Meiler
patent: 3630456 (1971-12-01), Mark
patent: 4311555 (1982-01-01), Reinhall
patent: 4517147 (1985-05-01), Taylor et al.
patent: 5034175 (1991-07-01), Safstrom
patent: 5482666 (1996-01-01), Larsson
Mikaelsson Stefan
Safstrom Christer
Silbaugh Jan H.
Staicovici Stefan
Sunds Defibrator Industries AB
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