Method of manufacturing a board

Plastic and nonmetallic article shaping or treating: processes – Recycling of reclaimed or purified process material – Of gaseous process material

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Details

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

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