Method and apparatus for minimizing steam consumption in the production of pulp for fiberboard and the like

摘要: Method and apparatus for minimizing steam consumption in the production of pulp used manufacture fiberboard like, which chips cellulosic material are ground a defibrator or refiner an environment saturated above 100° C corresponding pressures. The normally presteamed with atmospheric separated from at discharge end defibrating process to temperature between 90° compressed dewatered dryness least 50% then passed into preheater forms part refining apparatus, where heated desired temperature, usually ranging 130° 200° C, by portion high-temperature high-pressure generated heat friction grinding space defibrator, portion, upon housing, is recirculated under increased pressure pressure. If other discharged steam, separation pulp, should not have sufficient content presteam raw fresh pressurized may be added impart required capacity.