D - Textiles – Paper – 21 – B
Patent
D - Textiles, Paper
21
B
92/55.3
D21B 1/24 (2006.01) D21B 1/12 (2006.01)
Patent
CA 1180217
Abstract of the Disclosure A method of increasing the temperature of shower water used in a wood grinding process wherein wood is ground in a grinding space (3) under a pressure exceeding atmospheric pressure, and warm shower water (G) is fed into the grinding space for improving the grinding process. In order to compensate losses of shower water replacement water (E) is added to the shower water circulating system. The replacement water is fed into the groundwood pulp (A) after the grinding space but before a steam separator. Thus cooler replacement water can be heated by the heat energy otherwise re- leased from the groundwood pulp in the steam separator, and the temperature of the shower water can be maintained close to 100°C in spite of the addition of cool replacement water and without using a pressurized steam separator.
389624
Oy Tampella Ab
Swabey Ogilvy Renault
LandOfFree
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