HOT PRESSING OF FLUTING PAPER
Much of the heat is spent by papermaking machine on drying paper which ultimate dryness is in range of 35–50 %. In this respect 60–45 % water is dried, resulting in paper industry is the second followed by as per steel industry cost of heat per unit of output. It is possible to essentialy reduce cos...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Igor Sikorsky Kyiv Polytechnic Institute
2015-11-01
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| Series: | Вісник Національного технічного університету України «Київський політехнічний інститут імені Ігоря Сікорського»: Серія «Хімічна інженерія, екологія та ресурсозбереження» |
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| Online Access: | http://chemengine.kpi.ua/article/view/52240 |
| Summary: | Much of the heat is spent by papermaking machine on drying paper which ultimate dryness is in range of 35–50 %. In this respect 60–45 % water is dried, resulting in paper industry is the second followed by as per steel industry cost of heat per unit of output. It is possible to essentialy reduce cost of heat for drying section of papermaking machine by increasing paper dryness in foutof drying section. This can be achieved when using hot pressing paper.
The aim of work is to experimentally determine the kinetic patterns and technological parameters of hot pressing.
The result of study is presented by graphics dependances of ultimate dryness fluting on time spent in the area at different linear extrusion pressure and temperature of hot shaft.
In this paper, the experimental kinetic studies of hot pressing paper corrugating (fluting) are conducted. Based on experimental data dryness fluting dependences on time spent in the area of extrusion temperature shaft, are obtained, linear pressure of the press and mass per square meter fluting.
Investigation of dehydration were conducted with samples fluting with 120 and 160 g/m2 and 20 % of the initial dryness, at a papermaking machine speed 10, 20, 30 m/min, a linear pressure between the press rollers 10, 14, 19 kN/m, the surface temperature of the upper press shaft inlet footprint 100, 150, 200 ºC.
The results of study show that hot press expend basic parameters of the basic design of existing presses and the latest design shoe presses. The kinetic patterns and technological process parameters can be used to design industrial hot press. Hot presses implementation in production will significantly reduce the cost of fuel and gas in papermaking.
Keywords: paper web; hot pressing; kinetic laws |
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| ISSN: | 2617-9741 2664-1763 |