Qinyang PingAn Light Industry Machinery Co., Ltd.
30 years experience in paper making industry
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Paper machine dryer section
Description
Dryer section is the key part of paper machine. The cast iron dryer for paper machine is a key part of paper drying, which is class 1 pressure vessel. The number of cast iron dryers accounts for about 2 / 3 of the total pressure vessels in the paper industry. Generally, the materials used for drying cylinder are HT200 and HT250. In order to increase the smoothness of paper surface, the outer surface of the dryer should be polished and the inner surface should be polished to keep the thickness of the whole dryer wall consistent, so as to ensure the safety, balance and uniform heat transfer of the dryer. The function of the dryer is to dry the moisture in the paper and finish the paper surface.
Main specifications
| Diameter | Material | Design pressureHardness | Face length | Working speed | Roughness | Hardness |
| Dia1500mm | HT250-HT350 | 0.3-1.1MPa | 1450-10000mm | 500-1200m/min | 0.1-0.4Ra | HB190-240 |
| Dia1800mm | HT250-HT350 | 0.3-1.1MPa | 1450-10000mm | 500-1200m/min | 0.1-0.4Ra | HB190-240 |
| Dia2000mm | HT250-HT350 | 0.3-1.1MPa | 1450-8000mm | 500-1200m/min | 0.1-0.4Ra | HB190-240 |
| Dia2500mm | HT250-HT350 | 0.3-1.1MPa | 1450-8000mm | 500-1200m/min | 0.1-0.4Ra | HB220-260 |
| Dia3000mm | HT350 | 0.3-1.1MPa | 1450-8000mm | 500-1200m/min | 0.1-0.4Ra | HB230-260 |
| Dia3660mm | HT350 | 0.3-1.1MPa | 1450-8000mm | 500-1500m/min | 0.1-0.4Ra | HB230-260 |
| Dia3800mm | HT350 | 0.3-1.1MPa | 1450-8000mm | 500-1500m/min | 0.1-0.4Ra | HB230-260 |
| Press rolls | HT250-HT350 | 0.3-1.1MPa | 1450-10000mm | 200-1200m/min |
