What features are required for a containment hood to meet production conditions

In the drying section of the papermaking industry, the value of the airtight hood is relatively high compared to other drying equipment, because it is an important supporting equipment in the papermaking equipment. For equipment that requires high drying skills, the airtight hood is also a drying equipment that can ensure its quality. However, when the airtight hood is designed to meet some conditions, the paper machine can work normally.

1. A closed high temperature environment is provided in the production line of the paper machine, which is beneficial to the drying of the paper sheet, reduces the exhaust air volume, and improves the heat recovery effect of the exhaust air of the hood. The most popular design in the world is that the dry bulb temperature in the hood is 80-85 ℃, and the dew point temperature is 58-62 ℃.

2. The airtight air hood in the paper machine production line must provide convenience for monitoring, operating and maintaining the running condition of the paper machine, and must be able to facilitate paper threading and roll change.

3. The high temperature and high humidity in the airtight air hood of the paper machine production line are particularly likely to cause condensation. The design of the air hood must completely prevent condensation and dripping on the top plate of the air hood.

4. As far as possible, the gas in the air hood of the paper machine is not released to the workshop.

5. The airtight air hood in the paper machine production line should be able to adjust the longitudinal exhaust air volume of the paper machine to ensure the exhaust air volume required by each drying part of the paper web.

6. The airtight hood in the paper machine production line should fully consider lighting, fire protection and other facilities to meet the needs of all aspects.

7. The airtight air hood in the paper machine production line occupies a large area in the paper machine workshop. Therefore, the appearance of the air hood must be beautiful and durable.

Shandong Fengxin Technology Co., Ltd. specializes in paper web ventilation and drying equipment. We have achieved good results in research and development, design and production, and can provide you with system design, solutions or transformation of the above equipment. If necessary, please contact us.