Current status of paper tube/paper shaft drying
1. Large-scale factories mostly use electric heating ovens, which consume large amounts of electricity and are costly.
2. The high temperature of the electric heating drying method is likely to cause the uneven heating of the paper tube/paper shaft and the deformation and degumming on business trips. The excessively high temperature of electric heating may even cause baking or fire in severe cases.
3. The life of the general heating tube is three to five months, and it is frequently maintained and replaced.
4. Steam drying is used in some factories. Due to improper control of the steam temperature, it is easy to cause the temperature to be too high and cause drying quality problems.
5. Small-scale factories use natural or air-dried methods. The production cycle is long and the efficiency is low. Affected by the weather, continuous production is not possible. The labor intensity is high, and the quality of drying is difficult to effectively control.
Several important questions
1. Temperature-The drying temperature of the paper tube is relatively high, generally above 45°C.
2. Humidity---the water content in the paper tube is not large, the main glue used for bonding when the paper tube is laminated and produced. Controlling dehumidification can save energy.
3. Drying time---The general time for straight-through drying is 8-10 hours; this has a lot to do with the shaft diameter, thickness, and glue performance of the paper tube.
4. Straightness/roundness---For many paper tube products, it is very important to maintain the straightness and roundness of the paper tube after drying; the axial and radial deformation of the paper tube must be controlled during the drying process .
5. Hardness/strength---this is also an important indicator of paper tube quality.
Naisida solutions
1. Use a high temperature dryer to dry the paper tube/paper shaft. The drying process has low energy consumption and effectively reduces operating costs.
2. The drying process is heated by hot air medium, and the temperature distribution is reasonable.
3. The paper tube is evenly heated, which reduces the amount of deformation of the paper tube in the axial and radial directions, effectively reducing the hidden dangers of drying quality caused by insufficient roundness, straightness and strength, and the drying effect is good.
4. It is safe and reliable, and there is no danger of overheating or burning during the drying process.
5. The drying process is automatically controlled by the temperature and humidity system with high precision. Effectively avoid the phenomenon of non-drying or over-drying caused by manual manipulation. Reduce labor intensity and reduce operating costs.
The brand NAISIDA of Guangdong Aoyu Electrical Appliance Co., Ltd. mainly develops and sells "household dehumidifiers, commercial dehumidifiers, industrial dehumidifiers, fresh air purifying dehumidifiers, cooling dehumidifiers, temperature regulating dehumidifiers," with constant temperature and humidity products. Constant temperature and humidity machine, rotary dehumidifier, ultrasonic humidifier, wet film humidifier and non-standard product development".