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In the hot air drying process, the following issues need to be paid attention to:
1. Temperature control: The temperature in the hot air drying process is the key factor affecting the drying effect. Too high a temperature may cause thermal damage to the material, while too low a temperature will prolong the drying time. Therefore, the drying temperature needs to be strictly controlled to ensure that the material is dried at the appropriate temperature.
2. Ventilation control: The operation status of the ventilation equipment directly affects the drying effect. If the ventilation is poor, the moist air cannot be discharged in time, which will lead to a decrease in the drying rate and even cause the material to become moldy and deteriorate. Therefore, ventilation equipment needs to be checked regularly to ensure that it is functioning properly.
3. Material uniformity: In the hot air drying process, the material needs to be evenly distributed in the drying room to ensure uniform drying. If the material is stacked too thick or unevenly distributed, it will lead to uneven drying and affect the quality of the product.
4. Equipment maintenance: The hot air drying equipment needs to be maintained regularly to ensure its normal operation. For example, equipment needs to be cleaned regularly, checked for damage or corrosion of cables, pipes and heaters, and for replacement of damaged parts.
5. Operation safety: The hot air drying process involves high-temperature operation, so it is necessary to pay attention to the operation safety. Operators need to wear protective gloves and masks to avoid contact with hot equipment and inhalation of harmful gases. At the same time, it is necessary to ensure that the equipment is well grounded to avoid safety accidents caused by static electricity.
To sum up, it is necessary to pay attention to temperature control, ventilation control, material uniformity, equipment maintenance and operation safety in the hot air drying process to ensure the drying effect and product quality.