The pulse airflow dryer uses high-speed hot air flow to suspend the dried material, and the material comes into full contact with hot air, forming a complex heat exchange process of thermal conduction, convection, and radiation, thereby achieving the purpose of drying the material. During the drying process, due to the use of variable cross-section air ducts, the velocity of the airflow constantly changes, resulting in intense relative motion between the material and the hot air. The vaporized surface and drying medium are constantly updated, achieving a rapid drying effect. Pulse airflow dryers have been widely used in various industries such as chemical, pharmaceutical, and food.
The maintenance and upkeep of pulse airflow dryers mainly include the following aspects:
♦ Cleaning equipment: Regularly use soft brushes and mild cleaning agents to clean the surface of the equipment, removing dust and stains. At the same time, check and clean the internal filters or screens of the equipment to ensure smooth ventilation.
♦ Lubricating components: For the moving parts inside the equipment, such as bearings, gears, etc., regularly check the condition of the lubricating oil and add or replace it as needed to reduce friction and maintain normal operation.
♦ Testing equipment performance: By using relevant testing equipment, regularly check the vacuum degree, temperature control accuracy, and working condition of each component of the equipment. According to the test results, adjust and repair the equipment in a timely manner to ensure its normal operation.
♦ Handling special situations: When the equipment produces abnormal noise, odor, air leakage, etc., it is necessary to promptly troubleshoot and repair the equipment. In addition, corresponding protective measures should also be taken when the equipment is out of use or stored for a long time.
♦ Reasonable grounding: Ensure that the vacuum dryer casing has a reasonable grounding device to ensure safe application.
♦ Pay attention to environmental conditions: The vacuum dryer should be used in a natural environment with an air humidity of ≤ 85% RH, no corrosive gases in the surrounding area, no obvious vibration sources, and the presence of strong magnetic fields.
♦ Check electrical connections: Ensure that the wires are securely connected and not loose or detached. At the same time, check the working status of electrical components and switches to prevent equipment damage and safety accidents caused by circuit faults.
♦ Avoid long-term work: Mechanical pumps should not work for long periods of time. After reaching the required vacuum level, the vacuum valve and mechanical pump power should be turned off to extend the service life of the mechanical pump.
♦ Maintenance of exhaust valve: If the rubber plug of the exhaust valve has difficulty rotating, it can be lubricated with appropriate vegetable oil.
♦ Long term disuse maintenance: If the equipment is not used for a long time, the exposed electroplated parts should be cleaned and coated with neutral grease to prevent corrosion, and covered with plastic film dust covers. They should be placed in a dry room to avoid damage to electrical components caused by moisture.