Brief description of the use of vacuum drying ovens诀窍

Vacuum drying ovens are widely used in research fields such as biochemistry, chemical pharmacy, medical and health, agricultural research, environmental protection, etc., for powder drying, baking and disinfection and sterilization of various glass containers. It is especially suitable for fast and efficient drying of heat sensitive, easily decomposable, oxidizable substances and complex ingredients.

The following vacuum dryer use:

1. The vacuum box casing must be effectively grounded to ensure safe use.

2. The vacuum box should be used in an environment where the relative humidity is ≤ 85% RH, there is no corrosive gas around, no strong vibration source and strong electromagnetic field.

3, the vacuum box studio is not treated with explosion-proof, anti-corrosion, etc., and it is not allowed to dry the items that are easy, explosive, and prone to corrosive gases.

4, the vacuum pump can not work for a long time, so when the vacuum reaches the requirements of dry goods, the vacuum valve should be closed first, then the vacuum pump power supply should be turned off. When the vacuum is less than the requirements of the dry items, then the vacuum valve and the vacuum pump power supply are turned on, and the vacuum is continued. This will extend the life of the vacuum pump.

5. If the dry items are wet, add a filter between the vacuum box and the vacuum pump to prevent the humid gas from entering the vacuum pump and causing the vacuum pump to malfunction.

6. Dry items should be light weight and small in size (small granules) after drying. Vacuum should be added to the working chamber to prevent the dry matter from inhaling and damage the vacuum pump (or solenoid valve).

7. After the vacuum drying box is used for many times, it will not be able to vacuum. In this case, the door seal should be replaced or the door buckle on the box should be adjusted to extend the distance. When the drying temperature of the vacuum box is higher than 200 °C, slow air leakage will occur. At this time, remove the back cover of the box and loosen the heater base with an Allen key, replace the sealing ring or tighten the heater base to solve.

8. If the rubber plug of the bleed valve is difficult to rotate, it can be lubricated with a proper amount of grease on the inside.

9. In addition to maintenance, the left side cover cannot be removed to avoid damage to the electrical control system.

10. Vacuum drying oven should be kept clean. Do not wipe the door glass with a reactive chemical solution and wipe it with a soft cotton cloth.

11. If the vacuum drying oven is not used for a long time, wipe the exposed plating parts and apply neutral grease to prevent corrosion. Put on the plastic film dust cover and place it in the dry room to avoid damage to the electrical components. Affect.

Wearing a lumbar fixation device is to limit the flexion of the lumbar spine and other movements, especially to assist the back muscles to limit some unnecessary forward flexion movements, so as to ensure that the damaged lumbar intervertebral disc can be fully rested locally.
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