Taboo in the operation of double cone rotary vacuum dryer

The double cone rotary vacuum dryer is a new generation drying device developed by our company in combination with domestic similar product technology. The double cone vacuum adopts one chain and two elastic connection modes, so the equipment runs smoothly. The specially designed process fully embodies the good concentricity of the two shafts. Both the thermal coal and the vacuum system use a reliable mechanical seal or a rotating joint of American technology.

Double cone rotary vacuum dryer working principle:

Thermal energy (such as hot water, low-pressure steam or heat-conducting oil) is introduced into the closed interlayer, and heat is transferred to the dried material through the inner casing. Under the power drive, the tank body is rotated slowly, and the materials in the tank are continuously mixed to achieve the purpose of strengthening the drying.

The material is in a vacuum state, and the vapor pressure drops to make the water (solvent) on the surface of the material reach a saturated state and evaporate, and is discharged and recovered by the vacuum pump in time. The water (solvent) inside the material continuously penetrates, evaporates and discharges to the surface. The three processes are continuously carried out, and the material reaches the drying purpose in a short time.

The double cone rotary vacuum dryer has no anti-explosion, anti-corrosion treatment, etc., and it is not allowed to dry the items that are easy, explosive and prone to corrosive gases. The double cone rotary vacuum dryer should be used in an environment where the relative humidity is ≤ 85% RH, there is no corrosive vacuum drying machine gas, no strong vibration source and strong electromagnetic field. If the item is wet, a filter can be added between the vacuum box and the vacuum pump to prevent moisture from entering the vacuum pump, causing the vacuum pump to malfunction. After repeated use, the double-cone rotary vacuum dryer 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 temperature of the vacuum box double cone rotary vacuum dryer is higher than 200 °C, slow air leakage will occur (except 6050, 6050B, 6051, 6053). At this time, the back cover of the double cone rotary vacuum dryer is removed. The hex wrench loosens the heater base, replaces the seal ring or tightens the heater base to solve it.

Double cone rotary vacuum dryer vacuum pump can not work for a long period of time, so when the vacuum reaches the requirements of the double cone rotary vacuum dryer, the vacuum valve should be closed first, then the vacuum pump power supply should be turned off, and the vacuum degree is less than that of the double cone rotary vacuum dryer. When the vacuum valve and vacuum pump power supply is turned on, the vacuum is continued, which can extend the service life of the vacuum pump. If the rubber plug of the bleed valve is difficult to rotate, apply a proper amount of grease to the inside. (such as Vaseline). Except for maintenance, the left side cover (except models 6090 and 6210) cannot be removed to avoid damage to the electrical control system.

Double cone rotary vacuum dryers should always be kept clean. Do not wipe the door glass with a reactive chemical solution and wipe it with a soft cotton cloth. If the double cone rotary vacuum dryer is not used for a long time, wipe the exposed plating parts and apply neutral grease to prevent corrosion, and put on the plastic film dust cover and place it in the chamber of the double cone rotary vacuum dryer. In order to avoid damage to the electrical components, it will affect the use.