Wuxi Datang Drying Equipment Manufactory
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Vacuum Drier Of The Service Life
- Aug 01, 2017 -

Because the loading capacity of the dryer is related to the bulk density of the material (the mass of the material per unit volume). Under normal circumstances, the specific gravity of the dryer is calculated according to 0.6 g / cm3, and if it exceeds this proportion, Material drying efficiency; the other hand, long-term operation, Vacuum Drier will reduce the motor, turbine reducer and sprocket, chain, bearing and other life. In general, Vacuum Drier the filling rate of the double cone rotary vacuum dryer (the ratio of the actual filling volume to the volume of the drying cylinder) is usually between 30% and 50% and can not cover the vacuum cover in the double cone dryer, Drying rate.

In the actual production applications, Vacuum Drier in the vacuum, the double cone rotary vacuum drying machine will appear such as vacuum tube bending, sealing sleeve damage, Vacuum Drier filter deformation and even fracture phenomenon, this is because the process of drying into the tank into the tank back to filter Head, this time the tank has reached a higher degree of vacuum, will cause a strong impact of positive and negative airflow damage to the vacuum system. Therefore, after the drying of the material needs to be empty after the tank, Vacuum Drier emptying must use the exhaust valve to control its flow, that is, the first valve to open a little, Vacuum Drier until the vacuum in the tank gradually reduced and then slowly increase; or add Pressure reducing valve, and then control the flow into the air.

Double cone rotary vacuum dryer in the drying process often appear to be too low or too high vacuum problem, which will not only affect the efficiency of material drying and material quality, Vacuum Drier but also affect the production safety of the workshop. Although the higher the vacuum, Vacuum Drier the more conducive to moisture vaporization at low temperatures, but the vacuum is too high is not conducive to heat conduction, affecting the drying effect of the material.

Causing the vacuum is too low or too high, there may be four reasons:

(1) mechanical seal leakage at the vacuum end;

(2) leakage or clogging of the vacuum pipe;

(3) filter clogged;

(4) due to hot water or steam temperature is too low, Vacuum Drier the material solvent is difficult to evaporate. To solve such problems, you need to consider the dryer hot water and steam temperature, and in the course of the use of regular inspection, while maintenance, cleaning and so on.

In the actual production, for the rotating cylinder of the glass-lined liner, if used and maintained incorrectly, easily easy to damage. Especially for the acidic and alkaline materials, Vacuum Drier dry material is not clean, the material easy to wall, damage the cylinder liner, affecting the service life of the dryer. To solve such problems, only according to the nature of the material to choose the appropriate dryer, Vacuum Drier in the course of the material out of the material clean, regular inspection, while maintenance, cleaning and so on.

In the use of the dryer, due to the loose feet of the dryer, worm gear (gearbox) damage, bearing damage, the chain is too loose or too tight and other reasons caused by excessive noise, for reducer, bearings and chains Damage, just check regularly, pay attention to add lubricants, Vacuum Drier timely troubleshooting, do preventive maintenance.