Double cone rotary vacuum dryer is a new power equipment and vacuum technology combined, it has a series of advantages and vacuum drying, vacuum drying, the long cycle, low efficiency, in general the materials in the drying process than conventional methods, can improve work efficiency 4 to 10 times. With dry high yield, good quality, low processing cost and the like, double cone rotary vacuum dryer is a set of electronics, mechanics, thermodynamics, vacuum science, control science and other disciplines for the integration of high-tech products, is the basis for in-depth study of process migration changes, internal and external heat exchange and vacuum condition analysis of seven the advantages in the process of drying on the matter of microwave vacuum drying equipment, a new technology, developed.
Double cone rotary vacuum dryer used in process should pay attention to the bulk density of charge and the material, the bulk density, loading and material double cone rotary vacuum dryer (of a unit volume of material quality), under normal circumstances, design the proportion of materials by 0.6 Bei /cm3 to calculate. If more than the proportion in real time, the flash dryer production still according to the existing theory to charging, one will affect the efficiency of drying materials; two is the long time operation leads to the decrease of motor, reducer and sprocket chain, life, until can't use. In addition, some manufacturers in pursuit of production and workers operate blindly, regardless of its filling rate (frozen actual loading volume and dry drier than simplified volume), leading to quality problems of equipment operation and product double cone rotary vacuum dryer continuously. And double cone rotary vacuum dryer filling rate is usually between 30%~50%.
If used improperly, double cone rotary vacuum dryer will appear as curved, sealing sleeve damage, deformation and fracture of the filter head vacuum drier phenomena such as vacuum tubes in the drying process, this is because in the outside air in the drying process (referred to as venting) into the backwash filter head, when the body has reached a higher vacuum degree, will cause the strong impact of positive and negative flow and damage the vacuum pumping system. Note: in the material drying after emptying to vent tank, must the flow control valve for emptying dehumidifying dryer, namely the first valve slightly open, the tank vacuum degree decreased gradually and then slowly increase.
Double cone rotary vacuum dryer will often appear vacuum is not enough or too high in the drying process, which is usually 3 reasons: (1) the vacuum end mechanical seal leakage; (2) the vacuum pipeline leakage or blockage; (3) the filter blocked plastic dryer plug. This needs to be examined in the use process, at the same time to maintenance, cleaning etc.. It is worth mentioning are: manufacturing plant should be maintenance terms according to different models of the main parts in the preparation of instructions for use, as far as possible the detailed. Such as filters, how much time need cleaning, replacement or in what stone dryer circumstances change, usually use the attention points etc..
Double cone rotary vacuum dryer noise is too large and the inlet, outlet leakage
(1) because of the loose, worm gear reducer, bearing damage, damage to the application of AC bad chain too loose or too tight caused by excessive noise, just regular inspection, timely troubleshooting
(2) in normal, outlet leakage is due to seal damage, plastic dryer should be replaced |
