Slime dryer is an important device for drying materials in recent years due to slime dryer, saving work of the coal resources has been a very big step forward compared to the previous, slime dryer Machine turns out to be for us to achieve energy saving and environmental protection has made important contributions. So much slime normal operation of the dryer we are very concerned, slime dryer often seals Mifengbuyan conditions, technicians who do this as Cheung Machinery Manufacturing Co. on slime dryer tightness has done a series of studies, the production of the dryer above the sealing device is basically no problem. Slime dryer under normal operating conditions in a state of negative pressure, this state would often crack chain department, in order to ensure continued slime dryer can be hot and dry, we need to slime dryer sealing machine when setting strict identification. When to equipment designed to do to adapt the shape of the above error in the presence of the cylinder, while also axially reciprocating motion when the cylinder motion; structure should be as simple as possible; sealing performance of the sealing device must be better, good wear resistance , ease of maintenance and repair, etc. This is the requirements and characteristics of the sealing device, sealing device structure, there are four forms of the labyrinth, radial contact, positive-pressure steam-sealed axial contact and so on. Different forms of the seal structure, its use is also very different, more suitable occasion labyrinth gas pressure is small, while the compatibility of this labyrinth structure is also very good, can be used in combination with other ways ; radial contact is rarely used in general, under normal circumstances, even if the use of carbon is used in less drying material for drying; pressurized steam seal type is mainly used in the cylinder and annular channel between the insulation jacket. Tightness slime dryer set is very important, with a direct relationship to the normal operation of the entire slime dryer, so manufacturers dryer during the production process must pay attention to sealing the set.