Mechanical seal is a important device for the pastillator. It is installed in the dropping header assembly.
The transmission shaft runs through the dropping header, there is a circumferential gap between the shaft and the equipment, and the materials in the equipment leaks out through the gap. If the pressure in the equipment is lower than the atmospheric pressure, the air will leak into the equipment, so there must be a shaft sealing device to prevent the leakage.
It consist of moving ring, stationary ring, cooling device and compression spring.
