Three Common Sealing Methods For Slurry Pumps

1. The commonly used sealing form of the slurry pump is that the filler added by the filler seal is in full contact with the shaft to prevent the conveying medium from passing, so as to achieve the purpose of sealing. This type of sealing may cause corrosion to the filler when transporting corrosive materials in the slag slurry pump. Therefore, the disadvantage of this sealed form is that the slurry pump end cannot transport toxic and corrosive liquids.

2. Mechanical seal The mechanical seal is that the dynamic ring and the static ring of the slurry pump are in close contact with the spring in the axial direction to achieve the sealing purpose. The mechanical seal is reliable and there is almost no leakage of the slurry pump, but the friction surface should be protected to avoid wear during installation. The seal is mainly suitable for conveying flammable, explosive, high temperature, high pressure, and strong corrosive liquids to make up for the lack of packing seals.

3. Sub-impeller seal The sub-impeller seal prevents liquid from leaking through the reverse centrifugal force of the impeller. The shaft seal of the auxiliary impeller does not require shaft sealing water and does not dilute the slurry. This type of slurry can be given priority if the slurry is not allowed. seal.