Froth/Foam Pump, suitable for dry conveying of abrasive or corrosive slurry containing foam, various flotation processes

PM Type Froth Pump

PM series vertical foam pump, widely used in metallurgy, mining, coal, chemical, and other industrial sectors. Suitable for dry conveying of abrasive or corrosive slurry containing foam. This series of pumps can effectively eliminate the foam in the slurry when working; when the incoming material is insufficient, it can still work normally. It is especially suitable for various flotation processes and is an ideal product for conveying foam-like slurry.

Structure Description

PM series foam pump is simple in structure, easy to install and use, and has a high degree of generalization.

1. Transmission part: The transmission part of this type’s pump is common to LP and LPR series slurry pumps. According to the user’s needs, a direct drive or belt drive can be selected.

2. The material box adopts a steel structure, with a tangential inlet and overflow box. The overflow box sends the excess incoming material back to the material tank; the tangential inlet makes the slurry enter the pump quickly, which plays the role of eliminating part of the foam,

3. Pump head: The structure of the pump head is the same as that of ZBD and ZBB series slurry pumps, and it is a double pump shell structure. The pump body, pump cover, front guard plate, etc. are common to slurry pumps with the same diameter as ZBD and ZBB series. Depending on the conveying medium, the material of the transflux parts can be metal, rubber, or other non-metallic materials. For metal materials, the pump body, pump cover, sheath, front guard plate, etc. are common to ZBD, ZBB series slurry pumps with the same diameter; for rubber or other non-metallic materials, the front sheath, rear sheath, etc. are the same as ZBD. R The series of slurry pumps with the same diameter are common.

Naming Rules

50PM-230

• 50-Discharge diameter (mm)
• PM-PM Type froth pump
• 230-The nominal diameter of the basic impeller (mm).

Specification

Maintenance Tips

To make the pump run safely, daily maintenance is necessary, please pay attention to the following aspects:

1. Adjustment of the impeller
2. In order to ensure the high-efficiency operation of the pump, the clearance between the impeller and the guard plate must be adjusted in time.
3. The steps are as follows: stop the pump, loosen the bolts that fasten the bearing body; add an adjusting shim between the connection between the bearing body and the material box, so that the bearing assembly will move upward, and at the same time rotate the shaft in the direction of the pump by hand, until the impeller and the The guard plate is slightly rubbed; tighten the fastening bolts, and re-check whether the impeller rotates normally. For metal lined pumps, the impeller to guard clearance is 0.5-1 mm. The rubber-lined pump moves the bearing assembly down to make the impeller contact the sheath. According to the total movement of the bearing assembly, take this half as the gap between the impeller and the sheath.
4. Bearing lubrication
5. When the shaft is assembled, an appropriate amount of grease has been added. During operation, grease can be added regularly. Overfilling with grease can cause the bearing to heat up. The amount and cycle of grease injection varies greatly with different working conditions, and experience must be gradually accumulated in use.
6. The standby pump is stationary for a long time, it is recommended to rotate the bearing 1/4 circle by hand every week, so that the bearing can bear the static load and external vibration evenly.