What Are the Advantages of vertical froth pump？

The concept behind a froth pump is to avoid pumping air and to separate as much air as possible from the slurry before it reaches the pump impeller.

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The vertical froth pumps utilize the same principle as hydrocyclone separation where air is separated from the slurry in a vortex created by the impeller rotation and the tangential inlet to the pump’s conical sump.

This results in more efficient pumping at higher capacities and a smooth operation, free from pulsations caused by air locking.

Sala VF froth pumps are often used in applications that involve handling of air entrained slurries, such as flotation froth in base metal concentrators, phosphate and apatite washing plants and calcium carbonate upgrading plants.

They can also be utilized as a mixing and distribution unit, where dry powder has to be mixed with water, as well as with cement in ready mixed concrete and for grouting and injection mixing.

• Flow rates to 1 500 m³/h – 6 600 USGPM
• Heads up to 20 m – 65 ft

Typical applications

• Flotation froth pumping
• Phosphate and apatite washing plants
• Calcium carbonate upgrading plants
• Mixing and distribution units
• Cement plants

Standard pumps are supplied with parts in wear resistant Natural Rubber or High Chrome iron alloy, with a nominal hardness of 600 BHN. Other materials are also available.

The wear parts have large material sections for extra-long wear life and are designed for the toughest applications.

Parts in different materials are fully interchangeable and can be combined for optimum life.

The heavy-duty pump shaft is a cantilever design, hanging below the bearing housing. There are no submerged stuffing box, bearings or shaft seals. This design ensures minimum maintenance and eliminates any requirement for water flushing.

Impeller clearance is maintained by external axial adjustment of the shaft/bearing assembly. Bearings have double protection seals against the ingress of slurry.

The casing on the Sala VF froth pump is supported by a beam. The beam is either lowered by hand or a hydraulic jack, depending on the pump size. The beam can be turned out so that the “wet end” parts can be accessed by a lifting device.

Product Description

Overview

Specification

Model meaning

50QV-ZF

50: Pump discharge size in mm

QV:Frame type

The basic principle of the pump operation is to remove or partially remove the froth before the slurry enters the pumping. Its handling capacity is much higher than that of other types of slurry pump without shaft seal and sealing water. It is a perfect pump for handling frothy pulp.

The structure of pump head is double casing. All wet parts can be supplied in Ni-hard, high chrome alloy iron and pressure-moulded natural or synthetic rubber. The driver end can be exchanged with ZL pumps. The hopper-tank is fabricated with steel plate.

Its inner wall of the tank can be covered with liner according to different medium pumped.

The discharge branch can be positioned at intervals of 45 degrees by request and

Want more information on pump spare parts? Feel free to contact us.

oriented to any eight positions to suit installations and applications.

ZF: Zidong Pump brand Froth Pump

Model Flow rate Head Speed Efficiency Max solid Max power Suctiondiameter Dischargediameter (L/s) (m) (r/min) (%) (mm) (kW) inch inch 50QV-ZF 1.2-14.2 6.2-30.2 800- 20-45 35 15 4  2 75QV-ZF 3.0-41.5 6.5-29.5 700- 20-55 38 20 6  3 100RV-ZF 3-59 6.8-29.2 500- 20-55 55 40 6  4 150SV-ZF 10-118 6.8-25.2 350-680 20-55 63 75 8  6 200SV-ZF 64-186 5-24.8 350-680 20-55 70 110 10  8

Advantages

1. Easy installation & disassembly.

2. Integrated unit for layout flexibility.

3. Smooth operation of the open vortex created in the sump and vertical “wet end” inlet prevents air locking.

4. Cantilever design does not require submerged bearings or shaft seals.

5. Bearing assembly with double protection sealing arrangement to prevent ingress of slurry.

6. Wear parts are available in a variety of different materials.

7. Simplified maintenance.

Material

Structure

Performance Curve

Application

 ZF series of froth pump is widely used in metallurgy, coal, chemical,industrial sector. It is suitable for Suitable for handling

solids-liquids mixture, special for delivering frothy pulp generated in flotation machines in metalliferous and coal flotation circuits.

· Iron Ore Dressing Plant                                                

· Copper Concentration Plant

· Gold Mine Concentration Plant

· Molybdenum Concentration Plant

· Potash Fertilizer Plant

· Other Mineral Processing Plants

· Other industries