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Slurry Handling Equipment Pumps

millMAX Pumps
Krebs millMAX™ severe-duty slurry pumps have a unique design developed exclusively for grinding mill discharge duties and other abrasive slurries.
FLSmidth Krebs offers wet end conversions or complete pump assemblies to meet customer desires and demands.
The millMAX™ Pump features a patented on-line wear clearance adjustment, which minimizes cost per ton pumped compared to conventional hard metal and rubber lined pumps through:

Increased Wear Life
Lower Power Consumption
On-line Wear Clearance Adjustment
Increased Mill Throughput
More Consistent Hydrocyclone Separation
Less Downtime

The primary applications for the Krebs Metal Slurry Pumps are mill discharge, crusher slurry, sand and aggregate or any coarse solids or other severe, abrasive slurries especially in the copper, gold, lead-zinc, coal, or phosphate plants. The most dramatic savings will be in these applications, though savings will also be realized on fine solids, like iron ore or kaolin.
The key advantage of the Krebs Metal Slurry Pumps is the 10% to 30% lower power, long even wear life and less pump downtime, which results in lower cost-per-ton pumped, along with better cyclone separation.

Dorr-Oliver Centrifugal Pumps
Handle Corrosive and Abrasive Solids with Our Heavy-Duty Centrifugal Pumps Olivite™ centrifugal pumps are constructed of heavy metal, and are lined with 1/4-inch highly corrosion and abrasion-resistant liner materials (Kynar® impeller or Hypalon® liner). Olivite pumps are available in direct drive or V-belt design. With the ability to handle corrosive and abrasive solids, Olivite pumps are the superior solution for handling acids, alkalies and slurries.

Olivite™ OB-1 Pumps – Principal Benefits
The Olivite OB-1 pump can be operated under severe high temperature and high pressure conditions due to its proven design of lightweight Kynar impeller reinforced with fine glass or carbon. Can reach maximum temperatures of 250°F using Kynar lining or 215°F with Hypalon liner, unless restricted by the compound being pumped. The heavy-duty construction ensures that shape is retained, while its low weight and highly efficient vane geometry reduces shaft deflection, resulting in longer bearing life and improved pump performance.

Olivite™ OB-1 Pumps – Applications
The pump is commonly used with acid, alkalies, and chlorine compounds at maximum pressure of 180 psi. Olivite OB-1 Pumps are available in three sizes.

Olivite™ ANSI Pumps – Principal Benefits
These pumps are designed to ANSI specifications with back pull out, and include solid Kynar impellers for pumping applications involving nearly all corrosive solutions, hot as well as cold. Our ANSI Pump is constructed with vulcanized lining material (Kynar or Hypalon) mechanically locked into the ductile iron metal casing so it won’t shake loose and enables longer service life. The impeller design is optimized for greater efficiency and very low Net Positive Suction Head (NPSH) and can be adjusted externally, requiring no seal readjustment or special tools, thus simplifying operation.

Olivite™ ANSI Pumps – Applications
Built to strict ANSI standards and offering components that are more flexible and reliable than most competitive pumps, the Olivite ANSI Pump can be used in a wide variety of chemical applications. Olivite ANSI Pumps are available in two sizes.

Type L Pumps – Principal Benefits
Constructed of cast iron or 316 stainless steel, Type L pumps are long lasting and essentially maintenance free. They are designed for discharge heads up to 120 feet Total Dynamic Head (TDH) and handle flows up to 350 gpm. The impellers and casings have been designed for maximum NPSH advantage, as well as trouble-free operation and long life.

Type L Pumps – Applications
Primarily used for pumping filtrates, the Type L pump’s stainless steel construction is especially suited to food and chemical processing applications. Parts are interchangeable on 1-1/2” and 2” models minimizing parts stocking. Mechanical seals or packed boxes are available for greater flexibility. Choose from direct connected or optional V-belt drive assemblies.

Dorrco Positive Displacement Pumps
Dorrco® Pumps are rugged duplex diaphragm pumps which permit stroke adjustment while in operation.

Designed by Dorr-Oliver expressly for handling the thickened underflow from sedimentation units. Dorrco positive displacement double diaphragm pumps are constructed of extra heavy-duty materials for tough, long-lasting service in extreme environments. These pumps can be installed at liquid level in thickener applications to prevent flooding or start-up problems. The pump operates with a smooth action, which prevents agitation and keeps the slurry from degrading during transport. Dorrco pumps come in two series: Type W and VM.

Principal Benefits
The Dorrco pump enjoys many advantages over centrifugal pumps used in heavy-duty service. Because drive motion is at right angles to the diaphragm, you can expect the diaphragm to have a greater life. Anti-friction ball bearings also provide for a smooth pumping action which reduces friction and wear on moving parts. The Dorrco pump utilizes standard horizontal electric motors for lower power consumption. A stroke adjustment handwheel allows for easy adjustment of stroke length to vary discharge rate while the pump is operating. All components of the pump are above ground and easily accessed for maintenance.

Applications
Dorrco Pumps have been used successfully in metallurgical processes for over sixty years. The pump can be used with thickener and clarifier underflow, pulp mill liquors, slurries with heavy solids content, abrasive and corrosive alkaline or acid slurries. Flow ranges from 9 gpm (2 M3/H) to 600 gpm (136 M3/H) with multiple models are available for application selection. Protective rubber lining is also available for acidic/alkaline conditions.

Dorr-Oliver Gorator Pumps
The Dorr-Oliver® Gorator® Pump sizes, reduces, disperses, separates, delumps, grinds, chops, macerates and even pumps.

The Gorator works on a simple inclined rotor principle, which gives the machine its self-cleaning, non-clog, trouble-free characteristics under the most difficult conditions.

An impeller, taking the form of a flat plate, is mounted at an oblique angle on the end of the pump shaft. Notched teeth are located in peripheral stator bars to chop the material during passage through the pump. Rotation of the impeller reduces the materials and discharges it radially through the outlet.

The Gorator can be adapted to meet a wide variety of needs in an ever-increasing number of industries. It is easily fitted to meet individual reducing needs by spacing the liner bars to exactly the position required for various size particulates from 3/16” to 2 ½”. Synthetic fibers, rags, plastics, raw sludges, slurries, slaughter-house residue, high-viscosity materials, chemical residue, industrial waste and debris are but a few of the materials being successfully handled by the Gorator. Applications serving the wastewater industry for more than thirty years has proven this rugged machine. Material is reduced to a slurry so that material handling of solids, and process equipment clogging, is eliminated.

The 4 x 4 Type PP Gorator® Grit Pump is a non-clogging, angled rotor pump ideally suited for pumping grit. The V-shaped steel rotor is mounted so that solids can pass through the pump unobstructed. The pump casing is wear and impact resistant, heat-treated Meehanite WS cast iron. It has a quick clean-out port for easy access to the pump interior and rotor without disturbing the piping. It can be direct drive or v-belt drive to meet various requirements. Forty years of experience has proven this pump in this rugged application.

ODS Air-Operated Diaphragm Pumps
Heavy Duty and Multi-Purpose
Dorr-Oliver® ODS® Air-Operated Diaphragm Pumps last two to three times longer than their competitors.

Its sturdy construction guarantees it will pump sludges and scum that no other unit can handle and will efficiently transfer anything that moves through a pipe. There is no unit like it.

You can refer to an easy to follow Pump Selection Guide to properly size and specify the right ODS Pump for a given application in the available brochure. The ODS Pump can be automated to meet capacity and process requirements for maximum process efficiency.


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FLSmidth Minerals

Slurry Handling Equipment Pumps