2013年10月18日星期五

heavy duty slurry pumps suitable for strong abrasive, high density, highhead slurries


Series EHM(R), EGM, EMM, ELM mining slurry pump are widely used in the mining,metallurgy, petrochemical, coal washery, power plant, dredging, buildingmaterial and other industrial departments etc. Series EHM and EGM slurry pumps are heavy duty slurry pumps suitable for strong abrasive, high density, highhead slurries, while EMM and ELM re middle and light duty pumps of higher priceperformance ratio in transporting middle and low concentration and corrosiveslurries.
Typical Application:
  • Fine ore slurry transporting
  • Tailing transporting
  • Hydrocyclone Feed
  • Coal and power plant ash
  • Coal washer processing  
  • Mine and mineral processing
  • Alumina Industry
  • Strong abrasive and high density slurry

Advantages of horizontal design:
  • It is easier to install, inspect, maintain, and service because its rotor and internals are easily accessible.
  • It can be coupled directly to a variety of drivers including electric motor, engine, and turbine (steam, gas or power recovery hydraulic turbine.)
  • It can be supplied in either overhang design for low suction pressure service, or in between-bearing design for high suction pressure service.
  • It can be supplied in various nozzle configuration to simplify, or match the external site piping. The nozzle configuration can be of end suction top discharge, top suction top discharge, or side suction side discharge.
  • Its low headroom requirement makes it suitable for most indoor installations.

Advantages of vertical design:
  • It requires a smaller footprint and is suitable for 
    installation where the ground surface area is limited, or is at a premium.
  • With a vertical line shaft pump the impeller setting below the ground can be lowered to increase the site NPSHA.
  • It is suitable for higher temperature service. Because of its radial-split case design it can be centerline-mounted for even thermal expansion.
  • It is suitable for higher pressure service because of its simplified bolting and confined-gasket design.

Vertical slurry pump occupies a limited area and use sufficiently the space in verticaldirection. Series EVM(R) vertical sump pump are designed to transport the slurry inpool and widely used in the mining, metallurgy, coal washery, power plant, andother industrial departments, etc.
Typical Application
  • Mine and mineral processing
  • Hydrocyclone feed
  • Coal and power plant ash handling
  • Coal washery draining
  • Steelworks waste residue treatment
EHM/EVM series are more anti-abrasive while EHR/EVR series are more suitable to transporthighly corrosive slurries or slurries with smaller granule without sharp edges.


EHM(R)
  • The bearing assembly of this kind of abrasive slurry pump is cylindrical structure. It can adjust the space between impeller and front liner easily and be removed completely.
  • The shaft seal uses the packing seal, expeller seal and mechanical seal.
  • The discharge branch can be positioned at intervals of 45 degrees by request and oriented to any eight positions to suit installations and applications.
  • The drive type could be DC (direct connection), V-belt drive, gear box reducer, hydraulic couplings, VFD, SCR control, etc.
  • It can be installed in multistage series to meet the delivery for long distance.
  • The cover plate, frame plate, bearing assembly and so on could be interchangeable with wear-resistance metal or rubber.

EVM(R)
  • EVM(R) sump pump doesn’t need any seal and the seal water. It could work normally even if the suction volume is not enough.
  • The sump pumps are of single casing structure with the advantages of light weight, small volume, easy installation and so on.
  • The casing of type EVM pumps are made of wear-resistant metal. The wear parts are made of high chromium for the EVM series and rubber lined for the EVR series.
  • The vertical slurry pump transmission shaft and suction pipe could be chosen according to liquid surface of the slurry pool. The pump could run smoothly under various speeds.

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