For all the dedication of a mine’s service staff to the really helpful finest practice in pump management, sometime, encountering instances of pump component put on and tear is inevitable – a matter of when and never if. And when it does happen, part put on inhibits pump efficiency. It is at that point the place, timeously, mines could have to noticeably consider retrofitting as a feasible possibility.
A rational business decision
In this environment, the place prices of capital equipment costs are increasing, alternative may be a sensible business decision. In an advisory targeted at mines and different industries, pump OEM, KSB Pumps, recommends retrofitting as a rational business determination: “Retrofitting is a superb various to buying a model new product and may be carried out on pumps no matter their meant use. It is equally suitable for industrial, water provide and waste water disposal purposes as well as for the power supply trade.”
It is only pure for mine operators to ponder buying new pumps. New pump models meet up to date requirements like improved power effectivity, compliance with new legal necessities (relating to emissions and safety), prolonged service life and know-how which produces working data. But this will not necessitate replacing an previous pump mannequin, KSB Pumps says, as retrofitting may give an previous pump a brand new lease of life, specifically in the following ways:
Save upkeep prices
Reduce power consumption
Achieve longer service life
Increase system availability
Comply with authorized necessities (e.g: TA-Luft, ATEX)
READ: Full-service functionality very important for dependable pump provide
Core areas in Retrofitting
The core focus areas in retrofitting are: hydraulic and mechanical modifications to the materials, above and past changes to the materials.
เกจวัดแรงดัน of the hydraulic modifications might involve:
Remachining of existing impellers
Installation of latest impellers for off-design situations
Optimisation of volute casing for off-design circumstances
Adjustment of the variety of stages (on multistage pumps)
Mechanical adjustments
The following are a few of the mechanical modifications:
Closed bearing brackets improve the smoothness of operation and prolong the bearing life
Installation of mechanical seal techniques
Employment of mobile floor put on rings to improve effectivity, rotor dynamics and dry working properties
Use of optimised supplies
The following are its a few of the materials that a variety of the optimised materials that could be used:
Super duplex chrome steel grades or nickel alloys
Ceramic mineral castings for impellers, wear plates, cowl and casing – for use with finely dispersed, highly abrasive solutions
Non-metallic rings and bushes
Ceramic plain bearings
Surface coatings
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