A dewatering pump is a pump that is installed by specialists underground of the site in order to reduce the water level and then maintain it at this level. Dewatering pumps are also known as centrifugal or submersible pumps that can be used at construction sites, in tunnels and mines and also in commercial buildings where you need to remove unwanted water. It offers mine sites great cost savings including fewer explosives required to clear out waste materials, dry or and dry environments so that better working conditions can be created which leads to improved structural integrity of the work space.
In this post, learn what things you need to consider when selecting a dewatering pump for a particular scenario. Even a specific change on the site may need several pumps like vertical pumps as situations may change over the course of a single construction site project.
Pump Size
A right pump size determines the equipment’s maximum processible load. Industrial pump models usually start from 1-2KW and can up to 10kW. If you prefer to run the pump continuously at its maximum capacity it might cause mechanical problems and disturb pumping operations.
Therefore, if pumping is expected to continue for a longer time on the construction site in your area, multiple pumps distributed throughout the construction site should be considered. This method is known as parallel pumping so that the equipment remains in operation for an extended period.
Flow Rate
Thinking about the flow rate needed to perfectly remove the unwanted water in order to keep the mine dry? Well, during this time, you should also consider the style of dewatering pump that can be suited for the application. If the pump is self-priming then what will be the length of the suction line? Make sure it is important the size of your suction line is equal to bigger than the size of the inlet port, so that it will be helpful in reducing the possibility of suction cavitation.
Power Cost
If capacity of each mine submersible pump is 910 gpm and pressure is combined 1,020 psi then at 54% of efficiency, power usage at approx 8000 hours annually is about 6.1 millions kilo watt. If you choose $0.10 per kWh for power savings using the PD pumps can be close to a dollar two lakh forty thousand per year. Thus, cost savings in this example due to power usage and gland seal water combined can increase up to $50,000 per year.
However, the overall capital power costs of the Positive Displacement (PD) pump at construction sites far exceed the centrifugal series of mine dewatering pumps, but the payback period can become attractive.
Pump Roll-Cages
Depending on the site where you will be installing a dewatering pump, you should consider a protective roll-cage for the mine pump. A roll-cage is helpful in protecting the pump when it falls or something drops on it. Another advantage of roll-cages is that power equipment like cranes can lift over the pump on a site using the cage thus, it is effecting theft-proofing methods when storing equipment on-site overnight using dewatering pumps.
Darling Pumps is one of the trusted manufacturers of water pumps in India. Reach us at 36-F, Sector B, Sanwer Road, Indore or give us a call at +91 99819 92833
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