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Case Study

Turnkey Solution For Mine Dewatering - Complete Bore Pump Package

INFRASTRUCTURE
13 June 2021
13 Jun 2021
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Complete mine dewatering bore pump setup in a reddish-brown mining environment, featuring a yellow Olympian GEP110-4 diesel generator and an orange pump control panel

Overview

Mine Dewatering submersible bore pump Australia

Dewatering, as the name suggests, is removing water from construction, utility and especially mining sites. Mine dewatering is an essential part of resource extraction, as it lowers the water table around the mine or quarry.

Mine dewatering is usually undertaken for several reasons but following are the main two reasons.

Problem

Ensure Stability Of Mine Walls During And After Excavation

In open-pit mines, a water table that is too high can destabilize mine walls, haulage roads, and slopes. Water pressure reduces the stability of mine walls and can lead to sliding and collapse of materials in the slope. In underground mines, the inflow of water must be controlled to prevent flooding, however, a balance must be maintained so that groundwater levels are not needlessly depleted

Solution

Optimise Mine Production And Reduce Operational Costs

Effective dewatering operations create dry conditions so that low-strength aquifer sequence materials (sands, gravel, and clays) can be safely excavated, reducing drilling and blasting costs. Additionally, wear and corrosion on equipment is minimized, and the possibility of pump burn out is reduced by accurately monitoring drawdown.

One of the best dewatering methods is deep wells. A deep well typically consists of a borehole fitted with a slotted liner and an electric submersible pump. Water will then be pumped from the deep well till there is little or no water remaining.

Recently, All Pumps was approached to manufacture a turnkey solution for a mining site’s dewatering project. The aim of this project is to allow the mine operations to mine lower into the ground.

 

Project Highlights

We supplied a complete dewatering package with 4 x 45kw bore pumps, head works, and generators. The borehole pumps are running off VSD headworks units and a control panel was also provided to allow them to vary pump pressure as the aquifer drops. The bore pumps are set at 150m down and doing 15 – 20 litres per second.

The major borehole pump manufacturer is Javelin, which is supplied and serviced by All Pumps.

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