M INING

Rugged p u m p design at the cutt ing edge

Over the years, Milton Roy has accumula ted various applica- tion exper ience in underground mining operations throughout the Americas. Examples include the in jec t ion of p ropr ie ta ry chemicals lor water t reatment in dust suppressing applications at the cutt ing location.

a~ typical configuration calls ti)r the precise injection of a low pressure chemical stream (800 - ! 000 psig) to create a solution to effectively conrol dust, as well as acting as a coolant in the cutting operation. These chemicals are typically purchased in fixed quantities ranging from 55 - 220 gallons and del ivered to the pro- tess by way of a tank mounted on the cutting equipment.

This equ ipment operates in an explosive e n v i r o n m e n t ,

requi r ing explos ion proof equ ipmne t . Electric motors must be rated accordingly. More often than not however, the operator requires that the driver on the metering p u m p be a hydraulic motor. After relatively minor modifications to the stan- dard pump design, this opt ion is available on most of Milton Roy's product lines.This is addi- t ionally advantageous to the operator because the cut t ing machine itseff is hydraulically driven. The power source is therefore readily available, and the operator doesn ' t need to br ing in ano the r source of power just for the meter ing pump.

It should be noted that most me te r ing p u m p instal lat ions require that the p u m p be

mounted on a level surface. In the case of this type of installa- tion, this is rarely possible, and as a result the pumps are often found to be work ing on an angle.This requires the use of a very rugged mete r ing p u m p drive design.

After only moments of opera- tion of the cutting machine, the pump and its associated compo- nents are covered in coal dust. These conditions are as extreme as an},, and demand the use of the most robust and dependable fluid metering equipment available.

Contact: Milton Roy Company, Flow Control Division, 201 Ivyland Road, PO Box 5011, Ivyland, PA 18974 18974-0577, USA. Tel: +44 215 441 0800; Fax: +1 215 441 8620; www.miltonroy.com

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IIIE BI.0VIER$ 11 E GEIIERP.IIOII

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FindeR P O M P E

o e L L .

Finder Pompe Via Bergamo, 65- 23807 MERATE (LC)- ITALY Tel. (+39) (39) 9907121- Fax (+39) (39) 599267

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WORLD PUMPS MARCH 1998