First Turnkey main fan station commissioned at Anglocoals’s Zondagsfontein colliery projectRead more...
Turnkey trifurcated main fan station commissioned at Lonmin’s safety shaftRead more...
Energy saving guide-vanes for fans at Anglo Platinum’s Rustenburg and Amandelbult operations Read more...
BBE completes first two surface main fan station turnkey projects Read more...
Barrick Africa
Bulyanhulu Mine (Tanzania)
2009-2010 Read more...
AngloGold Ashanti
Cuiabá Gold Mine (Brazil)
2009-2010 Read more...
Anglo Platinum
Townlands Mine
2008-2010 Read more...
Rio Tinto
Palabora Mine
2008-2010 Read more...
AngloGold Ashanti
Tau Lekoa Mine
2008-2009 Read more...
AngloGold Ashanti
Moab Khotsong Mine
2008-2009 Read more...
Barrick Africa
Bulyanhulu Mine (Tanzania)
2007 Read more...
AngloGold Ashanti
Mponeng Mine
2006-2007 Read more...
Gold Fields
South Deep Mine,
94th Level
2007-2010 Read more...
Impala Platinum
No. 20 Shaft
2007-2008 Read more...
Impala Platinum
No. 16 Shaft
2007-2008 Read more...
AngloGold Ashanti
Obuasi Mine - GCS Shaft (Ghana)
2005-2007 Read more...
Rio Tinto
Argyle Diamond Mine (Australia)
2006-2007 Read more...
Lonmin Platinum
Karee No.4 Shaft
2005-2006 Read more...
AngloGold Ashanti
Obuasi Mine - KMS Shaft (Ghana)
2005-2007 Read more...
Zinifex
Rosebery Mine (Australia)
2006 Read more...
Impala Platinum
No.14B Shaft
2005 Read more...
Impala Platinum
No.11C Shaft
2005 Read more...
VALE / CVRD
Taquari Vassouras Mine (Brazil)
2004-2005 Read more...
Anglo Platinum
Union Section Spud Shaft
2004-2005 Read more...
Falconbridge
Kidd Creek Mine (Canada)
2004-2005 Read more...
VALE / CVRD
Taquari Vassouras Mine (Brazil)
2002-2003 Read more...
VALE / CVRD
Taquari Vassouras Mine (Brazil)
2002-2003 Read more... 
Impala Platinum
No.12N Shaft
2003 Read more...
Harmony
Evander No.8 Shaft
2003 Read more...
Gold Fields
Driefontein No.5SV Shaft
42nd Level
2003 Read more...
Northam Platinum
2003 Read more...
Anglo Platinum
Amandelbult No.2 Shaft
2003-2004 Read more...
Anglo Platinum
Amandelbult No.2 Shaft
2003-2004 Read more...
Impala Platinum
No.1B Shaft
2002-2003 Read more...
Impala Platinum
No.14 Shaft
2000-2001 Read more...
VALE / CVRD
Taquari Vassouras Mine (Brazil)
2000-2001 Read more...
Unique and innovative water thermal storage saves power for Implats
BBE has conceptualised and designed a unique and innovative water thermal storage scheme for Impala Platinum in the North West province which promises to achieve significant power savings. The challenge has been to introduce water thermal storage into the cooling systems on seven shafts using existing water storage dams for both hot and cold water storage at different times during the day.
Five of the shafts have dams where the hot and cold water is stored, relying on thermal stratification alone. In these dams, the height to diameter ratio is such that the hot water remains above the cold with minimal mixing. The shape of the other two shaft dams (shallow, large diameter) has required another means of keeping the hot and cold water separate.
Each dam has been fitted with five plasticised canvas bladders, with a combined capacity of 3 megalitres per dam, the largest measuring 30 m X 7 m (wide) X 6 m (high) when full. The bladders are secured to the base of the dam and a piping system feeds and extracts the cold water in and out of the bladder while the hot water is fed and extracted from the surrounding space.
The capital costs for the simultaneous storage of hot and cold water in the same reservoir has been achieved at a fraction of the cost of a new dam.
Electrical operating costs are reduced by producing more cold water than is required during off-peak tariff periods, then switching the refrigeration machines off during the peak tariff periods of the day and using the stored cold water. The saving is achieved through the tariff differential.