SPECIALIST EQUIPMENT
emitted when heating up a traditional tap- hole clay are eliminated) but also ensures that the THC is not more expensive for the end user. Any variation for diff erent metals can be accommodated using the same new binding system and only modifying the refractory aggregate to suit any furnace environment. To the astonishment of Refraline’s clients, industrial trials have now proven that its non-toxic THC eliminates all toxins emitted by a traditional THC and could fulfi l all requirements to close a tap- hole safely under normal furnace operating conditions, without any extra cost. With this competitive advantage
Refraline has since invested in a new production line at its factory in Meadowdale, South Africa to be able to supply the smelting industry with this sought after THC.
THE IMPLEMENTATION Any changes in a critical process requires careful consideration and management of change (MOC), to evaluate and benefi ts and risks associated with the change. Refraline is assisting its clients with this
Furnace: closing of taphole with THC
by means of fi nite element analysis (FEM) of the client-specifi c taphole. In this FEA modelling the temperature profi le in the taphole is siumlated for two scenarios: closed taphole and open taphole during tapping. T e modelling is done time elapsing from the changed condition until steady state. T e FEA modelling shows what temperatures can be expected at diff erent time intervals during the opening and closing of the taphole. T is information is needed to carefully fi ne-
tune the bonding system of the THC to suit the specifi c furnace environment so a customer specifi c THC can be developed to account for all customer requirements. Refraline believes it has set a new
industry standard with this engineered solution of a well-known problem.
Manfred Rösch is MD of Refraline.
www.refraline.com
EQUIPMENT
SERVICE
CONSTRUCTION CHEMICALS
ROCK REINFORCEMENT
UNDERGROUND EXPERTISE PROJECT SUCCESS BEGINS AT THE BEGINNING
We are a global brand with access to the brightest minds in our industry. We deploy these experts to the local level where we serve as true collaborative partners for our clients. This partnership allows us to fill knowledge gaps, maximize efficiencies, and assume full responsibility to offer our clients the greatest return possible.
EQUIPMENT SERVICE CONSTRUCTION CHEMICALS NOR_180319_International Mining Engineer - May
2018_w185xh121.indd 1 ROCK REINFORCEMENT
NORMET.COM 19.3.2018 18:24:06
www.engineerlive.com 41
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56
