Presentation on Buzzi-Unicem Plant Tour
Presentation on Buzzi-Unicem Plant Tour
Presentation on Buzzi-Unicem Plant Tour
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<strong>Buzzi</strong> <strong>Unicem</strong> USA<br />
Mid-Atlantic Divisi<strong>on</strong><br />
Signal Mountain Cement <strong>Plant</strong><br />
Chattanooga, TN<br />
.0.
Welcome to <strong>Buzzi</strong> <strong>Unicem</strong><br />
USA’s Signal Mountain <strong>Plant</strong><br />
• Brief History<br />
• Equipment/Process<br />
• Safety<br />
• <strong>Tour</strong><br />
.1.
Signal Mountain Cement<br />
<strong>Plant</strong> – 1920’s<br />
.2.
.3.<br />
Craneway – Raw Material/Clinker Storage
Original <strong>Plant</strong> Capacity<br />
180,000 000 mtpy<br />
.4.
First Clinker October 1923<br />
Upgraded 1950’s<br />
.5.
Site Preparati<strong>on</strong>-1998<br />
.6.
Finish Mill - 1998<br />
.7.
.8.
.9.
.10.
QUARRY Quarry<br />
Producti<strong>on</strong> Capacity 875 TPH<br />
1.3 Milli<strong>on</strong> TPY<br />
Raw Materials Reserves<br />
Primary Crusher<br />
~75 Years<br />
Nordberg C 140B Jaw<br />
Sec<strong>on</strong>dary Crusher<br />
5.5 5 Sym<strong>on</strong>s C<strong>on</strong>e<br />
.11.
.12.
Barge Unloading<br />
Materials Unloaded:<br />
•Limest<strong>on</strong>e<br />
•Fuels (Coal & Petcoke)<br />
•Gypsum<br />
•Ir<strong>on</strong> Ore<br />
.13.
Raw Material<br />
Storage<br />
Limest<strong>on</strong>e<br />
Ir<strong>on</strong> Ore<br />
Alumina<br />
Slate<br />
Sand<br />
.14.
Quality C<strong>on</strong>trol<br />
Gammametrics Cross-Belt Analyzer<br />
• C<strong>on</strong>trols C3S, Silica Ratio, A/F in real time<br />
• Automatically adjusts additive feeders <strong>on</strong>ce/min<br />
• Provides c<strong>on</strong>sistent feed quality<br />
.15.
Raw Mill<br />
• Capacity: 210 TPH<br />
• Mill Drive 2250 Hp<br />
• Fan Drive 2000 Hp<br />
Raw Mill<br />
• Uses hot air from process<br />
• Dries and grinds raw materials<br />
• Dictates fineness, chemistry, and<br />
% moisture<br />
• Fineness c<strong>on</strong>trolled to 87.5%<br />
Passing –170 mesh screen<br />
.16.
.17.
Kiln Feed Silo<br />
Capacity 5000 t<strong>on</strong>s<br />
Withdrawal Blending System<br />
.18.
Pre-heater/Pre<br />
heater/Pre-calciner Tower<br />
.19.
Preheater<br />
• 315’ Tall<br />
• 5 Cycl<strong>on</strong>es<br />
• Calciner<br />
• 600 F at Top<br />
• 2000 F at Bottom<br />
• Prepares Feed for<br />
Clinkerizati<strong>on</strong><br />
• Burns 60% of Fuel<br />
• Fuel – Petcoke/Coal<br />
.20.
13’ Diameter X 147 ft l<strong>on</strong>g Rotary Kiln – 3100 tpd<br />
.21.
.22.
Cross-bar Clinker Cooler with Hydraulic Roller Breaker<br />
.23.
Coke/Coal Mill<br />
Ball Mill<br />
18 TPH Rated Capacity<br />
900 Hp Drive<br />
Fuel Characteristics:<br />
95% Passing 170 mesh<br />
.25.
15’ Diameter X 44’ L<strong>on</strong>g Ball Mill – 6000 Hp<br />
High Efficiency Separator for Automatic Fineness C<strong>on</strong>tro<br />
.26.
.27.
Signal Mountain Cement<br />
Cement Storage Silos<br />
Cement Storage<br />
Cement Storage Silos:<br />
12 Rail Silos<br />
27,000 T<strong>on</strong>s Storage<br />
5 Truck Silos<br />
15,000 T<strong>on</strong>s Storage<br />
42,000 T<strong>on</strong>s Total Storage<br />
.28.
Cement Barge Loadout<br />
Capacity: 500 tph<br />
Silo Capacity: 1000 t<strong>on</strong>s<br />
.29.
<strong>Plant</strong> <strong>Tour</strong> Informati<strong>on</strong><br />
•Safety<br />
f t<br />
•Transportati<strong>on</strong><br />
•Where to go<br />
.30.
Wear Your Hard Hat!!!!<br />
.31.
<strong>Tour</strong> Safety<br />
• Wear Your Hardhat<br />
• Safety Glasses Required<br />
• Ear Plugs-Designated Areas<br />
• Closed-Toe Shoes/Flats<br />
• L<strong>on</strong>g Pants<br />
.32.
.33.
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