立磨介绍

Date Author Title
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VTM 与塔磨的比较
• 塔磨用于非金属 • VTM金属和脱硫等 • 塔磨175%启动扭力，80%铭牌功率运行 • VTM260%启动扭力，100%铭牌功率运行 • 塔磨连轴器油脂润滑，压配合安装，需拆卸。 • VTM弹性连轴轴器，不需润滑，更换不用移动 减速机和连轴器。
立磨的特点
• • • • • • • 能耗节省30-40% 安装时间少50-70% 安装简单 基础简单 噪音低 低负荷能力 控制简单
Fewer Moving Parts
Ball Mill Motor Reducer Couplings Hydrostatic Bearing Bearing Lube Unit Gear and Pinion Gear Lube Trommel SMD Vertimill
January 10, 2015
INTERNAL
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Regrind Mill Effect of Media Size
70 60 50 40 30 20 10 0 0 5 10 15 20 25 30 35 40 45
18mm steel media 10mmsteel media 5mm steel media
Reported VTM Energy Savings
• Red Dog : 40 %
– First in large scale Vertimill Metallic Operation in 1987
• Mexican Copper Mine : 34.2%
– VTM in Secondary grinding in place of a ball mill.
Crushing & Screening
• Crushers
• Screens • Feeders • Conveyors • Mobile equipment
Minerals Processing
• Grinding mills
• Separation equipment • Pumps • Pyro processing • Bulk materials handling
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美卓磨机制造经验
-逾百年生产磨机的经验
Metso Minerals
Svedala Grinding
Allis Mineral Systems
Boliden Allis
MPSI
KVS
Allis Chalmers
Dominion
Koppers
Marcy
Sala
Hardinge
Date
Title/Author
• Cannington VTM-1500-WB, Zinc AG mill product grinding
– Flue Gas Desulphurization
• LG+E Power Station VTM-1000-WB, Limestone grinding
• Lime Slaking
Regrind Flue Gas Desulfurization – Flue Gas Desulphurization • East Bend Power Station VTM-20-LS Lime Slaking – Gold / Base Metal Mines Secondary Grind • Newmont Peru VTM-200-LS, Yanacocha leach pH control Other
• DEM动力效应模型和美卓大量实践证明转 速提高21.7%，作用于衬板的剪切力增加 44.8%。塔磨转速高于VTM，加之材料的差 别和筒体腔型设计，使VTM衬板具有更长的 使用寿命。
• VTM 已安装307台
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INTERNAL
23
Charge Motion – Vertimill®
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简单基础
Less Floor Space Required
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INTERNAL
Vertimill Circuit Options
• Closed or Open Circuit • Pre-classified / Scalped or Fresh feed directly into the mill • Top Fed or Bottom Fed • Separating Tank and Recycle Pump
Date Author Title INTERNAL 20
VTM 与塔磨的比较
• 塔磨门常被球屑矿渣卡死。VTM斜溜设计，免 除隐患并有液压支撑开启。
• 塔磨衬板格栅，大量栅条需要更换 • VTM无紧固件筒体磁性衬板，不需换。 • 塔磨中空绞龙轴，需定期更换。 • VTM实心龙轴，不需更换。 • 塔磨用缆绳吊运绞龙，VTM使用液压活动架。
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INTERNAL
Vertimill Circuit Options
• Closed or Open Circuit • Pre-classified / Scalped or Fresh feed directly into the mill
Date Author Title INTERNAL 21
VTM 与塔磨的比较
• 塔磨用表面应处理绞龙衬板 • VTM绞龙衬板高于650Brinnell硬度的高铬-钼 合金。直径长，转速低，使用寿命是塔磨 的3倍。VTM作业率大于98%。
Date Author Title
INTERNAL
22
VTM 与塔磨的比较
Date Author Title INTERNAL 19
VTM 与塔磨的比较
• 塔磨轴承用止推环,非金属矿应用寿命短. 现场安装 不便. • VTM采用Bikon锁紧装置，不需热涨配合。宽体轴承 座上下双唇密封，自油脂润滑，带提升孔。B-10使 用寿命远大于110,000小时.
• 稳定支撑轴承: 塔磨稳定衬套易受沾污，螺栓易腐 蚀。不好更换，没有油脂润滑。VTM间隙式，分体 铜轴承，双唇油脂润滑，焊接螺栓 • 塔磨整个筒体，VTM大型机分体。
80 % Passing, Microns
kWh/Tonne
10
January 10, 2015
INTERNAL
Vertimill Advantages - Power
立磨特点
• 为甚麽能耗省30-40% ?
• 研磨
• 内部分级, Reduce Over Grinding, Beneficial for Down Stream Processing • Small Media Size
– Largest VTM has been installed in 5 days
• Smaller Foundations => Cheaper Foundations • Roughly 50% of Ball mill installation costs
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Vertimill® Applications
• Grinding
– Concentrate Regrind
• Tati Nickel VTM-500-WB, Nickel flotation concentrate regrind
– Secondary Ball Mill
• SW USA Copper Mine: 29 – 39%
– Secondary Grinding
• • • • •
Chino Mines: 35 % Las Encinas: 35% Minera Escondida: 35% La Candelaria: 44% Etc.
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INTERNAL
VTM-1500与4.26x6.86球磨 机的经济技术比较
• • • • 设备投资 安装费用 初期投资 产品顿功耗 1.44 0.24 1.15 0.62
经济技术比较
• • • • • • 钢球损耗 衬板消耗 维护人工 10年净现值 总费用 费用差/投资差 0.40 1.14 0.17 0.49 0.59 19.75
✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
✔ ✔ ✔
✔ ✔ ✔
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January 10, 2015
INTERNAL
Lower Installation Cost
• Typical large ball mill takes 12 weeks to install • Typical VTM takes 2 weeks to install
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Media Size
Ball Size (mm) 50 40 30 20 15 10 5 3 2 Surface Area M2/mton 33.3 41.7 55.6 83.3 111.1 166.7 333.3 555.6 833.3 Number of Balls /mton 4244 8289 19649 66315 157190 530516 4144132 19648758 66314560 Number of Balls Normalized 1 2 5 16 37 125 1000 4630 15625
•
– Vertimill® typically 38-12 mm – SMD typically < 5 mm
• Charge Motion
– Vertimill® similar to “kidney” of ball mill charge motion – SMD charge is fluidized
Mining and Minerals Processing
Drilling
• Track
Service
• Wears and spares
• Rotary • Jumbo
• Preventive maintenance • Maintenance and repairs • Total maintenance contract
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全球范围磨机销售市场份额
1990 ~ 2003
Metso FFE Krupp Outokumpu Others
安装就绪的Cadia 12.2 x 6.7 m 半自磨机
The Vertimill®
• >300 Units Sold • > 160,000 kW Sold • Unit Sizes from 15 to 3000 HP • Feed Size from 6 mm • Product Sizes to sub 20 microns • Low Intensity = Low Wear • High Density media – steel or ceramic • Media Sizes 38 – 5 mm
– Alumina Operations
• Worsley Alumina VTM-300-LS
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January 10, 2015
INTERNAL
Typical Grinding Ranges
• • •
Values are typical and depend on material properties Vertimills are more efficient than Ball mills across their entire grindinill and SMDs.
Wear Protection & Conveying • Mill linings • Screening media • Wear protection • Conveyor belts/accessories • Dust protection • Slurry hose
Date
Title/Author
January 10, 2015
INTERNAL
7
Why is Stirred Milling more efficient?
• Specifically designed to maximize the attrition grinding mechanism (shear forces) Media Size