2-205.07e

Compact and efficient!Tube mill withslide shoes andINTEGRAL DRIVE

www.khdhumboldt.com

by adjustabletie roads andsupportedby a baseframe. Thisconstruction

enables easyadjustment du-

ring erection andallows for a simple

and economic founda-tion design.

These shoes fit!The slide shoes are coatedwith a special white metalwith good temperature

Compact and efficient!Tube mill with slide shoes and INTEGRAL DRIVEFitting shoes.KHD Humboldt Wedag mills are not only becoming increasingly space-saving and compact, they are alsoparticularly high on performance and low on maintenance. This is primarily due to the support bearing designand the mill drive used. The mill is shell-supported, mounted on slide shoe bearings at both ends and madecompletely as a welded design. The mill with the compact drive version features an INTEGRAL DRIVE, whoseplanetary gear is mounted to the mill flange. KHD Humboldt Wedag mills are the result of the most advancedcalculation and simulation methods, backed by years of experience. Worldwide we have designed and builtmore than 1,000 tube mills.

shoes are suppor-ted on onerocker arm.These arearranged ina swivel bedfor perfectload sharing.The result isa statically

sound sup-port. This de-sign can absorbsettling movements ofthe foundation and copeswell with temporary mill shelldeformation resulting from

thermal stress. The oppositebearing blocks are connected

Large tube mill with four-shoebearings: statically sound

and self aligning.

1971 Trunnion bearings

1989 Slide shoe bearings

1994 INTEGRAL DRIVE

Picture of two of the four-shoe support bearing system

Easy assembly and maintenance.The bearings of our mills work onthe principles of hydrodynamicsand are designed to be self-ali-gning. Depending on size, two ormore slide shoes are provided perbearing. In the case of four-shoebearings, two

advanced calcula-tion methods. Thefilm of lubricantremains fullyfunctional evenat the lowestrelative bearing

play (c=0). Thisis particularly

advantageouswith large mills.

A hydrostatic high-pressure pumpis used to reduce the initial break-away torque when the mill is

stability andemergencyrunningcharacte-ristics. Awedge oflubricantis automa-tically for-med byslanting the be-aring surface relativeto the sliding surface. The deforma-tion behavior of the slide shoes andslide ring is matched using highly

Fitting solutions from us ...Tube mills: the driveOur driving force.The standard KHD Humboldt Wedag mill is shell-supported on slide shoes and has a central drive. Torque trans-mission is effected via the conical discharge end. This cone is welded to the mill shell and has openings for the

discharge of material and exhaust gases. The drive flange is connected to the end ofthe cone. In this way, the drive force is distributed directly and evenly to the mill

shell. All standard types of mill drives can be connected, such as:

• Central Drive,• INTEGRAL DRIVE,• Girth Gear and Pinion Drive.

High on performance, low on space requirements: INTEGRAL DRIVE.Our mills for minimum space requirements are mounted on slide shoebearings and have an INTEGRAL DRIVE. The core of this drive is a two-

stage planetary gear reducer, which is directly mounted on the end cone.Only one short slide seal at the motor end and a closed oil lubrication

restarted after a stoppage andfor bearing lubrication when theinching drive is used.

Mill with slide shoe bearings andinspection window

KHD Humboldt WedagGmbHColonia -Allee 351067 Cologne/GermanyPhone +49 2216504 1101

ZAB Zementanlagenbau GmbH &Industrietechnik & Service GmbHBrauereistraße 1306847 Dessau/GermanyPhone +49 340 5029 0

Humboldt Wedag India Private Ltd.Espire CampusA -41, Mohan Co -op Estate,Mathura RoadNew Delhi -110044/ IndiaPhone +91114210 1100

KHD Humboldt (Shanghai)International Industries Ltd.Office Beijing Guo Ji Da Sha 25 -A19, Jiangou Menwai DajieBeijing/PR ChinaPhone +861065004101

Humboldt Wedag, Inc.400 Technology ParkwayNorcross GA 30092/USAPhone +1770 810 7315

OOO KHD Humboldt EngineeringMjasnizkaja ul., 24/7Office 108Moscow 10100/RussiaPhone +7 495 9233480

KHD Humboldt Wedag Rep.Iran Branch Office3rd Floor, No. 244Navak Building, Africa Avenue,Tehran 15186/ I.R. IranPhone +98 218888 9880

Humboldt Wedag SA (Pty) Ltd.36 Wankel Street, Jet ParkBoksburg, 1459/South AfricaPhone +27 11397 4660

The main features at a glance:• Extremely compact arrangement• No foundation for the gear reducer• No complicated drive adjustments• The motor can be installed

separately from the gears• Does not need to be run in• Low staffing level for operation

monitoring

• Environment-friendlydue to light sealing,No grease required

• High availability• High efficiency level as

no coupling required onthe mill side

The type used depends on the application:

• Type A and B: for grinding and drying• Type C and D: for clinker grinding

All mill lengths can be used for two-stage closed circuit grinding. In addition to the standard mills listed, we alsomanufacture smaller mills for grinding coal. These come with combined trunnion and slide shoe bearings. Forextremely hard and abrasive materials and special applications, we supply center-discharge mills.

Mill tubediameter (m)

3.0

3.4

3.8

4.2

4.6

5.0

5.4

5.8

Length A(m)

5.00

5.50

5.75

6.50

7.25

8.00

9.00

9.50

Length B(m)

7.25

8.25

9.25

10.00

11.00

12.00

13.00

14.00

Length C(m)

9.00

10.50

11.50

13.00

14.00

15.00

16.50

17.50

Length D(m)

10.00

11.50

12.75

14.00

15.25

16.50

18.00

19.00

Motormax. (kW)

1,100

1,750

2,600

3,700

5,100

6,800

9,100

11,500

The choice is yours.Girth gear and pinion drives aresufficient for up to 4,500kW. OurINTEGRAL DRIVE is suitable for upto 6,500kW. For mills with a drivepower of between 5,000 and10,000kW, we recommend aclassic central drive with fixedplanetary gears.

Ready for use anywhere, any time.Our mills have a tube diameter ofup to 6.0 meters and four differenttube lengths for each diameter.

system extend the time between oil changes and reducethe risk of entering of dust particles. Installation is

fast and easy. No time consuming adjustments.Our INTEGRAL DRIVE is the most economic

drive due to its high availability and amechanical efficiency level of almost 99%.

Tube mill with compact girth gear drive. The girth gear is attached to the mill tube.