186659167 Kiln Mechanics

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L\DATA\Dept150\Polysius Presentations

and Training\Polysius Training\Pyrop

rocessing\Kiln\kiln_mechanics.ppt

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Krupp Polysius Corp.

Rotary Kiln

Mechanical Training

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Content:

Kiln General

Kiln Inlet Including Seal

Kiln Outlet Including Seal

Kiln Shell

Splined Kiln Tire

Floating Kiln Tire

Supporting Roller Station

Kiln Drives

Kiln Hood

Maintenance, Lurication

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POLRO2-support rotary kiln

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Kiln General

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Rotary kiln assembly

! Rotar" #iln shell $ Guard %or rac# and pinion drive

& Kiln inlet 'ith inlet seal 'ith lurication device( Tires 'ith %astening ) Kiln drive

s"ste* + Kiln outlet 'ith outlet seal

Supporting roller stations !- Kiln hood

. Kiln longitudinal guide !! /lin#ering 0one cooling 1optional2

3 Rac# and pinion drive

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The POLRO 2 - support kiln

splined tires 1cold gap -452

sel%6aligning rollers direct drive via supporting rollers pneu*aticall" applied inlet and outlet seals air cooled #iln inlet tra"

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Process - technological dimensions

Kiln ith preheater

Kiln ith calciner

!" !2 !# !$ !%

L&' ratio

( - )tations

*umber o+ stations and L & ' ratio

2 - )tations

!" !2 !# !%

L&' ratio

( - )tations

'esign o+ rotary kilns

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( - support kiln ,ersa 2 - support kiln

(6support #iln &6support #iln

Staticall" unde%ined

possiilit" o%

6 e7tre*e overload

6 plastic de%or*ation

re8uire*ent %or

6 et7ra sa%et" *argin

6 regular ad9ust*ent

Staticall" de%ined

constant support loading

elastic de%or*ation onl"

no sensitivit" to *isalign*ent

long enough %or process:

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Kiln Inlet

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Lo-dust. kiln inlet

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/ir cooled segmented inlet through

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Kiln inlet seal

Seal principle

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Slot ad9ust*ent et'een support ring

and slide ring

/ardanical %astening

Kiln inlet

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;ir pressure s"ste*Kiln inlet

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Kiln Outlet

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Kiln outlet sealing

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Slide ring

Support ring

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=rinciple #iln outlet Kiln outlet 'ith dust chute

Kiln outlet

L\DATA\D 150\P l i P iP

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Outlet o% #iln Outlet cooling

Kiln outlet

L\DATA\D 150\P l i P iP

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Kiln outlet

;ir pressure s"ste*

L\DATA\D t150\P l i P t tiP

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Kiln Shell


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'escription o+ the kiln shell calculation basics

The shell is a rotating dru* *ade %ro* rolled steel plates4 These shell sections

have the sa*e inside dia*eter ut di%%erent plate thic#ness4 ;ll sections are

'elded together4

The shell thic#ness is a result o% so*e calculations, the so6called Kiln Static4

>asic %or the #iln static are so*e *echanical rules and so*e li*iting %actors%or the shell *aterial, the so6called Design /riteria4

The design criteria %or a #iln shell is the >ending Stress4

Di%%erent #iln areas have di%%erent Loads4


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0unctions o+ the kiln shell

/onve"s *aterial

Guides gas %ro* cooler to #iln

/reates a constant *oving *aterial ed

allo's heat e7change et'een gasand *aterial

Holds the ric# lining


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Splined Tires


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'escription and +unction o+ the kiln tire

The tire is a steel ring on the outside o% #iln shell4 It 'or#s as an

sti%%ener %or the #iln shell4 The #iln tires have to carr" the #iln 'eight4

Functions? Trans%er load %ro* shell to the rollers

Keeps the shell in a round shape

Ma" trans%er tor8ue %ro* roller to tire

Design criteria? Tire ending stress

Ovalit" in 5

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Distriution o% %orces First splined tire in !+.-

)plined tires


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=rinciple splined tire Splined %i7ing

)plined tires


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he Floating Shim

PlatesForm the

Connection Between

the ire eeth and the

X-Shaped Retaining

Blocks

)plined tires


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Kiln shell ovalit"

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)plined tire


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Floating Tires


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Distriution o% %orces =rinciple o% %loating tires

0loating 5loose6 tires


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Steps %or radial pla" reduction

0loating tires


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0loating tires


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)plined kiln tire 0loating kiln tire

Comparison o+ kiln shell o,alities


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Supporting Roller Station


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'escription and +unction o+ a kiln roller

; #iln roller is a steel 'heel 'hich is supported on each side4

@ach tire is supported " t'o rollers4

Functions? Trans%er load %ro* tires to ase plate

Supports tires and #eeps the* in position

/an trans%er tor8ue %ro* rollers to tire

;llo's rotation

Design criteria? Hert0 =ressure

>earing =ressure


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Roller station

! >ase %ra*e

& >earing housing

asse*l"

( Roller and sha%tasse*l"

. Guide loc#

!& Oil level indicator


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)el+ aligning roller station +or Polro kiln


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Kiln Drives


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7irth gear dri,e system

! >ridge support

& >ridge plate

(, =late olts

. Girth gear

3 Heat shield


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)el+-aligning pinion

=er*itted tilting? A !- **


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8lectro-hydraulic dri,e system

L\DATA\Dept150\Polysius PresentationsPage8l h d li d i

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8lectro-hydraulic dri,e system


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8lectro - mechanical dri,e


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Kiln Hood


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Kiln hood

! Lo'er part o% hood

& Bpper part o% hood( Suspension door

Trolle" arrange*ent

. >urner seal

3 Inspection port

$ ;ccess door

) Su plate

+ /ollar seg*ent

!- Seal to cooler

!! Opening %or *easuring

soc#et


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Maintenance


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/hec# points o% #iln inlet seal?

Slot et'een support ring and slide ring

Thic#ness o% the 'ear ring

Cisual chec# o% sealing sur%aces

/hec# %or *aterial lea#age

=re6tensioning o% sealing roe

9aintenance kiln inlet


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;ir pressure net?

;ir pressure %or pneu*atic6c"linder

/hec# o% 'ater separator

/hec# o% luricator o% pressuri0ed air

/hec# %or lea#ages

9aintenance kiln inlet

;ir pressure s"ste*

L\DATA\Dept150\Polysius PresentationsPage9 i t kil tl t

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/hec# o% outlet seal?

1si*ilar to inlet seal2, 'ith additional points?

Graphite lurication o% slide rings

Function o% pendling hatch

/learanceo% dust chute

Functioning operation o% e7pansion 9oints

9aintenance kiln outlet

L\DATA\Dept150\Polysius PresentationsPage9 i t li d ti

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/hec# o% splined tire %astening?

/hec# o% 'edge pre6tension

Cisual chec# o% tire area

/hec# o% 'elds

9aintenance splined tires

L\DATA\Dept150\Polysius PresentationsPage9aintenance +loating tires

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/hec# o% %loating tire %astening?

/ontrol o% relative *ove*ent

=la" *easure*ents during stop ti*es

/ontrol o% a7ial retainers

Lurication o% slide sur%aces

/hec# o% 'elds

9aintenance +loating tires

L\DATA\Dept150\Polysius PresentationsPage9aintenance +loating tires

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Da*ages at ase plates " de%%icient lurication

9aintenance +loating tires

L\DATA\Dept150\Polysius PresentationsPage9aintenance & lubrication points

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9aintenance & lubrication points

! Girth gear

& /o*pressor plant

( Oil ato*i0er


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Sel%6aligning pinion and stoc# in

. Splash lurication girth gear pinion

3 =inion earing

$ Rotar" #iln drive


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!. Kiln tire

!3 Inlet seal

!$ Oil ato*i0er %or inlet seal

!) Oil ato*i0er %or outlet seal

!+ /ooling air %an

&- Fan %or clin#ering 0onecooling s"ste*


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&! Supporting roller

earing station I

&& Supporting roller

earing station II

&( Supporting roller

earing staton III

& Supporting roller

earing station IC

&. Graphite lurication

e8uip*ent


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Krupp Polysius Corp

9aintenance &lubricationpoints

&3 Thrust roller

&$ Sa%et" thrust roller

&) Slide pin

&+ H"draulic #ilns

longitudinal guide

(- Graphite lurication

e8uip*ent

Date post:	08-Jan-2016
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186659167 Kiln Mechanics

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