flsmidth rotarykiln brochure email

7/30/2019 FLSmidth RotaryKiln Brochure Email

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Rotary Kilns



The FT Series Rotary Kilns

Kiln shells are designed to

resist harsh operating

stresses-

Shells are rolled to exacting tolerances

and are suciently strong to accept

reason able misalignment, overloads,

and thermal stresses. All shop joints

are automatically welded. All

necessary clamps and bolts are

provided or aligning beore eld

welding. Extreme care is exercised in

abrication and inspection. The shell is

built to exceptionally close tolerances

or roundness and straightness.

Special ull-oating riding

rings assure smooth,

continuous operation-

Riding rings are o ull-foating design

and are machined on all suraces. The

ID o the riding ring and the machined

OD o the riding ring pads are

designed to have sucient cold

clearance so that the kiln, when hot,

will expand into the riding ring or a

snug t. Riding rings are normally

steel castings o solid rectangular

cross sections, but may also be

orgings.

Roller supports with bronze-

bushed sleeve bearings-

The roller supports on today’s

Fuller-Traylor Rotary Kilns are the

two-roller type, made o either cast or

orged steel rollers shrunk onto shats

o medium-carbon orged steel. The

two water-cooled sleeve bearings or

each roller are bronze-bushed and

well-lubricated by oil elevators in the

housing. On most kilns, a plate holder

is attached to the bearing housing to

lubricate the roll surace with

graphite. Antiriction bearings are also

available on all sizes o support rollers.

Thrust mechanism to counteract end

thrust- At least one support

mechanism in each kiln is normally

equipped with a pair o thrust rollers

with bearings to prevent the kiln rom

moving uphill or downhill. The thrust

mechanism consists o a conical

section roller on a vertical axis on each

side o the ring ring. Standard

practice is to counteract end thrust by

a slight adjustment or skewing o the

support rollers. However, ull-acting

thrust rollers may be supplied to

absorb the ull downhill thrust o the

kiln. In this design, the thrust bearings

are equipped with anti-riction

bearings. On large kilns, FLSmidth

oers hydraulic thrust mechanisms

designed to distribute the thrust over

one or more supports.



3

Weatherproo gear guards-

Gear guards,abricated o steel plate,

enclose the main gear and pinion.

Guards may be tted with oil

reservoirs and idlers, or automatic

spray devices or positive lubrication

o the gear and pinion. Weatherproo

guards are supplied as standard

equipment.

Easy-access frehoods, fre

shields, eed end housings,

and eed plugs-

Standard housings or Fuller-Traylor

Rotary Kilns are made o heavy,

welded-steel plate. They are tted with

large access doors. A variety o eed

end housings and rehood

arrangements are available to meet the

requirements o individual installations.

Seals isolate kiln atmosphere

rom air infltration-

Various types o air seals have beendevised or both the eed and

discharge ends o FLSmidth Rotary

Kilns. These seals eectively isolate

the atmosphere inside the kiln rom

air inltration. The elimination or

reduction o air leakage into the

exhaust system reduces an power

requirements. Elimination o leakage

at the discharge end o the kiln allows

more preheated air to be drawn rom

the cooler to reduce uel

consumption.

Our patented carbon block

seal maintains close contact

with shell-

Our carbon block

seal consists o

multiple graphite

blocks riding on a

prepared surace

o the kiln. The

blocks are machined to the shell

radius, and ride reely between guide

rings which maintain radial alignment

with respect to the shell. Individual

springs ensure contact between

replacement o worn blocks without

interruption o operation o the kiln.

The seal is easy to maintain, is very

ecient, and is a avorite o the

industry.

FLSmidth rubbing contact seals-

FLSmidth

rubbing contact-

type seals consist

o two rubbing

seal rings o

dissimilar metal,

lubricated with

grease or

graphite.

Rubbing contact

is maintained by pneumatic cylinders

to hold the stationery ring against the

rotating ring.

Some o thematerials calcined,roasted, nodulizedor otherwiseprocessed in rotarykilns are:

• Alumina

• Iron Ores and blast Furnace dust• Bauxite

• Sludge as generated in:

• carbide plants

• caustic plants

• paper pulp mills

• sugar refneries

• water purifcation plants

• Calcium carbonate waste

• Catalysts

• Cement

• Clays

• Dolomite

• Diatomaceous earth

• Gold Ores

• Ilmenite

• Lightweight Aggregate

• Lead Minerals

• Limestone

• Lithium

• Magnesia

• Magnesite

• Manganese ores andcompounds

• Paint pigments

• Petroleum coke

• Phosphates

• Pyrites

• Reractory materials

• Zinc minerals



www.smidth.com

When unproven processes are required

or calcinations o unusual materials are

desired, FLSmidth can help with an

excellent Research and Development

Group and with well-equipped pilot

plant acilities, including a 12” x 15’

test kiln and a 27” x 30’ test kiln. Also

available are crushing and grindingmachines, mufe urnaces, a complete

wet and dry chemical lab, and other

acilities to support this activity.

For more inormation, call or email the

FLSmidth oce nearest you.

Copyright ©2010 FLSmidth A/S. ALL RIGHTS RESERVED. FLSmidth is a (registered) trademark of FLSmidth A/S. This brochure makes no offers, representations or

warranties (express or implied), and information and data contained in this brochure are for general reference only and may change at any time.

Pyroprocessing

Technology Center

FLSmidth Inc.

2040 Avenue C

Bethlehem, PA 18017-2188

USA

Tel: +1 610-264-6010

Fax: +1 610-264-6170

E-mail: [email protected]

Minerals Processing

Technology Center

FLSmidth Salt Lake City, Inc.

7158 S, FLSmidth Drive

Midvale, UT 84047-5559

USA

Tel: +1 801 871 7000

Fax: +1 801 871 7001

E-mail: [email protected]

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