Zhengzhou Hengyang Industry Co., Ltd provides comprehensive field
services, and extensive on-site analysis to assist plants with
achieving their goals. We specialize in design produce and install
whole rotary kiln projects, offering technical operational support
in areas, which include kilns, burners, conveyor, coolers and other
related areas. We offer training programs, and innovative solutions
to assist your plant in reaching its full potential.
General Service & working scope:
- Rotary kiln tire and supporter roller resurfacing (grinding)
- Rotary kiln inspection measurments
- Hot kiln alignment
- Rotary kiln maintenance
- Rotary kiln design-production and installation
- Trunnions, Rollers, and Kiln Tyres
Rotary Kiln Application
Rotary kiln is a rotating cylindrical vessel which is used for
drying, calcination and sintering in a continuous process with the
use of hot gases. The hot gases may be generated in an external
furnace or by a flame inside the kiln. Dajia rotary kiln and sponge
iron rotary kiln has been developed for performing drying,
calcination and sintering work in a continuous process. Widely used
for cement, pet coke calcination, dolomite, bauxite, sponge iron
and other materials, it uses hot gases for the operation.
Integrated with variable speed drive, process automation and
instrumentation, this kiln ensures optimum operational control. In
addition to technology, its design features better inlet and outlet
sealing to ensure minimum false air entry.
Calcination Materials Cement Aluminate Cement Limestone & Lime sludge Pet coke Calcination Minerals i.e. Bauxite and Iron Ore Sponge Iron Dolomite Kaolin Mica LECA Bauxite Oil Proppant Other materials | Specifications Diameter: 1000mm to 4500mm Length: 12000mm to 130 000mm Methods of heating: Direct or indirect Capacity: 200kg/h to 210t/h Fuel: coal, natural gas, heavy oil, etc Temp range: 900- 1400°C Material: Carbon steel, Stainless steel, etc Thickness: 12mm to 100mm
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Note: Testing kiln is for OEM Project, pls confirm with us if
interested.
Structure Feature
Kiln shell degree of natural deflection and rotation angle of kiln
supports are carefully designed, which extends the service life of
refractory lining
Kiln support rollers are equipped with floating roller bearings
with large diameter and small L/D for higher reliability
Rotary kiln seals to the kiln inlet, which serve as an insulation
layer and increase service life.
Support roller
In order to ensure uniform use of the contact surfaces between
tyres and supporting rollers, as well as the girth gear and pinion,
the axial motion of the rotary kiln is controlled. The support
roller mechanism counteracts the forces which are generated by the
slope of the kiln. It operates automatically and is controlled by
non-contact.
Kiln Tyre
The purpose of tyres (often called riding rings) and rollers is to
support the kiln and allow it to rotate with minimal friction.
Rotary kilns are among the largest items of permanently moving
industrial machinery, the largest examples weighing in their
fully-loaded form several thousand tonnes. Despite the challenges
of their size and their high temperature, the best examples of
rotary kiln rotate on their rollers almost frictionlessly, the
power supplied by the drive being almost entirely in order to
oppose the eccentric load of the contents of the kiln. On cutting
the power to a kiln, the kiln will “roll back” and unless a brake
is applied, will continue to swing like a pendulum for ten or
fifteen minutes before coming to a standstill. This finely-tuned
mechanical condition requires sophisticated design of the kiln’s
supports.
Advantages of Roller Kiln
The unique structure design of splined tyre and shell shim plate
guarantees the 100% synchronous operation of shell and tyre; it can
also transform the radial force along shell to the tangential. In
this way, the deformation of shell could be effectively restricted
and the service life of refractory brick is prolonged.
Self-alignment kiln support guarantees the 100% contact of support
roller and tyre and high transmission efficiency, so as to prolong
the service life of cast and forge parts.
Kiln drive via support rollers is characterized by compact layout,
stable operation, reliable performance and low maintenance.
Kiln Ring Gear
Ring Gears are also known as starter ring and comprises medium
carbon steel ring with teeth which comes fitted on periphery of
flywheel of internal combustion engine generally in automotive
applications. With the teeth driven by smaller gear (pinion) of
starter motor, its primary use is in transferring torque from
starter motor pinion to flywheel/flexplate for engine rotation.
Kiln Inlet Seal
Kiln inlet seal will be of friction type ring. Two nos. rings,
carrying wear shoe segments on face, with one ring being rotating
with Kiln, slide on face to face. The wear shoes are lubricated by
high temperature grease. The sliding ring have pneumatic cylinders,
distributed equally on the periphery, which always keep both the
shoe rings of primary seal in contact, even during and
upward-downward movement.
Kiln Discharge Seal
Discharge end seal is made up of radially placed overlapping
segmented graphite blocks. This allows movement of shell in radial
and axial direction while effectively sealing.
ent ProjectTurnkey Plants
Mineral Processing Plant
Light Weight Expanded Clay Aggregate Plant
Petro-coke Calcination Plant
Sponge Iron Plant
Lime Plants
Oil Proppant Calcination Plants
Bauxite Calcination Plants
Contract / Outsource Manufacturing
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