Rotary Kiln Multilayer Fish-scale Sealing
Multilayer fish-scale sealing pattern has characteristics of high-temperature-resistance, wear-resistance, tight sealing,
and so on. It solved the problems of poor temperature resistant performance, ash leakage, air leakage, and so on.
Multilayer fish-scale sealing pattern make a considerable improvement on air leakage and ash leakage of rotary kilns.
It is an improved products on the basis of years of reform of rotary kiln sealing. It proved that multilayer fish-scale
sealing make the working life of rotary kiln sealing becomes twice.
Multilayer fish-scale sealing pattern is a kind of flexible sealing pattern. The innermost layer is wear-resisting layer
(heat-resistant steel fish scales), which adopts specific wear-resisting and heat-resistant material and is thickened
on the contact place and the friction parts to increase its durability. The middle layer is heat insulation layer(carbon
and aluminum fiber composite panel), which adopts new type of high-temperature-resistant, flex resistant, heat
insulating, flexible composite material. The outmost layer(anticorrosive fish scales), which adopts anticorrosive and
heat-resistant material to protect the heat insulation layer and the wear-resisting layer.There are three layers of
scales. In each layer, the scales are arranged in one piece overlaps another, which make the sealing effect better.
Kiln head sealing and kiln tail sealing of rotary kilns for chemical industry, metallurgy, building material, and so on.
The inlet and outlet sealing of dry drum and single tube cooler.
The working life in kiln head is 2-3 years, and the working life in kiln tail is 3-4 years.
|Part Name||Material||Operating Temperature||Heat Conductivity||Density|
|Heat-resistant Steel Fish Scales||0Cr18Ni9（304）||650℃||17.2 W/(m · K)||7.93|
|0Cr19Ni10Ti（321)||750℃||14.7~15.2 W/(m · K)||7.93|
|0Cr23Ni13（309S）||900℃||8.0-13.8 W/(m · K)||7.93|
|Anticorrosive Fish Scales||· Q235 galvanized sheet||350℃||10 W/(m · K)||7.85|
|· 201 stainless steel||400℃||16.2 W/(m · K)||7.93|
|Carbon and Aluminum Fiber Composite Panel||Carbon and Aluminum Fiber||800℃||0.064 W/(m · K)|
|Flange||Q235||350℃||10 W/(m · K)||7.85|