PDF Download5-12 centrifugal fan, enhanced type of 5-11 medium pressure centrifugal fan, output more air flow than 5-11, and can be used in conveying various common gas and hard materials in the industry field, whose application objects are nearly the same as 5-11. There are mainly circulating fluidized bed(CFB)system, Fume exhaust, materials drying, industrial dust collector /filter system, flue gas desulfurization, flue gas denitration, industrial boiler blowing air, cement production line, industrial waste heat recovery device, mineral sintering (sintering), coke production (coke oven), etc, especially suitable for high temperature, wear, corrosion and other poor working conditions.
2. Can adjust fan speed by matching different diameter of belt pulley, making the fan running in the peak efficiency, reducing energy waste.
3. We provide motor Slide rail for tensioning the belt easily, reducing the energy loss caused by belt slack.
4. Bearing housing reserves installation place for temperature and vibration sensors, can install easily of fan running monitoring device.
5. Use liquid lubricating oil, no need to open bearing housing when changing or filling lubricating oil. Easy to observe the lubricating oil’s quality and stock through inspection window on the bearing housing body.
6. Bearing housing adopt labyrinth mechanical seal, unique design of spill prevention of inner, venthole is designed on top, commissure is coated with sealing grease, completely eliminate bearing housing oil leak.
7. Annealing treatment of impeller completely eliminate structure of internal stress when welding, ensuring impeller appearance won’t occur deformation and flaw.
8. Impeller passed high standard dynamic balancing, ensuring stable running of fan.
9. Running test and vibration value test for fans are done after finishing manufacturing, ensuring reliable running
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Application |
Temperature |
Normal temperature air |
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Hot air |
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Air composition |
Clean air |
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Dusty air |
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Corrosive gas |
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Combustible gas |
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Powder materials |
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Light particle materials |
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Performance |
Impeller diameter |
400-3300 |
mm |
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Speed of main shaft |
≤4000 |
rpm |
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Pressure range |
684-8687 |
Pa |
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Flow range |
590.4-700735 |
m3/h |
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Structure |
Blade |
Backward |
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Impeller support |
SWSI (Single Width, Single Inlet), Impeller overhung. |
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Drivetrain |
V-belt drivetrain |
Can assign |
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Lubrication |
Oil bath lubrication |
Can assign |
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Bearing cooling |
Air cooling or Circulating Water cooling |
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System |
Motor |
SIEMENS, ABB, SIMO, LA… |
Can assign |
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Impeller |
Carbon steel |
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Impeller cone (Air Inlet) |
Carbon steel |
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Case |
Carbon steel |
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Air damper |
Carbon steel |
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Main shaft |
High-strength carbon structural steel |
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Bearing |
FAG, SKF, ZWZ, C&U… |
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Bearing housing |
Cast iron |
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Drivetrain |
Coupling |
Can assign |
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Foundation bolt |
Carbon steel |
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Optional |
System base frame, Protective screening, |
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