Mainly to meet the dust emission requirements of the electric arc furnace exhaust gas purification equipment, improve the workshop environment, to ensure that the dust concentration in the electric furnace working area meets the “sanitary standards for industrial enterprises”, and can also be used in various occasions with the same functional requirements.
5-12 series centrifugal ventilation fan Structure
5-12 series centrifugal ventilation fan Application
Centrifugal fan is widely used in the cement industry, building materials industry, environmental protection industry, metallurgical industry, power industry projects such as large-scale dust collector, industrial boilers, ventilation systems, cooling.
5-12 series centrifugal ventilation fan Features
It is capable of outputting a higher outlet pressure while providing more gas flow with lower noise. Stable operation at higher media temperatures.
The fan speed can be flexibly set by matching different pulley diameters to make the fan run at the highest efficiency point and reduce energy waste.
Motor sliding guides are provided for easy tensioning of the belt to reduce energy loss due to belt slack.
The bearing housing is reserved for temperature and vibration sensor mounting positions, for convenient to install the fan operation monitoring device.
Use liquid lubricant, it is not necessary to open the bearing housing to replace and fill the oil. The bearing housing is provided with an observation window for easy observation of the quality and stock of the lubricating oil.
The bearing housing uses a labyrinth mechanical seal, a unique Leak proof oil design inside, a vent hole at the top, and a sealant on the joint, completely eliminating the possibility of oil leakage in the bearing housing.
The impeller is annealed to completely eliminate the internal stress generated during welding, ensuring that the impeller does not undergo creep and cracks.
The impeller is subjected to a high standard of dynamic balance correction to ensure stable operation of the fan.
After the production is completed, all products are tested for running and vibration values for reliable operation.
5-12 series centrifugal ventilation fan Specification
| Series no. | 5-12 series | Feature selection | |||||
| Normal | anti-corrosion | wear-resisting | High temperature | anti-explosion | Remarks | ||
| Performance | Impeller diameter | 400-3300mm | |||||
| Rotation speed | ≤4000rpm | ||||||
| Pressure range | 684-8687Pa | ||||||
| Flow range | 590.4-700735㎥/h | ||||||
| Structure | Blade type | Backward, Straight, Aerofoil type | |||||
| Impeller support | SWSI(Single Width, Single Inlet), DWDI(Double Width, Double Inlet), Overhung type | ||||||
| Lubrication method | Oil bath lubrication, grease lubrication, lubrication oil station | Can be specified | |||||
| Cooling method | Air cooling, Water cooling, Oil cooling | Can be specified | |||||
| Driven mode | Direct driven, Coupling driven, Belt driven | Can be specified | |||||
| Gas composition | Gas temperature | Normal | Customer request | Customer request | ≥250℃ | Customer request | |
| gas characteristic | Clean gas | Corrosive gas | Particulate dust | High temperature gas | Flammable gas, explosive gas | ||
| System configuration | Motor brand | Chinese famous brand, ABB, Siemens, WEG etc | Can be specified | ||||
| Impeller | High quality carbon steel | FRP, Stainless steel, Rubber Lining | Wear-resistant layer or wear-resistant liner, ceramic patch | High temperature high quality alloy steel | FRP, Aluminum alloy | Can be specified | |
| Air inlet cone | High quality carbon steel | FRP, Stainless steel, Rubber Lining | High quality carbon steel | High quality carbon steel | High quality carbon steel | Can be specified | |
| Casing | High quality carbon steel | FRP, Stainless steel, Rubber Lining | High quality carbon steel | High quality carbon steel | High quality carbon steel | Can be specified | |
| Air damper | High quality carbon steel | FRP, Stainless steel, Rubber Lining | High quality carbon steel | High quality carbon steel | High quality carbon steel | Can be specified | |
| Main shaft | High strength carbon steel, Alloy structural steel | Can be specified | |||||
| Bearing | ZWZ, SKF, FAG, NSK | Can be specified | |||||
| Bearing housing | Cast iron | ||||||
| Foundation bolts | GB799-1988 | ||||||
| Option parts | System base frame, Protective screening, Silencer, Inlet & Outlet flexible connections, Inlet & Outlet counter flange, Air damper, Electric actuator, Shock absorber, Diaphragm coupling, Fluid coupling, Motor rain cover, Temperature sensor, Vibration sensor, Soft starter, Inverter, Special Electrical Motor, System monitoring Instrument. | ||||||