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BB25 series centrifugal ventilation fan
The BB25 series have the characteristics of high efficiency, flat performance curve, wear resistance, and work stability.
It has excellent performance and can output high pressure.

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Description
The BB25 series have the characteristics of high efficiency, flat performance curve, wear resistance, and work stability.
It has excellent performance and can output high pressure.
It can be used to transport normal temperature or high temperature non-flammable gases, particles, powder, debris, fibrous materials etc.
The fans are commonly used in large-scale industrial systems such as large dust removal systems, industrial desulfurization and denitrification, large industrial boiler systems, large industrial rotary kilns and calcining kiln systems, and mineral powder sintering (sintering machines) and so on.
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.
 
 
 
 
 
Structure
Drive, we usually divide the fan into:
In the process of choosing the fan, please select the appropriate fan according to the working conditions.
Specification

Series no.

BB25 series

Feature selection

Normal

anti-corrosion

wear-resisting

High temperature

anti-explosion

Remarks

Performance

Impeller diameter

1500-3600mm

 

Rotation speed

≤4000rpm

 

Pressure range

2304-140687Pa

 

Flow range

52395-575176㎥/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.

Features

01

It can output higher outlet pressure and can work in high temperature medium, suitable for any need to transport high pressure & high temperature gas industrial occasions.

02

According to customer performance requirements customized design, and optimized by CFD technology, the energy consumption is lower than similar models.

03

For the material of impeller and main spindle, we will choose high-strength carbon steel, low-alloy steel, high-temperature alloy steel, high temperature high-strength alloy steel for different working conditions temperature and working speed, so that the impeller and main spindle at high temperature still maintain reliable strength.

04

For dusty gas, we can meet all kinds of working conditions from small amount of dust to large amount of dust. After special treatment, the hardness of blade surface can reach HRC60~70, which can extend the life of the impeller by more than 3 times.

05

The moderate bonding between the components is tight, and the sealing performance is good, ensuring that the output pressure will not be reduced.

06

After annealed treatment, the internal stress of the structure generated during welding can be completely eliminated to ensure that the impeller will not creepage and crack.

07

Ultrasonic flaw detection on the welding seam and main spindle of the impeller to ensure that there are no welding defects or material defects and ensure the strength.

08

The impeller is subjected to a high standard of dynamic balancing adjusting to ensure stable operation of the fan.

09

Test assembly after production is completed to ensure that there is no interference between the components.

10

Provide on-site arrangement and guidance services.
Inquiry
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