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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simoblower

№343 Simo Road, Fengquan District, XinXiang City, HeNan Province, CHINA

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

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.

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

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.

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.

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

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.

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.

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

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

Provide on-site arrangement and guidance services.

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