Delivery Time:20-40 working days, depends on order amount and specification
Certification:ISO9001/ISO14001

 
Single Stage Centrifugal Blower, 15000m3/h,  400KW,  Arero metal  impeller
 

About GS
 

       Single-speed High-speed centrifugal blower is the new product which designed by B-Tohin Machine.   The pneumatic performance and structural design of the series of products has reached the advanced level 

of similar products at home and abroad .The blowers are widely used in sewage water treatment, metallurgy, 

fluidization of circulating fluidization bed boiler in power station, exhaust gas desulphurization, pharmacy , 

gas booster and so on.

Specifications
 

Model No.	GS250-1.75
Discharge differential pressure	75KPA
Motor power	400KW
Air capacity	250m3/min
Motor type	380/400/415/440V/6KV/10KV, 3PHASES, 50/60HZ
Motor brand	Standard: Siemens Beide or Wannan motor Siemens and ABB motor for your option

Applications
 
a. For Cement industry: cement conveying blower,ventilating, etc.
b. For Sewage Treatment System: aeration blower, back-washing blower, etc. 
c. For Pneumatic Conveying: to conveying powder materials, such as flour, cement, sand, grain, etc.
d. For Dust Collecting, dust cleaning, ventilation in some factory, hospital, buildings, etc.
e. For Electric Power Plant: gas conveying, oxygen increasing, ventilating, dust cleaning, etc.
 
 

Key Technology
 

1. Inlet guide vane device position——in front of blower impeller Function——Not only for adjusting the blower capacity within  45% - 100%, but also for ensuring the blower to reach the highest efficiency within adjusting scope, especially when operation parameters deviating from the designed data (low temperature or low pressure). Adjusting——automatic or manual operation by clicking the touch screen on blower control box. Under the automatic operation, the inlet guide vane is adjusted by electric operator at a set ratio after it receives 4-20mA DC signal, while under manual operation or maintenance condition, the vane is adjusted manually.
2. Mature volute design   Reliable pneumatic performance, high efficiency, multi-variable efficiency of 85 %.
3. Impeller of high efficiency The curve for the impeller is selected recurring to simulate working condition on computer, and better fitting for the actual flowage of gas. Made of aerial aluminum alloy or stainless steel, open path backward bent (smallest dip angle of 6 degree), surface fine machined.
4. Step-up gear box structure and bearing of high reliability     The gear box is of horizontal –split structure,  volute casing  connected to lower casing and separated from upper casing,through which shorten the time required for unloading box cover. High-speed shaft adopts hard thrust disc technology, high-efficiency and low mechanical loss confirmed by line contact. Ellipse ( dislocation ) bearing adopted for big gear,tilting-pad bearing for high-speed gear. The shaft of blower and gear is made of heat-treated forging steel and proper grinded. Every horizontal critical speed is within the scope of±15% than the normal speed, and torsion resonance speed is within the scope of±10% than the running speed, all rotating parts is dynamic balanced. The step-up gear is of Parallel Axis helical type with integral small gear and rotating shaft. Made of surface-quenching forging alloy steel and precisely grinded, the gear’s service index is 1.8 at least.
5. High-precision gear driving Gear of the highest quality grade adopted Gear precision grade is stabilized at ISO1328 5~4 The highest precision grade can reach 3.  Precision grade equal to the standard AGMA  or DIN
6. Connection between impeller and high-speed shaft Adopt the connection type of  straight end-face key (pin) and triangular shaft The highest power can be transferred reaches  3,000 kW. Convenient in assembling and disassembling without damage to parts
7. Seals of high performance The material of seals is alloy of soft texture. (spiral seal adopted) Reliable function, long service life No leakage pr