We have a wide range of Centrifugal Fans to suit any type of Industrial Application. Whatever is the requirement, be it high efficiency, low noise, clean air, handling light dust; a suitable centrifugal fan can be found from our range. Centrifugal fan impeller designs include: backward bladed, backward laminar, backward curved, backward aerofoil, flat backward, forward curved, radial paddle blade and radial blade high pressure blowers. All the types of centrifugal fans that we supply are designed to meet each customer's individual specification.
Size : Low, medium and high pressure
Capacity : 1000 to 2,50,000 CMH
Pressure : upto 1200 mmwg in single stage
Impellers statically and dynamically balanced as per relevant standards. Casings fabricated from heavy gauge steel with heavy duty pedestals. Fan orientation is provided to suit the requirement. Special purpose Centrifugal blowers of high temperature, fume/ Vapour exhaust, dust handling, material conveying , induced draft and forced draft applications are also offered with the blade profiles as shown. The fans are used in industries like Automobile, Chemical, Paper, Fertiliser, Steel, Power Houses, Pharmaceuticals, Rice mills for varied applications in a combination of capacity and pressure.
Supply/exhaust fans
Size: 300 mm to 2000 mm sweep
Capacity: 2000 to 2, 50,000 CMH
Pressure: upto 65 mmwg.
Housing fabricated from heavy gauge sheet, impeller is having high efficiency aero-foil section fixed or adjustable pitch blades, impellers are statically and dynamically balanced as per relevant standards, Inlet cone and outlet diffuser can be provided to further improve the efficiency depending upon the application.
Ventilation fan
This is a high pressure fan comprising of two impellers with different number of blades, connected in series and rotating in opposite directions. Each impeller is driven by a direct-coupled motor. The axial flow fan type has a wide range of applications and has proved especially suitable for ventilation of Mines, Tunnels etc. where it can be directly fitted into the ventilation duct. It is further important to note that this fan is reversible and therefore, it can be used both as supply and exhaust fan.
Industrial mancoolers
We bring an effective solution to the cooling problem in the industrial working places for men, materials and machines. The Range covers the following three types of Mancooler:
ITM : INDOFAN Tubular Mounted ICM : INDOFAN Column Mounted IPM : INDOFAN Pedestal Mounted
Bag filter
Bag filter consists of a number of tubular filter bag sleeves arranged in a square or rectangular matrix. These sleeves are supported from inside on steel wire cages to prevent them from collapsing .The dust laden air is drawn through the filter bag sleeves by an externally connected Centrifugal Blower in its downstream end and thereby dust gets collected on the outside surface of the filter bag sleeves. The sleeves are periodically cleaned by short blasts (pulse) of compressed air.
These blasts are in the opposite direction to the flow of dust laden air. This reverse flow flexes the fabric bags away from the cages and loosens the dust cake collected on to bags and the process is repeated for every row of bags. The filter media (standard fabric) is synthetic and non-woven needled felt. The suiting filter fabrics/media are available for different air/gas temperatures and as per the application requirement. Apart from High ratio (Pulse jet) Bag filters, low ratio Bag filters of mechanical shaking type are also offered by us for specific applications.
Venturi scrubber
State of art technology venturi scrubbers are offered, which are most effective equipments for scrubbing the heavy smoke and dust from gas stream. Because of their ability to achieve high particle removal efficiencies and handle heavy dust loadings without plugging, venturi scrubbers are the most popular scrubber used to remove particulate matter. Venturis produce high particle to liquid droplet velocities in order to achieve good particle removal.
Its important features are:
a. Compact design. b. Easy & stable Operation. c. Good Scrubbing efficiency d. Suitable for high concentration of pollutant. e. All static construction, so easily maintainable.
Cyclones and multi-cyclones
Cyclones and Multi-Cyclones provide ideal solution to the problem of collecting the shavings, extracted dust in working plants, bark & chips, and adapted in other dust extraction systems. Centrifugal force causes the suspended material to move towards the wall of the cyclone from where the separating out material drops by gravity along the wall of the cyclone unit; leaving the air to escape through the top. A number of small cyclone (collector) cells are grouped together to form a multi-cyclone, which attain high efficiency due to its smaller diameter feature; and is simultaneously suitable for handling large air quantity. The main advantage of cyclone include simplicity in design and construction, ease of operation and maintenance, has no moving parts and operates on a lower pressure drop - thus requiring lower energy for dust separation . The main limitation is its inability to offer higher efficiencies for smaller and lighter particles. A number of cyclones can be operated in parallel to treat larger volume.
Packed bed type scrubber
Acid fume scrubbers are offered, which are most effective equipments for scrubbing water soluble gaseous pollutants. In this device the foul gas is brought in contact with water so as to dissolve the contaminant and thus the gas stream is cleaned.
Its important features are:
a. Compact design. b. Simple & Reliable Operation. c. High Scrubbing efficiency d. Suitable for high or low concentration of pollutant. e. All static construction, so easily maintainable.
a. Centrifugal/Vane Wet Scrubbers b. Impingement Wet Scrubbers c. Dynamic/Wet Fan Scrubbers d. Multi-Venturi Wet ScrubbersThe above scrubbers can be selected depends upon the application.
Wet scrubber
This unit is suitable for low pressure drop applications involving light and medium dust loadings and slurry recycling; It achieves high collection efficiencies in the 2-5 micron range with low liquid rates. It utilizes a tangential gas inlet and stationary scrubbing vanes to induce centrifugal motion of the gas for removal of dust. There are no moving parts. It's non-clogging, self-draining design makes it an ideal choice for light and medium fume/smoke scrubbing system.