Air Pollution Control:
Indpro Engineering Systems Pvt. Ltd. has been involved in Air pollution control business for last seven years. During these surpassed years Indpro has more than two hundred installations all over India. Indpro's dust collectors are sold as 'SAMAIIR' in the market. The name comes from the Sanskrit word 'SAMAIIR', which means clean and pure air. We provide high end engineering for dust extraction system in every aspect of industrial process.
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Fabric Dust Collectors –
Commonly known as baghouses, dust collectors and bag filters, Indpro’s fabric collectors use filtration to separate dust particulates from dusty gases. They are one of the most efficient and cost effective types of dust collectors available and can achieve a collection efficiency of more than 99% for very fine particulates.
Dust-laden gases enter the baghouse and pass through fabric bags that act as filters. The bags can be of woven or felted cotton, synthetic, or glass-fiber material in either a tube or envelope shape. The high efficiency of these collectors is due to the dust cake formed on the surfaces of the bags. The fabric primarily provides a surface on which dust particulates collect through the following four mechanisms:
- Inertial collection - Dust particles strike the fibers placed perpendicular to the gas-flow direction instead of changing direction with the gas stream.
- Interception - Particles that do not cross the fluid streamlines come in contact with fibers because of the fiber size.
- Brownian movement - Submicrometre particles are diffused, increasing the probability of contact between the particles and collecting surfaces.
- Electrostatic forces - The presence of an electrostatic charge on the particles and the filter can increase dust capture.
A combination of these mechanisms results in formation of the dust cake on the filter, which eventually increases the resistance to gas flow. The filter must be cleaned periodically. Our dust collector uses pulse – jet or pressure – jet cleaning mechanism. This type of mechanism uses a high pressure jet of air (compressed air-induced pulse) to remove dust from the surface of bags. Bags in the bag house compartment are supported internally by rings or metal cages. Bags are held firmly in place at the top by clamps and usually have an enclosed bottom (the bag is sewn closed at the bottom). In another design, a snap ring is sewn into the top of the bag which fits into the tube sheet opening. The cage slides inside the bag and the top of the cage sits on the tube sheet. Dust-laden gas is filtered through the bag, depositing dust on the outside surface of the bag. Pulse-jet cleaning is used for cleaning bags in an exterior filtration system.
| Main Highlights of SAMAIIR Fabric Dust Collectors are: |
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Easy to install |
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Compact and maintenance free |
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Effective cleaning through Pulse Jet mechanism |
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Dust collection efficiency of 99% |
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Outlet emissions can be achieved upto 10 microns |
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Available both in matrix and circular configurations |
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Bag removal from top |
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Bag length available from 4 feet to 12 feet |
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Bag diameter available are 116 mm and 160 mm |
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D.P. Gauge for correct pressure difference measurement |
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Dust collectors for high pressure application |
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Filter media selection as per application |
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Accessories as per client’s request |
Fabric Bin Vent Filters:
These type of filters find their applications on silo tops or on bunker tops. Principle of operation same as pulse jet, the filters do not have hopper, they discharge dust directly into silos or bunkers.
| Main Highlights of SAMAIIR Fabric Dust collectors are: |
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Easy to install |
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Compact and maintenance free |
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Effective cleaning through Pulse Jet mechanism |
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Dust collection efficiency of 99% |
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Outlet emissions can be achieved upto 10 microns |
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Available both in matrix and circular configurations |
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Bag removal from top |
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Bag length available from 4 feet to 12 feet |
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Bag diameter available n 116 mm and n 160 mm |
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D.P. Gauge for correct pressure difference measurement |
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Dust collectors for high pressure application |
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Filter media selection as per application |
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Accessories as per client’s request |
Dust Extraction Systems:
Review of design criteria: The first step in reviewing design criteria is determining the flow rate of the gas being filtered by the bag house, which is measured in cubic meter per hour. The gas volume to be treated is set by the process exhaust, but air to cloth ration is decided by Indpro. The air to cloth ratio that is finally chosen, depends upon the specific design features including fabric type.
Physical and chemical properties of the dust are extremely important for selecting the fabric
that will be used. These include size, type, shape, and density of dust; average and maximum
concentrations, chemical and physical properties such as abrasiveness, explosiveness, electrostatic charge, and agglomerating tendencies. For example, abrasive dusts will deteriorate fabrics such as cotton or glass very quickly. If the dust has an electrostatic charge, the fabric choice must be compatible to provide maximum particle collection yet still be able to be cleaned without damaging the bags.
Indpro analyses all the factors, study the application and understand the need of process and thus designs and provides an effective dust collection system. Dust extraction system includes dust collector, blower, aspiration hoods and ducting and stack. Indpro expertises design of dust extraction system in following process:
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Lead and lead products |
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Cement and minerals |
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Plastic and polymers |
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Cotton dust and products |
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Shot blasting |
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Grinding and cutting |
Cartridge Dust Collectors:
Indpro is one of the major manufacturers of cartridge type dust collectors. SAMAIIR cartridge dust collectors are well known in market for their performance and design.
| Features and benefits include: |
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Near zero emissions meet the required regulatory standards. |
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Exceptional dust cake release results in lower pressure drop. |
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Increased filter element life and reduced cleaning cycle saves on operating cost. |
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Compact design results in easy installations and removal. |
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Cartridge removal from top. |
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Pulse jet cleaning mechanism for effective and efficient cleaning. |
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Available in matrix and circular configurations. |
| Application Areas: |
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Food and food products |
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Pharmaceuticals |
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Grinding and milling |
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Pigments |
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