Industrial Filters: Industrial Filters characteristics

Industrial Filters are employed for collection of dry free-flowing dust. Usually dust from the dust-laden air that enters by suction or positive pressure into the hopper. When this flows across the filtering media, the dust is kept on the filter element and the clean air passes through. The bags are occasionally cleaned by Reverse Pulse Jet type method after a certain time period. Bag filter are produced according to various filtering purposes. These are made of glass fiber or synthetic fiber.

Industrial Filters characteristics:-

 1- Industrial Filters are suited for mostly all kinds of air pollutants having particle size less than five microns.

2- Industrial Filters have Reverse jet type cleaning process, which ensures maximum cleaning efficiency during work.

3- Industrial Filters are acceptable for fixing with nut-bolts or welding also.

Types of Industrial Filters:-  Industrial Filters are of two kinds

1-Coarse Mesh Filters:-

Coarse Mesh Industrial Filters are also employed as primary filters. These are applied in storage room, warehouses, where the requirement of indoor air is less demanding. Coarse Mesh Industrial Filters are manufactured of synthetic material is also applied in multi-stage filtering system. It is classified as follows.

G3 Synthetic Bag Filter-

Industrial Filters of this type are recommended for high performance pre filter or low effectiveness secondary filters for all sensitive indoor climates.  Industrial Filters of these styles are used in hospitals and the food industry where non-glass filters are preferred. These are self-supporting Industrial Filters, uniquely ideal for high humidity and heavy dust collection.

G4 Synthetic Bag Filter-

Industrial Filters of this class are often used in those building where non-glass filters are preferred. These are mostly applied in building ventilation, hospitals and food production. These Industrial Filters are also self-supporting and uniquely acceptable for high moisture and dust collection. These Industrial Filters are produced with exclusive fiber          bonding technology and pocket design. Technology and Design of these bags provide     high-efficiency, high dust holding efficiency, low energy consumption and a longer filter life.

Internal Structure:-

The inside and exterior frames of these Industrial Filters are made of galvanized steel or incinerate plastic. To assure tightness filter pockets are attached to the external frame. Correct opening of the filters pocket is confirmed by using distance holders sewed on the fabric. So reliable and correct functionality and high dust handling capacity is assured. The sewing seams are sealed with hot melt glue.

2- Fine Filters-

 Industrial Filters of this category are used for a great range of purposes, such as for filtering air supply and exhaust. These Industrial Filters are manufactured of synthetic or glass fiber substance. These Industrial Filters are produced to filter of intake and circulation air in air condition systems installed in offices, public premises and industry. It is categorized as follows.

F5 Synthetic Bag Filter-

Industrial Filters of this category provide a specially recommended high performance secondary               filter for all sensitive indoor climates. These are self-supporting bag filter, uniquely perfect for high moisture and dust collection. F5 Synthetic Industrial Filters are also constructed with exclusive fiber connection technology and pocket design, which provide high initial capability and high dust handling capability.

F6 Synthetic Bag Filter    

Industrial Filters of this group is made of synthetic non woven fiber. These are stitched with special method and present excellent filter economy, efficient dust control with a low resistance and moisture resistant. F6 Synthetic Industrial Filters have a rather unique bag sorts to assure airflow uniformly throughout the entire bag. The affectivity of these Industrial Filters makes a acceptable filter solution for almost any commercial or industrial air handling system.

F7 Synthetic Bag Filter

Industrial Filters of these categories are Secondary filter design, which has excellent air cleansing and dust handling characteristics and subsequently increases service life. These are             made from individually welded pockets of ultra fine multilayered media which has been continuously sealed on a non woven scrim backing media. Design and spacer of these Industrial Filters assures superior technical performance.

F8 Synthetic Bag Filter

Industrial Filters of this sort contains multi pockets. These are made of synthetic fiber with special stitch approach. These Industrial Filters provide excellent filtration economy and effective dust control, with a low resistance and humidity resistant.

F6 Glass Fiber bag Filter

F6 Glass Fiber Industrial Filters are employed in all ventilation and air condition systems. Industrial Filters of these designs are made of micro-fiber media which is proven and tested under any conditions. The micro-glass fiber is made of fine glass fiber connected by an adhesive agent.

F7 Glass Fiber Bag Filter-

Industrial Filters of this type are employed to remove dust and all the most harmful big particles from the air.   

F8-F9 Glass Fiber Bag Filter

Industrial Filters of this class used to eliminate a notable part of the emission cased by traffic and power production from the air. And also distinguishes proficiently for example cigarette smoke, bacteria as well as particles causing dirt collection and darkening.

FBD Filter Bag: Features of FBD Filter Bag

FBD is the abbreviation of Fluid Bed Dryer Bag. FBD FilterBag is generally used in pharmaceutical food and chemical industry. FBD Filter Bag is precisely made multi tube filter bags for maximum filtration area in a confined space. Now days FBD Filter Bag is readily available made of different type of superior quality fabrics as per the need of the material involved in drying. FBD Filter Bag is produced using the premium quality raw materials. FBD Filter Bag, which is used in pharmaceutical industry is very performance oriented. Because these are manufactured of using the latest sophisticated technology. Fabrication design of for FBD Filter Bag is readily available for all makes and model of fluid beg dryer systems. Now days a lot of standard alternatives with most existing cap and skirt designs FBD Filter Bag are available in the market. FBD Filter Bag guaranties for easy set up and perfect fit with fluid bed dryers on the basis of its high quality.

FBD Filter Bag is also customized for specific need and dryer equipment.  All available designs and measurements can be customized to any requirement.

FBD Filter Bag has following parts-

1-Tubes - Tubes which welded (without stitching holes) are useful to diminish product loss. Its standard diameter is 160 mm and manufactured from conductive fabrics.

2-Flat Cap - Flat cap of FBD Filter Bag contains a conductive ribbon to ensure full conductivity. It is reliable and sandwich construction (known as fabric-felt-fabric) to avoid dead spaces.

3 - Cone Cap- This part of FBD Filter Bag is also a firm sandwich construction, which is known as fabric-felt-fabric is utilized to avoid dead spaces.

4- Skirt - Skirt part of FBD Filter Bag is are two typed construction. One of these is with 6 mm cord and other is made with a zip.

Features of FBD Filter Bag -

 Feature of FBD Filter Bags are as follows -

                A- It is made up of welded tubes to decrease precious product loss.

                B-It has unique electrical resistive certificate.

                C-It has excellent resistant to wear and abrasion.

                D-FBD Filter Bag is made of extremely durable medial.

                E-FBD Filter Bag is a complete range of pharma-grade fabrics inclusive conductive fabrics.

                F- FBD Filter Bag handles exceptional resistance to premature blinding.

                G-High flow rates of FBD Filter Bag are Coupled with proficient particle retention.

                H- FBD Filter Bag is ideal to fit for all dryers.

                I-Its surface is smooth.

                J-It is manufactured with CAD controlled laser system .

                K-FBD bad has pharma label, so its usage is completely safe in pharmaceutical industries.

                                          

Benefits of FBD Filter Bag- benefits of FBD Filter Bag is as follows-            

A- FBD Filter Bag guarantees higher efficiency. It decreases precious product loss.           

B-FBD Filter Bag boosts safety. It offers proved conductivity of assembled bag.

C-No product contamination from loose fibers.

D-FBD Filter Bag delivers optimal service life of fluid bed dryer systems.

E-FBD Filter Bag reduces risk of holes forming at the skirt area.

F-FBD Filter Bag provides highest dryness.

G-FBD Filter Bag present improved production rates.

H-FBD Filter Bag offers low down time of fluid bed dryer.

I-installment of FBD Filter Bag is easy, not complex.

J-FBD Filter Bag provides easy cleaning and easily solid cleaning facility.

K-FBD Filter Bag can apply in broad versions of usage. For example it can be used in medicine industry, chemical and petroleum industry.

Dust Filter Bag - Types of dust filter bag

Now a day’s dust filter bag is required mainly by all the manufacturing plants. Dust filter bag is employed to purify pollutants from the factory atmosphere. Dust filter bag is also available in fabric with special surface coating and finishes.

                1- Plain – It is natural finish. It is a typical purpose matter

                2-Singed-It is finished by exposing media to open flame to burn off any loose fibers. Dust            filer bag improves dust layer formation.

3-Glazed- It is accomplished by running media over the hot roller which melts fibers and results                in a smooth eggshell finish. Dust filter bag also improves the dust layer release.

4- Acrylic Coated- Air permeable acrylic surface coated polyester for moist situations.

5- Flame retardant- Dust filter bag is not flame -proof. But it guarantees a self extinguishing feature that is applied when sparks are involved during grinding process.

6-Teflon Membrane- Membrane of dust filer bag delivers a remarkably smooth high-efficiency finish.

7-Fiber glass- Dust Filter Bag made from fiber glass is high temperature and chemical resilient woven fabric.

                8-Dust filter bag is spark proof.

                9-Dust filter bag is anti adhesive.

                10-Dust filter bag is micro porous. It is also anti acid and other special finishes.

Types of dust filter bag-

A- Fiber Glass Dust Filter Bag

The dust filter bag is manufactured from glass fiber woven fabric that is special treat. This product has good heat resistance ability and utilized at 260 degree centigrade for a long time. It is ideal heat-resistant purification matter and has good stable size with good chemical repellent power, anti water, anti humidity and outstanding dust peeling features. The purification efficiency of this kind of dust filter bag is more than 99.5 percent. Now a day the glass fiber is generally used in cement, carbon black, electric power and metallurgical industries for eliminating dust in the condition of high temperature.

B-High Temperature Filer Bags-

If collector gas stream is from 150 degree centigrade to 260 degree centigrade. In this scenario high temperature dust filter bag typed dust filter bag is implemented. Dust filter bag of this type is made of effective media on high temperature, which is mostly suitable with any gas stream. Dust filer bag of this class can be used in temperature between 150 and 260 degree centigrade in combination with strong acid or alkaline mixture. Dust filter bag of this type is made of Nomex, Ryton, Teflon and fiber glass.

C- Ptfe Membrane Lamination Filter Bags-          

Dust filter bag of this category present PTFE membrane laminated filter bags to avoid the disadvantage of regular depth filtration media. In normal media they felt fabrics at ac a media for the built up of a dust layer. Which in turn capture even more and finer substances of dust? The dust filter bag is washed continuously to eliminate some of the dust layer and then start the process all over again.

PTFE membrane lamination on this dust filter bag works surface filtration. Where the filtration is performed by a micro porous PTFE membrane which is laminated to a process well-suited filter media. The support media delivers in this dust filter bag the physical strength to fabric whereas filtration is done by the membrane. This phenomenon is termed surface filtration. This form of dust filter bag offers benefits as follows-

                1- Consistently low pressure drop throughout the life of the filter bag.

                2-Lower outlet emissions.

                3-may take process upset more easily and thus minimizes downtime.

4-Generally the life is double than a common filter bag if all other issues in the bag house remain same.

5-Lower operation and maintenance cost.

6-Great product recovery.

D-Pulse Jet Filer Bags-

This kind of dust filter bag is manufactured with sophisticated non woven felt. This is the  material which brings high overall performance and strength. This type of dust filer bag is applied for flying dust filtration in the industries.

E- Shaker / Reverse Dust Filer Bags-

Dust filer bag of this variety is produced from woven fabrics (for example spun and filament)     and non woven felt medias and employed in manufacturing plants for filtration purpose.

Filter Cages: Types of Filters cages in INDIA

Filters cages are a well-known and standard product for industry to remove particular substance from a flowing stream of fluid by passing the fluid through a filter device that traps these substances. Practically gases that have smoke soot and other particulates generated by process such as combustion of fossil fuels etc have been pass through woven or non woven filtration fabrics for cleaning such gasses prior to further handling of such gasses , or exhausting these kinds of gases to the atmosphere . Filters of these types are called as fabric filters or bag filters. A bunch of such filters are employed to provide dust collectors.

A tubular shaped fabric filters are inlay supported by a cage made of wires. These known as filter Cages. These Filter Cages are principally used to retain the appearance of bag filter. Filter Cages are ready in varied length and designs. Bag cages are on the market in the size from 12 to 14 feet (near about 3.5 to 4.25 meters) and a huge filtration system, I.e a bag house might have between 3000 and 5000 filter bags and concerned cages.  Filter Bag Cages are manufactured with using longitudinal steel wires with intermittent circumferential wires and top and bottom caps . These steel wires and other things are welded collectively using special machines and shipped as fabricated unit. It is inherent that the assembled filter cages will have a large volume but will be manufactured from a relatively small amount of materials with respect to the total volume filter bag cage. Typical materials with which filter cages are manufactured are as follows.

            1- MS Wire- Main features of ms wire are-

                        It made of 100% soft steel.

                        It is anti corrosive

It works outstanding performance.

It is highly durable.

It is resistant to high wear and tear.

It is offered in diverse sizes from 4mm t0 1mm I.e (8swg to 20 swg)

2- GI Wire – Galvanized Iron or (GI) wire is applied in many practical application which include vineyards, welded mesh for poultry forms, filter cages, gabions for soil protection, chain link , barbed wires and concertina wire for various mechanical engineering purposes.

3-304 Stainless steel-  It is a most versatile and normal 18/18 stainless steel. It is on the market in a wider range of products, types and finishes than other categories. It has good forming and welding characteristics. The balance austenitic structure of grade 304 enables it to severely deep          drawn without intermediate annealing.  Which has made this grade dominant in the fabrication of drawn stainless steel parts such sinks, hollow-ware and saucepans etc.

                       

4- 316 /316-L stainless steel- It is a type 316 standard molybdenum-bearing grade. It is second in significance to 304 among the austenitic stainless steel.   It provides 316 better overall corrosion resistant properties that grade 304. Particularly high resistive to pitting and crevice corrosion in chloride environments. Steel of this level has excellent welding and forming qualities.

Steel of this caliber is readily brake or roll formed into a wide variety of parts for functions in the industrial field architectural. Steel of this grade has outstanding welding qualities. Post-weld annealing is not required when welding thin sections.

Filter Cages are provided of following types-

            1-Bottom Loading groove top

            2-Straight Flange

            3-U-Cup with two piece design

            4- U- Cup

            5- U-Cup with built-in venturi

            6- Bottom loading high groove