Before you import a dust filter cartridge, read this guide.

It covers all the critical information you need to know about dust filter cartridges.

From design, benefits, properties, filtration mechanism, and uses, among other critical aspects.

Let’s dive right.

What is Dust Filter Cartridge?

It is a filter cartridge specifically designed to remove dust particles and other contaminants like rust from an air supply.

 dust filter cartridge

dust filter cartridge

What are the Components of a Dust Filter Cartridge?

A dust filter cartridge has the following components:

Housing Unit or Bowl

This part will house all other components that make up a dust filter cartridge.

Inlet Port

This is the entry area of air and has internal caps that will force air to move upwards.

The inlet port must fit your piping system.

Outlet Port

This part is responsible for discharging clean air out of the dust filter cartridge.

Also, its size should match that of the inlet port to prevent restrictions in airflow.

Cartridge

It is a fibrous material that will trap and eliminate contaminants and dust from a stream of air.

Sump Area

This is also the quiet zone and one can locate it at the bottom part of the dust filter cartridge.

It will collect all the contaminants after filtration and has a barrier that will prevent recontamination of clean air.

Drain

This can be a manual or automatic system.

It operates by eliminating the dust and contaminants out of the dust filter cartridge.

Filter Cap

This part will direct the flow of air within the dust filter cartridge.

It has an arrow at the exterior part which will guide you in the direction of airflow hence assist in installation.

How Does a Dust Filter Cartridge Operate?

Here is how this filter operates:

1) Ensure the dust filter cartridge is in good working condition.

2) The system will use a fan to direct dirty air inside the dust filter cartridge and this happens via the inlet port

3) Air will move through the filters as the dust and other contaminants remain on the outside of the system.

Depending on the micron rating of the filter, it will prevent dust particles of certain sizes from going through the filters.

The filter has several sheets of dust collecting material that increase the surface area.

4) Clean air will exit via the outlet ports as dirt and dust particles collect at the bottom of the system.

What are the Applications of a Dust Filter Cartridge?

Several industries use a dust filter cartridge and they include:

Dust Removal

The dust filter cartridge will eliminate dust from various applications that would make them difficult to operate.

This is because they minimize the dust levels from flowing in your system thus ensure cleanliness and effectiveness.

Pharmaceutical Industries

Several pharmaceuticals use a dust filter cartridge in their daily operation.

One can use a dust filter cartridge to filter plasma protein, gelatin, activated carbon, etc.

Also, you can use it to filter medicine that little children consume.

Besides, during the recycling of materials, you can use a dust filter cartridge to filter out catalytic agents.

Turbo-machinery

This is a vital part of several machines like power generation, automobiles, etc.

A dust filter cartridge will ensure that dust will not enter the system during operation.

For example, it will filter the air that the rotor blades use for rotation purposes.

When you do not use this filter, particles accumulate in the system making them less efficient.

Automotive industries use this filter to clean air that will provide power to the vehicles.

Laboratories

Several laboratories use dust filter cartridges for various products in the processing stages.

For instance, in the food and beverage industries, one can use it to filter sugars from grains.

Also, you can use it to filter proteins when it is in the fermentation stage.

Dust filter cartridges of different sizes will enhance the filtration process.

Some other applications are the filtration of juice, soft drinks, edible oil syrup, etc.

The type of filtration media will influence the dust filter cartridge you will use.

HVAC Systems

This refers to the heating, ventilation, and air conditioning system.

It will suck air from the outside and clean it before it reaches the internal environment.

Filtration of dust and other contaminants happens within the filters.

The result is clean air that human beings can breathe in with ease.

What are the Benefits of a Dust Filter Cartridge?

Here are some of the benefits of using this filter:

Ease of Use

These filters are easy to use as you only need to understand how it operates and the cleaning procedures.

Also, they use less voltage thus lower your power consumption.

Efficiency

Dust filter cartridges have an efficiency of 99% which is higher than other filters.

This efficiency makes it possible to conduct accurate filtration of dust in the air.

It, therefore, means you get clean air that you can use in varying applications.

Ease of Maintenance

It is easy to replace a dust filter cartridge than it is for baghouse filters.

This lowers your production and labor costs.

Simple Design

A dust filter cartridge has a simple design meaning you can install and use it with ease.

These filters come in a compact design meaning it is ideal for small spaces and indoor operations.

What are the Limitations of a Dust Filter Cartridge?

These limitations should not deter you from purchasing and using this filter.

They include:

Maintenance

If you are dealing with large amounts of dirty air, you will need several maintenance processes.

This is because a differential pressure drop will decrease the efficiency of the dust filter cartridge.

Also, some sharp objects can easily damage the filter during operation as they are woven materials.

Temperature Limitation

Since it uses a woven or fiber material, it can only withstand a specific amount of temperature range.

When you use them in high-temperature areas, it may damage and decrease the filtration process.

This is a limitation, especially when dealing with hot air.

Humidity

Water and vapor may damage the material that makes a dust filter cartridge.

This will therefore increase the maintenance cost.

What are the Different Dust Collection Systems Available?

Examples include:

Pulse-jet Dust Collection System

This is a kind of baghouse unit and functions via rapid, high-pressure systems.

pulse jet dust collector

pulse jet dust collector

Cartridge Collection Systems

This system uses cartridges that have pleats and not bags.

The pleats make this system have a large surface area that lowers the air-to-cloth ratio and size of the system.

Shaker Dust Collection Systems

This is a shake-cleaning baghouse unit and cleans off-line when there is no airflow.

 shaker dust collector

shaker dust collector

Cyclone Dust Collection Systems

Here, centrifugal force will assist in separating dust from a stream of gas.

Cyclonic action in the cyclone collection chamber will purify the air.

cyclone dust collection system

cyclone dust collection system

Electrostatic Precipitators

This system uses static electricity to eliminate ash, soot, and dust particles from exhaust air.

 electrostatic presipitations

electrostatic preceptors

Baghouse Dust Collection Systems

These systems utilize long and cylindrical bags that come from fabric materials.

It has a heavy dust load capacity, durable, and can tolerate high temperatures.

 baghouse dust collector

baghouse dust collector

Action Booth Dust Collection Systems

This is a versatile system for air filtration that is powerful.

One can use it in blasting, sanding, and other dust-producing applications.action booth dust collector

action booth dust collector

Laser Pack Units

Processes that involve laser and plasma cutting will produce fumes, dust, and a variety of oxides.

This device will effectively eliminate dust and other contaminants as they are dangerous to breathe.

How Does a Dust Filter Cartridge and Baghouse Compare?

Dust filter cartridges are small, large surface area, and are easy to maintain.

Also, they can efficiently handle many applications and especially small particles.

Baghouses can withstand harsh applications such as abrasive, sticky, oily, or moisture applications.

Also, they can handle extremely high temperatures.

How Do Dust Collectors Clean a Dust Filter Cartridge?

Both the horizontal and vertical dust collectors use similar cleaning methods when it comes to dust filter cartridges.

Compressed air travels in pulses through the system in the opposite path of dirty air.

The pulses will blow the dust and particles away from the filters as they fall on the collection chamber.

These pulses ensure the dust filter cartridge works efficiently.

The filters can operate for a long time but will accumulate dust meaning no more air will pass through them.

This will cause a differential pressure drop and when the pressure is too high, it is time to replace the dust filter cartridge.

What are the Benefits of Using Stainless Steel in a Dust Filter Cartridge?

Stainless steel is one of the best materials that manufacture filter housings.

The advantages of using this material are:

  • It can handle high pressure and flow rates.
  • Stainless steel is easy to clean.
  • It provides an aesthetic appeal.
  • It will not crumble under high-temperature levels.

What Will Influence the Design of a Dust Filter Cartridge?

These factors are:

  • Total suspended solids [TSS]
  • Operating pressure
  • Operating temperature
  • Flow rate
  • Filtration rating
  • Service time
  • Type of operation
  • Cost

What are Some Technical Specifications of a Dust Filter Cartridge?

These specifications vary from one filter to another.

They include:

Materials

The material that makes the cartridge will affect its effectiveness and durability.

Size of Housing

This is the part that will house the entire system thus make sure the dust filter cartridge fits well.

Also, ensure it is durable and sturdy.

Nominal Volumetric Flow

This is the amount of air that flows in the cartridge at a given pressure.

The measurement is liters per minute [LPM] or gallons per minute [GPM].

It is a vital requirement as it affects how you will choose the right system.

Also, the nominal flow has to match the flow of the air you are filtering.

The size, material, and speed of the fluid will affect nominal volumetric flow.

Pressure Drop

This is an important factor to consider when designing a dust filter cartridge.

Differential pressure is the difference in pressure between the dirty gas side and the clean gas side of the filter.

Pressure drop happens as air flows in the filter cake and elements.

If you have a high-pressure drop, you are having a high energy cost.

Fans consume energy as they reduce differential pressure drop.

Depth of Filters

The deeper the dust filter cartridge, the more effective filtration will happen as more air gets into contact with the cartridge.

A shallow dust filter cartridge offers a coarse filtration process.

Dimension

Ensure you select a filter with the right size for it to offer effective filtration and fits in the system.

Too small or too large the dust filer cartridge than your application will not fit.

Dust Holding Capability

If you are filtering large amounts of air, you need a dust filter cartridge that has a high dust holding capacity.

This makes sure you do not clog the system leading to disruptions.

For small filtration needs, use a filter with a small dust holding capacity.

How Does a Surface and Depth Dust Filter Cartridge Compare?

Here is how these two compare:

Surface Dust Filter Cartridge

These will inhibit dust and contaminants from entering the medium meaning they remain on the outside.

After extensive use, particles will form a cake thus restrain air from flowing beyond the material.

Besides, they are considerably affordable and have a short life span.

Also, the filter medium has a low mechanical strength.

Depth Dust Filter Cartridge

These systems will trap dust and contaminants within the media material.

One can use a reverse flow method to clean the dust that is within the system.

They have a long life span and are expensive than surface dust filter cartridges.

Also, the filter medium has high mechanical strength.

What Material Can Make up a Dust Filter Cartridge?

There are numerous materials and they include:

  • PTFE
  • Fiberglass
  • Polypropylene
  • Nomex
  • Polyester
  • Ryton
  • Acrylic

What Materials Make up a Dust Filter Cartridge Housing?

Several materials can make a filter housing and include:

Carbon Steel

This material contains carbon and iron alloys.

Other materials present are copper, silicon, and manganese.

Its strength depends on the quantity of carbon you add.

Carbon steel grades include:

Mild Carbon Steel

It contains carbon levels between 0.05% and 0.3%.

This material is suitable for less demanding operations.

It is cheap to construct, has low tensile strength, and is easy to operate.

Carburizing will increase the hardness of the surface.

Medium Strength

Carbon level ranges between 0.25% and 0.6% and manganese levels range from 0.6% and 1.65%.

It is hard than a low strength carbon.

Heating the material as you add alloying material like nickel, chromium, or molybdenum will increase its mechanical hardness.

High Carbon Steel

The carbon content here ranges from 0.6% to 1.7% and manganese from 0.3% and 0.9%.

It is hard and has a high resistance to tear and wear.

Also, you can improve its hardness by adding some amounts of alloy elements.

This steel will withstand high pressures thus are less likely to break or crack.

Besides, it can rust and corrode easily thus unsuitable for sanitary usages.

Stainless Steel

This is among the best materials that make up a dust filter cartridge.

Stainless steel has carbon in low quantities of between 0.03% and 1% with iron.

Adding chromium [atleast 11%] will increase the resistance of this material to corrosion.

Depending on the amount of alloy you add, stainless steel comes in different grades like 200, 300, or 400.

Grade 300 stainless steel offers the best corrosion resistance.

Some include:

304 Stainless Steel

This has 8% nickel and 18% chromium.

Nickel improves the ductility of the steel.

Other materials present include carbon, silicon, manganese, and molybdenum.

It is cheap and formable than 316 stainless steel.

316 Stainless Steel

This has the following materials:

a) Chromium at 16%

b) Nickel at 10%

c) Molybdenum at 2% – 3%.

Using high amounts of molybdenum increase the corrosion resistance.

It is suitable for making housing filters that can withstand highly corrosive substances.

Also, it is good for a filter housing that will be in the constant presence of water.

Besides, it is stronger and expensive than 304 stainless steel.

Aluminum Housing

This is suitable for a wide array of applications as they are light.

However, they are not durable and are weak than steel or carbon steel and chemicals can corrode them.

Others include alloys like Inconel and Hastelloy.

What Factors Should You Consider When Selecting a Dust Filter Cartridge?

These include:

Size of Particles

When you plan to filter small particles, ensure the dust filter cartridge accommodates that.

Also, the micron rating of the filter will show you what particle size it can eliminate.

Composition of Air

Air that has several contaminants need a dust filter cartridge that can remove all those contaminants.

For instance, you may have rust, dirt, pollen, etc.

Efficiency

Choose a dust filter cartridge that has a high-efficiency level to cleaning the air.

This ensures you will always have clean air free of dust.

Available Space

The work area available will influence the type of dust filter cartridge you will install.

Large filters need large work areas to operate efficiently.

Budget

The amount you have will determine the filter you can afford.

This is because large filters will cost more than their small counterparts.

How Should You Maintain a Dust Filter Cartridge?

Maintaining a dust filter cartridge ensures it remains durable and continues to operate optimally.

Regularly clean the dust off the filter to ensure it allows more air for filtration.

Replace the entire dust filter cartridge when the differential pressure is too high.

How Can You Test for Quality in a Dust Filter Cartridge?

One can use processes such as:

Tensile Strength

This will offer data for stretch, elongation, and tear of the fabrics.

MIT Flex Test

It measures how the fabric weaves can withstand self-abrasion that happens within the dust filter cartridge.

Permeability Test

This test will determine the air handling capacity of the filter media.

Mullen Burst Strength

Here, the test indicates the strength of the fabric to withstand extreme pulsing or pressure.

What are the Cleaning Mechanisms for Filter Bags that Filter Air?

These are:

Pulse-jet

Here, you will use a high-pressure stream of air to remove dust and contaminants from the system.

Shaker

In this method, you will mechanically shake the filter bag to remove the dust that is on the filter media.

Reverse Air

Here, you will use a continuous stream of low-pressure air to eliminate dust particles.

How do You Clean Dust Filter Cartridge?

It is vital to know how often and when cleaning should take place.

Intermittent

Here, you will stop the fan at intervals to clean the system.

Continuous Offline

In this method, you will clean individual dust filter cartridges as the filtration process is still on.

It is suitable when you have multiple dust filter cartridges in the system.

Continuous Online

Here, you can clean the dust filter cartridge during the process flow and is typically automatic.

How Does HEPA Filters Compare to Dust Filter Cartridge?

HEPA filters will eliminate contaminants, bacteria, mold, dust, and pollen from the air.

Dust filter cartridges are suitable for removing dust and particulate matter from the air.

What are the Safety Precautions when Operating a Dust Filter Cartridge?

Ensure you install it properly before starting the filtration process.

It is advisable to wear protective gear and masks.

Is it Possible to Clean a Dust Filter Cartridge?

Yes, one can clean a dust filter cartridge after some use to remove dust that accumulates over time.

What Quality Standards Should a Dust Filter Cartridge Conform to?

These will ensure it performs efficiently and is safe for use.

The standards are:

  • Environmental Protection Agency [EPA]
  • CE mark of quality
  • 3-A sanitary standard
  • ISO 9001:2015
  • ASME code
  • Pressure equipment directive 2014/68/EU
  • Food and Drug Administration [FDA]
  • Current Good Manufacturing Practices (cGMP)

What Surface Finishes Are Available for a Dust Filter Cartridge?

Finishes will add an aesthetic appeal and they include:

Barreling

In this method, you will place metal inside a barrel that has abrasives.

The barrel will vibrate making the metals rub against the abrasive products causing the metals to have a shiny appeal to them.

 barrel

barrel

Mechanical and Chemical Planarization

In this method, you will use chemical and mechanical forces that will smooth the surface of metals.

It is somehow a combination of chemical etching and abrasive polishing.

Electropolishing

This is the opposite of electroplating.

It will rekindle the roughness of the valleys and surface.

This happens via an electrochemical process.

Electropolishing, through getting rid of thin layers, eliminates:

  1. Pits
  2. Small cracks
  3. Ingrained contaminants
  4. Burrs
  5. Oxide scales
  6. Additional imperfections

This process is suitable for all kinds of steel material.

Also, it offers 30 times more resistance to corrosion than passivation.

After polishing, the surface will have a durable and appealing bright nature.

Passivation

This method will employ nitric or citric acid to assist in eliminating free iron and extra ferrous impurities.

It will leave behind a resistant and protective layer of oxide that is extremely resistant to corrosion.

Nevertheless, this method is not suitable for stainless steel grades that contain low nickel and chromium levels.

Also, this technique is not suitable for furnishing surfaces that pass welding and brazing.

Thermal Deburring

Here, you will remove burrs that come about during the production process which arise due to milling, drilling, etc.

Pickling

This technique will use a combination of both nitric and hydrofluoric acid.

It will eliminate the low chromium layer of material and high-temperature scales away from the surface of the filter housing.

These chemicals will also assist in eliminating ferrous materials and ferric acid oxide.

When you remove layers of low chromium, you will increase the resistance of the filter to corrosion.

Electroplating

This method will employ electric current to embed another metal material on the surface of the substrate metal.

The advantages of electroplating are:

  1. It will increase the resistance of the material to corrosion
  2. Also, it improves resistance to wear and tear
  3. Besides, it will increase the aesthetic appeal of the material

Abrasive Blasting or Sandblasting

This method will force an abrasive material on the surface of metals.

Fluid on high pressure will propel the blasting material.

This high-pressure force will:

  1. Smooth rough surfaces
  2. Roughen smooth surfaces
  3. Shape the surface of metals
  4. Eliminate the contaminants on the surface

Grinding

This method will eliminate marks and levels and clean the surface of the metal.

Burnishing

In this method, you will rub smooth tools on the surface of metals.

The operator applies ample pressure to improve the finishing and the size of the surface.

Industrial Etching

This is a technique where you use a strong acid to cut metal surfaces.

How Often Should You Replace a Dust Filter Cartridge?

Different dust filter cartridges have different dust holding capacities.

This means small filters have small dust holding capacity than big filters.

Also, the capacity of air you are filtering per unit time will influence the replacement period.

Always measure the differential pressure drop to determine when it is time to replace this system.

For instance, when the differential pressure drop is high, it means you need to replace the dust filter cartridge.

At Filson Filters, we design and manufacture high-quality dust filter cartridges depending on your unique requirements.

Contact us today for all your dust filter cartridge filters.