Dust control solution for fine and ultrafine dust

November 15, 2022

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Fine and ultrafine dust are agents that directly affect human health. The collection of fine and ultrafine dust is also more difficult because they are super small, super light, and easily diffused in the air. Fine and superfine dust is generated from many industries such as papermaking, chemical manufacturing, pharmaceuticals, wood processing… You are having a hard time finding dust control solutions for fine and superfine dust. . Let’s find out in this article right now.

Overview of fine dust and superfine dust

Fine dust and ultrafine dust are types of dust that are microscopic in size and ultrafine. They can float in the air.

Fine dust particles are generated from production processes and operations in factories, industrial parks, and workshops. Typically as:

– Ultra-fine paper dust particles from wood processing, and paper production in a paper factory.

– Pharmaceutical and food dust particles

– Produced during chemical manufacturing

– Dust from the mining process

– Born from the processes of thermal cutting, laser cutting, plasma cutting, fiber optics, polishing, grinding machines, etc.

– Fine dust is generated when burning hydrocarbons or operating machinery or gas engines

With the characteristics of fine, light, and microscopic dust, fine dust is capable of being suspended in the air, persisting in space for a long time. And can mix with the air and stay in the air indefinitely.

According to the US Environmental Protection Agency, EPD classifies fine and ultrafine dust into two main types as follows:

– PM10: are fine dust particles < 10 microns in size

– PM2.5: are ultra-fine dust particles < 2.5 micron

🔰 USEFUL INFORMATION

📣 Factors affecting the cost of dust collection system

📣 Where should the dust extraction system be installed? Indoor or outdoor?

What is the effect of fine, ultra-fine dust?

Fine and ultra-fine dust is a cause of environmental pollution and is extremely toxic to human health. Check out the details below:

Pollution of the environment, affecting plants and animals

Fine and ultra-fine dust can persist in the air for a long time, with a lightweight they are easily moved and widely dispersed in the environment. This causes environmental pollution. Even causing climate change…

Fine dust clinging to trees and plants can prevent the photosynthesis and respiration of plants. Make plants grow poorly.

Similar to animals present in the environment, fine dust can enter the animal’s body, causing them to become infected with bacteria or suffer from health-related problems.

Influence on people

It is impossible to ignore that dust causes direct and serious effects on people.

– Impact on life and activities

Regularly exposed to dust and dirt, which affects human life and activities. Fine dust can stick to the surface of objects, clothes, and everywhere that people can encounter.

– Impact on human health

Fine and ultra-fine dust is an agent that affects human health. They can come into contact with the eyes, ears, nose, and throat… and cause discomfort to people. If people are directly exposed to large amounts of dust, they may have symptoms such as sneezing, rhinitis, eye pain, etc.

In particular, PM2.5 dust, which is microscopic dust particles, can go deep inside the human body through respiration. Fine dust can move to organs such as kidneys, stomach, and lungs … it can be carried everywhere inside the body. This leads to potential dangers to human health such as lung damage, pneumonia, respiratory inflammation, asthma… and even potential causing cancer.

Note the dust collector design for fine and ultra-fine dust

The collection of fine and ultrafine dust presents great challenges, requiring specialized solutions to ensure the efficient collection of this dust.

Here are the elements that help design an effective fine dust collector

Filter selection

Filter selection is one of the important factors for a dust collection system for fine and ultrafine dust. Choosing the right filter will help to effectively collect fine dust and ultrafine dust. For fine, ultra-fine dust particles, cartridge-type dust collectors are often used for maximum efficiency.

Depending on the size of the dust type choose the right filter.

– For PM10 fine dust: Use a filter with a MERV rating of 12 or higher. Filters with a MERV 12 rating achieve 90% efficiency with particles between 3 – 10 micrometers, and an efficiency of 80 – 89.9% with particles less than 3 micrometers in size.

– For PM2.5 dust, use the MERV 14 filter. Achieve > 90% efficiency for dust particles with sizes from 1 – 3 micrometers, and reach 75-84% with ultrafine particles less than 1 micrometer.

– With ultra-fine dust particles from 0.3 – 1 micrometer using a filter with MERV 16, efficiency > 75% can be achieved.

Rear filter

The following filter is used after the dust filtration process at the cartridge filter to ensure thorough cleaning of the amount of dirt. Often used for environments that require clean room conditions such as food processing, pharmaceutical production, etc.

Using activated carbon after-filter to collect the gas, mist, etc. Activated carbon can be impregnated with other substances to create reactions with the dusty gas stream, increasing the ability to absorb and retain dust. residual dirt.

Fire safety

Many fine or ultrafine dust is flammable, explosive, or flammable. For example, road dust, starch dust, soot, fine plastic, or welding fumes…

When collecting combustible dust, it is necessary to have a dust collection system equipped with safety and explosion-proof features. Eg:

– Equipped with an isolating valve to prevent the pressure wave from traveling back to the facility and causing a dangerous secondary explosion

– Equipped with a rotary airlock between the collector and the collection tank or hopper. Helps prevent dust in the hopper from escaping back into the dust collection chamber.

– Equipped with explosion-proof vent panels

– Equipped with fireproof doors…

Filter protection

Fine and ultrafine dust can accumulate and adhere deeply to the filter media. They make it difficult to get out.

– Vertical filter: Use a vertical filter type that orients the dust vertically, making it easier for the dust to fall out of the filter media and into the dust collection bin.

– Pulse system: The pulse system makes it easier to remove dirt. Helps protect the filter to last longer, prolonging its life.

Design the most efficient fine and ultrafine dust collection system

A fine and ultrafine dust collection system consists of basic equipment such as:

– Industrial exhaust fans

– Conduit system

– Capturing suction

– Cover

– Ventilation system

– Dust filter

– …

To design an effective dust collection system, it is necessary to survey the actual work. So if you need to design an effective dust collection system, please contact the units specializing in the design of industrial dust collection systems for advice.

Above is some information about solutions to collect fine dust and superfine dust. Hope the above information is useful for readers.

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