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Fighting Against the Dust
Dust suppression is an essential process in many industries, including mining, construction, and agriculture. It involves the use of various techniques to control and minimize the amount of dust generated by industrial processes, which can be hazardous to the health of workers and the environment. In this article, we will explore the importance of dust suppression and some of the common techniques used in this process.
The Importance of Dust Suppression
Dust generated by industrial processes can have significant impacts on both the environment and human health. Inhaling dust particles can lead to respiratory problems, such as asthma, bronchitis, and other lung diseases. It can also cause eye and skin irritation, and in severe cases, it can lead to silicosis, a chronic and irreversible lung disease caused by the inhalation of silica dust.
Dust can also have adverse effects on the environment. It can settle on nearby vegetation and reduce its ability to photosynthesize, affecting plant growth and crop yields. Dust can also accumulate in water bodies, leading to reduced water quality and the potential for harm to aquatic life.
To mitigate these impacts, dust suppression is a critical process in many industries. By controlling the amount of dust generated by industrial processes, we can reduce its harmful effects on both the environment and human health.
Techniques for Dust Suppression
There are several techniques used in dust suppression, depending on the specific industrial process and the nature of the dust being generated. Some of the most common techniques include:
- Water Sprays – One of the simplest and most effective methods for dust suppression is the use of water sprays. High-pressure water sprays can be used to wet the dust particles, making them heavier and causing them to settle. This technique is commonly used in mining and construction sites.
- Dust Collectors – Dust collectors are devices that capture and collect dust particles before they can escape into the environment. They work by using filters to trap the dust, and can be used in a variety of industrial processes, such as cement manufacturing and woodworking.
- Chemical Suppressants – Chemical suppressants are compounds that are added to the water used for dust suppression. These compounds can help to reduce the surface tension of the water, making it more effective at wetting the dust particles. They can also help to break down the chemical bonds in the dust particles, making them easier to capture and remove.
- Enclosures and Barriers – Enclosures and barriers can be used to contain the dust generated by industrial processes. This technique is commonly used in manufacturing facilities and can help to prevent the dust from escaping into the environment.
- Ventilation Systems – Ventilation systems can be used to capture and remove dust particles from the air. These systems work by drawing in air from the industrial process and filtering out the dust particles before releasing the clean air back into the environment.
Dust suppression is a critical process in many industries, and it is essential for protecting both the environment and human health. There are several techniques used in dust suppression, and the most appropriate technique will depend on the specific industrial process and the nature of the dust being generated. By implementing effective dust suppression measures, we can minimize the harmful impacts of dust on our health and the environment.
Fighting or suppressing dust during demolition is a booming sector and the number of manufacturers increasing. PDi reports.
They have many names, water cannons, water mist suppression systems, spray cannons, dust suppression systems. Once they were just snow cannons, used for creating snow. But they were adapted and modified and also proved perfect to fight dust and odour outdoors.
How to cope with out door dust
Dust on construction sites has always been a problem. Dust extraction and air cleaning in side buildings has been is use for quite sometime on projects requiring concrete sawing, drilling, floor grinding and polishing, demolition and recycling. There are many manufacturers of these devices for in door use. But dust outside resulting from demolition or recycling activities is also a problem for equipment operators, passers by and residents of adjacent buildings. Then someone came up with the clever idea of adapting traditional snow cannons for use for dust suppression. It is not entirely clear who was the first to come up with this idea. However, there are suggestions in the industry that US manufacturer Dust Control System with their Dustboss were the first, followed by Italian and Swedish companies. During the last five years a number of manufacturers have emerged, such as Dustboss from the US, WLP, DF Ecology, Dust Buster, Techno Alpine and Idrobase from Italy and Duztech from Sweden. Two of the latest entrants to this sector are MB Dustcontrol from the Netherlands and Savic Engineering from Belgium with their brand Spraystream.
Spraystream from Belgium
Savic Engineering manufacturers the Spraystream line of dust suppressors. Spraystream is a spraying machine that produces a mist blanket of micro droplets for dust control in open or enclosed areas. The principle consists in agglomerating the micro droplets with the airborne particles, causing them to precipitate. The Spraystream technology controls dust generated in crushing plants, demolition works, material storage or transhipment of bulk goods, or during spraying in agriculture and horticulture, in an environmentally friendly and efficient manner. It can be used for both indoor and outdoor applications.
The aerodynamically shaped turbine, with wind correction, consists of composite material, which is attached to a galvanised structure. This unit can be attached to all structures with the appropriate adapter. The vertical angle is manually adjustable from -35° to +35°. The unit has a stainless steel nozzle ring. Spraystream comes in five different sizes and are available on a trolley, cart or stationary. Spraysteam also have customised spraying systems. Spraystream products are sold almost all over the world and has distributors all over Europe, the US, Australia and New Zealand.