CONTACT US
Dust Suppression Spray technology
Fire protection
Pollution control
Wet screening
Foam control and more
We offer a complete range of:
Spray solutions
- Spray nozzles
- Strainers and filtration
- Spray bars and headers
- High pressure pumps
- Automated spray controllers
Decades of experience with wet dust suppression systems in a wide range of industries.
A nation wide sales force dedicated to spray technology.
A strong commitment to sustainability and improving the environment.
One of the leading dust suppression companies in South Africa.
Spray Technology for Dust Suppression South Africa
Spray technology plays an integral role in improving the safety and efficiency of mining operations in South Africa. When considering spray technology as your dust suppression solution, you must first consider whether you are aiming for dust prevention or dust suppression.
These are the key considerations for dust prevention/suppression:
• What process and material are generating the dust?
• Where is the dust being generated?
Dust Prevention
What material are you adding moisture to?
It is important to understand exactly how much moisture to add as different materials will respond to moisture in different ways. Too little moisture means you’ll still have a dust problem. Too much moisture and the integrity of the material may be compromised, and cause quality issues. For example, if you have a limit of 6% allowable moisture in the ore, the maximum amount of water per ton is 60 liters.
You still need to factor incoming moisture content and evaporation. To get the balance correct Spraying Systems does a complete calculation for an optimal operational spray system. Poorly designed systems quickly result in excess water usage that will result in conveyor carry back issues, chute blockages, belt slippage and tracking issues, increased plant clean ups and excess moisture content when loading onto ships.
What is dust prevention?
Dust prevention refers to the principle of adding water to ore to control the problem at the source and prevent dust particles from becoming airborne. When the particle absorbs water, it increases the mass and weighs the particle down.
When applied correctly, this is a practical & straightforward application that provides a long-term solution that can be easily managed with regular maintenance.
How should water be used for dust control in South Africa?
It is important to understand exactly how much moisture to add as different materials will respond to moisture in different ways. Too little moisture means you’ll still have a dust problem. Too much moisture and the integrity of the material may be compromised, and cause quality issues. For example, if you have a limit of 6% allowable moisture in the ore, the maximum amount of water per ton is 60 liters.
You still need to factor incoming moisture content and evaporation. To get the balance correct Spraying Systems does a complete calculation for an optimal operational spray system. Poorly designed systems quickly result in excess water usage that will result in conveyor carry back issues, chute blockages, belt slippage and tracking issues, increased plant clean ups and excess moisture content when loading onto ships.
When to use chemicals for dust prevention?
The type of material will determine whether chemicals should be added to the water to improve suppression and/or lower overall application costs. Coal, for example, can repel water and in some cases requires the use of chemical additives to increase absorption. Also, consider the processing stage. Most particles created during breakage are not released into the air. The dust stays attached to the surface of the broken material.
Adequate wetting is critical to ensure dust stays attached. Keep in mind that partially processed minerals and coal may be more sensitive to moisture than unprocessed material.
How dust control spray applies to stationery or moving material?
Drop size, spray angle, and capacity output can affect surface coverage when spraying stationary material, while drop size and drop velocity
affect coverage when spraying moving material. These factors must be considered when selecting and positioning spray nozzles.
Dust Suppression
What is the ore particle size?
Dust capture is most effective when dust particles merge with water drops of equivalent size. Drops that are too large won’t collide with
the smaller dust particles and drops that are too small evaporate too quickly and release the captured dust particles. Understanding the particle size of the dust is critical to effectively designing a suppression system.
What is dust suppression on mines?
Dust Suppression refers to the principle of controlling already airborne particles and can be done alone or in support of dust prevention. Creating the correct droplet size is critical to success as it must be of equal size to the particles to merge and increase mass.
This causes the particle to return to its material source or the ground
How to design a dust suppression system?
Dust capture is most effective when dust particles merge with water drops of equivalent size. Drops that are too large won’t collide with
the smaller dust particles and drops that are too small evaporate too quickly and release the captured dust particles. Understanding the particle size of the dust is critical to effectively designing a suppression system.