Spray booth systems are generally classified according to their airflow mechanisms, however, another essential characteristic feature which differentiates the types of spray booths are their filtration systems. These two types are namely wet and dry spray booths which accordingly use water based filtration mechanism and dry mechanism. While both these types have their own set of advantages and disadvantages, here you will come across an overview of both the types of spray booths.
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Wet Spray Booths
When spraying is done, a certain portion of the spray happens to be over the brim. This overspray in case of wet filtration spray booths is collected inside a tank. The water spray seeps inside a particular scrubber or curtain, which is a part of the washer of the system. It is at the bottom of the collection tank. After repeated accumulation of overspray a paint sludge forms within the collection tank which requires essential cleaning to ensure the best performance of the spray booth system. Custom designed wet spray booths come with a wide range of sludge removal systems.
Wet spray booths are generally used for industrial purposes where the requirement is of high end paint volumes. When the prerequisite is of high paint volumes you require consistent air flow mechanism and uniformity and great finish as well. Even more, the filters do not need to be changed every now and then. Since it is an automated system, it does not need to be manually operated. Here are the benefits of wet spray booth:
- Suitable for high end industrial usage
- Custom design solutions readily available with different sludge removal mechanisms
- Can be used for many applications
- Systematic and clean process of collection
When water and the spray particles are mixed through an ionization process, a separation of compound takes place. Owing to this process the spray particles float on the surface of the water or sink down and form a layer of sludge. If this sludge is not cleared routinely, it can hamper the operational efficiency of the spray booth. You either need to remove the sludge from below by shoveling or skim it from the surface. This sludge that is formed is extremely hazardous for health as well.
Dry Spray Booth
In a dry spray filter booth, there are multiple layered filters which filters the air and all the spray particles in it. Instead of water, here filtration layers of different materials are used to keep the system dry. The layers are essentially perforated so that air can pass and only the spray particles get obstructed.
The material of the layer media is chosen according to the volume of spray performed and application as well. You can ask for the best recommendations from the manufacturer for your requirement.
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Advantages of Dry Filters
Dry spray filtration is the apt spray booth type if your requirements happen to be fluctuating and multi dimensional, that is the system is required to be used for different applications. If you are seeking for a budget spray booth system, then between wet and dry spray booths dry booths have lower operational and maintenance cost. Even more, the installation and filter maintenance costs are also low. The operational ease makes it a popular choice.
Thus, when you are determining your spray booth requirement, you essentially need to consider:
- the volume of application,
- bulk production or small scale production is required,
- the cost involved in installation to maintenance,
- Maintenance and operational ease, etc.
Therefore, once you have a straight line of thought about your requirements, you can even get a custom designed spray booth with different filtration system, sludge removal mechanism, the capacity of performance, etc accordingly.
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