What Is a Blow Gun?
A blow gun is used when a powerful burst of air is required to remove dust and clean an area. They are commonly found in many factories and laboratories and are frequently utilized.
In most cases, compressed air is used as the gas source, which is easily produced. However, it can also be connected to a nitrogen cylinder for high-pressure nitrogen applications. It’s essential to note that nitrogen and argon do not contain oxygen, posing a risk of asphyxiation when used continuously in enclosed spaces. Therefore, they must be used with proper ventilation for safety.
Uses of Blow Guns
Blowguns are primarily employed for removing dust, sand, wood chips, lint, and other debris from tables, products, and surfaces to clean them effectively.
They also find utility in collecting small parts or sand from barrels, as it is more efficient to blow and collect them using blow guns rather than sweeping with a broom. Additionally, the forceful airflow is highly effective for rapidly cooling hot objects, making them useful for quick cooling of forged products, cast products, and after welding.
Principle of Blow Guns
Blowguns operate by releasing compressed gas, which must be compressed beforehand. Compressed air may be readily available in factories or laboratories, allowing easy connection. In cases where compressed air is not available, it must be prepared separately, typically by connecting to a cylinder or an air compressor. The high-pressure air produced by the compressor is regulated to the desired pressure using a regulator and then connected to the blow gun via a tube.
The release of compressed air is controlled by pulling the trigger attached to the blow gun. The flow rate can be adjusted by manipulating the trigger, allowing for precise control on a case-by-case basis. If the airflow is too vigorous, it can be further adjusted using a regulator installed upstream.
To prevent surface damage when blowing, the tip of the blow gun may be equipped with a rubber tip or a similar device to avoid scratching equipment.