1.1 Shot blasting processes can generate large amounts of airborne dust and fine particles that need to be effectively captured and separated from the exhaust air.

1.2 When shot blasting aluminum, magnesium, titanium, or other materials that may generate combustible metal dust, special attention must be given to potential fire and explosion hazards.

1.3 High-speed blasting media impacting the workpiece may generate heat, sparks, and fine combustible particles. The characteristics of the workpiece material and generated dust should therefore be evaluated before selecting the dust collection system.

1.4 For combustible metal dust applications, the dust collection system and associated safety measures should be selected according to the properties of the dust, the process conditions, and applicable local safety requirements.

1.5 Certain reactive metal dusts, including some aluminum, magnesium, and titanium dusts, may react with water or moisture and generate hydrogen. When a wet dust collector is considered for these applications, the system must be specifically designed for the characteristics of the metal dust, with appropriate measures to prevent the accumulation of hydrogen.

1.6 Wet dust collection can be an effective solution for certain combustible metal dust applications because the particles are captured and separated in a liquid. However, equipment selection must be based on the specific metal or alloy, dust characteristics, process conditions, and applicable safety requirements.

1.7 The wet dust collector can be equipped with a chain scraper to continuously remove settled material from the water tank and discharge it into a collection container. An automatic water level control system can also be provided to maintain the required operating water level.

1.8 Where higher final filtration efficiency is required, additional downstream filtration stages can be considered according to the characteristics of the exhaust air and the required emission level. The final system configuration should be selected based on the actual process conditions and local emission requirements.