Blog


23

2016

07

Several methods and principles for treating paint mist exhaust gases used in Qiangxin Spray Booth's electrostatic painting rooms in Guangzhou city


Guangzhou Qiangxin Spray Booth Electromechanical Co., Ltd. specializes in the professional production of various spray booths, baking rooms, and sheet metal painting facilities. We are dedicated to providing tailored equipment solutions for industries such as machinery, environmental protection, and dust removal. Qiangxin Spray Booth's products primarily utilize two main treatment methods: dry filtration (commonly using activated carbon) and water curtain systems. Below is a brief introduction to how our equipment handles paint mist and exhaust gases: 1. Dry Spray Booth Qiangxin Spray Booth’s dry spray booth features a simple yet efficient design, ensuring uniform airflow and consistent air pressure. This results in minimal paint waste and high coating efficiency. Since no water is used, there’s no need for wastewater treatment, significantly reducing operational costs. The dry spray booth is widely recognized internationally as one of the most technologically advanced options available today. It addresses the shortcomings of older-style spray booths—such as severe contamination in the work area, poor paint mist handling, safety concerns, unstable performance, and failure to meet modern environmental standards. Key advantages include cutting-edge design, a rational structure, an aesthetically pleasing appearance, superior paint mist removal efficiency, stable performance, enhanced safety, robust structural integrity, and even lighting without shadows. 2. Water Curtain Spray Booth The Qiangxin Spray Booth water curtain spray booth is a wet-process system equipped with a water curtain panel at the front, an overflow trough above it, and multi-stage water curtain filters positioned behind the panel. During painting, incoming paint mist first comes into contact with the water curtain, where it is effectively washed into the collection tank. Any remaining paint mist is then completely trapped within the water as it passes through the multi-stage water curtain filters. The water from the collection tank is pumped back up to the overflow trough atop the water curtain panel and multi-stage filters, creating a continuous flow that forms the water curtain. Inside the booth, stainless steel water curtain panels are employed, featuring an advanced and well-designed structure that ensures optimal air circulation velocity. This not only boosts the paint application rate and enhances the capture of residual paint but also maintains a uniform, uninterrupted water curtain free from splashing or droplets. Additionally, the booth incorporates a vortex device along with adjustable gas-water separation baffles, allowing for easy assembly and disassembly. These features facilitate thorough separation of residual paint particles from the water, ensuring a cleaner environment while simplifying the efficient removal and disposal of paint sludge. This design makes maintenance exceptionally convenient and reliable. The water curtain spray booth consists of key components including the booth body, water tank, stainless steel water curtain panels, a water circulation system, and an exhaust filtration system. While performing standard painting tasks, this system effectively prevents waste paint from escaping and polluting the surrounding environment. **Working Principle of the Water Curtain Spray Booth:** Workpieces are either conveyed into the spray booth via a suspended conveyor system or placed manually onto a rotating workbench. Operators then use handheld electrostatic spray guns or fixed rotary cup spray guns to apply paint evenly across the surfaces. When using electrostatic spray guns, the paint mist is efficiently captured and drawn toward the water curtain for purification. After passing through the water curtain, the mist undergoes further cleaning via a spray rinse process before being directed through a gas-water separation unit. Finally, the purified air is safely discharged outdoors. Meanwhile, the paint mist collected by the water curtain flows downward into a holding tank, where it is filtered again by a pump system. Any residual paint particles rise to the surface of the water, forming loose clumps that can be easily scooped out and disposed of separately, ensuring clean water circulation throughout the process. **Applications of the Water Curtain Spray Booth:** This system is ideal for single-sided painting applications and can also be configured in multi-unit setups to enable double-sided painting operations. **Scope of Application:** The water curtain spray booth is perfectly suited for painting workpieces across various industries, including machinery, automotive parts, metal products, decorative components, household appliances, and furniture manufacturing. Guangzhou Qiangxin Spray Booth Electromechanical Co., Ltd. specializes in producing a wide range of baking rooms, spray and bake systems, and related accessories. We also offer comprehensive repair and maintenance equipment for automobiles. We warmly welcome customers to visit and explore our facilities! Our service philosophy is clear: "Quality speaks louder than words!" We remain committed to staying ahead of industry trends, working together to build a brighter future. Our business principles are rooted in unwavering commitment to quality, guided by technological innovation, underpinned by reliability, and driven by exceptional customer service.