Within the finishing industry, there exists a real connection between safety and quality-especially in terms of spray booths, which can run the potential risk of causing fire if not properly maintained. Equipment for dust collection is strategically created to meet specific needs with regards to performance, like airflow velocity; fan, filter and burner capacity; and safety pertaining to fire prevention and operator wellbeing.
However, when the manufacturer ships the equipment, installation, operator training and maintenance end up being the responsibility from the finisher. Therefore, it is best to give both Popular Model Automotive Paint Booth and associated processes a comprehensive review for fire safety hazards and other incidents that could occur.
Dust Collection – The two main sides of dust collection: quality and safety. A high quality finish is definitely the direct reaction to adequate elimination of airborne particles which could contaminate finished surfaces. This contamination causes rejects or rework of product which brings about lost profits.
It’s not just surface finish that particle build-up could affect, though. If not cleaned, particles can migrate to locations where operators might not have proper breathing protection, and fire becomes a real hazard. Sufficient airflow is essential.
The very best factors behind fire in dust collection systems include: static electricity discharge, exothermic reaction because of chemical reaction of collected dust,
cutting or welding too close to the area.
The end result is to accumulate the dust with a well-designed dust collection system that incorporates a smart layout and balanced air replacement. As suggested by the National Fire Prevention Association (NFPA): “Air flow has to be carefully considered.” Criteria for dust collection processes usually include air velocity inside the booth of 125 to 150 FPM. If properly filtered, this air can be recycled back into the facility. Fresh air dilution ratios for a facility also have to consider heat, off-gases, and odors from ancillary processes including sanding or grinding.
Additionally, doors or pressurized plenums can be used to contain dust. A good investment in containment will be reflected in less money spent on cleaning and correcting finish rejects.
Spray Finishing Systems and Booths – High Pressure Spray Paint Machine have a number of their very own specific requirements for safety and quality. First, sufficient and laminar airflow is needed so that the exhaust can capture overspray and pull it to the filtration systems, which is often either a dry filter or a water wash. To eliminate particulate from the air, the proper filter media or chamber is essential. Then, the fresh air supply must be not only clean, but in addition in the correct temperature. More sophisticated coatings could also require humidity control. And of course, all equipment must be properly grounded.
The most effective fire prevention may start with knowledge of exactly what can cause a fire in a spray booth. In a conventional system, leading causes of fire include:
using spark-producing equipment including cutting, welding or grinding nearby the spray area; friction, in most cases caused by overheated bearings on the exhaust fan, or by rubbing of exhaust fan blades against overspray deposits on the wall in the duct; arcing electrical equipment;
spontaneous combustion; and discharge of static electricity.
In electrostatic spray operations, leading causes of fire include: ungrounded or improperly grounded objects within the spray area, failure to totally discharge equipment before cleaning, pinhole leaks within the paint tubing for the spray gun, other causes much like conventional systems including smoking, cutting and welding.
Most of these circumstances are entirely preventable, and a number of them connect with maintenance in the spray booth, an issue called out in Chapter 10 in the NFPA 33: Standard for Spray Application Using Flammable or Combustible Materials. The section covers general maintenance requirements, removing of combustible deposits, maintaining high-pressure hoses, waste containers, clothing and cleaning operations amongst other excellent information.
When spray booths and finishing equipment are installed, they satisfy the criteria to get a quality job the 1st time through. It’s up to the shop to help keep the program clean so it meets that perfect, first-time performance each time. The device should allow for: proper airflow to obtain overspray to the filters as opposed to on the booth floor, and proper filtration to maintain contaminants out of the air but in addition to prevent overspray buildup on the fan or in the exhaust duct.
For excellent prevention standards, keep Alloy Wheels For Sale, change the booth filters regularly, look at the fan and stack for buildup, guard against static electricity and browse the NFPA 33.
Paint Curing or Drying Ovens – Infrared and convection ovens employed for paint curing or drying are another obvious fire hazard within the shop. Again, the best recommendation is always to keep the location neat and provide adequate intake air. Remove combustible deposits, and also to eliminate the risk of spontaneous combustion, ensure you have the correct exhaust volume and purge time. Keep solvent load in the oven below the “Lower Flammability Level,” and purge the oven before startup.
Exactly the same things to consider for airborne contaminants needs to be applied to oven maintenance. Filtered recirculating air or filtered air seals may be critical, and both should be thought about.
Airflow for ovens should have sufficient exhaust to evacuate solvent vapors and smoke. Also, analyze product conveyance and design the airflow from the oven to reduce stirring or tracking in dirt. Intake and mkmozc filters are available in many temperature ranges to suit any process.
Ovens, when utilized for whatever they are created are for, really are a safe operation as many solvents are evaporated and other airborne contaminants and combustible deposits shouldn’t be present. It’s really dangerous when a convection oven can be used for other means, including to evaporate solvents by the drum-load, harden booth filters or ‘treat’ other waste deposits.
SD Longxiang with a professional team for designing and manufacturing spray booth, we try to support the products and service packages for every customer with their customized request, we are not only supply the products, we supply are designer for your painting and spraying works, we supply the solution that helps you work smarter, save time and money and achieve outstanding results, now and in the future.
Shandong Longxiang Machinery Co., Ltd.
Address: Longyao Industrial Park, Xinzhai Township, Zhangqiu district, Jinan city, Shandong, China
E-mail: [email protected]