In the finishing industry, there exists a real connection between safety and quality-especially with regards to spray booths, which can run the risk of causing fire if not properly maintained. Equipment for dust collection is strategically designed to meet specific needs in terms of performance, such as airflow velocity; fan, filter and burner capacity; and safety related to fire prevention and operator wellbeing.
However, when the manufacturer ships the gear, installation, operator training and maintenance become the responsibility in the finisher. Therefore, it is best to give both the Automotive Paint Booths and associated processes a comprehensive review for fire safety hazards and other incidents which could occur.
Dust Collection – The two main sides of dust collection: quality and safety. An exceptional finish is definitely the direct reaction to adequate elimination of airborne particles that could contaminate finished surfaces. This contamination causes rejects or rework of item that leads to lost profits.
It’s not just surface finish that particle build-up can affect, though. Otherwise cleaned, particles can migrate to places that operators might not have proper breathing protection, and fire gets to be a real hazard. Sufficient airflow is vital.
The best causes of fire in dust collection systems include: static electricity discharge, exothermic reaction as a result of chemical reaction of collected dust,
cutting or welding too close to the area.
The end result is to collect the dust using a well-designed dust collection system that incorporates a smart layout and balanced air replacement. As suggested through the National Fire Prevention Association (NFPA): “Air flow needs 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 may be recycled back into the facility. Fresh air dilution ratios for a facility also need to consider heat, off-gases, and odors from ancillary processes including sanding or grinding.
Furthermore, doors or pressurized plenums could be used to contain dust. A smart investment in containment is going to be reflected in less money invested in cleaning and correcting finish rejects.
Spray Finishing Systems and Booths – Truck Paint Booth For Sale have a number of their particular specific requirements for safety and quality. First, sufficient and laminar airflow is needed in order that the exhaust can capture overspray and pull it to the filtration systems, which may be either a dry filter or perhaps a water wash. To eliminate particulate from your air, the proper filter media or chamber is vital. Then, the new air supply needs to be not only clean, but in addition at the correct temperature. Modern-day coatings might also require humidity control. And of course, all equipment has to be properly grounded.
The best fire prevention may start with understanding of what can result in a fire in a spray booth. In a conventional system, leading causes of fire include:
using spark-producing equipment including cutting, welding or grinding near the spray area; friction, generally brought on 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, main reasons for fire include: ungrounded or improperly grounded objects in the spray area, failure to totally discharge equipment before cleaning, pinhole leaks within the paint tubing to the spray gun, other causes much like conventional systems including smoking, cutting and welding.
All of these circumstances are entirely preventable, and a number of them connect with maintenance inside the spray booth, a concern called out in Chapter 10 from the NFPA 33: Standard for Spray Application Using Flammable or Combustible Materials. The section covers general maintenance requirements, removal of combustible deposits, maintaining high-pressure hoses, waste containers, clothing and cleaning operations amongst other very good information.
When spray booths and finishing equipment are installed, they meet the criteria for a quality job the 1st time through. It’s up to the store to maintain the system clean so that it meets that perfect, first-time performance each and every time. The system should allow for: proper airflow to obtain overspray in to the filters as opposed to on the booth floor, and proper filtration to keep contaminants from the air but additionally to stop overspray buildup on the fan or even in the exhaust duct.
For excellent prevention standards, keep Coating Spray Booth, change the booth filters regularly, look into the fan and stack for buildup, guard against static electricity and study the NFPA 33.
Paint Curing or Drying Ovens – Infrared and convection ovens employed for paint curing or drying are another obvious fire hazard in the shop. Again, the best recommendation would be to always keep the location neat and provide adequate intake air. Remove combustible deposits, and to eliminate the chance of spontaneous combustion, make sure you possess the correct exhaust volume and purge time. Keep solvent load inside the oven below the “Lower Flammability Level,” and purge the oven before startup.
The same things to consider for airborne contaminants ought 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 of the oven to minimize stirring or tracking in dirt. Intake and mkmozc filters are available in many temperature ranges to suit any process.
Ovens, when employed for whatever they are designed 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 each time a convection oven is used for other means, like to evaporate solvents through 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