In the finishing industry, you will find a real connection between safety and quality-especially with regards to spray booths, which can run the potential risk of causing fire if not properly maintained. Equipment for dust collection is strategically made to meet specific needs when it comes to performance, such as airflow velocity; fan, filter and burner capacity; and safety pertaining to fire prevention and operator wellbeing.
However, once the manufacturer ships the gear, installation, operator training and maintenance become the responsibility in the finisher. Therefore, it is recommended to give both the Furniture Spray Bake Paint Booth and associated processes a complete review for fire safety hazards and other incidents that could occur.
Dust Collection – There are two sides of dust collection: quality and safety. A top quality finish is definitely the direct consequence of adequate removing of airborne particles that may contaminate finished surfaces. This contamination causes rejects or rework of product that brings about lost profits.
It’s not simply surface finish that particle build-up can impact, though. If not cleaned, particles can migrate to places that operators might not have proper breathing protection, and fire turns into a real hazard. Sufficient airflow is essential.
The top causes of fire in dust collection systems include: static electricity discharge, exothermic reaction due to chemical reaction of collected dust,
cutting or welding too near to the area.
The end result is to gather the dust having a well-designed dust collection system that contains a smart layout and balanced air replacement. As suggested by the National Fire Prevention Association (NFPA): “Air flow must be carefully considered.” Criteria for dust collection processes usually include air velocity within the booth of 125 to 150 FPM. If properly filtered, this air may be recycled into the facility. Fresh air dilution ratios for a facility should also consider heat, off-gases, and odors from ancillary processes such as sanding or grinding.
Additionally, doors or pressurized plenums can be used to contain dust. A good investment in containment is going to be reflected in less money invested in cleaning and correcting finish rejects.
Spray Finishing Systems and Booths – Open Face Dry Filter Paint Booth have several their particular specific requirements for safety and quality. First, sufficient and laminar airflow is required so the exhaust can capture overspray and pull it towards the filtration systems, which is often either a dry filter or a water wash. To remove particulate through the air, the correct filter media or chamber is essential. Then, the fresh air supply has to be not merely clean, but in addition in the correct temperature. Modern-day coatings could also require humidity control. And naturally, all equipment has to be properly grounded.
The best fire prevention may begin with comprehension of so what can cause a fire in a spray booth. In a conventional system, main reasons for fire include:
using spark-producing equipment including cutting, welding or grinding nearby the spray area; friction, in most cases due to overheated bearings on the exhaust fan, or by rubbing of exhaust fan blades against overspray deposits on the wall from 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 inside the spray area, failure to totally discharge equipment before cleaning, pinhole leaks in the paint tubing to the spray gun, other causes much like conventional systems such as smoking, cutting and welding.
Most of these situations are entirely preventable, and some of them relate with maintenance inside the spray booth, an issue called in Chapter 10 from the NFPA 33: Standard for Spray Application Using Flammable or Combustible Materials. The section covers general maintenance requirements, elimination 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 fulfill the criteria for any quality job the first time through. It’s up to the shop to keep the system clean so that it meets that perfect, first-time performance each time. The program should allow for: proper airflow to have overspray to the filters rather than on the booth floor, and proper filtration to keep contaminants from the air but additionally to prevent overspray buildup on the fan or even in the exhaust duct.
For excellent prevention standards, keep Car Spray Booth Line, change the booth filters regularly, check the fan and stack for buildup, guard against static electricity and read the NFPA 33.
Paint Curing or Drying Ovens – Infrared and convection ovens utilized for paint curing or drying are another obvious fire hazard within the shop. Again, the best recommendation is to remember to keep the area neat and provide adequate intake air. Remove combustible deposits, and to eliminate the potential risk of spontaneous combustion, ensure 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.
Exactly the same things to consider for airborne contaminants should be put on oven maintenance. Filtered recirculating air or filtered air seals could be critical, and both is highly recommended.
Airflow for ovens needs to have sufficient exhaust to evacuate solvent vapors and smoke. Also, analyze product conveyance and design the airflow of the oven to lower stirring or tracking in dirt. Intake and mkmozc filters can be found in many temperature ranges to fit any process.
Ovens, when used for what they are made are for, are a very safe operation since many solvents are evaporated as well as other airborne contaminants and combustible deposits shouldn’t be present. It’s really dangerous when a convection oven is used for other means, including to evaporate solvents from 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