It is a very sad day for me at EXAIR… No, I’m not retiring or leaving the company, but today is my last day to write about Plant Engineering Product of the Year Awards …for this year. It has been quite an honor to write about four of our best innovations from the last year over the past weeks. In case you missed the entries, you can click on the these links to read more about our other 2013 award winners: 316 Stainless Steel Dual Cabinet Coolers, 1 Inch Flat Super Air Nozzle or the Heavy Duty HEPA Vac. Today’s post is about the No Drip External Mix Atomizing Nozzle, which the readers of the Plant Engineering magazine bestowed the gold award for fluid handling products. EXAIR’s Liquid Atomizing Nozzles combine the liquid of your choice with compressed air to create a mist of atomized liquid. The external mix nozzles have the highest liquid flow rate of any of EXAIR’s Liquid Atomizing Nozzles with flow rates up to 60 GPH. They are a great solution for applications where independent air and liquid control is required. Additionally, more viscous fluids can be used with the external mixing of the nozzle than either the internal mixing or siphon fed nozzles. External Mixing Nozzles can be used to atomize liquids up to 800 centipoise. In addition to the benefits of the external mix atomizing nozzle, this spray nozzle features a valve to positively stop liquid flow, when the compressed air drops below 30 psig. Any time you need to maintain a smooth finish or are spraying an expensive liquid, the no drip function can be invaluable to preventing rework, and ensuring a quality finish on each and every product. The EXAIR no drip function is patent pending and does not require an additional air line to control the no drip mechanism, simplifying installation and functionality.
This week I worked with a gentleman, who was having a problem cleaning a honeycomb web after a sawing operation. The honeycomb was a paper based material, and the sawing operation would create a large amount of dust. This dust filled his honeycomb, which made the product appear inconsistent to his customer on incoming inspections. This was leading to the customer questioning the quality of the product.
His process featured a blower that was incredibly noisy and still left some material on the product. During the winter, the problem was further exasperated by the dry air, which led to the dust being statically charged and clinging to the honeycomb even more. In spite of his quality and production issues, the customer was looking to expand his production to meet demand. The blower he was using had been custom-made for his machine, so he was open to any ideas. Also, the blower had no way of removing static electricity from the material.
I recommended he use an 84″ Super Ion Air Knife to clean his 80″ honeycomb web. The customer mounted the air knife perpendicular to the surface of the honeycomb 4″ away from the surface. One of my concerns with the operation was creating even flow. To do this on a long span, I recommended he use have the plumbing kit installed at EXAIR, which allows the air knife to create an even flow along the length of the knife y preventing any restrictions which may occur from poorly sized inlet fittings, hose or tube. The Super Ion Air Knife cleaned the honey comb with ease, while maintaining a quiet 69 dBA, and without the expensive maintenance required by the blower.