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Pump buy return on funding may be measured in days
By Mike Libbey, Area Sales Manager CIRCOR and Bob Limper, Business Development Manager CIRCOR
A world producer of scented plastic garbage baggage was looking for an various choice to the use of pre-scented plastic pellets. A serendipitous encounter at a tradeshow led them to a precision gear metering pump resolution that gave them accuracy and consistency at the low circulate charges required, whereas additionally reducing their prices and enhancing worker health. Yearly savings are so high that the return on funding for the pump system can be measured in days.
Seeking an alternative for pricey pre-scented plastic pellets
A global manufacturer of scented plastic garbage bags was looking for an alternative to using pre-scented plastic pellets, which required a devoted silo for each of the 20 obtainable fragrances. The pellets are pneumatically conveyed to each silo from both tanker trucks or rail automobiles and the manufacturer was experiencing logistical issues associated with keeping the silos filled. They also needed to carry high prices for maintaining the inventory of the pre-scented pellets.
In addition, the heavily concentrated scents had been causing well being considerations for the employees who complained of headaches. To mitigate this problem, every extruder line was fitted with a vacuum exhaust hood to expel the fumes to the outdoors. On occasion, these emissions led to complaints from neighbors and citations from the United States Environmental Protection Agency.
The company was in search of a means to make use of plain plastic pellets and apply scented oil directly to the plastic sheet immediately after the extrusion process to scale back costs, logistical challenges, and vitality use. They had tried to build such a system in-house but had struggled to realize accuracy and consistency on the low circulate rates they required. They decided to seek a pump-based answer that would directly spray fragrance on the good and cozy melted sheet plastic as a outcome of the in-house answer couldn’t meet rigorous high quality control standards requiring the spray-on scent to precisely match that of pre-scented pellets.
Finding pressure gauge trerice ราคา on a tradeshow ground
Design engineers from the plastic bag producer attending the PackExpo show noticed a working demonstration of precision gear metering pumps made by Zenith and asked application specialists if the pumps may be a fit with their software. After collecting info on the application, an area manager for the pump manufacturer with intensive experience in dosing and blending methods visited the plant to get a firsthand view of present operations and gather further info.
Working with the pump manufacturer’s design group they developed a system answer utilizing a Zenith B-9000 Series rotary positive displacement pump specifically designed for single stream chemical obligation applications. The pump options an accurate, repeatable, pulse free circulate in a compact design ideal for dosing additives such as colors, flavors, and fragrances.
This kind of pump is outlined as rotary as a end result of the drive shaft is rotated as compared to different kinds of pumps utilizing a reciprocating motion and can be thought of to be a constructive displacement sort because the displaced volume is constant and doesn’t range.
Pumping motion is achieved by filling the gear enamel areas and transporting the fluid across the outer diameter of the gears. When the gear enamel mesh, the fluid is displaced and forced to the outlet aspect of the pump. The move price can only be adjusted by growing or lowering the speed at which the shaft is rotated. The pump chosen presents precision grinding and lapping processes that result in a precision metering instrument, producing exact, pulse-less, and repeatable fluid circulate.
The pumps supply extremely tight working clearances to minimize fluid slip. Manufacturing tolerances on many parts are to +/- 50 millionths of inch with floor finishes as clean as four micro inches or better. The pumps are offered with an AC “closed loop” motor pace controller to maintain 0.1 % pump speed accuracy.
The Zenith 9000 sequence pump is out there in 11 sizes with capacities starting from .003 to 300 GPH. Wetted parts are available in via hardened 440C sequence stainless steel, specialty treated 316 stainless steel, and prime quality device steels similar to D2, M2, M4 and CPM-M4 to provide good corrosion and abrasion resistance.
The bag producer selected a model with a magnetic drive (mag-drive) sealing choice, which may get rid of shaft leakage of fluids, increasing plant security and reducing risky organic compound emissions. The use of a magnetic coupling additionally eliminates downtime due to mechanical seal failures and eliminates the need for buffer fluids.
New solution reduces costs and presents uniform fragrance distribution
The new Zenith pump system gave the scented bag manufacturer a continuous, pulse free process, which guarantees equal and uniform perfume distribution. By adding the scent directly to the bags after leaving the extruder, the plastic bag manufacturer not solely eradicated the necessity to have separate pellet silos for every scent, but also eliminated the necessity to vent the fumes that come from the pellets as they journey from the silos to the extruders.
The manufacturer purchased the first system and after profitable trials, ordered six extra methods. Over the past two years they have purchased greater than 30 methods, with plans to order more. The producer is also interested in having Zenith conduct annual field calibrations of every system.
After two years of operation, the manufacturer estimates a yearly financial savings of approximately $480,000 per skid in operation. With 30 skids now operating, the return on funding for every system purchase may be measured in weeks. To date, there have been no odor complaints because the buyer put in the Zenith methods