New patent reinforces Gea’s position in spray dryers
Gea has recently been awarded an sectional patent for its Gea Clean Purge system for food and dairy spray dryers. The patent covers the process of purging feed nozzles while swapping feed systems to ensure continuous feed production to the spray dryer. In practice, this patent grants Gea exclusivity to supply dairy and food spray dryers that tin can operate continuously at the highest level of safety and efficiency with feed line swaps.
Gea Clean Purge is a significant safety and efficiency enhancement given it addresses the primary crusade of fire and explosions in spray dryers while offering significant and valuable production and operational savings to Gea customers. The organization has already delivered significant benefits to Gea customers effectually the world operating loftier performing powder plants.
Swapping feed lines
Food and dairy dryers can operate continuously using multiple feed systems – typically two or more than feed lines upstream of the spray dryer. This is because the feed lines crave regular daily cleaning using a three/four-hour make clean-in-place process to forbid undesired bacterial growth and the gamble of producing off-spec product.
This requires a spray dryer designed for continuous functioning to ensure a smoothen and safe bandy of the concentrate feed lines without interrupting the process. In turn, this requires a cleaning system that tin efficiently purge and atomize the production remaining in the feed lines into the spray dryer to preclude loss of valuable concentrated feed production. The swapping and purging of feedlines is typically fully automatic.
When cleaning or purging the retiring feed organization, it is vital to ensure that whatsoever remaining feed production is pushed out through the spray nozzles and atomized just every bit efficiently equally under normal product; and that the spray nozzles are completely empty later on purging. Failure to accomplish this tin can pb to product failures and increase the potential risk of fire or dust explosions. It is Gea'due south method of achieving this purging effect and feed line swapping, using Gea Clean Purge, that has been awarded this new patent.
Safety hazard
If the retiring spray nozzle lances are not properly emptied earlier being removed manually past the operator, this can atomic number 82 to feed product dripping into the spray dryer chamber or depositing on the spray nozzle positioned in the hot air zone of the air disperser. This is a potentially serious safe take chances and a well-known cause of fires and explosions in food and dairy spray dryers.
Loss of production efficiency
If the feed concentrate is non correctly atomized during the nozzle purge, it will not dry out properly to class powder but will potentially wet the bottom of the spray dryer, leading to increased deposits and fouling and a significant daily loss of valuable powder. The energy consumed to generate the feed upstream of the spray dryer is also lost. Finally, the increased fouling requires more than frequent stops and the use of more water and chemicals.
Patent covering a range of solutions
Both the increased condom chance and the loss of production efficiency is effectively mitigated by Gea Clean Purge. This is the only fully patented solution that significantly reduces condom risks, representing an important step forward for food and dairy powder product. The patent covers a range of solutions for efficient feed line change over. The uniqueness of Gea Clean Purge is its high-force per unit area operation that effectively atomizes the feed during the purge. This means that no feed is lost, fouling of the drying chamber is minimized, and the rubber chance associated with feed changeover is negligible.
Gea Clean Purge is available on all new dairy spray dryers designed for continuous 24/7 product –or for other applications using nozzle lance change 'on the fly.' It can too be easily retrofitted to existing installations.
Plants using Gea Clean Purge will benefit from significantly improved safety, higher yield, reduced water and chemical usage, reduced plant downtime, and higher overall equipment efficiency (OEE). Plant operators will, depending on the application, plant size, and duty, exist able to recover the initial investment rapidly. The reduced risk of fire and explosion, nevertheless, volition be realized immediately.
Source: https://packagingsouthasia.com/type-of-article/industry-news/new-patent-reinforces-geas/
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