The Swiss subsidiary of Dutch company DSM Nutritional Products AG uses the spray drying method when producing vitamin and carotenoid powders for the pharmaceutical and meals industries. The procedure uses pump expertise to convey numerous emulsions into a twig tower, the place they’re dried into powder. But the feed and booster pump that was getting used proved to be an uncertainty issue as a result of the diaphragm required for the pumping course of tended to tear when the pump was started up. Generally, such production interruptions can be corrected by way of quick maintenance and restore work.
However, it is very expensive to switch a diaphragm or a whole system. DSM was in search of an alternative and finally made a find when they talked to the pump specialists at Lewa Nikkiso Switzerland, who really helpful a Lewa triplex process diaphragm pump for the spray tower utility. The drive unit includes a safe start-up mode that keeps the diaphragm positioned in the neutral place, and steady regulation utilizing an integrated monitoring system. Since the hermetically tight pumps are electropolished and CIP-approved, it’s simple to meet the food industry’s stringent hygienic provisions.
“Pump know-how plays a central position in drying oil-in-water emulsions for the food and pharmaceutical industries. These emulsions include substances such as nutritional vitamins, carotenoids, or polyunsaturated fatty acids as active elements,” explains Natalie Ibald, plant manager of formulations at DSM Nutritional Products AG. “As part of the process chain, each pump is 100 percent built-in into the closed plant system. The pumps are used for conveying the mixtures into the spray tower.”
With เกจวัดน้ำยาแอร์refco , the chance of unexpected interruptions to this course of couldn’t be dominated out. As a result, the totally different emulsions couldn’t be processed further. In different words, it was not attainable to dry them into powder. The pump diaphragm was the reason: it was usually too delicate to resist the stress placed on it when starting up the pump and would rupture. Replacing the diaphragm lowered the system’s service life and generally meant that trouble-free operation couldn’t be assured.
In the course of searching for a dependable alternative, DSM obtained in touch with the Swiss subsidiary of pump manufacturer Lewa.
“We had been already conversant in Lewa Nikkiso Switzerland as a provider of sturdy systems with lengthy service lives within the SFP sector. To ensure trouble-free spray drying, we thought it will be sensible to join forces with the specialists from Lewa and give you a design to solve the technical problems,” says Ibald.
DSM is committed to continually improving its processes and investing in expertise. This dedication, together with prior experience with the short service lives of the earlier pumps, led DSM to put particular give consideration to dependable perform and a robust design during the challenge planning phase. The listing of requirements also included a substantial number of stringent hygienic provisions that had to be fulfilled.
“Certain foods have provisions relating to microbiological purity which would possibly be many times extra stringent than those for producing other food merchandise,” explains Ibald. “This meant that the new feed and booster pump needed to meet these tougher circumstances and each type of contamination needed to be ruled out to supply the widest potential variety of products on the system.”
Royal DSM is a worldwide science-oriented company that’s especially active within the areas of nutrition, health, and sustainable residing. DSM’s mission is to enhance the lives of all. Products and solutions from DSM tackle a few of the world’s greatest challenges whereas simultaneously creating financial, environmental, and societal worth for all its stakeholders—including prospects, workers, shareholders, and society at giant.
DSM delivers progressive solutions for the nutrition, animal vitamin, personal care and aromatics, medical merchandise, environmentally pleasant products and functions, as properly as new mobility and interconnectivity.
DSM and its affiliated firms make use of greater than 23,000 folks and generate an annual internet turnover of approximately 10 billion euros. The company was founded in 1902 and is listed on the Euronext Amsterdam inventory trade.
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After a go to at the company premises to consider the spatial and technical parameters, Lewa Nikkiso Switzerland really helpful a type G3F triplex course of diaphragm pump for the spray tower software. This pump features a fully safe start-up operation, since a spring continuously holds the integrated sandwich diaphragm positioned in a neutral position.
This protects the diaphragm towards incorrect positioning and prevents it from being damaged while the pump is beginning up, increasing system availability substantially. And the Lewa triplex is managed using a strain reduction valve that’s installed in the hydraulic half and could be configured for the particular state of affairs. Therefore, the pump can be adapted to different operational situations in order to prevent any overloads that may come up. This ensures that the unit has an extended service life and smooth common operation for the whole system.
In addition to the pressure relief valve and the spring management, the design of the diaphragm also performs an important role in making certain reliable pump operation. The patented sandwich diaphragm consists of two separate PTFE diaphragms that are extraordinarily long-lasting. They are connected to one another by way of optimistic interlocking during the discharge stroke and mechanical force-fitting through the suction stroke.
This makes the pump hermetically tight and successfully prevents external contamination. As an extra security function, the DPS monitoring system from Lewa repeatedly monitors the condition of the diaphragm. The monitoring unit promptly shows any harm to the gadget that leads to elevated strain within the diaphragm area.
This makes it potential to carry out preventive upkeep and repair work earlier than the diaphragm even begins to rupture and probably contaminates the pumped fluid. Thus, it’s often pointless to switch the pump off instantly, which implies that neither the pumping process nor spray drying are negatively impacted to a big extent. If damage to a diaphragm is detected, production can proceed without any issues as much as a deliberate upkeep stop. The components can then be replaced quickly and simply by releasing the cassette for the meeting.
The hermetically tight design of the method diaphragm pump does more than just ensure dependable steady operation. It can additionally be a central part for fulfilling the stringent hygiene provisions that the spray tower utility is subject to. The Lewa triplex maintains a hermetically tight house without dynamic seals, guaranteeing fully clear and aseptic manufacturing conditions. All pump heads that come into contact with the product are also electropolished, which makes it potential to ensure FDA-compliant pump operation.
Because the pump can be cleaned in place (CIP) utilizing different alkaline and acidic agents and with out prior dismantling, it is potential to meet the special necessities for baby food as well. The provisions for child meals are 1,000 times extra stringent than these for other merchandise in the meals sector. Thanks to the hermetically tight design, electropolishing, and CIP cleaning, we have been capable of rule out any contamination of the pumped medium and clearly meet the required hygiene commonplace.
The first quote was received in June of 2018 and in September of the same yr, DSM Nutritional Products AG placed an order for the triplex process diaphragm pump. In operation since April 2019, the pump has become an indispensable part of production on the plant in Sisseln.
“In every phase of the challenge, Lewa Nikkiso Switzerland demonstrated fast response times and well-founded expertise, which made a key contribution to implementing the challenge efficiently,” says Ibald. “Our specs with regard to high quality, robustness, and hygiene were adopted to the letter on this venture. As a end result, our manufacturing has become noticeably extra efficient and reliable.”
Lewa develops technologies and supplies options for the vast array of purposes among its clients. Its products are used primarily in the oil and fuel trade, in gas odorization, in refineries and petrochemicals, as properly as within the production of plastics, detergents, and cleaners. Additional utility areas include the chemical industry, cosmetics business, prescribed drugs and biotechnology, food and beverage business, and vitality utilities. For extra info, visit