The Swiss subsidiary of Dutch company DSM Nutritional Products AG uses the spray drying technique when producing vitamin and carotenoid powders for the pharmaceutical and meals industries. The process uses pump technology to convey various emulsions into a twig tower, the place they’re dried into powder. But the feed and booster pump that was being used proved to be an uncertainty issue as a outcome of the diaphragm required for the pumping process tended to tear when the pump was began up. Generally, such manufacturing interruptions may be corrected through immediate maintenance and repair work.
However, it is very expensive to replace a diaphragm or a whole system. DSM was seeking another and finally made a find once they talked to the pump experts at Lewa Nikkiso Switzerland, who really helpful a Lewa triplex course of diaphragm pump for the spray tower software. The drive unit features a secure start-up mode that keeps the diaphragm positioned in the neutral position, and steady regulation utilizing an built-in monitoring system. Since the hermetically tight pumps are electropolished and CIP-approved, it is easy to satisfy the food industry’s stringent hygienic provisions.
a hundred PERCENT INTEGRATION
“Pump technology plays a central function in drying oil-in-water emulsions for the food and pharmaceutical industries. These emulsions comprise substances such as nutritional vitamins, carotenoids, or polyunsaturated fatty acids as lively ingredients,” explains Natalie Ibald, plant manager of formulations at DSM Nutritional Products AG. “As a part of the process chain, every pump is one hundred pc integrated into the closed plant system. The pumps are used for conveying the mixtures into the spray tower.”
With the previous system, the chance of unexpected interruptions to this process couldn’t be dominated out. As a end result, the different emulsions could not be processed additional. In different phrases, it was not attainable to dry them into powder. The pump diaphragm was the explanation: it was usually too sensitive to resist the stress positioned on it when beginning up the pump and would rupture. Replacing the diaphragm decreased the system’s service life and sometimes meant that trouble-free operation could not be assured.
FINDING THE RIGHT PARTNER
In the course of searching for a dependable different, DSM got in contact with the Swiss subsidiary of pump producer Lewa.
“We have been already familiar with Lewa Nikkiso Switzerland as a provider of sturdy techniques with long service lives in the SFP sector. To guarantee trouble-free spray drying, we thought it would be sensible to join forces with the specialists from Lewa and give you a design to unravel the technical issues,” says Ibald.
DSM is dedicated to continually improving its processes and investing in know-how. This commitment, along with prior expertise with the quick service lives of the earlier pumps, led DSM to place special focus on dependable perform and a robust design through the venture planning section. The listing of necessities additionally included a considerable number of stringent hygienic provisions that had to be fulfilled.
“Certain foods have provisions relating to microbiological purity that are many times more stringent than these for producing different meals merchandise,” explains Ibald. “This meant that the model new feed and booster pump needed to meet these tougher circumstances and each type of contamination had to be ruled out to provide the widest possible number of products on the system.”
ROYAL DSM: PARTNER PROFILE
Royal DSM is a global science-oriented firm that’s particularly lively in the areas of diet, well being, and sustainable living. DSM’s mission is to improve the lives of all. Products and solutions from DSM address a variety of the world’s greatest challenges whereas concurrently creating economic, environmental, and societal worth for all its stakeholders—including prospects, employees, shareholders, and society at giant.
เกจวัดแรงดันสูญญากาศ delivers progressive options for the diet, animal vitamin, personal care and aromatics, medical merchandise, environmentally pleasant merchandise and applications, as nicely as new mobility and interconnectivity.
DSM and its affiliated companies employ more than 23,000 people and generate an annual web turnover of roughly 10 billion euros. The company was founded in 1902 and is listed on the Euronext Amsterdam stock exchange.
For more information, go to www.dsm.com.
GUARANTEED SAFE START-UP OPERATION
After a visit at the firm premises to assume about the spatial and technical parameters, Lewa Nikkiso Switzerland really helpful a sort G3F triplex course of diaphragm pump for the spray tower software. This pump includes a fully secure start-up operation, since a spring repeatedly holds the integrated sandwich diaphragm positioned in a neutral position.
This protects the diaphragm in opposition to incorrect positioning and prevents it from being damaged whereas the pump is starting up, increasing system availability considerably. And the Lewa triplex is controlled using a strain aid valve that’s put in within the hydraulic part and may be configured for the precise scenario. Therefore, the pump can be adapted to completely different operational conditions in order to prevent any overloads which will arise. This ensures that the unit has a long service life and smooth regular operation for the whole system.
THE POWER OF DESIGN
In addition to the stress aid valve and the spring management, the design of the diaphragm additionally plays an necessary role in ensuring reliable pump operation. The patented sandwich diaphragm consists of two separate PTFE diaphragms that are extraordinarily long-lasting. They are connected to one another through positive interlocking in the course of the discharge stroke and mechanical force-fitting during the suction stroke.
This makes the pump hermetically tight and effectively prevents exterior contamination. As an additional security feature, the DPS monitoring system from Lewa continuously screens the condition of the diaphragm. The monitoring unit promptly displays any injury to the gadget that results in increased strain within the diaphragm house.
This makes it attainable to carry out preventive maintenance and repair work before the diaphragm even begins to rupture and doubtlessly contaminates the pumped fluid. Thus, it is normally pointless to switch the pump off right away, which means that neither the pumping course of nor spray drying are negatively impacted to a significant extent. If injury to a diaphragm is detected, production can continue with none issues as a lot as a planned maintenance stop. The components can then be replaced rapidly and simply by releasing the cassette for the assembly.
ASEPTIC, FDA-COMPLIANT OPERATION
The hermetically tight design of the process diaphragm pump does more than simply guarantee dependable steady operation. It can also be a central part for fulfilling the stringent hygiene provisions that the spray tower application is subject to. The Lewa triplex maintains a hermetically tight space without dynamic seals, guaranteeing completely clean and aseptic production situations. All pump heads that come into contact with the product are additionally electropolished, which makes it potential to ensure FDA-compliant pump operation.
Because the pump may be cleaned in place (CIP) utilizing different alkaline and acidic agents and without prior dismantling, it is attainable to satisfy the particular necessities for baby meals as properly. The provisions for child meals are 1,000 times more stringent than these for different products within the meals sector. Thanks to the hermetically tight design, electropolishing, and CIP cleansing, we have been capable of rule out any contamination of the pumped medium and clearly meet the required hygiene normal.
QUICK RESPONSE TIMES AND WELL-FOUNDED EXPERTISE
The first quote was obtained in June of 2018 and in September of the identical yr, DSM Nutritional Products AG placed an order for the triplex course of diaphragm pump. In operation since April 2019, the pump has become an indispensable part of production on the plant in Sisseln.
“In each phase of the challenge, Lewa Nikkiso Switzerland demonstrated quick response occasions and well-founded expertise, which made a key contribution to implementing the venture successfully,” says Ibald. “Our specs with regard to high quality, robustness, and hygiene were followed to the letter in this project. As a end result, our production has turn out to be noticeably extra environment friendly and dependable.”
FOR MORE INFORMATION
Lewa develops applied sciences and provides options for the huge array of functions among its clients. Its products are used mainly in the oil and gas business, in gasoline odorization, in refineries and petrochemicals, as properly as in the production of plastics, detergents, and cleaners. Additional application areas include the chemical industry, cosmetics trade, prescription drugs and biotechnology, meals and beverage business, and vitality utilities. For extra data, go to www.lewa.com.
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