The Swiss subsidiary of Dutch firm DSM Nutritional Products AG uses the spray drying technique when producing vitamin and carotenoid powders for the pharmaceutical and meals industries. The procedure uses pump expertise to convey numerous emulsions into a spray 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 process tended to tear when the pump was started up. Generally, such production interruptions could be corrected via immediate upkeep and repair work.
However, it is extremely expensive to switch a diaphragm or a whole system. DSM was seeking another and at last made a find once they talked to the pump experts at Lewa Nikkiso Switzerland, who beneficial a Lewa triplex process diaphragm pump for the spray tower software. The drive unit features a protected start-up mode that retains the diaphragm positioned in the neutral position, and steady regulation using an built-in 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 performs a central position in drying oil-in-water emulsions for the meals and pharmaceutical industries. These emulsions include substances corresponding to nutritional vitamins, carotenoids, or polyunsaturated fatty acids as active components,” explains Natalie Ibald, plant supervisor of formulations at DSM Nutritional Products AG. “As 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 earlier system, the danger of unforeseen interruptions to this course of couldn’t be ruled out. As a end result, the completely different emulsions could not be processed additional. In other words, it was not potential to dry them into powder. จำหน่ายเกจวัดแรงดัน was the explanation: it was typically too sensitive to withstand the stress placed on it when beginning up the pump and would rupture. Replacing the diaphragm reduced the system’s service life and typically meant that trouble-free operation could not be guaranteed.
In the course of searching for a dependable various, DSM obtained in contact with the Swiss subsidiary of pump producer Lewa.
“We had been already familiar with Lewa Nikkiso Switzerland as a provider of strong techniques with lengthy service lives within the SFP sector. To guarantee trouble-free spray drying, we thought it will be good to affix forces with the specialists from Lewa and provide you with a design to solve the technical issues,” says Ibald.
DSM is dedicated to continually bettering its processes and investing in expertise. This commitment, along with prior expertise with the short service lives of the previous pumps, led DSM to position particular give attention to dependable perform and a robust design in the course of the project planning phase. The list of necessities also included a considerable variety of stringent hygienic provisions that had to be fulfilled.
“Certain foods have provisions regarding microbiological purity which are many times more stringent than those for producing other food products,” explains Ibald. “This meant that the model new feed and booster pump needed to meet these tougher situations and every type of contamination had to be ruled out to provide the widest possible number of products on the system.”
Royal DSM is a worldwide science-oriented firm that is particularly energetic within the areas of vitamin, well being, and sustainable living. DSM’s mission is to enhance the lives of all. Products and solutions from DSM tackle a few of the world’s biggest challenges while concurrently creating economic, environmental, and societal value for all its stakeholders—including clients, workers, shareholders, and society at massive.
DSM delivers progressive options for the diet, animal vitamin, private care and aromatics, medical products, environmentally pleasant merchandise and applications, as nicely as new mobility and interconnectivity.
DSM and its affiliated corporations make use of greater than 23,000 folks and generate an annual web turnover of approximately 10 billion euros. The firm was based in 1902 and is listed on the Euronext Amsterdam inventory trade.
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After a visit on the company premises to consider the spatial and technical parameters, Lewa Nikkiso Switzerland recommended a sort G3F triplex process diaphragm pump for the spray tower utility. This pump includes a completely secure start-up operation, since a spring repeatedly holds the built-in sandwich diaphragm located in a neutral position.
This protects the diaphragm in opposition to incorrect positioning and prevents it from being broken whereas the pump is starting up, growing system availability considerably. And the Lewa triplex is managed utilizing a pressure relief valve that’s installed in the hydraulic part and can be configured for the specific situation. Therefore, the pump could be tailored to different operational conditions so as to stop any overloads that may arise. This ensures that the unit has an extended service life and easy regular operation for the complete system.
In addition to the strain reduction valve and the spring management, the design of the diaphragm additionally plays an important function in making certain reliable pump operation. The patented sandwich diaphragm consists of two separate PTFE diaphragms which are extremely long-lasting. They are related to one another via optimistic 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 external contamination. As a further safety characteristic, the DPS monitoring system from Lewa constantly screens the situation of the diaphragm. The monitoring unit promptly displays any damage to the system that leads to increased strain in the diaphragm house.
This makes it attainable to hold out preventive maintenance and repair work earlier than the diaphragm even begins to rupture and doubtlessly contaminates the pumped fluid. Thus, it is normally pointless to modify the pump off right away, which implies that neither the pumping process nor spray drying are negatively impacted to a big extent. If damage to a diaphragm is detected, manufacturing can continue without any issues up to a planned upkeep stop. The parts can then get replaced quickly and simply by releasing the cassette for the meeting.
The hermetically tight design of the method diaphragm pump does more than simply guarantee reliable continuous operation. It can additionally be a central element for fulfilling the stringent hygiene provisions that the spray tower application is topic to. The Lewa triplex maintains a hermetically tight space with out dynamic seals, guaranteeing fully clean and aseptic manufacturing situations. All pump heads that come into contact with the product are also electropolished, which makes it potential to make sure FDA-compliant pump operation.
Because the pump can be cleaned in place (CIP) using different alkaline and acidic agents and without prior dismantling, it’s possible to meet the particular necessities for baby meals as properly. The provisions for baby food are 1,000 occasions extra stringent than these for other merchandise in the meals sector. Thanks to the hermetically tight design, electropolishing, and CIP cleansing, we had been in a position to rule out any contamination of the pumped medium and clearly meet the required hygiene standard.
The first quote was obtained in June of 2018 and in September of the same yr, DSM Nutritional Products AG positioned 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 every part of the project, Lewa Nikkiso Switzerland demonstrated fast response occasions and well-founded expertise, which made a key contribution to implementing the project successfully,” says Ibald. “Our specifications with regard to quality, robustness, and hygiene had been adopted to the letter on this challenge. As a end result, our production has become noticeably more environment friendly and dependable.”
Lewa develops technologies and provides solutions for the huge array of applications among its customers. Its merchandise are used primarily in the oil and fuel business, in gas odorization, in refineries and petrochemicals, in addition to within the manufacturing of plastics, detergents, and cleaners. Additional utility areas embody the chemical industry, cosmetics industry, prescribed drugs and biotechnology, meals and beverage business, and vitality utilities. For extra information, go to