Effective level control in milk of lime mixing vessel
One area, recently improved, at its Newark production site is the production and mixing of milk of lime. This is an essential formulation for use in sugar production when purifying the juice from beet or cane. Typically, 125kg of limestone is consumed in the production of one ton of sugar, so it is a significant process input. Sugar beet is sliced up and passed through a diffuser to extract the sugar juice. Lime, produced from calcium limestone, is used in the next stage of the production process. It is converted into milk of lime and this is used to capture and remove impurities in the juice of sugar beet. A high quality lime-water mixture is required in the sugar process to ensure an efficient, high quality sugar juice purification stage.
Most of the sugar-processing plants have their own lime kilns, and they require good, high purity limestone to burn. This ‘high calcium’ limestone is converted into quicklime in lime kilns, at a temperature of 900°C. To obtain milk of lime, the ‘calcined’ lime is mixed into water and it is during this process that an accurate, reliable level measurement ensures consistent production.
Reduction of operating costs and maintenance effort
The process area requires necessarily high level of safety as the lime is harmful and an irritant to both skin and eyes in particular. Tank overflows and any consequential clean-up are unpleasant and hazardous. So, any form of level control that can increase reliability and reduce exposure of maintenance personnel in this area of the plant is of interest, and British Sugar were keen to look for a new measurement solution.
Buildup and difficult installation position are no problem with the high measurement frequency of 80 GHz
British Sugar at Newark are very happy with the results from this application, an improved reliability level measurement, better quality milk of lime and less maintenance time lost working on instruments or clean ups in the lime mixing plant.
Industries
![](/-/media/images/anwendungen/branchenbilder/industry_food_rdax_200x100.jpg?rev=b48caa6910ad45418d4d7cc5b16ebc7d)
Food industry
Related applications
Sugar vacuum pan
![Level measurement in a sugar vacuum pan](/-/media/images/application-graphics/food-and-beverage-2016/food-sugar-vacuum-pan-level-measurement.png?rev=af96b928e7c7405a9e547e8b19e1a236)
Level measurement in a sugar vacuum pan
To the applicationConveyor belt for sugar beet
![Measuring the level of sugar beets on the conveyor belt](/-/media/images/application-graphics/food-and-beverage-2016/food-conveyor-belt-sugar-beet-loading-level.png?rev=c6182405f99e4446bab96ab55f5e4d59)
Measuring the level of sugar beets on the conveyor belt
To the applicationSugar dissolver vessel
![Level measurement in the sugar dissolver vessel](/-/media/images/application-graphics/food-and-beverage-2016/food-sugar-dissolver-vessel-level-measurement.png?rev=f33440dd80724769a075c8d4a5254501)
Level measurement in the sugar dissolver vessel
To the applicationThickener for sugar beet juice
![Level measurement in a thickener](/-/media/images/application-graphics/food-and-beverage-2016/food-thickener-sugar-beet-juice-level-measurement.png?rev=6cd12a0708af4e7db73ccd1a9c339a50)
Level measurement in a thickener
To the applicationProduct information
Related articles
![VEGAPULS 64 provides reliability in the crystallization process in sugar production](/-/media/images/blog/radar-content/all-blog-article-rcl-foods-zucker-2.jpg?rev=8df718d0f8ba482c88fad06ae6aa654d)
VEGAPULS 64 provides reliability in the crystallization process in sugar production
Read moreExport this article
Download as PDFShare this article
Comments ({{comments.length}})
{{getCommentAuthor(comment, "Anonymous")}} {{comment.timestamp | date : "dd.MM.yyyy HH:mm" }}
{{comment.comment}}