Temperature control in mixing tanks

One of the key production steps in the beverage and food industry is product blending. In this process the individual raw materials are mixed in exact proportions and under accurate conditions including temperature.

In the specific application the tank was equipped with an agitator with cum scraper. In the original set-up the temperature control was first effected by an infrared, then by time based monitoring. Due to the viscous and sticky consistency however the media wasn't measured correctly, causing time and again a product overheating in the tank. Due to this the entire product batch was unusable and as a result its value completely lost. In addition the installation had to be cleaned causing another substantial loss because of process downtimes. The Engineers team had the clear objective of stopping the overheat and ensuring a high level of product quality.

After careful consideration of the application parameters the Anderson-Negele team proposed installing the Temperature Sensor TSM with a weld-in sleeve process adapter with G 1/2" hygienic process connection. The main advantage of this very compact sensor is its front flush design, so that there is no component protruding into the tank and the blending devices can perfectly work without obstruction. The special design also ensures a very accurate measurement with extremely short response time, so that the control of all media including sticky and viscous media happens in real time and highly accurate.

The diameter of the head of this Mini version sensor is only 18 mm and can be integrated easily in all types of vessels and pipes, making stirring devices or pigging possible. After the initial tests the Engineers team was completely satisfied with the solution of installing the TSM at their plant. The sensor was easy to install, and in the process it fulfilled their requirement for a fast-response and high-accuracy temperature control in the Batch Mixing vessel to avoid overheat.