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Precision batching system for multiple recipes
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Application Requirement
A single process system is required to handle multiple batch recipes combining water, two or three powders, and up to six other liquid ingredients involved in paint production. Individual ingredients, stored in separate tanks, feed into a single ten-ton mixing tank with seven tons of tare weight.
Customer Concern
All recipe ingredients must be conveyed flawlessly to a single batch/blend vessel with a high-powered agitator. Resultant batch quality cannot be diminished from recipe to recipe.
Vishay Solution
Vishay Nobel connected all seven ingredient vessels (six for liquids and one to batch the powders) to TAD 3 Indicators equipped with batching software. All TAD 3 Indicators were connected to a supervisory DCS System via RS 485 Modbus RTU communication.
The DCS system handles all recipe formulation by downloading ingredient data parameters to each of the TAD 3 Indicators. Batching of each ingredient is done locally by the TAD 3 indicators into the mixing tank. KIS-1 Load Cells weigh the mix tank contents precisely while rejecting the torque side load introduced by the agitator. Batch process results are fed back to the DCS System from another TAD 3 that controls the mixing tank.
Precise repeatability from recipe to recipe is maintained by KIS-1 and TAD 3 technology.
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