What is the primary purpose of mixing two or more streams in ratio control?

The primary purpose of mixing two or more streams in ratio control is to maintain steady composition. In many industrial processes, especially in chemical and process engineering, ensuring the correct proportions of different materials is critical for achieving desired product specifications and consistency. Ratio control allows for the automatic adjustment of flow rates of the different streams in response to changes in process conditions, ensuring that the composition of the mixture remains within specified limits.

When the composition is steady, it leads to improved product quality, stability in downstream processes, and adherence to regulatory standards. This is particularly important in applications such as blending fuels, mixing chemicals for reactions, or producing solutions in precise concentrations. Maintaining a consistent composition helps prevent variations that could affect the overall process and output quality.