Flexible Bag Container System for Liquid Dosing

The patent implements a nested container system where an inner flexible storage container is placed inside an outer rigid container. The inner container holds the liquid medium and can be sealed independently, preventing evaporation while maintaining easy filling and access through the outer container's opening. This nested structure resolves the contradiction by providing both operational ease and substance preservation.

The patent employs a self-cleaning dosing valve with a flushing mechanism that uses the liquid medium itself to clean internal surfaces. The system automatically flushes the dosing valve by circulating liquid through it, preventing solid particle accumulation and clogging without requiring external mechanical stirrers or manual intervention. This self-service approach maintains composition stability while avoiding additional mechanical complexity.

The patent combines multiple dosing functions into a single integrated dosing valve that can handle multiple liquid media simultaneously. The dosing valve is designed with multiple inlet ports and internal mixing capabilities, allowing sequential dosing precision to be maintained while enabling simultaneous introduction of multiple components into one container, thereby improving productivity.

The patent implements preliminary sealing of the inner flexible container before filling operations. The inner container is pre-sealed and can be filled through a controlled opening mechanism, preventing contamination and incorrect filling during transfer operations. This preliminary preparation ensures filling accuracy while maintaining efficient transfer operations, as the pre-sealed container can be quickly positioned and filled without risk of contamination.