Bag With Integrated Air-Permeable Filter Section
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Solution Overview
Problem
Conventional bags for storing and transporting pulverulent products face instability due to trapped air, which compromises their stability and leads to inefficient filling and wasted storage space, as existing air extraction systems are complex and costly.
Innovation Solution
A bag design featuring an elongated air-permeable section integrated within the storage volume, allowing for direct air extraction using a portable industrial vacuum system, which is more affordable and efficient than traditional systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the bag is designed to be airtight to prevent powder sifting, then product containment is improved, but air trapping during filling occurs causing instability
Solution Approach 1:
The bag structure is segmented into airtight sections (bottom part, sidewall, upper part) and a separate air extraction system with permeable filter, allowing independent control of product containment and air removal functions
Solution Approach 2:
An air extraction system with filter acts as an intermediary between the airtight bag interior and exterior environment, selectively removing air while preventing powder escape through the filter medium
2Stability of the object's composition
If conventional air extraction systems are used to remove trapped air, then bag stability is improved, but system complexity and cost increase
Solution Approach 1:
The bag structure itself incorporates the air extraction capability through integrated filter sections and permeable elongated sections, allowing the bag to self-regulate air removal without requiring complex external extraction systems
Solution Approach 2:
Air-permeable filter materials and porous elongated sections are integrated into the bag structure, providing passive air extraction pathways that simplify the overall system while maintaining effectiveness
3Productivity
If air is trapped inside the bag during filling, then filling speed is maintained, but settling time increases and storage space is wasted
Solution Approach 1:
Air extraction operates continuously during the filling process through the integrated filter system, ensuring that air removal and product filling occur simultaneously without interruption, eliminating post-filling settling delays
Solution Approach 2:
Air is extracted from the bag interior during the filling process itself rather than after filling completes, preparing the bag for optimal product settlement and storage utilization in advance
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution significantly reduces the time for the pulverulent product to settle, optimizes storage volume usage, and eliminates wasted space by efficiently extracting air during the filling process, enhancing the stability and filling efficiency of the bag.
Implementation Method 1
at least one elongated section made of an air-permeable material and extending inside the storage volume of the bag, which elongated section is an integral part of the bag and comprises an outlet accessible from the outside of the bag, the elongated section acting as an integrated filter member
Implementation Method 2
configured to allow insertion of an elongated air-extraction member of an air-extraction system, inside the elongated section, so as to extract air directly from inside the storage volume of the bag during the filling operation
Data Source
AI summary
A bag for the storage and transport of a pulverulent product, such as agri-food, mineral, chemical or pharmaceutical powders and like powdery materials, the bag including a bottom part, a sidewall, and an upper part joined together to form a storage volume, wherein the upper part is provided with a filler inlet configured to allow the pulverulent product to be introduced inside the storage volume during a filling operation. The bag further includes lifting straps, and at least one integral elongated section made of an air-permeable material extending inside the storage volume and including an outlet accessible from the outside of the bag, the elongated section acting as an integrated filter member configured to allow insertion of an elongated air-extraction member of an air-extraction system inside the elongated section so as to extract air directly from inside the storage volume of the bag during the filling operation.