Bast Fiber Processing Line Mechanical Degumming
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Solution Overview
Problem
The processing of bast fibers in China is hindered by antiquated technology, leading to low productivity, high labor costs, environmental contamination, and poor fiber quality due to inefficient separation, degumming, and processing methods, particularly for cannabis fibers which require specific handling and have unique properties.
Innovation Solution
A comprehensive processing line incorporating carding, cutting, degumming, washing, softening, and combing devices, including mechanical and biological degumming systems, high-temperature washing, and hemp-softening oil application, to improve fiber separation, reduce pollution, and enhance productivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional hand stripping process is used for cannabis bast fiber separation, then labor flexibility is maintained, but processing efficiency is greatly limited and labor costs increase
Solution Approach 1:
The patent replaces the traditional manual hand stripping process with a mechanical separation device that uses rotating rollers with protrusions to automatically separate cannabis bast fibers from stems. This mechanical substitution dramatically increases processing efficiency while reducing labor costs, directly resolving the contradiction between productivity and device complexity.
2Manufacturing precision
If traditional degumming methods are used for cannabis fiber, then processing simplicity is maintained, but fiber quality is poor and individual fiber length is shortened
Solution Approach 1:
The patent divides the degumming process into multiple sequential stages: coarse degumming, fine degumming, and finishing treatment. Each stage uses specifically designed rollers with different surface characteristics to progressively remove gums and impurities without damaging fiber length. This segmented approach improves fiber quality while managing process complexity through systematic decomposition.
Solution Approach 2:
The patent employs parameter changes in the degumming process by varying roller surface properties, rotation speeds, and pressure applied at different stages. These controlled parameter adjustments enable precise removal of gums and impurities while preserving fiber integrity and length, resolving the contradiction between manufacturing precision and process complexity.
3Productivity
If traditional processing equipment is used for bast fiber, then equipment simplicity is maintained, but productivity is low and labor intensity is high
Solution Approach 1:
The patent designs integrated processing equipment that combines multiple functions: separation, degumming, washing, and drying in a single continuous line. This multi-functional equipment increases productivity by eliminating transfer between separate devices while managing complexity through functional integration, directly addressing the contradiction between production output and equipment modernization.
Solution Approach 2:
The patent implements a continuous processing system where fibers move continuously through separation, degumming, washing, and drying stages without interruption. This continuity eliminates idle time and transfer operations, significantly increasing production output while the integrated design manages equipment complexity through streamlined workflow.
4Object-affected harmful factors
If traditional processing methods are used for bast fiber, then energy consumption is low, but environmental pollution is serious due to large volume of sewage
Solution Approach 1:
The patent replaces chemical degumming methods with mechanical separation using specially designed rollers that physically remove gums and impurities through friction and abrasion. This substitution eliminates chemical sewage generation while the mechanical energy required is minimal, resolving the contradiction between environmental pollution and energy consumption.
Solution Approach 2:
The patent converts the natural structure of cannabis bast (with its embedded gums and impurities) into an advantage by using mechanical rollers that exploit these structural features for automatic separation. This approach eliminates chemical treatment needs and sewage generation while consuming minimal energy, transforming the processing challenge into an efficient solution.
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 new processing line increases bast fiber separation efficiency by 10-20%, reduces environmental pollution, and improves fiber quality by using pollution-free physical and mechanical degumming, biological treatment, and efficient water management, while also enabling comprehensive utilization of by-products.
Implementation Method 1
mechanical rubbing area includes upper and lower rows of rollers set in pairs
Implementation Method 2
upper row rollers are disposed with a pressure control device respectively on the top of the two ends thereof
Implementation Method 3
high temperature digesting and degumming device which is also used for high temperature washing
Implementation Method 4
biological degumming device
Implementation Method 5
separating and water washing device includes... a water collection tank disposed below the belt
Data Source
AI summary
A processing line of bast fiber is provided. The processing line is comprised of various devices for carding, cutting, degumming, high temperature washing, separating and water washing, softening, drying, batching and applying oil, permeating and reconditioning, stretching-breaking carding, and combing and sorting. The processing line of bast fiber can improve production efficiency, and improve the yield of long hemp fibers. Moreover, the produced fiber has stable quality and is convenient for post-processing.