Circulating Fluidized Bed for Viscous Material Drying
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Solution Overview
Problem
Current circulating fluidized bed technologies face challenges in processing high-humidity high-viscosity materials and grinding large mineral materials due to issues like material attachment, equipment damage, and inefficient energy use, leading to increased production costs and suboptimal product quality.
Innovation Solution
A circulating fluidized bed apparatus with a fan, circulating pipe, functional branch, and feeding pipe is designed to efficiently disperse and process materials by creating a high-speed fluidized state, incorporating features like cyclone dust collectors, molecular sieve dryers, and ultraviolet sterilization for effective drying, screening, and grinding operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high-humidity high-viscosity materials are processed using conventional drying equipment, then the materials can be dried, but the materials will be attached to machine parts causing operational difficulties
Solution Approach 1:
The patent uses a fluidized bed system where air flow suspends particles in a fluid-like state, enabling drying without material attachment to solid surfaces. The circulating fluidized bed creates a pneumatic environment that prevents viscous materials from adhering to machine parts while maintaining effective drying contact.
Solution Approach 2:
The drying process is segmented into multiple circulation cycles where materials are continuously dispersed, dried, and recirculated. This segmentation prevents continuous contact with any single machine part, reducing attachment issues while maintaining drying efficiency.
2Productivity
If mineral grinding is performed using existing processes, then materials can be ground, but fine powder cannot be separated timely reducing efficiency and increasing energy consumption
Solution Approach 1:
The patent combines grinding, separation, and drying operations into a single circulating fluidized bed system. The cyclone separator is integrated directly into the circulation loop, allowing fine powder to be separated and returned to the grinding zone without external transfer, eliminating time loss and improving overall productivity.
Solution Approach 2:
The system maintains continuous circulation of materials through the grinding and separation zones without interruption. Fine powder is separated by the cyclone and immediately returned to the fluidized bed for further processing, ensuring continuous useful action without idle separation time.
3Reliability
If conventional drying and grinding methods are used for medicine and food materials, then materials can be processed, but operation temperature is high causing loss of effective ingredients
Solution Approach 1:
The fluidized bed system uses low-temperature air circulation instead of high-temperature contact drying. The pneumatic suspension and drying process occurs at temperatures suitable for heat-sensitive medicinal and food materials, preserving effective ingredients while achieving thorough drying.
Solution Approach 2:
The system changes the drying parameter from high temperature to low temperature with extended circulation time. By maintaining materials in a fluidized state with gentle air flow, the drying process achieves effectiveness at lower temperatures that preserve sensitive compounds.
4Adaptability or versatility
If existing evaporation and distillation equipment is used, then separation operations can be performed, but energy consumption is high and adaptability is limited
Solution Approach 1:
The circulating fluidized bed system performs multiple functions including drying, grinding, separation, mixing, and evaporation in a single apparatus. This multi-functionality increases adaptability to different materials and processes while reducing the energy consumption associated with multiple separate equipment systems.
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 apparatus achieves reliable and efficient operations such as drying, smashing, evaporation, and distillation with reduced energy consumption, lower production costs, and improved product quality, addressing the limitations of existing technologies in handling viscous materials and mineral grinding.
Implementation Method 1
the fan and jet stream generated thereby disperse materials into a fluidized state
Implementation Method 2
the cyclone dust collector branch is used for impurity separation and material classification
Implementation Method 3
the molecular sieve in the first molecular sieve container 95 adsorbs moisture and/or specific ingredients in gas
Implementation Method 4
an ejector is a device which utilizes a nozzle to spray high-pressure fluid into a mixing pipe, so as to form negative pressure around the nozzle and suck materials through the negative pressure
Data Source
AI summary
A circulating fluidized bed apparatus, using fans, circulating pipes, functional branches and feeding pipes sequentially connected to form one or more circulating channels; the fans and jet streams generated thereby disperse materials into a fluidized state; the fluidized materials circulate and flow at a high speed in the circulating channels to achieve the objectives of the process, efficiently realizing operations such as drying, smashing, evaporating and distilling, concentrating, sieving, mixing, and ultraviolet sterilizing of powdered materials, realizing quick drying at normal temperature, and quickly preparing fresh plant materials into powdered materials at normal temperature. All the operations are performed by one apparatus, thus reducing equipment investment, simplifying production process steps, improving product quality, reducing production costs, and having low energy consumption, wide application and a simple structure.