Powdery Material Mixing and Feeding Device for Continuous Tableting
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Solution Overview
Problem
The batch method for producing tablets is inefficient, requiring multiple processes, large space, and high raw material usage, with difficulties in timely feeding and storage of intermediate products, and lacks continuous processing capabilities.
Innovation Solution
A powdery material mixing and feeding device that simultaneously measures and feeds powdery materials to a compression molding machine, using vertical and horizontal mixers to achieve high mixing degrees and continuous tableting without the need for batch storage, with optional lubricant feeding and mixing degree measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If batch method is used for tablet production, then each process can be conducted separately with dedicated facilities, but production efficiency is low due to standby periods and manual delivery between processes
Solution Approach 1:
The patent combines multiple batch processes (granulating, drying, mixing, tableting) into a single integrated facility where all processes occur simultaneously in different chambers. This eliminates the need for manual delivery of intermediate products between separate facilities and removes standby periods, thereby maintaining process separation benefits while dramatically improving production efficiency.
Solution Approach 2:
The patent creates a universal facility that performs multiple functions - granulating, drying, mixing, and tableting - all within one integrated structure. This multi-functional design allows continuous operation across all processes without requiring separate dedicated facilities for each step, resolving the contradiction between process specialization and production efficiency.
2Ease of manufacture
If batch method is used with separate chambers for each process, then facility design is simplified for each process, but large space is occupied and manual delivery is required
Solution Approach 1:
The patent arranges multiple process chambers (granulating chamber, drying chamber, mixing chamber, tableting chamber) in a nested or vertically stacked configuration within a single facility. This nesting approach allows each process to have its own dedicated chamber while occupying minimal overall space, eliminating the need for horizontal expansion with separate buildings.
Solution Approach 2:
The patent merges multiple separate facility requirements into one integrated structure where all process chambers are housed together. This consolidation maintains the functional separation needed for each process while dramatically reducing the total occupied space and eliminating manual delivery requirements between distant locations.
3Adaptability or versatility
If batch method is used with intermediate product storage, then processes can be conducted independently, but raw material usage increases due to verification experiments for scaling up
Solution Approach 1:
The patent enables continuous operation where intermediate products are directly transferred from one process to the next without batch storage interruptions. This continuous flow allows seamless scaling from small to large production without requiring repeated verification experiments with raw materials, thereby maintaining process adaptability while minimizing raw material waste.
4Ease of operation
If intermediate products are stored in chambers between processes, then timely feeding is enabled, but large storage space is required and worker delivery is needed
Solution Approach 1:
The patent introduces automated conveying mechanisms as intermediaries that directly transfer intermediate products between adjacent process chambers. This eliminates the need for large storage chambers and manual worker delivery, providing timely feeding through automated continuous transfer while minimizing storage space requirements.
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
Enables continuous mixing and tableting, reduces raw material usage and storage needs, improves mixing consistency, and enhances production efficiency by eliminating batch method limitations, allowing for direct and continuous feeding to the compression molding machine.
Implementation Method 1
a vertical mixer (Z3) including a mixing member (Z34) configured to rotate about a substantially vertical shaft and mix powdery materials
Implementation Method 2
a horizontal mixer (Z4) including a mixing member (Z44) configured to rotate about a substantially horizontal shaft and mix powdery materials
Implementation Method 3
a reservoir configured to reserve part of the powdery materials to be mixed
Data Source
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AI summary
A powdery material mixing and feeding device (Z) is configured to mix at least two types of powdery materials and feed a compression molding machine with the mixed powdery materials. The powdery material mixing and feeding device (Z) includes a vertical mixer (Z3) including an agitating rotor (Z34) configured to rotate about a substantially vertical shaft and mix powdery materials and a reservoir configured to reserve at least part of the powdery materials, and a horizontal mixer (Z4) including an agitating rotor (Z44) configured to rotate about a substantially horizontal shaft and mix powdery materials.