Continuous Powder Processing with Compact Conveying and Reduced Segregation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing systems for continuous production of solid dosage forms require significant vertical height, necessitating large production rooms and complex operator access, and suffer from product segregation issues due to lack of granulation, leading to non-homogeneous mixtures and quality issues.
Innovation Solution
The system positions the outlet of the dry powder mixing device lower than the feed frame inlet of the production machine and uses a product conveying device to transport the mixture, eliminating the need for vertical stacking and reducing system height, while avoiding segregation through a vacuum dense phase conveying system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If components are stacked vertically to enable gravity flow, then product flow reliability is improved, but system height increases to 5-7 meters requiring special production rooms
Solution Approach 1:
The patent inverts the conventional vertical stacking arrangement by positioning the mixing device at a higher level than the production machine, using a conveyor to transport powder upward rather than relying on gravity flow downward. This inversion resolves the contradiction by eliminating the need for excessive vertical height while maintaining continuous product flow.
Solution Approach 2:
The patent employs a conveyor system (which may be pneumatic or mechanical) to transport the powder mixture from the mixing device to the production machine, replacing the gravity-dependent vertical stacking arrangement. This allows horizontal or near-horizontal positioning of components, reducing system height to under 3 meters while ensuring reliable continuous flow.
2Area of stationary object
If vertical stacking is used, then space efficiency is improved, but operator access complexity increases requiring platforms and stairs
Solution Approach 1:
By inverting the vertical arrangement and using a conveyor system, the patent positions components at accessible heights without requiring operator platforms or stairs. The mixing device and production machine can be positioned at convenient working heights, greatly simplifying operator access while maintaining compact footprint.
3Device complexity
If dry powder mixing is used without granulation, then process simplicity is improved, but product segregation occurs leading to non-homogeneous mixtures
Solution Approach 1:
The patent uses a pneumatic or controlled conveyor system to transport the dry powder mixture, which prevents segregation during transfer while maintaining the simplicity of direct compression processing. The controlled conveying mechanism ensures homogeneous mixture delivery to the production machine without requiring granulation equipment.
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
This design allows for a compact, cost-effective installation in standard rooms, enhances accessibility, reduces operator complexity, and ensures homogeneous product mixing, maintaining quality and efficiency in direct processing systems.
Implementation Method 1
a product conveying device to transport the mixture, eliminating the need for vertical stacking and reducing system height, while avoiding segregation through a vacuum dense phase conveying system
Data Source
AI summary
A system for continuous processing of powder products includes a first inlet configured to input a first dry powder product, a second inlet configured to input a second dry powder product, and a dry powder mixing device that mixes the first dry powder product together with the second dry powder product to form a product mixture. An outlet dispenses the product mixture from the dry powder mixing device. A production machine is included and has a powder feed frame comprising a feed frame inlet connected to the outlet of the dry powder mixing device. The outlet of the dry powder mixing device is positioned at a lower level than the feed frame inlet. A product conveying device is connected between the outlet of the dry powder mixing device and the feed frame inlet to continuously convey the product mixture from the dry powder mixing device to the feed frame inlet.