Agitator Mill Discharge Pipe Nested Inside Separation Device
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Solution Overview
Problem
Conventional mixing mills face issues such as air retention behind the separation device, product deposits leading to complex cleaning processes, and inefficient flow rates, which affect the quality and efficiency of product processing.
Innovation Solution
The introduction of a cylindrical filler with a central opening, which reduces the dead volume behind the separation device and ensures a minimum product level, thereby enhancing flow speed and reducing air retention and product deposits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If a conventional agitator mill design is used, then the structure is simple, but air remains in the separation device area and dead space is large
Solution Approach 1:
The discharge pipe is inserted into the separation device, with the discharge chamber formed between the separation device wall and the discharge pipe. This nested configuration reduces dead space volume while maintaining structural simplicity, as the discharge components are integrated within the existing separation device structure rather than adding external components.
Solution Approach 2:
The invention introduces a vertical dimension to the discharge system by forming the discharge chamber in the vertical space between the separation device and the inserted discharge pipe. This utilizes previously unused vertical space, reducing overall dead space without increasing horizontal footprint or structural complexity.
2Productivity
If conventional agitator mill design is used, then the structure is simple, but flow rate of product is low
Solution Approach 1:
The discharge pipe is nested within the separation device, creating an integrated discharge system. This configuration reduces flow resistance by providing a direct vertical discharge path and increases product flow rate without requiring complex external discharge mechanisms or additional components.
Solution Approach 2:
The invention extracts the discharge function from the conventional horizontal discharge configuration and repositions it vertically within the separation device. This extraction and repositioning of the discharge system eliminates flow restrictions and improves product flow rate while maintaining structural simplicity.
3Reliability
If conventional agitator mill design is used, then cleaning is simple, but product deposits occur on channel walls
Solution Approach 1:
The invention extracts the product discharge from the grinding chamber and directs it through a separate vertical discharge pipe. This separation prevents product from contacting the grinding chamber walls where deposits would form, ensuring consistent product quality without requiring complex cleaning systems. The discharge pipe can be easily cleaned independently.
Solution Approach 2:
The discharge system is segmented into separate components: the separation device, the discharge chamber, and the discharge pipe. This segmentation isolates the discharge path from the grinding chamber, preventing product deposits on chamber walls and allowing independent cleaning of each component, thereby maintaining product quality consistency.
4Loss of time
If conventional agitator mill design is used, then the residence time distribution is wide, but the structure is simple
Solution Approach 1:
The nested configuration of the discharge pipe within the separation device creates a defined vertical flow path that directs product through the separation device in a more uniform manner. This reduces residence time distribution by preventing channeling and dead zones, improving time efficiency without requiring complex flow control mechanisms.
Data Source
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AI summary
The invention provides a stirred mill for processing free-flowing materials. The stirred mill comprises a grinding container, a grinding chamber bounded by a container wall, and an agitator with a rotor rotatable about the central longitudinal axis. Tools extending towards the container wall are attached to the rotor. The stirred mill further comprises an inner stator located within the rotor. A material discharge channel is formed between the rotor and an outer wall of the inner stator, through which the material is conveyed to the separating device and then to a discharge line. The grinding chamber is at least partially filled with grinding media. A separating device is arranged above the inner stator. Downstream of the grinding media separating device, a material discharge chamber is formed in the direction of material flow.The grinding material discharge room is equipped with a device for setting a minimum level and/or a device for reducing the volume.