Rotor Mill Wall Cladding and Connecting Disc for Uniform Processing Gap
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Solution Overview
Problem
Existing processing devices, such as the Rotor Impact Mill RPM and RPMV, face challenges in achieving refined material processing, particularly due to excessive wear of the inner circumferential wall and non-uniform processing results.
Innovation Solution
The device incorporates wall cladding elements that protect the inner circumferential wall and a connecting disc to distribute forces effectively, along with U-shaped processing elements stabilized by wedge-shaped projections and adapter elements to maintain a consistent processing gap, allowing higher rotor speeds and improved processing performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the rotor operates at higher speeds to improve processing performance, then productivity increases, but wear on the inner circumferential wall increases causing inconsistent processing results
Solution Approach 1:
The patent applies wear-resistant linings or coatings on the inner circumferential wall that can be replaced periodically. These sacrificial protective layers absorb the wear from high-speed rotor operation, maintaining processing consistency while allowing high productivity. The linings are designed to be replaced before they cause significant wear to the base structure.
Solution Approach 2:
The patent utilizes composite material structures for the inner circumferential wall, combining base structural material with wear-resistant surface layers. This composite approach provides both the structural integrity needed for high-speed operation and the surface properties that resist wear, ensuring consistent processing results while maintaining high productivity.
2Manufacturing precision
If wall cladding elements are made rigidly connected to reduce processing gap variation, then manufacturing precision improves, but device complexity increases
Solution Approach 1:
The patent divides the inner circumferential wall protection system into multiple replaceable wall cladding elements rather than a single rigid structure. Each segment can be independently positioned and secured, providing precise control over the processing gap while maintaining modularity that limits overall system complexity.
Solution Approach 2:
The wall cladding elements are pre-configured with mounting features and geometric profiles that ensure proper positioning and uniform processing gaps upon installation. This preliminary preparation of the cladding elements eliminates the need for complex adjustment mechanisms during operation, achieving precision without excessive complexity.
Data Source
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AI summary
Processing device (10) for processing material to be processed, comprising a stationary housing (20) with a feed opening (22) for feeding material to be processed and comprising a rotor (26) which is arranged in the stationary housing (20) so as to be rotatable about a substantially vertically extending rotor axis, wherein, adjacent to the outer circumference of a base element of the rotor (26), a plurality of bearing pins are fastened to the base element, with a processing element being mounted on each of said bearing pins, and wherein the radially outer ends of the processing elements form a processing gap with an inner circumferential wall of the stationary housing (20), characterized in that the free ends of the bearing pins are connected to one another via a connecting disc.