Segmented Disk Apparatus for Recycled Concrete Aggregate Processing
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Solution Overview
Problem
Existing apparatuses for removing adhered substances from recycled concrete aggregates are not easily adaptable for replacement of worn-out parts and may not efficiently handle various materials like asphalt and tar-contaminated asphalt types.
Innovation Solution
The apparatus features a shaft with radially mounted disks, where at least one disk is composed of two parts that can be easily replaced without removing neighboring disks. The disks are arranged in a helical configuration to efficiently process materials, and the apparatus is suitable for both removing adhered substances and crushing materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If disks are made as single integrated parts, then structural strength is improved, but replacement of worn-out disks becomes time-consuming and complex
Solution Approach 1:
The disk is divided into two separate parts: a disk body and a disk cover. This segmentation allows the disk cover to be removed and replaced independently when worn, while the disk body remains in place. The segmentation is enabled by providing threaded bores in the disk body that engage with threads on the disk cover, creating a reversible connection that facilitates easy maintenance without requiring removal of the entire disk assembly or neighboring disks.
2Productivity
If multiple disks are mounted on the shaft, then processing efficiency is improved, but replacement of one disk requires removal of all preceding disks
Solution Approach 1:
By segmenting each disk into replaceable parts (disk body and disk cover), the invention enables independent access to any disk along the shaft. The disk cover can be unscrewed from the disk body to expose the internal structure, allowing replacement of worn components without disturbing the positioning or removal of neighboring disks mounted on the same shaft.
3Ease of repair
If disks are made of two separable parts, then ease of maintenance is improved, but structural integrity may be compromised
Solution Approach 1:
The disk body is pre-equipped with threaded bores designed to engage with corresponding threads on the disk cover. This preliminary preparation of threading ensures that when the disk cover is screwed onto the disk body, a strong mechanical connection is formed that can withstand operational loads. The threading geometry and material selection ensure that the assembled structure achieves sufficient structural integrity for the intended application while maintaining replaceability.
Data Source
Figure 1~3
Figure 4~5
AI summary
An apparatus (1) for removing adhered substance from particulate material, such as cement paste from particulate material of recycled concrete aggregate, or for crushing material, comprises a housing (2) including an inlet (3) for introducing untreated particulate material into the housing (2) and an outlet (4) for discharging treated particulate material from the housing (2). The inlet (3) and the outlet (4) are located at a distance from each other. The apparatus (1) comprises a shaft (5) which is mounted to the housing (2) and rotatable with respect to the housing (2) about an axis of rotation (6), a driving member (7, 8) for driving the shaft (5) about its axis of rotation (6) and a plurality of disks (9, 11) which are each mounted on the shaft (5) and located behind each other inside the housing (2). At least one of the disks (9, 11) is made of two parts (9a, 9b) which are fixed to each other about the shaft (5), which parts (9a, 9b) are adapted such that they are mounted onto the shaft (5) in a radial direction thereof prior to being fixed to each other.