Vibrating Screen Element Removal via Movable Tool and Chute
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Solution Overview
Problem
Vibrating screen apparatuses face challenges with screen element deformation and material accumulation, leading to prolonged maintenance times and potential operator safety risks due to the need to dismount upper screen elements during maintenance, especially when dealing with materials like gravels with clays or bituminous conglomerates.
Innovation Solution
The design incorporates a movable tool with guiding profiles and a chute system that allows for the removal and reinsertion of screen elements from outside the vibrating screen apparatus, preventing material accumulation and facilitating the handling of partially deformed elements, thus reducing maintenance time and operator exposure to hazardous environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If screen elements with calibrated openings of lower sizes are used, then classification precision is improved, but the structure of the element undergoes deformations that do not allow easy fixing and maintenance
Solution Approach 1:
The supporting structure is divided into multiple independent components: a fixed support element and a movable support element that can be independently positioned and secured. This segmentation allows the screen element to be easily removed and reinstalled without requiring deformation of the element itself, resolving the contradiction between precision classification and ease of maintenance.
Solution Approach 2:
The supporting structure incorporates movable elements that can be adjusted during installation and maintenance operations. The movable support element can be repositioned along the support element to accommodate screen elements of different sizes and shapes, enabling easy fixing even when the screen element structure is sensitive or deformed.
2Ease of repair
If screen elements are removed for cleaning or replacement, then maintenance is performed, but material deposit completely or partially invades the seat of the structure preventing reinsertion
Solution Approach 1:
The harmful material deposit is extracted from the supporting structure seat through the chute mechanism. The chute allows material to be removed from the support element during maintenance operations, clearing the seat and enabling subsequent reinsertion of the screen element without interference from accumulated debris.
Solution Approach 2:
The supporting structure is designed with a chute that preliminarily removes material deposit before the screen element reinsertion operation. This preliminary cleaning action prevents the seat from being blocked by accumulated material, ensuring smooth reinsertion of the screen element without requiring additional clearance operations.
3Ease of repair
If upper screen elements are dismounted to access blocked lower screen elements, then maintenance of lower elements is possible, but considerable waste of time and complete break-off of activity occur
Solution Approach 1:
The supporting structure is segmented into independent support elements for each screen element level. Each support element can be independently accessed and maintained through the chute mechanism, eliminating the need to dismount upper screen elements to reach lower ones. This segmentation enables isolated maintenance operations that minimize time loss and maintain productivity.
4Ease of operation
If operator enters vibrating screen apparatus for maintenance, then screen element can be accessed, but operator is exposed to dusty and potentially injurious environment
Solution Approach 1:
The maintenance operation is extracted from the interior of the vibrating screen apparatus and relocated to the exterior through the chute mechanism. All maintenance operations can be performed from outside the apparatus, eliminating the need for the operator to enter the dusty and potentially injurious environment while still providing direct access to the screen element for maintenance.
Data Source
Figure 1~2
Figure 3~4
Figure 5~7
AI summary
Vibrating screen apparatus (1) embodying at least one screen element (7) transversely insertable and/or extractable by means of movement substantially on the riddling plane, said screen element (7) including at the internal end hooking means (8) to hook to a supporting structure (6) characterised in that said supporting structure (6) includes: first deviation means to deviate the insertion path of said screen element (7) from an insertion plane to an hooking plane in retraction; second deviation mean to deviate the path of said screen element (7) from an off-hook plane, to an extraction plane, during the movement of said first screen element first towards the inside as releasing action and then towards the exterior as extraction action.