Arc Screen Cleaning via Rinsing Nozzle and Linear Bearing
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Solution Overview
Problem
The existing device for separating large and sieving goods is inefficient in cleaning the sieve, as manual cleaning is time-consuming and labor-intensive, requiring the device to stand still for extended periods.
Innovation Solution
The device incorporates a nozzle arm with adjustable nozzles to direct cleaning fluid efficiently across the sieve passage side, combined with linear bearings for precise movement, allowing for automatic cleaning that reduces downtime and enhances cleaning efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual cleaning of the arc screen is performed by opening the housing, then the screen can be cleaned, but the device is idle for extended periods and the process is time-consuming
Solution Approach 1:
The system enables self-service cleaning through the rinsing nozzle that automatically cleans the arc screen without requiring manual intervention. The cleaning fluid is discharged through the nozzle to clean the screen passage side, allowing the device to maintain itself during operation or with minimal downtime.
Solution Approach 2:
Instead of cleaning the screen from the feed side by opening the housing, the invention cleans from the passage side using a rinsing nozzle. This inverted approach allows cleaning to occur without disassembling the housing, significantly reducing downtime while maintaining cleaning effectiveness.
2Ease of operation
If the arc screen is cleaned from the screen feed side, then cleaning can be performed, but it takes significantly more time compared to cleaning from the passage side
Solution Approach 1:
The invention inverts the cleaning approach by targeting the passage side of the arc screen rather than the feed side. Material trapped in the arc screen is pushed back into the screen during cleaning from the passage side, enabling significantly faster cleaning while maintaining effectiveness.
Solution Approach 2:
The cleaning function is extracted from the manual housing opening process and implemented as an automated rinsing operation. The rinsing nozzle delivers cleaning fluid directly to the passage side, separating the cleaning action from the housing opening/closing cycle and reducing overall cleaning time.
3Device complexity
If a single rinsing nozzle is used, then the structure is simple, but the cleaning fluid coverage area is limited
Solution Approach 1:
The cleaning system is segmented into multiple nozzles arranged on the nozzle arm, with each nozzle targeting a specific section of the arc screen. This segmentation allows comprehensive coverage of the screen passage side while maintaining a relatively simple overall structure.
Solution Approach 2:
The nozzles are arranged in a spatial configuration on the nozzle arm that extends across the screen width. By utilizing the transverse dimension, the system achieves broad coverage area without increasing vertical or longitudinal complexity, effectively distributing cleaning fluid across the entire screen surface.
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
The automatic cleaning system significantly reduces the time required to clean the sieve, improving operational efficiency and reducing the need for manual labor, thereby minimizing the device's standstill during maintenance.
Implementation Method 1
a rinsing nozzle directed towards the sieve passage side of the arc sieve, which is configured to discharge a cleaning fluid directed towards the sieve passage side of the arc sieve
Implementation Method 2
a linear bearing that movably supports the flushing arm transversely to the overflow direction
Implementation Method 3
the linear bearing comprises a tapered roller, which can, for example, be oriented away from the screen passage side. The tapered roller preferably rests on a guide rail extending transversely to the overflow direction, which is concave when viewed from the vertical direction. This concave design reduces the holding force exerted by material falling onto the guide rail
Data Source
Figure 1
Figure 2
AI summary
The invention relates to a device (2) for separating a feed material into coarse material and screened material, comprising: - a housing (4) extending in a longitudinal direction (6), in a transverse direction (8) lying transverse to the longitudinal direction (6) and in a vertical direction (10) lying transverse to the longitudinal direction (8) and transverse to the transverse direction (8) and enclosing an interior space (12) with a feed material access (14) for introducing the feed material into the interior space (12), with a coarse material outlet (16) arranged below the feed material access (14) when viewed in the vertical direction (10) and leading out of the interior space (12) and with a screened material outlet (18) arranged below the feed material access (14) when viewed in the vertical direction (10) and leading out of the interior space (12),and - an arc screen (28) arranged in the interior (12) and separating the feed inlet (14) and the coarse material outlet (16) from the screen material outlet (18), with a screen passage side (32) directed towards the screen material outlet (18) and a screen feed side (30) opposite the screen passage side (32), characterized by - a rinsing nozzle (51) directed towards the screen passage side (32) of the arc screen (28), which is configured to discharge a cleaning fluid (50) towards the screen passage side (32) of the arc screen (28).