Conveyor dishwashing machine, and method for operating a conveyor dishwashing machine
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Solution Overview
Problem
Conveyor dishwashing machines face reduced capacity when treatment parameters require longer dwell times for heavily soiled items, leading to lower washing performance during peak times due to slower transport speeds and longer treatment programs.
Innovation Solution
The machine is configured with at least two washing planes within treatment zones, allowing for simultaneous treatment of items with different parameters, such as exposure time, mechanical washing action, and liquid composition, enabling standard and intensive treatments to run in parallel without reducing overall capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the transport speed is reduced to increase dwell time for heavily soiled items, then the washing quality for heavily soiled items is improved, but the overall productivity of the machine is reduced
Solution Approach 1:
The washing machine is divided into multiple washing zones (first washing zone, second washing zone, third washing zone) with different transport speeds. The first washing zone operates at a lower transport speed for heavily soiled items to ensure thorough cleaning, while the second and third washing zones operate at higher speeds for less soiled items, thereby maintaining high productivity while improving washing quality for heavily soiled items.
2Manufacturing precision
If the transport speed is reduced to allow longer treatment programs, then the washing performance for heavily soiled items is improved, but the capacity for treating less soiled items is reduced
Solution Approach 1:
The treatment process is segmented into multiple washing zones with different duration parameters. The first washing zone provides extended treatment for heavily soiled items, while subsequent zones provide shorter treatments for less soiled items, allowing the machine to handle diverse washing needs simultaneously without compromising capacity.
Solution Approach 2:
The transport speed and treatment duration are made dynamic and adjustable for each washing zone. The control system can independently regulate the dwell time and transport speed in each zone, enabling flexible adaptation to different soiling levels and maintaining optimal washing performance across varying operational conditions.
3Productivity
If a single washing plane is used, then the device complexity is low, but the productivity is limited due to sequential processing
Solution Approach 1:
The system transitions from a single washing plane to multiple washing planes (first washing plane, second washing plane) arranged vertically or spatially. This dimensional expansion enables parallel processing of different item types simultaneously, significantly increasing productivity while adding only moderate complexity through the inclusion of additional spray systems and transport mechanisms.
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
This configuration enhances washing performance for heavily soiled items while maintaining the capacity for less soiled items, as both treatment types can occur concurrently without extending the machine's operational footprint or reducing its capacity.
Implementation Method 1
washing liquid is sprayed onto the wash items to be treated in the conveyor dishwashing machine
Implementation Method 2
final rinse liquid is sprayed onto the wash items to be treated in the conveyor dishwashing machine
Implementation Method 3
a transport apparatus for transporting the wash items to be treated in the respective treatment zones of the conveyor dishwashing machine
Implementation Method 4
at least one drying zone which is connected downstream of the at least one final rinse zone and in which the wash items to be treated in the conveyor dishwashing machine are dried
Data Source
AI summary
A conveyor dishwashing machine (1) has at least one washing zone (7), and at least one final rinse zone (8) which is connected downstream (as viewed in the transport direction (T) of the wash items) of the at least one washing zone (7). The conveyor dishwashing machine (1) has a transport apparatus for transporting the wash items through the treatment zones (6, 7) of the conveyor dishwashing machine (1) so that the wash items are situated at least in regions in a washing plane (5) which runs horizontally. The washing plane (5) is configured as a main washing plane, and there is at least one additional washing plane (6) in at least one of the treatment zones (7, 8) of the conveyor dishwashing machine (1), in which additional washing plane (6) wash items can be treated.