Rotating Filter Basket Wastewater Cleaning Mechanism
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Solution Overview
Problem
Existing wastewater cleaning technologies are not efficient for large-scale, low-maintenance operation, particularly in cleaning large quantities of wastewater from bodies of water and ballast water tanks, and require frequent maintenance.
Innovation Solution
A filter arrangement with a cylindrical housing containing multiple concentrically arranged filter units, each with a rotating filter basket and a cleaning unit comprising a nozzle module and suction module, allowing for continuous cleaning during operation and efficient filtration of wastewater through radial flow, utilizing pressurized water and air for effective dirt removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional wastewater cleaning technologies are used, then basic filtration is achieved, but maintenance frequency increases and operational efficiency decreases
Solution Approach 1:
The system performs preliminary cleaning actions by continuously spraying cleaning solution onto the filter screen during operation, preventing debris accumulation before it causes blockages or requires maintenance shutdowns
Solution Approach 2:
The filter system cleans itself through an automated mechanism where a spray device delivers cleaning solution to the filter screen, and a suction device removes the loosened debris, eliminating the need for external maintenance intervention
2Productivity
If filter baskets are made stationary for simple structure, then manufacturing is easier, but cleaning efficiency and continuous operation capability are reduced
Solution Approach 1:
The filter basket is made rotatable rather than stationary, allowing it to be rotated into different positions relative to the spray and suction devices, enabling continuous cleaning operation without stopping the filtration process
Solution Approach 2:
The rotating filter basket serves multiple functions: it filters wastewater during rotation, presents different surfaces to the spray device for cleaning, and allows debris removal through the suction device, combining filtration and cleaning operations in a single mechanism
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
Enables efficient and continuous cleaning of large quantities of wastewater with reduced maintenance needs, ensuring effective filtration and cleaning of wastewater from various sources, including bodies of water and ballast tanks, by rotating filter baskets and using pressurized water and air for efficient dirt removal.
Implementation Method 1
a spray device (31, 37), in particular a high-pressure spray device, for spraying water or a cleaning solution onto the filter screen (21)
Implementation Method 2
a suction device (31, 37), in particular a high-pressure suction device, for loosening debris accumulated on the filter screen (21) and for removing the loosened debris
Implementation Method 3
at least one filter unit (20), in particular two filter units (20), with a filter basket (21) each
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a filter arrangement (1) for cleaning wastewater, comprising a housing (2), at least one filter unit (20) arranged in the housing (2) with a cylindrical filter basket (21), rotationally symmetric to a filter axis (22), and at least one cleaning unit (30), wherein the filter basket (21) is rotatable relative to the cleaning unit (30) and/or the cleaning unit (30) is rotatable relative to the filter basket (21) around the filter axis (22), wherein the cleaning unit (30) comprises: a nozzle module (31) with a multitude of nozzle units (33), designed to spray water onto the filter basket (21) to dissolve dirt, and a suction module (37) opposite the nozzle module (31), wherein the filter basket (21) is arranged between the nozzle module (31) and the suction module (37) and the suction module (37) is designed to suck off the mixture of sprayed water and dissolved dirt.