Vibrating Fabric Cleaning Device for Paper Machine
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Solution Overview
Problem
Current cleaning devices for wires or felts in paper machines face challenges such as high energy consumption for drying and difficulty in thoroughly removing pulp fibers within a short time, while dewatering and drying paper webs are also inefficient and costly.
Innovation Solution
A device for dewatering or cleaning fabrics in paper machines, which includes a contact portion for contacting the fabric, an air device for transporting air, and a vibration generator connected to the contact portion to cause vibrations during operation, enhancing the removal of water and pulp fibers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional cleaning devices are used to remove water from wires or felts, then the wires or felts can be dried, but high energy consumption is required and thorough cleaning is difficult to achieve
Solution Approach 1:
The patent applies mechanical vibration through a vibration generator that causes the contact portion to vibrate during operation. This vibration loosens water and pulp fibers from the fabric, enabling more efficient removal by the air device without requiring high energy consumption for drying
Solution Approach 2:
The patent uses pneumatic principles by employing an air device that transports air to or from the fabric through openings. The air device supplies or removes air through the openings, assisting in the removal of water and pulp fibers from the fabric surface
2Productivity
If conventional dewatering methods are used, then water can be removed from the paper web, but high energy consumption occurs during drying stages
Solution Approach 1:
The vibration generator causes the contact portion to vibrate, loosening water from the fabric and enabling more effective dewatering before drying stages, thereby reducing the energy required for subsequent heating and drying operations
Solution Approach 2:
The device performs preliminary dewatering by combining vibration-induced loosening with air transport to remove a significant portion of water before the paper web enters high-energy drying sections, reducing overall energy consumption
3Productivity
If cleaning devices operate for extended periods to thoroughly remove pulp fibers, then cleaning effectiveness improves, but the time available before paper web pickup is insufficient
Solution Approach 1:
The vibration generator provides intense vibrational action that rapidly loosens pulp fibers from the fabric surface, enabling thorough cleaning to be achieved within the short time available before the paper web is picked up again
Solution Approach 2:
The vibration generator operates continuously during the brief contact period to maintain constant vibrational action, ensuring maximum cleaning effectiveness is achieved within the limited time window before paper web pickup
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 device achieves more efficient dewatering and cleaning by loosening water and pulp fibers through vibrations, allowing for their effective removal by air, thereby reducing energy consumption and improving the efficiency of paper production.
Implementation Method 1
a vibration generator operatively connected to the contact portion and configured to cause a vibration of the contact portion during operation of the device
Implementation Method 2
an air device for transporting air to or from the fabric, the air device being operatively connected to at least one opening in the first side for supplying or removing air through the at least one opening
Data Source
AI summary
The present invention relates to a device for dewatering or cleaning a fabric in a paper machine, the device (1) comprising—a contact portion (2) arranged on a first side of the device (1) for contacting a fabric in a paper machine,—an air device (4) for transporting air to or from the fabric, the air device being operatively connected to at least one opening (3) in the first side for supplying or removing air through the at least one opening, and—a vibration generator (5) operatively connected to the contact portion and configured to cause a vibration of the contact portion during operation of the device. The invention also relates to a paper machine (100, 100′) comprising at least one such device.