Filter Press Spiral Vibration Cake Unloading
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Solution Overview
Problem
Conventional filter press systems face challenges in efficiently unloading filter cakes due to complex and costly pneumatic vibration devices, which result in low filtration efficiency and economic losses, especially when dealing with filter cakes that adhere to the filter cloth.
Innovation Solution
A filter press with a spiral vibration cake unloading device featuring a vibration shaft with protrusions that rotate to dislodge filter cakes, combined with an oil cylinder and chain mechanism for controlled plate separation, reducing the complexity and cost of the system while enhancing cake removal efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complete set of pneumatic vibration device is installed above the filter plates to hammer down the filter cakes, then the filter cakes can be unloaded after filtration is completed, but the structure becomes complex, failure rate increases, and maintenance becomes inconvenient
Solution Approach 1:
The patent extracts the essential vibration function from the complex pneumatic vibration device and implements it through a simple rotating shaft with protrusions that directly contact and vibrate the filter plates. This eliminates the need for complicated pneumatic components while maintaining the cake unloading capability.
Solution Approach 2:
The invention replaces expensive, complex pneumatic vibration devices with a simple, inexpensive rotating shaft mechanism. The shaft with protrusions is a basic mechanical component that is much cheaper and easier to replace if needed, reducing both initial investment and maintenance costs.
2Device complexity
If the plate puller pulls apart filter plates one by one or in groups to unload filter cakes, then the structure is simpler, but the filter cakes often adhere to the filter cloth and are difficult to fall
Solution Approach 1:
The patent applies mechanical vibration through the rotating shaft with protrusions that contact and vibrate the filter plates during the pulling process. This vibration breaks the adhesion between filter cakes and filter cloth, enabling complete cake removal even when plates are pulled one by one or in groups.
Solution Approach 2:
The vibration action is applied preliminarily during the plate pulling process itself, rather than as a separate subsequent step. The protrusions on the rotating shaft vibrate the plates as they are being pulled apart, preparing the filter cakes for easy detachment before the plates are fully separated.
3Reliability
If conventional pneumatic vibration devices are used to hammer down filter cakes, then cake unloading is achieved, but the components are cumbersome and costly, resulting in low filtration efficiency and economic losses
Solution Approach 1:
The invention replaces expensive, complex pneumatic vibration devices with a simple, inexpensive rotating shaft mechanism. The shaft with protrusions is a basic mechanical component that is much cheaper to manufacture and install, directly reducing system cost while maintaining cake removal effectiveness.
Solution Approach 2:
The rotating shaft with protrusions is driven by the existing plate puller mechanism itself, utilizing the motion already present in the system. This self-service approach eliminates the need for separate expensive vibration motors or pneumatic systems, reducing overall equipment cost.
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 solution effectively reduces the operational costs and improves filtration efficiency by using a simple and flexible vibration cake unloading device that vibrates filter cakes down from the plates, overcoming adherence issues and simplifying maintenance.
Implementation Method 1
the driving component drives the vibration shaft to rotate around its own axis, the protrusions on the vibration shaft collide with the filter plates to assist in unloading
Implementation Method 2
the piston rod is connected with a compression plate to drive the plurality of filter plates to be pulled apart for the first time to unload the cake
Data Source
AI summary
A filter press includes a frame, a power component and a plurality of filter plates driven by the power component to move to and fro along the frame to be at a pressure filtration position and an unloading position; a vibration cake unloading device includes a driving component and a vibration shaft longitudinally arranged; and protrusions are provided on an outer circumferential wall of the vibration shaft, when the filter plates are located at the unloading position, in the process that the driving component drives the vibration shaft to rotate around its own axis, the protrusions on the vibration shaft collide with the filter plate to assist in unloading. The vibration shaft has a simple structure, which can greatly reduce the cost, and the vibration cake unloading device is flexible in use. A filter press of spiral vibration cake unloading by pulling apart the filter plate twice is further provided.