Circular Plate Filter Press Chain Pulling to Prevent Plate Rebound
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Solution Overview
Problem
Existing filter presses face inefficiencies due to the high operating frequency and damage of plate pulling devices, leading to gaps between filter plates and wasted filter area, which results in reduced production capacity and increased costs.
Innovation Solution
A recessed plate filter press design that utilizes a chain-driven system with plate pulling devices featuring a snap-connected plate pulling hook and compression spring mechanism to cyclically pull and push filter plates together, minimizing gaps and enhancing the filter area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a chain-driven plate pulling device performs multiple reciprocating operations to grab and pull filter plates, then the filter press can achieve plate separation and cake unloading, but the operating frequency is high and the device is easily damaged
Solution Approach 1:
The patent transforms the traditional reciprocating motion into continuous circular motion. The plate pulling device rotates continuously around the main beam, with plates being grabbed and pulled during the rotation cycle. This dynamic transformation eliminates the need for repeated reciprocating operations, reducing operating frequency and device wear while maintaining productivity.
Solution Approach 2:
The patent implements periodic plate engagement and disengagement during the continuous circular rotation. Plates are grabbed at specific positions during rotation and released at other positions, creating a periodic action pattern that achieves separation and unloading functions while maintaining continuous device motion, thereby reducing overall operating frequency.
2Productivity
If the plate pulling device releases the filter plate at the end of pulling, then the filter plate can be unloaded, but the filter plate rebounds creating a gap of 5 mm-10 mm between plates
Solution Approach 1:
The patent applies preliminary counteracting force through the compression spring before the plate is fully released. The spring maintains continuous gentle pressure on the plate throughout the circular motion cycle, preventing rebound before it occurs. This preliminary anti-action ensures plates remain in close contact without gaps, improving filter area utilization and positioning accuracy.
Solution Approach 2:
The compression spring acts as a cushioning element that absorbs release energy before the plate can rebound. By positioning the spring to engage continuously during the circular motion, the system cushions the plate against sudden release forces, maintaining plate contact and eliminating gaps between plates.
3Manufacturing precision
If the hydraulic cylinder operating stroke is increased to compress the filter plate and close the gap, then plate contact is restored, but production costs and operating time are wasted
Solution Approach 1:
The patent enables the plate pulling device to automatically maintain plate contact through its own circular motion mechanism. The continuous rotation with integrated spring cushioning allows the device to self-regulate plate positioning without requiring additional hydraulic compression strokes, eliminating time loss and reducing overall operating cycle time.
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 design reduces plate rebounding and increases the processing capacity of the filter press by allowing more filter plates to be accommodated within the same length, thereby improving operational efficiency and reducing wear on components.
Implementation Method 1
one end of the compression spring is connected with the plate pulling hook, the other end of the compression spring is connected with the plate pulling frame
Data Source
AI summary
A recessed plate filter press for circularly pulling and pushing plates includes a main beam, a thrust plate, multiple filter plates, multiple filter plate handles, multiple plate pulling devices, a push plate, a depressing frame, a chain and multiple sprockets, the thrust plate is arranged on the main beam, and the multiple sprockets are arranged at both ends of the main beam, the chain is installed on the multiple sprockets, the multiple filter plate handles are arranged on both sides of the multiple filter plates, the multiple plate pulling devices are arranged apart on the chain, and the depressing frame is arranged on the push plate, and a plate pulling hook of each plate pulling device is snap-connected with each filter plate handle.