Filter Press Electric Actuator Retrofitting for Contamination Control
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Solution Overview
Problem
Conventional filter presses rely on hydraulic systems for compression and transport, which are inefficient, environmentally harmful, and require large quantities of oil, leading to contamination and increased operational costs.
Innovation Solution
A retrofitting kit that replaces hydraulic systems with an electrically operated compression and transport system using a planetary screw assembly and rack and pinion drive assembly, eliminating the need for hydraulic oil and improving control and speed of filter plate operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If hydraulic systems are used for compression and transport, then closing force and transport capability are achieved, but environmental contamination and operational costs increase
Solution Approach 1:
The patent replaces the hydraulic mechanical system with an electrical drive system. The electrical actuator directly drives the compression and transport mechanisms, eliminating the need for hydraulic fluid and associated contamination risks while maintaining system reliability through precise electrical control.
Solution Approach 2:
The patent eliminates the hydraulic system entirely in favor of an electrical system. By removing the hydraulic fluid medium, the system avoids environmental contamination from oil leakage while achieving the necessary force and motion control through electrical actuators.
2Loss of substance
If hydraulic systems are used, then compression and transport functions are fulfilled, but oil consumption and operational costs increase
Solution Approach 1:
The electrical drive system replaces the hydraulic system, eliminating oil consumption entirely. The electrical actuator provides direct drive capability without requiring hydraulic fluid, thereby reducing substance loss while maintaining ease of operation through electrical control interfaces.
3Productivity
If hydraulic cylinders are used for transport, then displacement capability is achieved, but cycle time increases due to oil pumping requirements
Solution Approach 1:
The electrical actuator replaces the hydraulic cylinder, eliminating the need to pump oil during displacement operations. This direct electrical drive reduces cycle time by removing fluid delivery delays and improves energy efficiency by converting electrical energy directly to mechanical motion without hydraulic transmission losses.
4Device complexity
If hydraulic systems are used, then closing pressure is achieved, but system complexity and maintenance requirements increase
Solution Approach 1:
The electrical actuator replaces the complex hydraulic system while maintaining the capability to generate necessary closing pressure. This substitution reduces device complexity by eliminating hydraulic pumps, valves, and fluid management components, while the electrical motor provides direct force application for achieving required pressure levels.
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 electrically operated system reduces cycle time, conserves energy, and prevents contamination, while allowing for more flexible and efficient operation with adjustable speeds and increased reliability, making it environmentally sustainable and cost-effective.
Implementation Method 1
the compression system comprising at least one electrically operated compression actuator comprising a planetary screw assembly
Implementation Method 2
the transport system comprising at least one electrically operated transport actuator comprising a rack and pinion drive assembly
Data Source
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AI summary
The disclosure relates to a filter press for separating solid components from liquid components of a slurry, the filter press comprising a compression system coupled to a stationary pressure plate of the filter press, wherein the compression system comprises at least one electrically operated compression actuator comprising a planetary screw assembly, and a transport system coupled to a displaceable pressure plate of the filter press, wherein the transport system comprises at least one electrically operated transport actuator comprising a rack and pinion drive assembly, and wherein the compression system rigidly connects to the transport system so as to form, for each respective pair of compression actuators and transport actuators, a common actuator link which extends linearly from the stationary pressure plate to the displaceable pressure plate along the longitudinal dimension. The disclosure further relates to a method for controlling a filter press.