Curved Heat-Conducting Filter Plate for Faster Cake Drying

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Solution Overview

Problem

Existing heating filter plates fail to meet customer requirements for shorter drying periods and reduced energy consumption.

Innovation Solution

A novel heating filter plate design with a heat-conducting panel featuring a bending structure, increased contact area, and improved heat-conducting efficiency, combined with a filtrate and heat-conducting medium system for efficient heat transfer and discharge.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a conventional heating filter plate with a flat heating surface is used, then the structure is simple and easy to manufacture, but the drying period is long and energy consumption is high

Engineering Contradiction:
Improvedrying periodVSAvoidheating structure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The heating surface is transformed from a flat plane to a curved bending structure that conforms to the filter cake surface. This curvature increases the contact area between the heating surface and the filter cake, improving heat transfer efficiency and shortening the drying period while maintaining reasonable structural complexity

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The heating surface is extended from a two-dimensional flat plane into a three-dimensional curved surface that adapts to the filter cake geometry. This dimensional transformation allows the heating surface to wrap around and contact more of the filter cake surface, significantly increasing effective heating area without proportionally increasing device complexity

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Use of energy by stationary object

If a conventional heating filter plate with limited contact area is used, then the structure is simple, but the heat-conducting efficiency is low and energy consumption is high

Engineering Contradiction:
Improveenergy consumptionVSAvoidheating structure complexity
Core Design Contradiction:
Use of energy by stationary objectVSDevice complexity

Solution Approach 1:

The curved bending structure of the heating surface maximizes contact with the filter cake, reducing energy loss to the environment and improving heat utilization efficiency. The curvature allows the heating surface to maintain intimate contact with the filter cake surface, minimizing thermal gaps and reducing overall energy consumption

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The physical geometry of the heating surface is changed from flat to curved, transforming the contact parameters between the heating surface and filter cake. This parameter change increases the contact area and improves heat transfer coefficients, leading to lower energy consumption for the same drying task

Inventive Principle:
Principle #35Parameter changes

3Productivity

If the heating surface contact area is increased, then the drying efficiency is improved, but the structural complexity increases

Engineering Contradiction:
Improvedrying efficiencyVSAvoidheating structure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The bending structure achieves increased contact area through controlled curvature rather than through complex multi-component assemblies. The continuous curved surface provides extensive contact with the filter cake while maintaining a relatively simple monolithic structure, balancing drying efficiency with structural simplicity

Inventive Principle:
Principle #14Spheroidality (Curvature)

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 shortens drying periods and decreases energy consumption by enhancing heat-conducting efficiency and structural strength, while maintaining smooth filtrate and heat medium flow.

Implementation Method 1

the heat-conducting panel comprises a panel main body part of an annular structure... heat is transferred to a filter cake in the filter chamber through the heat-conducting panel to achieve drying

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP3939684B1A novel heating filter plate
Publication Date: 2025.10.08 ZHEJIANG FUJIE ENVIRONMENTAL PROTECTION EQUIP CO LTD
  • EP3939684B1 patent drawingFigure 1
  • EP3939684B1 patent drawingFigure 2
  • EP3939684B1 patent drawingFigure 3~4

AI summary

Provided is a heating filter plate, including: a core panel (1), filter frames (2) and heat-conducting panels (3) fixedly arranged on the front and back sides of the core panel (1), filter chambers (4) formed by the filter frames (2) and the heat-conducting panels (3), a feed hole (5) running through the core panel (1) and the heat-conducting panel (3), and a filtrate through-hole (6) running through the core panel (1) and the filter frame (2); a heat-conducting cavity (7) is formed between the heat-conducting panel (3) and the core panel (1); the heat-conducting panel (3) has a plurality of concave parts (31) recessed toward the core panel (1) and a heat-conducting main body part (32) connected between two adjacent concave parts (31); the width of the heat-conducting main body part (32) is greater than the width of the concave part (31); the heat-conducting panel (3) has a filtrate chute (33) in communication with the filter chamber (4) on the side of the concave part (31) facing the filter chamber (4); and a heat-conducting medium chute (34) constituting part of the heat-conducting cavity (7) is formed on the side of the heat-conducting main body part (32) facing away from the filter chamber.