Vibration Metering Slide for High-Pressure Roll Press Feeder
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Solution Overview
Problem
High-pressure roll presses face inefficiencies due to non-uniform material distribution and air pockets, leading to reduced comminution performance and uneven operation, as existing vibration devices like concrete vibrators are prone to wear and fail to ensure continuous, vibration-free operation.
Innovation Solution
A vibration device integrated with the metering slide directs vibration energy into the compaction zone, fluidizing the milling material by increasing its density and improving flow, with adjustable fin-shaped extensions and feedback-controlled energy input to optimize fluidization and extend device lifespan.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If vibration rods are used in the feeder device to fluidize the milling material, then the material flow and density are improved, but the device is prone to wear and bending, resulting in short service life
Solution Approach 1:
The invention extracts the vibration function from separate vibration rods and transfers it to the metering slide, which is an existing component. The metering slide is equipped with a vibration device that directs vibration energy into the compaction zone, eliminating the need for separate vibration rods that are prone to wear and bending.
Solution Approach 2:
The metering slide is given multiple functions: it continues to perform its original function of metering and directing the milling material, while also serving as a vibration device through the integrated vibration mechanism. This multi-functionality eliminates the need for separate vibration rods.
2Manufacturing precision
If feedback control is used to vary the supply of milling material to configure a constant bulk material cone, then uniform impingement of the roll nip is improved, but air pockets and non-uniform grain distribution cannot be sufficiently homogenized
Solution Approach 1:
The vibration device performs preliminary action by fluidizing the milling material in the compaction zone before it reaches the roll nip. This preliminary fluidization action homogenizes the material composition and removes air pockets, preparing the material for uniform impingement on the roll nip.
Solution Approach 2:
The invention applies mechanical vibration directly to the milling material in the compaction zone through the metering slide. The vibration energy fluidizes the material, promoting uniform grain distribution and eliminating air pockets, thereby achieving homogeneous material composition that feedback control alone cannot accomplish.
3Productivity
If the milling material is non-homogeneously mixed with air, then the material can divert into air space and evade high pressure, but this causes reduced comminution performance and uneven operation with vibrations
Solution Approach 1:
The vibration device generates mechanical vibration that fluidizes the milling material in the compaction zone, causing air pockets to escape and ensuring homogeneous mixing of material and air. This prevents material from diverting into air spaces and evading high pressure, thereby maintaining consistent comminution performance and smooth operation.
Solution Approach 2:
The invention changes the physical state parameters of the milling material by applying vibration energy, transforming it from a static, air-containing bulk material into a fluidized state with improved density and homogeneity. This parameter change ensures consistent material delivery to the roll nip, eliminating the harmful effects of air pockets.
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 enhances material flow and density, reducing air pockets and vibrations, leading to smoother operation and increased comminution efficiency with reduced wear on equipment, ensuring continuous and efficient high-pressure roll press operation.
Implementation Method 1
a vibration device, with the aid of which vibration energy is directed into the compaction zone
Implementation Method 2
fluidizing the milling material by increasing its density and improving flow
Data Source
AI summary
A high pressure roll press has two counter-rotating rolls configuring a roll nip through which milling material passes and is comminuted under high pressure by forming a fracture in a milling material structure in the roll nip. A feeder device feeds the milling material homogeneously onto the roll nip. The volume of the fed milling material configures a compaction zone, which reaches from approximately the center of the roll nip to just beyond the center of the roll nip. A vibration device for pre-compressing the milling material is arranged above the compaction zone, reaching into the compaction zone. A metering slide is arranged within the feeder device to set the feeding location and the feeding quantity of the milling material onto the roll nip. The vibration device is connected to the metering slide, wherein the metering slide conducts the vibration energy of the vibration device into the compaction zone.