Ceramic Powder Feeding and Compaction Plant
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Solution Overview
Problem
Existing plants for manufacturing ceramic products face issues with clogging in powder feeding and metering devices due to gravity-fed systems, and deformation of ceramic materials during processing, which can compromise the aesthetic appearance of slabs and tiles.
Innovation Solution
A method and plant that includes a feeding system with internal separator baffles and micro-metering devices equipped with nozzles and powder removal apparatuses to prevent clogging, and a conveying system with a closed loop conveyor belt to maintain surface chromatic effects and prevent powder dispersion, along with controlled accumulation and compaction to ensure uniform thickness and resolution of veining patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a gravity-fed system is used for feeding and metering ceramic powders, then the system is simple in structure and easy to operate, but it is prone to clogging and malfunctions when handling large amounts of powder in limited time
Solution Approach 1:
The feeding system is divided into multiple independent feeding devices, each equipped with separator baffles that segment the powder flow path. This segmentation prevents clogging by distributing powder flow across multiple channels rather than a single path, while maintaining the simplicity of gravity-fed operation.
Solution Approach 2:
Separator baffles are introduced as intermediary elements within the feeding devices. These baffles act as mediators that guide and distribute powder flow, preventing direct contact between large powder volumes that cause clogging, while still allowing gravity to perform the feeding function.
2Productivity
If ceramic powders are compacted and processed through multiple devices, then the manufacturing process is efficient and productive, but the ceramic material undergoes deformations and alterations that compromise the aesthetic appearance of the final product
Solution Approach 1:
The system performs preliminary distribution of ceramic powders with precise control over powder flow and deposition before compaction. By establishing the correct powder layout and chromatic effects in advance, the system prevents deformations during subsequent processing, maintaining aesthetic appearance while ensuring efficient production.
Solution Approach 2:
The feeding and distribution system is designed to be dynamic and adaptive, adjusting powder flow rates and distribution patterns in real-time. This dynamic control ensures that powders are deposited with precise positioning and orientation, preventing deformations during compaction and maintaining the integrity of veining patterns and surface effects.
3Manufacturing precision
If a closed loop conveyor belt is used to convey and deposit powders, then surface chromatic effects are maintained and powder dispersion is prevented, but the device complexity increases
Solution Approach 1:
The conveying and depositing functions are merged into a single closed loop conveyor belt system. This integration eliminates the need for separate conveying and deposition devices, reducing overall system complexity while maintaining precise control over powder distribution and preserving surface chromatic effects throughout the process.
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 prevents clogging and material deformation, enhancing the aesthetic appearance and functionality of ceramic products by ensuring consistent powder distribution and compaction, thereby improving the quality of slabs and tiles.
Implementation Method 1
it can be subject to clogging. Another drawback of the known plants for manufacturing ceramic products is then due to the fact that the ceramic material to be processed, being initially formed by more or less compacted ceramic powder, can undergo deformations and/or alterations within the various devices of the system
Implementation Method 2
each metering device (14) is provided with a nozzle (40) configured to divide said ceramic powders and to gravity drop said ceramic powders along a substantially vertical feeding direction (A)
Implementation Method 3
said first layer (L) of powdered ceramic material is then accumulated and compacted by means of at least one accumulation and compaction device (20) so as to form a second layer (CL) of compacted ceramic powders
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
A method for manufacturing ceramic products (T) is described, sequentially comprising the steps of: feeding a mixture of ceramic powders, micro metering the ceramic powders by means of a metering device (14), dispensing and depositing the powders on a transport device (18), accumulating and compacting the powders by means of an accumulation and compaction device (20), pressing the compacted ceramic powders (CL). The feeding step comprises a sub-step of feeding the ceramic powders along inclined feeding directions (A1, A2, A3), so as to relieve the vertical load of the powder weight on the metering device (14). The micro metering step comprises a sub-step of removal of any powders not meeting quality criteria. The dispensing and depositing step comprises a sub-step of separating the ceramic powders along a plurality of longitudinal channels, parallel to the feeding direction (B) of the transport device (18), to avoid dispersion by falling of the ceramic powders. This separation sub-step is implemented by a transport device (18) in the form of a conveyor belt whose surface comprises longitudinal protrusions (44) interspersed by longitudinal grooves (46). The accumulation and compaction step comprises a sub-step of dynamic variation of the accumulation and compaction direction (C) with respect to a substantially vertical plane, so as to control the formation of chromatic effects in the thickness of the compacted ceramic powders. A plant (10) for manufacturing ceramic products (T) by implementing the aforementioned method is also claimed.