Grinding Roller Sensor Integration for Wear Monitoring
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Solution Overview
Problem
Existing monitoring systems for grinding rollers are susceptible to soiling and provide inaccurate temperature measurements due to the location of sensors outside the product space, and require the grinding installation to be stopped for precise wear measurement, compromising operational safety and efficiency.
Innovation Solution
Integrating sensors within the circumferential surface of the grinding rollers, connected to a data transmitter for contact-free data transmission, allowing for precise measurement of temperature, pressure, wear, and other parameters without interfering with the product flow and enabling continuous operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensors are arranged outside the circumferential surface of the grinding roller, then the optical system can detect the surface, but the system is extremely susceptible to soiling and measurement accuracy decreases
Solution Approach 1:
The sensor is integrated inside the circumferential surface of the grinding roller, nesting the sensing element within the roller structure itself. This allows the sensor to be positioned in close proximity to the measurement point without being exposed to the product space, thereby maintaining measurement accuracy while avoiding soiling from grindable material.
Solution Approach 2:
The circumferential surface of the grinding roller acts as an intermediary medium, conducting thermal energy from the roller core to the sensor located inside it. This thermal conduction pathway enables accurate temperature measurement without requiring the sensor to be exposed to the harsh product environment.
2Measurement precision
If wear measurement is performed with external devices, then measurement is possible, but the grinding installation has to be brought to a standstill
Solution Approach 1:
The sensor integrated inside the circumferential surface enables continuous monitoring of grinding roller conditions during operation. The measurement system remains active throughout the grinding process, eliminating the need to stop production for wear assessment and maintaining uninterrupted productive action.
Solution Approach 2:
The grinding roller itself serves as the measurement platform through its integrated sensor, eliminating the need for external measurement devices that would require installation and removal. The roller monitors its own condition continuously during normal operation.
3Ease of operation
If temperature sensors are arranged at a distance from the grinding roller, then the roller can operate normally, but the actual temperature of the circumferential surface differs considerably from the measured temperature
Solution Approach 1:
The temperature sensor is nested within the circumferential surface of the grinding roller, positioned in immediate thermal contact with the roller material. This eliminates the distance gap between sensor and measurement point, ensuring that the sensor records the actual temperature of the circumferential surface without significant deviation.
Solution Approach 2:
The sensor is positioned at the specific location where temperature measurement is most critical - within the circumferential surface itself. This local positioning ensures that the measurement reflects the actual thermal conditions at the measurement point rather than being influenced by thermal gradients over distance.
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
Enhances operational safety and measurement precision by reducing soiling susceptibility and allowing real-time monitoring of grinding roller conditions, improving the accuracy and reliability of processing operations.
Implementation Method 1
measure the temperature of the circumferential surface of a grinding roller with the aid of temperature sensors in a contact-free manner
Implementation Method 2
connected to a data transmitter for contact-free data transmission
Data Source
AI summary
Roller pairs for processing a product, containing two grinding rollers, wherein at least one roller contains at least one sensor for obtaining measured values that characterize a state of at least one of the rollers, in particular a state of a circumferential surface. The sensor has a data connection to a data transmitter designed to transmit the measured values to a data receiver in an contact-free manner. Additionally, a measuring device for insertion into a receiving opening of a roller body of a roller of a roller pair, a product-processing installation, in particular a grinding installation containing at least one roller pair, a method of operating a product-processing installation, and a method of converting and/or upgrading at least one roller body are disclosed.