Asphalt Rubber Viscosity Control Using Shearing and Discharge Current
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Solution Overview
Problem
The viscosity of asphalt rubber is difficult to stabilize and control in real-time, especially during urgent production tasks, affecting the quality of asphalt mixtures and paving processes due to the lack of accurate detection and adjustment methods.
Innovation Solution
A method and device that utilize shearing and discharging currents to accurately control the viscosity of asphalt rubber by correlating these currents with the material's viscosity, allowing for timely adjustments to meet preset viscosity requirements, incorporating a shearing machine, discharging pump, and finished product storage equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional viscosity detection methods are used for asphalt rubber, then manual detection can be performed, but the detection time is long and the viscosity control is not stable in real-time production
Solution Approach 1:
The patent replaces traditional mechanical/manual viscosity detection methods with an electrical measurement system. By measuring the electrical current consumed by the shearing machine and discharging pump, the system indirectly determines viscosity without manual intervention, achieving both high accuracy and real-time detection capability
Solution Approach 2:
The patent introduces electrical current as an intermediary parameter to measure viscosity. Instead of directly measuring viscosity properties, the system measures the current consumed by motors during shearing and discharging operations, which correlates with viscosity, enabling indirect but accurate real-time measurement
2Manufacturing precision
If real-time viscosity adjustment is implemented, then the viscosity control accuracy is improved, but the production process complexity increases
Solution Approach 1:
The patent implements a feedback control system where the measured current values are continuously compared against reference values, and adjustments are automatically made to the processing parameters. This closed-loop feedback mechanism maintains high viscosity control accuracy while automating the adjustment process
Solution Approach 2:
The system performs self-adjustment by automatically modifying processing parameters based on current measurements. The control system independently determines when viscosity deviates from targets and applies corrections without external intervention, simplifying the overall control architecture
3Productivity
If current-based viscosity control is implemented, then the viscosity detection speed is improved, but the system requires additional monitoring equipment
Solution Approach 1:
The patent makes existing equipment multi-functional by using the shearing machine and discharging pump not only for their primary processing functions but also as measurement devices. The current consumed by these machines serves dual purposes: driving the processing operation and providing viscosity measurement data
Solution Approach 2:
The existing processing equipment serves itself by providing measurement data through its own operational parameters. The motors' current consumption during normal operation directly indicates viscosity levels, eliminating the need for separate dedicated measurement devices
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
This approach improves the accuracy and stability of asphalt rubber production by enabling real-time viscosity control, reducing manual detection time, and ensuring consistent product quality through double-current control mechanisms.
Implementation Method 1
obtaining a shearing current, and determining whether the shearing of the processed asphalt rubber is completed according to the shearing current
Implementation Method 2
obtaining a discharging current, and obtaining the viscosity of the pumped asphalt rubber according to the discharging current and the viscosity-discharging current correlation relationship
Data Source
AI summary
A method and device for controlling viscosity of asphalt rubber based on a current variation are provided. The method includes processing asphalt rubber raw materials with a first preset proportion, and shearing the processed asphalt rubber; obtaining a shearing current, pumping and discharging the sheared asphalt rubber; obtaining a discharging current, and obtaining the viscosity of the pumped asphalt rubber according to the discharging current and the viscosity-discharging current correlation relationship. The method includes comparing the viscosity with a preset viscosity; outputting the pumped asphalt rubber as finished asphalt rubber when the viscosity is equal to the preset viscosity. The method includes adjusting the viscosity according to the discharging current. Double-current control is adopted, so that the whole-process control of the processing viscosity of the asphalt rubber is realized, and the control accuracy of the viscosity is improved.