Method and system for quality control of mixture mixing

Abstract

The invention discloses a method and a system for controlling the mixing quality of a mixture. Firstly, the rotation speed of the mixer is adjusted within a specified range, and the specified range is the range of the rotation speed determined in actual production; the torque of the stirring shaft is collected in real time, and the stirring power at different stirring times is calculated; Filter and process the collected multiple power data and then linear fit to solve the slope of the fitted line; judge the number of peaks and troughs that appear in the data through the slope change of adjacent fitted lines, and judge the time period when the second trough appears when the mixing quality reaches the best time period. The method and the system can avoid artificial experimental errors due to automatic detection by common equipment. And it avoids the short mixing time and poor quality of the mixture; the long mixing time increases the construction cost.

Description

technical field [0001] The invention belongs to the technical field of automatic control, relates to a mixture mixing quality control technology, in particular to a mixture mixing quality control method and system. Background technique [0002] During the mixing process, the mixer achieves the purpose of uniform mixing and easy construction by extruding, shearing and turning the mixture. The quality of concrete mixing is mainly characterized by workability, which refers to the performance of fresh concrete that is easy to operate during construction and can obtain uniform quality and compact molding. The quality of concrete mixing will have a direct impact on the smoothness, compaction, strength and other indicators of the road surface. [0003] At present, in engineering practice, the slump method and Viber consistency method are used to test the workability of concrete construction. Although the operation of the two is simple, there are some shortcomings: first, the expe...

AI Technical Summary

Problems solved by technology

Although the operation of the two is simple, there are some shortcomings: first, the experimental results brought about by personnel with different levels of proficiency are different; second, the detection process requires the mixer to be stopped and unloaded, which is time-consuming and labor-intensive; third, it cannot be monitored in real time concrete mixing quality

Images