Online detection device and online detection method for machine-made sand

Abstract

The invention discloses an online detection device and an online detection method for machine-made sand. The online detection device comprises a control module, a sampling module, a weighing module, adrying module, a sorting module, a dispersing module, an image collecting and analyzing module and a recycling module. The control module is in signal connection with the sampling module, the weighing module, the drying module and the sorting module respectively. Machine-made sand samples pass the weighing module, the drying module, the dispersing module, the image collecting and analyzing moduleand the recycling module downwardly sequentially along the vertical direction after being acquired by the sampling module, and information, such as particle shapes and diameters, of the returned machine-made sand samples is measured automatically. The online detection device and the online detection method have the advantages that rapid online detection of fineness and shape of the machine-made sand can be realized, grading conditions of the machine-made sand of a machine-made sand production line can be reflected timely, and economic loss caused by sand diameter disqualification of the machine-made sand is avoided.

Description

technical field [0001] The invention relates to the field of industrial detection, in particular to an on-line detection device and an on-line detection method for machine-made sand. Background technique [0002] Machine-made sand (or aggregate) is the main material of asphalt mixture and cement concrete, accounting for more than 75% of the volume and mass of concrete. Its characteristics are important for the rheological properties of concrete, the mechanical properties and durability of hardened concrete. influences. A good aggregate particle size distribution reduces the concrete bulk porosity, makes the concrete work better, has good stability and durability, and reduces the amount of cement slurry and reduces the cost of concrete. The particle shape characteristics also have a great influence on the characteristics of the aggregate. It is generally believed that the particle shape of the coarse aggregate is the best as a sphere or a cube. Conducive to pumping and cons...

AI Technical Summary

Problems solved by technology

This judgment method is mainly distinguished by the particle size of fine aggregate, which still belongs to the screening detection method, and cannot detect the particle shape of fine aggregate, and cannot meet the current production management needs.

[0005] At present, the particle size and shape detection methods of machine-made sand used in the existing technology all need to first sample the machine-made sand, and then carry out grain-by-grain detection and analysis of the samples, and the grain size and shape of the machine-made sand cannot be detected at the same time

This detection method is inefficient and not conducive to the automation of machine-made sand production

There is still a lack of an online automatic detection device that can simultaneously complete the detection of machine-made sand particle size and particle shape

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