Online rapid detection system and analysis and detection method for grain composition analysis of spiral-flow type machine-made sand

Abstract

The invention relates to the field of weighing equipment, in particular to a spiral-flow type machine-made sand grain grading analysis on-line rapid detection system and an analysis and detection method. The objective of the invention is to solve the problems of poor identification efficiency and poor identification precision of weighing equipment in the prior art. The device comprises a discharging control device, a rotary material scattering device, a sand material grading and collecting device, a sand material grading and weighing device and a control system which are mounted in an outer frame, and the rotary material scattering device rotates at a constant speed to throw materials after receiving quantitative blanking of the discharging control device so as to realize grading in the sand material grading and weighing device; and finally, rapid detection is realized under the cooperation of a control system. The method has the advantages that a pure physical detection mode is adopted, the detection result is quantitative data, the measured mass of the sand materials with different particle sizes is equivalent to the grading screen residue of square hole screens with different pore diameters in the national standard, and the particle grading curve of the machine-made sand can be directly drawn by utilizing the detection result.

Description

technical field [0001] The invention relates to the field of weighing equipment, in particular to an on-line rapid detection system and detection method for gradation analysis of swirl-type machine-made sand particles. Background technique [0002] Sand is the main material for the production of various types of concrete. For a long time, the source of construction sand is mainly natural sand such as river sand. Due to successive years of mining, natural sand resources are increasingly scarce, and the mining of natural sand has brought about a series of environmental problems. The mining of natural sand has been more restricted, and it has become inevitable for machine-made sand to replace natural sand. Due to the irregular mining of aggregate mines and the substandard production process of machine-made sand, the quality of machine-made sand is often poor and cannot meet the requirements of the construction industry. It is an ideal solution to replace natural medium sand w...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of poor recognition efficiency and poor recognition accuracy of weighing equipment in the prior art, and provide a method that uses centrifugal force and gravity to separate machine-made sand particles according to their particle size under the action of swirling flow. A test method and a detection instrument for realizing the method, which are mainly used for on-line rapid detection of particle gradation of machine-made sand in the production process

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