Online detection system for density distribution of coal material

Abstract

The invention relates to an online detection system for density distribution of a coal material. The online detection system comprises a vibration sieve, a washing device, a hot air drying device, a flat plate chute, an image acquisition device and an upper computer, wherein the vibration sieve is used for obtaining the coal material, dispersing the coal material and filtering coal slurry; the washing device is arranged above the vibration sieve and is used for providing water pressure to wash the coal material on the vibration sieve; the hot air drying device is arranged above the vibration sieve and is used for drying the coal material and separating absorbed water vapor into hot air and water; the flat plate chute is obliquely arranged below the vibration sieve and the coal material which is dispersed and filtered from the vibration sieve enters the flat plate chute; the image acquisition device is vertical to the flat plate chute, is arranged above the flat plate chute and is used for acquiring an image of the coal material on the flat plate chute; and the upper computer is used for acquiring the image of the coal material, which is acquired by the image acquisition device, and analyzing the density distribution of the coal material according to the image. The online detection system for the density distribution of the coal material, provided by the invention, provides accurate coal material image information for the upper computer, and the density distribution of the coal material is convenient to analyze through a machine vision technology.

Description

technical field [0001] The invention relates to the field of coal sorting, in particular to an online detection system for coal material density distribution. Background technique [0002] Density distribution is one of the important separation indicators in the coal separation process, but the lack of real-time and effective coal density distribution detection methods restricts the development of coal preparation plant automation. At present, the traditional method of measuring the density distribution of coal materials is still based on the traditional floating and sinking test method, which has high precision but consumes manpower, material resources and time, and cannot be used to guide production in real time. The improved fast floating method of the coal preparation plant can speed up the estimation of the coal density distribution, but it still cannot achieve the purpose of real-time detection, and the measured data are not completely representative. In recent years,...

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Problems solved by technology

[0003] The present invention solves the technical problem that machine vision equipment is difficult to identify coal particles in the prior art and machine vision technology can only analyze the surface coal density distribution by providing an online detection system for coal material density distribution, so that the coal material to be detected The surface is clean, dry and distributed in a single layer, which greatly improves the on-site adaptability and detection accuracy of the coal density distribution online detection device, provides accurate coal image information for the host computer, and facilitates the analysis of coal density through machine vision technology distributed

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