Raw coal ash detection device and method

Abstract

The invention discloses a raw coal ash detection device and method, and the detection device comprises a mounting base component, a weight detection component, a sample injection component, a sample output component and a host computer, wherein the weight detection component is installed on the mounting base component; the host computer is respectively connected to the weight detection component,the sample injection component and the sample output component; and the weight detection component comprises a cantilever beam load cell, a sample holder, a sample crucible, a heating mechanism and ahorizontal movement mechanism. During the raw coal flotation process of the raw coal ash detection device provided by the invention, the raw coal is transported to the weight detection component by using the sample injection component, and the weight detection module first performs high temperature heating operation on the raw coal, detects the change in the weight of the raw coal, and compares with the weight of the raw coal before the high temperature heating, so as to detect the ash of the raw coal in the flotation process in real time, thereby realizing automatic closed-loop control and improving the coal quality after flotation.

Description

technical field [0001] The invention relates to the technical field of raw coal detection, in particular to a raw coal ash detection device and detection method. Background technique [0002] Ash content is an important technical index in coal. The international standard ISO1171-2010 stipulates the determination standard of raw coal ash content. The determination process of this international standard takes a long time. [0003] The ash content in coal refers to the proportion of the remaining weight of a certain weight of raw coal to the original weight after burning a certain weight of raw coal to the original weight under certain conditions. It is one of the important physical indicators affecting the combustion characteristics of coal. physical properties. The current standard detection methods for coal ash mainly include ignition weighing method, natural radioactivity method, gravity measurement method, image processing ash measurement method and so on. Among them, th...

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Problems solved by technology

However, due to the lack of automatic and rapid detection devices for ash content in flotation tailings, automatic closed-loop control cannot be formed. As a result, in the flotation process of coal mines, it is necessary to adjust the dosage of coal slime according to the coal quality according to the experience of the workers on the job, which cannot be truly realized. Automatic control and dosing of flotation process

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