Method and device for automatically recognizing coal types

Abstract

The invention provides a method and special device for rapidly determining coal ash content. The method comprises the following steps of: 1, inserting a quick ash measuring instrument into a coal pile and scanning the coal pile by using gamma photons; and 2, counting and analyzing energy scattered by surrounding coal piles by using a detector, finding the proportional relation between combustible components and incombustible components in coal, selectively analyzing the contents of metal elements with high orders in the incombustible components to determine a quantization model between scattered energy and coal ash, calculating the ash content of the coal by using energy according to a mathematical relation established by using the model, storing the quantization model in the form of parameter and automatically removing or modifying unreasonable or highly-deviated data, wherein the parameter can be automatically extracted for measuring when the same type of coal is detected for the next time. By adopting the method and device, the coal types can be correctly recognized and coal type parameter can be calculated and stored. The method and the device are easy to implement.

Description

technical field [0001] The invention relates to a method and a device for automatically identifying coal types. technical background [0002] Coal is widely used in industrial production and is called "industrial food". The quality of coal directly affects the pricing standards and economic interests of buyers and sellers, and also determines the quality of products produced by coal-using units. Among them, the ash content and calorific value of coal are important indicators to determine the quality of coal, and they are also very important inspection indicators in the process of coal quality testing. For many years, the coal quality testing department and laboratory personnel have been exploring and exploring how to measure the ash content and calorific value of coal quickly and efficiently. For now, coal ash detection is mainly through the combustion method, and the process includes sampling, sample preparation, and combustion. Sampling is to select multiple representativ...

AI Technical Summary

Problems solved by technology

When there are many coal samples and a large amount of coal is used, the task of coal quality laboratory personnel is heavy, and the ash content measurement results of coal samples are often unable to be provided in time

Generally, in this case, in order not to affect the production, it is usually only possible to expand the scale of the coal quality laboratory and purchase more traditional ash test instruments based on the principle of combustion

Moreover, different people often have relatively large differences in sampling and sample preparation processes under different conditions, artificially introducing laboratory measurement errors

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