Coal on-line analyse equipment based on laser induced spectral and nerve network technology

Abstract

An on-line analyzing and detecting device of coal quality is prepared as shining sample to be analyzed by laser to generate induced light spectrum; collecting said spectrum by CCD image transducer and image collection control circuit and calculating to obtain vector E of character element content in raw coal by signal processor; sending vector E into BP neural network for carrying out conversion to obtain heating value, water content, ash content, volatile composition and fixed carbon of raw coal; utilizing neural network to predict slagging index and temperature of ash melted point of raw coal.

Description

1. Technical field [0001] The invention belongs to the field of automatic measurement technology and the field of application of artificial intelligence technology, in particular to an instrument and system for elemental analysis of coal quality in industrial production process and on-line measurement of industrial analysis indexes. 2. Background technology [0002] With the development of the national economy, the consumption of raw coal has continued to increase. In the past two years, the supply of coal resources in the country has been tight, especially the coal used for electric power is in an all-round emergency. Coal supply is increasingly market-oriented and diversified, resulting in increased fluctuations in coal quality, miscellaneous coal types, and increased difficulty in controlling coal quality into the furnace, which makes the coal fired by the boiler deviate from the designed coal type, and the stable combustion of the boiler is damaged, resulting in obvious e...

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Problems solved by technology

[0010] The problem existing in the existing technology is that the sampling system is difficult to adapt to different industrial environments. For example, in the process of conveying by belts, pipelines, wind power, automobiles and other transportation machinery, it is necessary to replace the sampling device according to different transportation machinery in order to meet the requirements of automatic analysis. Require

Optical lenses and mirrors are used in laser spectrum analysis related equipment. When there is vibration, slight changes in the positions of optical lenses and mirrors will have a greater impact on the measurement results, thus affecting the normal use of the equipment

In addition, in the process of industrial production, operators are generally concerned about the industrial analysis results of raw coal. Due to the change of coal types, it is difficult to use a unified formula to express the conversion from elemental analysis to industrial analysis results. The existing technical solutions do not provide operators The required industrial analysis results limit the use of this type of equipment

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