Near-infrared on-line coal quality measurement device

Abstract

A near-infrared on-line coal quality measurement device solves the problems that the existing on-line detection method is easily interfered by system errors, influences measurement accuracy and harms a human body and the like. The near-infrared on-line coal quality measurement device is characterized in that a control cabinet is a sealed cabinet internally provided with an automatic temperature control unit comprising a temperature sensor and a refrigeration unit; a master control computer is employed for analysis and correction; a coal quality calculation unit based on a support vector machine regression network performs complicated nonlinear mapping on a near-infrared spectrum irradiated on pulverized coal in a sampling bottle to accomplish on-line coal quality analysis; and a near-infrared detection unit provides requirements of reference plate spectral data to effectively avoid a drift effect of a near-infrared light source. The device is reasonable in structural design, conveniently acquires and quickly transmits complicated mixed coal sample data, performs the on-line analysis rapidly, and measures accurately and reliably, and compared with the like products, the device significantly reduces the drift effect of the near-infrared spectrum, prevents environmental factors from interfering with the measured coal quality and improves the precision of real-time monitoring of coal components.

Description

technical field [0001] The invention relates to a coal quality measurement device, in particular to a near-infrared coal quality on-line measurement using a coal powder sampler, a near-infrared detector, a coal quality calculation module based on a support vector machine regression network, and an automatic temperature control component. The device is especially suitable for the on-line detection of coal quality in the power station, and is also suitable for real-time monitoring of coal quality components in other related places. Background technique [0002] During the "Twelfth Five-Year Plan" period, the planned scale of coal-fired power generation across the country is 300 million kilowatts. In 2015, my country's coal power installed capacity is expected to reach 960 million kilowatts. In 2020, the national power generation installed capacity will reach about 1.935 billion kilowatts, of which coal power will be 1.17 billion kilowatts. However, there is a common phenomenon...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a near-infrared coal quality on-line measurement device, which solves the problems of the existing on-line detection methods, such as being easily disturbed by system errors, affecting measurement accuracy, and endangering the human body. The collection of coal sample data is convenient, the transmission is fast, the online analysis is fast, and the measurement is accurate and reliable. Compared with similar products, it significantly reduces the drift effect of the near-infrared spectrum and avoids the interference of environmental factors on the measured coal quality, thereby greatly improving Real-time monitoring accuracy of coal composition

Images