Multi-target scanning type rapid sulfur detector

Abstract

The invention relates to a multi-target scanning type rapid sulfur detector. The rapid sulfur detector is composed of an excitation light source, a detector, a sample platform, an analyzer and a circuit output device, wherein the sample platform comprises a main disc, six sample boxes, motors, a gear and a bearing; on the condition of fixed points of irradiation, a computer is used for controlling the main disc and the six sample boxes to respectively do circular motion under the brake of the respective motors so as to realize multi-target multi-area scanning and reduce the influence of particle sizes and uniformities of samples; the excitation light source comprises a high-power X-ray tube, a collimator at the exit of the X-ray tube and an X-ray tube high voltage power supply; the detector comprises a silicon drift detector, a detector high voltage power supply, a load-sensitive pre-amplifier and a pulse shaping amplifier, and the silicon drift detector is arranged on the right side of the X-ray tube. The analyzer disclosed by the invention is a digital multi-channel spectrometer and is used for analyzing and treating original signals amplified by the amplifier and acquired by the detector and converting the original signals into energy spectrum for analysis, and finally the computer is used for data treatment and control.

Description

technical field [0001] The invention relates to a multi-target scanning type rapid sulfur measuring instrument, in particular to a multi-target scanning type rapid sulfur measuring instrument for analyzing the sulfur content in coal, which belongs to the field of element rapid analysis. Background technique [0002] The level of sulfur content in coal is an important index to evaluate the quality of commercial coal. On the one hand, it is a major influencing factor of coal quality pricing; on the other hand, for coal used for power generation, too high sulfur content will lead to corrosion of boiler tail flue. Moreover, due to the large amount of coal used for power generation, the sulfur in the coal produces sulfur oxides during the combustion process of the boiler, and is discharged into the atmosphere along with the flue gas, which greatly pollutes the surrounding environment, and in severe cases, it will form acid rain and affect people's normal life. , With the improve...

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Problems solved by technology

This method of measuring sulfur based on chemical analysis needs to burn at high temperature, so the measurement time is long, and the equipment is used at high temperature for a long time, and the reliability of the equipment is also low; because it needs to use chemical reagents, it will cause serious damage to the environment. Pollution, causing damage to the health of users; because it is manual operation, the labor intensity is relatively high, and human errors are also relatively large

[0004] Recently, some scholars have also proposed to use physical methods to measure sulfur. Most of them use radioactive sources as irradiation sources, or the detection equipment is proportional counter tubes, but there is radioactive pollution, and the measurement time and accuracy cannot meet the industrial requirements.

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