X fluorescent multi-element analyser

Abstract

An X fluorescent multi-element analyzer contains an exciting source, an X light tube, a collimator above X light tube, an elementary color filter on front-end of collimator and light tube high-voltage providing energy to X light tube for exciting X-ray. Sample plate has a rotary plate, on which set a sample hole for placing tested sample. Sample hole locates on light path of X-ray calibrated by collimator and appears the same angle as collimator. Probe faces the sample hole positively to receive X fluorescence excited by X-ray. It has a proportional counter tube with a secondary color filter on front-end. A circuit output device connects with probe in series. In the invention, elementary color filter is copper foil and secondary color filter is siliceous film. The invention is a dispersing-type X fluorescent multi-element analyzer with on chemical and radiating pollution and has short measuring time, high precision, simple structure, stable safety and low cost.

Description

technical field [0001] The invention relates to an analyzer, in particular to an energy dispersive X-ray fluorescence multi-element analyzer used for analyzing the content of aluminum, silicon, calcium, iron or their oxides in materials, mainly cement raw meal and clinker. Background technique [0002] At present, in domestic cement enterprises, chemical analysis methods are generally used to measure the content of aluminum, silicon, calcium, iron or their oxides, and there are also multi-element analyzers that use wavelength dispersive X-ray fluorescence for analysis. If the chemical analysis method is used, it will cause serious pollution to the environment and cause damage to the health of users because chemical reagents are needed. Because it is a manual operation, the labor intensity is relatively large, and the human error is also relatively large. Since different elements or their oxides need to be analyzed separately, and the chemical analysis itself takes a long ti...

AI Technical Summary

Problems solved by technology

If the chemical analysis method is used, it will cause serious pollution to the environment and damage the health of the users because of the need to use chemical reagents.

Because it is a manual operation, the labor intensity is relatively large, and the human error is also relatively large.

Due to the need to analyze different elements or their oxides separately, and the chemical analysis itself takes a long time, the entire measurement time is long, and if the time is too long, it will affect the control of cement quality in the cement production process

If a wavelength dispersive X-ray fluorescence multi-element analyzer is used for analysis, the above-mentioned defects caused by chemical analysis can basically be overcome, but because the sample chamber of this type of instrument is relatively complicated, resulting in a long optical path, it is necessary to The X-ray tube with high voltage and high current is used as the excitation light source, so that the energy of the excitation light source is higher and the intensity is greater, so it will cause greater radiation and cause damage to the health of users.

Moreover, the entire structure of this type of instrument is relatively complicated, so the price is expensive, and few enterprises use it.

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