A portable powder dense stacking molding device and its application

Abstract

The invention relates to a portable powder compact stacking molding device and application thereof. The device comprises a base, a support arranged on the base, an upper pressing die capable of being arranged on the support in a reciprocating moving manner in the vertical direction, a feeding guiding mechanism used in cooperation with the upper pressing die, a sample pressing part located below the upper pressing side and opposite to the upper pressing die, and a digital display supporting mechanism arranged at the bottom of the sample pressing part. The upper pressing die can be arranged on the support through a screw transmission mechanism in the vertical reciprocating moving manner. The portable powder compact stacking molding device is used for stacking molding and sample manufacturing of to-be-detected soil powder based on an X-ray fluorescent spectral analysis method. Compared with the prior art, the portable powder compact stacking molding device has the beneficial effects that the structure is simple, use is convenient, the device is light and capable of being carried, manufactured samples cannot be contaminated and are consistent in compactness, and operability and accuracy for measuring the soil samples through an XRF method are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of powder compression, and relates to a portable powder compact stacking molding device and its application. Background technique [0002] With the rapid development of urbanization and industrialization, the soil environment is facing unprecedented threats, and the pollution situation is becoming more and more serious. According to the analysis, my country's soil pollution, especially soil heavy metal pollution, has a tendency to further aggravate both in terms of pollution degree and scope. It is estimated that one-sixth of my country's cultivated land has been polluted by heavy metals. Soil heavy metal pollution not only endangers the growth and development of crops, but also endangers the health of animals and humans through groundwater and food chains. Since the 1980s, many countries in the world, especially developed countries, have formulated and carried out contaminated soil treatment and remediatio...

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Problems solved by technology

Although the technical solution disclosed in the above patent is beneficial to improve the problem of poor uniformity of powder tablet thickness in the prior art, when the device of this patent is used for measuring soil samples by XRF method, it cannot accurately control the sample preparation pressure, and cannot ensure that the sample is consistent with the sample. The density of the reference material after sample preparation is consistent, which will directly affect the detection accuracy of the XRF method, and the dried soil sample cannot be pressed into pieces at all.

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