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Device for detecting specific surface area and aperture of dynamic and static powder

A technology of specific surface area and detection device, which is applied in measurement device, permeability/surface area analysis, suspension and porous material analysis, etc., can solve the problems of high vacuum degree, low detection accuracy and high detection cost. The effect of low detection cost, high detection efficiency and fast detection speed

Pending Publication Date: 2020-09-22
成都精新粉体测试设备有限公司
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Problems solved by technology

Therefore, the vacuum degree of the system is very high, and a high-vacuum molecular pump is required, and the price is high.
[0004] At present, the equipment for testing the specific surface area and pore size distribution of powders uses one of the methods for testing, which cannot be selected according to the specific situation, resulting in high testing costs and low testing accuracy.

Method used

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  • Device for detecting specific surface area and aperture of dynamic and static powder
  • Device for detecting specific surface area and aperture of dynamic and static powder
  • Device for detecting specific surface area and aperture of dynamic and static powder

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Embodiment

[0039] Such as Figure 1-Figure 3 As shown, this embodiment provides a dynamic and static two-state powder specific surface area and pore size detection device, including: a static detection component for detection by a static method, a dynamic detection component and an air supply component for detection by a dynamic method.

[0040] The output ends of the gas supply part communicate with the static detection part and the dynamic detection part respectively, and the standard gas is supplied to the static detection part and the dynamic detection part through the gas supply part.

[0041] The detection device adopts the combination of static method detection and dynamic method detection, and can use static method detection or dynamic method detection according to the situation, and can also use two kinds of detection at the same time. The detection efficiency is high, and the detection accuracy is also improved at the same time. Costs are reduced.

[0042]Preferably, in this e...

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Abstract

The invention relates to a device for detecting the specific surface area and the aperture of dynamic and static powder, and belongs to the technical field of powder detection. The detection device comprises a static detection part for detecting by adopting a static method; a dynamic detection component which is used for detecting by adopting a dynamic method; and a gas supply component of which the output end is respectively communicated with the static detection component and the dynamic detection component and supplies standard gas to the static detection component and the dynamic detectioncomponent. The detection device has a static detection mode and a dynamic detection mode, the corresponding detection modes can be selected according to needs, the detection cost is reduced, and thedetection accuracy is improved.

Description

technical field [0001] The invention belongs to the technical field of powder detection, and in particular relates to a detection device for the specific surface area and aperture of dynamic and static powder. Background technique [0002] The specific surface area, pore distribution and volume of the powder directly determine its physical and chemical properties. Dynamic flow nitrogen adsorption method (hereinafter referred to as dynamic method) and static volumetric nitrogen adsorption method (hereinafter referred to as static method) are two widely used testing methods at present. [0003] The dynamic method is mainly used for the test of the specific surface, because it does not require vacuum and the analysis time is short, so it is widely used. The static method is mainly used for specific surface and pore size analysis. In the static method, since the adsorption process is a cumulative process, the higher the vacuum degree, the more accurate the initial adsorption a...

Claims

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Application Information

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IPC IPC(8): G01N15/08
CPCG01N15/0893
Inventor 周已欣
Owner 成都精新粉体测试设备有限公司
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