Method and device for measuring caking strength parameters of granular material through single solid bridge

Abstract

The invention relates to a method and a device for measuring caking strength parameters of a granular material through a single solid bridge. Two particles are fixed through the device, a single solidbridge is generated between the two particles through temperature and humidity control, the radius of the fixed bridge is measured through a microscope, the solid bridge is destroyed through externalforce, and therefore the caking strength parameter of the material is obtained through calculation according to the formula sigma = C/pib2 or sigma = G/pibc2, wherein sigma is the caking strength parameter of the granular material, b is the radius of a solid bridge, and C is the force required by the solid bridge with the crushing radius of b, namely the caking strength; G is the particle weight,and bc is the critical solid bridge radius. The device is composed of a temperature and humidity control box, a particle fixing device and a microscope. The particle fixing device can be in the formsof double-mechanical-arm pressure sensing, lifting, platform descending, vibration and the like. The method has the advantages of more accurate physical significance and credibility, high precision,strong repeatability, short measurement period, less sample consumption, high flux and the like.

Description

technical field [0001] The invention relates to a measuring method and device, in particular to a method and device for measuring the agglomeration strength parameters of granular materials through a single solid bridge. Background technique [0002] Solid particles are a very common product form in industrial production. In the fields of medicine, chemistry, food, fertilizer, detergent, military industry, etc., solid products tend to be prepared in a single, dispersed state to have good fluidity and stability, thereby enhancing commercial competitiveness. However, in the downstream process of granular products (filtering, washing, drying, transportation, storage and sales), agglomeration is very easy to occur, resulting in the loss of fluidity and stability of the product, a significant decrease in product value, and an increase in production and use costs. The pervasiveness and harmfulness of agglomeration plague many production fields and become the main factor hindering...

AI Technical Summary

Problems solved by technology

In terms of the consumption of test samples, the consumption of the bagging method is huge, and the single consumption of the accelerated agglomeration method is also at the level of 100 grams. Such a high consumption is almost unbearable for some precious samples.

In terms of measuring devices, the bagging method occupies a large area and cannot be adjusted for temperature and humidity; the sample preparation device for the accelerated test method is often relatively large, and in a conventional temperature and humidity control box (0.5 to 1 cubic meter of space) ) can only place one sample preparation device, and cannot achieve multi-throughput

[0010] Therefore, in order to solve the problems of low accuracy, long measurement period, large consumption of dosage, and difficulty in multi-throughput of the measuring device in the traditional method of measuring caking strength parameters, a method and supporting device are urgently needed to achieve efficient caking strength parameters. accurate measurement

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