Measuring method for coal rock capillary water absorption amount

Abstract

The invention discloses a measuring method for a coal rock capillary water absorption amount. A measuring system for the coal rock capillary water absorption amount comprises a container, a test sample, a high-speed acquisition instrument, a constant flow source, a support and a weighing sensor. The method comprises the main steps that the weighing sensor is used for converting weight changes in the coal rock water absorption process into electric signals, and an experiment result is obtained through acquisition and processing of the high-speed acquisition instrument; during the experiment, the weighing sensor is fixed to the support, the test sample is tired below the weighing sensor, then, the system is powered on, a data acquisition system is connected, a water submerging test sample is added into the container, and the experiment can be started. Compared with traditional methods, the method is more accurate, saves labor, and can obtain a large amount of data conveniently so that the obtained conclusion is more accurate.

Description

technical field [0001] The invention belongs to a new test method for the water absorption experiment of coal rock, in particular to a novel device for measuring the water absorption amount of coal rock. Background technique [0002] At present, the effect of water on coal and rock has great application in engineering, so it is necessary to continue to study the properties and characteristics of coal and rock in the process of water absorption, and it is of great significance to find a more convenient and accurate method. [0003] The traditional measurement of water absorption of coal and rock requires constant wiping of the specimen, which will damage the specimen and affect the experimental results. This kind of experiment generally lasts for 48 hours, and someone needs to continuously take the sample out of the water and weigh it, and the data obtained is limited, that is, there are shortcomings of human waste and insufficient experimental data. The existing method of w...

AI Technical Summary

Problems solved by technology

[0003] The traditional measurement of water absorption of coal and rock requires constant wiping of the specimen, which will damage the specimen and affect the experimental results

This kind of experiment generally lasts for 48 hours, and someone needs to continuously take the sample out of the water and weigh it, and the data obtained is limited, that is, there are shortcomings of human waste and insufficient experimental data.

The existing method of using a suspended water-absorbing electronic balance for weighing and manual reading has been improved compared to the traditional method, but there are still problems of manual reading and the need for a sealed container to prevent water vapor from evaporating and losing weight.

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