Device for uniformly stirring soil particle suspension for particle analysis experiment by densimeter method

Abstract

The invention discloses a uniform stirring soil particle suspension device for a particle analysis experiment by a densimeter method. The device comprises a casing, an air pump, a stirring rod, a temperature display, a temperature sensor and a timer, wherein the air pump is arranged in the casing, the temperature display and the timer are disposed on the casing, the stirring rod is connected with the air pump, and the temperature sensor is connected with the temperature display in a circuit mode. The device overcomes defects of manual stirring existing in stirrers in prior experiments. Movement of a suspension is driven by the rising of bubbles which are subjected to electronic control to enable soil particles in the suspension to be fully uniformly distributed, the suspension is effectively prevented from spilling when stirred by the control over bubble amount, and errors in manual measurement are reduced by electronic measurement of time. The measurement of suspension temperature is more accurate, convenient and rapid by addition of the temperature sensor. Compared with prior researches, by means of the device, the operation is simpler and more convenient, the experiment efficiency is increased, and the device is more practical.

Description

technical field [0001] The invention relates to a device for uniformly stirring soil particle suspension by a densitometer method in a particle analysis experiment. Background technique [0002] The particle analysis experiment is an experimental method for determining the percentage of the total mass of various particle groups in the soil. It can be divided into sieve analysis method and sedimentation analysis method. The sedimentation analysis method is further divided into density meter method and pipette method. For soil particles with a particle size of less than 0.075 mm, sedimentation analysis is required for determination. [0003] With the continuous development of underground space engineering, the research on rock and soil has become more and more common. In the aspect of soil research, soil particle composition, particle size gradation and other indicators have become the direction that people pay close attention to. Therefore, the particle analysis experiment I...

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Problems solved by technology

[0006] At present, the process of particle analysis experiments is basically mature, but in the production of uniform soil suspension, the stirring tools used in the stirring process of the suspension are inconvenient, and the collision between the metal stirring head and the measuring cylinder can easily cause damage to the device , the up and down stirring of the agitator is difficult to ensure the uniformity of the soil suspension. Once the stirring head is raised too high, it will cause inaccurate test data when it is higher than the liquid level, and it is difficult to meet the needs of efficient completion of the entire particle analysis experiment.

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