A device for measuring the crystallization point of emulsion explosive aqueous phase solution

Abstract

The invention provides a device for measuring the crystallization point of an emulsion explosive aqueous phase solution, comprising an original equipment system, a circulation system and a temperature control system; the original equipment system includes a beaker and a test tube; the circulation system includes a pump, a heat-resistant Tube one and heat-resistant tube two; the temperature control system includes a heat row, a single-chip microcomputer, a water-resistant temperature sensor one, a water-resistant temperature sensor two, a temperature display screen and a temperature sensor one; the pump is placed at the bottom of the beaker, and the pump and the water-resistant One end of the heat pipe 1 is connected, the other end of the heat-resistant pipe 1 is connected with the heat row, one end of the heat-resistant pipe 2 is connected with the heat row, and the other end of the heat-resistant pipe 2 is immersed in the heat exchange medium; the water-resistant temperature sensor One end of one is placed in the solution to be tested in the test tube, and the other end is connected with the single-chip microcomputer through a signal line; a temperature sensor one is arranged on the heat row. The device for measuring the crystallization point of the aqueous phase solution of emulsified explosives according to the invention can conveniently, meticulously and accurately control the cooling rate of the solution and ensure the accuracy of the measurement results.

Description

technical field [0001] The invention belongs to the technical field of emulsified explosives, in particular to a device for measuring the crystallization point of an aqueous phase solution of emulsified explosives. Background technique [0002] Emulsion explosives occupy a dominant position in my country's industrial explosives. The emulsion explosive before sensitization is called a latex matrix, and the internal phase composed of an aqueous solution of an inorganic salt oxidant is the basis for preparing the latex matrix. Since the inner phase of the inorganic oxidant salt solution is supersaturated, the latex matrix must be emulsified at high temperature, which makes the emulsion explosive prone to explosion during production. As the temperature decreases, the salt solution of the inorganic oxidant will usually crystallize, which will seriously affect the use and storage performance of the emulsion explosive. [0003] In order to ensure the production safety, storage st...

AI Technical Summary

Problems solved by technology

Once crystallization is observed, immediately read and record the crystallization temperature. Although this method is simple, it has the following disadvantages: 1. Only the solution is allowed to cool under natural conditions, and the influence of the surrounding environment on the cooling rate of the solution cannot be controlled, resulting in precipitation. Crystal point measurement is not accurate

2. The crystals just precipitated from the solution are very small, which is not easy to observe. Once the crystallization process starts, a large number of crystals will precipitate in a short time

Therefore, it is difficult to accurately capture the moment when the crystallization begins with only the human eye, so the random error of the measurement may be large, and it does not even correspond to the actual situation

3. The whole process requires experimenters to observe the crystallization of the solution all the time, which increases the workload

[0006] 1. It is impossible to accurately control the cooling rate of the solution under the concentration of a strong light source, resulting in an unstable cooling process and an uncontrollable effect on crystal precipitation, which directly leads to inaccurate crystallization point measurement

[0007] 2. Use a strong light source to detect crystallization, which increases the energy consumption of the experiment, and the number of samples used in the experiment is large, resulting in energy waste

[0008] 3. Using traditional low-accuracy thermometers to read the crystallization temperature, not only the reading error is large, but also the thermometer needs to be calibrated before use, which makes the experimental operation complicated

[0009] 4. It takes a certain period of time for people to respond to external stimuli, so judging whether the solution is crystallized or not by manually observing whether there is flash in the light area will produce a large random error

[0010] 5. The whole process requires experimenters to observe the crystallization of the solution all the time, which increases the workload

[0011] 6. As a part of the device, the strong light source and the condenser are placed aside separately, and cannot be closely combined with the whole device, which appears more scattered

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