Automatic control method for solution stirring

A solution and stirring container technology, applied in the direction of electric controllers, mixer accessories, chemical instruments and methods, etc., can solve the problems of inability to judge raw materials and waste processing time, so as to improve intelligence and automation, improve efficiency and effect, and simplify The effect of the action steps

Inactive Publication Date: 2019-02-15
ANHUI YUAN LAB EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because of its large stirring power, it is often used to mix the raw materials evenly. During the stirring process, it is often impossible to judge whether the raw materials are mixed uniformly. Because the stirring device has a high stirring speed during the stirring process, it is often the power supply of the stirring device Stop to observe the mixing situation, which greatly wastes the processing time, and needs a stirring device that can safely observe the stirring state without turning off the power

Method used

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  • Automatic control method for solution stirring

Examples

Experimental program
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Effect test

Embodiment 1

[0028] refer to figure 1 , a kind of solution stirring automatic control method that the present embodiment proposes, comprises the following steps:

[0029] S1. The solution is automatically stirred in the stirring container.

[0030] S2. Sampling the solution in the stirring container, testing and recording the light transmittance of the sample. The transmittance of the solution is determined by its concentration. In this step, the transmittance of the test sample is equal to the concentration of the test sample.

[0031] In this step, the light transmittance of the sample in the sample chamber is tested in real time by the spectrometer 3 . In this step, by converting the concentration detection of the solution into the light transmittance detection, the operation steps are simplified and the operation difficulty is reduced.

[0032] S3. Draw a spectrum curve according to the acquired test value. In this way, through the spectral curve, the change trend of the light tran...

Embodiment 2

[0039] Compared with Example 1, in step S2 of this example, a plurality of sampling points are set in the stirred vessel, and sampling is carried out in cycles at the positions of the plurality of sampling points. The setting of multiple sampling point positions is conducive to further improving the representativeness of sample collection, realizing the comprehensiveness of the detection of the solution in the stirring container, thereby further improving the accuracy of judging the uniformity of the solution.

[0040] Specifically, in step S2 of this embodiment, a preset sampling time value is set between any two adjacent samplings. Thereby, periodic sampling is realized, and the orderliness of solution detection is improved.

[0041] Specifically, in this embodiment, the detection time length is greater than or equal to the product of the sampling time value and the sampling point, so as to ensure that at least one round of detection of the solution at each sampling point is...

Embodiment 3

[0043] With respect to embodiment 1, the step S2 of this embodiment is specifically: a circulation pipeline is set, and a suction pump is arranged on the circulation pipeline, the first end of the circulation pipeline 2 is connected to the stirring container for sampling, and the second end of the circulation pipeline 2 After passing through the sample chamber of the spectrometer 3, it is connected to the stirring container, and the spectrometer 3 is used to detect the light transmittance of the sample in the sample chamber.

[0044] In this way, through the spectrometer 3, the solution concentration test is converted into the solution light transmittance test, and the continuous sampling of the solution through the flow channel is realized through the circulation pipeline 2, and the step of extracting the solution from the stirring container is also avoided. The operation difficulty is reduced, the test efficiency is improved, and it is beneficial to ensure the environmental s...

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Abstract

The invention provides an automatic control method for solution stirring. The method comprises the following steps of: S1, carrying out automatic stirring on a solution in a stirring container; S2, sampling the solution in the stirring container, testing and recording the light transmittance of samples; S3, drawing a spectral curve according to the obtained test values; S4, setting detection timelengths; S5, obtaining a difference value of a maximum value and a minimum value of the spectral curve in the nearest detection time length; S6, judging whether the difference value is less than or equal to a preset floating difference value, if not, returning to the step S5; and S7, if yes, stopping the stirring of the solution. According to automatic control method for the solution stirring, thejudgment of the degree of uniformity of the solution is clear and distinct, and the judgment standard is visualized. Moreover, the real-time detection according to the degree of uniformity of the solution is realized, so that the solution stirring is automatically controlled, thereby improving the intelligence and the automation of the solution stirring, and facilitating the improvement of the efficiency and the effect of the solution stirring.

Description

technical field [0001] The invention relates to the technical field of experimental equipment, in particular to an automatic control method for solution stirring. Background technique [0002] Stirring devices are often used in industrial production and laboratories. Because of its large stirring power, it is often used to mix the raw materials evenly. During the stirring process, it is often impossible to judge whether the raw materials are mixed uniformly. Because the stirring device has a high stirring speed during the stirring process, it is often the power supply of the stirring device Stop to observe the mixing situation, which greatly wastes the processing time, and requires a stirring device that can safely observe the stirring state without turning off the power. Contents of the invention [0003] Based on the technical problems existing in the background technology, the present invention proposes an automatic control method for solution stirring. [0004] A kin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B11/42B01F15/00
CPCG05B11/42B01F35/211
Inventor 张然袁巍王跃
Owner ANHUI YUAN LAB EQUIP
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