On-line pulp ph gauge

A ph value and measuring instrument technology, which is applied in the direction of measuring devices, instruments, and material analysis through electromagnetic means, can solve the problems of narrow gap between the driving mechanism and the supporting structure, inapplicability, and low mechanical strength of the glass electrode, so as to achieve reliability High and long service life effect

Inactive Publication Date: 2009-04-29
BEIJING GENERAL RES INST OF MINING & METALLURGY
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Problems solved by technology

[0003] In the prior art, glass electrodes are mostly used for the measurement of solutions, but glass electrodes have low mechanical strength and cannot be used in environments with severe wear and strong erosion.
[0004] In the prior art and products, metal electrodes are also used to measure pH, but either the cleaning device is lacking, or the gap between the driving mechanism and the supporting structure of the cleaning device is narrow, which is not suitable for environments with severe fouling.

Method used

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  • On-line pulp ph gauge
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specific Embodiment

[0020] For specific examples, see figure 1 :

[0021] Three poles 6 are fixed by two fixing assemblies 18, and measuring head 15 is installed on one end of pole 6, and corresponding parts such as driving motor 2 are installed on the other end. The rotating shaft 17 passes through the middle of the fixing assembly 18 , and there is a large gap between the rotating shaft 17 and the pole 6 . Due to the existence of the gap between the rotating shaft 17 and the pole 6, the structure of the pH electrode is open, has high mechanical strength, and is easy to clean. All parts and components can be processed according to the working conditions of the tested solution to ensure corrosion resistance.

[0022] The rotating shaft 17 is connected with the drive motor 2 through a coupling 20 . The scraper head 8 is fixed on the rotating shaft 17, and the rotation of the scraper head 8 is driven by the continuous or discontinuous rotation of the driving motor. The two fixing components 18 ...

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Abstract

The invention discloses an on-line ore pulp pH meter, which comprises three parts, namely a measuring electrode, an amplifier and an intelligent instrument. The measuring electrode comprises a measuring head on which a metal electrode is arranged; the surface of the metal electrode is provided with a scraper component which comprises a scraper head; the scraper head is provided with a scraper blade which contacts the surface of the metal electrode and is compressed on the surface of the metal electrode through a spring; and the scraper blade is driven by a driving device to rotate on the surface of the metal electrode, so as to scrape and wash the surface of the metal electrode. The amplifier is arranged in the measuring electrode, and a pH signal generated by the measuring electrode is converted into a digital signal by the amplifier to communicate with the intelligent instrument. The on-line ore pulp pH meter has the advantages of high reliability and long service life, can be applied under harsh working conditions, and can be arranged on a container such as an ore pulp stirring groove, a reaction tank, an open channel or a pipeline and the like to achieve continuous on-line measurement of pH value of a solution to be measured.

Description

technical field [0001] The invention relates to a measuring device, in particular to an online pulp pH meter. Background technique [0002] In the industrial production process, especially in the mineral processing industrial production, the pH value of the pulp, solution or suspension solution needs to be within a certain range to meet the production needs. [0003] In the prior art, glass electrodes are mostly used to measure solutions, but glass electrodes have low mechanical strength and cannot be used in environments with severe wear and strong erosion. [0004] In the prior art and products, metal electrodes are also used to measure pH, but either lack of cleaning device, or the gap between the driving mechanism and the support structure of the cleaning device is narrow, which is not suitable for environments with severe fouling. Contents of the invention [0005] The purpose of the present invention is to provide an on-line pulp pH meter with high reliability, long...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/38G01N27/403
Inventor 周俊武徐宁赵建军
Owner BEIJING GENERAL RES INST OF MINING & METALLURGY
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