Device and method for multi-component online polargrafic detection of metallurgical feed liquid

Abstract

The invention discloses a device and a method for multi-metal component online polargrafic detection of complex feed liquid in the wet-process metallurgy process and aims to provide an online polargrafic detection device for metallurgical industrial sites. The device comprises an automatic dropping-mercury quick lifting device, a pressure difference liquid level measuring device, a spiral hose connector and an automatic cleaning detection tank. When the online polargrafic detection device and the online polargrafic detection method are used, a mercury storage bottle can be lifted/dropped quickly, accurately and stably to ensure that the height of a liquid level, which is lifted every time, of a mercury surface of the mercury storage bottle is consistent; the spiral hose connector is durable, and the detection tank can realize the automatic filling and cleaning of the feed liquid; the quick online automatic detection of multiple metal components is realized, real-time and accurate information is provided for the optimization and control of the operating process, and the energy conservation, consumption reduction and emission reduction in the wet-process metallurgy process are promoted powerfully, so the online polargrafic detection device and the online polargrafic detection method have a great significance for the improvement of comprehensive automation level of enterprise production and the enhancement of international competitive power.

Description

technical field [0001] The invention relates to a multi-component automatic polarographic detection device and method for metallurgical feed liquid in hydrometallurgy process. It belongs to the field of detection of heavy metal ions in the metallurgical industry. Background technique [0002] At present, there are still some problems in the field application of the relatively mature polarographic detection method in the detection of the concentration of heavy metal ions. Controlling the size and drop time of mercury droplets at the dropping mercury electrode is the basic guarantee for the accuracy of polarographic analysis and detection results. There are several ways to generate mercury droplets on the mercury dropping electrode of the existing polarograph: free dripping, the sensor detects the large current when the dripping is used as a pulse signal, and starts to calculate the life of the mercury droplet for quantification. The disadvantage is that it is easily affected...

AI Technical Summary

Problems solved by technology

At present, most of the polarographic analysis and detection devices are only used in the laboratory environment. Generally, the height of the mercury storage bottle on the vertical rod installed on the base is adjusted manually by manually adjusting the knob nut. Speed ​​control, high precision control and efficiency of equipment continuous operation during the movement of mercury bottles

[0004] The patent No. 200420091226.9 is a utility model patent, which uses a pulley and a traction line to lift the mercury storage bottle. The stretching and vibration of the traction line will easily cause height errors. In addition, the upper and lower limit switches in the patent cannot be automatically adjusted. The height change caused by the change of the liquid level cannot be corrected; the utility model patent with the patent number of 200820005547.0 has improved the shortcomings of the former, but the use of the screw motor cannot meet the needs of rapid lifting and quick measurement

In addition, the hose connected between the mercury storage bottle and the capillary glass tube of the above patent is easy to break or be damaged after long-term use.

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