Multi-channel on-line sampling and sample introducing method for high-temperature high-thickness liquid material

Abstract

The invention relates to an on-line sampling and sample introducing method for a high-temperature high-thickness liquid material during a process in hydrometallurgical industry. According to the method, on-line sampling is carried out upon the high-temperature high-thickness liquid material requiring detection by using an anti-crystallization and anti-blocking constant-temperature sampler; the liquid material requiring detection is diluted with a precise wide range to a linear sensitivity detection rage of a concentration analyzer by using multiple stages of constant-temperature diluting apparatuses; with an ordered injection method, agents such as the obtained sample, a base solution, a substrate masking agent, and a correcting liquid are mixed, and are sufficiently subject to a reaction; the obtained mixture is delivered into the concentration analyzer, such that the high-temperature high-thickness liquid material on-line sampling, sample introducing and sample preparing processes are realized. The on-line sampling and sample introducing method can conveniently be used in combination with the analyzing and detecting method. With the method, on-line analyzing and detecting of thecomponents of the high-temperature high-thickness liquid material can be stably and reliably realized; real-time and accurate information can be provided for the optimization of the process operation. Therefore, the method has important significances in energy saving and consumption reducing during a hydrometallurgy process, in improving the automation level of productions of enterprises, and in improving the international competitive strengths of the enterprises.

Description

technical field [0001] The invention relates to an on-line automatic sampling method for high-temperature and high-thickness feed liquid in heavy metal hydrometallurgy process. The invention belongs to the technical field of on-line analysis and detection of heavy metal ions in the hydrometallurgical industry. Background technique [0002] The main reason for the high energy consumption and material consumption in the heavy metal hydrometallurgy process is that it is difficult to take samples of high-temperature and high-density feed liquid in the production process, and it is difficult to detect the content of various impurities on-line. The detection method follows the manual operation of manual sampling and laboratory analysis. Mode, the sampling and testing process has a long lag time and a large testing cycle, and the process parameters are set by the operator based on experience. The production process operation is in a "blind" state, resulting in serious waste of reso...

AI Technical Summary

Problems solved by technology

Due to the large number of on-site measurement parameters and measurement points, the on-site sampling, sample preparation, and analysis and detection by analytical laboratory personnel are complex and cumbersome, with a long time period and a large lag. On-site operators cannot obtain real-time analysis and detection information of key parameters of the process. , which seriously affects the implementation of real-time optimization control of the process. The operation is completely based on personal experience, which is subjective and blind, resulting in high energy consumption and high material consumption in the hydrometallurgical process.

Images