'Uranium mines are digital, intelligent, unmanned wellsite, fundamentally speaking, without sensors and meter Technology, etc., The key to its technology is inseparable from the input and output of data. ' On the occasion of the 60th anniversary of the establishment of China's uranium mining and metallurgy scientific and technological achievements exchange held on May 24th, Li Shaohai, senior engineer at the Nuclear Industry Beijing Institute of Metallurgy and Metallurgy, received technology. In an interview with a reporter from the Daily, it was believed that the stability, reliability, intelligence, and data transmission interface of the instrument were unifying, which was crucial for the development of intelligent uranium mines. At present, uranium mining and metallurgy special instruments need to be intelligent. Road must go through the kan.
Need to allow the meter to learn to let the data 'value added'
Problems with general purpose instrumentation are discovered during manual inspections. Professional technicians then go to the site for maintenance. The overall technology of uranium mines is becoming digital and intelligent. It is not possible to have special instrumentation engineers to maintain the uranium mines as before. Instrument, but one person and several positions.
The self-diagnosis function of special intelligent instrument is especially important.
Liu Jie, general manager of Beijing Bo Rui Sai Technology Co., Ltd., told reporters that the current uranium mine dedicated smart meters, in addition to measurement functions, some also have networking features, but the data is transmitted in one direction, the instrument can not obtain a specific measurement object from the network History-related data, and through analysis and learning, make the data 'value-added' and make the measurement more intelligent. For example, the meter can learn autonomously. According to the trend of historical big data, it can evaluate whether the abnormal value of the current measurement value is a reliable value. The current data breaks through the trend of historical data, and the meter may not transmit the measured value to avoid the malfunction of the automatic control system.
'This has broken the data calculation and storage mode of traditional smart meters. It needs to collect a large amount of related data as a basis, combine existing embedded systems with big data, and use relevant software algorithms to obtain certain laws and experiences. The law and empirical memory are applied to the actual measurement, and this process is a process of constant repetition and correction. 'Li Shaohai believes that to achieve this goal, we must first solve the problem of data collection. The larger the data volume, the wider the coverage. It is helpful to get reliable experience or correct law.
To improve instrument environmental adaptability
In the actual application process, the instruments all have problems in reliability and environmental adaptability.
China has a vast territory, and the natural environment of the domestic uranium mines is also different.
In general, uranium mines in southern China are often exposed to high temperature and high humidity. In northern uranium mines, low temperature conditions are common. Combined with uranium mining and smelting techniques, the technical solutions are more complex acidic systems and neutral leaching systems. For different ore sites, The components in the process solution tend to vary greatly.
Li Shaohai said that the following factors will cause various problems in the actual use of the instrument: The measured solution is prone to fouling or sediment, instrument The clogging of the sampling unit causes the instrument to fail to measure online continuously. Under high temperature and high humidity conditions, the insulation of certain components of the instrument is degraded, resulting in failure of the instrument.
According to Li Shaohai, according to the occasions and characteristics of special instruments used in uranium mines, when devising smart special instruments, derating and redundant design should be adopted to improve system reliability, and under the conditions of the laboratory, simulate the scene according to the actual application conditions. Temperature, humidity, corrosion conditions, electromagnetic interference, mechanical environment, and electrical safety, etc. In the selection of materials, measurement methods used, etc., increase research efforts and testing efforts to improve the reliability and adaptability of the instrument.
Source: Science and Technology Daily
