3 results about "Radon exhalation" patented technology

The invention discloses a method for predicting the radon exhalation rate of an ore body under a multi-factor coupling condition. The method comprises the following steps: collecting a rock sample in a mining area and processing the rock sample into a standard sample; measuring the porosity and the radium content of the sample; judging whether the porosity and the radium content are the same or not; and calculating the radon exhalation rate by utilizing a plurality of equation prediction models based on parameters such as temperature, water content, porosity and radium content. The radon exhalation rate prediction method comprehensively considers the coupling effect of multiple factors such as temperature, moisture content, porosity and radium content, overcomes the defects of a single-factor model, realizes more accurate prediction and effective prevention and control of radon exhalation behaviors of a mine, has good practicability, economical efficiency and popularization value, and is suitable for popularization and application. And powerful technical support is provided for mine radiation protection and safety production.

The application provides an open area radon emission rate prediction method based on VMD-LSTM-ELMAN, first, the radon emission rate historical data is decomposed into three components with different characteristic information by VMD, then the data training and prediction are carried out by selecting the LSTM model, the ELMAN neural network model and the normal distribution model, and the environmental factors affecting the radon emission are taken as the prediction index to input the model, so that the influence of the environmental index on the radon emission can be more truly reflected, the model prediction result can accurately reflect the emission law of the radon emission, and the prediction precision is high. The radon emission rate prediction model is established by jointly using VMD, LSTM and ELMAN, the lagging effect of the environmental index on the radon emission rate is specially considered, the radon emission rate value curve is decomposed and the change trend is predicted, and guidance is provided for radon prevention and control and environmental management.

The utility model discloses a uranium mine surface radon release rate ectopic measuring device, including the gas collecting cover and the air extraction spare, the upper portion of gas collecting cover is equipped with the gas collecting channel of closing, the surface of gas collecting channel is equipped with two symmetrical connection pipes, the bottom of air extraction spare is equipped with the insertion hole corresponding with connection pipe, air extraction spare is connected with gas collecting channel through connection pipe at insertion hole, and the one end of one connection pipe is equipped with air pump, and the surface of air extraction spare is equipped with the output pipe extending outward, the inside of gas collecting channel is equipped with annular card holder, the upper portion of annular card holder is supported with steel wire cage frame, and the steel wire cage frame is equipped with drying agent, this uranium mine surface radon release rate ectopic measuring device can effectively collect and transfer the radon gas, is not restricted by the gas collection position and environment when measuring, avoids the radiation hidden danger, and is suitable for widely using.