Observation and listening method of wellbore clogging in high-deep chute

Abstract

The invention provides a method for observing and monitoring the blockage of the high-deep chute wellbore. Drilling the observation blast hole connected with the high-deep chute, after the high-deep chute is blocked, the flow of the ore in the high-deep chute is observed through the audio and video monitoring system when the ore is drawn. After the ore level falls, observe the vertical distance of the center of the intersection of the blasthole and the high-deep chute, and calculate the amount of ore drawing, so that the vertical distance between the ore surface in the high-deep chute and the center of the intersection of the blasthole and the high-deep chute meets the set value. Distance requirements; measure and calculate the clogging position of the ore in the high-deep chute; monitor the clogging arch in the shaft of the high-deep chute to judge the stability of the clogging arch. This method not only provides a scientific, reasonable and reliable basis for formulating a plan for dredging the chute, but also greatly improves the safe working environment and labor intensity of the operators, and the ore drawing control is accurate and in place.

Description

technical field [0001] The invention belongs to the technical field of metallurgy and mines, and relates to a method for monitoring a high-depth chute, in particular to a method for observing and monitoring the blockage of a high-deep chute shaft. Background technique [0002] In the process of mining, the production mode of high-depth shaft transportation with the advantages of less investment, less equipment, low cost and large production capacity is usually adopted. However, during the production process, accidents such as blockage and landslides often occur in the high-depth chute, which seriously affect the mine production and pose a great threat to personal safety. [0003] In general, the blockage of the chute is observed through the chute, but due to the side pressure of the ore flowing in the shaft during the ore drawing process, the connection between the chute and the chute is basically blocked, and the observation needs to be cleared. However, since it is imposs...

AI Technical Summary

Problems solved by technology

However, during the production process, accidents such as blockage and landslides often occur in high and deep shafts, which seriously affect mine production and pose a great threat to personal safety.

[0003] Generally, the blockage of the chute is observed through the chute, but due to the existence of side pressure when the ore flows in the shaft during the ore drawing process, the connection between the chute and the chute is basically blocked, and the observation needs to be carried out after the ballast is cleared

However, since it is impossible to judge the clogging position of the chute in advance, it is difficult to estimate when the ore surface below the clogging arch in the shaft will be drawn to the floor of the communication channel. Put the ore surface inside to the floor of the connecting road to clear the ore clogging the connecting road, and then manually observe the blockage of the chute after cleaning the ore

In the whole process of ore drawing, manual detection, cleaning of ore slag and blockage observation, operators are directly exposed to the range of huge air shock wave damage once the blockage arch collapses, and the personal safety of the operators cannot be guaranteed.

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