Strip mine blasting hole water depth detection device

Abstract

The invention discloses a strip mine blasting hole water depth detection device which comprises a driving handle, a steel wire rope, a power line, a ruler, a positive pole pile head, a negative pole pile head and a lead weight. By adopting the device, the working efficiency of measuring the hole depth and the water depth of the blast hole can be improved, the accuracy of the hole depth and the water depth is also effectively improved, reliable data guarantee is provided for subsequent accurate filling of explosives, and the occurrence of miss-fire and hole channeling accidents is further effectively reduced or avoided.

Description

technical field [0001] The invention relates to the technical field of open-pit mine blasting, in particular to an open-pit mine blasting hole water depth detection device. Background technique [0002] Open pit blasting is mainly divided into two categories: dry hole blasting and water hole blasting. In order to overcome the influence of water on explosives, before filling the blasthole, the depth of water inside the blasthole must be measured first, so as to determine the loading amount of explosives, and then achieve the best blasting effect. However, because there is no special measuring tool, in general, the end of the rice rope is bound with stones or metal objects and thrown into the blast hole to measure the water depth, and the position of the gun is roughly estimated by the position where the water soaks the rice rope. The depth of water in the hole is calculated, and the corresponding explosives are filled for blasting operations. Due to the inaccurate measureme...

AI Technical Summary

Problems solved by technology

However, because there is no special measuring tool, in general, the end of the rice rope is bound with stones or metal objects and thrown into the blast hole to measure the water depth, and the position of the gun is roughly estimated by the position where the water soaks the rice rope. The depth of water in the hole is calculated and loaded with corresponding explosives for blasting operations

Due to the inaccurate measurement of the depth of the blast hole, the amount of explosives can not be accurately grasped, which often leads to too much or too little explosive loading, resulting in accidents such as "rejecting blast" or "channeling holes"

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