Mining deep hole laser measuring instrument

Abstract

The invention discloses a mining deep hole laser measuring instrument, which comprises a measuring instrument, a tray, gradienters and an umbrella-type installing support. The measuring instrument is fixed in the tray through a rubber sleeve, and is used for measuring blasthole parameters; the two gradienters are inlayed on the surface of the tray; center lines of the two gradienters are mutually perpendicular; the umbrella-type installing support is connected to the bottom part of the measuring instrument; the stretching size of the umbrella-type support can be adjusted according to the size of a mining hole, the umbrella-type support is conveniently and accurately fixed in blastholes with different diameters, and a signal emitted by a signal projector of the measuring instrument is coincided with a central axis of each blasthole, so that the depth of the blasthole is ensured to be measured accurately, especially for a blasting area with the same measuring hole diameter, only if a sleeve pipe positioning valve is adjusted at a time, quick measurement for multiple times can be realized, and the efficiency of measuring the depth of the blasthole is greatly improved.

Description

Technical field [0001] The invention relates to the field of mining measurement, in particular to a deep hole laser measuring instrument for mining. [0002] technical background [0003] The inspection of the quality of blast hole formation is an important process before mine blasting. With the popularization and application of mixed explosive technology at the blasting construction site in open-pit deep-hole blasting, the scale of blasting is getting larger and larger. Single blasting in large open-pit mines The number of blast holes varies from dozens to hundreds, and tens of thousands of blast holes need to be measured every year. Many mines still use manual tape measurement methods, which leads to low measurement efficiency, especially the additional height after the blast hole is charged. For measurement, manual tape measurement simply cannot meet the requirements of blasting construction. [0004] Due to the complex terrain of the mine and the ever-changing conditions of the ...

AI Technical Summary

Problems solved by technology

[0003] The detection of the blasting hole quality is an important process before mine blasting. With the popularization and application of mixed explosives technology in the blasting construction site in open-pit deep-hole blasting, the blasting scale is also increasing. Large-scale open-pit mine single blasting The number of blastholes ranges from dozens to hundreds, and tens of thousands of blastholes need to be measured every year. Many mines still use manual measuring methods, which leads to low measurement efficiency, especially the reinforcement of blastholes after charging. The manual tape measurement cannot meet the requirements of blasting construction at all

[0004] Due to the complex terrain of mines, the ever-changing blast holes and surrounding conditions, the existing measurement technology cannot be directly applied in mines, and digital blasting construction is an important issue in my country's mine blasting industry. The traditional blast hole measurement method seriously restricts the development of digital blasting

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