Key technology of split-type slitting drill rig with double-arm for mine

KAN Zhitao

Safety in Coal Mines > 2021 > 52(7): 129-133.

KAN Zhitao. Key technology of split-type slitting drill rig with double-arm for mine[J]. Safety in Coal Mines, 2021, 52(7): 129-133.

Citation:

KAN Zhitao. Key technology of split-type slitting drill rig with double-arm for mine[J]. Safety in Coal Mines, 2021, 52(7): 129-133.

Citation:

KAN Zhitao. Key technology of split-type slitting drill rig with double-arm for mine[J]. Safety in Coal Mines, 2021, 52(7): 129-133.

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Key technology of split-type slitting drill rig with double-arm for mine

KAN Zhitao

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Published Date: July 19, 2021

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Abstract

Abstract

In order to improve the construction efficiency of pre-splitting blasting borehole in the technology of gob-side entry retaining by the way of roof cutting and pressure release, a split-type double-arm seam cutting drill for mining is developed, which is small in volume, flexible in movement, strong in tunnel adaptability and high in construction efficiency. The key technologies of stability, power matching, gyrator, feeding device and luffing mechanism were researched. The test shows that the structure design of the drilling rig is reasonable and the performance of hydraulic system is reliable, and meets the construction requirements of pre-splitting blast borehole in coal mines.
- roof cutting and pressure releasing,
- pre-splitting blasting borehole,
- double-arm,
- split-type,
- slitting drilling rig

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References

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