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Thirteen-arm digging and anchoring integrated machine tunneling system for coal mine mining roadway

A technology of mining roadway and all-in-one machine, which is used in tunnels, tunnel linings, installation of bolts, etc.

Active Publication Date: 2019-04-09
DATONG COAL MINE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to overcome the inadequacy of the driving efficiency and support efficiency of the integrated machine for mining and bolting under complex geological conditions, the present invention provides a driving system for the thirteen-arm integrated machine for mining and bolting in coal mine mining roadways

Method used

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  • Thirteen-arm digging and anchoring integrated machine tunneling system for coal mine mining roadway
  • Thirteen-arm digging and anchoring integrated machine tunneling system for coal mine mining roadway
  • Thirteen-arm digging and anchoring integrated machine tunneling system for coal mine mining roadway

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Embodiment Construction

[0041] The excavation roadway is divided into cutting area, temporary support area, timely support area, stable support area, control area and logistics supply area, so as to realize one excavation, one protection, one network and one synchronous coordinated operation.

[0042] (1) Thirteen-boom bolt-mining integrated machine tunneling system

[0043] 1. Cutting: adopt the cutting method of the existing integrated bolt digging machine, that is, use the full section of the horizontal retractable cutting part to cut into a lane at one time, and the maximum cutting width is 5400mm (4800mm+2×300mm retractable part), cutting The diameter of the cutting part is 1120mm, and the cutting height range is 3500-3700mm. Each cycle is divided into two cuts, and each cut is 400-500mm.

[0044] 2. Temporary support: The cutting part and the anchor (cable) drilling rig have mechanical size restrictions, resulting in a large distance between the empty roof after cutting, and it is difficult to ...

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Abstract

The invention relates to the tunneling of a coal mine mining roadway, and specifically relates to a thirteen-arm digging and anchoring integrated machine tunneling system for a coal mine mining roadway. The thirteen-arm digging and anchoring integrated machine tunneling system for the coal mine mining roadway is characterized in that a digging and anchoring integrated machine is equipped with a temporary support structure, 13 drilling machines, a net feeding mechanism and a trawling mechanism. Simultaneous operation with multiple drilling machines is adopted, the support efficiency is improvedby segmented support, and the net feeding and steel strip loading are realized by the circulating and reciprocating motion of the system with a lifting transport method; a tunneling method of the tunneling system comprises the following processes: unit cutting, coal clearing, temporary pre-exploration support rising, synchronous net laying and steel strip transporting, timely support, stable support replenishment, circulation end, and the completion of residual angle anchor rods and face guard anchor rods at the bottom row by a supporting anchor rod drill carriage. By adopting the rapid tunneling system, the monthly average footage can reach 800-1000 meters, and by adopting a combined support method of anchor rods, anchor cables, steel strips and meshes, the support requirements of the roadway are met.

Description

technical field [0001] The invention relates to the excavation of a coal mine mining roadway, in particular to a driving system of a coal mine mining roadway with a thirteen-arm all-in-one digging and bolting machine. Background technique [0002] There are mainly two types of fully mechanized excavation in existing coal roadways, EBZ series longitudinal-axis roadheader and integrated machine for digging and bolting. Among them, EBZ series longitudinal-axis roadheader has strong applicability, mature technology, and is widely used. The average monthly footage is 180-280 meters, but the anchor (cable) drilling rig is not integrated, and the support operation takes up more than 80% of the entire operation time. The average monthly footage of the integrated anchor (cable) drilling machine is 400-480 meters, but the adaptability is relatively small. Poor, the requirements for the geological conditions of the excavation roadway are strict. However, with the continuous developmen...

Claims

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Application Information

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IPC IPC(8): E21D23/04E21D23/16E21D20/00E21D11/15E21D11/40E21D11/00E21D9/11
CPCE21D9/11E21D11/00E21D11/152E21D11/40E21D20/003E21D23/04E21D23/16
Inventor 宋银林高建伟于忠厚刘建君刘超峰
Owner DATONG COAL MINE GRP
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