Dipping or high-dipping thin ore cantilever-type tunneling machine ore breaking continuous mining method

A mining method and roadheader technology, applied in ground mining, mining equipment, underground mining, etc., can solve difficult problems such as unsteady inclined or steeply inclined thin ore body mining, and achieve small disturbance of surrounding rock and equipment movement Convenience and high rock breaking efficiency

Active Publication Date: 2018-10-12
BEIJING MINING & METALLURGICAL TECH GRP CO LTD
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Problems solved by technology

However, for the mechanical falling of inclined or steeply inclined thin ore bodies, there is still a technical gap in the integration and matching of various mining processes and mining and cutting projects in the mining of inclined or steeply inclined thin ore bodies by cantilever roadheaders, and it is difficult to solve the problem of unstable or steeply inclined ore bodies. Mining of sharply inclined thin ore body, especially the problem of continuous mining with mechanical falling

Method used

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  • Dipping or high-dipping thin ore cantilever-type tunneling machine ore breaking continuous mining method
  • Dipping or high-dipping thin ore cantilever-type tunneling machine ore breaking continuous mining method
  • Dipping or high-dipping thin ore cantilever-type tunneling machine ore breaking continuous mining method

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specific Embodiment approach

[0022] Inclined or sharply inclined thin ore body cantilever type roadheader continuous mining method for falling ore of the present invention, its preferred embodiment is:

[0023] include:

[0024] The entire set of mining methods implemented around a single mining operation face can be operated in parallel at the same time, and the entire set of mining methods includes mechanical ore falling, goaf filling, ore extraction and support operations;

[0025] When the roadheader is transferred from the end of the ore body to the upper part of the layer for mining, the Y-shaped mining engineering is used to transfer layers and turn around. The turning radius of the Y-shaped layer-transfer mining engineering is ≥ 6m. In the Y-shaped layer transfer mining project, the machine moves forward twice and retreats once to complete the U-turn. The starting slope of the Y-shaped layer transfer mining project is between 10° and 15° to ensure the smooth layer transfer of the equipment;

[00...

specific Embodiment

[0046] Such as Figure 1 to Figure 4 As shown, the specific steps are as follows:

[0047] (1) Divide stopes at intervals of 30m to 60m along the direction of ore body 13, with a height of 40m to 70m in the middle section, and use roadheaders to mine from bottom to top. Arrange filling shaft 5, chute 6 (ore chute, waste rock chute), mid-section drift 10, subsection drift 12 at the footwall of the ore body. According to the climbing ability of the trackless mine car 8 and the requirement of a sub-level entry 12 serving 3 to 4 excavation layers, the sub-level entry 12 is excavated from the sub-level entry 12 and the layered connection road 11 is accessible to the ore body for pedestrians, material transportation, Power supply, mining, ventilation, etc.

[0048] (2) The roadheader 1 excavates from one end of the ore body 13 to the other end, turns around in the equipment department in the same layer, and turns around at the end through the equipment layer transfer road 14 to en...

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Abstract

The invention discloses a dipping or high-dipping thin ore mechanical ore breaking continuous mining method. Tunneling machine mechanical ore breaking, goaf filling, stope carrying, supporting operation and the like all achieve parallel operation around a mining technology of a single mining operation face. Continuous ore drawing is achieved by moving a transferring ore bin, a tunneling machine conducts layer transferring returning at the ore end through a Y-shaped mining preparation structure and does not travel back, cutting engineering is avoided, point pillars and studs are not reserved, supporting is conducted only through fiberglass anchor bolts with good cuttability and meshes, and a dust-removal fan, a mobile substation and the like do not enter a stope and are all movably arrangedin mining preparation engineering. Mining and cutting engineering, all mining technologies and equipment power supplying are matched and then are mutually matched with the mechanical ore breaking efficiency, the technological continuity is improved, the efficiency of the tunneling machine is exerted to the greatest extent, and the mining mode of blasting ore breaking is changed basically. The mechanization degree is high, operating personnel are reduced greatly, the labor intensity is lowered, the goaf exposure time is short, and the mine intrinsic safety is improved. Through the highly-intensive parallel operation, the tunneling speed is high, the production efficiency is high, and the ore breaking cost is low.

Description

technical field [0001] The invention relates to a mining method, in particular to a cantilever type roadheader continuous mining method for inclined or sharply inclined thin ore bodies. Background technique [0002] Coal has been continuously mined through mechanical rock breaking. People began to think and proposed to replace the metal ore mining technology based on blasting with continuous cutting rock equipment. The cantilever roadheader is a commonly used mechanical equipment for coal roadway excavation. In terms of application form, it has the foundation to combine with metal and non-metal mine mining. However, on the one hand, the equipment itself is limited by the hardness of the broken rock (generally Occurrence of metal ore bodies is irregular, the application of roadheaders does not match the mining method, mining and cutting engineering, and mining technology, and there is a lack of technical support. Therefore, mechanical cutting and rock-breaking mining equipmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C41/22E21F15/00
Inventor 黄丹杨小聪陈何董凯程王湖鑫崔松刘立顺万串串冯盼学
Owner BEIJING MINING & METALLURGICAL TECH GRP CO LTD
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