Coal mine gob filling system

A technology for gobs and coal mines, which is applied to fillings, mining equipment, earthwork drilling, etc., can solve problems such as unsuitable goaf filling in coal mines, and achieve the effect of favorable concentration

Active Publication Date: 2013-03-06
CHINA ENFI ENGINEERING CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, traditional filling facilities using tailings are not suitable for filling goafs in coal mines

Method used

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  • Coal mine gob filling system
  • Coal mine gob filling system

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Embodiment Construction

[0018] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0019] In the description of the present invention, the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", ", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the The invention does not require that the invention must be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

[0020] Refer below figure 1 A coal mine goaf filling system according to an e...

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Abstract

The invention discloses a coal mine gob filling system, comprising a cement bin for storing cement, a coal gangue hopper, a pool and an agitator tank, wherein the agitator tank is provided with an inlet and an outlet, the inlet is connected with the cement bin, the coal gangue hopper and the pool to accommodate cement, coal gangue and water, and the outlet is connected with a coal mine gob to supply filling slurry formed by stirring cement, coal gangue and water to the coal mine gob. According to the coal mine gob filling system, the coal gangue is utilized as a main filling material, cement and coal ash are used as auxiliary materials, and then water is added for filling. Cement, coal gangue and water used for filling coal mine gob can be easily obtained in coal mine, and the concentrate of the filling slurry formed by stirring in a coal mine gob filling system is convenient to regulate.

Description

technical field [0001] The invention relates to a goaf filling system, in particular to a coal mine goaf filling system. Background technique [0002] Mine goaf is the empty area left below the surface after mining. If it is not filled, it will cause ground subsidence and bring danger. Traditionally, mine gob filling uses tailings as the main filling material, and cement as filling cementing auxiliary materials. The tailings slurry contains water, so the concentration adjustment of the filling slurry is complicated. [0003] For coal mine goaf, there is still little filling at present, so the goaf left after coal mining has become a dangerous source for coal production areas, and ground subsidence has occurred in many coal mining areas in our country. Therefore, it is imperative to fill the coal mine goaf. However, traditional filling facilities using tailings are not suitable for filling goafs in coal mines. Contents of the invention [0004] The present invention aim...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F15/00
Inventor 李浩宇贺茂坤白光辉施士虎王麒
Owner CHINA ENFI ENGINEERING CORPORATION
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