CN214887205U

CN214887205U - Rock burst prevention material limiter

Info

Publication number: CN214887205U
Application number: CN202120148152.1U
Authority: CN
Inventors: 何双龙; 张康宁; 王顺平; 朱宝军; 路广安
Original assignee: Huating Coal Group Co Ltd
Current assignee: Huating Coal Group Co Ltd
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2021-11-26
Anticipated expiration: 2031-01-20

Abstract

The utility model discloses a protecting against shock ground pressure material stopper, the spacing groove that distributes including the equidistance of ground top inner wall and the anchor rope that the equidistance of mine opening bottom distributes, spacing tank bottom inner wall all is connected with hydraulic expansion bend through the bolt, and hydraulic expansion bend top outer wall all through bolt fixedly connected with frame post, first alarm is installed to frame post one side outer wall, frame post top outer wall all welds there is first frame roof beam, and the welding of first frame roof beam top outer wall has the type of falling V frame top. The utility model discloses a duplicate protection device, first duplicate protection device are for installing the anchor rope that the equidistance distributes, and the anchor rope has length long, and tensile strength characteristics such as big can support the material that the ore deposit hole fell, and the frame on second duplicate protection device was for installing the type of falling V frame top, and when the material broke through the anchor rope and fell to the frame on, the material can be along the type of falling V frame top both sides of frame.

Description

Rock burst prevention material limiter

Technical Field

The utility model relates to a stopper technical field especially relates to a protecting against shock ground pressure material stopper.

Background

Rock burst is a phenomenon that elastic deformation potential energy accumulated in a rock body is suddenly and violently released under a certain condition, so that the rock bursts and is ejected. Rock burst is one of the main potential safety hazards faced by deep-well mines. Slight rock burst only has spalling rock slices, no ejection phenomenon exists, 4.6-level earthquake magnitude can be measured seriously, the intensity reaches 7-8 degrees, ground buildings are damaged, great sound is accompanied, in order to prevent dangers brought to lives and properties by rock burst, a material limiter needs to be installed during coal mine excavation, a common rock burst preventing material limiter is adopted, the top of the limiter is of a plane structure, the supporting force is insufficient, and the danger coefficient is large.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an anti-impact ground pressure material stopper.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a protecting against shock ground pressure material stopper, the anchor rope that the equidistance of spacing groove and ore deposit hole bottom that distributes including the equidistance of ground top inner wall all is connected with hydraulic expansion bend through the bolt, and hydraulic expansion bend top outer wall all through bolt fixedly connected with frame post, first alarm is installed to frame post one side outer wall, frame post top outer wall all welds first frame roof beam, and first frame roof beam top outer wall welding has the type of falling V frame top, frame post and first frame roof beam handing-over department welding have first high strength muscle and the second high strength muscle that is the handing-over and inserting symmetric distribution, the second frame roof beam of symmetric distribution is welded to anchor rope both ends outer wall, and second frame roof beam one side outer wall installs the second alarm, second frame roof beam bottom outer wall all welds the stand that has the equidistance and distributes.

Preferably, the first high-strength rib and the second high-strength rib are connected through a buckle.

Preferably, the size of the inner wall of the limiting groove is matched with the diameter of the hydraulic expansion piece.

Preferably, the distance between the two second frame beams is greater than the distance of the mine hole, and the outer wall of the top of the anchor cable is tightly attached to the outer wall of the bottom of the mine hole.

Preferably, the outer wall of the bottom of one side of the frame column is welded with support bars which are symmetrically distributed, and the outer wall of one side of each support bar is tightly attached to the foundation.

Preferably, a vibration sensor is installed on the inner wall of one side of the mine hole, and the vibration sensor controls the first alarm and the second alarm through radio.

The utility model has the advantages that:

this protecting against shock ground pressure material stopper of design, double protection device has been adopted, first double protection device is for installing the anchor rope that the equidistance distributes, the anchor rope has length, tensile strength characteristics such as big, can support the material that the ore hole falls, second double protection device is the frame of installing the type of falling V frame top, when the material breaks through the anchor rope and falls on the frame, the material can fall the both sides of frame along the type of falling V frame top, avoided the material all to pile up at the top, double protection can bring sufficient chance of fleing for the staff.

Drawings

Fig. 1 is a schematic view of a partial structure of a rock burst prevention material stopper provided by the present invention;

fig. 2 is a front view of the overall structure of a rock burst prevention material stopper provided by the present invention;

fig. 3 is the utility model provides an anchor rope overall structure chart of protecting against rock burst material stopper.

In the figure: the device comprises a foundation 1, a limiting groove 2, a hydraulic expansion piece 3, a frame column 4, a first alarm 5, a first frame beam 6, an inverted V-shaped frame top 7, a first high-strength rib 8, a second high-strength rib 9, a buckle 10, a mine hole 11, an anchor cable 12, a second frame beam 13, a second alarm 14, a column 15 and a support bar 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, an anti-rock burst material stopper comprises spacing grooves 2 distributed equidistantly on the inner wall of the top of a foundation 1 and anchor cables 12 distributed equidistantly on the bottom of a mine hole 11, the inner wall of the bottom of the spacing groove 2 is connected with a hydraulic expansion piece 3 through bolts, the outer wall of the top of the hydraulic expansion piece 3 is fixedly connected with a frame column 4 through bolts, the outer wall of the bottom of one side of the frame column 4 is welded with support bars 16 distributed symmetrically, the outer wall of one side of each support bar 16 is tightly attached to the foundation 1, the size of the inner wall of the spacing groove 2 is matched with the diameter of the hydraulic expansion piece 3, a first alarm 5 is installed on the outer wall of one side of the frame column 4, the outer wall of the top of the frame column 4 is welded with a first frame beam 6, the outer wall of the top of the first frame beam 6 is welded with an inverted V-shaped frame top 7, the joint of the frame column 4 and the first frame beam 6 is welded with first high-strength ribs 8 and second high-strength ribs 9 distributed symmetrically, the joint of the first high-strength rib 8 and the second high-strength rib 9 is provided with a buckle 10, the outer walls of two ends of the anchor cable 12 are welded with second frame beams 13 which are symmetrically distributed, the outer wall of one side of each second frame beam 13 is provided with a second alarm 14, a dual protection device is adopted, the first heavy protection device is provided with the anchor cables 12 which are equidistantly distributed, the anchor cables 12 have the characteristics of long length, high tensile strength and the like, and can support materials falling from the mine hole 11, the second heavy protection device is provided with a frame with an inverted V-shaped frame top 7, when the anchor cables 12 are broken by the materials and fall onto the frame, the materials can fall onto two sides of the frame along the inverted V-shaped frame top 7, the materials are prevented from being totally accumulated on the top, and the dual protection can bring enough escape opportunities for workers;

two distance between the second frame roof beam 13 is greater than 11 distances in the mine hole, vibration sensor is installed to 11 one side inner walls in mine hole, and vibration sensor passes through the first alarm of radio control 5 and

second alarm

14, 11 bottom outer walls in mine hole are hugged closely to 12 top outer walls of anchor rope, 13 bottom outer walls of second frame roof beam all weld have the stand 15 of equidistance distribution.

The working principle is as follows: when a rock burst disaster occurs, a vibration sensor is installed on the inner wall of one side of the mine hole 11, the vibration sensor controls the first alarm 5 and the second alarm 14 to give an alarm, the anchor cables 12 which are installed on the top of the second frame beam 13 and distributed at equal intervals can support materials falling from the mine hole 11, when the materials break through the anchor cables 12 and fall onto the frame, the materials can fall onto two sides of the frame along the inverted V-shaped frame top 7, and therefore sufficient escape opportunities are brought to workers. The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The anti-impact ground pressure material limiter comprises limiting grooves (2) distributed at equal intervals on the inner wall of the top of a foundation (1) and anchor ropes (12) distributed at equal intervals on the bottom of an ore hole (11), and is characterized in that the inner wall of the bottom of each limiting groove (2) is connected with a hydraulic expansion piece (3) through bolts, the outer wall of the top of each hydraulic expansion piece (3) is fixedly connected with a frame column (4) through bolts, a first alarm (5) is installed on the outer wall of one side of each frame column (4), first frame beams (6) are welded on the outer wall of the top of each frame column (4), inverted V-shaped frame tops (7) are welded on the outer wall of the top of each first frame beam (6), first high-strength ribs (8) and second high-strength ribs (9) which are symmetrically distributed in an interleaving manner are welded at the joint of the frame columns (4) and the first frame beams (6), and second frame beams (13) which are symmetrically distributed are welded on the outer walls of the two ends of the anchor ropes (12), and a second alarm (14) is installed on the outer wall of one side of the second frame beam (13), and upright columns (15) which are distributed equidistantly are welded on the outer wall of the bottom of the second frame beam (13).

2. An anti-rock burst material limiter as claimed in claim 1, wherein a buckle (10) is installed at the joint of the first high-strength rib (8) and the second high-strength rib (9).

3. An anti-rock burst material limiter as claimed in claim 1, wherein the size of the inner wall of the limiting groove (2) is matched with the diameter of the hydraulic telescopic device (3).

4. An impact ground pressure prevention material stopper as claimed in claim 1, characterized in that the distance between two second frame beams (13) is larger than the distance of the mine hole (11), and the top outer wall of the anchor cable (12) clings to the bottom outer wall of the mine hole (11).

5. An impact ground pressure prevention material limiter according to claim 1, wherein the outer walls of the bottom of one side of the frame columns (4) are welded with symmetrically distributed support bars (16), and the outer walls of one side of the support bars (16) are tightly attached to the foundation (1).

6. An impact ground pressure prevention material stopper according to claim 1, characterized in that a vibration sensor is installed on one side of the inner wall of the mine hole (11), and the vibration sensor controls the first alarm (5) and the second alarm (14) through radio.