CN-224214207-U - Anchor net for anchoring support during coal mine mining

CN224214207UCN 224214207 UCN224214207 UCN 224214207UCN-224214207-U

Abstract

The utility model discloses an anchor net for anchoring support in coal mine mining, which belongs to the technical field of roadway support and comprises an anchor net main body and a plurality of anchor rods for uniformly fixing the anchor net main body, wherein an interception net is detachably arranged right below the anchor net main body, the coverage area of the interception net is larger than or equal to that of the anchor net main body, and the grid density of the interception net is larger than that of the anchor net main body. When the anchor net is used for supporting, as the interception net with larger grid density is additionally arranged under the anchor net, the interception net can effectively intercept broken stones falling from the top of the roadway, and the safety of underground operators is further ensured.

Inventors

LIU YINZHAO
ZHUANG YUAN
QU BIN
Hua Xiubo
DING RUQING
LIU HONGXIAO
WU HAOTIAN
LIU KE
SUN YANCONG

Assignees

兖矿能源集团股份有限公司

Dates

Publication Date: 20260508
Application Date: 20250630

Claims (8)

1. An anchor net for anchoring support during coal mine mining comprises an anchor net main body and anchor rods for uniformly fixing the anchor net main body at a plurality of positions; The novel anchor net is characterized in that an interception net is detachably arranged right below the anchor net main body, the coverage area of the interception net is larger than or equal to that of the anchor net main body, and the grid density of the interception net is larger than that of the anchor net main body.
2. The anchor net for anchoring and supporting during coal mining according to claim 1, wherein the interception net is a whole flexible net.
3. The anchor net for anchoring and supporting during coal mining according to claim 2, wherein the left end and the right end of the flexible net are hung and fixed at the bottom end of the vertical part of the main body of the anchor net through a plurality of hooks.
4. The anchor net for anchor support in coal mining according to claim 3, wherein the left and right ends of the flexible net are suspended and fixed at the bottom ends of the vertical sides of the main body of the anchor net by a plurality of first hooks, and the middle of the flexible net is suspended and fixed at the middle of the horizontal part of the main body of the anchor net by a plurality of second hooks, and the whole flexible net is inclined and lowered from the middle to the two sides of the main body of the anchor net.
5. The anchor net for anchoring and supporting during coal mining according to claim 1, wherein the interception net is a whole rigid net.
6. The anchor net for anchoring and supporting during coal mining according to claim 5, wherein the left end and the right end of the rigid net I are suspended and fixed at the bottom end of the vertical part of the main body of the anchor net through a plurality of hooks I.
7. The anchor net for anchoring and supporting during coal mining according to claim 1, wherein the interception net is two rigid nets which can be turned over or folded from the middle.
8. The anchor net for anchoring and supporting during coal mining according to claim 7, wherein the left end and the right end of the second rigid net are suspended and fixed at the bottom end of the vertical side of the main body of the anchor net through a plurality of first hooks, and the middle of the second rigid net is suspended and fixed at the middle of the horizontal part of the main body of the anchor net through a plurality of second hooks, and at the moment, the whole second rigid net is inclined and lowered from the middle to the two sides of the second rigid net.

Description

Anchor net for anchoring support during coal mine mining Technical Field The utility model relates to the technical field of roadway support, in particular to an anchor net for anchoring support during coal mine mining. Background In the coal mining process, roadway surrounding rock is easy to deform and collapse due to factors such as mining stress, geological structure movement and the like, and the safety production is seriously threatened. The anchor net support is used as the most common active support technology of the coal mine tunnel, and the stress of surrounding rock is transferred to the deep stable rock stratum through the synergistic effect of the anchor rods (ropes) and the metal net (or the reinforcing steel net), so that the self-supporting of the surrounding rock is realized. At present, although the anchor net can effectively realize bearing, the top of a roadway still can fall down some small stones according to old times, and the stones can fall down through the anchor net and then hit workers, even if the injury is not great, certain stress is caused to the workers, and further the workers are nervous and uneasy. Disclosure of utility model The utility model aims to solve the technical problem of providing an anchor net for anchoring and supporting during coal mine mining, which can intercept droops at the top of a roadway, so as to improve the safety of underground operators. The technical scheme of the utility model is realized as follows: An anchor net for anchoring support during coal mine mining comprises an anchor net main body and anchor rods for uniformly fixing the anchor net main body at a plurality of positions; an interception net is detachably arranged right below the anchor net main body, the coverage area of the interception net is larger than or equal to that of the anchor net main body, and the grid density of the interception net is larger than that of the anchor net main body. Through adopting above-mentioned scheme, this anchor net is when strutting, owing to has set up the interception net that net density is bigger under it, and this interception net can effectively intercept the garrulous small stone that tunnel top whereabouts, further guarantees the safety of borehole operation personnel. As a preferred implementation mode of the anchor net for anchoring and supporting during coal mine mining, when the roadway width is narrow, a whole flexible net is used as an interception net, such as high-strength polyester fiber or nylon, and the left end and the right end of the flexible net are suspended and fixed at the bottom end of the vertical part of the anchor net main body through a plurality of hooks, so that the flexible net has good ductility and buffering performance, and is suitable for local small-range interception and interception scenes needing buffering. Or further optimizing that the left end and the right end of the flexible net are suspended and fixed at the bottom ends of the vertical sides of the main body of the anchor net through a plurality of hooks, and simultaneously the middle of the flexible net is suspended and fixed at the middle of the horizontal part of the main body of the anchor net through a plurality of hooks, at the moment, the whole flexible net is inclined and lowered from the middle to the two sides of the whole flexible net to form an inverted V-shaped structure, so that scraps can slide to the two sides conveniently, and accumulation is avoided. As a preferred implementation mode of the anchor net for anchoring and supporting during coal mine mining, when the roadway width is wider, a whole rigid net I is used as an interception net, such as a metal screen or a high-strength plastic net, and the left end and the right end of the rigid net I are suspended and fixed at the bottom end of the vertical part of the anchor net main body through a plurality of hooks I, so that the anchor net has better use strength and is suitable for local small-range interception and scenes needing buffering interception. Or further optimizing to use two rigid nets capable of overturning or turning over from the middle as interception nets, such as split metal nets and the like, wherein the left end and the right end of the rigid net are suspended and fixed at the bottom end of the vertical side of the main body of the anchor net through a plurality of hooks I, meanwhile, the middle of the rigid net is suspended and fixed at the middle of the horizontal part of the main body of the anchor net through a plurality of hooks II, at the moment, the whole rigid net is inclined and lowered from the middle to the two sides of the rigid net to form an inverted V-shaped structure, so that scraps can slide to the two sides conveniently, accumulation is avoided, meanwhile, the overturning design is convenient to overhaul or replace, and the device is suitable for a scene needing to clean scraps or adjust interception angles regularly. After the technical scheme is