CN217327382U - Integrated excavation working face head-on rib-splitting prevention temporary support system - Google Patents
Integrated excavation working face head-on rib-splitting prevention temporary support system Download PDFInfo
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- CN217327382U CN217327382U CN202220749115.0U CN202220749115U CN217327382U CN 217327382 U CN217327382 U CN 217327382U CN 202220749115 U CN202220749115 U CN 202220749115U CN 217327382 U CN217327382 U CN 217327382U
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Abstract
The utility model discloses a combine and dig working face and prevent wall caving temporary support system that rises, including the hydraulic pressure forestope, the hydraulic pressure forestope is including protecting the roof, the hydraulic pressure forestope still turns over the board before including, preceding turn over the board with the protection roof is connected, and is located the front end of protection roof, preceding turn over the board and be used for supporting the working face and meet the head. The utility model discloses a preceding board that turns over can strengthen the support to the working face head-on, has strengthened the temporary support to the combine dig the empty group of working face head-on.
Description
Technical Field
The utility model relates to a supporting device's technical field especially relates to a combine and dig working face head-on and prevent group temporary support system.
Background
The geological structure is a form left after a rock formation or a rock mass is deformed or displaced by internal and external stresses of the earth. Most notably in areas of stratified rock distribution. In the areas of magma and metamorphic rocks, the rock is also characterized by folds, fractures, cleavages, and other planar and linear structures. Coal seam occurrence conditions, geological structures and coal seam production states have important influence on coal mining and roof tunneling control, and particularly have very important influence on head-on support of a tunneling working face. Various geological structures and mine pressure display conditions can be met during the tunneling operation of the underground coal mine, and with the severe safety situation and the improvement of the requirement of safe production environment, the correct and effective temporary support is used during the tunneling operation of the tunneling working face of the underground coal mine, which is very important. Particularly, the phenomena of crushing, separation and caving of the roadway roof of the tunneling working face affected by the fault can occur to different degrees, and the mine pressure is very obvious along with the deepening of the working face. During the tunneling support period, the accidents of face-to-face caving, coal dropping, caving of the side part, injury to people and the like exist, the tunneling working progress is influenced, and meanwhile, great potential safety hazards are generated, so that the research on the improvement, application and upgrading of the temporary support technology of the fully-mechanized working face is significant to the safety of the working face of the fully-mechanized coal mining machine for the well worker.
As shown in fig. 1, most of the existing airborne foreheads are only temporarily supported in the form of a protective roof 1'. The supporting effect is poor, the protection of the head-on hollow side and the top area of the fully mechanized excavation face is insufficient, the protection is not carried out on the side part of the roadway and the shoulder pit, and the area becomes a protection blind area and a region with large hidden danger risks.
Therefore, there is a need to design a temporary support system for preventing rib spalling on the head-on side of the fully-mechanized excavation face, which can enhance the protection of the head-on empty side and the top area of the fully-mechanized excavation face and solve the problem that no protection facilities are provided on shoulder pits and side parts.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's not enough, provide one kind and strengthen to combine to dig the empty group of working face head on, the regional protection in top, solve shoulder nest and group portion do not have protective device combine to dig the working face head on prevent the wall stripping temporary support system.
The technical scheme of the utility model a combine and dig working face head-on and prevent wall caving temporary support system, including the hydraulic pressure forestope, the hydraulic pressure forestope is including protecting the roof, the hydraulic pressure forestope still turns over the board before including, preceding turn over the board with the protection roof is connected, and is located the front end of protection roof, preceding turn over the board and be used for supporting the working face head-on.
The front turning plate presses the advanced top net to the head of the working face.
Furthermore, the front turning plate is connected with at least two supporting cross rods, and the supporting cross rods press the advanced top net towards the head of the working face.
Further, the advanced top net comprises three sheets;
the first advancing top net is laid on a working surface top plate, and the first advancing top net is pressed towards the working surface top plate by the protective top plate;
and a second advance top net and a third advance top net are laid on the head of the working face.
Further, the first advance roof net is pulled below the permanent support area.
Further, the device also comprises an advanced upper net, wherein the advanced upper net is laid on the working surface upper part.
The upper part front canopy presses the upper part net to the working surface upper part.
Further, the upper front canopy comprises an upper steel pipe and a lower steel pipe, the upper steel pipe is placed in an area above the arch base line of the top plate, and the distance between the lower steel pipe and the roadway bottom plate is not less than 1.2 m.
Further, the distance between the upper steel pipe and the lower steel pipe is 1-1.2 m.
Further, the upper steel pipe is installed to the shoulder socket at the height of the anchor rod.
After adopting above-mentioned technical scheme, have following beneficial effect:
the utility model discloses an in the embodiment, can strengthen the support to the working face head-on through preceding board that turns over, strengthened to combining the temporary support of digging the working face head-on sky group.
The utility model discloses a in another embodiment, through the cooperation of leading top net with preceding board that turns over, can further strengthen the working face head-on.
In another embodiment of the present invention, the roadway wall and the shoulder pit can be protected by the front wall net and the front canopy of the wall.
Drawings
The disclosure of the present invention will become more readily understood by reference to the drawings. It should be understood that: these drawings are for illustrative purposes only and are not intended to limit the scope of the present disclosure. In the figure:
fig. 1 is a schematic view of a conventional temporary bracing apparatus;
fig. 2 is a schematic working diagram of a head-on rib-spalling prevention temporary support system of the fully mechanized excavation face according to an embodiment of the present invention;
fig. 3 is a schematic view of the working face head-on support of the fully mechanized excavation working face head-on rib-spalling prevention temporary support system in an embodiment of the present invention;
fig. 4 is a schematic diagram of the working face side supporting of the fully mechanized excavation working face head-on rib-spalling prevention temporary supporting system in an embodiment of the present invention.
Reference numerals comparison table:
hydraulic front cantilever 1: the protective roof 11, the front turning plate 12 and the support cross bar 13;
advanced top net 2: a first leading top net 21, a second leading top net 22 and a third leading top net 23;
upper front cantilever 4: an upper steel pipe 41, a lower steel pipe 42, and an upper clip 43;
a front upper net 3 and an excavator 5.
Detailed Description
The following describes the present invention with reference to the accompanying drawings.
It is easily understood that, according to the technical solution of the present invention, a plurality of structural modes and implementation modes that can be mutually replaced by those of ordinary skill in the art can be achieved without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are only exemplary illustrations of the technical solutions of the present invention, and should not be construed as limiting or restricting the technical solutions of the present invention in its entirety or as a limitation of the present invention.
The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms.
The utility model discloses an in the embodiment, as shown in fig. 2, combine and dig working face head-on and prevent group temporary support system, including hydraulic forestope 1, hydraulic forestope 1 is including protecting roof 11, and hydraulic forestope 1 still includes preceding board 12 that turns over, and preceding board 12 that turns over is connected with protecting roof 11 to be located the front end of protecting roof 11, preceding board 12 that turns over is used for supporting the working face head-on.
Specifically, as shown in fig. 2, the excavator 5 excavates a work surface, which generates a large amount of scum that is deposited on a floor, and the coal wall facing the work surface is typically at an angle of 85 °. During the excavation process, the working face top plate and the head-on have the phenomena of crushing, separation and collapse at different degrees.
The hydraulic forepoling bar 1 in the embodiment comprises a protective top plate 11 and a front turning plate 12, wherein the protective top plate 11 is used for supporting a working face top plate, the front turning plate 12 is connected to the front end of the protective top plate 11 and inclines from top to bottom along the inclination direction of the working face head, and the front turning plate 12 can enhance the protection of the working face head. By means of supporting of the protective top plate 11 and the forward turning plate 12, protection of the working face top plate and head-on can be enhanced, and potential safety hazards are reduced.
Further, as shown in fig. 3, the device also comprises an advanced top net 2, wherein the advanced top net 2 is laid on the head of the working face, and the front turning plate 12 presses the advanced top net 2 to the head of the working face.
The advance top net 2 can be laid on the upper half part of the head of the working face and is used for preventing the phenomena of crushing, layer separation and collapse. When the device is installed, the protective top plate 11 and the front turning plate 12 jack up the front top net 2 and press the front top net to the head of a working face.
When the working face is faced and the conditions of rib spalling, roof fall and the like occur, the front turning plate 12 is matched with the advanced jacking net 2 to seal the working face, and the operating personnel can not be hurt by the lump coal and the small coal.
Further, as shown in fig. 3, at least two support bars 13 are connected to the front turning plate 12, and the support bars 13 press the front roof net 2 to the head of the working face.
The supporting cross bars 13 can increase the supporting width of the advancing top net 2, so that the advancing top net 2 is pressed onto the head of the working face in a larger area.
Alternatively, the number of the support bars 13 may be two, or more than two.
Further, as shown in fig. 2, the front top net 2 includes three sheets;
wherein, the first advancing top net 21 is laid on the top plate of the working surface, and the protective top plate 11 presses the first advancing top net 21 to the top plate of the working surface;
a second advancing top wire 22 and a third advancing top wire 23 are laid on the head of the working face.
The first advance top net 21 can not only realize the reinforced protection of the working face top plate, but also realize the positioning of the advance top net 21. The first leading top net 21 is integrally connected with the second leading top net 22 and the third leading top net 23. After the first advancing top net 21 is pressed to the top plate of the working face, the upper ends of the second advancing top net 22 and the third advancing top net 23 are also tightly attached towards the head of the working face, and then the second advancing top net 22 and the third advancing top net 23 are pressed on the head of the working face through the front turning plate 12, so that the fixation of the whole advancing top net 2 is realized.
Alternatively, the advance roof net 2 may be in other numbers.
Further, as shown in fig. 2, the first advance roof net 21 is pulled below the permanent support area. The first advance top net 21 can be pulled to the permanent supporting area through a special tool and is fixedly connected with the permanent supporting area, so that the advance top net 2 is positioned.
Further, as shown in fig. 3-4, the utility model also comprises an ultra-front upper net 3, and the ultra-front upper net 3 is laid on the working surface upper part. The front upper net 3 can protect the upper part of the working face, and the coal blocks on the upper part can be prevented from hurting workers.
Further, as shown in fig. 3 to 4, an upper front canopy 4 is included, and the upper front canopy 4 presses the upper net 3 against the upper portion of the working face.
Specifically, the upper front canopy 4 extends along the length direction of the upper, and at least two upper front canopy 4 are provided, so that the larger-area super front upper net 3 can be pressed to the upper part of the working face.
Further, as shown in fig. 4, the upper front canopy 4 includes an upper steel pipe 41 and a lower steel pipe 42, the upper steel pipe 41 is placed in the area above the roof arch base line, the distance between the lower steel pipe 42 and the roadway floor is not less than 1.2m, and the upper steel pipe 41 and the lower steel pipe 42 are connected with the super front upper net 3 through upper clamps.
Preferably, the distance between the upper steel pipe 41 and the lower steel pipe 42 is 1-1.2 m.
Preferably, the upper steel pipe 41 is installed to the height of the anchor rod at the shoulder socket, so that the problem that no protection facilities are arranged at the shoulder socket and the upper part is solved.
In a preferred embodiment of the present invention, after the roadheader cuts according to the design process requirements, the special tool for knocking help and asking for ejection is used to knock help and asking for ejection according to the standard work flow of knocking help and asking for ejection, the special tool is used to pull the advanced ejection net 2 to a permanent area, and the 2 advanced ejection nets 2 are laid and connected to be three in total, and two advanced ejection nets 3 are laid and connected in the same manner. The advanced top net 2 is ejected by using a special tool, the hydraulic front canopy 1 is extended, the front turning plate 12 is extended, the advanced top net 2 is ejected to the rear of the working head, and the cross rod 13 is supported and installed in place. And installing the upper front canopy 4 of the two sides according to the standard requirement, and ejecting the upper front canopy to the upper part of the working face. The support can be supported when the support is installed and protected in place.
The utility model discloses a combine and dig the working face and prevent that rib temporary support system initiatively defends to the guarantee operation environment safe and reliable of initiative to the regional comprehensive protection that forms of the empty group of working face head-on has ensured operation safety and environmental safety.
What has been described above is merely the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, on the basis of the principle of the present invention, several other modifications can be made, and the protection scope of the present invention should be considered.
Claims (10)
1. The utility model provides a combine and dig working face head-on and prevent wall caving temporary support system, includes hydraulic forestope (1), hydraulic forestope (1) is including protection roof (11), its characterized in that, hydraulic forestope (1) still includes preceding board (12) that turns over, preceding board (12) turn over with protection roof (11) are connected to be located the front end of protection roof (11), preceding board (12) turn over is used for supporting the working face head-on.
2. The head-on rib-caving prevention temporary support system for the fully-mechanized excavation face of claim 1, further comprising an advanced top net (2), wherein the advanced top net (2) is laid on the head-on of the face, and the front turning plate (12) presses the advanced top net towards the head-on of the face.
3. The head-on caving prevention temporary support system of the fully mechanized excavation face of claim 2, wherein at least two support cross bars (13) are connected to the front turning plate (12), and the support cross bars (13) press the advancing top net (2) towards the head-on working face.
4. The head-on rib-caving prevention temporary support system of the fully mechanized excavation face of claim 2, wherein the advance top net (2) comprises three sheets,
wherein a first advancing top net (21) is laid on a working surface top plate, and the protective top plate (11) presses the first advancing top net (21) to the working surface top plate;
and a second advancing top net (22) and a third advancing top net (23) are laid on the head of the working face.
5. The integrated mining face head-on rib caving temporary support system according to claim 4, wherein the first advance top net (21) is pulled below the permanent support area.
6. The integrated excavation face-to-face anti-caving temporary support system according to claim 1, further comprising an advanced upper net (3), wherein the advanced upper net (3) is laid on the face upper part.
7. The integrated excavation face-to-face caving prevention temporary support system of claim 6, further comprising a top front canopy (4), wherein the top front canopy (4) presses the super front canopy net (3) to the working face top.
8. The head-on caving prevention temporary support system of the fully mechanized excavation face of claim 7, wherein the caving portion forepoling (4) comprises an upper steel pipe (41) and a lower steel pipe (42), the upper steel pipe (41) is placed in the area above the arch base line of the top plate, and the lower steel pipe (42) is not less than 1.2m from the roadway bottom plate.
9. The integrated excavation face-head rib prevention temporary support system according to claim 8, wherein the distance between the upper steel pipe (41) and the lower steel pipe (42) is 1-1.2 m.
10. The integrated excavation face-side caving prevention temporary support system of claim 8, wherein the upper steel pipe (41) is installed to a height of an anchor rod at the shoulder socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220749115.0U CN217327382U (en) | 2022-03-31 | 2022-03-31 | Integrated excavation working face head-on rib-splitting prevention temporary support system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220749115.0U CN217327382U (en) | 2022-03-31 | 2022-03-31 | Integrated excavation working face head-on rib-splitting prevention temporary support system |
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| CN217327382U true CN217327382U (en) | 2022-08-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117868926A (en) * | 2024-03-11 | 2024-04-12 | 山西阳煤集团南岭煤业有限公司 | Advanced temporary support device and process for working face of heading machine |
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2022
- 2022-03-31 CN CN202220749115.0U patent/CN217327382U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117868926A (en) * | 2024-03-11 | 2024-04-12 | 山西阳煤集团南岭煤业有限公司 | Advanced temporary support device and process for working face of heading machine |
| CN117868926B (en) * | 2024-03-11 | 2024-05-10 | 山西阳煤集团南岭煤业有限公司 | Advanced temporary support device and process for working face of heading machine |
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