CN213654839U - Explosion-free top-cutting edge-empty roadway-protecting fast grouting hole sealing device - Google Patents
Explosion-free top-cutting edge-empty roadway-protecting fast grouting hole sealing device Download PDFInfo
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- CN213654839U CN213654839U CN202022316949.6U CN202022316949U CN213654839U CN 213654839 U CN213654839 U CN 213654839U CN 202022316949 U CN202022316949 U CN 202022316949U CN 213654839 U CN213654839 U CN 213654839U
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Abstract
The utility model provides an exempt from to explode and cut top along empty quick slip casting hole sealing device that protects lane, be applied to and cut the apical pore, it is configured to pour into static breaker to cut the apical pore, including slip casting feed liquor pipe, slip casting fluid-discharge tube and hole sealing piece, slip casting feed liquor pipe sets up with the slip casting fluid-discharge tube side by side, slip casting feed liquor pipe, slip casting fluid-discharge tube homogeneous end stretch out and cut apical pore and the other end stretches into and cut the apical pore setting, the hole sealing piece is used for the shutoff to cut the drill way in apical pore, slip casting feed liquor pipe, its one end that stretches out and cuts the apical pore all is equipped with the gate. The top-cutting quick grouting device is simple in structure, convenient to use and low in manufacturing cost, is matched with a grouting pump for use, can realize quick grouting and hole sealing of a presplitting top-cutting static crushing agent, effectively improves the operation efficiency, reduces safety risks caused by manual grouting, and is high in practicability and easy to popularize and use.
Description
Technical Field
The utility model relates to a coal seam mining technical field particularly, relates to an exempt from to explode and cut top along empty hole protection lane quick slip casting hole sealing device.
Background
With the increase of mining intensity of a mine, the degree of advance of a coal face is accelerated, and in order to relieve the tension contradiction of mining and taking over, roof cutting, pressure relief and gob-side entry retaining are generally adopted in an underground coal mine. In the implementation process, a roof cutting drilling machine is often adopted to construct a row of pre-splitting roof cutting holes close to a goaf side roof along a working face air roadway, static crushing agent slurry is injected into the roof cutting holes in advance and the holes are sealed, after the coal face is pushed, the static crushing agent undergoes chemical reaction to generate high temperature and high pressure, the goaf roof is broken and cracked, and the goaf roof naturally collapses along a roof cutting line, so that the pressure of the goaf roof on the lower roadway is released. The static breaker thick liquid after will stirring is packed into in the plastic bag and is sent into to the liquid mode is annotated to the tradition, wastes time and energy, and there is the personal injury risk to the operating personnel in the plastic bag damage in the installation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an exempt from to explode and cut top along the quick slip casting hole sealing device in sky lane that protects, its simple structure, convenient to use, low in manufacturing cost, supporting grouting pump uses, can realize the quick slip casting and the hole sealing of the static breaker of presplitting roof cutting, effectively improves the operating efficiency, reduces the safe risk that artifical slip casting brought, and the practicality is strong, easily uses widely.
The embodiment of the utility model discloses a realize through following technical scheme:
the utility model provides an exempt from to explode and cut top along empty quick slip casting hole sealing device that protects lane, be applied to and cut the apical pore, it is configured to pour into static breaker to cut the apical pore, including slip casting feed liquor pipe, slip casting fluid-discharge tube and hole sealing piece, slip casting feed liquor pipe sets up with the slip casting fluid-discharge tube side by side, slip casting feed liquor pipe, slip casting fluid-discharge tube homogeneous end stretch out and cut apical pore and the other end stretches into and cut the apical pore setting, the hole sealing piece is used for the shutoff to cut the drill way in apical pore, slip casting feed liquor pipe, its one end that stretches out and cuts the apical pore all is equipped with the gate.
Furthermore, the pipe orifice of the grouting liquid inlet pipe extending into the cut top hole is close to the hole sealing part, and the pipe orifice of the grouting liquid outlet pipe extending into the cut top hole is close to the hole bottom of the cut top hole.
Further, the hole sealing piece comprises a liquid absorption body made of a water absorption material, the liquid absorption body is wrapped on the grouting liquid inlet pipe and the grouting liquid outlet pipe, and the liquid absorption body is configured to be injected with a thunderstorm material.
Further, the hole sealing piece comprises a cotton yarn body, the cotton yarn body is wrapped by the grouting liquid inlet pipe and the grouting liquid outlet pipe, and the cotton yarn body is configured to be placed at the hole opening of the top cutting hole and then be injected with the wave-induced lightning material.
Furthermore, the cotton yarn body is arranged in a cylinder shape, and the outer diameter of the cotton yarn body is smaller than the inner diameter of the hole of the top cutting hole.
Furthermore, a part of pipelines of the grouting liquid inlet pipe wrapped by the liquid absorbing body and a part of pipelines of the grouting liquid outlet pipe wrapped by the liquid absorbing body are arranged in a hard pipe.
Further, the hard tube comprises an aluminum tube.
Furthermore, the part of the pipeline of the grouting liquid inlet pipe extending into the cut top hole and the part of the pipeline of the grouting liquid outlet pipe extending into the cut top hole are both made of PVC pipes.
The utility model discloses technical scheme has following advantage and beneficial effect at least: the top-cutting quick grouting device is simple in structure, convenient to use and low in manufacturing cost, is matched with a grouting pump for use, can realize quick grouting and hole sealing of a presplitting top-cutting static crushing agent, effectively improves the operation efficiency, reduces safety risks caused by manual grouting, and is high in practicability and easy to popularize and use.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a bottom view of the explosion-free roof-cutting and roadway-protecting fast grouting hole sealing device according to the embodiment of the present invention;
fig. 2 is a side view of the embodiment of the utility model provides an explosion-free roof edge gob-side entry protection quick grouting hole sealing device.
Icon: 10-explosion-free roof cutting and roadway protecting along the empty part fast grouting hole sealing device, 100-grouting liquid inlet pipe, 200-grouting liquid discharge pipe, 300-hole sealing piece, 400-gate valve and 20-roof cutting hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description of the present invention and simplification, but the indication or suggestion that the device or element to be referred to must have a specific position, be constructed and operated in a specific position, and therefore, should not be interpreted as a limitation of the present invention.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 and 2, an explosion-free roof cutting and roadway protecting fast grouting hole sealing device 10 is applied to a roof cutting hole 20, the roof cutting hole 20 is configured to be injected with a static breaker, and includes a grouting liquid inlet pipe 100, a grouting liquid discharge pipe 200 and a hole sealing member 300, the grouting liquid inlet pipe 100 and the grouting liquid discharge pipe 200 are arranged side by side, one end of each of the grouting liquid inlet pipe 100 and the grouting liquid discharge pipe 200 extends out of the roof cutting hole 20, the other end of each of the grouting liquid inlet pipe 100 and the grouting liquid discharge pipe 200 extends into the roof cutting hole 20, the hole sealing member 300 is used for sealing a hole opening of the roof cutting hole 20, and one end of each of the grouting liquid inlet pipe 100 and the grouting liquid discharge pipe 200 extending out of the roof cutting hole 20 is provided with.
In the application of the explosion-free roof cutting and roadway protecting fast grouting hole sealing device 10, the grouting liquid inlet pipe 100, the grouting liquid outlet pipe 200 and the hole sealing piece 300 are firstly preliminarily fixed, then the grouting liquid inlet pipe, the grouting liquid outlet pipe and the hole sealing piece are placed into the pre-drilled roof cutting hole 20, the sealing piece is positioned at the position of the hole opening of the roof cutting hole 20, and the hole opening of the roof cutting hole 20 is firmly sealed by the hole sealing piece 300 by adopting a corresponding means. The stirred static breaker slurry is then injected into the topping hole 20 from the grouting liquid inlet pipe 100 by using a grouting pump and related piping until the static breaker slurry begins to overflow from the grouting liquid outlet pipe 200 with respect to the corresponding gate valve 400. This grouting process is accompanied by opening and closing of the corresponding gate valve 400.
In the above embodiment, there is a limitation that the level of the nozzle of the grouting inlet pipe 100 in the top-cutting hole 20 is set lower than the level of the nozzle of the grouting outlet pipe 200 in the top-cutting hole 20. Preferably, the grouting liquid inlet pipe 100 is disposed near the hole sealing member 300, and the grouting liquid outlet pipe 200 is disposed near the bottom of the hole cutting hole 20.
In a preferred embodiment, the sealing member 300 is made of a cotton yarn material and a Golay material to achieve a stable sealing of the opening of the cut top hole 20. The cotton yarn body is wrapped by the grouting liquid inlet pipe 100 and the grouting liquid outlet pipe 200, and the cotton yarn body is placed at the hole of the top cutting hole 20 and then is injected with the wave-induced lightning material. Wherein, the cotton yarn body is the cylinder setting, and the external diameter of the cotton yarn body is less than the hole internal diameter setting preferred of top hole 20, makes things convenient for the cotton yarn body to put into the orifice department of top hole 20 for the first time. When the explosion-free roof cutting and roadway protection construction is implemented on the fully mechanized mining face, the static crushing agent and water are stirred in proportion in advance, and the prepared slurry is injected into the pre-splitting roof cutting hole 20 for hole sealing reaction.
The method comprises the following specific steps: preparing a rapid hole sealing and grouting device, wrapping the hole sealing sections of the grouting inlet and discharge pipes by using a cotton yarn body, and inserting the viscous full-wave detonator into the top cutting hole 20 for fixing; starting a grouting pump, pouring the stirred static crushing agent slurry, opening a gate valve 400 of a grouting liquid inlet pipe 100 and a gate valve 400 of a grouting liquid discharge pipe 200, filling the grouting liquid inlet pipe 100 with the connecting pipe, stopping the grouting pump when the grouting liquid discharge pipe 200 discharges the slurry, and closing the gate valve 400 of the grouting liquid inlet pipe 100 and the gate valve 400 of the grouting liquid discharge pipe 200. This operation is repeated again for the next borehole slip.
It should be noted that, due to the elastic properties of the cotton yarn body, it is also understood that the cotton yarn body has an outer diameter greater or slightly greater than the inner diameter of the hole of the top-cutting hole 20.
More, the cotton yarn body is used for absorbing the thunderbolt material so as to enable the opening of the top cutting hole 20 to be sealed firmly. The cotton yarn body can also adopt other forms of substitutes, such as sponge and other materials, and can be summarized as a liquid absorption body made of absorption materials.
In a preferred embodiment, the pipe material of grouting liquid inlet pipe 100 and grouting liquid outlet pipe 200 is selected. The partial pipeline of the grouting liquid inlet pipe 100 positioned in the liquid absorbing body package and the partial pipeline of the grouting liquid outlet pipe 200 positioned in the liquid absorbing body package are arranged in a hard pipe, and the hard pipe can adopt more forms such as an aluminum pipe and an iron pipe; the partial pipeline of the grouting liquid inlet pipe 100 extending into the top cutting hole 20 and the partial pipeline of the grouting liquid outlet pipe 200 extending into the top cutting hole 20 are made of PVC pipes.
The beret material is an organic polymer double-liquid type grouting material, and the double-component material is injected into a broken rock mass through a special pneumatic grouting pump and a mixing gun, and then reacts rapidly to solidify with the rock mass to generate a high-strength and tough consolidated body, so that the rock mass is consolidated or water burst cracks are blocked. Approximately in 1-2h, the portion of the tubing that is in the fluid absorbent wrap should be designed for high temperature and pressure resistance. Therefore, the aluminum pipe is preferred, has certain flexibility and low price, reduces the manufacturing cost, and has good practical use effect.
The common PVC pipe is adopted as the part of the pipeline extending into the top cutting hole 20 mainly for reducing the cost, easily selecting materials, widely applying on the field at present and further reducing the cost.
The above-mentioned wave-leine material also can be selected from other chemical liquid forms capable of implementing the function, and can implement firm sealing at the hollow portion of the top-cutting hole 20.
In conclusion, by adopting the explosion-free roof cutting and roadway protecting fast grouting and hole sealing device 10, the device is simple in structure, convenient to use and low in manufacturing cost, can be used with a grouting pump, can realize fast grouting and hole sealing of a presplitting roof cutting static crushing agent, effectively improves the operation efficiency, reduces the safety risk caused by manual grouting, and is high in practicability and easy to popularize and use.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. An explosion-free roof-cutting roadway-protecting fast grouting hole sealing device applied to a roof-cutting hole, wherein the roof-cutting hole is configured to be injected with a static crushing agent, and the device is characterized by comprising:
the grouting liquid inlet pipe and the grouting liquid outlet pipe are arranged side by side, one end of each of the grouting liquid inlet pipe and the grouting liquid outlet pipe extends out of the top cutting hole, and the other end of each of the grouting liquid inlet pipe and the grouting liquid outlet pipe extends into the top cutting hole;
the hole sealing piece is used for sealing the orifice of the top cutting hole; one end of the grouting liquid inlet pipe and one end of the grouting liquid discharge pipe, which extend out of the top cutting hole, are provided with
And (4) a gate valve.
2. The explosion-free roof cutting and roadway protecting fast grouting hole sealing device according to claim 1, is characterized in that: the grouting liquid inlet pipe extends into the cut top hole, and the pipe orifice of the grouting liquid inlet pipe is close to the hole sealing piece, and the grouting liquid outlet pipe extends into the cut top hole, and the pipe orifice of the grouting liquid outlet pipe is close to the hole bottom of the cut top hole.
3. The explosion-free roof cutting and roadway protecting fast grouting hole sealing device according to claim 1, is characterized in that: the hole sealing part comprises a liquid absorption body made of a water absorption material, the liquid absorption body wraps the grouting liquid inlet pipe and the grouting liquid outlet pipe, and the liquid absorption body is configured to be a lightning source injection material.
4. The explosion-free roof cutting and roadway protecting fast grouting hole sealing device according to claim 3, characterized in that: the hole sealing piece comprises cotton yarn bodies, the cotton yarn bodies are arranged by wrapping the grouting liquid inlet pipe and the grouting liquid outlet pipe, and the cotton yarn bodies are configured to be placed at the hole openings of the top cutting holes and then be filled with a wave-induced lightning material.
5. The explosion-free roof cutting and roadway protecting fast grouting hole sealing device according to claim 4, characterized in that: the cotton yarn body is arranged in a cylinder shape, and the outer diameter of the cotton yarn body is smaller than the inner diameter of the hole of the top cutting hole.
6. The explosion-free roof cutting and roadway protecting fast grouting hole sealing device according to claim 3, characterized in that: and the partial pipeline of the grouting liquid inlet pipe positioned in the liquid absorbing body package and the partial pipeline of the grouting liquid outlet pipe positioned in the liquid absorbing body package are arranged in a hard pipe manner.
7. The explosion-free roof cutting and roadway protecting fast grouting hole sealing device according to claim 6, is characterized in that: the hard tube comprises an aluminum tube.
8. The explosion-free roof cutting and roadway protecting fast grouting hole sealing device according to claim 3 or 6, characterized in that: and the part of the pipeline of the grouting liquid inlet pipe extending into the top cutting hole and the part of the pipeline of the grouting liquid outlet pipe extending into the top cutting hole are both composed of PVC pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022316949.6U CN213654839U (en) | 2020-10-16 | 2020-10-16 | Explosion-free top-cutting edge-empty roadway-protecting fast grouting hole sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022316949.6U CN213654839U (en) | 2020-10-16 | 2020-10-16 | Explosion-free top-cutting edge-empty roadway-protecting fast grouting hole sealing device |
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| Publication Number | Publication Date |
|---|---|
| CN213654839U true CN213654839U (en) | 2021-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022316949.6U Active CN213654839U (en) | 2020-10-16 | 2020-10-16 | Explosion-free top-cutting edge-empty roadway-protecting fast grouting hole sealing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982578A (en) * | 2021-10-28 | 2022-01-28 | 彬县水帘洞煤炭有限责任公司 | Plugging device and method for coal mine roof cutting |
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2020
- 2020-10-16 CN CN202022316949.6U patent/CN213654839U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982578A (en) * | 2021-10-28 | 2022-01-28 | 彬县水帘洞煤炭有限责任公司 | Plugging device and method for coal mine roof cutting |
| CN113982578B (en) * | 2021-10-28 | 2023-11-03 | 彬县水帘洞煤炭有限责任公司 | Plugging device and method for coal mine roof cutting |
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