CN213392269U - Novel coal mine underground sealing wall using 3D printing technology - Google Patents
Novel coal mine underground sealing wall using 3D printing technology Download PDFInfo
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- CN213392269U CN213392269U CN202022300345.2U CN202022300345U CN213392269U CN 213392269 U CN213392269 U CN 213392269U CN 202022300345 U CN202022300345 U CN 202022300345U CN 213392269 U CN213392269 U CN 213392269U
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- 238000010146 3D printing Methods 0.000 title claims abstract description 40
- 239000003245 coal Substances 0.000 title claims abstract description 21
- 238000005516 engineering process Methods 0.000 title claims abstract description 10
- 238000007789 sealing Methods 0.000 title claims description 23
- 238000005507 spraying Methods 0.000 claims abstract description 30
- 239000011325 microbead Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 3
- 239000002861 polymer material Substances 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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Abstract
The utility model discloses a novel coal mine underground airtight wall utilizing 3D printing technology, which is arranged at a position needing temporary or permanent airtight in a coal mine underground, and comprises a 3D printing wall body, an expanded and vitrified micro bubble spraying layer, a concrete spraying layer, an outer decorative layer and a fixed disc; the fixed disc and the 3D printing wall are integrally printed and formed by an industrial 3D printer, and the 3D printing wall is positioned between the left and right expanded and vitrified micro bubble spraying layers; the material used by the 3D printing wall body is a high-tech polymer material for buildings; the spraying sequence of each spraying layer on the surface of the 3D printing wall body is as follows: firstly, an expanded and vitrified small ball spraying layer, then a concrete spraying layer and finally an outer decorative layer are arranged; the fixed disc is fixed on the top of the roadway, the bottom plate and two sides of the roadway by anchor rods and anchor cables. The utility model discloses a colliery is airtight wall preparation in pit takes shape fast, high-efficient swift, fire behavior is good, strong adaptability, save time, and sealed effect is reliable stable.
Description
Technical Field
The utility model relates to a coal mine safety technical field, specific novel colliery is airtight wall in pit that utilizes 3D to print technique that says so.
Background
The stability of underground ventilation of a coal mine is the first important task for ensuring safe production of the coal mine, and temporary and permanent sealing walls of the coal mine are important ventilation structures. When a new excavation work is carried out, a sealing wall needs to be quickly constructed at a corresponding sealing position so as to ensure the stable ventilation and normal production activities. Therefore, the method has important significance for the safe production of coal mines by efficiently and quickly constructing the sealing wall with good sealing performance and high service performance.
At present, the underground coal mine sealing wall in China is mainly constructed by using masonry and concrete. The method has long time consumption, high cost, more personnel, low efficiency and poor sealing effect. Meanwhile, the later-stage airtight wall is poor in stability and difficult to maintain, and is easy to deform under the action of mine pressure and external force. Therefore, a novel underground coal mine sealing wall which is high in forming speed, efficient, rapid, good in fireproof performance, strong in adaptability, time-saving and reliable and stable in sealing effect needs to be provided.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an avoid the problem that above-mentioned prior art exists, provide a take shape fast, high-efficient swift, fire behavior is good, strong adaptability, save time, the reliable stable novel colliery of sealed effect airtight wall in pit.
The utility model discloses a novel colliery is airtight wall in pit that utilizes 3D printing technique, set up in the colliery needs the position of interim or permanent airtight in pit, characterized in that, including 3D printing wall body, expanded vitrified micro bubble spout the layer, the concrete spouts the layer, outer decorative layer and fixed disk;
the fixed disc and the 3D printing wall are integrally printed by an industrial 3D printer, and the 3D printing wall is positioned between the left and right expanded and vitrified micro bubble spraying layers;
the material used by the 3D printing wall body is a high-tech polymer material for buildings;
the spraying sequence of each spraying layer on the surface of the 3D printing wall body is as follows: firstly, an expanded and vitrified small ball spraying layer, then a concrete spraying layer and finally an outer decorative layer are arranged;
the fixed disc is fixed on the top of the roadway, the bottom plate and two sides of the roadway by anchor rods and anchor cables.
The 3D printing wall body is integrally printed and formed on an industrial 3D printer used on the ground according to the size and the shape of a roadway.
The 3D printing wall body needs to dig grooves of 15 cm-30 cm on the top of the roadway, the bottom plate and two sides of the roadway, and the 3D printing wall body is embedded.
The spraying thickness of the expanded and vitrified small ball spraying layer is not less than 20 mm.
When the fixed disks are fixed, 3-5 fixed disks are arranged at the top, the bottom and the two sides of the roadway.
Has the advantages that: the utility model discloses can effectively avoid the brick stone and mix earth to build the long consuming time and the inefficiency scheduling problem of seal wall, greatly improve the speed of building of colliery underground seal wall, reduce the cost and the engineering burden of building the seal wall, strengthen the sealed effect of seal wall.
Drawings
Fig. 1 is the utility model relates to an utilize 3D to print novel colliery underground sealing wall's of technique overall structure sketch map.
Fig. 2 is a schematic sectional structure view along a line a-a' of the novel coal mine underground sealing wall using the 3D printing technology shown in fig. 1.
In the figure, l, lane; 2. 3D printing the wall body; 3. spraying a layer of expanded and vitrified micro bubbles; 4. spraying a concrete layer; 5. an outer decorative layer; 6. and (7) fixing the disc.
Detailed Description
The utility model is suitable for a coal mine is each in pit need build each position in the tunnel of seal wall, it is right below combining the drawing the utility model discloses do further description:
as shown in attached drawings 1 and 2, the novel coal mine underground sealing wall utilizing the 3D printing technology is arranged at a position needing temporary or permanent sealing in a coal mine underground, and comprises a 3D printing wall body 2, an expanded and vitrified micro bubble spraying layer 3, a concrete spraying layer 4, an outer decorative layer 5 and a fixed disc 6; the fixed disc 6 and the 3D printing wall body 2 are integrally printed and formed by an industrial 3D printer, and the 3D printing wall body 2 is positioned between the left and right expanded and vitrified micro bubble spraying layers 3; the 3D printing wall body 2 is made of a high-tech polymer material for buildings; the spraying sequence of each spraying layer on the surface of the 3D printing wall body 2 is as follows: firstly, an expanded and vitrified small ball spraying layer 3, then a concrete spraying layer 4 and finally an outer decorative layer 5 are arranged; the fixed disc 6 is fixed on the top of the roadway 1, the bottom plate and two sides of the roadway 1 by anchor rods and anchor cables.
The specific method comprises the following steps:
a. and measuring relevant shape parameters such as the length, the height and the like of the section of the roadway 1 needing to construct the sealing wall.
b. And (c) inputting the parameters of the roadway 1 measured in the step a into an industrial 3D printer, and manufacturing a 3D printing wall body 2.
c. And (3) conveying the 3D printing wall body 2 (comprising the fixed disc 6) and other required materials to the underground construction of the sealing wall.
d. Digging 15 cm-30 cm grooves at the top, the bottom plate and two sides of the tunnel 1 at the construction position of the closed wall of the tunnel 1, embedding the 3D printing wall body 1, and fixing the 3D printing wall body 2 by using an anchor rod and an anchor cable to penetrate through the hole of the fixed disc 6.
e. And the expanded and vitrified small ball spraying layer 3, the concrete spraying layer 4 and the outer decorative layer 5 are sprayed on the wall body in sequence.
The utility model discloses the principle and the implementation mode of the utility model are explained by applying the concrete embodiment, and the explanation of the above embodiment is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (5)
1. A novel coal mine underground sealing wall utilizing a 3D printing technology is arranged at a position needing temporary or permanent sealing in a coal mine underground, and is characterized by comprising a 3D printing wall body (2), an expanded and vitrified micro bubble spraying layer (3), a concrete spraying layer (4), an outer decorative layer (5) and a fixed disc (6);
the fixed disc (6) and the 3D printing wall body (2) are integrally printed by an industrial 3D printer, and the 3D printing wall body (2) is positioned between the left and right expanded and vitrified micro bubble spraying layers (3);
the fixed disc (6) is fixed on the top of the roadway (1), the bottom plate and two sides of the roadway (1) by anchor rods and anchor cables.
2. The novel coal mine underground sealing wall using the 3D printing technology as claimed in claim 1, wherein the 3D printing wall body is integrally printed and formed on an industrial 3D printer used on the ground according to the size and the shape of a roadway.
3. The novel coal mine underground sealing wall using the 3D printing technology as claimed in claim 1 is characterized in that the 3D printing wall body (2) needs to dig grooves of 15 cm-30 cm at the top, the bottom and two sides of the roadway (1) and embed the 3D printing wall body (2).
4. The novel coal mine underground sealing wall adopting the 3D printing technology as claimed in claim 1, wherein the spraying thickness of the expanded and vitrified micro-bead spraying layer (3) is not less than 20 mm.
5. The novel coal mine underground sealing wall using the 3D printing technology as claimed in claim 1, wherein when the fixing discs (6) are fixed, the number of the fixing discs (6) on the top and bottom of the roadway (1) and on two sides of the roadway (1) is 3-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022300345.2U CN213392269U (en) | 2020-10-15 | 2020-10-15 | Novel coal mine underground sealing wall using 3D printing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022300345.2U CN213392269U (en) | 2020-10-15 | 2020-10-15 | Novel coal mine underground sealing wall using 3D printing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213392269U true CN213392269U (en) | 2021-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202022300345.2U Active CN213392269U (en) | 2020-10-15 | 2020-10-15 | Novel coal mine underground sealing wall using 3D printing technology |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183183A (en) * | 2021-11-22 | 2022-03-15 | 中煤科工集团沈阳研究院有限公司 | Device and method for constructing underground coal mine sealing wall |
| CN115013057A (en) * | 2022-03-28 | 2022-09-06 | 中国矿业大学(北京) | Novel coal mine airtight wall capable of being constructed quickly and construction process thereof |
| WO2023237611A1 (en) * | 2022-06-09 | 2023-12-14 | Sika Technology Ag | A method for producing a waterproofing detail part |
-
2020
- 2020-10-15 CN CN202022300345.2U patent/CN213392269U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183183A (en) * | 2021-11-22 | 2022-03-15 | 中煤科工集团沈阳研究院有限公司 | Device and method for constructing underground coal mine sealing wall |
| CN115013057A (en) * | 2022-03-28 | 2022-09-06 | 中国矿业大学(北京) | Novel coal mine airtight wall capable of being constructed quickly and construction process thereof |
| CN115013057B (en) * | 2022-03-28 | 2023-12-12 | 中国矿业大学(北京) | Novel coal mine sealing wall quickly constructed and construction process thereof |
| WO2023237611A1 (en) * | 2022-06-09 | 2023-12-14 | Sika Technology Ag | A method for producing a waterproofing detail part |
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