Compound grouting and layering position fire extinguishing device for spontaneous combustion coal gangue stockyard

Abstract

The utility model relates to a compound grouting layered position fire extinguishing device for spontaneous combustion coal gangue yard belongs to grouting fire extinguishing technical field, including inner layer pipe and the outer layer pipe of sleeve connection on the outer wall of inner layer pipe, the upper portion, the middle part and the lower part pipe body department of inner layer pipe and outer layer pipe all are along the axial grouting hole that is set up, set up alignment assembly between inner layer pipe and outer layer pipe, alignment assembly includes two fixed alignment blocks of fixed connection on the outer wall of outer layer pipe and the connecting piece of fixed connection on the outer wall of inner layer pipe. The compound grouting layered position fire extinguishing device for spontaneous combustion coal gangue yard, through setting alignment assembly, utilize movable alignment block and one side limit plate's side wall to be inlaid, realize movable alignment block and the quick alignment of this side fixed alignment block, and when movable alignment block and one of fixed alignment blocks align, the grouting hole of corresponding layer position between inner layer pipe and outer layer pipe can keep alignment, realized the hole position quick alignment, and the grouting work goes on smoothly.

Description

Technical Field

[0001] This utility model relates to the field of grouting fire extinguishing technology, specifically a compound grouting layered fire extinguishing device for self-igniting coal gangue stockpiles. Background Technology

[0002] With the mining of coal resources, large-scale coal gangue accumulation has led to spontaneous combustion, severely impacting the surrounding ecological environment and the mining area. For fire zones with significant vertical distribution of ignition depth, traditional grouting methods for extinguishing spontaneously combusting gangue piles often fail to achieve the desired results. Most existing fire extinguishing devices for coal gangue piles utilize single grouting pipe technology, which cannot effectively achieve layered grouting. Especially in shallow coal gangue fire zones, due to the grout's downward flow under its own weight, most of the grout flows downwards along the grouting pipe, resulting in the shallow coal gangue fire zone not being effectively covered by the grout, thus failing to achieve targeted grout delivery to the extinguishing area.

[0003] A search revealed that patent document CN220203949U discloses a layered grouting fire extinguishing device for self-igniting coal gangue stockpiles. This device includes an outer grouting pipe and an inner grouting pipe tightly fitted together and rotatable relative to each other. The bottom end of the inner grouting pipe has a grouting port. The inner grouting pipe has a top inner grouting hole and a bottom inner grouting hole along its axial direction, while the outer grouting pipe has a top outer grouting hole and a bottom outer grouting hole along its axial direction. The top inner grouting hole and the top outer grouting hole are located on the same horizontal plane, as are the bottom inner grouting hole and the bottom outer grouting hole. When the top inner grouting hole and the top outer grouting hole are aligned and connected, the bottom inner grouting hole and the bottom outer grouting hole are staggered. This device solves the problems of complex structure and poor layered grouting fire extinguishing effect of existing grouting devices, and can achieve the purpose of extinguishing fires in both shallow and deep areas of coal gangue stockpiles.

[0004] However, this compound grouting layered fire extinguishing device still has some problems in use. For example, when performing shallow or deep fire extinguishing, the inner tube needs to be manually rotated to align and stagger the grouting holes of different layers. When it is necessary to stagger the grouting holes of some layers, rotating to any angle will achieve the staggering of the holes. However, when it is necessary to align the grouting holes of some layers, it is necessary to rotate to a specific angle to align the holes on the inner tube with the holes on the outer tube. However, during the manual rotation, it is necessary to repeatedly adjust the rotation angle and observe whether there is grout flowing out at the corresponding position of the outer tube in order to ensure that the holes are aligned. This makes it very inconvenient to use and makes it impossible to achieve rapid hole alignment, which greatly reduces work efficiency.

[0005] Therefore, a compound grouting layered fire extinguishing device for spontaneous combustion coal gangue dumps is proposed to solve the problems mentioned above. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a compound grouting layered fire extinguishing device for spontaneously combusting coal gangue stockpiles, which has advantages such as easy and rapid alignment of hole positions, and solves the problem that existing compound grouting layered fire extinguishing devices cannot achieve rapid alignment of hole positions.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a compound grouting layered fire extinguishing device for spontaneous combustion coal gangue dumps, comprising an inner tube and an outer tube sleeved on the outer wall of the inner tube, wherein grouting holes are provided axially at the upper, middle and lower parts of the inner and outer tubes, and an alignment component is provided between the inner tube and the outer tube; The alignment assembly includes two fixed alignment blocks fixedly connected to the outer wall of the outer tube and a connector fixedly connected to the outer wall of the inner tube. Limiting plates are provided on the side of the two fixed alignment blocks that are far apart from each other. The end of the connector that is far away from the inner tube extends to the outer wall of the outer tube and is fixedly connected to a movable alignment block. A positioning assembly is provided between the movable alignment block and the fixed alignment block.

[0008] Furthermore, the grouting holes at the upper, middle, and lower parts of the inner tube are all located on the same axis, and the grouting holes at the middle and lower parts of the outer tube are all located on the same axis and are offset from the grouting holes at the upper part of the outer tube. The included angle between the grouting holes at the upper part of the outer tube and the grouting holes at the middle or lower part of the outer tube is equal to the included angle between the two fixed alignment blocks.

[0009] Furthermore, the movable alignment block is located between the two limiting plates, and the bottom of the movable alignment block corresponds to the top of the fixed alignment block.

[0010] Furthermore, the positioning component includes an adjusting rod disposed on the upper side of the movable alignment block, a pull head fixedly connected to the upper end of the adjusting rod, and a positioning shaft extending through to the lower side of the movable alignment block disposed on the lower side of the adjusting rod.

[0011] Furthermore, the top of the fixed alignment block is provided with a positioning hole that is adapted to the positioning shaft.

[0012] Furthermore, an installation component is fixedly connected between the movable alignment block and the connecting component, the adjusting rod is inserted into the inner side of the installation component, the pull head is located on the upper side of the installation component, and an anti-detachment block is fixedly connected between the adjusting rod and the positioning shaft. The anti-detachment block is located between the installation component and the movable alignment block.

[0013] Furthermore, the inner tube extends to the outside of the outer tube from one end near the alignment component, and is respectively provided with a pressure gauge and a grouting port. A sealing plate is fixedly connected to the end of the outer tube away from the grouting port.

[0014] Furthermore, a handle is fixedly connected to the outer wall of the inner tube extending to the outer side of the outer tube, and an auxiliary arm is fixedly connected to the outer wall of the outer tube near the handle.

[0015] Compared with the prior art, this utility model provides a compound grouting layered fire extinguishing device for spontaneously combusting coal gangue dumps, which has the following beneficial effects: 1. This compound grouting layered fire extinguishing device for spontaneous combustion coal gangue dumps, through the setting of alignment components, utilizes the contact between the movable alignment block and the side wall of the limiting plate on one side to achieve rapid alignment between the movable alignment block and the fixed alignment block on the same side. When the movable alignment block is aligned with one of the fixed alignment blocks, the grouting holes of the corresponding layers between the inner and outer pipes will remain aligned, realizing rapid hole alignment, facilitating smooth grouting work, improving work efficiency, and being easy to use.

[0016] 2. This compound grouting layered fire extinguishing device for spontaneous combustion coal gangue dumps uses the cooperation of positioning shaft and positioning hole to keep the movable alignment block and fixed alignment block stably aligned, ensuring stable hole alignment and improving the stability of use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a partial structural diagram of the present invention; Figure 3 This is a schematic diagram of the separation structure of the movable alignment block and the fixed alignment block of this utility model; Figure 4 This is a schematic diagram of the positioning component of this utility model; Figure 5 This is a schematic diagram of the separation structure of the inner tube and the outer tube of this utility model.

[0018] In the diagram: 1. Inner tube; 2. Outer tube; 3. Grouting hole; 4. Pressure gauge; 5. Grouting port; 6. Fixed alignment block; 7. Limiting plate; 8. Connecting piece; 9. Movable alignment block; 10. Mounting piece; 11. Adjusting rod; 12. Pull head; 13. Anti-detachment block; 14. Positioning shaft; 15. Positioning hole; 16. Sealing plate; 17. Handle; 18. Auxiliary arm. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1 to 5 The compound grouting layered fire extinguishing device for spontaneous combustion coal gangue dumps in this embodiment includes an inner tube 1 and an outer tube 2 sleeved on the outer wall of the inner tube 1. Grouting holes 3 are axially provided at the upper, middle and lower parts of the inner tube 1 and the outer tube 2. An alignment component is provided between the inner tube 1 and the outer tube 2. The end of the inner tube 1 near the alignment component extends to the outside of the outer tube 2 and is respectively provided with a pressure gauge 4 and a grouting port 5. A sealing piece 16 is fixedly connected to the end of the outer tube 2 away from the grouting port 5. A handle 17 is fixedly connected to the outer wall of the inner tube 1 extending to the outside of the outer tube 2. An auxiliary arm 18 is fixedly connected to the outer wall of the outer tube 2 near the handle 17.

[0021] In this embodiment, the alignment assembly includes two fixed alignment blocks 6 fixedly connected to the outer wall of the outer tube 2 and a connector 8 fixedly connected to the outer wall of the inner tube 1. Limiting plates 7 are provided on the side of the two fixed alignment blocks 6 that are far apart from each other. The end of the connector 8 that is far away from the inner tube 1 extends to the outer wall of the outer tube 2 and is fixedly connected to a movable alignment block 9. The movable alignment block 9 is located between the two limiting plates 7. The rotation range of the movable alignment block 9 can be limited by the two limiting plates 7. At the same time, by using the movable alignment block 9 to fit against the side wall of the limiting plate 7, the movable alignment block 9 can be quickly aligned with the fixed alignment block 6 on that side.

[0022] In this design, the grouting holes 3 at the upper, middle, and lower parts of the inner tube 1 are all located on the same axis. Similarly, the grouting holes 3 at the middle and lower parts of the outer tube 2 are also located on the same axis, but are offset from the grouting holes 3 at the upper part of the outer tube. The angle between the offset of the grouting holes 3 at the upper part of the outer tube 2 and those at the middle or lower part is equal to the angle between the two fixed alignment blocks 6. The bottom of the movable alignment block 9 corresponds to the top of the fixed alignment block 6. Furthermore, when the movable alignment block 9 is aligned with one of the fixed alignment blocks 6, the grouting holes 3 at corresponding layers between the inner tube 1 and the outer tube 2 will remain aligned. For example: When the movable alignment block 9 aligns with the right fixed alignment block 6, the grouting holes 3 at the top of the inner tube 1 and the outer tube 2 are aligned, while the grouting holes 3 at the middle and bottom are staggered, which is used for shallow fire extinguishing. When the movable alignment block 9 aligns with the left fixed alignment block 6, the grouting holes 3 at the top of the inner tube 1 and the outer tube 2 are staggered, while the grouting holes 3 at the middle and bottom are aligned, which is used for deep fire extinguishing.

[0023] In this embodiment, a positioning component is provided between the movable alignment block 9 and the fixed alignment block 6. The positioning component includes an adjusting rod 11 disposed on the upper side of the movable alignment block 9. A pull head 12 is fixedly connected to the upper end of the adjusting rod 11. A positioning shaft 14 is disposed on the lower side of the adjusting rod 11, extending through to the lower side of the movable alignment block 9. A positioning hole 15 adapted to the positioning shaft 14 is disposed on the top of the fixed alignment block 6. The movable alignment block 9 and the fixed alignment block 6 are stably aligned through the cooperation of the positioning shaft 14 and the positioning hole 15, thus ensuring the stable alignment of the hole positions.

[0024] Among them, the movable alignment block 9 is fixedly connected to the connector 8 with the mounting part 10, the adjusting rod 11 is inserted into the inner side of the mounting part 10, the pull head 12 is located on the upper side of the mounting part 10, and the adjusting rod 11 is fixedly connected to the positioning shaft 14 with the anti-detachment block 13. The anti-detachment block 13 is located between the mounting part 10 and the movable alignment block 9. The position of the positioning shaft 14 can be adjusted by the cooperation of the pull head 12 and the adjusting rod 11.

[0025] The working principle of the above embodiments is as follows: In use, the operator rotates the inner tube 1, which can drive the movable alignment block 9 to move along the outer wall of the outer tube 2 through the connector 8. When the movable alignment block 9 is in contact with the limiting plate 7 on one side, the movable alignment block 9 is aligned with the fixed alignment block 6 on that side, and the grouting holes 3 of the corresponding layers between the inner tube 1 and the outer tube 2 are aligned, thereby achieving rapid alignment of the holes.

[0026] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that can achieve its beneficial effects can be implemented.

[0027] The above description is a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and concept of this application, should be covered within the protection scope of the claims of this utility model.

Claims

1. A compound grouting layered fire extinguishing device for spontaneously combusting coal gangue dumps, characterized in that: It includes an inner tube (1) and an outer tube (2) sleeved on the outer wall of the inner tube (1). The upper, middle and lower parts of the inner tube (1) and the outer tube (2) are provided with grouting holes (3) along the axial direction. An alignment component is provided between the inner tube (1) and the outer tube (2). The alignment assembly includes two fixed alignment blocks (6) fixedly connected to the outer wall of the outer tube (2) and a connector (8) fixedly connected to the outer wall of the inner tube (1). Limiting plates (7) are provided on the side of the two fixed alignment blocks (6) that are far away from each other. The end of the connector (8) that is far away from the inner tube (1) extends to the outer wall of the outer tube (2) and is fixedly connected to a movable alignment block (9). A positioning assembly is provided between the movable alignment block (9) and the fixed alignment block (6).

2. The compound grouting layered fire extinguishing device for spontaneously combusting coal gangue dumps according to claim 1, characterized in that: The grouting holes (3) at the upper, middle and lower parts of the inner tube (1) are all located on the same axis. The grouting holes (3) at the middle and lower parts of the outer tube (2) are all located on the same axis and are offset from the grouting holes (3) at the upper part of the outer tube. The included angle between the grouting holes (3) at the upper part of the outer tube (2) and the grouting holes (3) at the middle or lower part of the outer tube is equal to the included angle between the two fixed alignment blocks (6).

3. The compound grouting layered fire extinguishing device for spontaneously combusting coal gangue dumps according to claim 1, characterized in that: The movable alignment block (9) is located between the two limiting plates (7), and the bottom of the movable alignment block (9) corresponds to the top of the fixed alignment block (6).

4. The compound grouting layered fire extinguishing device for spontaneously combusting coal gangue dumps according to claim 1, characterized in that: The positioning component includes an adjusting rod (11) disposed on the upper side of the movable alignment block (9), with a pull head (12) fixedly connected to the upper end of the adjusting rod (11), and a positioning shaft (14) extending through to the lower side of the adjusting rod (11) to the lower side of the movable alignment block (9).

5. The compound grouting layered fire extinguishing device for spontaneously combusting coal gangue dumps according to claim 4, characterized in that: The top of the fixed alignment block (6) is provided with a positioning hole (15) that is adapted to the positioning shaft (14).

6. The compound grouting layered fire extinguishing device for spontaneously combusting coal gangue dumps according to claim 4, characterized in that: An installation component (10) is fixedly connected between the movable alignment block (9) and the connector (8). The adjusting rod (11) is inserted into the inner side of the installation component (10). The pull head (12) is located on the upper side of the installation component (10). An anti-detachment block (13) is fixedly connected between the adjusting rod (11) and the positioning shaft (14). The anti-detachment block (13) is located between the installation component (10) and the movable alignment block (9).

7. The compound grouting layered fire extinguishing device for spontaneously combusting coal gangue dumps according to claim 1, characterized in that: The inner tube (1) extends from one end near the alignment assembly to the outside of the outer tube (2), and is provided with a pressure gauge (4) and a grouting port (5). The outer tube (2) is fixedly connected to a sealing piece (16) at the end away from the grouting port (5).

8. The compound grouting layered fire extinguishing device for spontaneously combusting coal gangue dumps according to claim 7, characterized in that: The inner tube (1) extends to the outer wall of the outer tube (2) and is fixedly connected to a handle (17). The outer tube (2) is fixedly connected to an auxiliary arm (18) near the handle (17).

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