Hole sealing device for coal seam drill hole plugging

Abstract

The utility model discloses a hole sealing device for coal seam drilling hole plugging, and relates to the field of coal seam drilling hole plugging, the hole sealing device comprises a charging barrel, a push rod and a double-section threaded rod, one end of the charging barrel is open, the other end of the charging barrel is provided with a through hole, and the side wall of the charging barrel is provided with a feeding hole; one end of the push rod penetrates through the through hole and is fixedly provided with a push plate; the push plate can slide along the inner cavity of the charging barrel; one end of the double-section threaded rod is in threaded connection with a material blocking disc, the other end of the double-section threaded rod is in threaded connection with a conical plug, the material blocking disc is arranged in a drill hole, the conical plug is in threaded connection with the double-section threaded rod, a hole opening is blocked, the push rod is operated, the push plate is used for pushing filling materials in the material barrel into the drill hole from the multiple discharging channels, and therefore the filling materials can be conveniently and rapidly discharged. And along with ordered pushing of the filler, the drill hole can be effectively blocked, and gas leakage and water leakage are prevented.

Description

Technical Field

[0001] This utility model belongs to the field of coal seam borehole sealing, specifically relating to a sealing device for coal seam borehole sealing. Background Technology

[0002] With the continuous development of the coal mining industry, coal seam drilling has become an important part of the coal mining process.

[0003] However, how to effectively seal the borehole after drilling to prevent gas leakage, water seepage and other problems has always been a problem that needs to be solved in the industry.

[0004] Currently, the commonly used method in the industry for sealing holes is to place a precast concrete cylinder into the drilled hole and then fill the gap between the concrete cylinder and the hole wall with cement.

[0005] While this method can achieve the purpose of sealing to a certain extent, it has many drawbacks: First, the gap between the concrete cylindrical component and the hole wall is difficult to fill completely, resulting in an incomplete seal and easy gas leakage and water seepage; Second, the cement filling process is cumbersome and inefficient.

[0006] Therefore, we propose a sealing device for coal seam borehole plugging to solve the above problems. Utility Model Content

[0007] In response to the current industry practice of using concrete cylinders and cement to seal boreholes, which results in gaps that are difficult to completely fill, leading to incomplete sealing and potential gas and water leakage, this utility model provides a sealing device for sealing coal seam boreholes.

[0008] The solution adopted by this utility model to solve its technical problem is: a sealing device for sealing coal seam boreholes, including a material cylinder, a push rod and a double-segment threaded rod. One end of the material cylinder is open, and the other end is provided with a through hole. A feed hole is opened on the side wall of the material cylinder.

[0009] One end of the push rod passes through the through hole and is fixedly installed with a push plate, which can slide along the inner cavity of the material cylinder;

[0010] One end of the double-segment threaded rod is threadedly connected to a baffle plate, and the other end is threadedly connected to a tapered plug;

[0011] The conical plug is located at the open end of the material cylinder. Multiple discharge channels are provided on the conical plug. The discharge through hole is connected to the inner cavity of the material cylinder, so that the filler material in the material cylinder can be discharged through the discharge channel.

[0012] Preferably, a feed hopper is fixedly installed on the feed hole.

[0013] Preferably, the outer ring of the baffle plate has a groove, and a water-swellable sealing ring is provided in the groove.

[0014] Preferably, the conical plug is fixedly installed at the open end of the material cylinder.

[0015] Preferably, the outer surface of the conical plug is provided with external threads, and the open end of the material cylinder is provided with internal threads, so that the conical plug is threadedly connected to the material cylinder.

[0016] Preferably, the double-segment threaded rod is made of PP or PVC material.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model seals the borehole by placing a baffle plate inside the borehole and threading a tapered plug to a double-segment threaded rod. By operating the push rod, the filler material in the cylinder is pushed into the borehole through multiple discharge channels using a push plate. With the orderly pushing of the filler material, the borehole can be effectively sealed to prevent gas leakage and water seepage.

[0019] 2. This utility model connects the conical plug to the double-segment threaded rod, allowing the position of the conical plug to be adjusted according to the drilling depth, so that the conical plug can seal the hole and prevent the filling material from leaking out.

[0020] 3. This utility model uses a baffle plate in conjunction with a water-swellable sealing ring. The water-swellable sealing ring expands when it comes into contact with water, filling the gap between the drill hole and the baffle plate, effectively preventing gas and water leakage. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the double-segment threaded rod and tapered plug of this utility model;

[0023] Figure 3 This is a frontal cross-sectional view of the present invention.

[0024] In the diagram: 1. Material cylinder, 2. Feed hopper, 3. Push rod, 4. Double-section threaded rod, 51. Conical plug, 52. Discharge channel, 6. Material baffle, 7. Water-swellable sealing ring, 8. Push plate. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Please see Figure 1-3 This utility model provides a technical solution for a sealing device for coal seam borehole plugging:

[0027] Example 1:

[0028] according to Figure 1-3 As shown, it includes a material cylinder 1, a push rod 3 and a double-segment threaded rod 4. One end of the material cylinder 1 is open, and the other end is provided with a through hole. A feed hole is provided on the side wall of the material cylinder 1, and a feed hopper 2 is fixedly installed on the feed hole so as to add filler material into the material cylinder 1 through the feed hopper 2.

[0029] One end of the push rod 3 passes through the through hole and is fixedly installed with a push plate 8. The push plate 8 can slide along the inner cavity of the material cylinder 1. By operating the push rod 3, the push plate 8 is used to push the filling material in the material cylinder 1 into the drill hole.

[0030] The double-segment threaded rod 4 is made of PP or PVC material, which makes it easy to cut off later. One end of the double-segment threaded rod 4 is threadedly connected to a baffle plate 6, and the other end is threadedly connected to a conical plug 51. By threading the conical plug 51 to the double-segment threaded rod 4, the position of the conical plug 51 can be adjusted according to the drilling depth, so that the conical plug 51 can seal the hole opening and prevent the filling material from leaking out.

[0031] A conical plug 51 is installed at the open end of the material cylinder 1. Multiple discharge channels 52 are provided on the conical plug 51. The discharge through hole is connected to the inner cavity of the material cylinder 1, so that the filling material in the material cylinder 1 can be discharged into the borehole through the discharge channel 52 to effectively seal the borehole and prevent gas leakage and water seepage.

[0032] In practical use, the sealing device for sealing coal seam boreholes of this utility model first places the baffle plate 6 inside the borehole, then connects the conical plug 51 to the double-segment threaded rod 4 by thread, and screws the conical plug 51 to the borehole opening to seal the opening. Then, filler material is added into the material cylinder 1 through the feed hopper 2. After that, the push rod 3 is operated, and the filler material in the material cylinder 1 is pushed into the borehole through multiple discharge channels 52 by the push plate 8.

[0033] Once the filler fills the borehole and achieves the desired sealing effect, stop pushing to complete the sealing operation. Finally, remove the conical plug 51 and use a tool to cut off the excess double-segment threaded rod 4. Use filler to fill the remaining hole.

[0034] Example 2:

[0035] Based on Example 1, the differences are as follows: Figure 1 and Figure 2 As shown, the outer ring of the baffle plate 6 has a groove, and a water-swellable sealing ring 7 is installed in the groove. With the baffle plate 6 and the water-swellable sealing ring 7 working together, the water-swellable sealing ring 7 can expand when it comes into contact with water, filling the gap between the drill hole and the baffle plate 6, effectively preventing gas and water leakage.

[0036] Example 3:

[0037] Based on Embodiment 1, the difference is as follows: the conical plug 51 is fixedly installed at the open end of the material cylinder 1.

[0038] Example 4:

[0039] Based on Example 1, the differences are as follows: Figure 1 and Figure 2 As shown, the outer surface of the conical plug 51 is provided with external threads, and the open end of the material cylinder 1 is provided with internal threads, so that the conical plug 51 is threadedly connected to the material cylinder 1, and the conical plug 51 can be separated from the material cylinder 1, which facilitates cleaning of the inner wall of the material cylinder 1.

Claims

1. A sealing device for coal seam borehole plugging, comprising a feed cylinder, a push rod, and a double-segment threaded rod, characterized in that: One end of the material cylinder is open, and the other end is provided with a through hole. A feed hole is provided on the side wall of the material cylinder. One end of the push rod passes through the through hole and is fixedly installed with a push plate, which can slide along the inner cavity of the material cylinder; One end of the double-segment threaded rod is threadedly connected to a baffle plate, and the other end is threadedly connected to a tapered plug; The conical plug is located at the open end of the material cylinder. Multiple discharge channels are provided on the conical plug. The discharge through hole is connected to the inner cavity of the material cylinder, so that the filler material in the material cylinder can be discharged through the discharge channel.

2. The sealing device for coal seam borehole plugging according to claim 1, characterized in that: A feed hopper is fixedly installed on the feed port.

3. The sealing device for coal seam borehole plugging according to claim 1, characterized in that: The outer ring of the baffle plate has a groove, and a water-swellable sealing ring is installed in the groove.

4. The sealing device for coal seam borehole plugging according to claim 1, characterized in that: The conical plug is fixedly installed at the open end of the material cylinder.

5. The sealing device for coal seam borehole plugging according to claim 1, characterized in that: The outer surface of the conical plug is provided with external threads, and the open end of the material cylinder is provided with internal threads, so that the conical plug is threadedly connected to the material cylinder.

6. The sealing device for coal seam borehole plugging according to claim 1, characterized in that: The double-segment threaded rod is made of PP or PVC material.

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