Plugging device

Abstract

The utility model discloses a plugging device which is suitable for plugging a drainage well eye hole in a mining drainage system. The plugging device comprises a wood plug, a steel fixing strip, an open groove, a screw and a water stop rubber strip. The wood plug serves as a main body of the plugging device and is tightly wrapped by the steel fixing strip, and the two ends of the steel fixing strip are fixed to the wood plug through screws. A shallow groove is formed in the wood plug and used for embedding a water stop rubber strip which expands when encountering water, so that the plugging effect is improved. In addition, the inner wall of the drainage well eye hole is provided with a groove in advance, and the groove is also filled with a water stop rubber strip which swells when meeting water, so that the blocking effect is further ensured.

Description

Technical Field

[0001] The invention relates to a device for plugging holes, in particular to a device for plugging drainage well holes in a mining drainage system. Background Art

[0002] In the mining drainage system, especially in the management of tailings ponds, controlling and utilizing backwater is an important link. Traditional drainage wellbore plugging methods mostly rely on customized wooden plugs such as wooden cones. Although these methods are simple, they have multiple problems. First, since the drainage wellbore holes are usually prefabricated cement holes with rough surfaces and irregular sizes and shapes, the sealing effect between the wooden plug and the hole is not ideal. Leakage problems after plugging are frequent, especially in winter, and the icing problem at the drainage culvert mouth may cause serious safety risks.

[0003] In addition, since the wooden plug is large and almost flush with the hole, it is not only difficult to operate during underwater operations, but also lacks an effective operating surface when it needs to be reopened or half-opened and half-blocked, which is not only inefficient but also poses a high safety risk. Therefore, the existing technology has deficiencies in terms of plugging effect, operational safety, and adaptability to environmental changes. Summary of the invention

[0004] The utility model aims to solve the above technical problems and provides a blocking device for drainage wellbore holes in a mining drainage system.

[0005] To achieve the above purpose, the technical solution of the utility model is:

[0006] A blocking device, characterized in that it comprises a wooden plug (1), a steel fixing strip (2), a slot (3) and a screw (4); the steel fixing strip (2) surrounds the outer surface of the wooden plug (1), and both ends of the steel fixing strip (2) are connected to the wooden plug (1) through the screws (4); the wooden plug (1) is provided with the slot (3), and a water-swellable waterproofing strip is embedded in the slot.

[0007] Furthermore, the steel fixing strip (2) has a width of 20-40 mm and a thickness of 0.5-3 mm.

[0008] Furthermore, the steel fixing strip (2) is wound around the wooden plug (1) 1.3 times.

[0009] Furthermore, it is characterized in that the groove (3) is an annular groove surrounding the wooden plug (1).

[0010] Furthermore, it is characterized in that the outer contour surface size of the wooden plug (1) is consistent with the tapered hole of the drainage well.

[0011] Technical effects of the utility model: The utility model significantly reduces the risk of water leakage and enhances the reliability of the drainage system by accurately matching the shape and size of the holes; improves operational safety, especially reducing safety risks during underwater operations; enhances adaptability and flexibility, enabling the device to adapt to various irregular holes and facilitates adjustment and removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the plugging device of the utility model;

[0013] Figure 2 It is a structural schematic diagram of a hole that needs to be blocked by the blocking device of the utility model. DETAILED DESCRIPTION

[0014] like Figure 1-2 As shown, in this specific embodiment, the structure of the blocking device includes a wooden plug 1, a steel fixing strip 2, a slot 3, a screw 4 and a waterproof rubber strip. First, the thin steel plate is cut into strips with a width of 20-40 mm, and holes are drilled at both ends. Then, the steel fixing strip 2 is tightened and wrapped around the outer surface of the wooden plug 1 for about 1.3 turns, and is fixed to the wooden plug 1 at the drilled holes at both ends using screws 4.

[0015] The selection of waterproof rubber strips is determined based on the size, shape and surface roughness of the drainage well holes on site and the appearance of the wooden plug 1. During the plugging operation, the thickness, width and length of the rubber strips will be adjusted according to the actual situation. A shallow groove 3 is provided on the wooden plug 1, and a waterproof rubber strip that expands when exposed to water is injected and bonded into the shallow groove 3 to ensure that it fits tightly and transitions evenly with the original outer surface.

[0016] During the plugging process, firstly, a groove 6 is prefabricated on the inner wall of the drainage well hole 5, and a water-stopping rubber strip that swells when in contact with water is filled into the groove 6, so that it is smoothed and does not fall off, and fills the groove and evenly transitions with the inner wall of the drainage well hole. Subsequently, the wooden plug 1 equipped with the water-stopping rubber strip is rotated and inserted into the drainage well hole and fixed. The purpose of this is to make the water-stopping rubber strip pre-fixed on the inner surface of the hole and the outer surface of the plugging object fit as tightly as possible. In the case of large gaps or cracks, the water-stopping strip will be cut into a suitable shape and size, filled in and tightened. When the clarified return water level in the reservoir rises to the blocked drainage well hole, the water-stopping rubber strip swells and presses against the wooden plug and the inner wall of the hole, thereby achieving a two-way sealing effect.

Claims

1. A blocking device, characterized in that: It comprises a wooden plug (1), a steel fixing strip (2), a slot (3) and a screw (4); the steel fixing strip (2) surrounds the outer surface of the wooden plug (1), and the two ends of the steel fixing strip (2) are connected to the wooden plug (1) by means of the screws (4); the wooden plug (1) is provided with the slot (3), and a water-swellable waterproofing strip is embedded in the slot, and the waterproofing strip is fixed in the slot by bonding.

2. The blocking device according to claim 1, characterized in that: The steel fixing strip (2) has a width of 20-40 mm and a thickness of 0.5-3 mm.

3. The blocking device according to claim 1, characterized in that: The steel fixing strip (2) is wound around the wooden plug (1) 1.3 times.

4. The blocking device according to claim 1, characterized in that: The groove (3) is an annular groove surrounding the wooden plug (1).

5. The blocking device according to claim 1, characterized in that: The outer contour surface dimensions of the wooden plug (1) are consistent with the conical hole of the drainage well.

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