Reinforcing structure for underground coal mine hoop joint
By using a sealing anchor layer, an outer cover for compacting the anchor, and an air duct cloth for isolation and flame retardancy at the clamp joint, the problem of leakage at the clamp joint is solved, thereby improving the safety and efficiency of underground production in coal mines.
Patent Information
- Application Number
- CN202423081528.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-12-13
AI Technical Summary
There are leakage problems at the clamp joints in underground coal mines, which affects the safe production of the mines. The existing treatment methods require stopping water or pressure air, resulting in production stagnation and poor sealing effect.
The sealing and durability of the clamp joint are enhanced by using an anchor layer for sealing and an outer cover structure for compacting the anchor, combined with an air duct cloth for isolation and flame retardancy.
It reduces the amount of pipeline maintenance, reduces the impact on mine production, improves the sealing effectiveness and safety of the clamp joints, and reduces the time of water or pressure air outages.
Smart Images
Figure CN223360260U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of safe production in coal mines, in particular to a reinforcement structure for clamp joints in underground coal mines. Background Art
[0002] The underground clamp joint pipelines in coal mines are generally more than tens of thousands of meters long. Due to errors in the grooves of the pipe joints, corrosion of the grooves or changes in the tunnels, the clamp joints leak, affecting the safe production of the mines. To deal with pipeline leakage, it is necessary to stop the water supply or the pressurized air, which restricts the normal production of the mines. Some locations need to periodically replace the clamp joints (internal sealing rings) due to deviations in the groove quality. Some locations use anchoring agents for emergency treatment and temporary sealing, but the sealing effect is not good. The water supply or pressurized air is stopped again to replace the clamp joints (mainly replacing the internal rubber sealing rings). The number of replacements is small, but the water supply or pressurized air is stopped for a long time (pressure relief and pressure increase are required), which restricts the safe production of the mines. Therefore, designing a reinforcement structure for the clamp joints in underground coal mines is a problem that technical personnel in related fields continue to solve. Utility Model Content
[0003] In order to solve the above technical problems, the technical solution provided by the utility model is: a reinforcement structure for the clamp joint in coal mines, including a sealing anchor layer covering the outside of the clamp joint and a compaction anchor outer cover arranged on the outside of the sealing anchor layer, and an isolating flame-retardant air duct cloth is arranged between the compaction anchor outer cover and the sealing anchor layer.
[0004] Furthermore, the outer cover for the compacted anchoring agent includes an arc-shaped cover body, and mounting plates are provided outwardly on both sides of the bottom of the arc-shaped cover body, and bolt connection holes are provided on the mounting plates.
[0005] Furthermore, the arc-shaped cover body includes a middle arc-shaped portion along its width direction, and contraction portions are respectively provided on both sides of the middle arc-shaped portion. The two sides of the contraction portion are inclined toward the middle of the arc-shaped cover body, and the outer side of the top of the contraction portion is inclined toward the mounting plate.
[0006] The advantages of the present invention compared with the prior art are: by providing an anchor layer for sealing, an air duct cloth for isolation and flame retardancy, and an outer cover for compacting the anchor, the present invention can reduce the maintenance of the pipeline clamp joint, reduce the impact on mine production safety, and improve the effectiveness and safety of the clamp joint sealing; and improve the maintenance effect of the pipeline using the clamp joint. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1 The utility model is a structural schematic diagram of a reinforcement structure for a clamp joint in an underground coal mine.
[0008] Figure 2The utility model is a structural schematic diagram of an external cover for compacting anchoring agent in a reinforcement structure at a clamp joint in an underground coal mine.
[0009] Figure 3 The utility model is a schematic diagram of the top structure of an external cover for compacting anchoring agent in a reinforcement structure at a clamp joint in an underground coal mine.
[0010] Figure 4 The utility model is a schematic diagram of the side structure of an external cover for compacting anchoring agent in a reinforcement structure at a clamp joint in an underground coal mine. DETAILED DESCRIPTION
[0011] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.
[0012] In the description of the embodiments of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the product of the utility model is usually placed when in use. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.
[0013] Furthermore, the use of terms such as "horizontal," "vertical," and "overhanging" does not necessarily imply that the component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but rather that it can be slightly tilted.
[0014] In the description of the embodiments of the present invention, “a plurality of” means at least 2.
[0015] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.
[0016] Example:
[0017] Combined with attachment Figure 1-4 A reinforcement structure for a clamp joint in an underground coal mine, comprising a sealing anchor layer 1 covering the outside of the clamp joint and a compaction anchor outer cover 2 arranged on the outside of the sealing anchor layer 1, an isolating flame-retardant wind tube cloth 3 is arranged between the compaction anchor outer cover 2 and the sealing anchor layer 1; the compaction anchor outer cover 2 comprises an arc-shaped cover body 201, mounting plates 202 are arranged outward on both sides of the bottom of the arc-shaped cover body 201, and bolt connection holes 203 are arranged on the mounting plates 202; the arc-shaped cover body 201 includes a middle arc-shaped portion 201a along its width direction, and contraction portions 201b are respectively arranged outward on both sides of the middle arc-shaped portion 201a, and the two sides of the contraction portion 201b are inclined toward the middle of the arc-shaped cover body 201, and the outer side of the top of the contraction portion 201b is inclined toward the mounting plate 202.
[0018] Generally, underground wind and water pipelines have sizes of DN100, DN150, DN200 and DN250. Therefore, it is necessary to process a compaction anchor cover that is larger than the joint size according to the specific pipeline and fix it with bolts and sew it; the processed compaction anchor cover needs to compact the sealing anchor layer inside it, and the isolation and flame-retardant air duct cloth is attached to the inside of the compaction anchor cover to reduce the cleaning work of the cover; the pipeline joints are squeezed and deformed by the tunnel, resulting in serious dislocation of the clamp joints, and compressed air or high-pressure water impacts the sealing anchor layer material. When there is an isolation and flame-retardant air duct cloth outside the sealing anchor layer for bonding, it can play a buffering role to prevent the anchor from flying out due to impact, thereby achieving the essential safety of the sealed joint and improving the reliability, durability and safety of the sealing.
[0019] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.
Claims
1. A reinforcement structure for a clamp joint in an underground coal mine, characterized in that: It comprises a plugging anchor layer covering the outside of the clamp joint and a compaction anchor outer cover arranged outside the plugging anchor layer; an isolating flame-retardant air duct cloth is arranged between the compaction anchor outer cover and the plugging anchor layer.
2. A reinforcement structure for clamp joints in underground coal mines according to claim 1, characterized in that: The outer cover for the compacted anchoring agent comprises an arc-shaped cover body, and mounting plates are provided outwardly on both sides of the bottom of the arc-shaped cover body, and bolt connection holes are provided on the mounting plates.
3. A reinforcement structure for clamp joints in underground coal mines according to claim 2, characterized in that: The arc-shaped cover body includes a middle arc-shaped portion along its width direction, and contraction portions are respectively provided on both sides of the middle arc-shaped portion. The two sides of the contraction portion are inclined toward the middle of the arc-shaped cover body, and the outer side of the top of the contraction portion is inclined toward the mounting plate.