A temporary ventilation barrier device for underground mines

Abstract

This utility model discloses a temporary ventilation barrier device for underground mines, relating to the field of mine ventilation safety technology. It includes a fixed base frame and an assembly assembly. The fixed base frame is an integrated structure with a support rod rotatably connected to its inner side. The assembly assembly is disposed on the surface of the fixed base frame and includes an embedded mounting groove, an embedded mounting strip, a main ventilation barrier, an embedded connecting groove, an embedded connecting strip, a side ventilation barrier, an upper ventilation barrier, a magnetic connecting layer, and a rare-earth permanent magnet strip. The embedded mounting groove is located on the inner surface of both the fixed base frame and the support rod. This temporary ventilation barrier device for underground mines allows for rapid assembly of its components through the assembly assembly, improving assembly efficiency. The components can be folded and stored separately for easy transport. The protective assembly creates a multi-layered structure on the surface of the ventilation barrier, significantly enhancing its strength and extending its service life.

Description

Technical Field

[0001] This utility model relates to the field of mine ventilation safety technology, specifically a temporary ventilation barrier device for underground mines. Background Technology

[0002] Temporary ventilation barriers in mines are lightweight, movable barrier facilities used to quickly separate or guide underground airflow. They belong to the category of temporary mine ventilation structures and can be used for working face ventilation optimization or disaster isolation. Their applications are concentrated in critical underground scenarios such as temporary air control in mining areas, emergency diversion in disaster situations, and dust control. However, current temporary ventilation barriers still have the following shortcomings:

[0003] For example, patent document CN213899037U discloses a ventilation barrier sealing system for semi-circular arch roadways in coal mines. This ventilation barrier sealing system fills a technical gap in the daily training programs of mine rescue teams. When large-section semi-circular arch roadways such as underground substations, main transport roadways, bottom yards, and refuge chambers in coal mines need to be sealed with ventilation barriers in the event of a disaster, mine rescue teams can safely, quickly, and efficiently complete the task of constructing ventilation barriers. However, it is not convenient to store and carry, has low assembly efficiency, and is inconvenient for temporary installation. Utility Model Content

[0004] The purpose of this utility model is to provide a temporary ventilation barrier device for underground mines to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A temporary ventilation barrier device for underground mining includes a fixed base frame and an assembly assembly. The fixed base frame is an integrated structure, and a support rod is rotatably connected to the inner side of the fixed base frame. The assembly assembly is disposed on the surface of the fixed base frame and includes an embedded mounting groove, an embedded mounting strip, a main ventilation barrier, an embedded connecting groove, an embedded connecting strip, a side ventilation barrier, an upper ventilation barrier, a magnetic connecting layer, and a rare earth permanent magnet strip. The embedded mounting groove is formed on the inner surface of the fixed base frame and the support rod, and an embedded mounting strip is embedded in the inner side of the embedded mounting groove. The main ventilation barrier is disposed on the surface of the embedded mounting strip, and the fixed base frame and the support rod are symmetrically disposed on both sides of the main ventilation barrier. Two sets of the fixed base frame and the support rod are provided.

[0007] Furthermore, the fixed bottom frame and the outer surface of the support rod are provided with an embedded connecting groove, and an embedded connecting strip is embedded inside the embedded connecting groove.

[0008] Furthermore, the surface of the embedded connecting strip is connected to a side wind barrier, and the side wind barrier and the embedded connecting strip are a tightly connected integrated structure.

[0009] Furthermore, the upper surfaces of the main wind deflector and the side wind deflector are connected to an upper wind deflector, and the lower surface of the upper wind deflector and the upper surfaces of the main wind deflector and the side wind deflector are all provided with a magnetic connection layer.

[0010] Furthermore, two sets of side-mounted wind barriers are symmetrically arranged, and rare earth permanent magnet strips are embedded in the outer edge of the side-mounted wind barriers and the upper edge of the upper wind barriers.

[0011] Furthermore, a fixing plate is installed on the lower inner side of the fixed base frame, and a fixing screw is threaded onto the surface of the fixing plate.

[0012] Furthermore, the surface of the main windbreak is provided with protective components for enhanced protection, and the protective components include a polyester glass fiber composite layer, a PVC modified surface film, and a high-strength polyester fabric. The polyester glass fiber composite layer is provided on the outer surface of the main windbreak, the side windbreak, and the upper windbreak, and the outer surface of the polyester glass fiber composite layer is connected to the PVC modified surface film. The outer side of the PVC modified surface film is provided with a high-strength polyester fabric.

[0013] Furthermore, the protective component also includes a conductive fiber mesh, a nano-outer protective layer, and a PTFE coating, and the conductive fiber mesh is provided on the outer side of the high-strength polyester fabric.

[0014] Furthermore, a nano-protective layer is connected to the outside of the conductive fiber mesh, and a PTFE coating is provided on the outer surface of the nano-protective layer.

[0015] The temporary ventilation barrier device for underground mines provided by this utility model has the following beneficial effects:

[0016] 1. This utility model, through its assembly components, can fix the main windbreak to the surfaces of two sets of fixed base frames and two sets of support rods. By embedding connecting strips and embedding connecting grooves, the side windbreak is fixed to the outer surfaces of the fixed base frames and support rods. Through the magnetic attraction of the magnetic connection layer between the lower surface of the upper windbreak and the upper surfaces of the main windbreak and the side windbreak, the lower surface of the upper windbreak is connected and fixed to the upper surfaces of the main windbreak and the side windbreak. The rare earth permanent magnet strips on the edges of the upper surface and the side surface of the side windbreak automatically adsorb and seal with the metal support structure of the mine inner wall. Thus, the device can achieve rapid assembly of the windbreak components, improve assembly efficiency, and the components can be folded and stored separately for easy storage and carrying.

[0017] 2. This utility model incorporates a protective component comprising a polyester glass fiber composite layer, a PVC modified surface film, and a high-strength polyester fabric. The component also includes a conductive fiber mesh, a nano-outer protective layer, and a PTFE coating. During use, the polyester glass fiber composite layer enhances the flame-retardant effect of the windbreak. Simultaneously, the PVC modified surface film on the surface of the polyester glass fiber composite layer maintains flame retardancy while also providing antistatic properties. The high-strength polyester fabric, coated with polyvinyl chloride resin, significantly improves the tear resistance of the windbreak. The addition of graphene to the conductive fiber mesh material, along with the antistatic coating, further enhances the antistatic effect. The addition of silicon carbide to the nano-outer protective layer material effectively improves wear resistance. The PTFE coating reduces the coefficient of friction on the outer surface, extending service life. Thus, the device features a multi-layered structure on the windbreak surface, greatly enhancing the windbreak's strength and extending its service life. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the temporary ventilation barrier device for underground mining according to the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of the assembly components of the temporary ventilation barrier device for underground mines according to this utility model.

[0020] Figure 3 This is a three-dimensional structural diagram of the fixed base frame of the temporary ventilation barrier device for underground mines according to this utility model.

[0021] Figure 4 This is a three-dimensional structural diagram of the protective components of the temporary ventilation barrier device for underground mines according to this utility model.

[0022] In the diagram: 1. Fixed base frame; 2. Support rod; 3. Assembly components; 301. Embedded mounting slot; 302. Embedded mounting strip; 303. Main wind deflector; 304. Embedded connecting slot; 305. Embedded connecting strip; 306. Side wind deflector; 307. Top wind deflector; 308. Magnetic connecting layer; 309. Rare earth permanent magnet strip; 4. Fixing plate; 5. Fixing screw; 6. Protective components; 601. Polyester glass fiber composite layer; 602. PVC modified surface film; 603. High-strength polyester cloth; 604. Conductive fiber mesh; 605. Nano outer protective layer; 606. PTFE coating. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] like Figures 1 to 4As shown, the temporary ventilation barrier device for underground mines of this utility model includes a fixed base frame 1 and an assembly component 3. The fixed base frame 1 is an integrated structure, and a support rod 2 is rotatably connected to the inner side of the fixed base frame 1. The assembly component 3 is disposed on the surface of the fixed base frame 1.

[0025] The assembly component 3 includes an embedded mounting groove 301, an embedded mounting strip 302, a main wind deflector 303, an embedded connecting groove 304, an embedded connecting strip 305, a side wind deflector 306, an upper wind deflector 307, a magnetic connecting layer 308, and a rare earth permanent magnet strip 309. The embedded mounting groove 301 is formed on the inner surface of the fixed base frame 1 and the support rod 2, and the embedded mounting strip 302 is embedded inside the embedded mounting groove 301. The main wind deflector 303 is provided on the surface of the embedded mounting strip 302. The fixed base frame 1 and the support rod 2 are symmetrically arranged on both sides of the main wind deflector 303. There are two sets of fixed base frames 1 and support rods 2. The outer surfaces of the fixed base frame 1 and the support rod 2 are... An embedded connecting groove 304 is provided on the surface, and an embedded connecting strip 305 is embedded inside the embedded connecting groove 304. A side wind deflector 306 is connected to the surface of the embedded connecting strip 305. The side wind deflector 306 and the embedded connecting strip 305 are a tightly connected integrated structure. An upper wind deflector 307 is connected to the upper surface of the main wind deflector 303 and the side wind deflector 306. A magnetic connection layer 308 is provided on the lower surface of the upper wind deflector 307 and the upper surface of the main wind deflector 303 and the side wind deflector 306. Two sets of side wind deflectors 306 are symmetrically arranged. Rare earth permanent magnet strips 309 are embedded on the outer edge of the side wind deflector 306 and the upper edge of the upper wind deflector 307.

[0026] In use, the support rod 2 is rotated and connected to the upper inner side of the fixed base frame 1, and the support rod 2 is unfolded upward. The main wind barrier 303 is fixed to the surface of the two sets of fixed base frames 1 and the two sets of support rods 2 by the engagement of the embedded mounting strip 302 with the inner side of the embedded mounting groove 301. The side wind barrier 306 is fixed to the outer surface of the fixed base frame 1 and the support rod 2 by the engagement of the embedded connecting strip 305 with the inner side of the embedded connecting groove 304. The lower surface of the upper wind barrier 307 is connected and fixed to the upper surface of the main wind barrier 303 and the side wind barrier 306 by the magnetic attraction of the magnetic connecting layer 308 between the lower surface of the upper wind barrier 307 and the upper surface of the main wind barrier 303 and the side wind barrier 306. The rare earth permanent magnet strip 309 on the edge of the upper surface and side surface of the upper wind barrier 307 and the outer surface of the side wind barrier 306 automatically adsorbs and seals with the metal support structure of the mine inner wall.

[0027] Please refer to Figures 3 to 4 A fixing plate 4 is installed on the lower inner side of the fixed base frame 1, and a fixing screw 5 is threadedly connected to the surface of the fixing plate 4. A protective component 6 for strengthening protection is provided on the surface of the main wind barrier 303.

[0028] In some embodiments, the protective component 6 includes a polyester glass fiber composite layer 601, a PVC modified surface film 602, and a high-strength polyester fabric 603. The polyester glass fiber composite layer 601 is disposed on the outer surface of the main windbreak 303, the side windbreak 306, and the upper windbreak 307. The outer surface of the polyester glass fiber composite layer 601 is connected to the PVC modified surface film 602. The outer surface of the PVC modified surface film 602 is provided with the high-strength polyester fabric 603. The protective component 6 also includes a conductive fiber mesh 604, a nano outer protective layer 605, and a PTFE coating 606. The outer surface of the high-strength polyester fabric 603 is provided with the conductive fiber mesh 604. The outer surface of the conductive fiber mesh 604 is connected to the nano outer protective layer 605. The outer surface of the nano outer protective layer 605 is provided with the PTFE coating 606.

[0029] It should be noted that the polyester glass fiber composite layer 601 can improve the flame retardancy of the windbreak. At the same time, the PVC modified surface film 602 on the surface of the polyester glass fiber composite layer 601 can also have antistatic function while maintaining flame retardancy. The high-strength polyester cloth 603 is coated with polyvinyl chloride resin, which can greatly improve the tear resistance of the windbreak. The addition of graphene to the conductive fiber mesh 604 material and the outer coating of antistatic coating can further improve the antistatic effect. The addition of silicon carbide to the nano outer protective layer 605 material can effectively improve wear resistance. The PTFE coating 606 can reduce the coefficient of friction of the outer surface and extend the service life.

[0030] In summary, when using the above-mentioned temporary ventilation barrier device in the mine, the support rod 2 is first rotated and connected to the upper inner side of the fixed base frame 1 to unfold the support rod 2 upward. The main ventilation barrier 303 is fixed to the surfaces of the two sets of fixed base frames 1 and the two sets of support rods 2 by the engagement of the embedded mounting strip 302 with the inner side of the embedded mounting groove 301. The side ventilation barrier 306 is fixed to the outer surface of the fixed base frame 1 and the support rod 2 by the engagement of the embedded connecting strip 305 with the inner side of the embedded connecting groove 304. The lower surface of the upper ventilation barrier 307 is connected and fixed to the upper surface of the main ventilation barrier 303 and the side ventilation barrier 306 by the magnetic attraction of the magnetic connection layer 308 between the lower surface of the upper ventilation barrier 307 and the upper surface of the main ventilation barrier 303 and the side ventilation barrier 306. The rare earth permanent magnet strip 309 on the edge of the upper surface and side surface of the upper ventilation barrier 307 and the outer surface of the side ventilation barrier 306 automatically adsorbs and seals with the metal support structure of the mine wall.

[0031] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A temporary ventilation barrier device for underground mining, comprising a fixed base frame (1) and an assembly assembly (3), characterized in that: The fixed base frame (1) is an integrated structure, and a support rod (2) is rotatably connected to the inner side of the fixed base frame (1). The assembly component (3) is set on the surface of the fixed base frame (1), and the assembly component (3) includes an embedded mounting groove (301), an embedded mounting strip (302), a main wind deflector (303), an embedded connecting groove (304), an embedded connecting strip (305), a side wind deflector (306), an upper wind deflector (307), a magnetic connecting layer (308), and a rare earth permanent magnet strip (309). The embedded mounting groove (301) is opened on the inner surface of the fixed base frame (1) and the support rod (2), and an embedded mounting strip (302) is embedded in the inner side of the embedded mounting groove (301). The main wind deflector (303) is set on the surface of the embedded mounting strip (302), and the fixed base frame (1) and the support rod (2) are symmetrically arranged on both sides of the main wind deflector (303). The fixed base frame (1) and the support rod (2) are each provided with two sets.

2. The temporary ventilation barrier device for underground mining according to claim 1, characterized in that, The fixed bottom frame (1) and the support rod (2) have an embedded connecting groove (304) on their outer surfaces, and an embedded connecting strip (305) is embedded inside the embedded connecting groove (304).

3. The temporary ventilation barrier device for underground mining according to claim 1, characterized in that, The surface of the embedded connecting strip (305) is connected to a side wind barrier (306), and the side wind barrier (306) and the embedded connecting strip (305) are an integrated structure that is tightly connected.

4. The temporary ventilation barrier device for underground mining according to claim 1, characterized in that, The upper surfaces of the main wind deflector (303) and the side wind deflector (306) are connected to an upper wind deflector (307), and the lower surface of the upper wind deflector (307) and the upper surfaces of the main wind deflector (303) and the side wind deflector (306) are provided with magnetic connection layers (308).

5. The temporary ventilation barrier device for underground mining according to claim 1, characterized in that, Two sets of side wind barriers (306) are symmetrically arranged, and rare earth permanent magnet strips (309) are embedded in the outer edge of the side wind barriers (306) and the upper edge of the upper wind barriers (307).

6. The temporary ventilation barrier device for underground mining according to claim 1, characterized in that, A fixing plate (4) is installed on the lower inner side of the fixed base frame (1), and a fixing screw (5) is threaded onto the surface of the fixing plate (4).

7. The temporary ventilation barrier device for underground mining according to claim 1, characterized in that, The surface of the main windbreak (303) is provided with a protective component (6) for enhanced protection. The protective component (6) includes a polyester glass fiber composite layer (601), a PVC modified surface film (602), and a high-strength polyester fabric (603). The polyester glass fiber composite layer (601) is provided on the outer surface of the main windbreak (303), the side windbreak (306), and the upper windbreak (307). The outer surface of the polyester glass fiber composite layer (601) is connected to the PVC modified surface film (602). The outer side of the PVC modified surface film (602) is provided with a high-strength polyester fabric (603).

8. The temporary ventilation barrier device for underground mining according to claim 7, characterized in that, The protective component (6) further includes a conductive fiber mesh (604), a nano outer protective layer (605), and a PTFE coating (606), and the conductive fiber mesh (604) is provided on the outside of the high-strength polyester fabric (603).

9. The temporary ventilation barrier device for underground mining according to claim 8, characterized in that, The conductive fiber mesh (604) is connected to a nano-protective layer (605) on the outside, and a PTFE coating (606) is provided on the outer surface of the nano-protective layer (605).

Images