Mine roadway ventilation device

Abstract

The application provides a mine roadway ventilation device, which comprises a ventilation pipe section, an inner shell arranged in the inner cavity of the ventilation pipe section in a sleeving mode, the inner shell being arranged at the air inlet end of the ventilation pipe section, a first limiting piece and a first connecting piece being arranged on the air inlet end surface of the inner shell, and a filtering assembly, the filtering assembly comprising a first fixing ring and a filtering screen arranged in the inner cavity of the first fixing ring, a second limiting piece and a second connecting piece being arranged on the filtering screen, the second limiting piece being in concave-convex cooperation with the first limiting piece, and the first connecting piece being connected with the second connecting piece, so that quick installation operation is realized through the concave-convex cooperation between the second limiting piece and the first limiting piece, and the connection stability is ensured through the connection between the first connecting piece and the second connecting piece.

Description

Technical Field

[0001] This utility model belongs to the field of coal mine production technology, and specifically relates to a mine roadway ventilation device. Background Technology

[0002] Mine roadways are a general term for various underground spaces excavated in different rocks along different directions, at different angles, with different cross-sections and lengths, serving different ranges and for different purposes. Mine roadways are named and classified according to their spatial dimensions, dip direction, location, service range, and purpose. During the construction and use of mines, to prevent explosions due to excessively high methane concentrations deep within the mine, ventilation systems need to be installed in the mine roadways to maintain a low methane concentration. These ventilation systems control the methane concentration by extracting methane-containing gases from deep within the mine.

[0003] Current mine roadway ventilation devices typically incorporate dust filters to intercept impurities and prevent internal contamination. However, these filters are bolted in place, making connection and positioning difficult and operation cumbersome. Therefore, it is necessary to provide a mine roadway safety ventilation device that addresses these technical problems. Utility Model Content

[0004] To address some or all of the aforementioned technical problems in the existing technology, this utility model proposes a mine roadway ventilation device. This mine roadway ventilation device can be quickly positioned, thereby ensuring the rapid disassembly and installation of the filter components.

[0005] According to this utility model, a mine roadway ventilation device is provided, comprising:

[0006] ventilation duct short section

[0007] An inner housing is fitted inside the cavity of the ventilation duct section, the inner housing being located at the air inlet end of the ventilation duct section, and a first limiting member and a first connecting member are provided on the air inlet end face of the inner housing.

[0008] A filter assembly includes a first fixing ring and a filter screen fitted inside the cavity of the first fixing ring. A second limiting member and a second connecting member are provided on the filter screen. The second limiting member is in concave-convex engagement with the first limiting member, and the first connecting member is connected to the second connecting member.

[0009] In one embodiment, the first limiting member is constructed as a groove, the second limiting member is constructed as a protrusion that matches the groove, the first connecting member is constructed as a protruding seat, the second connecting member is integrally disposed with the protrusion, and the protruding seat and the protrusion are connected by a through-hole insertion rod.

[0010] In one embodiment, there are two grooves evenly distributed circumferentially on the ventilation duct section, the protrusion is located above the corresponding groove, and the insertion rod passes through the protrusion and is inserted into the protrusion.

[0011] In one embodiment, the insertion rod is L-shaped so that one side is inserted into the protrusion and the other side abuts against the protrusion.

[0012] In one embodiment, at least two sets of lifting plates are fixedly installed on the top of the ventilation duct section, arranged axially at intervals. Each set of lifting plates is fixedly installed with a fixing plate, and each fixing plate has a through hole.

[0013] In one embodiment, the filter assembly further includes a second fixing ring and a filter element sleeved in the inner cavity of the second fixing ring, wherein the second fixing ring is spaced apart at the air outlet end of the first fixing ring.

[0014] In one embodiment, the second fixing ring is connected to the first fixing ring via a connecting rod.

[0015] In one embodiment, a fan is provided in the inner cavity of the ventilation duct section, the fan being close to the air outlet end relative to the filter assembly, and a slide is provided on the outer wall of the fan, the slide being slidably connected to a slide rail provided in the inner cavity of the air outlet end of the ventilation duct section.

[0016] In one embodiment, a fan is disposed within the inner cavity of the ventilation duct section, and a slide is disposed on the outer wall of the fan. The slide rail is constructed as a guide groove extending axially with its bottom wall fixed to the inner wall of the ventilation duct section. The slide is constructed as a guide rod embedded in the guide groove. At least two evenly distributed guide grooves are disposed circumferentially on the ventilation duct section.

[0017] In one embodiment, a locking groove is provided on the wall of the slide rail, and a locking block that engages with the locking groove is rotatably connected to the slide block, the locking block being connected to the slide block via a torsion spring.

[0018] Compared with existing technologies, the advantages of this utility model are as follows: This mine roadway ventilation device, by setting limiting components on the inner shell and the filter screen for concave-convex fitting and limiting during the connection process, can quickly install and position the filter assembly onto the ventilation duct section, achieving rapid installation. Simultaneously, the connection between the first and second connecting components ensures connection stability by placing the filter assembly onto the ventilation duct section. Attached Figure Description

[0019] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, in which:

[0020] Figure 1 A schematic diagram of a preferred embodiment of a mine roadway safety ventilation device provided by this utility model;

[0021] Figure 2 This is a three-dimensional structural diagram showing the connection between the filter screen, filter element, and inner shell of this utility model.

[0022] Figure 3 This is a partial enlarged view of part A of this utility model;

[0023] Figure 4 This is a perspective view of the inner shell of this utility model;

[0024] Figure 5 This is a three-dimensional structural diagram of the connection between the first fixing ring, the second fixing ring, and the connecting rod of this utility model.

[0025] Figure 6 This is a schematic diagram of the main structure of the ventilation duct of this utility model;

[0026] Figure 7 This is a partial enlarged view of part B of this utility model.

[0027] In the accompanying drawings, the same parts are labeled with the same reference numerals. The drawings are not drawn to scale. Detailed Implementation

[0028] To make the technical solution and advantages of this utility model clearer, the exemplary embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not an exhaustive list of all embodiments. Furthermore, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0029] An embodiment of this utility model provides a mine roadway ventilation device. For example... Figures 1 to 7As shown, the mine roadway ventilation device includes a ventilation duct section 1, an inner shell 4, and a filter assembly. The ventilation duct section 1 is a short section used to assemble the ventilation duct and is the main body of the ventilation duct, primarily used for air transport. The inner shell 4 is housed within the cavity of the ventilation duct section 1. The inner shell 4 is located at the air inlet end of the ventilation duct section 1 and primarily serves to strengthen this section for installing the filter assembly. A first limiting member 10 and a first connecting member 9 are provided on the air inlet end face of the inner shell 4. The filter assembly includes a first fixing ring 7 and a filter screen 3. The filter screen 3 is located within the cavity of the first fixing ring 7. The first fixing ring 7 primarily supports and defines the filter screen 3 to form an integral component, facilitating the installation and disassembly of the filter screen 3 and supporting rapid assembly and disassembly. A second limiting member 11 and a second connecting member 19 are provided on the filter screen 3. The second limiting member 11 engages with the first limiting member 10. The first connecting member 9 connects to the second connecting member 19.

[0030] As can be seen, in this application, by providing limiting components on the inner housing 4 and the filter screen 3 for concave-convex fitting and limiting during the connection process, the filter assembly can be quickly installed and positioned onto the ventilation duct section 1, achieving rapid installation. Simultaneously, the connection between the first connector 9 and the second connector ensures the stability of the connection by placing the filter assembly onto the ventilation duct section.

[0031] Specifically, the first limiting member 10 is constructed as a groove. The second limiting member 11 is constructed as a protrusion that matches the groove. The first connecting member 9 is constructed as a protruding seat. The second connecting member 19 is integrally formed with the protrusion. The protruding seat and the protrusion are connected by a through-hole insertion rod 8.

[0032] Two grooves are evenly distributed circumferentially on the ventilation duct section 1. A protrusion is located above the corresponding groove. A locking rod 8 passes through the protrusion and inserts into the protrusion. Preferably, the locking rod 8 is L-shaped. One side of the locking rod 8 is inserted into the protrusion, while the other side abuts against the protrusion. The locking rod 8 has a simple structure, allowing for locking and unlocking even with one hand.

[0033] like Figure 1 As shown, at least two sets of lifting plates 5 are fixedly installed on the top of the ventilation duct section 1. Adjacent sets of lifting plates 5 are spaced apart along the axial direction of the ventilation duct section 1. A fixing plate 2 is fixedly installed on each set of lifting plates 5. Each fixing plate 2 has a through hole 20. This through hole 20 facilitates the use of bolts to pass through the fixing plate 2, thereby allowing the ventilation duct section 1 to be hoisted to the top of the tunnel.

[0034] The filter assembly also includes a second retaining ring 21 and a filter element 6. The filter element 6 is fitted into the inner cavity of the second retaining ring 21. The second retaining ring 21 is spaced apart at the air outlet end of the first retaining ring 7. Therefore, air passes through the filter screen 3 and then through the filter element 6 to achieve filtration. The filter element 6 and the second retaining ring 21 are connected as a single unit, facilitating the installation and removal of the filter element 6. The second retaining ring 21 is connected to the first retaining ring 7 via a connecting rod 12. Thus, the position of the second retaining ring 21 can be defined by the first retaining ring 7. In particular, this method combines the filter screen 3 and the filter element 6 together, facilitating integrated installation, removal, and cleaning.

[0035] During operation, the filter screen 3 and filter element 6 are positioned inside the inner housing 4 along with the corresponding first fixing ring 7 and second fixing ring 21. Disassembly is required by pulling up the inserting rod 8, which disconnects the filter screen 3 from the inner housing 4. This allows the protrusion to be easily removed from the groove, facilitating the removal of the filter screen 3 and filter element 6. The removed filter screen 3 and filter element 6 can then be cleaned or replaced to prevent blockage of the ventilation duct section 1. Conversely, during installation, the protrusion needs to be aligned with the groove to quickly position the filter screen 3 onto the inner housing 4. The inserting rod 8 is then inserted into the protrusion after passing through the protruding seat to set the filter screen 3 into its installation position. Thus, the above connection allows for the rapid installation and removal of the filter screen 3 and filter element 6.

[0036] It should be noted that those skilled in the art can adjust the filtration capacity and model of filter screen 3 and filter element 6 according to actual use.

[0037] A fan 14 is installed inside the cavity of the ventilation duct section 1. The fan 14 is located near the air outlet end relative to the filter assembly. The fan 14 is used to draw air from the mine roadway into the cavity of the ventilation duct section 1. A slide 13 is installed on the outer wall of the fan 14. At the same time, a slide rail 15 is installed in the cavity at the air outlet end of the ventilation duct section 1. The slide 13 and the slide rail 15 are slidably connected.

[0038] Structurally, the slide rail 15 is constructed as a guide groove whose bottom wall is fixed to the inner wall of the ventilation duct section 1, and the guide groove extends along the axial direction of the ventilation duct section 1. The slide seat 13 is constructed as a guide rod embedded in the guide groove. To ensure effective cooperation between the guide rod and the guide groove, the guide rod is constructed as a generally U-shaped structure, so that two sides of the U-shaped guide rod extend into the guide groove in the axial direction of the ventilation duct section 1. At least two evenly distributed guide grooves are provided in the circumferential direction of the ventilation duct section 1. It is easy to understand that the number and position of the guide rods correspond one-to-one with the guide grooves. In this application, two slide rails 15 are provided at the top and bottom walls of the inner wall of the ventilation duct section 1 for illustration. Each slide rail 15 is slidably connected to a slide seat 13. The fan 14 is fixedly mounted on both slide seats 13.

[0039] A locking groove 18 is provided on one side of the slide rail 15. At the same time, a locking block 17 is rotatably connected to the slide block 13 for engaging with the locking groove 18. A torsion spring 16 is fixedly connected between the locking block 17 and the slide block 13. The locking block 17 is generally L-shaped.

[0040] During the installation of the fan 14, the slide block 13 is placed inside the slide rail 15, pushing the fan 14 into the ventilation duct section 1. During this process, the slide rail 15 guides the movement of the slide block 13. As the fan 14 moves into the ventilation duct section 1, the locking block 17 needs to be manually rotated towards the slide block 13, and the locking block 17 is then housed in the guide groove of the slide rail 15. At this time, the torsion spring 16 is subjected to force and accumulates elastic energy. As the fan 14 enters, the locking block 17 encounters the locking groove 18, and under the action of the torsion spring 16, the locking block 17 engages with the locking groove 18, and the fan 14 is installed in place. Conversely, during the disassembly of the fan 14, force can be applied to the locking block 17 to overcome the action of the torsion spring 16 and cause the locking block 17 to rotate towards the slide block 13. At this point, pulling the fan 14 unlocks the engagement between the locking block 17 and the locking slot 18, and the locking block 17 is retracted into the slot of the slide rail 15. Guided by the slide rail 15, the slide block 13 moves relative to the slide rail 15, pulling out the fan 14 and completing the disassembly. This design makes the fan 14 easy to disassemble and maintain.

[0041] After installation, the mine roadway safety ventilation device of this application is hoisted to the top of the mine roadway. In use, the fan 14 is started, so that the air in the mine passes through the filter screen 3 and the filter element 6 and is discharged from the ventilation duct section 1. The end of the ventilation duct section 1 away from the filter screen 3 is connected to a long pipe, which can draw the air out of the mine.

[0042] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and / or modifications falling within the scope of the present invention, and all changes and / or modifications made according to the embodiments of the present invention should be covered within the protection scope of the present invention.

Claims

1. A mine roadway ventilation device, characterized in that, include: ventilation duct short section An inner housing is fitted inside the cavity of the ventilation duct section, the inner housing being located at the air inlet end of the ventilation duct section, and a first limiting member and a first connecting member are provided on the air inlet end face of the inner housing. A filter assembly includes a first fixing ring and a filter screen fitted inside the cavity of the first fixing ring. A second limiting member and a second connecting member are provided on the filter screen. The second limiting member is in concave-convex engagement with the first limiting member, and the first connecting member is connected to the second connecting member.

2. The mine roadway ventilation device according to claim 1, characterized in that, The first limiting member is constructed as a groove, the second limiting member is constructed as a protrusion that matches the groove, the first connecting member is constructed as a protruding seat, the second connecting member is integrally formed with the protrusion, and the protruding seat and the protrusion are connected by a through-hole insertion rod.

3. The mine roadway ventilation device according to claim 2, characterized in that, The grooves are two in number and are evenly distributed around the circumference of the ventilation duct section. The protrusions are located above the corresponding grooves, and the insertion rod passes through the protrusions and is inserted into the protrusions.

4. The mine roadway ventilation device according to claim 3, characterized in that, The insertion rod is L-shaped, with one side inserted into the protrusion and the other side abutting against the protrusion.

5. The mine roadway ventilation device according to any one of claims 1 to 4, characterized in that, At least two sets of lifting plates are fixedly installed on the top of the ventilation duct section, arranged axially at intervals. Each set of lifting plates is fixedly installed with a fixing plate, and each fixing plate has a through hole.

6. The mine roadway ventilation device according to any one of claims 1 to 4, characterized in that, The filter assembly further includes a second fixing ring and a filter element sleeved in the inner cavity of the second fixing ring, wherein the second fixing ring is spaced apart at the air outlet end of the first fixing ring.

7. The mine roadway ventilation device according to claim 6, characterized in that, The second fixing ring is connected to the first fixing ring via a connecting rod.

8. The mine roadway ventilation device according to any one of claims 1 to 4, characterized in that, A fan is installed inside the cavity of the ventilation duct section. The fan is located near the air outlet end relative to the filter assembly. A slide is installed on the outer wall of the fan. The slide is slidably connected to a slide rail located in the cavity of the air outlet end of the ventilation duct section.

9. The mine roadway ventilation device according to claim 8, characterized in that, The slide rail is constructed as a guide groove extending axially on the inner wall of the ventilation duct section, with its bottom wall fixed to the inner wall. The slide block is constructed as a guide rod embedded in the guide groove. At least two evenly distributed guide grooves are provided in the circumferential direction of the ventilation duct section.

10. The mine roadway ventilation device according to claim 9, characterized in that, The slide rail has a locking groove on its wall, and a locking block that engages with the locking groove is rotatably connected to the slide block. The locking block is connected to the slide block by a torsion spring.

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