Mine underground ventilation system

Abstract

The present invention discloses an underground mine ventilation system, which comprises a chamber and a main fan, wherein the chamber has an air inlet area, a placement area, a maintenance area and an air outlet area, wherein the air inlet area, the placement area, the maintenance area and the air outlet area are arranged in sequence along the length direction thereof, wherein the main fan is arranged in the placement area, wherein the axial direction of the main fan is substantially parallel to the length direction of the chamber, wherein the air inlet of the main fan faces the air inlet area, and the air outlet of the main fan faces the air outlet area, and the main fan can be moved along the axial direction thereof to the maintenance area. The chamber in the underground mine ventilation system of the present invention has a long service life, high stability and safety, and is convenient for the maintenance of the main fan.

Description

Technical Field

[0001] The invention belongs to the technical field of mining, and in particular, relates to an underground mine ventilation system. Background Art

[0002] In the related art, in the underground ventilation system of mines, such as the main fan chamber of metal and non-metal mines, the main fan is generally repaired by lateral maintenance. Therefore, it is necessary to provide a certain maintenance space on the side of the main fan, that is, along the span direction of the chamber, so that technicians can operate, maintain and debug the main fan during operation.

[0003] However, since there is a certain maintenance space on the side of the main fan and a lifting equipment needs to be installed above the chamber, the span and height of the chamber are large, the construction workload and the support volume for fixing the chamber are large, resulting in poor stability and safety of the chamber and high construction costs. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the present invention proposes an underground mine ventilation system, in which the chambers in the underground mine ventilation system have a long service life, high stability and safety, and are convenient for maintenance of the main fan.

[0006] According to an embodiment of the present invention, the underground mine ventilation system includes: a chamber, wherein the chamber has an air inlet area, a placement area, a maintenance area and an air outlet area, and the air inlet area, the placement area, the maintenance area and the air outlet area are arranged in sequence along the length direction thereof; a main fan, wherein the main fan is arranged in the placement area, the axial direction of the main fan is substantially parallel to the length direction of the chamber, the air inlet of the main fan faces the air inlet area, the air outlet of the main fan faces the air outlet area, and the main fan can be moved along its axial direction to the maintenance area.

[0007] According to the mine underground ventilation system of the embodiment of the present invention, since the main fan is arranged in the placement area, the axial direction of the main fan is substantially parallel to the length direction of the chamber, and the main fan can be moved along its axial direction to the maintenance area, so when the main fan needs to be repaired, the main fan can be moved along the axial direction to move it to the maintenance area. In other words, the maintenance area is located in the length direction of the chamber. Compared with the traditional lateral maintenance chamber arrangement, the chamber of the mine underground ventilation system of the present invention has a smaller span and a compact structure, so that the chamber of the mine underground ventilation system of the present invention has a long service life, high stability and safety, and is convenient for the maintenance of the main fan.

[0008] In some embodiments, a slide rail is provided at the bottom of the chamber, the slide rail is at least partially located in the placement area and the maintenance area, the slide rail extends along the length direction of the chamber, and the main fan is movable along the length direction of the slide rail.

[0009] In some embodiments, the underground mine ventilation system further includes a lifting device, which is disposed in the chamber, and the lifting device is used to move the main fan along the length direction of the chamber.

[0010] In some embodiments, the lifting device includes at least one of a hook and a lifting steel beam.

[0011] In some embodiments, the underground mine ventilation system further includes a stopper, wherein the stopper is located on one side of the slide rail, and the stopper is located in the maintenance area for stopping the main fan.

[0012] In some embodiments, the air inlet area is provided with a wind wall, and a wind tube runs through the wind wall, one end of the wind tube is connected to the air inlet of the main fan, and the other end of the wind tube is connected to the air inlet area.

[0013] In some embodiments, the wind wall is provided with an inspection opening on one side in the width direction thereof, which passes through the air inlet area and the placement area. The height of the inspection opening is not higher than the height of the wind wall. The inspection opening is provided with an openable and closable safety door, and when the safety door is opened, the air inlet area is connected with the placement area.

[0014] In some embodiments, the underground mine ventilation system further includes a butterfly valve connecting cylinder, one end of the butterfly valve connecting cylinder is connected to the air cylinder, and the other end of the butterfly valve connecting cylinder is connected to the air inlet of the main fan.

[0015] In some embodiments, a protective cover is provided at one end of the air duct away from the main fan.

[0016] In some embodiments, the cross-sectional area of ​​the air inlet zone gradually decreases from a side adjacent to the placement zone to a side away from the placement zone, and the cross-sectional area of ​​the air outlet zone gradually decreases from a side adjacent to the maintenance zone to a side away from the maintenance zone.

[0017] In some embodiments, there are multiple main fans, and the axes of the multiple main fans are parallel to the length direction of the chamber, and are arranged at intervals along a direction perpendicular to the length direction of the chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of an underground mine ventilation system according to an embodiment of the present invention.

[0019] Figure 2 It is a plan view of an underground mine ventilation system according to an embodiment of the present invention.

[0020] Figure 3 is along Figure 2 Sectional view of AA.

[0021] Figure 4 is along Figure 2 Cross-sectional view of BB.

[0022] Reference numerals:

[0023] 100. Chamber;

[0024] 11. Air inlet area; 12. Placement area; 13. Maintenance area; 14. Air outlet area;

[0025] 21. Main fan; 22. Butterfly valve connecting tube;

[0026] 31. Lifting device; 311. Lifting hook; 312. Lifting steel beam;

[0027] 41. slide rail; 411. stopper;

[0028] 51. Wind wall; 511. Inspection opening; 512. Safety door; 513. Wind duct; 514. Protective cover. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0030] Reference below Figures 1 to 4 An underground mine ventilation system according to an embodiment of the present invention is described.

[0031] like Figure 1 and Figure 2 As shown, the underground mine ventilation system includes a chamber 100 and a main fan 21. The chamber 100 has an air inlet area 11, a storage area 12, a maintenance area 13 and an air outlet area 14, and the air inlet area 11, the storage area 12, the maintenance area 13 and the air outlet area 14 are arranged in sequence along the length direction thereof. In other words, the connecting direction of the air inlet area 11, the storage area 12, the maintenance area 13 and the air outlet area 14 is the length direction of the chamber 100.

[0032] The main fan 21 is arranged in the placement area 12, and the axial direction of the main fan 21 is substantially parallel to the length direction of the chamber 100. The air inlet of the main fan 21 faces the air inlet area 11, and the air outlet of the main fan 21 faces the air outlet area 14, that is, the gas to be replaced enters the air inlet of the main fan 21 from the air inlet area 11, and is then discharged from the air outlet of the main fan 21, and is discharged from the air outlet area 14 to the outside of the chamber 100. The main fan 21 can be moved along its axial direction to the maintenance area 13.

[0033] like Figure 1 and Figure 2 As shown, since the main fan 21 is arranged in the placement area 12, the axial direction of the main fan 21 is substantially parallel to the length direction of the chamber 100, and the main fan 21 can be moved along its axial direction to the maintenance area 13, so when the main fan 21 needs to be repaired, the main fan 21 can be moved along the axial direction to move it to the maintenance area 13. In other words, the maintenance area 13 is located in the length direction of the chamber 100. Compared with the lateral maintenance chamber 100 arrangement in the prior art, the chamber 100 of the mine underground ventilation system of the embodiment of the present invention has a smaller span and a compact structure, so that the chamber 100 of the mine underground ventilation system of the embodiment of the present invention has a long service life, high stability and safety, and is convenient for the maintenance of the main fan 21.

[0034] In some embodiments, Figure 1 and Figure 2 As shown, a slide rail 41 is provided at the bottom of the chamber 100. The slide rail 41 is at least partially located in the placement area 12 and the maintenance area 13. The slide rail 41 extends along the length direction of the chamber 100, and the main fan 21 can move along the length direction of the slide rail 41. Specifically, a pulley (not shown) is arranged at the bottom of the main fan 21, and a slide groove matched with the pulley is provided on the slide rail 41. The main fan 21 can slide along the length direction of the slide rail 41 through the pulley. Therefore, when the main fan 21 needs to be repaired, the main fan 21 can be pushed toward the maintenance area 13 (such as Figure 1 The left side in the figure) is moved to move the main fan 21 into the maintenance area 13, thereby facilitating the operator's maintenance work on the main fan 21.

[0035] Alternatively, if Figure 1 As shown, the slide rail 41 is away from the side of the air inlet area 11 (such as Figure 1 A stopper 411 is installed on the left side of the main fan 21 to stop the main fan 21 and prevent the main fan 21 from sliding during maintenance, thereby improving the safety of the main fan 21 during maintenance.

[0036] In some embodiments, Figure 1 and Figure 4As shown, the underground mine ventilation system also includes a lifting device 31, which is arranged in the chamber 100, and the lifting device is used to move the main fan 21 along the length direction of the chamber 100. Specifically, the lifting device 31 includes a hook 311 and a lifting steel beam 312, and the hook 311 and the lifting steel beam 312 are both installed on the top wall of the chamber 100. When the main fan 21 needs to be lifted, the hook 311 and the lifting steel beam 312 can be used in combination to facilitate the operator to inspect and repair the main fan 21.

[0037] In some embodiments, Figures 1 to 3 As shown, the air inlet area 11 is provided with a wind wall 51, which is cast with reinforced concrete. A wind tube 513 runs through the wind wall 51. One end of the wind tube 513 (as shown in FIG. Figure 2 The left end of the wind tube 513 is connected to the air inlet of the main fan 21, and the other end of the wind tube 513 (such as Figure 2 The right end of the wind tube 513 is connected to the air inlet area 11, and a protective cover 514 is provided at one end of the wind tube 513 away from the main fan 21, and the protective cover 514 is detachably connected to the wind wall 51.

[0038] Alternatively, if Figures 1 to 3 As shown, the wind wall 51 is provided with an inspection port 511 penetrating the air inlet area 11 and the placement area 12 on one side in the width direction thereof, the height of the inspection port 511 is not higher than the height of the wind wall 51, and an openable and closable safety door 512 is provided on the inspection port 511, and when the safety door 512 is opened, the air inlet area 11 is connected with the placement area 12. It should be noted that the width direction of the wind wall 51 is the span direction of the chamber 100, that is, the direction perpendicular to the length direction of the chamber 100.

[0039] Optionally, the height of the inspection port 511 is comparable to the height of a human body, and maintenance personnel can enter the placement area 12 and the inspection area 13 through the inspection port 511 to inspect the main fan 21. At the same time, since the height of the inspection port 511 is lower than the height of the wind wall 51, the upper end of the wind wall 51 can support the top wall of the chamber 100, that is, the span of the chamber 100 is not increased due to the opening of the inspection port 511.

[0040] In some embodiments, Figure 1 and Figure 2 As shown, the underground mine ventilation system also includes a butterfly valve connecting tube 22, one end of the butterfly valve connecting tube 22 (such as Figure 1 The right end of the butterfly valve connecting tube 22 is connected to the air cylinder 513, and the other end of the butterfly valve connecting tube 22 (such as Figure 1 The left end of the middle butterfly valve connecting tube 22 is connected to the air inlet of the main fan 21. Specifically, Figure 1As shown, the right end of the butterfly valve connecting cylinder 22 is connected to the wind wall 51 through poured concrete, and the left end of the butterfly valve connecting cylinder 22 is connected to the main fan 21 through bolts. When the main fan 21 needs to be repaired, the bolts between the butterfly valve connecting cylinder 22 and the main fan 21 can be removed, and then the main fan 21 can be moved from the placement area 12 to the maintenance area 13 for maintenance.

[0041] In some embodiments, Figure 1 and Figure 2 As shown, the air inlet area 11 is adjacent to one side of the placement area 12 (such as Figure 2 The left side of the middle air inlet area 11) to the side of the air inlet area 11 away from the placement area 12 (such as Figure 2 The cross-sectional area of ​​the air inlet area 11 gradually decreases, and the air outlet area 14 is adjacent to the side of the maintenance area 13 (such as Figure 2 The right side of the middle air outlet area 14) to the side of the air outlet area 14 away from the maintenance area 13 (such as Figure 2 The cross-sectional area of ​​the chamber 100 (on the left side of the middle air outlet zone 14) gradually decreases. In other words, the chamber 100 is a spindle-shaped structure with small ends and a large middle along its length direction.

[0042] Furthermore, if Figure 2 As shown, there are multiple main fans 21, the axes of the multiple main fans 21 are parallel to the length direction of the chamber 100, and the multiple main fans 21 are arranged at intervals along the length direction perpendicular to the chamber 100, thereby improving the ventilation efficiency of the underground mine ventilation system.

[0043] In the prior art, it is not easy to move the damaged main fan 21 to the maintenance area 13 in the lateral maintenance chamber 100, that is, the damaged main fan 21 needs to be hoisted and then moved to the maintenance area 13 along the span direction of the chamber 100, which requires increasing the height of the chamber 100, resulting in lower stability and safety of the chamber 100. However, the underground mine ventilation system of the present invention can directly move the damaged main fan 21 along its axial direction to the maintenance area 13 for maintenance when one of the main fans 21 is damaged, that is, the step of hoisting the damaged main fan 21 is omitted, thereby facilitating the maintenance of the main fan 21.

[0044] The following describes an underground mine ventilation system according to some specific examples of the present invention with reference to the accompanying drawings.

[0045] like Figures 1 to 4 As shown, the underground mine ventilation system includes a chamber 100, a main fan 21, a butterfly valve connecting tube 22, a wind wall 51, a slide rail 41, a lifting device 31 and a safety door 512.

[0046] like Figure 1 and Figure 2As shown, the chamber 100 has an air inlet area 11, a placement area 12, a maintenance area 13 and an air outlet area 14, which are arranged in sequence along the length direction thereof. The cross-sectional area from the left side of the air inlet area 11 to the right side of the air inlet area 11 gradually decreases, and the cross-sectional area from the right side of the air outlet area 14 to the left side of the air outlet area 14 gradually decreases. In other words, the chamber 100 has a spindle-shaped structure with small ends and a large middle along the length direction thereof, thereby improving the ventilation efficiency of the underground mine ventilation system.

[0047] like Figure 2 As shown, there are multiple main fans 21, and the multiple main fans 21 are all arranged in the placement area 12. The axes of the multiple main fans 21 are parallel to the length direction of the chamber 100, and the multiple main fans 21 are arranged at intervals along the length direction perpendicular to the chamber 100. The air inlets of the multiple main fans 21 face the air inlet area 11, and the air outlets of the multiple main fans 21 face the air outlet area 14. The gas to be replaced enters the air inlet of the main fan 21 from the air inlet area 11, and is then discharged from the air outlet of the main fan 21, and is discharged from the air outlet area 14 to the outside of the chamber 100. The multiple main fans 21 can be moved along their axial direction to the maintenance area 13.

[0048] like Figure 1 As shown, Figure 1 and Figure 2 As shown, the slide rail 41 is located at the bottom of the chamber 100, the slide rail 41 is located in the placement area 12 and the maintenance area 13, and extends along the length direction of the chamber 100. A pulley is arranged at the bottom of the main fan 21, and a slide groove matching the pulley is provided on the slide rail 41. The main fan 21 can slide along the length direction of the slide rail 41 through the pulley, so when the main fan 21 needs to be repaired, the main fan 21 can be pushed to move to the left to move the main fan 21 to the maintenance area 13, so as to facilitate the maintenance work of the main fan 21 by the operator. A stopper 411 is installed on the left side of the slide rail 41 to stop the main fan 21, which can prevent the main fan 21 from sliding during the maintenance process.

[0049] like Figure 1 and Figure 4 As shown, the lifting device 31 includes a hook 311 and a lifting steel beam 312, and the hook 311 and the lifting steel beam 312 are both installed on the top wall of the chamber 100, so as to move the main fan 21 along the length direction of the chamber 100. When the main fan 21 needs to be lifted, the hook 311 and the lifting steel beam 312 can be used in combination to facilitate the operator to inspect and repair the main fan 21.

[0050] like Figure 3As shown, the wind wall 51 is cast with reinforced concrete, and a wind tube 513 runs through the wind wall 51. The left end of the wind tube 513 is connected to the air inlet of the main fan 21, and the right end of the wind tube 513 is connected to the air inlet area 11. A protective cover 514 is provided at the right end of the wind tube 513, and the protective cover 514 is detachably connected to the wind wall 51.

[0051] like Figure 3 As shown, the wind wall 51 is provided with an inspection port 511 on one side in the width direction thereof, which passes through the wind inlet area 11 and the placement area 12. The height of the inspection port 511 is lower than the height of the wind wall 51, and the height of the inspection port 511 is equivalent to the height of a human body. The inspection port 511 is provided with an openable and closable safety door 512, and when the safety door 512 is opened, the wind inlet area 11 is connected to the placement area 12.

[0052] like Figure 1 As shown, the right end of the butterfly valve connecting cylinder 22 is connected to the wind wall 51 through poured concrete, and the left end of the butterfly valve connecting cylinder 22 is connected to the main fan 21 through bolts. When the main fan 21 needs to be repaired, the bolts between the butterfly valve connecting cylinder 22 and the main fan 21 can be removed, and then the main fan 21 can be moved from the placement area 12 to the maintenance area 13 for maintenance.

[0053] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0054] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0055] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0057] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0058] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A mine underground ventilation system, characterized in that: include: A chamber, wherein the chamber has an air inlet area, a placement area, an inspection area and an air outlet area, and the air inlet area, the placement area, the inspection area and the air outlet area are arranged in sequence along the length direction thereof; A main fan, the main fan is arranged in the placement area, the axial direction of the main fan is parallel to the length direction of the chamber, the air inlet of the main fan faces the air inlet area, the air outlet of the main fan faces the air outlet area, and the main fan can be moved along its axial direction to the maintenance area; A slide rail is provided at the bottom of the chamber, and at least a part of the slide rail is located in the placement area and the maintenance area. The slide rail extends along the length direction of the chamber, and the main fan is movable along the length direction of the slide rail. It also includes a lifting device, which is arranged in the chamber and is used to move the main fan along the length direction of the chamber; The lifting device includes at least one of a hook and a lifting steel beam; There are multiple main fans, and the axes of the multiple main fans are parallel to the length direction of the chamber, and are arranged at intervals along a direction perpendicular to the length direction of the chamber.

2. The underground mine ventilation system according to claim 1, characterized in that: It also includes a stopper, which is located on one side of the slide rail and is located in the maintenance area to stop the main fan.

3. The underground mine ventilation system according to claim 1, characterized in that: The air inlet area is provided with a wind wall, and a wind tube runs through the wind wall. One end of the wind tube is connected to the air inlet of the main fan, and the other end of the wind tube is connected to the air inlet area.

4. The underground mine ventilation system according to claim 3, characterized in that: The wind wall is provided with an inspection opening on one side in the width direction thereof which passes through the air inlet area and the placement area. The height of the inspection opening is not higher than the height of the wind wall. The inspection opening is provided with an openable and closable safety door, and when the safety door is opened, the air inlet area is connected with the placement area.

5. The underground mine ventilation system according to claim 3, characterized in that: It also includes a butterfly valve connecting cylinder, one end of which is connected to the wind cylinder, and the other end of which is connected to the air inlet of the main fan.

6. The underground mine ventilation system according to claim 3, characterized in that: A protective cover is provided at one end of the air duct away from the main fan.

7. The underground mine ventilation system according to any one of claims 1 to 6, characterized in that: The cross-sectional area of ​​the air inlet area from a side adjacent to the placement area to a side away from the placement area gradually decreases, and the cross-sectional area of ​​the air outlet area from a side adjacent to the maintenance area to a side away from the maintenance area gradually decreases.

Images