Intelligent ventilation device for coal mine

By designing adjustable coal mines intelligent ventilation device brackets and intelligent control systems, the problem of poor generalization and long customization cycle of the existing stents is solved, and the optimization of ventilation efficiency and the reduction of energy consumption are realized.

CN222414924UInactive Publication Date: 2025-01-28YANKUANG ENERGY GRP CO LTD DONGTAN COAL MINE
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Patent Information

Application Number
CN202421214482.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-30
Publication Date
2025-01-28
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing local ventilator brackets of coal mines need to be customized according to different models of ventilators, resulting in poor versatility and long customization cycle.

Method used

Designed a kind of intelligent ventilation device for coal mines. Its brackets include adjustable upper and lower branches and longitudes. The adaptive installation of different types of ventilators can be achieved through the bolt connection. The PLC controller and inverter are installed on the bracket to achieve intelligent control control Essence

Benefits of technology

It improves the generality of the ventilator bracket, avoids the problem of long custom cycle, and at the same time optimizes ventilation efficiency and reduce energy consumption through intelligent control.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of coal mine ventilation devices, and discloses a coal mine intelligent ventilation device which comprises a support and two mining local ventilators. Supporting feet are welded to the two sides of the lower portion of the mining local ventilator. The support comprises a main frame, two upper supporting plates and two lower supporting plates are welded to the upper side and the lower side of the main frame respectively, a plurality of upper longitudinal plates are installed between the two upper supporting plates, a plurality of lower longitudinal plates are installed between the two lower supporting plates, and the supporting feet are fixedly connected with the lower longitudinal plates. A plurality of first strip-shaped holes are formed in the upper supporting plate, and first mounting holes are formed in the two sides of the upper longitudinal plate. A plurality of second strip-shaped holes are formed in the lower supporting plate, and second mounting holes are formed in the two sides of the lower longitudinal plate; through holes are formed in the supporting feet, a plurality of third strip-shaped holes are formed in the upper longitudinal plate, and a plurality of fourth strip-shaped holes are formed in the lower longitudinal plate. The support of the mining local ventilator can be adjusted and installed in a matched mode according to the positions of the supporting feet of the mining local ventilators of different models, and the universality of the support is improved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine ventilation devices, in particular to an intelligent coal mine ventilation device. Background Art

[0002] The local ventilator in underground coal mines is one of the important equipment in the ventilation system. It is equivalent to the lungs of the mine excavation working face. Therefore, it is also the most important link in coal mine safety production.

[0003] The existing local ventilation of coal mining will use a double fan structure, one is the main fan and the other is the standby fan, and the two fans will be installed on the bracket up and down for use. For example, the announcement number CN218093618U announced a local fan bracket for mines that is easy to repair. In actual use, the applicant found that the above existing fan bracket devices are customized according to different models of fans, and can only install one model of fans. The fan bracket is not universal, and the customized processing cycle of the fan bracket is long. In order to solve the above problems, a coal mine intelligent ventilation device is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide an intelligent ventilation device for a coal mine in order to solve the above-mentioned problems.

[0005] The technical solution adopted by the utility model is as follows: an intelligent ventilation device for coal mines, comprising a bracket and two local ventilators for mines, wherein the two local ventilators for mines are arranged up and down and installed on the bracket;

[0006] A plurality of symmetrical legs are welded on both sides of the lower part of the mine local ventilator;

[0007] The bracket includes a main frame, two upper support plates are welded to the upper part of the main frame, two lower support plates are welded to the lower part of the main frame, a plurality of upper longitudinal plates are adjustably mounted between the two upper support plates by bolts, a plurality of lower longitudinal plates are adjustably mounted between the two lower support plates by bolts, and the support legs are fixedly connected to the lower longitudinal plates and the lower longitudinal plates by bolts;

[0008] The upper support plate is provided with a plurality of strip holes arranged at equal intervals, and both sides of the upper longitudinal plate are provided with mounting holes;

[0009] The lower support plate is provided with a plurality of strip holes arranged at equal intervals, and the two sides of the lower longitudinal plate are provided with mounting holes;

[0010] The supporting leg is provided with a through hole, the upper longitudinal plate is provided with a plurality of strip holes three arranged at equal intervals, and the lower longitudinal plate is provided with a plurality of strip holes four arranged at equal intervals.

[0011] In a preferred embodiment, a control box is fixedly mounted on the main frame, a PLC controller and a frequency converter are installed in the control box, the frequency converter is connected to the PLC controller, the frequency converter is electrically connected to a drive motor of the mine local ventilation fan, and a gas concentration detection sensor is electrically connected to the PLC controller.

[0012] In a preferred embodiment, the main frame includes four pillars, the upper support plate and the lower support plate are welded to the pillars, a cross bar is welded between two horizontally arranged pillars, and two longitudinal bars are welded between two longitudinally arranged pillars.

[0013] In a preferred embodiment, two inclined rods 1 are welded to the bottom of the upper support plate, and the bottom ends of the inclined rods 1 are welded to the support pillars.

[0014] In a preferred embodiment, two inclined rods 2 are welded to the bottom of the lower support plate, and the bottom ends of the inclined rods 2 are welded to the support pillars.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0016] 1. The bracket of the local ventilation fan for mining in the utility model can be adjusted and installed according to the position of the legs of the local ventilation fans for mining of different models, thereby improving the versatility of the bracket. In this way, there is no need to customize the fan bracket, thus avoiding a long customization cycle. In addition, the entire fan bracket has a simple structure and low manufacturing cost, and is worthy of popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the exploded three-dimensional structure of the utility model;

[0019] Figure 3 It is a three-dimensional schematic diagram of the internal structure of the control box in the utility model.

[0020] Markings in the figure: 1- bracket, 2- mine local ventilation fan, 3- support leg, 4- main frame, 5- upper support plate, 6- lower support plate, 7- upper longitudinal plate, 8- lower longitudinal plate, 9- strip hole one, 10- mounting hole one, 11- strip hole two, 12- mounting hole two, 13- through hole, 14- strip hole three, 15- strip hole four, 16- control box, 17- PLC controller, 18- inverter, 19- gas concentration detection sensor, 20- pillar, 21- cross bar, 22- longitudinal bar, 23- diagonal bar one, 24- diagonal bar two. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The following will be combined Figure 1-Figure 3 An intelligent ventilation device for coal mines according to an embodiment of the utility model is described in detail.

[0023] Example:

[0024] The utility model provides a coal mine intelligent ventilation device, referring to Figures 1 to 3 As shown, it includes a bracket 1 and two mine local ventilators 2. The two mine local ventilators 2 are arranged up and down and installed on the bracket 1. In this structure, the mine local ventilators 2 can be used to ventilate the mining area, and one of the two mine local ventilators 2 is a main fan and the other is a backup fan. When the main fan fails, the backup fan casing starts to run, thereby ensuring local ventilation of coal mining and avoiding excessive gas concentration.

[0025] It should be noted that the mine local ventilation fan is an existing equipment, which is a mine explosion-proof pressurized counter-rotating axial flow local ventilation fan. The specific model is: FBDNO8.0 / 2×55KW. It uses dual motors to drive dual impellers to rotate and exhaust air. The specific structure has been made public, so it will not be introduced in detail here.

[0026] refer to Figures 1 to 3 As shown, a control box 16 is fixedly installed on the main frame 4, and a PLC controller 17 and a frequency converter 18 are installed in the control box 16. The frequency converter 18 is connected to the PLC controller 17, and the frequency converter 18 is electrically connected to the driving motor of the mine local ventilator 2. The PLC controller 17 is electrically connected to a gas concentration detection sensor 19. This structure uses the gas concentration detection sensor 19 to detect the gas concentration in the coal mine operating area, and then the PLC controller 17 can control the frequency converter 18 to adjust the rotation speed of the driving motor of the mine local ventilator 2 according to the gas concentration, thereby adjusting the wind speed in real time, and then realizing the intelligent control of the mine local ventilator 2, making the operation of the mine local ventilator 2 more reasonable and reducing energy consumption.

[0027] It should be noted that the PLC controller 17, the frequency converter 18 and the gas concentration detection sensor 19 are all existing equipment. The PLC controller 17 adopts the Siemens S7-200 Smart series, the frequency converter 18 adopts the Siemens SINAMICS G series, and the model of the gas concentration detection sensor 19 is GT-M100. The above-mentioned specific control equipment and control programs have been disclosed, and this application does not improve the specific PLC control equipment and control programs, so no further introduction will be given here.

[0028] refer to Figures 1 to 3 As shown, a plurality of symmetrical legs 3 are welded on both sides of the lower part of the mine local ventilator 2. The legs 3 of this structure are convenient for supporting the mine local ventilator 2 and for installing the mine local ventilator 2 on the bracket 1.

[0029] refer to Figures 1 to 3 As shown, the bracket 1 includes a main frame 4, two upper support plates 5 are welded to the upper part of the main frame 4, two lower support plates 6 are welded to the lower part of the main frame 4, a plurality of upper longitudinal plates 7 are adjustably installed between the two upper support plates 5 by bolts, a plurality of lower longitudinal plates 8 are adjustably installed between the two lower support plates 6 by bolts, and the support legs 3 are fixedly connected to the upper longitudinal plates 7 and the lower longitudinal plates 8 by bolts. In this structure, two local mine ventilators 2 are respectively installed on the upper longitudinal plates 7 of the upper support plates 5 and the lower longitudinal plates 8 of the lower support plates 6, so that the two local mine ventilators 2 are arranged up and down and installed on the main frame 4, thereby completing the installation of the local mine ventilators 2.

[0030] refer to Figures 1 to 3 As shown, the upper support plate 5 is provided with a plurality of strip holes 9 arranged at equal intervals, and mounting holes 10 are provided on both sides of the upper longitudinal plate 7. This structure utilizes connecting bolts to penetrate the mounting hole 10 of the upper longitudinal plate 7 and the strip hole 9 of the upper support plate 5, and then the upper longitudinal plate 7 and the upper support plate 5 can be fixedly connected by screwing nuts into the connecting bolts. The design of the plurality of strip holes 9 of the upper support plate 5 can adjust the position of the upper longitudinal plate 7 according to the left and right positions of the legs 3 of different mine local ventilators 2, thereby adapting to the installation support of different mine local ventilators 2.

[0031] refer to Figures 1 to 3 As shown, the lower support plate 6 is provided with a plurality of strip holes 11 arranged at equal intervals, and the two sides of the lower longitudinal plate 8 are provided with mounting holes 12. This structure utilizes connecting bolts to penetrate the mounting holes 12 of the lower longitudinal plate 8 and the strip holes 11 of the lower support plate 6, and then the lower longitudinal plate 8 can be fixedly connected to the lower support plate 6 by screwing nuts into the connecting bolts. In addition, the design of the plurality of strip holes 11 of the lower support plate 6 can adjust the position of the upper longitudinal plate 7 according to the left and right positions of the legs 3 of different mine local ventilators 2, thereby adapting to the installation support of different mine local ventilators 2.

[0032] refer to Figures 1 to 3As shown, a through hole 13 is provided on the support leg 3, and a plurality of strip holes 14 arranged at equal intervals are provided on the upper longitudinal plate 7. This structure utilizes connecting bolts to penetrate the through hole 13 of the bracket 3 and the strip hole 14 of the upper longitudinal plate 7, and then screw in a nut, so that the support leg 3 can be fixed on the upper longitudinal plate 7. The design of the plurality of strip holes 14 can further enable two symmetrical support legs 3 of different spacings of different mine local ventilators 2 to be fixed on the upper longitudinal plate 7, thereby being suitable for the installation and support of mine local ventilators 2 of different diameters.

[0033] refer to Figures 1 to 3 As shown, the lower longitudinal plate 8 is provided with a plurality of strip holes four 15 arranged at equal intervals. This structure utilizes connecting bolts to penetrate the through holes 13 of the bracket 3 and the strip holes four 15 of the lower longitudinal plate 8, and then screw in the nuts, so that the support legs 3 can be fixed on the lower longitudinal plate 8. The design of the plurality of strip holes four 15 can further enable two symmetrical support legs 3 of different mining local ventilators 2 with different intervals to be fixed on the lower longitudinal plate 8, thereby being suitable for the installation and support of mining local ventilators 2 with different diameters.

[0034] refer to Figures 1 to 3 As shown, the main frame 4 includes four pillars 20, the upper support plate 5 and the lower support plate 6 are welded to the pillars 20, a cross bar 21 is welded between two laterally arranged pillars 20, and two longitudinal bars 22 are welded between two longitudinally arranged pillars 20. In this structure, the pillars 20, the cross bars 21 and the longitudinal bars 22 form a stable main frame 4 structure.

[0035] refer to Figures 1 to 3 As shown, two inclined rods 23 are welded to the bottom of the upper support plate 5, and the bottom ends of the inclined rods 23 are welded to the pillars 20. This structure uses the inclined rods 23 to reinforce and support the longer upper support plate 5.

[0036] refer to Figures 1 to 3 As shown, two inclined rods 24 are welded to the bottom of the lower support plate 6, and the bottom ends of the inclined rods 24 are welded to the pillars 20. This structure uses the inclined rods 1 23 to reinforce and support the longer lower support plate 6.

[0037] The implementation principle of an intelligent ventilation device for coal mines in the embodiment of the present application is as follows: when installing a local ventilation fan 2 for a mine, the personnel first select a corresponding number of upper longitudinal plates 7 and lower longitudinal plates 8 according to the number of left and right legs on the local ventilation fan 2 for a mine, and place them on the upper support rod 5 and the lower support plate 6, and then adjust the spacing between the upper longitudinal plates 7 and the lower longitudinal plates 8 according to the spacing between the left and right legs, and then use connecting bolts to connect the upper longitudinal plates 7 and the lower longitudinal plates 8 with the corresponding strip holes 1 9 of the upper support rod 5 and the strip holes 2 11 of the lower support plate 6, and then use connecting bolts to correspond the legs 3 of the two local ventilation fans for a mine to the upper longitudinal plates 7 and the lower longitudinal plates 8 respectively, and then use connecting bolts to connect the right angles 3 with the strip holes 3 14 of the upper longitudinal plates 7 and the strip holes 4 15 of the lower longitudinal plates 8, and the design of multiple strip holes 3 14 and strip holes 4 15 can fix the symmetrical legs 3 with different spacings on both sides of the local ventilation fan 2 for a mine, thereby completing the installation of two local ventilation fans for a mine;

[0038] When the mine local ventilation fan 2 is installed and used, the gas concentration detection sensor 19 can be used to detect the gas concentration in the coal mine working area. Then the PLC controller 17 can control the frequency converter 18 to adjust the rotation speed of the driving motor of the mine local ventilation fan 2 according to the gas concentration, thereby adjusting the wind speed in real time, thereby realizing the intelligent control of the mine local ventilation fan 2, making the operation of the mine local ventilation fan 2 more reasonable and reducing energy consumption.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An intelligent ventilation device for a coal mine, comprising a support (1) and two local ventilators (2) for mining, characterized in that: The two local mining ventilators (2) are installed on the bracket (1) in an upper and lower arrangement; A plurality of symmetrical supporting legs (3) are welded on both sides of the lower part of the mining local ventilator (2); The bracket (1) comprises a main frame (4), two upper supporting plates (5) are welded to the upper part of the main frame (4), two lower supporting plates (6) are welded to the lower part of the main frame (4), a plurality of upper longitudinal plates (7) are adjustably mounted between the two upper supporting plates (5) by bolts, a plurality of lower longitudinal plates (8) are adjustably mounted between the two lower supporting plates (6) by bolts, and the supporting foot (3) is fixedly connected to the upper longitudinal plates (7) and the lower longitudinal plates (8) by bolts; The upper support plate (5) is provided with a plurality of strip holes (9) arranged at equal intervals, and both sides of the upper longitudinal plate (7) are provided with mounting holes (10); The lower support plate (6) is provided with a plurality of strip holes (11) arranged at equal intervals, and the lower longitudinal plate (8) is provided with mounting holes (12) on both sides; The support leg (3) is provided with a through hole (13), the upper longitudinal plate (7) is provided with a plurality of strip holes (14) arranged at equal intervals, and the lower longitudinal plate (8) is provided with a plurality of strip holes (15) arranged at equal intervals.

2. The intelligent ventilation device for coal mines according to claim 1, characterized in that: A control box (16) is fixedly mounted on the main frame (4), a PLC controller (17) and a frequency converter (18) are installed in the control box (16), the frequency converter (18) is connected to the PLC controller (17), the frequency converter (18) is electrically connected to a drive motor of the mine local ventilator (2), and a gas concentration detection sensor (19) is electrically connected to the PLC controller (17).

3. The intelligent ventilation device for coal mines according to claim 1, characterized in that: The main frame (4) comprises four pillars (20), the upper support plate (5) and the lower support plate (6) are both welded to the pillars (20), a cross bar (21) is welded between two laterally arranged pillars (20), and two longitudinal bars (22) are welded between two longitudinally arranged pillars (20).

4. The intelligent ventilation device for coal mines according to claim 3, characterized in that: Two inclined rods (23) are welded to the bottom of the upper support plate (5), and the bottom ends of the inclined rods (23) are welded to the pillars (20).

5. The intelligent ventilation device for coal mines according to claim 4, characterized in that: Two inclined rods (24) are welded to the bottom of the lower support plate (6), and the bottom ends of the inclined rods (24) are welded to the support pillars (20).