Mine ventilation air volume adjusting mechanism
By designing a mine ventilation air volume adjustment mechanism, using fans and dustproof nets to adjust ventilation in the absence of wind or low wind speed, the problem of insufficient ventilation in the existing system when the wind is low is solved, efficient and environmentally friendly ventilation adjustment is achieved, and simplified The equipment cleaning process.
Patent Information
- Application Number
- CN202420974238.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-05-08
AI Technical Summary
The existing mine ventilation system cannot achieve rapid ventilation under small wind pressure, cannot effectively adjust ventilation, and the materials used for wooden board assembly windows are costly and not environmentally friendly, so the air volume cannot be adjusted accurately.
A mine ventilation air volume adjustment mechanism is designed, including door frame, rectangular box, electronic air meter, fan, dustproof net and air outlet duct. The external air is sucked in through the fan and vented through the air outlet duct. The dustproof net filters the dust and air outlet door Adjustable to suit different wind speeds and provides a convenient cleaning mechanism.
The ventilation volume can be effectively adjusted in the absence of wind or low wind speed, the dustproof net effectively filters dust, avoids internal pollution, and the structure is simple and easy to clean, achieving efficient ventilation and adjustment under different wind conditions.
Smart Images
Figure CN222162678U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mine ventilation, in particular to a mine ventilation air volume regulating mechanism. Background Art
[0002] The mine ventilation system is an important part of the mine production system. Its rationality has an important long-term impact on the safe production of the mine. In coal mining, the residual ventilation resistance in the mine will waste energy. In order to ensure safe production and reduce production costs, this dynamic system should always maintain the best state. In mine operations, coal mine ventilation safety is an important factor in ensuring the overall safety of the mine, and coal mine gas, coal dust, and fire are the main factors affecting the safe production of mines. In the underground mine ventilation system, the ventilation volume requirements of some mine tunnels are relatively high, and the ventilation volume is required to be accurately controlled, which requires a wind window that can finely adjust the air volume. The existing wind windows are generally assembled with wooden boards, and the ventilation volume is adjusted by disassembling several wooden boards. Not only is the material cost too high and not environmentally friendly, but it is also impossible to meet the requirements of accurately adjusting the air volume. After searching, the patent document with the publication (announcement) number: CN112412520A provides an automatic sensing mine ventilation air volume adjustment mechanism, including a controller and two dampers arranged in the mine, which are of the same shape and size and open and close opposite to each other. The gaps on both sides of the two dampers facing each other surround a vent. An opening and closing device is also connected between the dampers and the mine wall. The opening and closing device is installed with a controller. An electronic wind meter is installed at the vent. The electronic wind meter, the controller and the control end of the opening and closing device are electrically connected in series in sequence. The wind speed information passing through the vent is measured by the electronic wind meter, and then the opening of the damper is calculated according to the wind speed, the size of the vent diameter and the air volume required by the user, so as to achieve the purpose of accurately adjusting the ventilation air volume, and the air volume adjustment has a high degree of automation.
[0003] Existing mine ventilation achieves ventilation size by monitoring air volume and then controlling the opening and closing distance of the damper. This method is only applicable when the wind is strong. If the wind is weak, it cannot achieve the purpose of rapid ventilation. Utility Model Content
[0004] The utility model aims to solve the problem that the existing mine ventilation realizes the ventilation size by monitoring the air volume and then controlling the opening and closing spacing of the air door. This method can only be applied when the wind force is relatively strong. If the wind force is relatively weak, the purpose of rapid ventilation cannot be achieved. A mine ventilation air volume regulating mechanism is proposed to solve the problem that the existing mine ventilation realizes the ventilation size by monitoring the air volume and then controlling the opening and closing spacing of the air door. This method can only be applied when the wind force is relatively strong. If the wind force is relatively weak, the purpose of rapid ventilation cannot be achieved.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A mine ventilation air volume adjustment mechanism comprises a door frame, two air doors are rotatably installed on the inner side of the door frame, a rectangular box is arranged on the inner side of the door frame, an electronic wind meter is arranged on the outer side of the rectangular box, an air inlet is opened on the rear side of the rectangular box, a plurality of air outlet pipes are arranged on the outer side of the rectangular box, a fan is arranged in the rectangular box, the number of fans is multiple, a mounting hole is opened on the bottom of the rectangular box, a filter plate is installed in the mounting hole, the filter plate is a rectangular frame structure, and a dustproof net is arranged on the filter plate; the dustproof net can filter external dust to avoid internal pollution of the rectangular box.
[0007] Preferably, two limiting plates are fixedly mounted on the top inner wall of the rectangular box, and the filter plate is located between the limiting plates and the inner wall of the rectangular box; the limiting plates are used to limit the filter plate.
[0008] Preferably, a rectangular bar is fixedly installed at the bottom of the filter plate, two installation grooves are opened on the top of the rectangular bar, two elastic rods are fixedly installed at the bottom of the rectangular box, the two elastic rods are movably connected to the two installation grooves, and a handle is fixedly installed at the bottom of the rectangular bar; the provided handle facilitates the installation of the rectangular bar.
[0009] Preferably, a trapezoidal block is fixedly installed on the outer side of the elastic rod, a trapezoidal groove is opened on the inner wall of the installation groove, and the trapezoidal block is clamped with the trapezoidal groove; the elastic rod provides elastic force for the trapezoidal block, so that the trapezoidal block enters the trapezoidal groove, and the rectangular bar can be fixed.
[0010] Preferably, two positioning grooves are provided on the top of the rectangular strip, and two positioning rods are fixedly installed on the bottom of the rectangular box, and the two positioning rods are movably connected to the two positioning grooves; the positioning rods are inserted into the positioning grooves to position the rectangular strip.
[0011] In the utility model, the beneficial effects of the mine ventilation air volume adjustment mechanism are as follows:
[0012] In this scheme, the two dampers can be opened to adjust the ventilation air volume. When there is no wind or the wind speed is low, the fan works to draw the outside air into the rectangular box. The dustproof net can filter the dust from the outside to avoid internal pollution of the rectangular box. The multiple air outlet pipes can guide the ventilation and change the ventilation volume when there is no wind or the wind speed is low.
[0013] As the use time of this solution increases, dust will adhere to the outside of the dust net or become clogged, and the dust net needs to be disassembled and cleaned. The rectangular bar is pulled by the handle, and the rectangular bar drives the filter plate to move, and the filter plate drives the dust net to leave the rectangular box, which is convenient for cleaning the dust net;
[0014] The utility model has a simple structure and can change the ventilation volume when there is no wind or the wind speed is low. The arranged dustproof net can filter the external dust to avoid internal pollution of the rectangular box, and the dustproof net is convenient to disassemble and clean. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a structural schematic diagram of a mine ventilation air volume adjustment mechanism proposed by the utility model;
[0016] Figure 2 This is a schematic cross-sectional view of the rectangular box proposed by the utility model;
[0017] Figure 3 This is a three-dimensional structural schematic diagram of the filter plate and dustproof net proposed in the utility model;
[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the rectangular bar and two positioning rods proposed by the utility model.
[0019] In the figure: 1. door frame; 2. air door; 3. rectangular box; 4. electronic wind meter; 5. air outlet duct; 6. handle; 7. fan; 8. air inlet; 9. limit plate; 10. mother shell; 11. U-shaped part; 12. filter plate; 13. dust net; 14. mounting hole; 15. rectangular bar; 16. mounting slot; 17. elastic rod; 18. trapezoidal block; 19. trapezoidal slot; 20. positioning rod; 21. positioning slot. DETAILED DESCRIPTION
[0020] The technical solution of this embodiment will be clearly and completely described below in conjunction with the drawings in this embodiment. Obviously, the described embodiment is only a part of this embodiment, rather than all of the embodiments.
[0021] Embodiment 1
[0022] Reference Figure 1-Figure 4 A mine ventilation air volume adjustment mechanism comprises a door frame 1, two dampers 2 are rotatably installed on the inner side of the door frame 1, a rectangular box 3 is arranged on the inner side of the door frame 1, an electronic wind meter 4 is arranged on the outer side of the rectangular box 3, an air inlet 8 is opened on the rear side of the rectangular box 3, a plurality of air outlet pipes 5 are arranged on the outer side of the rectangular box 3, a fan 7 is arranged in the rectangular box 3, and there are multiple fans 7. A mounting hole 14 is opened at the bottom of the rectangular box 3, a filter plate 12 is installed in the mounting hole 14, the filter plate 12 is a rectangular frame structure, and a dustproof net 13 is arranged on the filter plate 12; the dustproof net 13 can filter the external dust to avoid internal pollution of the rectangular box 3.
[0023] In this embodiment, two limiting plates 9 are fixedly mounted on the top inner wall of the rectangular box 3 , and the filter plate 12 is located between the limiting plates 9 and the inner wall of the rectangular box 3 ; the limiting plates 9 are used to limit the filter plate 12 .
[0024] In this embodiment, a rectangular strip 15 is fixedly installed at the bottom of the filter plate 12, and two mounting grooves 16 are provided at the top of the rectangular strip 15. Two elastic rods 17 are fixedly installed at the bottom of the rectangular box 3, and the two elastic rods 17 are movably connected to the two mounting grooves 16. A handle 6 is fixedly installed at the bottom of the rectangular strip 15; the handle 6 is provided to facilitate the installation of the rectangular strip 15.
[0025] In this embodiment, a trapezoidal block 18 is fixedly installed on the outer side of the elastic rod 17, and a trapezoidal groove 19 is opened on the inner wall of the mounting groove 16, and the trapezoidal block 18 is snap-fitted with the trapezoidal groove 19; the elastic rod 17 provides elastic force for the trapezoidal block 18, so that the trapezoidal block 18 enters the trapezoidal groove 19, and the rectangular bar 15 can be fixed.
[0026] In this embodiment, two positioning grooves 21 are provided on the top of the rectangular strip 15, and two positioning rods 20 are fixedly installed on the bottom of the rectangular box 3. The two positioning rods 20 are movably connected to the two positioning grooves 21; the positioning rods 20 are inserted into the positioning grooves 21 to position the rectangular strip 15.
[0027] Working principle: when in use, the power supply and PLC controller can be turned on to control the electrical appliances. The prior art will not be described in detail here. The two dampers 2 can be opened to adjust the ventilation air volume. When there is no wind or the wind speed is low, the fan 7 works to suck the outside air into the rectangular box 3. The dust-proof net 13 set can filter the dust from the outside to avoid internal pollution of the rectangular box 3. The multiple air outlet pipes 5 set can be used for ventilation guidance, and the ventilation volume can be changed when there is no wind or the wind speed is low. As the use time increases, dust or blockage will adhere to the outside of the dust-proof net 13, and the dust-proof net 13 needs to be disassembled and cleaned. The rectangular bar 15 is pulled by the handle 6, and the rectangular bar 15 drives the filter plate 12 to move, and the filter plate 12 drives the dust-proof net 13 to leave the rectangular box 3, which is convenient for cleaning the dust-proof net 13. When reinstalling, the positioning rod 20 is inserted into the corresponding positioning groove 21, and the elastic rod 17 provides elastic force for the trapezoidal block 18, so that the trapezoidal block 18 enters the trapezoidal groove 19, and the rectangular bar 15 can be fixed.
[0028] Embodiment 2
[0029] The difference between Example 2 and Example 1 is that two mother shell parts 10 are fixedly installed on the inner side of the rectangular box 3, and two U-shaped parts 11 are fixedly installed on the top edge of the door frame 1. The two U-shaped parts 11 cooperate with the two mother shell parts 10 to facilitate the disassembly and assembly of the rectangular box 3. This application includes all the structural shapes, sizes and materials of Example 1. In order to meet the specific usage conditions, they can be selected and adjusted. The accompanying drawings are all schematic structural diagrams, and the specific actual sizes can be appropriately adjusted.
[0030] The above is only a preferred specific implementation of this embodiment, but the protection scope of this embodiment is not limited to this. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of this embodiment within the technical scope disclosed in this embodiment, which should be covered by the protection scope of this embodiment.
Claims
1. A mine ventilation air volume adjustment mechanism, comprising a door frame (1), two air doors (2) are rotatably mounted on the inner side of the door frame (1), a rectangular box (3) is arranged on the inner side of the door frame (1), and an electronic wind meter (4) is arranged on the outer side of the rectangular box (3), It is characterized in that An air inlet (8) is provided on the rear side of the rectangular box (3), a plurality of air outlet pipes (5) are provided on the outer side of the rectangular box (3), a fan (7) is provided inside the rectangular box (3), and a plurality of fans (7) are provided. A mounting hole (14) is provided on the bottom of the rectangular box (3), a filter plate (12) is installed in the mounting hole (14), the filter plate (12) is a rectangular frame structure, and a dustproof net (13) is provided on the filter plate (12).
2. A mine ventilation air volume adjustment mechanism according to claim 1, It is characterized in that Two limiting plates (9) are fixedly mounted on the top inner wall of the rectangular box (3), and the filter plate (12) is located between the limiting plates (9) and the inner wall of the rectangular box (3).
3. A mine ventilation air volume adjustment mechanism according to claim 1, It is characterized in that A rectangular strip (15) is fixedly mounted on the bottom of the filter plate (12), two mounting grooves (16) are provided on the top of the rectangular strip (15), and two elastic rods (17) are fixedly mounted on the bottom of the rectangular box (3), and the two elastic rods (17) are movably connected to the two mounting grooves (16).
4. A mine ventilation air volume adjustment mechanism according to claim 3, It is characterized in that A trapezoidal block (18) is fixedly mounted on the outer side of the elastic rod (17), a trapezoidal groove (19) is provided on the inner wall of the mounting groove (16), and the trapezoidal block (18) is clamped with the trapezoidal groove (19).
5. A mine ventilation air volume adjustment mechanism according to claim 3, It is characterized in that Two positioning grooves (21) are formed on the top of the rectangular strip (15), and two positioning rods (20) are fixedly mounted on the bottom of the rectangular box (3), and the two positioning rods (20) are movably connected to the two positioning grooves (21).
6. A mine ventilation air volume regulating mechanism according to claim 3, It is characterized in that A handle (6) is fixedly mounted on the bottom of the rectangular strip (15).