Underground ventilation device for metal mine mining

Abstract

The utility model discloses an underground ventilation device for metal mining, and relates to the technical field of mining ventilation. The device comprises an air inlet pipeline, a ventilation fan, a filter screen and a dust blocking plate are sequentially arranged in the air inlet pipeline, a collecting box is arranged at the bottom of the filter screen, a cleaning mechanism is arranged between the filter screen and the dust blocking plate, a driving belt wheel and a threaded block are sequentially connected to a first screw of the cleaning mechanism, and a driven shaft is rotationally installed on the inner wall of the air inlet pipeline. A driven belt wheel is installed on the driven shaft, a plurality of impact rods are installed on a fixed block connected to the bottom of the driven shaft, and the impact rods impact the impact block when rotating. By means of the mode, the dust blocking plate vibrates, so that dust and solid impurities attached to the dust blocking plate fall off, the phenomenon that the dust blocking plate is blocked is avoided, the ventilation effect of the dust blocking plate is improved, and the breathing efficiency of workers in a mine is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of mine ventilation technology, and in particular to an underground ventilation device for metal mining. Background Technology

[0002] Metal mines generally refer to minerals from which metallic elements can be extracted through smelting. During the mining process, metal mines are formed. When metal mines are mined to a certain depth, the internal air is difficult to circulate, so ventilation devices are needed to ensure the efficiency of metal mine mining.

[0003] In a metal mine underground ventilation device disclosed in CN220415430U, there are mounting frames, mounting components, and ventilation components. The mounting components include mounting pipes, air inlet hoods, dust baffles, filters, cleaning components, and storage components. The mounting pipes are fixedly connected to the mounting frames, the air inlet hoods are connected to the mounting pipes, the dust baffles are fixedly connected to the air inlet hoods, and the filters are fixedly connected to the mounting pipes. By activating the ventilation components, air quickly enters the mounting pipes through the air inlet hoods. Upon entry, the dust baffles block larger dust particles and fixed impurities from the air, which then slide off the inclined inner wall of the air inlet hoods onto the ground. The air then passes through the filters... The existing technology filters fine dust entering the air and activates a cleaning component at intervals to collect the dust from the filter screen into a storage component. This solves the problem of not being able to clean the dust from the filter screen. However, the existing technology has the following drawbacks: In use, the existing technology only cleans the dust from the filter screen by rotating the threaded rod with the help of the threaded sleeve, which in turn drives the cleaning brush to move up and down. However, it cannot clean the dust baffle and the dust collected in the collection box, which can lead to clogging of the dust baffle and affect the ventilation effect. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an underground ventilation device for metal mining, which solves the problem of clogging of the baffle plates caused by the inability to clean the existing underground ventilation devices used in metal mining in real time.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A ventilation system for underground metal mining includes an air intake duct. One end of the air intake duct is connected to the mine's ventilation pipe, and the other end has an air outlet. A ventilation fan, a filter screen, and a dust baffle are sequentially installed inside the air intake duct. A collection box is located at the bottom of the filter screen, and a cleaning mechanism is provided between the filter screen and the dust baffle. The cleaning mechanism includes an adjusting motor and a first screw. The adjusting motor is located at the top of the air intake duct, and its rotating shaft passes through the top of the air intake duct and is connected to one end of the first screw. The other end of the first screw is rotatably connected to the bottom of the collection box. A drive pulley and a threaded block are sequentially connected to the first screw. The drive pulley is fixedly connected to the first screw, and the threaded block is... The first bolt is connected by a threaded connection. A cleaning brush is provided on the side of the threaded block facing the filter screen. The two outer side walls of the cleaning brush are in contact with the inner wall of the air inlet duct. A driven shaft is rotatably installed on the inner wall of the air inlet duct between the first screw and the dust baffle. A driven pulley is installed on the driven shaft. The driven pulley is positioned corresponding to the driving pulley. The driven pulley and the driving pulley are connected by a connecting belt. A fixed block is connected to the bottom of the driven shaft. Several impact rods are evenly installed around the fixed block. The ends of the impact rods are spherical. An impact block is installed on the dust baffle corresponding to the end of the impact rod. The end of the impact rod abuts against the side of the impact block. When the impact rod rotates, it impacts the impact block.

[0007] Furthermore, the collection box is equipped with a cleaning assembly, which includes a driving bevel gear, a driven bevel gear, and a second screw. The driving bevel gear is fixedly mounted on the first screw. One end of the second screw is rotatably connected to the side wall of the collection box, and the other end of the second screw is connected to the driven bevel gear. The driven bevel gear meshes with the driving bevel gear. An adjusting block is fitted on the second screw, and a cleaning plate is installed at the bottom of the adjusting block. The two outer side walls of the cleaning plate are in contact with the inner wall of the collection box, and a dust outlet is provided at the bottom of the collection box.

[0008] Furthermore, the meshing driving bevel gear and driven bevel gear are installed inside the protective frame.

[0009] Furthermore, the bottom of the collection box is equipped with a mounting bracket.

[0010] Furthermore, a support plate is rotatably mounted on the bottom of the driven shaft, and the other end of the support plate is connected to the inner wall of the air inlet duct.

[0011] Furthermore, the external thread pitch of the second screw is smaller than that of the external thread pitch of the first screw.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. By adjusting the motor to drive the first screw to rotate, the active pulley rotates synchronously. Under the action of the connecting belt and the driven pulley, the driven shaft rotates, which in turn causes the impact rod to hit the impact block, causing the dust baffle to vibrate. This causes the dust and solid impurities attached to the dust baffle to fall off, effectively preventing the dust baffle from becoming blocked due to the accumulation of dust and impurities, and significantly improving the ventilation effect.

[0014] 2. The rotation of the first screw drives the active bevel gear to rotate, and the driven bevel gear meshing with the active bevel gear rotates accordingly, thereby driving the second screw to rotate. Since the external thread pitch of the second screw is different from that of the first screw, while the first screw drives the cleaning brush to completely remove the dust from the filter screen, the second screw drives the adjusting block to move from one side to the other side, sweeping the dust in the collection box out of the dust outlet, which makes it convenient for staff to clean the dust in the collection box, ensuring the cleanliness of the entire ventilation device and the smoothness of ventilation.

[0015] 3. This technical solution effectively cleans the dust in the dust baffle and collection box, making up for the shortcomings of the existing technology, comprehensively improving the performance of the underground ventilation device used in metal mining, ensuring that the ventilation device can operate continuously and stably in the complex environment of metal mining, ensuring air circulation inside the mine, providing efficient and reliable ventilation conditions for metal mining operations, and improving the efficiency and safety of metal mining. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the main cross-sectional structure of the protective frame of this utility model;

[0018] Figure 3 This is a top view of the structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the impact mechanism of this utility model.

[0021] In the picture:

[0022] 1. Air inlet duct; 2. Ventilation fan; 3. Filter screen; 4. Cleaning brush; 5. Adjusting motor; 601. Connecting belt; 602. Driven pulley; 603. Impact block; 604. Impact rod; 605. Driving pulley; 606. Support plate; 607. Fixing block; 608. Driven shaft; 7. Dust baffle; 8. First screw; 9. Mounting bracket; 10. Protective frame; 11. Dust outlet; 12. Collection box; 13. Ventilation duct; 14. Cleaning assembly; 1401. Driving bevel gear; 1402. Driven bevel gear; 1403. Cleaning plate; 1404. Adjusting block; 1405. Second screw. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0024] A metal mine underground ventilation device includes an air intake duct 1, one end of which is connected to a mine ventilation pipe 13, and the other end of which has an air outlet. A ventilation fan 2, a filter screen 3, and a dust baffle 7 are sequentially arranged inside the air intake duct 1. A collection box 12 is located at the bottom of the filter screen 3. A cleaning mechanism is provided between the filter screen 3 and the dust baffle 7. The cleaning mechanism includes an adjusting motor 5 and a first screw 8. The adjusting motor 5 is located at the top of the air intake duct 1. The rotating shaft of the adjusting motor 5 passes through the top of the air intake duct 1 and is connected to one end of the first screw 8. The other end of the first screw 8 is rotatably connected to the bottom of the collection box 12. A drive pulley 605 and a threaded block are sequentially connected to the first screw 8. The drive pulley 605 is fixedly connected to the first screw 8. The threaded block is connected to a first bolt via a threaded engagement. A cleaning brush 4 is provided on the side of the threaded block facing the filter screen 3. The two outer sides of the cleaning brush 4... The sidewall is in contact with the inner wall of the air inlet duct 1. The width of the cleaning brush 4 is the same as the width of the air inlet duct 1. The cleaning brush 4 is limited to prevent it from rotating when the first screw 8 rotates. A driven shaft 608 is rotatably installed on the inner wall of the air inlet duct 1 between the first screw 8 and the dust baffle 7. A driven pulley 602 is installed on the driven shaft 608. The driven pulley 602 is positioned opposite to the driving pulley 605. The driven pulley 602 and the driving pulley 605 are connected by a connecting belt 601. A fixing block 607 is connected to the bottom of the driven shaft 608. Several impact rods 604 are evenly installed around the fixed block 607. The ends of the impact rods 604 are spherical. An impact block 603 is installed on the dust baffle 7 at the position corresponding to the ends of the impact rods 604. The ends of the impact rods 604 abut against the side of the impact block 603. When the impact rods 604 rotate, they impact the impact block 603.

[0025] Specifically, such as Figure 1 , Figure 3 and Figure 5 As shown, during use, the starting adjustment motor 5 drives the driving pulley 605 to rotate under the action of the first screw 8, and the driven shaft 608 rotates synchronously under the action of the connecting belt 601 and the driven pulley 602. This causes the impact rod 604 to strike the impact block 603, causing the dust baffle 7 to vibrate. The vibration of the dust baffle 7 causes the dust and solid impurities attached to the dust baffle 7 to fall off, thereby preventing the dust baffle 7 from being blocked by dust and impurities, and thus improving its ventilation effect.

[0026] The collection box 12 is equipped with a cleaning assembly 14, which includes a driving bevel gear 1401, a driven bevel gear 1402, and a second screw 1405. The driving bevel gear 1401 is fixedly mounted on the first screw 8. One end of the second screw 1405 is rotatably connected to the side wall of the collection box 12, and the other end of the second screw 1405 is connected to the driven bevel gear 1402. The driven bevel gear 1402 meshes with the driving bevel gear 1401. An adjusting block 1404 is fitted on the second screw 1405. A cleaning plate 1403 is installed at the bottom of the adjusting block 1404. The two outer side walls of the cleaning plate 1403 are in contact with the inner wall of the collection box 12. The width of the cleaning plate 1403 is the same as the width of the collection box 12, which limits the movement of the cleaning plate 1403 to prevent it from rotating when the second screw 1405 rotates. A dust outlet 11 is provided at the bottom of the collection box 12.

[0027] The meshing drive bevel gear 1401 and driven bevel gear 1402 are installed inside the protective frame 10.

[0028] The bottom of the collection box 12 is provided with a mounting bracket 9.

[0029] A support plate 606 is rotatably mounted on the bottom of the driven shaft 608, and the other end of the support plate 606 is connected to the inner wall of the air inlet duct 1.

[0030] The external thread pitch of the second screw 1405 is less than the external thread pitch of the first screw 8.

[0031] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, during use, because the pitch of the outer threads of the second screw 1405 and the first screw 8 is different, the first screw 8 rotates while driving the cleaning brush 4 to move a large distance, while the second screw 1405 rotates while driving the adjusting block 1404 to move a small distance. This ensures that when the cleaning brush 4 has completely removed the dust from the filter screen 3, the adjusting block 1404 moves from one side of the second screw 1405 to the other side, thereby sweeping the dust in the collection box 12 out of the dust outlet 11, making it convenient for staff to clean the dust in a concentrated manner.

[0032] Working Principle: In use, this utility model firstly starts the regulating motor 5, which drives the first screw 8 to rotate. Simultaneously, the first screw 8 rotates, driving the driving pulley 605 to rotate synchronously, which in turn drives the connecting belt 601 to rotate synchronously, which in turn drives the driven pulley 602 to rotate. Simultaneously, the driven pulley 602 rotates, driving the driven shaft 608 to rotate synchronously. Under the action of the fixing block 607, the impact rod 604 rotates, impacting the impact block 603, causing the dust baffle 7 to vibrate. This vibration transmits the force of the vibration to the dust and solid impurities adhering to the dust baffle 7, causing them to fall off. This process ensures the normal operation of the dust baffle 7, thereby improving ventilation.

[0033] Then, by starting the regulating motor 5, the first screw 8 is driven to rotate, which in turn drives the cleaning brush 4 to descend, thereby cleaning the dust attached to the filter screen 3. At the same time, the rotation of the first screw 8 drives the active bevel gear 1401 to rotate. Since the active bevel gear 1401 and the driven bevel gear 1402 mesh with each other, the rotation of the active bevel gear 1401 drives the driven bevel gear 1402 to rotate synchronously, which in turn drives the second screw 1405 to rotate synchronously. At the same time, the rotation of the second screw 1405 drives the regulating block 1404 to move horizontally, which in turn drives the cleaning plate 1403 to move horizontally synchronously. As the cleaning plate 1403 moves horizontally, it sweeps the dust that has fallen into the collection box 12 to the dust outlet 11. The above operation facilitates the collection of the cleaned dust, making it easier for staff to clean, thereby improving cleaning efficiency.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ventilation device for underground metal mining, comprising an air intake pipe (1), one end of which is connected to a ventilation pipe (13) in the mine, and the other end of which is provided with an air outlet. A ventilation fan (2), a filter screen (3), and a dust baffle plate (7) are sequentially arranged inside the air intake pipe (1), characterized in that: A collection box (12) is provided at the bottom of the filter screen (3). A cleaning mechanism is provided between the filter screen (3) and the dust baffle (7). The cleaning mechanism includes an adjusting motor (5) and a first screw (8). The adjusting motor (5) is located at the top of the air inlet duct (1). The rotating main shaft of the adjusting motor (5) passes through the top of the air inlet duct (1) and is connected to one end of the first screw (8). The other end of the first screw (8) is rotatably connected to the bottom of the collection box (12). A drive pulley (605) and a threaded block are connected in sequence on the first screw (8). The drive pulley (605) is fixedly connected to the first screw (8). The threaded block is connected to the first bolt through a threaded engagement. A cleaning brush (4) is provided on the side of the threaded block facing the filter screen (3). The two outer walls of the cleaning brush (4) are in contact with the inner wall of the air inlet duct (1). (1) A driven shaft (608) is rotatably installed on the inner wall between the first screw (8) and the dust baffle (7). A driven pulley (602) is installed on the driven shaft (608). The driven pulley (602) is positioned opposite to the driving pulley (605). The driven pulley (602) and the driving pulley (605) are connected by a connecting belt (601). A fixed block (607) is connected to the bottom of the driven shaft (608). Several impact rods (604) are evenly installed around the fixed block (607). The end of the impact rod (604) is spherical. An impact block (603) is installed on the dust baffle (7) at the position corresponding to the end of the impact rod (604). The end of the impact rod (604) abuts against the side of the impact block (603). When the impact rod (604) rotates, it impacts the impact block (603).

2. The underground ventilation device for metal mining according to claim 1, characterized in that: The collection box (12) is equipped with a cleaning assembly (14). The cleaning assembly (14) includes a driving bevel gear (1401), a driven bevel gear (1402), and a second screw (1405). The driving bevel gear (1401) is fixedly installed on the first screw (8). One end of the second screw (1405) is rotatably connected to the side wall of the collection box (12), and the other end of the second screw (1405) is connected to the driven bevel gear (1402). The driven bevel gear (1402) and the driving bevel gear (1401) mesh with each other. An adjusting block (1404) is fitted on the second screw (1405). A cleaning plate (1403) is installed at the bottom of the adjusting block (1404). The two outer side walls of the cleaning plate (1403) are in contact with the inner wall of the collection box (12). A dust outlet (11) is opened at the bottom of the collection box (12).

3. A metal mine underground ventilation device according to claim 2, characterized in that: The meshing drive bevel gear (1401) and driven bevel gear (1402) are installed inside the protective frame (10).

4. A metal mine underground ventilation device according to claim 3, characterized in that: The bottom of the collection box (12) is provided with a mounting bracket (9).

5. A metal mine underground ventilation device according to claim 4, characterized in that: A support plate (606) is rotatably mounted on the bottom of the driven shaft (608), and the other end of the support plate (606) is connected to the inner wall of the air inlet duct (1).

6. A metal mine underground ventilation device according to claim 5, characterized in that: The external thread pitch of the second screw (1405) is less than the external thread pitch of the first screw (8).

Images