An underground mine ventilation structure

Abstract

The utility model discloses an underground mining field ventilation structure, including side pipeline and main pipeline, the both sides symmetry of main pipeline are pasted with side pipeline, and the side wall corner of side pipeline and main pipeline all is equipped with round hole, and the round hole department of side pipeline and main pipeline corresponds, and the round hole department of side pipeline and main pipeline is connected with bolt, and side pipeline is fixedly connected with main pipeline through bolt, and the inner chamber of main pipeline is provided with ventilation structure. The device is applied to the underground ventilation link, through the use of filtering structure and ventilation structure, the function of exhaust and air intake can be realized, and the filtering structure is also arranged in the side pipeline, the filtering structure has the function of detachable, dust affecting the rotation of the paddle is avoided, and the filtering structure can be detached for regular maintenance, a plurality of sets of the device can be arranged in the underground multi-section section, and the ordinary pipeline with the same round hole of the device is connected in sequence, the flexibility during use is also improved, sufficient oxygen supply is ensured, and the working environment is improved.

Description

Technical Field

[0001] This utility model relates to the field of underground mining technology, specifically to a ventilation structure for underground mining sites. Background Technology

[0002] Underground mining is the operation of extracting mineral resources below the Earth's surface, and it is an important means for humans to obtain metallic and non-metallic mineral resources. Its development is closely linked to human demand for mineral resources and the advancement of mining technology. Modern underground mining technology encompasses various methods, including open-cut mining, backfilling mining, and caving mining. These methods are selected based on factors such as the occurrence conditions of the ore body and the physical and mechanical properties of the ore and surrounding rock.

[0003] Ventilation is crucial in underground mining. Because the underground space is relatively enclosed, poor ventilation leads to a gradual decrease in oxygen levels. Miners are prone to fatigue, dizziness, and weakness. Furthermore, underground mining generates large amounts of dust, such as coal dust and rock dust, which severely impairs respiratory function. Utility Model Content

[0004] The purpose of this invention is to provide a ventilation structure for underground mining operations to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a ventilation structure for an underground mining site, comprising side pipes and a main pipe, with side pipes symmetrically attached to both sides of the main pipe, and round holes provided at the corners of the side walls of both the side pipes and the main pipe, with the round holes of the side pipes and the main pipes corresponding to each other, bolts being fitted into the round holes of the side pipes and the main pipes, and the side pipes being fixedly connected to the main pipes by bolts, and a ventilation structure being provided in the inner cavity of the main pipe.

[0006] Preferably, the ventilation structure includes two central blocks arranged symmetrically. Each central block has a cylindrical center with square rod-shaped extensions at both ends. The square rod-shaped extensions of the central block are fixedly connected to the inner wall of the main duct. An inner block is fixedly connected to the center of each central block. A circular grooved column is fitted into the inner cavity of the inner block. The outer wall of the circular grooved column has symmetrically formed annular grooves. Ball bearings are rotatably connected between the annular grooves of the circular grooved column and the inner wall of the inner block. Blades are fixedly connected to the inner ends of the two circular grooved columns. A driven bevel gear is fixedly connected to the other end of the center of each blade. The main... A base box is fixedly connected to the center of the lower surface of the pipe, and the lower surface of the base box is open. A fastening box is fastened to the bottom of the base box. The side walls of the fastening box are provided with second screws and are fixedly connected to the base box by the second screws. A motor frame is fixedly connected to the inner wall of the fastening box. A servo motor is symmetrically fixedly connected to the inner cavity of the motor frame. A rotating shaft is installed at the center of the upper surface of the servo motor and is rotatably connected. The side wall of the rotating shaft penetrates the bottom of the main pipe and is clearance-fitted. A driving bevel gear is fixedly connected to the top of the rotating shaft. The side wall of the driving bevel gear meshes with the side wall of the driven bevel gear.

[0007] Preferably, it also includes a filter structure, which is inserted into the inner wall of the side pipe.

[0008] Preferably, the filter structure includes a screw hole block, which is fixedly connected to the center of the lower surface of the side pipe. The screw hole block has symmetrically opened screw holes in its inner cavity. A concave rod is provided on the lower surface of the screw hole block, and a first screw is symmetrically sleeved on the lower surface of the concave rod. The top of the first screw is threadedly connected to the screw hole of the screw hole block. Square frames are symmetrically fixedly connected to both ends of the concave rod, and the square frames are set on the inner wall of the side pipe. A filter screen is provided at the center of the square frame, and frame borders are symmetrically provided on both sides of the square frame. The outer corners of the frame borders are fixedly connected to the inner wall of the side pipe.

[0009] Preferably, the upper surfaces of the side pipe and the main pipe are symmetrically provided with support structures, and the number of support structures is six, with two structures per group, and they are evenly distributed on the upper surfaces of the side pipe and the main pipe.

[0010] Preferably, the support structure includes a circular hole block, the lower surface of which is fixedly connected to the upper surface of the side pipe and the main pipe, a circular rod is inserted into the inner cavity of the circular hole block, and concave frames are fixedly connected to both ends of the circular rod. Circular holes are evenly opened on the upper surface of the concave frames.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This device is applied to the underground ventilation process. By using a filtration structure and a ventilation structure, a ventilation structure is set inside the main pipe. Through the meshing of bevel gears and the drive of a servo motor, its rotation function is realized, achieving effective ventilation. It can deliver fresh air from the ground to various working locations underground. At the same time, the forward and reverse rotation function of the servo motor can realize the functions of air extraction and air intake. Moreover, a filtration structure is set in the side pipe. The filtration structure is detachable to prevent dust from affecting the rotation of the blades. It can also be disassembled for regular maintenance. Multiple sets of this device can be set in multiple sections underground and connected to each other through ordinary pipes with the same round holes as this device, which also improves the flexibility of use, ensures sufficient oxygen supply, and improves the working environment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 for Figure 1 Structural cross-sectional view of the middle side pipe and the main pipe;

[0014] Figure 3 for Figure 2 Detailed structural diagram of the central ventilation structure;

[0015] Figure 4 for Figure 3 Structural cross-sectional view of the inner block;

[0016] Figure 5 for Figure 3 Detailed structural diagram of the interlocking box;

[0017] Figure 6 for Figure 2 Detailed structural diagram of the filter structure;

[0018] Figure 7 for Figure 6 Detailed structural diagram of the Chinese frame;

[0019] In the diagram: 1. Side pipe; 2. Main pipe; 3. Support structure; 31. Round hole block; 32. Round rod; 33. Concave frame; 4. Filter structure; 41. Frame; 42. Square frame; 43. Filter screen; 44. Concave rod; 45. Screw hole block; 46. First screw; 5. Ventilation structure; 51. Center block; 52. Inner block; 53. Round groove column; 54. Ball bearing; 55. Paddle blade; 56. Driven bevel gear; 57. Base box; 58. Fastening box; 59. Motor frame; 510. Servo motor; 511. Rotating shaft; 512. Driven bevel gear; 513. Second screw; 6. Bolt. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-7 This utility model provides a technical solution: a ventilation structure for an underground mining site, including a side pipe 1 and a main pipe 2. The side pipes 1 are symmetrically attached to both sides of the main pipe 2. Circular holes are opened at the corners of the side walls of the side pipes 1 and the main pipe 2, and the circular holes of the side pipes 1 and the main pipe 2 correspond to each other. Bolts 6 are sleeved at the circular holes of the side pipes 1 and the main pipe 2, and the side pipes 1 are fixedly connected to the main pipe 2 by the bolts 6. A ventilation structure 5 is provided in the inner cavity of the main pipe 2.

[0022] This device is used in underground ventilation. The side pipe 1 and the main pipe 2 are connected by bolts 6. The ventilation structure 5 is set inside the main pipe 2. Through the meshing of bevel gears and the drive of servo motor 510, the rotation function is realized to complete effective ventilation and deliver fresh air from the ground to various working locations underground. At the same time, the forward and reverse rotation function of servo motor 510 can realize the functions of exhaust and intake.

[0023] like Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the ventilation structure 5 includes two central blocks 51 arranged symmetrically. The center of each central block 51 is cylindrical, with square rod-shaped extensions at both ends. These square rod-shaped extensions are fixedly connected to the inner wall of the main duct 2. An inner block 52 is fixedly connected to the center of each central block 51. A circular groove column 53 is fitted into the inner cavity of the inner block 52. Circular grooves are symmetrically formed on the outer wall of the circular groove column 53. Ball bearings 54 are rotatably connected between the circular grooves of the circular groove column 53 and the inner wall of the inner block 52. Blades 55 are fixedly connected to the inner ends of the two circular groove columns 53. The center of each blade 55 is further... A driven bevel gear 56 is fixedly connected to one end. A base box 57 is fixedly connected to the center of the lower surface of the main pipe 2, and the lower surface of the base box 57 is open. A fastening box 58 is fastened to the bottom of the base box 57. Second screws 513 are provided on the side walls of the fastening box 58, and the fastening box 58 is fixedly connected to the base box 57 by the second screws 513. A motor frame 59 is fixedly connected to the inner wall of the fastening box 58. A servo motor 510 is symmetrically fixedly connected to the inner cavity of the motor frame 59. A rotating shaft 511 is installed at the center of the upper surface of the servo motor 510 and is rotatably connected. The side wall of the rotating shaft 511 penetrates the bottom of the main pipe 2 and is intermittent. The top of the rotating shaft 511 is fixedly connected to a drive bevel gear 512 with a clearance fit. The side wall of the drive bevel gear 512 meshes with the side wall of the driven bevel gear 56. The specific use of the ventilation structure 5 is as follows: the ventilation structure 5 consists of two parts, one part is located inside the main pipe 2 and the other part is set externally. A base box 57 is set at the bottom of the main pipe 2. The bottom of the base box 57 is open, and it can be fastened to the snap-fit ​​box 58 by hand. It is then fixed by the second screw 513. A motor frame 59 is set in the snap-fit ​​box 58. A servo motor 510 is symmetrically fixed in the motor frame 59. The use of 8 allows for regular maintenance of the servo motor 510. When the fastening box 58 is assembled, the top shaft 511 of the servo motor 510 will pass through the bottom of the main pipe 2, and at the same time, the active bevel gear 512 will mesh with the driven bevel gear 56 inside the main pipe 2 to provide a power source. A blade 55 is provided on the other side of the driven bevel gear 56. On the other side of the blade 55, the circular groove column 53 is sleeved with the inner cavity of the inner block 52. The outer wall of the circular groove column 53 is provided with an annular groove, and a ball bearing 54 is arranged in an annular manner between the two to increase its rotation function. The inner block 52 is fixed inside the main pipe 2 by the center block 51.

[0024] like Figure 2 , Figure 6 , Figure 7As shown, it also includes a filter structure 4, which is inserted into the inner wall of the side pipe 1. The filter structure 4 is installed in the side pipe 1 to work in conjunction with the ventilation structure 5 to filter and intercept during the ventilation process. The filter structure 4 is detachable to prevent dust from affecting the rotation of the blade 55. Here, dust refers to impurities with a certain volume. At the same time, the filter structure 4 can be disassembled for regular maintenance.

[0025] like Figure 2 , Figure 6 , Figure 7 As shown, the filter structure 4 includes a screw hole block 45, which is fixedly connected to the center of the lower surface of the side pipe 1. The screw hole block 45 has symmetrically opened screw holes in its inner cavity. A concave rod 44 is provided on the lower surface of the screw hole block 45, and a first screw 46 is symmetrically sleeved on the lower surface of the concave rod 44. The top of the first screw 46 is threadedly connected to the screw hole of the screw hole block 45. Square frames 42 are symmetrically fixedly connected to both ends of the concave rod 44, and the square frames 42 are located on the inner wall of the side pipe 1. A filter screen 43 is provided at the center of the square frame 42, and side frames 41 are symmetrically provided on both sides of the square frame 42. The outer corners of the side frames 41 are aligned with the outer corners of the frame 42. The inner wall of the side pipe 1 is fixedly connected. The specific use of the filter structure 4 is as follows: a screw hole block 45 is fixed at the bottom of the side pipe 1, and a square frame 42 is fixed at both ends of the concave rod 44. A filter screen 43 is set at the center of the square frame 42. The square frame 42 is inserted into the inner wall of the side pipe 1, and the bottom concave rod 44 will fit with the screw hole block 45. It is then fixed by the first screw 46. A frame 41 is also set on the inner wall of the side pipe 1 to fit with the square frame 42 to ensure its stable installation. Since the square frame 42 is symmetrically set, it can filter both sides when the air is inlet and outlet, and also improves the filtration effect of double-layer filtration.

[0026] like Figure 1 , Figure 2 As shown, support structures 3 are symmetrically arranged on the upper surfaces of both the side pipe 1 and the main pipe 2. There are six support structures 3 in total, and they are arranged in pairs. They are evenly distributed on the upper surfaces of the side pipe 1 and the main pipe 2. By setting up support structures 3, it is convenient to hoist and install the main pipe 2 and the side pipe 1. At the same time, the multiple support structures 3 also prevent one from becoming loose and affecting the connection.

[0027] like Figure 1 , Figure 2 As shown, the support structure 3 includes a circular hole block 31. The lower surface of the circular hole block 31 is fixedly connected to the upper surface of the side pipe 1 and the main pipe 2. A circular rod 32 is inserted into the inner cavity of the circular hole block 31. A concave frame 33 is fixedly connected to both ends of the circular rod 32. Circular holes are evenly opened on the upper surface of the concave frame 33. The specific use of the support structure 3 is as follows: the circular rod 32 is inserted into the inner cavity of the circular hole block 31, and the concave frame 33 is fixed at both ends of the circular rod 32. A circular hole is opened at the top of the concave frame 33, which can be fixed by chemical anchoring or expansion anchoring.

[0028] Working principle: This device is used in the underground ventilation process. Through the use of filter structure 4 and ventilation structure 5, ventilation structure 5 is set inside the main pipe 2. Through the meshing of bevel gears and the drive of servo motor 510, its rotation function is realized, converting horizontal torque into vertical axial force. When rotating forward, the active bevel gear 513 rotates clockwise, driving the driven bevel gear 56 to rotate, forming a negative pressure to draw in fresh air from the ground; when rotating in reverse, positive pressure is generated to discharge polluted gas, completing effective ventilation and delivering fresh air from the ground to various working locations underground. In addition, filter structure 4 is set in the side pipe 1. The filter structure 4 has a detachable function to prevent dust from affecting the rotation of the blade 55, and can also be disassembled for regular maintenance.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mine ventilation structure underground, characterised in that: Includes a side pipe (1) and a main pipe (2). The side pipes (1) are symmetrically attached to both sides of the main pipe (2). The side walls of the side pipes (1) and the main pipe (2) are provided with round holes, and the round holes of the side pipes (1) and the main pipe (2) correspond to each other. Bolts (6) are fitted into the round holes of the side pipes (1) and the main pipe (2). The side pipes (1) are fixedly connected to the main pipes (2) by bolts (6). The inner cavity of the main pipe (2) is provided with a ventilation structure (5). The ventilation structure (5) includes a central block (51), there are two central blocks (51) arranged symmetrically. The center of the central block (51) is cylindrical and has square rod extensions at both ends. The square rod extensions of the central block (51) are fixedly connected to the inner wall of the main pipe (2). An inner block (52) is fixedly connected to the center of the central block (51). A circular groove column (53) is fitted into the inner cavity of the inner block (52). The outer wall of the circular groove column (53) is symmetrically provided with annular grooves. A ball bearing (54) is rotatably connected between the annular groove of the circular groove column (53) and the inner wall of the inner block (52). A blade (55) is fixedly connected to the inner end of the two circular groove columns (53). A driven bevel gear (56) is fixedly connected to the other end of the center of the blade (55). The center of the lower surface of the main pipe (2) is... A base box (57) is fixedly connected, and the lower surface of the base box (57) is open. A fastening box (58) is fastened to the bottom of the base box (57). The side walls of the fastening box (58) are provided with second screws (513), and are fixedly connected to the base box (57) by the second screws (513). A motor frame (59) is fixedly connected to the inner wall of the fastening box (58). A servo motor (510) is symmetrically fixedly connected to the inner cavity of the motor frame (59). A rotating shaft (511) is installed at the center of the upper surface of the servo motor (510) and is rotatably connected. The side wall of the rotating shaft (511) penetrates the bottom of the main pipe (2) and is clearance-fitted. An active bevel gear (512) is fixedly connected to the top of the rotating shaft (511). The side wall of the active bevel gear (512) meshes with the side wall of the driven bevel gear (56).

2. A mine ventilation structure according to claim 1, characterised in that: It also includes a filter structure (4), which is inserted into the inner wall of the side pipe (1).

3. A mine ventilation structure according to claim 2, wherein: The filter structure (4) includes a screw hole block (45), which is fixedly connected to the center of the lower surface of the side pipe (1). The screw hole block (45) has symmetrical screw holes in its inner cavity. A concave rod (44) is provided on the lower surface of the screw hole block (45), and a first screw (46) is symmetrically sleeved on the lower surface of the concave rod (44). The top of the first screw (46) is threadedly connected to the screw hole of the screw hole block (45). A square frame (42) is symmetrically fixedly connected to both ends of the concave rod (44), and the square frame (42) is provided on the inner wall of the side pipe (1). A filter screen (43) is provided at the center of the square frame (42). A frame (41) is symmetrically provided on both sides of the square frame (42), and the outer corner of the frame (41) is fixedly connected to the inner wall of the side pipe (1).

4. The ventilation structure for underground mining operations according to claim 1, characterized in that: The upper surfaces of the side pipe (1) and the main pipe (2) are symmetrically provided with support structures (3). There are six support structures (3), and they are arranged in pairs, evenly distributed on the upper surfaces of the side pipe (1) and the main pipe (2).

5. A ventilation structure for underground mining operations according to claim 4, characterized in that: The support structure (3) includes a circular hole block (31), the lower surface of which is fixedly connected to the upper surface of the side pipe (1) and the main pipe (2), a circular rod (32) is inserted into the inner cavity of the circular hole block (31), and a concave frame (33) is fixedly connected to both ends of the circular rod (32), and the upper surface of the concave frame (33) is uniformly provided with circular holes.

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