Underground drilling mine dust extraction device

Abstract

The invention relates to the technical field of extraction devices, in particular to an underground drilling mine dust extraction device. The problems that in mining underground drilling operation, a large amount of mine dust generated by friction between a drill bit and ore is scattered and flies all around, operation visibility is reduced, operation risks are increased, health of miners is harmed, even dust explosion is possibly caused, and safety and economic benefits of mine enterprises are threatened are mainly solved. According to the technical scheme, the device comprises a protective cover with an opening in one side; the concentrating block is arranged on the inner wall of the protective cover, and the outer side of the protective cover is fixedly connected with a discharging pipe communicated with the protective cover; the collecting bag is arranged on the outer ring of the discharging pipe in a sleeving mode and used for collecting broken stone particles generated during drilling; and the locking mechanism is mounted at one end, far away from the protective cover, of the discharge pipe. The mine dust extraction efficiency and the scrap collection rate are improved, the operation risk is reduced, the health of miners is guaranteed, dust explosion is avoided, meanwhile, the installation and maintenance convenience is improved, and the operation and maintenance cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of extraction devices, and in particular to an underground drilling dust extraction device. Background Art

[0002] In mining operations, underground drilling is a key basic operation, and its efficiency and safety directly affect the overall mining progress and quality of the mine. However, during the underground drilling process, the high-speed friction between the drill bit and the ore will generate a large amount of mine dust, which will quickly scatter in the underground space. Mine dust will not only reduce the visibility of the underground working environment, seriously affect the workers' line of sight, and increase the risk of work, but will also be inhaled into the body by the workers. Long-term exposure can easily cause serious occupational diseases such as pneumoconiosis, posing a great threat to the health of miners. At the same time, the presence of a large amount of mine dust may also cause serious safety accidents such as dust explosions, causing huge economic losses and safety hazards to mining companies. In view of this, the present invention proposes an underground drilling mine dust extraction device. Summary of the Invention

[0003] The purpose of the present invention is to propose an underground drilling dust extraction device to address the problem in the background technology that during underground drilling operations in mines, a large amount of mine dust generated by the friction between the drill bit and the ore is scattered everywhere, which not only reduces the visibility of the operation and increases the operation risk, but also endangers the health of the miners and may even cause dust explosions, threatening the safety and economic benefits of mining enterprises.

[0004] The technical solution of the present invention is as follows: an underground drilling dust extraction device, comprising a protective cover with an opening on one side; a focusing block arranged on the inner wall of the protective cover, and a discharge pipe connected to the outer side of the protective cover is fixedly connected; a collecting bag sleeved on the outer ring of the discharge pipe, and the collecting bag is used to collect gravel particles generated during drilling; a locking mechanism installed on the end of the discharge pipe away from the protective cover, and the locking mechanism is used to fix the opening of the collecting bag; a clamping assembly, and the clamping assembly is used to fix the bottom of the collecting bag; a fixing pipe arranged on the outer ring of the protective cover, and the fixing pipe is connected to the inside of the protective cover for extracting mining dust; a fixing mechanism located on one side of the opening of the protective cover.

[0005] Optionally, a through hole is formed on a side of the protective cover away from the opening.

[0006] Optionally, a plurality of groups of air holes corresponding to the positions of the fixed pipes are provided on a side of the protective cover away from the fixed pipes.

[0007] Optionally, the locking mechanism includes a fixing ring fixedly connected to the outer ring of the discharge pipe, the collecting bag opening is sleeved on the outer ring of the fixing ring, a pressure ring is provided on the outside of the fixing ring, an adjustment ring is fixedly connected to the top of the pressure ring, and the adjustment ring is threadedly connected to the discharge pipe.

[0008] Optionally, the clamping assembly includes a mounting ring arranged on the outer ring of the collecting bag, and a plurality of sets of fixing plates are fixedly connected between the mounting ring and the adjusting ring.

[0009] Optionally, the clamping assembly also includes multiple groups of clamping plates arranged below the mounting ring, the clamping plates are rotatably connected to a first rotating shaft, both ends of the first rotating shaft are fixedly connected to a positioning seat, multiple groups of the positioning seats are fixedly connected to the bottom of the mounting ring, the end of the clamping plate away from the collecting bag is rotatably connected to a second rotating shaft, both ends of the second rotating shaft are fixedly connected to a connecting plate, the two groups of connecting plates are commonly fixedly connected to a third rotating shaft at one end away from the second rotating shaft, a movable plate is rotatably connected to the third rotating shaft, multiple groups of the movable plates are commonly fixedly connected to a movable ring, and the movable ring is slidably connected to the mounting ring and the outer rings of multiple groups of fixed plates.

[0010] Optionally, the outer ring of the movable ring is fixedly connected with multiple groups of first connecting blocks, the first connecting blocks are slidably connected with bolts, the bolts are slidably connected with second connecting blocks, and the multiple groups of second connecting blocks are fixedly connected to the mounting ring.

[0011] Optionally, a gasket and a spring sleeved on the outer ring of the bolt are provided on the side of the second connecting block away from the first connecting block. The spring is provided between the second connecting block and the gasket, and a nut is threadedly connected to the bolt.

[0012] Optionally, a quick connector is installed at one end of the fixed pipe away from the protective cover, and the fixed pipe is connected to the pipeline through the quick connector, and is connected to the fan input end and the filter device through the pipeline.

[0013] Optionally, the fixing mechanism includes a mounting tube rotatably connected to the outer ring of the protective cover via a bearing, a mounting plate is fixedly connected to one side of the mounting tube, and a plurality of fixing ears are provided on the outer side of the mounting plate.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] The present invention forms a closed working space through the protective cover and the through hole, which limits the spread of mine dust from the source. The guiding design of the central block and the discharge pipe allows the debris particles to be directly discharged into the collection bag. At the same time, the fixed pipe forms a negative pressure extraction system with the fan through the air hole. The mine dust is intercepted and recovered by the bag filter device, which effectively solves the problem of incomplete extraction and scattered debris of traditional devices.

[0016] Furthermore, the clamping assembly realizes the quick loading and unloading of the collection bag through the mechanical structure of the spring and nut. The locking mechanism and the clamping assembly double-fix the collection bag to avoid dust leakage and device damage.

[0017] In summary, the present invention improves the efficiency of mine dust extraction and the debris collection rate, reduces operational risks, protects the health of miners, and avoids dust explosions, while improving the convenience of installation and maintenance and reducing operation and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of an underground drilling dust extraction device is provided;

[0019] Figure 2 yes Figure 1 Schematic diagram of the cross-section structure Figure 1 ;

[0020] Figure 3 yes Figure 1 Schematic diagram of the cross-section structure Figure 2 ;

[0021] Figure 4 yes Figure 2 A magnified schematic diagram of point A in the middle;

[0022] Figure 5 yes Figure 3 A magnified schematic diagram of point B in the middle;

[0023] Figure 6 yes Figure 1 Enlarged schematic diagram of point C in the middle;

[0024] Figure 7 is a schematic diagram of the state in which the first rotating shaft clamps the bottom of the collection bag;

[0025] Figure 8 yes Figure 7 Schematic diagram of the cross-section structure.

[0026] Reference numerals:

[0027] 1. Protective cover; 11. Through hole; 12. Air hole;

[0028] 2. Concentrating block; 3. Discharge pipe; 4. Collection bag; 5. Locking mechanism; 51. Fixing ring; 52. Pressing ring; 53. Adjusting ring;

[0029] 6. Clamping assembly; 61. Mounting ring; 62. Fixing plate; 63. Clamping plate; 64. First rotating shaft; 65. Positioning seat; 66. Second rotating shaft; 67. Connecting plate; 68. Third rotating shaft; 69. Moving plate; 610. Moving ring; 611. First connecting block; 612. Bolt; 613. Second connecting block; 614. Washer; 615. Spring; 616. Nut;

[0030] 7. Fixing tube; 8. Quick connector; 9. Fixing mechanism; 91. Mounting tube; 92. Mounting plate; 93. Fixing ear. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention.

[0033] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0036] Example

[0037] like Figure 1 As shown, the present invention proposes an underground drilling dust extraction device, which includes a protective cover 1 with an opening on one side. The protective cover 1 is provided with a through hole 11 on the side away from the opening, so that the drill bit can pass through the protective cover 1 for drilling operations, effectively isolating the drilling operation area from the outside world and reducing the scope of mine dust diffusion.

[0038] For further information, see Figure 2 and Figure 3The above-mentioned extraction device includes a concentrating block 2 arranged on the inner wall of the protective cover 1, and a discharge pipe 3 connected to the outside of the protective cover 1 is fixedly connected. Through the guiding effect of the concentrating block 2, some debris particles generated during drilling are concentrated and discharged through the discharge pipe 3, avoiding the accumulation of debris affecting the efficiency of mine dust extraction.

[0039] Furthermore, the extraction device includes a collecting bag 4 sleeved on the outer ring of the discharge pipe 3, and the collecting bag 4 is used to collect gravel particles generated during drilling, so as to facilitate centralized processing and prevent the gravel particles from scattering and causing secondary pollution.

[0040] Specifically, such as Figure 4 As shown, the extraction device includes a locking mechanism 5 installed at the end of the discharge pipe 3 away from the protective cover 1. The locking mechanism 5 is used to fix the opening of the collection bag 4. The locking mechanism 5 includes a fixed ring 51 fixedly connected to the outer ring of the discharge pipe 3. The opening of the collection bag 4 is sleeved on the outer ring of the fixed ring 51. A pressure ring 52 is provided on the outside of the fixed ring 51. An adjustment ring 53 is fixedly connected to the top of the pressure ring 52. The adjustment ring 53 is threadedly connected to the discharge pipe 3. After rotating, the adjustment ring 53 moves along the length of the discharge pipe 3, while driving the pressure ring 52 to move synchronously. It cooperates with the fixed ring 51 to squeeze and fix the open end of the collection bag 4, ensuring that the collection bag 4 is tightly connected to the discharge pipe 3, and preventing the collection bag 4 from falling off and causing gravel particles or mineral dust to leak.

[0041] For further information, see Figures 5 to 8The extraction device includes a clamping assembly 6, which is used to secure the bottom of the collection bag 4 to prevent the collection bag 4 from being sucked into the protective cover 1 due to excessive negative pressure in the protective cover 1 during extraction of mining dust. The clamping assembly 6 includes a mounting ring 61 disposed on the outer ring of the collection bag 4. A plurality of fixing plates 62 are fixedly connected between the mounting ring 61 and the adjustment ring 53. After the adjustment ring 53 is tightened, the mounting ring 61 and the fixing plates 62 are fixed in position. At the same time, the mounting ring 61 and the fixing plates 62 can be rotated to drive the adjustment ring 53 to rotate, facilitating the rotation of the adjustment ring 53 and achieving convenient installation and removal of the collection bag 4. The clamping assembly 6 also includes four sets of clamping plates 63 disposed below the mounting ring 61. A first rotating shaft 64 is rotatably connected to each clamping plate 63. Positioning seats 65 are fixedly connected to each end of the first rotating shaft 64. Multiple sets of positioning seats 65 are fixedly connected to the bottom of the mounting ring 61. The fixed position of the positioning seats 65 maintains the position of the first rotating shaft 64, allowing the clamping plates 63 to rotate about the first rotating shaft 64, providing stable support for the rotation of the clamping plates 63. The ends of the clamping plates 63 facing away from the collection bag 4 are rotatably connected to a second rotating shaft 66. Connecting plates 67 are fixedly connected to each end of the second rotating shaft 66. The ends of the two sets of connecting plates 67 facing away from the second rotating shaft 66 are commonly fixedly connected to a third rotating shaft 68. A movable plate 69 is rotatably connected to the third rotating shaft 68. The arrangement of the second rotating shaft 66, connecting plates 67, and third rotating shaft 68 allows the movable plate 69 to rotate as the clamping plates 63 move, enabling the clamping plates 63 to precisely clamp the bottom of the collection bag 4. The four groups of movable plates 69 are fixedly connected to a movable ring 610. When the movable ring 610 moves, it drives the four groups of movable plates 69 to move synchronously, ensuring that the clamping force is evenly distributed. The movable ring 610 is slidably connected to the mounting ring 61 and the outer rings of multiple groups of fixed plates 62, so that the movement of the movable ring 610 is smooth, improving the stability of the clamping assembly 6. The outer ring of the movable ring 610 is fixedly connected to two groups of first connecting blocks 611. Bolts 612 are slidably connected to the first connecting blocks 611, and second connecting blocks 613 are slidably connected to the bolts 612. Both groups of second connecting blocks 613 are fixedly connected to the mounting ring 61. When the movable ring 610 moves, it drives the first connecting blocks 611 to move synchronously, so that the first connecting blocks 611 are close to the second connecting blocks 613. At the same time, it is guided by the bolts 612 to ensure that the moving direction of the movable ring 610 is accurate. A washer 614 and a spring 615 are provided on the side of the second connecting block 613 away from the first connecting block 611. The spring 615 is disposed between the second connecting block 613 and the washer 614. A nut 616 is threadedly connected to the bolt 612. When the nut 616 is tightened, the first connecting block 611 is brought closer to the second connecting block 613, and the spring 615 is compressed. The elastic force of the spring 615 pushes the first connecting block 611 downward, thereby driving the multiple sets of movable plates 69 downward. This causes the clamping plate 63 to rotate and clamp the bottom edge of the collection bag 4 against the inner wall of the mounting ring 61, thus reliably fixing the bottom of the collection bag 4.

[0042] Furthermore, the extraction device includes a fixed pipe 7 arranged on the outer ring of the protective cover 1. The fixed pipe 7 is connected to the inside of the protective cover 1 for extracting mining dust, providing a stable channel for mining dust extraction. The protective cover 1 is provided with a plurality of air holes 12 corresponding to the position of the fixed pipe 7 on the side away from the fixed pipe 7, which facilitates the entry of outside air, allows air circulation, ensures the smooth progress of the extraction process, and maintains the balance of air pressure in the device. A quick connector 8 is installed on the end of the fixed pipe 7 away from the protective cover 1. The fixed pipe 7 is connected to the pipeline through the quick connector 8, and is connected to the fan input end and the filter device through the pipeline. The filter device prevents the mine dust from directly entering the fan. The filter device adopts a bag type, which can be backwashed to recycle the mine dust, thereby improving the mine dust collection efficiency and resource utilization.

[0043] Finally, the extraction device includes a fixing mechanism 9 located on one side of the opening of the protective cover 1. The fixing mechanism 9 includes a mounting tube 91 that is rotatably connected to the outer ring of the protective cover 1 via a bearing. After the mounting tube 91 is fixed, due to the setting of the bearing, and the setting of the concentrating block 2, discharge pipe 3, collection bag 4, and clamping assembly 6, the weight of the location is relatively heavy and it will automatically be located at the bottom, avoiding manual adjustment during the installation process and improving the installation convenience of the device. A mounting plate 92 is fixedly connected to one side of the mounting tube 91. A plurality of sets of fixing ears 93 are set on the outside of the mounting plate 92. The setting of the fixing ears 93 facilitates the installation and fixation of the device, ensuring the stable operation of the device underground.

[0044] In this embodiment, first, the opening of the collection bag 4 is put on the outer ring of the fixed ring 51, and the fixed plate 62 is rotated to drive the adjustment ring 53 to rotate. The adjustment ring 53, which is threadedly connected to the discharge pipe 3, moves and drives the pressure ring 52 to move, and cooperates with the fixed ring 51 to squeeze the opening of the collection bag 4 to ensure a tight connection and prevent the leakage of gravel particles or mineral dust. After unscrewing the nut 616, move the movable ring 610 downward so that the first connecting block 611 moves downward and slides onto the bolt 612, and then tighten the nut 616 to squeeze the spring 615. When the movable ring 610 drives the movable plate 69 to move downward synchronously, the clamping plate 63 rotates and clamps the bottom edge of the collection bag 4. Afterwards, the elastic force of the spring 615 causes the movable ring 610 to always be subjected to a downward force, thereby ensuring that the clamping plate 63 stably clamps the bottom edge of the collection bag 4, and prevents the collection bag 4 from being sucked in due to excessive negative pressure in the protective cover 1 during extraction.

[0045] Mounting lugs 93 on mounting plate 92 securely mount the device underground, ensuring stable operation throughout the extraction process. Mounting barrel 91 in mounting mechanism 9 is pivotally connected to protective cover 1 via bearings. Once installed, the weight of the centralizing block 2, discharge tube 3, collection bag 4, and clamping assembly 6 automatically adjusts the position, eliminating the need for manual adjustment. The drill bit enters the drilling position through hole 11 in protective cover 1. Protective cover 1 isolates the drilling area from the outside world, effectively limiting the spread of dust.

[0046] The debris particles generated by drilling are concentrated under the guidance of the concentrating block 2 and discharged through the discharge pipe 3 connected to the protective cover 1, and fall into the collection bag 4 on the outer ring of the discharge pipe 3 to prevent the debris from scattering and causing secondary pollution, while facilitating subsequent centralized processing. The fixed pipe 7 is connected to the inside of the protective cover 1, and the outside air enters through the air holes 12 on the protective cover 1 corresponding to the fixed pipe 7, forming air circulation and maintaining the pressure balance in the device. The fixed pipe 7 is connected to the pipeline through the quick connector 8, connecting the fan input end and the bag filter device. The fan generates suction when it is running, and the mineral dust in the protective cover 1 is extracted through the fixed pipe 7. The mineral dust is intercepted when passing through the filter device, realizing the separation of mineral dust and air, and the filter device can backwash to recover mineral dust, thereby improving resource utilization.

[0047] The above specific embodiment is merely an optional embodiment of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above embodiment, those skilled in the art can make various alternative improvements and combinations to the above specific embodiment.

Claims

1. An underground drilling dust extraction device, characterized in that: include: A protective cover (1) with an opening on one side; A centralizing block (2) is provided on the inner wall of the protective cover (1), and a discharge pipe (3) in communication with the centralizing block (2) is fixedly connected to the outer side of the protective cover (1); a collecting bag (4) sleeved on the outer ring of the discharge pipe (3), the collecting bag (4) being used to collect gravel particles generated during drilling; a locking mechanism (5) mounted on an end of the discharge pipe (3) away from the protective cover (1), the locking mechanism (5) being used to fix the opening of the collection bag (4); A clamping assembly (6), the clamping assembly (6) being used to fix the bottom of the collection bag (4); A fixed pipe (7) is arranged on the outer ring of the protective cover (1), and the fixed pipe (7) is connected to the interior of the protective cover (1) for extracting mining dust; A fixing mechanism (9) is located on one side of the opening of the protective cover (1).

2. The underground drilling dust extraction device according to claim 1, characterized in that: The protective cover (1) is provided with a through hole (11) on a side away from the opening thereof.

3. The underground drilling dust extraction device according to claim 2, characterized in that: The protective cover (1) is provided with a plurality of groups of air holes (12) corresponding to the positions of the fixed tubes (7) on a side away from the fixed tubes (7).

4. The underground drilling dust extraction device according to claim 3, characterized in that: The locking mechanism (5) comprises a fixing ring (51) fixedly connected to the outer ring of the discharge pipe (3); the opening of the collecting bag (4) is sleeved on the outer ring of the fixing ring (51); a pressure ring (52) is provided on the outer side of the fixing ring (51); an adjusting ring (53) is fixedly connected to the top of the pressure ring (52); and the adjusting ring (53) is threadedly connected to the discharge pipe (3).

5. The underground drilling dust extraction device according to claim 4, characterized in that: The clamping assembly (6) comprises a mounting ring (61) arranged on the outer ring of the collecting bag (4), and a plurality of sets of fixing plates (62) are fixedly connected between the mounting ring (61) and the adjusting ring (53).

6. The underground drilling dust extraction device according to claim 5, characterized in that: The clamping assembly (6) further comprises a plurality of clamping plates (63) arranged below the mounting ring (61), wherein the clamping plates (63) are rotatably connected to a first rotating shaft (64), both ends of the first rotating shaft (64) are fixedly connected to a positioning seat (65), and the plurality of positioning seats (65) are fixedly connected to the bottom of the mounting ring (61), and the end of the clamping plate (63) away from the collecting bag (4) is rotatably connected to a second rotating shaft (66), both ends of the second rotating shaft (66) are fixedly connected to a connecting plate (67), and the ends of the two groups of connecting plates (67) away from the second rotating shaft (66) are commonly fixedly connected to a third rotating shaft (68), and a movable plate (69) is rotatably connected to the third rotating shaft (68), and the plurality of groups of movable plates (69) are commonly fixedly connected to a movable ring (610), and the movable ring (610) is slidably connected to the mounting ring (61) and the outer rings of the plurality of fixed plates (62).

7. The underground drilling dust extraction device according to claim 6, characterized in that: The outer ring of the movable ring (610) is fixedly connected to multiple groups of first connecting blocks (611), the first connecting blocks (611) are slidably connected to bolts (612), and the bolts (612) are slidably connected to second connecting blocks (613), and the multiple groups of second connecting blocks (613) are all fixedly connected to the mounting ring (61).

8. The underground drilling dust extraction device according to claim 7, characterized in that: A washer (614) and a spring (615) are provided on the side of the second connecting block (613) away from the first connecting block (611), and are sleeved on the outer ring of the bolt (612). The spring (615) is provided between the second connecting block (613) and the washer (614). A nut (616) is threadedly connected to the bolt (612).

9. The underground drilling dust extraction device according to claim 8, characterized in that: A quick connector (8) is installed at one end of the fixed pipe (7) away from the protective cover (1); the fixed pipe (7) is connected to a pipeline via the quick connector (8), and is connected to a fan input end and a filter device via the pipeline.

10. The underground drilling dust extraction device according to claim 9, characterized in that: The fixing mechanism (9) comprises a mounting cylinder (91) rotatably connected to the outer ring of the protective cover (1) via a bearing, a mounting plate (92) being fixedly connected to one side of the mounting cylinder (91), and a plurality of fixing ears (93) being provided on the outer side of the mounting plate (92).

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