A mine dust removal device

Abstract

A mine dust removal device solves the problems of frequent transfer, poor adaptability to complex working conditions and inflexible dust removal range adjustment of existing mine dust removal equipment. The device is installed on the boom of a heading machine and comprises a vertical guide rail, a horizontal slide rail, a bidirectional motor, a wind box and the like. The bidirectional motor drives the horizontal slide rail to move up and down along the vertical guide rail through a transmission structure, and the fan slider drives the wind box to slide back and forth along the horizontal slide rail, the dust collection port expands the dust collection range, and the wind bag guides the dust into the dust collection device. The device can move synchronously with the heading machine, realize multi-dimensional dust removal adjustment, has high dust removal efficiency, strong working condition adaptability and simple structure and is easy to maintain.

Description

Technical Field

[0001] This utility model relates to the field of mining machinery technology, and in particular to a dust removal device for mining. Background Technology

[0002] Mining operations generate large amounts of dust, which not only easily leads to pneumoconiosis among workers and dust explosions, but also accelerates equipment wear. Among existing dust removal equipment, fixed installations require frequent shutdowns and relocations, interrupting the tunneling process; mobile equipment, while movable, is limited by the narrow space of the tunnels, easily interferes with equipment such as tunneling machines, and is prone to slipping and getting stuck in inclined or uneven tunnels, making it difficult to achieve synchronous and precise following with the tunneling machine, resulting in poor dust removal efficiency and operational continuity.

[0003] Meanwhile, the existing dust removal equipment lacks flexibility in adjusting the dust removal range, with most only able to be adjusted in one direction, making it unable to adapt to the situation where dust spreads to multiple areas at the tunneling head; some equipment with multi-directional adjustment functions are also difficult to meet the needs of simple, reliable and easy-to-maintain use in mining sites due to their complex structure, cumbersome operation, and high maintenance difficulty, and have weak adaptability to complex working conditions. Utility Model Content

[0004] Existing dust removal equipment in mines suffers from technical defects such as inability to move synchronously with tunneling machines, poor flexibility in adjusting the dust removal range, and weak adaptability to complex mining conditions. These defects result in low dust removal efficiency, poor operational continuity, and high safety risks, making it difficult to meet the actual needs of mine tunneling operations. Therefore, developing a dust removal device that can move synchronously with tunneling machines, flexibly adjust the dust removal range, and adapt to complex mining conditions has become an urgent technical problem to be solved in this field.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A dust removal device for mining includes vertical guide rails, horizontal slide rails, a bidirectional motor, and a bellows. The vertical guide rails are symmetrically installed on both sides of the boom of a tunneling machine. The horizontal slide rails are slidably connected to the vertical guide rails. The bellows are mounted on the horizontal slide rails and can slide horizontally along the horizontal slide rails. The bidirectional motor is located between the two vertical guide rails and drives the horizontal slide rails to slide vertically along the vertical guide rails through a transmission device.

[0006] In a preferred embodiment, the bidirectional motor is fixedly connected to the side of the boom of the tunneling machine and located between two vertical guide rails. The drive shaft of the bidirectional motor is connected to one end of the drive shaft of the steering gear via a coupling, and the other end of the drive shaft of the steering gear is fixedly connected to the lead screw coaxially.

[0007] In a preferred embodiment, the lead screw is installed inside the vertical guide rail and rotates around its own axis under the drive of the steering gear drive shaft.

[0008] In a preferred embodiment, the lead screw is equipped with a transmission assembly. When the lead screw rotates, it drives the transmission assembly to move along the lead screw axis. The transmission assembly is fixedly connected to the transverse slide rail, thereby driving the transverse slide rail to move synchronously.

[0009] In a preferred embodiment, a fan slider is mounted on the transverse slide rail. The fan slider can slide along the transverse slide rail for a limited position. The transverse slide rails on both sides of the boom are arranged in parallel. The fan slider is fixedly connected to the side of the air box and can drive the air box to slide synchronously.

[0010] In a preferred embodiment, the fan slider is equipped with a self-locking mechanism, which can lock the fan slider at any position on the transverse slide rail.

[0011] In a preferred embodiment, one end of the air box is provided with a dust collection port, and the other end is connected to the air bag, with a fan installed at the dust collection port.

[0012] A dust removal device for mining, which has the following beneficial effects during use: 1. This device is installed on the boom of the tunneling machine and can move synchronously with the machine, eliminating the need for frequent machine shutdowns and relocations or additional operation of mobile equipment. It solves the problems of efficiency degradation of existing fixed dust removal equipment with distance and easy interference between mobile equipment and tunnel equipment. At the same time, it can treat dust in real time, significantly reduce dust concentration in the work area, protect personnel from the threat of pneumoconiosis, and avoid the risk of dust explosion. 2. Relying on the cooperation of vertical guide rail and horizontal slide rail, the dust removal mechanism can move flexibly up and down and back and forth; the horizontal slide rail extends inward in an arc shape, which can make the dust removal mechanisms on both sides concentrate the dust suction towards the center of the tunneling head. Combined with the dust collection port that transitions from a circular inlet to a square one, the adsorption range is expanded, forming a three-dimensional adjustment capability, which can accurately adapt to the working conditions of multi-area dust diffusion. The dust removal efficiency is better than the existing single-direction adjustment equipment. 3. The transmission rod connects the two sides of the structure to ensure the synchronization of vertical movement and avoid tilting and jamming; the bottom of the blower slider adopts a cylindrical design to reduce friction with the guide rail groove, so that it can slide smoothly even in inclined and uneven tunnels; the whole is supported by the tunneling machine, without the need for an additional walking mechanism, and is not limited by the narrow space of the tunnel, so it can operate stably in various underground tunneling scenarios. 4. With fewer core components and no complex redundant structure, the power transmission path is simple and there are fewer points of failure; the connection method of each component is easy to disassemble and repair without the need for professional tools, which reduces the cost of use and maintenance, meets the needs of the mine site, and is easy to promote in mines of different sizes; at the same time, the real-time dust removal reduces the wear of dust on the equipment, extends the service life of the device and the tunneling machine, and reduces the overall operating cost. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1This is a top view of the mining dust removal fan of this utility model; Figure 2 This is a side view of the mining dust removal fan of this utility model; Figure 3 This is a schematic diagram of the bidirectional motor drive device of this utility model.

[0014] In the diagram: 1. Vertical guide rail; 2. Lead screw; 3. Transmission rod; 4. Bidirectional motor; 5. Transmission assembly; 6. Horizontal slide rail; 7. Fan slider; 8. Dust collection port; 9. Air box; 10. Air bag; 11. Fan; 12. Coupling; 13. Steering gear; 14. Boom. Detailed Implementation

[0015] like Figure 1 and Figure 2 As shown, a dust removal device for mining includes a vertical guide rail 1, a horizontal slide rail 6, a bidirectional motor 4, and a bellows 9. The vertical guide rail 1 is symmetrically installed on both sides of the boom 14 of the tunneling machine by welding, providing stable support for the overall device. The horizontal slide rail 6 slides with the vertical guide rail 1, and its bottom is connected to the transmission structure to ensure smooth sliding. The bellows 9 is mounted on the horizontal slide rail 6 by a fan slider 7, and can slide smoothly horizontally along the horizontal slide rail 6. The bidirectional motor 4 is set between the two vertical guide rails 1, and drives the horizontal slide rail 6 to move vertically along the vertical guide rail 1 through a transmission device composed of a transmission rod 3, a steering gear 13, etc., to realize the overall height adjustment of the dust removal mechanism and adapt to the dust control needs of different tunneling heights.

[0016] Preferred solutions include Figure 3 As shown, the bidirectional motor 4 is fixedly connected to the side of the tunneling machine boom 14 by bolts and is located between two vertical guide rails 1 to avoid interference with other components. The drive shaft of the bidirectional motor 4 is connected to one end of the drive shaft of the steering gear 13 through a coupling 12. The coupling 12 can buffer the impact during power transmission and ensure the coaxiality of the transmission. The other end of the drive shaft of the steering gear 13 is coaxially fixedly connected to the lead screw 2. The steering gear 13 can change the direction of power transmission and adapt to the vertical arrangement of the lead screw 2 to ensure that the motor power can be effectively transmitted to the lead screw 2.

[0017] Preferred solutions include Figure 2 As shown, the lead screw 2 is installed inside the vertical guide rail 1, and its upper and lower ends are connected to the upper and lower ends of the vertical guide rail 1 through bearings to reduce rotational friction. Under the drive of the drive shaft of the steering gear 13, it rotates around its own axis. The drive shaft and the lead screw 2 are connected by a key to ensure stable torque transmission, thereby converting the rotational motion into subsequent linear motion and providing power for the lifting and lowering of the transverse slide rail 6.

[0018] Preferred solutions include Figure 2As shown, a transmission assembly 5 is mounted on the lead screw 2. The transmission assembly 5 has a nut that matches the lead screw 2, forming a lead screw and nut pair. When the lead screw 2 rotates, it drives the transmission assembly 5 to move smoothly along the axial direction of the lead screw 2. The transmission assembly 5 is fixedly connected to the transverse slide rail 6 by welding or bolts, which has high connection strength and can drive the transverse slide rail 6 to move synchronously, ensuring that there is no tilting or jamming during the lifting and lowering of the transverse slide rail 6, and ensuring the overall stability of the dust removal mechanism.

[0019] Preferred solutions include Figure 1 and Figure 2 As shown, a fan slider 7 is mounted on the transverse slide rail 6. The transverse slide rail 6 extends inward in an arc shape, which facilitates the concentrated dust suction of the two side air boxes 9 towards the center area of ​​the tunneling head. The fan slider 7 can slide along the groove of the transverse slide rail 6. It is provided with multiple cylindrical rollers at its bottom, which can greatly reduce the friction with the groove and make the sliding smoother. The transverse slide rails 6 on both sides of the boom 14 are arranged in parallel. The fan slider 7 is welded and fixed to the side of the air box 9, and the connection is firm. It can drive the air box 9 to slide synchronously and flexibly adjust the front and rear positions of the air box 9 to cover different dust areas.

[0020] Preferred solutions include Figure 2 As shown, the fan slider 7 is equipped with a self-locking mechanism. The self-locking mechanism can be bolted or snap-fitted, which is easy to operate and can quickly lock onto the transverse slide rail 6 after the fan slider 7 is adjusted to the target position. This prevents the slider from sliding due to vibration during the tunneling operation, ensures the stability of the dust removal position, and does not require additional power to maintain the locked state.

[0021] Preferred solutions include Figure 1 and Figure 2 As shown, one end of the air box 9 is provided with a dust collection port 8. The inlet of the dust collection port 8 is circular to expand the initial dust collection range, and the rear gradually becomes square to adapt to the air box 9 interface and reduce airflow resistance. The other end of the air box 9 is connected to a ventilation bag 10. The ventilation bag 10 is made of wear-resistant and flexible material, which can be flexibly deformed with the movement of the tunneling machine to avoid damage. A fan 11 is installed at the dust collection port 8. The fan 11 is installed on the side close to the dust collection port 8. After starting, it can generate a stable negative pressure airflow, which efficiently sucks the dust into the air box 9, and then transports it through the ventilation bag 10 to the dust collection and purification device at the rear to complete the dust collection and treatment.

[0022] The operation steps for dust removal are as follows: Start the bidirectional motor 4. The motor power is transmitted to the steering gear 13 via the transmission rod 3. The steering gear 13 then drives the lead screw 2 to rotate. The lead screw 2, in cooperation with the transmission component 5, converts the rotational motion into linear motion, causing the transmission component 5 and the transverse slide rail 6 to move up and down. After the dust removal mechanism is adjusted to the appropriate height, turn off the bidirectional motor 4. Then, push the fan slider 7 to slide in the groove of the transverse slide rail 6, adjusting the air box 9 to a position close to the dust source. Lock the fan slider 7 using the self-locking mechanism. Finally, start the fan 11. The fan 11 rotates to generate negative pressure airflow. Dust from the tunneling head is drawn into the air box 9 through the dust collection port 8 and then transported to the rear dust collection device for processing via the air bag 10. Throughout the process, the device moves synchronously with the tunneling machine boom 14, requiring no frequent adjustments and enabling continuous and efficient dust removal. If the dust diffusion range changes, repeat the above steps for fine-tuning.

Claims

1. A dust removal device for mining, comprising a vertical guide rail (1), a horizontal slide rail (6), a bidirectional motor (4), and a bellows (9); characterized in that: The vertical guide rails (1) are symmetrically installed on both sides of the boom (14) of the tunneling machine. The horizontal slide rail (6) is slidably connected to the vertical guide rail (1). The air box (9) is mounted on the horizontal slide rail (6) and can slide horizontally along the horizontal slide rail (6). The bidirectional motor (4) is set between the two vertical guide rails (1) and drives the horizontal slide rail (6) to slide vertically along the vertical guide rail (1) through the transmission device.

2. The dust removal device for mining according to claim 1, characterized in that: The bidirectional motor (4) is fixedly connected to the side of the boom (14) of the tunneling machine and located between two vertical guide rails (1). The drive shaft of the bidirectional motor (4) is connected to one end of the drive shaft of the steering gear (13) through a coupling (12). The other end of the drive shaft of the steering gear (13) is coaxially fixedly connected to the lead screw (2).

3. The dust removal device for mining according to claim 2, characterized in that: The lead screw (2) is installed inside the vertical guide rail (1) and rotates around its own axis under the drive of the steering gear (13) transmission shaft.

4. The dust removal device for mining according to claim 3, characterized in that: The lead screw (2) is equipped with a transmission assembly (5). When the lead screw (2) rotates, it drives the transmission assembly (5) to move along the axial direction of the lead screw (2). The transmission assembly (5) is fixedly connected to the transverse slide rail (6), thereby driving the transverse slide rail (6) to move synchronously.

5. The dust removal device for mining according to claim 1, characterized in that: The transverse slide rail (6) is equipped with a fan slider (7). The fan slider (7) can slide along the transverse slide rail (6) for a limited position. The transverse slide rails (6) on both sides of the boom (14) are arranged in parallel. The fan slider (7) is fixedly connected to the side of the air box (9) and can drive the air box (9) to slide synchronously.

6. The dust removal device for mining according to claim 5, characterized in that: The fan slider (7) is equipped with a self-locking mechanism, which can lock the fan slider (7) at any position on the transverse slide rail (6).

7. The dust removal device for mining according to claim 5, characterized in that: One end of the bellows (9) is provided with a dust collection port (8), and the other end is connected to the air bag (10). A fan (11) is installed at the dust collection port (8).

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