High negative pressure mine ventilation device

Abstract

The utility model discloses a high negative pressure mine ventilation device which comprises an air duct, an air duct is fixedly installed on the rear wall of the air duct, an air inlet is formed in the front wall of the air duct, a rotating rod is rotatably installed in the air duct, a drainage piece is fixedly connected to the surface of the rotating rod, blades are installed at the front end of the rotating rod, and the drainage piece is fixedly connected to the surface of the rotating rod. A motor is fixedly installed at the end, away from the blades, of the rotating rod. The air duct is communicated with the air duct, the two air inlets are designed in the air duct, the rotating rods are arranged in the two air inlets respectively, the motors are installed on the rotating rods, when the motors are started, the rotating rods can be driven by the motors to rotate continuously, and in order to enhance the air flowing efficiency, the rotating rods are driven by the motors to rotate continuously. The curved drainage pieces are specially arranged on the surface of the rotating rod, the curved design of the drainage pieces is unique, the drainage pieces are long, and therefore the drainage pieces can effectively guide air when the rotating rod rotates.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mine technical field, concretely is a high negative pressure mine ventilation device. BACKGROUND

[0002] The mine is the general term of the shaft, the chamber, the equipment, the ground building and the structure of the underground coal mine production system, sometimes the inclined shaft, the shaft, the adit etc. in the underground development of the mine are also called the mine, the determination of the minefield range size, the mine production capacity and the service life of each mine is one of the key problems that must be solved in the mine self design, the mine ventilation is to input fresh air into the mine, increase the oxygen concentration, dilute and remove the toxic and harmful gas and the dust in the mine, and the mine ventilation device is the device used in the mine ventilation.

[0003] The mine ventilation device disclosed in the prior art document with the publication number CN222414922U comprises a ventilation cylinder, support frames are fixed on both sides of the inside of the ventilation cylinder, a fixing sleeve is fixed in the inside of the support frame, a motor is installed in the inside of the fixing sleeve, a fan blade is installed on the output end of one side of the motor, and a filter screen is installed in the inside of the ventilation cylinder; the mine ventilation device can suck air into the inside of the mine through the ventilation cylinder when ventilating, the filter screen can filter impurities in the air, thereby improving the cleanliness of the air entering the mine, creating a good mine working environment, and the switch of the hydraulic cylinder can be opened regularly to drive the movable plate to move up and down on one side of the filter screen, the dust attached to the surface of the filter screen is cleaned by the cleaning brush, the dust is prevented from blocking the ventilation effect, and the falling dust is discharged by pulling out the baffle.

[0004] In the current mine ventilation equipment, the single fan ventilation mode is generally used, however, this single fan ventilation mode has some obvious deficiencies, first, the vortex negative pressure generated by the single fan is often not strong enough, which makes it quite difficult to ventilate quickly and effectively in the mine tunnel, second, due to the use of the single fan, the system is not powerful enough in terms of pressure, and cannot provide enough power to ensure the air circulation in the mine tunnel, in addition, although the multi-channel design of the single fan can realize ventilation in multiple directions in theory, due to the insufficient negative pressure, the air flow in these channels often cannot reach the expected level, thereby causing potential waste of the channel structure, and this design defect reduces the ventilation efficiency.

[0005] Therefore, the person skilled in the art provides a high negative pressure mine ventilation device to solve the problems in the above background. UTILITY MODEL CONTENTS

[0006] The utility model discloses a high negative pressure mine ventilation device, to solve the problem of poor ventilation efficiency caused by single fan ventilation of the existing mine ventilation device in the background art.

[0007] To achieve the above object, the utility model provides the following technical scheme:

[0008] A high negative pressure mine ventilation device, including: the wind tube, the rear wall fixed mounting of wind tube has the air duct, the front wall of wind tube is provided with the air inlet, the inside rotatory mounting of wind tube has the rotary rod, the surface fixed connection of rotary rod has the flow guide piece, the front end mounting of rotary rod has the blade, the one end fixed mounting of rotary rod away from blade has the motor, the inner wall of air inlet is provided with the vortex air guide piece, the surface one side of air duct is connected with the exhaust duct, the front end fixed mounting of air inlet has the filter cartridge through screw.

[0009] As a further scheme of the utility model: the motor and rotary rod are fixedly connected, and two groups of rotary rods are symmetrically arranged in the inside of the wind tube.

[0010] As a further scheme of the utility model: the external shape of the flow guide piece is curved, and the flow guide piece is annularly distributed about the center line of the rotary rod.

[0011] As a further scheme of the utility model: the front end of the filter cartridge is integrally connected with a horn mouth, and a filter screen one is embeddedly installed in the inside of the horn mouth.

[0012] As a further scheme of the utility model: a filter screen two is installed in the inside of the front end of the horn mouth, and a filter screen interlayer is arranged in the inside of the filter screen two.

[0013] As a further scheme of the utility model: a flow guide plate is arranged in the inside of the air duct, and a ring channel is arranged on the outside of the flow guide plate, an outlet is arranged at the upper end of the ring channel, and the ring channel and the exhaust duct are in communication through the outlet.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1. The wind cylinder and air duct are connected to each other, and two air inlets are designed on the wind cylinder, each of which is equipped with a rotating rod, and the rotating rod is installed with a motor, when the motor starts, it will drive the rotating rod to rotate continuously, in order to enhance the efficiency of air flow, the surface of the rotating rod is specially provided with curved guide vane, the curved design of the guide vane is not only unique, but also long, which makes it can effectively guide the air and produce long vortex in the air when the rotating rod rotates, this long vortex helps to orderly discharge the air, prevent the disorderly accumulation of vortex pressure, thereby avoiding the adverse effect on the air flow speed, in addition, by setting two groups of rotating rods and corresponding motors in the wind cylinder, two groups of vortex are formed in the wind cylinder, the setting of double fan increases the generation of negative pressure, thereby significantly improving the ventilation efficiency.

[0016] 2. A group of blades is arranged at the front end of the rotating rod, which is different from the installation mode of traditional plane blades, they are installed with backward inclination, this installation mode makes the blade group form a conical structure at the front end of the rotating rod, when the rotating rod starts to work, the blades of this conical structure can guide the air flow more smoothly, they will effectively guide the air into the rear guide vane, thereby significantly increasing the space of air flow, in this way, the air can be introduced faster and discharged quickly, thereby greatly improving the speed and efficiency of ventilation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural diagram of a high negative pressure mine ventilation device.

[0018] Figure 2 It is a structural diagram of a high negative pressure mine ventilation device.

[0019] Figure 3 It is a structural diagram of a high negative pressure mine ventilation device.

[0020] Figure 4 It is a structural diagram of a high negative pressure mine ventilation device.

[0021] Figure 5 It is a structural diagram of a high negative pressure mine ventilation device.

[0022] In the figure: 1, wind cylinder; 2, air duct; 3, exhaust duct; 4, air inlet; 5, filter cylinder; 6, vortex guide vane; 7, rotating rod; 8, blade; 9, guide vane; 10, motor; 11, horn; 12, filter screen; 13, filter screen; 14, filter screen interlayer; 15, ring; 16, outlet; 17, guide plate. DETAILED DESCRIPTION

[0023] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0024] Please refer to Figures 1-5 The embodiment of the present application provides a high negative pressure mine ventilation device, comprising: a wind pipe 1, a wind channel 2 is fixedly installed on the rear wall of the wind pipe 1, a guide plate 17 is arranged in the wind channel 2, and an annular channel 15 is arranged on the outer side of the guide plate 17, an outlet 16 is arranged at the upper end of the annular channel 15, the annular channel 15 and the exhaust duct 3 are interconnected through the outlet 16, a vortex air guide piece 6 is arranged on the inner wall of the air inlet 4, the surface of the wind channel 2 is connected with the exhaust duct 3 on one side, and a filter cylinder 5 is fixedly installed at the front end of the air inlet 4 through screws. Air is introduced into the wind pipe 1 through the air inlet 4, and the air is introduced into the rear wind channel 2 through the drainage piece 9 in the wind pipe 1, the guide plate 17 arranged in the wind channel 2 guides the air, the guide plate 17 is of an "L" shape, after the air is introduced into the guide plate 17, the "L" shaped guide plate 17 is beneficial to block the backflow of the air into the wind pipe 1, so that the air is introduced into the annular channel 15 and enters the exhaust duct 3 through the outlet 16 at the upper end of the annular channel 15.

[0025] The front end of the filter cylinder 5 is integrally connected with a flared mouth 11, a filter screen one 12 is embedded and installed in the inside of the flared mouth 11, a filter screen two 13 is installed in the inside of the front end of the flared mouth 11, and a filter screen interlayer 14 is arranged in the inside of the filter screen two 13. The filter cylinder 5 and the air inlet 4 are connected with each other, the filter cylinder 5 is provided with the flared mouth 11, the flared mouth 11 is used to enlarge the inlet diameter of the filter cylinder 5, the filter screen one 12 and the filter screen two 13 are arranged, the filter screen interlayer 14 is arranged in the inside of the filter screen two 13, the dust in the air is filtered through the three groups of filter screens, the dust is prevented from entering the wind pipe 1, the dust is prevented from accumulating in the inside of the wind pipe 1 and on the blade 8, and the large energy consumption of the motor 10 is prevented.

[0026] The front wall of the air duct 1 is provided with an air inlet 4, the inside of the air duct 1 is rotatably provided with a rotating rod 7, the surface of the rotating rod 7 is fixedly connected with a flow guide piece 9, the front end of the rotating rod 7 is provided with a blade 8, and the end, away from the blade 8, of the rotating rod 7 is fixedly provided with a motor 10, the motor 10 is fixedly connected with the rotating rod 7, and two groups of the rotating rod 7 are symmetrically arranged in the inside of the air duct 1, the outer shape of the flow guide piece 9 is curved, and the flow guide piece 9 is annularly distributed about the center line of the rotating rod 7. The motor 10 drives the rotating rod 7 to rotate, when the rotating rod 7 starts to rotate, the curved flow guide piece 9 rotates along with the rotating rod 7, the flow guide piece 9 is designed to have a relatively long length, so that, in the process of rotating air, vortex can be formed, since the length of the flow guide piece 9 is relatively long, the length of the vortex caused by the flow guide piece 9 is also relatively long, such a design is helpful to avoid that the vortex pressure surface is too large, so that the rotating vortex of the adjacent rotating rod 7 is not adversely affected, through the cooperation of the two groups of vortex, the air draft intensity is strengthened, the negative pressure is improved, and the air exhaust efficiency is improved, each group of the rotating rod 7 corresponds to a group of the motor 10, so that the two groups of the rotating rod 7 need two groups of the motor 10, the two groups of the motor 10 can keep synchronous working state through a synchronous controller, meanwhile, the front end of the rotating rod 7 is provided with the blade 8, the blade 8 is inclined rearward, so that a conical structure is formed at the front end of the rotating rod 7, the inclined blade 8 is helpful to make the air flow to the rear flow guide piece 9 more smoothly, and the air is effectively guided out in cooperation with the flow guide piece 9.

[0027] The working principle of the utility model is:

[0028] When the utility model is used, the motor 10 starts, drives the rotating rod 7 to rotate, the blade 8 at the front end of the rotating rod 7 rotates, air is sucked from the air inlet 4, the air is filtered by the filter screen one 12, the filter screen two 13 and the filter screen interlayer 14 in the filter cylinder 5, dust particles in the air are effectively removed, the filtered air enters the air duct 1, is guided by the curved flow guide piece 9 on the rotating rod 7, vortex is formed, the two groups of the rotating rod 7 work cooperatively, the air draft intensity is strengthened, the negative pressure is improved, the air passes through the air duct 2 more efficiently, the L-shaped flow guide plate 17 in the air duct 2 ensures that the air does not flow back to the air duct 1, but is guided to the annular channel 15 and is finally discharged through the air exhaust pipe 3, the whole device realizes the effective circulation and purification of the air in the mine through the high-efficiency negative pressure ventilation system.

[0029] The above only describes the preferred embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A high negative pressure mine ventilation device, characterized in that, Include: The wind pipe (1), the rear wall of the wind pipe (1) is fixedly installed with air duct (2), the front wall of the wind pipe (1) is provided with air inlet (4), the inside of the wind pipe (1) is rotatably installed with rotating rod (7), the surface of the rotating rod (7) is fixedly connected with the flow guide piece (9), the front end of the rotating rod (7) is installed with blade (8), the end of the rotating rod (7) away from the blade (8) is fixedly installed with motor (10), the inner wall of the air inlet (4) is provided with vortex air guide piece (6), the surface of the air duct (2) is connected with exhaust duct (3) on one side, the front end of the air inlet (4) is fixedly installed with filter cartridge (5) through screw.

2. A high negative pressure mine ventilation device according to claim 1, characterized in that, The motor (10) and the rotating rod (7) are fixedly connected, and the rotating rod (7) is symmetrically provided with two groups inside the wind pipe (1).

3. A high negative pressure mine ventilation device according to claim 1, characterized in that, The outer shape of the flow guide piece (9) is curved, and the flow guide piece (9) is annularly distributed about the center line of the rotating rod (7).

4. A high negative pressure mine ventilation device according to claim 1, characterized in that, The front end of the filter cartridge (5) is integrally connected with the bell mouth (11), and the bell mouth (11) is embeddedly installed with the filter screen one (12) inside.

5. A high negative pressure mine ventilation device according to claim 4, characterised in that, The front end of the bell mouth (11) is installed with the filter screen two (13) inside, and the filter screen two (13) is provided with filter screen interlayer (14) inside.

6. A high negative pressure mine ventilation device according to claim 1, characterised in that, The inside of the air duct (2) is provided with guide plate (17), and the outside of the guide plate (17) is provided with ring channel (15), the upper end of the ring channel (15) is provided with outlet (16), and the ring channel (15) is communicated with the exhaust duct (3) through the outlet (16).

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