Mine ventilation device convenient for guiding smoke flow

Abstract

The utility model relates to the technical field of mine ventilation devices, and discloses a mine ventilation device convenient for guiding smoke flow. The mine ventilation device capable of conveniently guiding the smoke flow comprises a ventilation pipe, a fixing frame is fixedly installed on the outer side of the ventilation pipe, a smoke exhaust pipe is fixedly installed above the ventilation pipe, a stepping motor is fixedly installed in the fixing frame, a driving shaft is installed in the ventilation pipe in a penetrating and inserting mode, and the smoke exhaust pipe is fixedly installed above the ventilation pipe. After monitoring data of the smoke sensor is compared with a threshold value through the PLC, a control signal is transmitted to the stepping motor to adjust the rotating angle of the partition plate, the partition plate in the branch above the ventilation pipe and the partition plate in the front side of the ventilation pipe are converted into a vertical state from a horizontal state, and at the moment, airflow can enter the smoke exhaust pipe through the branch above the ventilation pipe; the smoke exhaust pipes are connected through the pipeline structure to form a pipeline used for exhausting smoke, and therefore smoke is prevented from being diffused to other areas through the pipeline structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to mine ventilation device technical field, concretely is a mine ventilation device convenient to the smoke flow is guided. BACKGROUND

[0002] The mine ventilation device includes the main fan, the air shaft, the air cylinder, the air door and the like key equipment. Fresh air is introduced or discharged into the mine through the air exhaust shaft or the air inlet shaft. Generally, fresh air can be directly discharged, and the air in the mine is discharged after preliminary filtration, so as to reduce the influence of dust on subsequent pipeline transportation and facilitate ventilation in the mine.

[0003] The existing can refer to the announcement number for: CN221942495U Chinese utility model patent, it discloses a mine ventilation device, including ventilation box, being equipped with working chamber and input chamber in ventilation box, being equipped with fan in working chamber;The input chamber side is equipped with air inlet, and the input chamber top is connected with a plurality of filter inclined plates, and each group of filter inclined plates one side is equipped with the inclined baffle connected in the input chamber bottom, and the filter inclined plate near the air inlet one side is equipped with the cleaning rod, and the ventilation box is installed with the moving piece for adjusting the cleaning rod to brush in the filter inclined plate;The fan air inlet end is connected with the air inlet pipe extending into the input chamber;The fan works in the utility model and can produce negative pressure in the input chamber, the air in the mine can enter the ventilation box, the dust flows between the filter inclined plate and the inclined baffle and filters, and at the same time contacts the water placed in the input chamber, can be further filtered, avoids the air humidity increase caused by water spraying, facilitates the air filtration and discharge in the mine, cooperates with the existing gas sending device, and is beneficial to the ventilation in the mine.

[0004] The existing ventilation device is generally connected with each area of the mine through the exhaust duct, and the air pressure in the mine is reduced when the air in the exhaust duct is extracted, and fresh air is sent into the mine through the air supply duct. When a fire occurs in one area of the mine, the smoke will spread to other areas through the exhaust duct. At the same time, the existing mine ventilation device is located on the ground, which causes slow flow rate in the mine pipeline and affects the ventilation effect. UTILITY MODEL CONTENTS

[0005] (I) Technical problem solved

[0006] In view of the deficiencies of the prior art, the utility model provides a mine ventilation device convenient for guiding smoke flow, which has the advantages of improving the air flow rate in the pipeline and preventing smoke from spreading through the ventilation duct during a fire, and solves the above technical problems.

[0007] (II) Technical scheme

[0008] To achieve the above objectives, this utility model provides the following technical solution: a mine ventilation device for guiding smoke flow, comprising: a ventilation pipe, a fixed frame fixedly installed on the outer side of the ventilation pipe, a smoke exhaust pipe fixedly installed above the ventilation pipe, a stepper motor fixedly installed inside the fixed frame, a drive shaft inserted inside the ventilation pipe, a partition fixedly installed at the center of the drive shaft, a smoke sensor and a PLC controller fixedly installed on the inner wall of the ventilation pipe, a connecting frame fixedly installed inside the ventilation pipe, a drive motor fixedly installed inside the connecting frame, a transmission shaft fixedly installed at the end of the drive motor's rotating shaft, an exhaust plate and an air inlet plate mounted on the outer fixed rod of the transmission shaft, bearings fixedly installed on the outer sides of the air inlet plate and the exhaust plate, and a baffle fixedly installed between the air inlet plate and the exhaust plate; the ventilation pipe facilitates the extraction of air from the roadway.

[0009] As a preferred embodiment of this utility model, the ventilation duct has tubular branches on its lower rear side and upper front side, the fixing frame is installed on the outer side of the upper front branch and the outer front end of the ventilation duct, and the stepper motor is symmetrically installed on the left and right sides of the fixing frame with the center of the fixing frame as a reference; the fixing frame can restrict the position of the stepper motor.

[0010] As a preferred technical solution of this utility model, the two ends of the drive shaft are connected to the rotating shafts of the stepper motors on the left and right sides of the fixed frame through the ventilation pipes respectively. The partition is disc-shaped, and the upper branch of the ventilation pipe and the partition inside the front side are kept in a horizontal state by default. The drive shaft can drive the partition to rotate.

[0011] As a preferred embodiment of this utility model, the connecting frame is symmetrically installed on the outside of the drive motor with the center of the drive motor as the reference, and the drive motor is fixedly connected to the ventilation pipe through the connecting frame; the connecting frame can restrict the position of the drive motor.

[0012] As a preferred embodiment of this utility model, the front end of the transmission shaft is fixedly connected to the rotating shaft of the drive motor, and the baffle is installed in a ring shape between the exhaust plate and the intake plate with the center of the transmission shaft as the reference; the transmission shaft can drive the exhaust plate and the intake plate to rotate.

[0013] As a preferred embodiment of this utility model, the outer edge of the exhaust plate is provided with notches distributed in a ring around the center of the exhaust plate, and the air intake plate is provided with circular openings distributed in a ring around the center of the air intake plate near the center; the air intake plate can restrict air from entering between the air intake plate and the exhaust plate from near the center.

[0014] As a preferred technical solution of this utility model, the exhaust plate and the air intake plate are rotatably connected to the ventilation pipe through the bearing. There are three sets of exhaust plates, air intake plates and baffles, and the distance between each set is consistent. When the baffle rotates, it can compress the air to the outer edge of the exhaust plate.

[0015] Compared with the prior art, this utility model provides a mine ventilation device that facilitates the guidance of flue gas flow, and has the following beneficial effects:

[0016] 1. This utility model uses partitions to connect ventilation pipes through a pipe structure, forming an exhaust passage. The partitions are disc-shaped, and their outer diameter fits into the inner wall of the ventilation pipe. Smoke sensors can monitor the smoke concentration inside the ventilation pipe and transmit the monitoring data to a PLC controller. After comparing the data with a threshold, the PLC controller sends a control signal to the stepper motor to adjust the rotation angle of the partitions, changing the partitions in the upper branch of the ventilation pipe and the front side of the ventilation pipe from a horizontal state to a vertical state. At this time, the airflow can enter the smoke exhaust pipe through the upper branch of the ventilation pipe. The smoke exhaust pipes are connected by a pipe structure to form a pipe for smoke exhaust, thereby preventing smoke from spreading to other areas through the pipe structure.

[0017] 2. This utility model, through the setting of a drive motor, can drive the transmission shaft to rotate. Since the baffle is installed in a ring between the exhaust plate and the intake plate with the center of the transmission shaft as the reference, the outer edge of the exhaust plate is provided with notches distributed in a ring with the center of the exhaust plate as the reference, and the intake plate is provided with circular openings distributed in a ring with the center of the intake plate as the reference near the center, when the exhaust plate, intake plate, and baffle rotate, the air between the exhaust plate and the intake plate will move towards the notch at the outer edge of the exhaust plate under the drive of the baffle and move forward through the notch. The air behind the intake plate will enter between the exhaust plate and the intake plate through the circular opening of the intake plate, so that the air is compressed three times and moves backward, thereby generating airflow inside the ventilation pipe. This method can drive the airflow at each air intake of the ventilation pipe to ensure the gas flow rate inside the ventilation device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the exhaust pipe of this utility model;

[0020] Figure 3 This is a schematic diagram of the partition installation structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the baffle installation structure of this utility model;

[0022] The components include: 1. Ventilation duct; 11. Fixing frame; 12. Smoke exhaust duct; 13. Stepper motor; 14. Drive shaft; 15. Partition plate; 16. Smoke sensor; 17. PLC controller; 18. Connecting frame; 19. Drive motor; 110. Transmission shaft; 111. Exhaust plate; 112. Intake plate; 113. Bearing; 114. Baffle plate. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please see Figure 1 - Figure 4In this embodiment, a mine ventilation device for guiding smoke flow includes: a ventilation pipe 1, a fixing frame 11 fixedly installed on the outside of the ventilation pipe 1, a smoke exhaust pipe 12 fixedly installed above the ventilation pipe 1, a stepper motor 13 fixedly installed inside the fixing frame 11, a drive shaft 14 inserted inside the ventilation pipe 1, a partition 15 fixedly installed at the center of the drive shaft 14, a smoke sensor 16 and a PLC controller 17 fixedly installed on the inner wall of the ventilation pipe 1, a connecting frame 18 fixedly installed inside the ventilation pipe 1, a drive motor 19 fixedly installed inside the connecting frame 18, a transmission shaft 110 fixedly installed at the end of the shaft of the drive motor 19, an exhaust plate 111 and an air inlet plate 112 mounted on the outer fixed rod of the transmission shaft 110, bearings 113 fixedly installed on the outer sides of the air inlet plate 112 and the exhaust plate 111, and a baffle 114 fixedly installed between the air inlet plate 112 and the exhaust plate 111.

[0027] Tubular branches are provided on the lower rear side and upper front side of ventilation duct 1. A fixing bracket 11 is installed on the outer side of the upper front branch and the outer front end of ventilation duct 1. Stepper motors 13 are symmetrically installed on the left and right sides of the fixing bracket 11 with the center of the fixing bracket 11 as the reference. Both ends of the drive shaft 14 pass through ventilation duct 1 and are fixedly connected to the rotating shafts of the stepper motors 13 on the left and right sides of the fixing bracket 11, respectively. The partition 15 is disc-shaped. The upper branch and the partition 15 inside the front side of ventilation duct 1 are kept horizontal by default. A connecting bracket 18 is symmetrically installed on the outer side of the drive motor 19 with the center of the drive motor 19 as the reference. The drive motor 19 is connected to the ventilation duct 1 through the connecting bracket 18. The drive shaft 110 is fixedly connected to the drive motor 19. The baffle 114 is installed in a ring between the exhaust plate 111 and the intake plate 112 with the center of the drive shaft 110 as the reference. The outer edge of the exhaust plate 111 is provided with notches distributed in a ring with the center of the exhaust plate 111 as the reference. The intake plate 112 is provided with circular openings distributed in a ring with the center of the intake plate 112 as the reference near the center. The exhaust plate 111 and the intake plate 112 are rotatably connected to the ventilation pipe 1 through the bearing 113. There are three sets of exhaust plate 111, intake plate 112 and baffle 114, and the distance between each set is consistent.

[0028] Specifically, the ventilation duct 1 facilitates the extraction of air from the tunnel, the fixing frame 11 restricts the position of the stepper motor 13, the rotating shaft of the stepper motor 13 is fixedly connected to the drive shaft 14, the drive shaft 14 and the ventilation duct 1 form a rotatable connection, the baffle 15 is fixedly connected to the drive shaft 14, and the angle of the baffle 15 is adjusted by the stepper motor 13 driving the drive shaft 14 to rotate, thereby controlling the direction of the smoke. The smoke sensor 16 can monitor the smoke concentration inside the ventilation duct 1 and transmit the monitoring data to the PLC controller 17. After comparing the data with a threshold, the PLC controller 17 sends a control signal to the stepper motor 13 to adjust the rotation angle of the baffle 15. The connecting frame 18 restricts the position of the drive motor 19, and the drive motor 19 can drive the transmission shaft 110 to rotate. Since the baffle 114 is fixedly connected to the drive shaft 14, the baffle 15 is fixedly connected to the drive shaft 14. The drive shaft 110 is mounted in a ring between the exhaust plate 111 and the intake plate 112 with its center as the reference. The outer edge of the exhaust plate 111 is provided with notches distributed in a ring with the center of the exhaust plate 111 as the reference. The intake plate 112 is provided with circular openings distributed in a ring with the center of the intake plate 112 as the reference near the center. When the exhaust plate 111, the intake plate 112 and the baffle 114 rotate, the air between the exhaust plate 111 and the intake plate 112 will move towards the notch at the outer edge of the exhaust plate 111 under the action of the baffle 114 and move forward through the notch. The air behind the intake plate 112 will enter between the exhaust plate 111 and the intake plate 112 through the circular opening of the intake plate 112, so that the air is compressed three times and moves backward, thereby generating airflow inside the ventilation pipe 1.

[0029] In use, the stepper motor 13 is model 57CME13, the smoke sensor 16 is model GQQ5, the PLC controller 17 is model 2080DNET20, and the drive motor 19 is model YBDF2. The ventilation ducts 1 are interconnected via a pipe structure to form an exhaust passage. The baffle 15 is disc-shaped, and its outer diameter fits into the inner wall of the ventilation duct 1. The smoke sensor 16 monitors the smoke concentration inside the ventilation duct 1 and transmits the monitoring data to the PLC controller 17. After comparing the data with a threshold, the PLC controller 17 sends a control signal to the stepper motor 13 to adjust the rotation angle of the baffle 15, changing the baffle 15 in the upper branch of the ventilation duct 1 and the front side of the ventilation duct 1 from a horizontal state to a vertical state. At this time, airflow can enter the exhaust pipe 12 through the upper branch of the ventilation duct 1. The exhaust pipes 12 are connected by a pipe structure to form a pipe for exhausting smoke, thereby preventing smoke from spreading to other areas through the pipe structure. The drive motor 19 can drive the transmission shaft 110 to rotate. Since the baffle 114 is installed in a ring between the exhaust plate 111 and the intake plate 112 with the center of the transmission shaft 110 as the reference, the outer edge of the exhaust plate 111 is provided with notches distributed in a ring with the center of the exhaust plate 111 as the reference, and the intake plate 112 is provided with circular openings distributed in a ring with the center of the intake plate 112 as the reference near the center. When the exhaust plate 111, the intake plate 112 and the baffle 114 rotate, the air between the exhaust plate 111 and the intake plate 112 will move towards the notch at the outer edge of the exhaust plate 111 under the drive of the baffle 114 and move forward through the notch. The air behind the intake plate 112 will enter between the exhaust plate 111 and the intake plate 112 through the circular opening of the intake plate 112, so that the air is compressed three times and moves backward, thereby generating airflow inside the ventilation pipe 1. This method can drive the airflow at each air inlet of the pipe to ensure the gas flow rate inside the ventilation device.

[0030] 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 device for easily guiding flue gas flow, characterized in that, include: A ventilation duct (1) is provided, with a fixing bracket (11) fixedly installed on its outer side. A smoke exhaust pipe (12) is fixedly installed above the ventilation duct (1). A stepper motor (13) is fixedly installed inside the fixing bracket (11). A drive shaft (14) is inserted inside the ventilation duct (1). A partition (15) is fixedly installed at the center of the drive shaft (14). A smoke sensor (16) and a PLC controller (17) are fixedly installed on the inner wall of the ventilation duct (1). A connecting frame (18) is fixedly installed inside the connecting frame (18), and a drive motor (19) is fixedly installed inside the connecting frame (18). A transmission shaft (110) is fixedly installed at the end of the shaft of the drive motor (19). An exhaust plate (111) and an intake plate (112) are mounted on the outer fixed rod of the transmission shaft (110). A bearing (113) is fixedly installed on the outer side of the intake plate (112) and the exhaust plate (111). A baffle (114) is fixedly installed between the intake plate (112) and the exhaust plate (111).

2. A mine ventilation device for guiding flue gas flow according to claim 1, characterized in that: The ventilation pipe (1) has tubular branches on its lower rear side and upper front side. The fixing frame (11) is installed on the outer side of the upper front branch and the outer side of the front end of the ventilation pipe (1). The stepper motor (13) is symmetrically installed on the left and right sides of the fixing frame (11) with the center of the fixing frame (11) as the reference.

3. A mine ventilation device for guiding flue gas flow according to claim 1, characterized in that: The two ends of the drive shaft (14) pass through the ventilation pipe (1) and are fixedly connected to the rotating shafts of the stepper motors (13) on the left and right sides of the fixed frame (11). The partition (15) is disc-shaped. The upper branch of the ventilation pipe (1) and the partition (15) inside the front side are kept horizontal by default.

4. A mine ventilation device for guiding flue gas flow according to claim 1, characterized in that: The connecting frame (18) is symmetrically installed on the outside of the drive motor (19) with the center of the drive motor (19) as the reference. The drive motor (19) is fixedly connected to the ventilation pipe (1) through the connecting frame (18).

5. A mine ventilation device for guiding flue gas flow according to claim 1, characterized in that: The front end of the drive shaft (110) is fixedly connected to the rotating shaft of the drive motor (19), and the baffle (114) is installed in a ring between the exhaust plate (111) and the intake plate (112) with the center of the drive shaft (110) as the reference.

6. A mine ventilation device for guiding flue gas flow according to claim 1, characterized in that: The exhaust plate (111) has notches arranged in a ring around the center of the exhaust plate (111) on its outer edge, and the intake plate (112) has circular openings arranged in a ring around the center of the intake plate (112) near the center.

7. A mine ventilation device for guiding flue gas flow according to claim 1, characterized in that: The exhaust plate (111) and the air intake plate (112) are rotatably connected to the ventilation pipe (1) through the bearing (113). There are three sets of exhaust plates (111), air intake plates (112) and baffles (114), and the distance between each set is consistent.

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