External discharging air locking mechanism of vertical mill

Abstract

The utility model relates to the technical field of discharging of vertical mills, in particular to an external discharging air locking mechanism of a vertical mill, which adopts the technical scheme that the external discharging air locking mechanism comprises a discharging pipe, a transmission mechanism and a detection mechanism, first rotating shafts which are symmetrically distributed in an array are rotatably mounted in the discharging pipe, and an upper valve plate is mounted between the first rotating shafts; second rotating shafts distributed in an array mode are rotationally installed in the discharging pipe, a lower valve plate is installed between the second rotating shafts, the transmission mechanism comprises a driving gear, a first driven gear, a second driven gear and a third driven gear, the first rotating shaft extends out of the front end of the discharging pipe, the driving gear is installed at the tail end of the extending first rotating shaft, and the third driven gear is installed at the tail end of the second rotating shaft. The first driven gear, the second driven gear and the third driven gear are all rotationally installed at the front end of the discharging pipe, and the two detection mechanisms are symmetrically distributed. The automatic discharging device has the advantages that automatic discharging can be carried out according to the material quantity, the vertical mill can work conveniently, manual operation is not needed, and manpower consumption is reduced.

Description

Technical Field

[0001] This utility model relates to the field of vertical mill discharge technology, specifically a vertical mill external discharge airlock mechanism. Background Technology

[0002] Vertical roller mills are ideal large-scale grinding equipment, widely used in industries such as cement, power, metallurgy, chemical, and non-metallic minerals. They integrate crushing, drying, grinding, grading, and conveying, offering high production efficiency and capable of grinding lumpy, granular, and powdery raw materials into the required powdered materials.

[0003] In the operation of vertical mills, a small portion of material is thrown out of the grinding disc before it is ground, requiring the use of a discharge airlock mechanism for discharge. The discharge airlock mechanism is mainly a double-layer flap valve. Currently, the discharge airlock mechanism of the vertical mill requires manual operation during discharge, which cannot guarantee the discharge volume each time. If too much material accumulates, it will affect the use of the vertical mill. If the material is too little, it will consume manpower and increase the workload of the staff. Utility Model Content

[0004] The purpose of this utility model is to provide an external discharge airlock mechanism for vertical mills, which has the advantages of automatic material discharge according to the material quantity, convenient operation of vertical mills, no need for manual operation, and reduced labor consumption, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vertical mill external discharge airlock mechanism, comprising a discharge pipe, a transmission mechanism, and a detection mechanism. A first rotating shaft arranged in an array is rotatably installed inside the discharge pipe. An upper valve plate is installed between the first rotating shafts, and two upper valve plates are symmetrically distributed. A second rotating shaft arranged in an array is rotatably installed inside the discharge pipe. A lower valve plate is installed between the second rotating shafts, and two lower valve plates are symmetrically distributed.

[0006] The transmission mechanism includes:

[0007] The device includes a drive gear, a first driven gear, a second driven gear, and a third driven gear. The first rotating shaft extends out of the front end of the discharge pipe. The drive gear is installed at the end of the extended first rotating shaft. The first driven gear, the second driven gear, and the third driven gear are all rotatably installed at the front end of the discharge pipe.

[0008] The testing facility consists of two units that are symmetrically distributed.

[0009] Preferably, both the upper and lower ends of the discharge pipe are open.

[0010] Preferably, the rear end of the discharge pipe is equipped with symmetrically distributed drive devices, and the main shaft of the drive devices is connected to the axis of the first rotating shaft.

[0011] Preferably, the first driven gear is located below the driving gear, the second driven gear is located below the first driven gear, the second driven gear is located below the third driven gear, the first driven gear is meshed with the driving gear, the second driven gear is meshed with the first driven gear, and the third driven gear is meshed with the second driven gear.

[0012] Preferably, the testing organization includes:

[0013] The mounting plate and the detection rod are mounted on the side of the discharge pipe. A hydraulic device is mounted on the lower end of the mounting plate. A pressure sensor is mounted at the end of the hydraulic rod of the hydraulic device. The detection rod is mounted at the center of the front end of the drive gear, and the end of the detection rod contacts the lower end of the pressure sensor.

[0014] Preferably, a PLC controller is installed at the front end of the discharge pipe, and the PLC controller is electrically connected to the drive equipment, hydraulic equipment and pressure sensor respectively.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: The material located at the upper end of the upper valve plate will exert downward pressure on the upper valve plate, causing the drive gear to rotate, which in turn will exert an upward force on the detection rod. The pressure sensor can detect the magnitude of the upward force of the detection rod, thereby detecting the amount of material on the upper valve plate. When the amount of material reaches the discharge standard, the hydraulic equipment will work to raise the pressure sensor, which can release the limit on the detection rod, making it easier for the drive gear to rotate. The weight of the material itself will cause the upper valve plate to flip downward and open for material discharge. Automatic material discharge can be performed according to the amount of material, which is convenient for the operation of the vertical mill and eliminates the need for manual operation, reducing labor consumption. Attached Figure Description

[0016] Figure 1 This is a frontal cross-sectional view of the present invention.

[0017] Figure 2 This is a front view structural diagram of the present utility model;

[0018] Figure 3 This is a top view of the structure of this utility model;

[0019] Figure 4 This is a partial cross-sectional view of the present invention.

[0020] The reference numerals and names in the figure are as follows:

[0021] 101. Discharge pipe; 102. PLC controller; 103. First rotating shaft; 104. Upper valve plate; 105. Lower valve plate; 106. Second rotating shaft; 107. Drive device; 201. Transmission mechanism; 202. Drive gear; 203. First driven gear; 204. Second driven gear; 205. Third driven gear; 301. Detection mechanism; 302. Detection rod; 303. Mounting plate; 304. Hydraulic equipment; 305. Pressure sensor. Detailed Implementation

[0022] 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.

[0023] Example 1

[0024] Please see Figures 1 to 4 One embodiment of this utility model is a vertical mill external discharge airlock mechanism, comprising:

[0025] The system includes a discharge pipe 101, a transmission mechanism 201, and a detection mechanism 301. A first rotating shaft 103, symmetrically arranged in an array, is rotatably mounted inside the discharge pipe 101. An upper valve plate 104 is installed between the first rotating shafts 103, and two upper valve plates 104 are symmetrically arranged. A second rotating shaft 106, also symmetrically arranged in an array, is rotatably mounted inside the discharge pipe 101. A lower valve plate 105, symmetrically arranged, is installed between the second rotating shafts 106.

[0026] The transmission mechanism 201 includes:

[0027] The first driven gear 202, the first driven gear 203, the second driven gear 204, and the third driven gear 205 are provided. The first rotating shaft 103 extends out of the front end of the discharge pipe 101. The drive gear 202 is installed at the end of the extended first rotating shaft 103. The first driven gear 203, the second driven gear 204, and the third driven gear 205 are all rotatably installed at the front end of the discharge pipe 101.

[0028] The detection mechanism 301 has two components that are symmetrically distributed.

[0029] In this embodiment, during use, the material is located at the upper end of the upper valve plate 104. The material exerts downward pressure on the upper valve plate 104 and upward force on the detection rod 302. With the cooperation of the pressure sensor 305, the detection mechanism 301 can detect the amount of material on the upper valve plate 104. When the amount of material reaches the discharge standard, the pressure sensor 305 rises, and the weight of the material causes the upper valve plate 104 to flip and open downwards. When the upper valve plate 104 flips and opens, the lower valve plate 105 flips and closes upwards. At the same time, when the upper valve plate 104 flips and opens downwards, it can cause the drive gear 202 to rotate. The driving gear 202 can drive the first driven gear 203 to rotate, the first driven gear 203 can drive the second driven gear 204 to rotate, and the second driven gear 204 can drive the third driven gear 205 to rotate. This can cause the lower valve plate 105 to flip upward and close, achieving the purpose of locking the air during material discharge. When the material on the upper valve plate 104 is discharged, the first rotating shaft 103 is rotated by the operation of the driving device 107, and the upper valve plate 104 can flip upward and close again. At this time, the lower valve plate 105 will flip downward and open, so that the material can be discharged from the discharge pipe 101.

[0030] Furthermore,

[0031] The upper and lower ends of the discharge pipe 101 are both open.

[0032] Furthermore,

[0033] The rear end of the discharge pipe 101 is equipped with symmetrically distributed drive devices 107, and the main shaft of the drive device 107 is connected to the axis of the first rotating shaft 103.

[0034] The first rotating shaft 103 can be rotated by the operation of the drive device 107.

[0035] Furthermore,

[0036] The first driven gear 203 is located below the driving gear 202, the second driven gear 204 is located below the first driven gear 203, and the second driven gear 204 is located below the third driven gear 205. The first driven gear 203 is meshed with the driving gear 202, the second driven gear 204 is meshed with the first driven gear 203, and the third driven gear 205 is meshed with the second driven gear 204.

[0037] When the drive gear 202 rotates, it can drive the first driven gear 203 to rotate. The first driven gear 203 can drive the second driven gear 204 to rotate. The second driven gear 204 can drive the third driven gear 205 to rotate, thereby enabling the lower valve plate 105 to flip during transmission.

[0038] Example 2

[0039] Please see Figures 1 to 4 This utility model provides one embodiment: a vertical mill external discharge airlock mechanism, which, compared to embodiment one, further includes:

[0040] The testing organization 301 includes:

[0041] Mounting plate 303 and detection rod 302 are mounted on the side end of discharge pipe 101. Hydraulic device 304 is mounted on the lower end of mounting plate 303. Pressure sensor 305 is mounted at the end of hydraulic rod of hydraulic device 304. Detection rod 302 is mounted at the center of front end of drive gear 202. The end of detection rod 302 is in contact with the lower end of pressure sensor 305.

[0042] In this embodiment, during detection, the material located at the upper end of the upper valve plate 104 exerts downward pressure on the upper valve plate 104, causing the drive gear 202 to rotate, which in turn exerts an upward force on the detection rod 302. The pressure sensor 305 can detect the magnitude of the upward force on the detection rod 302, thereby detecting the amount of material on the upper valve plate 104. When the amount of material reaches the discharge standard, the hydraulic device 304 operates to raise the pressure sensor 305, which can release the limit on the detection rod 302, allowing the drive gear 202 to rotate easily. The weight of the material itself will cause the upper valve plate 104 to open for material discharge. After discharge, the detection rod 302 returns to its original position, and the pressure sensor 305 descends to re-limit the detection rod 302.

[0043] Furthermore,

[0044] A PLC controller 102 is installed at the front end of the discharge pipe 101. The PLC controller 102 is electrically connected to the drive device 107, the hydraulic device 304 and the pressure sensor 305 respectively.

[0045] By writing the corresponding control program into the PLC controller 102, the equipment in this utility model can be automatically controlled by the PLC controller 102.

[0046] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A vertical mill external discharge airlock mechanism, comprising a discharge pipe (101), a transmission mechanism (201), and a detection mechanism (301), characterized in that: The discharge pipe (101) is rotatably installed with a first rotating shaft (103) arranged in an array. An upper valve plate (104) is installed between the first rotating shafts (103). The upper valve plate (104) has two symmetrically distributed components. The discharge pipe (101) is rotatably installed with a second rotating shaft (106) arranged in an array. A lower valve plate (105) is installed between the second rotating shafts (106). The lower valve plate (105) has two symmetrically distributed components. The transmission mechanism (201) includes: The drive gear (202), the first driven gear (203), the second driven gear (204) and the third driven gear (205) are provided. The first rotating shaft (103) extends out of the front end of the discharge pipe (101). The drive gear (202) is installed at the end of the extended first rotating shaft (103). The first driven gear (203), the second driven gear (204) and the third driven gear (205) are all rotatably installed at the front end of the discharge pipe (101). The testing unit (301) has two units that are symmetrically distributed.

2. The vertical mill external discharge airlock mechanism according to claim 1, characterized in that: The upper and lower ends of the discharge pipe (101) are both open.

3. The vertical mill external discharge airlock mechanism according to claim 1, characterized in that: The rear end of the discharge pipe (101) is equipped with symmetrically distributed drive devices (107), and the main shaft of the drive device (107) is connected to the axis of the first rotating shaft (103).

4. The vertical mill external discharge airlock mechanism according to claim 1, characterized in that: The first driven gear (203) is located below the driving gear (202), the second driven gear (204) is located below the first driven gear (203), the second driven gear (204) is located below the third driven gear (205), the first driven gear (203) is meshed with the driving gear (202), the second driven gear (204) is meshed with the first driven gear (203), and the third driven gear (205) is meshed with the second driven gear (204).

5. The vertical mill external discharge airlock mechanism according to claim 1, characterized in that: The testing organization (301) includes: The mounting plate (303) and the detection rod (302) are mounted on the side of the discharge pipe (101). A hydraulic device (304) is mounted on the lower end of the mounting plate (303). A pressure sensor (305) is mounted at the end of the hydraulic rod of the hydraulic device (304). The detection rod (302) is mounted at the center of the front end of the drive gear (202). The end of the detection rod (302) is in contact with the lower end of the pressure sensor (305).

6. The vertical mill external discharge airlock mechanism according to claim 1, characterized in that: A PLC controller (102) is installed at the front end of the discharge pipe (101). The PLC controller (102) is electrically connected to the drive device (107), the hydraulic device (304), and the pressure sensor (305).

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