A kiln tail air lock device

Abstract

This application provides a kiln tail airlock device, relating to the technical field of airlock devices. It includes a housing, a first flap, a second flap, a first drive mechanism, and a second drive mechanism. The upper side of the housing has a feed inlet with a feed hopper at the inlet, and a discharge outlet at the lower end of the housing. Both the first and second flaps are located inside the housing. In use, the kiln tail airlock device provides that the first drive mechanism drives the first flap away from the feed inlet, allowing material from the feed hopper to enter the housing through the feed inlet. At this time, the second flap blocks the discharge outlet. After feeding is complete, the first drive mechanism drives the first flap closer to the feed inlet, blocking it again. The second drive mechanism then drives the second flap to rotate, allowing material to fall through the area between the second flap and the housing. Through intermittent feeding, airless flow between the feed inlet and discharge outlet is achieved, improving the smoothness of material discharge and preventing blockages.

Description

Technical Field

[0001] This application relates to the field of airlock device technology, and more specifically, to a kiln tail airlock device. Background Technology

[0002] The airlock valve is an airlock feeding device in the cyclone discharge pipe of the cement kiln tail preheater. When the material does not fall into the airlock valve, the valve plate of the airlock valve will close to prevent air from passing through. When the material falls into the airlock valve, the valve plate of the airlock valve will open appropriately to minimize the air passing through when the material passes through.

[0003] The prior art CN214610402U discloses a double-flip airlock device for kiln tail gas in a cement production line, including a box, a gravity component, an airlock channel, and two airlock plates. The gravity component is located outside the box, while the airlock channel and airlock plates are located inside the box. When the weight of the material is less than the weight of the gravity block, the gravity block presses against the rotating shaft, causing the airlock plates to press against the inner wall of the airlock channel, preventing the material from being conveyed. When the weight of the material is greater than the weight of the gravity block, the material presses against the airlock plates and moves downward, causing the gravity block to rotate upward, and the material begins to be conveyed downward. During unloading, the two airlock plates adopt an "open and close" mode to achieve windless flow between the inlet and outlet.

[0004] In the existing technology CN214610402U, the weight of the material on the air lock plate needs to reach a certain value during unloading to ensure that the material can smoothly push the air lock plate open. However, as the unloading operation continues, the weight of the material on the air lock plate gradually decreases. Under the influence of the gravity block, the air lock plate will gradually close, affecting the smoothness of unloading. At the same time, some material may get stuck between the air lock plate and the inner wall of the box, resulting in air leakage. Summary of the Invention

[0005] The purpose of this application is to provide a kiln tail airlock device that can solve the technical problem of blockage during material feeding.

[0006] This application provides a kiln tail airlock device, including a housing, a first flap, a second flap, a first driving mechanism, and a second driving mechanism. The upper side of the housing has a feed inlet with a feed hopper. The lower end of the housing has a discharge outlet. The first flap and the second flap are both located inside the housing. The first driving mechanism and the second driving mechanism are both located on the housing. The first driving mechanism drives the first flap to rotate, thereby blocking or opening the feed inlet. The second flap is located below the first flap, and the second driving mechanism drives the second flap to rotate, thereby blocking the discharge outlet.

[0007] Preferably, a first sealing ring is provided on the side of the first flap near the feed inlet.

[0008] Preferably, the housing has a first opening, a mounting block is provided at the first opening, the mounting block is fixed to the outer wall of the housing by bolts, a second sealing ring is provided between the mounting block and the housing, and the first driving mechanism is provided on the mounting block.

[0009] Preferably, the first driving mechanism includes a first cylinder and a first connecting rod. The first cylinder is mounted on the mounting block, one end of the first connecting rod is rotatably connected to the telescopic end of the first cylinder, and the other end of the first connecting rod is rotatably connected to the first flap.

[0010] Preferably, a groove is provided on the outer wall of the housing, and the second sealing ring is disposed in the groove.

[0011] Preferably, the housing is provided with a second opening, a mounting cylinder is provided at the second opening, and the second drive mechanism is provided on the mounting cylinder.

[0012] Preferably, the second drive mechanism includes a second cylinder and a second connecting rod. The second cylinder is disposed on the mounting cylinder, one end of the second connecting rod is connected to the telescopic end of the second cylinder, and the other end of the second connecting rod is rotatably connected to the second flap.

[0013] Preferably, the mounting cylinder includes a first cylinder and a second cylinder. The first cylinder is disposed on the outer wall of the housing and is connected to the flange of the second cylinder. The second driving mechanism is disposed on the second cylinder. One end of the second flap is rotatably installed in the second cylinder, and the other end of the second flap passes through the second opening and enters the interior of the housing.

[0014] Preferably, the feed hopper is provided with a first flange, and the lower end of the housing is provided with a second flange.

[0015] The beneficial effects of this utility model are:

[0016] When the kiln tail airlock device provided in this application is in use, the first drive mechanism drives the first flap away from the feed inlet, and the material inside the feed hopper enters the interior of the box through the feed inlet. At this time, the second flap is used to block the discharge port. After the feeding is completed, the first drive mechanism drives the first flap closer to the feed inlet and uses the first flap to block the feed inlet. Then, the second drive mechanism drives the second flap to rotate, and the material falls through the area between the second flap and the box. Through intermittent feeding, windless flow between the feed inlet and the discharge port is achieved, and the smoothness of material discharge is improved, avoiding material blockage. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

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

[0019] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;

[0020] Figure 3 This is a schematic diagram of the external structure of this utility model.

[0021] The reference numerals in the attached figures are as follows:

[0022] 1. Box body; 2. First flap; 3. Second flap; 4. First drive mechanism; 5. Second drive mechanism; 6. Feed inlet; 7. Feed hopper; 8. Discharge port; 9. First sealing ring; 10. First opening; 11. Mounting block; 12. Second sealing ring; 13. First cylinder; 14. First connecting rod; 15. Groove; 16. Second opening; 17. Mounting cylinder; 18. Second cylinder; 19. Second connecting rod; 20. First cylinder; 21. Second cylinder; 22. First flange; 23. Second flange. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application 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 on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] Example

[0030] like Figures 1-3 As shown in the figure, this application embodiment provides a kiln tail airlock device, including a box body 1, a first flap 2, a second flap 3, a first drive mechanism 4, and a second drive mechanism 5. A feed inlet 6 is provided at the upper side of the box body 1, and a feed hopper 7 is provided at the feed inlet 6. A discharge port 8 is provided at the lower end of the box body 1. The first flap 2 and the second flap 3 are both located inside the box body 1. The first drive mechanism 4 and the second drive mechanism 5 are both located on the box body 1. The first drive mechanism 4 drives the first flap 2 to rotate so that the first flap 2 blocks or opens the feed inlet 6. The second flap 3 is located below the first flap 2. The second drive mechanism 5 drives the second flap 3 to rotate so that the second flap 3 blocks the discharge port 8.

[0031] In use, the first drive mechanism 4 drives the first flap 2 to rotate, moving the first flap 2 away from the feed inlet 6. After the material is fed into the feed hopper 7, the material in the feed hopper 7 enters the interior of the box 1 through the feed inlet 6 and falls onto the second flap 3. At this time, the second flap 3 blocks the discharge port 8. After feeding is completed, the first drive mechanism 4 drives the first flap 2 to move closer to the feed inlet 6 and uses the first flap 2 to block the feed inlet 6. Then, the second drive mechanism 5 drives the second flap 3 to rotate, and the material falls through the area between the second flap 3 and the box 1. Through intermittent feeding, windless flow between the feed inlet 6 and the discharge port 8 is achieved, while improving the smoothness of material discharge and avoiding material blockage.

[0032] In this embodiment, a first sealing ring 9 is provided on the side of the first flap 2 near the feed inlet 6. The first sealing ring 9 can improve the sealing effect between the first flap 2 and the feed inlet 6.

[0033] In this embodiment, a first opening 10 is provided on the housing 1, and a mounting block 11 is provided at the first opening 10. The mounting block 11 is fixed to the outer wall of the housing 1 by bolts. A second sealing ring 12 is provided between the mounting block 11 and the housing 1. A first driving mechanism 4 is provided on the mounting block 11. The second sealing ring 12 is used to improve the sealing effect between the mounting block 11 and the housing 1. The mounting block 11 can be disassembled by bolt connection so that the first driving mechanism 4 and the first flip plate 2 can be inspected and maintained regularly.

[0034] In this embodiment, the first driving mechanism 4 includes a first cylinder 13 and a first connecting rod 14. The first cylinder 13 is mounted on the mounting block 11. One end of the first connecting rod 14 is rotatably connected to the telescopic end of the first cylinder 13, and the other end of the first connecting rod 14 is rotatably connected to the first flap 2. When the first flap 2 is needed to block the feed inlet 6, the first cylinder 13 extends and pushes the first connecting rod 14. The first connecting rod 14 pushes the first flap 2 closer to the feed inlet 6, thereby blocking the feed inlet 6. When the first flap 2 needs to be moved away from the feed inlet 6, the first cylinder 13 retracts and drives the first connecting rod 14 to move. The first connecting rod 14 drives the first flap 2 away from the feed inlet 6.

[0035] In this embodiment, a groove 15 is provided on the outer wall of the housing 1, and the second sealing ring 12 is disposed in the groove 15. The groove 15 facilitates the installation of the second sealing ring 12.

[0036] In this embodiment, a second opening 16 is provided on the housing 1, an installation cylinder 17 is provided at the second opening 16, and a second drive mechanism 5 is provided on the installation cylinder 17.

[0037] In this embodiment, the second drive mechanism 5 includes a second cylinder 18 and a second connecting rod 19. The second cylinder 18 is mounted on the mounting cylinder 17. One end of the second connecting rod 19 is connected to the telescopic end of the second cylinder 18, and the other end of the second connecting rod 19 is rotatably connected to the second flap 3. When it is necessary to seal the inside of the box 1, the second cylinder 18 extends and pushes the second connecting rod 19. The second connecting rod 19 pushes the second flap 3 to rotate, and the second flap 3 seals the inside of the box 1. When it is necessary to discharge material, the second cylinder 18 retracts and drives the second connecting rod 19 to move. The second connecting rod 19 drives the second flap 3 to rotate, and the material falls through the area between the second flap 3 and the box 1.

[0038] In this embodiment, the mounting cylinder 17 includes a first cylinder 20 and a second cylinder 21. The first cylinder 20 is disposed on the outer wall of the housing 1. The first cylinder 20 is flange-connected to the second cylinder 21. The second drive mechanism 5 is disposed on the second cylinder 21. One end of the second flap 3 is rotatably installed inside the second cylinder 21. The other end of the second flap 3 passes through the second opening 16 and enters the interior of the housing 1. The mounting cylinder 17 adopts a split structure, which allows for the inspection and maintenance of the second drive mechanism 5 and the second flap 3 after the second cylinder 21 is removed. The flange connection method can ensure the sealing effect at the connection between the first cylinder 20 and the second cylinder 21.

[0039] In this embodiment, a first flange 22 is provided on the feed hopper 7, which can be connected to the upstream equipment, and a second flange 23 is provided at the lower end of the housing 1, which can be connected to the downstream equipment.

[0040] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A kiln tail airlock device, characterized in that: The device includes a housing, a first flap, a second flap, a first drive mechanism, and a second drive mechanism. The upper side of the housing has a feed inlet with a feed hopper. The lower end of the housing has a discharge outlet. Both the first and second flaps are located inside the housing. Both the first and second drive mechanisms are located on the housing. The first drive mechanism drives the first flap to rotate, blocking or opening the feed inlet. The second flap is located below the first flap, and the second drive mechanism drives the second flap to rotate, blocking the discharge outlet.

2. The kiln tail airlock device according to claim 1, characterized in that: A first sealing ring is provided on the side of the first flap near the feed inlet.

3. The kiln tail airlock device according to claim 1, characterized in that: The housing has a first opening, and a mounting block is provided at the first opening. The mounting block is fixed to the outer wall of the housing by bolts. A second sealing ring is provided between the mounting block and the housing. The first driving mechanism is provided on the mounting block.

4. The kiln tail airlock device according to claim 3, characterized in that: The first drive mechanism includes a first cylinder and a first connecting rod. The first cylinder is mounted on the mounting block. One end of the first connecting rod is rotatably connected to the telescopic end of the first cylinder, and the other end of the first connecting rod is rotatably connected to the first flap.

5. The kiln tail airlock device according to claim 3, characterized in that: A groove is provided on the outer wall of the box, and the second sealing ring is disposed in the groove.

6. The kiln tail airlock device according to claim 1, characterized in that: The housing has a second opening, a mounting cylinder is provided at the second opening, and the second drive mechanism is provided on the mounting cylinder.

7. The kiln tail airlock device according to claim 6, characterized in that: The second drive mechanism includes a second cylinder and a second connecting rod. The second cylinder is mounted on the mounting cylinder. One end of the second connecting rod is connected to the telescopic end of the second cylinder, and the other end of the second connecting rod is rotatably connected to the second flap.

8. The kiln tail airlock device according to claim 6, characterized in that: The mounting cylinder includes a first cylinder and a second cylinder. The first cylinder is disposed on the outer wall of the box and is connected to the flange of the second cylinder. The second driving mechanism is disposed on the second cylinder. One end of the second flap is rotatably installed in the second cylinder, and the other end of the second flap passes through the second opening and enters the interior of the box.

9. The kiln tail airlock device according to claim 1, characterized in that: The feed hopper is provided with a first flange, and the lower end of the box is provided with a second flange.

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