Rotary distributing device for lime kiln

Abstract

The utility model discloses a rotary distributing device for a lime kiln, which relates to the technical field of rotary distributing devices and comprises a support, a rotary charging barrel driven by a driving mechanism to rotate is rotatably connected to the middle of the support, a feeding hopper is arranged at the top end of the rotary charging barrel, and a gate valve for controlling on-off of materials is arranged between the feeding hopper and the rotary charging barrel. The bottom end of the rotary charging barrel is rotationally connected with a rotary chute, the axis of the rotary charging barrel is rotationally connected with a threaded barrel, the interior of the threaded barrel is in threaded connection with a connecting rod, one end of the connecting rod extends to the outer side of the threaded barrel and is in sliding connection with the rotary chute, and the top end of the threaded barrel is fixedly connected with a strip-shaped block. The gate valve comprises a movable gate plate, and a strip-shaped groove matched with the strip-shaped block is formed in the middle of the movable gate plate. The rotary distributing device for the lime kiln does not need an additional driving mechanism, and is simple in structure and convenient to arrange.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary distributors, in particular to a rotary distributor for a lime kiln. Background Technique

[0002] In lime production, reasonable distribution of materials in the lime kiln is an important prerequisite for lime production. Reasonable material distribution is conducive to forming a better material shape, material quantity, temperature, and air flow distribution in the kiln. Currently, rotary distributors are widely used in the material distribution of lime kiln production. To adjust the material distribution range, traditional distributors usually use a drive mechanism to drive the chute to rotate and adjust its tilt angle.

[0003] For example, in the Chinese utility model patent application number: CN201120307906.X, a rotary distributor for a lime kiln with a particularly large kiln diameter is disclosed. It drives the chute to rotate and adjust its tilt angle through an electric push rod and multiple connecting rods. Since the electric push rod is connected to the rotating chute through a connecting rod and the electric push rod will rotate with the chute, it is necessary to rotatably connect it to the support and ensure that its rotation does not affect its power supply, resulting in inconvenient layout.

[0004] Therefore, it is very necessary to propose a rotary distributor for a lime kiln to solve the above problems. Content of the Utility Model

[0005] (I) Technical Problems to be Solved

[0006] The purpose of the utility model is to provide a rotary distributor for a lime kiln with convenient layout to solve the existing problems mentioned in the above background technique.

[0007] (II) Technical Solutions

[0008] To achieve the above purposes, the utility model is realized through the following technical solutions: A rotary distributor for a lime kiln includes a support. A rotary drum driven to rotate by a drive mechanism is rotatably connected to the middle of the support. A feeding hopper is provided at the top of the rotary drum. A gate valve for controlling the on-off of materials is provided between the feeding hopper and the rotary drum. A rotary chute is rotatably connected to the bottom of the rotary drum. A threaded cylinder is rotatably connected to the axis of the rotary drum. A connecting rod is threadedly connected to the inside of the threaded cylinder. One end of the connecting rod extends to the outside of the threaded cylinder and is slidably connected to the rotary chute. A strip-shaped block is fixedly connected to the top of the threaded cylinder;

[0009] The gate valve includes a movable gate plate. A strip-shaped groove adapted to the strip-shaped block is provided in the middle of the movable gate plate.

[0010] Preferably, a support frame is fixedly connected to the inside of the rotary drum. The threaded cylinder is rotatably connected to the support frame through a bearing. A conical cover is provided above the bearing. The conical cover is fixedly connected to the outside of the threaded cylinder.

[0011] Preferably, a connecting plate is fixedly connected to the inner side of the rotary chute. A strip-shaped hole is formed in the middle of the connecting plate along the length direction of the rotary chute. A movable shaft penetrates through the middle of the strip-shaped hole, and the movable shaft is fixedly connected to the connecting rod.

[0012] Preferably, a stopper is fixedly connected to the outer side of the rotary drum. A proximity switch is fixedly connected to the position of the bracket corresponding to the stopper.

[0013] Preferably, the gate valve further includes a gate frame. A circular hole for communicating the feeding hopper and the rotary drum is vertically provided in the middle of the gate frame. A rectangular through hole for limiting the movable gate is horizontally provided in the middle of the gate frame. An elastic sealing block is fixedly connected to the position of the gate frame corresponding to the strip-shaped groove.

[0014] Preferably, a threaded section and a straight cylinder section are provided inside the threaded cylinder. An external thread is provided at one end of the connecting rod located inside the threaded cylinder.

[0015] Preferably, an elastic sealing cylinder is fixedly connected to the outer side of the connecting rod. The elastic sealing cylinder is located in the straight cylinder section of the threaded cylinder.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present utility model provides a rotary distributor for a lime kiln, having the following beneficial effects:

[0018] For this rotary distributor of the lime kiln, by providing a threaded cylinder and a connecting rod, and by providing a strip-shaped groove for limiting a strip-shaped block on the movable gate of the gate valve, when adjusting the inclination angle of the rotary chute, the movable gate limits the threaded cylinder, enabling the connecting rod to rotate relative to the threaded cylinder, and the connecting rod drives the rotary chute to adjust the angle. It does not require an additional driving mechanism, and at the same time, its structure is simple and convenient to arrange. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic cross-sectional view of the structure of the present utility model;

[0020] Figure 2 is the present utility model Figure 1 enlarged view at A;

[0021] Figure 3 is the present utility model Figure 1 enlarged view at B;

[0022] Figure 4 is a schematic cross-sectional view of the threaded cylinder of the present utility model.

[0023] In the figure: 1. Loading hopper; 2. Gate valve; 3. Rotary drum; 4. Rotating shaft; 6. Rotary chute; 8. Support; 9. Movable gate; 10. Strip-shaped groove; 11. Gate frame; 12. Elastic sealing block; 13. Strip-shaped block; 14. Threaded cylinder; 15. Support frame; 16. Connecting rod; 17. Motor; 18. Gear ring; 19. Gear; 20. Slewing bearing; 21. Connecting plate; 22. Movable shaft; 23. Strip-shaped hole; 24. Threaded section; 25. Conical cover; 26. External thread; 27. Straight cylinder section; 28. Stop block; 29. Proximity switch; 30. Elastic sealing cylinder. Detailed implementation manner

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0025] Please refer to Figures 1-4 As shown, a rotary distributor for a lime kiln includes a support 8. A rotary drum 3 driven to rotate by a driving mechanism is rotatably connected to the middle of the support 8. A loading hopper 1 is provided at the top of the rotary drum 3. A gate valve 2 for controlling the on-off of materials is provided between the loading hopper 1 and the rotary drum 3. The bottom end of the rotary drum 3 is rotatably connected to a rotary chute 6 through a rotating shaft 4. A threaded cylinder 14 is rotatably connected to the axis of the rotary drum 3. A connecting rod 16 is threadedly connected inside the threaded cylinder 14. One end of the connecting rod 16 extends to the outside of the threaded cylinder 14 and is slidably connected to the rotary chute 6. A strip-shaped block 13 is fixedly connected to the top end of the threaded cylinder 14; the gate valve 2 includes a movable gate 9. A strip-shaped groove 10 adapted to the strip-shaped block 13 is provided in the middle of the movable gate 9.

[0026] By providing a strip-shaped groove 10 below the movable gate 9, when the movable gate 9 is closed, the strip-shaped block 13 is inserted into the strip-shaped groove 10. Under their combined action, the threaded cylinder 14 is limited. Then, the rotary drum 3 is driven to rotate by the driving mechanism, and the rotary chute 6 rotates horizontally following the rotary drum 3, thereby driving the connecting rod 16 to rotate relative to the threaded cylinder 14. Since the threaded cylinder 14 is threadedly connected to the connecting rod 16, the total length of the threaded cylinder 14 and the connecting rod 16 changes, thereby realizing the adjustment of the inclination angle of the rotary chute 6.

[0027] Specifically, the rotary drum 3 is rotatably connected to the support 8 through a slewing bearing 20. The driving mechanism includes a motor 17. A gear 19 is fixedly connected to the output shaft of the motor 17. A gear ring 18 is fixedly connected to the outside of the slewing bearing 20. The gear 19 meshes with the gear ring 18. Preferably, the motor 17 is a hydraulic motor or a pneumatic motor.

[0028] Specifically, a support frame 15 is fixedly connected to the inner side of the rotary barrel 3. The threaded barrel 14 is rotatably connected to the support frame 15 through a bearing. In order to prevent materials from invading the inside of the bearing, a conical cover 25 is provided above the bearing, and the conical cover 25 is fixedly connected to the outer side of the threaded barrel 14.

[0029] In some embodiments, the sliding connection between the connecting rod 16 and the rotary chute 6 is achieved in the following way. A connecting plate 21 is fixedly connected to the inner side of the rotary chute 6. A strip-shaped hole 23 is formed in the middle of the connecting plate 21 along the length direction of the rotary chute 6. A movable shaft 22 passes through the middle of the strip-shaped hole 23, and the movable shaft 22 is fixedly connected to the connecting rod 16. This sliding connection structure is simple and reliable.

[0030] In order to make the strip-shaped block 13 accurately slide into the strip-shaped groove 10, a stop block 28 is fixedly connected to the outer side of the rotary barrel 3, and a proximity switch 29 is fixedly connected to the support 8 at a position corresponding to the stop block 28. By setting the proximity switch 29 and the stop block 28, the orientation of the strip-shaped block 13 can be determined. It should be noted that in order not to affect the alignment of the strip-shaped block 13 and the strip-shaped groove 10 during the next adjustment, after the current adjustment is completed, the stop block 28 is driven to rotate to the proximity switch 29 and then the movable gate 9 is moved away.

[0031] In some embodiments, the gate valve 2 further includes a gate frame 11. A round hole for communicating the feeding hopper 1 and the rotary barrel 3 is vertically provided in the middle of the gate frame 11. A rectangular through hole for limiting the movable gate 9 is horizontally provided in the middle of the gate frame 11. An elastic sealing block 12 is fixedly connected to the position of the gate frame 11 corresponding to the strip-shaped groove 10. By providing the elastic sealing block 12 to block the strip-shaped groove 10, leakage of materials at the strip-shaped groove 10 during the material conveying process is avoided.

[0032] An external thread 26 is provided at one end of the connecting rod 16 located inside the threaded barrel 14. In order to strengthen the protection of the external thread on the outside of the connecting rod 16 and prevent materials from invading and damaging the thread structure, a threaded section 24 and a straight barrel section 27 are provided inside the threaded barrel 14. By providing the straight barrel section 27, the external thread 26 of the connecting rod 16 is always located inside the threaded barrel 14, thereby reducing the invasion of materials. Preferably, an elastic sealing cylinder 30 is fixedly connected to the outside of the connecting rod 16, and the elastic sealing cylinder 30 is located in the straight barrel section 27 of the threaded barrel 14. Under the action of the elastic sealing cylinder 30, the seal between the connecting rod 16 and the threaded barrel 14 is blocked to avoid the invasion of materials. At the same time, under the action of the elastic sealing cylinder 30, the friction between the connecting rod 16 and the threaded barrel 14 is increased to prevent the threaded barrel 14 from rotating relative to the connecting rod 16 during material conveying.

[0033] Working principle: When adjusting the inclination angle of the rotary chute 6, the rotary drum 3 is driven to rotate by the motor 17, so that the stopper 28 rotates to the proximity switch 29, and then the gate valve 2 is closed. The strip 13 slides into the strip groove 10 of the movable gate 9, and the movable gate 9 is used to limit the threaded cylinder 14. Then the motor 17 drives the rotary drum 3 to rotate. At this time, the threaded cylinder 14 cannot rotate with the rotary drum 3, so that the threaded cylinder 14 rotates relative to the connecting rod 16, thereby adjusting the length of the connecting rod 16 extending out of the threaded cylinder 14, and further adjusting the inclination angle of the rotary chute 6 through the connecting rod 16.

[0034] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lime kiln rotary distributor, comprising a bracket (8), the middle part of which is rotatably connected to a rotary barrel (3) driven to rotate by a driving mechanism, an upper hopper (1) is provided at the top of the rotary barrel (3), a gate valve (2) for controlling the flow of materials is provided between the upper hopper (1) and the rotary barrel (3), and a rotary chute (6) is rotatably connected to the bottom end of the rotary barrel (3), characterized in that: A threaded barrel (14) is rotatably connected to the axis of the rotating barrel (3); the internal thread of the threaded barrel (14) is connected to a connecting rod (16); one end of the connecting rod (16) extends to the outside of the threaded barrel (14) and is slidably connected to the rotating chute (6); and a strip block (13) is fixedly connected to the top of the threaded barrel (14); The gate valve (2) comprises a movable gate (9), and a strip groove (10) adapted to the strip block (13) is provided in the middle of the movable gate (9).

2. A lime kiln rotary distributor according to claim 1, characterized in that: A support frame (15) is fixedly connected to the inner side of the rotating barrel (3), and the threaded barrel (14) is rotatably connected to the support frame (15) via a bearing. A conical cover (25) is provided above the bearing, and the conical cover (25) is fixedly connected to the outer side of the threaded barrel (14).

3. A lime kiln rotary distributor according to claim 1, characterized in that: A connecting plate (21) is fixedly connected to the inner side of the rotating chute (6), a strip hole (23) is opened in the middle of the connecting plate (21) along the length direction of the rotating chute (6), a movable shaft (22) passes through the middle of the strip hole (23), and the movable shaft (22) is fixedly connected to the connecting rod (16).

4. A lime kiln rotary distributor according to claim 1, characterized in that: A stopper (28) is fixedly connected to the outer side of the rotating barrel (3), and a proximity switch (29) is fixedly connected to a position of the bracket (8) corresponding to the stopper (28).

5. The lime kiln rotary distributor according to claim 1, characterized in that: The gate valve (2) further comprises a gate frame (11), a circular hole for connecting the upper hopper (1) and the rotating barrel (3) being vertically arranged in the middle of the gate frame (11), a rectangular through hole for limiting the position of the movable gate (9) being horizontally arranged in the middle of the gate frame (11), and an elastic sealing block (12) being fixedly connected to the gate frame (11) at a position corresponding to the strip groove (10).

6. A lime kiln rotary distributor according to claim 1, characterized in that: The threaded barrel (14) is provided with a threaded section (24) and a straight barrel section (27) inside, and the connecting rod (16) is provided with an external thread (26) at one end located inside the threaded barrel (14).

7. A lime kiln rotary distributor according to claim 6, characterized in that: An elastic sealing cylinder (30) is fixedly connected to the outer side of the connecting rod (16), and the elastic sealing cylinder (30) is located in the straight cylinder section (27) of the threaded cylinder (14).

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