Rotary kiln capable of automatically regulating and controlling wind

Abstract

The utility model relates to the technical field of rotary kilns, and discloses a rotary kiln capable of automatically regulating and controlling wind. The rotary kiln capable of being automatically regulated and controlled through wind comprises a bottom plate, a bracket is fixedly installed above the bottom plate, a supporting roller is installed above the bracket in a penetrating and inserting mode, a supporting ring is installed above the supporting roller in an embedded mode, a kiln body is fixedly installed at the center of the supporting ring, and a gear ring is fixedly installed on the outer side of the kiln body; a driving motor is fixedly mounted above the bottom plate, an electromagnetic stator is fixedly connected with a shell, a main shaft is rotationally connected with the shell through a limiting bearing, a permanent magnet rotor is located in the center of the electromagnetic stator, the permanent magnet rotor and the electromagnetic stator are of a concentric circle structure, and a partition plate is rotationally connected with the main shaft through a connecting bearing; the electromagnetic stator can drive the permanent magnet rotor to drive the main shaft to rotate after being electrified, in this way, the magnetic force of the electromagnetic stator can be adjusted through voltage, and therefore the rotating speed of the permanent magnet rotor is adjusted, and the air inlet amount is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary kilns, and particularly relates to a rotary kiln with automatic air regulation. Background Art

[0002] A rotary kiln refers to a rotary calcining kiln (commonly known as a rotary kiln), which is similar in shape to a rotary table and is also called a rotary table kiln, belonging to the category of building materials equipment. Rotary kilns can be divided into cement kilns, metallurgical and chemical kilns, and lime kilns according to the materials processed. Cement kilns are mainly used for calcining cement clinker and are divided into two major categories: dry-process cement kilns and wet-process cement kilns.

[0003] For the existing Chinese utility model patent with the reference publication number: CN219656567U, it discloses a rotary kiln, which relates to the technical field of rotary kilns. The rotary kiln includes a rotary kiln main body, on which a plurality of tyre rings are arranged, on which a first trigger member is arranged, and on the rotary kiln main body, a second trigger member is arranged; on one side of the rotary kiln main body, a first proximity switch matching the first trigger member and a second proximity switch matching the second trigger member are arranged. The rotary kiln provided by the utility model has a plurality of tyre rings arranged on the rotary kiln main body, a first trigger member arranged on the tyre ring, and a second trigger member arranged on the rotary kiln main body. The first trigger member cooperates with the first proximity switch, and the second trigger member cooperates with the second proximity switch. In this way, the real-time gap size of the tyre rings can be calculated according to the triggering of the first proximity switch and the second proximity switch, which is beneficial to timely discovering problems and timely adjusting the gap of the tyre rings, and is beneficial to extending the service life of the tyre rings.

[0004] The existing rotary kiln inputs air through an air pump and controls the oxygen intake through a throttle valve, which will cause the gas flow rate to be reduced by the throttle valve. At the same time, the existing rotary kiln drives the fan blades to rotate through a motor to generate air flow, so as to convey pulverized coal and oxygen into the rotary kiln. In this way, the gas flow rate is relatively low, and the pulverized coal may stay inside the coal injection pipe. Summary of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides a rotary kiln with automatic air regulation, which has the advantages of being convenient to adjust the air intake and being able to avoid pulverized coal staying inside the coal injection pipe, etc., and solves the above technical problems.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the present utility model provides the following technical solutions: A rotary kiln automatically regulated by wind, comprising: a bottom plate, a bracket is fixedly installed above the bottom plate, a support roller is inserted and installed above the bracket, a support ring is fitted and installed above the support roller, a kiln body is fixedly installed at the center of the support ring, a toothed ring is fixedly installed on the outer side of the kiln body, a driving motor is fixedly installed above the bottom plate, a transmission is fixedly installed at the rear of the driving motor, a driving gear is fixedly installed on the right side of the transmission, an air inlet pipe is fixedly installed above the bottom plate, a coal injection pipe is fixedly installed at the rear end of the air inlet pipe, a connecting frame is fixedly installed at the front end of the air inlet pipe, a housing is fixedly installed at the center of the connecting frame, an electromagnetic stator is fixedly installed inside the housing, limit bearings are fixedly installed on the front and rear sides of the housing, a main shaft is inserted through the center of the limit bearings, permanent magnet rotors are fixedly installed at both ends of the main shaft, a partition is fixedly installed inside the air inlet pipe, a connecting bearing is fixedly installed at the center of the partition, a connecting plate is fixedly installed on the outer side of the main shaft, a baffle is fixedly installed on the front side of the connecting plate, and an air inlet hood is fixedly installed on the front side of the air inlet pipe; the bracket can limit the position of the support roller.

[0009] As a preferred technical solution of the present utility model, the brackets are symmetrically installed on the front and rear sides of the support roller, a rotational connection is formed between the support roller and the bracket, and the support roller and the support ring are mutually fitted; the support roller can support the support ring.

[0010] As a preferred technical solution of the present utility model, the toothed ring is fixedly installed at the center of the kiln body, the toothed ring and the driving gear are mutually meshed, the rotating shaft of the driving motor is inserted through the power input end of the transmission, the bottom of the transmission is fixedly connected to the bottom plate, and the driving gear is inserted through the power output end of the transmission; the toothed ring can drive the kiln body to rotate.

[0011] As a preferred technical solution of the present utility model, the air inlet pipe is of a cylindrical structure, the rear end of the air inlet pipe is of a conical structure, the coal injection pipe is of a tee structure, and the connecting frame is fixedly installed at the front end of the conical structure of the air inlet pipe and on the front side of the air inlet pipe; the coal injection pipe can facilitate the conveyance of pulverized coal and air into the kiln body.

[0012] As a preferred technical solution of the present utility model, the housing is fixedly connected to the air inlet pipe through the connecting frame, a fixed connection is formed between the electromagnetic stator and the housing, and a rotational connection is formed between the main shaft and the housing through the limit bearings; the housing can limit the position of the electromagnetic stator.

[0013] As a preferred technical solution of the present utility model, the permanent magnet rotor is located at the center of the electromagnetic stator, the permanent magnet rotor and the electromagnetic stator are of concentric circle structure, the center of the partition plate is provided with an annularly distributed opening structure, and the partition plate is rotationally connected to the main shaft through a connecting bearing; the partition plate can limit the backward movement of gas from the central opening.

[0014] As a preferred technical solution of the present utility model, the outer side of the connecting plate is provided with annularly distributed depressions, the baffle is annularly distributed on the front side of the connecting plate with the center of the connecting plate as a reference, and the front end of the air inlet hood is provided with a chamfer structure; the air inlet hood can facilitate the entry of gas into the air inlet pipe.

[0015] Compared with the prior art, the present utility model provides a rotary kiln with automatic air regulation, having the following beneficial effects:

[0016] 1. Through the arrangement of the electromagnetic stator in the present utility model, the electromagnetic stator is fixedly connected to the outer shell, the main shaft is rotationally connected to the outer shell through a limit bearing, the permanent magnet rotor is located at the center of the electromagnetic stator, the permanent magnet rotor and the electromagnetic stator are of concentric circle structure, the partition plate is rotationally connected to the main shaft through a connecting bearing, and the electromagnetic stator can drive the permanent magnet rotor to drive the main shaft to rotate after being powered on. In this way, the magnetic force of the electromagnetic stator can be adjusted by voltage, so as to adjust the rotation speed of the permanent magnet rotor and adjust the air intake volume.

[0017] 2. Through the arrangement of the baffle in the present utility model, the baffle is annularly distributed on the front side of the connecting plate with the center of the connecting plate as a reference, the outer side of the connecting plate is provided with annularly distributed depressions, and the center of the partition plate is provided with an annularly distributed opening structure. When the main shaft drives the connecting plate to rotate, the baffle will drive the air to rotate, driving the air to be compressed towards the outer edge of the connecting plate under the influence of centrifugal force, moving backward through the opening at the outer edge of the connecting plate, and moving backward through the opening at the center of the partition plate under the restriction of the partition plate and being compressed again. In this way, an air flow with a faster flow rate can be generated, thus avoiding the situation that pulverized coal stays inside the coal injection pipe. Description of the Drawings

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

[0019] Figure 2 It is a schematic diagram of the installation structure of the kiln body of the present utility model;

[0020] Figure 3 It is a schematic diagram of the installation structure of the main shaft of the present utility model;

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

[0022] Wherein: 1. Base plate; 11. Bracket; 12. Support roller; 13. Support ring; 14. Kiln body; 15. Tooth ring; 16. Driving motor; 17. Transmission; 18. Driving gear; 2. Air inlet pipe; 21. Coal injection pipe; 22. Connecting frame; 23. Outer shell; 24. Electromagnetic stator; 25. Limit bearing; 26. Main shaft; 27. Permanent magnet rotor; 28. Partition plate; 29. Connecting bearing; 210. Connecting plate; 211. Baffle plate; 212. Air inlet hood. Specific embodiments

[0023] The following further describes in detail the embodiments of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is 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 drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Please refer to Figure 1 - Figure 4 , in this embodiment, a rotary kiln with automatic air regulation includes: a base plate 1, a bracket 11 is fixedly installed above the base plate 1, a support roller 12 is inserted and installed above the bracket 11, a support ring 13 is fitted and installed above the support roller 12, a kiln body 14 is fixedly installed at the center of the support ring 13, a tooth ring 15 is fixedly installed on the outside of the kiln body 14, a driving motor 16 is fixedly installed above the base plate 1, a transmission 17 is fixedly installed behind the driving motor 16, and a driving gear 18 is fixedly installed on the right side of the transmission 17.

[0027] The bracket 11 is symmetrically installed on the front and rear sides of the support roller 12. A rotational connection is formed between the support roller 12 and the bracket 11, and the support roller 12 and the support ring 13 are mutually engaged.

[0028] The toothed ring 15 is fixedly installed at the center of the kiln body 14. The toothed ring 15 and the driving gear 18 are mutually engaged. The rotating shaft of the driving motor 16 penetrates through the power input end of the transmission 17. The bottom of the transmission 17 is fixedly connected to the bottom plate 1, and the driving gear 18 penetrates through the power output end of the transmission 17.

[0029] Specifically, the bottom plate 1 can support the bracket 11, the bracket 11 can limit the position of the support roller 12, the support roller 12 can support the support ring 13, the support ring 13 can facilitate the rotation of the kiln body 14, the toothed ring 15 can drive the rotation of the kiln body 14, the driving motor 16 can drive the transmission 17, the transmission 17 can drive the driving gear 18 to rotate, and the driving gear 18 can drive the toothed ring 15 to rotate.

[0030] An air inlet pipe 2 is fixedly installed above the bottom plate 1. A coal injection pipe 21 is fixedly installed at the rear end of the air inlet pipe 2. A connecting frame 22 is fixedly installed at the front end of the air inlet pipe 2. A housing 23 is fixedly installed at the center of the connecting frame 22. An electromagnetic stator 24 is fixedly installed inside the housing 23. Limiting bearings 25 are fixedly installed on the front and rear sides of the housing 23. A main shaft 26 is inserted through the center of the limiting bearings 25. Permanent magnet rotors 27 are fixedly installed at both ends of the main shaft 26. A partition 28 is fixedly installed inside the air inlet pipe 2. A connecting bearing 29 is fixedly installed at the center of the partition 28. A connecting plate 210 is fixedly installed on the outer side of the main shaft 26. A baffle 211 is fixedly installed on the front side of the connecting plate 210. An air inlet hood 212 is fixedly installed on the front side of the air inlet pipe 2.

[0031] The air inlet pipe 2 is of a cylindrical structure, and the rear end of the air inlet pipe 2 is of a conical structure. The coal injection pipe 21 is of a tee structure. The connecting frame 22 is fixedly installed at the front end of the conical structure of the air inlet pipe 2 and on the front side of the air inlet pipe 2.

[0032] The housing 23 is fixedly connected to the air inlet pipe 2 through the connecting frame 22. A fixed connection is formed between the electromagnetic stator 24 and the housing 23. A rotational connection is formed between the main shaft 26 and the housing 23 through the limiting bearings 25.

[0033] The permanent magnet rotor 27 is located at the center of the electromagnetic stator 24. The permanent magnet rotor 27 and the electromagnetic stator 24 are of a concentric circle structure. The center of the partition 28 is provided with an opening structure distributed in a ring shape. A rotational connection is formed between the partition 28 and the main shaft 26 through the connecting bearing 29.

[0034] The outer side of the connecting plate 210 is provided with depressions distributed in a ring shape. The baffle 211 is distributed in a ring structure on the front side of the connecting plate 210 with the center of the connecting plate 210 as a reference. The front end of the air inlet hood 212 is provided with a chamfer structure.

[0035] Specifically, the air inlet pipe 2 can restrict the gas flow direction. The coal injection pipe 21 can facilitate the transportation of pulverized coal and air into the interior of the kiln body 14. The connecting frame 22 can restrict the position of the outer shell 23. The outer shell 23 can restrict the position of the electromagnetic stator 24. The electromagnetic stator 24 can drive the permanent magnet rotor 27 to rotate. The limit bearing 25 can facilitate the formation of a rotational connection between the main shaft 26 and the outer shell 23. The main shaft 26 can facilitate the rotation of the connecting plate 210. The permanent magnet rotor 27 can drive the main shaft 26 to rotate. The partition plate 28 can restrict the gas from moving backward through the central opening. The connecting bearing 29 can facilitate the formation of a rotational connection between the partition plate 28 and the main shaft 26. The connecting plate 210 can drive the baffle 211 to rotate. The baffle 211 can compress the air toward the outer side of the connecting plate 210. The air inlet hood 212 can facilitate the entry of gas into the air inlet pipe 2.

[0036] During use, the electromagnetic stator 24 and the outer shell 23 form a fixed connection. The main shaft 26 forms a rotational connection with the outer shell 23 through the limit bearing 25. The permanent magnet rotor 27 is located at the center of the electromagnetic stator 24. The permanent magnet rotor 27 and the electromagnetic stator 24 are in a concentric circle structure. The partition plate 28 forms a rotational connection with the main shaft 26 through the connecting bearing 29. The electromagnetic stator 24 can drive the permanent magnet rotor 27 to drive the main shaft 26 to rotate after being powered on. This method can adjust the magnetic force of the electromagnetic stator 24 through voltage, thereby adjusting the rotation speed of the permanent magnet rotor 27 to adjust the air intake volume. The baffle 211 is distributed in a ring structure on the front side of the connecting plate 210 with the center of the connecting plate 210 as a reference. The outer side of the connecting plate 210 is provided with depressions distributed in a ring shape. The center of the partition plate 28 is provided with an opening structure distributed in a ring shape. When the main shaft 26 drives the connecting plate 210 to rotate, the baffle 211 will drive the air to rotate, causing the air to be compressed toward the outer edge of the connecting plate 210 under the influence of centrifugal force, move backward through the opening on the outer edge of the connecting plate 210, and move backward through the opening at the center of the partition plate 28 under the restriction of the partition plate 28 and be compressed again. This method can generate an air flow with a faster flow rate, thereby avoiding the situation where pulverized coal stays inside the coal injection pipe 21.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary kiln automatically regulated by wind, characterized in that, Comprising: A bottom plate (1), above which a bracket (11) is fixedly installed. Above the bracket (11), a support roller (12) is inserted and installed. Above the support roller (12), a support ring (13) is fitted and installed. At the center of the support ring (13), a kiln body (14) is fixedly installed. On the outer side of the kiln body (14), a gear ring (15) is fixedly installed. Above the bottom plate (1), a driving motor (16) is fixedly installed. At the rear of the driving motor (16), a speed changer (17) is fixedly installed. On the right side of the speed changer (17), a driving gear (18) is fixedly installed. Above the bottom plate (1), an air inlet pipe (2) is fixedly installed. At the rear end of the air inlet pipe (2), a pulverized coal injection pipe (21) is fixedly installed. At the front end of the air inlet pipe (2), a connecting frame (22) is fixedly installed. At the center of the connecting frame (22), a housing (23) is fixedly installed. Inside the housing (23), an electromagnetic stator (24) is fixedly installed. On the front and rear sides of the housing (23), limit bearings (25) are fixedly installed. Through the centers of the limit bearings (25), a main shaft (26) is inserted. At both ends of the main shaft (26), permanent magnet rotors (27) are fixedly installed. Inside the air inlet pipe (2), a partition plate (28) is fixedly installed. At the center of the partition plate (28), a connecting bearing (29) is fixedly installed. On the outer side of the main shaft (26), a connecting plate (210) is fixedly installed. On the front side of the connecting plate (210), a baffle (211) is fixedly installed. On the front side of the air inlet pipe (2), an air inlet hood (212) is fixedly installed.

2. The rotary kiln with automatic air regulation according to claim 1, characterized in that: The brackets (11) are symmetrically installed on the front and rear sides of the support roller (12). A rotational connection is formed between the support roller (12) and the brackets (11). The support roller (12) and the support ring (13) are mutually fitted.

3. The rotary kiln with automatic air regulation according to claim 1, characterized in that: The gear ring (15) is fixedly installed at the center of the kiln body (14). A meshing connection is formed between the gear ring (15) and the driving gear (18). The rotating shaft of the driving motor (16) is inserted into the power input end of the speed changer (17). The bottom of the speed changer (17) is fixedly connected to the bottom plate (1). The driving gear (18) is inserted into the power output end of the speed changer (17).

4. The rotary kiln with automatic air regulation according to claim 1, characterized in that: The air inlet pipe (2) is of a cylindrical structure, and the rear end of the air inlet pipe (2) is of a conical structure. The pulverized coal injection pipe (21) is of a tee structure. The connecting frame (22) is fixedly installed at the front end of the conical structure of the air inlet pipe (2) and on the front side of the air inlet pipe (2).

5. The rotary kiln with automatic air regulation according to claim 1, characterized in that: The outer shell (23) is fixedly connected to the air inlet pipe (2) through a connecting frame (22), a fixed connection is formed between the electromagnetic stator (24) and the outer shell (23), and a rotational connection is formed between the main shaft (26) and the outer shell (23) through a limiting bearing (25).

6. The rotary kiln with automatic air regulation according to claim 1, characterized in that: The permanent magnet rotor (27) is located at the center of the electromagnetic stator (24), the permanent magnet rotor (27) and the electromagnetic stator (24) are concentric circle structures, an opening structure distributed in a ring shape is arranged at the center of the partition plate (28), and a rotational connection is formed between the partition plate (28) and the main shaft (26) through a connecting bearing (29).

7. The rotary kiln with automatic air regulation according to claim 1, characterized in that: A recess distributed in a ring shape is arranged on the outer side of the connecting plate (210), the baffle plate (211) is distributed in a ring structure on the front side of the connecting plate (210) with the center of the connecting plate (210) as the reference, and a chamfer structure is arranged at the front end of the air inlet hood (212).

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