Multi-channel nozzle of rotary kiln

Abstract

The utility model discloses a rotary kiln multi-channel nozzle which comprises a main body assembly, a nozzle body assembly and a nozzle body assembly. The adjusting assembly comprises a base located below the first center pipeline, a fixing frame connected to the upper portion of the base, an organ protective cover connected to the fixing frame, a motor connected to the side edge of the fixing frame, a lead screw rotationally connected to the motor, a limiting plate connected into the fixing frame and a first supporting column connected to the lead screw in a sliding mode. The utility model solves the problems that the range of the nozzle with fixed length cannot be adjusted according to specific requirements, and the nozzle cannot completely adapt to different process requirements; different materials need different spraying speeds and spraying quantities, and a nozzle with a fixed length cannot meet the requirements of different materials, so that the efficiency and the quality of the production process can be influenced; the nozzle with the fixed length cannot be adjusted according to the distribution change of materials, the temperature of the kiln body and the like, so that the problems of non-uniformity of the spraying effect and non-uniformity of load distribution in the kiln body are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary kilns, and specifically relates to a multi-channel nozzle for a rotary kiln. Background Technique

[0002] The multi-channel nozzle for a rotary kiln is a nozzle used for producing materials such as cement and lime in a rotary kiln. It has multiple channels for spraying high-temperature gas, dust, and particulate materials.

[0003] Now query a Chinese patent for a multi-channel nozzle for a rotary kiln, with the publication number CN202002463U, which includes a central pipeline, a clean air pipeline, a pulverized coal pipeline, a gas pipeline, and wind teeth. The central pipeline consists of a main body part, a conical part, and a tail part. The main body part is sleeved with the clean air pipeline, and the tail of the clean air pipeline is welded and sealed with the main body part. The pulverized coal pipeline is installed at the rear end of the main body part, the gas pipeline is installed on the conical part, and the angle formed by the pulverized coal pipeline and the main body part is between 10°C and 30°C. The angle formed by the center line of the gas pipeline and the center line of the conical part is between 10°C and 30°C. The wind teeth are installed inside the front end of the main body part. The beneficial effect of the utility model is: more complete combustion, higher flame temperature, energy conservation, and increased production capacity.

[0004] However, it still has the following drawbacks in actual use:

[0005] The nozzle with a fixed length cannot be adjusted within a range according to specific needs and cannot fully adapt to different process requirements; different materials require different spraying speeds and spraying amounts, and the nozzle with a fixed length cannot meet the needs of different materials, which will affect the efficiency and quality of the production process; the nozzle with a fixed length cannot be adjusted according to the distribution change of materials and the temperature of the kiln body, etc., resulting in uneven spraying effects and uneven load distribution inside the kiln body.

[0006] Therefore, we provide a multi-channel nozzle for a rotary kiln to solve the above problems. Content of the Utility Model

[0007] Technical Problems to be Solved

[0008] The purpose of the utility model is to provide a multi-channel nozzle for a rotary kiln to solve the problems raised in the above background technique, that is, the nozzle with a fixed length cannot be adjusted within a range according to specific needs and cannot fully adapt to different process requirements; different materials require different spraying speeds and spraying amounts, and the nozzle with a fixed length cannot meet the needs of different materials, which will affect the efficiency and quality of the production process; the nozzle with a fixed length cannot be adjusted according to the distribution change of materials and the temperature of the kiln body, etc., resulting in uneven spraying effects and uneven load distribution inside the kiln body.

[0009] Technical Solution

[0010] To solve the above technical problems, the present utility model is realized through the following technical solutions:

[0011] The present utility model relates to a multi-channel nozzle for a rotary kiln, comprising:

[0012] A main body assembly, including a first central pipe provided therein;

[0013] An adjustment assembly, including a base located below the first central pipe, a fixing frame connected above the base, a bellows protective cover connected to the fixing frame, a motor connected to the side of the fixing frame, a lead screw rotatably connected to the motor, a limiting plate connected within the fixing frame, a first support column slidably connected to the lead screw, a first clamp hinged to the first support column, a second central pipe slidably connected to the first central pipe, and a collar welded to the second central pipe;

[0014] A support assembly, connected above the base.

[0015] Furthermore, the adjustment assembly further includes an expansion rod connected to the outside of the second central pipe, a second clamp connected to the expansion rod, a sealing plate connected to the second clamp, and a sealing gasket connected to the sealing plate;

[0016] Specifically, by opening the bolts on the second clamp, the expansion rod expands and contracts, causing the second clamp to disengage from the second central pipe, facilitating the movement of the second central pipe. When the second clamp is tightened, the sealing plate and the sealing gasket are attached to the joint of the second central pipe and the first central pipe to ensure tightness.

[0017] Furthermore, the lead screw is rotatably connected within the fixing frame, the first clamp is connected and locked within the collar by bolts, the limiting plate is located on both sides of the first support column, and the bellows protective cover wraps around the outside of the lead screw and the first support column;

[0018] Specifically, the rotation of the lead screw can drive the movement of the first support column, the movement of the first support column drives the movement of the first clamp, and then drives the movement of the collar. The bellows protective cover plays a protective role to prevent dust accumulation from affecting the movement of the first support column, and the limiting plate can prevent the first support column from shaking during movement.

[0019] Furthermore, the main body assembly further includes a conical portion connected to the rear of the first central pipe and a tail portion connected to the rear of the conical portion;

[0020] Specifically, the provided conical portion can accelerate the flow rate of gas and materials, generating centripetal force, and the tail portion is used to support and fix the nozzle.

[0021] Furthermore, the main body assembly further includes a pulverized coal pipe connected to the middle section of the first central pipe, a gas pipe connected to the tail section of the first central pipe, a clean air pipe connected to the conical portion, and wind teeth connected to the front end of the second central pipe;

[0022] Specifically, the coal gas is input from the coal gas pipeline, and the pulverized coal is input from the pulverized coal pipeline and enters the first central pipeline. High-pressure air flows into the clean air pipeline. Finally, the materials and the air flow are fully mixed through the air teeth.

[0023] Furthermore, the support assembly includes a second support column connected above the fixed frame and an arc-shaped support plate connected to the second support column;

[0024] Specifically, the second support column and the arc-shaped support plate play a supporting role.

[0025] Furthermore, the support assembly further includes a fixing plate connected to the arc-shaped support plate and rollers rotatably connected between the fixing plates;

[0026] Specifically, the fixed frame plays a supporting role. When the second central pipeline moves, it drives the rollers to rotate. On the one hand, the rollers play a supporting role, and on the other hand, they facilitate the movement of the second central pipeline.

[0027] Beneficial effects

[0028] Compared with the prior art, the advantages of the present utility model are as follows:

[0029] First, in the present utility model, through the provided adjusting assembly, the motor drives the lead screw to rotate. The rotation of the lead screw drives the first support column to move, which can drive the collar on the first hoop to move, and further drive the second central pipeline to move, so that the overall length of the nozzle is adjustable to meet the requirements of different processes, materials, and production changes.

[0030] Second, based on the first beneficial effect, the provided bellows protective cover plays a protective role to prevent dust accumulation from affecting the movement of the first support column.

[0031] Third, based on the first beneficial effect, through the provided telescopic rod and the second hoop, when the second central pipeline needs to be adjusted, the second hoop is opened to disengage the second hoop from the connection between the first central pipeline and the second central pipeline, which does not affect the movement of the second central pipeline. After the adjustment is completed, the second hoop is tightened to make the sealing plate and the sealing gasket tightly adhere to the first central pipeline and the second central pipeline to ensure the sealing performance inside the entire nozzle.

[0032] Fourth, in the present utility model, through the provided support assembly, the provided second support column, arc-shaped support plate, fixing plate, and rollers play a supporting role to prevent damage to the first support column and the lead screw due to the excessive weight of the second central pipeline. On the other hand, when the second central pipeline moves, the rollers rotate, which can reduce the resistance during the movement of the second central pipeline.

[0033] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. Description of the drawings

[0034] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0035] Figure 1 Schematic diagram of the overall structure of the present invention;

[0036] Figure 2 Cross-sectional view of the main component of the present invention;

[0037] Figure 3 Schematic diagram of the adjustment component and the support component of the present invention.

[0038] In the drawings, the list of components represented by each reference numeral is as follows:

[0039] 10. First central pipeline; 11. Conical part; 12. Tail part; 13. Pulverized coal pipeline; 14. Gas pipeline; 15. Clean air pipeline; 16. Wind teeth; 20. Second central pipeline; 21. Collar; 22. Base; 23. Fixed frame; 24. Motor; 240. Limiting plate; 241. Lead screw; 25. First support column; 26. First hoop; 27. Telescopic rod; 28. Second hoop; 280. Sealing plate; 281. Sealing gasket; 29. Bellows protective cover; 30. Second support column; 31. Arc-shaped support plate; 32. Fixed plate; 33. Roller. Specific embodiments

[0040] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will make a detailed description of the specific embodiments of the present invention with reference to the drawings.

[0041] In the following description, many specific details are set forth to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0042] Secondly, the present invention will be described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally not in accordance with the general scale, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0043] To make the objectives, technical solutions and advantages of the present utility model clearer, the following will further describe in detail the embodiments of the present utility model with reference to the accompanying drawings.

[0044] Embodiment 1

[0045] Please refer to Figures 1-3 As shown, this embodiment is a multi-channel nozzle for a rotary kiln, including:

[0046] The main body assembly includes a first central pipe 10 provided, a conical part 11 connected behind the first central pipe 10, a tail part 12 connected behind the conical part 11, a pulverized coal pipe 13 connected to the middle section of the first central pipe 10, a gas pipe 14 connected to the tail section of the first central pipe 10, a clean air pipe 15 connected to the conical part 11, and a wind tooth 16 connected to the front end of the second central pipe 20;

[0047] The adjustment assembly includes a base 22 located below the first central pipe 10, a fixing frame 23 connected above the base 22, a bellows protective cover 29 connected to the fixing frame 23, a motor 24 connected to the side of the fixing frame 23, a lead screw 241 rotatably connected to the motor 24, a limit plate 240 connected inside the fixing frame 23, a first support column 25 slidably connected to the lead screw 241, a first hoop 26 hinged to the first support column 25, a second central pipe 20 slidably connected to the first central pipe 10, a collar 21 welded to the second central pipe 20, a telescopic rod 27 connected to the outside of the second central pipe 20, a second hoop 28 connected to the telescopic rod 27, a sealing plate 280 connected to the second hoop 28, and a gasket 281 connected to the sealing plate 280;

[0048] The lead screw 241 is rotatably connected inside the fixing frame 23. The first hoop 26 is locked in the collar 21 by bolt connection. The limit plate 240 is located on both sides of the first support column 25. The bellows protective cover 29 wraps around the outside of the lead screw 241 and the first support column 25.

[0049] Use of the adjustment assembly:

[0050] When the nozzle length needs to be adjusted, loosen the bolts of the second hoop 28, open the second hoop 28, extend the telescopic rod 27, so that the second hoop 28 is disengaged from the connection between the first central pipe 10 and the second central pipe 20. Start the motor 24 to drive the lead screw 241 inside the fixing frame 23 to rotate. The rotation of the lead screw 241 drives the first support column 25 to move between the limit plates 240, which can drive the collar 21 on the first hoop 26 to move, and then drive the second central pipe 20 to move. After the adjustment is completed, tighten the second hoop 28 so that the sealing plate 280 and the gasket 281 are in close contact with the first central pipe 10 and the second central pipe 20. The base 22 below the fixing frame 23 plays a supporting role.

[0051] Example 2

[0052] Please refer to Figure 3 as shown. On the basis of the above-mentioned Embodiment 1, this embodiment further includes:

[0053] The support assembly includes a second support column 30 connected above the fixed frame 23, an arc-shaped support plate 31 connected to the second support column 30, a fixing plate 32 connected to the arc-shaped support plate 31, and rollers 33 rotatably connected between the fixing plates 32.

[0054] Use of the support assembly:

[0055] When the second central pipe 20 moves, it drives the rollers 33 in the fixing plate 32 to rotate, and the second support column 30 and the arc-shaped support plate 31 play a supporting role.

[0056] In the description of the present invention, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "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, and it can be the communication inside two components. 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 situations.

[0057] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rotary kiln multi-channel nozzle, characterized in that: include: The main body assembly includes a first central pipe (10); An adjustment component comprises a base (22) located below a first central pipe (10), a fixing frame (23) connected to the top of the base (22), an accordion protective cover (29) connected to the fixing frame (23), a motor (24) connected to a side of the fixing frame (23), a screw rod (241) rotatably connected to the motor (24), a limit plate (240) connected to the fixing frame (23), a first support column (25) slidably connected to the screw rod (241), a first clamp (26) hinged to the first support column (25), a second central pipe (20) slidably connected to the first central pipe (10), and a collar (21) welded to the second central pipe (20); A support assembly is connected above the base (22).

2. A rotary kiln multi-channel nozzle according to claim 1, characterized in that: The adjustment assembly further comprises a telescopic rod (27) connected to the outside of the second central pipe (20), a second clamp (28) connected to the telescopic rod (27), a sealing plate (280) connected to the second clamp (28), and a sealing gasket (281) connected to the sealing plate (280).

3. A rotary kiln multi-channel nozzle according to claim 1, characterized in that: The screw rod (241) is rotatably connected in the fixing frame (23), the first hoop (26) is locked in the collar (21) by bolt connection, the limit plates (240) are located on both sides of the first support column (25), and the accordion protective cover (29) is wrapped around the screw rod (241) and the outside of the first support column (25).

4. A rotary kiln multi-channel nozzle according to claim 1, characterized in that: The main body component further comprises a tapered portion (11) connected to the rear of the first central pipe (10), and a tail portion (12) connected to the rear of the tapered portion (11).

5. The rotary kiln multi-channel nozzle according to claim 1, characterized in that: The main body assembly further comprises a pulverized coal pipeline (13) connected to the middle section of the first central pipeline (10), a gas pipeline (14) connected to the rear section of the first central pipeline (10), a clean air pipeline (15) connected to the tapered portion (11), and a wind tooth (16) connected to the front end of the second central pipeline (20).

6. The rotary kiln multi-channel nozzle according to claim 1, characterized in that: The support assembly comprises a second support column (30) connected above the fixing frame (23), and an arc-shaped support plate (31) connected to the second support column (30).

7. A rotary kiln multi-channel nozzle according to claim 6, characterized in that: The support assembly further comprises a fixing plate (32) connected to the arc-shaped support plate (31), and a roller (33) rotatably connected between the fixing plates (32).

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