Kiln head cover of rotary kiln

Abstract

The utility model belongs to the technical field of rotary kiln head covers, and particularly relates to a rotary kiln head cover which comprises a base, a feeding bin is fixedly installed on the top of the base, a rotary kiln body is rotatably installed on one side of the feeding bin, and a kiln head cover body is movably installed on one side of the rotary kiln body. The cleaning mechanism is used for cleaning dust in the kiln head cover; the cleaning mechanism comprises a second motor, the second motor is fixedly installed on one side of the kiln head cover, an output shaft of the second motor is fixedly connected with a connecting shaft, and the outer surface of the connecting shaft is fixedly connected with a third gear; an output shaft of a second motor drives a connecting shaft to rotate, the connecting shaft drives fan blades to rotate so that the amount of dust, entering a kiln head cover, in the rotary kiln body can be reduced, meanwhile, the connecting shaft drives a third gear to rotate, and the third gear drives two fourth gears to rotate; and the fourth gear drives the water pipe and the nozzle to rotate and sprays water to the inner wall of the kiln head cover under the action of the water pump to clean the inner wall of the kiln head cover.

Description

Technical Field

[0001] This utility model belongs to the technical field of rotary kiln head cover, specifically a rotary kiln head cover. Background Technology

[0002] Cement production uses raw materials containing large amounts of industrial waste, such as coal gangue, fly ash, slag, and desulfurized gypsum. Cement kilns are mainly used for calcining cement clinker and are divided into two main categories: dry-process cement kilns and wet-process cement kilns. Rotary kilns are kilns that rotate during calcination. A rotary kiln consists of processes such as gas flow, fuel combustion, heat transfer, and material movement. The key to a rotary kiln is ensuring that the fuel burns completely and that the heat from the combustion is effectively transferred to the material. After receiving the heat, the material undergoes a series of physicochemical changes, ultimately forming the finished clinker. The dust collector kiln hood is one of the important components of a rotary kiln.

[0003] A search revealed that patent document CN221484169U discloses a rotary kiln dust removal kiln head hood, which includes a rotary kiln body, a kiln head hood at one end of the rotary kiln body, and a kiln tail hood at the other end of the rotary kiln body; a maintenance door for maintenance personnel is hinged to one side of the kiln head hood, and an extension rod parallel to the maintenance door is provided on the kiln head hood via a rotating mechanism, and a clamping mechanism on the extension rod for pressing and tightening the maintenance door.

[0004] The rotary kiln dust collector hood uses a clamping cylinder to drive a clamping plate and a pressure plate to clamp the inspection door. A pressure sensor constantly monitors the impact force generated by the internal airflow compressing the inspection door, facilitating the clamping cylinder's operation. However, in actual use, due to the large amount of dust inside the rotary kiln, simply filtering the dust leaves some dust inside the hood, making it difficult for staff to perform subsequent maintenance.

[0005] Therefore, a rotary kiln head hood is proposed to address the above problems. Utility Model Content

[0006] To address the shortcomings of existing technologies and solve existing problems, a rotary kiln head hood is proposed.

[0007] The technical solution adopted by this utility model to solve its technical problem is: a rotary kiln head cover of this utility model includes a base, a feeding bin is fixedly installed on the top of the base, a rotary kiln body is rotatably installed on one side of the feeding bin, and a kiln head cover is movably installed on one side of the rotary kiln body.

[0008] It also includes a cleaning system for cleaning dust inside the kiln hood;

[0009] The cleaning mechanism includes a second motor, which is fixedly installed on one side of the kiln head hood. The output shaft of the second motor is fixedly connected to a connecting shaft. A third gear is fixedly connected to the outer surface of the connecting shaft. The third gear meshes with two fourth gears. A water pipe is fixedly connected to one side of the fourth gear. A nozzle is fixedly connected to one end of the water pipe. A water pump is fixedly connected to the other end of the water pipe. A water tank is fixedly connected to the bottom of the water pump. The water tank is fixedly installed on one side of the kiln head hood. A fan blade is fixedly connected to one end of the connecting shaft.

[0010] Preferably, a first motor is fixedly installed on the top of the base, a first gear is fixedly connected to the output shaft of the first motor, and a second gear is fixedly installed on the outer surface of the rotary kiln body, with the second gear and the first gear meshing with each other.

[0011] Preferably, an installation ring and a limiting clamp are fixedly installed on the top of the base, a limiting plate is fixedly installed on one side of the kiln head cover, the limiting plate is slidably installed on the inner surface of the limiting clamp, and the rotary kiln body is rotatably installed on the inner surface of the installation ring.

[0012] Preferably, a first connecting ring is rotatably mounted on the outer surface of the rotary kiln body, and a sealing groove is provided on one side of the first connecting ring. A second connecting ring is rotatably mounted on the outer surface of the kiln head cover, and a sealing ring is fixedly mounted on one side of the second connecting ring. Two connecting ears are fixedly mounted on the outer surface of the second connecting ring.

[0013] Preferably, a coal-fired pipe is fixedly installed on one side of the kiln head hood, the coal-fired pipe extends into the inner cavity of the kiln head hood, and the tilt angle of the rotary kiln body relative to the base is 3°.

[0014] Preferably, a second groove is provided on one side of the kiln head hood, a baffle is slidably installed on the inner surface of the second groove, a first groove is provided on the inner surface of the second groove, and a filter plate is movably installed on the inner surface of the first groove.

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

[0016] 1. This utility model provides a rotary kiln head cover, in which the output shaft of the first motor drives the first gear to rotate, the first gear further drives the second gear to rotate, and the second gear drives the rotary kiln body to rotate. The rotation of the rotary kiln body on the inner surface of the mounting ring can increase the stability of the rotation of the rotary kiln body. The kiln head cover and the rotary kiln body are tightly connected by inserting the sealing ring into the inner surface of the sealing groove and then by two connecting ears.

[0017] 2. This utility model provides a rotary kiln head cover. The output shaft of the second motor drives the connecting shaft to rotate, and the connecting shaft drives the fan blades to rotate, which can reduce the amount of dust in the rotary kiln body entering the kiln head cover. At the same time, the connecting shaft drives the third gear to rotate, and the third gear drives two fourth gears to rotate. The fourth gear drives the water pipe and the nozzle to rotate. Under the action of the water pump, water is sprayed onto the inner wall of the kiln head cover to clean the inner wall of the kiln head cover. Finally, the sewage drips onto the filter plate, is filtered by the filter plate, and the dust is left on the top of the filter plate. At the same time, the water is filtered by the filter plate and flows into the water tank, which allows the water to be recycled. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the main connection structure of the rotary kiln of this utility model;

[0021] Figure 3 This is a schematic diagram of the kiln head cover connection structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the inner cavity structure of the kiln head cover of this utility model;

[0023] Figure 5 This is a schematic diagram of the filter plate installation structure of this utility model.

[0024] Legend: 1. Base; 11. Limiting clamp; 12. Mounting ring; 2. Feed hopper; 201. Rotary kiln body; 21. First motor; 22. First gear; 23. Second gear; 24. First connecting ring; 241. Sealing groove; 3. Second connecting ring; 301. Connecting ear; 31. Sealing ring; 32. Kiln head cover; 321. First groove; 322. Filter plate; 323. Second groove; 324. Baffle; 33. Limiting plate; 34. Coal combustion pipe; 35. Second motor; 351. Connecting shaft; 352. Third gear; 353. Fan blade; 36. Water pipe; 361. Fourth gear; 362. Nozzle; 37. Water pump; 38. Water tank. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Specific implementation examples are given below.

[0027] Please see Figures 1-5 This utility model provides a rotary kiln head cover, comprising a base 1, a feed hopper 2 fixedly installed on the top of the base 1, a rotary kiln body 201 rotatably installed on one side of the feed hopper 2, and a kiln head cover 32 movably installed on one side of the rotary kiln body 201; it also includes a cleaning mechanism for cleaning dust inside the kiln head cover 32; the cleaning mechanism includes a second motor 35, which is fixedly installed on one side of the kiln head cover 32, and a connecting shaft 351 fixedly connected to the output shaft of the second motor 35. A third gear 352 is fixedly connected to the outer surface of the connecting shaft 351, and the third gear 352 meshes with two fourth gears 361. A water pipe 36 is fixedly connected to one side of the fourth gears 361, a nozzle 362 is fixedly connected to one end of the water pipe 36, and a water pump 37 is fixedly connected to the other end of the water pipe 36. A water tank 38 is fixedly connected to the bottom of the water pump 37 and is fixedly installed on one side of the kiln head cover 32. A fan blade 353 is fixedly connected to one end of the connecting shaft 351.

[0028] A large amount of dust is generated when the rotary kiln is in operation. The accumulation of dust inside the kiln head cover makes it difficult for workers to inspect and maintain the rotary kiln and the kiln head cover.

[0029] In use, this utility model first rotates the connecting shaft 351 via the output shaft of the second motor 35. The connecting shaft 351 rotates the fan blades 353, which blows the air inside the kiln head cover 32 into the rotary kiln body 201. This reduces the amount of dust entering the kiln head cover 32 from the rotary kiln body 201. When maintaining the kiln head cover 32, the connecting shaft 351 rotates the third gear 352, which drives the two fan blades 353 to rotate. Under the action of the water pump 37, water from the water tank 38 is drawn out and sprayed out through the rotating nozzle 362 to clean the kiln head cover 32, thus achieving the purpose of keeping the kiln head cover 32 clean.

[0030] Furthermore, such as Figure 2As shown, a first motor 21 is fixedly installed on the top of the base 1, and a first gear 22 is fixedly connected to the output shaft of the first motor 21. A second gear 23 is fixedly installed on the outer surface of the rotary kiln body 201, and the second gear 23 and the first gear 22 mesh with each other.

[0031] In use, the first motor 21 drives the first gear 22 to rotate via its output shaft. The first gear 22 further drives the second gear 23 to rotate. The second gear 23 drives the rotary kiln body 201 to rotate, enabling the rotary kiln body 201 to work. At the same time, the rotary kiln body 201 and the mounting ring 12 rotate relative to each other.

[0032] Furthermore, such as Figure 2 and Figure 3 As shown, an installation ring 12 and a limiting clamp 11 are fixedly installed on the top of the base 1, a limiting plate 33 is fixedly installed on one side of the kiln head cover 32, the limiting plate 33 is slidably installed on the inner surface of the limiting clamp 11, and the rotary kiln body 201 is rotatably installed on the inner surface of the installation ring 12.

[0033] A first connecting ring 24 is rotatably mounted on the outer surface of the rotary kiln body 201. A sealing groove 241 is provided on one side of the first connecting ring 24. A second connecting ring 3 is rotatably mounted on the outer surface of the kiln head cover 32. A sealing ring 31 is fixedly mounted on one side of the second connecting ring 3. Two connecting ears 301 are fixedly mounted on the outer surface of the second connecting ring 3.

[0034] In use, the sealing ring 31 is first inserted into the inner cavity of the sealing groove 241. Then, the second connecting ring 3 and the first connecting ring 24 are connected by the connecting lug 301. At this time, the rotary kiln body 201 and the kiln head cover 32 are also tightly connected together. The sealing ring 31 can prevent the connection between the kiln head cover 32 and the rotary kiln body 201 from being loose, thus preventing gas leakage.

[0035] Furthermore, such as Figure 3 As shown, a coal-fired pipe 34 is fixedly installed on one side of the kiln head cover 32. The coal-fired pipe 34 penetrates into the inner cavity of the kiln head cover 32. The tilt angle of the rotary kiln body 201 relative to the base 1 is 3°.

[0036] In use, the gas inside the rotary kiln body 201 and the kiln head hood 32 can be discharged through the coal combustion pipe 34. In addition, the discharged gas can also be utilized through the coal combustion pipe 34. By making the rotary kiln body 201 have a certain tilt angle, the material and air circulation inside the rotary kiln body 201 can be promoted, thereby increasing the working efficiency of the rotary kiln body 201.

[0037] Furthermore, such as Figure 5As shown, a second groove 323 is provided on one side of the kiln head cover 32, a baffle 324 is slidably installed on the inner surface of the second groove 323, a first groove 321 is provided on the inner surface of the second groove 323, and a filter plate 322 is movably installed on the inner surface of the first groove 321.

[0038] When this utility model is in use, the water sprayed from the nozzle 362 can wash away the dust on the inner wall of the kiln head cover 32 during cleaning. The dust and water drip onto the filter plate 322. The sewage flows into the water tank 38 after being filtered by the filter plate 322, while the dust remains on the top of the filter plate 322. The operator can remove the baffle 324 and replace and clean the filter plate 322 through the second groove 323.

[0039] Working principle: When this utility model is in use, the output shaft of the first motor 21 drives the first gear 22 to rotate, the first gear 22 further drives the second gear 23 to rotate, and the second gear 23 drives the rotary kiln body 201 to rotate. The rotation of the rotary kiln body 201 on the inner surface of the mounting ring 12 can increase the stability of the rotation of the rotary kiln body 201. By inserting the sealing ring 31 into the inner surface of the sealing groove 241, the kiln head cover 32 and the rotary kiln body 201 are tightly connected by two connecting ears 301.

[0040] During operation, the output shaft of the second motor 35 drives the connecting shaft 351 to rotate. The connecting shaft 351 drives the fan blades 353 to rotate, which reduces the amount of dust in the rotary kiln body 201 entering the kiln head hood 32. At the same time, the connecting shaft 351 drives the third gear 352 to rotate, which in turn drives the two fourth gears 361 to rotate. The fourth gears 361 drive the water pipe 36 and the nozzle 362 to rotate. Under the action of the water pump 37, water is sprayed onto the inner wall of the kiln head hood 32 to clean it. Finally, the wastewater drips onto the filter plate 322 and is filtered by the filter plate 322. The dust remains on the top of the filter plate 322, while the water flows through the filter plate 322 into the water tank 38, which allows the water to be recycled.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A rotary kiln head cover, comprising a base (1), a feed bin (2) is fixedly installed on the top of the base (1), a rotary kiln body (201) is rotatably installed on one side of the feed bin (2), and a kiln head cover (32) is movably installed on one side of the rotary kiln body (201); It also comprises a cleaning mechanism for cleaning dust inside the kiln head cover (32); characterized in that The cleaning mechanism comprises a second motor (35), the second motor (35) is fixedly installed on one side of the kiln head cover (32), the output shaft of the second motor (35) is fixedly connected with a connecting shaft (351), the outer surface of the connecting shaft (351) is fixedly connected with a third gear (352), the third gear (352) is engaged with two fourth gears (361), one side of the fourth gear (361) is fixedly connected with a water pipe (36), one end of the water pipe (36) is fixedly connected with a spray head (362), the other end of the water pipe (36) is fixedly connected with a water pump (37), the bottom of the water pump (37) is fixedly connected with a water tank (38), the water tank (38) is fixedly installed on one side of the kiln head cover (32), and one end of the connecting shaft (351) is fixedly connected with a fan blade (353).

2. A kiln head cover according to claim 1, characterised in that: The output shaft of the first motor (21) is fixedly connected with a first gear (22), and the outer surface of the rotary kiln body (201) is fixedly installed with a second gear (23), the second gear (23) and the first gear (22) are engaged with each other.

3. A kiln head cover according to claim 2, wherein: The top of the base (1) is fixedly installed with a mounting ring (12) and a limiting clamp (11), one side of the kiln head cover (32) is fixedly installed with a limiting plate (33), the limiting plate (33) is slidably installed on the inner surface of the limiting clamp (11), and the rotary kiln body (201) is rotatably installed on the inner surface of the mounting ring (12).

4. A kiln head cover according to claim 3, wherein: The outer surface of the rotary kiln body (201) is rotatably installed with a first connecting ring (24), one side of the first connecting ring (24) is provided with a sealing groove (241), the outer surface of the kiln head cover (32) is rotatably installed with a second connecting ring (3), one side of the second connecting ring (3) is fixedly installed with a sealing ring (31), and the outer surface of the second connecting ring (3) is fixedly installed with two connecting ears (301).

5. A kiln hood according to claim 4, characterised in that: One side of the kiln head cover (32) is fixedly installed with a coal combustion pipe (34), the coal combustion pipe (34) penetrates into the inner cavity of the kiln head cover (32), and the inclination angle of the rotary kiln body (201) relative to the base (1) is 3°.

6. A kiln head cover according to claim 5, wherein: One side of the kiln head cover (32) is provided with a second groove (323), a baffle (324) is slidably installed on the inner surface of the second groove (323), a first groove (321) is formed in the inner surface of the second groove (323), and a filter plate (322) is movably installed in the inner surface of the first groove (321).

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