Visual calcination rotary kiln applied to white cement production

Abstract

The utility model discloses a visual calcination rotary kiln applied to white cement production, and relates to the field of white cement production and processing. Comprising a rotary kiln body, a kiln cylinder rotationally arranged at the top of the rotary kiln body, a kiln head cover rotationally arranged at the bottom of one end of the kiln cylinder and fixedly installed at the top of the rotary kiln body, and a visualization mechanism installed at the kiln cylinder and the kiln head cover. The visualization mechanism comprises a high-temperature industrial television probe which is obliquely arranged at one end of the kiln head cover and used for observing the combustion state of flames in the kiln cylinder, and an infrared scanner which is installed at the top of the rotary kiln body and used for scanning a calcination zone in the kiln cylinder and reflecting the calcination condition to an external computer. According to the utility model, the high-temperature industrial television probe is arranged at the kiln head to observe fire, and the infrared scanner is adopted to directly reflect the calcining condition of the calcining zone in the kiln cylinder on the computer, so that people can adjust the combustion parameters in the rotary kiln in time according to the flame combustion condition and the calcining condition, and the stable operation of the rotary kiln is ensured.

Description

Technical Field

[0001] The utility model relates to the field of white cement production and processing, in particular to a calcination visualization rotary kiln used in white cement production. Background Art

[0002] White cement is usually calcined in a rotary kiln, which is a multifunctional high-temperature equipment that combines a burner, heat exchanger, reactor and conveyor into one.

[0003] Raw material powder is fed into the kiln from the high end of the kiln tail. Due to the inclination and slow rotation of the kiln body, the material undergoes a compound motion of rolling in the circumferential direction and moving from the high end to the low end along the axial direction. The raw material undergoes decomposition, burning and other processes in the kiln, and is burned into cement clinker and then discharged from the low end into the cooler. Fuel is sprayed into the kiln head and burned in the kiln. The heat generated heats the raw material and calcines it into clinker.

[0004] The patent with publication number CN115265177A discloses "a fire viewing hole for a rotary kiln that is easy to clean, including a rotary kiln, which can realize that the operator controls the first cover plate to drive the second cover plate inside the kiln head cover to move together, and simultaneously open or close the two ends of the fire viewing tube. After the second cover plate closes the fire viewing tube, the problem of dust in the rotary kiln adhering to the glass can be avoided, thereby ensuring the light transmittance of the glass. The covering of the fire viewing tube by the first cover plate can avoid the problem of dust in the air adhering to the glass."

[0005] Regarding the above-mentioned related technologies, the inventor believes that the calcining conditions of the rotary kiln need to be analyzed and judged by people through the fire viewing hole, but the form of manual fire observation has many disadvantages, such as fixed and limited viewing angle, limited observation range, inability to continuously monitor online in real time, frequent human operations, and limited by personal experience and sensory differences in fire viewing, which is not conducive to calcining condition analysis and adjustment. Utility Model Content

[0006] In view of the shortcomings of the prior art, the utility model provides a calcination visualization rotary kiln used in white cement production. The specific technical scheme is as follows:

[0007] A calcination visualization rotary kiln used in white cement production, comprising a rotary kiln body, a kiln barrel rotatably arranged on the top of the rotary kiln body, a kiln head cover rotatably arranged at the bottom of one end of the kiln barrel and fixedly installed on the top of the rotary kiln body, and a visualization mechanism installed at the kiln barrel and the kiln head cover, wherein the visualization mechanism comprises a high-temperature industrial television probe obliquely arranged at one end of the kiln head cover for observing the flame combustion state in the kiln barrel, and an infrared scanner installed on the top of the rotary kiln body for scanning the calcination zone in the kiln barrel and responding the calcination state to an external computer;

[0008] An adjusting mechanism for controlling the inclination angle of the high-temperature industrial television probe is provided in the kiln head cover, and the adjusting mechanism comprises a sleeve seat fixed in the kiln head cover and a sphere rotatably connected in the sleeve seat. The high-temperature industrial television probe is located in the sphere, and a telescopic part is rotatably provided between the end of the high-temperature industrial television probe away from the kiln head cover and the outer wall of the kiln head cover.

[0009] By adopting the above technical solution, a high-temperature industrial TV probe is installed at the kiln head to monitor the fire, and an infrared scanner is used to directly reflect the calcination conditions of the calcination zone in the kiln tube on the computer, so that people can adjust the combustion parameters in the rotary kiln in time according to the flame combustion and calcination conditions.

[0010] Optionally, a burner for burning raw materials in the kiln barrel is fixedly installed in the kiln head cover, a fire viewing hole is opened at one end of the kiln head cover away from the kiln barrel, and the sleeve is fixedly connected to the fire viewing hole of the kiln head cover.

[0011] By adopting the above technical solution, the sleeve can block the fire viewing hole of the kiln head cover, and by controlling the telescopic part to extend and retract, it can drive the ball and other parts to rotate, thereby adjusting the inclination angle of the high-temperature industrial television probe.

[0012] Optionally, a bottom plate is fixedly provided on one side of the bottom of the rotary kiln body, a fixed sleeve rod is fixedly provided on one side of the top of the bottom plate, a threaded rod is threaded on the top of the inner wall of the fixed sleeve rod, the infrared scanner is fixedly installed on the top of the threaded rod, the infrared scanner is located directly above the kiln tube, and a grip rod for people to hold is fixedly provided on the outer wall of the threaded rod.

[0013] By adopting the above technical solution, the infrared scanner can be driven to rise and fall by rotating the threaded rod, thereby controlling the scanning range of the infrared scanner.

[0014] Optionally, a fluorescent screen for simulating the process flow is fixedly provided on one side of the rotary kiln body.

[0015] By adopting the above technical solution, the fluorescent screen can display the simulated white cement production process, which is convenient for customers and staff to view.

[0016] In summary, the present invention has at least one of the following beneficial effects:

[0017] 1. By installing a high-temperature industrial TV probe at the kiln head to watch the fire, an infrared scanner is used to directly reflect the calcination conditions of the calcination zone in the kiln tube on the computer, so that people can adjust the combustion parameters in the rotary kiln in time according to the flame combustion and calcination conditions, ensure the stable operation of the rotary kiln, realize the visual management of calcination, and the overall operation is convenient and reliable.

[0018] 2. By controlling the telescopic parts to extend and retract, the ball and other parts can be driven to rotate, thereby adjusting the inclination angle of the high-temperature industrial TV probe and expanding the fire viewing range of the high-temperature industrial TV probe. People can control the scanning range of the infrared scanner by rotating the threaded rod to drive the infrared scanner to rise and fall, and the application range is wide. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 3 The utility model Figure 2 A magnified view of the structure in the middle.

[0022] Explanation of the reference numerals: 1. rotary kiln body; 11. kiln tube; 12. kiln head cover; 13. burner; 14. fire viewing hole; 2. high temperature industrial TV probe; 21. seat; 22. ball; 23. telescopic part; 3. infrared scanner; 31. bottom plate; 32. fixed sleeve rod; 33. threaded rod; 34. grip rod; 4. fluorescent screen. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-3 The utility model is described in further detail.

[0024] The utility model embodiment discloses a calcination visualization rotary kiln used in white cement production, referring to Figure 1-2 , comprising a rotary kiln body 1, a kiln shaft 11 rotatably arranged on the top of the rotary kiln body 1, a kiln head hood 12 rotatably arranged at the bottom of one end of the kiln shaft 11 and fixedly installed on the top of the rotary kiln body 1, and a visualization mechanism installed at the kiln shaft 11 and the kiln head hood 12, a burner 13 for burning the raw material in the kiln shaft 11 is fixedly installed in the kiln head hood 12, the rotary kiln body 1, the kiln shaft 11, the kiln head hood 12 and the burner 13 constitute an existing small rotary kiln, which can be used for the calcination production of white cement, wherein the internal structure and principle of the existing small rotary kiln have been disclosed, and no further elaboration is given here.

[0025] Reference Figure 1-2The visualization mechanism includes a high-temperature industrial television probe 2 which is tilted at one end of the kiln head cover 12 for observing the flame combustion state in the kiln tube 11, and an infrared scanner 3 which is installed on the top of the rotary kiln body 1 for scanning the calcination zone in the kiln tube 11 and responding the calcination condition to an external computer. The high-temperature industrial television probe 2 can continuously monitor the flame combustion state in the kiln tube 11, and display the flame combustion device on an external industrial television for convenient observation. People can check the calcination condition of the calcination zone in the kiln tube 11 from an external computer, so that people can adjust the combustion parameters in the rotary kiln in time according to the flame combustion condition and the calcination condition, so as to ensure the stable operation of the rotary kiln.

[0026] Reference Figure 2-3 An adjusting mechanism for controlling the inclination of the high-temperature industrial television probe 2 is provided in the kiln head cover 12. The adjusting mechanism includes a sleeve 21 fixedly arranged in the kiln head cover 12 and a ball 22 rotatably connected in the sleeve 21. A fire viewing hole 14 is provided at one end of the kiln head cover 12 away from the kiln tube 11. The sleeve 21 is fixedly connected in the fire viewing hole 14 of the kiln head cover 12. The sleeve 21 can block the fire viewing hole 14 of the kiln head cover 12. The connection method between the sleeve 21 and the ball 22 is the same as the connection method of the existing ball joint rotation mechanism.

[0027] Reference Figure 2-3 The high-temperature industrial TV probe 2 is located in the sphere 22. A telescopic part 23 is provided between the end of the high-temperature industrial TV probe 2 away from the kiln head cover 12 and the outer wall of the kiln head cover 12. The high-temperature industrial TV probe 2 is coaxial with the sphere 22. The telescopic part 23 can be a driving part with a telescopic effect such as an electric push rod and a hydraulic rod. After the telescopic part 23 is extended, one end of the high-temperature industrial TV probe 2 will be lifted or pulled down. At this time, in conjunction with the rotation of the sphere 22, the inclination angle of the high-temperature industrial TV probe 2 can be adjusted to expand the range of the high-temperature industrial TV probe 2 to view the fire.

[0028] Reference Figure 1-2 A bottom plate 31 is fixedly provided on one side of the bottom of the rotary kiln body 1, a fixed sleeve rod 32 is fixedly provided on one side of the top of the bottom plate 31, a threaded rod 33 is threaded on the top of the inner wall of the fixed sleeve rod 32, and the infrared scanner 3 is fixedly installed on the top of the threaded rod 33. The infrared scanner 3 is located directly above the kiln tube 11, and the bottom plate 31 can connect the rotary kiln body 1 and the fixed sleeve rod 32.

[0029] When people rotate the threaded rod 33, the infrared scanner 3 will be driven to rotate and rise and fall on the fixed sleeve rod 32, so that the scanning range of the infrared scanner 3 can be adjusted, which is suitable for scanning the calcining zone in the kiln tube 11 of different sizes.

[0030] Reference Figure 1-2A gripping rod 34 for people to hold is fixedly provided on the outer wall of the threaded rod 33. People can hold the gripping rod 34 to drive the threaded rod 33 to rotate. The gripping rod 34 is suitable for a small rotary kiln.

[0031] Reference Figure 1-2 A fluorescent screen 4 for simulating the process flow is fixedly provided on one side of the rotary kiln body 1. The fluorescent screen 4 can display the simulated process flow of white cement production, which is convenient for customers and staff to view.

[0032] The implementation principle of a calcination visualization rotary kiln used in white cement production according to the embodiment of the utility model is as follows:

[0033] When in use, people can watch the fire through the high-temperature industrial TV probe 2, and use the infrared scanner 3 to directly reflect the calcination status of the calcination zone in the kiln tube 11 on the external computer, so that people can adjust the combustion parameters in the rotary kiln in time according to the flame combustion status and calcination status, ensure the stable operation of the rotary kiln, and realize the visual management of calcination;

[0034] When it is necessary to adjust the inclination angle of the high-temperature industrial TV probe 2, people can control the telescopic part 23 to extend and retract. After the telescopic part 23 is extended and retracted, it will lift or pull down one end of the high-temperature industrial TV probe 2. At this time, the rotation of the ball 22 can be coordinated to change the inclination angle of the high-temperature industrial TV probe 2 and expand the range of the high-temperature industrial TV probe 2 to see the fire.

[0035] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A calcination visualization rotary kiln used in white cement production, comprising a rotary kiln body (1), a kiln barrel (11) rotatably disposed on the top of the rotary kiln body (1), a kiln head cover (12) rotatably disposed at the bottom of one end of the kiln barrel (11) and fixedly mounted on the top of the rotary kiln body (1), and a visualization mechanism installed at the kiln barrel (11) and the kiln head cover (12), characterized in that: The visualization mechanism comprises a high-temperature industrial television probe (2) disposed obliquely at one end of a kiln head cover (12) for observing the flame combustion state in the kiln tube (11), and an infrared scanner (3) installed at the top of the rotary kiln body (1) for scanning the calcination zone in the kiln tube (11) and reporting the calcination state to an external computer; An adjusting mechanism for controlling the inclination angle of the high-temperature industrial television probe (2) is provided in the kiln head cover (12), the adjusting mechanism comprising a sleeve (21) fixedly arranged in the kiln head cover (12), and a round ball (22) rotatably connected in the sleeve (21); the high-temperature industrial television probe (2) is located in the round ball (22); and a telescopic member (23) is rotatably provided between an end of the high-temperature industrial television probe (2) away from the kiln head cover (12) and an outer wall of the kiln head cover (12).

2. The calcination visualization rotary kiln used in white cement production according to claim 1, characterized in that: A burner (13) for burning raw materials in the kiln barrel (11) is fixedly installed in the kiln head cover (12).

3. The calcination visualization rotary kiln used in white cement production according to claim 1, characterized in that: A fire viewing hole (14) is provided at one end of the kiln head cover (12) away from the kiln tube (11), and the sleeve (21) is fixedly connected in the fire viewing hole (14) of the kiln head cover (12).

4. The calcination visualization rotary kiln used in white cement production according to claim 1, characterized in that: A bottom plate (31) is fixedly provided on one side of the bottom of the rotary kiln body (1).

5. The calcination visualization rotary kiln used in white cement production according to claim 4, characterized in that: A fixed sleeve rod (32) is fixedly provided on one side of the top of the bottom plate (31), and a threaded rod (33) is threadedly provided on the top of the inner wall of the fixed sleeve rod (32).

6. The calcination visualization rotary kiln used in white cement production according to claim 5, characterized in that: The infrared scanner (3) is fixedly mounted on the top of the threaded rod (33), and the infrared scanner (3) is located directly above the kiln tube (11).

7. The calcination visualization rotary kiln used in white cement production according to claim 6, characterized in that: A gripping rod (34) for people to hold is fixedly provided on the outer wall of the threaded rod (33).

8. The calcination visualization rotary kiln used in white cement production according to claim 1, characterized in that: A fluorescent screen (4) for simulating the process flow is fixedly provided on one side of the rotary kiln body (1).

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