Lime kiln protection device

Abstract

The utility model discloses a lime kiln protection device, which relates to the field of lime kiln protection, and is arranged on a kiln bottom device, a lime kiln body is arranged on the kiln bottom device, the kiln bottom device comprises a bearing table, the bearing table is provided with an air chamber, the lime kiln body comprises a material cavity, a main air pipe is arranged between the air chamber and the material cavity, the top of the main air pipe is provided with an air cap, and the air cap is arranged at the bottom of the material cavity. A protection device is arranged in the main air pipe and comprises a barrier plate, the barrier plate and the main air pipe are coaxially arranged, a plurality of vent holes are formed in the barrier plate, and the hole diameter of the vent holes is smaller than the diameter of materials in the material cavity; the lime kiln protection device aims at solving the problem that high-temperature materials enter an air chamber due to the fact that an existing air cap device is prone to falling off, and therefore safe and stable operation of a lime kiln is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of lime kiln protection, and specifically relates to a lime kiln protection device. Background Art

[0002] In the soda lime process, the lime kiln is a key production equipment, and its working performance directly affects the efficiency of the entire production line and the product quality. At present, lime kilns are all equipped with air cap devices, which provide the necessary air flow into the kiln through the main air pipe to support the calcination process of lime. However, in actual use, these air cap devices often have problems of falling off, resulting in high-temperature materials entering the air chamber through the main air pipe.

[0003] The air chamber is usually arranged on the kiln bottom device, and the kiln bottom device is used to support the weight of the entire lime kiln. The kiln bottom device is generally made of concrete casting, and its design is not for high-temperature environments, so it is not resistant to high temperatures; when high-temperature materials enter the air chamber for a long time, it will cause serious thermal damage to the kiln bottom device, thereby affecting the structural stability and service life of the lime kiln, and may also cause potential safety hazards. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a lime kiln protection device, which aims to solve the problems that the existing air cap device is easy to fall off and causes high-temperature materials to enter the air chamber, so as to ensure the safe and stable operation of the lime kiln.

[0005] The above optimized structure of the utility model is achieved through the following technical solutions: a lime kiln protection device is arranged on the kiln bottom device, the kiln bottom device is provided with a lime kiln body, the kiln bottom device includes a supporting platform, the supporting platform is provided with an air chamber, the lime kiln body includes a material chamber, a main air pipe is arranged between the air chamber and the material chamber, an air cap is arranged at the top of the main air pipe, the air cap is arranged at the bottom of the material chamber, a protection device is arranged in the main air pipe, the protection device includes a partition board, the partition board is coaxially arranged with the main air pipe, the partition board is provided with a plurality of ventilation holes, and the aperture of the ventilation holes is smaller than the diameter of the materials in the material chamber.

[0006] In some embodiments, a wind gathering groove is arranged at the top of the air chamber, and the bottom of the main air pipe penetrates through the wind gathering groove.

[0007] In some embodiments, a wind gathering ring is arranged at the bottom of the main air pipe, and the wind gathering ring is arranged in the wind gathering groove.

[0008] In some embodiments, the cross sections of the wind gathering groove and the wind gathering ring are both isosceles trapezoids, and the diameters of the wind gathering groove and the wind gathering ring gradually decrease along the direction close to the material chamber.

[0009] In some embodiments, at least three fixing columns are provided at the bottom of the main air duct. The three fixing columns are annularly distributed on the inner wall of the main air duct. At least three fixing grooves are provided on the baffle plate. The three fixing grooves are annularly distributed on the baffle plate. The fixing columns are inserted and matched with the fixing grooves. An installation hole is provided through the bottom of the fixing column and the baffle plate.

[0010] In some embodiments, a limiting plate is provided on the fixing column, and a limiting groove is provided at the top of the baffle plate. The limiting groove is inserted and matched with the limiting plate.

[0011] In some embodiments, a guiding strip is provided at the bottom of the fixing column. The guiding strip extends to the nozzle of the main air duct. A guiding groove is provided on one side of the fixing groove. The guiding groove is inserted and matched with the guiding strip.

[0012] In some embodiments, the supporting platform is formed by casting concrete.

[0013] In summary, the present utility model has the following beneficial effects:

[0014] This kind of lime kiln protection device is arranged in the main air duct. When the air cap falls off, it can prevent high-temperature materials from entering the air chamber through the main air duct, thereby effectively blocking high-temperature materials and avoiding thermal damage to the supporting platform caused by high-temperature materials, ensuring the safe and stable operation of the lime kiln. At the same time, structures such as fixing columns and guiding strips are arranged on the inner wall of the main air duct, which facilitates the installation and disassembly of the baffle plate in the main air duct, improves the convenience of installing the protection device, and is also convenient for later maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an installation sectional view of the present utility model between the kiln bottom device and the lime kiln body;

[0016] Figure 2 is an enlarged view of part A of the present utility model;

[0017] Figure 3 is a top view of the baffle plate of the present utility model.

[0018] In the figure: 1. Kiln bottom device; 11. Supporting platform; 12. Air chamber; 13. Air gathering groove; 2. Lime kiln body; 21. Material cavity; 3. Main air duct; 31. Air gathering ring; 32. Fixing column; 33. Limiting plate; 34. Guiding strip; 4. Protection device; 41. Baffle plate; 42. Ventilation hole; 43. Fixing groove; 44. Limiting groove; 45. Guiding groove; 5. Air cap; 6. Installation hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] Reference Figures 1-3 , a lime kiln protection device is provided on the kiln bottom device 1, and a lime kiln body 2 is provided on the kiln bottom device 1. The kiln bottom device 1 includes a supporting table 11, which is formed by pouring concrete. The supporting table 11 is provided with an air chamber 12. The lime kiln body 2 includes a material chamber 21. A main air pipe 3 is provided between the air chamber 12 and the material chamber 21. A wind cap 5 is provided at the top of the main air pipe 3, and the wind cap 5 is arranged at the bottom of the material chamber 21. A protection device 4 is provided in the main air pipe 3. The protection device 4 includes a partition plate 41, and the partition plate 41 can be made of high-temperature resistant material, such as stainless steel; the partition plate 41 is coaxially arranged with the main air pipe 3, and a plurality of ventilation holes 42 are provided on the partition plate 41 to facilitate the air flow in the air chamber to flow into the material chamber 21. The aperture of the ventilation hole 42 is smaller than the diameter of the materials in the material chamber 21, so as to prevent the high-temperature materials in the material chamber 21 from falling into the air chamber 12 after the wind cap falls off, thereby causing serious thermal damage to the supporting table 11, affecting the structural stability and service life of the lime kiln, and may also cause potential safety hazards.

[0021] In some embodiments, a wind gathering groove 13 is provided at the top of the air chamber 12. The bottom of the main air pipe 3 penetrates through the wind gathering groove 13. A wind gathering ring 31 is provided at the bottom of the main air pipe 3, and the wind gathering ring 31 is arranged in the wind gathering groove 13. The cross sections of the wind gathering groove 13 and the wind gathering ring 31 can both be isosceles trapezoids, and the diameters of the wind gathering groove 13 and the wind gathering ring 31 gradually decrease along the direction close to the material chamber 21, which is convenient for the gathering of the air flow in the air chamber 12, thereby improving the fluidity of the air flow.

[0022] In some embodiments, at least three fixing columns 32 are provided at the bottom of the main air pipe 3. The fixing columns 32 can be semi-cylinders, and the three fixing columns 32 are annularly distributed on the inner wall of the main air pipe 3. At least three fixing grooves 43 are provided on the partition plate 41. The fixing grooves 43 can be semi-circular grooves, and the three fixing grooves 43 are annularly distributed on the partition plate 41. The fixing columns 32 and the fixing grooves 43 are in plug-in fit. An installation hole 6 is provided through the bottom of the fixing column 32 and the partition plate 41. Threads can be provided on the inner wall of the installation hole 6, and the bottom of the fixing column 32 and the partition plate 41 can be detachably connected by bolts or screws, which is convenient for installation and the later maintenance and replacement of the partition plate 41.

[0023] In some embodiments, a limiting plate 33 is provided on the fixing column 32. The limiting plate 33 can be a semi-circular plate. A limiting groove 44 is provided at the top of the partition plate 41. The limiting groove 44 can be a semi-circular groove. The limiting groove 44 is inserted and matched with the limiting plate 33, which can limit the installation position of the partition plate 41 in the main air duct 3.

[0024] In some embodiments, a guiding strip 34 is provided at the bottom of the fixing column 32. The guiding strip 34 can be a semi-cylindrical shape. The guiding strip 34 extends to the nozzle of the main air duct 3. A guiding groove 45 is provided on one side of the fixing groove 43. The guiding groove 45 can be a semi-circular groove. The guiding groove 45 is inserted and matched with the guiding strip 34, which can provide a moving path for the partition plate 41, so that the partition plate 41 moves along the length direction of the guiding strip 34, avoiding the rotation of the partition plate 41 when the partition plate 41 is inserted into the main air duct 3, thereby affecting the positioning of the partition plate 41 with the fixing column 32 and further affecting the installation of the partition plate 41 in the main air duct 3.

[0025] The specific working principle is as follows:

[0026] Insert the guiding groove 45 on the partition plate 41 into the guiding strip 34 for insertion and matching, so that the partition plate 41 is inserted into the main air duct 3 along the length direction of the guiding strip 34. The fixing column 32 is inserted and matched with the fixing groove 43 to further limit the rotation of the partition plate 41 in the main air duct 3 until the limiting groove 44 is inserted and matched with the limiting plate 33, realizing the pre-positioning of the partition plate 41 in the main air duct 3. Use tools such as a screwdriver to screw the bolt or screw into the mounting hole 6 for matching, realizing the installation of the partition plate 41 on the fixing column 32. Cooperating with the wind cap 5, a double barrier for high-temperature materials is formed to prevent high-temperature materials from falling into the air chamber 12 and causing thermal damage to the supporting table 11; when the wind cap 5 falls during long-term operation, the high-temperature materials in the material chamber 21 fall into the partition plate 41 through the main air duct 3. Since the ventilation holes 42 on the partition plate 41 are smaller than the diameter of the high-temperature materials, the high-temperature materials cannot fall through the ventilation holes 42, forming a barrier to the high-temperature materials. Thus, when the wind cap 5 falls, the high-temperature materials are continuously blocked, realizing the protection of the lime kiln.

[0027] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A lime kiln protection device is provided on the kiln bottom device (1), and a lime kiln body (2) is provided on the kiln bottom device (1). The kiln bottom device (1) includes a supporting table (11), and an air chamber (12) is provided on the supporting table (11). The lime kiln body (2) includes a material chamber (21), and it is characterized in that: A main air duct (3) is provided between the air chamber (12) and the material chamber (21). A wind cap (5) is provided at the top of the main air duct (3). The wind cap (5) is arranged at the bottom of the material chamber (21). A protection device (4) is provided in the main air duct (3). The protection device (4) includes a partition board (41). The partition board (41) is coaxially arranged with the main air duct (3). A plurality of ventilation holes (42) are provided on the partition board (41). The aperture of the ventilation holes (42) is smaller than the diameter of the materials in the material chamber (21).

2. The lime kiln protection device according to claim 1, characterized in that: A wind collecting groove (13) is provided at the top of the air chamber (12). The bottom of the main air duct (3) penetrates through the wind collecting groove (13).

3. The lime kiln protection device according to claim 2, characterized in that: A wind collecting ring (31) is provided at the bottom of the main air duct (3). The wind collecting ring (31) is arranged in the wind collecting groove (13).

4. The lime kiln protection device according to claim 3, characterized in that: The cross sections of the wind collecting groove (13) and the wind collecting ring (31) are both isosceles trapezoids, and the diameters of the wind collecting groove (13) and the wind collecting ring (31) gradually decrease in the direction close to the material chamber (21).

5. The lime kiln protection device according to claim 1, characterized in that: At least three fixing columns (32) are provided at the bottom of the main air duct (3). The three fixing columns (32) are annularly distributed on the inner wall of the main air duct (3). At least three fixing grooves (43) are provided on the partition board (41). The three fixing grooves (43) are annularly distributed on the partition board (41). The fixing columns (32) are in plug-in fit with the fixing grooves (43). An installation hole (6) is provided through the bottom of the fixing column (32) and the partition board (41).

6. The lime kiln protection device according to claim 5, characterized in that: A limiting plate (33) is provided on the fixing column (32). A limiting groove (44) is provided at the top of the partition board (41). The limiting groove (44) is in plug-in fit with the limiting plate (33).

7. The lime kiln protection device according to claim 5, characterized in that: A guiding strip (34) is provided at the bottom of the fixing column (32). The guiding strip (34) extends to the pipe orifice of the main air duct (3). A guiding groove (45) is provided on one side of the fixing groove (43). The guiding groove (45) is in plug-in fit with the guiding strip (34).

8. A lime kiln protection device according to claim 1, characterized in that: The supporting platform (11) is formed by pouring concrete.

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