Lime kiln burner nozzle structure

Abstract

The utility model discloses a lime kiln burner nozzle structure which comprises a connecting pipe, a nozzle body is arranged on the connecting pipe, a connecting port is arranged on the connecting pipe, the nozzle body is connected with the connecting port in an inserted mode, the nozzle body is connected with the connecting pipe through a flange, a sealing ring is arranged between the nozzle body and the connecting pipe, and the nozzle body is connected with the connecting pipe through a flange. A filtering assembly is arranged on the spray head body, a collecting box is arranged on the spray head body, and the filtering assembly and the collecting box are correspondingly arranged. By arranging the structures such as the filter plate and the like, the filter plate can effectively intercept solid particles in fuel or air and prevent the solid particles from entering the nozzle during use, so that the occurrence of nozzle blockage is reduced, the service life of the nozzle is prolonged, the maintenance frequency and cost are reduced, the cleanness of the fuel and the air is ensured, and the service life of the nozzle is prolonged. And mixing of fuel and air is optimized, combustion is more sufficient, fuel waste is reduced, and the operation cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of burner nozzle technology, and in particular relates to a structure of a lime kiln burner nozzle. Background Technology

[0002] As a core component of low-NOx lime kilns, the burner plays a crucial role in efficiently mixing fuel and air and igniting it to generate a high-temperature flame. This flame drives the calcination process of limestone, converting it into lime, which is widely used in various industrial sectors such as building materials and metallurgy. The working environment of lime kilns is extremely harsh, requiring them to withstand not only high temperatures but also corrosive gases and large amounts of dust generated by limestone decomposition and fuel combustion.

[0003] Among these environmental factors, dust is particularly prominent, posing a significant threat to the stable operation of burners. The limestone dust and combustion fumes permeating the lime kiln, due to their fine particles and adhesiveness, easily accumulate in critical parts of the burner, such as nozzles and internal channels, leading to nozzle blockage, obstructed fuel injection, and directly affecting combustion efficiency and flame stability. Furthermore, the hard particles in the dust, under high-speed airflow and high-temperature conditions, accelerate wear on burner components, shorten equipment lifespan, and increase maintenance costs. More seriously, dust accumulation can also form flammable or explosive mixtures, which, under suitable conditions, can easily trigger fires or explosions, posing significant risks to personnel safety and production equipment.

[0004] According to the authorization announcement number CN211650228U, a burner nozzle is provided, which relates to the field of burner technology. It includes a burner and a nozzle. The burner nozzle is provided with a fixing plate, and the fixing plate is integrally formed with the burner nozzle shell. A telescopic tube is passed through the center of the fixing plate, and the gas pipe passes through the telescopic tube and is welded and fixed. The fixing plate is hinged to the burner. A fixing shaft and a fixing plate mounting seat are respectively provided on both sides of the fixing plate. The burner is provided with a burner mounting seat and a shaft hole. The fixing shaft on the fixing plate is inserted into the shaft hole. Both the fixing plate mounting seat and the burner mounting seat are provided with threaded holes. The fixing plate mounting seat and the burner mounting seat are fixed by bolts screwed into the threaded holes.

[0005] However, existing technologies have some problems: due to the large amount of dust inside the lime kiln, dust can enter the nozzle during burner operation, easily causing carbon buildup or blockage, leading to reduced combustion efficiency, unstable flame, increased pollutant emissions, equipment overheating or damage, and consequently, energy waste, increased operating costs, and shortened equipment lifespan. Therefore, we propose a new nozzle structure for a lime kiln burner. Utility Model Content

[0006] In view of the problems existing in the prior art, the purpose of this utility model is to provide a nozzle structure for a lime kiln burner. By setting up a filter plate and other structures, the filter plate can effectively intercept solid particles in the fuel or air during use, preventing them from entering the nozzle, thereby reducing nozzle clogging, extending the nozzle's service life, and reducing maintenance frequency and costs.

[0007] This utility model is implemented as follows: a nozzle structure for a lime kiln burner includes a connecting pipe, a nozzle body is provided on the connecting pipe, a connecting port is provided on the connecting pipe, the nozzle body is inserted into the connecting port, the nozzle body and the connecting pipe are connected by a flange, a sealing ring is provided between the nozzle body and the connecting pipe, a filter assembly is provided on the nozzle body, a collection box is provided on the nozzle body, the filter assembly and the collection box are correspondingly arranged, and the filter assembly and the collection box are distributed vertically.

[0008] Optionally, a first flange is provided on the connecting pipe, and a second flange is provided on the nozzle body. A first sealing groove is provided on the first flange, and a second sealing groove is provided on the second flange. The first sealing groove and the second sealing groove are correspondingly provided. The first flange and the second flange are connected by bolts. One side of the sealing ring contacts the first sealing groove, and the other side of the sealing ring contacts the second sealing groove.

[0009] Optionally, the connecting pipe is provided with a receiving groove, and the nozzle body is provided with a plug pipe, with the receiving groove corresponding to the plug pipe.

[0010] Optionally, the nozzle body is provided with a nozzle tube, and the nozzle tube has an installation groove inside, and a rotating seat is provided in the installation groove.

[0011] Optionally, the filter assembly includes a filter plate, the lower end of which is provided with a rotating shaft, the rotating shaft being rotatably connected to a rotating seat, the filter plate being movable within a mounting groove, and a transmission box being provided on the nozzle pipe.

[0012] Optionally, the filter plate has a connection hole, the nozzle tube has a sliding hole, and a spring is installed in the connection hole. One end of the spring is fixedly connected to the connection hole, and the other end of the spring is in contact with the sliding hole.

[0013] Optionally, the filter plate is provided with protrusions, the transmission box is provided with a motor, and the output end of the motor is provided with a cam, which contacts the protrusions.

[0014] Optionally, the collection box is provided with a drawer, the nozzle pipe is provided with a guide port, and the collection box is provided with a guide plate, with the guide port and the guide plate being provided in correspondence.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By setting up structures such as filter plates, the filter plates can effectively intercept solid particles in fuel or air during use, preventing them from entering the nozzle, thereby reducing nozzle clogging, extending nozzle life, reducing maintenance frequency and costs, and by ensuring the cleanliness of fuel and air, optimizing fuel-air mixing, making combustion more complete, reducing fuel waste, and lowering operating costs.

[0017] 2. By incorporating a motor and other structural elements, the motor drives a cam to rotate, which in turn strikes the protrusions on the filter plate, causing the filter plate to vibrate continuously. During operation, this vibration effectively prevents impurities from accumulating on the filter plate. The continuous mechanical vibration shakes off particles adhering to the filter plate, reducing the risk of clogging and extending the filter plate's service life. Furthermore, the self-cleaning function reduces the frequency of manual maintenance, lowering maintenance costs and time, and improving equipment operating efficiency.

[0018] 3. By incorporating connecting pipes and insert pipes, the nozzle body is connected to the burner via flanges. Firstly, the flange connection structure is simple and robust, ensuring a tight connection between the nozzle body and the burner, preventing fuel leakage, and improving system safety and reliability. Secondly, the sealing ring further enhances sealing performance, effectively preventing gas or liquid leakage under high temperature and high pressure environments, ensuring the stability of the combustion process.

[0019] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure provided by this utility model;

[0021] Figure 2 This is a schematic diagram of the connecting pipe structure provided by this utility model;

[0022] Figure 3 This is a cross-sectional schematic diagram of the nozzle body structure provided by this utility model;

[0023] Figure 4 This utility model provides Figure 3 Enlarged schematic diagram of part A;

[0024] Figure 5 This utility model provides Figure 3 Enlarged schematic diagram of part B;

[0025] Figure 6 This is a cross-sectional schematic diagram of the connection hole structure provided by this utility model.

[0026] In the diagram: 1. Connecting pipe; 2. Connecting port; 21. First flange; 22. Receiving groove; 23. First sealing groove; 24. Sealing ring; 25. Mounting groove; 26. Rotating seat; 27. Transmission box; 3. Nozzle body; 31. Insertion pipe; 32. Second flange; 33. Second sealing groove; 34. Nozzle pipe; 4. Filter assembly; 41. Rotating shaft; 42. Filter plate; 43. Connecting hole; 44. Sliding hole; 45. Spring; 46. Protrusion; 47. Motor; 48. Cam; 5. Collection box; 51. Drawer box; 52. Material guide port; 53. Material guide plate. Detailed Implementation

[0027] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0028] like Figures 1 to 6 As shown in the figure, the present invention provides a lime kiln burner nozzle structure, including a connecting pipe 1, a nozzle body 3 provided on the connecting pipe 1, a connecting port 2 provided on the connecting pipe 1, the nozzle body 3 being inserted into the connecting port 2, the nozzle body 3 being connected to the connecting pipe 1 by a flange, a sealing ring 24 being provided between the nozzle body 3 and the connecting pipe 1, a filter assembly 4 being provided on the nozzle body 3, a collection box 5 being provided on the nozzle body 3, the filter assembly 4 and the collection box 5 being correspondingly arranged, and the filter assembly 4 and the collection box 5 being distributed vertically.

[0029] Furthermore, the lime kiln burner nozzle structure provided in this embodiment of the invention, through the combination of the filter assembly 4 and the collection box 5, offers multiple advantages. First, the filter assembly 4 effectively filters out impurities and particulate matter entering the nozzle body 3, ensuring unobstructed flow to the burner nozzle and preventing reduced combustion efficiency and equipment malfunctions due to blockage, thereby improving the production efficiency and stability of the lime kiln. Second, the collection box 5 allows for the centralized collection of filtered impurities and particulate matter, facilitating subsequent processing and cleaning, and preventing secondary pollution of the environment and equipment. In addition, the nozzle body 3 and the connecting pipe 1 are connected by a flange and equipped with a sealing ring 24, ensuring the sealing and stability of the structure, further enhancing the working performance and safety of the burner nozzle.

[0030] Specifically, the connecting pipe 1 is provided with a receiving groove 22, the nozzle body 3 is provided with a plug pipe 31, the receiving groove 22 is provided with the plug pipe 31, the connecting pipe 1 is provided with a first flange 21, the nozzle body 3 is provided with a second flange 32, the first flange 21 is provided with a first sealing groove 23, the second flange 32 is provided with a second sealing groove 33, the first sealing groove 23 and the second sealing groove 33 are provided with corresponding positions, the first flange 21 and the second flange 32 are connected by bolts, one side of the sealing ring 24 contacts the first sealing groove 23, and the other side of the sealing ring 24 contacts the second sealing groove 33.

[0031] Furthermore, in this invention, the receiving groove 22 on the connecting pipe 1 cleverly corresponds to the insertion pipe 31 on the nozzle body 3, achieving a stable connection between the nozzle body 3 and the connecting pipe 1, simplifying the installation process, and improving assembly efficiency. Simultaneously, the first flange 21 on the connecting pipe and the second flange 32 on the nozzle body 3 are tightly connected by bolts. Combined with the corresponding arrangement of the first sealing groove 23 and the second sealing groove 33, and the application of the sealing ring 24, absolute sealing at the connection point is ensured, effectively preventing gas leakage during combustion, protecting operator safety, and avoiding resource waste and environmental pollution.

[0032] Specifically, the nozzle body 3 is provided with a nozzle tube 34, and the nozzle tube 34 has an installation groove 25 inside, and a rotating seat 26 is provided in the installation groove 25.

[0033] Specifically, the filter assembly 4 includes a filter plate 42, with a rotating shaft 41 at the lower end of the filter plate 42. The rotating shaft 41 is rotatably connected to the rotating seat 26. The filter plate 42 moves within the mounting groove 25. A connecting hole 43 is provided on the filter plate 42. A sliding hole 44 is provided in the nozzle pipe 34. A spring 45 is provided in the connecting hole 43. One end of the spring 45 is fixedly connected to the connecting hole 43, and the other end of the spring 45 contacts the sliding hole 44. A transmission box 27 is provided on the nozzle pipe 34. A protrusion 46 is provided on the filter plate 42. A motor 47 is provided in the transmission box 27. A cam 48 is provided on the output end of the motor 47. The cam 48 contacts the protrusion 46.

[0034] Furthermore, the motor 47 drives the cam 48 to rotate, thereby striking the protrusions 46 on the filter plate 42, causing the filter plate 42 to vibrate continuously. During operation, the vibration effectively prevents impurities from accumulating on the filter plate 42. The continuous mechanical vibration shakes off the particles attached to the filter plate 42, reducing the risk of clogging and extending the service life of the filter plate 42. Secondly, the self-cleaning function reduces the frequency of manual maintenance, lowers maintenance costs and time, and improves the operating efficiency of the equipment.

[0035] Specifically, the collection box 5 is equipped with a drawer box 51, the nozzle pipe 34 is provided with a guide port 52, and the collection box 5 is provided with a guide plate 53, with the guide port 52 and the guide plate 53 being provided in a corresponding manner.

[0036] Furthermore, when it is necessary to clean the impurities in the collection box 5, simply pull out the extraction box 51; there is no need to disassemble the entire collection box 5, simplifying the cleaning process. At the same time, the design of the guide plate 53 ensures that impurities can smoothly slide into the extraction box 51, avoiding the retention and accumulation of impurities in the collection box 5, further improving cleaning efficiency and convenience, and providing strong support for the long-term stable operation of the lime kiln burner nozzles.

[0037] Working Principle: The design incorporates a filter plate 42, a motor 47-driven vibration structure, and flange connections, effectively improving the burner's performance and reliability. The filter plate 42 intercepts solid particles from fuel or air, preventing them from entering the nozzle, reducing the risk of clogging, extending nozzle life, and optimizing fuel-air mixing to improve combustion efficiency and reduce fuel waste and operating costs. The motor 47 drives the cam 48 to rotate and strike the protrusions 46 on the filter plate 42, causing the filter plate 42 to vibrate continuously, shaking off particles adhering to the plate, achieving a self-cleaning function, reducing the frequency of manual maintenance, and improving equipment operating efficiency.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lime kiln burner nozzle structure comprising a connecting pipe (1), characterized in that: The connecting pipe (1) is provided with a spray head body (3), the connecting pipe (1) is provided with a connecting port (2), the spray head body (3) is inserted with the connecting port (2), the spray head body (3) is connected with the connecting pipe (1) by flange, a sealing ring (24) is arranged between the spray head body (3) and the connecting pipe (1), the spray head body (3) is provided with a filter assembly (4), the spray head body (3) is provided with a collection box (5), the filter assembly (4) is correspondingly arranged with the collection box (5), and the filter assembly (4) and the collection box (5) are distributed in an up-down mode.

2. A lime kiln burner nozzle structure according to claim 1, characterized in that: The connecting pipe (1) is provided with a first flange (21), the spray head body (3) is provided with a second flange (32), the first flange (21) is provided with a first sealing groove (23), the second flange (32) is provided with a second sealing groove (33), the first sealing groove (23) and the second sealing groove (33) are correspondingly arranged, the first flange (21) and the second flange (32) are connected by bolts, one side of the sealing ring (24) is in contact with the first sealing groove (23), and the other side of the sealing ring (24) is in contact with the second sealing groove (33).

3. A lime kiln burner nozzle structure according to claim 1, characterized in that: The connecting pipe (1) is provided with a first flange (21), the spray head body (3) is provided with a second flange (32), the first flange (21) is provided with a first sealing groove (23), the second flange (32) is provided with a second sealing groove (33), the first sealing groove (23) and the second sealing groove (33) are correspondingly arranged, the first flange (21) and the second flange (32) are connected by bolts, one side of the sealing ring (24) is in contact with the first sealing groove (23), and the other side of the sealing ring (24) is in contact with the second sealing groove (33).

4. A lime kiln burner nozzle structure according to claim 1, characterized in that: The connecting pipe (1) is provided with a first flange (21), the spray head body (3) is provided with a second flange (32), the first flange (21) is provided with a first sealing groove (23), the second flange (32) is provided with a second sealing groove (33), the first sealing groove (23) and the second sealing groove (33) are correspondingly arranged, the first flange (21) and the second flange (32) are connected by bolts, one side of the sealing ring (24) is in contact with the first sealing groove (23), and the other side of the sealing ring (24) is in contact with the second sealing groove (33).

5. A lime kiln burner nozzle structure according to claim 4, characterised in that: The spray head body (3) is provided with a spray head pipe (34), the inside of the spray head pipe (34) is provided with a mounting groove (25), and the mounting groove (25) is provided with a rotating seat (26).

6. A lime kiln burner nozzle structure according to claim 5, characterised in that: The filter assembly (4) comprises a filter plate (42), the lower end of the filter plate (42) is provided with a rotating shaft (41), the rotating shaft (41) is rotationally connected with the rotating seat (26), the filter plate (42) is movable in the mounting groove (25), and the spray head pipe (34) is provided with a transmission box (27).

7. A lime kiln burner nozzle structure according to claim 5, characterized in that: The filter plate (42) is provided with a connecting hole (43), the spray head pipe (34) is provided with a sliding hole (44), the connecting hole (43) is provided with a spring (45), one end of the spring (45) is fixedly connected with the connecting hole (43), and the other end of the spring (45) is in contact with the sliding hole (44).

8. A lime kiln burner nozzle structure according to claim 4, characterized in that: The filter plate (42) is provided with a lug (46), the transmission box (27) is provided with a motor (47), the output end of the motor (47) is provided with a cam (48), and the cam (48) is in contact with the lug (46). The collection box (5) is provided with a suction box (51), the spray head pipe (34) is provided with a material guide opening (52), the collection box (5) is provided with a material guide plate (53), and the material guide opening (52) and the material guide plate (53) are correspondingly arranged.

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