Automatic telescopic device of sludge in-furnace atomization spray gun

Abstract

The utility model discloses an automatic telescopic device of a sludge in-furnace atomization spray gun. The automatic telescopic device comprises a furnace wall pre-embedded sleeve, the sludge atomization spray gun, a guide rail, a telescopic cylinder and a mounting flange, the furnace wall pre-embedded sleeve is pre-embedded and fixed on the furnace wall, the extending end of the furnace wall pre-embedded sleeve is provided with an end flange, and the furnace wall pre-embedded sleeve is provided with a cooling tuyere I communicated with the interior of the furnace wall pre-embedded sleeve; the mounting flange is connected with the end flange through a bolt, the sludge atomizing spray gun is in sealed sliding connection with the mounting flange, the guide rail is fixedly connected to the outer wall of the sludge atomizing spray gun, and the mounting flange is provided with a guide rail groove matched with the guide rail; the telescopic cylinder is arranged between the furnace wall pre-embedded sleeve and the sludge atomizing spray gun and is used for driving the sludge atomizing spray gun to slide relative to the furnace wall pre-embedded sleeve; the sludge atomizing spray gun is provided with a sludge feeding hole, an atomizing air hole and a cooling air hole II. The utility model can prolong the service life of the spray gun, reduce the labor intensity, and is convenient to use, simple and reasonable in structure and reliable in work.

Description

Technical Field

[0001] This utility model relates to the technical field of sludge treatment equipment, specifically to an automatic telescopic device for a sludge atomizing spray gun entering the furnace. Background Technology

[0002] Garbage is solid waste generated in daily life and production. Garbage pits inevitably contain sludge. With increasingly stringent environmental protection requirements, urban sludge treatment has become widespread. Currently, the main methods for treating urban sludge are landfill, composting, and incineration. In recent years, new sludge treatment processes have been developed, incorporating sludge into the garbage incineration process. The sludge is pumped into the furnace for direct combustion. This process has low investment costs, high efficiency, and a higher return on investment, and is now widely used. For this sludge incineration process, sludge atomizing spray guns have been developed. Compressed air is used to atomize the sludge and spray it into the furnace, ensuring complete and efficient combustion. (See attached image) Figure 7 As shown.

[0003] However, the furnace temperature of a waste incinerator ranges from 900 to 11000°C. The sludge atomizing spray guns, made of 301S material, operate normally during spraying, cooled by the sludge and cooling air. However, when the spray guns stop working, the tip remains in a high-temperature environment, severely impacting their lifespan. To ensure the lifespan of the spray guns, a disassembly method is currently used: the spray gun is installed during operation and removed when the machine is stopped. Due to the limited working space and poor working environment, the labor intensity for workers is very high, especially when the machine is frequently shut down.

[0004] Therefore, a sludge-feeding atomizing spray gun device that can improve the service life of atomizing spray guns, reduce labor intensity, and is easy to use is urgently needed for research. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the defects of the above-mentioned technology and provide an automatic telescopic device for sludge atomizing spray guns entering the furnace.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is an automatic telescopic device for sludge atomizing spray guns entering the furnace: including a furnace wall pre-embedded sleeve, a sludge atomizing spray gun, a guide rail, a telescopic cylinder, and a mounting flange;

[0007] The furnace wall pre-embedded sleeve is pre-embedded and fixed on the furnace wall, with one end extending into the furnace chamber. The protruding end of the furnace wall pre-embedded sleeve is provided with an end flange, and the furnace wall pre-embedded sleeve is provided with a cooling air vent communicating with its interior.

[0008] The mounting flange and the end flange are connected by bolts. The barrel of the sludge atomizing spray gun is inserted into the pre-embedded sleeve of the furnace wall and is slidably connected to the mounting flange. There is a gap between the outer wall of the barrel of the sludge atomizing spray gun and the inner wall of the pre-embedded sleeve of the furnace wall. The guide rail is fixed to the outer wall of the sludge atomizing spray gun. The mounting flange is provided with a guide rail groove that matches the guide rail.

[0009] The telescopic cylinder is located between the furnace wall pre-embedded sleeve and the sludge atomizing spray gun, and is used to drive the sludge atomizing spray gun to slide relative to the furnace wall pre-embedded sleeve.

[0010] The sludge atomizing spray gun is equipped with a sludge inlet, an atomizing air outlet, and a cooling air outlet.

[0011] Furthermore, a central flange is provided on the outer side of the pre-embedded sleeve in the furnace wall near the protruding end. The central flange is fixed to the mounting bracket by bolts. A connecting seat is provided on the sludge atomizing spray gun. One end of the telescopic cylinder is connected to the mounting bracket, and the other end of the telescopic cylinder is connected to the connecting seat.

[0012] Furthermore, the mounting flange is provided with four set screws. Tightening the set screws causes the ends of the set screws to abut against the outer wall of the sludge atomizing spray gun, thereby fixing the sludge atomizing spray gun.

[0013] Furthermore, both the end flange and the middle flange are provided with 12 mounting holes, and the mounting holes on the end flange correspond one-to-one with the mounting holes on the middle flange. The corresponding connecting holes are coaxial. The mounting bracket can be installed on the middle flange by rotating it every 30°, and the mounting flange can also be installed on the end flange by rotating it every 30°.

[0014] Furthermore, the telescopic cylinder is either a pneumatic cylinder or a hydraulic cylinder.

[0015] The advantages of this invention compared to existing technologies are as follows: During operation, the nozzle of the sludge atomizing spray gun extends into the furnace; when stopped, the nozzle retracts from the furnace, preventing the nozzle tip from being constantly exposed to high temperatures. Simultaneously, cooling air is injected through the cooling vent. During operation, the cooling air cools the outer wall of the sludge atomizing spray gun; when stopped, the cooling air enters the furnace through a pre-embedded sleeve in the furnace wall, isolating the high-temperature gas in the furnace from contacting the sludge atomizing spray gun, further protecting the spray gun and thus extending its service life. Disassembly during shutdown is unnecessary, reducing labor intensity. The use of a telescopic cylinder to drive the sludge atomizing spray gun makes it convenient to use and allows for both local and remote control. The structure is simple and reasonable, and the operation is reliable. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the working state of the automatic telescopic device for sludge atomizing spray guns entering the furnace according to this utility model.

[0017] Figure 2 This is a schematic diagram of the automatic telescopic device for sludge atomizing spray guns entering the furnace in the shutdown state.

[0018] Figure 3 This is a schematic diagram of the pre-embedded sleeve in the furnace wall of an automatic telescopic device for sludge atomizing spray guns used in furnaces, according to this utility model.

[0019] Figure 4 This is a schematic diagram of the sludge atomizing spray gun, which is part of the automatic telescopic device for sludge feeding into a furnace according to this utility model.

[0020] Figure 5 This is a schematic diagram of the installation bracket for an automatic telescopic device for a sludge atomizing spray gun in a furnace, according to this utility model.

[0021] Figure 6 This is a schematic diagram of the installation flange of an automatic telescopic device for a sludge atomizing spray gun for furnace feeding, which is a utility model.

[0022] Figure 7 This is a schematic diagram of the current stage of sludge atomization and incineration.

[0023] As shown in the figure:

[0024] 1. Furnace wall embedded sleeve; 2. Sludge atomizing spray gun; 3. Guide rail; 4. Telescopic cylinder; 5. Mounting bracket; 6. Mounting flange; 7. End flange; 8. Cooling air vent one; 9. Guide rail groove; 10. Sludge inlet; 11. Atomizing air vent; 12. Cooling air vent two; 13. Middle flange; 14. Connecting seat; 15. Set screw. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Example 1, in conjunction with Appendix Figure 1-6 An automatic telescopic device for a sludge atomizing spray gun for furnace feeding includes a furnace wall pre-embedded sleeve 1, a sludge atomizing spray gun 2, a guide rail 3, a telescopic cylinder 4, and a mounting flange 6.

[0027] The furnace wall pre-embedded sleeve 1 is pre-embedded and fixed on the furnace wall, and one end extends into the furnace chamber. The protruding end of the furnace wall pre-embedded sleeve 1 is provided with an end flange 7, and the furnace wall pre-embedded sleeve 1 is provided with a cooling air vent 8 communicating with its interior.

[0028] The mounting flange 6 and the end flange 7 are connected by bolts. The barrel of the sludge atomizing spray gun 2 is inserted into the furnace wall pre-embedded sleeve 1 and is slidably connected to the mounting flange 6. There is a gap between the outer wall of the barrel of the sludge atomizing spray gun 2 and the inner wall of the furnace wall pre-embedded sleeve 1. The guide rail 3 is fixed to the outer wall of the sludge atomizing spray gun 2. The mounting flange 6 is provided with a guide rail groove 9 that matches the guide rail 3. The guide rail 3 slides along the guide rail groove 9 to prevent the sludge atomizing spray gun 2 from rotating during operation.

[0029] The telescopic cylinder 4 is located between the furnace wall pre-embedded sleeve 1 and the sludge atomizing spray gun 2, and is used to drive the sludge atomizing spray gun 2 to slide relative to the furnace wall pre-embedded sleeve 1.

[0030] The sludge atomizing spray gun 2 is equipped with a sludge inlet 10, an atomizing air outlet 11, and a cooling air outlet 12.

[0031] During operation, the telescopic cylinder 4 retracts, moving the sludge atomizing spray gun 2. The nozzle of the sludge atomizing spray gun 2 extends into the furnace. Sludge enters through the sludge feed inlet 10, and compressed air enters through the atomizing air inlet 11, atomizing the sludge through the sludge atomizing spray gun 2 and spraying it into the furnace, allowing the sludge to be fully and efficiently burned in the furnace. During this process, cooling air enters through cooling air inlet 2 12 to cool the sludge atomizing spray gun 2. At the same time, cooling air is also injected through cooling air inlet 8, cooling the outer wall of the sludge atomizing spray gun 2. After spraying stops, the telescopic cylinder 4 extends, moving the sludge atomizing spray gun 2. The nozzle of the sludge atomizing spray gun 2 withdraws from the furnace, preventing the end of the sludge atomizing spray gun 2 from being in a high-temperature environment. At the same time, cooling air enters the furnace through cooling air inlet 8 and the furnace wall pre-embedded sleeve 1, isolating the high-temperature gas in the furnace from contacting the sludge atomizing spray gun 2, protecting the spray gun.

[0032] In this specific embodiment, a central flange 13 is provided on the outer side of the pre-embedded sleeve 1 near the protruding end of the furnace wall. The central flange 13 is fixed to the mounting bracket 5 by bolts. A connecting seat 14 is provided on the sludge atomizing spray gun 2. One end of the telescopic cylinder 4 is connected to the mounting bracket 5, and the other end of the telescopic cylinder 4 is connected to the connecting seat 14, which is detachable.

[0033] In this specific embodiment, the mounting flange 6 is provided with 4 set screws 15. When the set screws 15 are tightened, the ends of the set screws 15 abut against the outer wall of the sludge atomizing spray gun 2, thereby fixing the sludge atomizing spray gun 2 and preventing axial movement when it is working or stopped for a long time.

[0034] In this specific embodiment, both the end flange 7 and the middle flange 13 are provided with 12 mounting holes, and the mounting holes on the end flange 7 correspond one-to-one with the mounting holes on the middle flange 13. The corresponding connecting holes are coaxial. The mounting bracket 5 can be installed on the middle flange 13 by rotating it every 30°. At the same time, the mounting flange 6 can also be installed on the end flange 7 by rotating it every 30°. This allows the sludge inlet 10 of the sludge atomizing spray gun 2 to be installed by rotating it every 30°, which can meet the installation requirements of the sludge inlet 10 in different directions for different projects and working conditions.

[0035] In this specific embodiment, the telescopic cylinder 4 is a pneumatic cylinder or a hydraulic cylinder. The pneumatic cylinder or hydraulic cylinder is driven by an air station or a hydraulic station to realize the automatic extension and retraction of the sludge atomizing spray gun 2. It is controlled by a solenoid valve and can be operated locally and remotely.

[0036] In this specific embodiment, the sludge pipes and air pipes connected to the sludge atomizing spray gun 2 are all connected by flexible hoses to satisfy the telescopic function of the sludge atomizing spray gun 2.

[0037] In the description of the embodiments of this utility model, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0038] Furthermore, the use of terms such as "horizontal," "vertical," and "sag" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0039] In the description of the embodiments of this utility model, "a plurality of" means at least two.

[0040] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A sludge into the furnace atomizing lance automatic telescopic device, characterized in that: The device comprises a furnace wall embedded sleeve (1), a sludge atomizing lance (2), a guide rail (3), a telescopic cylinder (4) and a mounting flange (6); The furnace wall embedded sleeve (1) is fixedly embedded on the furnace wall and has one end extending into the hearth, and the extending end of the furnace wall embedded sleeve (1) is provided with an end flange (7), and the furnace wall embedded sleeve (1) is provided with a cooling air port (8) in communication with the inside thereof, The mounting flange (6) is connected with the end flange (7) through bolts, the lance tube of the sludge atomizing lance (2) is inserted into the inside of the furnace wall embedded sleeve (1) and is in sealed sliding connection with the mounting flange (6), a gap is left between the outer wall of the lance tube of the sludge atomizing lance (2) and the inner wall of the furnace wall embedded sleeve (1), the guide rail (3) is fixedly connected to the outer wall of the sludge atomizing lance (2), and the mounting flange (6) is provided with a guide rail groove (9) matched with the guide rail (3); The telescopic cylinder (4) is arranged between the furnace wall embedded sleeve (1) and the sludge atomizing lance (2) and is used for driving the sludge atomizing lance (2) to slide relative to the furnace wall embedded sleeve (1); The sludge atomizing lance (2) is provided with a sludge feeding port (10), an atomizing air port (11) and a cooling air port (12).

2. The automatic telescopic device of sludge into the furnace atomizing lance according to claim 1, characterized in that: The outer side of the furnace wall embedded sleeve (1) close to the extending end is provided with a middle flange (13), the middle flange (13) is fixedly connected with a mounting bracket (5) through bolts, the sludge atomizing lance (2) is provided with a connecting seat (14), one end of the telescopic cylinder (4) is connected with the mounting bracket (5), and the other end of the telescopic cylinder (4) is connected with the connecting seat (14).

3. The automatic telescopic device of sludge into the furnace atomizing lance according to claim 1, characterized in that: The mounting flange (6) is provided with four jackscrews (15), the jackscrews (15) are tightened, the end portions of the jackscrews (15) abut against the outer wall of the sludge atomizing lance (2), the sludge atomizing lance (2) is fixed, and axial movement of the sludge atomizing lance (2) is prevented when the sludge atomizing lance (2) works or is stopped for a long time.

4. The automatic telescopic device of sludge into the furnace atomizing lance according to claim 2, characterized in that: The end flange (7) and the middle flange (13) are both provided with twelve mounting holes, the mounting holes on the end flange (7) correspond to the mounting holes on the middle flange (13) one by one, the corresponding connecting holes are coaxial, the mounting bracket (5) can be installed at every 30° on the middle flange (13), and the mounting flange (6) can also be installed at every 30° on the end flange (7).

5. The automatic telescoping device for sludge into the furnace atomizing lance according to any one of claims 1-4, characterized in that: The telescopic cylinder (4) is a gas cylinder or an oil cylinder.

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