Automatic decoking device for thermocouple of waste incineration hearth

Abstract

The utility model relates to an automatic decoking device of a thermocouple of a waste incineration hearth, which comprises a decoking cutter, a rotating sleeve, a driving motor, a first gear and a second gear, the rotating sleeve is used for being sleeved on the outer side of the thermocouple, and the measuring end of the thermocouple in the hearth extends out of the rotating sleeve. The end, penetrating through the furnace wall, of the rotary sleeve is provided with a decoking cutter, the decoking cutter is located in a hearth and corresponds to the measuring end of the thermocouple, the other end of the rotary sleeve is provided with a second gear, the second gear is meshed with the first gear, and the first gear is installed at the output end of the driving motor. When the movable motor works, the first gear is driven to rotate, the first gear drives the second gear and the rotating sleeve to rotate, and the rotating sleeve drives the decoking cutter to rotate around the thermocouple in the circumferential direction, so that accumulated dust and coke blocks wrapped at the end of the thermocouple are removed, the temperature measurement accuracy of the thermocouple is guaranteed, and the service life of the thermocouple is greatly prolonged.

Description

An automatic decoking device for thermocouples in a waste incinerator furnace. Technical Field

[0001] This utility model relates to the technical field, specifically to an automatic decoking device for thermocouples in a waste incinerator furnace. Background Technology

[0002] In municipal solid waste incinerators, the combustion of waste produces a large amount of fly ash. This fly ash softens and melts at high temperatures, easily coking and coating the ends of thermocouples that extend into the furnace. If this coking is not regularly cleaned and maintained, the thermocouples will become heavily coated with coke, resulting in significantly lower furnace temperature readings. This can cause the furnace temperature to drop below 850°C, leading to environmental penalties. Furthermore, coking of the thermocouples easily causes corrosion, bending, and breakage, greatly shortening their lifespan and increasing spare parts maintenance costs.

[0003] In actual production, frequent on-site removal and cleaning of thermocouples not only increases the labor intensity of operators, but also the high-temperature thermocouples removed can easily cause burns. In addition, after the thermocouples are removed, they become brittle and prone to breakage, affecting their service life. Summary of the Invention

[0004] This utility model addresses existing technical problems by providing an automatic decoking device for thermocouples in a waste incinerator furnace.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: An automatic decoking device for thermocouples in a waste incineration furnace includes a decoking knife, a rotating sleeve, a drive motor, a first gear, and a second gear. The rotating sleeve is used to be fitted on the outside of the thermocouple. The measuring end of the thermocouple located in the furnace extends out of the rotating sleeve. The end of the rotating sleeve that passes through the furnace wall is provided with a decoking knife. The decoking knife is located in the furnace and corresponds to the measuring end of the thermocouple. The other end of the rotating sleeve is equipped with a second gear, which meshes with the first gear. The first gear is installed at the output end of the drive motor.

[0006] Based on the above technical solution, the present invention can be further improved as follows:

[0007] Preferably, a plurality of decoking blades are provided along the circumference of the rotating sleeve.

[0008] Preferably, the gap between the decoking blade and the outer wall of the thermocouple is 1mm-2mm.

[0009] Preferably, it also includes a protective sleeve, which is inserted into the furnace wall, and the rotating sleeve is rotatably disposed within the protective sleeve.

[0010] Preferably, the thermocouple is mounted on the furnace wall via a fixed bracket.

[0011] Preferably, the drive motor is mounted on the furnace wall via a second fixed bracket, which is L-shaped.

[0012] The beneficial effects of this invention are as follows: When the drive motor is working, it drives the first gear to rotate, which in turn drives the second gear and the rotating sleeve to rotate. The rotating sleeve drives the decoking blade to rotate around the thermocouple, thereby removing the accumulated ash and coke from the thermocouple end, ensuring the accuracy of thermocouple temperature measurement, and greatly improving the thermocouple's service life. The entire decoking process is fully automated, completely eliminating the safety risk of burns from manual operation. The thermocouple does not need to be removed from the furnace during the entire decoking process, and there is no interference with real-time temperature measurement data. This achieves fully automatic and undisturbed decoking, and the operation is simple and reliable. Attached Figure Description

[0013] Figure 1 is a schematic diagram of the automatic decoking device for thermocouples in the waste incineration furnace of this utility model.

[0014] The attached diagram is labeled as follows: 1. Thermocouple; 2. Coke removal knife; 3. Rotating sleeve; 4. Fixed bracket one; 5. Drive motor; 6. First gear; 7. Second gear; 8. Fixed bracket two; 9. Protective sleeve; 10. Furnace wall. Detailed Implementation

[0015] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0016] It should be noted that the terms "first," "second," etc., in the specification, claims, and drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0017] The terms “vertical,” “up,” “down,” “horizontal,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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. Therefore, they should not be construed as limitations on this utility model.

[0018] As shown in Figure 1, this utility model discloses an automatic decoking device for thermocouples in a waste incineration furnace, including a decoking knife 2, a rotating sleeve 3, a drive motor 5, a first gear 6, and a second gear 7. The rotating sleeve 3 is used to cover the outside of the thermocouple 1, providing protection for the thermocouple 1 and ensuring its service life. The thermocouple 1 is mounted on the furnace wall 10 via an L-shaped fixing bracket 4. The measuring end of the thermocouple 1 inside the furnace extends out of the rotating sleeve 3, ensuring the accuracy of the thermocouple 1's measurement results. The end of the rotating sleeve 3 that passes through the furnace wall 10 is equipped with a decoking knife 2. Located inside the furnace, the descaling blade 2 corresponds to the measuring end of the thermocouple 1. Specifically, the descaling blade 2 extends along the length of the thermocouple 1, with its length corresponding to the length of the measuring end of the thermocouple 1, ensuring effective descaling of the thermocouple 1 and thus guaranteeing the accuracy of the thermocouple 1's measurement results. A second gear 7 is installed at the other end of the rotating sleeve 3, meshing with a first gear 6. The first gear 6 is installed at the output end of the drive motor 5. The drive motor 5 is mounted on the furnace wall 10 via a fixed bracket 2 8, which is L-shaped, simple in structure, and easy to install. When the drive motor 5 is working, the cooperation of the first gear 6 and the second gear 7 drives the descaling blade 2 to rotate, removing accumulated ash and coke from the outside of the thermocouple 1, ensuring the accuracy of the thermocouple 1's measurement results.

[0019] Multiple decoking blades 2 are provided along the circumference of the rotating sleeve 3 to improve the decoking effect and efficiency. In this embodiment, two decoking blades 2 are provided, which can both ensure the decoking effect and reduce costs.

[0020] In an optional embodiment, three decoking blades 2 are arranged circumferentially. The number of decoking blades 2 can be appropriately increased according to the measurement environment of thermocouple 1 to ensure the decoking effect.

[0021] In this embodiment, the gap between the descaling blade 2 and the outer wall of the thermocouple 1 is 1mm-2mm. This ensures the removal of accumulated dust and coke from the surface of the thermocouple 1, solving the problem of a large amount of coke covering the thermocouple 1 and affecting its measurement accuracy, while also preventing the descaling blade 2 from damaging the thermocouple 1 and ensuring its service life.

[0022] The automatic decoking device for the thermocouple in the waste incinerator furnace also includes a protective sleeve 9, which is inserted into the furnace wall 10. The rotating sleeve 3 is rotatably installed inside the protective sleeve 9. The protective sleeve 9 protects the rotating sleeve 3. There is a gap between the inner wall of the protective sleeve 9 and the outer wall of the rotating sleeve 3 to ensure that the rotating sleeve 3 can rotate normally.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic decoking device for thermocouples in a waste incinerator furnace, characterized in that, The device includes a decoking knife (2), a rotating sleeve (3), a drive motor (5), a first gear (6), and a second gear (7). The rotating sleeve (3) is used to fit around the outside of the thermocouple (1). The measuring end of the thermocouple (1) located inside the furnace extends out of the rotating sleeve (3). The end of the rotating sleeve (3) that passes through the furnace wall (10) is provided with a decoking knife (2). The decoking knife (2) is located inside the furnace and corresponds to the measuring end of the thermocouple (1). The other end of the rotating sleeve (3) is equipped with a second gear (7). The second gear (7) meshes with the first gear (6). The first gear (6) is installed at the output end of the drive motor (5).

2. The automatic decoking device for thermocouples in a waste incinerator furnace according to claim 1, characterized in that, The decoking blade (2) is provided in multiple ways along the circumference of the rotating sleeve (3).

3. The automatic decoking device for thermocouples in a waste incinerator furnace according to claim 2, characterized in that, The gap between the decoking knife (2) and the outer wall of the thermocouple (1) is 1mm-2mm.

4. The automatic decoking device for thermocouples in a waste incinerator furnace according to claim 3, characterized in that, It also includes a protective sleeve (9), which is inserted into the furnace wall (10), and the rotating sleeve (3) is rotatably disposed in the protective sleeve (9).

5. The automatic decoking device for thermocouples in a waste incinerator furnace according to claim 1, characterized in that, The thermocouple (1) is mounted on the furnace wall (10) by a fixed bracket (4).

6. The automatic decoking device for thermocouples in a waste incinerator furnace according to claim 1, characterized in that, The drive motor (5) is mounted on the furnace wall (10) via a fixed bracket (8), which is L-shaped.

Images