Ash removal device for waste heat boiler

Abstract

The utility model relates to the technical field of boiler maintenance, in particular to a waste heat boiler ash removal device which comprises a device body, the lower end of the device body is connected with an installation box through a rotating assembly, a first motor and a rotating shaft are arranged in the installation box, worm wheels are installed in the middle of a rod body of the rotating shaft, and a worm is arranged between the two worm wheels. The upper end of the worm is connected with the output end of the first motor; parts such as the first motor, the worm gear and the worm which are used for controlling unfolding are all wrapped by the mounting box, and a part which is used for controlling the liquid spraying part to stretch is wrapped in the linkage plate and the adjusting plate, so that the driving part cannot be directly exposed to the outside, the driving part can be prevented from being damaged by sewage during ash removal, and the service life of the driving part is prolonged. And electrical components are simplified under the condition that the cleaning effect is guaranteed, so that the failure rate and the cost are reduced, and the maintenance convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of boiler maintenance technology, and in particular to a waste heat boiler ash removal device. Background Technology

[0002] Boilers require regular maintenance during use, such as ash removal, to prevent ash accumulation from affecting their normal operation. A Chinese patent application (application number 202323160355.0) discloses a waste heat boiler ash removal device, including a connecting rod and a connecting block connected by an electric telescopic rod. The device further includes: a movable plate hinged to both sides of the connecting block surface, with a first gear fixedly connected to the rotating shaft surface at one end of the movable plate; an electric push rod disposed on the surface of the connecting block, with a concave rack plate bolted to its output end, and both sides of the concave rack plate meshing with two first gears; a sliding plate movably connected inside the movable plate, with a nozzle fixedly connected to one end of the sliding plate; a drive structure inside the movable plate for moving the sliding plate; and unblocking structures disposed on both sides of the connecting rod surface for clearing impurities clogging the nozzles.

[0003] While the aforementioned technology achieves a certain degree of boiler ash removal, the components such as the driving motor and electric actuator are directly exposed to the outside environment, making the device susceptible to damage from external debris and prone to malfunction. This makes it inconvenient to use in practice. Therefore, to address the high failure rate caused by the direct exposure of the driving components, we propose a waste heat boiler ash removal device. Summary of the Invention

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a waste heat boiler ash removal device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A waste heat boiler ash removal device includes a main body. The lower end of the main body is connected to an installation box via a rotating assembly. The installation box contains a first motor and a rotating shaft. A worm gear is installed in the middle of the shaft. A worm is provided between two worm gears. The upper end of the worm is connected to the output end of the first motor. A linkage plate is installed at the end of the rotating shaft extending outside the installation box. A flow cavity is provided inside the linkage plate at the end away from the installation box, and an adjusting plate is slidably mounted thereon. A spray plate is provided at the end of the adjusting plate away from the linkage plate. A flow groove corresponding to the spray plate is provided in the middle of the adjusting plate. Tension springs are provided between the two sides of the adjusting plate and the end of the flow cavity near the installation box. An inlet pipe is connected between the flow cavities.

[0007] Preferably, the end of the adjusting plate is provided with a corresponding slot to the spray plate, and the two ends of the slot are provided with corresponding limiting rods to the spray plate.

[0008] Preferably, the two ends of the slot are provided with corresponding limiting holes for the limiting rod, and the bottom of the limiting hole is provided with a magnetic block, and the end of the limiting rod is inserted into the limiting hole through the magnetic block.

[0009] Preferably, the bottom of the mounting box is open, and a sealing plate is installed at the opening at the bottom of the mounting box by bolts.

[0010] Preferably, the drive assembly includes a second motor, a slide rail, and a connecting seat. The connecting seat is installed at the upper end of the mounting box, and the slide rail and the second motor are installed at the lower end of the device body. The slide rail is rotatably connected to the connecting seat, and the output end of the second motor is connected to the center of the upper surface of the connecting seat.

[0011] Preferably, the outer ring surface of the slide rail is provided with a shielding protrusion, which extends downward to the outside of the connecting seat.

[0012] Preferably, the end of the linkage plate away from the mounting box has a ventilation hole corresponding to the adjustment plate, and a filter plug is provided in the ventilation hole.

[0013] The waste heat boiler ash removal device proposed in this utility model has the following advantages:

[0014] 1. In this invention, when the water pressure inside the linkage plate is insufficient to resist the tension of the spring, the adjusting plate cannot extend. However, when the water pressure is greater than the tension of the spring, the adjusting plate can be pushed to move away from the linkage plate by overcoming the tension of the spring under the action of water pressure. Thus, the extension and retraction of the spray plate can be adjusted by controlling the water pressure. In summary, compared with the traditional solution, the first motor, worm gear, and worm shaft that control the extension and retraction of the spray component are all enclosed in the mounting box, while the components that control the extension and retraction of the spray component are enclosed in the linkage plate and the adjusting plate. This prevents the drive components from being directly exposed to the outside, thereby avoiding damage to the drive components by sewage during cleaning. It also simplifies the electrical components while ensuring the cleaning effect. As a result, this solution not only reduces the failure rate and cost but also improves the convenience of maintenance.

[0015] 2. The limiting rod in this utility model allows for convenient connection or separation between the spray plate and the adjusting plate. That is, when the through hole on the spray plate used to spray liquid is blocked, it is convenient for personnel to replace the spray plate. The magnetic block facilitates the connection of the limiting rod, allowing personnel to easily remove or install the limiting rod. The sealing plate facilitates the sealing of the opening at the bottom of the mounting box. This allows personnel to directly open the sealing plate when inspecting the internal components of the mounting box, and the sealing plate seals the opening of the mounting box during normal use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram from one perspective of a waste heat boiler ash removal device proposed in this utility model.

[0017] Figure 2 This is a schematic diagram from another perspective of a waste heat boiler ash removal device proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of the first motor and linkage plate of a waste heat boiler ash removal device proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the linkage plate of a waste heat boiler ash removal device proposed in this utility model.

[0020] Figure 5 This is a schematic diagram of the linkage plate and adjustment plate of a waste heat boiler ash removal device proposed in this utility model;

[0021] Figure 6 This is a schematic diagram of the internal structure of the regulating plate of a waste heat boiler ash removal device proposed in this utility model.

[0022] In the diagram: 1. Main body of the device; 2. Mounting box; 3. First motor; 4. Rotating shaft; 5. Worm gear; 6. Worm; 7. Linkage plate; 8. Adjustment plate; 9. Spray plate; 10. Tension spring; 11. Liquid inlet pipe; 12. Limiting rod; 13. Magnetic block; 14. Sealing plate; 15. Second motor; 16. Shielding protrusion; 17. Filter plug. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1

[0025] Reference Figure 1-6A waste heat boiler ash removal device includes a main body 1. The lower end of the main body 1 is connected to an installation box 2 via a rotating assembly. The installation box 2 contains a first motor 3 and a rotating shaft 4. A worm gear 5 is installed in the middle of the shaft 4. A worm 6 is provided between the two worm gears 5. The upper end of the worm 6 is connected to the output end of the first motor 3. A linkage plate 7 is installed at the end of the rotating shaft 4 that extends to the outside of the installation box 2. The linkage plate 7 has a flow cavity and an adjusting plate 8 that slides on the end away from the installation box 2. A spray plate 9 is provided at the end of the adjusting plate 8 away from the linkage plate 7. A flow groove corresponding to the spray plate 9 is provided in the middle of the adjusting plate 8. Tension springs 10 are provided between the two sides of the adjusting plate 8 and the end of the flow cavity near the installation box 2. An inlet pipe 11 is connected between the flow cavities. The inlet pipe 11 is connected to an external liquid supply facility, such as a water pump.

[0026] Example 2

[0027] Reference Figure 1-6 While all other parts are the same as in Example 1, the difference between this example and Example 1 is that:

[0028] The adjusting plate 8 has a corresponding slot at its end corresponding to the spray plate 9. Both ends of the slot have corresponding limiting rods 12 corresponding to the spray plate 9, and both ends of the slot have corresponding limiting holes corresponding to the limiting rods 12. A magnetic block 13 is provided at the bottom of each limiting hole. The end of the limiting rod 12 is inserted into the limiting hole via the magnetic block 13. The bottom of the mounting box 2 is open, and a sealing plate 14 is bolted to the opening at the bottom of the mounting box 2. The limiting rod 12 allows for easy connection or separation between the spray plate 9 and the adjusting plate 8. When the through hole for spraying liquid on plate 9 is blocked, it is convenient for personnel to replace the spray plate 9. The magnetic block 13 is set to facilitate the connection of the limit rod 12, so that personnel can easily remove or install the limit rod 12. The sealing plate 14 is set to facilitate the sealing of the opening at the bottom of the mounting box 2. Thus, when personnel inspect the internal parts of the mounting box 2, they can directly open the sealing plate 14. During normal use, the opening of the mounting box 2 is sealed by the sealing plate 14.

[0029] The drive assembly includes a second motor 15, a slide rail, and a connecting seat. The connecting seat is installed on the upper end of the mounting box 2, and the slide rail and the second motor 15 are installed on the lower end of the main body 1 of the device. The slide rail is rotatably connected to the connecting seat. The output end of the second motor 15 is connected to the center of the upper surface of the connecting seat. The outer ring surface of the slide rail is provided with a shielding protrusion 16, which extends downward to the outer side of the connecting seat. The end of the linkage plate 7 away from the mounting box 2 is provided with a ventilation hole corresponding to the adjustment plate 8. A filter plug 17 is provided in the ventilation hole. The drive assembly facilitates the reciprocating rotation of the mounting box 2, thereby facilitating the control of the rotation of the spray plate 9 and thus facilitating the cleaning of external boilers. The shielding protrusion 16 prevents sewage from entering the drive assembly through the gap between the connecting seat and the slide rail, thereby preventing sewage from damaging the second motor 15. The filter plug 17 facilitates the normal extension and retraction of the adjustment plate 8.

[0030] Operating principle and advantages: In use, the device extends to the external boiler to be cleaned via the main body 1. At this time, the first motor 3, worm gear 5, and worm 6 work together to drive the rotating shaft 4 to rotate. The rotating shaft 4 then drives the linkage plate 7 to rotate, which in turn causes the linkage plate 7 to drive the spray plate 9 to unfold inside the boiler via the adjusting plate 8. Subsequently, liquid is supplied to the inlet pipe 11 through the external liquid supply facility, and the cleaning liquid flows into the adjusting plate 8 through the flow chamber of the linkage plate 7. Finally, it flows through the adjusting plate 8 to the spray plate 9 and is sprayed into the boiler from the spray plate 9, thereby achieving the cleaning of the boiler interior.

[0031] Meanwhile, during the above process, the extension distance of the adjusting plate 8 can be controlled by adjusting the liquid pressure inside the connecting plate 7. That is, when the water pressure is insufficient to resist the tension of the tension spring 10, the adjusting plate 8 cannot extend. However, when the water pressure is greater than the tension of the tension spring 10, the adjusting plate 8 can be pushed to move away from the linkage plate 7 by overcoming the tension of the tension spring 10 under the action of water pressure. Thus, the extension and retraction adjustment of the spray plate 9 can be achieved by controlling the water pressure. In summary, compared with the traditional solution, the first motor 3, worm gear 5, and worm 6, which control the extension and retraction of the spray component, are all enclosed in the mounting box 2. The components that control the extension and retraction of the spray component are enclosed in the linkage plate 7 and the adjusting plate 8. This prevents the drive components from being directly exposed to the outside world, thereby avoiding the damage to the drive components caused by sewage during dust removal. It also simplifies the electrical components while ensuring the cleaning effect. As a result, this solution not only reduces the failure rate and cost but also improves the convenience of maintenance.

[0032] It should be further explained that the setting of the limiting rod 12 allows for convenient connection or separation between the spray plate 9 and the adjusting plate 8. That is, when the through hole on the spray plate 9 used for spraying liquid is blocked, it is convenient for personnel to replace the spray plate 9. The setting of the magnetic block 13 facilitates the connection of the limiting rod 12, thereby allowing personnel to easily remove or install the limiting rod 12. The setting of the sealing plate 14 facilitates the sealing of the opening at the bottom of the mounting box 2, thereby allowing personnel to inspect and maintain the internal components of the mounting box 2. When not in use, the sealing plate 14 can be opened directly. During normal use, the sealing plate 14 seals the opening of the mounting box 2. The drive assembly facilitates the reciprocating rotation of the mounting box 2, thereby facilitating the control of the spray plate 9 rotation and thus facilitating the cleaning of external boilers. The shielding protrusion 16 prevents sewage from entering the drive assembly through the gap between the connecting seat and the slide rail, thus preventing sewage from damaging the second motor 15. The filter plug 17 facilitates the normal extension and retraction of the adjustment plate 8.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A soot blowing device for a waste heat boiler, comprising a device body (1), characterized in that, The lower end of the device body (1) is connected with the installation box (2) through a rotating assembly, the installation box (2) is internally provided with a first motor (3) and a rotating shaft (4), the middle part of the rod body of the rotating shaft (4) is provided with a worm gear (5), two worm gears (5) are jointly provided with a worm (6), the upper end of the worm (6) is connected with the output end of the first motor (3), the end of the rotating shaft (4) extending to the outside of the installation box (2) is provided with a linkage plate (7), the inside of the end of the linkage plate (7) away from the installation box (2) is provided with a flow cavity and is slidably provided with an adjusting plate (8), the end of the adjusting plate (8) away from the linkage plate (7) is provided with a liquid spraying plate (9), the middle part of the adjusting plate (8) is provided with a flow groove corresponding to the liquid spraying plate (9), the two sides of the adjusting plate (8) and the end of the flow cavity close to the installation box (2) are jointly provided with a tension spring (10), and the flow cavities are jointly connected with a liquid inlet pipe (11).

2. A soot blowing device for a waste heat boiler according to claim 1, characterized in that The end of the adjusting plate (8) is provided with a matching insertion slot corresponding to the liquid spraying plate (9), and the two ends of the insertion slot are provided with matching limiting rods (12) corresponding to the liquid spraying plate (9).

3. A soot blowing device for a waste heat boiler according to claim 2, characterized in that The two ends of the insertion slot are provided with matching limiting holes corresponding to the limiting rods (12), the bottom of the limiting hole is provided with a magnetic block (13), and the end of the limiting rod (12) is inserted into the limiting hole through the magnetic block (13).

4. The ash removal device of a waste heat boiler according to claim 1, characterized in that, The bottom of the installation box (2) is in an open state, and the opening of the bottom of the installation box (2) is provided with a sealing plate (14) through bolts.

5. The ash removal device of a waste heat boiler according to claim 1, characterized in that, The driving assembly comprises a second motor (15), a sliding rail and a connecting seat, the connecting seat is installed at the upper end of the installation box (2), the sliding rail and the second motor (15) are installed at the lower end of the device body (1), the sliding rail is rotatably connected with the connecting seat, and the output end of the second motor (15) is connected with the center of the upper surface of the connecting seat.

6. A soot blowing device for a waste heat boiler according to claim 5, characterized in that The outer ring surface of the sliding rail is provided with a shielding protrusion (16), and the shielding protrusion (16) extends downward to the outside of the connecting seat.

7. The ash removal device of a waste heat boiler according to claim 1, characterized in that, The end of the linkage plate (7) away from the installation box (2) is provided with a ventilation hole corresponding to the adjusting plate (8), and the ventilation hole is provided with a filter plug (17).

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