An on-line water hydraulic ash cleaning system for a waste heat boiler

Abstract

The application discloses an online hydraulic ash cleaning system of a waste heat boiler, which comprises a bearing steel frame, an I-shaped steel arranged on the top of the bearing steel frame, a hoisting support slidingly arranged on the I-shaped steel through a transverse moving device, a roller arranged in the hoisting support through a longitudinal lifting device, a metal hose wound on the roller, a spray head arranged at one end of the metal hose and a water supply device connected to the other end of the metal hose, a plurality of guide pipes arranged on the waste heat boiler and extending to the top of the bearing steel frame. The application can automatically and flexibly move the spray head on the metal hose along the guide pipes to the inside of different parts of the waste heat boiler, so as to effectively clean the inside walls of the different parts, thereby realizing the cleaning work of multiple parts by one device. The application can maximize the use efficiency of the device, significantly improve the cleaning efficiency and the heat exchange effect, reduce the waste of energy and the operation and maintenance cost.

Description

Technical Field

[0001] This application relates to the technical field of waste heat boiler ash removal, and in particular to an online hydraulic ash removal system for waste heat boilers. Background Technology

[0002] Waste incineration has become one of the key methods for waste treatment. In waste-to-energy incineration systems, waste heat boilers play a crucial role in heat exchange, and the cleanliness of the tube panels is particularly important for the overall system performance. However, in practice, due to the diversity of waste composition, heat exchange surfaces often suffer from ash accumulation, which not only reduces heat exchange efficiency but also affects the stable operation and efficiency of the boiler.

[0003] To address this issue, steam blowing technology is commonly used in existing technologies for cleaning heated surfaces. However, this method suffers from significant energy waste and high investment costs. While online shockwave blowing technology has been employed, it has blind spots in cleaning, resulting in less than ideal cleaning performance.

[0004] Therefore, there is an urgent need to develop an economical and efficient ash removal system, which is of great significance for waste-to-energy plants to achieve energy conservation, cost reduction, and improved efficiency. Utility Model Content

[0005] The purpose of this application is to provide an online hydraulic ash removal system for waste heat boilers to solve the problems of energy waste, high investment costs, and the existence of cleaning dead zones in the existing ash removal structures, resulting in unsatisfactory ash removal effects.

[0006] The online hydraulic ash removal system for a waste heat boiler provided in this application adopts the following technical solution:

[0007] An online hydraulic ash removal system for a waste heat boiler includes a supporting steel frame. An I-beam is installed on the top of the supporting steel frame. A lifting bracket is slidably installed on the I-beam via a lateral moving device. A roller is installed inside the lifting bracket via a longitudinal lifting device. A metal hose is wound on the roller. One end of the metal hose is equipped with a nozzle, and the other end is connected to a water supply device. Several guide pipes are installed on the top of the furnace of the waste heat boiler, which cooperate with the nozzle and the metal hose. The top end of the guide pipe extends to the top of the supporting steel frame.

[0008] Furthermore, the lateral moving device includes a housing slidably disposed on both sides of the I-beam, a plurality of rollers respectively abutting against the grooves on both sides of the I-beam are rolledly disposed on the inner side of the housing, a lateral driving assembly connected to the rollers is also disposed on one side of the housing, and connecting rods connected to the hoisting bracket are disposed on both sides of the housing.

[0009] Furthermore, the lateral drive assembly includes a control handle and a lateral drive motor disposed on one side of the housing. The output end of the lateral drive motor is connected to the roller. A control box connected to the lateral drive motor is also disposed on one side of the housing, and the control box cooperates with the control handle.

[0010] Furthermore, the bottom ends of both connecting rods can be detachably connected to the top end of the hoisting bracket.

[0011] Furthermore, the longitudinal lifting device includes a reducer disposed on one side of the hoisting bracket, a longitudinal drive motor connected to the input end of the reducer, a rotating shaft connected between the output end of the reducer and the roller, and a controller connected to the longitudinal drive motor disposed on one side of the reducer.

[0012] Furthermore, the water supply device includes an industrial water tank, on which a water pump is installed. A suction pipe is connected between the input end of the water pump and the industrial water tank, and a drain pipe is connected to the output end of the water pump. One end of the drain pipe is connected to one end of the metal flexible hose, and a pressure gauge is also installed on the drain pipe.

[0013] Furthermore, a pneumatic valve is provided between the supporting steel frame and the end of the guide tube; a funnel is provided at the top of the guide tube.

[0014] Furthermore, the bottom of the hoisting bracket is provided with sliding wheels on all four sides; the two sides of the hoisting bracket are rotatably provided with limit tubes, and the two limit tubes respectively cooperate with the metal flexible hose.

[0015] Compared with the prior art, the beneficial effects of this application are as follows:

[0016] By setting up a structure that integrates a supporting steel frame, I-beams, a lateral moving device, a hoisting bracket, a longitudinal lifting device, rollers, metal hoses, nozzles, a water supply device, and guide pipes, the nozzles on the metal hoses can be automatically and flexibly moved along the guide pipes to different parts of the waste heat boiler furnace. This achieves thorough and effective hydraulic cleaning of the inner walls of different parts, allowing one device to complete the cleaning of multiple parts. This not only maximizes the efficiency of the equipment, significantly improves cleaning efficiency and heat exchange effect, and reduces energy waste, but also lowers operating and maintenance costs.

[0017] Meanwhile, this application fully considers the actual site conditions. By installing the I-beams and hoisting brackets on the upper part of the crossbeams of the load-bearing steel frame and using a detachable connection, it not only achieves a stable and fixed effect but also a convenient disassembly effect, thereby maximizing the use of site space. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the waste heat boiler online hydraulic ash removal system according to an embodiment of this application.

[0019] Figure 2 This is a schematic diagram of the structure of the lateral moving device and the longitudinal lifting device in the embodiments of this application.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Supporting steel frame; 11. I-beam; 12. Outer shell; 13. Roller; 14. Connecting rod; 15. Horizontal drive motor; 16. Control box; 17. Through hole; 2. Lifting bracket; 21. Roller; 22. Metal hose; 23. Nozzle; 24. Pulley; 25. Reducer; 26. Longitudinal drive motor; 27. Shaft; 28. Controller; 29. ​​Limiting tube; 3. Guide tube; 31. Funnel; 4. Waste heat boiler; 41. Hole; 5. Industrial water tank; 51. Water pump; 52. Suction pipe; 53. Drain pipe; 54. Pressure gauge; 6. Pneumatic valve. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0023] This application discloses an online hydraulic ash removal system for a waste heat boiler, referring to... Figure 1 and Figure 2 In this embodiment, the online hydraulic ash removal system for the waste heat boiler includes a supporting steel frame 1, an I-beam 11, a lateral moving device, a hoisting bracket 2, a longitudinal lifting device, a roller 21, a metal hose 22, a nozzle 23, a water supply device, and a guide pipe 3. The supporting steel frame 1 is installed on the outer top of the waste heat boiler 4, effectively supporting the equipment and providing support for worker movement. The I-beam 11 is tightly installed on the top of the supporting steel frame 1, with its length parallel to that of the supporting steel frame 1. The hoisting bracket 2 is slidably installed at the bottom of the I-beam 11 via the lateral moving device, enabling automatic lateral movement of the hoisting bracket 2 along the space between the supporting steel frame 1 and the I-beam 11.

[0024] Specifically, refer to Figure 1 and Figure 2In this embodiment, the lateral movement device includes a housing 12, rollers 13, a lateral drive assembly, and a connecting rod 14. The housing 12 is slidably mounted on both sides of the I-beam 11. Several rollers 13 are provided, evenly divided into two groups. The two groups of rollers 13 are respectively rolled and mounted on the two inner sides of the housing 12, and the two groups of rollers 13 respectively abut against the grooves on both sides of the I-beam 11.

[0025] Meanwhile, the lateral drive assembly is located on one side of the housing 12 and is connected to the roller 13 to drive the roller 13 to rotate automatically, so that the housing 12 can slide more smoothly laterally on the I-beam 11 via the roller 13.

[0026] Specifically, the lateral drive assembly includes a control handle, a lateral drive motor 15, and a control box 16. The lateral drive motor 15 is mounted on one side of the housing 12, and its output end is fixedly connected to one of the rollers 13, enabling the rollers 13 to rotate. The control box 16 is also mounted on one side of the housing 12 and is electrically connected to the lateral drive motor 15, allowing the control box 16 to control the opening and closing of the lateral drive motor 15. The control handle is communicatively connected to the control box 16, enabling the control handle to control the control box 16. It should be noted that the control handle, lateral drive motor 15, and control box 16 are existing components and will not be described in detail here.

[0027] Furthermore, multiple connecting rods 14 are provided, which are evenly divided into two groups. One end of each group of connecting rods 14 is symmetrically connected to both sides of the outer casing 12, and the other end of each group of connecting rods 14 is symmetrically connected to both sides of the top of the lifting bracket 2, so as to realize the lifting of the lifting bracket 2. Specifically, the bottom ends of both groups of connecting rods 14 can be detachably connected to both sides of the top of the lifting bracket 2. This arrangement not only enables the lifting bracket 2 to be stably installed on the connecting rods 14, but also allows the lifting bracket 2 to be easily detached from the connecting rods 14.

[0028] Preferably, in this embodiment, sliding wheels 24 are installed around the bottom of the lifting bracket 2. When the lifting bracket 2 is disassembled, the sliding wheels 24 allow the operator to easily push the lifting bracket 2 on the surface of the supporting steel frame 1.

[0029] When the lifting bracket 2 needs to be moved laterally, the operator holds the control handle to control the control box 16, so that the control box 16 controls the lateral drive motor 15 to start. The output end of the lateral drive motor 15 drives the rollers 13 to rotate, so that the outer shell 12 moves laterally in the grooves on both sides of the I-beam 11 through these rollers 13, and then the outer shell 12 drives the lifting bracket 2 to move laterally automatically through these connecting rods 14.

[0030] Additionally, refer to Figure 1 and Figure 2 In this embodiment, the roller 21 is rotatably mounted on the inner side of the hoisting bracket 2 via a longitudinal lifting device. The longitudinal lifting device facilitates the rotation of the roller 21. The metal hose 22 is wound around the roller 21; the nozzle 23 is mounted on one end of the metal hose 22; the water supply device is located on the outer side of the supporting steel frame 1, and the water supply device is connected to the end of the metal hose 22 away from the nozzle 23, so as to supply cleaning water into the metal hose 22, and then the cleaning water is sprayed out from the nozzle 23.

[0031] To elaborate, since the metal hose 22 is a soft water pipe made of wear-resistant and corrosion-resistant metal material, during the lateral movement of the lifting bracket 2, the portion of the metal hose 22 not wound on the roller 21 also moves laterally along with the lifting bracket 2. Furthermore, the nozzle 23 is a rotating design, enabling effective ash removal from all directions of the waste heat boiler 4's furnace, thereby improving the furnace operating efficiency of the waste heat boiler 4.

[0032] More specifically, in this embodiment, the longitudinal lifting device includes a reducer 25, a longitudinal drive motor 26, a rotating shaft 27, and a controller 28. The reducer 25 is mounted on one side of the lifting bracket 2; the longitudinal drive motor 26 is mounted on top of the reducer 25, and its output end is fixedly connected to the input end of the reducer 25; the two ends of the rotating shaft 27 are respectively fixedly connected between the output end of the reducer 25 and one end of the roller 21; the controller 28 is mounted on one side of the reducer 25, and is electrically connected to the longitudinal drive motor 26 and communicatively connected to the control handle. It should be noted that the reducer 25, longitudinal drive motor 26, and controller 28 are existing devices and will not be described in detail here.

[0033] When the operator holds the control handle to control the controller 28, the controller 28 controls the longitudinal drive motor 26 to start. The output end of the longitudinal drive motor 26 drives the rotating shaft 27 to rotate under the action of the reducer 25, thereby causing the rotating shaft 27 to drive the roller 21 to rotate. The roller 21 then unwinds or winds up the metal hose 22, thereby enabling the nozzle 23 to move up or down.

[0034] Preferably, in this embodiment, limiting tubes 29 are rotatably installed on both sides of the lifting bracket 2, and the two limiting tubes 29 respectively cooperate with the tube body of the metal hose 22. By setting the limiting tubes 29, the lifting and lowering of the metal hose 22 can be effectively guided and limited when unwinding or rewinding.

[0035] Specifically, refer to Figure 1 In this embodiment, the water supply device includes an industrial water tank 5, a water pump 51, a suction pipe 52, a drain pipe 53, and a pressure gauge 54. The industrial water tank 5 is installed on the outside of the supporting steel frame 1 and stores clean water. The water pump 51 is installed on the industrial water tank 5 and is communicatively connected to a control handle. The suction pipe 52 connects the input end of the water pump 51 to the industrial water tank 5. One end of the drain pipe 53 is connected to the output end of the water pump 51, and the other end is connected to the end of the metal hose 22 furthest from the nozzle 23.

[0036] The pressure gauge 54 is installed on the drain pipe 53 to monitor the pressure of the clean water flow, thereby ensuring the stability of the water pressure. This allows the water sprayed from the nozzle 23 to efficiently complete the ash removal work without damaging the furnace water-cooled walls. Specifically, the water pump 51 and pressure gauge 54 are existing equipment and will not be described in detail here.

[0037] When the water pump 51 is started by controlling the control handle, the suction pipe 52 draws the clean water stored in the industrial water tank 5 into the drain pipe 53, and then the clean water is transported along the drain pipe 53 into the metal hose 22, and finally the clean water is sprayed out from the nozzle 23.

[0038] In addition, refer to Figure 1 and Figure 2 In this embodiment, several guide pipes 3 are provided, and multiple holes 41 are opened on the top of the furnace of the waste heat boiler 4. The bottom ends of the guide pipes 3 are respectively installed on the holes 41, so that the bottom ends of the guide pipes 3 all extend into the furnace of the waste heat boiler 4. Furthermore, several through holes 17 are opened on the surface of the supporting steel frame 1, and the top ends of the guide pipes 3 extend out of the top of the supporting steel frame 1 along the through holes 17.

[0039] At the same time, the guide pipe 3 works in conjunction with the nozzle 23 and the metal hose 22, so that when the nozzle 23 and the metal hose 22 are raised and lowered, they can extend into the furnace of the waste heat boiler 4 along the guide pipe 3, thereby achieving the effect of hydraulic ash removal on the inner wall of the furnace of the waste heat boiler 4.

[0040] Secondly, in this embodiment, a pneumatic valve 6 is installed between the end of the supporting steel frame 1 and the guide tube 3, and this pneumatic valve 6 is communicatively connected to the control handle. The pneumatic valve 6 allows for the opening or closing of the end of the guide tube 3. Furthermore, a funnel 31 is installed on the top of the guide tube 3 extending from the supporting steel frame 1. This funnel 31 allows the nozzle 23 and the metal hose 22 to more accurately enter the interior of the guide tube 3 during descent. Additionally, during the descent of the nozzle 23, the operator can directly hold the nozzle 23 and place it into the funnel 31 and the interior of the guide tube 3.

[0041] Meanwhile, in this embodiment, guardrails are installed on both sides of the supporting steel frame 1, and position sensors are installed on the side of the guardrails near the guide tubes 3. These position sensors are interconnected with the control box 16 to achieve effective positioning of the nozzle 23. Specifically, the pneumatic valve 6 and the position sensors are existing equipment and will not be described in detail here.

[0042] When the hoisting bracket 2 moves the nozzle 23 laterally to the position sensor, the position sensor can sense the position of the hoisting bracket 2 at this time, and then transmit the signal to the control box 16. After receiving the signal, the control box 16 controls the lateral drive motor 15 to stop, thereby stopping the hoisting bracket 2. This allows the metal hose 22 to drive the nozzle 23 to accurately enter the funnel 31 and the guide tube 3 when it is unwound, so as to realize the ash cleaning operation. After the ash cleaning operation is completed, the lateral drive motor 15 can be restarted by using the control handle to realize the ash cleaning operation of other holes 41 of the waste heat boiler 4.

[0043] Therefore, the solution of this application, through the coordinated structure of the supporting steel frame 1, I-beam 11, lateral moving device, hoisting bracket 2, longitudinal lifting device, roller 21, metal hose 22, nozzle 23, water supply device, and guide pipe 3, can automatically and flexibly move the nozzle 23 on the metal hose 22 along the guide pipe 3 to different parts of the furnace of the waste heat boiler 4, so as to achieve a thorough and effective hydraulic cleaning effect on the inner wall of different parts. Thus, one device can complete the cleaning work of multiple parts. This not only maximizes the utilization efficiency of the equipment, significantly improves the cleaning efficiency and enhances the heat exchange effect, and reduces energy waste, but also reduces the operating and maintenance costs.

[0044] Meanwhile, this application fully considers the actual site conditions. By installing the I-beam 11 and the hoisting bracket 2 on the upper part of the crossbeam of the load-bearing steel frame 1 and using a detachable connection, it not only achieves a stable fixing effect but also a convenient disassembly effect, thereby maximizing the use of site space.

[0045] The implementation principle of an online hydraulic ash removal system for a waste heat boiler according to an embodiment of this application is as follows:

[0046] When hydraulic cleaning of the furnace interior of the waste heat boiler 4 is required, the horizontal drive motor 15 is first started by controlling the control box 16. The output end of the horizontal drive motor 15 drives the rollers 13 to rotate, so that the outer shell 12 moves laterally in the grooves on both sides of the I-beam 11 through the rollers 13. The outer shell 12 then drives the hoisting bracket 2 to move automatically laterally through the connecting rods 14. The hoisting bracket 2 then drives the nozzle 23 to the designated hole position 41. Then, the longitudinal drive motor 26 is started by controlling the controller 28. The output end of the longitudinal drive motor 26 drives the rotating shaft 27 to rotate under the action of the reducer 25, so that the rotating shaft 27 drives the drum 21 to rotate. The drum 21 then unwinds the metal hose 22 to lower the nozzle 23.

[0047] When the nozzle 23 is lowered to the position of the funnel 31, the pneumatic valve 6 is opened, and the nozzle 23 is lowered along the guide pipe 3 into the furnace of the waste heat boiler 4. Then the water pump 51 is turned on, and the suction pipe 52 draws the clean water stored in the industrial water tank 5 into the drain pipe 53. The clean water is then transported along the drain pipe 53 to the metal hose 22. Finally, the clean water is sprayed out from the nozzle 23 to clean the inner wall of the furnace of the waste heat boiler 4. At this time, the pressure is observed through the pressure gauge 54, and the water flow and pressure are adjusted to ensure that water is sprayed out from the nozzle 23. The specific cleaning process is as follows: after the nozzle 23 is lowered to clean 7 meters, it is raised to clean 7 meters again, which is one cleaning cycle.

[0048] After cleaning is completed, the reverse drive roller 21 rewinds the metal hose 22 to lift the nozzle 23 out of the furnace. When the nozzle 23 enters the guide tube 3, the cleaning water pressure is adjusted to cool the nozzle 23 and the metal hose 22. After cleaning one cleaning hole 41, the lateral movement device controls the hoisting bracket 2 to move the nozzle 23 to the next cleaning hole 41. The above operation is repeated until all holes 41 are cleaned.

[0049] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An online hydraulic ash removal system for a waste heat boiler, characterized in that: The system includes a supporting steel frame (1), with an I-beam (11) on top. A lifting bracket (2) is slidably mounted on the I-beam (11) via a transverse moving device. A roller (21) is mounted inside the lifting bracket (2) via a longitudinal lifting device. A metal hose (22) is wound around the roller (21). One end of the metal hose (22) is equipped with a nozzle (23), and the other end is connected to a water supply device. Several guide pipes (3) that cooperate with both the nozzle (23) and the metal hose (22) are mounted on the top of the furnace of the waste heat boiler (4). The top end of the guide pipes (3) extends to the top of the supporting steel frame (1).

2. The waste heat boiler online hydraulic ash removal system according to claim 1, characterized in that: The lateral moving device includes a housing (12) slidably disposed on both sides of the I-beam (11). The inner side of the housing (12) is provided with a plurality of rollers (13) that respectively abut against the grooves on both sides of the I-beam (11). A lateral driving assembly connected to the rollers (13) is also provided on one side of the housing (12). Both sides of the housing (12) are provided with connecting rods (14) connected to the hoisting bracket (2).

3. The online hydraulic ash removal system for a waste heat boiler according to claim 2, characterized in that: The lateral drive assembly includes a control handle and a lateral drive motor (15) disposed on one side of the housing (12). The output end of the lateral drive motor (15) is connected to the roller (13). A control box (16) connected to the lateral drive motor (15) is also disposed on one side of the housing (12). The control box (16) cooperates with the control handle.

4. The online hydraulic ash removal system for a waste heat boiler according to claim 2, characterized in that: The bottom ends of both connecting rods (14) can be detachably connected to the top of the hoisting bracket (2).

5. The online hydraulic ash removal system for a waste heat boiler according to claim 1, characterized in that: The longitudinal lifting device includes a reducer (25) disposed on one side of the hoisting bracket (2), a longitudinal drive motor (26) is connected to the input end of the reducer (25), a rotating shaft (27) is connected between the output end of the reducer (25) and the roller (21), and a controller (28) connected to the longitudinal drive motor (26) is also disposed on one side of the reducer (25).

6. The online hydraulic ash removal system for a waste heat boiler according to claim 1, characterized in that: The water supply device includes an industrial water tank (5), on which a water pump (51) is installed. A suction pipe (52) is connected between the input end of the water pump (51) and the industrial water tank (5), and a drain pipe (53) is connected to the output end of the water pump (51). One end of the drain pipe (53) is connected to one end of the metal hose (22), and a pressure gauge (54) is also installed on the drain pipe (53).

7. The online hydraulic ash removal system for a waste heat boiler according to claim 1, characterized in that: A pneumatic valve (6) is provided between the end of the supporting steel frame (1) and the guide tube (3); a funnel (31) is provided at the top of the guide tube (3).

8. The online hydraulic ash removal system for a waste heat boiler according to claim 1, characterized in that: The bottom of the hoisting bracket (2) is provided with sliding wheels (24); the two sides of the hoisting bracket (2) are rotatably provided with limit tubes (29), and the two limit tubes (29) are respectively engaged with the metal hose (22).

Images