Auxiliary device for overhauling pneumatic ash conveying system
By designing an auxiliary device for the maintenance of pneumatic ash transfer system, dust is removed by using brushes and installation wheel sets, and blocking blockages are solved through high-pressure gas and impeller, and dust residue and blockage problems in the maintenance of pneumatic ash transfer system are solved, achieving effective cleaning and disassembly.
Patent Information
- Application Number
- CN202421732349.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-22
AI Technical Summary
During the maintenance of the pneumatic ash transfer system, it is difficult for existing devices to effectively remove dust in the pipeline, resulting in dust residue, which can easily cause pipeline blockage and is inconvenient to improve the humidity in the device.
An auxiliary device is designed, including a curved base, elastic assembly, roller, mounting shaft, mounting wheel set, brush, dust collector and outer tube. The device swept off and collected dust on the inner side of the pipe wall through the cooperation of the brush and the installation wheel set; when encountering a blockage, high-pressure drying gas and impeller cooperate to rotate the drill bit at high speed, break the blockage, and draw it out through a vacuum pump.
The device can effectively clean the dust in the pipe, avoid dust adhering for a long time, reduce the risk of pipe blockage, and avoid damage to the sealing structure when replacing the pipe, and achieve frequent disassembly and maintenance.
Smart Images
Figure CN222872923U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ash conveying equipment, in particular to an auxiliary device for overhauling a pneumatic ash conveying system. Background Art
[0002] The production process of industrial boilers is a process of continuous heat exchange between circulating water and the fuel burning in the furnace. Boilers in the power industry generally use combustibles such as pulverized coal, coal gas or natural gas as fuel. Mixed-fired boilers use gas fuels with a certain proportion of pulverized coal as fuel. Gas fuels can generally be completely burned in the boiler furnace and then discharged from the flue by the boiler ventilation equipment. The ash in pulverized coal fuel is a non-combustible substance. Under the high temperature conditions of the furnace, the ash particles adhere to each other to form ash slag. The ash slag and the solid combustibles that have not been completely burned form fly ash in the flue gas at the tail end of the boiler. If the fly ash particles are entrained in the circulating air and discharged into the atmosphere through the chimney, it is bound to cause great damage to the atmospheric environment.
[0003] When the system is inspected and repaired, it is necessary to clean it by adjusting the air pressure, etc. Compared with ordinary inspection devices, there will still be dust remaining during inspection, which is not convenient to avoid pipe blockage to the greatest extent. When the pipe is inspected and cleaned, it is not convenient to clear and collect the blocked dust, and it is not convenient to improve the humidity in the device.
[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and an auxiliary device for the maintenance of pneumatic ash conveying system is proposed. Utility Model Content
[0005] The utility model aims to provide an auxiliary device for the maintenance of a pneumatic ash conveying system to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an auxiliary device for the maintenance of a pneumatic ash conveying system, comprising a base, the base being arranged in an arc shape, and an elastic component being fixedly arranged in the middle inner part of the base, the elastic components being symmetrically arranged in five groups along the center line of the base, with two in each group, and rollers being rotatably arranged between the elastic components, mounting shafts being arranged on both sides of the rollers, and the mounting shafts being symmetrically arranged in five groups along the center line of the base, with two in each group.
[0007] Preferably, a mounting wheel set is rotatably provided in the middle of the mounting shaft, and brushes are fixedly provided between the mounting wheel sets, the brushes and the mounting wheel sets are in contact with the pipe wall, and a dust collecting pipe is fixedly provided at the lower end of the base.
[0008] Preferably, the interfaces of the dust collecting tube located inside the base are all located below the mounting wheel set, a bracket is fixedly provided at the center of the base, and the bracket is arranged in a three-pointed star shape, and three brackets are evenly arranged around the base.
[0009] Preferably, a through hole is opened in the middle of the bracket, and a rotating shaft is arranged in the middle of the through hole, the rotating shaft is rotatably connected to the bracket, and a drill bit is fixedly arranged at the other end of the rotating shaft.
[0010] Preferably, an impeller is fixedly arranged around the drill bit, and the outer diameter of the impeller is consistent with the outer diameter of the bracket. A mounting block is arranged on one side of the impeller close to the bracket, and the mounting block is fixedly connected to the base.
[0011] Preferably, an air nozzle is provided on one side of the mounting block close to the impeller, and air pipes are fixedly provided on both sides of the dust collecting pipe at the lower end of the base, and two air pipes form a group, with a total of three groups.
[0012] Preferably, one end of the air pipe is connected to the air nozzle, an outer tube is fixedly provided on the side of the bracket away from the drill bit, and the outer tube is located outside the through hole, the outer tube is connected to the dust collecting pipe, and an inner tube is fixedly provided inside the outer tube in the middle of the through hole, and the other end of the air pipe passes through the outer tube and is connected to the inner tube.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. The utility model is provided with a base, an elastic component, a roller, a mounting shaft, a mounting wheel set, a brush, a dust collecting tube and an outer tube. When the device is used to inspect the pipeline, as the device moves forward, the brush and the mounting wheel set rotate together, so that the dust on the inner side of the pipeline wall can be swept off and collected through the dust collecting tube, thereby assisting workers to clean the inside of the pipeline during inspection and preventing dust from adhering to the pipeline wall for a long time.
[0015] 2. The utility model is provided with a bracket, a through hole, a rotating shaft, a drill bit, an impeller, a mounting block, an air nozzle, an air pipe and an inner pipe. When the device encounters a blockage, the high-pressure dry gas ejected from the air nozzle can cooperate with the impeller to make the drill bit rotate at a high speed, so that the blockage can be broken. The broken blockage will enter the middle of the drill bit, and the drill bit can guide the high-pressure gas to blow backwards, so that the broken blockage can be guided to the through hole or the brush and extracted by an external vacuum pump, so that the sealing structure can be avoided from being damaged when the pipeline is replaced, so that the pipeline can be frequently disassembled during maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;
[0017] Figure 2 It is a schematic diagram of the overall partial cross-sectional structure of the utility model;
[0018] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;
[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the outer tube of the utility model.
[0020] In the figure: 1. base; 2. elastic component; 3. roller; 4. mounting shaft; 5. mounting wheel set; 6. brush; 7. dust collecting tube; 8. bracket; 9. through hole; 10. rotating shaft; 11. drill bit; 12. impeller; 13. mounting block; 14. air nozzle; 15. air pipe; 16. outer tube; 17. inner tube. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] like Figure 1-Figure 3 As shown, an auxiliary device for the maintenance of a pneumatic ash conveying system comprises a base 1, the base 1 is arranged in an arc shape, and an elastic component 2 is fixedly arranged in the middle of the base 1, and the elastic component 2 is symmetrically arranged in five groups along the center line of the base 1, with two in each group, and rollers 3 are rotatably arranged between the elastic components 2, and mounting shafts 4 are arranged on both sides of the rollers 3, and the mounting shafts 4 are symmetrically arranged in five groups along the center line of the base 1, with two in each group. When the device is inspecting the pipeline, as the device moves forward, the brush 6 rotates together with the mounting wheel group 5, so that the dust on the inner side of the pipe wall can be swept off and collected through the dust collecting pipe 7, so that the worker can be assisted to clean the inside of the pipe during the inspection to prevent the dust from adhering to the pipe wall for a long time;
[0023] Furthermore, the elastic component 2 can prevent the device from frequently hitting the inner wall of the pipe.
[0024] Furthermore, the roller 3 can reduce the friction between the device and the pipe wall, thereby further extending the service life of the pipe.
[0025] like Figure 2 and Figure 4As shown, a mounting wheel set 5 is rotatably provided in the middle of the mounting shaft 4, and brushes 6 are fixedly provided between the mounting wheel sets 5, and the brushes 6 and the mounting wheel sets 5 are in contact with the pipe wall, a dust collecting pipe 7 is fixedly provided at the lower end of the base 1, and the interface of the dust collecting pipe 7 located inside the base 1 is located below the mounting wheel set 5, a bracket 8 is fixedly provided at the center of the base 1, and the bracket 8 is arranged in a three-pointed star shape, and the base 1 is evenly provided with three brackets 8, a through hole 9 is opened in the middle of the bracket 8, and a through hole 9 is arranged in the middle There is a rotating shaft 10, which is rotatably connected to the bracket 8, and a drill bit 11 is fixedly arranged at the other end of the rotating shaft 10, and an impeller 12 is fixedly arranged around the drill bit 11, and the outer diameter of the impeller 12 is consistent with the outer diameter of the bracket 8, and a mounting block 13 is arranged on the side of the impeller 12 close to the bracket 8, and the mounting block 13 is fixedly connected to the base 1, and an air nozzle 14 is opened on the side of the mounting block 13 close to the impeller 12, and the lower end of the base 1 is located on both sides of the dust collecting pipe 7. The air pipe 15 is fixedly arranged, and the air pipe 1 Two of them form a group, and three groups are provided in total. One end of the air pipe 15 is communicated with the air nozzle 14. An outer pipe 16 is fixedly provided on the side of the bracket 8 away from the drill bit 11, and the outer pipe 16 is located outside the through hole 9. The outer pipe 16 is communicated with the dust collecting pipe 7, and an inner pipe 17 is fixedly provided inside the outer pipe 16 in the middle of the through hole 9. The other end of the air pipe 15 passes through the outer pipe 16 and is connected with the inner pipe 17. When the device encounters a blockage, the high-pressure dry gas ejected from the air nozzle 14 can cooperate with the impeller 12 to make the drill bit 11 rotate at a high speed, so that the blockage can be broken. The broken blockage will enter the middle of the drill bit 11, and the drill bit 11 can guide the high-pressure gas to blow it backward, so that the broken blockage can be guided to the through hole 9 or the brush 6, and the broken blockage can be guided to the through hole 9 or the brush 6, and extracted by an external vacuum pump, so that the sealing structure can be avoided from being damaged when the pipeline is replaced, so that the pipeline can be frequently disassembled during maintenance.
[0026] Furthermore, the gas ejected from the gas nozzle 14 can be selected as high-pressure gas with different humidity according to the working conditions of the pipeline to achieve the purpose of adjusting the temperature.
[0027] Furthermore, the drill bit 11 is driven by gas, which can enhance the efficiency of dust collection and avoid the need to install a motor, thereby reducing the weight of the device.
[0028] Furthermore, the outer tube 16 is used to collect dust and debris, and the inner tube 17 is responsible for providing high-pressure gas. This arrangement can further simplify the structure of the device and improve the passability of the device.
[0029] Working principle: When using the auxiliary device for the maintenance of the pneumatic ash conveying system, first, when the device is inspecting the pipeline, as the device moves forward, the brush 6 rotates together with the mounting wheel set 5, so that the dust on the inner side of the pipe wall can be swept off and collected through the dust collecting pipe 7, so that the workers can be assisted to clean the inside of the pipeline during maintenance to prevent dust from adhering to the pipe wall for a long time; finally, when the device encounters a blockage, the high-pressure dry gas ejected from the air nozzle 14 can cooperate with the impeller 12 to allow the drill bit 11 to rotate at a high speed, so that the blockage can be broken, and the broken blockage will enter the middle of the drill bit 11, and the drill bit 11 can guide the high-pressure gas to blow it backward, so that the broken blockage can be guided to the through hole 9 or the brush 6, and the broken blockage can be guided to the through hole 9 or the brush 6, and extracted by an external vacuum pump, so that the sealing structure can be avoided from being damaged when the pipeline is replaced, so that the pipeline can be frequently disassembled during maintenance. This is the working principle of the auxiliary device for the maintenance of pneumatic ash conveying systems.
Claims
1. An auxiliary device for the maintenance of a pneumatic ash conveying system, comprising a base (1), characterized in that: The base (1) is arranged in an arc shape, and an elastic component (2) is fixedly arranged in the middle of the base (1), and the elastic components (2) are symmetrically arranged in five groups along the center line of the base (1), with two components in each group, and rollers (3) are rotatably arranged between the elastic components (2), and installation shafts (4) are arranged on both sides of the rollers (3), and the installation shafts (4) are symmetrically arranged in five groups along the center line of the base (1), with two components in each group.
2. The auxiliary device for maintenance of pneumatic ash conveying system according to claim 1, characterized in that: A mounting wheel set (5) is rotatably arranged in the middle of the mounting shaft (4), and brushes (6) are fixedly arranged between the mounting wheel sets (5); the brushes (6) and the mounting wheel sets (5) are in contact with the pipe wall, and a dust collecting pipe (7) is fixedly arranged at the lower end of the base (1).
3. The auxiliary device for maintenance of pneumatic ash conveying system according to claim 2, characterized in that: The interfaces of the dust collecting pipe (7) located inside the base (1) are all located below the mounting wheel set (5); a bracket (8) is fixedly arranged at the center of the base (1); the bracket (8) is arranged in a three-pointed star shape, and three brackets (8) are evenly arranged around the base (1).
4. The auxiliary device for maintenance of pneumatic ash conveying system according to claim 3, characterized in that: A through hole (9) is provided in the middle of the bracket (8), and a rotating shaft (10) is provided in the middle of the through hole (9). The rotating shaft (10) is rotatably connected to the bracket (8), and a drill bit (11) is fixedly provided at the other end of the rotating shaft (10).
5. The auxiliary device for maintenance of pneumatic ash conveying system according to claim 4, characterized in that: An impeller (12) is fixedly arranged around the drill bit (11), and the outer diameter of the impeller (12) is consistent with the outer diameter of the bracket (8). A mounting block (13) is arranged on one side of the impeller (12) close to the bracket (8), and the mounting block (13) is fixedly connected to the base (1).
6. The auxiliary device for maintenance of pneumatic ash conveying system according to claim 5, characterized in that: An air nozzle (14) is provided on one side of the mounting block (13) close to the impeller (12), and air pipes (15) are fixedly provided on both sides of the dust collecting pipe (7) at the lower end of the base (1), and two air pipes (15) form a group, with a total of three groups being provided.
7. The auxiliary device for maintenance of pneumatic ash conveying system according to claim 6, characterized in that: One end of the air pipe (15) is connected to the air nozzle (14); an outer pipe (16) is fixedly provided on the side of the bracket (8) away from the drill bit (11), and the outer pipe (16) is located outside the through hole (9); the outer pipe (16) is connected to the dust collecting pipe (7), and an inner pipe (17) is fixedly provided inside the outer pipe (16) in the middle of the through hole (9); the other end of the air pipe (15) passes through the outer pipe (16) and is connected to the inner pipe (17).