Maintenance device for dust hopper facility of electric dust remover

Abstract

The invention discloses a maintenance device for an ash bucket facility of an electric dust remover, and belongs to the technical field of ash bucket maintenance devices. According to the technical scheme, the elevator comprises a low-layer platform and a high-layer platform which are arranged on a frame body, a heightening platform is arranged on the low-layer platform, a vertical ladder a used for climbing to the high-layer platform and a vertical ladder b used for climbing to the low-layer platform are further arranged on the frame body, wheels convenient to move are arranged at the bottom of the frame body, locking mechanisms are arranged at the positions of the wheels, and balancing weights are arranged at the bottom of the frame body. The method has the advantages that maintenance coverage is comprehensive and free of dead angles, and the manufacturing cost is reduced.

Description

Technical Field

[0001] This invention relates to a maintenance device for an electrostatic precipitator ash hopper facility, belonging to the technical field of ash hopper maintenance devices. Background Technology

[0002] In sintering and pelletizing processes, electrostatic precipitators (ESPs) are key equipment for purifying high-temperature flue gas. With their significant advantages such as high dust removal efficiency, strong adaptability to operating conditions, and low failure rate, they are widely used in industrial flue gas purification. Their working principle is as follows: when high-temperature, dust-laden flue gas flows through the ESP, the dust particles in the flue gas are adsorbed and captured under the action of the electric field, and then settle into the ash hopper below the equipment. This collected dust is then transferred to the next process via subsequent unloading and conveying equipment, thus achieving the dual purpose of flue gas purification and dust recovery.

[0003] To ensure the stable and reliable operation of electrostatic precipitators (ESPs) and the smooth discharge of dust from the hopper while maintaining monitorable equipment status, various auxiliary facilities are typically installed on the outer walls of the hopper. These include high-level and low-level gauges for monitoring material levels, vibrators to prevent dust bridging and blockage, and manholes for maintenance personnel. The routine inspection and maintenance of these auxiliary facilities is crucial for ensuring the overall operational stability of the ESP. Currently, the industry primarily employs two methods for maintaining these hopper facilities: one is to install a single-layer fixed maintenance platform around the hopper; the other is to temporarily erect a single-layer maintenance platform during maintenance operations. Both methods provide operational support for maintenance personnel.

[0004] However, the existing maintenance platform solutions mentioned above have revealed many defects and shortcomings in practical applications, making it difficult to meet the needs of efficient and economical maintenance in industrial production. Specifically, these shortcomings are reflected in the following two aspects: On the one hand, it cannot fully cover the maintenance needs of all facilities in the ash hopper. Due to the different installation heights of various auxiliary facilities on the ash hopper and their scattered installation locations, the existing single-layer maintenance platform has a fixed height and can only accommodate the maintenance operations of some facilities. For facilities installed at heights higher or lower than the platform, maintenance personnel have difficulty reaching the work position, resulting in the inability to carry out maintenance work on some facilities smoothly, which in turn affects the operational stability of the ash hopper and even the entire electrostatic precipitator.

[0005] On the other hand, the construction and use costs of maintenance platforms remain high. In sintering and pelletizing production scenarios, electrostatic precipitators are typically equipped with multiple ash hoppers, requiring a considerable number of maintenance platforms. If a single-layer fixed maintenance platform is used, its main body is a steel structure, resulting in high material and processing / installation costs. If a temporary single-layer maintenance platform is used, it not only requires a large investment in steel, scaffolding, and other materials, but also consumes a significant amount of manpower for construction and dismantling. Furthermore, the construction period for temporary platforms is long, further increasing the overall cost of maintenance operations and hindering companies from controlling production and operation costs.

[0006] Chinese patent application No. 2023215514638 discloses a maintenance channel structure for a sintering machine head dust collector. The maintenance channel structure of this patent can only meet the maintenance needs of the dust collector top cover and internal anode system. For key facilities such as level gauges and vibrators on the outer wall of the ash hopper, maintenance personnel cannot reach the work position through the designed channel, which makes it impossible to carry out the maintenance work of these facilities smoothly. Summary of the Invention

[0007] To address the shortcomings of existing technologies, the purpose of this invention is to provide a maintenance device for electrostatic precipitator ash hopper facilities that meets the maintenance needs of all ash hopper facilities and is low in cost.

[0008] The technical solution of the present invention is: a maintenance device for an electrostatic precipitator ash hopper facility, comprising a low platform and a high platform set on a frame, wherein the low platform is provided with a raising platform, and the frame is also provided with a straight ladder a for climbing to the high platform and a straight ladder b for climbing to the low platform, the bottom of the frame is provided with wheels for easy movement, the wheels are provided with a locking mechanism, and the bottom of the frame is provided with a counterweight.

[0009] Both the straight ladder a and the straight ladder b are equipped with guardrails a, and both ends of the straight ladder a and the straight ladder b are fixedly connected to the guardrails a.

[0010] Both the lower and upper platforms are equipped with guardrails.

[0011] The bottom of the straight ladder a is located above the lower platform.

[0012] The frame is a steel frame.

[0013] The frame has a vertical section and an inclined section on each side, and the lower platform extends to the outside of the frame on the side of the vertical section.

[0014] The counterweight is fixed inside the counterweight box at the bottom side of the inclined section.

[0015] The heightening platform is located on a low-level platform outside the vertical section.

[0016] Straight ladder a is located on one side of the inclined part of the frame, and straight ladder b is located on one side of the vertical part.

[0017] The beneficial effects of this invention include: 1) Comprehensive and thorough maintenance coverage: This device can flexibly set up maintenance operation platforms of different heights according to the actual installation location and height of each facility to be maintained in the ash hopper; each platform can independently meet the maintenance operation space requirements of the corresponding area facilities, ensuring that the maintenance work of all facilities inside the ash hopper can be carried out smoothly.

[0018] 2) Reduced cost: This device is a simple, mobile steel structure, eliminating the need for customized fixed maintenance structures for each ash hopper. Depending on the actual model of the electrostatic precipitator and the layout of the ash hoppers, only 2-4 units are needed to cover the maintenance needs of all ash hoppers, significantly reducing the overall investment cost of the equipment and demonstrating remarkable economic efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 A schematic diagram showing the location correspondence between each maintenance platform and various facilities in the hopper; Figure 3 This is a top view of the present invention.

[0020] The attached figures are labeled as follows: 1. Frame; 2. High-level platform; 3. Low-level platform; 4. Raising platform; 5. Straight ladder a; 6. Straight ladder b; 7. Counterweight box; 8. Counterweight block; 9. Wheels; 10. Locking mechanism. Detailed Implementation

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the present invention is described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include the three-dimensional spatial dimensions of length, width, and depth.

[0025] The following is in conjunction with the appendix Figure 1 —3. Further explanation of the present invention: A maintenance device for an electrostatic precipitator hopper includes a low platform 3 and a high platform 2 mounted on a frame 1. The low platform 3 has a raised platform 4, utilizing different platform heights to meet the maintenance needs of equipment at different heights within the hopper. The frame 1 also includes a straight ladder a5 for accessing the high platform 2 and a straight ladder b6 for accessing the low platform 3. The bottom of the frame 1 has easily movable wheels 9, with a locking mechanism 10 at each wheel 9. A counterweight 8 is also located at the bottom of the frame 1. The function of the locking mechanism is well-known to those skilled in the art, and its connection to this device is as follows: the base of the locking mechanism is fixed to the bottom of the frame, its locking actuator corresponds to the spoke area of ​​the wheel 9, and the operating component extends to the operating area on the side of the vehicle (not fully shown in the figure). The operating component controls the engagement and disengagement of the locking actuator with the wheel 9, thus locking and unlocking the wheel.

[0026] Both the straight ladders a5 and b6 are equipped with guardrails a, and both ends of the straight ladders a5 and b6 are fixedly connected to the guardrails a. Guardrail a includes an arc-shaped portion (such as...). Figure 3 As shown in the image, it forms a semi-circular structure with the straight ladder to protect the personal safety of people climbing the ladder.

[0027] Both the lower platform 3 and the upper platform 2 are equipped with guardrails b around their outer perimeter. The guardrails b are planar structures with their bottoms fixed vertically to the platforms to protect workers on the platforms and prevent them from falling.

[0028] The bottom of the elevator a5 is located above the lower platform 3. After staff members ascend to the lower platform 3 via elevator b6, they can then ascend to the upper platform 2 via elevator a5 from the lower platform 3.

[0029] The frame 1 is a steel frame, which is highly rigid and ensures the stability of the platform on it.

[0030] The frame 1 has a vertical section and an inclined section on its two sides, with the lower platform 3 extending to the outside of the frame 1 on the vertical section side. The counterweight 8 is fixed inside the counterweight box 7 at the bottom side of the inclined section. The raising platform 4 is located on the lower platform 3 on the outside of the vertical section. When maintenance personnel work on the vertical section side of the platform, the force on that side increases. By placing the counterweight on the opposite side (i.e., the bottom of the inclined section), the overall center of gravity is lowered, the stability of the equipment is improved, and the force on both sides of the platform is more balanced.

[0031] Straight ladder a5 is located on one side of the inclined part of frame 1, and straight ladder b6 is located on one side of the vertical part. Separating the use of straight ladders a5 and b6 allows operators in different areas to use their own routes, avoiding overlapping movement paths.

[0032] When the electrostatic precipitator ash hopper facility requires maintenance, maintenance personnel move the device to a suitable location near the ash hopper, secure the wheels using locking mechanism 10 to prevent them from rotating randomly, and ensure the device's stability. Then, as needed, maintenance personnel use ladder a5 or ladder b6 to reach the corresponding lower platform 3 or upper platform for maintenance work. Figure 2 As shown, platforms of different heights correspond to different maintenance positions on the ash hopper. Maintenance personnel can inspect the low-level gauge and manhole on the ash hopper on the lower platform 3, and inspect the vibrator on the elevated platform 4. They can also enter the manhole through the elevated platform 4. The high-level gauge can be inspected on the upper platform 2. After maintenance is completed, the maintenance personnel leave the maintenance device, the locking mechanism unlocks, and the maintenance device can be moved to other required locations.

[0033] The high-level platform 2 and the low-level platform 3 are equipped with guardrails b, which are fixed to the frame 1 to ensure the safety of personnel during maintenance work. The raised platform 4 is located at one corner of the low-level platform 3 and is higher than the low-level platform 3, allowing for the maintenance of facilities that are difficult to operate from the low-level platform 3.

[0034] To prevent the device from becoming unstable, a steel counterweight box 7 is installed at the rear of the frame 1. A counterweight block 8 is placed inside the counterweight box 7. To prevent the counterweight box 7 from detaching from the steel frame 1, the box body is welded to the steel frame 1 as one piece. To facilitate the transportation of the counterweight block 8 and reduce costs, the counterweight block 8 is a small rectangular block of concrete.

[0035] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A maintenance device for an electrostatic precipitator ash hopper facility, characterized in that, It includes a low platform (3) and a high platform (2) set on the frame (1). The low platform (3) is provided with a height-increasing platform (4). The frame (1) is also provided with a straight ladder a (5) for climbing to the high platform (2) and a straight ladder b (6) for climbing to the low platform (3). The bottom of the frame (1) is provided with wheels (9) for easy movement. The wheels (9) are provided with a locking mechanism (10). The bottom of the frame (1) is provided with a counterweight (8).

2. The maintenance device for the electrostatic precipitator ash hopper facility according to claim 1, characterized in that, Both the straight ladder a (5) and the straight ladder b (6) are equipped with guardrails a, and both ends of the straight ladder a (5) and the straight ladder b (6) are fixedly connected to the guardrails a.

3. The maintenance device for the electrostatic precipitator ash hopper facility according to claim 1, characterized in that, Both the lower platform (3) and the upper platform (2) are equipped with guardrails b around their perimeter.

4. The maintenance device for the electrostatic precipitator ash hopper facility according to claim 1, characterized in that, The bottom of the straight ladder a (5) is located above the lower platform (3).

5. The maintenance device for the electrostatic precipitator ash hopper facility according to claim 1, characterized in that, The frame (1) is a steel frame.

6. The maintenance device for the electrostatic precipitator ash hopper facility according to claim 1, characterized in that, The frame (1) has a vertical section and an inclined section on both sides, and the end of the low platform (3) extends to the outside of the frame (1) on the side of the vertical section.

7. The maintenance device for the electrostatic precipitator ash hopper facility according to claim 6, characterized in that, The counterweight (8) is fixed inside the counterweight box (7) at the bottom side of the inclined part.

8. The maintenance device for the electrostatic precipitator ash hopper facility according to claim 6, characterized in that, The heightening platform (4) is located on the lower platform (3) outside the vertical part.

9. The maintenance device for the electrostatic precipitator ash hopper facility according to claim 6, characterized in that, The straight ladder a (5) is located on one side of the inclined part of the frame (1), and the straight ladder b (6) is located on one side of the vertical part.

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