Automatic soot blower for flue of electrolytic cell

Abstract

The utility model relates to the field of aluminum electrolysis 500KA series electrolytic cell flues, in particular to an automatic soot blowing device for an electrolytic cell flue, which comprises a gas source used for spraying gas, a gas outlet pipe connected with the gas source and used for guiding gas flow, and a blowing pipe with one open end and the other closed end, and the open end of the blowing pipe is connected with the gas outlet pipe. A plurality of injection holes are formed in the side face of the injection pipe at equal intervals, the injection pipe is located in the electrolytic cell flue, independent and fixedly connected supporting plates are arranged at an inlet and an outlet of the electrolytic cell flue respectively, and a via hole for the injection pipe to pass through is formed in the center of each supporting plate. The blowing pipe passes through the via holes in the supporting plates at the inlet and the outlet, then is supported and is positioned at the central position of the flue of the electrolytic cell, the opening end of the blowing pipe is provided with a matching ring for assisting the connection of the air outlet pipe and the opening end of the blowing pipe, and the inner diameter of the matching ring at the connecting part is slightly greater than the outer diameter of the blowing pipe for stable connection. By means of the structure, the interior of the electrolytic cell flue can be cleaned.

Description

Technical Field

[0001] The utility model relates to the field of flues of 500KA series electrolytic cells of aluminum electrolysis, in particular to an automatic soot blowing device for the flue of an electrolytic cell. Background Art

[0002] The flue gas in the aluminum electrolytic cell is sucked into the dust collector through the flue of the cell by the exhaust fan and reacts with fresh alumina. With long-term production, a large amount of dust falls into the flue of the cell, seriously blocking the pipeline, resulting in the inability of the flue gas in the cell to be sucked into the dust collector for recycling, which has a huge impact on the health of employees, process production and environmental protection. Manually entering the electrolytic cell for soot blowing is not only labor-intensive but also increases safety hazards. Utility Model Content

[0003] In view of the above problems, an automatic soot blowing device for an electrolytic cell flue is provided, comprising a gas source for ejecting gas, an air outlet pipe connected to the gas source and guiding the airflow, and a blow pipe with one end open and the other end closed, the open end of the blow pipe being connected to the air outlet pipe, a plurality of blow holes being equidistantly provided on the side of the blow pipe, and the blow pipe being located in the flue of the electrolytic cell.

[0004] Preferably, an independent and fixedly connected support plate is provided at the inlet and outlet of the electrolytic cell flue, and a through hole for the blowing pipe to pass through is provided at the center of the support plate. After the blowing pipe passes through the through holes on the support plates at the inlet and outlet, it is supported and located at the center of the electrolytic cell flue.

[0005] Preferably, the open end of the blow pipe is provided with a mating ring for assisting the connection between the air outlet pipe and the open end of the blow pipe. The inner diameter of the mating ring at the connection portion is larger than the outer diameter of the blow pipe, and is used to ensure the air tightness of the entire device after the air outlet pipe and the mating ring are plugged in and the smooth flow of the air source from the air outlet pipe through the blow pipe.

[0006] Preferably, the open end of the blow pipe is provided with a fan blade fixedly connected to the inner wall of the blow pipe, and when the gas ejected from the outlet pipe flows through the fan blade, the fan blade is driven to rotate, and the rotation of the fan blade drives the blow pipe fixedly connected thereto to rotate.

[0007] Preferably, a dust blocking piece for covering the blowing hole is provided on the outer wall of the blowing pipe, and a rotating groove hinged to the dust blocking piece is provided at a position of the blowing hole near the opening end of the blowing pipe, and a reset mechanism is provided near the hinged part of the dust blocking piece to ensure that the dust blocking piece is tightly fitted to the outer wall of the blowing pipe.

[0008] Preferably, the gas source can control the opening and closing time through a timing starting component.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] 1. The utility model has an innovative design in the cleaning of the flue of the electrolytic cell. By installing a blowing pipe that runs through the entire flue inside the flue of the electrolytic cell, the automatic cleaning of the inner wall of the flue of the electrolytic cell is realized. When the flue of the electrolytic cell stops working, the blowing pipe can start and blow out airflow to comprehensively clean the inner wall of the flue of the electrolytic cell. This design can effectively blow off the dust adhering to the inner wall of the flue of the electrolytic cell and discharge it through the flue, thereby keeping the flue of the electrolytic cell clean and unobstructed. Through the implementation of the utility model, the cleaning efficiency of the flue of the electrolytic cell can be greatly improved, and the workload and safety hazards of manual cleaning can be reduced. At the same time, regular cleaning of the electrolytic cell flue can also effectively prevent dust from clogging the pipe and ensure the smooth discharge of the electrolytic cell flue gas, which is of great significance to ensuring the normal progress of the process production, maintaining the health of employees and protecting the environment. In summary, the utility model realizes the automatic cleaning of the inner wall of the electrolytic cell flue by arranging a blowing pipe in the electrolytic cell flue, improves the cleaning efficiency, reduces the labor intensity and safety risks of manual labor, and has a positive promoting effect on the normal operation of the electrolytic cell and environmental protection.

[0011] 2. The utility model has further optimized and upgraded the electrolytic cell flue cleaning technology. Its blowing pipe can not only work normally in the electrolytic cell flue, but also has a rotation function. This design innovation enables the blowing pipe to rotate flexibly during the cleaning process, thereby expanding the blowing range of the blowing pipe and achieving a more comprehensive cleaning coverage of the inner wall of the electrolytic cell flue. By rotating the blowing pipe, the utility model can ensure that every corner of the inner wall of the electrolytic cell flue can be effectively cleaned without leaving dead corners. This comprehensive cleaning method can completely remove the dust adhering to the inner wall of the flue, making the cleaning effect more significant. In addition, the design of the rotating blowing pipe also improves the cleaning efficiency. Due to the wider blowing range, the cleaning work can be completed faster, reducing the time and labor cost required for cleaning. This not only improves work efficiency, but also reduces the labor intensity of cleaning work. In summary, the utility model adopts the design of a rotating blowing pipe to achieve a more comprehensive cleaning coverage of the inner wall of the electrolytic cell flue, improve the cleaning effect and efficiency, and provide strong support for the normal operation and environmental protection of the electrolytic cell.

[0012] 3. The utility model has made careful improvements in the design of the blowing pipe, especially by adding a dust shield outside the blowing hole. This innovative design not only prevents dust from entering the blowing hole, but also improves the cleaning effect. During the non-cleaning period, the dust shield always keeps a close fit with the outer wall of the blowing pipe, like a barrier, effectively covering the blowing hole, thereby preventing dust or other impurities from entering the inside of the blowing pipe, ensuring the cleanliness and smooth flow of the blowing pipe. When cleaning is required, the airflow is ejected through the blowing hole, and the dust shield will form a specific angle under the action of the rotating groove. This angle not only ensures that the airflow can pass smoothly, but more importantly, the dust shield will guide and adjust the ejected airflow. Under the precise control of the rotating trough, the ash baffle can accurately guide the direction of the airflow, ensuring that the ejected gas can directly act on the inner wall of the electrolytic cell flue, thereby effectively blowing off the adhered dust and guiding the dust to be discharged smoothly from the outlet of the electrolytic cell flue. This design not only enhances the pertinence and efficiency of the cleaning work, but also ensures that the dust will not fly around during the cleaning process, further improving the cleanliness and safety of the working environment. In summary, the utility model, by adding an ash baffle, not only prevents dust from entering, but also optimizes the cleaning effect, providing a more convenient and efficient solution for the cleaning and maintenance of the electrolytic cell flue. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The present invention is an overall stereoscopic diagram of an automatic soot blowing device for an electrolytic cell flue.

[0014] Figure 2 The present invention is a stereoscopic diagram of the main parts of an automatic soot blowing device for an electrolytic cell flue.

[0015] Figure 3 The present invention is a three-dimensional diagram of a support plate of an automatic soot blowing device for an electrolytic cell flue.

[0016] Figure 4 The present invention is a stereoscopic diagram of a blowing pipe of an automatic soot blowing device for an electrolytic cell flue.

[0017] Figure 5 The present invention is a stereoscopic diagram of the blowing pipe and the exhaust pipe of the automatic soot blowing device of the flue of an electrolytic cell.

[0018] Figure 6 The present invention is a front view of the blowing pipe of an automatic soot blowing device for an electrolytic cell flue.

[0019] Figure 7 The present invention is a stereoscopic diagram of an ash baffle of an automatic ash blowing device for an electrolytic cell flue.

[0020] Figure 8 The present invention is a stereoscopic diagram of a rotating tank of an automatic soot blowing device for an electrolytic cell flue.

[0021] The numbers in the figure are: 1, blowing pipe; 11, blowing hole; 12, matching ring; 13, fan blade; 14, dust blocking plate; 15, rotating groove; 2, air outlet pipe; 3, support plate; 31, through hole. DETAILED DESCRIPTION

[0022] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Reference Figure 1-Figure 5 : An automatic soot blowing device for an electrolytic cell flue comprises a gas source for ejecting gas, an air outlet pipe 2 connected to the gas source and guiding the airflow, and a blow pipe 1 with an open end and a closed end. The open end of the blow pipe 1 is connected to the air outlet pipe 2, and a plurality of blow holes 11 are equidistantly provided on the side of the blow pipe 1. The blow pipe 1 is located in the flue of the electrolytic cell.

[0024] In the aluminum electrolysis industry, the cleaning of the flue of the electrolytic cell currently still mainly relies on manual labor, which not only consumes a lot of manpower but also poses a safety hazard. In order to solve this problem, the utility model proposes an automatic soot blowing device, which provides a blowing pipe 1 that runs through the entire flue in the flue of the electrolytic cell, wherein the blowing pipe 1 is open at one end and closed at the other end, and a plurality of blowing holes 11 are equidistantly arranged on the side, and the air source is connected to the open end of the blowing pipe 1 through the air outlet pipe 2. Because the other end of the blowing pipe 1 is a closed design, the gas blown out by the air source can only be ejected through the blowing holes 11 on the side of the blowing pipe 1 when it is guided to the blowing pipe 1 through the air outlet pipe 2. In this way, the inner wall of the flue of the electrolytic cell can be effectively blown, thereby achieving the technical effect of cleaning.

[0025] Reference Figure 1-Figure 3 : An independent and fixedly connected support plate 3 is provided at the inlet and outlet of the electrolytic cell flue, and a through hole 31 for the blowing pipe 1 to pass through is provided at the center of the support plate 3. After the blowing pipe 1 passes through the through hole 31 on the support plate 3 at the inlet and outlet, it is supported and located at the center of the electrolytic cell flue.

[0026] In order to confirm the position of the blowing pipe 1 in the flue of the electrolytic cell, support plates 3 are provided at the inlet and outlet of the flue of the electrolytic cell, and through holes 31 are provided on the support plates 3. The support plates 3 not only provide space for the blowing pipe 1 to pass through, but also play a supporting and limiting role. When the blowing pipe 1 passes through the through holes 31 on the support plates 3 at the inlet and outlet of the flue of the electrolytic cell, it is located at the center of the flue of the electrolytic cell. This position can maximize the blowing effect of the blowing holes 11 on the side of the blowing pipe 1.

[0027] Reference Figure 1-Figure 6: The open end of the blow pipe 1 is provided with a matching ring 12 for assisting the connection between the air outlet pipe 2 and the open end of the blow pipe 1. The inner diameter of the matching ring 12 at the connection portion is larger than the outer diameter of the blow pipe 1, and is used to ensure the air tightness of the entire device after the air outlet pipe 2 and the matching ring 12 are plugged in and the smooth flow of gas from the air outlet pipe 2 through the blow pipe 1.

[0028] The matching ring 12 is used to assist the connection between the gas outlet pipe 2 and the blow pipe 1, which helps the gas outlet pipe 2 to better fit with the open end of the blow pipe 1, thereby achieving the technical effect of accurately guiding the gas into the blow pipe 1. At the same time, the inner diameter of the matching ring 12 at the connection part is larger than the outer diameter of the blow pipe 1, which facilitates a stable connection on the one hand, and on the other hand, when the blow pipe 1 passes through the through hole 31 on the support plate 3, the matching ring 12 can also play a limiting role, thereby preventing the blow pipe 1 without a limiting device from being blown away from the flue of the electrolytic cell due to excessively strong airflow.

[0029] Reference Figure 6 The open end of the blowing pipe 1 is provided with a fan blade 13 fixedly connected to the inner wall of the blowing pipe 1. When the gas ejected from the outlet pipe 2 flows through the fan blade 13, the fan blade 13 will be driven to rotate, and the rotation of the fan blade 13 will drive the blowing pipe 1 fixedly connected thereto to rotate.

[0030] When the airflow flows through the fan blades 13 at the open end of the blowing tube 1, the airflow drives the fan blades 13 to rotate, and the rotation of the fan blades 13 drives the blowing tube 1 fixedly connected thereto to rotate. At this time, the gas in the blowing tube 1 is ejected through the blowing hole 11. Therefore, the range of the spraying is expanded from the previously specified direction to the current all-round spraying, so that the cleaning effect is further improved. In order to stabilize and support the rotation of the blowing tube 1, a rotating bearing can be added in the through hole 31 of the support plate 3, and balls can be added to the contact surfaces between the air outlet pipe 2 and the blowing tube 1 and between the matching ring 12 and the support plate 3. The above is not the only means to realize the simple rotation of the blowing tube 1, but only a relatively simple design example. Therefore, the blowing tube 1 can perform all-round cleaning on the inner wall of the flue of the electrolytic cell.

[0031] Reference Figure 7 and Figure 8 : A dust blocking piece 14 for covering the blowing hole 11 is provided on the outer wall of the blowing pipe 1, and a rotating groove 15 hinged to the dust blocking piece 14 is opened near the opening end of the blowing pipe 1. The dust blocking piece 14 is provided with a reset mechanism near the hinged part to ensure that the dust blocking piece 14 is tightly fitted to the outer wall of the blowing pipe 1.

[0032] In order to prevent the smoke and dust in the flue of the electrolytic cell from falling into the blowing pipe 1 through the blowing hole 11 during non-cleaning time, an ash blocking sheet 14 is arranged on the outer wall of the blowing pipe 1 to prevent the smoke and dust from entering the blowing hole 11 during non-working time. The function of the reset mechanism is to ensure that the ash blocking sheet 14 is tightly fitted with the outer wall of the blowing pipe 1 during non-cleaning time. Therefore, the reset mechanism can be a reset spring arranged at the hinge of the ash blocking sheet 14 and the rotating groove 15. In the initial state, due to the elastic force of the reset spring itself, the ash blocking sheet 1 4 is always in close contact with the outer wall of the blowing pipe 1 until the blowing hole 11 is completely covered. When the device is working, the airflow provided by the air source is ejected through the blowing hole 11, thereby blowing up the dust blocking sheet 14 covering the blowing hole 11. Due to the existence of the rotating groove 15 and the return spring, the dust blocking sheet 14 can only be blown up at an oblique angle. The angle formed by the dust blocking sheet 14 after being blown up can effectively guide the airflow blown out from the blowing hole 11, so that the dust inside the electrolytic cell can be effectively blown out from the outlet.

[0033] The gas source controls the opening and closing time through a timing starting component.

[0034] In order to stagger the cleaning time with the working time of the electrolytic cell flue, the utility model designs a timed starting component for the gas source to control its opening and closing. The setting of the device can reduce manual intervention and prevent forgetting to clean due to manual negligence.

[0035] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. An automatic soot blowing device for an electrolytic cell flue, comprising a gas source for ejecting gas, characterized in that: The invention comprises an outlet pipe (2) connected to an air source and guiding an air flow, and a blow pipe (1) with one end open and the other end closed, wherein the open end of the blow pipe (1) is connected to the outlet pipe (2), a plurality of blow holes (11) are equidistantly provided on the side of the blow pipe (1), and the blow pipe (1) is located in the flue of the electrolytic cell.

2. The automatic soot blowing device for the flue of an electrolytic cell according to claim 1, characterized in that: An independent and fixedly connected support plate (3) is provided at the inlet and outlet of the flue of the electrolytic cell, and a through hole (31) for the blowing pipe (1) to pass through is provided at the center of the support plate (3). The blowing pipe (1) is supported and located at the center of the flue of the electrolytic cell after passing through the through holes (31) on the support plates (3) at the inlet and outlet.

3. The automatic soot blowing device for the flue of an electrolytic cell according to claim 2, characterized in that: The open end of the blow pipe (1) is provided with a matching ring (12) for assisting the connection between the air outlet pipe (2) and the open end of the blow pipe (1); the inner diameter of the matching ring (12) at the connection portion is larger than the outer diameter of the blow pipe (1), and is used to ensure the air tightness of the entire device after the air outlet pipe (2) and the matching ring (12) are plugged in and connected, and the smoothness of the air source flowing from the air outlet pipe (2) through the blow pipe (1).

4. The automatic soot blowing device for the flue of an electrolytic cell according to claim 3, characterized in that: The open end of the blowing pipe (1) is provided with a fan blade (13) fixedly connected to the inner wall of the blowing pipe (1). When the gas ejected from the gas outlet pipe (2) flows through the fan blade (13), the fan blade (13) is driven to rotate, and the rotation of the fan blade (13) drives the blowing pipe (1) fixedly connected thereto to rotate.

5. The automatic soot blowing device for the flue of an electrolytic cell according to claim 1, characterized in that: The outer wall of the blowing pipe (1) is provided with a dust shield (14) for covering the blowing hole (11); a rotating groove (15) hinged to the dust shield (14) is provided at a position near the opening end of the blowing pipe (1) and the dust shield (14) is provided; and a reset mechanism is provided at the hinged part of the dust shield (14) to ensure that the dust shield (14) is tightly fitted to the outer wall of the blowing pipe (1).

6. The automatic soot blowing device for the flue of an electrolytic cell according to claim 1, characterized in that: The gas source controls the opening and closing time through a timing starting component.

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