Electrolytic crane charging port expansion seal and exhaust dust collection device

Abstract

The utility model belongs to electrolytic crown feeding technical field, concretely relates to a kind of electrolytic crown feeding opening expansion seal and exhaust dust collecting device, comprising: fixed pipe, the fixed pipe one side is fixed with the conveying pipe being communicated with its inside;Pipe cover is fixed in the top of the conveying pipe by bolt;Lifting pipe is sleeved in the fixed pipe outside and is lifted along the fixed pipe;Sealing air bag is sleeved and fixed in the feeding opening of the lifting pipe bottom;Exhaust dust collecting pipe is fixed in the inner wall of the lifting pipe bottom end and top vertical upward penetrates the pipe cover and is slidably matched with the pipe cover.The utility model sets up fixed pipe and lifting pipe and other components, and sealing air bag is arranged at the position of lifting pipe bottom feeding opening.When discharging, the sealing air bag is inflated by external air pump, so that the air bag is tightly attached to the inner wall of the receiving port on the top of the trolley hopper, the gap is eliminated, and the leakage of powdery material during discharging is avoided, which not only avoids material waste, but also avoids affecting the surrounding environment.

Description

Technical Field

[0001] This utility model belongs to the field of electrolytic crane feeding technology, specifically relating to an expansion sealing and exhaust dust collection device for the feeding port of an electrolytic crane. Background Technology

[0002] In the aluminum electrolysis production process, it is necessary to replenish the electrolytic cells with raw materials such as alumina, fluoride salts, and broken electrolytes. The equipment responsible for this replenishment is a multi-functional overhead crane for aluminum electrolysis. The trolley of the multi-functional overhead crane is equipped with a material hopper. During replenishment, a feeder on the roof of the plant transports the raw materials to be replenished and adds them to the hopper. Traditionally, this relies mainly on personal experience to determine whether the feed inlet of the conveyor pipe and the receiving inlet of the hopper are aligned, but its accuracy and reliability are questionable, and the process is cumbersome. To address this, patent CN220166295U discloses an automatic positioning and remote control feeding system for a multi-functional overhead crane for aluminum electrolysis. This system uses an identification code and a scanner. The identification code corresponds to the material in the hopper, and the scanner scans and identifies the information within the identification code. The combination of the identification code and the scanner facilitates automatic positioning of the overhead crane to the target hopper, enabling automatic positioning and remote control feeding of different raw material hoppers. The system is simple to operate, reduces the labor intensity of workers, and improves work efficiency, meeting actual production needs.

[0003] Undeniably, the automatic positioning and remote control feeding system for the multi-functional overhead crane in aluminum electrolysis disclosed in this patent can indeed achieve the above-mentioned effects, but it still has some shortcomings: In actual use, in order to facilitate the feeding port of the conveying pipe to extend into the receiving port of the material box for feeding, there will be a certain gap between the feeding port of the conveying pipe and the receiving port of the material box. This will cause powdery materials to leak out from the gap during the transmission process, resulting in waste of production materials, and at the same time, it will also pollute the workshop and the surrounding environment, which is difficult to clean.

[0004] A screw jack is a basic lifting component, characterized by its compact structure, small size, light weight, easy installation, flexible use, and good stability. It uses a motor to drive a screw for vertical movement. In existing technology, multiple screw jacks can be assembled together to form a lifting platform, using angle brackets and couplings, and a single motor can drive the screws of multiple jacks to move synchronously up and down. Figure 1The lifting platform shown is an assembly of four rectangularly distributed screw jacks, driven by a single motor, which synchronously moves the screws of all four jacks up and down. In actual use, to prevent dust and other environmental contaminants from affecting the screws, a circular tube (with a gap between the tube and the screw) is fixed to the corner unit and fitted onto the screw. The end of the tube away from the corner unit is sealed. A screw guard, fitted onto the screw and connected to its end, is fixed to the end of the corner unit away from the circular tube. The circular tube and screw guard protect the screws from environmental dust and other contaminants. The above content represents existing technology.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this utility model is to provide an expansion sealing and exhaust dust collection device for the feed port of an electrolysis crane, so as to solve the problems existing in the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: An expansion sealing and exhaust dust collection device for the feed port of an electrolytic crane includes: A fixed tube, wherein a conveying tube communicating with its interior is fixed to one side of the fixed tube; The cap is fixed to the top of the fixed pipe by bolts; A lifting tube that is sleeved on the outside of the fixed tube and moves up and down along the fixed tube; A sealing airbag is fitted and fixed to the bottom feeding port of the lifting pipe; An exhaust dust collection pipe fixed to the inner wall of the bottom end of the lifting pipe and vertically extending upward through the pipe cover and slidingly engaging with the pipe cover.

[0008] Furthermore, a guide tube communicating with the fixed tube is fixed to the top of the pipe cover, and the top of the exhaust dust collection pipe passes through the guide tube and slides in cooperation with it.

[0009] Furthermore, four connecting plates are evenly spaced and fixed on the outer wall of the lifting pipe.

[0010] Furthermore, the exhaust dust collection pipe is located at an eccentric position on the lifting pipe; a first fixing plate extending radially is fixed on the inner wall of the bottom end of the lifting pipe; a second fixing plate corresponding to the first fixing plate is fixed on the outside of the exhaust dust collection pipe; and a nut is threaded through the through holes on the first and second fixing plates using bolts to fix the bottom end of the exhaust dust collection pipe to the inner wall of the bottom end of the lifting pipe.

[0011] Furthermore, the fixed tube is fixed to the external feeding platform; the external feeding platform is also fixed with a lifting drive component for driving the lifting tube to move up and down.

[0012] Furthermore, the lifting drive component is a four-bar screw lifting platform; an adjusting screw is installed at the bottom end of the screw of the four-bar screw lifting platform, and the adjusting screw passes through the connecting plate; the upper and lower surfaces of the connecting plate are provided with adjusting nuts that are threadedly engaged with the adjusting screw.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This invention includes components such as a fixed pipe and a lifting pipe, with a sealing airbag installed at the bottom of the lifting pipe where the material is fed. During unloading, an external air pump inflates the sealing airbag, ensuring a tight seal between the airbag and the inner wall of the material receiving port at the top of the trolley's hopper. This eliminates gaps and prevents leakage of powdery materials during unloading, thus avoiding both material waste and environmental impact. Furthermore, this invention also includes a dust collection pipe and a corresponding guide pipe for convenient exhaust and dust collection of gases and dust generated within the receiving hopper during unloading. Attached Figure Description

[0014] Figure 1 This is a 4-bar lead screw lifting platform in the existing technology; Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 for Figure 2 Right view; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the structure of the lifting pipe and the fixing pipe of this utility model; Figure 6 This is a schematic diagram of the structure of the lifting pipe and the exhaust dust collection pipe of this utility model; Figure 7 for Figure 5 Top view.

[0015] Explanation of key figure labels: 1. Fixed pipe; 11. Conveying pipe; 2. Pipe cover; 21. Guide pipe; 3. Lifting pipe; 31. Connecting plate; 32. First fixed plate; 4. Sealing airbag; 5. Exhaust dust collection pipe; 51. Second fixed plate; 6. 4-bar screw lifting platform; 61. Screw; 62. Adjusting screw; 63. Adjusting nut; 7. Trolley material box. Detailed Implementation

[0016] The technical solution of this utility model patent will be clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] Example See appendix Figure 1-7 An expansion sealing and exhaust dust collection device for the feed port of an electrolytic crane, comprising: Fixed pipe 1, with a conveying pipe 11 connected to its interior fixed on one side; fixed pipe 1 is fixed to an external feeding platform; conveying pipe 11 is connected to an external screw conveyor, and the material is conveyed into fixed pipe 1 by means of the external screw conveyor. The pipe cap 2 is fixed to the top of the fixed pipe 1 by bolts; A lifting pipe 3 is sleeved outside the fixed pipe 1 and moves up and down along the fixed pipe 1. Four connecting plates 31 are evenly spaced on the outer wall of the lifting pipe 3.

[0018] A sealing airbag 4 is fitted and fixed to the bottom feeding port of the lifting pipe 3. It should be noted that the sealing airbag 4 is ring-shaped, with a double-layer structure in the middle part connected to an external inflation device. When air is inflated into the sealing airbag 4, the middle part bulges outward to achieve a sealing effect. A dust collection pipe 5 is fixed to the inner wall of the bottom end of the lifting pipe 3 and extends vertically upward through the pipe cover 2 and slides with the pipe cover 2; specifically, a guide pipe 21 connected to the fixed pipe 1 is fixed to the top of the pipe cover 2, and the top of the exhaust dust collection pipe 5 passes through the guide pipe 21 and slides with it.

[0019] In this embodiment, the exhaust dust collection pipe 5 is located at an eccentric position of the lifting pipe 3; a first fixing plate 32 extending radially is fixed on the inner wall of the bottom end of the lifting pipe 3; a second fixing plate 51 corresponding to the first fixing plate 32 is fixed on the outside of the dust collection pipe 5; after bolts pass through the through holes on the first fixing plate 32 and the second fixing plate 51, nuts are threaded to fix the bottom end of the exhaust dust collection pipe 5 to the inner wall of the bottom end of the lifting pipe 3; it should be noted that when the lifting pipe 3 descends to the lowest point, a portion of the top of the exhaust dust collection pipe 5 remains inside the guide pipe 21 to prevent the top of the exhaust dust collection pipe 5 from detaching from the guide pipe 21 and tilting. In this embodiment, a lifting drive component for driving the lifting pipe 3 to rise and fall is also fixed on the external feeding platform. The lifting drive component used in this embodiment is a four-bar screw lifting platform 6 (see...). Figure 1This part is existing technology; an adjusting screw 62 is installed at the bottom end of the screw 61 of the 4-bar screw lifting platform 6, and the adjusting screw 62 passes through the connecting plate 31; the upper and lower surfaces of the connecting plate 31 are provided with adjusting nuts 63 that are threadedly engaged with the adjusting screw 62.

[0020] In use, the fixed pipe 1 is vertically fixed to the external feeding platform. The pipe cap 2 is fixed to the top of the fixed pipe 1 using bolts, ensuring that the guide pipe 21 and the fixed pipe 1 are coaxial. A four-screw lifting platform 6 is installed on the external feeding platform, with four screws 61 distributed outside the fixed pipe 1. The lifting pipe 3 is then fitted over the fixed pipe 2, and the adjusting screw 62 is passed through the through hole of the connecting plate 31. The connecting plate 31 and the adjusting screw 62 are connected using the adjusting nut 63. Observe whether the lifting pipe 3 is tilted. If tilted, fine-tune the corresponding adjusting nut 63 until the verticality of the lifting pipe 3 is appropriate. It should be noted that clockwise tightening raises the connecting plate 31, and counterclockwise lowers it. When installing the dust collection pipe 5, the top of the dust collection pipe 5 is inserted into the guide pipe 21, and the bottom is fixed to the first fixed plate 32 and the second fixed plate 51 using bolts.

[0021] When adding material to the trolley's hopper 7, the top receiving port of the trolley's hopper 7 moves to correspond with the bottom feeding port of the lifting pipe 3. The lifting pipe 3 is then driven downwards by the four-screw lifting platform 6 until the sealing airbag 4 enters the top receiving port of the trolley's hopper 7. The four-screw lifting platform 6 is then shut off. An external air pump is used to inflate the sealing airbag 4, ensuring that the airbag 4 fits tightly against the inner wall of the top receiving port of the trolley's hopper 7, eliminating gaps and preventing material leakage.

[0022] The external screw conveyor is started, transporting the material into the conveying pipe 11, then into the fixed pipe 1 and the lifting pipe 3, and finally into the trolley hopper 7. In actual use, a negative pressure fan and an industrial dust collector are installed at the top of the guide pipe 21. When the negative pressure fan is working, the gas and dust generated in the receiving hopper during unloading are drawn into the exhaust dust collection pipe 5 and then into the industrial dust collector through the exhaust dust collection pipe 5 and the guide pipe 21, thus achieving the discharge of gas and collection of dust in the receiving hopper. This avoids material waste and environmental impact. After unloading is completed, the vent valve of the sealing airbag 4 is opened, and the four-bar screw lifting platform 6 is started to raise the lifting pipe 3 to its initial position.

[0023] Finally, it should be noted that the guide tube 21 has a certain height, and when the dust collection tube 5 moves upward, its top will not protrude from the top of the guide tube 21.

[0024] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. An expansion sealing and exhaust dust collection device for the feed inlet of an electrolytic crane, characterized in that, include: A fixed tube, wherein a conveying tube communicating with its interior is fixed to one side of the fixed tube; The cap is fixed to the top of the fixed pipe by bolts; A lifting tube that is sleeved on the outside of the fixed tube and moves up and down along the fixed tube; A sealing airbag is fitted and fixed to the bottom feeding port of the lifting pipe; An exhaust dust collection pipe fixed to the inner wall of the bottom end of the lifting pipe and vertically extending upward through the pipe cover and slidingly engaging with the pipe cover.

2. The expansion sealing and exhaust dust collection device for the feed port of the electrolytic crane according to claim 1, characterized in that, The top of the pipe cover is fixed with a guide pipe that communicates with the fixed pipe, and the top of the exhaust dust collection pipe passes through the guide pipe and slides with it.

3. The expansion sealing and exhaust dust collection device for the feed port of the electrolytic crane according to claim 1, characterized in that, Four connecting plates are evenly spaced and fixed on the outer wall of the lifting pipe.

4. The expansion sealing and exhaust dust collection device for the feed port of the electrolytic crane according to claim 1, characterized in that, The exhaust dust collection pipe is located at an eccentric position of the lifting pipe; a first fixing plate extending radially is fixed on the inner wall of the bottom end of the lifting pipe; a second fixing plate corresponding to the first fixing plate is fixed on the outside of the exhaust dust collection pipe; a nut is threaded through the through holes on the first and second fixing plates using bolts to fix the bottom end of the exhaust dust collection pipe to the inner wall of the bottom end of the lifting pipe.

5. The expansion sealing and exhaust dust collection device for the feed port of the electrolytic crane according to claim 3, characterized in that, The fixed pipe is fixed to the external feeding platform; the external feeding platform is also fixed with a lifting drive component for driving the lifting pipe to rise and fall.

6. The expansion sealing and exhaust dust collection device for the feed port of the electrolytic crane according to claim 5, characterized in that, The lifting drive component is a 4-bar screw lifting platform; an adjusting screw is installed at the bottom end of the screw of the 4-bar screw lifting platform, and the adjusting screw passes through the connecting plate; the upper and lower surfaces of the connecting plate are provided with adjusting nuts that are threadedly engaged with the adjusting screw.

Images