Efficient tapping main channel structure

Abstract

The utility model relates to the technical field of blast furnace tapping channels, in particular to an efficient tapping main channel structure which comprises a base, a connecting pipe is fixedly connected between the left end and the right end of the inner side of the base, and a tapping channel and a central channel are fixedly connected to the end, away from the base, of the connecting pipe. A hollow shell is fixedly connected to the middle of the inner side of the base, a vertical motor is fixedly connected to the rear portion in the hollow shell, and an output shaft is fixedly connected to the output end of the vertical motor. Through design cooperation, the ejector rod capable of circularly knocking the bottom of the center channel can be arranged at the bottom of the center channel in the center of the tapping channel, the resonant cavity is formed in the lower portion of the interior of the center channel, and the flowing speed of molten iron above the inner sides of the tapping channel and the center channel is increased to a certain degree; impurities in molten iron can be prevented from being attached to the inner side of the tapping channel to slowly form large-size impurities to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace tapping channels, in particular to a high-efficiency tapping main channel structure. Background Art

[0002] The blast furnace taphole is a channel used to guide molten iron from the blast furnace to the molten iron ladle or other storage locations during the ironmaking process. It is a key component of the blast furnace system.

[0003] Upon investigation, the disclosure (announcement) number: CN213835399U discloses a new type of main ditch structure for blast furnace iron tapping. This technology discloses "a new type of main ditch structure for blast furnace iron tapping, including an outer ditch body, two symmetrically distributed support blocks are fixedly connected to the interior of the outer ditch body, the upper ends of the support blocks are fixedly connected to the clamping blocks, the upper ends of the clamping blocks are jointly clamped with the main ditch, the interior of the main ditch is provided with an iron tapping groove, the outer side of the main ditch is provided with a plurality of symmetrically distributed heat conducting blocks, the interior of the main ditch is provided with two symmetrically distributed limiting grooves, the interior of the limiting groove is slidably connected to a limiting rod, the limiting rod is in contact with the outer ditch body, and the lower end of the limiting rod is in contact with the limiting seat. The utility model can fix the outer ditch body and the main ditch by designing the clamping connection between the limiting rod and the limiting groove. When the main ditch needs to be replaced, the pull ring is pulled outward, and the pull ring will drive the limiting rod to move outward, so that the limiting rod is separated from the limiting groove, and the main ditch can be directly taken out upward, making the main ditch easier to replace."

[0004] When the existing iron outlet trough is in use, molten iron flows on the inner side of the iron outlet trough. The molten iron may contain more impurities due to the calcination method. These impurities flow through the iron outlet trough together with the molten iron, but the flow of these impurities is passive, that is, the flow of the molten iron drives the flow of impurities. This causes some impurities to adhere to the inner surface of the iron outlet trough as the molten iron flows. Even if the subsequent molten iron keeps flowing, it cannot drive the impurities to flow together, resulting in the impurities in the subsequent molten iron being blocked and accumulated by the impurities that are attached and cannot move. For a long time, it will not only reduce the flow rate of the water inside the iron outlet trough, but may even cause the molten iron to be blocked in the iron outlet trough. If the flow of the molten iron is not discovered and shut down in time, it is easy to cause production accidents.

[0005] In order to solve the above problems, this application proposes an efficient iron-out main groove structure. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the utility model provides a high-efficiency main tapping channel structure, which can significantly reduce the adhesion of impurities on the inner side of the tapping channel and has the characteristics of rapid temperature reduction during tapping channel maintenance.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: an efficient iron-out main groove structure, comprising a base, a connecting pipe fixedly connected to the middle of the left and right ends of the inner side of the base, the end of the connecting pipe away from the base is fixedly connected to the iron-out groove and the center groove, a resonance cavity is provided at the lower part of the center groove, a hollow shell is fixedly connected to the middle of the inner side of the base, a vertical motor is fixedly connected to the rear of the hollow shell, the output end of the vertical motor is fixedly connected to the output shaft, a disc is fixedly connected to the outer side in front of the output shaft, the top of the disc is slidably connected to a limit plate, a slide groove is provided at the bottom of the limit plate, a push rod is fixedly connected to the middle of the top of the limit plate, a compression spring is slidably connected to the outer side below the push rod, and a rubber block is fixedly connected to the end of the push rod away from the limit plate.

[0008] As a preferred structure of an efficient iron-out main groove of the present invention, the front and rear ends of the center groove are fixedly connected to the top inner side of the iron-out groove, the middle upper front side of the hollow shell is slidingly connected to the outer side of the push rod, the top of the rubber block contacts the bottom end of the center groove, the top of the compression spring is fixedly connected to the middle upper front side of the hollow shell, and the bottom end of the compression spring is fixedly connected to the middle top end of the limit plate, so that the vibration generated by the push rod hitting the center groove is amplified by the resonance cavity, thereby improving the speed of the molten iron flowing above the inner side of the iron-out groove and the center groove to a certain extent, and at the same time avoiding the impurities in the molten iron from adhering to the inner side of the iron-out groove and slowly forming larger impurities to a certain extent.

[0009] As a preferred structure of an efficient iron-out main groove of the utility model, the number of the hollow shells is two, and the hollow shells are distributed on the left and right sides of the bottom of the central groove. The length of the resonance cavity below the interior of the central groove is the same as the distance between the push rods sliding on the tops of the two hollow shells. The resonance cavity can amplify the vibration of the push rod hitting the central groove, thereby increasing the area of vibration transmission to a certain extent.

[0010] As a preferred efficient iron-out main groove structure of the utility model, the output shaft is fixed at the middle position of the lower interior of the disc, and the output shaft drives the disc to perform irregular movement. The width of the slide groove at the bottom of the limiting plate matches the thickness of the disc. The disc can be driven by a vertical motor to rotate irregularly, and cooperate with the limiting plate and the push rod at the top thereof to achieve the purpose of the push rod cyclically knocking the bottom of the center groove at the bottom of the center groove.

[0011] As a preferred structure of an efficient iron-out main groove of the present invention, a heat distribution pipe is fixedly connected to the inside of the connecting pipe, and the end of the heat distribution pipe away from the connecting pipe is fixedly connected to a heat collecting pipe, and the end of the heat collecting pipe away from the heat distribution pipe is fixedly connected to a heat exchanger, and the left and right sides of the inside of the base are fixedly connected to the outside of the heat distribution pipe, and the end of the heat distribution pipe away from the heat collecting pipe is in contact with the left and right surfaces of the iron-out groove and the center groove. When the transportation of molten iron inside the iron-out groove and the center groove is stopped, the heat exchanger can cool the surfaces of the iron-out groove and the center groove to a certain extent through the heat collecting pipe and the heat distribution pipe.

[0012] As a preferred structure of an efficient iron-out main groove of the present invention, the number of the heat distribution tubes is several, and the distribution distance between the heat distribution tubes matches the front-to-back length of the central groove. The distribution direction of the heat distribution tubes is from left to right, and the distribution direction of the heat collecting tubes is from front to back. Several heat distribution tubes directly in contact with the iron-out groove and the central groove are connected to the heat collecting tubes. The heat distribution tubes are distributed from left to right, and the top end on the right side is directly welded to the heat collecting tubes distributed from front to back. The heat of the heat distribution tubes can be concentrated at the heat collecting tubes, and the heat can be transferred to the heat exchanger.

[0013] As a preferred structure of an efficient iron-out main groove of the present invention, interconnected holes are opened on the left and right sides of the base and the inside of the connecting pipe, and the diameter of the holes matches the diameter of the longitudinal section of the heat distribution pipe. The heat distribution pipe passes through the base and the connecting pipe and is welded and fixed to the base and the connecting pipe, so that the heat distribution pipe is in direct contact with the left and right sides of the iron-out groove and the center groove.

[0014] The utility model has the following beneficial effects:

[0015] The high-efficiency iron-out main groove structure designed by the utility model can, through design coordination, set a push rod at the bottom of the center groove at the center of the iron-out groove, which can cyclically knock the bottom of the center groove, and a resonance cavity is opened at the lower part of the center groove. The vibration generated by the push rod knocking the center groove is amplified by the resonance cavity, thereby improving the speed of the molten iron flowing over the inner side of the iron-out groove and the center groove to a certain extent. At the same time, the cyclic knocking of the connecting rod is coordinated with the amplified vibration of the resonance cavity, which can avoid to a certain extent the impurities in the molten iron adhering to the inner side of the iron-out groove and slowly forming larger impurities, resulting in the subsequent molten iron being blocked by the larger impurities and reducing the flow rate.

[0016] The high-efficiency main tapping groove structure designed by the utility model can, through design coordination, enable the device to stop transporting molten iron inside the tapping groove and the center groove, and the heat exchanger can cool the surface of the tapping groove and the center groove to a certain extent through the heat collecting pipe and the heat distribution pipe. The molten iron flows inside the tapping groove and the center groove, and the high temperature of the molten iron itself is transferred to the tapping groove and the center groove. The cooling of the heat exchanger can avoid the need to wait for a long time to cool down the tapping groove and the center groove when maintaining the tapping groove and the center groove. The rapid cooling of the heat exchanger can improve the production efficiency of the blast furnace to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the longitudinal cross-section of the central groove of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the hollow shell of the utility model after being flipped 90 degrees horizontally;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the limiting plate of the present invention after being longitudinally flipped 180 degrees.

[0022] Legend:

[0023] 1. Base; 2. Iron outlet groove; 3. Center groove; 4. Heat distribution pipe; 5. Heat collecting pipe; 6. Heat exchanger; 7. Connecting pipe; 8. Resonance cavity; 9. Hollow shell; 10. Push rod; 11. Rubber block; 12. Vertical motor; 13. Output shaft; 14. Disc; 15. Limit plate; 16. Compression spring; 17. Slide groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1

[0026] like Figures 1-4 As shown;

[0027] A high-efficiency iron-out main channel structure comprises a base 1.

[0028] In this embodiment: after investigation, the public announcement number: CN213835399U discloses a new type of blast furnace iron tapping main groove structure, in order to solve the existing problems existing in this prior art, as disclosed in the background technology above, "the existing iron tapping groove is in use, the molten iron flows inside the iron tapping groove, and the molten iron may have more impurities due to the calcination method. These impurities flow through the iron tapping groove together with the molten iron, but the flow of these impurities is passive, that is, the flow of the molten iron drives the impurities to flow, which causes some impurities to flow with the flow of the molten iron. The impurities in the subsequent molten iron are blocked and accumulated by the impurities that cannot be moved even if the subsequent molten iron keeps flowing. For a long time, the flow rate of the water inside the molten iron groove will be reduced, and the molten iron may even be blocked in the molten iron groove. If the flow of the molten iron is not discovered and shut down in time, it is easy to cause a production accident. In terms of combined use, this problem is obviously a problem that exists and is difficult to solve. Therefore, in order to solve this technical problem, a vertical motor 12 and a heat distribution pipe 4 are added to the present application document;

[0029] More specifically:

[0030] like Figures 1 to 4 As shown:

[0031] In combination with the above content: an efficient iron-out main groove structure includes a base 1, a connecting pipe 7 is welded in the middle of the left and right ends of the inner side of the base 1, an iron-out groove 2 and a center groove 3 are set at the end of the connecting pipe 7 away from the base 1, a resonance cavity 8 is opened below the inner side of the center groove 3, a hollow shell 9 is fixed by bolts in the middle of the inner side of the base 1, a vertical motor 12 is fixed by bolts at the rear of the hollow shell 9, an output shaft 13 is set at the output end of the vertical motor 12, the front and outer sides of the output shaft 13 pass through the inside of the disc 14 and are welded and fixed, the top of the disc 14 contacts the bottom of the limit plate 15, and a slide groove is opened at the bottom of the limit plate 15 17 is for the disc 14 to rotate, and the top middle of the limit plate 15 is welded with a push rod 10. The outer side of the bottom of the push rod 10 is sleeved on the inner side by a compression spring 16 and in contact with it. The end of the push rod 10 away from the limit plate 15 is adhered to the rubber block 11 by glue. The front and rear ends of the center groove 3 are fixedly connected to the top inner side of the iron outlet groove 2. The middle of the upper front side of the hollow shell 9 is slidably connected to the outer side of the push rod 10. The top of the rubber block 11 is in contact with the bottom end of the center groove 3. The top of the compression spring 16 is fixedly connected to the middle of the upper front side of the hollow shell 9, and the bottom of the compression spring 16 is fixedly connected to the middle of the top of the limit plate 15.

[0032] In this embodiment, the vibration generated by the push rod 10 striking the center groove 3 is amplified by the resonance chamber 8, thereby increasing the speed at which the molten iron flows over the inner side of the iron outlet groove 2 and the center groove 3 to a certain extent, and at the same time, preventing impurities in the molten iron from adhering to the inner side of the iron outlet groove 2 and slowly forming larger impurities to a certain extent.

[0033] In an optional embodiment: there are two hollow shells 9, and the hollow shells 9 are distributed on the left and right sides of the bottom of the central groove 3, and the length of the resonance cavity 8 below the central groove 3 is the same as the distance between the top rods 10 sliding on the top of the two hollow shells 9.

[0034] In this embodiment, the resonance cavity 8 can amplify the vibration of the push rod 10 hitting the central groove 3, thereby increasing the area of vibration transmission to a certain extent.

[0035] In an optional embodiment, the output shaft 13 is fixed at the middle position below the inner portion of the disc 14 , and the output shaft 13 drives the disc 14 to perform irregular motion, and the width of the slide groove 17 at the bottom of the limiting plate 15 matches the thickness of the disc 14 .

[0036] In this embodiment, the vertical motor 12 can drive the disc 14 to rotate irregularly, and cooperate with the limit plate 15 and the push rod 10 on its top to achieve the purpose of the push rod 10 cyclically knocking the bottom of the central groove 3 at the bottom of the central groove 3.

[0037] According to the above content, in order to quickly cool down when maintaining the iron outlet groove 2, the heat distribution pipe 4 is also welded inside the connecting pipe 7, the heat collection pipe 5 is welded to the end of the heat distribution pipe 4 away from the connecting pipe 7, and the heat exchanger 6 is fixed to the end of the heat collection pipe 5 away from the heat distribution pipe 4 through a flange. The left and right sides of the base 1 are fixedly connected to the outside of the heat distribution pipe 4, and the end of the heat distribution pipe 4 away from the heat collection pipe 5 is in contact with the left and right surfaces of the iron outlet groove 2 and the center groove 3.

[0038] In this embodiment, when the transportation of molten iron inside the iron outlet groove 2 and the central groove 3 is stopped, the heat exchanger 6 can cool the surfaces of the iron outlet groove 2 and the central groove 3 to a certain extent through the heat collecting pipe 5 and the heat distribution pipe 4.

[0039] In an optional embodiment: the number of heat distribution pipes 4 is several, and the distribution distance between the heat distribution pipes 4 matches the front-to-back length of the central groove 3, the distribution direction of the heat distribution pipes 4 is from left to right, and the distribution direction of the heat collecting pipes 5 is from front to back.

[0040] In this embodiment: a number of heat distribution pipes 4 directly in contact with the iron outlet groove 2 and the center groove 3 are connected to the heat collecting pipe 5. The heat distribution pipes 4 are distributed from left to right, and the top end on the right side is directly welded to the heat collecting pipe 5 distributed from front to back. The heat of the heat distribution pipes 4 can be concentrated at the heat collecting pipe 5 and the heat is transferred to the heat exchanger 6.

[0041] In an optional embodiment, interconnected holes are provided on the left and right sides of the base 1 and inside the connecting pipe 7 , and the diameter of the holes matches the diameter of the longitudinal section of the heat distribution pipe 4 .

[0042] In this embodiment, the heat distribution pipe 4 passes through the base 1 and the connecting pipe 7 and is welded to the base 1 and the connecting pipe 7 so that the heat distribution pipe 4 directly contacts the left and right sides of the iron outlet groove 2 and the center groove 3.

[0043] The working principle and use process of the present invention are as follows: during assembly, the end of the heat distribution pipe 4 away from the heat collecting pipe 5 is inserted into the holes on the left and right sides of the base 1, the heat distribution pipe 4 goes deep into the base 1, passes through the base 1 to connect the connecting pipe 7 of the iron outlet groove 2 and the center groove 3, and after the heat distribution pipe 4 is directly in contact with the inner sides of the iron outlet groove 2 and the center groove 3, use a welding gun to weld the outer surface of the base 1 to the surface of the heat distribution pipe 4, and then take out the heat collecting pipe 5, weld the outer top ends of several heat collecting pipes 5 to the heat collecting pipe 5 from the front to the back end, and finally use a flange to connect the heat collecting pipe 5 to the top end of the heat exchanger 6. When the iron outlet groove 2 and the center groove 3 need to be removed for maintenance, the heat exchanger 6 can be opened to quickly cool down the iron outlet groove 2 and the center groove 3. After installation, the molten iron can be allowed to flow in the iron outlet groove 2 and the center groove 3. When the machine is moving, the vertical motor 12 inside the middle hollow shell 9 on the inner side of the base 1 is turned on, and the vertical motor 12 drives the disc 14 to rotate irregularly through the output shaft 13 at the output end. The disc 14 slides in the slide groove 17 at the bottom of the limit plate 15 at its top, and the limit plate 15 drives the top push rod 10 and the rubber block 11 to cyclically knock on the middle position of the bottom of the center groove 3, and the compression spring 16 is deformed. At this time, the push rod 10 knocks on the bottom of the center groove 3 through the rubber block 11, and the vibration is expanded through the resonance cavity 8. The impurities in the molten iron will also be difficult to adhere to the inner side of the iron outlet groove 2 and the center groove 3 due to the vibration generated at the bottom of the iron outlet groove 2 and the center groove 3. This can avoid the impurities in the molten iron from adhering to the inner side of the iron outlet groove 2 and the slowly forming larger impurities to a certain extent, resulting in the subsequent molten iron being blocked by larger impurities and reducing the flow rate.

[0044] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-efficiency iron-out main channel structure, comprising a base (1), characterized in that: A connecting pipe (7) is fixedly connected to the middle of the left and right ends of the inner side of the base (1); the end of the connecting pipe (7) away from the base (1) is fixedly connected to the iron outlet groove (2) and the center groove (3); a resonance cavity (8) is provided inside and below the center groove (3); a hollow shell (9) is fixedly connected to the middle of the inner side of the base (1); a vertical motor (12) is fixedly connected to the rear of the hollow shell (9); an output end of the vertical motor (12) is fixedly connected to an output shaft (13); a disc (14) is fixedly connected to the front and outside of the output shaft (13); the top of the disc (14) is slidably connected to a limit plate (15); a sliding groove (17) is provided at the bottom of the limit plate (15); a push rod (10) is fixedly connected to the middle of the top of the limit plate (15); a compression spring (16) is slidably connected to the outside of the lower side of the push rod (10); and a rubber block (11) is fixedly connected to the end of the push rod (10) away from the limit plate (15).

2. The high-efficiency iron tapping main channel structure according to claim 1, characterized in that: The front and rear ends of the central groove (3) are fixedly connected to the top inner side of the iron outlet groove (2); the middle of the upper front side of the interior of the hollow shell (9) is slidably connected to the outer side of the push rod (10); the top of the rubber block (11) contacts the bottom end of the central groove (3); the top of the compression spring (16) is fixedly connected to the middle of the upper front side of the interior of the hollow shell (9); and the bottom of the compression spring (16) is fixedly connected to the middle of the top end of the limit plate (15).

3. The high-efficiency iron tapping main channel structure according to claim 1, characterized in that: There are two hollow shells (9), and the hollow shells (9) are distributed on the left and right sides of the bottom of the central groove (3). The length of the resonance cavity (8) below the central groove (3) is the same as the distance between the top rods (10) sliding on the top of the two hollow shells (9).

4. The high-efficiency iron tapping main channel structure according to claim 1, characterized in that: The output shaft (13) is fixed at a middle position below the inner portion of the disc (14), and the output shaft (13) drives the disc (14) to perform irregular motion. The width of the chute (17) at the bottom of the limiting plate (15) matches the thickness of the disc (14).

5. The high-efficiency iron tapping main channel structure according to claim 1, characterized in that: The connecting pipe (7) is fixedly connected to a heat distribution pipe (4) inside, and the end of the heat distribution pipe (4) away from the connecting pipe (7) is fixedly connected to a heat collecting pipe (5), and the end of the heat collecting pipe (5) away from the heat distribution pipe (4) is fixedly connected to a heat exchanger (6). The left and right sides of the inside of the base (1) are fixedly connected to the outside of the heat distribution pipe (4), and the end of the heat distribution pipe (4) away from the heat collecting pipe (5) contacts the left and right surfaces of the iron outlet groove (2) and the center groove (3).

6. The high-efficiency iron-out main channel structure according to claim 5, characterized in that: The number of the heat distribution pipes (4) is several, and the distance between the heat distribution pipes (4) matches the front-to-back length of the central groove (3). The distribution direction of the heat distribution pipes (4) is from left to right, and the distribution direction of the heat collection pipes (5) is from front to back.

7. The high-efficiency iron-out main channel structure according to claim 5, characterized in that: Interconnected holes are provided on the left and right sides of the base (1) and the inside of the connecting pipe (7), and the diameter of the holes matches the diameter of the longitudinal section of the heat distribution pipe (4).

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