Sealing device and slag iron runner of blast furnace casting house

Abstract

The utility model relates to the technical field of metallurgy, in particular to a sealing device and a slag iron runner of a blast furnace casting house. The sealing device provided by the embodiment of the utility model is used for the slag and iron runner of the blast furnace casting house. The sealing device comprises a first sealing assembly and a plurality of cover plates, the cover plates are sequentially arranged in the length direction of the iron slag runner, the two sides of each cover plate are connected to the runner edge on the same side, and a first gap is formed between every two adjacent cover plates. The first sealing assembly is arranged between the two adjacent cover plates and comprises a first sealing piece and a second sealing piece, and the first sealing piece is provided with a first lap joint groove. In every two adjacent cover plates, one end of the first sealing piece is connected to the end of one cover plate, the other end of the first sealing piece is connected to the end of the other cover plate so as to cover the first gap, and the second sealing piece is connected to the end of the other cover plate and arranged in the lap joint groove.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgy, in particular to a sealing device and a slag iron ditch in a blast furnace tapping site. Background Art

[0002] In the face of increasingly severe environmental protection, how to control the smoke and dust generated during the blast furnace iron-making process is the primary issue facing blast furnace production environmental protection. During normal production, slag and molten iron will flow into the granulation tower and iron ladle along the slag ditch and iron ditch on site respectively, and in order to prevent the smoke and dust generated during the flow of slag and iron from spreading to the iron-making site, multiple cover plates will be laid on the surface of the slag and iron ditch in sequence to achieve the purpose of sealing, thereby preventing smoke from spreading.

[0003] However, in the related art, due to the processing and manufacturing of the cover plates, there is still a gap of about 10 mm between the cover plates after they are connected, which is not conducive to the sealing and isolation of the flue gas. When the iron is tapped, the high-temperature flue gas carries dust and spreads along the gap to the iron-making platform, which will cause damage to the health of the workers and cause on-site environmental pollution. Utility Model Content

[0004] The present application provides a sealing device and a slag ditch in a blast furnace iron-making yard, which solves the technical problem in the related art that during iron-making, high-temperature flue gas carries dust along the gaps and diffuses to the iron-making yard platform, causing damage to the health of employees and causing on-site environmental pollution.

[0005] The embodiment of the present application provides a sealing device for a slag ditch in a blast furnace tapping site, comprising:

[0006] A plurality of cover plates are sequentially arranged along the length direction of the slag iron ditch, two sides of the cover plates are respectively connected to the ditch edge on the same side, and a first gap is formed between two adjacent cover plates;

[0007] A first sealing assembly is disposed between two adjacent cover plates, and comprises a first sealing member and a second sealing member, wherein the first sealing member is provided with a first overlapping groove;

[0008] Among them, in two adjacent cover plates, one end of the first seal is connected to the end of one of the cover plates, and the other end is connected to the end of the other cover plate to cover the first gap, and the second seal is connected to the end of the other cover plate, and the second seal is arranged in the overlap groove.

[0009] In some embodiments, one end of the first seal is disposed adjacent to the first gap.

[0010] In some embodiments, the device also includes a second sealing assembly, the cover plate is flush with the upper portion of the groove edge on the same side, and a second gap is provided between the cover plate and the groove edge on the same side, the groove edge is provided with a first mounting groove, the first mounting groove is arranged below the end portion of the cover plate, and at least a portion of the second sealing assembly is arranged in the first mounting groove to cover the second gap.

[0011] In some embodiments, the second sealing assembly includes a third seal and a fourth seal, the third seal is provided with a second lap groove, the third seal is disposed in the first mounting groove and fixedly connected to the groove edge to cover the second gap, the fourth seal is disposed at an end of the cover plate, and the fourth seal is disposed in the second lap groove.

[0012] In some embodiments, the second sealing component further includes an embedded component, the embedded component is fixedly laid on the groove edge, and the third sealing component is fixedly connected to the embedded component.

[0013] In some embodiments, the embedded part includes a first connecting section, a second connecting section and a third connecting section that are connected to each other, the first mounting groove has a first groove wall and a second groove wall that are set at an angle, the second groove wall is set relative to the cover plate, the first connecting section is fixedly laid on the upper surface of the groove edge, the second connecting section is fixedly laid on the first groove wall, the third connecting section is fixedly laid on the second groove wall, and the third sealing component is fixedly connected to the third connecting section.

[0014] In some embodiments, the second sealing assembly further includes three anchor bars, which are respectively fixed to the first connecting segment, the second connecting segment, and the third connecting segment, and the three anchor bars are arranged inside the groove edge.

[0015] In some embodiments, the groove edge is also provided with a second mounting groove, the second mounting groove is arranged between the first mounting groove and the slag groove, and the second mounting groove is arranged below the first mounting groove; the sealing device also includes a cover plate frame, one end of the cover plate frame is connected to the cover plate, and the other end is supported and arranged on the groove wall of the second mounting groove.

[0016] In some embodiments, the first seal, the second seal, the third seal, and the fourth seal are all channel steels.

[0017] On the other hand, an embodiment of the present application further provides a slag ditch in a blast furnace tapping house, comprising the sealing device described above.

[0018] The beneficial effects of this application are as follows:

[0019] The present application provides a sealing device and a slag ditch for a blast furnace iron-making yard. In the two adjacent cover plates, one end of a first seal is connected to the end of one of the cover plates, and the other end is connected to the end of the other cover plate to cover the first gap, thereby sealing the first gap. This can improve the diffusion of smoke through the first gap to a certain extent, thereby ensuring the on-site environment; and, a second seal is connected to the end of the other cover plate, and the second seal is arranged in a lap groove, thereby strengthening the connection strength between the two adjacent cover plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model.

[0021] Figure 1 A front view of the slag ditch of the blast furnace iron-making yard provided in an embodiment of the present application.

[0022] Figure 2 for Figure 1 Partial side view of .

[0023] Description of reference numerals:

[0024] 1- slag groove of blast furnace iron-making yard, 2- groove edge, 21- first installation groove, 22- second installation groove, 100- first sealing assembly, 110- first sealing member, 111- first overlapping groove, 120- second sealing member, 200- cover plate, 210- cover plate frame, 220- first gap, 230- second gap, 300- second sealing assembly, 310- third sealing member, 311- second overlapping groove, 320- fourth sealing member, 330- embedded member, 331- first connecting section, 332- second connecting section, 333- third connecting section, 340- anchor bar. DETAILED DESCRIPTION

[0025] 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 of 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.

[0026] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0029] Combination Figure 1 and Figure 2 , a sealing device provided in an embodiment of the present application is used for a slag ditch 1 of a blast furnace iron-making field. The sealing device includes a first sealing assembly 100 and a plurality of cover plates 200, the plurality of cover plates 200 are arranged in sequence along the length direction of the slag ditch, the two sides of the cover plates 200 are respectively connected to the ditch edge 2 on the same side, and a first gap 220 is provided between two adjacent cover plates 200. The first sealing assembly 100 is arranged between two adjacent cover plates 200, and includes a first sealing member 110 and a second sealing member 120, and the first sealing member 110 is provided with a first lap groove 111. Among them, in two adjacent cover plates 200, one end of the first sealing member 110 is connected to the end of one of the cover plates 200, and the other end is connected to the end of the other cover plate 200 to cover the first gap 220, the second sealing member 120 is connected to the end of the other cover plate 200, and the second sealing member 120 is arranged in the lap groove.

[0030] The slag-iron ditch includes a slag ditch and an iron ditch. When the blast furnace is in production, the slag produced flows into the slag ditch, and the molten iron flows into the iron ditch. The sealing device provided in the embodiment of the present application is applicable to both the slag ditch and the iron ditch. The ditch edge 2 is the foundation part on both sides of the slag-iron ditch. Both sides of the cover plate 200 are respectively connected to the ditch edge 2 on the same side, so that the slag-iron ditch can be covered to seal the flue gas in the slag-iron ditch.

[0031] The cover plate 200 can be made of a 3260mm×2520mm steel plate. In two adjacent cover plates 200, the first seal 110 is connected to the opposite end of the two cover plates 200, so that the first seal 110 can cover the first gap 220, thereby improving the diffusion of smoke through the first gap 220 to a certain extent and ensuring the on-site environment.

[0032] The second seal 120 is arranged in the overlap groove of the first seal 110, so that a double connection is formed between the two adjacent cover plates 200, and the connection strength between the two adjacent cover plates 200 is enhanced. In addition, the cooperation between the second seal 120 and the first seal 110 can also be used for positioning between the two adjacent cover plates 200, that is, the second seal 120 of one cover plate 200 is buckled into the overlap groove of the first seal 110 of the other cover plate 200, that is, the positioning between the two adjacent cover plates 200 is achieved, and then the other end of the first seal 110 is connected to the corresponding cover plate 200 to cover the first gap 220, thereby improving the convenience of the cover plates 200 docking.

[0033] In some embodiments, in practice, the first gap 220 may change due to factors such as thermal expansion and contraction. In order to ensure the sealing effect even when the first gap 220 becomes larger, one end of the first seal 110 is arranged close to the first gap 220, that is, one end of the first seal 110 is arranged at the outermost edge of one of the cover plates 200. In this way, the vertical projection of the first seal 110 can be divided into two parts, one part is used to cover the first gap 220, and the other part is arranged on the other cover plate 200, and most of the projection is arranged on the other cover plate 200, so that when the first gap 220 becomes larger, the first gap 220 is still within the vertical projection of the first seal 110 to ensure the sealing effect.

[0034] In some embodiments, in the related art, the cover plate 200 is flush with the upper surface of the groove edge 2 on the same side, and there is also a second gap 230 between the cover plate 200 and the groove edge 2 on the same side. The smoke in the slag groove will also emerge from the second gap 230. Therefore, in order to seal the second gap 230, the sealing device also includes a second sealing assembly 300. The groove edge 2 is provided with a first installation groove 21, and the first installation groove 21 is located below the end of the cover plate 200. At least part of the second sealing assembly 300 is arranged in the first installation groove 21 to cover the second gap 230.

[0035] It is obvious that the first mounting groove 21 is located on the upper surface of the groove edge 2, close to the slag groove, and the first mounting groove 21 and the upper surface of the groove edge 2 form a step structure. The second sealing assembly 300 is arranged in the first mounting groove 21, which can ensure that the cover plate 200 remains flush with the upper surface of the groove edge 2 on the same side, thereby ensuring the sealing effect of the cover plate 200.

[0036] In some embodiments, the second sealing assembly 300 includes a third seal 310 and a fourth seal 320, the third seal 310 is provided with a second lap groove 311, the third seal 310 is disposed in the first mounting groove 21, and is fixedly connected to the groove edge 2 to cover the second gap 230, the fourth seal 320 is disposed at the end of the cover plate 200, and the fourth seal 320 is disposed in the second lap groove 311.

[0037] The cooperation between the third seal 310 and the fourth seal 320 can be used for positioning between the cover plate 200 and the groove edge 2, that is, the third seal 310 is first set in the first installation groove 21, and then when the cover plate 200 is hoisted by the overhead crane, the fourth seal 320 at the end of the cover plate 200 is buckled into the second overlapping groove 311 on the same side, thereby realizing the positioning between the cover plate 200 and the groove edge 2, which provides convenience for the installation of the cover plate 200.

[0038] Of course, it is obvious that the first seal 110 and the second seal 120 are arranged at the end of the cover plate 200 along the length direction of the slag groove, and the third seal 310 is arranged at the end of the cover plate 200 along the width direction of the slag groove. They do not interfere with each other.

[0039] In some embodiments, to protect the cast house platform, the second sealing assembly 300 further includes an embedded part 330, the embedded part 330 is fixedly laid on the groove edge 2, and the third sealing part 310 is fixedly connected to the embedded part 330. That is, because the embedded part 330 is fixedly laid on the groove edge 2, under the protection of the embedded part 330, the groove edge 2 can be protected to a certain extent from being damaged, resulting in smoke exposure.

[0040] Specifically, the embedded part 330 includes a first connecting section 331, a second connecting section 332 and a third connecting section 333 that are connected to each other. The first mounting groove 21 has a first groove wall and a second groove wall that are set at an angle. The second groove wall is set relative to the cover plate 200. The first connecting section 331 is fixedly laid on the upper surface of the groove edge 2, the second connecting section 332 is fixedly laid on the first groove wall, the third connecting section 333 is fixedly laid on the second groove wall, and the third sealing component 310 is fixedly connected to the third connecting section 333.

[0041] Since the third sealing member 310 is fixedly connected to the third connecting section 333 , when the embedded member 330 is fixedly laid on the ditch edge 2 , the third sealing member 310 is also installed at the same time, thereby improving the installation convenience of the third sealing member 310 .

[0042] In some embodiments, the second sealing assembly 300 further includes three anchor bars 340, which are respectively fixed to the first connecting section 331, the second connecting section 332 and the third connecting section 333, and the three anchor bars 340 are arranged inside the groove edge 2. That is, the embedded part 330 is fixed to the groove edge 2 through the anchor bars 340.

[0043] In some embodiments, the groove edge 2 is also provided with a second mounting groove 22, the second mounting groove 22 is arranged between the first mounting groove 21 and the slag groove, and the second mounting groove 22 is arranged below the first mounting groove 21; the sealing device also includes a cover plate frame 210, one end of the cover plate frame 210 is connected to the cover plate 200, and the other end is supported and arranged on the groove wall of the second mounting groove 22, so that the cover plate 200 is supported and arranged on the groove edge 2, thereby realizing the installation of the cover plate 200 on the groove edge 2.

[0044] The cover plate frame 210 can be formed by assembling 15 sections of steel and welded to the cover plate 200, and refractory material is poured on the cover plate frame 210 and baked to reach working strength. A step structure is also formed between the first installation groove 21 and the second installation groove 22. The cover plate frame 210 is supported and arranged in the second installation groove 22, which can ensure that the cover plate 200 is flush with the upper surface of the groove edge 2 on the same side, thereby ensuring the sealing effect of the cover plate 200.

[0045] In some embodiments, the first seal 110, the second seal 120, the third seal 310 and the fourth seal 320 are all channel steels. Channel steels are components with large quantities on site and low costs, and since the channel steels themselves have grooves, the grooves of the first seal 110 and the third seal 310 are respectively configured as the first overlapping groove 111 and the second overlapping groove 311, without the need for additional processing, saving manpower and cost.

[0046] Of course, the first sealing member 110 , the second sealing member 120 , the third sealing member 310 , and the fourth sealing member 320 may be connected to each component by welding to ensure the connection strength.

[0047] The present application provides a sealing device and a slag ditch 1 for a blast furnace iron-making yard. In the two adjacent cover plates 200, one end of the first sealing member 110 is connected to the end of one of the cover plates 200, and the other end is connected to the end of the other cover plate 200 to cover the first gap 220, thereby sealing the first gap 220. This can improve the diffusion of smoke through the first gap 220 to a certain extent, thereby ensuring the on-site environment; and, the second sealing member 120 is connected to the end of the other cover plate 200, and the second sealing member 120 is arranged in the overlap groove, thereby strengthening the connection strength between the two adjacent cover plates 200.

[0048] Based on the same inventive concept, the embodiment of the present application also provides a blast furnace iron casting slag ditch 1, including the sealing device described above. The beneficial effects of the blast furnace iron casting slag ditch 1 provided in the embodiment of the present application are consistent with the beneficial effects of the sealing device described above, which will not be repeated here.

[0049] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0050] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A sealing device for a slag ditch in a blast furnace tapping site, characterized in that: include: A plurality of cover plates are sequentially arranged along the length direction of the slag iron ditch, two sides of the cover plates are respectively connected to the ditch edge on the same side, and a first gap is formed between two adjacent cover plates; A first sealing assembly is disposed between two adjacent cover plates, and comprises a first sealing member and a second sealing member, wherein the first sealing member is provided with a first overlapping groove; Among them, in two adjacent cover plates, one end of the first seal is connected to the end of one of the cover plates, and the other end is connected to the end of the other cover plate to cover the first gap, and the second seal is connected to the end of the other cover plate, and the second seal is arranged in the overlap groove.

2. The sealing device according to claim 1, characterized in that: One end of the first sealing member is disposed adjacent to the first gap.

3. The sealing device according to claim 1, characterized in that: The device also includes a second sealing assembly, the cover plate is flush with the upper portion of the groove edge on the same side, and a second gap is provided between the cover plate and the groove edge on the same side, the groove edge is provided with a first mounting groove, the first mounting groove is arranged below the end portion of the cover plate, and at least a portion of the second sealing assembly is arranged in the first mounting groove to cover the second gap.

4. The sealing device according to claim 3, characterized in that: The second sealing assembly includes a third seal and a fourth seal. The third seal is provided with a second overlapping groove. The third seal is arranged in the first mounting groove and is fixedly connected to the groove edge to cover the second gap. The fourth seal is arranged at the end of the cover plate and is arranged in the second overlapping groove.

5. The sealing device according to claim 4, characterized in that: The second sealing component also includes an embedded component, which is fixedly laid on the groove edge, and the third sealing component is fixedly connected to the embedded component.

6. The sealing device according to claim 5, characterized in that: The embedded part includes a first connecting section, a second connecting section and a third connecting section that are connected to each other. The first mounting groove has a first groove wall and a second groove wall that are arranged at an angle. The second groove wall is arranged relative to the cover plate. The first connecting section is fixedly laid on the upper surface of the groove edge, the second connecting section is fixedly laid on the first groove wall, the third connecting section is fixedly laid on the second groove wall, and the third sealing component is fixedly connected to the third connecting section.

7. The sealing device according to claim 6, characterized in that: The second sealing assembly also includes three anchor bars, which are respectively fixed to the first connecting section, the second connecting section and the third connecting section, and are arranged inside the groove edge.

8. The sealing device according to claim 4, characterized in that: The groove edge is also provided with a second mounting groove, which is arranged between the first mounting groove and the slag groove, and the second mounting groove is arranged below the first mounting groove; the sealing device also includes a cover plate frame, one end of the cover plate frame is connected to the cover plate, and the other end is supported and arranged on the groove wall of the second mounting groove.

9. The sealing device according to any one of claims 4 to 8, characterized in that: The first sealing member, the second sealing member, the third sealing member and the fourth sealing member are all channel steels.

10. A slag ditch in a blast furnace tapping site, characterized in that: Comprising a sealing device as claimed in any one of claims 1 to 9.

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