Prefabricated skimmer for blast furnace tapping channel

Abstract

The utility model provides a blast furnace tapping channel prefabricated skimmer, which comprises a skimmer and a cross beam, the cross beam is fixed on the middle lower part of the skimmer, the cross beam comprises a cross beam main body, a fixing piece and a protective plate, a square groove on the cross beam main body corresponds to a square bulge on the fixing piece, and the protective plate is fixed on the cross beam main body. The square groove and the square protrusion are combined and fixed, the beam body and the fixing piece are fixed together, the fixing groove corresponds to the upper portion of the fixing piece, the arc groove corresponds to the arc protrusion, and the protection plate and the fixing piece are fixed together. And meanwhile, the protection plate and the fixing piece are secondarily fixed. The cross beam is simple in structure, the cross beam is modularly designed, the cross beam is divided into three parts, the cross beam can be repaired by replacing the corresponding part when the damaged part is damaged, later maintenance of the cross beam is facilitated, and cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a skimmer technical field especially relates to a blast furnace iron notch prefabricated skimmer. BACKGROUND

[0002] The blast furnace iron notch will flow out blast furnace slag and molten iron simultaneously, and needs to carry out slag iron separation. The skimmer is located at the tail of the main ditch of the iron notch, and is a component playing a role of slag iron separation during the blast furnace iron tapping. Since the blast furnace slag density is greater than that of the molten iron, the blast furnace slag floats on the molten iron. When passing through the eye, the blast furnace slag floating on the top is blocked by the skimmer and flows away from the slag ditch, and the molten iron enters the small well from the eye, gradually rises in the small well, flows into the branch ditch, and finally flows into the transported molten iron ladle, so as to realize the slag iron separation function.

[0003] However, the existing blast furnace iron skimmer is usually integrally cast. During use, the skimmer beam is directly subjected to the scouring of slag and iron, and is easily eroded and oxidized. The lower body is not easy to be eroded and oxidized. If the skimmer beam is damaged, the entire skimmer needs to be replaced during maintenance, which causes a certain degree of resource waste. SUMMARY

[0004] The utility model discloses a blast furnace iron ditch prefabricated skimmer which solves the problems in the prior art.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: a blast furnace iron notch prefabricated skimmer, including skimmer, crossbeam, the crossbeam is fixed in the lower part of skimmer, the crossbeam includes crossbeam main part, fixed part, guard plate, the crossbeam main part includes first stud, second stud, fixed plate, square recess, the fixed plate is arranged in the left and right sides of crossbeam main part, square recess is arranged on the upper surface of crossbeam main part, first stud is arranged in the upper part of the front of crossbeam main part, second stud is arranged on the fixed plate, the fixed part includes first screw hole, second screw hole, arc recess, square boss, the first screw hole is equipped on the upper part of the front of fixed part, the second screw hole is equipped on the lower part of the front of fixed part, the arc recess is equipped on the left and right upper parts of fixed part, and the square boss is equipped on the lower end of fixed part, the guard plate includes third stud, limit plate, arc boss, fixed groove, the fixed groove is arranged on the front of guard plate, the limit plate is equipped on the upper part of fixed groove, the third stud is equipped on the top end of limit plate, and the arc boss is equipped on the left and right sides of fixed groove, the square recess on the crossbeam main part corresponds with the square boss on the fixed part, the square recess and the square boss are fixed through the first stud and the second screw hole, the crossbeam main part and the fixed part are fixed together through the square recess and the square boss, the fixed groove corresponds with the upper part of fixed part, the arc recess corresponds with the arc boss, the guard plate and the fixed part are fixed together through the arc recess and the arc boss, and meanwhile the guard plate (201) and the fixed part are secondarily fixed through the second screw hole and the third stud.

[0006] Preferably, the skimmer includes a connecting plate, a blast furnace tapping hole, a channel bottom, a tapping hole, and a skimming hole. The skimmer has a connecting plate at one end, a blast furnace tapping hole on the connecting plate, a channel bottom at the bottom of the skimmer, skimming holes on the left and right sides of the skimmer, and a tapping hole at the other end of the skimmer.

[0007] Preferably, the crossbeam main part, the fixed part, and the guard plate are provided with a fireproof coating.

[0008] Preferably, when the crossbeam main part and the fixed part are connected together, the center of the second stud coincides with the center of the second screw hole. When the fixed part and the guard plate are fixedly connected together, the center of the first screw hole coincides with the center of the third stud.

[0009] Preferably, the fixed plate is fixed to the left and right sides of the skimmer through the second stud.

[0010] Compared with the prior art, the utility model discloses the beneficial effect is: the utility model simple structure, the skimmer crossbeam is designed into the modular structure, improved skimmer crossbeam's heat resistance and replaceability, skimmer crossbeam certain part is damaged, does not need to replace the crossbeam all, only needs to replace the damaged part, reduced skimmer crossbeam's cost in the use process. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the structure schematic diagram of the prefabricated skimmer of blast furnace iron notch of the utility model;

[0012] Figure 2 It is the cross section structure schematic diagram of the prefabricated skimmer of blast furnace iron notch of the utility model;

[0013] Figure 3 It is the combined structure schematic diagram of the prefabricated skimmer crossbeam main part and fixed part of blast furnace iron notch of the utility model;

[0014] Figure 4 It is the structure schematic diagram of the prefabricated skimmer crossbeam main part of blast furnace iron notch of the utility model;

[0015] Figure 5 It is the structure schematic diagram of the fixed part of the prefabricated skimmer of blast furnace iron notch of the utility model;

[0016] Figure 6 It is the structure schematic diagram of the prefabricated skimmer guard plate of blast furnace iron notch of the utility model;

[0017] Label explanation: 1-skimmer;101-connection plate;102-blast furnace iron notch;103-gutter bottom;104-skim off the mouth;105-iron notch;2-crossbeam;201-guard plate;2011-third stud;2012-limiting plate;2013-round convex;2014-fixed groove;202-crossbeam main part;2021-second stud;2022-fixed plate;2023-square recess;2024-first stud;203-fixed part;2031-first screw hole;2032-second screw hole, 2033-round arc recess;2034-square convex. DETAILED DESCRIPTION

[0018] In order to make the purpose, the structure, the characteristics and the function of the utility model further understand, detailedly explain as follows with the example.

[0019] Please refer to Figure 2 The prefabricated skimmer of blast furnace iron notch of the utility model embodiment, including skimmer 1, crossbeam 2, the crossbeam 2 is fixed in the lower part of the skimmer 1;

[0020] As Figure 3 And Figure 6As shown, the crossbeam 2 includes a crossbeam body 202, a fastener 203, and a protective plate 201; as Figure 4 As shown, the crossbeam body 202 includes a first stud 2024, a second stud 2021, a fixing plate 2022, and a square groove 2023. The fixing plate 2022 is disposed on the left and right sides of the crossbeam body 202, the square groove 2023 is disposed on the upper surface of the crossbeam body 202, the first stud 2024 is disposed on the upper part of the front side of the crossbeam body 202, and the second stud 2021 is disposed on the fixing plate 2022.

[0021] like Figure 5 As shown, the fixing member 203 includes a first screw hole 2031, a second screw hole 2032, an arc groove 2033, and a square protrusion 2034. The fixing member 203 has a first screw hole 2031 on the upper part of its front side, a second screw hole 2032 on the lower part of its front side, an arc groove 2033 on the upper left and right sides, and a square protrusion 2034 at the lower end. The protective plate 201 includes a third stud 2011, a limiting plate 2012, an arc protrusion 2013, and a fixing groove 2014. The fixing groove 2014 is located on the front side of the protective plate 201. The limiting plate 2012 is located on the upper part of the fixing groove 2014. The third stud 2011 is located at the top of the limiting plate 2012. The arc protrusions 2013 are located on the left and right sides of the fixing groove 2014.

[0022] The square recess 2023 on the beam body 202 corresponds to the square protrusion 2034 on the fixing part 203, the square recess 2023 and the square protrusion 2034 are fixed by the first stud 2024 and the second threaded hole 2032, the beam body 202 and the fixing part 203 are fixed together through the square recess 2023 and the square protrusion 2034, the fixed groove 2014 corresponds to the upper part of the fixing part 203, the arc recess 2033 corresponds to the arc protrusion 2013, the protection plate 201 and the fixing part 203 are fixed together through the arc recess 2033 and the arc protrusion 2013, and the protection plate 201 and the fixing part 203 are secondarily fixed through the second threaded hole 2032 and the third stud 2011. Further, the skimmer beam is divided into a beam body 202, a fixing part 203 and a protection plate 201, in the working process, the skimmer beam is easy to be eroded and oxidized because it faces molten iron and blast furnace slag, if the beam body 202 is damaged, the first stud 2024 is unscrewed, the beam body 202 and the fixing part 203 are separated, the second stud 2021 is unscrewed, the beam body 202 is separated from the skimmer, at this time, a new beam body 202 can be replaced; if the fixing part 203 is damaged, the second stud 2021 and the first stud 2024 are unscrewed, the fixing part 203 is separated from the beam body 202 and the protection plate 201, and a new fixing part 203 can be replaced; if the protection plate 201 is damaged, the second stud 2021 is unscrewed, the protection plate 201 is separated from the beam, and a new protection plate 201 can be replaced. At the same time, the skimmer beam is modularized, which can be repaired simply and quickly and reduces the maintenance cost.

[0023] Preferably, the skimmer 1 comprises a connecting plate 101, a blast furnace tap hole 102, a groove bottom 103, a tap hole 105 and a skimming hole 104, the skimmer 1 is provided with the connecting plate 101 at one end, the connecting plate 101 is provided with the blast furnace tap hole 102, the bottom of the skimmer 1 is provided with the groove bottom 103, the left and right sides of the skimmer 1 are provided with the skimming hole 104, and the other end of the skimmer 1 is provided with the tap hole 105. Such a design forms a molten iron channel between the skimmer, the groove bottom and the beam, the molten iron passes through the molten iron channel to the tap hole, the skimming hole is arranged on the left and right sides of the beam, and the blast furnace slag is discharged through the skimming hole.

[0024] Preferably, the beam body 202, the fixing part 203 and the protection plate 201 are provided with a fireproof coating. Such a design increases the fire resistance of the beam, prolongs the service life of the beam, and prevents the mutual adhesion between the beam body 202, the fixing part 203 and the protection plate 201.

[0025] Preferably, the second stud 2021 coincides with the center of the second screw hole 2032 when the beam body 202 is connected with the fixing member 203; the first screw hole 2031 coincides with the center of the third stud 2011 when the fixing member 203 is fixedly connected with the protection plate 201.

[0026] Preferably, the fixing plate 2022 is fixed on the left and right sides of the skimmer 1 through the second stud 2021.

[0027] The above only is the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A prefabricated slag skimmer for a blast furnace trough, comprising a skimmer (1), a crosspiece (2), characterised in that: The crossbeam (2) is fixed in the middle lower part of the skimmer (1), the crossbeam (2) includes crossbeam main body (202), fixing part (203), guard plate (201); The crossbeam main body (202) includes first stud (2024), second stud (2021), fixed plate (2022), square groove (2023), the fixed plate (2022) is arranged on the left and right sides of the crossbeam main body (202), the square groove (2023) is arranged on the upper surface of the crossbeam main body (202), the first stud (2024) is arranged on the upper part of the front of the crossbeam main body (202), and the second stud (2021) is arranged on the fixed plate (2022); The fixing part (203) includes first screw hole (2031), second screw hole (2032), arc groove (2033), square protrusion (2034), the first screw hole (2031) is arranged on the upper part of the front of the fixing part (203), the second screw hole (2032) is arranged on the lower part of the front of the fixing part (203), the arc groove (2033) is arranged on the upper part of the left and right of the fixing part (203), and the square protrusion (2034) is arranged on the lower end of the fixing part (203); The guard plate (201) includes third stud (2011), limiting plate (2012), arc protrusion (2013), fixed groove (2014), the fixed groove (2014) is arranged on the front of the guard plate (201), the limiting plate (2012) is arranged on the upper part of the fixed groove (2014), the third stud (2011) is arranged on the top end of the limiting plate (2012), and the arc protrusion (2013) is arranged on the left and right sides of the fixed groove (2014); The square groove (2023) on the crossbeam main body (202) corresponds to the square protrusion (2034) on the fixing part (203), the square groove (2023) and the square protrusion (2034) are fixed by the first stud (2024) and the second screw hole (2032), the crossbeam main body (202) and the fixing part (203) are fixed together through the square groove (2023) and the square protrusion (2034), the fixed groove (2014) corresponds to the upper part of the fixing part (203), the arc groove (2033) corresponds to the arc protrusion (2013), the guard plate (201) and the fixing part (203) are fixed together through the arc groove (2033) and the arc protrusion (2013), and the guard plate (201) and the fixing part (203) are fixed again through the second screw hole (2032) and the third stud (2011).

2. The preformed skimmer for a blast furnace trough according to claim 1, characterized in that: The skimmer (1) comprises a connecting plate (101), a blast furnace taphole (102), a channel bottom (103), a taphole (105), and a skimming hole (104). The skimmer (1) is provided with the connecting plate (101) at one end, the connecting plate (101) is provided with the blast furnace taphole (102), the bottom of the skimmer (1) is provided with the channel bottom (103), the left and right sides of the skimmer (1) are provided with the skimming hole (104), and the other end of the skimmer (1) is provided with the taphole (105).

3. The preformed skimmer for a blast furnace trough according to claim 1, characterized in that: The cross beam body (202), the fixing part (203), and the protection plate (201) are provided with a fireproof coating.

4. The preformed skimmer for a blast furnace trough according to claim 1, characterized in that: When the cross beam body (202) and the fixing part (203) are connected together, the center positions of the second threaded hole (2021) and the second threaded hole (2032) coincide; when the fixing part (203) and the protection plate (201) are fixedly connected together, the center positions of the first threaded hole (2031) and the third threaded hole (2011) coincide.

5. The preformed skimmer for a blast furnace trough according to claim 1, characterized in that: The fixing plate (2022) is fixed to the left and right sides of the skimmer (1) through the second threaded hole (2021).

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