CN219648650U - Connecting device for casting dissimilar steel in crystallizer and crystallizer - Google Patents
Connecting device for casting dissimilar steel in crystallizer and crystallizer Download PDFInfo
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- CN219648650U CN219648650U CN202320328840.5U CN202320328840U CN219648650U CN 219648650 U CN219648650 U CN 219648650U CN 202320328840 U CN202320328840 U CN 202320328840U CN 219648650 U CN219648650 U CN 219648650U
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- crystallizer
- connecting device
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- continuous casting
- steel
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 79
- 239000010959 steel Substances 0.000 title claims abstract description 79
- 238000005266 casting Methods 0.000 title claims abstract description 45
- 238000003780 insertion Methods 0.000 claims abstract description 42
- 230000037431 insertion Effects 0.000 claims abstract description 42
- 238000009749 continuous casting Methods 0.000 claims abstract description 28
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
- 238000007664 blowing Methods 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims 2
- 230000002787 reinforcement Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000002893 slag Substances 0.000 description 10
- 239000007788 liquid Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Continuous Casting (AREA)
Abstract
The utility model relates to a connecting device for dissimilar steel continuous casting in a crystallizer and the crystallizer, wherein the connecting device comprises: an insertion portion and a clamping portion; one end of the insertion part is used for being inserted into the pouring molten steel first, and the other end of the insertion part is used for being inserted into the pouring molten steel later; the clamping part is arranged in the middle of the insertion part and is used for enabling the connecting device to be clamped in the crystallizer. The connecting device is simple in structure and low in production cost, can realize dissimilar steel continuous casting in the casting machine, shortens replacement time, improves working efficiency of the casting machine, and reduces labor intensity and safety risk of workers.
Description
Technical Field
The utility model relates to the technical field of metallurgical continuous casting, in particular to a connecting device for continuous casting of dissimilar steel in a crystallizer and the crystallizer.
Background
Along with the transformation and upgrading of products, the requirements on quality are higher and higher, the types of cast steel are more and more frequent, most of the steel types are mainly smelted in small tonnage, and due to the steel water composition problem, the same-medium-package different-type steel mixed casting cannot be performed, and the middle package needs to be replaced and then cast, but the replacement time is about 40 minutes to 50 minutes each time, so that the production capacity of a casting machine is seriously affected.
In the current continuous casting process of dissimilar steel, the situation that a refractory small block falls off to block a water gap often occurs, at this moment, the liquid level of a crystallizer can be instantaneously reduced to below 20% from 80% of the normal casting liquid level, then the casting liquid level can be directly raised to 100% after the refractory small block is washed away by molten steel, and meanwhile, the pulling speed can be changed along with the change of the liquid level. When the abnormal condition occurs, the staff can immediately adjust the automatic state of the equipment to a manual control state to operate the liquid level of the crystallizer, but the abnormal condition is a condition of instantaneous occurrence, namely the situation that the liquid level of the crystallizer is intermittently raised and lowered in a short time, so that the surface of the crystallizer can form very thick slag strips, and under the condition of high pulling speed, if the slag is not fished in time, the slag strips are involved in the surface of the casting blank along with the movement of the casting blank, and when the casting blank is discharged from a lower port of the crystallizer, the slag strips are flushed by strong pressure of secondary cooling water, so that the casting blank is broken and crusted to cause steel leakage.
Therefore, the probability of casting blank steel leakage in the current dissimilar steel continuous casting process is high.
Disclosure of Invention
The utility model provides a connecting device for continuous casting of dissimilar steel in a crystallizer and the crystallizer, which aim to solve the problem that the probability of casting blank steel leakage is large in the current continuous casting process of dissimilar steel.
The utility model provides a connecting device for casting dissimilar steel in a crystallizer, which comprises: one end of the insertion part is used for being inserted into the pouring molten steel first, and the other end of the insertion part is used for being inserted into the pouring molten steel later; the clamping part is arranged in the middle of the insertion part and is used for enabling the connecting device to be clamped in the crystallizer.
In some embodiments, the insert includes: the number of the inserting rods is two, and the two inserting rods are arranged in parallel and vertically.
In some embodiments, the clamping portion includes: the two stop rods are respectively fixedly connected with the middle parts of the two insertion rods at two ends of the two stop rods, and the two stop rods are arranged in parallel.
In some embodiments, two ends of the two stop rods extend to the outer sides of the two insertion rods along the length direction of the stop rods respectively, and are used for being clamped with the inside of the crystallizer.
In some embodiments, hanging holes are respectively formed at the upper ends of the two insertion rods, and the two hanging holes are symmetrically arranged; two insertion rods can be hung at the opening at the upper end of the crystallizer through the hanging holes.
In some embodiments, the two hanging holes are respectively connected with oxygen blowing pipe hooks for hanging the two inserting rods.
In some embodiments, a plurality of cold steel bars are arranged on the outer sides of the two insertion rods, and the plurality of cold steel bars are uniformly distributed along the length direction of the stop rod.
In some embodiments, the diameter of the lance hook is 6 mm.
In some embodiments, the cold bar has a diameter of 10 millimeters.
A crystallizer based on the same concept, comprising: a crystallizer body; the casting blank shell is circumferentially arranged on the inner side wall of the crystallizer body; and the connecting device provided by any of the specific embodiments above is clamped at the top end of the casting blank shell.
The utility model has the beneficial effects that:
the connecting device for continuous casting of dissimilar steel in the crystallizer has the advantages of simple structure and lower cost, can realize continuous casting of dissimilar steel in a casting machine, shortens replacement time, improves the working efficiency of the casting machine, and reduces the labor intensity and the safety risk of workers.
The crystallizer can realize continuous casting of dissimilar steel in a casting machine, shortens replacement time, improves working efficiency of the casting machine, and reduces labor intensity and safety risk of workers.
Drawings
FIG. 1 is a schematic view of some embodiments of a connecting device for continuous casting of dissimilar steels in a mold according to the present utility model;
FIG. 2 is a schematic view of some embodiments of another view of a connecting device for dissimilar steel casting in a mold as shown in FIG. 1;
fig. 3 is a schematic structural view of some embodiments of the connection device for dissimilar steel continuous casting in a mold according to the present utility model.
In the drawings, 100, insert rod; 110. a hanging hole; 120. an oxygen lance hook; 200. a stop lever; 300. a crystallizer body; 310. and casting blank shell.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Examples of the embodiments are illustrated in the accompanying drawings, wherein like or similar symbols indicate like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "top," "bottom," "inner," "outer," "axis," "circumferential," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience in describing the present utility model or simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," "engaged," "hinged," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The dissimilar steel continuous casting refers to continuous casting of different types of steel.
In the traditional heterogeneous steel continuous casting process, when the liquid level of the crystallizer is intermittently raised and lowered in the moment, thicker slag strips are formed on the surface of the crystallizer, and under the condition of high pulling speed, the slag strips are involved in the surface of a casting blank along with the movement of the casting blank due to untimely slag dragging, and then are flushed by secondary cooling water, so that the problem of steel leakage caused by the breaking and crusting of the casting blank is easily caused.
Therefore, the simple connecting device is designed, so that the cooling time of the casting blank which is wound with slag strips can be prolonged, and the risk of steel leakage of the casting blank is greatly reduced.
Referring to fig. 1, 2 and 3, a connecting device for dissimilar steel continuous casting in a mold, comprising: and one end of the insertion part is used for being inserted into the pouring molten steel before pouring, and the other end of the insertion part is used for being inserted into the pouring molten steel after pouring. The clamping part is arranged in the middle of the insertion part and is used for enabling the connecting device to be clamped in the crystallizer.
Specifically, the clamping part is arranged at one half of the position of the insertion part, after the insertion part is placed in the crystallizer, the clamping part takes the casting blank shell 310 in the crystallizer as a clamping groove to be clamped with the crystallizer, so that the connecting device can be clamped and fixed in the crystallizer, wherein the lower end of the insertion part is immersed in the casting molten steel poured first, the cooling speed of the casting blank wound with slag strips is enhanced, the upper end of the insertion part is exposed above the surface of the casting molten steel first at this time, a bedding is made for the follow-up casting molten steel, and the procedure of casting dissimilar steel in the crystallizer can be completed after all molten steel is cooled and solidified. The size of the insertion part is determined according to the size of the section of the crystallizer, so that the length and the width of the connecting device can be normally placed in the crystallizer.
In some embodiments of the utility model, the insert includes: the number of the inserting rods 100 is two, and the two inserting rods 100 are arranged in parallel and vertically.
Specifically, the two insertion rods 100 are vertically and oppositely arranged, the gravity center of the connecting device is stabilized, the connecting device is prevented from being inclined in the crystallizer due to unstable gravity center after the connecting device is placed in the crystallizer, and the gap between the two insertion rods 100 is used for pouring molten steel subsequently, so that the pouring molten steel first and the pouring molten steel later can be firmly connected after cooling and solidifying. The size of the two insertion rods 100 and the distance between the two insertion rods 100 are determined according to the size of the section of the mold, so that the length and width of the connecting device can be normally placed in the mold.
In some embodiments of the present utility model, the clamping portion includes: the two stop rods 200 are arranged, two ends of the two stop rods 200 are fixedly connected with the middle parts of the two insertion rods 100 respectively, and the two stop rods 200 are arranged in parallel. Two ends of the two stop rods 200 extend to the outer sides of the two insertion rods 100 along the length direction of the stop rods 200 respectively and are used for being clamped with the inside of the crystallizer.
Specifically, two ends of the two stop rods 200 are fixedly connected with one half of the two insertion rods 100 respectively, the positions of the two stop rods 200 are parallel and symmetrical, and two ends of the two stop rods 200 extend to the outer sides of the two insertion rods 100 along the length direction of the stop rods 200 respectively, so that part of the stop rods 200 respectively positioned at the outer sides of the two insertion rods 100 can be used for being connected with a crystallizer in a clamping manner. After the connecting device is placed in the crystallizer, two ends of the two stop rods 200 are clamped with the crystallizer by taking the casting blank shell 310 in the crystallizer as a clamping groove, so that the lower ends of the two insertion rods 100 are sunk into the casting molten steel poured first, the cooling speed of the casting blank coiled with slag strips can be enhanced, the upper ends of the two insertion rods 100 are exposed above the surface of the casting molten steel poured first at the moment, the subsequent casting molten steel is used as a bedding, and when all molten steel is cooled and solidified, the procedure of continuous casting of dissimilar steel in the crystallizer can be completed.
In some embodiments of the present utility model, the upper ends of the two insertion rods 100 are respectively provided with hanging holes 110, and the two hanging holes 110 are symmetrically arranged. Two insertion rods 100 can be hung at the opening of the upper end of the mold through the hanging hole 110. The two hanging holes 110 are respectively connected with oxygen lance hooks 120 for hanging the two insertion rods 100.
Specifically, the hanging holes 110 are respectively formed in the upper ends of the two inserting rods 100, the two hanging holes 110 are symmetrically arranged, the two hanging holes 110 are respectively connected with the oxygen blowing pipe hooks 120 to enable the two inserting rods 100 to be stably hung on two sides of the opening in the upper end of the crystallizer, and therefore the whole position of the connecting device can be limited, and the effect that the different steel continuous casting is affected due to the lateral deviation of the placing position of the connecting device is avoided. Meanwhile, oxygen is blown into the poured molten steel through the oxygen blowing pipe, and the blown oxygen and substances such as carbon, phosphorus, sulfur, silicon and the like in the molten steel are subjected to oxidation reaction, so that the carbon content of the steel can be reduced, impurities such as phosphorus, sulfur, silicon and the like in the molten steel can be removed, and heat generated in the oxidation process is enough to maintain the temperature required by the steelmaking process, so that the oxygen blowing is performed, the smelting time is shortened, and the steelmaking quality is improved.
In some embodiments of the present utility model, a plurality of cold bars are provided at the outer sides of the two insertion bars 100, and are uniformly arranged along the body length direction of the bar 200.
Specifically, a plurality of cold steel bars divide into two and set up, two are listed as cold steel bars and are located the outside of two pin 200 respectively, include a plurality of cold steel bars in every cold steel bar that listed as, a plurality of cold steel bars of every are all evenly arranged along the cubic length direction of pin 200, and the both ends of every cold steel bar extend along the cubic length direction of insert rod 100, and two are listed as cold steel bars one-to-one and set up, after putting connecting device into the crystallizer, let every cold steel bar all pour earlier between the molten steel with the contact in the crystallizer and solidify, promoted casting blank cooling efficiency.
In some embodiments of the present utility model, the diameter of the lance hanger 120 is 6 mm, which ensures sufficient oxygen blowing amount and prevents the cast molten steel from being unstable after cooling due to the too large diameter of the lance hanger 120.
In some embodiments of the present utility model, the diameter of the cold bar is 10 mm, avoiding insufficient solidification between the cold bar and the poured molten steel due to the too large or too small diameter of the cold bar.
The utility model also provides a crystallizer, which comprises: a crystallizer body 300. The casting shell 310, the casting shell 310 is circumferentially disposed on the inner sidewall of the mold body 300. And the connecting device in any one of the above embodiments is clamped to the top end of the billet shell 310.
Specifically, the interior of the crystallizer body 300 is provided with a receiving cavity for pouring molten steel, the inner side wall of the crystallizer body 300 is provided with a casting blank shell 310 surrounding the receiving cavity, and the connecting device in any one of the above embodiments can be clamped with the top end of the casting blank shell 310 after being placed in the receiving cavity.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "examples," "particular examples," "one particular embodiment," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The present utility model is not limited to the above preferred embodiments, and any person skilled in the art, within the scope of the present utility model, may apply to the present utility model, and equivalents and modifications thereof are intended to be included in the scope of the present utility model.
Claims (10)
1. A connecting device for continuous casting of dissimilar steel in a crystallizer, comprising:
one end of the insertion part is used for being inserted into the pouring molten steel first, and the other end of the insertion part is used for being inserted into the pouring molten steel later;
and the clamping part is arranged in the middle of the insertion part and is used for clamping the connecting device in the crystallizer.
2. The connection device for dissimilar steel continuous casting in a mold according to claim 1, wherein the insertion portion comprises:
the number of the inserting rods is two, and the two inserting rods are arranged in parallel and vertically.
3. The connection device for dissimilar steel continuous casting in a crystallizer according to claim 2, wherein the clamping part comprises:
the two stop rods are respectively fixedly connected with the middle parts of the two insertion rods, and the two stop rods are arranged in parallel.
4. The connecting device for continuous casting of dissimilar steel in a crystallizer according to claim 3, wherein two ends of the two stop rods respectively extend to the outer sides of the two insertion rods along the length direction of the stop rods and are used for being clamped with the inside of the crystallizer.
5. The connecting device for dissimilar steel continuous casting in a crystallizer according to claim 2, wherein suspension holes are respectively formed in the upper ends of the two insertion rods, and the two suspension holes are symmetrically arranged; the two inserting rods can be hung at the opening at the upper end of the crystallizer through the hanging holes.
6. The connecting device for dissimilar steel continuous casting in a crystallizer according to claim 5, wherein two hanging holes are respectively connected with an oxygen blowing pipe hook for hanging two inserted rods.
7. The connecting device for continuous casting of dissimilar steel in a crystallizer according to claim 3, wherein a plurality of cold steel bars are arranged on the outer sides of the two inserting rods, and the cold steel bars are uniformly distributed along the length direction of the stop rod.
8. The connection device for dissimilar steel continuous casting in a crystallizer according to claim 6, wherein the diameter of the oxygen lance hook is 6 mm.
9. The connection device for dissimilar steel continuous casting in a mold according to claim 7, wherein the diameter of the cold reinforcement bar is 10 mm.
10. A crystallizer, comprising:
a crystallizer body;
the casting blank shell is arranged on the inner side wall of the crystallizer body in a surrounding mode;
the connecting device according to any one of claims 1 to 9, which is snapped onto the top end of the billet shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320328840.5U CN219648650U (en) | 2023-02-27 | 2023-02-27 | Connecting device for casting dissimilar steel in crystallizer and crystallizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320328840.5U CN219648650U (en) | 2023-02-27 | 2023-02-27 | Connecting device for casting dissimilar steel in crystallizer and crystallizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219648650U true CN219648650U (en) | 2023-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320328840.5U Active CN219648650U (en) | 2023-02-27 | 2023-02-27 | Connecting device for casting dissimilar steel in crystallizer and crystallizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219648650U (en) |
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2023
- 2023-02-27 CN CN202320328840.5U patent/CN219648650U/en active Active
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