CN211438023U - Secondary cooler of continuous casting crystallizer and crystallizer thereof - Google Patents
Secondary cooler of continuous casting crystallizer and crystallizer thereof Download PDFInfo
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- CN211438023U CN211438023U CN201922315021.3U CN201922315021U CN211438023U CN 211438023 U CN211438023 U CN 211438023U CN 201922315021 U CN201922315021 U CN 201922315021U CN 211438023 U CN211438023 U CN 211438023U
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- aftercooler
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Abstract
The utility model discloses a secondary cooler of a continuous casting crystallizer, which comprises a secondary cooler main body and an inner water spraying sleeve; a plurality of circles of water spraying holes are arranged around the circumference of the inner water spraying sleeve and are arranged along the axial direction of the inner water spraying sleeve; the inner water spraying sleeve is arranged in a second casting hole of the secondary cooler main body; an annular convex ring is arranged at one end of the inner water spraying sleeve, which is close to the joint of the secondary cooler and the primary cooler, and the annular convex ring is protruded inwards along the radial direction of the inner water spraying sleeve; a circle of water spray holes of the inner water spray sleeve, which are close to the annular convex ring, are a first circle of water spray holes, and the first circle of water spray holes comprise a plurality of first water spray holes; an included angle alpha is formed between the hole axis E of each first water spray hole and the axis F of the main body of the secondary cooler, and the value range of alpha is more than or equal to 55 degrees and less than or equal to 65 degrees. Therefore, the utility model has the advantages of can reach in the secondary cooling water that prevents in the secondary cooler gets into primary cooler, be favorable to promoting secondary cooling water to secondary cooler export orientation flow.
Description
Technical Field
The utility model relates to a crystallizer field especially relates to a recooler of continuous casting crystallizer and crystallizer thereof.
Background
In the copper pipe casting crystallizer, a primary cooling area needs to realize dynamic heat dissipation and cooling of high-temperature copper liquid entering a graphite mold cavity from an external mold sleeve and an internal core rod respectively so as to realize solidification and crystallization of inner and outer layer metals of a casting pipe wall. Under the continuous traction action of a casting tractor, the casting pipe with solidified outer layer metal enters a secondary cooling area of the crystallizer, cooling water sprayed by a secondary cooler directly sprays to the surface of the casting pipe and then flows out, the heat of the solidified casting pipe is further taken away by a larger supercooling degree, the refining of a crystalline structure is promoted, and the surface temperature of the casting pipe is reduced to be close to the room temperature state and is led out of the crystallizer.
The existing crystallizer is mainly a frame-type crystallizer, the secondary cooler 100 of the frame-type crystallizer mainly comprises a secondary cooler main body 102 with a casting hole and an inner water spraying sleeve 200 (see fig. 1 to 2), the inner water spraying sleeve 200 is installed in the casting hole of the secondary cooler main body 102, the inner water spraying sleeve 200 is in a conical pipe shape, that is, the inner wall of the inner water spraying sleeve 200 has a slope, an included angle β is formed between the inner wall of the inner water spraying sleeve 200 and the axis of the secondary cooler main body 102, the inner diameters of the inner parts of the inner water spraying sleeve 200 are different, and a plurality of circles of water spraying holes are arranged along the circumferential direction of the inner water spraying sleeve 200; however, the secondary cooler of the frame-type mold of the present invention has the following problems: firstly, the inner water-spraying sleeve 200 can contain a small number of water-spraying holes due to the defect of the design of the shape, and the cooling capacity of the secondary cooler is directly influenced; secondly, the hole axis a of the water spray hole of the internal water spray sleeve 200 is perpendicular to the axis B of the secondary cooler and is a centripetal water spray hole, so that there is a problem in the use process that the water sprayed from the water spray hole is scattered in all directions, which is allowed for the water spray holes in the middle and in the front of the secondary cooling zone (the ingot pulling advancing direction C is taken as the front, the same is true below), but is not allowed for the rear, especially for the last ring water spray hole 300 close to the joint of the primary cooler and the secondary cooler, because the last ring water spray hole 300 is close to the joint of the primary cooler and the secondary cooler, so that a part of the sprayed water is scattered towards the direction of the primary cooler, thereby forming a water curtain flowing backwards towards the primary cooler, causing the liquid water to enter the primary cooler through the joint surface between the primary cooler and the secondary cooler, even contacting the tube blank still in the liquid state, thereby affecting the casting effect and the casting safety and stability. In order to solve this problem, one usually moves the position of the water spray holes forward along the towing direction (see fig. 1 and 2, as shown in fig. 1 and 2), i.e., the last water spray hole 300 on the inner water spray sleeve 200 is separated from the primary cooler by a larger distance D1, so as to reduce the water scattered from the last water spray hole 300 entering the joint surface between the primary cooler and the secondary cooler, however, this design cannot completely avoid the water scattered from the last water spray hole 300 entering the primary cooler, and this design also results in poor cooling effect of the rear section of the secondary cooling area and uneven cooling, and in addition, the cooling water scattered from the water spray holes is also not beneficial to pushing the cooling water to flow towards the outlet of the secondary cooler.
Disclosure of Invention
The utility model aims at providing a can reach the secondary cooling water that prevents in the secondary cooling ware and get into the secondary cooling water that is favorable to promoting the secondary cooling district in the primary cooler to the secondary cooler export direction mobile continuous casting crystallizer's secondary cooler.
The utility model also provides a can hold more the hole for water jets, can reach the secondary cooling water that prevents in the secondary cooler get into the primary cooler, be favorable to promoting the secondary cooling area the crystallizer that the secondary cooling water flows to secondary cooler export direction.
In order to achieve the above purpose, the utility model adopts the following technical scheme: providing an aftercooler of a continuous casting crystallizer, comprising an aftercooler main body with a second casting hole and an inner water spraying sleeve;
a plurality of circles of water spraying holes are arranged around the circumference of the inner water spraying sleeve and are arranged along the axial direction of the inner water spraying sleeve;
the inner water spraying sleeve is arranged in a second casting hole of the secondary cooler main body; an annular convex ring is arranged at one end of the inner water spraying sleeve, which is close to the joint of the secondary cooler and the primary cooler, and the annular convex ring is protruded inwards along the radial direction of the inner water spraying sleeve;
a circle of water spray holes of the inner water spray sleeve, which are close to the annular convex ring, are a first circle of water spray holes, and the first circle of water spray holes comprise a plurality of first water spray holes;
an included angle alpha is formed between the hole axis E of each first water spray hole and the axis F of the main body of the secondary cooler, and the value range of alpha is more than or equal to 55 degrees and less than or equal to 65 degrees.
As the improvement of the utility model, the water sprayed from the first water spraying holes can be obliquely hit on the inner surface of the annular convex ring.
As a modification of the present invention, the inner diameter D2 is the same throughout the inside of the inner water jet sleeve.
As an improvement of the utility model, a plurality of circles of water spraying holes are arranged along the axial direction of the inner water spraying sleeve in a staggered way.
As the utility model discloses an improvement, the aftercooler main part is equipped with inlet channel, wet return and overflow delivery port with the second casting hole intercommunication, the inner wall of aftercooler main part has the annular groove, interior water spray cover install behind the aftercooler main part will the annular groove encloses into the water inlet ring chamber, the water inlet ring chamber with inlet channel, a plurality of circles hole for water spraying intercommunication.
As an improvement of the utility model, the overflow outlet is provided with a guide groove.
As the improvement of the utility model, a guide plate is arranged below the secondary cooler main body.
The utility model discloses an another scheme is: the utility model provides a crystallizer, including graphite mold, copper sheathing, the primary cooler who has first casting hole, aftercooler to and casting initiation stick, the copper sheathing is inlayed the surface of graphite mold, graphite mold and copper sheathing setting are in the first casting hole of aftercooler, casting initiation stick grafting is in graphite mold front end, the aftercooler is installed at the primary cooler front end, the primary cooler is installed on the casting furnace face board, its characterized in that, the aftercooler is aforementioned aftercooler.
As the utility model discloses an improvement, cooler includes cooler main part, preceding flange, rear flange once to and the cover in the middle of the cooling, preceding flange is located the preceding terminal surface in first casting hole, the rear flange is located first casting hole rear end face, the cover is located first casting hole in the middle of the cooling.
As the improvement of the utility model, the primary cooler main body, the cooling middle sleeve and the front flange (18) are assembled into a whole through a first connecting piece.
The utility model is characterized in that one end of the inner water spraying sleeve, which is close to the joint of the secondary cooler and the primary cooler, is provided with an annular convex ring which is protruded inwards along the radial direction of the inner water spraying sleeve; a circle of water spray holes of the inner water spray sleeve, which are close to the annular convex ring, are a first circle of water spray holes, and the first circle of water spray holes comprise a plurality of first water spray holes; an included angle alpha is formed between the hole axis E of each first water spray hole and the axis F of the main body of the secondary cooler, and the value range of alpha is more than or equal to 55 degrees and less than or equal to 65 degrees. The utility model discloses when using, the high-speed rivers that erupt from the first circle hole for water spraying, can hit and hit on the internal surface of cyclic annular protruding circle, high-speed rivers receive the reflection that takes place after blockking of cyclic annular protruding circle, change original rivers direction, can only shoot to the direction unanimous with the ingot casting traction direction of advance, form the cascade unanimous with the ingot casting traction direction of advance, thereby the secondary cooling water backward flow in the separation secondary cooler is to the primary cooler, avoid the secondary cooling water to get into the primary cooler through the junction between primary cooler and the secondary cooler, just prevented that the secondary cooling water from contacting still being in liquid pipe in the primary cooler, avoided the secondary cooling water to get into the influence that causes the casting in the primary cooler backward, reach the mesh that promotes security and stability; furthermore, the utility model discloses in, draw the cascade that the direction of advance is unanimous with the ingot casting and can promote the secondary cooling water in the aftercooler with higher speed and flow to the export direction of aftercooler, increase aftercooler's secondary cooling effect. Therefore, the utility model has the advantages of can reach the secondary cooling water that prevents in the secondary cooler get into primary cooler, be favorable to promoting the secondary cooling water in secondary cooling district to secondary cooler export orientation flow.
Drawings
FIG. 1 is a schematic diagram of a prior art aftercooler;
FIG. 2 is an enlarged schematic view of the structure at M in FIG. 1;
FIG. 3 is a schematic structural view of an embodiment of the aftercooler of the present invention;
FIG. 4 is an enlarged schematic view of the structure at N in FIG. 3;
FIG. 5 is an enlarged view of the point P in FIG. 4;
FIG. 6 is a perspective view of FIG. 3;
FIG. 7 is a schematic structural view of the crystallizer of the present invention installed on the casting furnace deck;
fig. 8 is an enlarged schematic view of the structure at Q in fig. 7.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments:
referring first to fig. 3 to 6, fig. 3 to 6 disclose an embodiment of an aftercooler of a continuous casting mold, which includes an aftercooler main body 60 having a second casting hole 61 and an inner water spray jacket 62; a plurality of circles of water spray holes are arranged around the circumference of the inner water spray sleeve 62 and are arranged along the axial direction of the inner water spray sleeve 62; the inner water spray jacket 62 is disposed within the second casting hole 61 of the aftercooler body 60; an annular convex ring 621 is arranged at one end of the inner water spraying sleeve 62 close to the joint of the secondary cooler 6 and the primary cooler 1, and the annular convex ring 621 protrudes inwards along the radial direction of the inner water spraying sleeve 62; a circle of water spraying holes of the inner water spraying sleeve 62, which are close to the annular convex ring 621, are a first circle of water spraying holes, and the first circle of water spraying holes comprise a plurality of first water spraying holes 63; an included angle α is formed between the hole axis E of each first water jet hole 63 and the secondary cooler main body axis F, the value range of α is greater than or equal to 55 degrees and less than or equal to 65 degrees, in this embodiment, specifically, the included angle α is 60 degrees, and water jetted by the first water jet holes 63 can obliquely hit the inner surface 6210 of the annular convex ring 621 and then is reflected to the ingot casting traction advancing direction C to be jetted. When the utility model is used, the high-speed water flow jetted from the first water jet holes 63 of the first circle of water jet holes can hit the annular convex ring 621, specifically, the high-speed water flow is obliquely hit on the inner surface 6210 of the annular convex ring 621, the high-speed water flow is reflected after being blocked by the annular convex ring 621, the original water flow direction is changed, the high-speed water flow can only be jetted to the direction consistent with the ingot casting traction advancing direction C, namely, the high-speed water flow is jetted to the direction away from the joint of the primary cooler 1 and the secondary cooler 6 to form a water curtain consistent with the ingot casting traction advancing direction C, so that the secondary cooling water in the secondary cooler 6 is prevented from reversely flowing into the primary cooler, the secondary cooling water is prevented from entering the primary cooler through the joint between the primary cooler and the secondary cooler, the secondary cooling water is also prevented from contacting the primary cooler and still being in a liquid state, and the influence on casting caused by the secondary cooling water reversely entering the primary cooler is avoided, the purposes of improving safety and stability are achieved; furthermore, the utility model discloses in, draw the cascade that the direction of advance is unanimous with the ingot casting and can promote the secondary cooling water in the aftercooler with higher speed and flow to the export direction of aftercooler, increase aftercooler's secondary cooling effect.
The utility model discloses in, it is preferred, internal diameter D2 everywhere of the inside of interior water spray cover 62 is the same, and the advantage that so sets up lies in, for prior art, this embodiment can increase interior water spray cover 62's surface area, makes interior water spray cover 62 can hold more hole for water sprayings to promote aftercooler's cooling capacity.
The utility model discloses in, preferred, the axial staggered arrangement of water spout cover 62 in a plurality of rings of hole for water spout 62's distribution including the hole for water spout is more even including the hole for water spout, is favorable to the secondary cooling water in the aftercooler to be more even to casting pipe's cooling everywhere, prevents that local cooling is excessive or not cool off the emergence of the phenomenon that targets in place.
In the utility model, preferably, the secondary cooler main body 60 is provided with a water inlet pipe 604, a water return pipe 606 and an overflow water outlet 607, the water return pipe 606 and the overflow water outlet 607 are communicated with the second casting hole 61, the inner wall of the secondary cooler main body 60 is provided with an annular groove, the inner water spraying sleeve 62 is arranged behind the secondary cooler main body 60 to enclose the annular groove into a water inlet ring cavity 605, the water inlet ring cavity 605 is communicated with the water inlet pipe 604 and a plurality of circles of water spraying holes, in the embodiment, the water inlet pipe 604 is provided with two branches which are distributed on the upper part and the lower part of the secondary cooler main body 60, when in use, secondary cooling water enters through the water inlet pipe 604 and then enters the water inlet ring cavity 605, the secondary cooling water is sprayed to the casting pipe in the second casting hole through the water spraying holes in the water inlet ring cavity 605 to cool the casting pipe, and then the secondary cooling water flows out from the water return pipe 606 and the overflow water outlet 607 again, so that the cooling of the casting pipe in the secondary cooler is completed.
The utility model discloses in, it is preferred overflow delivery port 607 department is equipped with guide slot 602, sets up the aim at of guide slot 602, makes the secondary cooling water direction that overflows the aftercooler concentrate the back flow direction once more and has been drawn the upper surface that leaves the casting pipe of aftercooler, forms the outer water-cooling region of one section aftercooler, has reached the temperature effect that further reduces the casting pipe.
The utility model discloses in, it is preferred, aftercooler main part 60 below is equipped with guide plate 603, and this guide plate 603 can make the secondary cooling water that overflow delivery port 607 flows out collect the back flow in the secondary water collecting vat (not drawn in the picture) before the stove to reduce the evaporation area of the secondary cooling water that overflow delivery port 607 flows out and reduce the air dust of the higher concentration in founding workshop and fall into the secondary cooling circulation aquatic and cause the pollution, the prevention is because of the potential safety hazard that the interior too much jam hole for water spraying of pollutant of aftercooling water caused.
The utility model provides a crystallizer (as shown in fig. 7 to 8), a crystallizer, including graphite jig 3, copper sheathing 4, cooler 1, aftercooler 6 that have first casting hole to and cast and lead up stick 7, graphite jig 3 includes graphite mould plug 31 and graphite mould overcoat 32, copper sheathing 4 is inlayed graphite jig 3's surface is inlayed promptly graphite mould overcoat 32's surface, graphite jig 3 and copper sheathing 4 set up in cooler 1's first casting hole, the casting is led up stick 7 and is pegged graft graphite jig 3 front end, aftercooler 6 is installed at cooler 1 front end, cooler 1 is installed on casting furnace face board 81, aftercooler 6 is aforementioned aftercooler 6. When the utility model is used, the high-speed water flow jetted from the first water jet holes 63 of the first circle of water jet holes can hit the annular convex ring 621, specifically, hit on the inner surface 6210 of the annular convex ring 621, the high-speed water flow is reflected after being blocked by the annular convex ring 621, the original water flow direction is changed, the high-speed water flow can only be jetted to the direction consistent with the ingot casting traction advancing direction C, namely, the high-speed water flow is jetted to the direction away from the joint of the primary cooler 1 and the secondary cooler 6 to form a water curtain consistent with the ingot casting traction advancing direction C, so that the secondary cooling water in the secondary cooler 6 is prevented from reversely flowing into the primary cooler, the secondary cooling water is prevented from entering the primary cooler through the joint between the primary cooler and the secondary cooler, the secondary cooling water is prevented from contacting the primary cooler and still being in a liquid state, the secondary cooling water is prevented from reversely entering the primary cooler to influence on casting, the purposes of improving safety and stability are achieved; furthermore, the utility model discloses in, draw the cascade that the direction of advance is unanimous with the ingot casting and can promote the secondary cooling water in the aftercooler with higher speed and flow to the export direction of aftercooler, increase aftercooler's secondary cooling effect.
The utility model discloses in, it is preferred, cooler 1 includes cooler main part 10, preceding flange 18, rear flange 19 once to and cover 5 in the middle of the cooling, preceding flange 18 is located the preceding terminal surface in first casting hole, rear flange 19 is located first casting hole rear end face, cover 5 is located first casting hole in the middle of the cooling. Specifically, the primary cooler main body 10, the cooling intermediate jacket 5 and the front flange 18 are assembled integrally by a first connecting member. Specifically, the primary cooler main body 10, the cooling intermediate jacket 5 and the front flange 18 are integrally assembled by a first connecting member (not shown). In the utility model, the whole primary cooler is assembled into a whole through the first connecting piece, therefore, compared with the welding forming in the prior art, the primary cooler 1 of the utility model has no welding stress, the structure is more firm, the size precision is higher after the assembly of each part, the problems of uneven crystal structure of the casting pipe, deformation of the crystallizer, influence on the installation precision, the casting production safety and the like are not easy to occur in the casting use process, and the service life is longer; primary cooler main part 10 is formed through the direct processing of monoblock blank, therefore, the utility model discloses when installation or dismantlement, because primary cooler main part 10 is integral, consequently, after whole assembly, can be with the monoblock primary cooler main part 10 and assemble on other parts whole handling on it to casting furnace level casting goes out the copper mouth, once alright accomplish porous cast installation, and is very convenient, during the dismantlement, also can leave casting furnace level casting copper mouth with monoblock primary cooler main part 10 and the whole handling of other parts of assembling on it, convenient operation, the dismouting is efficient, and work load still less.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.
Claims (10)
1. An aftercooler of a continuous casting mold includes an aftercooler body (60) having a second casting hole (61) and an inner water spray jacket (62);
a plurality of circles of water spraying holes are arranged around the circumference of the inner water spraying sleeve (62), and are arranged along the axial direction of the inner water spraying sleeve (62);
the inner water spray jacket (62) is disposed within a second casting bore (61) of the aftercooler body (60); it is characterized in that the preparation method is characterized in that,
one end of the inner water spraying sleeve (62) close to the joint of the secondary cooler (6) and the primary cooler (1) is provided with an annular convex ring (621), and the annular convex ring (621) protrudes inwards along the radial direction of the inner water spraying sleeve (62);
a circle of water spraying holes of the inner water spraying sleeve (62) close to the annular convex ring (621) are a first circle of water spraying holes, and the first circle of water spraying holes comprise a plurality of first water spraying holes (63);
an included angle alpha is formed between the hole axis E of each first water spraying hole (63) and the axis F of the main body of the secondary cooler, and the value range of alpha is more than or equal to 55 degrees and less than or equal to 65 degrees.
2. The aftercooler of a continuous casting mold according to claim 1, characterized in that the water sprayed from said first water spray holes (63) is obliquely hit on the inner surface (6210) of said annular convex ring (621).
3. The aftercooler of a continuous casting mold according to claim 1 or 2, characterized in that the inner diameter D2 is the same throughout the interior of the inner water spray jacket (62).
4. The aftercooler of a continuous casting mold according to claim 3, wherein the plurality of water spray holes are staggered in the axial direction of the inner water spray sleeve (62).
5. The aftercooler of the continuous casting crystallizer of claim 1 or 2, wherein the aftercooler main body (60) is provided with a water inlet pipeline (604), a water return pipeline (606) and an overflow water outlet (607), the water return pipeline (606) and the overflow water outlet (607) are communicated with the second casting hole (61), the inner wall of the aftercooler main body (60) is provided with an annular groove, the inner water spray sleeve (62) is installed on the aftercooler main body (60) to enclose the annular groove into a water inlet ring cavity (605), and the water inlet ring cavity (605) is communicated with the water inlet pipeline (604) and a plurality of circles of water spray holes.
6. The aftercooler of a continuous-casting mold according to claim 5, characterized in that a channel (602) is provided at the overflow outlet (607).
7. The aftercooler of a continuous casting mold according to claim 1 or 2, characterized in that a deflector (603) is provided under the aftercooler body (60).
8. A crystallizer comprising a graphite mould (3), a copper jacket (4), a primary cooler (1) with a first casting hole, a secondary cooler (6), and a casting initiation bar (7), wherein the copper jacket (4) is embedded on the outer surface of the graphite mould (3), the graphite mould (3) and the copper jacket (4) are arranged in the first casting hole of the primary cooler (1), the casting initiation bar (7) is inserted in the front end of the graphite mould (3), the secondary cooler (6) is arranged in the front end of the primary cooler (1), the primary cooler (1) is arranged on a casting furnace panel (81), characterized in that the secondary cooler (6) is the secondary cooler (6) as claimed in any one of claims 1 to 6.
9. Crystallizer as in claim 8, characterized in that the primary cooler (1) comprises a primary cooler body (10), a front flange (18), a rear flange (19), and a cooling intermediate jacket (5), the front flange (18) being located at the front end face of the first casting hole, the rear flange (19) being located at the rear end face of the first casting hole, the cooling intermediate jacket (5) being located inside the first casting hole.
10. Crystallizer as in claim 9, characterized in that said primary cooler body (10), the cooling intermediate jacket (5) and the front flange (18) are assembled in a single piece by first connecting elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922315021.3U CN211438023U (en) | 2019-12-21 | 2019-12-21 | Secondary cooler of continuous casting crystallizer and crystallizer thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922315021.3U CN211438023U (en) | 2019-12-21 | 2019-12-21 | Secondary cooler of continuous casting crystallizer and crystallizer thereof |
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| Publication Number | Publication Date |
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| CN211438023U true CN211438023U (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922315021.3U Active CN211438023U (en) | 2019-12-21 | 2019-12-21 | Secondary cooler of continuous casting crystallizer and crystallizer thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116921640A (en) * | 2023-07-26 | 2023-10-24 | 常州润来科技有限公司 | Cooling traction device and method for horizontal continuous casting copper pipe |
-
2019
- 2019-12-21 CN CN201922315021.3U patent/CN211438023U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116921640A (en) * | 2023-07-26 | 2023-10-24 | 常州润来科技有限公司 | Cooling traction device and method for horizontal continuous casting copper pipe |
| CN116921640B (en) * | 2023-07-26 | 2024-01-23 | 常州润来科技有限公司 | Cooling traction device and method for horizontal continuous casting copper pipe |
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