CN217512824U - Cooling device for continuous casting mold - Google Patents
Cooling device for continuous casting mold Download PDFInfo
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- CN217512824U CN217512824U CN202221206076.6U CN202221206076U CN217512824U CN 217512824 U CN217512824 U CN 217512824U CN 202221206076 U CN202221206076 U CN 202221206076U CN 217512824 U CN217512824 U CN 217512824U
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Abstract
The utility model relates to the technical field of nonferrous metal casting, in particular to a cooling device for a continuous casting mould, which comprises a primary cooling water jacket and a graphite mould positioned in the cavity of the primary cooling water jacket, wherein a flange plate is arranged at the rear end of the primary cooling water jacket; the middle part of the flange plate is provided with a ring cavity, and the flange plate is provided with an air inlet and an air outlet; an annular flow guide groove is formed in the outer peripheral surface of the graphite mold, a plurality of flow guide holes communicated with the inner cavity of the graphite mold are formed in the flow guide groove at intervals, a gas collection flow channel is formed in the wall of the graphite mold along the axial direction, the front end of the gas collection flow channel is communicated with the flow guide groove, and the rear end of the gas collection flow channel is communicated with the gas outlet. The utility model discloses have higher cooling efficiency, cooling gas and casting surface direct contact can make the excircle of casting contract fast simultaneously to and form slight interval between graphite jig's the internal surface, reduce the frictional force between graphite jig and the casting, make the surface smoothness of casting level and smooth, stability when improving the continuous production of casting.
Description
Technical Field
The utility model relates to a non ferrous metal casting technical field, concretely relates to a cooling device for continuous casting mould.
Background
In the field of nonferrous metal processing, particularly in the casting and processing of copper and copper alloys, the horizontal continuous casting technology is the main casting technology adopted in the current nonferrous metal industry;
the technology mainly depends on a water-cooling crystallization combined die device for casting production, the device is divided into primary cooling and secondary cooling, the primary cooling mainly has the function of converting liquid metal into solid metal, and the secondary cooling mainly cools the solid metal to normal temperature, so that the post-processing treatment and the safe operation are facilitated.
The primary cooling device mainly comprises a graphite die, an alloy copper sleeve, a water cooling sleeve, a water inlet and outlet pipeline, a flowmeter, a hydraulic relay and a valve. The crystallization cooling of continuous casting is to replace the heat of metal by the heat transfer of the graphite mould and the alloy copper sleeve and the heat exchange of cooling water, thereby achieving the purpose of crystallization and solidification.
In use, the fact that when the traditional indirect water cooling mode is adopted to carry out casting on crystallization and solidification of high-temperature metal solution is found that friction between the inner surface of a graphite mold and the outer surface of a casting part is rough, so that abrasion is generated on the surface of the casting part, meanwhile, the thickness and the strength of a primary solidification layer after the metal solution starts to crystallize are changed along with the heat transfer effect, the contact surface between the outer surface of the casting part and the graphite mold is rough and rough due to frequent friction, the thickness and the strength of the primary solidification layer are smaller and smaller, and casting defects such as a lane, a scar, a pit, cracks and the like can be generated on the surface of the casting part.
Meanwhile, the inner surface of the graphite mold continuously generates friction with the surface of a casting part to become rough, a large amount of waste materials are easily generated once the inner surface is abraded, energy waste is caused, the problem can be solved by frequently replacing the graphite mold, the equipment cost and the labor cost are high, the potential safety hazard of the operation of replacing the mold is large, and the provided maintenance period is long.
Disclosure of Invention
The utility model aims at providing a cooling device for continuous casting mould to the defect that prior art exists, it has higher cooling efficiency, and the gaseous and casting surface direct contact of cooling simultaneously can also make the excircle of casting contract fast to and form slight interval between the internal surface of graphite jig, reduce the frictional force between graphite jig and the casting, and then make the surface smoothness of casting level and smooth, stability when improving the continuous production of casting.
The technical scheme of the utility model is that:
a cooling device for a continuous casting mold comprises a primary cooling water jacket and a graphite mold positioned in a cooling water jacket cavity, wherein a flange plate attached to the end part of the graphite mold is arranged at the rear end of the primary cooling water jacket;
the middle part of the flange plate is provided with an annular cavity which is coaxially arranged, the flange plate is radially provided with an air inlet communicated with the annular cavity, and the rear end of the flange plate is provided with an air outlet communicated with the annular cavity;
the graphite mold is characterized in that an annular flow guide groove is formed in the peripheral surface of the graphite mold, a plurality of flow guide holes communicated with an inner cavity of the graphite mold are formed in the flow guide groove at intervals, a gas collection flow channel is formed in the wall of the graphite mold along the axial direction, the front end of the gas collection flow channel is communicated with the flow guide groove, and the rear end of the gas collection flow channel is communicated with the gas outlet.
Preferably, the gas collecting runners are multiple and arranged on the wall of the graphite mold in a surrounding mode at intervals, and the plurality of gas outlets of the flange plate correspond to the plurality of gas collecting runners on the graphite mold in a one-to-one mode.
Preferably, the graphite mold is cylindrical in outer portion, and is coaxially arranged with the flange.
Preferably, the plurality of flow guide grooves are formed in the outer peripheral surface of the graphite mold at intervals along the axial direction.
Preferably, an air tap inserted into the gas collection flow channel and communicated with the gas collection flow channel is arranged at the air outlet of the flange plate.
Preferably, the air inlet on the flange plate is connected with an air storage tank through a pipeline, and the pipeline is further connected with a gas flowmeter, a gas stop valve and a gas pressure reducing valve.
Compared with the prior art, the utility model, have following advantage:
1. the utility model has the advantages that the cooling gas is connected into the air inlet of the flange plate, the cooling gas adopts inert gas nitrogen, and the cooling gas enters the cavity of the graphite mold after sequentially flowing through the annular cavity, the air outlet, the gas collection flow passage, the flow guide groove and the flow guide hole, so that the cooling gas directly acts on the outer surface of a casting part, and the cooling efficiency is higher;
2. the cooling mode that cooling gas gets into graphite mold cavity direct action on the cast member surface can also make the excircle of cast member shrink fast to form slight interval with graphite mold's internal surface, thereby reduce the frictional force between graphite mold and the cast member, and then make the surface of cast member smooth and level, stability when improving the cast member continuous production.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the flange;
FIG. 3 is an enlarged view of the structure at A in FIG. 1;
FIG. 4 is a schematic structural view of a graphite mold;
FIG. 5 is a schematic view of the assembly of the air reservoir;
in the figure: 1. the device comprises a primary cooling water jacket, 2, a flange plate, 3, a graphite mold, 4, a gas storage tank, 5, a gas pressure reducing valve, 6, a gas stop valve, 7, a gas flowmeter, 8, a pipeline, 201, an annular cavity, 202, a gas outlet, 203, a gas inlet, 204, a gas nozzle, 301, a flow guide groove, 302, a communication hole, 303, a gas collection flow channel, 304 and a flow guide hole.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1
Referring to fig. 1 to 4, a cooling apparatus for a continuous casting mold includes a primary cooling water jacket 1 and a graphite mold 3 located in a cavity of the primary cooling water jacket 1, an outer portion of the graphite mold 3 being a cylindrical structure.
The rear end of the primary cooling water jacket 1 is provided with a flange 2 attached to the end of the graphite mold 3, and the flange 2 and the graphite mold 3 are coaxially arranged.
The middle part of the flange 2 is provided with an annular cavity 201 which is coaxially arranged, the flange 2 is provided with an air inlet 203 communicated with the annular cavity 201 along the radial direction, and the rear end of the flange 2 is provided with an air outlet 202.
An annular guide groove 301 is formed in the outer peripheral surface of the graphite mold 3, an annular gas channel is formed between the guide groove 301 and the inner peripheral surface of the primary cooling water jacket 1, and a plurality of guide holes 304 communicated with the inner cavity of the graphite mold 3 are formed in the guide groove 301 at intervals.
The wall of the graphite mold 3 is provided with a gas collecting flow channel 303 along the axial direction, the front end of the gas collecting flow channel 303 is provided with a communication hole 302 communicated with the flow guide groove 301, the rear end of the gas collecting flow channel 303 corresponds to the position of the gas outlet 202, the gas outlet 202 is provided with a gas nozzle 204 inserted into the gas collecting flow channel 303 and communicated with the gas collecting flow channel 303, and the gas nozzle 204 and the gas collecting flow channel 303 can be hermetically communicated by interference fit.
Cooling gas is introduced through the gas inlet 203 of the flange plate 2, the cooling gas is inert gas nitrogen, and the cooling gas flows through the annular cavity 201, the gas outlet 202, the gas collection flow channel 303, the flow guide groove 301 and the flow guide hole 304 in sequence and then enters the cavity of the graphite mold 3, so that the cooling gas directly acts on the outer surface of a casting part, and the cooling efficiency is higher;
meanwhile, the cooling gas enters the cavity of the graphite mold 3 and directly acts on the cooling mode of the outer surface of the casting, so that the outer circle of the casting can be quickly contracted and forms a fine space with the inner surface of the graphite mold 3, the friction force between the graphite mold 3 and the casting is reduced, the surface of the casting is smooth and flat, the stability of the casting during continuous production is improved, and the service life of the graphite mold 3 is prolonged.
In addition, in the process of cooling by directly acting the inert gas on the surface of the casting, the cooling effect of the casting can be timely improved by adjusting the flow of the inert gas, so that the thickness and the strength of a primary solidified layer of the casting can be changed within a controllable range.
Example 2
The embodiment is further optimized on the basis of embodiment 1, and specifically comprises the following steps:
the gas collecting channels 303 on the graphite mold 3 are multiple and are arranged on the wall of the graphite mold 3 at intervals in a surrounding manner, and the gas outlets 202 of the flange 2 are multiple and correspond to the multiple gas collecting channels 303 on the graphite mold 3 one by one.
A plurality of guide grooves 301 are formed in the outer circumferential surface of the graphite mold 3 at intervals in the axial direction.
Through the design of arranging a plurality of gas collecting flow channels 303 and a plurality of flow guide grooves 301 on the graphite mold 3, cooling gas can enter the cavity of the graphite mold 3 more uniformly at a plurality of positions, and the cooling efficiency of a cast part is further improved.
Example 3
The embodiment is further optimized on the basis of embodiment 1 or embodiment 2, and specifically includes:
referring to fig. 5, the gas inlet 203 of the flange 2 is connected with a gas storage tank 4 for storing cooling gas through a pipeline 8, and the pipeline 8 is further connected with a gas flow meter 7, a gas stop valve 6 and a gas pressure reducing valve 5.
By adding the gas storage tank 4, the gas flowmeter 7 and the valves, the cooling gas can be more stably conveyed into the graphite mold 3, and the stability during continuous production is further improved.
The present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge range of those skilled in the art without departing from the spirit of the present invention, and the changed contents still belong to the protection scope of the present invention.
Claims (6)
1. A cooling device for a continuous casting mold, comprising a primary cooling water jacket and a graphite mold located in a cooling water jacket cavity, characterized in that: the rear end of the primary cooling water jacket is provided with a flange plate attached to the end part of the graphite mold;
the middle part of the flange plate is provided with an annular cavity which is coaxially arranged, the flange plate is radially provided with an air inlet communicated with the annular cavity, and the rear end of the flange plate is provided with an air outlet communicated with the annular cavity;
the graphite mold is characterized in that an annular flow guide groove is formed in the peripheral surface of the graphite mold, a plurality of flow guide holes communicated with an inner cavity of the graphite mold are formed in the flow guide groove at intervals, a gas collection flow channel is formed in the wall of the graphite mold along the axial direction, the front end of the gas collection flow channel is communicated with the flow guide groove, and the rear end of the gas collection flow channel is communicated with the gas outlet.
2. A cooling apparatus for a continuous casting mold according to claim 1, characterized in that: the gas collecting runners are arranged on the wall of the graphite mold in a surrounding mode at intervals, and the flange plate is provided with a plurality of gas outlets which correspond to the gas collecting runners on the graphite mold one by one.
3. A cooling device for a continuous casting mold according to claim 1, characterized in that: the graphite mold is cylindrical in outer portion and is coaxially arranged with the flange.
4. A cooling device for a continuous casting mold according to claim 1, characterized in that: the peripheral surface of the graphite mould is provided with a plurality of diversion trenches at intervals along the axis direction.
5. A cooling device for a continuous casting mold according to claim 1, characterized in that: and an air nozzle which is inserted into the gas collection flow passage and communicated with the gas collection flow passage is arranged at the air outlet of the flange plate.
6. A cooling apparatus for a continuous casting mold according to claim 5, characterized in that: the gas inlet on the flange plate is connected with a gas storage tank through a pipeline, and the pipeline is further connected with a gas flowmeter, a gas stop valve and a gas pressure reducing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221206076.6U CN217512824U (en) | 2022-05-20 | 2022-05-20 | Cooling device for continuous casting mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221206076.6U CN217512824U (en) | 2022-05-20 | 2022-05-20 | Cooling device for continuous casting mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217512824U true CN217512824U (en) | 2022-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221206076.6U Active CN217512824U (en) | 2022-05-20 | 2022-05-20 | Cooling device for continuous casting mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217512824U (en) |
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2022
- 2022-05-20 CN CN202221206076.6U patent/CN217512824U/en active Active
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