CN210996370U - Up-drawing continuous casting furnace - Google Patents
Up-drawing continuous casting furnace Download PDFInfo
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- CN210996370U CN210996370U CN201921733666.2U CN201921733666U CN210996370U CN 210996370 U CN210996370 U CN 210996370U CN 201921733666 U CN201921733666 U CN 201921733666U CN 210996370 U CN210996370 U CN 210996370U
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- flow guide
- casting furnace
- continuous casting
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Abstract
The utility model provides an up-drawing continuous casting furnace, which comprises a smelting furnace, a standing furnace communicated with the smelting furnace through a first flow guide through hole, and a drawing casting furnace communicated with the standing furnace through a second flow guide through hole; two through hole openings of the first flow guide through hole are respectively positioned at the bottoms of the smelting furnace and the standing furnace; two through holes of the second flow guide through hole are respectively positioned at the bottoms of the standing furnace and the casting furnace; the flow blocking wall is arranged at the bottom in the standing furnace and is positioned between the through hole opening of the first flow guide through hole and the through hole opening of the second flow guide through hole. The utility model discloses a carry and stew with the mode of undercurrent, transfer the pure metal liquation that does not have the sediment to drawing the casting furnace and draw the casting, fine improvement the casting blank quality.
Description
Technical Field
The utility model relates to the technical field of metal smelting, concretely relates to draw continuous casting furnace.
Background
The new process for producing oxygen-free copper rod by up-drawing continuous casting method features advanced technological process, good product quality, low unit energy consumption, flexible and various production varieties and specifications, strong adaptability, no pollution of three wastes and less investment, so it is an ideal process for processing copper conductor and copper material.
The up-drawing continuous casting furnace used at present comprises a smelting furnace and a drawing furnace which are directly connected through a launder. When the metal in the smelting furnace is melted into metal solution, the metal solution directly enters the casting furnace through the launder, so that slag directly enters the casting furnace, and the quality of a casting blank is affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide an upward continuous casting furnace.
An embodiment of the utility model provides an upward continuous casting furnace, include: the furnace body is provided with a smelting furnace of a melting heater, a standing furnace communicated with the smelting furnace through a first flow guide through hole, and a casting furnace communicated with the standing furnace through a second flow guide through hole and provided with a heat preservation heater;
two through hole openings of the first flow guide through hole are respectively positioned at the bottoms of the smelting furnace and the standing furnace;
two through holes of the second flow guide through hole are respectively positioned at the bottoms of the standing furnace and the casting furnace;
the flow blocking wall is arranged at the bottom in the standing furnace and is positioned between the through hole opening of the first flow guide through hole and the through hole opening of the second flow guide through hole.
Compared with the prior art, the utility model discloses a mode with the undercurrent is carried and is stood, the undercurrent can avoid taking out the dross of smelting pot top layer, the slag that the wall can avoid sinking the end moves to drawing the foundry furnace, simultaneously with the molten metal that the undercurrent came, upwards move under the stopping of wall that keeps off the class of wall and drive molten metal's dross and bubble come-up, it makes the molten metal bottom be pure nothing sediment to further make molten metal's dross and bubble come-up after stewing, it transfers pure bottom molten metal that does not have the sediment to drawing the foundry furnace through the undercurrent again and draws and casts, slag and bubble have been got rid of, fine improvement casting blank quality.
Further, the top end of the flow blocking wall is higher than the top ends of the through hole opening of the first flow guide through hole and the through hole opening of the second flow guide through hole. Further prevent the molten metal from directly flowing to the second flow guide through hole from the first flow guide pupil.
Further, two opposite side walls of the flow blocking wall are connected to the side walls in the standing furnace. The slag and the molten metal at the bottom are prevented from directly bypassing the flow blocking wall from the side edge.
Furthermore, a switch for controlling the opening and closing of the first flow guide through hole is arranged at the first flow guide through hole. The metal melt in the smelting furnace is completely melted and discharged when the components meet, the casting furnace starts to carry out the casting, the first flow guide through hole is closed after the discharge, the raw material can be continuously melted, the casting and the melting of the raw material are carried out simultaneously, and the situation that the unmelted raw material or the metal melt with the incompatible components flows into the casting furnace is avoided.
The casting device further comprises a crystallizer arranged above the casting furnace, and the crystallizer extends into the liquid level of the molten metal in the casting furnace.
Further, the depth of the crystallizer extending into the liquid level is more than 100 mm. If the depth of insertion is too small, the fluctuation of the liquid level affects the cooling of the mold, and the quality of the cast slab is affected.
Further, the device also comprises a liquid level controller arranged in the casting furnace. And detecting the liquid level, and discharging the smelting furnace when the liquid level in the casting furnace is lower.
The crystallizer is arranged at the lifting device and driven by the lifting device to lift;
the liquid level controller detects the liquid level in the casting furnace to send out a control signal, and the motor receives the control signal to drive the crystallizer at the lifting device to lift. The liquid level of the casting furnace is lowered along with the entering of the molten metal into the crystallizer, the crystallizer needs to be inserted into the liquid level at a proper depth, if the insertion depth is too shallow, the cooling of the crystallizer is influenced by the fluctuation of the liquid level, the quality of a cast strand is influenced, but if the insertion depth is not too deep, more molten metal enters the lower part of the crystallizer, and the formation of a birth solidified shell is influenced. When the liquid level is lowered, the crystallizer is controlled to be lowered, and when the liquid level is raised, the crystallizer is controlled to be raised, so that the crystallizer and the liquid level are kept relatively static, and the crystallizer can be kept at a proper insertion depth.
Further, a protective sleeve is arranged on the crystallizer. Used for protecting the crystallizer.
Further, the device also comprises a temperature detector arranged in the casting furnace. The temperature in the casting furnace is detected, and since the molten metal temperature is lowered after the standing and may be re-solidified, it is necessary to detect and avoid the temperature from being too low.
In order that the invention may be more clearly understood, particular embodiments of the invention will now be described with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of an up-drawing continuous casting furnace according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1, which is a schematic structural diagram of an up-drawing continuous casting furnace according to an embodiment of the present invention, which includes a melting furnace 10, a standing furnace 20, a casting furnace 40, and a baffle wall 50.
The lower furnace body 11 of the smelting furnace 10 is provided with a melting heater. Preferably, a temperature detector 60 is further provided in the melting furnace 10 for measuring the temperature inside the melting furnace 10 in cooperation with the melting heater to maintain the molten metal in the melting temperature range. Preferably, the smelting furnace 10 may also be provided with a stirrer 12. The smelting furnace 10 adds raw materials 14 into the smelting furnace 10 through a feeding trolley 13 for smelting, and stirring is carried out through a stirrer 12 during the smelting process.
The stationary furnace 20 communicates with the melting furnace 10 through a first flow guiding through hole (not shown), and two through holes of the first flow guiding through hole are respectively located at the bottom of the melting furnace 10 and the stationary furnace 20, so that dross is mostly retained in the melting furnace 10 without entering the stationary furnace 20 through the through hole provided at the bottom. Preferably, a switch for controlling the opening and closing of the first flow guiding through hole is arranged at the first flow guiding through hole, in this embodiment, the switch is a stopper rod 21, the standing furnace 20 and the smelting furnace 10 are connected by a tapping base 22, the first flow guiding through hole is arranged at the tapping base 22, the stopper rod 21 is slidably inserted on the tapping base 22 and blocks the first flow guiding through hole along an axis direction perpendicular to the first flow guiding through hole, and when the first flow guiding through hole needs to be opened, the stopper rod 21 is pulled up to enable the first flow guiding through hole to be conducted.
The lower furnace body 41 of the leading casting furnace 40 is provided with a heat preservation heater, the leading casting furnace 40 is communicated with the standing furnace 20 through a second flow guide through hole 30, two through holes of the second flow guide through hole 30 are respectively positioned at the standing furnace 20 and the bottom of the leading casting furnace 40, because the heating in the smelting furnace 10 is carried out at the bottom, the metal solution in the smelting furnace 10 is rolled due to the uneven temperature of the place close to the liquid level and the bottom of the smelting furnace 10, so that partial scum flows to the bottom of the molten metal due to rolling and then enters the standing furnace 20 through the first flow guide through hole, and after the standing of the standing furnace 20, the scum floats upwards, and the molten metal becomes pure and flows into the leading casting furnace 40 from the second flow guide through hole 30. Preferably, a temperature detector 60 is further provided in the casting furnace 40 for measuring the temperature in the casting furnace 40 to match the holding heater 41 for keeping the molten metal in the casting temperature range. Preferably, when the first diversion through hole is provided with a switch, a liquid level controller 42 is further arranged in the casting furnace 40 for detecting the liquid level change, because the raw material in the smelting furnace 10 is transported to the casting furnace 40 after being melted, and the first diversion through hole is closed after the transportation is finished so as to carry out the next smelting, the liquid level in the smelting furnace 10 is different from the liquid level in the casting furnace 40, and needs to be detected, so that the overflow of the molten metal due to the overhigh liquid level in the casting furnace 40 and the standing furnace 20 can be avoided.
In some embodiments, a mold 43 is further disposed above the casting furnace 40, the mold 43 extends into the molten metal level in the casting furnace 40, and the cast strand in the mold 43 is pulled by a pulling wheel 44 disposed above the mold 43. Preferably, the crystallizer 43 extends into the liquid surface to a depth of more than 100 mm. Preferably, a protective sleeve 45 is arranged on the crystallizer 43.
In some embodiments, the casting device further comprises a lifting device 46, a motor 47 for driving the lifting device 46 and a liquid level controller 42 arranged in the casting furnace 40, wherein the liquid level controller 42 is connected with the motor 47, the crystallizer 43 is arranged at the lifting device 46 and driven by the lifting device 46 to lift; the liquid level controller 42 detects the liquid level in the casting furnace 40 to send out a control signal, the motor 47 receives the control signal to drive the crystallizer 43 at the lifting device 46 to lift, because the liquid level in the casting furnace 40 changes after casting, and the crystallizer 43 needs to be kept at a stable depth of being inserted into the liquid level, the height of the crystallizer 43 is adjusted according to the change of the liquid level to keep the crystallizer 43 not to be inserted into the liquid level too deeply or too shallowly, and at this time, the liquid level controller 42 needs to be arranged to detect the position of the liquid level even if the first diversion through hole is not provided with a switch. In some embodiments, a controller 48 is also included, and the controller 48 is connected to the level controller 42 and the motor 47, although the controller 48 may also be connected to the agitator 12, the feed cart 13, or the temperature probe 60.
The baffle wall 50 is arranged at the bottom in the standing furnace 20 and between the through hole opening of the first flow guide through hole and the through hole opening of the second flow guide through hole 30, when the metal solution flows into the standing furnace 20 from the first flow guide through hole, the sediment deposited at the bottom of the smelting furnace 10 can be brought into the standing furnace 20, the sediment can be well blocked by the baffle wall 50, the sediment is prevented from entering the casting furnace 40, and the molten metal can be guided to turn upwards through the baffle wall 50 to drive the floating slag to float upwards. Preferably, the top end of the baffle wall 50 is higher than the top end of the opening of the first guiding through hole and the top end of the opening of the second guiding through hole 30, so as to block the molten metal and the slag flowing out of the first guiding through hole by the inner baffle wall 50, and the baffle wall 50 needs to have a sufficient height to prevent a part of the molten metal from flowing into the second guiding through hole 30 without being blocked. Preferably, opposite side walls of the baffle wall 50 are respectively connected to the side walls inside the static furnace 20, so as to prevent the molten slag from bypassing the baffle wall 50 and entering the second guiding through hole 30.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. An up-drawing continuous casting furnace, comprising: the furnace body is provided with a smelting furnace of a melting heater, a standing furnace communicated with the smelting furnace through a first flow guide through hole, and a casting furnace communicated with the standing furnace through a second flow guide through hole and provided with a heat preservation heater;
two through hole openings of the first flow guide through hole are respectively positioned at the bottoms of the smelting furnace and the standing furnace;
two through holes of the second flow guide through hole are respectively positioned at the bottoms of the standing furnace and the casting furnace;
the flow blocking wall is arranged at the bottom in the standing furnace and is positioned between the through hole opening of the first flow guide through hole and the through hole opening of the second flow guide through hole.
2. An up-drawing continuous casting furnace according to claim 1, characterized in that: the top end of the flow blocking wall is higher than the top ends of the through hole opening of the first flow guide through hole and the through hole opening of the second flow guide through hole.
3. An up-drawing continuous casting furnace according to claim 1, characterized in that: and two opposite side walls of the flow blocking wall are respectively connected to the side walls in the standing furnace.
4. An up-drawing continuous casting furnace according to any one of claims 1 to 3, wherein: and a switch for controlling the opening and closing of the first flow guide through hole is arranged at the first flow guide through hole.
5. An up-drawing continuous casting furnace according to claim 4, characterized in that: the device also comprises a liquid level controller arranged in the casting furnace.
6. An up-drawing continuous casting furnace according to claim 1, characterized in that: the casting device also comprises a crystallizer arranged above the casting furnace, and the crystallizer extends into the liquid level of the molten metal in the casting furnace.
7. An up-drawing continuous casting furnace according to claim 6, characterized in that: the depth of the crystallizer extending into the liquid level is more than 100 mm.
8. An up-drawing continuous casting furnace according to claim 6, characterized in that: the crystallizer is arranged at the lifting device and driven by the lifting device to lift;
the liquid level controller detects the liquid level in the casting furnace to send out a control signal, and the motor receives the control signal to drive the crystallizer at the lifting device to lift.
9. An up-drawing continuous casting furnace according to claim 6, characterized in that: and the crystallizer is provided with a protective sleeve.
10. An up-drawing continuous casting furnace according to claim 1, characterized in that: the smelting furnace also comprises temperature detectors arranged in the smelting furnace and the casting furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921733666.2U CN210996370U (en) | 2019-10-15 | 2019-10-15 | Up-drawing continuous casting furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921733666.2U CN210996370U (en) | 2019-10-15 | 2019-10-15 | Up-drawing continuous casting furnace |
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| CN210996370U true CN210996370U (en) | 2020-07-14 |
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| CN201921733666.2U Active CN210996370U (en) | 2019-10-15 | 2019-10-15 | Up-drawing continuous casting furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112808973A (en) * | 2020-12-30 | 2021-05-18 | 江苏天宏机械工业有限公司 | Low-pressure casting three-groove type double-chamber furnace |
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2019
- 2019-10-15 CN CN201921733666.2U patent/CN210996370U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112808973A (en) * | 2020-12-30 | 2021-05-18 | 江苏天宏机械工业有限公司 | Low-pressure casting three-groove type double-chamber furnace |
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