CN214349596U - Long-acting anti-blocking protection device for blowing argon at bottom of intermediate frequency furnace and casting ladle - Google Patents
Long-acting anti-blocking protection device for blowing argon at bottom of intermediate frequency furnace and casting ladle Download PDFInfo
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- CN214349596U CN214349596U CN202023188422.6U CN202023188422U CN214349596U CN 214349596 U CN214349596 U CN 214349596U CN 202023188422 U CN202023188422 U CN 202023188422U CN 214349596 U CN214349596 U CN 214349596U
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- supply system
- intermediate frequency
- gas supply
- frequency furnace
- argon gas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The utility model discloses an intermediate frequency furnace, water a ladle and blow long-term stifled protection device that prevents of argon gas, including intermediate frequency furnace/water a ladle, bury the gas diffuser in the bottom of intermediate frequency furnace/water a ladle, lay on the gas diffuser and stamp the dry ventilative material that shakes that has the one deck and the metal liquid contact to act as the work lining, the gas diffuser passes through high-pressurepipe and connects argon gas supply system, still includes protective gas supply system, protective gas supply system and argon gas supply system connect in parallel to communicate with high-pressurepipe, gas diffuser behind change over switch, change over switch is used for switching over gas diffuser and argon gas supply system, protective gas supply system's air supply line. The utility model discloses a replace argon gas with the air and continue to ventilate to intermediate frequency furnace, water the package, can reduce use cost, avoid the air flue to block up, simultaneously, the temperature of the inside of intermediate frequency furnace or the package of watering can be even, reduce because of the harm of thermal stress to furnace wall and package lining, the life of extension furnace wall and package lining.
Description
Technical Field
The utility model relates to a metallurgical casting technical field, concretely relates to middle frequency furnace, water ladle bottom blowing argon long-term anti-blocking protection device.
Background
The argon blowing at the bottom of the intermediate frequency furnace and the casting ladle can play a role in melt purification, is a necessary means for refining molten metal, and is widely applied to the metallurgical casting industry at present. However, the use cost of argon gas is high, and in order to reduce the use cost, the argon gas is stopped being continuously blown to the bottom of the intermediate frequency furnace and the ladle after the molten metal is poured out, so that the use amount of the argon gas can be reduced, but some adverse effects are brought. Firstly, the micro air passage blockage of the air permeable material or the air diffuser at the bottom of the intermediate frequency furnace/casting ladle is easily caused: the bottom of the intermediate frequency furnace or the casting ladle which is just poured out of the molten metal still reaches more than one thousand ℃, the molten metal or slag in a molten state may remain at the bottom, if the gas-permeable material or the gas diffuser is not blown into the furnace continuously, the molten metal or the slag in the molten state can permeate into the micro gas passages, and the gas-permeable material or the gas diffuser can be sintered due to the remaining high temperature at the bottom, so that the micro gas passages are easily blocked, and the subsequent argon blowing failure is caused; secondly, cracking of the furnace lining or the packing is easily caused: after the molten metal is poured out, the bottom temperature of the intermediate frequency furnace or the casting ladle still reaches more than one thousand degrees centigrade, and the contact part of the upper part and the air is often only dozens or hundreds of degrees centigrade, so that a large temperature difference is formed in the accommodating cavity, and the intermediate frequency furnace lining or the casting ladle lining cracks due to thermal stress, so that steel penetration or steel leakage accidents are caused.
Disclosure of Invention
An object of the utility model is to provide an intermediate frequency furnace, water ladle bottom and blow long-term stifled protection device of preventing of argon gas for solve the problem that exists among the above-mentioned prior art.
The utility model adopts the technical scheme as follows: intermediate frequency furnace, water a long-term stifled protection device of preventing of ladle bottom blowing argon gas, including intermediate frequency furnace/water a packet, at intermediate frequency furnace, water the bottom of a packet and bury gas diffuser, lay on gas diffuser and stamp the one deck and contact with the metal liquid and act as the dry gas material that shakes of work lining, gas diffuser passes through high-pressurepipe and connects argon gas supply system, still includes protective gas supply system, protective gas supply system and argon gas supply system are parallelly connected to communicate with high-pressurepipe, gas diffuser behind the change over switch, change over switch is used for switching gas diffuser and argon gas supply system, protective gas supply system's air supply line.
Further, the protective gas supply system comprises an air compressor and an air storage tank.
Further, the gas provided by the shielding gas supply system includes, but is not limited to, air, oxygen, nitrogen, and carbon dioxide.
Further, the change-over switch is an electromagnetic valve.
Furthermore, one set of argon gas supply system and one set of protective gas supply system can be connected with a plurality of intermediate frequency furnaces or casting ladles after passing through a change-over switch.
The beneficial effects of the utility model reside in that:
(1) by adopting the long-acting anti-blocking protection device for blowing argon at the bottom of the intermediate frequency furnace and the casting ladle of the utility model, after pouring the molten metal, the argon gas supply system can be switched to the protective gas supply system through the change-over switch, and the air (oxygen, nitrogen, carbon dioxide and other gases) replaces the argon gas to continuously ventilate the intermediate frequency furnace and the bottom of the casting ladle, so that the use amount of the argon gas can be reduced, and the use cost is reduced;
(2) after the molten metal is poured, the introduced air (oxygen, nitrogen, carbon dioxide and other gases) can make the tiny air passage of the air-permeable material or the air diffuser continuously have air pressure, so that the tiny air passage is prevented from being infiltrated by residual molten metal or molten slag, and the air-permeable material or the air diffuser cannot be over-sintered to block the tiny air passage, so that the tiny air passage can be kept smooth;
(3) after the molten metal is poured, air (oxygen, nitrogen, carbon dioxide and other gases) is continuously blown in until the inner cavity of the intermediate frequency furnace or the casting ladle is cooled, the temperature of the inner cavity of the intermediate frequency furnace or the casting ladle can be uniform, the residual high temperature at the lower part of the intermediate frequency furnace or the casting ladle can be blown upwards by blowing air into the bottom of the intermediate frequency furnace or the casting ladle, the temperature difference of the inner cavity is reduced, the temperature of the inner cavity is balanced, the cracking and peeling of a furnace lining or a ladle lining caused by thermal stress are avoided, and the service life of the furnace lining and the ladle lining is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
To facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the specific embodiments described below.
As shown in fig. 1, the long-acting anti-blocking protection device for blowing argon gas at the bottom of an intermediate frequency furnace and a casting ladle in this embodiment includes an intermediate frequency furnace 1, a casting ladle 2, an argon gas supply system 3, a protective gas supply system 4, a transfer switch 5, a gas diffuser 6 buried at the bottom of the intermediate frequency furnace 1 and the casting ladle 2, a dry vibration gas permeable material 7 which is used as a working lining in contact with metal liquid and is rammed on the gas diffuser 6, the argon gas supply system 3 is connected in parallel with the protective gas supply system 4 and is communicated with the gas diffuser 6 at the bottom of the intermediate frequency furnace 1 and the casting ladle 2 through a high-pressure gas pipe after passing through the transfer switch 5, the transfer switch 5 is used for switching the gas diffuser 6 and the gas supply pipelines of the argon gas supply system 3 and the protective gas supply system 4, and the solenoid valve can be adopted in this embodiment. The protective gas supply system comprises an air compressor and an air storage tank.
By adopting the long-acting anti-blocking protection device for blowing argon at the bottom of the intermediate frequency furnace and the casting ladle of the utility model, after pouring the molten metal, the argon gas supply system can be switched to the protective gas supply system through the change-over switch, and the air replaces the argon gas to continuously ventilate the bottom of the intermediate frequency furnace/the casting ladle, so that the use amount of the argon gas can be reduced; the introduced air can enable the tiny air passages of the air-permeable material or the air diffuser to continuously have air pressure, so that the tiny air passages are prevented from being infiltrated by residual molten metal or molten slag, the air-permeable material or the air diffuser cannot be over-sintered to block the tiny air passages, and the tiny air passages can be kept smooth; through continuously blowing air until the inner cavity of the intermediate frequency furnace or the casting ladle is cooled, the temperature of the inner cavity of the intermediate frequency furnace or the casting ladle can be equalized, and through blowing air into the bottom of the intermediate frequency furnace or the casting ladle, the residual high temperature at the lower part of the intermediate frequency furnace or the casting ladle can be blown upwards, so that the temperature difference of the inner cavity is reduced, the temperature of the inner cavity is equalized, the cracking and the peeling of a furnace lining or a ladle lining caused by thermal stress are avoided, and the service lives of the furnace lining and the ladle lining are prolonged.
Many modifications and other embodiments of the invention will come to mind to one skilled in the art to which this invention pertains having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Therefore, it is to be understood that the inventions are not to be limited to the specific embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the appended claims. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (5)
1. Intermediate frequency furnace, water a long-term stifled protection device of preventing of ladle bottom blowing argon gas, including intermediate frequency furnace, water a ladle, at intermediate frequency furnace, water the bottom of ladle and bury and have gas diffuser, lay on gas diffuser and stamp and have one deck and the dry gas permeable material that shakes that the metal liquid contact acted as the work lining, gas diffuser passes through high-pressurepipe and connects argon gas supply system, its characterized in that: still include the protective gas supply system, the protective gas supply system is parallelly connected with argon gas supply system to communicate with high-pressurepipe, gas diffuser behind the change over switch, change over switch is used for switching over gas diffuser and argon gas supply system, protective gas supply system's air supply line.
2. The long-acting anti-blocking protection device for blowing argon gas at the bottom of an intermediate frequency furnace or a casting ladle as claimed in claim 1, is characterized in that: the protective gas supply system comprises an air compressor and a gas storage tank.
3. The long-acting anti-blocking protection device for blowing argon gas at the bottom of an intermediate frequency furnace or a casting ladle as claimed in claim 1, is characterized in that: the gas provided by the protective gas supply system comprises air, oxygen, nitrogen or carbon dioxide.
4. The long-acting anti-blocking protection device for blowing argon gas at the bottom of an intermediate frequency furnace or a casting ladle as claimed in claim 1, is characterized in that: the change-over switch is an electromagnetic valve.
5. The long-acting anti-blocking protection device for blowing argon gas at the bottom of the intermediate frequency furnace and the casting ladle of any one of claims 1 to 4, is characterized in that: and the argon gas supply system and the protective gas supply system are connected with a plurality of intermediate frequency furnaces or casting ladles through change-over switches.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023188422.6U CN214349596U (en) | 2020-12-26 | 2020-12-26 | Long-acting anti-blocking protection device for blowing argon at bottom of intermediate frequency furnace and casting ladle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023188422.6U CN214349596U (en) | 2020-12-26 | 2020-12-26 | Long-acting anti-blocking protection device for blowing argon at bottom of intermediate frequency furnace and casting ladle |
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| CN214349596U true CN214349596U (en) | 2021-10-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114251944A (en) * | 2021-11-29 | 2022-03-29 | 长沙新立硅材料科技有限公司 | Intermediate frequency furnace lining structure using graphite crucible and manufacturing method thereof |
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2020
- 2020-12-26 CN CN202023188422.6U patent/CN214349596U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114251944A (en) * | 2021-11-29 | 2022-03-29 | 长沙新立硅材料科技有限公司 | Intermediate frequency furnace lining structure using graphite crucible and manufacturing method thereof |
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