CN117448573A - Induction vertical reduction furnace and process method thereof - Google Patents
Induction vertical reduction furnace and process method thereof Download PDFInfo
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- CN117448573A CN117448573A CN202311402593.XA CN202311402593A CN117448573A CN 117448573 A CN117448573 A CN 117448573A CN 202311402593 A CN202311402593 A CN 202311402593A CN 117448573 A CN117448573 A CN 117448573A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000008569 process Effects 0.000 title abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 111
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 102
- 239000011777 magnesium Substances 0.000 claims abstract description 102
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 101
- 238000007599 discharging Methods 0.000 claims abstract description 22
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 30
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- 239000000498 cooling water Substances 0.000 claims description 13
- 239000002893 slag Substances 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 3
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- 238000003723 Smelting Methods 0.000 abstract description 10
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
- C22B26/20—Obtaining alkaline earth metals or magnesium
- C22B26/22—Obtaining magnesium
Abstract
The disclosure relates to the technical field of magnesium smelting, in particular to an induction vertical reduction furnace and a process method thereof. The disclosure provides an induction vertical reduction furnace, which comprises a reduction tank body, an inner heating component, an induction heating component and a magnesium collecting component, wherein the reduction tank body is provided with a feeding end and a discharging end, the magnesium collecting component is arranged at the discharging end and is used for condensing magnesium vapor, the inner heating component is partially or completely arranged in the reduction tank body and forms a containing space with the reduction tank body, and the containing space is used for containing a reducing substance; the induction heating component is arranged outside the reduction tank body and is used for heating the reducing substance in the accommodating space. This public intraductal temperature distribution is even, promotes the reaction effect, and can avoid the production of in-process chimney effect and the air entering to jar oxidation of inner chamber of slagging tap, avoided the influence that gravitational field was collected magnesium simultaneously, this public sediment need not change the center tube, can reduce the cost of labor.
Description
Technical Field
The disclosure relates to the technical field of magnesium smelting, in particular to an induction vertical reduction furnace and a process method thereof.
Background
The metal magnesium has good mechanical properties, electromagnetic shielding, shock resistance, shock absorption, high-temperature creep resistance, light weight and other excellent characteristics, and the metal magnesium is a large country of magnesium resources, and the magnesium yield is the first in the world. In the past, magnesium has been mainly used in the aerospace field, and in recent years, the application of magnesium has been expanded to other fields, and has become the third largest metal material next to steel and aluminum, and with the rising demand, an automatic magnesium smelting technical scheme suitable for large-scale magnesium factories is currently required.
The vertical reduction furnace magnesium smelting technology has the characteristics of mechanical automation discharging, labor saving, less land consumption and the like, so the technology is a development trend of future magnesium smelting equipment. However, in the actual production of magnesium smelting in a vertical reduction furnace, many problems still exist, such as insufficient material reaction, high material-magnesium ratio, low magnesium collection rate, difficulty in pulling out a central tube when the central tube is lifted up for each deslagging, short service life of the central tube, frequent replacement, uneven temperature distribution in the tube, large temperature difference, serious chimney effect and large dust in an operation environment.
The patent CN112593095a proposes a vertical magnesium reduction furnace and a process flow thereof, and the patent mentions a vertical reduction furnace and a process flow thereof, wherein the structure of the vertical reduction furnace is divided into an upper reduction tank and a lower cooling tank, the reduction tank adopts a traditional gas furnace heating mode, but the method has great defects in practical application production, the defects of short service life of a tank body and large temperature difference in the tank body are still not solved by adopting the traditional gas furnace heating mode, and meanwhile, the method still adopts an upper magnesium discharge mode, and the gravity field has great influence on magnesium collection.
Patent CN206736328U proposes a reduction pot for smelting magnesium metal, and the patent mentions a vertical reduction pot structure, but the structure still has a central tube structure and magnesium is discharged from the upper part, so that the generation of a chimney effect and the oxidation of air entering into a pot inner cavity in the slag discharging process are avoided, and meanwhile, the magnesium is discharged from the upper part, so that the gravity field has a larger influence on magnesium collection.
Disclosure of Invention
The present disclosure is directed to solving at least one of the technical problems existing in the prior art or related art.
To this end, in a first aspect of the present disclosure, there is provided an induction shaft reducing furnace including a reducing tank body having a feed end and a discharge end, an internal heating assembly provided at the discharge end and for condensing magnesium vapor, an induction heating assembly partially or entirely provided inside the reducing tank body and forming a receiving space with the reducing tank body for placing a reducing substance;
the induction heating component is arranged outside the reduction tank body and is used for heating the reduction object in the accommodating space.
In a possible implementation mode, a heating cavity and an air collecting cavity are arranged inside the reduction tank body, the inner heating component is arranged in the heating cavity, and the magnesium collecting component is connected with the air collecting cavity.
In one possible embodiment, the internal heating assembly includes a heating element, a heat conducting member, and a protection tube, the protection tube being sleeved on the heating element, the heat conducting member being disposed between the heating element and the protection tube.
In one possible embodiment, the induction heating assemblies are provided in a plurality, and the induction heating assemblies are provided in a plurality at intervals along the circumferential direction of the reduction tank body.
In one possible embodiment, the magnesium collection assembly is disposed on a sidewall of the discharge end, and comprises a cooling water jacket, a crystallizer, a connecting tube, a vacuum connecting tube and a sealing cover, wherein the crystallizer is disposed inside the cooling water jacket,
one end of the cooling water jacket is connected with the reduction tank body, the other opposite end covers the sealing cover, one end of the guide pipe is communicated with the inside of the reduction tank body, and the other opposite end is connected with the crystallizer; the vacuum connecting pipe is communicated with the interior of the crystallizer.
In a possible embodiment, the discharge end is provided with a quantitative discharger.
In a possible implementation manner, a U-shaped steam channel is arranged on the outer wall of the inner heating component, an air hole is arranged on the U-shaped steam channel, and the U-shaped steam channel extends to the discharging end to be communicated with the magnesium collecting component.
In a possible implementation manner, a V-shaped steam channel is arranged on the inner wall of the reduction tank body, an air hole is arranged on the V-shaped steam channel, and the V-shaped steam channel extends to the discharging end to be communicated with the magnesium collecting assembly.
In a possible embodiment, the reduction tank body is provided with a feed connection on the side wall of the feed end.
In a second aspect of the present disclosure, there is provided a magnesium reduction process method of an induction shaft reducing furnace, comprising the steps of:
after the reducing materials are added, heating is carried out through an induction heating component and an internal heating component, and vacuum is extracted through a magnesium collecting component;
adjusting the preset temperature and vacuum pressure to enable the reduced materials to react and escape magnesium vapor;
the magnesium vapor enters a magnesium collecting assembly under the action of vacuumizing and is crystallized;
stopping heating and vacuumizing, and opening the magnesium collecting assembly to take out the crystallized magnesium;
and continuously adding the raw materials and simultaneously discharging the reducing slag at the discharging end.
Compared with the prior art, the method at least comprises the following beneficial effects: the reducing tank is provided with the internal heating assembly, the reducing tank body, the induction heating assembly and the magnesium collecting assembly, after the reducing material is added into the reducing tank body, the internal heating assembly and the internal heating assembly are used for heating to form an internal heating environment and an external heating environment, so that the reducing material is reacted more fully, the reaction effect is improved, the temperature distribution in the pipe is uniform, and the temperature difference is small; and the magnesium collection component is arranged at the bottom of the reduction tank body, so that the generation of a chimney effect and the oxidation of air entering into the inner cavity of the reduction tank in the deslagging process are avoided, the influence of a gravity field on magnesium collection is avoided, and the deslagging device disclosed by the invention does not need to replace a central tube, so that the labor cost can be reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments of the present disclosure or the solutions in the prior art, the drawings that are required for the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the exemplary embodiments. The drawings are only for purposes of illustrating exemplary embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the figures. In the accompanying drawings:
FIG. 1 is a schematic view of the overall cross-sectional structure of the present disclosure;
FIG. 2 is a schematic top view of the present disclosure;
FIG. 3 is a schematic diagram of a top view of the second embodiment of the present disclosure.
The correspondence between the reference numerals and the component names in fig. 1 to 3 is: 1-a reduction tank body; 11-a feed end; 12-a discharge end; 13-a heating chamber; 14-an air collection cavity; 15-V-shaped steam channels; 16-a feed interface; 2-an internal heating assembly; 21-a heating element; 22-a heat conducting member; 23-protecting tube; 24-U-shaped steam channels; 3-an induction heating assembly; 42-cooling water jackets; 43-crystallizer; 44-connecting a guide tube; 45-vacuum connecting pipe; 46-sealing cover; 5-quantitative discharger.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, a further description of aspects of the present disclosure will be provided below. It should be noted that, without conflict, the embodiments of the present disclosure and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the disclosure.
The existing vertical reduction furnace magnesium smelting technology has the characteristics of mechanical automatic discharging, labor saving, less land consumption and the like, so the technology is a development trend of future magnesium smelting equipment. However, in the actual production of magnesium smelting in a vertical reduction furnace, many problems still exist, such as insufficient material reaction, high material-magnesium ratio, low magnesium collection rate, difficulty in pulling out a central tube when the central tube is lifted up for each deslagging, short service life of the central tube, frequent replacement, uneven temperature distribution in the tube, large temperature difference, serious chimney effect and large dust in an operation environment.
Based on this, the embodiment of the present disclosure provides an induction shaft reducing furnace.
The induction shaft furnace is described in detail below by way of specific examples:
referring to fig. 1 to 3, in a first aspect of the present disclosure, there is provided an induction shaft type reduction furnace including a reduction tank body 1, an inner heating assembly 2, an induction heating assembly 3, and a magnesium collecting assembly, the reduction tank body 1 having a feed end 11 and a discharge end 12, the magnesium collecting assembly being disposed at the discharge end 12 and being used for condensing magnesium vapor, the inner heating assembly 2 being partially or entirely disposed inside the reduction tank body 1 and forming a receiving space with the reduction tank body 1, the receiving space being used for placing a reducing substance; the induction heating assembly 3 is arranged outside the reduction tank body 1 and is used for heating the reducing substances in the accommodating space.
In the embodiment of the disclosure, the reduction tank body 1 is provided with the heating component 2 inside the container as the raw material, and in different embodiments, the heating component 2 may be partially or completely disposed inside the original tank body 1, and the heating component 2 may be partially disposed inside the original tank body 1 because the heating component 2 is related to the difficulty of setting the connection power connector, the power connector is disposed outside, so that the cost can be reduced, and the heating component may also be completely disposed inside the original tank body 1 by using the heat-resistant material and the device for heat insulation.
Further, the heating component 2 and the reduction tank body 1 form a containing space for the raw materials of the heating reaction, and the induction heating component 3 is further arranged in the region of the containing space to heat outside, so that an internal heating environment and an external heating environment are formed, the reaction effect of the reduction materials is fully improved, the temperature distribution in the pipe is uniform, and the temperature difference is small. It should be noted that, the induction heating component 3 of the present disclosure is installed at the outside of the reduction tank body 1, a heat insulation material is arranged between the induction heating component 3 and the reduction tank body 1, and in a working state, the induction heating component 3 generates heating magnetic lines to heat the reduction tank body 1 and the reduction materials therein, and the temperature rising rate and the temperature are regulated and controlled by controlling current; the reduction material undergoes a reduction reaction under the common heating of the induction heating component 3 and the internal heating component 2 and under the vacuum extraction environment, and magnesium vapor is generated.
Further, the reducing tank body 1 of the present disclosure has a feed end 11 and a discharge end 12, specifically, the top is the feed end, and the bottom is the discharge end, which can be understood that in order to seal the internal space of the reducing tank body 1, a cover plate capable of being opened or sealed, that is, a lower sealing cover and an upper sealing cover are disposed at the feed end 11 and the discharge end 12, the upper part of the upper sealing cover is connected with the internal heating assembly 2, the lower part is connected with the upper port of the reducing tank body 1, and the lower sealing cover is connected with the lower port of the reducing tank body 1. The upper port, the lower sealing cover and the upper sealing cover of the reduction tank body 1 form a closed sealing space in the inner cavity of the reduction tank body, so that the reduction of the reduction material under the vacuum condition is possible.
The magnesium collecting assembly is different from the magnesium outlet at the upper part of the prior art, and is arranged at the bottom of the reduction tank body 1 in the technical scheme of the present disclosure, so that the generation of a chimney effect and the oxidation of air entering into the tank cavity in the slag discharging process are avoided, the influence of a gravity field on the magnesium collection is avoided, the slag discharging of the present disclosure does not need to replace a central tube, and the labor cost can be reduced.
In some embodiments, the reducing tank body 1 is internally provided with a heating cavity 13 and a gas collecting cavity 14, the internal heating assembly 2 is arranged in the heating cavity 13, and the magnesium collecting assembly is connected with the gas collecting cavity 14.
In this embodiment, in order to prevent excessive contact between magnesium vapor and the raw material slag, an air collection cavity 14 is arranged at one side of the discharging end 12 of the reduction tank body 1, and the magnesium collection component is connected with the air collection cavity 14 to extract the magnesium vapor in the air collection cavity 14 for crystallization. It will be appreciated that in use, the portion corresponding to the gas collection chamber 14 is filled with a portion of high temperature reducing slag, which seals against the bottom of the original tank body 1, while the lower portion of the protection tube, the magnesium collection assembly, is at a high temperature to prevent magnesium vapour from condensing before entering the crystallizer 43, thereby reducing the magnesium collection rate of the device.
In some embodiments, the inner heating assembly 2 includes a heating element 21, a heat conducting member 22, and a protection tube 23, the protection tube 23 is sleeved on the heating element 21, and the heat conducting member 22 is disposed between the heating element 21 and the protection tube 23.
In this embodiment, the internal heating assembly 2 of the present disclosure includes a heat supply for heating the reducing material by the heating element 21, and is sleeved on the heating element 21 by the protection tube 23 to avoid direct contact of the reducing material with the heating element 21, and further, is disposed between the heating element 21 and the protection tube 23 via the heat conductive member 22 to ensure heat conductive performance. Specifically, the internal heating component 2 of the present disclosure is connected with the reduction tank body 1 in a combined manner through the upper sealing cover, the heating element 111 is electrified to generate heat, and then the reducing material in the reduction tank body 1 is heated through the heat conducting piece 22 and the protection tube 23; the heating element 21 may be a silicon carbide rod, a graphite rod, or other heating element.
In some embodiments, the induction heating assemblies 3 are provided in plurality, and the induction heating assemblies 3 are arranged at intervals along the circumferential direction of the reduction tank body 1, so that the heating performance is further improved, and the heating of the raw materials is more uniform.
In some embodiments, the magnesium collection assembly is disposed on a side wall of the discharge end 12, and includes a cooling water jacket 42, a crystallizer 43, an introduction pipe 44, a vacuum connection pipe 45 and a sealing cover 46, wherein the crystallizer 43 is disposed inside the cooling water jacket 42, one end of the cooling water jacket 42 is connected with the reduction tank body 1, the other opposite end is covered with the sealing cover 46, one end of the introduction pipe 44 is communicated with the inside of the reduction tank body 1, the opposite end is connected with the crystallizer 43, and the vacuum connection pipe 45 is communicated with the inside of the crystallizer 43.
In this embodiment, the magnesium collecting component is used for collecting magnesium vapor generated by the reduction reaction of the reduction material in the reduction tank body 1 under high temperature and vacuum, so that the magnesium vapor is condensed into solid on the crystallizer 43 for collection, one end of the cooling water jacket 42 is welded with the side wall of the reduction tank body 1 at one side of the discharge opening 12, and the other end is sealed by the sealing cover 46; the magnesium vapor which escapes from the reduction tank body 1 through the reduction tube 23 and the connecting tube 44 enters the crystallizer 43, and the temperature of the magnesium vapor is reduced under the cooling of the cooling water jacket 42, so that the magnesium vapor is condensed into solid magnesium in the crystallizer 43, and the purpose of collecting the magnesium is achieved.
In some embodiments, the discharge end 12 is provided with a quantitative discharger 5. In this embodiment, the quantitative discharger 5 is installed at a port of the discharging end 12, i.e., a bottom port of the reduction pot body 1, the quantitative discharger 5 can provide prevention of the reduction slag from falling down, and the rotation of the quantitative discharger 5 can sequentially and controllably discharge a part of the reduction slag at the time of discharging; the quantitative discharger 5 can realize the operation of discharging while feeding, the material layer can be kept at a certain height, the relative drop of the reducing materials in the reducing tank body 1 during feeding is small, the crushing rate of the reducing material pellets is reduced, meanwhile, the quantitative discharger 5 performs orderly sealing discharge, external air cannot enter the inner cavity of the reducing tank body 1, the inside oxidization of the reducing tank body 1 and the generation of a chimney effect are avoided, the service life of the reducing tank body 1 is prolonged, and the operating environment of the whole induction vertical reducing furnace is optimized.
In some embodiments, a U-shaped steam channel 24 is provided on the outer wall of the inner heating assembly 2, and air holes are provided on the U-shaped steam channel 24, and the U-shaped steam channel 24 extends to the discharge end 12 to communicate with the magnesium collection assembly. The U-shaped steam channel 24 of the present disclosure is welded on the outer side of the protection tube 23, and a plurality of the U-shaped steam channels are uniformly distributed, so that the effective heat transfer area of internal heating is increased while the magnesium steam escape channel is provided, and the reducing material can be heated better.
In some embodiments, a V-shaped steam channel 15 is provided on the inner wall of the reduction tank body 1, and an air hole is provided on the V-shaped steam channel 15, and the V-shaped steam channel 15 extends to the discharge end 12 to communicate with the magnesium collection assembly. The V-shaped vapor channels 15 are welded to the inner wall of the reduction tank body 1 and are uniformly distributed inside the tank body 122, which also increases the effective heat transfer area of the induction heating assembly while providing a magnesium vapor escape channel.
The U-shaped steam channel 24 and the V-shaped steam channel 15 provide channels for magnesium steam, so that the moving resistance of the magnesium steam in the reduction tank body 1 is greatly shortened, and the next collection of the magnesium steam is facilitated; meanwhile, the U-shaped steam channel 24 and the V-shaped steam channel 15 penetrate into the reducing material, so that the effective thickness of the reducing material is reduced, heat conduction is quickened, and the heating efficiency of the reducing material is improved.
In some embodiments, the reduction tank body 1 is provided with a feed port 16 on a side wall of the feed end 11.
In a second aspect of the present disclosure, a magnesium reduction process method of an induction shaft reducing furnace includes the steps of:
after the reducing materials are added, heating is carried out through the induction heating component 3 and the internal heating component 2, and vacuum is extracted through the magnesium collecting component;
adjusting the preset temperature and vacuum pressure to enable the reduced materials to react and escape magnesium vapor;
the magnesium vapor enters a magnesium collecting assembly under the action of vacuumizing and is crystallized;
stopping heating and vacuumizing, and opening the magnesium collecting assembly to take out the crystallized magnesium;
continuously adding the raw materials and simultaneously discharging the reducing slag at the discharging end
After the reducing materials are added through the feeding interface 16 of the reducing tank body 1, the reducing materials are heated through the induction heating component 3 and the internal heating component 2, vacuum in the tank is extracted through the vacuum connecting pipe 45 in the magnesium collecting component, magnesium vapor is reacted and escapes from the reducing materials under the conditions of 1180-1200 ℃ and 5-10Pa vacuum, and the magnesium vapor enters the crystallizer 43 for cooling and crystallizing through the U-shaped steam channel 24, the V-shaped steam channel 15, the inner cavity of the protecting pipe 23 and the connecting pipe 44 under the influence of vacuum and gravity; after reduction for a period of time, after stopping heating and vacuum extraction, opening a sealing cover in the magnesium collecting assembly, taking out crystallized magnesium in the crystallizer 43, then opening a feeding interface 16 and a lower sealing cover, discharging reducing slag through the quantitative discharger 5 while feeding, adding a new crystallizer 43 into the cooling water jacket 42 after completion, and then resealing a port of the magnesium collecting assembly, a feeding port and a lower port of the quantitative discharger 5, and heating and vacuumizing to perform the next working cycle.
In this disclosure, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art as the case may be.
In the description of the present disclosure, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the present disclosure and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present disclosure.
In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean 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 present disclosure. In this specification, schematic representations of the above 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 foregoing is merely a preferred embodiment of the present disclosure, and is not intended to limit the present disclosure, so that various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Claims (10)
1. The induction vertical reduction furnace is characterized by comprising a reduction tank body, an internal heating assembly, an induction heating assembly and a magnesium collecting assembly, wherein the reduction tank body is provided with a feeding end and a discharging end, the magnesium collecting assembly is arranged at the discharging end and is used for condensing magnesium vapor,
the internal heating component is partially or completely arranged in the reduction tank body, and forms an accommodating space with the reduction tank body, wherein the accommodating space is used for accommodating a reducing substance;
the induction heating component is arranged outside the reduction tank body and is used for heating the reduction object in the accommodating space.
2. The induction shaft reducing furnace of claim 1, wherein a heating cavity and an air collecting cavity are arranged inside the reducing tank body, the inner heating component is arranged in the heating cavity, and the magnesium collecting component is connected with the air collecting cavity.
3. The induction shaft reducing furnace of claim 1, wherein the internal heating assembly comprises a heating element, a thermally conductive member and a protective tube, the protective tube being sleeved on the heating element, the thermally conductive member being disposed between the heating element and the protective tube.
4. The induction shaft furnace of claim 1 wherein a plurality of said induction heating assemblies are provided, a plurality of said induction heating assemblies being circumferentially spaced along said reduction pot body.
5. The induction shaft reducing furnace of claim 1, wherein the magnesium collection assembly is disposed on a sidewall of the discharge end and comprises a cooling water jacket, a crystallizer, a connecting tube, a vacuum connecting tube and a sealing cover, the crystallizer is disposed inside the cooling water jacket, wherein,
one end of the cooling water jacket is connected with the reduction tank body, the other opposite end covers the sealing cover, one end of the guide pipe is communicated with the inside of the reduction tank body, and the other opposite end is connected with the crystallizer; the vacuum connecting pipe is communicated with the interior of the crystallizer.
6. The induction shaft furnace of claim 1 wherein the discharge end is provided with a quantitative discharger.
7. The induction shaft reducing furnace of claim 1, wherein a U-shaped steam channel is provided on an outer wall of the inner heating assembly, an air hole is provided on the U-shaped steam channel, and the U-shaped steam channel extends to the discharge end to communicate with the magnesium collecting assembly.
8. The induction shaft reducing furnace of claim 1, wherein a V-shaped steam channel is provided on the inner wall of the reducing tank body, an air hole is provided on the V-shaped steam channel, and the V-shaped steam channel extends to the discharge end and is communicated with the magnesium collecting assembly.
9. The induction shaft reducing furnace of claim 1, wherein the reducing tank body is provided with a feed port on a side wall of the feed end.
10. The magnesium reduction process method of the induction vertical reduction furnace is characterized by comprising the following steps of:
after the reducing materials are added, heating is carried out through an induction heating component and an internal heating component, and vacuum is extracted through a magnesium collecting component;
adjusting the preset temperature and vacuum pressure to enable the reduced materials to react and escape magnesium vapor;
the magnesium vapor enters a magnesium collecting assembly under the action of vacuumizing and is crystallized;
stopping heating and vacuumizing, and opening the magnesium collecting assembly to take out the crystallized magnesium;
and continuously adding the raw materials and simultaneously discharging the reducing slag at the discharging end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311402593.XA CN117448573A (en) | 2023-10-27 | 2023-10-27 | Induction vertical reduction furnace and process method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311402593.XA CN117448573A (en) | 2023-10-27 | 2023-10-27 | Induction vertical reduction furnace and process method thereof |
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| CN117448573A true CN117448573A (en) | 2024-01-26 |
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| CN202311402593.XA Pending CN117448573A (en) | 2023-10-27 | 2023-10-27 | Induction vertical reduction furnace and process method thereof |
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2023
- 2023-10-27 CN CN202311402593.XA patent/CN117448573A/en active Pending
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