CN207936754U - A kind of single-screw embeds hot magnesium vacuum reduction stove in Exciting-simulator system electromagnetic induction - Google Patents
A kind of single-screw embeds hot magnesium vacuum reduction stove in Exciting-simulator system electromagnetic induction Download PDFInfo
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- CN207936754U CN207936754U CN201820044147.4U CN201820044147U CN207936754U CN 207936754 U CN207936754 U CN 207936754U CN 201820044147 U CN201820044147 U CN 201820044147U CN 207936754 U CN207936754 U CN 207936754U
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- excitation coil
- furnace body
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- electromagnetic induction
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Abstract
The utility model is related to a kind of single-screws to embed hot magnesium vacuum reduction stove in Exciting-simulator system electromagnetic induction, including furnace body, equipped with multiple cylindrical shape charging baskets in honeycomb like arrangement in furnace body, single excitation coil is embedded in basket wall, excitation coil is introduced by basket wall bottom, spiral, from Base top contact, the excitation coil of multiple charging baskets is after series connection, it leads to outside stove through the insulation seal device on furnace body and is connected with supply unit, electric energy contactlessly passes to charging basket and carrys out heating reaction furnace material, and heater entirety consistent heat generation is not in localized hyperthermia and damages.Mainly solves the problems, such as existing electric heating internal vacuum reduction stove there are excitation coil loss ratios that more serious, the big and required reactive compensation capacitor of leakage inductance is of high cost, the utility model is designed reasonably can adjust the distribution in reduction furnace temperature field, and heat transfer efficiency is fast；It is mainly used for the production of the high-vapor-pressure metals thermal reduction such as magnesium, lithium, strontium, calcium.
Description
Technical field
The utility model is related to vacuum metallurgy equipment technical field, specially a kind of single-screw embeds Exciting-simulator system electromagnetic induction
Interior hot magnesium vacuum reduction stove, can be used for the equipment that thermal reduction prepares the high-vapor-pressure metals such as magnesium, lithium, strontium, calcium.
Background technology
The high-vapor-pressure metals such as magnesium, lithium, strontium, calcium can under vacuum be prepared using thermal reduction.At present in metal
In magnesium production field, widely used reduction apparatus is to directly heat the reductive jar made of heat-resisting alloy using combustion gas etc..This
Method is limited by reduction jar structure and material property, and reaction temperature is low, heat transfer is slow, high energy consumption, and due to the oxidation of reductive jar
Equal loss largely consumes expensive nichrome.
The problems such as electric internal heat type vacuum reduction stove can overcome the high energy consumption of external-heat reduction furnace and reductive jar to consume.In electricity
The problem of hot type vacuum reduction stove focuses on solving is the speed for improving heat transfer in furnace charge, improves production efficiency.As practicality is new
A kind of sensing heating reduction magnesium smelting device is disclosed in type patent ZL 96247592.0.In the program reduction tank wall on around
Equipped with induction coil, it is connected with induction power supply by induction coil and is carried out to material electromagnetic induction heating.Publication number CN
The patent application of 105018730A discloses a kind of electromagnetic induction internal heat type magnesium metal vacuum reduction stove.It is set in furnace body in the program
It is equipped with rectangle iron core, a long side passes through the central passage of charging basket, another a line to be wound with copper coil, pass through drawing for copper coil
Outlet is connect with power supply carries out electromagnetic induction heating to material, but all has that excitation coil loss ratio is more serious, and leakage inductance is big, institute
Need the problem that reactive compensation capacitor is of high cost.
Utility model content
Purpose of the utility model is to solve existing electric heating internal vacuum reduction stove, there are excitation coil losses
Bigger than more serious, leakage inductance and required reactive compensation capacitor technical problem of high cost provides a kind of embedded Exciting-simulator system of single-screw
Hot magnesium vacuum reduction stove in electromagnetic induction.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of single-screw embeds hot magnesium vacuum reduction stove in Exciting-simulator system electromagnetic induction, including upper furnace shell, lower bell, charging basket,
Platform, supporting rack, crystallisation chamber and cooling device, the upper furnace shell lid is closed forms furnace body in lower bell, and plateau levels are arranged in stove
Body bottom, and supported and fixed by supporting rack, several charging baskets are arranged in honeycomb like on platform, and in furnace body, and make number
The excitation coil of a charging basket is connected, and crystallisation chamber is connected by metallic vapour channel at the top of furnace body, and being equipped with essence on crystallisation chamber top takes out
Mouthful, it is equipped with thick pumping mouth in bottom of furnace body, and furnace body both sides are located at crystallisation chamber, cooling device is located at the outer wall of crystallisation chamber.
Further, the inner wall in the furnace body and metallic vapour channel is equipped with insulating layer, and there are gap between charging basket,
Facilitate loading and unloading
Further, the charging basket is made of basket, excitation coil, metal baffle and steel band, in the outer wall of the basket
A single helical groove is offered, a single-screw magnesium steam overflow seam is offered in the outer wall of basket, and be arranged in parallel with slot, swashs
It encourages coil to be located in slot, insulating layer is equipped between excitation coil and cell wall, metal baffle is located at outside slot, and in metal baffle
Several stomatas are offered, and metal baffle or more both sides is made to carry out flanging outward, steel band is close to setting on the outside of flanging, and makes
Steel band is welded on the wall of basket on both sides up and down.Basket surface cut be parallel to excitation coil and interlaced arrangement magnesium steam overflow
Stream seam, increases the resistance of charging basket, reduces calorific value, and is conducive to the magnesium steam diffusion that reduction obtains, and meets charge-temperature
The equally distributed needs in field.
Further, the cross-sectional area of conductor of the excitation coil is rectangle, and is single excitation coil.
Further, the insulating layer is ceramic material layer.Ceramic insulating material is passed through with natural or synthetic compound
A kind of inorganic non-metallic material made of forming and high temperature sintering is that rigidity is best in engineering material, the highest material of hardness,
Generally there is high fusing point (mostly at 2000 DEG C or more), and there is fabulous chemical stability at high temperature；It is ceramic or good
Good heat-barrier material；The linear expansion coefficient of ceramics is lower than metal simultaneously, and when the temperature varies, ceramics have good size
Stability.
Further, the cooling device is water-cooled jacket.
When work, the reduction furnace charge of pelletizing shape is seated in charging basket, is directly in contact with charging basket.It is applied to by supply unit
High-frequency alternating current on excitation coil generates the magnetic field of alternation in charging basket.Thus induced current is generated in metal charging basket.
The heat that the electric current inducted in charging basket generates heats furnace charge by conducting and radiating two ways.Pass through this electromagnetism sense
Answer process, electric energy contactlessly passes to charging basket and carrys out heating reaction furnace material, heater (charging basket) entirety consistent heat generation, and by thicker
Heat-resisting steel sheet and plate be made, heat conduction is rapid, and heater self-temperature is evenly distributed, and is not in localized hyperthermia and damages.It restored
Cheng Zhong is evacuated in thick vacuumizing phase using thick mouth of taking out, due to slightly taking out mouth setting in the bottom of furnace body, in furnace chamber gas
Floating dust will not be deposited in crystallisation chamber and the purity of Crystalline Magnesium is made to reduce.When reaching higher vacuum degree, gas flow at this time
Very low, closing is thick to take out mouth, is vacuumized from the essence pumping mouth by crystallisation chamber.Entire heater is in inside vacuum environment, by
Power very little, and since the protection of vacuum is not oxidizable.
Compared with prior art, the utility model advantage specific as follows：
1, insulating layer, casing temperature are only slightly higher than environment temperature between furnace shell and the reducing material of high temperature.Therefore, furnace body
It need to be manufactured using ordinary carbon steel.
2, heater (charging basket) is (to be restored tank body material by certain thickness heat-resisting steel sheet and plate compared with technique or 310S is stainless
Steel) made of tubular article, structural strength is big, load and unload charge process in be hardly damaged.
3, excitation coil is embedded in inside charging basket, and Thermal Conductivity Ceramics Used insulation material is filled between excitation coil and charging basket wall
Material, coupling efficiency is high, and heat is gathered in inside calandria, and outside heat dissipates minimum so that heater (charging basket) is whole uniformly
Fever, and charging basket is made of thicker heat-resisting steel sheet and plate, heat conduction is rapid, and heater self-temperature is evenly distributed, and is not in part
High temperature and damage.Entire heater is in inside vacuum environment, stress very little, and since the protection of vacuum is not oxidizable.Therefore,
Heating temperature can be higher than Pidgeon process in stove, greatly improve reduction reaction speed and furnace charge utilization rate.
4, reduction furnace list stove can be in that honeycomb like arranges multiple reductive jar charging baskets (being made of heat-resistant steel) so that have enough dissipate
Hot area and shorter heat transfer distances, to ensure that the speed of the heat transfer in larger charging basket volume will not reduce, and single stove
Bigger, the charging basket of arrangement is more, reduces relative surface area in this way, improves the production capacity of single stove, and the thermal efficiency is high.
5, charging basket is placed on flat by the fixed heat-resisting steel (restoring tank body material or 310S stainless steels compared with technique) of holder
On platform, and there are gaps between charging basket and insulating layer, facilitate loading and unloading.
6, power supply is applied on excitation coil for electric installation, supply voltage is high, and feeding electrode electric current is small.Feed electricity simultaneously
Pole is not contacted with heater, thus without using water cooled electrode, furnace structure is simple, and thermal loss is small.
7, mouth is taken out due to the use of individually thick, and thick mouth of taking out is located at bottom of furnace body, the floating dust in furnace chamber gas will not sink
It accumulates within the condenser, thus Crystalline Magnesium purity is high.
8, excitation coil is made of the molybdenum or pure iron of low-resistivity heating resisting metal, because its fusing point is high, and resistance to oxidation；Swash
It encourages coil-conductor section and is set as rectangle, be that can improve heat transfer effect because cross-sectional area of conductor is big for the relative surface area of rectangle
Rate.
9, a kind of scheme that charging basket buries excitation coil is that a single helical groove is provided on charging basket outer wall, and excitation is equipped in slot
Coil is filled with Thermal Conductivity Ceramics Used insulating materials between slot and excitation coil, a thin metal baffle, metal are placed outside slot
Several stomatas are offered on baffle, are efficiently reduced when temperature changes, due to metal material and ceramic material
Expansion rate it is inconsistent and ceramic material is caused to relax with charging basket wall, to influence heat transference efficiency, above and below metal baffle
Side respectively carries out flanging, is close to flanging and is placed with a steel band, and steel band both sides are welded on by weld seam on charging basket wall, forms electric current and closes
It is combined diameter, leakage inductance can be reduced in this way.
10, by the way that lower bell is integrally taken off realization, charging is applied directly in charging basket, unloads for the charging or discharging of reduction furnace
Material directly topples over charging basket, and the loading, unloading material mode of reduction furnace is very convenient, quick.
The utility model is designed reasonably, can adjust the distribution in reduction furnace temperature field, and heat transfer efficiency is fast；Be mainly used for magnesium,
The high-vapor-pressure metals thermal reduction such as lithium, strontium, calcium produces.
Description of the drawings
Fig. 1 is the overall structure diagrammatic cross-section of the utility model；
Fig. 2 is charging basket distribution map in furnace body；
Fig. 3 is the diagrammatic cross-section of charging basket wall trench；
Fig. 4 is charging basket surface local slot arrangement schematic diagram.
Specific implementation mode
Specific embodiment of the utility model is described in detail below in conjunction with the accompanying drawings.
As shown in Figs 1-4, a kind of single-screw in the present embodiment embeds hot magnesium vacuum reduction stove in Exciting-simulator system electromagnetic induction,
Including upper furnace shell 7, lower bell 1, charging basket 5, platform 13, supporting rack 14, crystallisation chamber 11 and water-cooled jacket 12, the charging basket 5 is by basket
501, excitation coil 502, metal baffle 503 and steel band 504 form, and basket 501 is made of heat resisting steel, in the basket 501
Outer wall offer a single helical groove 505, offer single-screw magnesium steam overflow seam 509 in the outer wall of basket 501, and
It is arranged in parallel with slot 505, excitation coil 502 is located in slot 505, and the cross-sectional area of conductor of excitation coil 502 is rectangle, and is swashed for single
Encourage coil, excitation coil is entered by charging basket wall bottom, spiral, from Base top contact, excitation coil 502 and 505 wall of slot it
Between be equipped with ceramic material layer 506, metal baffle 503 is located at outside slot 505, and several stomatas are offered in metal baffle 503
507, and about 503 both sides of metal baffle is made to carry out flanging outward, steel band 504 is close to setting on the outside of flanging, and makes steel band 504
Upper and lower both sides are welded on the wall of basket 501, and the reduction furnace charge 4 of pelletizing shape is seated in charging basket 5, is directly connected with charging basket wall
It touches.The lid of upper furnace shell 7 is closed forms furnace body on lower bell 1, and all ensures its sealing, and furnace body is made of ordinary carbon steel,
Platform 13 is horizontally set on bottom of furnace body, and is supported and fixed by supporting rack 14, and 7 charging baskets 5 are arranged in platform 13 in honeycomb like
On, and in the furnace body, and after so that the excitation coil 502 of 7 charging baskets 5 is connected stove is led to through the insulation seal device on furnace body
It is connected outside with supply unit, crystallisation chamber 11 is connected by metallic vapour channel 9 at the top of furnace body, being equipped with essence on 11 top of crystallisation chamber takes out
Mouth 10 is equipped with thick pumping mouth 3 in bottom of furnace body, and is located at furnace body both sides with crystallisation chamber 11, and water-cooled jacket 12 is located at crystallisation chamber 11
Outer wall.Inner wall in the furnace body and metallic vapour channel 9 is equipped with insulating layer 8, and there are gaps 2 between charging basket 5.
Above example is merely intended for describing the technical solutions of the present application, but not for limiting the present application, although with reference to the utility model reality
Example is applied to be described in detail, it will be understood by those of ordinary skill in the art that, the technical solution of the utility model is repaiied
Change or equivalent replacement should all cover the utility model without departure from the spirit and scope of the technical solution of the utility model
Claims in.
Claims (6)
1. a kind of single-screw embeds hot magnesium vacuum reduction stove in Exciting-simulator system electromagnetic induction, it is characterised in that：Including upper furnace shell (7),
Lower bell (1), charging basket (5), platform (13), supporting rack (14), crystallisation chamber (11) and cooling device (12), the upper furnace shell (7)
Lid is closed forms furnace body on lower bell (1), and platform (13) is horizontally set on bottom of furnace body, and is supported admittedly by supporting rack (14)
Fixed, several charging baskets (5) are arranged in honeycomb like on platform (13), and in furnace body, and make the excitation coil of several charging baskets (5)
(502) it connects, crystallisation chamber (11) is connected by metallic vapour channel (9) at the top of furnace body, being equipped with essence on crystallisation chamber (11) top takes out
Mouth (10) is equipped with thick pumping mouth (3) in bottom of furnace body, and is located at furnace body both sides with crystallisation chamber (11), and cooling device (12) is set
Outer wall in crystallisation chamber (11).
2. a kind of single-screw according to claim 1 embeds hot magnesium vacuum reduction stove in Exciting-simulator system electromagnetic induction, feature
It is：Inner wall in the furnace body and metallic vapour channel (9) is equipped with insulating layer (8), and there are gaps between charging basket (5)
(2)。
3. a kind of single-screw according to claim 2 embeds hot magnesium vacuum reduction stove in Exciting-simulator system electromagnetic induction, feature
It is：The charging basket (5) is made of basket (501), excitation coil (502), metal baffle (503) and steel band (504), described
The outer wall of basket (501) offers a single helical groove (505), and offering a single-screw magnesium in the outer wall of basket (501) steams
(509) are stitched in vapour overflow, and are arranged in parallel with slot (505), and excitation coil (502) is located in slot (505), in excitation coil (502)
Insulating layer (506) is equipped between slot (505) wall, metal baffle (503) is located at slot (505) outside, and in metal baffle (503)
Several stomatas (507) are offered, and makes metal baffle (503) both sides carries out flanging outward up and down, steel band (504) is close to roll over
Setting on the outside of side, and make steel band (504) both sides are welded on the wall of basket (501) up and down.
4. a kind of single-screw according to claim 3 embeds hot magnesium vacuum reduction stove in Exciting-simulator system electromagnetic induction, feature
It is：The cross-sectional area of conductor of the excitation coil (502) is rectangle, and is single excitation coil.
5. a kind of single-screw according to claim 4 embeds hot magnesium vacuum reduction stove in Exciting-simulator system electromagnetic induction, feature
It is：The insulating layer (506) is ceramic material layer.
6. embedding hot magnesium vacuum reduction in Exciting-simulator system electromagnetic induction according to a kind of single-screw of claim 1-5 any one of them
Stove, it is characterised in that：The cooling device (12) is water-cooled jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820044147.4U CN207936754U (en) | 2018-01-11 | 2018-01-11 | A kind of single-screw embeds hot magnesium vacuum reduction stove in Exciting-simulator system electromagnetic induction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820044147.4U CN207936754U (en) | 2018-01-11 | 2018-01-11 | A kind of single-screw embeds hot magnesium vacuum reduction stove in Exciting-simulator system electromagnetic induction |
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| Publication Number | Publication Date |
|---|---|
| CN207936754U true CN207936754U (en) | 2018-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820044147.4U Expired - Fee Related CN207936754U (en) | 2018-01-11 | 2018-01-11 | A kind of single-screw embeds hot magnesium vacuum reduction stove in Exciting-simulator system electromagnetic induction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990713A (en) * | 2018-01-11 | 2018-05-04 | 山西大学 | A kind of single-screw embeds hot magnesium vacuum reduction stove in Exciting-simulator system electromagnetic induction |
-
2018
- 2018-01-11 CN CN201820044147.4U patent/CN207936754U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990713A (en) * | 2018-01-11 | 2018-05-04 | 山西大学 | A kind of single-screw embeds hot magnesium vacuum reduction stove in Exciting-simulator system electromagnetic induction |
| CN107990713B (en) * | 2018-01-11 | 2024-03-12 | 山西大学 | Single-screw embedded excitation type electromagnetic induction internal heat magnesium vacuum reduction furnace |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181002 Termination date: 20220111 |
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| CF01 | Termination of patent right due to non-payment of annual fee |