CN204718377U - A kind of induction furnace with atmosphere protection cover - Google Patents
A kind of induction furnace with atmosphere protection cover Download PDFInfo
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- CN204718377U CN204718377U CN201520231421.5U CN201520231421U CN204718377U CN 204718377 U CN204718377 U CN 204718377U CN 201520231421 U CN201520231421 U CN 201520231421U CN 204718377 U CN204718377 U CN 204718377U
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- protection cover
- atmosphere protection
- heater
- induction furnace
- atmosphere
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Abstract
The utility model relates to a kind of induction furnace with atmosphere protection cover; Belong to Metal Melting technical field.The induction furnace of described band atmosphere protection cover comprises body of heater (14) and atmosphere protective cover (15); Described atmosphere protection cover (15) is arranged on above the fire door of body of heater (14); Described atmosphere protection cover (15) is provided with outtake tube (3) and air induction conduit (4); Described outtake tube (3) is arranged on the top of atmosphere protection cover (15), and after atmosphere protection cover (15) docks with body of heater (14), outtake tube (3) is communicated with body of heater (14); Described air induction conduit (4) is arranged on the sidewall of atmosphere protection cover (15), and after atmosphere protection cover (15) docks with body of heater (14), air induction conduit (4) is communicated with body of heater (14).The utility model control effectively to atmosphere in metal smelting process burner hearth, significantly reduces burning, improves the degree of purity of metal bath.
Description
Technical field
The utility model relates to a kind of induction furnace with atmosphere protection cover; Belong to Metal Melting technical field.
Background technology
Induction furnace, because firing rate is fast, efficiency is high, is the common equipment of smelting metal.Although vaccum sensitive stove itself has the function of vacuum and controlled atmospher melting, because its cost is expensive, maintenance cost is high and equipment size is unfit to do greatly, cause its use limited.Common induction furnace then in contrast, owing to need not consider the problem of vacuum, makes overall structure greatly simplify.The critical piece of common induction furnace has the parts such as inductor, body of heater, power supply, electric capacity and control system to form, burner hearth is generally open type, directly contact with air, this makes metal easily contact with air in fusion process and produces and be oxidized, and causes metal bath to be polluted.How solving the atmosphere protection of common induction furnace melting metal process, prevent the problems such as burning, is determine that can common induction furnace the key of effective smelting metal.
From the result of literature search, only has the device relating to common induction atmosphere protection on a small quantity at present.As " induction furnace molten steel or iron liquid blowing argon pouring device " that publication number is CN203530361U; adopt the mode directly to induction fire door blowing argon gas; wish that protection molten steel or iron liquid avoid oxidation; but due to not by burner hearth and air insulated; argon gas is diffused rapidly in air; cause argon gas consumption comparatively large, protected effect is also poor.In addition, publication number is " induction furnace molten steel covers blowing argon casting process and device " of CN103451371A, then by the slag charge duricrust of Argon pipe through molten steel surface coverage, stretch into molten steel surface and slag charge solidify between gap, be blown into argon gas protection, the prerequisite of this technique and device is that molten steel surface has coverture, but most metals fusion process does not have coverture, therefore this technique and device scope of experiment limited; And directly argon gas is blown on molten steel surface, easily cause the cold steel in local, argon gas is combined with molten state coverture and coverture emulsification may be caused to emit groove simultaneously.
Summary of the invention
The deficiency that the utility model exists for existing induction furnace, provide a kind of induction furnace with atmosphere protection cover, this induction furnace significantly can reduce burning, improves the degree of purity of metal.
The utility model is achieved through the following technical solutions technical goal.
A kind of induction furnace with atmosphere protection cover of the utility model; The induction furnace of described band atmosphere protection cover comprises body of heater (14) and atmosphere protective cover (15); Described atmosphere protection cover (15) is arranged on above the fire door of body of heater (14); Described atmosphere protection cover (15) is provided with outtake tube (3) and air induction conduit (4); Described outtake tube (3) is arranged on the top of atmosphere protection cover (15), and after atmosphere protection cover (15) docks with body of heater (14), outtake tube (3) is communicated with body of heater (14); Described air induction conduit (4) is arranged on the sidewall of atmosphere protection cover (15), and after atmosphere protection cover (15) docks with body of heater (14), air induction conduit (4) is communicated with body of heater (14).
A kind of induction furnace with atmosphere protection cover of the utility model; After atmosphere protection cover (15) docks with body of heater (14), adopt fire clay (13) sealing at joint.
A kind of induction furnace with atmosphere protection cover of the utility model; Described atmosphere protection cover (15) comprises cover body shell (1) and liner (2); Described cover body shell (1) is nonmagnetic steel shell; Described liner (2) is refractory lining.In the utility model, described nonmagnetic steel shell is the shell that nonmagnetic steel material is processed into; Described refractory lining is the liner that refractory material is made.
A kind of induction furnace with atmosphere protection cover of the utility model; Described air induction conduit (4) is docked with flowmeter (6) by flexible pipe (5), and described flowmeter (6) is docked with the caisson (8) with air valve (7) by flexible pipe (5a).
A kind of induction furnace with atmosphere protection cover of the utility model; Air induction conduit (4) is nonmagnetic steel air induction conduit; Outtake tube (3) is nonmagnetic steel outtake tube.In the utility model, described nonmagnetic steel air induction conduit take nonmagnetic steel as the air induction conduit that Raw material processing becomes, and described nonmagnetic steel outtake tube take nonmagnetic steel as the outtake tube that Raw material processing becomes.
A kind of induction furnace with atmosphere protection cover of the utility model; The length of outtake tube (3) is 10-20cm; The length of air induction conduit (4) is 10-20cm.
A kind of induction furnace with atmosphere protection cover of the utility model; Described body of heater can be the induction furnace of existing band open type burner hearth.
A kind of induction furnace with atmosphere protection cover of the utility model; Caisson (8) is preferably gas bomb.
A kind of induction furnace with atmosphere protection cover of the utility model; Air induction conduit (4) is arranged on the sidewall of atmosphere protection cover (15); after atmosphere protection cover (15) docks with body of heater (14); air inlet is not just to fire door, in smelting process, there will not be the phenomenons such as metal bath local overcooling.
A kind of induction furnace with atmosphere protection cover of the utility model; Outtake tube (3) gas out enters next by flexible pipe and is with the air induction conduit (4) of the induction furnace of atmosphere protection cover and the smelting process participating in this induction furnace.Outtake tube (3) gas out also can through purified treatment to emptying after reaching discharging standards.
Principle and advantage
In the utility model; owing to adopting the atmosphere protection cover (15) of half-sealed; by the position of ingehious design outtake tube (3) with air induction conduit (4), solve the problems such as the protected effect existed in prior art is poor, protective gas is wasted in a large number.Simultaneously also because air inlet is not just to fire door, also just avoid the appearance of the phenomenons such as metal bath local overcooling.
A kind of induction furnace with atmosphere protection cover described in the utility model; Described atmosphere protection cover is made up of shell (1) and liner (2) double-decker, and shell adopts the main purpose of nonmagnetic steel to be support structure effect, and liner adopts refractory material main purpose to be temperature-resistance thermal-insulation effect.The fuel factor that shell, outtake tube (3) and air induction conduit (4) adopt another reason of nonmagnetic steel mainly to reduce or avoid induction furnace electromagnetic field to produce.In addition, the Design of length of outtake tube and air induction conduit is the main cause of 10-20cm is consider that flexible pipe heat-resisting ability is poor, outtake tube and the appropriate length of air induction conduit can avoid conduit and flexible pipe junction temperature too high.In addition, one described in the utility model common induction furnace atmosphere protection closure assembly adopts fire clay sealing protective and induction furnace boiler face junction in use, and main object improves air-tightness.
Gas circulation aspect: a kind of induction furnace with atmosphere protection cover described in the utility model; first be the feature utilizing temperature near stockhole higher than environment temperature; make to form malleation in protective cover, thus make air be difficult to enter protective cover, the atmosphere in protective cover controls by passing into gas.Then, gas circulation style adopts the mode of bottom in and top out, main cause is that cover body temperature of lower is higher, upper temp is lower, pass into from bottom that when gases are heated, they expand, discharged from cover body top by the mode of free convection, thus make discharge the better effects if of atmosphere in air and subsequent control burner hearth early stage.
The utility model is compared with device with prior art, has following advantage:
1) better to control climate in common induction furnace burner hearth, can available protecting metal smelting process.
2) owing to closing common induction furnace crossing, protection gas consumption is significantly reduced.
3) air inlet is not just to fire door, there will not be the phenomenons such as metal bath local overcooling.
4) structure is simple, and cost is lower.
5) easy and simple to handle, easily mount and dismount.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
The structural representation of accompanying drawing 2 atmosphere protection cover designed by the utility model
In Fig. 1,1 is cover body shell, and 2 is cover body liner (referred to as liner), 3 is outtake tube, and 4 is air induction conduit, and 5 is the flexible pipe connecting air induction conduit and flowmeter, 5a is the flexible pipe of connection traffic meter and air valve, and 6 is flowmeter, and 7 is air valve, 8 is caisson, 9 is induction furnace furnace shell, and 10 is inductor, and 11 is inner lining of furnace, 12 is metal bath, and 13 is fire clay; Wherein cover body shell 1, cover body liner 2, outtake tube 3, air induction conduit 4 form atmosphere protection cover 15; After flexible pipe 5, flowmeter 6, flexible pipe 5a, air valve 7, caisson 8 connect successively, forming protective gas provides and control device; Induction furnace furnace shell 9, inductor 10, inner lining of furnace 11 form body of heater 14; After atmosphere protection cover 15 docks with body of heater 14, fire clay 13 is adopted to seal at joint.
In accompanying drawing 2,1 is cover body shell, and 2 is cover body liner (referred to as liner), and 3 is outtake tube, and 4 is air induction conduit, and wherein cover body shell 1, cover body liner 2, outtake tube 3, air induction conduit 4 form atmosphere protection cover 15; As can be seen from Figure 2, outtake tube, air induction conduit are embedded in the entirety be made up of cover body shell and cover body liner, and in industrial applications process, the length that outtake tube, air induction conduit stretch in the cavity be made up of cover body liner and body of heater is unsuitable long; Optimal length is the cover body liner just run through.
Detailed description of the invention
Below in conjunction with structural representation Fig. 1 and embodiment 1, the utility model is described in further detail.
Attachedly Figure 1 shows that a kind of induction furnace with atmosphere protection cover of the utility model, the induction furnace of described band atmosphere protection cover comprises body of heater (14) and atmosphere protective cover (15); Described atmosphere protection cover (15) is arranged on above the fire door of body of heater (14); Described atmosphere protection cover (15) is provided with outtake tube (3) and air induction conduit (4);
Described atmosphere protection cover (15) comprises cover body shell (1) and liner (2); Described cover body shell (1) is nonmagnetic steel shell;
Described outtake tube (3) is arranged on the top of atmosphere protection cover (15), and after atmosphere protection cover (15) docks with body of heater (14), outtake tube (3) is communicated with body of heater (14); Described air induction conduit (4) is arranged on the sidewall of atmosphere protection cover (15), and after atmosphere protection cover (15) docks with body of heater (14), air induction conduit (4) is communicated with body of heater (14).
Described air induction conduit (4) is docked with flowmeter (6) by flexible pipe (5), and described flowmeter (6) is docked with the caisson (8) with air valve (7) by flexible pipe (5a).Described air induction conduit (4) is nonmagnetic steel air induction conduit; Outtake tube (3) is nonmagnetic steel outtake tube.The length of described outtake tube (3) is 10-20cm; The length of described air induction conduit (4) is 10-20cm.
After atmosphere protection cover (15) docks with body of heater (14), adopt fire clay (13) sealing at joint.
Embodiment 1:
By reference to the accompanying drawings 1, a kind of induction furnace with atmosphere protection cover involved by the utility model is tested;
First the Aluminum steel of 50kg is loaded body of heater (14), then atmosphere protection cover (15) is butted up against the fire door place of body of heater (14), adopt fire clay (13) sealing joint, body of heater (14), atmosphere protection cover (15) are formed can only carry out gas exchanges by air inlet and gas outlet; Then by flexible pipe (5) by air induction conduit (4) and flowmeter (6) to connecting, flowmeter (6) is docked with the caisson (8) of air valve (7) by flexible pipe (5a); Before induction furnace heating, 30min opens air valve (7) in advance, passes into argon gas discharge air with the flow of 0.5L/min in stove; Then open induction furnace power control switch to heat, argon flow amount is controlled to carry out protection melting at 0.2L/min to nonmagnetic steel simultaneously; Melting terminates rear closedown induction furnace power control switch and stops heating, continues to pass into argon gas until solidification of molten steel cooling; Finally close gas check valve (7); dismounting protective cover (15) and fire clay (13) are to the nonmagnetic steel sample analysis after melting; find that in steel sample, oxygen content is less than 10ppm; close to document (Xue Zhengliang etc. the deoxidization law of vacuum induction melting Aluminum steel. steel research journal; 2007; 19 (11): 18-20) the vacuum induction melting level reported; and do not find oxide inclusion, show that a kind of common induction furnace atmosphere protection closure assembly of the utility model can carry out available protecting to nonmagnetic steel fusion process.
Claims (7)
1. the induction furnace with atmosphere protection cover; It is characterized in that: the induction furnace of described band atmosphere protection cover comprises body of heater (14) and atmosphere protective cover (15); Described atmosphere protection cover (15) is arranged on above the fire door of body of heater (14); Described atmosphere protection cover (15) is provided with outtake tube (3) and air induction conduit (4); Described outtake tube (3) is arranged on the top of atmosphere protection cover (15), and after atmosphere protection cover (15) docks with body of heater (14), outtake tube (3) is communicated with body of heater (14); Described air induction conduit (4) is arranged on the sidewall of atmosphere protection cover (15), and after atmosphere protection cover (15) docks with body of heater (14), air induction conduit (4) is communicated with body of heater (14).
2. a kind of induction furnace with atmosphere protection cover according to claim 1; It is characterized in that: after atmosphere protection cover (15) docks with body of heater (14), adopt fire clay (13) sealing at joint.
3. a kind of induction furnace with atmosphere protection cover according to claim 1; It is characterized in that: described atmosphere protection cover (15) comprises cover body shell (1) and liner (2); Described cover body shell (1) is nonmagnetic steel shell; Described liner (2) is refractory lining.
4. a kind of induction furnace with atmosphere protection cover according to claim 1; It is characterized in that: described air induction conduit (4) is docked with flowmeter (6) by flexible pipe (5); Described flowmeter (6) is docked with the caisson (8) with air valve (7) by flexible pipe (5a).
5. a kind of induction furnace with atmosphere protection cover according to claim 1; It is characterized in that: air induction conduit (4) is nonmagnetic steel air induction conduit; Outtake tube (3) is nonmagnetic steel outtake tube.
6. a kind of induction furnace with atmosphere protection cover according to claim 1; It is characterized in that: the length of outtake tube (3) is 10-20cm; The length of air induction conduit (4) is 10-20cm.
7. a kind of induction furnace with atmosphere protection cover according to claim 1; It is characterized in that: caisson (8) is gas bomb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520231421.5U CN204718377U (en) | 2015-04-16 | 2015-04-16 | A kind of induction furnace with atmosphere protection cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520231421.5U CN204718377U (en) | 2015-04-16 | 2015-04-16 | A kind of induction furnace with atmosphere protection cover |
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| Publication Number | Publication Date |
|---|---|
| CN204718377U true CN204718377U (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520231421.5U Expired - Fee Related CN204718377U (en) | 2015-04-16 | 2015-04-16 | A kind of induction furnace with atmosphere protection cover |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699412A (en) * | 2016-01-25 | 2016-06-22 | 中南大学 | Testing device and testing method for metal rapid solidification heat flow |
| CN107119249A (en) * | 2017-04-24 | 2017-09-01 | 中南大学 | A kind of control climate metal interface film deposition apparatus and method |
| CN112762711A (en) * | 2020-12-15 | 2021-05-07 | 山西江淮重工有限责任公司 | Melt protection device and melt protection method |
-
2015
- 2015-04-16 CN CN201520231421.5U patent/CN204718377U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699412A (en) * | 2016-01-25 | 2016-06-22 | 中南大学 | Testing device and testing method for metal rapid solidification heat flow |
| CN105699412B (en) * | 2016-01-25 | 2018-06-19 | 中南大学 | A kind of rapid solidification metal heat flux measurement device and test method |
| CN107119249A (en) * | 2017-04-24 | 2017-09-01 | 中南大学 | A kind of control climate metal interface film deposition apparatus and method |
| CN107119249B (en) * | 2017-04-24 | 2019-05-28 | 中南大学 | A kind of control climate metal interface film deposition apparatus and method |
| CN112762711A (en) * | 2020-12-15 | 2021-05-07 | 山西江淮重工有限责任公司 | Melt protection device and melt protection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20160416 |