CN104419831A - Microwave heating type metal melting furnace - Google Patents
Microwave heating type metal melting furnace Download PDFInfo
- Publication number
- CN104419831A CN104419831A CN201410452786.0A CN201410452786A CN104419831A CN 104419831 A CN104419831 A CN 104419831A CN 201410452786 A CN201410452786 A CN 201410452786A CN 104419831 A CN104419831 A CN 104419831A
- Authority
- CN
- China
- Prior art keywords
- crucible
- melting furnace
- metal
- hertzian wave
- heating type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/14—Arrangements of heating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/10—Crucibles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B2014/0868—Magnetic shields
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/10—Crucibles
- F27B2014/104—Crucible linings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0001—Heating elements or systems
- F27D99/0006—Electric heating elements or system
- F27D2099/0028—Microwave heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Details (AREA)
- Constitution Of High-Frequency Heating (AREA)
Abstract
The present invention relates to a metal melting furnace using an electromagnetic wave heat generation method, and more specifically, to a metal melting furnace using an electromagnetic wave heat generation method which is capable of manufacturing molten metal while minimizing the use of electricity by forming the molten metal by melting an inside ingot since a crucible generates heat by itself by inserting the crucible including silicon carbide into a metal chamber, and emitting an electromagnetic wave to the metal chamber. According to the present invention, the metal melting furnace using an electromagnetic wave heat generation method has an effect for efficiently using space by having space for allowing an electromagnetic wave to flow, and not having a separate combustion room for heating; having the high heat efficiency due to direct heat transfer since the crucible generates heat by itself, and the crucible is insulated by an insulation material; and reducing product manufacture costs and facility maintenance expenses due to high energy efficiency since the ingot is melted by about 20% of energy of a conventional heating means.
Description
Technical field
The present invention relates to hertzian wave heating type metal melting furnace, in more detail, relate to following hertzian wave heating type metal melting furnace, namely, the crucible comprising silicon carbide is put into metal chamber, and to described metal chamber radiated electromagnetic wave, make crucible self-heating and make inner ingot bar fusing form fused solution, thus can make that electricity usage is minimized makes fused solution simultaneously.
Background technology
As a rule, metal melting furnace is formed as leading to hyperthermia and is melted with the starting material (ingot bar: ingot) that prescribed level is shaping by melting object metal and make fused solution, and carries out keeping to it.
Metal melting furnace in the past comprises melting portion and insulation portion, wherein, the inwall in melting portion is formed with thermal insulation material, the crucible for inserting ingot bar is had at the intermediate formation of described thermal insulation material, be formed with the heating unit for heating ingot bar in the upper end of described crucible or circumference, insulation portion is formed in the mode enabling to be melted in the fused solution in the crucible in described melting portion and flow into.
The heating unit adopted in the melting portion of described metal melting furnace mainly uses gas-cooker or is formed as high frequency type well heater, resistance type heater etc.
When heating with described heating unit, needing to apply to make the temperature of crucible inside than the heat of the melt temperature at least high 20 ~ 30% of ingot bar, when using gas-cooker, needing between heating unit and ingot bar, keep certain space.
As mentioned above, make metal melting and the fused solution made in melting portion is sent to insulation portion continuously, and in insulation portion, maintain the temperature of fused solution constantly, while be sent to forming machine to carry out die casting or casting and moulding product.
About the technology of described metal melting furnace in the past, No. 1-215919, Japanese Unexamined Patent Publication, No. 2-93012, Japanese Unexamined Patent Publication, No. 0598920th, Korean Patent office registered patent publication, have in No. 1100412 etc. disclosed in.
Summary of the invention
But there is following problem in metal melting furnace in the past.
(1) needing the combustion space for heating, therefore needing the crucible larger than the space holding ingot bar or peripheral space.
(2) cause due to peripheral space thermo-efficiency low, the heat of more than institute's heat requirement can be consumed, therefore will use the thick thermal insulation material for thermal insulation.
(3) when using high frequency type well heater or resistance type heater for supplying high calorie, causing because power consumption is high facility standing charges high, and causing products production unit price also high.
In order to solve the above problems, metal melting furnace of the present invention is as the general metal melting furnace comprising melting portion and insulation portion, described melting portion comprises metal chamber and reacting part, wherein, the side of described metal chamber is provided with the waveguide be connected with hertzian wave vibrator, and described reacting part is formed with crucible described in the crucible that surrounded by thermal insulation material is formed in described metal chamber isolator bosom by the mode forming spatial portion.
According to hertzian wave heating type metal melting furnace of the present invention, following effect can be produced.
(1) there is no need for the independently combustion space of heating, as long as have for the electromagnetic spatial portion that flows, therefore, it is possible to usage space effectively.
(2) crucible self-heating and it is adiabatic by thermal insulation material, therefore, heat trnasfer directly makes thermo-efficiency very high.
(3) even if use the energy of about about 20% of the energy of heating unit in the past also can make ingot bar melting, thus make energy efficiency very high, make required products production unit price and facility maintenance costs considerably less.
Accompanying drawing explanation
Fig. 1 is the schematic sectional view of the hertzian wave heating type metal melting furnace formed by the preferred embodiments of the present invention.
Fig. 2 is the sectional block diagram of the hertzian wave heating type metal melting furnace formed by the preferred embodiments of the present invention.
Fig. 3 is the floor map of metal melting furnace in the past.
Description of reference numerals
1: metal melting furnace 10: melting portion
20: insulation portion 100: metal chamber
101: waveguide 110: reacting part
112: thermal insulator 113: spatial portion
115: crucible 120: hertzian wave vibrator
Embodiment
The present invention is the general metal melting furnace 1 as comprising melting portion 10 and insulation portion 20, described melting portion 10 comprises metal chamber 100 and reacting part 110, wherein, the side of described metal chamber 100 is provided with the waveguide 101 be connected with hertzian wave vibrator 120, described reacting part 110 is formed with the crucible 115 surrounded with thermal insulator 112, and described crucible 115 is formed in the bosom of described metal chamber 100 isolator by the mode forming spatial portion 113.
Described melting portion 10 and insulation portion 20 are surrounded by thermal insulation material on the whole and are formed side by side, thus are formed in the mode making the fused solution be melted in the crucible 115 in melting portion 10 can flow into insulation portion 20.
Described melting portion 10 is formed with metal chamber 100, is formed with reacting part 110 in inside in the mode of isolating the portion 113 that has living space.
Be connected to form waveguide 101 in the side of described metal chamber 100 or lower end, described waveguide 101 can be formed as the metal tube of tetragon or circle.
Hertzian wave vibrator 120 is formed at the end of described waveguide 101, described hertzian wave vibrator 120 is general devices that the special electron tube being called as transit time tube (klystron) as utilization generates electromagnetic waves, and can provide the multiple devices such as magnetron (magnetron).
Formed to the mode of the hertzian wave (microwave) of the frequency of a few gigahertz (GHZ) (GHz) with a few megahertz (MHz) that can vibrate before described hertzian wave vibrator 120.Preferred use can with the electromagnetic hertzian wave vibrator 120 of the hunting of frequency of 800MHz ~ 3GHz.
Described waveguide 101 is the hollow type pipes be made of metal, be with by the hertzian wave produced by hertzian wave vibrator 120 inwall continuous reflection carry out propagating the general tetragon that formed of mode or the metal tube of circle.
The metal chamber 100 being connected to form described waveguide 101 is formed with airtight space, and is formed with the spatial portion 113 of internally isolating predetermined space with reacting part 110.
Described spatial portion 113 is to be diffused into the circumference of reacting part 110 equably and the mode propagating into whole of the outer wall of crucible 115 is formed by the electromagnetism propagated by waveguide 101 wave energy.
The side of described metal chamber 100 is formed as being communicated with insulation portion 20, and can be connected to form crucible 115.
In described reacting part 110, the crucible 115 being formed with downward concave end is inserted in the inside of the thermal insulator 112 open in upper end.
Described thermal insulator 112 is made up of thermal insulation material, ceramic fiber and the ceramic block etc. that thermotolerance is strong, and the heat being formed as producing in crucible 115 can not flow out to outside.
Although described crucible 115 can be formed with variform, crucible 115 is formed as intermediate formation has depressed part 115a and the shape of upper end opening.
The side, lower end of described crucible 115 can be communicated with insulation portion 20, flow into insulation portion 20 to enable the fused solution of melting.
Silicon carbide (SiC), graphite (graphite) and loess are mixed type by described crucible 115, wherein, mix the silicon carbide of 40 % by weight, the graphite of 30 % by weight and the loess of 30 % by weight and carry out shaping in High Temperature High Pressure mode, loess can be changed by pottery (ceramic)
The silicon carbide comprised in described crucible 115 % by weight for more than limited number value, the fragility of crucible 115 can uprise, when the silicon carbide comprised % by weight for below limited number value, thermal value can become not enough.But, the deviation of 1 ~ 9 about % by weight is for the object not too large problem reaching the present application.
The graphite comprised in described crucible 115 % by weight for more than limited number value or following, not special change, but, % by weight of other material can be affected, therefore, the applicable numerical value with restriction of the present invention.
The loess comprised in described crucible 115 % by weight for more than limited number value, the fragility of crucible 115 can uprise, and thermal value also can become not enough, when comprise % by weight is below limited number value, then be not easy shaping, thermal value also can reduce.But, the deviation of 1 ~ 9 about % by weight is for the object not too large problem reaching the present application.
Described graphite is the material strengthened carbon fiber and heat-treat, and can improve the weather resistance of crucible 115, and loess has strong thermotolerance, and silicon carbide reacts hertzian wave (pole ultrashort wave or microwave).
The silicon molecule of described silicon carbide vibrates hertzian wave reaction, thus produce heat-flash continuously with loess (pottery) molecular friction, this heat is completely cut off by thermal insulator 112 and only rests on inside, thus can make the ingot bar melting of the inside being included in crucible 115.
Below, the running of the hertzian wave heating type metal melting furnace formed by the preferred embodiments of the present invention is described as follows.
Ingot bar is put into the crucible 115 in the melting portion 10 of metal melting furnace 1, start hertzian wave vibrator 120.
The hertzian wave produced by described hertzian wave vibrator 120 flow into spatial portion 113 along waveguide 101, and to spread and by thermal insulator 112 to circulation type to whole spatial portion 113
the inwall infiltration of crucible 115.
Now, to being formed in hertzian wave, the silicon carbide on crucible 115 inwall is vibrated, and cause with pottery and rub and produce heat.
The heat of this generation can not externally be flowed out by thermal insulator 112, can internally converge and apply heat to the ingot bar of depressed part 115a, thus be made into fused solution.
In order to verify effect of the present invention, form experiment crucible A and the contrast crucible B of identical size, experiment crucible A forms spatial portion 113 according to the present invention in the inside of the metal chamber 100 being formed with waveguide 101, forms thermal insulator 112 and complete preparation in the circumference of experiment crucible A.
In addition, contrast crucible B forms resistance type heater according to mode in the past in circumference, forms thermal insulation material in circumference.
In described experiment crucible A and contrast crucible B, insert the aluminium ingot block of 500Kg respectively, the amount of power powered up needed for the rear fused solution to formation 700 DEG C compares.
Now, the hertzian wave vibrator 120 of use is formed by the electromagnetic magnetron that can produce 915MHz, and waveguide is formed by tetragon pipe.
Described thermal insulator 112 and thermal insulation material all employ the material with identical heat insulation capacity.
Table 1
| Experiment crucible (A) | Contrast crucible (B) | |
| Amount of power | 40kWh | 360kWh |
Known in Table 1, when forming aluminium fused solution, when using experiment crucible A of the present invention, compared with using the situation of general contrast crucible B, its amount of power is only 1/9 level of contrast crucible B, and its effect is absolute.
Namely, adopt few amount of power can produce the heat being enough to make fused solution, therefore, compared with using the general metal melting furnace of electric heater or gas-cooker, running cost can not only be reduced significantly, and can be described as the epoch-making invention that can solve industrial electrical not foot phenomenon.
According to hertzian wave heating type metal melting furnace of the present invention, following effect can be produced, namely, without the need to the independently combustion space for heating, as long as there is the spatial portion that hertzian wave flows, therefore, can usage space effectively, crucible self-heating, and it is adiabatic by thermal insulation material, therefore, heat trnasfer is direct, thus thermo-efficiency is very high, even if also ingot bar melting can be made with the energy of about about 20% of the energy of heating unit in the past, therefore, there is energy efficiency very high, required products production unit price and considerably less etc. the effect of facility maintenance costs.
Although describe invention has been centered by preferred embodiment with reference to accompanying drawing, obviously, when those skilled in the art can be documented according to these category of the present invention do not departed from included by claims, carry out various deformation.
Claims (3)
1. a hertzian wave heating type metal melting furnace, is characterized in that, this hertzian wave heating type metal melting furnace is formed:
Metal chamber, this metal chamber is provided with the waveguide be connected with hertzian wave vibrator; And
Crucible, this crucible is surrounded by isolator, and is formed in the bosom of described metal chamber isolator by the mode forming spatial portion,
Described crucible is undertaken shaping by hybrid silicon carbide, graphite and loess and is formed.
2. a hertzian wave heating type metal melting furnace, this hertzian wave heating type metal melting furnace, as the universal metal calciner comprising melting portion and insulation portion, is characterized in that,
Described melting portion comprises metal chamber and reacting part, wherein,
Described metal chamber is provided with the waveguide be connected with hertzian wave vibrator,
Described reacting part is formed with the crucible surrounded by isolator, and this crucible is formed in the bosom of described metal chamber isolator by the mode forming spatial portion,
Described crucible is undertaken shaping by hybrid silicon carbide, graphite and loess, wherein, mix the described silicon carbide of 40 % by weight, the described graphite of 30 % by weight and 30 % by weight described loess and carry out shaping in High Temperature High Pressure mode, to make described loess can ceramic.
3. hertzian wave heating type metal melting furnace according to claim 2, is characterized in that,
The side of the crucible of described reacting part is communicated with the side in described insulation portion to be formed as making fused solution flow into continuously.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020130108263A KR101401301B1 (en) | 2013-09-10 | 2013-09-10 | Metal melting furnace using microwave heating method |
| KR10-2013-0108263 | 2013-09-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104419831A true CN104419831A (en) | 2015-03-18 |
Family
ID=51131315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410452786.0A Pending CN104419831A (en) | 2013-09-10 | 2014-09-05 | Microwave heating type metal melting furnace |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101401301B1 (en) |
| CN (1) | CN104419831A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101358257A (en) * | 2007-08-01 | 2009-02-04 | 永田和宏 | Microwave iron-making furnace |
| CN201586527U (en) * | 2009-06-30 | 2010-09-22 | 南京信息工程大学 | Holding device of microwave sample sintering furnace |
| KR20110069570A (en) * | 2009-12-17 | 2011-06-23 | 임채구 | Boiler using microwave |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7011136B2 (en) * | 2001-11-12 | 2006-03-14 | Bwxt Y-12, Llc | Method and apparatus for melting metals |
| KR101047209B1 (en) * | 2010-06-29 | 2011-07-06 | 임채구 | High temperature melting using microwave |
| KR101317331B1 (en) * | 2011-11-22 | 2013-10-11 | 주식회사 진인 | Boiler using microwave |
-
2013
- 2013-09-10 KR KR1020130108263A patent/KR101401301B1/en not_active IP Right Cessation
-
2014
- 2014-09-05 CN CN201410452786.0A patent/CN104419831A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101358257A (en) * | 2007-08-01 | 2009-02-04 | 永田和宏 | Microwave iron-making furnace |
| CN201586527U (en) * | 2009-06-30 | 2010-09-22 | 南京信息工程大学 | Holding device of microwave sample sintering furnace |
| KR20110069570A (en) * | 2009-12-17 | 2011-06-23 | 임채구 | Boiler using microwave |
Non-Patent Citations (1)
| Title |
|---|
| 孟梅等: "石墨坩埚性能的影响因素分析", 《热加工工艺》, vol. 41, no. 17, 12 September 2012 (2012-09-12) * |
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| Publication number | Publication date |
|---|---|
| KR101401301B1 (en) | 2014-06-02 |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150318 |