CN201273775Y - Radiant heating structure for reducing furnace - Google Patents
Radiant heating structure for reducing furnace Download PDFInfo
- Publication number
- CN201273775Y CN201273775Y CNU2008201859385U CN200820185938U CN201273775Y CN 201273775 Y CN201273775 Y CN 201273775Y CN U2008201859385 U CNU2008201859385 U CN U2008201859385U CN 200820185938 U CN200820185938 U CN 200820185938U CN 201273775 Y CN201273775 Y CN 201273775Y
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- China
- Prior art keywords
- infrared radiation
- wall
- radiation plate
- far
- far infrared
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Abstract
The utility model discloses a radiation heating structure of a reducing furnace, which comprises a far-infrared radiation plate, an insulating layer, a heat preservation layer and a shell, which are sleeved on the outer wall of a furnace chamber in sequence. The utility model is characterized in that a gap is left between the outer wall of the furnace chamber and the inner wall of the far-infrared radiation plate. A thermocouple is arranged on the shell; the end of a temperature measuring rod is inserted into the far-infrared radiation plate; the outer wall of the far-infrared radiation plate is provided with a rectangular open slot with an embedded resistor stripe; and the leading-out terminal of the resistor bar is connected with an outer power supply. After being powered up, the resistor stripe can generate heat, and the heat is radiated by the far-infrared radiation plate to the substance to be heated. The heating with far-infrared radiation has the function of enhancing the molecular motion in the substance, thereby effectively reducing the loss caused by thermal conduction and thermal convection. The utility model has the advantages of high heating efficiency and good reducing quality. The heating component has the advantages of long service life and low maintenance cost. The utility model is applicable to the heating structures of the reducing furnace of various specifications.
Description
Technical field
The utility model relates to a kind of metallurgical reduction furnace, particularly a kind of reduction furnace for preparing metal dust, and this reduction furnace adopts the radiation heating form.
Background technology
Reduction operation in the metal dust preparation flow is a critical process, and reduction furnace is an indispensable equipment of implementing the reduction operation.The reduction furnace heating element heater of prior art is helical form nichrome wire or nichrome silk, and the design temperature heating is pressed by temperature controller in heating element heater energising back, reduces under the temperature conditions of setting to satisfy metal dust.The deficiencies in the prior art part is a directly-heated type, and thermal losses is big, easy oxidation damage during heating element heater high temperature, and also the heating element heater that damages is changed, and difficulty is big, cost is high.
The utility model content
The utility model is primarily aimed at the deficiencies in the prior art, proposes a kind of non-directly-heated structure, the radiation heating formula reduction furnace of efficiency of heating surface height, long service life.
The utility model is achieved through the following technical solutions technical goal.
Reduction furnace radiation heating structure, it comprises furnace chamber, far infrared radiation plate, resistor stripe, thermocouple, insulating barrier, heat-insulation layer and shell.Described furnace chamber is a circle tube member, suit far infrared radiation plate, insulating barrier, heat-insulation layer and shell successively on the furnace chamber outer wall.Its improvements are: be provided with the space between described furnace chamber outer wall and the far infrared radiation plate inwall.Described resistor stripe is radial five equilibrium and is inlaid on the far infrared radiation plate outer wall exit external power supply of resistor stripe.
In the said structure, furnace chamber and far infrared radiation sheet separation fit, this gap is between 20～50mm.Far infrared radiation heating plate outer wall is provided with open slot setting-in resistor stripe, and material is that the resistor stripe cross section of Aludirome is big, and current density is little, and the heating of energising back is low relatively, and resistor stripe embeds the far infrared radiation plate and helps improving heat radiation.
The utility model compared with prior art has following good effect:
1, simple in structure, easy manufacturing;
2, the far infrared radiation heating has the effect of strengthening the motion of material interior molecules, effectively reduces heat conduction and thermal convection losses, efficiency of heating surface height;
3, big as the resistor disc cross section of heater element, current density is little, and energising back heating temp is low, is difficult for oxidation damage, long service life, and maintenance cost is low.
Description of drawings
Accompanying drawing is the utility model structural profile schematic diagram.
The specific embodiment
With reference to the accompanying drawings also in conjunction with being the also embodiment of original production molybdenum powder of raw material with the ammonium molybdate, the utility model is described in further detail below.
Embodiment 1
Reduction furnace radiation heating structure shown in the drawings, it comprises furnace chamber 1, far infrared radiation plate 2, resistor stripe 3, thermocouple 4, insulating barrier 5, heat-insulation layer 6 and shell 7.Cylindrical chamber 1 is the member that is positioned at the utility model middle part, coaxial package far infrared radiation plate 2 on furnace chamber 1 outer wall, space 8 determines that according to heating power present embodiment is the molybdenum powder reduction stove of heating power 60KW, empty 35mm between furnace chamber 1 outer wall and far infrared radiation plate 2 inwalls between the two.Far infrared radiation plate 2 outer walls are provided with rectangular aperture groove setting-in resistor stripe 3, the exit external power supply of resistor stripe 3.Sealing label insulating barrier 5 on far infrared radiation plate 2 outer walls is provided with heat-insulation layer 6 between shell 7 and the insulating barrier 5.Thermocouple 4 is fixedly mounted on the shell 7, and its thermometric rod end is inserted to far infrared radiation plate 2 places.Material is the resistor stripe 3 energising back heating of Aludirome, be embedded in resistor stripe 3 heats in the far infrared radiation plate 2 by far infrared radiation to heated molybdenum raw material.The far infrared radiation heating has the effect of strengthening the motion of molybdenum raw material interior molecules, effectively reduces heat conduction and thermal convection losses.The utility model efficiency of heating surface height, also proper mass is good, and heater element resistance bar 3 heating temps are low, are difficult for oxidation damage, long service life, maintenance cost is low.
Embodiment 2
Present embodiment is that heating power is the molybdenum powder reduction stove radiation heating structure of 40KW, its structure is the same with embodiment 1, the value that only is space 8 between far infrared radiation plate 2 inwalls of furnace chamber 1 outer wall and coaxial package is set at 20mm, and its result of use is similar with embodiment 1.
Present embodiment is that heating power is the molybdenum powder reduction stove radiation heating structure of 80KW, its structure is the same with embodiment 1, the value that only is space 8 between far infrared radiation plate 2 inwalls of furnace chamber 1 outer wall and coaxial package is set at 50mm, and its result of use is similar with embodiment 1.
As the improvement of utility model, on the inwall of far infrared radiation plate 2, apply one deck coatings capable of preventing from far infrared radiation, can further improve the thermal radiation capability of far infrared radiation plate 2, cut down the consumption of energy.
Claims (4)
1, a kind of reduction furnace radiation heating structure, it comprises furnace chamber (1), far infrared radiation plate (2), resistor stripe (3), thermocouple (4), insulating barrier (5), heat-insulation layer (6) and shell (7); Described furnace chamber (1) is a circle tube member, suit far infrared radiation plate (2), insulating barrier (5), heat-insulation layer (6) and shell (7) successively on furnace chamber (1) outer wall; It is characterized in that: be provided with space (8) between described furnace chamber (1) outer wall and far infrared radiation plate (2) inwall; Described resistor stripe (3) is radial five equilibrium and is inlaid on far infrared radiation plate (2) outer wall exit external power supply of resistor stripe (3).
2, reduction furnace radiation heating structure according to claim 1 is characterized in that: the space is 20～50mm between far infrared radiation plate (2) inwall of described furnace chamber (1) outer wall and fit mutually.
3, radiation heating formula reduction furnace according to claim 1 is characterized in that: described far infrared radiation heating plate (2) outer wall is provided with the rectangular aperture groove, and groove width equals the thickness of resistor stripe (3).
4, radiation heating formula reduction furnace according to claim 1 is characterized in that: described resistor stripe (3) material is an Aludirome.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201859385U CN201273775Y (en) | 2008-09-10 | 2008-09-10 | Radiant heating structure for reducing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201859385U CN201273775Y (en) | 2008-09-10 | 2008-09-10 | Radiant heating structure for reducing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201273775Y true CN201273775Y (en) | 2009-07-15 |
Family
ID=40884122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201859385U Expired - Fee Related CN201273775Y (en) | 2008-09-10 | 2008-09-10 | Radiant heating structure for reducing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201273775Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102625502A (en) * | 2011-01-29 | 2012-08-01 | 东北大学 | Heater for vacuum hot-pressing furnace |
| CN106918222A (en) * | 2015-12-25 | 2017-07-04 | 天津市维之丰科技有限公司 | A kind of Muffle furnace |
| CN107889287A (en) * | 2017-09-30 | 2018-04-06 | 中核新能核工业工程有限责任公司 | It is a kind of to be used for high temperature fluidized bed electric heater |
-
2008
- 2008-09-10 CN CNU2008201859385U patent/CN201273775Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102625502A (en) * | 2011-01-29 | 2012-08-01 | 东北大学 | Heater for vacuum hot-pressing furnace |
| CN106918222A (en) * | 2015-12-25 | 2017-07-04 | 天津市维之丰科技有限公司 | A kind of Muffle furnace |
| CN107889287A (en) * | 2017-09-30 | 2018-04-06 | 中核新能核工业工程有限责任公司 | It is a kind of to be used for high temperature fluidized bed electric heater |
| CN107889287B (en) * | 2017-09-30 | 2021-06-22 | 中核新能核工业工程有限责任公司 | Electric heater for high-temperature fluidized bed |
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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 |
Granted publication date: 20090715 Termination date: 20170910 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |