CN205590747U - Electric heating furnace - Google Patents
Electric heating furnace Download PDFInfo
- Publication number
- CN205590747U CN205590747U CN201620405047.0U CN201620405047U CN205590747U CN 205590747 U CN205590747 U CN 205590747U CN 201620405047 U CN201620405047 U CN 201620405047U CN 205590747 U CN205590747 U CN 205590747U
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- heat
- insulated
- furnace
- metal
- metal heating
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Abstract
The utility model relates to an electric heating furnace, its characterized in that oven from interior insulated thermal insulating heat preservation, layers of insulating fabric, thermal -insulated grieshoch and the metal stove board of outwards being equipped with in proper order, the insulated thermal insulating heat preservation on the fixed multiunit metal heating belt that is equipped with, the thermal spike was fixed with the insulated thermal insulating heat preservation mutually in this metal heating belt passed through a plurality of, the metal heating belt both ends respectively with just, the one end looks fixed connection of cathode extraction pole, just, the other end of cathode extraction pole pass insulated thermal insulating heat preservation, layers of insulating fabric, thermal -insulated grieshoch and metal stove board arrange in the oven outer and just, the junction of cathode extraction pole and metal stove board is equipped with insulating sheath. The beneficial effects of the utility model are that the energy can be saved improves heat utilization rate, reduces the manufacturing cost of steel rolling, makes the power consumption of steel rolling reduce the ton to 250~260kWh, and the processing cost approaches the heating furnace that makes coal expenses effect fuel, and the environmental protection is pollution -free in addition, and the economic serviceability is strong.
Description
Technical field
This utility model relates to a kind of heater, and a kind of steel are carried out
The electric furnace of heat treatment, is mainly used in Rolling production field.
Background technology
The fuel of traditional heater for rolling steel is broadly divided into coal, natural gas and electricity three kinds, application
During Rolling production, its cost ratio is respectively 1: 3: 4, due to the valency of current coal
Lattice drop range is relatively big, and actual cost ratio can be higher, and therefore, using coal is the heating of fuel
Stove is still that the prioritizing selection of current most domestic iron and steel enterprise.
At present, domestic steel mill is during Rolling production, and mostly use is all coal heating furnace,
Make in-furnace temperature be raised to about 1200 DEG C by burning of coal generation heat energy steel billet is heated
Process, so can reduce the resistance of deformation of steel billet greatly, thus facilitate steel rolling operation.
Owing to coal heating furnace is in heating process, flue gas can be produced, and the heat energy produced in stove is big
How can go out with fume emission, actual heat utilization rate only reaches about 30%, resource consumption
Relatively big, energy utilization rate is relatively low, and the flue gas environmental pollution discharged is more serious, with country
Environmental protection policy be not inconsistent.
Utility model content
In order to solve, existing coal heating furnace heat utilization rate is relatively low, resource consumption is relatively big and environment
The technical problem such as seriously polluted, this utility model provides a kind of electric furnace, and this electric furnace can
It is effectively improved heat utilization rate, improves the productivity effect of steel rolling, reduce waste gas and reduce pollution.
For solving above technical problem, this utility model adopts the technical scheme that a kind of electrical heating
Stove, includes body of heater, fire door and stove car, and body of heater two ends communicate and fire door is placed in body of heater two end seal
Stifled body of heater, described body of heater includes furnace roof and furnace wall, both sides；Described furnace wall from inside to outside depends on
Secondary it is provided with insulated heat heat-insulation layer, layers of insulating fabric and/or heat insulation grieshoch and metal furnaces plate；?
Being fixed with many group metal heating tapes on described insulated heat heat-insulation layer, this metal heating tape leads to
In crossing several, thermal spike fixes with insulated heat heat-insulation layer；The two ends of described metal heating tape
One end with positive and negative electrode leading-off rods is fixedly connected respectively, the other end of positive and negative electrode leading-off rods
It is placed in outside furnace wall through insulated heat heat-insulation layer, layers of insulating fabric, heat insulation grieshoch and metal furnaces plate
And the joint of positive and negative electrode leading-off rods and metal furnaces plate is provided with insulating sheath.
Further, described metal heating tape is threaded folding shape, and interior thermal spike one end is welded in gold
Belonging to the bending part of heating tape both sides, the other end is fixing in inserting insulated heat heat-insulation layer to be connected.
Further, described insulated heat heat-insulation layer is made up of mullite brick, and its thickness is
200mm～500mm；Being provided with jack in mullite brick, interior thermal spike one end inserts not come in brick
It is secured to connect.
Further, described layers of insulating fabric is made up of zirconium aluminum ceramic fiber cotton, and its thickness is
20mm～50mm.
Further, described heat insulation grieshoch is made up of pulverized limestone, its thickness be 50mm～
200mm。
Further, described furnace roof includes top board and fix the furnace roof zirconium aluminum being connected with top board resistance to
Fire fibrous layer, this furnace roof zirconium aluminum refractory fibre layer thickness is 200mm～600mm.
Further, described fire door includes door-plate and fix the fire door zirconium aluminum being connected with door-plate resistance to
Fire fibrous layer, this fire door zirconium aluminum refractory fibre layer thickness is 200mm～400mm.
Further, it is connected in series by two metal heating tapes at described each group metal heating tape,
And between two heating tapes, it is provided with the zircon corundum brick that thickness is 20mm～100mm.
The beneficial effects of the utility model are in galvanization, and interior thermal spike also can play accordingly
The effect of conduction of heat, such insulated heat heat-insulation layer just can promote furnace wall temperature rapidly, thus
The heat energy making metal heating tape produce can be done directly on steel billet, will not be absorbed by furnace wall and draw
Play hot loss of energy；And by arranging insulated heat heat-insulation layer, layers of insulating fabric and heat insulation grieshoch,
By triple protection, the distribution loss of furnace heat can be substantially reduced, thus save the energy,
Improve heat utilization rate, reduce the production cost of steel rolling, make steel rolling or the temperature of annealing stainless steel tube
Degree reaches about 1100 degree, and its power consumption can be reduced to 250～260kWh/ tons, processing cost
Close to the heating furnace of use coal effect fuel, and environment friendly and pollution-free, and economic serviceability is strong.
Accompanying drawing explanation
Fig. 1 is the side elevation in partial section of a kind of electric furnace of this utility model embodiment
Fig. 2 is the body of heater sectional structure chart of a kind of electric furnace of this utility model embodiment
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model embodiment is described further:
As shown in Figure 1 and Figure 2, this utility model is a kind of electric furnace, include body of heater,
Fire door 1 and stove car 2, body of heater two ends communicate and fire door 1 is placed in body of heater two ends closure body of heater, institute
The body of heater stated includes furnace roof 3 and furnace wall, both sides 4；In order to solve existing coal heating furnace heat energy
The technical problems such as utilization rate is relatively low, resource consumption is relatively big and environmental pollution is serious, described furnace wall
4 are from inside to outside sequentially provided with insulated heat heat-insulation layer 5, layers of insulating fabric 6 and/or heat insulation grieshoch
7 and metal furnaces plate 8；Described insulated heat heat-insulation layer 5 is fixed with many group metals send out
The torrid zone 9, this metal heating tape 9 is by thermal spike in several 10 and insulated heat heat-insulation layer 5
Fix；The two ends of described metal heating tape 9 respectively with positive and negative electrode leading-off rods 11,12
One end be fixedly connected, the other end of positive and negative electrode leading-off rods 11,12 pass insulated heat
Heat-insulation layer 5, layers of insulating fabric 6, heat insulation grieshoch 7 and metal furnaces plate 8 be placed in furnace wall 4 outer and
Positive and negative electrode leading-off rods 11,12 is provided with insulating sheath 13 with the joint of metal furnaces plate 8；Make
During with, first close the fire door 1 at body of heater two ends, then by positive and negative electrode leading-off rods 11,12
Being connected with power supply, start power supply, metal heating tape 9 will produce substantial amounts of heat energy, to body of heater
Steel billet on interior stove car 2 carries out heat treated.And owing to metal heating tape 9 is by interior thermal spike
10 fix with insulated heat heat-insulation layer 5；In galvanization, interior thermal spike 10 also can phase
The effect playing conduction of heat answered, such insulated heat heat-insulation layer 5 just can promote furnace wall rapidly
4 temperature, so that the heat energy that metal heating tape 9 produces can be done directly on steel billet, will not
Absorbed by furnace wall 4 and cause hot loss of energy；And insulated heat heat-insulation layer 5, heat insulation fibre are set
Dimension layer 6 and/or heat insulation grieshoch 7, by triple obstructs, can be substantially reduced dissipating of furnace heat
Sending out loss, the temperature of the metal furnaces plate 8 outside furnace wall 4 is not over 50 DEG C, thus saves
The energy, improves heat utilization rate, makes the temperature of steel rolling or annealing stainless steel tube reach 1100 degree
Left and right, its power consumption can be reduced to 250～260kWh/ tons, and environment friendly and pollution-free, economical
The suitability is strong and also can improve the working environment of workshop；Certainly, from the point of view of use process,
Also can be not provided with the one in heat insulation grieshoch 7 or layers of insulating fabric 6, use one layer therein to do
Also can reach identical purpose for insulating, but two kinds of its better heat preservation are set, because of
This, this example is preferred implementation.
In the present embodiment, in order to improve the heat energy in body of heater, described metal heating tape 9 in
Threaded folding shape, is set to metal heating tape 9 threaded folding shape, the most relatively increases gold
Belong to the length of heating tape 9, increase the heating area after metal heating tape 9 energising, accordingly
Improve the caloric value of metal heating tape 9；Certainly, metal heating tape may be alternatively provided as between level
Away from the vertical bar shaped of multi-laminate, but arranging this structure, the usage quantity of interior thermal spike will be relative
Reduce, be unfavorable for being rapidly heated of insulated heat heat-insulation layer 5, therefore, be threaded folding shape
It it is the preferred implementation of the present embodiment.Interior thermal spike 10 one end is welded in metal heating tape 9 liang
The bending part of side, the other end inserts 5 fixing connections in insulated heat heat-insulation layer；Generate heat at metal
The upper interior thermal spike 10 of bending part welding with 9 both sides, is so possible not only to greatly facilitate metal
The heating tape 9 installation on furnace wall 4 is fixed, meanwhile, when metal heating tape 9 heating power
After, interior thermal spike 10 may also function as conduction of heat, makes insulated heat heat-insulation layer 5 quickly rise
Temperature, thus the utilization rate of heat energy in improving body of heater, reduce production cost.
In the present embodiment, described insulated heat heat-insulation layer 5 is made up of mullite brick, and it is thick
Degree is 200mm～500mm；Being provided with jack in mullite brick, interior thermal spike 10 one end is inserted
It is secured in not carrying out brick connect；Owing to having of mullite brick is high temperature resistant, intensity is high, heat conduction
Coefficient is little, can effectively play heat insulation and preservation effect, thus in can making body of heater, heat-energy losses reduces,
Improving the whole energy effect of heating furnace, thickness is preferably 360mm.Certainly, it is possible to use
Other flame-proof thermal insulation material, such as kieselguhr, foamed concrete etc., but due to mullite brick city
Can arbitrarily buy on Chang, but also be easy to the fixing of interior thermal spike, therefore, employing mullite brick is
Preferred implementation.
In the present embodiment, described layers of insulating fabric 6 is made up of zirconium aluminum ceramic fiber cotton, its
Thickness is 20mm～50mm；Owing to zirconium aluminum ceramic fiber cotton has preferable fire resistance and guarantor
Warm nature, therefore, increases layers of insulating fabric and can further improve the heat-insulating property of furnace wall, reduce heat
The loss of energy, improves the utilization rate of heat energy, and its thickness is preferably 40mm.
In the present embodiment, described heat insulation grieshoch 7 is made up of pulverized limestone, and its thickness is
50mm～200mm, preferred thickness is 150mm, by increasing Calx bisque, the most permissible
Further play heat insulation, insulation effect, during heating furnace works, temperature in furnace wall 4
When being heated to more than 1200 DEG C, by insulated heat heat-insulation layer 5, layers of insulating fabric 6 and heat insulation ash
The obstruct of layer 7, the temperature of the outside metal furnaces plate 8 of furnace wall is not over 50 DEG C；Certainly,
May be used without other powder, ash, end class material, such as sand or stone powder etc., but use pulverized limestone
Producing gelation after having dehumidifying and being heated, therefore, the present embodiment is preferred implementation.
In the present embodiment, described furnace roof 3 includes top board 31 and company fixing with top board 31
The furnace roof zirconium aluminum refractory fiber floor 32 connect, this furnace roof zirconium aluminum refractory fiber floor 32 thickness is
200mm～600mm, preferred thickness is 480mm, resistance to by adding zirconium aluminum on top board 31
Fire fibrous layer 32, can play heat insulation effect, and in making stove, heat energy is applied to add as far as possible
On hot steel billet, improve the utilization rate of heat energy.
In the present embodiment, described fire door 1 includes door-plate 14 and company fixing with door-plate 14
The fire door zirconium aluminum refractory fiber floor 15 connect, this fire door zirconium aluminum refractory fiber floor 15 thickness is
200mm～400mm, preferred thickness is 330mm, by adding zirconium aluminum on stove door plant 14
Refractory fiber floor 15, can play heat insulation effect, and in making stove, heat energy is applied to as far as possible
On heating steel billet, improve the utilization rate of heat energy.
In the present embodiment, for the ease of the production and assembly of each group of metal heating tape 9, described
Each group metal heating tape 9 is connected in series by two metal heating tapes, and between two heating tapes
It is provided with the zircon corundum brick 16 that thickness is 20mm～100mm；By by two metal heating tapes
It is connected in series in, the power improving each group of metal heating tape so can just answered mutually, and in peace
During dress, the metal heating tape two ends being connected in series in connect positive and negative electrode leading-off rods 11,12 respectively,
The layout being easy to metal heating tape 9 is fixed with installing；And add between each group of metal heating tape 9
If zircon corundum brick 16, it is possible to prevent between two adjacent metal heating tapes 9 to produce electric arc, shadow
Ring the heating power work of metal heating tape 9.
Above-described embodiment is not construed as restriction of the present utility model, but any new based on this practicality
The spiritual improvements introduced of type, all should be within protection domain of the present utility model.
Claims (8)
1. an electric furnace, includes body of heater, fire door and stove car, body of heater two ends communicate and
Fire door is placed in body of heater two ends closure body of heater, and described body of heater includes furnace roof and furnace wall, both sides；
It is characterized in that described furnace wall is from inside to outside sequentially provided with insulated heat heat-insulation layer, heat insulation fibre
Tie up layer and/or heat insulation grieshoch and metal furnaces plate；Described insulated heat heat-insulation layer is fixed and sets
Having many group metal heating tapes, this metal heating tape is protected with insulated heat by thermal spike in several
Temperature layer fixes；The two ends of described metal heating tape respectively with the one of positive and negative electrode leading-off rods
End is fixedly connected, the other end of positive and negative electrode leading-off rods through insulated heat heat-insulation layer, every
Thermal fiber layer, heat insulation grieshoch and metal furnaces plate are placed in outside furnace wall and positive and negative electrode leading-off rods is with golden
The joint belonging to stove plate is provided with insulating sheath.
A kind of electric furnace the most according to claim 1, it is characterised in that described gold
Belonging to heating tape is threaded folding shape, and interior thermal spike one end is welded in the bending of metal heating tape both sides
Place, the other end is fixing in inserting insulated heat heat-insulation layer to be connected.
A kind of electric furnace the most according to claim 1 and 2, it is characterised in that described
Insulated heat heat-insulation layer be made up of mullite brick, its thickness is 200mm～500mm；?
Being provided with jack in mullite brick, interior thermal spike one end is inserted in not carrying out brick and is secured to connect.
A kind of electric furnace the most according to claim 3, it is characterised in that described every
Thermal fiber layer is made up of zirconium aluminum ceramic fiber cotton, and its thickness is 20mm～50mm.
A kind of electric furnace the most according to claim 4, it is characterised in that described every
Hot grieshoch is made up of pulverized limestone, and its thickness is 50mm～200mm.
A kind of electric furnace the most according to claim 5, it is characterised in that described stove
Top includes top board and fixes the furnace roof zirconium aluminum refractory fiber floor being connected, this furnace roof zirconium with top board
Aluminum refractory fibre layer thickness is 200mm～600mm.
A kind of electric furnace the most according to claim 6, it is characterised in that described stove
Door includes door-plate and fixes the fire door zirconium aluminum refractory fiber floor being connected, this fire door zirconium with door-plate
Aluminum refractory fibre layer thickness is 200mm～400mm.
A kind of electric furnace the most according to claim 7, it is characterised in that described
Each group metal heating tape is connected in series by two metal heating tapes, and between two heating tapes
It is provided with the zircon corundum brick that thickness is 20mm～100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620405047.0U CN205590747U (en) | 2016-04-27 | 2016-04-27 | Electric heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620405047.0U CN205590747U (en) | 2016-04-27 | 2016-04-27 | Electric heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205590747U true CN205590747U (en) | 2016-09-21 |
Family
ID=56932789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620405047.0U Expired - Fee Related CN205590747U (en) | 2016-04-27 | 2016-04-27 | Electric heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205590747U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105969954A (en) * | 2016-04-27 | 2016-09-28 | 苍南红炉电炉制造有限公司 | Electric heating furnace |
-
2016
- 2016-04-27 CN CN201620405047.0U patent/CN205590747U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105969954A (en) * | 2016-04-27 | 2016-09-28 | 苍南红炉电炉制造有限公司 | Electric heating furnace |
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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: 20160921 Termination date: 20170427 |