CN110595216B - Heating furnace - Google Patents
Heating furnace Download PDFInfo
- Publication number
- CN110595216B CN110595216B CN201910943492.0A CN201910943492A CN110595216B CN 110595216 B CN110595216 B CN 110595216B CN 201910943492 A CN201910943492 A CN 201910943492A CN 110595216 B CN110595216 B CN 110595216B
- Authority
- CN
- China
- Prior art keywords
- heating
- heating element
- furnace
- insulating layer
- insulating
- 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.)
- Active
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 180
- 238000009413 insulation Methods 0.000 claims abstract description 23
- 238000005452 bending Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 13
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000001066 destructive effect Effects 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- F27B14/04—Crucible or pot furnaces adapted for treating the charge in vacuum or special atmosphere
-
- 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
-
- 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
- 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
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/0003—Linings or walls
- F27D1/0033—Linings or walls comprising heat shields, e.g. heat shieldsd
-
- 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
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/18—Door frames; Doors, lids, removable covers
- F27D1/1808—Removable covers
-
- 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
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/08—Heating by electric discharge, e.g. arc discharge
- F27D11/10—Disposition of electrodes
-
- 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
- F27B14/04—Crucible or pot furnaces adapted for treating the charge in vacuum or special atmosphere
- F27B2014/045—Vacuum
-
- 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
- F27B2014/0825—Crucible or pot support
-
- 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
- F27B2014/0843—Lining or casing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Details (AREA)
- Resistance Heating (AREA)
Abstract
The invention discloses a heating furnace, which comprises: a furnace body; the heat insulation layer is connected with the inner side wall and the bottom wall of the furnace body to form a heating cavity with an open upper end in the furnace body; a heating element mounted to a bottom wall of the heating cavity; and the bearing element is connected with the side wall of the heating cavity, is positioned above the heating element and is arranged at a vertical interval from the heating element. According to the heating furnace provided by the invention, the heat insulation layer, the bearing element and the heating element are arranged, so that the heating furnace can meet the special boundary condition requirement of heat transfer from the bottom to the heated working medium, the heated working medium and the heating element can be effectively isolated, and the heating element can be prevented from being damaged.
Description
Technical Field
The invention belongs to the technical field of metal melting, and particularly relates to a heating furnace.
Background
For high temperature, refractory metal melting, methods commonly used in industry today include resistive heating, induction heating, arc heating, and the like. Induction heating is a method of generating electric current in a heated material by electromagnetic induction, and achieves the heating purpose by means of the energy of eddy currents. Resistive heating refers to a method of electrically heating a material using the thermal effect of an electric current through a resistive body.
In the related art, the heat flow direction cannot be controlled; and the heating element is not physically isolated from the heated material, so that the heating element is threatened greatly under the special conditions of splashing and the like of the heated material, the heated working medium cannot be heated from a single surface, and the requirements of some special boundary conditions cannot be met.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, an object of the present invention is to propose an electric furnace which can provide special boundary conditions for heating only by the bottom and which prevents damage to the heating element when the heated medium is subjected to destructive operations, such as water injection onto the heated medium.
The heating furnace according to the embodiment of the invention comprises: a furnace body; the heat insulation layer is connected with the inner side wall and the bottom wall of the furnace body to form a heating cavity with an open upper end in the furnace body; a heating element mounted to a bottom wall of the heating cavity; and the bearing element is connected with the side wall of the heating cavity, is positioned above the heating element and is arranged at a vertical interval from the heating element.
According to the heating furnace provided by the invention, the heat insulation layer, the bearing element and the heating element are arranged, so that the heating furnace can meet the special boundary condition requirement of heat transfer from the bottom to the heated working medium, the heated working medium and the heating element can be effectively isolated, and the heating element can be prevented from being damaged.
According to the heating furnace provided by the embodiment of the invention, the area of the bearing element is larger than the bottom area of the heating cavity, the side wall of the heating cavity is provided with the mounting groove extending along the radial direction, part of the bearing element extends into the mounting groove, and the bearing element is connected with the periphery of the mounting groove in a sealing way.
According to the heating furnace provided by the embodiment of the invention, the heat insulation layer comprises a first heat insulation layer, a second heat insulation layer and a third heat insulation layer which are sequentially connected from inside to outside, the outer surface of the third heat insulation layer is connected with the furnace body, and the installation groove penetrates through the first heat insulation layer and the second heat insulation layer.
According to the heating furnace provided by the embodiment of the invention, the periphery of the bearing element is provided with the bearing flanging extending upwards, and the bearing flanging is stopped against the inner side of the third heat insulation layer.
According to the heating furnace provided by the embodiment of the invention, the heating furnace further comprises an insulating part, wherein the insulating part is supported on the bottom wall of the heating cavity, the insulating part is provided with an upward bent insulating flanging, the heating element is supported on the insulating part, and the peripheral edge of the heating element is positioned on the inner side of the insulating flanging.
According to the heating furnace of the embodiment of the invention, the length of the insulating flange along the up-down direction is larger than the thickness of the heating element along the up-down direction, and the lower surface of the bearing element is supported at the upper end of the insulating flange.
The heating furnace according to one embodiment of the invention further comprises a wiring electrode and a heating stage, wherein the first end of the wiring electrode is electrically connected with the heating element, and the wiring electrode penetrates through at least part of the heat insulation layer to be connected with the heating electrode.
According to the heating furnace provided by the embodiment of the invention, the heating element comprises the heating disc, two ends of the heating disc are respectively connected with the first ends of the two wiring electrodes, and the heating disc is formed by winding bars with circular sections.
According to the heating furnace provided by the embodiment of the invention, the heating plate comprises a plurality of straight line parts and a plurality of bending parts, the straight line parts are arranged in parallel at intervals, the bending parts are used for connecting two adjacent straight line parts, and the free ends of the two straight line parts positioned at the outermost side are electrically connected with the wiring electrode.
The heating furnace according to one embodiment of the present invention further comprises a top cover pivotally mounted to the furnace body, the top cover selectively closing the open end of the heating chamber.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic view of a heating furnace according to an embodiment of the present invention;
Fig. 2 is a schematic structural view of a heat-generating plate according to an embodiment of the present invention.
Reference numerals:
A heating furnace 100; a heating chamber 101;
a furnace body 1;
A heat insulating layer 2; a first insulating layer 21; a second insulating layer 22; a third insulating layer 23;
a heating element 3; a heat-generating plate 31; a straight line portion 311; a bending portion 312;
a carrier element 4; a carrying flange 41;
An insulating member 5; an insulating flange 51;
A wiring electrode 61; heating electrode 62;
a top cover 7.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
An electric furnace according to an embodiment of the present invention is described below with reference to fig. 1 and 2.
Unless otherwise specified, "inside" in the present invention is a direction approaching the heating chamber 101, "outside" is a direction departing from the heating chamber 101, and "vertical" is an up-down direction of the heating furnace 100, i.e., Z-direction.
As shown in fig. 1, a furnace body 1 is used as a shell of a heating furnace 100, the upper end of the furnace body 1 is opened, a heat insulating layer 2, a heating element 3, a bearing element 4 and the like are installed inside the furnace body 1, specifically, the heat insulating layer 2 is connected with the inner side wall and the bottom wall of the furnace body 1 to form a heating cavity 101 with the upper end open in the furnace body 1, the heat insulating layer 2 is used for heat insulation and heat preservation of the heating cavity 101 of the heating furnace 100, the heating element 3 is installed on the bottom wall of the heating cavity 101, the bearing element 4 is connected with the side wall of the heating cavity 101, and the bearing element 4 is located above the heating element 3 and is vertically arranged at intervals with the heating element 3.
Therefore, the carrying element 4 can be used for carrying a heated working medium, the heating element 3 generates heat and generates heat radiation to be transmitted to the carrying element 4, the heated working medium placed on the carrying element 4 is heated, as the heating element 3 is arranged on the bottom wall of the heating cavity 101, the special boundary condition requirement of heat transmission from the bottom to the heated working medium can be realized, the heating element 3 and the carrying element 4 are arranged at intervals vertically (namely in the vertical direction), a gap is formed between the carrying element 4 and the heating element 3, the temperature of the heating element 3 can be transmitted to the carrying element 4 through narrow-gap radiation after the heating element 3 generates heat, and the carrying element 4 directly melts the heated working medium through heat conduction.
In the heating furnace 100 of the present invention, by providing the carrying element 4 with a gap between the carrying element 4 and the heating element 3, the heated working medium is effectively isolated from the heating element 3, and when destructive operation (such as water injection onto the heated working medium) is performed on the heated working medium, damage to the heating element 3 can be prevented due to the effective isolation of the heated working medium from the heating element 3.
According to the heating furnace 100, the heat insulation layer 2, the bearing element 4 and the heating element 3 are arranged, so that the heating furnace 100 can meet the special boundary condition requirement of heat transfer from the bottom to the heated working medium, the heated working medium can be effectively isolated from the heating element 3, and the heating element 3 can be prevented from being damaged.
Some embodiments of the heating furnace 100 according to the present invention are described below with reference to fig. 1 and 2.
In some embodiments, as shown in fig. 1, the area of the bearing element 4 is larger than the bottom area of the heating cavity 101, the side wall of the heating cavity 101 is provided with a mounting groove extending along the radial direction, a part of the bearing element 4 stretches into the mounting groove, the bearing element 4 is connected with the peripheral edge of the mounting groove in a sealing manner, the connection area between the bearing element 4 and the side wall of the heating cavity 101 can be increased by the arrangement of the mounting groove, the connection strength between the bearing element 4 and the side wall of the heating cavity 101 is higher, the sealing is convenient, and the bearing element 4 can be limited in the up-down direction by the arrangement of the mounting groove, so that the bearing element 4 is firmly arranged on the side wall of the heating cavity 101, the bearing element 4 and the heating element 3 are kept to be arranged at intervals, and the bearing element 4 is connected with the peripheral edge of the mounting groove in a sealing manner, so that heated working medium cannot flow into the mounting groove or the heating element 3 from the upper surface of the bearing element 4 after being melted.
In some embodiments, as shown in fig. 1, the heat insulating layer 2 includes a first heat insulating layer 21, a second heat insulating layer 22 and a third heat insulating layer 23 sequentially connected from inside to outside, the outer surface of the third heat insulating layer 23 is connected to the furnace body 1, that is, the third heat insulating layer 23 is close to the wall surface of the furnace body 1, the inner wall of the first heat insulating layer 21 forms the side wall of the heating cavity 101, the second heat insulating layer 22 is sandwiched between the first heat insulating layer 21 and the third heat insulating layer 23, and the heat insulating layer 2 may be made of a material having fire-resistant heat insulating properties.
In some embodiments, as shown in fig. 1, the periphery of the bearing element 4 is provided with a bearing flange 41 extending upwards, and the bearing flange 41 abuts against the inner side of the third heat insulation layer 23, so that the bearing flange 41 can increase the connection area between the bearing element 4 and the heat insulation layer 2, and can prevent the heated working medium from overflowing, and when the sealing connection between the bearing element 4 and the heat insulation layer 2 is problematic, the bearing flange 41 can also prevent the heated working medium from flowing into the heating element 3 from the upper surface of the bearing element 4, thereby playing a role in protecting the heating element 3.
In some examples, the first insulating layer 21 is made of zirconia material, the second insulating layer 22 and the third insulating layer 23 are made of alumina material, i.e. the insulating layer 2 close to the furnace body 1 is made of double-layer alumina material (second insulating layer 22 and third insulating layer 23), and the side wall of the heating chamber 101 (first insulating layer 21) is a crucible made of zirconia material, so as to ensure good heat insulation and support.
The carrier element 4 may be made of tungsten plate and graphite plate, so that the carrier element 4 is resistant to corrosion by the typically heated working medium and provides good high temperature strength and heat conduction. When tungsten or graphite is used as the material of construction of the carrier element 4, the furnace 100 needs to be operated in a vacuum or shielding gas atmosphere, and a vacuum chamber for carrying the furnace body can be provided with reference to a general vacuum type high temperature furnace design.
In some embodiments, as shown in fig. 1, the heating furnace 100 further includes an insulating member 5, the insulating member 5 is supported on the bottom wall of the heating cavity 101, the insulating member 5 is provided with an insulating flange 51 bent upwards, the heating element 3 is supported on the insulating member 5, and the periphery of the heating element 3 is located inside the insulating flange 51, thereby, the heating element 3 is carried in a carrying space formed by the insulating flange 51 and the upper surface of the insulating member 5, the side surface of the heating element 3 is spaced apart from the insulating layer 2 by the insulating flange 51, the carrying surface of the insulating member 51 carrying the heating element 3 is spaced apart from the bottom surface of the heating element 3 and the insulating layer 2, thereby, the heating element 3 is carried on the insulating member 5, and the insulating member 5 can realize insulation treatment between the heating element 3 and the insulating layer 2, so as to ensure the safety of the heating furnace 100.
In some embodiments, as shown in fig. 1, the length of the insulating flange 51 in the up-down direction is greater than the thickness of the heating element 3 in the up-down direction, and the lower surface of the bearing element 4 is supported on the upper end of the insulating flange 51, so that the bearing element 4 and the heating element 3 are vertically spaced apart, and the insulating flange 51 can also serve to support the bearing element 4, so that the bearing element 4 is more firmly supported above the heating element 3.
In some embodiments, as shown in fig. 1, the heating furnace 100 further includes a wiring electrode 61 and a heating electrode 62, where a first end of the wiring electrode 61 is electrically connected to the heating element 3, and the wiring electrode 61 is connected to the heating electrode 62 through at least part of the insulating layer 2 (for example, the wiring electrode 61 penetrates through the first insulating layer 21 and part of the second insulating layer 22), in some examples, the heating furnace 100 may be provided with a through hole penetrating through the bottom of the furnace body 1 and the insulating layer 2 sequentially from bottom to top, that is, one end of the through hole is connected to the heating element 3, and the other end of the through hole is connected to the outside of the furnace body 1, the wiring electrode 61 penetrates through the through hole from the outside of the furnace body 1 into the heating element 3 to be electrically connected to the heating element 3, at least part of the heating electrode 62 also penetrates into the through hole, the heating electrode 62 is connected to the wiring electrode 61 in the through hole, and the heating electrode 62 may be a water-cooled copper electrode, thereby connecting a power source from the outside of the furnace body 1 to the heating electrode 62, and being connected to the heating element 3 through the wiring electrode 61 to achieve power supply to the heating element 3.
In some embodiments, as shown in fig. 2, the heating element 3 includes a heating plate 31, two ends of the heating plate 31 are respectively connected to first ends of two connection electrodes 61 (the two connection electrodes 61 are respectively electrically connected to a positive electrode and a negative electrode of a power supply), the heating plate 31 is formed by winding a bar with a circular cross section, and the surface area of the circular bar is larger, so that the heating efficiency of the heating element 3 can be enhanced.
In some embodiments, as shown in fig. 2, the heat-generating plate 31 includes a plurality of straight portions 311 and a plurality of bending portions 312, the plurality of straight portions 311 are disposed in parallel and spaced apart, the bending portions 312 are used to connect two adjacent straight portions 311, and free ends of the two straight portions 311 located at the outermost sides are electrically connected with the two wiring electrodes 61, respectively, whereby the heat-generating plate 31 can be formed in a shape as shown in fig. 2, which has a high heat-generating efficiency and is easy to process.
In some embodiments, as shown in fig. 1, the heating furnace 100 further includes a top cover 7, the top cover 7 is pivotally mounted on the furnace body 1, the top cover 7 can selectively close the open end of the heating cavity 101, the top cover 7 can reduce heat dissipation of the heating cavity 101, the top cover 7 can be turned over during heating, so that the top cover 7 closes the open end of the heating cavity 101, and the top cover 7 can be turned over and opened when feeding or other operations for intervening materials are needed, thereby, the heat dissipation of the heating cavity 101 is reduced due to the arrangement of the top cover 7, and the operation is convenient.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. A heating furnace, characterized by comprising:
a furnace body;
The heat insulation layer is connected with the inner side wall and the bottom wall of the furnace body to form a heating cavity with an open upper end in the furnace body;
a heating element mounted to a bottom wall of the heating cavity;
The bearing element is connected with the side wall of the heating cavity, is positioned above the heating element and is arranged at a vertical interval from the heating element; the area of the bearing element is larger than the bottom area of the heating cavity, the side wall of the heating cavity is provided with a mounting groove extending along the radial direction, part of the bearing element extends into the mounting groove, and the bearing element is connected with the peripheral edge of the mounting groove in a sealing way;
The insulating piece is supported on the bottom wall of the heating cavity, the insulating piece is provided with an insulating flanging which is bent upwards, the heating element is supported on the insulating piece, and the periphery of the heating element is positioned on the inner side of the insulating flanging; the heating element is borne in a bearing space formed by the insulating flange and the upper surface of the insulating piece, the insulating flange separates the side surface of the heating element from the heat insulation layer, and the bearing surface of the insulating piece for bearing the heating element separates the bottom surface of the heating element from the heat insulation layer.
2. The heating furnace of claim 1, wherein the heat insulating layer comprises a first heat insulating layer, a second heat insulating layer and a third heat insulating layer which are sequentially connected from inside to outside, the outer surface of the third heat insulating layer is connected with the furnace body, and the installation groove penetrates through the first heat insulating layer and the second heat insulating layer.
3. A furnace according to claim 2, wherein the peripheral edge of the carrier element is provided with an upwardly extending carrier flange which abuts against the inner side of the third insulating layer.
4. The heating furnace according to claim 1, wherein a length of the insulating flange in the up-down direction is greater than a thickness of the heating element in the up-down direction, and a lower surface of the bearing element is supported on an upper end of the insulating flange.
5. The furnace of claim 1, further comprising a wiring electrode and a heating electrode, wherein a first end of the wiring electrode is electrically connected to the heating element, and wherein the wiring electrode is connected to the heating electrode through at least a portion of the insulating layer.
6. The heating furnace according to claim 5, wherein the heating element comprises a heating plate, two ends of the heating plate are respectively connected with the first ends of the two wiring electrodes, and the heating plate is formed by winding a bar with a circular cross section.
7. The heating furnace according to claim 6, wherein the heating plate comprises a plurality of straight portions and a plurality of bending portions, the plurality of straight portions are arranged in parallel and at intervals, the bending portions are used for connecting two adjacent straight portions, and free ends of two outermost straight portions are electrically connected with the wiring electrode.
8. The furnace of any one of claims 1-7, further comprising a roof pivotally mounted to the furnace body, the roof selectively closing the open end of the heating cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910943492.0A CN110595216B (en) | 2019-09-30 | 2019-09-30 | Heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910943492.0A CN110595216B (en) | 2019-09-30 | 2019-09-30 | Heating furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110595216A CN110595216A (en) | 2019-12-20 |
| CN110595216B true CN110595216B (en) | 2024-06-04 |
Family
ID=68865274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910943492.0A Active CN110595216B (en) | 2019-09-30 | 2019-09-30 | Heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110595216B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2852015Y (en) * | 2005-10-18 | 2006-12-27 | 刘祥清 | Internal heating zinc boiler |
| CN105300098A (en) * | 2015-10-25 | 2016-02-03 | 重庆市特泰机械制造有限公司 | Temperature-control casting electric furnace |
| CN205373401U (en) * | 2016-01-07 | 2016-07-06 | 广元恒大铝业有限公司 | Novel no dead angle aluminium sediment smelting furnace |
| CN206176999U (en) * | 2016-11-15 | 2017-05-17 | 云梦县三湖浩大铸造有限公司 | Energy -saving blast furnace of far infrared |
| CN211695907U (en) * | 2019-09-30 | 2020-10-16 | 国核华清（北京）核电技术研发中心有限公司 | Heating furnace |
-
2019
- 2019-09-30 CN CN201910943492.0A patent/CN110595216B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2852015Y (en) * | 2005-10-18 | 2006-12-27 | 刘祥清 | Internal heating zinc boiler |
| CN105300098A (en) * | 2015-10-25 | 2016-02-03 | 重庆市特泰机械制造有限公司 | Temperature-control casting electric furnace |
| CN205373401U (en) * | 2016-01-07 | 2016-07-06 | 广元恒大铝业有限公司 | Novel no dead angle aluminium sediment smelting furnace |
| CN206176999U (en) * | 2016-11-15 | 2017-05-17 | 云梦县三湖浩大铸造有限公司 | Energy -saving blast furnace of far infrared |
| CN211695907U (en) * | 2019-09-30 | 2020-10-16 | 国核华清（北京）核电技术研发中心有限公司 | Heating furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110595216A (en) | 2019-12-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2618086B1 (en) | Cold crucible induction melter integrating induction coil and melting furnace | |
| EP1691945B1 (en) | Heated trough for molten metal | |
| CA1263883A (en) | Liquid cooled cover for electric arc furnace | |
| WO2010073736A1 (en) | Continuous casting method and nozzle heating device | |
| CN110595216B (en) | Heating furnace | |
| CN211695907U (en) | Heating furnace | |
| CN111854431A (en) | Heating system in immersive stove | |
| KR100255406B1 (en) | Direct current arc furnace plant | |
| CN212720792U (en) | Dangerous section compensation type metal heating body for vacuum resistance furnace | |
| CN210046198U (en) | High-frequency electric furnace preheating device for welding robot to weld thick-wall weldment | |
| KR100353763B1 (en) | Dc-heated metallurgical vessel with base electrode | |
| JP5473271B2 (en) | Electric heating device | |
| CN114956524B (en) | Tin bath equipment, float glass production line and float glass production process | |
| US20090250453A1 (en) | Electric conduction heating device | |
| US2508004A (en) | Electric salt bath furnace | |
| KR101159968B1 (en) | Cooling Panel of Electric Furnace | |
| CN213657496U (en) | Heating furnace capable of heating uniformly | |
| CN221484185U (en) | Immersion heating unit | |
| RU32953U1 (en) | Electric heater | |
| CN218097251U (en) | Intermediate frequency steel shell furnace | |
| JP2895065B2 (en) | Immersion heater for non-ferrous metal melt | |
| JPS6022557Y2 (en) | Water cooled electrode for furnace | |
| CN216620688U (en) | Cold quick-witted basin of going up of crack control formula ring | |
| KR20130003363A (en) | Induction heating coil enabling to open and close for heating steel sheet | |
| CN117781686A (en) | Immersion heating unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |