CN201293542Y - Electric furnace - Google Patents
Electric furnace Download PDFInfo
- Publication number
- CN201293542Y CN201293542Y CNU2008201239560U CN200820123956U CN201293542Y CN 201293542 Y CN201293542 Y CN 201293542Y CN U2008201239560 U CNU2008201239560 U CN U2008201239560U CN 200820123956 U CN200820123956 U CN 200820123956U CN 201293542 Y CN201293542 Y CN 201293542Y
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- furnace shell
- furnace
- heater
- shell
- refractory masses
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Abstract
An electric stove includes an electric stove body. The lateral wall of the electric stove body slopes inward along a direction from top to bottom, and the electric stove body includes: a stove shell, wherein, the stove shell has a product export and a slag export, the top of the furnace shell is open, and a refractory material layer is provide on the lateral wall and bottom wall of the furnace shell; a furnace cover, which is provided on top of the furnace shell to cover the open top of furnace shell; a flexible framework, which is provided at the outside of the flexible framework to hoop the furnace shell; and electrodes, thrilling through the furnace cover from the above part of the oven shell to extend in the furnace body and capable of moving in the top and bottom direction. The electric stove body of the utility model has good expansion character (that is, furnace expansion stability, uniformity and synchronization), thereby increasing furnace life, reducing maintenance work, and saving costs.
Description
Technical field
The utility model relates to a kind of electric furnace, relates in particular to a kind of good electric furnace of bulk expansion performance of body of heater.
Background technology
Electric furnace is widely used for the Metal Melting field, for example is used for the melting of ferronickel, special steel and other multiple non-ferrous metal.
The body of heater of electric furnace has furnace shell usually and is arranged on the interior flame retardant coating formation of furnace shell, for example, Chinese patent application CN101029794 discloses a kind of electric arc furnaces, and the side wall of furnace of above-mentioned electric furnace is generally vertical wall, that is to say that side wall of furnace becomes vertical relation substantially with horizontal plane.Because in fusion process, temperature in the body of heater is very high, and very big expansion can take place body of heater, and the shape with traditional body of heater of upright side walls does not meet its expansion curve, therefore the bulk expansion of body of heater is inhomogeneous, unstable and asynchronous, be the bulk expansion poor performance, thus body of heater easy deformation under expansion, for example cracking, cause the life-span of body of heater to be reduced thus easily, maintenance is frequent, has reduced efficient, has increased cost.
The utility model content
The utility model is intended to solve at least one of the above-mentioned problems in the prior art.
For this reason, a purpose of the present utility model is to propose a kind of electric furnace with stable, synchronous, even, that the bulk expansion performance the is good body of heater that expands.
Comprise according to electric furnace of the present utility model: body of heater, described side wall of furnace slopes inwardly and described body of heater comprises: furnace shell along the top-down direction, described furnace shell has product discharge port and slag discharge port, and the top of furnace shell is opened wide, and the sidewall of described furnace shell and diapire are provided with refractory masses; Bell, described bell are arranged on the top of furnace shell the open top with the capping furnace shell; And elastic frame, described elastic frame is arranged on the furnace shell outside to wale furnace shell; And electrode, described electrode passes described bell and stretches in the described body of heater and can move along the vertical direction from the top of described body of heater.
In addition, also have following additional technical feature according to the utility model body of heater:
Described body of heater is a hexahedral shape.
Described elastic frame comprises: heel post, and described heel post is provided with the both lateral sides of furnace shell respectively;
Cross-tie, described cross-tie connect the heel post of both lateral sides respectively along horizontal direction from the above and below of furnace shell; Side clamping beam, described side clamping beam are arranged on the lateral outer side of heel post and the end of extending the cross-tie that stretches out from heel post with the above and below that is connected to furnace shell along the longitudinal direction of furnace shell; The end column, described end column is provided with vertical both sides of furnace shell respectively; Longitudinal tie, described longitudinal tie connect the end column that is positioned at vertical both sides respectively along the longitudinal direction from the furnace shell above and below; With the end clamping beam, described end clamping beam is arranged on vertical outside of end column and the end of extending the longitudinal tie that stretches out from the end column with the above and below that is connected to furnace shell along horizontal direction.
The two ends of described cross-tie are passed the side clamping beam that is positioned at the furnace shell both lateral sides respectively and are stretched out from the outside of side clamping beam, the two ends of described longitudinal tie are passed the end clamping beam that is positioned at the vertical both sides of furnace shell respectively and are stretched out from the outside of end clamping beam, the two ends of described longitudinal tie and cross-tie are formed with the threaded portion respectively, be connected with nut on the described threaded portion, wherein between nut and side clamping beam and end clamping beam, be respectively equipped with flexible member.
Described elastic component is the truncated cone shape volute spring.
Described body of heater further comprises and is arranged on the bearing that furnace shell bottom is used to support furnace shell.
Described refractory masses is made of magnesia fire-protecting wall.
Refractory masses on the furnace shell diapire comprises bottom refractory masses that contacts with the furnace shell diapire and the top refractory masses that is arranged on above the refractory masses of bottom, and its middle and lower part refractory masses is made of high-alumina refractory brick or schamotte brick and the top refractory masses is made of magnesia fire-protecting wall.
Refractory masses on the described furnace shell sidewall is complied with the shape of furnace shell, and the cross section of the refractory masses on the furnace shell diapire is an antiarch shape.
Described body of heater further comprise along circumferentially and/or above-below direction be arranged on cooling jacket between the refractory masses on furnace shell sidewall and the furnace shell sidewall.
At least have one of following advantage according to the utility model electric furnace:
According to electric furnace of the present utility model, side wall of furnace forms along direction from the top down and slopes inwardly, it is the truncated cone shape that is shaped as substantially of body of heater, for example, at body of heater is under the hexahedral situation, four sides of body of heater are up big and down small trapezoidal shape, and in the outer setting of furnace shell wale the elastic frame of furnace shell, combination by sloped sidewall and elastic frame, can make that the bulk expansion performance of body of heater is good, promptly furnace expansion is stable, even, synchronous, thereby the life-span of body of heater improves, reduce maintenance work, saved cost.
According to electric furnace of the present utility model, elastic frame is made of heel post, side clamping beam and cross-tie, end column, end clamping beam and longitudinal tie, and not only can wale furnace shell, on all directions, adapt to the distortion of body of heater, and also simple in structure.
According to electric furnace of the present utility model, by between tie rod end and clamping beam, flexible member being set, can further increase the elasticity of whole framework, by regulating the distortion that flexible member can adapt to body of heater better.
According to electric furnace of the present utility model, refractory masses is divided into two-layerly on the diapire of furnace shell, and lower floor's refractory material is high-alumina refractory brick or schamotte brick, and price is lower, and cost further reduces.
According to electric furnace of the present utility model,, can cool off furnace shell well by between refractory masses and furnace shell, cooling jacket being set on the furnace shell sidewall.
Additional aspect of the present utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Description of drawings
Fig. 1 is that the master according to the electric furnace of the utility model embodiment looks cross-sectional schematic;
Fig. 2 is along the cutaway view of the line A-A in the electric furnace shown in Figure 1, has wherein removed electrode;
Fig. 3 is according to the side-looking cross-sectional schematic of the electric furnace of the utility model embodiment.
The specific embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the utility model, and can not be interpreted as restriction of the present utility model.
Need to prove, in the utility model, term " on ", position relations such as D score, " laterally ", " vertically ", " outside ", " side ", " end " are for based on position shown in the drawings relation, only be the utility model for convenience of description, and can not be interpreted as restriction of the present utility model.
Below with reference to the electric furnace of accompanying drawing description according to the utility model embodiment.
As Figure 1-3, comprise body of heater 20 and electrode 10 according to the electric furnace of the utility model embodiment, electrode 10 is positioned at the top of body of heater 20, and stretches into body of heater inside from body of heater 20 tops.Electrode 10 can move along the vertical direction, so that change is stretched into the degree of depth of body of heater 20 inside and extracted out in body of heater 20.The installation of electrode 10 and move mode can adopt any known suitable method in this area, give unnecessary details no longer in detail here.
Describe body of heater 20 below in detail according to the electric furnace of the utility model embodiment.
The sidewall of body of heater 20 slopes inwardly along direction from the top down, it is the truncated cone shape that is shaped as substantially of body of heater 20, for example, in the example shown in Fig. 1 and 2, body of heater 20 is a hexahedral shape, thereby being shaped as of body of heater 20 cuts a rectangular pyramid shape substantially, and promptly four of body of heater 20 sides are up big and down small trapezoidal shape.
Body of heater 20 according to the electric furnace of the utility model embodiment comprises furnace shell 1, is arranged on the refractory masses 2 on furnace shell 1 sidewall and the diapire, bell 7, and elastic frame.
Bell 7 is arranged on the top of furnace shell 1, is used for the open top end of capping furnace shell.As shown in Figure 2, be formed with the electrode jack 711 that is used in body of heater 20, supplying with the inlet 710 of melting raw material and is used to insert electrode 10 on the bell 7.Yet, need to prove that the inlet that is used for supply melting raw material in body of heater 20 is not limited to be formed on bell 7, for example also can be formed on the sidewall of furnace shell 1, this can understand easily for those of ordinary skill in the art.
According to the metal difference that electric furnace is used to smelt, can select any suitable refractory material.In embodiment more of the present utility model, refractory masses 2 for example can be made of magnesia fire-protecting wall.In other embodiment of the present utility model, refractory masses on the diapire of furnace shell 1 is two-layer: bottom refractory masses 211 that contacts with furnace shell 1 diapire and the top refractory masses 210 that is arranged on above the bottom refractory masses 211, top refractory masses 210 can be made of the magnesia fire-protecting wall the same with sidewall, and bottom refractory masses 211 is made of high-alumina refractory brick or schamotte brick.Compare with magnesia fire-protecting wall, the high-alumina refractory brick cost is low, therefore can reduce the cost of whole body of heater 20, and the schamotte brick price is more cheap, therefore can further reduce cost.
As shown in Figure 3, in an embodiment of the present utility model, the cross section of the refractory masses 2 on furnace shell 1 diapire (for example, the cross section of the above-below direction among Fig. 2) is an antiarch shape, and the refractory masses 2 on the furnace shell sidewall is complied with the shape of furnace shell sidewall.
Elastic frame is arranged on furnace shell 1 outside, is used to wale furnace shell 1.For example, furnace shell 1 can be made of the polylith metallic plate, and each metallic plate is placed in the elastic frame, lays refractory masses 2 then on the sidewall of furnace shell 1 and diapire.Therefore, thus elastic frame can either prevent that furnace shell 1 from splitting by banding furnace shell 1, can adapt to the expansion of furnace shell 1 again.
As Figure 1-3, in an embodiment of the present utility model, elastic frame comprises heel post 6a, end column 6b, cross-tie 3a and longitudinal tie 3b, side clamping beam 11a and end clamping beam 11b.
Heel post 6a is separately positioned on the both lateral sides (both sides up and down among Fig. 2 of furnace shell 1, the left and right sides among Fig. 3), cross-tie 3a respectively from the below of the top of furnace shell 1 end face and furnace shell 1 bottom surface along the horizontal direction of furnace shell (as the above-below direction Fig. 2, left and right directions among Fig. 3) top and bottom of the heel post 6a of connection furnace shell 1 both lateral sides, side clamping beam 11a is separately positioned on the lateral outer side of heel post 6a and extends the end of the cross-tie 3a that stretches out from heel post 6a with the above and below that is connected to furnace shell 1 along the longitudinal direction, thus, wale furnace shell 1 in a lateral direction.
That is to say, above and below at furnace shell 1, the cross-tie 3a of elastic frame connects the top and bottom of the transverse upright 6a of both lateral sides along horizontal direction, longitudinal tie 3b connects the top and bottom of the end column 6b of vertical both sides along the longitudinal direction, thereby connect and the end of the heel post 6a of tension both lateral sides by side clamping beam 11a, connect and strain the end of end column 6b of vertical both sides so that wale furnace shell 1 by end clamping beam 11b.Certainly, the cross-tie 3a of furnace shell 1 top is in different planes with longitudinal tie 3b, and same, the cross-tie 3a of furnace shell 1 below also is in different planes with longitudinal tie 3b.In addition, the cross-tie 3a of furnace shell 1 top and longitudinal tie 3b can pass bell 7.
As Figure 1-3, the two ends of cross-tie 3a are passed the top and bottom of heel post 6a respectively and are stretched out from the side clamping beam 11a outside, the two ends of cross-tie 3a are formed with the threaded portion respectively, be combined with nut 5 on the described threaded portion, be provided with elastic component 4 between nut 5 and the heel post 6a, for example the taper volute spring.By rotation nut 5, can regulate the pulling force of cross-tie 3a, thereby regulate horizontal clamping force furnace shell 1 to transverse upright 6a.
Similarly, the two ends of longitudinal tie 3b are passed the top and bottom of end column 6b respectively and are stretched out from the end clamping beam 11b outside, and the two ends of longitudinal tie 3b are formed with the threaded portion, are combined with nut 5 on the described threaded portion, be provided with elastic component 4 between nut 5 and the end column 6b, for example spring.By rotation nut 5, can regulate the pulling force of longitudinal tie 3b opposite end column 6b, thereby regulate vertical clamping force furnace shell 1.
As shown in figures 1 and 3, according to an embodiment of the present utility model, body of heater 20 further comprises bearing 9, and bearing 9 is arranged on the furnace shell bottom and is used to support furnace shell 1.At this moment, the cross-tie 3a of furnace shell 1 below and longitudinal tie 3b can pass bearing 9.
As shown in figures 1 and 3, according to another embodiment of the present utility model, can be between furnace shell 1 sidewall and refractory masses along cooling jacket 8 circumferentially is set, cooling jacket 8 perhaps is set along the vertical direction, perhaps along circumferential and above-below direction cooling jacket 8 is set simultaneously, thus body of heater 20 is cooled off.
Electric furnace according to the utility model embodiment, by 20 side wall of furnace being formed inclination, and combine with the elastic frame of waling furnace shell 1, can make that the bulk expansion performance of body of heater 20 is good, the expansion that is body of heater 20 is stable, even, synchronous, thereby the life-span of body of heater 20 improves, and has reduced maintenance work, has saved cost.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that under the situation that does not break away from principle of the present utility model and spirit and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claims and equivalent thereof.
Claims (10)
1, a kind of electric furnace is characterized in that, comprising:
Body of heater, described side wall of furnace slopes inwardly and described body of heater comprises along the top-down direction:
Furnace shell, described furnace shell have product discharge port and slag discharge port, and the top of furnace shell is opened wide, and the sidewall of described furnace shell and diapire are provided with refractory masses;
Bell, described bell are arranged on the top of furnace shell the open top with the capping furnace shell; With
Elastic frame, described elastic frame are arranged on the furnace shell outside to wale furnace shell; And
Electrode, described electrode pass described bell and stretch in the described body of heater and can move along the vertical direction from the top of described body of heater.
2, electric furnace according to claim 1 is characterized in that, described body of heater is a hexahedral shape.
3, electric furnace according to claim 1 and 2 is characterized in that, described elastic frame comprises:
Heel post, described heel post is provided with the both lateral sides of furnace shell respectively;
Cross-tie, described cross-tie connect the heel post that is positioned at both lateral sides from the above and below of furnace shell respectively along horizontal direction;
Side clamping beam, described side clamping beam are arranged on the lateral outer side of heel post and the end of extending the cross-tie that stretches out from heel post with the above and below that is connected to furnace shell along the longitudinal direction of furnace shell;
The end column, described end column is provided with vertical both sides of furnace shell respectively;
Longitudinal tie, described longitudinal tie connect the end column that is positioned at vertical both sides respectively along the longitudinal direction from the furnace shell above and below; With
End clamping beam, described end clamping beam are arranged on vertical outside of end column and the end of extending the longitudinal tie that stretches out from the end column with the above and below that is connected to furnace shell along horizontal direction.
4, electric furnace according to claim 3, it is characterized in that, the two ends of described cross-tie are passed the side clamping beam that is positioned at the furnace shell both lateral sides respectively and are stretched out from the outside of side clamping beam, the two ends of described longitudinal tie are passed the end clamping beam that is positioned at the vertical both sides of furnace shell respectively and are stretched out from the outside of end clamping beam, the two ends of described longitudinal tie and cross-tie are formed with the threaded portion respectively, described threaded portion is connected with nut, wherein is respectively equipped with flexible member between nut and side clamping beam and end clamping beam.
5, electric furnace according to claim 4 is characterized in that, described elastic component is the truncated cone shape volute spring.
6, electric furnace according to claim 1 is characterized in that, described body of heater further comprises and is arranged on the bearing that furnace shell bottom is used to support furnace shell.
7, electric furnace according to claim 1 is characterized in that, described refractory masses is made of magnesia fire-protecting wall.
8, electric furnace according to claim 1, it is characterized in that, refractory masses on the described furnace shell diapire comprises bottom refractory masses that contacts with the furnace shell diapire and the top refractory masses that is arranged on above the refractory masses of bottom, and its middle and lower part refractory masses is made of high-alumina refractory brick or schamotte brick and the top refractory masses is made of magnesia fire-protecting wall.
9, electric furnace according to claim 1 is characterized in that, the refractory masses on the described furnace shell sidewall is complied with the shape of furnace shell sidewall, and the cross section of the refractory masses on the furnace shell diapire is an antiarch shape.
10, electric furnace according to claim 1 is characterized in that, described electric furnace also comprise along circumferentially and/or above-below direction be arranged on cooling jacket between the refractory masses on furnace shell sidewall and the furnace shell sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201239560U CN201293542Y (en) | 2008-11-28 | 2008-11-28 | Electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201239560U CN201293542Y (en) | 2008-11-28 | 2008-11-28 | Electric furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201293542Y true CN201293542Y (en) | 2009-08-19 |
Family
ID=41007023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201239560U Expired - Fee Related CN201293542Y (en) | 2008-11-28 | 2008-11-28 | Electric furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201293542Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022005672A1 (en) * | 2020-07-01 | 2022-01-06 | Systems Spray-Cooled, Inc. | Sloped sidewall for a furnace |
-
2008
- 2008-11-28 CN CNU2008201239560U patent/CN201293542Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022005672A1 (en) * | 2020-07-01 | 2022-01-06 | Systems Spray-Cooled, Inc. | Sloped sidewall for a 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 |
Granted publication date: 20090819 Termination date: 20141128 |
|
| EXPY | Termination of patent right or utility model |