CN205115525U - Electric arc furnace tapping of eccentric end pallet means - Google Patents
Electric arc furnace tapping of eccentric end pallet means Download PDFInfo
- Publication number
- CN205115525U CN205115525U CN201520820436.5U CN201520820436U CN205115525U CN 205115525 U CN205115525 U CN 205115525U CN 201520820436 U CN201520820436 U CN 201520820436U CN 205115525 U CN205115525 U CN 205115525U
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- China
- Prior art keywords
- pallet
- dividing plate
- tray
- arc furnace
- tapping
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Furnace Charging Or Discharging (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model discloses an electric arc furnace tapping of eccentric end pallet means, including setting up the tray in the tapping hole below, surface mounting has the baffle that is used for clogging gap between tapping hole and the tray on the tray, tray upper surface edge is opened there is the mounting hole, the baffle lower surface is equipped with the erection column corresponding with the mounting hole. The utility model discloses on the tray surface mounting be used for clogging the baffle in gap between tapping hole and the tray, select the baffle of suitable thickness according to the actual production in service behavior, make the baffle effectively fill because gap that long -term swing of tray and expend with heat and contract with cold caused, it packs consequently to have avoided flows from the gap, has avoided the emergence of badly bleeding accident.
Description
Technical field
The utility model relates to a kind of electric arc furnace auxiliary equipment, is specifically related to a kind of eccentric-bottom arc furnace tapping pallet apparatus.
Background technology
Along with developing rapidly of modern furnace outer refining technology, the effect of electric arc furnace mainly transfers to bears the fusing of steel scrap and the oxidation of molten steel.In electric arc furnace smelting, oxidation sludge has very strong oxidisability, and the metallurgical effect for follow-up refining is very harmful.For realizing slag free tapping, just there is Eccentric Bottom Tapping In Eaf technology (i.e. EccentricBottomTapping is called for short EBT) eighties in last century.EBT tapping electric arc furnace smelting adopts and stays steel remaining slag operation, not only accomplish slag free tapping, also there is saving refractory materials, save melting electric consumption, reduce gas content in steel, boost productivity, simplify furnace equipment, reduce graphite electrode consumption, improve the advantages such as yield of alloy.
EBT electric arc furnace makes the tapping spout of conventional arc stove into steel box, and tap hole is downward in steel box bottom vertical.Tap hole bottom is provided with tap hole closing mechanism, opening and closing tap hole, and steel box center of top is provided with gathering hole, so that the filler operation and maintenance of tap hole.
Before smelting, cleaning tap hole, determines without residue and residual steel, then closes tap hole pallet, adds tap hole filler (magnalium peridotites) from steel box gathering hole, forms steamed bun shape at furnace bottom.When liquid steel temperature, composition reach tapping require time, tapping can be prepared.Tapping process is: first transport to below tap hole by ladle, before opening tap hole, stove is made to roll tiltedly about 3 ~ 5 ° to tap hole, form enough ferrostatic pressures, open tap hole pallet, tap hole filler automatically falls under ferrostatic pressure effect, and molten steel flows into ladle, realizes automatic casting tapping.When molten steel go out to require about 95% time return rapidly and incline to prevent slag, return process of inclining also have an appointment 5% molten steel and a little slag flow in ladle, stove shakes to examine just afterwards distant and out of sightly safeguards tap hole, closes tap hole pallet, filled, dress steel scrap, starting the arc melting again.
Swing for a long time due to tap hole pallet and expand with heat and contract with cold, producing gap between tap hole and pallet, filler flows out from gap by body of heater vibrations, easily causes badly bleeding accident.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of eccentric-bottom arc furnace tapping pallet apparatus, can solve the gap problem between tap hole and pallet, avoid the generation of badly bleeding accident.
For achieving the above object, the utility model provides following technical scheme:
A kind of eccentric-bottom arc furnace tapping pallet apparatus, comprise the pallet be arranged on below tap hole, described tray upper surface is provided with the dividing plate for clogging gap between tap hole and pallet, described tray upper surface edge has open holes, and described dividing plate lower surface is provided with the erection column corresponding with open holes.
As further optimization design of the present utility model, described dividing plate is the disc plate identical with pallet size, and described erection column is four and is evenly arranged in dividing plate lower surface edge along dividing plate circumferential direction.
As further optimization design of the present utility model, the upper surface of described dividing plate has some cannelures, and the degree of depth of cannelure is 1-2mm.
As further optimization design of the present utility model, described dividing plate is graphite cake.
As further optimization design of the present utility model, the thickness of described dividing plate is 25-30mm.
The beneficial effects of the utility model are:
The utility model has installed the dividing plate for clogging gap between tap hole and pallet at tray upper surface, the dividing plate of suitable depth is selected according to actual production service condition, dividing plate can effectively be filled up swing for a long time and the gap of causing of expanding with heat and contract with cold due to pallet, therefore avoid filler to flow out from gap, avoid the generation of badly bleeding accident.In addition, the upper surface of dividing plate has some cannelures, improves the friction resistance of baffle surface and filler, decreases the slip of filler, further prevents filler to leak the generation of material situation.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and beneficial effect clearly, the utility model provides following accompanying drawing to be described:
Fig. 1 is the structural representation of the eccentric-bottom electric arc furnace that have employed tapping pallet apparatus of the present utility model;
Fig. 2 is the structural representation of tapping pallet apparatus of the present utility model;
Fig. 3 is the structural representation of pallet;
Fig. 4 is the structural representation of dividing plate lower surface;
Fig. 5 is the structural representation of dividing plate upper surface.
In figure: 1, tap hole, 2, pallet, 3, dividing plate, 4, open holes, 5 erection columns, 6, cannelure, 7, eccentric-bottom electric arc furnace, 8, ladle, 9, pallet swing arm.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
Fig. 1 is the structural representation of the eccentric-bottom electric arc furnace that have employed tapping pallet apparatus of the present utility model, Fig. 2 is the structural representation of tapping pallet apparatus of the present utility model, Fig. 3 is the structural representation of pallet, Fig. 4 is the structural representation of dividing plate lower surface, as shown in the figure, a kind of eccentric-bottom arc furnace tapping pallet apparatus, comprise the pallet 2 be arranged on below tap hole 1, described pallet 2 upper surface is provided with the dividing plate 3 for clogging gap between tap hole 1 and pallet 2, described pallet 2 top surface edge has open holes 4, described dividing plate 3 lower surface is provided with the erection column 5 corresponding with open holes 4, described dividing plate 3 is the disc plate identical with pallet 2 size, described erection column 5 is four and is evenly arranged in dividing plate 3 lower surface edge along dividing plate 3 circumferential direction.
Select the dividing plate 3 of suitable depth (such as 25-30mm) according to actual production service condition, dividing plate 3 effectively can be filled up and swing for a long time and the gap of causing of expanding with heat and contract with cold due to pallet 2, therefore avoid filler and flow out from gap, avoid the generation of badly bleeding accident.
Described dividing plate 3 can select graphite cake, waste and old Graphite Electrodes can be utilized to make, graphite cake Heat stability is good, and every block graphite cake uses can reach more than 10,000 heats.
In addition, as shown in Figure 5, the upper surface of dividing plate 3 has some cannelures 6, the degree of depth of cannelure 6 is 1-2mm, cannelure 6 improves dividing plate 3 surface and the friction resistance of filler, decreases the slip of filler, further prevents filler to leak the generation of material situation.
What finally illustrate is, above preferred embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model by above preferred embodiment, but those skilled in the art are to be understood that, various change can be made to it in the form and details, and not depart from the utility model claims limited range.
Claims (5)
1. an eccentric-bottom arc furnace tapping pallet apparatus, comprise the pallet (2) being arranged on tap hole (1) below, it is characterized in that: described pallet (2) upper surface is provided with the dividing plate (3) for clogging gap between tap hole (1) and pallet (2), described pallet (2) top surface edge has open holes (4), and described dividing plate (3) lower surface is provided with the erection column (5) corresponding with open holes (4).
2. eccentric-bottom arc furnace tapping pallet apparatus according to claim 1, it is characterized in that: described dividing plate (3) is the disc plate identical with pallet (2) size, and described erection column (5) is four and is evenly arranged in dividing plate (3) lower surface edge along dividing plate (3) circumferential direction.
3. eccentric-bottom arc furnace tapping pallet apparatus according to claim 2, is characterized in that: the upper surface of described dividing plate (3) has some cannelures (6), and the degree of depth of cannelure (6) is 1-2mm.
4. the eccentric-bottom arc furnace tapping pallet apparatus according to claims 1 to 3 any one, is characterized in that: described dividing plate (3) is graphite cake.
5. eccentric-bottom arc furnace tapping pallet apparatus according to claim 4, is characterized in that: the thickness of described dividing plate (3) is 25-30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520820436.5U CN205115525U (en) | 2015-10-23 | 2015-10-23 | Electric arc furnace tapping of eccentric end pallet means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520820436.5U CN205115525U (en) | 2015-10-23 | 2015-10-23 | Electric arc furnace tapping of eccentric end pallet means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205115525U true CN205115525U (en) | 2016-03-30 |
Family
ID=55571147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520820436.5U Active CN205115525U (en) | 2015-10-23 | 2015-10-23 | Electric arc furnace tapping of eccentric end pallet means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205115525U (en) |
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2015
- 2015-10-23 CN CN201520820436.5U patent/CN205115525U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |