CN103436710B - Water-free combined bottom water tank for electroslag remelting - Google Patents
Water-free combined bottom water tank for electroslag remelting Download PDFInfo
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- CN103436710B CN103436710B CN201310420376.3A CN201310420376A CN103436710B CN 103436710 B CN103436710 B CN 103436710B CN 201310420376 A CN201310420376 A CN 201310420376A CN 103436710 B CN103436710 B CN 103436710B
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- water tank
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Abstract
The invention relates to a water-free combined bottom water tank for electroslag remelting. The bottom water tank comprises a hollow shell with an opening at the top, wherein a graphite supporting block which is used for bearing a crystallizer and slag and has a high melting point and a low heat conductivity coefficient is arranged in the shell; a lifting device used for adjusting the height of the supporting block is arranged in the shell; aluminum oxide powder is filled between the supporting block and the inner walls of the shell. The bottom water tank has the beneficial effects that the supporting block, instead of a copper board, is used, thus omitting a cooling system of the bottom water tank; the supporting block is repairable, can be used multiple times, is low in cost and has a simple structure, thus improving the efficiency and safety of electroslag remelting.
Description
Technical field
The present invention relates to water tank at the bottom of a kind of bipolar series electroslag remelting, particularly relate to water tank at the bottom of a kind of anhydrous compositions formula esr.
Background technology
At present, traditional bottom water tank for electric slag resmelting back up pad is all be made up of copper material, its fusing point is 1083 DEG C, remelting molten steel and slag temperature are generally at about 1700 DEG C, therefore back up pad needs water-cooling system to cool it, be melted to avoid back up pad or slow down corrode prolongs life, this is the problem that puzzlement traditional bottom water tank uses always.The effective way before addressed this problem mainly contains increases back up pad thickness, improve end water tank water cooling system structure, strengthen the cooling to back up pad, as Chinese utility model patent CN2705467Y discloses a kind of bottom water tank for electric slag resmelting, copper back up pad thickness increases and prevents from puncturing distortion to 60mm by it, and cooling water channel increases guide path and strengthens cooling, adopts tension swivel nut and on base plate, install seal cap etc. solving sealing and the problem such as leaking.But the back up pad Water-cooled bottom water tank of traditional employing copper material still exist back up pad distortion, aging, produce the problems such as corrode hole or breakdown and seal aging seepage, and designing and making is complicated, and cost is high.In addition, the striking of note slag needs the liquid slag of melting to pour in the back up pad in crystallizer, due to copper thermal conductivity high (0.94), add water cooling, slag heat is scattered and disappeared fast, cause striking to play stream difficulty and increase, process is slightly slow just may be failed, need begin the beguine, too much condensation slag also makes the minimizing of effective quantity of slag that technology stability is deteriorated, and easily forms steel ingot dreg defect.
Summary of the invention
For solving the deficiencies in the prior art, the invention provides water tank at the bottom of a kind of anhydrous compositions formula esr, effectively can solve the distortion of traditional bottom water tank copper back up pad, puncture and the problem such as cooling system seepage puzzlement.
For achieving the above object, water tank at the bottom of anhydrous compositions formula esr of the present invention, comprises inner hollow and open-topped shell, be provided with in the inside of shell for carry crystallizer and slag, the back-up block of graphite material.Adopt the program, use back-up block to replace copper back up pad, high temperature when it can bear remelting, avoids copper sheet deformation and breakdown problem, and without the need to cooling system under back-up block, thus avoid the puzzlement of cooling system leakage problems.In addition, back-up block adopts graphite material, and graphite fusing point (3727 DEG C) is far above remelting molten steel and slag temperature (about 1700 DEG C), without the need to water-cooling system, eliminate and use copper coin material to puncture to leak and cause the risk of security incident, graphite heat conducting coefficient low (0.057), good heat insulating, note slag striking heat loss can be made few, the slag temperature hold-time is long, makes arc process become easy, and bottom crust block reduces, the reflow process quantity of slag is stablized, and Above The Ingot Bottom dreg defect probability reduces; In addition, graphite block is that solid melts is very high, and C diffusion at high temperature could occur, because arcing time is shorter, graphite block and molten steel also very of short duration for duration of contact, therefore diffusion couple composition influence is very little, and it is not the graphite line coefficient of expansion is little, yielding, be conducive to technological process and carry out smoothly.
As improvement of the present invention, in described shell, be provided with the lifting device that described back-up block is elevated.
As the restriction to aforesaid way, described lifting device comprises the back up pad supporting described back-up block, and is positioned at the hoisting appliance that the driving back up pad below back up pad moves up and down.
As the restriction to aforesaid way, described hoisting appliance comprises the nut being fixed on outer casing bottom, and with the screw rod of nut screw connection, described screw rod stretches into one end overhead in shell below back up pad.
As the restriction to aforesaid way, below back up pad, be fixedly connected with the sleeve be set on screw rod, the graphite block of back up pad and carrying thereof can be made like this to rotate, thus improve the operability of mechanism.
As improvement of the present invention, the outside surface of shell is provided with cooling channel, it can keep the intensity of graphite block further, increases the service life.
As improvement of the present invention, between described back-up block and outer casing inner wall, be filled with alundum, by this structure, use alundum by the gap filling between graphite block and shell, reach buffering and firm effect.
In sum, adopt technical scheme of the present invention, efficiently solve the distortion of traditional bottom water tank copper back up pad, puncture and the problem such as cooling system generation seepage puzzlement, and when graphite panel does not meet service requirements because of pitting corrosion etc., table top can be redressed into the shape of needs, and utilize lifting device to adjust its height, repeatedly can repair use, further save equipment cost.
Accompanying drawing explanation
Do further to describe in detail to the present invention below in conjunction with the drawings and the specific embodiments:
Fig. 1 is the structural representation of the embodiment of the present invention;
In figure: 1, shell; 2, graphite block; 3, back up pad; 4, nut; 5, screw rod; 6, sleeve; 7, cooling water channel; 71, cooling water inlet pipe; 72, cooling water outlet pipe; 8, alundum.
Embodiment
The present invention relates to water tank at the bottom of a kind of anhydrous compositions formula esr, as shown in Figure 1, it comprises inner hollow and open-topped shell 1, in shell 1, be provided with graphite block 2 for carrying crystallizer and slag molten steel.The mating shapes of graphite block 2 and shell 1, can be square or circular etc., being provided with for adjusting graphite block 2 in the lifting device of shell 1 inner height below graphite block 2.
Lifting device comprises and being arranged on below graphite block 2 for supporting the back up pad 3 of graphite block 2, and the hoisting appliance be positioned at below back up pad 3, this hoisting appliance comprises the nut 4 be connected in bottom shell 1, with the screw rod 5 be installed in nut 4, screw rod 5 top be connected bottom back up pad 3 to support back up pad 3, when twisting screw rod 5 and making it rotate, back up pad 3 can be driven to produce and to move up and down, thus regulate the height of graphite block 2 in shell 1 be placed in back up pad 3.Screw rod 5 and the junction of back up pad 3 are provided with the sleeve 6 be fixed in back up pad 3, screw rod 5 inserts in sleeve 6, back up pad 3 can be made to rotate to insert centered by the screw rod 5 in sleeve 6, thus when graphite block 2 end face is repaired, add the convenience (square shell is needed back up pad 3 to rise to beyond shell 1) of work.
For keeping the working strength of graphite block 2 when bearing high temperature further, the outside surface of shell 1 is provided with cooling water channel 7, cooling water channel 7 can be arranged in the gamut of relative graphite block 2, when esr for graphite block 2 provides certain cooling around shell 1.Alundum 8 is filled with in graphite block 2 with the gap of shell 1 inwall.
During use, according to required shape, graphite block 2 end face is repaired, adjustment graphite block 2 highly makes its end face and shell 1 end face level, alundum 8 on filling between graphite block 2 and the inwall of shell 1, then crystallizer is positioned on graphite block 2, open cooling water inlet pipe 71 and cooling water outlet pipe 72, esr operation can be started.After finishing using, finishing can be re-started to the end face of graphite block 2 according to the needs of lower subjob, thus improve plant factor, cost-saving.
Certainly, except hoisting appliance open in the present embodiment also can adopt the replacement such as cylinder, hydro-cylinder.More than include within protection scope of the present invention.
Claims (6)
1.
water tank at the bottom of a kind of anhydrous compositions formula esr, comprise inner hollow and open-topped shell, it is characterized in that: the back-up block being provided with the graphite material for carrying crystallizer and slag in the inside of shell, is provided with the lifting device that described back-up block is elevated in described shell.
2.
according to water tank at the bottom of the anhydrous compositions formula esr described in claim 1, it is characterized in that: described lifting device comprises the back up pad supporting described back-up block, and be positioned at the hoisting appliance that the driving back up pad below back up pad moves up and down.
3.
according to water tank at the bottom of the anhydrous compositions formula esr described in claim 2, it is characterized in that: described hoisting appliance comprises the nut being fixed on outer casing bottom, and with the screw rod of nut screw connection, described screw rod stretches into one end overhead in shell below back up pad.
4.
according to water tank at the bottom of the anhydrous compositions formula esr described in claim 3, it is characterized in that: below back up pad, be fixedly connected with the sleeve be set on screw rod.
5.
according to water tank at the bottom of the anhydrous compositions formula esr described in claim 1, it is characterized in that: on the outside surface of shell, be provided with cooling channel.
6.
according to water tank at the bottom of the anhydrous compositions formula esr described in claim 1, it is characterized in that: between described back-up block and outer casing inner wall, be filled with alundum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310420376.3A CN103436710B (en) | 2013-09-16 | 2013-09-16 | Water-free combined bottom water tank for electroslag remelting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310420376.3A CN103436710B (en) | 2013-09-16 | 2013-09-16 | Water-free combined bottom water tank for electroslag remelting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103436710A CN103436710A (en) | 2013-12-11 |
| CN103436710B true CN103436710B (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310420376.3A Expired - Fee Related CN103436710B (en) | 2013-09-16 | 2013-09-16 | Water-free combined bottom water tank for electroslag remelting |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111663049B (en) * | 2020-06-22 | 2022-01-25 | 北京钢研高纳科技股份有限公司 | Cooling device and method for improving cooling strength of bottom of electroslag remelting ingot |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2705467Y (en) * | 2003-12-13 | 2005-06-22 | 内蒙古北方重工业集团有限公司 | Bottom water tank for electric slag resmelting |
| CN102851517A (en) * | 2012-08-28 | 2013-01-02 | 江苏兴达高温合金科技有限公司 | Electroslag arc-starting smelting method by multiple granular reducing slag by electroslag furnace |
-
2013
- 2013-09-16 CN CN201310420376.3A patent/CN103436710B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2705467Y (en) * | 2003-12-13 | 2005-06-22 | 内蒙古北方重工业集团有限公司 | Bottom water tank for electric slag resmelting |
| CN102851517A (en) * | 2012-08-28 | 2013-01-02 | 江苏兴达高温合金科技有限公司 | Electroslag arc-starting smelting method by multiple granular reducing slag by electroslag furnace |
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| Publication number | Publication date |
|---|---|
| CN103436710A (en) | 2013-12-11 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| 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: 20141224 Termination date: 20190916 |