CN202945301U - Cooling device of electroslag remelting crystallizer - Google Patents

Cooling device of electroslag remelting crystallizer Download PDF

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Publication number
CN202945301U
CN202945301U CN 201220644019 CN201220644019U CN202945301U CN 202945301 U CN202945301 U CN 202945301U CN 201220644019 CN201220644019 CN 201220644019 CN 201220644019 U CN201220644019 U CN 201220644019U CN 202945301 U CN202945301 U CN 202945301U
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Prior art keywords
cooling zone
crystallizer
cooling
water
electroslag remelting
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CN 201220644019
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Chinese (zh)
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李民华
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HUBEI SHANGDA MOULD MATERIAL TECHNOLOGY Co Ltd
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HUBEI SHANGDA MOULD MATERIAL TECHNOLOGY Co Ltd
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Abstract

The utility model provides a cooling device of an electroslag remelting crystallizer. An upper cooling zone (4), a middle cooling zone (5) and a lower cooling zone (6), which are independent from each other, are respectively arranged in a cavity between an inner wall (1) of the crystallizer and a jacket (3) of the crystallizer from top to bottom, an upper water inlet (7) is formed in the lower end of an outer sidewall of the upper cooling zone (4), an upper water outlet (8) is formed in the upper end of the outer sidewall of the upper cooling zone (4), a middle water inlet (9) is formed in the lower end of the outer sidewall of the middle cooling zone (5), a middle water outlet (10) is formed in the upper end of the outer sidewall of the middle cooling zone (5), a lower water inlet (11) is formed in the lower end of the outer sidewall of the lower cooling zone (6), and a lower water outlet (12) is formed in the upper end of the outer sidewall of the lower cooling zone (6). The cooling device has the characteristics that the water flow after being partitioned is accelerated, the cooling speed is accelerated, the cooling effect is better, and the product quality is improved.

Description

A kind of refrigerating unit of electroslag remelting crystalizer
Technical field
The utility model relates to a kind of refrigerating unit, relates in particular to a kind of refrigerating unit of electroslag remelting crystalizer, belongs to metallurgical technology field.
Background technology
To be metal electrode add the thermosetting molten drop by slag bath to esr passes melt cinder and form the molten bath, forces cooling rapid solidification to form steel ingot through the outer field water coolant of crystallizer.Primary process is for filling the slag of melting in the copper water mold, consumable electrode one end inserts in slag.Referring to Fig. 1, form the loop from power consumption, slag bath, metal pool, steel ingot, end water tank by short net wire and transformer.In galvanization, slag bath 14 heat releases are melted consumable electrode 15 terminations gradually, and molten metal pools drop, passes slag bath 14, falls into crystallizer, forms metal pool 16, is subjected to the water-cooled effect to solidify rapidly the formation steel ingot.For being filled with the cooling storehouse of water coolant, be provided with water inlet 17 and water outlet 18 on crystallizer inwall 1 between crystallizer inwall 1 and crystallizer overcoat 3.For high quality steel, especially the Corrosion Resistant Stainless Steel for Plastic Mould of nitrogen alloying, such steel is Martensite Stainless Steel, Cr content is up to more than 13%, component segregation is comparatively serious, esr process is wished the quick cooling component segregation that alleviates by process of setting, wishes again to slow down speed of cooling after solidifying and prevents from ftractureing bottom ESR ingot.And electroslag remelting crystalizer water-cooling jacket of the prior art is that crystallizer integral body is cooling, exist flow velocity slow, ESR ingot early solidification cooling intensity is not enough, and can not regulate the cooling intensity of ESR ingot different zones, easily causes ESR ingot bottom cracking during the remelting high quality steel.
As the Chinese patent notification number be: CN201473577U, the day for announcing is: the utility model patent on May 19th, 2010 discloses a kind of electroslag remelting crystalizer, include the chassis, it is characterized in that being fixedly connected with on the chassis out cylinder, red copper tapering cylinder is arranged in out cylinder, be connected with water inlet pipe and rising pipe on the out cylinder outer wall.The defective of this device is: cooled region is one-piece construction, cooling performance is not good, and the cooling temperature that is not easy to control each position is poor, can not control effectively to During Ingot Solidification and cooling intensity, make high quality steel ESR ingot bottom cracking, quality product is not high.
Summary of the invention
The purpose of this utility model is not good for existing all-in-one-piece cooling effect of cooler, the cooling temperature that is not easy to control each position is poor, defective and the deficiency that can not control effectively to During Ingot Solidification and cooling intensity, provide a kind of simple in structure, good cooling results, the cooling temperature of being convenient to control each position is poor, the refrigerating unit of a kind of electroslag remelting crystalizer that can control effectively to During Ingot Solidification and cooling intensity.
for achieving the above object, technical solution of the present utility model is: a kind of refrigerating unit of electroslag remelting crystalizer, comprise the crystallizer inwall, the chamber that the crystallizer inwall surrounds is crystallisation chamber, the arranged outside of crystallizer inwall has the crystallizer overcoat, described crystallizer inwall, be respectively arranged with separate cooling zone, top in cavity between the crystallizer overcoat from top to bottom, cooling zone, middle part and cooling zone, bottom, the outer side wall lower end of cooling zone, top is provided with the top water-in, the outer side wall upper end of cooling zone, top is provided with the top water outlet, the outer side wall lower end of cooling zone, middle part is provided with the middle part water-in, the outer side wall upper end of cooling zone, middle part is provided with the middle part water outlet, the outer side wall lower end of cooling zone, bottom is provided with lower water inlet, the outer side wall upper end of cooling zone, bottom is provided with the bottom water outlet.
Be equipped with transverse wall between cooling zone, described top and cooling zone, middle part and between cooling zone, middle part and cooling zone, bottom.
Described crystallizer inwall is made by red copper.
Described crystallizer overcoat and transverse wall are all made by carbon steel sheet.
The ratio that the height of cooling zone, described top, cooling zone, middle part and cooling zone, bottom accounts for the crystallizer total height is respectively: 30%, 30% and 40%.
Width between described crystallizer inwall and crystallizer overcoat is 40 millimeters-60 millimeters.
The beneficial effects of the utility model are:
1, the utility model is provided with cooling zone, top, cooling zone, middle part, cooling zone, bottom between the outer wall that has electroslag remelting crystalizer now and inwall, each cooling zone is provided with water-in and water outlet, after subregion, cooling-water flowing speed is accelerated, and has accelerated speed of cooling, and cooling performance is better.
2, the utility model is simple in structure, realize effective control to During Ingot Solidification in crystallizer and cooling intensity by controlling each cooling zone flow velocity, discharge, water temperature, and water temperature that can be by improving crystallizer bottom cooled region and reduce flow, prevent from ftractureing bottom the high quality steel ESR ingot, quality product is improved.
Description of drawings
Fig. 1 is the structural representation of prior art.
Fig. 2 is structural representation of the present utility model.
In figure: crystallizer inwall 1, crystallisation chamber 2, crystallizer overcoat 3, cooling zone, top 4, cooling zone, middle part 5, cooling zone, bottom 6, top water-in 7, top water outlet 8, middle part water-in 9, middle part water outlet 10, lower water inlet 11, bottom water outlet 12, transverse wall 13, slag bath 14, electrode 15, metal pool 16, water inlet 17, water outlet 18.
Embodiment
Below in conjunction with description of drawings and embodiment, the utility model is described in further detail:
referring to Fig. 2, the refrigerating unit of a kind of electroslag remelting crystalizer of the present utility model, comprise crystallizer inwall 1, the chamber that crystallizer inwall 1 surrounds is crystallisation chamber 2, the arranged outside of crystallizer inwall 1 has crystallizer overcoat 3, described crystallizer inwall 1, be respectively arranged with separate cooling zone, top 4 in cavity between crystallizer overcoat 3 from top to bottom, cooling zone 5, middle part and cooling zone, bottom 6, the outer side wall lower end of cooling zone, top 4 is provided with top water-in 7, the outer side wall upper end of cooling zone, top 4 is provided with top water outlet 8, the outer side wall lower end of cooling zone 5, middle part is provided with middle part water-in 9, the outer side wall upper end of cooling zone 5, middle part is provided with middle part water outlet 10, the outer side wall lower end of cooling zone, bottom 6 is provided with lower water inlet 11, the outer side wall upper end of cooling zone, bottom 6 is provided with bottom water outlet 12.
Be equipped with transverse wall 13 between cooling zone, described top 4 and cooling zone, middle part 5 and between cooling zone, middle part 5 and cooling zone, bottom 6.
Described crystallizer inwall 1 is made by red copper.
Described crystallizer overcoat 3 and transverse wall 13 are all made by carbon steel sheet.
The ratio that the height of cooling zone, described top 4, cooling zone, middle part 5 and cooling zone, bottom 6 accounts for the crystallizer total height is respectively: 30%, 30% and 40%.
Width between described crystallizer inwall 1 and crystallizer overcoat 3 is 40 millimeters-60 millimeters.
The chamber that crystallizer inwall 1 surrounds is crystallisation chamber 2, the arranged outside of crystallizer inwall 1 has crystallizer overcoat 3, crystallizer inwall 1 is made by red copper, and crystallizer overcoat 3 and transverse wall 13 are all made by carbon steel sheet, and the width between crystallizer inwall 1 and crystallizer overcoat 3 is 40 millimeters-60 millimeters.Be respectively arranged with separate cooling zone, top 4, cooling zone, middle part 5 and cooling zone, bottom 6 in cavity between crystallizer inwall 1, crystallizer overcoat 3 from top to bottom.Be equipped with transverse wall 13 between cooling zone, top 4 and cooling zone, middle part 5 and between cooling zone, middle part 5 and cooling zone, bottom 6, by transverse wall 13, two adjacent cooling zones are separated, form independently cooling zone, each cooling zone is provided with water-in and water outlet.The ratio that the height of cooling zone, top 4, cooling zone, middle part 5 and cooling zone, bottom 6 accounts for the crystallizer total height is respectively: 30%, 30% and 40%, for example: the internal diameter of water cooler is 680 millimeters, the crystallizer total height is 1800 millimeters, and the height of cooling zone, top 4 is 540 millimeters; The height of cooling zone 5, middle part is 540 millimeters, and the height of cooling zone, bottom 6 is 720 millimeters.
The outer side wall lower end of cooling zone, top 4 is provided with top water-in 7, and the outer side wall upper end of cooling zone, top 4 is provided with top water outlet 8, and extraneous water coolant can enter into cooling zone, top 4 by top water-in 7, then is flowed out by top water outlet 8.The outer side wall lower end of cooling zone 5, middle part is provided with middle part water-in 9, and the outer side wall upper end of cooling zone, middle part 5 is provided with middle part water outlet 10, and extraneous water coolant can enter into cooling zone 5, middle part by middle part water-in 9, then is flowed out by middle part water outlet 10.The outer side wall lower end of cooling zone, bottom 6 is provided with lower water inlet 11, the outer side wall upper end of cooling zone, bottom 6 is provided with bottom water outlet 12, same extraneous water coolant can enter into cooling zone, bottom 6 by lower water inlet 11, then is flowed out by lower water inlet 11.Top water-in 7, middle part water-in 9 and lower water inlet 11 are connected with extraneous water source by pipeline respectively, for accelerating flow velocity, can on top water outlet 8, middle part water outlet 10 and bottom water outlet 12, water pump be set, and the speed of control current that can be separate.
After subregion, cooling-water flowing speed is accelerated, accelerate speed of cooling, cooling performance is better, and realize the effective control to During Ingot Solidification in crystallizer and cooling intensity by each cooling zone flow velocity of control, discharge, water temperature, water temperature that in addition can be by improving crystallizer bottom cooled region also reduces flow, prevents high quality steel ESR ingot bottom cracking.For remelting nitrogen alloying Corrosion Resistant Stainless Steel for Plastic Mould steel ingot, the module homogeneous microstructure after forging, polishing performance reaches super minute surface rank.

Claims (6)

1. the refrigerating unit of an electroslag remelting crystalizer, comprise crystallizer inwall (1), the chamber that crystallizer inwall (1) surrounds is crystallisation chamber (2), the arranged outside of crystallizer inwall (1) has crystallizer overcoat (3), it is characterized in that: described crystallizer inwall (1), be respectively arranged with separate cooling zone, top (4) in cavity between crystallizer overcoat (3) from top to bottom, cooling zone (5), middle part and cooling zone, bottom (6), the outer side wall lower end of cooling zone, top (4) is provided with top water-in (7), the outer side wall upper end of cooling zone, top (4) is provided with top water outlet (8), the outer side wall lower end of cooling zone, middle part (5) is provided with middle part water-in (9), the outer side wall upper end of cooling zone, middle part (5) is provided with middle part water outlet (10), the outer side wall lower end of cooling zone, bottom (6) is provided with lower water inlet (11), the outer side wall upper end of cooling zone, bottom (6) is provided with bottom water outlet (12).
2. the refrigerating unit of a kind of electroslag remelting crystalizer according to claim 1, is characterized in that: be equipped with transverse wall (13) between cooling zone, described top (4) and cooling zone, middle part (5) and between cooling zone, middle part (5) and cooling zone, bottom (6).
3. the refrigerating unit of a kind of electroslag remelting crystalizer according to claim 1, it is characterized in that: described crystallizer inwall (1) is made by red copper.
4. the refrigerating unit of a kind of electroslag remelting crystalizer according to claim 1, it is characterized in that: described crystallizer overcoat (3) and transverse wall (13) are all made by carbon steel sheet.
5. the refrigerating unit of a kind of electroslag remelting crystalizer according to claim 1, it is characterized in that: the ratio that the height of cooling zone, described top (4), cooling zone, middle part (5) and cooling zone, bottom (6) accounts for the crystallizer total height is respectively: 30%, 30% and 40%.
6. the refrigerating unit of a kind of electroslag remelting crystalizer according to claim 1, it is characterized in that: the width between described crystallizer inwall (1) and crystallizer overcoat (3) is 40 millimeters-60 millimeters.
CN 201220644019 2012-11-29 2012-11-29 Cooling device of electroslag remelting crystallizer Active CN202945301U (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103627910A (en) * 2013-12-02 2014-03-12 河冶科技股份有限公司 Split crystallizer for isometric steel ingot electroslag remelting
CN105063366A (en) * 2015-09-06 2015-11-18 江油市重鑫特种金属材料有限公司 Sectional-cooling electroslag remelting wide slab crystallizer
CN111036866A (en) * 2019-12-18 2020-04-21 河北工业职业技术学院 Continuous casting slab crystallizer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103627910A (en) * 2013-12-02 2014-03-12 河冶科技股份有限公司 Split crystallizer for isometric steel ingot electroslag remelting
CN103627910B (en) * 2013-12-02 2016-08-17 河冶科技股份有限公司 Isometric steel ingot electroslag remelting Split crystallizer
CN105063366A (en) * 2015-09-06 2015-11-18 江油市重鑫特种金属材料有限公司 Sectional-cooling electroslag remelting wide slab crystallizer
CN111036866A (en) * 2019-12-18 2020-04-21 河北工业职业技术学院 Continuous casting slab crystallizer

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