CN202081147U - Strip steel water quench cooling device - Google Patents
Strip steel water quench cooling device Download PDFInfo
- Publication number
- CN202081147U CN202081147U CN2011201210812U CN201120121081U CN202081147U CN 202081147 U CN202081147 U CN 202081147U CN 2011201210812 U CN2011201210812 U CN 2011201210812U CN 201120121081 U CN201120121081 U CN 201120121081U CN 202081147 U CN202081147 U CN 202081147U
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- water
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- steel
- band steel
- furnace wall
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Abstract
The utility model discloses a strip steel water quench cooling device, which includes a sealing device, a water quench tank, an air-extracting apparatus and two symmetrical injection devices, wherein the sealing device is arranged in the furnace wall of a continuous annealing furnace, a strip steel traveling passage is arranged in the middle thereof, and the left and the right ends thereof are hermetically connected with the furnace wall; the water quench tank is arranged behind the sealing device in the traveling direction of the strip steel, cooling water is contained in the water quench tank, the lower end of the furnace wall is immersed in the cooling water, and the liquid level of the cooling water and the sealing device form a relatively-sealed space within the furnace wall; the air-extracting apparatus is communicated with the relatively-sealed space; both the two symmetrical injection devices are immersed in the cooling water of the water quench tank, are arranged on the two sides of the two surfaces of the strip steel respectively, and include multiple rows of injection nozzles sequentially arranged in the traveling direction of the steel strip respectively, the row of injection nozzles closest to the liquid level of the cooling water is arranged in an obliquely downward way, and an acute angle included angle is formed between the injection direction of the injection nozzles and the traveling direction of the strip steel.
Description
Technical field
The utility model relates to a kind of band steel refrigerating unit, relates in particular to a kind of band molten steel quenching radiator cooler.
Background technology
Along with the development of industrial technology and the raising of modern metallurgic product performance, the market requirement of cold rolling high-strength steel and super-high strength steel is increasing.At present, in order to reduce the content of high tensile steel plate alloying element, reduce the production cost of high-strength steel, improving the welding property of steel plate and manufacturability simultaneously can (comprise operation productions such as being easy to continuous casting, hot rolling, pickling, side cut, cold rolling, annealing), need carry out quick cooling process usually behind steel plate annealing.Method for rapid cooling commonly used at present normally adopts the jet cooling of high hydrogen, aerosol cooling or shrend cooling to cool off fast after the steel plate slow cooling.
The shrend cooling is that present cooling power is the highest, a kind of method of cooling of most economical practicality, the most suitable phase transformation strengthening steel plate that is applied to the production superstrength.Publication number is US4330112, open day is May 18 nineteen eighty-two, name a kind of shrend refrigerating unit that has been called " the band steel refrigerating unit of continuous annealing production line " (Apparatus for coolinga steel strip in a continuous annealing line) U.S. Patent Publication, go as shown in Figure 1: earlier extract water coolants in the hardening groove 11 out and deliver to jet apparatus 13 through pipeline and be ejected into belt steel surface and cool off, will be with steel immersion hardening groove 11 to cool off again with water pump 12.This refrigerating unit is suitable for the quick cooling of low temperate zone steel, the band steel about 400 ℃ can be cooled to below 60～95 ℃.
In addition, publication number is EP1300478A1, open day is on April 9th, 2003, the European patent that name is called " accelerated cooling device of continuous annealing unit and process " (Process and device for acceleratedcooling in a continuous annealing line) discloses a kind of hot water to be quenched+secondary method of cooling that cold water is quenched, it adopts boiled water cooling zone steel earlier, adopts cold water cooling zone steel again.Because boiled water temperature height (temperature is more than 100 ℃ and 100 ℃), except speed of cooling can't reach the speed of cooling that cold water quenches, the surface oxidation of band steel was also even more serious, and pickling subsequently is difficulty more also, causes production cost to increase.
The contriver thinks by analysis, above-mentioned two kinds of granulating units have all adopted the hardening groove that the band steel is immersed cooling, it is big to immerse the steam bubble amount that cooling produces, can influence rate of cooling and inhomogeneous cooling, in this external shrend process, cryogenic water coolant contact pyritous band steel can be at a large amount of vapor bubbles and the steam film of belt steel surface generation, these bubbles and steam film also can influence the effect that the band molten steel is quenched, and finally cause the plate shape of band steel relatively poor.In addition, if on liquid level to belt steel surface shower cooling water cooling band steel, current will be involved in a large amount of gases in course of injection, thereby can produce a large amount of aerosols and water vapor, aerosol and water vapor can influence band steel refrigerative homogeneity, and be easy to enter into the slow cooling section that stove moves back in the company that links to each other with watch-quench tank, even further have influence on soaking zone, make the annealing device corrosion serious.
Summary of the invention
Goal of the invention of the present utility model provides a kind of band molten steel quenching radiator cooler, it is intended to solve the bad problem of belt plate shape that existing band molten steel quenching radiator cooler inhomogeneous cooling causes, adopt band molten steel quenching radiator cooler described in the utility model can realize quick cooling with steel, guarantee the average cooling rate of band steel, can also guarantee to be with steel to cool off in the shrend process evenly, a large amount of aerosols that shrend simultaneously produces can not cause corrosion to miscellaneous equipment yet.
The utility model provides a kind of band molten steel quenching radiator cooler according to the foregoing invention purpose, and after it was arranged at the continuous strip annealing furnace slow cooling section along band steel direct of travel, described band molten steel quenching radiator cooler comprised:
One tightness system, it is located in the furnace wall of continuous strip annealing furnace, and the centre of described tightness system has a band steel walking passage, and its left and right both ends and described furnace wall are tightly connected;
One watch-quench tank, it is arranged at described tightness system rear along band steel direction of travel, be loaded with water coolant in the described watch-quench tank, the bottom of described furnace wall is immersed in the water coolant, and the liquid level of described water coolant forms a relative seal cavity with described tightness system in the furnace wall;
One air extractor, it is communicated with described relative seal cavity;
Two jet apparatus that are provided with relatively, it all is immersed in the water coolant of described watch-quench tank, described two jet apparatus are arranged at band steel two surperficial both sides respectively, described each jet apparatus includes the plurality of rows nozzle that sets gradually along band steel direct of travel, wherein be provided with down apart from the nearest row's nozzle of water coolant liquid level is oblique, the injection direction of nozzle is an acute angle angle with band steel direct of travel.
Band molten steel quenching radiator cooler described in the utility model, in the furnace wall, form the setting of a relative seal cavity by tightness system and water coolant liquid level, make a large amount of water vapour and aerosol that the shrend process is produced can't escape to other device spaces, prevented the corrosion of other equipment effectively.Why only being provided with relative seal cavity rather than absolute seal space in the technical program, is because be with steel can pass through tightness system smoothly in order to guarantee, a band steel walking passage need be set in the middle of tightness system, therefore can't realize absolute sealing.When the band steel had produced a large amount of water vapour in the shrend process after, the described band steel of the technical program refrigerating unit adopted air extractor that aerosol in the relative seal cavity and water vapour are extracted out.In addition, band steel refrigerating unit described in the utility model is by being immersed in jet apparatus in the watch-quench tank, to the shrend type of cooling of being with steel to spray cold+boshing, this setup can guarantee to be with steel fast, strengthen cooling, simultaneously vapor bubbles that belt steel surface can also be produced simultaneously at reinforcing band steel refrigerative and the vapor film belt steel surface that blows off fast, equably improves shrend effect and cooling uniformity.In order to prevent in the shrend process of cooling, the water coolant liquid fluctuating causes adverse influence to band steel cooling uniformity, row's nozzle that will be nearest apart from the water coolant liquid level in the technical program is oblique to be provided with down, can reduce to spray+immerse liquid fluctuating that cooling causes and spray like this to the detrimentally affect of belt plate shape, further improve band steel refrigerative homogeneity.
In order further to improve the cooling performance of above-mentioned band molten steel quenching radiator cooler, guarantee that the band steel has uniform cooling performance on its width, preferably, described each jet apparatus includes some groups of nozzles that are provided with along the strip width direction, and the described nozzle of respectively organizing is connected with a water regulating valve respectively.Like this, in the shrend process of cooling, just can be according to the practical situation of band steel, adjust cooling water inflow on the strip width direction as the plate shape, temperature etc. of band steel.
Alternatively, described band molten steel quenching radiator cooler also comprises several water regulating valves, described each jet apparatus includes some groups of nozzles that are provided with along the strip width direction, two groups of nozzles that wherein are relatively arranged on band steel two surperficial both sides jointly with described several water regulating valves in one be connected.
Preferably, the nozzle homocline of respectively arranging of described each jet apparatus is provided with downwards, and the injection direction of nozzle is an acute angle angle with the direct of travel of band steel.
Preferably, described band molten steel quenching radiator cooler also comprises a filling pipe and a water shoot, and it is connected with described watch-quench tank respectively, and described filling pipe is provided with a water compensating valve, and described water shoot is provided with a water discharge valve.
Band molten steel quenching radiator cooler described in the utility model, in the satisfactory while of average cooling rate that guarantees the band steel, can also guarantee to be with steel in the shrend process, to realize evenly cooling, thereby make the band steel have good plate shape, a large amount of water vapour and aerosol that this tyre steel produces in process of cooling can also in time be discharged, and can not cause disadvantageous effect to other equipment.
Description of drawings
Fig. 1 is that publication number is the structural representation of the disclosed refrigerating unit of United States Patent (USP) of US4330112.
Fig. 2 is the structural representation of band molten steel quenching radiator cooler described in the utility model.
Fig. 3 is that tuyere arrangement structure in one embodiment is provided with synoptic diagram in the band molten steel quenching radiator cooler described in the utility model.
Embodiment
Below with reference to Figure of description and embodiment band molten steel quenching radiator cooler described in the utility model is described in further detail.
As shown in Figure 2, band molten steel quenching radiator cooler in the present embodiment comprises tightness system 22, and it is located in the furnace wall 23 of continuous strip annealing furnace, and the centre of sealing device 22 has a band steel walking passage, its left and right both ends and furnace wall 23 are tightly connected, and band steel 21 passes from band steel walking passage; Watch-quench tank 27 is arranged at tightness system 22 rears along band steel direction of travel, be loaded with water coolant 28 in the watch-quench tank, the bottom of furnace wall 23 is immersed in the water coolant 28, make the liquid level of water coolant 28 in furnace wall 23, form a relative seal cavity with tightness system 22, air extractor 24 is communicated with relative seal cavity, is used for band steel 21 is extracted out at a large amount of water vapour that the shrend process of cooling produces.Two jet apparatus that are oppositely arranged all are immersed in the water coolant 28, and be arranged at respectively the band steel 21 two surperficial both sides, as can be seen from Figure 2 each jet apparatus includes the five row's nozzles that set gradually along band steel direct of travel, wherein apart from nearest first row's nozzle, the 25 oblique settings down of the liquid level of water coolant 28, its injection direction is an acute angle angle with band steel direct of travel, four remaining row's nozzles 26 all be with vertical setting of steel direct of travel.The adjusting of the watch-quench tank 27 internal cooling water yields and temperature of cooling water for convenience, watch-quench tank 27 also is connected with water shoot 33 with filling pipe 31 respectively, and filling pipe 31 is provided with water compensating valve 30, and water shoot 33 is provided with water discharge valve 29.
As shown in Figure 3, left and right directions is the width of band steel 21 among the figure, jet apparatus in the present embodiment is provided with five groups of nozzles along the strip width direction as can be seen from Figure 3, two groups of nozzles that are oppositely arranged on 21 liang of surperficial both sides of band steel are a pair of, each is to being connected with a water regulating valve 34, realize the cooling water inflow adjusting on the strip width direction, thereby improve band steel 21 shrend refrigerative effects.
Be noted that above enumerate only for specific embodiment of the utility model, obviously the utility model is not limited to above embodiment, and many similar variations are arranged thereupon.If those skilled in the art all should belong to protection domain of the present utility model from all distortion that the disclosed content of the utility model directly derives or associates.
Claims (5)
1. be with molten steel quenching radiator cooler for one kind, it is characterized in that described band molten steel quenching radiator cooler comprises after being arranged at the continuous strip annealing furnace slow cooling section along band steel direct of travel:
One tightness system, it is located in the furnace wall of continuous strip annealing furnace, and the centre of described tightness system has a band steel walking passage, and its left and right both ends and described furnace wall are tightly connected;
One watch-quench tank, it is arranged at described tightness system rear along band steel direction of travel, be loaded with water coolant in the described watch-quench tank, the bottom of described furnace wall is immersed in the water coolant, and the liquid level of described water coolant forms a relative seal cavity with described tightness system in the furnace wall;
One air extractor, it is communicated with described relative seal cavity;
Two jet apparatus that are provided with relatively, it all is immersed in the water coolant of described watch-quench tank, described two jet apparatus are arranged at band steel two surperficial both sides respectively, described each jet apparatus includes the plurality of rows nozzle that sets gradually along band steel direct of travel, wherein be provided with down apart from the nearest row's nozzle of water coolant liquid level is oblique, the injection direction of nozzle is an acute angle angle with band steel direct of travel.
2. band molten steel quenching radiator cooler as claimed in claim 1 is characterized in that, described each jet apparatus includes some groups of nozzles that are provided with along the strip width direction, and the described nozzle of respectively organizing is connected with a water regulating valve respectively.
3. band molten steel quenching radiator cooler as claimed in claim 1, it is characterized in that, also comprise several water regulating valves, described each jet apparatus includes some groups of nozzles that are provided with along the strip width direction, two groups of nozzles that wherein are relatively arranged on band steel two surperficial both sides jointly with described several water regulating valves in one be connected.
4. as any described band molten steel quenching radiator cooler among the claim 1-3, it is characterized in that the nozzle homocline of respectively arranging of described each jet apparatus is provided with downwards, the injection direction of nozzle is an acute angle angle with the direct of travel of band steel.
5. band molten steel quenching radiator cooler as claimed in claim 4 is characterized in that also comprise a filling pipe and a water shoot, it is connected with described watch-quench tank respectively, and described filling pipe is provided with a water compensating valve, and described water shoot is provided with a water discharge valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201210812U CN202081147U (en) | 2011-04-22 | 2011-04-22 | Strip steel water quench cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201210812U CN202081147U (en) | 2011-04-22 | 2011-04-22 | Strip steel water quench cooling device |
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| Publication Number | Publication Date |
|---|---|
| CN202081147U true CN202081147U (en) | 2011-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201210812U Expired - Fee Related CN202081147U (en) | 2011-04-22 | 2011-04-22 | Strip steel water quench cooling device |
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| CN (1) | CN202081147U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104968809A (en) * | 2013-02-01 | 2015-10-07 | 贝卡尔特公司 | Forced water cooling of thick steel wires |
| JP2022543432A (en) * | 2019-08-06 | 2022-10-12 | アルセロールミタル | Device for cooling steel strip |
-
2011
- 2011-04-22 CN CN2011201210812U patent/CN202081147U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104968809A (en) * | 2013-02-01 | 2015-10-07 | 贝卡尔特公司 | Forced water cooling of thick steel wires |
| JP2022543432A (en) * | 2019-08-06 | 2022-10-12 | アルセロールミタル | Device for cooling steel strip |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20111221 Termination date: 20200422 |