CN102071302B - Inlet seal structure of vertical bright annealing furnace - Google Patents
Inlet seal structure of vertical bright annealing furnace Download PDFInfo
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- CN102071302B CN102071302B CN 200910246058 CN200910246058A CN102071302B CN 102071302 B CN102071302 B CN 102071302B CN 200910246058 CN200910246058 CN 200910246058 CN 200910246058 A CN200910246058 A CN 200910246058A CN 102071302 B CN102071302 B CN 102071302B
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- inlet seal
- band steel
- driving roll
- seal structure
- annealing furnace
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Abstract
The invention relates to an inlet seal structure of a vertical bright annealing furnace. A dual driving roll device is arranged at the inlet seal and comprises a first driving roll and a second driving roll which are tangentially arranged, and band steel penetrates through the tangency point of the two driving rolls through a line. The invention effectively prevents external oxygen from entering to oxidize the surface of the band steel, avoids scratches possibly generated on the surface of the band steel in case of using a static seal, and also avoids additional stress caused by friction between the band steel and the inlet seal.
Description
Technical field
The present invention relates to a kind of inlet seal structure of vertical bright annealing furnace.
Background technology
Vertical bright annealing furnace is the heat-treatment of annealing equipment that is applicable to high alloy Cr (ferrite Cr steel alloy and martensite Cr steel alloy) and CrNi (austenite CrNi steel alloy), is applicable to the annealing with steel.Usually the element Cr that contains in the steel alloy, Mn, and trace additives Ti, Si, Al etc. have higher oxygen affinity, thereby easily form oxide compound failure surface smooth finish, and the annealing device of prior art is because the problem of inlet seal sealing effectiveness, can't effectively stop extraneous oxygen to enter in the annealing furnace, cause belt steel surface to cause oxidation.
Alloy band steel in annealing, except avoiding oxidation, in order to obtain the level and smooth surface of light, also require the band steel by the time avoid physical abuse.For this reason, the band steel will accurately guide in the whole service process, first centering enter entrance, turn to the cooling channel centrally, in the backhaul passage, derive at last.
In the vertical bright annealing furnace of prior art, be with steel between entrance and guide roller, and the generation that between guide roller and outlet, often has friction and cause additional stress and print.
Summary of the invention
The object of the present invention is to provide a kind of inlet seal structure of vertical bright annealing furnace.
In order to reach above purpose, the scheme that the present invention adopts is:
A kind of inlet seal structure of vertical bright annealing furnace, described inlet seal place is provided with two drive roller arrangement, described pair of drive roller arrangement comprises the first driving roll and the second driving roll, described the first driving roll and the mutually circumscribed setting of the second driving roll, the band steel passes from both point of contacts by line.
Can be preferably in technique scheme, be provided with the balance roller device between described inlet seal and two drive roller arrangement, it comprises the balance roller that can swing, the accurate cylinder, the position transducer that are connected with described balance roller, described position transducer is arranged on the described accurate cylinder, described band steel arranges along described balance roller excircle by line, described accurate cylinder according to described position transducer induction band steel by line pass through control described balance roller and be rocked to suitable position in the position.
In addition, also can be preferably in technique scheme, be provided with a pair of fast sealing turnover panel between described inlet seal and balance roller device, described fast sealing turnover panel one end is fixedly installed, the mobilizable setting of one end, the movable end of this fast sealing turnover panel is oppositely arranged, and is in the adjustment state of continuous switching.
The present invention compared with prior art has following advantage: the present invention has effectively stoped extraneous oxygen to enter and has caused the oxidation of belt steel surface; Issuable printing when also avoiding simultaneously belt steel surface to occur using static sealing also avoided the additional stress that causes owing to the friction between steel and the inlet seal simultaneously.
Description of drawings
Accompanying drawing 1 is inlet seal structural representation of the present invention;
Wherein: 1, the 1, first driving roll; 2, the second driving roll; 3, the band steel passes through line; 4, balance roller; 5, accurate cylinder; 6, position transducer; 7, fast sealing turnover panel; 8, nitrogen nozzle; 9, inlet seal; 10, body of heater; 11, retort furnace; 12, sealing oil; 13, oil level.
Embodiment
Describe below with reference to accompanying drawings concrete structure of the present invention in detail:
Vertical bright annealing furnace adopts hydrogen as protective atmosphere; in annealing process; atmosphere whole process is controlled; it comprises inlet seal 9, the body of heater 10 that is connected with inlet seal 9, the cooling channel, the roller apron that are connected with body of heater 10 and the backhaul passage that is connected with exit seal, and consists of successively path.The position of exit seal and inlet seal 9 are contour.
Shown in accompanying drawing 1: inlet seal 9 places are provided with two drive roller arrangement, and two drive roller arrangement comprise the first driving roll 1 and the second driving roll 2, the first driving rolls 1 and the 2 mutually circumscribed settings of the second driving roll, and the band steel passes from both point of contacts by line 3.
Be provided with the balance roller device between inlet seal 9 and two drive roller arrangement, it comprises the balance roller 4 that can swing, the accurate cylinder 5 that is connected with balance roller 4, position transducer 6, position transducer 6 is arranged on the accurate cylinder 5, the band steel passes through line 3 along balance roller 4 excircle settings, accurate cylinder 6 is according to the pass through position of position transducer 6 induction band steel by line 3, and control balance roller 4 is rocked to suitable position.
Be provided with a pair of fast sealing turnover panel 7 between inlet seal 9 and balance roller 4 devices, these a pair of fast sealing turnover panel 7 movable ends are oppositely arranged, and are in the adjustment state of continuous switching.
Below specifically set forth the working method of the present embodiment:
Pass through from the point of contact of the first driving roll 1 and the second driving roll 2 along passing through line 3 with steel with steel, arrive balance roller 4.In balance roller 4 front portions, be provided with two nitrogen nozzles 8, what nitrogen nozzle 8 was relative sprays nitrogen on band steel upper and lower surface, make it to form a partial high pressure, has also played the effect in the oxygen impouring stove in the environment that stoped.When the band steel passes through balance roller 4, position transducer 6 can be responded to its optimum position, accurate cylinder 5 control balance rollers 4 are swung up and down, and and the adjusting in a pair of fast sealing turnover panel 7 gaps, make the band steel be in the optimum position and enter inlet seal 9, thereby issuable printing when avoiding belt steel surface occur to use static sealing also avoided the additional stress that causes owing to the friction between steel and the inlet seal simultaneously, and effectively stoped extraneous oxygen to enter and cause the oxidation of belt steel surface.
Simultaneously also be provided with sealing oil 12 at inlet seal 9 places, and be provided with oil level 13 and control.Enter through inlet seal 9 in the body of heater 10 with retort furnace 11, in the perhydro protective atmosphere, contactlessly vertically upward until the roller apron at top is then contactless vertically downward by the exit seal of backhaul passage to the end again from the bottom with steel.
Owing to having adopted reliably, being with efficiently steel entrance and exit Seal Design, although require lower dew point, the consumption of protective atmosphere can remain on very low level (the approximately lower-most point of 20m3/t).Same owing to having adopted above-mentioned effective measure, when annealing temperature was 1100 ℃, the specific energy consumption of heating with steel also remained on a lower level (being 320kWh/t during electrically heated, 420kWh/t during heated by natural gas).
Through the alloy band steel after the vertical bright annealing furnace thermal treatment, have the rolled surface of level and smooth light, so just reduce or cleaning and polishing process when having saved subsequent disposal.In addition, compare with the oxidizing annealing material, can improve erosion resistance, because clean annealing can not cause bill of material emaciated face chromium.And after the thermal treatment under the protective atmosphere, the metallic surface need not to do pickling again, provides cost savings.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics; its purpose is to allow the personage that is familiar with technique can understand content of the present invention and is implemented; can not limit protection scope of the present invention with this; all equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (2)
1. the inlet seal structure of a vertical bright annealing furnace, described inlet seal structure comprises inlet seal parts, described inlet seal structure is connected with vertical bright annealing furnace by described inlet seal parts, it is characterized in that: described inlet seal structure is provided with two drive roller arrangement, described pair of drive roller arrangement comprises the first driving roll and the second driving roll, described the first driving roll and the mutually circumscribed setting of the second driving roll, the band steel passes from both point of contacts by line, be provided with the balance roller device between described inlet seal parts and two drive roller arrangement, it comprises the balance roller that can swing, the accurate cylinder that is connected with described balance roller, position transducer, described position transducer is arranged on the described accurate cylinder, described band steel arranges along described balance roller excircle by line, described accurate cylinder according to described position transducer induction band steel by line pass through control described balance roller and be rocked to suitable position in the position.
2. the inlet seal structure of vertical bright annealing furnace according to claim 1, it is characterized in that: be provided with a pair of fast sealing turnover panel between described inlet seal parts and balance roller device, described fast sealing turnover panel one end is fixedly installed, the mobilizable setting of one end, the movable end of this fast sealing turnover panel is oppositely arranged, and is in the adjustment state of continuous switching.
Priority Applications (1)
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CN 200910246058 CN102071302B (en) | 2009-11-19 | 2009-11-19 | Inlet seal structure of vertical bright annealing furnace |
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CN 200910246058 CN102071302B (en) | 2009-11-19 | 2009-11-19 | Inlet seal structure of vertical bright annealing furnace |
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CN102071302A CN102071302A (en) | 2011-05-25 |
CN102071302B true CN102071302B (en) | 2013-04-10 |
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Families Citing this family (2)
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CN109338073A (en) * | 2018-12-07 | 2019-02-15 | 广东世创金属科技股份有限公司 | A kind of roller fire door sealing structure |
CN109517948B (en) * | 2018-12-20 | 2020-07-14 | 宁波宝新不锈钢有限公司 | Vertical bright annealing stove belted steel location dancer roll equipment |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1252518A (en) * | 1998-10-23 | 2000-05-10 | 川崎制铁株式会社 | Sealing device for continuous heat treatment furnace and sealing method |
CN101525684A (en) * | 2009-03-09 | 2009-09-09 | 重庆赛迪工业炉有限公司 | Inlet sealing device of annealing furnace with stainless steel mirror face |
CN201560215U (en) * | 2009-11-19 | 2010-08-25 | 艾伯纳工业炉(太仓)有限公司 | Inlet sealing structure of vertical bright annealing furnace |
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- 2009-11-19 CN CN 200910246058 patent/CN102071302B/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1252518A (en) * | 1998-10-23 | 2000-05-10 | 川崎制铁株式会社 | Sealing device for continuous heat treatment furnace and sealing method |
CN101525684A (en) * | 2009-03-09 | 2009-09-09 | 重庆赛迪工业炉有限公司 | Inlet sealing device of annealing furnace with stainless steel mirror face |
CN201560215U (en) * | 2009-11-19 | 2010-08-25 | 艾伯纳工业炉(太仓)有限公司 | Inlet sealing structure of vertical bright annealing furnace |
Non-Patent Citations (1)
Title |
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JP特开平9-268326A 1997.10.14 |
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