CN2915880Y - Energy-saving type continuous annealing oven of strip steel continuous hot galvanizing assembly line - Google Patents
Energy-saving type continuous annealing oven of strip steel continuous hot galvanizing assembly line Download PDFInfo
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- CN2915880Y CN2915880Y CN 200620085094 CN200620085094U CN2915880Y CN 2915880 Y CN2915880 Y CN 2915880Y CN 200620085094 CN200620085094 CN 200620085094 CN 200620085094 U CN200620085094 U CN 200620085094U CN 2915880 Y CN2915880 Y CN 2915880Y
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- deflector roll
- band steel
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Abstract
The utility model discloses an energy-saving type continuous annealing oven of strip steel continuous hot galvanizing assembly line, including a furnace body, a heating cavity and a cooling cavity are positioned in the furnace body, the heating cavity is communicated with the cooling cavity through the furnace throat, in the cooling cavity, a first steel moving component is arranged to drive a guidance steel vertical surface, which comprises an upper small turning roll and a lower large turning roll; a second steel moving component is arranged to drive the guidance steel vertical surface, which comprises an upper large turning roll and a lower small turning roll; the band steel of the first steel moving component and the band steel of the second steel moving component move towards each other in short distance. The low temperature band steel and the high temperature band steel, which temperature needs to be reduced, move towards each other in short distance, the heat exchange between the low temperature band steel and the high temperature band steel makes the temperature of the low temperature band steel at the entrance increase, the temperature increases approximately 300DEG C., and the temperature of the high temperature band steel decreases, the temperature decreases approximately 300-350DEG C., thus the objective of energy conservation of 30-40% for continuous annealing is achieved.
Description
Technical field
The utility model belongs to band steel processing technique field, particularly relates to a kind of energy-saving continuous annealing furnace with the steel Continuous Hot Dip Galvanizing Line.
Background technology
The band steel also is steel band; be actually steel sheet long and narrow and the rolling supply; why the band steel carries out pot galvanize, is because the chemical property of zinc is more active, in the air at normal temperatures; can with airborne water, carbonic acid gas and oxygen generation chemical reaction; generate the thin and fine and close zinc subcarbonate film of one deck, this layer zinc oxide has just stoped the further oxidation of inner zinc, around this principle; people protect iron not corroded with zinc, prolong the band steel purpose in work-ing life thereby reached.Galvanizing is a kind of cost-effective surface of steel plate protection against corrosion technology, according to the weather exposure test result in the period of the zinc-plated association 10 of Japan, the hot galvanized layer of 86 micron thickness was respectively 13,50,104,30 years in the durability in heavy industry, seashore, countryside and area, city.Just because of hot-dip galvanized steel strip have antiacid, antirust, corrosion protection, characteristics such as working life is long, material is light, outward appearance is beautiful simultaneously, glossy, thereby gain great popularity, be widely used in numerous areas such as household electrical appliances, automobile, office machine, steel work furniture, electronics, building.
The band steel continuous hot galvanizing production of prior art be with the band steel through shear end to end, after welding and the matting degreasing, enter continuous annealing furnace and carry out the recrystallization annealing processing, and plate face zone of oxidation is reduced into active pure iron layer, enter the zinc pot then in confined conditions and carry out pot galvanize, behind the strip steel Zn-plating, improve plate shape through polishing machine, stretching straightener, and handle, enter reeling machine at last through chromic acid passivation or oil surface.In fact above-mentioned band steel continuous hot galvanizing production process has comprised pretreatment procedure, anneal operation, zinc-plated operation and postprocessing working procedures.Pretreatment procedure mainly is impurity such as the grease of removing substrate surface, dust, scrap metal, makes the substrate surface cleaning.Annealing then is the band steel to be heated to undergo phase transition or the temperature of partial phase change, through the slow refrigerative heat treating method in insulation back, the annealed purpose is in order to eliminate tissue defects, improve tissue and make homogenization of composition and crystal grain thinning, improve the mechanical property of steel, reduce unrelieved stress, for subsequent handling is got ready, thereby in band steel continuous hot galvanizing production process, the continuous annealing furnace apparatus is very important.The continuous annealing furnace of prior art, include heating zone and cooling section, after the band steel enters continuous annealing furnace, must be warming up to 780～850 ℃, after cool to 400～500 ℃ again, and keep certain timeliness, to reach the condition of recrystallize, make the annealing of band steel, because all adopting, existing continuous annealing furnace force the refrigerative mode to realize and to reduce to 400～500 ℃ with the temperature of steel by 780～850 ℃, thereby, should increase the energy consumption of forced cooling equipment, wasted the thermal losses of cooling band steel again.
The utility model content
The purpose of this utility model is to overcome the deficiency of prior art, a kind of energy-saving continuous annealing furnace with the steel Continuous Hot Dip Galvanizing Line is provided, by will enter the mouth low temperate zone steel directly with the thermal zone steel that needs cooling move toward one another closely, utilize the heat exchange between low temperate zone steel and the thermal zone steel, the temperature of the low temperate zone of inlet steel is improved, temperature improves about 300 ℃, the temperature of thermal zone steel then is minimized, lower the temperature about 300～350 ℃, thereby reach the purpose of continuous annealing furnace energy-conservation 30～40%.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of energy-saving continuous annealing furnace with the steel Continuous Hot Dip Galvanizing Line, it comprises a body of heater, body of heater is connected by furnace throat between heating chamber and the cooling chamber along laterally being divided into heating chamber and cooling chamber;
In the heating chamber, be respectively equipped with several furnace wall upper and lower and be used for the upper and lower deflector roll that steering tape steel facade moves, last deflector roll are dislocation arrangement with following deflector roll; Between the furnace wall, front and back of heating chamber, be equipped with some can to the band steel walking surface realize thermal-radiating heating tube;
At the furnace throat place, enter first guide roller of heating chamber and second guide roller that the steering tape steel shifts out heating chamber but be respectively equipped with the steering tape steel;
In the cooling chamber, be respectively equipped with several large and small deflector roll on the top of furnace wall, little deflector roll are located at the below of big deflector roll on it; Be respectively equipped with several large and small deflector roll in the bottom of furnace wall, little deflector roll are located at down the top of big deflector roll under it; Form the first conveying belt steel moving member that steering tape steel facade moves by last little deflector roll and following big deflector roll; Form the second conveying belt steel moving member that steering tape steel facade moves by last big deflector roll and following little deflector roll; Closely move in opposite directions between the band steel of the band steel of the first conveying belt steel moving member and the second conveying belt steel moving member; On the body of heater of cooling chamber, be provided with entrance and exit, its ingress is provided with can guide the inlet guide roller for the treatment of that annealed strip enters in the stove and moving along the first conveying belt steel moving member, and its exit is provided with can derive the outer export orientation roller of stove with the annealed strip of the second conveying belt steel moving member.
Described body of heater also is coated with thermal insulation layer outward.The effect of thermal insulation layer is to stop body of heater and extraneous heat exchange, and the temperature in the stove can too fastly not reduced.
Described cooling chamber near the outlet the furnace wall, front and back between also be equipped with some can to the band steel walking surface realize thermal-radiating heating tube.Because band steel temperature before entering the zinc pot need be controlled under the certain temperature condition, thereby, for prevent thermal zone steel with the heat exchange of low temperate zone steel in, because of temperature fall too much do not reach temperature requirement before the zinc pot time, can pass through the heating of these heating tubes, and make thermal zone steel keep certain temperature.
The energy-saving continuous annealing furnace of band steel Continuous Hot Dip Galvanizing Line of the present utility model goes for band steel continuous hot galvanizing is also gone for being with steel face continuous hot aluminium-plated, can also be applicable to band steel continuously dip coat zinc-aluminium.
The energy-saving continuous annealing furnace of band steel Continuous Hot Dip Galvanizing Line of the present utility model, its heating chamber is heating furnace, by the heating of heating tube, the temperature of band steel can be risen to 780～850 ℃ in heating furnace.
The energy-saving continuous annealing furnace of band steel Continuous Hot Dip Galvanizing Line of the present utility model, its cooling chamber is cooling and heat-exchanging furnace, in this stove, realized on the one hand cooling from the thermal zone steel that heating furnace comes out, the temperature of the low temperate zone steel that inlet is entered by heat exchange improves on the other hand, and the thermal losses of thermal zone steel is utilized.Heat exchange in the stove, low temperate zone steel (promptly treating annealed strip) that is entered by inlet and the thermal zone steel that comes out from heating furnace closely move toward one another are realized, at the volley, thermal zone steel and low temperate zone steel carry out heat exchange, after the heat exchange, the temperature of strip steel at entry improves about 300 ℃, and thermal zone steel is then lowered the temperature about 300～350 ℃.After the thermal zone steel cooling, its temperature is 400～500 ℃, meets the temperature requirement that enters the zinc pot, thereby need not implement to force cooling to thermal zone steel again, has saved the investment of forced cooling device and the consumption of the energy.After treating that the annealed strip temperature improves, when entering heating furnace and need be elevated to 780～850 ℃, because treat that the annealed strip temperature has reached more than 300 ℃ this moment, therefore, by being heated to 780～850 ℃ more than 300 ℃, obviously than much smaller, like this by being heated to 780～850 ℃ of required energy consumptions under the normal temperature, reduce the energy consumption of heating furnace again, thereby played the effect of continuous annealing furnace energy-conservation 30～40%.
The energy-saving continuous annealing furnace of band steel Continuous Hot Dip Galvanizing Line of the present utility model in cooling chamber (i.e. cooling and heat-exchanging furnace), is formed the first conveying belt steel moving member that steering tape steel facade moves by last little deflector roll and following big deflector roll; Form the second conveying belt steel moving member that steering tape steel facade moves by last big deflector roll and following little deflector roll; The two band steel that two conveying belt steel moving members make turnover are move toward one another closely, thereby has realized heat exchange.
The energy-saving continuous annealing furnace of band steel Continuous Hot Dip Galvanizing Line of the present utility model, intravital heating chamber of stove and cooling chamber can be transversely arranged, also can vertical array.
The energy-saving continuous annealing furnace of band steel Continuous Hot Dip Galvanizing Line of the present utility model, deflector roll in heating chamber and the cooling chamber can be and distribute up and down and make the band steel be facade to move, and distribute about the deflector roll in heating chamber and the cooling chamber can be and make the band steel be the plane to move.Drop easily when moving and produce distortion, thereby preferred scheme is to make the band steel be facade to move owing to band steel plane.
The beneficial effects of the utility model are, owing to adopted body of heater be divided into heating chamber and cooling chamber, be connected by furnace throat between heating chamber and the cooling chamber, in the cooling chamber, form the second conveying belt steel moving member that steering tape steel facade moves by last little deflector roll and the first conveying belt steel moving member and last big deflector roll that down big deflector roll composition steering tape steel facade moves with down little deflector roll, closely move in opposite directions between the thermal zone steel of the low temperate zone steel of the first conveying belt steel moving member and the second conveying belt steel moving member, utilize the heat exchange between low temperate zone steel and the thermal zone steel, the temperature of the low temperate zone of inlet steel is improved, temperature improves about 300 ℃, the temperature of thermal zone steel then is minimized, lower the temperature about 300～350 ℃, thereby reach the purpose of continuous annealing furnace energy-conservation 30～40%.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in further detail; But a kind of energy-saving continuous annealing furnace with the steel Continuous Hot Dip Galvanizing Line of the present utility model is not limited to embodiment.
Fig. 1 is an organigram of the present utility model.
Embodiment
Shown in accompanying drawing, a kind of energy-saving continuous annealing furnace of the present utility model with the steel Continuous Hot Dip Galvanizing Line, it comprises a body of heater 1, body of heater is connected by furnace throat 13 between heating chamber 11 and the cooling chamber 12 along laterally being divided into heating chamber 11 and cooling chamber 12;
In the heating chamber 11, the top of furnace wall be provided with four be used for that steering tape steel 10 facades move on deflector roll 211,212,213,214, be provided with four equally in the bottom of furnace wall and be used for the following deflector roll 221,222,223,224 that steering tape steel 10 facades move, last deflector roll 211,212,213,214 and following deflector roll 221,222,223,224 are dislocation arrangement, certainly, upper and lower as required deflector roll can or be less than four more than four; Between the furnace wall, front and back of heating chamber 11, be equipped with some can to the band steel 10 walking surface realize thermal-radiating heating tube 23;
At furnace throat 13 places, enter first guide roller 41 of heating chamber 11 and second guide roller 42 that the steering tape steel shifts out heating chamber 11 but be respectively equipped with steering tape steel 10;
In the cooling chamber 12, be respectively equipped with 311,312,313 and three little deflector roll 321,322,323 of three big deflector roll on the top of furnace wall, little deflector roll 321,322,323 are located at big deflector roll 311,312,313 corresponding belows on it; Be respectively equipped with 331,332 and two little deflector roll 341,342 of two big deflector roll in the bottom of furnace wall, little deflector roll 341,342 are located at down big deflector roll 331,332 corresponding tops under it; Form the first conveying belt steel moving member that steering tape steel facade moves by last little deflector roll 321,322,323 and following big deflector roll 331,332; Form the second conveying belt steel moving member that steering tape steel facade moves by last big deflector roll 311,312,313 and following little deflector roll 341,342; Closely move in opposite directions between the band steel 102 of the band steel 101 of the first conveying belt steel moving member and the second conveying belt steel moving member, wherein, band steel 101 is low temperate zone steel, and band steel 102 is thermal zone steel; On the body of heater of cooling chamber, be provided with entrance and exit, its ingress is provided with can guide the inlet guide roller 51 for the treatment of that annealed strip enters in the stove and moving along the first conveying belt steel moving member, and its exit is provided with can derive the outer export orientation roller 52 of stove with the annealed strip of the second conveying belt steel moving member.
Wherein, the body of heater 1 outer thermal insulation layer that also is coated with, the effect of thermal insulation layer is to stop body of heater and extraneous heat exchange, and the temperature in the stove can too fastly not reduced; Cooling chamber 12 near the outlet the furnace wall, front and back between also be equipped with some can to the band steel walking surface realize thermal-radiating heating tube 53, because band steel 10 temperature before entering the zinc pot need be controlled under the certain temperature condition, thereby, for prevent thermal zone steel 102 with the heat exchange of low temperate zone steel 101 in, because of temperature fall too much do not reach temperature requirement before the zinc pot time, can pass through the heating of these heating tubes 53, and make thermal zone steel 102 keep certain temperature.
The energy-saving continuous annealing furnace of band steel Continuous Hot Dip Galvanizing Line of the present utility model goes for band steel continuous hot galvanizing is also gone for being with steel face continuous hot aluminium-plated, can also be applicable to band steel continuously dip coat zinc-aluminium.
The energy-saving continuous annealing furnace of band steel Continuous Hot Dip Galvanizing Line of the present utility model, its heating chamber 11 is heating furnace, by the heating of heating tube 23, the temperature of band steel 10 can be risen to 780～850 ℃ in heating furnace.
The energy-saving continuous annealing furnace of band steel Continuous Hot Dip Galvanizing Line of the present utility model, its cooling chamber 12 is cooling and heat-exchanging furnace, in this stove, realized cooling on the one hand from the thermal zone steel 102 that heating furnace comes out, the temperature of the low temperate zone steel 101 that inlet is entered by heat exchange improves on the other hand, and the thermal losses of thermal zone steel 102 is utilized.Heat exchange in the stove, low temperate zone steel 101 (promptly treating annealed strip) that is entered by inlet and the thermal zone steel 102 that comes out from heating furnace closely move toward one another are realized, at the volley, thermal zone steel 102 carries out heat exchange with low temperate zone steel 101, after the heat exchange, the temperature of strip steel at entry 101 improves about 300 ℃, about 300～350 ℃ of 102 coolings of thermal zone steel.After thermal zone steel 102 coolings, its temperature is 400～500 ℃, meets the temperature requirement that enters the zinc pot, thereby need not implement to force cooling to thermal zone steel 102 again, has saved the investment of forced cooling device and the consumption of the energy.After treating that annealed strip 101 temperature improve, when entering heating furnace 11 and need be elevated to 780～850 ℃, because treat that annealed strip 101 temperature have reached more than 300 ℃ this moment, therefore, by being heated to 780～850 ℃ more than 300 ℃, obviously than much smaller, like this by being heated to 780～850 ℃ of required energy consumptions under the normal temperature, reduce the energy consumption of heating furnace again, thereby played the effect of continuous annealing furnace energy-conservation 30～40%.
The energy-saving continuous annealing furnace of band steel Continuous Hot Dip Galvanizing Line of the present utility model, heating chamber and cooling chamber in the body of heater 1 can be transversely arranged, also can vertical array.
The energy-saving continuous annealing furnace of band steel Continuous Hot Dip Galvanizing Line of the present utility model, deflector roll in heating chamber and the cooling chamber can be and distribute up and down and make the band steel be facade to move, and distribute about the deflector roll in heating chamber and the cooling chamber can be and make the band steel be the plane to move.Drop easily when moving and produce distortion, thereby preferred scheme is to make the band steel be facade to move owing to band steel plane.
In the working process, band steel 10 is entered in the stove by the guiding of inlet guide roller 51, and at this moment, what enter is cooling chamber 12, and what band steel 10 had just entered cooling chamber 12 is low temperate zone steel 101, is thermal zone steel 102 by what heating chamber 11 came out.In cooling chamber 12, band steel 10 as low temperate zone steel 101 successively by last little deflector roll 323, down big deflector roll 332, go up little deflector roll 322, big deflector roll 331, guiding and first guide roller 41 through furnace throat 13 places of going up little deflector roll 321 enter heating chamber 11 down; In heating chamber 11, band steel 10 successively by following deflector roll 221, go up deflector roll 211, down deflector roll 222, go up deflector roll 212, down deflector roll 223, go up deflector roll 213, down deflector roll 224, go up deflector roll 214 guidings and second guide roller 42 and withdraw from heating chamber 11 and return cooling chamber 12 through furnace throat 13 places; In cooling chamber 12, the band steel 10 that comes out as thermal zone steel 102 by last big deflector roll 311, down little deflector roll 341, go up big deflector roll 312, down little deflector roll 342, go up the guiding of big deflector roll 313 and shift out furnace chamber through the guiding of export orientation roller 52.Like this, in cooling chamber 12,, realized the heat exchange between thermal zone steel 102 and the low temperature steel band by the closely move toward one another of thermal zone steel 102 and low temperature steel band 101.
The foregoing description only is used for further specifying the energy-saving continuous annealing furnace of band steel Continuous Hot Dip Galvanizing Line of the present utility model; but the utility model is not limited to embodiment; every foundation technical spirit of the present utility model all falls in the protection domain of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (3)
1. energy-saving continuous annealing furnace with the steel Continuous Hot Dip Galvanizing Line, it is characterized in that: it comprises a body of heater, body of heater is connected by furnace throat between heating chamber and the cooling chamber along laterally being divided into heating chamber and cooling chamber;
In the heating chamber, be respectively equipped with several furnace wall upper and lower and be used for the upper and lower deflector roll that steering tape steel facade moves, last deflector roll are dislocation arrangement with following deflector roll; Between the furnace wall, front and back of heating chamber, be equipped with some can to the band steel walking surface realize thermal-radiating heating tube;
At the furnace throat place, enter first guide roller of heating chamber and second guide roller that the steering tape steel shifts out heating chamber but be respectively equipped with the steering tape steel;
In the cooling chamber, be respectively equipped with several large and small deflector roll on the top of furnace wall, little deflector roll are located at the below of big deflector roll on it; Be respectively equipped with several large and small deflector roll in the bottom of furnace wall, little deflector roll are located at down the top of big deflector roll under it; Form the first conveying belt steel moving member that steering tape steel facade moves by last little deflector roll and following big deflector roll; Form the second conveying belt steel moving member that steering tape steel facade moves by last big deflector roll and following little deflector roll; Closely move in opposite directions between the band steel of the band steel of the first conveying belt steel moving member and the second conveying belt steel moving member; On the body of heater of cooling chamber, be provided with entrance and exit, its ingress is provided with can guide the inlet guide roller for the treatment of that annealed strip enters in the stove and moving along the first conveying belt steel moving member, and its exit is provided with can derive the outer export orientation roller of stove with the annealed strip of the second conveying belt steel moving member.
2. a kind of energy-saving continuous annealing furnace with the steel Continuous Hot Dip Galvanizing Line according to claim 1, it is characterized in that: described body of heater also is coated with thermal insulation layer outward.
3. a kind of energy-saving continuous annealing furnace with the steel Continuous Hot Dip Galvanizing Line according to claim 1 is characterized in that: described cooling chamber near the outlet the furnace wall, front and back between also be equipped with some can to the band steel walking surface realize thermal-radiating heating tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620085094 CN2915880Y (en) | 2006-05-31 | 2006-05-31 | Energy-saving type continuous annealing oven of strip steel continuous hot galvanizing assembly line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620085094 CN2915880Y (en) | 2006-05-31 | 2006-05-31 | Energy-saving type continuous annealing oven of strip steel continuous hot galvanizing assembly line |
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| CN2915880Y true CN2915880Y (en) | 2007-06-27 |
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| CN 200620085094 Expired - Lifetime CN2915880Y (en) | 2006-05-31 | 2006-05-31 | Energy-saving type continuous annealing oven of strip steel continuous hot galvanizing assembly line |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435018B (en) * | 2007-11-15 | 2010-05-26 | 重庆赛迪工业炉有限公司 | Hot dip galvanizing annealing process and high temperature annealing furnace |
| CN101914736A (en) * | 2010-08-12 | 2010-12-15 | 浙江浩大工业炉有限公司 | Continuous annealing furnace |
| CN102010981A (en) * | 2010-07-27 | 2011-04-13 | 方明钢业(漳州)有限公司 | Continuous annealing furnace of high-efficiency energy-saving metal strip |
| CN102071303A (en) * | 2011-01-30 | 2011-05-25 | 中冶南方(武汉)威仕工业炉有限公司 | Strip threading method of strip steel in silicon steel continuous annealing drying furnace |
| WO2011157192A1 (en) * | 2010-06-13 | 2011-12-22 | 浙江伯耐钢带有限公司 | Steel strip heat-treating system with waste heat utilizing apparatus |
| WO2012075790A1 (en) * | 2010-12-08 | 2012-06-14 | 浙江伯耐钢带有限公司 | Waste heat recycling apparatus of double-layered steel strip heat treatment system |
-
2006
- 2006-05-31 CN CN 200620085094 patent/CN2915880Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435018B (en) * | 2007-11-15 | 2010-05-26 | 重庆赛迪工业炉有限公司 | Hot dip galvanizing annealing process and high temperature annealing furnace |
| WO2011157192A1 (en) * | 2010-06-13 | 2011-12-22 | 浙江伯耐钢带有限公司 | Steel strip heat-treating system with waste heat utilizing apparatus |
| CN102010981A (en) * | 2010-07-27 | 2011-04-13 | 方明钢业(漳州)有限公司 | Continuous annealing furnace of high-efficiency energy-saving metal strip |
| CN102010981B (en) * | 2010-07-27 | 2013-05-08 | 方明钢业(漳州)有限公司 | Continuous annealing furnace of high-efficiency energy-saving metal strip |
| CN101914736A (en) * | 2010-08-12 | 2010-12-15 | 浙江浩大工业炉有限公司 | Continuous annealing furnace |
| WO2012075790A1 (en) * | 2010-12-08 | 2012-06-14 | 浙江伯耐钢带有限公司 | Waste heat recycling apparatus of double-layered steel strip heat treatment system |
| CN102071303A (en) * | 2011-01-30 | 2011-05-25 | 中冶南方(武汉)威仕工业炉有限公司 | Strip threading method of strip steel in silicon steel continuous annealing drying furnace |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20090311 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |