CN104250678B - Horizental annealer radiation cooling system slow cooling section device and control method - Google Patents
Horizental annealer radiation cooling system slow cooling section device and control method Download PDFInfo
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- CN104250678B CN104250678B CN201310257345.0A CN201310257345A CN104250678B CN 104250678 B CN104250678 B CN 104250678B CN 201310257345 A CN201310257345 A CN 201310257345A CN 104250678 B CN104250678 B CN 104250678B
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Abstract
A kind of annealing furnace radiation cooling system slow cooling section device and control method thereof, described slow cooling section device is set to 48 sections, each section is respectively provided with an air flow control valve (3) and temperature monitor, when temperature monitor detects in-furnace temperature, information regulates air flow rate adjustment valve by feedback controller (11)；Each section all radiates sleeve pipe (2) in the upper and lower arranged crosswise of strip steel, by the cold air radiation in radiation sleeve pipe, strip steel being carried out cooling down, the flow control valve (3) connecting each section is discharged by exhaust chimney (6) after air line (4) is connected to air exhauster (5).According to the present invention, the production technology of slow cooling section can be set by original target temperature, according to the actual temperature in burner hearth, gas flow in radiation cooled tube is automatically adjusted along with the demand of fire box temperature, its control method is fairly simple, workable, and daily being easy to is safeguarded.
Description
Technical field
The present invention relates to metallurgical heat-treatment of annealing field, especially, relating to the annealing of cold rolling tandem mill needs Slow cooling
The Horizental annealer radiation cooling system slow cooling section device and control method thereof of continuous annealing production line.
Background technology
In heat-treatment of annealing technique, the most all there is bringing-up section, soaking zone, slow cooling section, rapid cooling section and air cooling section
Etc. production technology；The hot drawing annealing unit of certain share silicon steel portion of iron and steel enterprise orientation silicon steel one phase have employed above-mentioned work too
Skill.Product is in implementing annealing process, and there is vital effect slow cooling section, and the plate shape of belt steel surface is affected by slow cooling speed
The biggest.The cooling means that the slow cooling section of certain iron and steel enterprise's orientation silicon steel one phase hot drawing annealing unit is used is bellows purgings
Cooling, as shown in Fig. 1 steel enterprise orientation one phase annealing furnace slow cooling schematic diagram.
As it is shown in figure 1, strip steel uses upper and lower bellows purging to cool down in annealing process in annealing furnace, use the method
Cool down, the control of production board shape and the control of annealing furnace furnace pressure all had certain negative effect:
1) cool wind box is arranged in the upper and lower surface of strip steel, the method using purging cooling, is unfavorable for that strip steel is when cooling
Uniformity, be the most also unfavorable for improving plate shape.
2) use the cooling means of purging direct to belt steel surface, be unfavorable for the most stable of annealing furnace furnace pressure, if right
The easy vibration of atmosphere if cooling air quantity dynamically regulates, between each section in stove, it is impossible to each section of gas in reaching annealing furnace
The stability contorting of atmosphere.
3) bellows cooling is used, it is necessary to each bellows carry out the configuration of relevant device, and each bellows must configure one
Individual circulating fan, is reconfigured at a heat exchanger, thus adds the input of equipment structure, and to maintenance from now on and maintenance
The most unfavorable.
Open (bulletin) number discloses for " CN102016410A ", invention entitled " surface coating of radiation cooling " patent
A kind of technical scheme, provides a kind of surface coating, this table by adding microsphere in the compositions containing solar reflective pigment
Coating materials has the low sun and absorbs, and in ultrared with the wavelength preferential emission corresponding to atmospheric window.But, this radiation is cold
But it is mainly used in coating is dried, there is no relatedness with heat-treatment of annealing technique.
Invention entitled " radiant coolers and assembly method thereof " patent discloses a kind of assembling radiant coolers 57, bag
Including, it is provided that vessel shell 100, this vessel shell 100 includes that being defined in the air-flow substantially axially extending through vessel shell therein leads to
Road；Multiple cooling tubes 124 and multiple down-comer 150 are linked together to be formed pipe cage 120, in plurality of cooling tube extremely
Few one is circumferentially positioned in that a pair circumferentially-adjacent and between the down-comer that separates；And in vessel shell, pipe cage is oriented such that
Obtain pipe cage to connect with circulation road stream.Described method includes: providing vessel shell, described vessel shell includes being defined in described vessel shell
The gas channel substantially axially extending through described vessel shell；Multiple cooling tubes and multiple down-comer are linked together with
Forming pipe cage, wherein, at least one in the plurality of cooling tube is circumferentially positioned in a pair decline that is circumferentially-adjacent and that separate
Between pipe；And in described vessel shell, described pipe cage is oriented so that described pipe cage connects with described circulation road stream.
But, what this art solutions illustrated is the assemble method of a kind of radiant coolers, and this radiant coolers with
Structure and the thorough fare of this problem radiant coolers do not have dependency.
Open (bulletin) number discloses one put for " CN1560522 ", invention entitled " displacement ventilation radiator " patent
Change ventilation irradiator, belong to HVAC & R field.The present invention includes irradiator, permutation ventilator two parts, and irradiator sets
Putting on the wooden partition of side, permutation ventilator indoor, using the wooden partition of permutation ventilator as its base plate, irradiator and displacement are logical
Wind device is set together back-to-back.Have replacement aeration and the feature of radiation cooling heating technique concurrently, can not only be logical with displacement
Wind mode carries new wind to room, removes indoor humidity load, meets the fresh air needs of personnel；Irradiator pair can also be passed through
Room cools down or heats, and undertakes the aobvious cold or sensible heat load of indoor, improves thermal comfort level and the air quality of indoor,
Save air conditioning energy consumption and space.And apparatus of the present invention directly use the chilled water being commonly designed temperature 7 DEG C, device is originally
The guarantee radiator surface that is configured to of body no longer condenses.
But, this patent is mainly used in Factory Building dehumidifying, pre-anti-condensation, and its structure and using method are not closed with this problem
Connection.
Summary of the invention
To this end, this area needs a kind of annealing furnace radiation cooling system slow cooling section device and control method, to improve continuously
The stability of annealing unit slow cooling section technique, it is to avoid directly produced drawback during purging cooling, meanwhile, it is capable to stably improve plate
Shape and stable furnace pressure, produce the stability contorting with product quality continuously and serve the effect of guarantee for unit.
For overcoming the problems referred to above, present invention aim at, it is provided that a kind of annealing furnace radiation cooling system slow cooling section device and
Control method, according to described a kind of annealing furnace radiation cooling system and control method, orientation silicon steel continuous annealing unit is producing
During, employing " annealing furnace radiation cooling system and control method " can avoid the slow cooling section in annealing furnace directly to purge strip steel
The adverse consequences brought of cooling means, by the reasonable Arrangement of radial canal, it is possible to the upper and lower surface of strip steel is carried out uniformly
Cool down slowly；Meanwhile, using the Temperature Feedback in burner hearth, in making radial canal, cooling air delivery controls interlocking realization with temperature
Closed loop control, this control method stabilizes the fire box temperature in annealing furnace and the cooldown rate to strip steel, has ensured Slow cooling
Effect.
According to the present invention, the production technology of slow cooling section can be set by original target temperature, according in burner hearth
Actual temperature, the gas flow in radiation cooled tube is automatically adjusted along with the demand of fire box temperature, and its control method compares
Simply, workable, daily being easy to is safeguarded.
The following technical scheme of technical scheme of the annealing furnace radiation cooling system slow cooling section device of the present invention is as follows:
A kind of annealing furnace radiation cooling system slow cooling section device, it is characterised in that
Described slow cooling section device is set to 4--8 section, each section be respectively provided with an air flow control valve 3 and
Temperature monitor, when temperature monitor detects in-furnace temperature, information regulates air mass flow by feedback controller 11 and adjusts
Joint valve；
Each section all radiates sleeve pipe 2 in the upper and lower arranged crosswise of strip steel, is radiated by the cold air in radiation sleeve pipe
Strip steel is carried out cooling down,
The air flow control valve 3 connecting each section is discharged by exhaust chimney 6 after air line 4 is connected to air exhauster 5.
Wherein, stove (1): only represent the slow cooling section of annealing furnace in this programme.
Chimney (6): be that irradiated waste gas is discharged outside Factory Building by air exhauster by air line (4), it is to avoid shadow
Ring the ambient temperature of on-site.
Air exhauster (5): be the driving original paper of radiation cooling procedure hollow flow of air, uses the mode of convulsion to be circulated,
Hot-air can be made to concentrate discharge in pipeline (4).
Air flow control valve (3): for controlling the cold air flow by all radiation sleeve pipes in each section, final mesh
Be to control the temperature in burner hearth, it is ensured that chilling temperature and the cooldown rate to strip steel.
Temperature monitor (7,8,9,10): be the actual furnace temperature of each section in detection stove.
Feedback controller (11): compared with setting value by the in-furnace temperature detected, it is right to be controlled by programed interlocking
Flow control valve sends the instruction of adjustment.
According to a kind of annealing furnace radiation cooling system slow cooling section of the present invention device, it is characterised in that
The flow control valve 3 connecting each section is discharged by exhaust chimney 6 after air line 4 is connected to air exhauster 5.
According to a kind of annealing furnace radiation cooling system slow cooling section of the present invention device, it is characterised in that described radiation set
Pipe 2 is that a kind of top-bottom cross is arranged, used air exhauster to carry out the assembled casing of radiation displacement.It is illustrated in fig. 3 shown below.
Described radiation sleeve pipe 2 is the most reasonably to be arranged in annealing furnace by cooling radial canal, and is top-bottom cross cloth
Put；Use air exhauster to carry out radiation displacement, and the convulsion amount of each section air line all has battery valve to automatically control, its air
Flow and the most relevant control of fire box temperature.
According to a kind of annealing furnace radiation cooling system slow cooling section of the present invention device, it is characterised in that all of radiation
Sleeve pipe is all connected with air line, is provided with cold air inlet (101), arranges one on the top of inner sleeve in described radiation sleeve pipe 2
Individual air outlet 103.
According to a kind of annealing furnace radiation cooling system slow cooling section of the present invention device, it is characterised in that described slow cooling section
Device 1 arranges four sections.
According to a kind of annealing furnace radiation cooling system slow cooling section of the present invention device, it is characterised in that described the coldest
But radiation sleeve pipe controls at 50mm--150mm with the spacing of strip steel.
A kind of annealing furnace radiation cooling system slow cooling section control method, it is characterised in that
Arranging annealing furnace radiation cooling system slow cooling section device, described slow cooling section device 1 is set to 4-8 section, each
Section arranges an air flow control valve 3, and each stove district of slow cooling section is respectively provided with temperature monitor, when temperature monitor is examined
When measuring in-furnace temperature, information is regulated air flow rate adjustment valve by feedback controller 11；Each section is all at strip steel
Upper and lower arranged crosswise radiation sleeve pipe 2, carries out cooling down by the cold air radiation in radiation sleeve pipe to strip steel.
According to a kind of annealing furnace radiation cooling system slow cooling section of the present invention control method, it is characterised in that
Described radiation sleeve pipe 2 is that a kind of top-bottom cross is arranged, used air exhauster to carry out the assembled casing of radiation displacement,
The convulsion amount of each section air line is automatically controlled by battery valve, closes air mass flow with fire box temperature
Joint control system.
According to described a kind of annealing furnace radiation cooling system slow cooling section of the present invention control method, it is characterised in that institute
Some radiation sleeve pipes are all connected with air line, are provided with cold air inlet (101), on the top of inner sleeve in described radiation sleeve pipe 2
End arranges an air outlet 103.
According to described a kind of annealing furnace radiation cooling system slow cooling section of the present invention control method, it is characterised in that institute
State slow cooling section device 1 and four sections are set.
According to described a kind of annealing furnace radiation cooling system slow cooling section of the present invention control method, it is characterised in that institute
The spacing stating cooling radiation sleeve pipe and strip steel up and down controls at 50mm--150mm.
According to a kind of annealing furnace radiation cooling system slow cooling section of the present invention device, it is characterised in that described radiation set
Pipe 2 is that a kind of top-bottom cross is arranged, used air exhauster to carry out radiating Permutations combination sleeve pipe.
According to the present invention, air outlet 106 is connected with the air line 4 in diagram 2, and all of radiation sleeve pipe is all with empty
Feed channel connects, and realizes the flowing of gas eventually through air exhauster, and discharges outside factory.
Inner sleeve 102 is the sleeve pipe entering cold air, and the gas temperature during entering will slightly rise, in inner sleeve
The top of pipe arranges an air outlet 103, it is possible in making cold air make stove, the temperature of whole radial canal reduces, thus reaches band
The effect of steel cold emission.
According to a kind of annealing furnace radiation cooling system slow cooling section of the present invention device, it is characterised in that whole radiation is cold
But sleeve pipe is consistent with annealing furnace at width, it is simple to two ends can be fixed with furnace wall.
The technical scheme of the annealing furnace radiation cooling system slow cooling section control method of the present invention is as follows:
A kind of annealing furnace radiation cooling system slow cooling section control method, it is characterised in that
Arranging annealing furnace radiation cooling system slow cooling section device, described slow cooling section device 1 is set to multiple section, Mei Gequ
Section arranges an air flow control valve 3, and each stove district of slow cooling section is respectively provided with temperature monitor, when temperature monitor detects
During to in-furnace temperature, information is regulated air flow rate adjustment valve by feedback controller 11；All upper at strip steel of each section
Lower section arranged crosswise radiation sleeve pipe 2, carries out cooling down by the cold air radiation in radiation sleeve pipe to strip steel.
According to the present invention, orientation silicon steel continuous annealing unit in process of production, use " annealing furnace radiation cooling system and
Control method " slow cooling section in annealing furnace can be avoided directly to purge the adverse consequences that the cooling means of strip steel is brought, pass through
The reasonable Arrangement of radial canal, it is possible to carry out uniformly cooling down slowly to the upper and lower surface of strip steel；Meanwhile, the temperature in burner hearth is used
Feedback, in making radial canal, cooling air delivery realizes closed loop control with temperature control interlocking, and this control method stabilizes annealing furnace
Interior fire box temperature and the cooldown rate to strip steel, ensured the effect of Slow cooling.
According to the present invention, the production technology of slow cooling section can be set by original target temperature, according in burner hearth
Actual temperature, the gas flow in radiation cooled tube is automatically adjusted along with the demand of fire box temperature, and its control method compares
Simply, workable, daily being easy to is safeguarded.
As in figure 2 it is shown, system solution is mainly formed by with lower component, slow cooling section 1 is set to four sections, this programme
According to technological requirement as a example by four sections, can increase the section quantity of slow cooling section, each section arranges an air mass flow
Control valve 3, each stove district of slow cooling section sets temperature monitor 7,8,9,10 respectively, temperature in temperature monitor detects stove
When spending, information is regulated air flow rate adjustment valve by feedback controller 11；Each section is all at the top-bottom cross cloth of strip steel
Put radiation sleeve pipe 2, by the cold air radiation in radiation sleeve pipe, strip steel is carried out cooling down.Associated components in this system
Major function as follows:
Chimney (6): be that irradiated waste gas is discharged outside Factory Building by air exhauster by air line (4), it is to avoid shadow
Ring the ambient temperature of on-site.
Air exhauster (5): be the driving original paper of radiation cooling procedure hollow flow of air, uses the mode of convulsion to be circulated,
Hot-air can be made to concentrate discharge in pipeline (4).
Flow control valve (3): for controlling the cold air flow by all radiation sleeve pipes in each section, final purpose is
Control the temperature in burner hearth, it is ensured that chilling temperature and the cooldown rate to strip steel.
Temperature monitor (7,8,9,10): be the actual furnace temperature of each section in detection stove.
Feedback controller (11): compared with setting value by the in-furnace temperature detected, it is right to be controlled by programed interlocking
Flow control valve sends the instruction of adjustment.
Stove (1): only represent the slow cooling section of annealing furnace in this programme.
Radiation sleeve pipe (2): be a kind of assembled casing, be illustrated in fig. 3 shown below:
Cold air inlet (101) is the suction inlet of cold air.
Air outlet (106) is connected with the air line (4) in diagram 2, and all of radiation sleeve pipe is equal and air line
Connect, realize the flowing of gas eventually through air exhauster, and discharge outside factory.
Inner sleeve (102) is the sleeve pipe entering cold air, and the gas temperature during entering will slightly rise, including
The top of sleeve pipe arranges an air outlet (103), it is possible in making cold air make stove, the temperature of whole radial canal reduces, thus reaches
Effect to strip steel cold emission.
Whole radiation cooling jacket is consistent with annealing furnace at width, it is simple to two ends can be fixed with furnace wall.
Accompanying drawing explanation
The bellows purging cooling side that Fig. 1 is used by the slow cooling section of certain steel enterprise orientation silicon steel one phase hot drawing annealing unit
Method.
Fig. 2 is the annealing furnace slow cooling section schematic diagram of the present invention.
Fig. 3 is the radiation sleeve pipe schematic diagram of the present invention.
Fig. 4 is cooling radial canal schematic layout pattern in stove of the present invention.
In figure, 1 is (annealing furnace) slow cooling section, and 2 is radiation sleeve pipe, and 3 is air flow control valve, and 4 is air line, 5
For air exhauster, 6 is exhaust chimney, and 7-10 is temperature monitor, and 11 is feedback controller, by the cold air in radiation sleeve pipe
Radiation carries out cooling down to strip steel.101 is cold air inlet, and 102 is inner sleeve, and inner sleeve 103 is air outlet, and 104 is outward
Sleeve pipe, 105 is bracing frame, and 106 is air outlet, and 107 is furnace wall.202 is strip steel, and 203 is upper radial canal, and 204 is lower radial canal.
301 is upper bellows, and 302 is overdraught, and 303 is lower bellows, and 304 is downstream.
Detailed description of the invention
Hereinafter, for embodiment, illustrate the present invention.
Embodiment 1
The enforcement control method of the present invention is:
Whole slow cooling section can be divided into 4--8 section, each section (or two sections) can configure an air exhauster, can
With according to actual needs, the blower fan of differently configured power.
According to cooling requirement, in each section, configure a number of radiation cooling jacket, and by radiation cooled tube
Arranged crosswise is in the upper and lower surface of strip steel.
Cooling radiation sleeve pipe controls at 50mm--150mm with the spacing of strip steel up and down.
Temperature monitor is set at each section, air discharge duct arranges flow control valve, is fed back by information
Controller regulates the air mass flow of radial canal, thus realizes regulating the purpose of in-furnace temperature.
In stove, radial canal is arranged as shown in Figure 4.
As it can be seen, according to strip steel in the physical location of stove internal channel line, the furnace wall of annealing furnace both sides is respectively mounted
Radiation sleeve pipe, and make sleeve pipe the most spaced apart, the beneficially uniformity in cooling procedure and stability.
According to the present invention, combine the plate shape improvement that orientation silicon steel one phase insulating coating annealing unit exists in annealing process
Bad and propose, by after orientation silicon steel second phase this cooling means of 2#FCL units, allround fastness slow cooling section cold
But speed, the atmosphere content of each section in simultaneously also stabilizing annealing furnace.Avoid bellows examination directly purging cooling to be caused
Inhomogeneous cooling is even, furnace pressure is unstable, template improves the consequences such as bad, producing continuously and technique for insulating coating annealing unit
Stability contorting is laid a good foundation.
Air mass flow solenoid electric valve involved in the present invention is all automatically controlled by program, and each with slow cooling section
In section, your actual temperature establishes relevant interlocking, when in-furnace temperature needs conversion or adjusts when, and corresponding electromagnetism
To there is the change of state therewith in control valve, is guaranteed the temperature in burner hearth by the change of air mass flow, also ensure that equally
The requirement of strip steel cooldown rate.
Its specification of radiation cooling jacket involved in the present invention and size are unrestricted, but, when mounted must jail
Gu on the furnace wall of both sides；Simultaneously, it is necessary to ensure that the flow of all radial canals is consistent, like this, it is simple to control each
The temperature of section.
What discharge blower fan involved in the present invention can use routine determines frequency motor, if using frequency conversion motor, then cannot
The flow of Balance route waste gas header, controls more to complicate to the temperature in stove.
The present invention is at certain share silicon steel portion of iron and steel enterprise second phase 2#FCL unit Successful utilization, it is achieved different speeds of production, no
Slow cooling section cooling-production technology with product specification, it is to avoid and the many adverse consequencess that cause bad due to cooldown rate.And
And there is the feature of simple in equipment, convenient operating maintenance, and in the today carrying forward vigorously low-carbon emission reduction, its feasibility and popularization
Value space is the biggest.
Claims (8)
1. an annealing furnace radiation cooling system slow cooling section device, it is characterised in that
Described slow cooling section device is set to 4--8 section, and each section is respectively provided with an air flow control valve (3) and temperature
Degree detector, when temperature monitor detects in-furnace temperature, information regulates air mass flow by feedback controller (11) and adjusts
Joint valve；
Each section all radiates sleeve pipe (2) in the upper and lower arranged crosswise of strip steel, is come by the cold air radiation in radiation sleeve pipe
Strip steel is carried out cooling down,
Connect the air flow control valve (3) of each section after air line (4) is connected to air exhauster (5) by exhaust chimney (6)
Discharge,
The cooling radiation sleeve pipe of described upper and lower arranged crosswise controls at 50mm--150mm with the spacing of strip steel,
Described radiation cooling jacket is firmly on furnace wall, both sides, simultaneously, it is ensured that the flow of all radial canals is consistent.
2. a kind of annealing furnace radiation cooling system slow cooling section device, it is characterised in that described radiation sleeve pipe
(2) it is that a kind of top-bottom cross is arranged, used air exhauster to carry out the assembled casing of radiation displacement,
The convulsion amount of each section air line is automatically controlled by battery valve, and air mass flow and fire box temperature are associated control
System.
3. a kind of annealing furnace radiation cooling system slow cooling section device, it is characterised in that all of radiation set
Guan Junyu air line connects, and is provided with cold air inlet (101), arranges one on the top of inner sleeve in described radiation sleeve pipe (2)
Individual air outlet (103).
4. a kind of annealing furnace radiation cooling system slow cooling section device, it is characterised in that described slow cooling section fills
Put (1) and four sections are set.
5. an annealing furnace radiation cooling system slow cooling section control method, it is characterised in that annealing furnace radiation cooling system is set
Slow cooling section device, described slow cooling section device (1) is set to 4-8 section, and each section arranges an air flow control valve
(3), each stove district of slow cooling section is respectively provided with temperature monitor, when temperature monitor detects in-furnace temperature, information is led to
Cross feedback controller (11) and regulate air flow rate adjustment valve；Each section is all at the upper and lower arranged crosswise radiation set of strip steel
Pipe (2), carries out cooling down by the cold air radiation in radiation sleeve pipe to strip steel,
The cooling radiation sleeve pipe of described upper and lower arranged crosswise controls at 50MM--150MM with the spacing of strip steel,
Described radiation cooling jacket is firmly on furnace wall, both sides, simultaneously, it is ensured that the flow of all radial canals is consistent.
6. a kind of annealing furnace radiation cooling system slow cooling section control method, it is characterised in that
Described radiation sleeve pipe (2) is that a kind of top-bottom cross is arranged, used air exhauster to carry out the assembled casing of radiation displacement, Mei Gequ
The convulsion amount of section air line is automatically controlled by battery valve, is associated controlling to air mass flow and fire box temperature.
7. a kind of annealing furnace radiation cooling system slow cooling section control method, it is characterised in that all of spoke
Penetrate sleeve pipe to be all connected with air line, described radiation sleeve pipe (2) is provided with cold air inlet (101), sets on the top of inner sleeve
Put an air outlet (103).
8. a kind of annealing furnace radiation cooling system slow cooling section control method, it is characterised in that described slow cooling
Section apparatus (1) arranges four sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310257345.0A CN104250678B (en) | 2013-06-25 | 2013-06-25 | Horizental annealer radiation cooling system slow cooling section device and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310257345.0A CN104250678B (en) | 2013-06-25 | 2013-06-25 | Horizental annealer radiation cooling system slow cooling section device and control method |
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| Publication Number | Publication Date |
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| CN104250678A CN104250678A (en) | 2014-12-31 |
| CN104250678B true CN104250678B (en) | 2016-12-28 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2570300Y (en) * | 2002-09-11 | 2003-09-03 | 陆峥 | Speed regulation and controlled blowing cooling device |
| CN201512565U (en) * | 2009-08-21 | 2010-06-23 | 武汉钢铁(集团)公司 | Jet flow slow cooling device of electric heating cover type furnace |
| CN202595217U (en) * | 2012-02-17 | 2012-12-12 | 宝山钢铁股份有限公司 | Band steel cooling system |
-
2013
- 2013-06-25 CN CN201310257345.0A patent/CN104250678B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2570300Y (en) * | 2002-09-11 | 2003-09-03 | 陆峥 | Speed regulation and controlled blowing cooling device |
| CN201512565U (en) * | 2009-08-21 | 2010-06-23 | 武汉钢铁(集团)公司 | Jet flow slow cooling device of electric heating cover type furnace |
| CN202595217U (en) * | 2012-02-17 | 2012-12-12 | 宝山钢铁股份有限公司 | Band steel cooling system |
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| Publication number | Publication date |
|---|---|
| CN104250678A (en) | 2014-12-31 |
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