CN103433309B - Device for controlling and simulating cooling rate of high-speed Steyr air cooling line - Google Patents
Device for controlling and simulating cooling rate of high-speed Steyr air cooling line Download PDFInfo
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- CN103433309B CN103433309B CN201310363294.XA CN201310363294A CN103433309B CN 103433309 B CN103433309 B CN 103433309B CN 201310363294 A CN201310363294 A CN 201310363294A CN 103433309 B CN103433309 B CN 103433309B
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Abstract
The invention discloses a device for controlling and simulating the cooling rate of a high-speed Steyr air cooling line and belongs to the technical field of material cooling control equipment. The device for controlling and simulating the cooling rate of the high-speed Steyr air cooling line comprises an inner layer, an outer layer, a circulating water interlayer, a water inlet pipe, a water outlet pipe, a partition board, a heating device, a water pump, a flowmeter and a pressure gauge, wherein the inner layer and the outer layer are connected through the bottom partition board to form the circulating water interlayer, the bottom partition board is connected with the inner layer and the outer layer in a welding mode, the bottom partition board is in a shape of an L, no partition board is arranged on the lateral wall of the left side of the inner layer and the outer layer, and the partition board is arranged on the lateral wall of the right side of the inner layer and the outer layer; water in a water tank is led into the interlayer via the water inlet pipe through the water pump, the flowmeter and the pressure gauge, then the water is discharged into the water tank through the water outlet pipe, and then a circulating circuit is formed. The device for controlling and simulating the cooling rate of the high-speed Steyr air cooling line has the advantages that the steel plate cooling rate can be accurately controlled to be within the range of 3-40 DEG C / s, and simulation of the cooling condition of the Steyr air cooling line in a pilot plant test is achieved.
Description
Technical field
The invention belongs to material control-cooling equipment technical field, in particular, provide a kind of device of control simulation height line Stanermo wind-cooling linear cooling rate.For laboratory's wire rod new varieties research and development, process optimization and basic research, simulate high line Stanermo wind-cooling linear cooling condition, the control device of low cooling rate (3 ~ 40 DEG C/s) can be realized.
Background technology
Wire production is justifying-oval groove high speed rolling, and after weaving silk, on Stanermo wind-cooling linear, structural transformation control is carried out in cooling.At present, there is no wire rod middle simulated test testing machine both at home and abroad.Wire rod developing new product variety obtains the difficult point that structure property accurately becomes laboratory's research and development, current each steel mill and scientific research institutions' pilot scale many employings 2 roller plate mill.And plate mill adopts water cooling box cooling, cooling capacity at least reaches 50 ~ 200 DEG C/s.And wire rod produces on high line Stanermo wind-cooling linear, the maximum cooling rate of blower fan can reach 20 DEG C/s, and cooling rate scope is at 3 ~ 20 DEG C/s.Adopt water cooling box cannot realize the development requires of variety of Wire Rod, become the difficult point of laboratory's exploitation.Variety of Wire Rod such as cold-heading steel grade produces 8.8 grades and above high-level bolt, and traditional processing technology all adopts modified (quenching+tempering) to process, and causes that environmental pollution is serious, process procedure is complicated and cost is higher.The F+M of the hot rolling of active research exploitation both at home and abroad at present dual phase steel, substitutes modifier treatment.Only cancel modifier treatment one, the cost-saving 800-1000 unit of ton steel, hot-rolled dual-phase steel becomes one of direction of high-strength steel development.And develop double-phase cold heading steel kind, need component system design, composition adjustment and optimization, it is vital for obtaining performance and duplex structure's ratio accurately, is the key of dual phase steel exploitation.For another example the steel grade of the forced air cooling such as steel strand wires, steel cord carries out alloying component optimization, needs to obtain cooling rate accurately, and controls sorbite rate and pearlite colony size.Accurately cannot control the restraining factors that cooling rate becomes the research and development of variety of Wire Rod laboratory.
Because domestic and international pilot plant test room all adopts 2 roller mills+water cooling box controlled cooling model, cooling capacity can reach 50 ~ 200 DEG C/s.The cold process of double-phase cold heading steel control can only adopt sub-sectional cooling to control duplex structure, and sub-sectional cooling schematic diagram is as Fig. 1.Sub-sectional cooling there will be pearlite or bainite middle temperature transformation tissue in constant temperature process, cannot realize duplex structure and control.
Summary of the invention
The object of the present invention is to provide a kind of device of control simulation height line Stanermo wind-cooling linear cooling rate, overcome the shortcoming that water cooling box cooling rate is excessive, at the uniform velocity cool within the scope of accurate control 3 ~ 40 DEG C/s cooling rate, achieve the air-cooled ability of accurate simulation height line stelmor.
The present invention includes internal layer 1, skin 2, interlayer 3, water inlet pipe 4, outlet pipe 5, dividing plate 6, heater 7, water pump 8, flowmeter 9, Pressure gauge 10.Internal layer 1 and outer 2 is connected to form circulating water sandwich 3 by increasing dividing plate 6 in bottom, the dividing plate 6 increased in bottom respectively with internal layer 1 and outer 2 by being welded to connect.
increase in bottom dividing plate 6l-shaped, sidewall non-inductive windings on the left of internal layer 1 and outer 2, right sidewall has dividing plate.By water pump 8, flowmeter 9 and Pressure gauge 10 by the water of tank 11 via water inlet pipe 4, introduce in interlayer 3, then be discharged to tank 11 by outlet pipe 5, form closed circuit.Deposit at the uniform velocity cooling fluid in internal layer 1, bottom outer 2, heater 7 is installed.
By water pump 8, flowmeter 9 and Pressure gauge 10, by the water of tank 11 via water inlet pipe 4, introduce in interlayer 3, after interlayer 3 piles water, switch off the pump 8, water inlet pipe 4 and outlet pipe 5, formed and close water bath.Adopt heater 7 to add heat-seal water bath temperature, realize controlling at the uniform velocity coolant temperature by convection current and heat transfer by heat conduction mode, realize controlling steel plate at the uniform velocity cooling fluid cooling rate within the scope of 3 ~ 7 DEG C/s.
At the high line of simulation, when needs steel plate cooling velocity is within the scope of 7 ~ 40 DEG C/s, according to the cooling rate curve known (see Fig. 4) that different-thickness or diameter steel plate/line obtain under difference at the uniform velocity coolant temperature, at the uniform velocity coolant temperature should be less than or equal to 50 DEG C.Now, open water pump 8, by the water of tank 11, by flowmeter 9 and Pressure gauge 10, via water inlet pipe 4, introduce in interlayer 3, then be discharged to tank 11 by outlet pipe 5.Described at the uniform velocity coolant temperature controls, and is to be realized by the flow of flowmeter 9 and Pressure gauge 10 controlled circulation water and pressure, needs to select corresponding flow and pressure according to the needs of steel grade in test process.
Simulation high line, when needs steel plate cooling velocity is within the scope of 3 ~ 7 DEG C/s, according to Fig. 4, need control at the uniform velocity coolant temperature higher than 50 DEG C.Now, switch off the pump 8, water inlet pipe 4 and outlet pipe 5, formed and close water bath, open heater 7.Described at the uniform velocity coolant temperature controls, and is control heater 7 by attemperating unit 12, heats closed water bath, and transfers heat at the uniform velocity cooling fluid by convection current and heat transfer by heat conduction mode and realize.
The invention has the advantages that, use this device accurately can control steel plate cooling rate within the scope of 3 ~ 40 DEG C/s, realize the high line Stanermo wind-cooling linear cooling condition of simulation.
Accompanying drawing explanation
Fig. 1 is pilot scale water cooling box sub-sectional cooling and contrive equipment continuous cooling curve schematic diagram.Can find, dual phase steel adopts water cooling box sub-sectional cooling process easily to occur the middle temperature transformation such as pearlite, bainite tissue, and contrive equipment can obtain good duplex structure.
Fig. 2 is pilot scale heating furnace, milling train and at the uniform velocity cooling controller schematic diagram.
Fig. 3 is the device schematic diagram of simulating high line Stanermo wind-cooling linear cooling rate.Wherein, internal layer 1, skin 2, interlayer 3, water inlet pipe 4, outlet pipe 5, dividing plate 6, heater 7, water pump 8, flowmeter 9, Pressure gauge 10, tank 11, attemperating unit 12.
Fig. 4 is the cooling rate curve that different-thickness or diameter steel plate/line obtain under difference at the uniform velocity coolant temperature.
Detailed description of the invention
Embodiment 1
The present invention includes internal layer 1, skin 2, interlayer 3, water inlet pipe 4, outlet pipe 5, dividing plate 6, water pump 8, flowmeter 9, Pressure gauge 10, tank 11.Internal layer 1 and outer 2 is connected to form circulating water sandwich 3 by increasing dividing plate 6 in bottom, the dividing plate 6 increased in bottom respectively with internal layer 1 and outer 2 by being welded to connect.Dividing plate 6 l-shaped increased in bottom, sidewall non-inductive windings on the left of internal layer 1 and outer 2, right sidewall has dividing plate.By water pump 8, flowmeter 9 and Pressure gauge 10, by the water of tank 11 via water inlet pipe 4, introduce in interlayer 3, then be discharged to tank 11 by outlet pipe 5, form closed circuit.Deposit at the uniform velocity cooling fluid in internal layer 1, bottom outer 2, heater 7 is installed.
When simulating cooling rate within the scope of high line Stanermo wind-cooling linear 7 ~ 40 DEG C/s, open water pump 8, by the water of tank 11, by flowmeter 9 and Pressure gauge 10, via water inlet pipe 4, introduce in interlayer 3, then be discharged to tank 11 by outlet pipe 5.Described at the uniform velocity coolant temperature controls, and is to be realized by the flow of flowmeter 9 and Pressure gauge 10 controlled circulation water and pressure, needs to select corresponding flow and pressure according to the needs of steel grade in test process.
Embodiment 2
The present invention includes internal layer 1, skin 2, interlayer 3, water inlet pipe 4, outlet pipe 5, dividing plate 6, heater 7, water pump 8, flowmeter 9, Pressure gauge 10, tank 11, attemperating unit 12.Internal layer 1 and outer 2 is connected to form circulating water sandwich 3 by increasing dividing plate 6 in bottom, the dividing plate 6 increased in bottom respectively with internal layer 1 and outer 2 by being welded to connect.Dividing plate 6 l-shaped increased in bottom, sidewall non-inductive windings on the left of internal layer 1 and outer 2, right sidewall has dividing plate.By water pump 8, flowmeter 9 and Pressure gauge 10, by the water of tank 11 via water inlet pipe 4, introduce in interlayer 3, after interlayer 3 piles water, switch off the pump 8, water inlet pipe 4 and outlet pipe 5, formed and close water bath.Deposit at the uniform velocity cooling fluid in internal layer 1, bottom outer 2, heater 7 is installed.
When simulating cooling rate within the scope of high line Stanermo wind-cooling linear 3 ~ 7 DEG C/s, switch off the pump 8, water inlet pipe 4 and outlet pipe 5, formed and close water bath, open heater 7.Described at the uniform velocity coolant temperature controls, and is control heater 7 by attemperating unit 12, heats closed water bath, and transfers heat at the uniform velocity cooling fluid by convection current and heat transfer by heat conduction mode and realize.
Claims (3)
1. the device of a control simulation height line Stanermo wind-cooling linear cooling rate, it is characterized in that, internal layer (1), outer (2), interlayer (3), water inlet pipe (4), outlet pipe (5), dividing plate (6), heater (7), water pump (8), flowmeter (9), Pressure gauge (10);
Internal layer (1) and outer (2) are connected to form interlayer (3) by increasing dividing plate (6) in bottom, the dividing plate (6) increased in bottom respectively with internal layer (1) and skin (2) by being welded to connect; Dividing plate (6) l-shaped increased in bottom, at internal layer (1) and outer (2) left side sidewall non-inductive windings, right sidewall has dividing plate; By water pump (8), flowmeter (9) and Pressure gauge (10) by the water of tank (11) via water inlet pipe (4), introduce in interlayer (3), be discharged to tank (11) by outlet pipe (5) again, form closed circuit;
By water pump (8), flowmeter (9) and Pressure gauge (10), by the water of tank (11) via water inlet pipe (4), introduce in interlayer (3), after interlayer (3) piles water, switch off the pump (8), water inlet pipe (4) and outlet pipe (5), formed and close water bath; In internal layer (1), deposit at the uniform velocity cooling fluid, in outer (2) bottom, heater (7) is installed; Adopt heater (7) to add heat-seal water bath temperature, realize controlling at the uniform velocity coolant temperature by convection current and heat transfer by heat conduction mode, realize controlling steel plate at the uniform velocity cooling fluid cooling rate within the scope of 3 ~ 7 DEG C/s.
2. device according to claim 1, it is characterized in that, when simulating cooling rate within the scope of high line Stanermo wind-cooling linear 7 ~ 40 DEG C/s, open water pump (8), by the water of tank (11), by flowmeter (9) and Pressure gauge (10), via water inlet pipe (4), introduce in interlayer (3), then be discharged to tank (11) by outlet pipe (5); At the uniform velocity coolant temperature controls, and is to be realized by the flow of flowmeter (9) and Pressure gauge (10) controlled circulation water and pressure.
3. device according to claim 1 and 2, it is characterized in that, when simulating cooling rate within the scope of high line Stanermo wind-cooling linear 3 ~ 7 DEG C/s, switch off the pump (8), water inlet pipe (4) and outlet pipe (5), formed and close water bath, open heater (7); At the uniform velocity coolant temperature controls to be control heater (7) by attemperating unit (12), heats, and transfer heat at the uniform velocity cooling fluid by convection current and heat transfer by heat conduction mode and realize closed water bath.
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| CN104550262A (en) * | 2014-12-15 | 2015-04-29 | 首钢总公司 | Method for controlling simulation of cooling speed of high-speed wire Stelmor air cooling line |
| RU2607869C1 (en) * | 2015-08-27 | 2017-01-20 | Публичное акционерное общество "Северский трубный завод" | Method of cooling metal sample in blower apparatus |
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| WO2005076977A2 (en) * | 2004-02-04 | 2005-08-25 | Surfect Technologies, Inc. | Plating apparatus and method |
| CN101413758A (en) * | 2008-11-28 | 2009-04-22 | 河南恒星科技股份有限公司 | High temperature waste hot gas recycling apparatus of steel curtain line austenite furnace |
| CN201439096U (en) * | 2009-07-16 | 2010-04-21 | 新疆八一钢铁股份有限公司 | Cold-rolling emulsion steam condensate recovery unit |
| CN102864793A (en) * | 2012-06-15 | 2013-01-09 | 中国科学院寒区旱区环境与工程研究所 | Test device for simulating permafrost region well heat insulation or heating |
| CN203090860U (en) * | 2013-02-04 | 2013-07-31 | 厦门艾贝森电子有限公司 | Mixing apparatus with heating device |
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- 2013-08-20 CN CN201310363294.XA patent/CN103433309B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| SU1708870A1 (en) * | 1989-05-22 | 1992-01-30 | Череповецкий Металлургический Комбинат Им.50-Летия Ссср | Guide system section |
| WO2005076977A2 (en) * | 2004-02-04 | 2005-08-25 | Surfect Technologies, Inc. | Plating apparatus and method |
| CN101413758A (en) * | 2008-11-28 | 2009-04-22 | 河南恒星科技股份有限公司 | High temperature waste hot gas recycling apparatus of steel curtain line austenite furnace |
| CN201439096U (en) * | 2009-07-16 | 2010-04-21 | 新疆八一钢铁股份有限公司 | Cold-rolling emulsion steam condensate recovery unit |
| CN102864793A (en) * | 2012-06-15 | 2013-01-09 | 中国科学院寒区旱区环境与工程研究所 | Test device for simulating permafrost region well heat insulation or heating |
| CN203090860U (en) * | 2013-02-04 | 2013-07-31 | 厦门艾贝森电子有限公司 | Mixing apparatus with heating device |
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Address after: 100041 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee after: Shougang Group Co. Ltd. Address before: 100041 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee before: Capital Iron & Steel General Company |