CN1286588C - On-line below intermediate temp. cooling system of plate - Google Patents
On-line below intermediate temp. cooling system of plate Download PDFInfo
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- CN1286588C CN1286588C CN 02135157 CN02135157A CN1286588C CN 1286588 C CN1286588 C CN 1286588C CN 02135157 CN02135157 CN 02135157 CN 02135157 A CN02135157 A CN 02135157A CN 1286588 C CN1286588 C CN 1286588C
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- steel plate
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- feed pipe
- pipe
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- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The present invention discloses an on-line cooling system below intermediate temperature for plates with medium-thickness. The upper part and the lower part of a conveying roller are provided with a vapor and fog cooling device comprising a water supply pipe and a spraying pipe, wherein a nozzle is arranged on the spraying pipe; an air supply pipe is connected with the spraying pipe; a high pressure positive blower is connected with the air supply pipe. A steel plate passes through on a roller way of a conveying channel, when the steel plate passes through, vapor is simultaneously sprayed on both sides of the steel plate, and cooling speed is from 1 to 5 DEG C /S. The present invention has the advantages of low consumed energy, high vapor cooling efficiency, achievement of rapidly cooling the steel plate after rolling without performance change, etc.
Description
Technical field
The present invention relates to metallurgical technology field, is a kind of system that makes the steel plate cooling in Heavy Plate Production.
Background technology
In metallurgy industry, the cooling of Heavy Plate Production, great majority are to adopt traditional cooling means, owing to can not realize quick cooling, are difficult to be implemented in and do not change any performance of steel plate in the cooling; Improvement technology in middle plate is produced in recent years, all based on four-high mill, because the increase of production capacity, the cooling capacity day of steel plate, inadequate contradiction was outstanding especially, and had restricted the production and the exploitation of personality board, low-alloy plate.
Summary of the invention
The objective of the invention is, provide a kind of cut deal online in the following cooling system of warm area, make it have the cooling of low, the high efficiency steam fog of power consumption, can realize rolling afterwards that steel plate cools off advantages such as no performance change fast.
The present invention for achieving the above object, be achieved through the following technical solutions: on rollgang and below installation steam fog cooling device, cooling device has feed pipe and jet pipe, nozzle is set on the jet pipe, the air feed pipe is connected with jet pipe, and high pressure positive blower is connected with the air feed pipe, and steel plate passes through on defeated road roller-way, by the time two sides steam fog on steel plate, spray simultaneously, cooling velocity is 1-5 ℃/S.
The steam fog cooling device has the 3-6 section, and every section is 6 groups, and every group is a single devices.The blast of high pressure positive blower is 1000-15000Kpa, and air quantity is 150-300m
3Hydraulic pressure in the/min, feed pipe is 0.05-0.3MPa, and water temperature is 20-40 ℃.Nozzle delivery port place is tapered.
The present invention is suitable for the warm area cooling in the steel plate of back of rolling below 550 ℃, learn through a large amount of experiments, its main feature is to realize rolling the back steel plate and cools off no performance fast and change, and than the cooling capacity raising of prior art more than 3 times, has that energy consumption is low, the efficient advantages of higher.Because the wind of pressure of the present invention, flow and water mix, during through nozzle ejection, can spray even, disperse, fine and closely woven steam fog, carry out heat exchange with the steel plate that is cooled, thus the quick cooling of realization steel plate.
The present invention can realize multiple different refrigerating mode, can satisfy the cut deal cooling of thickness 12-35mm different cultivars specification.The present invention can be according to different cultivars specification steel plate cooling requirement, the steam fog cooling group number of control vapour, water ratio and installation.
Description of drawings
Accompanying drawing 1 is one of embodiment of the invention floor plan; Accompanying drawing 2 is A-A cutaway views in the accompanying drawing 1, and main displaying monomer device structure shows that plane is made of several single devices;
Accompanying drawing 3 is steam fog cooling segmentation schematic diagrames.
The specific embodiment
Floor plan when Fig. 1 is a cooling metal sheets of the present invention is to be made of several single devices, and the structure of each single devices is with identical shown in the accompanying drawing 2.By among the figure as can be known, the motion of driven by motor rollgang, steel plate places on the rollgang, on rollgang and below the steam fog cooling device respectively is installed, the cooling device of each face is all installed feed pipe 2 and jet pipe 4, and water regulating valve 8 is installed on the feed pipe 2, nozzle 3 is installed on the jet pipe 4, jet pipe 4 is connected with air feed pipe 9, and high pressure positive blower is connected with air feed pipe 9, and feed pipe 2 is connected with jet pipe 4.According to the steel plate description of cooling, adjust blast, air quantity, hydraulic pressure, water temperature, cooling velocity etc., for example: steel plate thickness 20mm, length are that 6000mm, width are 1400mm, select blast 1200KPa, air quantity 150m
3/ min, 25 ℃ of hydraulic pressure 0.15MPa, water temperatures, water quality≤35PPm, cooling velocity is 2.5 ℃/S, when steel plate on rollgang by the time two sides steam fog simultaneously to steel plate spray (cooling velocity generally 1-5 ℃/S), eject evenly, disperse, fine and closely woven steam fog carry out heat exchange with the steel plate that is cooled, thereby reach goal of the invention.5 is cooling metal sheets among the figure, the 6th, and following jet pipe, the 7th, rollgang, the 1st, water control valve.
It is as follows that the present invention further narrates embodiment: (each section vapour, wetting system are seen steam fog cooling system segmentation schematic diagram)
1, steel grade Q235B opens 520 ℃ of cold temperature, steel plate width 2000mm, steel plate thickness 20mm.390 ℃ of steel plate final cooling temperatures, roller table speed V=0.7m/s.Refrigerating mode is a continous way, Total Water 60m
3/ h, total tolerance 210m
3/ min, 30 ± 2 ℃ of cooling water temperatures.Each section reaches and respectively organizes gas, water yield configuration sees Table one.The air water proportioning is 1: 1.5 up and down.
Continous way is cooled off each section gas, water configuration parameter table
Table one
| The I section | The II section | The | ||||||||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 1 | 2 | 3 | 4 | 5 | 6 | 1 | 2 | 3 | 4 | 5 | 6 | |
| Gas m 3/min | 4.00 | 4.00 | 4.00 | 4.00 | 4.00 | 4.00 | 4.60 | 4.60 | 4.60 | 4.60 | 4.60 | 4.60 | 5.40 | 5.40 | 5.40 | 5.40 | 5.40 | 5.40 |
| Water m 3/h | 1.10 | 1.10 | 110 | 1.10 | 1.10 | 1.10 | 1.30 | 1.30 | 1.30 | 1.30 | 1.30 | 1.30 | 1.60 | 1.60 | 1.60 | 1.60 | 1.60 | 1.60 |
| 1a | 2b | 3c | 4d | 5e | 6f | 1a | 2b | 3c | 4d | 5e | 6f | 1a | 2b | 3c | 4d | 5e | 6f | |
| Gas m 3/min | 6.00 | 6.00 | 6.00 | 6.00 | 6.00 | 6.00 | 6.90 | 6.90 | 6.90 | 6.90 | 6.90 | 6.90 | 8.10 | 8.10 | 8.10 | 8.10 | 8.10 | 8.10 |
| Water m 3/h | 1.65 | 1.65 | 1.65 | 1.65 | 1.65 | 1.65 | 1.95 | 1.95 | 1.95 | 1.95 | 1.95 | 1.95 | 2.40 | 2.40 | 2.40 | 2.40 | 2.40 | 2.40 |
2, steel grade Q345B opens 510 ℃ of cold temperature, steel plate width 2000mm, steel plate thickness 12mm.390 ℃ of steel plate final cooling temperatures, roller table speed V=0.7m/s.Refrigerating mode is the multistage broken-line type, Total Water 50m
3/ h, total tolerance 230m
3/ min, 30 ± 2 ℃ of cooling water temperatures.Each section reaches and respectively organizes vapour, water yield configuration sees Table two.The air water proportioning is 1: 1.5 up and down.
The multistage broken-line type cools off each section gas, water configuration parameter table
Table two
| The I section | The II section | The | ||||||||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 1 | 2 | 3 | 4 | 5 | 6 | 1 | 2 | 3 | 4 | 5 | 6 | |
| Gas m 3/min | 4.50 | 4.50 | 5.00 | 5.00 | 4.50 | 4.50 | 5.20 | 5.20 | 5.00 | 5.00 | 5.20 | 5.20 | 5.50 | 5.50 | 5.50 | 5.50 | 5.50 | 5.50 |
| Water m 3/h | 1.60 | 1.60 | 0 | 0 | 1.70 | 1.70 | 0 | 0 | 1.85 | 1.85 | 0 | 0 | 1.60 | 1.60 | 1.60 | 1.60 | 1.60 | 1.60 |
| 1a | 2b | 3c | 4d | 5e | 6f | 1a | 2b | 3c | 4d | 5e | 6f | 1a | 2b | 3c | 4d | 5e | 6f | |
| Gas m 3/min | 6.75 | 6.75 | 7.50 | 7.50 | 6.75 | 6.75 | 7.80 | 7.80 | 7.50 | 7.50 | 7.80 | 7.80 | 8.25 | 8.25 | 8.25 | 8.25 | 8.25 | 8.25 |
| Water m 3/h | 2.40 | 2.40 | 0 | 0 | 2.55 | 2.55 | 0 | 0 | 2.78 | 2.78 | 0 | 0 | 2.40 | 2.40 | 2.40 | 2.40 | 2.40 | 2.40 |
Claims (2)
1, the online middle following cooling system of warm area of cut deal, it is characterized in that: on rollgang and below installation steam fog cooling device, cooling device has feed pipe and jet pipe, nozzle is set on the jet pipe, the air feed pipe is connected with jet pipe, high pressure positive blower is connected with the air feed pipe, steel plate passes through on defeated road roller-way, by the time two sides steam fog on steel plate, spray simultaneously, cooling velocity is 1-5 ℃/S, the steam fog cooling device has the 3-6 section, every section is 6 groups, every group is a single devices, and the blast of high pressure positive blower is 1000-15000Kpa, and air quantity is 150-300m
3Hydraulic pressure in the/min, feed pipe is 0.05-0.3MPa, and water temperature is 20-40 ℃.
2, the online middle following cooling system of warm area of cut deal according to claim 1, it is characterized in that: nozzle delivery port place is tapered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02135157 CN1286588C (en) | 2002-07-02 | 2002-07-02 | On-line below intermediate temp. cooling system of plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02135157 CN1286588C (en) | 2002-07-02 | 2002-07-02 | On-line below intermediate temp. cooling system of plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1413779A CN1413779A (en) | 2003-04-30 |
| CN1286588C true CN1286588C (en) | 2006-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02135157 Expired - Fee Related CN1286588C (en) | 2002-07-02 | 2002-07-02 | On-line below intermediate temp. cooling system of plate |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101642780B (en) * | 2009-06-05 | 2012-05-23 | 中冶赛迪工程技术股份有限公司 | Intermediate blank cooling system and cooling control technology |
| CN105568367A (en) * | 2016-03-16 | 2016-05-11 | 江苏华盛天龙光电设备股份有限公司 | Single-crystal furnace discharge cooling system |
| CN114592112B (en) * | 2022-02-25 | 2023-03-17 | 东北大学 | Flexible cooling device for tempered steel plate |
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| CN1413779A (en) | 2003-04-30 |
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