CN202137210U - Uniform cooling device for wide and thick steel plates on rolling production line - Google Patents
Uniform cooling device for wide and thick steel plates on rolling production line Download PDFInfo
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- CN202137210U CN202137210U CN201120239680U CN201120239680U CN202137210U CN 202137210 U CN202137210 U CN 202137210U CN 201120239680 U CN201120239680 U CN 201120239680U CN 201120239680 U CN201120239680 U CN 201120239680U CN 202137210 U CN202137210 U CN 202137210U
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- thick steel
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Abstract
The utility model discloses a uniform cooling device for wide and thick steel plates on a rolling production line. The uniform cooling device comprises a plurality of metal water-cooling plate frames which are arranged among roller ways at intervals and comprise interlayer water ways respectively, each metal water-cooling plate frame is in the shape of an open ring which allows the wide and thick steel plates to pass when the metal water-cooling plate frame is seen from the direction which is vertical to the rolling production line, cooling water spray heads which are communicated with the interlayer water ways are uniformly distributed at the upper parts and the lower parts on the inner sides of annular openings of the metal water-cooling plate frames, a water inlet pipe and a water outlet pipe are respectively arranged at the two ends of the annular opening of each metal water-cooling plate frame, and the water inlet pipes and the water outlet pipes are respectively connected with two electrodes of a high-frequency electromagnetic generator. By adopting the uniform cooling device, the surface of wide and thick steel plates can be cooled uniformly, and the wide and thick steel plates also can be cooled uniformly along the thickness direction, thereby enabling the micro-organization structure and the comprehensive mechanical properties of each whole steel plate to tend to be the same and greatly improving the finished product rate of the wide and thick steel plates. Simultaneously, the structure is simple, the operation is convenient, the investment and the operation cost are low, and the popularization and the application are easy.
Description
Technical field
The utility model relates to steel rolling equipment, refers to the Wide and Heavy Plates homogeneous cooling apparatus on a kind of rolling line particularly.
Background technology
Reversible mill need quicken cooling to the steel plate after the finish rolling in the process of controlled rolling and controlled cooling Wide and Heavy Plates, purpose is the heterogeneous microstructure and the comprehensive mechanical property that obtain to expect.Existing steel plate cooling facility for laminar flow is at the roller-way of Wide and Heavy Plates process one group of tap to be installed respectively up and down, simultaneously to the steel plate shower.Usually; The pressure of upper water tap water column and the ratio of the pressure of bottom tap water column are 1: the scope of (1.2～3.5); Structures such as the density of prior art through changing ozzle for tap, shape, spray angle are cooling metal sheets as far as possible equably; Each position of surface of steel plate make steel plate consistent with performance, but the existing layer flow cooling system all can not change the thermograde of cooling procedure light plate surface to the centre, even can evenly be cooled off along the heterogeneous microstructure of thickness direction; But can not change the difference of steel plate thickness direction temperature, the heterogeneous microstructure at each position of steel plate thickness direction is different with performance like this.Especially for the steel plate of thickness greater than 40mm, though its surperficial performance and tissue meet the demands, the centre still can't meet the demands.
Summary of the invention
The purpose of the utility model is exactly that the homogeneous cooling apparatus of the Wide and Heavy Plates on a kind of rolling line will be provided.It is simple and practical, steel plate thermograde from heart portion to the surface in the process of cooling is fast tended to balance, thereby makes the heterogeneous microstructure of monoblock steel plate be tending towards identical with comprehensive mechanical property.
For realizing this purpose; Wide and Heavy Plates homogeneous cooling apparatus on the rolling line that the utility model designed; Comprise that a plurality of separation are between roller-way and have a metal water cooling frame of interlayer water channel; Said metal water cooling frame is the opening ring-type that allows Wide and Heavy Plates to pass from seeing perpendicular to the direction of rolling line; The circular opening inboard of said metal water cooling frame is evenly distributed with the cool water shower head that communicates with the interlayer water channel in the position up and down, and the circular opening two ends of said metal water cooling frame are respectively arranged with water inlet pipe and outlet pipe, and said water inlet pipe links to each other with two electrodes of high-frequency electromagnetic generator respectively with outlet pipe.
The design philosophy of the utility model is based on following consideration: the temperature of steel plate after rolling is generally 750～950 ℃; Under the condition of quickening to cool off of watering; Reduce gradually from steel plate heart portion to surface of steel plate thermograde; Because the cooldown rate along the steel plate thickness direction is different, will cause its physicochemical property different.If the said temperature gradient is eliminated, promptly steel plate is identical along each position cooldown rate of thickness direction, and then the physicochemical property at each position of steel plate thickness direction will reach unanimity.For this reason; The utility model quickens cooling to Wide and Heavy Plates through being distributed on the inboard cool water shower head of metal water cooling frame on the one hand from outside to inside; Apply high frequency electric for the metal water cooling frame of opening ring-type through the high-frequency electromagnetic generator on the other hand; Because the metal water cooling frame of opening ring-type is equivalent to a unicoil, be positioned at wherein Wide and Heavy Plates under electromagnetic induction from inside to outside by Fast Heating, the gradient that makes steel plate heart portion exist a kind of temperature to increase gradually to the surface; Thereby can offset the thermograde that reduces gradually that water-cooled forms, can obtain the cooldown rate that tends to balance from heart portion to surface of steel plate thermograde.
The advantage of the utility model is: it not only can obtain the evenly effect of cooling on the surface of Wide and Heavy Plates; And can be along the same evenly effect of cooling that obtains of its thickness direction; Thereby make the heterogeneous microstructure of monoblock steel plate be tending towards identical, significantly improve the rate of becoming a useful person of Wide and Heavy Plates with comprehensive mechanical property.Simultaneously, the utility model is simple in structure, operation is convenient, input and operating cost are cheap, is easy to apply.
Description of drawings
Fig. 1 is the structural representation of the Wide and Heavy Plates homogeneous cooling apparatus on a kind of rolling line.
Fig. 2 is the A-A sectional structure sketch map among Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to specify.
Wide and Heavy Plates homogeneous cooling apparatus on the rolling line shown in the figure; Have a plurality of separation between roller-way 1 and have a metal water cooling frame 3 of interlayer water channel; Metal water cooling frame 3 is the opening ring-type that allows Wide and Heavy Plates 2 to pass from seeing perpendicular to the direction of rolling line; The circular opening inboard of metal water cooling frame 3 up and down position is evenly distributed with the cool water shower that communicates with the interlayer water channel 5; The circular opening two ends of metal water cooling frame 3 are respectively arranged with water inlet pipe 6 and outlet pipe 7, and water inlet pipe 6 links to each other with two electrodes of high-frequency electromagnetic generator 4 respectively with outlet pipe 7.In order to ensure water-cooled and the electromagnetic induction heating effect to Wide and Heavy Plates 2, metal water cooling frame 3 is B=300～600mm along the width of rolling line direction.
The course of work of the utility model is: when the Wide and Heavy Plates 2 on the roller-way 1 gets into metal water cooling frame 3 in the process of advancing; Start cooling water circulation and high-frequency electromagnetic generator 4 simultaneously, according to parameters such as the thickness of Wide and Heavy Plates 2 and initial temperatures, parameters such as the spray angle through adjusting cool water shower 5, injection size are as far as possible evenly cooled off Wide and Heavy Plates 2 on the one hand; Regulate high-frequency electromagnetic generator 4 on the other hand; Make high frequency electric be transferred to metal water cooling frame 3, form and pass the highly dense magnetic line of force of Wide and Heavy Plates 2, and in Wide and Heavy Plates 2, form eddy current; Wide and Heavy Plates 2 temperature under electromagnetic induction rises rapidly; The thermograde of Wide and Heavy Plates 2 from heart portion to the surface reached unanimity, thereby, finally obtain the essentially identical product of heterogeneous microstructure and comprehensive mechanical property with identical cooldown rate cooling.
Claims (2)
1. the Wide and Heavy Plates homogeneous cooling apparatus on the rolling line; It is characterized in that: it comprises that a plurality of separation are between roller-way (1) and have a metal water cooling frame (3) of interlayer water channel; Said metal water cooling frame (3) is the opening ring-type that allows Wide and Heavy Plates (2) to pass from seeing perpendicular to the direction of rolling line; The circular opening inboard of said metal water cooling frame (3) is evenly distributed with the cool water shower head (5) that communicates with the interlayer water channel in the position up and down; The circular opening two ends of said metal water cooling frame (3) are respectively arranged with water inlet pipe (6) and outlet pipe (7), and said water inlet pipe (6) links to each other with two electrodes of high-frequency electromagnetic generator (4) respectively with outlet pipe (7).
2. the Wide and Heavy Plates homogeneous cooling apparatus on the rolling line according to claim 1 is characterized in that: said metal water cooling frame (3) is B=300～600mm along the width of rolling line direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120239680U CN202137210U (en) | 2011-07-08 | 2011-07-08 | Uniform cooling device for wide and thick steel plates on rolling production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120239680U CN202137210U (en) | 2011-07-08 | 2011-07-08 | Uniform cooling device for wide and thick steel plates on rolling production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202137210U true CN202137210U (en) | 2012-02-08 |
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ID=45548289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120239680U Expired - Fee Related CN202137210U (en) | 2011-07-08 | 2011-07-08 | Uniform cooling device for wide and thick steel plates on rolling production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202137210U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107839A (en) * | 2014-06-26 | 2014-10-22 | 武汉钢铁(集团)公司 | Method and device for improving super-rapid cooling evenness of hot rolled steel plate |
| CN113319130A (en) * | 2021-06-29 | 2021-08-31 | 燕山大学 | Continuous rolling plate temperature control method and device |
-
2011
- 2011-07-08 CN CN201120239680U patent/CN202137210U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107839A (en) * | 2014-06-26 | 2014-10-22 | 武汉钢铁(集团)公司 | Method and device for improving super-rapid cooling evenness of hot rolled steel plate |
| CN104107839B (en) * | 2014-06-26 | 2016-06-29 | 武汉钢铁(集团)公司 | Improve method and the device of hot rolled steel plate ultra-rapid cooling uniformity |
| CN113319130A (en) * | 2021-06-29 | 2021-08-31 | 燕山大学 | Continuous rolling plate temperature control method and device |
| CN113319130B (en) * | 2021-06-29 | 2022-03-15 | 燕山大学 | Continuous rolling plate temperature control method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20150708 |
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| EXPY | Termination of patent right or utility model |