CN215198521U - Device for removing yellow spot-shaped foreign matter pressing defect on upper surface of final water-cooling tank strip steel - Google Patents
Device for removing yellow spot-shaped foreign matter pressing defect on upper surface of final water-cooling tank strip steel Download PDFInfo
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- CN215198521U CN215198521U CN202121026754.6U CN202121026754U CN215198521U CN 215198521 U CN215198521 U CN 215198521U CN 202121026754 U CN202121026754 U CN 202121026754U CN 215198521 U CN215198521 U CN 215198521U
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Abstract
The utility model discloses a final water-cooling tank belted steel upper surface yellow spot form foreign matter defect clearing device that impresses, set up along belted steel width direction portable flat mouth form high-pressure squirt in final water-cooling tank, this squirt flat mouth spout is arranged and slope downwards along belted steel width direction sprays the belted steel upper surface, and according to the position that surface defect detection device detected belted steel upper surface yellow spot form foreign matter defect that impresses the corresponding automatic adjustment high-pressure squirt of position along belted steel width direction, the foreign matter of belted steel surface yellow spot form is clear away to the fixed point, thereby clean belted steel surface, the device can reduce final water-cooling tank demineralized water consumption; the production cost is reduced; the workload of manual intervention is reduced, and the realization of automatic production is facilitated; the shutdown operation time is reduced, and the production line operating rate is improved. The technical scheme is reliable, has very good practicability, is favorable for realizing continuous and stable production of the unit, reduces the shutdown operation and adjustment times of the unit, and has very good application prospect.
Description
Technical Field
The utility model relates to a belted steel continuous annealing heat treatment technical field, more precisely belongs to belted steel continuous annealing final water-cooling belted steel surface quality control technical field, especially relates to a defect clearing device is impressed to final water-cooling tank belted steel upper surface yellow spot form foreign matter.
Background
And in the strip steel continuous annealing unit, the strip steel is subjected to final water cooling after being subjected to final air injection cooling, so that the strip steel is cooled to be less than or equal to 45 ℃ and then is subjected to leveling treatment. The traditional immersion type water cooling system is shown in figure 1, a strip steel 1 turns through a water-cooled front turning roller 2 and then enters a final water cooling tank 4 downwards, cooling water is filled in the final water cooling tank 4 and maintains a certain liquid level, the strip steel is immersed under the liquid level for water cooling, turns through an immersion roller 3 and then runs upwards, is squeezed by a squeezing roller 5 and then enters a strip steel dryer 6 for drying, and then turns through a water-cooled back turning roller 7 and runs backwards. In the production process, a layer of precipitates mainly comprising Mn and Fe are easily adhered to the surface of the immersion roller 3, the precipitates are easily adhered to the surface of strip steel after a certain amount of precipitates are accumulated to cause yellow spot defects, the yellow spot defects are short, particularly for an annealing unit for producing high-strength steel and ultrahigh-strength steel, the Mn content of a substrate is high, the precipitates are easily adhered to the surface of the immersion roller 3, when the speed of the strip steel is reduced abnormally, the rotating speed of the immersion roller 3 is asynchronous, and the precipitates are easily abraded from the surface of the roller and adhered to the strip steel to cause the yellow spot defects. When the yellow spot defect is not controlled, the machine set needs to be stopped to empty the final desalted water of the water cooling tank, and the roller surface and the tank wall are cleaned manually, which is not beneficial to the continuous and stable production of the machine set.
A high-pressure water jet cutter is designed in a final water cooling tank of the patent CN201810140289.5 and is used for removing yellow spots on the surface of the strip steel. In use, the high-pressure water jet cutter sprays along the whole width direction of the strip steel, the pressure is dispersed, and the yellow spot defect with stronger adhesive force ratio is difficult to remove. In addition, it is often found in production that the part of the macula lutea defect is basically one, sometimes two parts come out, and the parts that come out are relatively fixed. In order to reduce the macular defects, it is generally necessary to increase the amount of water drained from the final water cooling bath 4 and reduce the accumulation of strip deposits on the roll surfaces of the immersion rolls 3. This measure is costly in terms of energy consumption and can reduce product competitiveness.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a device for removing the speckle-shaped foreign matter pressed in on the upper surface of the strip steel of the final water cooling tank.
In order to realize the purpose, the utility model discloses a technical scheme is:
a device for removing the defect of pressing yellow spot-shaped foreign matters on the upper surface of a final water-cooling tank strip steel is characterized in that the strip steel is turned by a turning roller before water cooling and then enters a final water-cooling tank downwards, cooling water is filled in the final water-cooling tank, the strip steel is immersed below the liquid level of the cooling water, is turned by an immersing roller and then runs upwards, is squeezed by a squeezing roller and then enters a strip steel dryer; a high-pressure water gun moving mechanism along the width direction of the strip steel is arranged on the cooling water liquid level in the final water cooling tank, a flat-nozzle-shaped high-pressure water gun is fixedly arranged on the high-pressure water gun moving mechanism, the high-pressure water gun moving mechanism is connected with a controller and is controlled by the controller to move, and a flat-nozzle-shaped spray seam of the flat-nozzle-shaped high-pressure water gun is arranged along the width direction of the strip steel and is obliquely and downwards directed to the upper surface of the strip steel; and a surface defect detection device for automatically detecting the macular foreign matter pressing-in defect on the upper surface of the strip steel is arranged at the strip steel position behind the strip steel dryer, and the surface defect detection device is connected with the controller through signals. The surface defect detection device continuously shoots passing strip steel through a high-speed camera, and identifies macular-shaped foreign bodies and the positions of the macular-shaped foreign bodies through software.
Furthermore, the flat-nozzle-shaped high-pressure water gun is positioned in such a way that the contact point of the sprayed high-pressure water and the strip steel is positioned on the liquid level of the final water cooling tank and below the wringing roller.
Furthermore, the clearing device comprises at least two sets of flat-nozzle-shaped high-pressure water guns along the width direction of the strip steel, and the flat-nozzle-shaped high-pressure water guns are arranged in a vertically staggered mode along the running direction of the strip steel; can carry out secondary high-pressure flushing to stubborn macula lutea-shaped foreign bodies and can deal with the appearance of multiple macula lutea.
Furthermore, the distance between the nozzle of the flat nozzle-shaped high-pressure water gun and the strip steel is 100 mm-300 mm. Too close distance results in scratch risk, the width range of high-pressure water blowing is narrow, and the distance is too far, so that the cleaning effect of high-pressure water is affected.
Furthermore, the water spraying pressure of the flat-nozzle-shaped high-pressure water gun is adjustable, and the adjustable range is 5-20 MPa.
Furthermore, the high-pressure water gun moving mechanism is a moving sliding table which is driven by a servo motor and accurately positioned.
Furthermore, the movable sliding table and the flat nozzle-shaped high-pressure water gun are arranged in the C-shaped protective cover and extend out of the final water cooling tank, the middle of the C-shaped protective cover is high, two sides of the C-shaped protective cover are low, and oil and water discharge ports are formed in the two sides of the C-shaped protective cover; prevent to remove slip table lubricating oil drippage to final water-cooling tank in.
The method for removing the macular foreign matter pressing defect of the removing device comprises the following steps: after the surface defect detection device detects the macular foreign bodies on the moving strip steel, a position signal is sent to the controller to control the moving sliding table to drive the flat nozzle-shaped high-pressure water gun to move to the position corresponding to the macular foreign bodies, and the macular foreign bodies are removed at fixed points by spraying high-pressure water; the water spraying pressure of the flat nozzle-shaped high-pressure water gun can be adjusted according to the strength and the thickness of the strip steel.
The utility model has the advantages that: the technology can realize that: 1) the intelligent image recognition finding and automatic fixed-point water spraying removal of the pressing defect of the speckled foreign matter on the upper surface of the strip steel are carried out; 2) the final desalted water consumption of the water cooling tank is reduced; 3) the production cost is reduced;
4) the workload of manual intervention is reduced, and the realization of automatic production is facilitated; 5) the shutdown operation time is reduced, and the production line operating rate is improved. The technical scheme is reliable, has very good practicability, is favorable for realizing continuous and stable production of the unit, reduces the shutdown operation and adjustment times of the unit, and has very good application prospect.
Drawings
FIG. 1 is a schematic diagram of a conventional immersive final water cooling system;
FIG. 2 is a schematic diagram of an embodiment of the present invention;
number designation in the figures: 1, strip steel; 2, water-cooling a front steering roller; 3 a dip roller; 4, a final water cooling tank; 5, a squeezing roller; 6, a strip steel dryer; 7, water-cooling a rear steering roller; 11, a water pumping port; 12 a coarse filter; 13 circulating water pump; 14 cooling water heat exchanger; 15 water inlet; 16 water replenishing pipes; 17 a waste water pit; 21 flat-mouth high-pressure water gun; 22 a high-pressure water hose; 23 moving the sliding table; a 24C-shaped shield; 25 a surface defect detecting device; 26 a controller; 27 high-pressure water pump, 28 high-pressure water gun water supply pipe, 29 desalination water tank, 30 high-pressure water supply pipe and 31 high-pressure water supply valve; a 32 pressure gauge; 33 a pressure relief tube; 34 a pressure relief valve; 35 a liquid level meter; 36 a desalination water tank drain pipe; 37 a desalination water tank drain valve; 38 a desalination tank overflow tube; 41 a pressure controller; 42 a liquid level controller; 43 a desalted water tank wastewater pit; 44 side manholes; 45 drain ditch.
Detailed Description
The following is to combine the embodiment to explain in further detail the utility model discloses, a defect clearing device is impressed to final water-cooling tank belted steel upper surface maculate-shaped foreign matter, as shown in fig. 2, belted steel 1 turns to back downstream through turn to roller 2 before the water-cooling, gets into final water-cooling tank 4 and carries out the water-cooling, turns to back upstream through immersing roller 3, before reaching wringing roller 5 and carrying out the wringing, has arranged two sets of flat nozzle form high-pressure squirt 21 for carry out the fixed point to the maculate-shaped foreign matter of belted steel 1 upper surface and clear away. The two sets of flat nozzle-shaped high-pressure water guns 21 are arranged in a vertically staggered mode along the running direction of the strip steel 1, the flat nozzle spray seams of the flat nozzle-shaped high-pressure water guns 21 are arranged along the width direction of the strip steel 1, meanwhile, the flat nozzle-shaped high-pressure water guns 21 are inclined to spray high-pressure water downwards to the surface of the strip steel 1, and the distance between the flat nozzle-shaped high-pressure water guns and the strip steel 1 is set to be 200 mm. Two sets of flat nozzle-shaped high-pressure water guns 21 are arranged in a vertically staggered mode along the running direction of the strip steel 1, secondary high-pressure washing can be carried out on stubborn yellow spot-shaped foreign matters, and the yellow spot-shaped foreign matters appearing at two positions when the probability of appearing is pressed in, so that high-pressure clearing can be carried out respectively.
The high-pressure water of the flat-nozzle-shaped high-pressure water gun 21 is pumped from the desalted water tank 29 by the high-pressure pump 27 through the water supply pipe 28, pressurized, and supplied through the high-pressure water hose 22. The high-pressure water hose 22 is arranged to realize that the flat-nozzle-shaped high-pressure water gun 21 can freely move along the width direction of the strip steel 1. In order to automatically detect the pressed-in position of the yellow spot-shaped foreign matter, a surface defect detection device 25, namely a surface defect detector, is arranged behind the water-cooled rear steering roller 7 behind the strip steel dryer 6 and is opposite to the upper surface of the strip steel 1 and used for automatically detecting the pressed-in defect of the yellow spot-shaped foreign matter and the position of the pressed-in defect. The controller 26 controls the moving sliding table 23 to move the two sets of flat nozzle-shaped high-pressure water guns 21 to the positions corresponding to the macular-shaped foreign matter pressing defects according to the position, provided by the surface defect detection device 25, of the macular-shaped foreign matter pressing defects, and the high-pressure pump 27 provides high-pressure water to wash the macular-shaped foreign matter on the surface of the strip steel 1 at high pressure. In this embodiment, the flat nozzle-shaped high-pressure water gun 21 is fixed on the moving slide table 23 to realize position adjustment along with the moving slide table 23. For accurate positioning, the present embodiment uses a servo motor to drive the moving sliding table 23, so as to realize accurate positioning of the flat nozzle-shaped high-pressure water gun 21. In order to prevent the lubricating oil of the movable sliding table 23 from dropping into the final water cooling tank 4, the whole movable sliding table 23 is arranged in the C-shaped protective cover 24 and extends out of the final water cooling tank 4, the middle of the C-shaped protective cover 24 is high, two sides of the C-shaped protective cover are low, and oil discharge and water discharge openings are formed in the two sides of the C-shaped protective cover. In addition, in order to improve the flushing effect of the flat nozzle-shaped high-pressure water gun 21 and adjust the high-pressure water of the flat nozzle-shaped high-pressure water gun 21 according to the strength and thickness specification of the strip steel 1, a pressure gauge 32 is arranged on a high-pressure water gun water supply pipe 28 behind the high-pressure pump 27 for detecting the pressure of the flat nozzle-shaped high-pressure water gun 21, a pressure relief pipe 33 is arranged on the high-pressure water supply pipe 28 behind the high-pressure pump 27 and in front of the pressure gauge 32, an electromagnetic control pressure relief valve 34 is arranged on the pressure relief pipe 33, a pressure controller 41 is arranged, the opening degree of the pressure relief valve 34 is controlled according to the pressure difference between the set target pressure and the pressure measured by the actual pressure gauge 32, and the pressure adjustment of the high-pressure water of the flat nozzle-shaped high-pressure water gun 21 is realized. In this embodiment, the high-pressure water pressure of the flat-mouth high-pressure water gun 21 can be adjusted within a range of 5 to 20 MPa. The desalination water tank 29 is also internally provided with a liquid level meter 35 for measuring the liquid level in the desalination water tank 29 and four liquid level alarm gears of low liquid level, high liquid level and high liquid level. Meanwhile, a liquid level controller 42 is provided, and the opening degree of the high-pressure water replenishing valve 31 on the high-pressure water replenishing pipe 30 is controlled according to the liquid level measurement result of the liquid level meter 35 and the target liquid level difference, so that the automatic control of the liquid level in the desalination water tank 29 is realized. The desalination water tank 29 is further provided with a desalination water tank overflow pipe 38, the pipe diameter of which is larger than the pipe diameter of the high-pressure water replenishing pipe 30, and the pipe orifice height of which is higher than the high-pressure liquid level, when excessive water replenishing occurs, desalted water automatically overflows to the desalination water tank wastewater pit 43 along the desalination water tank overflow pipe 38. In this embodiment, the desalination water tank 29 is further provided with a desalination water tank drain pipe 36 at the bottom, the desalination water tank drain pipe 36 is provided with a manual drain valve 37, the manual drain valve 37 can be opened during regular maintenance to drain the desalted water in the desalination water tank 29, in addition, the bottom of the desalination water tank 29 is set to be an inclined tank bottom, the side manhole 44 is arranged at the lowest position of the tank bottom, the side manhole 44 is opened during maintenance, the residual desalted water in the desalination water tank 29 can be completely and automatically drained, and the drained desalted water flows into the drainage ditch 45 and can automatically flow into the desalination water tank waste water pit 43.
The above description is only for the purpose of illustrating the technical solutions of the present invention, and the simple modification or equivalent replacement of the technical solutions of the present invention by those of ordinary skill in the art does not depart from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. A device for removing the defect of pressing yellow spot-shaped foreign matters on the upper surface of a final water-cooling tank strip steel is characterized in that the strip steel is turned by a turning roller before water cooling and then enters a final water-cooling tank downwards, cooling water is filled in the final water-cooling tank, the strip steel is immersed below the liquid level of the cooling water, is turned by an immersing roller and then runs upwards, is squeezed by a squeezing roller and then enters a strip steel dryer; the method is characterized in that: a high-pressure water gun moving mechanism along the width direction of the strip steel is arranged on the cooling water liquid level in the final water cooling tank, a flat-nozzle-shaped high-pressure water gun is fixedly arranged on the high-pressure water gun moving mechanism, the high-pressure water gun moving mechanism is connected with a controller and is controlled by the controller to move, and a flat-nozzle-shaped spray seam of the flat-nozzle-shaped high-pressure water gun is arranged along the width direction of the strip steel and is obliquely and downwards directed to the upper surface of the strip steel; and a surface defect detection device for automatically detecting the macular foreign matter pressing-in defect on the upper surface of the strip steel is arranged at the strip steel position behind the strip steel dryer, and the surface defect detection device is connected with the controller through signals.
2. The purging device as defined in claim 1, wherein: the flat nozzle-shaped high-pressure water gun is positioned in such a way that the contact point of the sprayed high-pressure water and the strip steel is positioned on the liquid level of the final water cooling tank and below the wringing roller.
3. The purging device as claimed in claim 2, wherein: the clearing device comprises at least two sets of flat nozzle-shaped high-pressure water guns along the width direction of the strip steel, and the flat nozzle-shaped high-pressure water guns are arranged in a vertically staggered mode along the running direction of the strip steel.
4. A cleaning device according to claim 3, wherein: the distance between the nozzle of the flat nozzle-shaped high-pressure water gun and the strip steel is 100 mm-300 mm.
5. The purging device as claimed in claim 4, wherein: the water spraying pressure of the flat-nozzle-shaped high-pressure water gun is adjustable, and the adjustable range is 5-20 MPa.
6. The purging device as claimed in claim 5, wherein: the high-pressure water gun moving mechanism is a moving sliding table which is driven by a servo motor and accurately positioned.
7. The purging device as claimed in claim 6, wherein: remove slip table and flat mouth form high-pressure squirt setting in C type safety cover to outside extending to final water-cooling tank, high both sides are low in the middle of the C type safety cover, all are equipped with the oil extraction outlet in both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121026754.6U CN215198521U (en) | 2021-05-14 | 2021-05-14 | Device for removing yellow spot-shaped foreign matter pressing defect on upper surface of final water-cooling tank strip steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121026754.6U CN215198521U (en) | 2021-05-14 | 2021-05-14 | Device for removing yellow spot-shaped foreign matter pressing defect on upper surface of final water-cooling tank strip steel |
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| Publication Number | Publication Date |
|---|---|
| CN215198521U true CN215198521U (en) | 2021-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121026754.6U Active CN215198521U (en) | 2021-05-14 | 2021-05-14 | Device for removing yellow spot-shaped foreign matter pressing defect on upper surface of final water-cooling tank strip steel |
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| Country | Link |
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| CN (1) | CN215198521U (en) |
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2021
- 2021-05-14 CN CN202121026754.6U patent/CN215198521U/en active Active
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