Reverse blowing protective cover
By designing a backflush protection cover, using anti-tilting plates and electro-hydraulic actuators for adjustment, and combining it with a PLC control and monitoring system, the problems of steel head floating and backflush water splashing were solved, achieving stable production and reduced labor intensity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-03-17
AI Technical Summary
During the steel rolling process, steel heads are prone to floating up and getting caught on the backflushing pipe, causing scrap steel and production to stop. In addition, the backflushing water splashes out and requires personnel to clean it up, increasing the labor intensity.
Design a backflush protection cover, including a baffle plate, an anti-tilting plate, and support legs. The anti-tilting plate is tilted to protect the backflush pipe. The angle is adjusted by an electro-hydraulic actuator and a PLC controller. The monitoring camera and display screen monitor and adjust in real time. The vent plate reduces the weight of the anti-tilting plate.
It effectively prevents steel heads from getting caught on the backflush pipe, reduces scrap steel, avoids water splashing outside, reduces the cleaning burden on personnel, and ensures production stability.
Smart Images
Figure CN223996937U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of steel metallurgy, specifically relates to a reverse blowing protective cover for preventing the collision of a steel coil with a reverse blowing pipe on a laminar cooling roller. BACKGROUND
[0002] In the steel rolling production process, the speed of the steel head is fast after it leaves the last stand of the rolling mill and enters the laminar cooling area. Because of the limit thin gauge produced, the steel head is light and prone to floating. The reverse blowing device needs to blow off the cooling water on the surface of the strip before it enters the coiler, and the reverse blowing water may splash out, requiring personnel to clean frequently. If the steel head is unstable, it may float and get stuck on the reverse blowing pipe, resulting in scrap steel, causing time errors and delaying production. SUMMARY
[0003] The utility model aims at overcoming the defects of the prior art and providing a reverse blowing protective cover that can prevent reverse blowing water from splashing out, prevent the steel head from bouncing and getting stuck on the reverse blowing pipe, reduce scrap steel, ensure stable production operation, eliminate the need for personnel to clean water stains on site, and reduce the labor intensity of personnel.
[0004] To achieve the above purpose, the utility model provides the following technical scheme:
[0005] A reverse blowing protective cover includes a water baffle, a support leg, an anti-warping plate, and a water baffle side plate. The support leg is provided with four, which is arranged on the lower side of the water baffle and plays a supporting and positioning role. One side of the water baffle is the strip inlet, and the other side is the strip outlet. The anti-warping plate is arranged on one side of the strip inlet of the water baffle. The water baffle is inclined downward and inward, with an inclination angle of 10-30°. The water baffle side plate is arranged on the front and rear sides of the water baffle.
[0006] Preferably, one end of the anti-warping plate is hinged to one side of the strip inlet of the water baffle, and the other end of the anti-warping plate is hinged to the water baffle through an electro-hydraulic push rod. The length of the telescopic electro-hydraulic push rod is used to adjust the inclination angle of the anti-warping plate.
[0007] Preferably, the reverse blowing protective cover further includes a monitoring camera, a monitoring display screen connected to the monitoring camera, and a PLC controller. The monitoring display screen is arranged in a monitoring room. The monitoring camera transmits the monitoring picture to the monitoring display screen. The PLC controller is connected to the control end of the electro-hydraulic push rod. An input instruction area is arranged on the PLC controller. The inclination angle of the anti-warping plate can be adjusted according to the flow condition of the strip in the monitoring picture.
[0008] The above-mentioned PLC controller and the connection of the PLC controller and the control end of the electro-hydraulic push rod belong to the prior art
[0009] Preferably, the anti-warping plate is provided with a gas-permeable plate, only allowing gas to pass through, when the reverse blowing protective cover is placed, the jet head of the reverse blowing pipe blows gas to the strip steel through the gas-permeable plate, the mass of the anti-warping plate is reduced, the production quality of the strip steel is not affected, and the reverse blowing pipe can be further protected, and the strip steel is prevented from colliding with the jet head.
[0010] In use, the reverse blowing protective cover is placed above the laminar cooling roller way, and the anti-warping plate is placed below the reverse blowing pipe, the jet head of the reverse blowing pipe is inclined to the side of the strip steel inlet and downwardly inclined, and when the strip steel enters the laminar cooling roller way from the strip steel inlet, if the steel head bounces up, the steel head can enter the waterproof cover and below the reverse blowing pipe along the anti-warping plate.
[0011] The reverse blowing pipe blows water on the strip steel in reverse, due to the existence of a certain pressure in the reverse blowing, the water on the strip steel is splashed out of the guard plate of the laminar cooling roller way after being blown by the gas blowing, the reverse blowing waterproof cover can splash the reverse blowing water on the reverse blowing waterproof cover, and the water flows to the lower side along the reverse blowing waterproof cover, so that the water is prevented from splashing outside.
[0012] The utility model has the advantages that:
[0013] The utility model discloses a reverse blowing protective cover is arranged on the reverse blowing pipe, the anti-warping plate is inclined and arranged at the side of the water baffle strip steel inlet, and is inclined downwardly and inwardly, has the protection effect to the reverse blowing pipe, prevents the steel head from bouncing up and colliding with the reverse blowing pipe, and further guarantees the product quality and guarantees the stable production operation.
[0014] The utility model discloses a reverse blowing protective cover is arranged on the reverse blowing pipe, the reverse blowing waterproof cover can splash the reverse blowing water on the reverse blowing waterproof cover when the reverse blowing pipe blows water on the strip steel in reverse, the water flows to the lower side along the reverse blowing waterproof cover, so that the water is prevented from splashing outside, personnel is not needed to clean the water stain on the spot, and the labor intensity of personnel is reduced.
[0015] By adopting the above scheme, the utility model can prevent the steel head from bouncing up and hanging on the reverse blowing pipe, reduce the scrap steel, guarantee the stable production operation, personnel is not needed to clean the water stain on the spot, and the labor intensity of personnel is reduced. DRAWINGS
[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without the creative labor.
[0017] Figure 1 It is the overall structure schematic diagram of the first embodiment.
[0018] Figure 2 It is Figure 1 the sectional view at A-A in the first embodiment.
[0019] Figure 3 This is a schematic diagram of the overall structure of the second embodiment.
[0020] Figure 4 yes Figure 3 Sectional view at point BB.
[0021] Figure 5 This is a schematic diagram of the overall structure of the third embodiment.
[0022] Figure 6 This is a schematic diagram of the overall structure of the fourth embodiment.
[0023] In the diagram, 1-water baffle, 2-support leg, 3-anti-tilting plate, 4-backflush pipe, 5-steel strip inlet, 6-steel strip outlet, 7-water baffle side plate, 41-jet nozzle, 31-ventilation plate. Detailed Implementation
[0024] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0025] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0026] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0028] First embodiment:
[0029] like Figure 1 and2 As shown, a backflush protective cover includes a baffle plate 1, support legs 2, anti-tilting plate 3, and water-blocking side plates 7. The support legs 2 are provided in four places and are located on the lower side of the baffle plate 1 to provide support and positioning. One side of the baffle plate 1 is a strip steel inlet 5 and the other side is a strip steel outlet 6. The anti-tilting plate 3 is located on the side of the strip steel inlet 5 of the baffle plate 1. The baffle plate 1 is inclined downward and inward at an angle of 10~30°. The water-blocking side plates 7 are located on the front and rear sides of the baffle plate 1.
[0030] When in use, place this reverse blowing protective cover above the laminar flow cooling roller, and place the anti-tilting plate 3 below the reverse blowing pipe 4. The jet nozzle 41 of the reverse blowing pipe 4 is tilted towards the strip inlet 5 and downward. When the strip enters the laminar flow cooling roller from the strip inlet 5, if the steel head jumps up, it will enter the waterproof cover and below the reverse blowing pipe 4 along the anti-tilting plate 3.
[0031] The reverse blowing pipe 4 reverse blows the water on the strip. Due to the pressure of the reverse blowing, the water on the strip will splash out of the cold roller conveyor after being blown by the air. The reverse blowing waterproof cover will make the reverse blowing water splash on the reverse blowing waterproof cover and the water will flow down along the reverse blowing waterproof cover to prevent the water from splashing outside.
[0032] Second embodiment:
[0033] like Figures 3-4 As shown, a backflow protective cover includes a baffle plate 1, support legs 2, anti-tilting plate 3, and water-blocking side plates 7. The support legs 2 are provided in four places and are located on the lower side of the baffle plate 1 to provide support and positioning. One side of the baffle plate 1 is a strip steel inlet 5 and the other side is a strip steel outlet 6. The anti-tilting plate 3 is located on the side of the strip steel inlet 5 of the baffle plate 1. The baffle plate 1 is tilted downward and inward at an angle of 10~30°. The water-blocking side plates 7 are located on the front and rear sides of the baffle plate 1.
[0034] One end of the anti-tilting plate 3 is hinged to one side of the steel inlet 5 of the baffle plate 1, and the other end of the anti-tilting plate 3 is hinged to the baffle plate 1 through the electro-hydraulic push rod 8. The tilt angle of the anti-tilting plate 3 can be adjusted by extending and retracting the length of the electro-hydraulic push rod 8.
[0035] When in use, place this reverse blowing protective cover above the laminar flow cooling roller, and place the anti-tilting plate 3 below the reverse blowing pipe 4. The jet nozzle 41 of the reverse blowing pipe 4 is tilted towards the strip inlet 5 and downward. When the strip enters the laminar flow cooling roller from the strip inlet 5, if the steel head jumps up, it will enter the waterproof cover and below the reverse blowing pipe 4 along the anti-tilting plate 3.
[0036] During use, the length of the electro-hydraulic actuator 8 can be adjusted to adjust the tilt angle of the anti-tilting plate 3 to achieve a better protective effect.
[0037] The reverse blowing pipe 4 reverse blows the water on the strip. Due to the pressure of the reverse blowing, the water on the strip will splash out of the cold roller conveyor after being blown by the air. The reverse blowing waterproof cover will make the reverse blowing water splash on the reverse blowing waterproof cover and the water will flow down along the reverse blowing waterproof cover to prevent the water from splashing outside.
[0038] Third embodiment:
[0039] like Figure 5 As shown, a backflow protective cover includes a baffle plate 1, support legs 2, anti-tilting plate 3, and water-blocking side plates 7. The support legs 2 are provided in four places and are located on the lower side of the baffle plate 1 to provide support and positioning. One side of the baffle plate 1 is a strip steel inlet 5 and the other side is a strip steel outlet 6. The anti-tilting plate 3 is located on the side of the strip steel inlet 5 of the baffle plate 1. The baffle plate 1 is tilted downward and inward at an angle of 10~30°. The water-blocking side plates 7 are located on the front and rear sides of the baffle plate 1.
[0040] One end of the anti-tilting plate 3 is hinged to one side of the steel inlet 5 of the baffle plate 1, and the other end of the anti-tilting plate 3 is hinged to the baffle plate 1 through the electro-hydraulic push rod 8. The tilt angle of the anti-tilting plate 3 can be adjusted by extending and retracting the length of the electro-hydraulic push rod 8.
[0041] When in use, place this reverse blowing protective cover above the laminar flow cooling roller, and place the anti-tilting plate 3 below the reverse blowing pipe 4. The jet nozzle 41 of the reverse blowing pipe 4 is tilted towards the strip inlet 5 and downward. When the strip enters the laminar flow cooling roller from the strip inlet 5, if the steel head jumps up, it will enter the waterproof cover and below the reverse blowing pipe 4 along the anti-tilting plate 3.
[0042] The reverse blowing pipe 4 reverse blows the water on the strip. Due to the pressure of the reverse blowing, the water on the strip will splash out of the cold roller conveyor after being blown by the air. The reverse blowing waterproof cover will make the reverse blowing water splash on the reverse blowing waterproof cover and the water will flow down along the reverse blowing waterproof cover to prevent the water from splashing outside.
[0043] The backflush protective cover also includes a monitoring camera 9, a monitoring display screen connected to the monitoring camera, and a PLC controller. The monitoring display screen is located in the monitoring room. The monitoring camera 9 transmits the monitoring images to the monitoring display screen. The PLC controller is connected to the control end of the electro-hydraulic actuator 8. The PLC controller is equipped with an input command area, which can adjust the tilt angle of the anti-tilting plate 3 according to the flow of the strip steel in the monitoring image.
[0044] Fourth embodiment:
[0045] like Figure 6As shown, a backflow protective cover includes a baffle plate 1, support legs 2, anti-tilting plate 3, and water-blocking side plates 7. The support legs 2 are provided in four places and are located on the lower side of the baffle plate 1 to provide support and positioning. One side of the baffle plate 1 is a strip steel inlet 5 and the other side is a strip steel outlet 6. The anti-tilting plate 3 is located on the side of the strip steel inlet 5 of the baffle plate 1. The baffle plate 1 is tilted downward and inward at an angle of 10~30°. The water-blocking side plates 7 are located on the front and rear sides of the baffle plate 1.
[0046] like Figure 6 As shown, the anti-tilting plate 3 is provided with a vent plate 31. When the back-blowing protective cover is placed, the jet nozzle 41 of the back-blowing pipe 4 sprays air onto the strip through the vent plate 31, reducing the weight of the anti-tilting plate. While not affecting the production quality of the strip, it can further protect the back-blowing pipe 4 and prevent the strip from colliding with the jet nozzle 41.
[0047] When in use, place this reverse blowing protective cover above the laminar flow cooling roller, and place the anti-tilting plate 3 below the reverse blowing pipe 4. The jet nozzle 41 of the reverse blowing pipe 4 is tilted towards the strip inlet 5 and downward. When the strip enters the laminar flow cooling roller from the strip inlet 5, if the steel head jumps up, it will enter the waterproof cover and below the reverse blowing pipe 4 along the anti-tilting plate 3.
[0048] The back-blowing pipe 4 back-blowing water on the strip through the air vent plate 31. Due to the pressure of the back-blowing, the water on the strip will splash out of the cold roller guide plate after being blown by the air. The back-blowing waterproof cover will make the back-blowing water splash on the back-blowing waterproof cover, and the water will flow down along the back-blowing waterproof cover to prevent the water from splashing outside.
[0049] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A reverse blast shield, characterized by: The water baffle, the supporting leg, the anti-warping plate and the water baffle side plate are provided, four supporting legs are arranged on the lower side of the water baffle, one side of the water baffle is a strip steel inlet, the other side is a strip steel outlet, the anti-warping plate is arranged on one side of the strip steel inlet of the water baffle, the water baffle is inclined downward and inward, and the inclination angle is 10-30°; the water baffle side plate is arranged on the front and rear sides of the water baffle.
2. A reverse blast shield according to claim 1, wherein: One end of the anti-warping plate is hinged to one side of the strip steel inlet of the water baffle, and the other end of the anti-warping plate is hinged to the water baffle through the electro-hydraulic push rod.
3. A reverse blast shield according to claim 1, wherein: The reverse blowing protective cover further comprises a monitoring camera, a monitoring display screen connected with the monitoring camera and a PLC controller, the monitoring display screen is arranged in a monitoring room, the PLC controller is connected with the control end of the electro-hydraulic push rod, and an input instruction area is arranged on the PLC controller.
4. A reverse blast shield according to claim 1, wherein: The anti-warping plate is provided with a breathable plate.