Plate strip wringing device
By setting air guide plates and compressed air nozzles on the squeeze rollers to form a triangular zone and spray compressed air, the problem of liquid cross-flow in strip steel production is solved, and the squeezing effect and cleanliness are improved.
Patent Information
- Application Number
- CN202422548223.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-10-21
AI Technical Summary
Existing squeeze rollers are prone to liquid leakage from the edge of the roll gap to the middle of the roll gap during strip steel production, which affects the squeezing effect.
The system employs an air guiding unit and a compressed air blowing unit. A triangular zone is formed between the upper air guiding plate and the upper extrusion roller. Compressed air is blown into the roller gap using compressed air nozzles to create a positive pressure environment to suppress liquid cross-flow. The airflow is guided by the air guiding plate, and the lifting drive mechanism is combined to improve the extrusion quality.
It effectively suppresses the flow of liquid from the edge roll gap to the middle roll gap, improves the extrusion quality and the on-site working environment, and improves the cleanliness of the strip surface.
Smart Images
Figure CN223596424U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to strip production technical field, concretely relates to a plate strip wringing device. BACKGROUND
[0002] Wringing roller is widely used in strip production, can be used in processes such as after strip rolling, after strip pickling and after strip cleaning, to remove rolling oil on the surface of strip, pickling solution on the surface of strip and cleaning solution on the surface of strip. Wringing roller contacts and extrudes the surface of strip through wringing upper roller and wringing lower roller respectively to remove residual liquid on the surface of strip. However, in actual production, liquid on the side of roll gap is prone to flow to the middle of roll gap, affecting wringing effect. SUMMARY
[0003] The utility model relates to a plate strip wringing device, at least can solve partial defects of prior art.
[0004] The utility model relates to a plate strip wringing device, including wringing upper roller and wringing lower roller, wringing upper roller and / or wringing lower roller is equipped with lifting drive mechanism, still include gas guide unit, the gas guide unit includes upper gas guide plate, the upper gas guide plate is arranged in wringing roller export side and is located the above plate strip running channel, the inner side board surface of upper gas guide plate is close to wringing upper roller and forms first slit between the two, and the bottom end of upper gas guide plate is close to plate strip running channel and forms second slit between the two.
[0005] As one of the embodiments, the plate strip wringing device further includes an upper compressed air blowing unit, the upper compressed air blowing unit includes a plurality of upper compressed air nozzles arranged on the outlet side of the wringing roller and located above the plate strip running channel, and the blowing direction of the upper compressed air nozzles is towards the roll gap.
[0006] As one of the embodiments, each of the upper compressed air nozzles includes one or more intermediate nozzles and a plurality of edge nozzles, the projection of the axis of the intermediate nozzles on the horizontal plane is parallel to the plate strip running direction, and the projection of the axis of the edge nozzles on the horizontal plane has an included angle greater than 0° and less than 90° with respect to the plate strip running direction.
[0007] As one of the embodiments, each of the upper compressed air nozzles is arranged on the upper gas guide plate.
[0008] As one of the embodiments, the upper gas guide plate is provided as a hollow plate with a certain thickness, and the upper compressed air nozzles are at least partially arranged in the hollow cavity of the upper gas guide plate.
[0009] As one of the embodiments, the upper gas guide plate is fixedly installed on the roll seat of the wringing upper roller.
[0010] As one of the embodiments, the upper air guide plate is a straight plate, and the plate surface thereof is preferably parallel to the vertical direction; or, the inner side plate surface of the upper air guide plate is designed as an arc-shaped plate surface, and the curvature of the arc-shaped plate surface matches the squeeze-up roll.
[0011] As one of the embodiments, the air guide unit further comprises a lower air guide plate arranged at the outlet side of the squeeze roll and located below the plate strip running channel, the inner side plate surface of the lower air guide plate is close to the squeeze-down roll and forms a third gap therebetween, and the bottom end of the lower air guide plate is close to the plate strip running channel and forms a fourth gap therebetween.
[0012] As one of the embodiments, the plate strip squeeze device further comprises a lower compressed air blowing unit, and the lower compressed air blowing unit comprises a plurality of lower compressed air nozzles arranged at the outlet side of the squeeze roll and located below the plate strip running channel, and the blowing direction of the lower compressed air nozzles is towards the roll gap.
[0013] As one of the embodiments, each of the lower compressed air nozzles is arranged on the lower air guide plate.
[0014] The plate strip squeeze device has at least the following beneficial effects:
[0015] In the plate strip squeeze device, the upper air guide plate, the squeeze-up roll and the plate strip can enclose a triangular area, the upper air guide plate and the squeeze-up roll can guide the airflow at the outlet of the squeeze roll, the triangular area is difficult to escape due to the constraints of the first gap and the second gap, the positive pressure environment in the triangular area is ensured, the liquid flowing from the side roll gap to the middle roll gap is inhibited, and thus the squeeze quality is effectively improved; in addition, the upper air guide plate can prevent the liquid from being thrown to the outlet side of the squeeze-up roll in the high-speed state, and thus the working environment is improved. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.
[0017] Figure 1 The structure schematic diagram of the plate strip squeeze device provided by the embodiments of the present application is shown in the figure.
[0018] Figure 2 The arrangement structure schematic diagram of the compressed air nozzles on the air guide plate is shown in the figure. DETAILED DESCRIPTION
[0019] The technical solutions of the embodiments of the present application will be clearly and completely described below. Apparently, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.
[0020] As Figure 1 And Figure 2 The present application provides a plate strip squeezing device, which comprises a squeezing upper roller 11 and a squeezing lower roller 12, the squeezing upper roller 11 and / or the squeezing lower roller 12 is provided with a lifting driving mechanism, and further comprises a gas guiding unit, the gas guiding unit comprises an upper gas guiding plate 31, the upper gas guiding plate 31 is arranged on the outlet side of the squeezing roller and above the plate strip running channel, the inner side plate surface of the upper gas guiding plate 31 is close to the squeezing upper roller 11 and a first gap is formed between the two, and the bottom end of the upper gas guiding plate 31 is close to the plate strip running channel and a second gap is formed between the two.
[0021] Preferably, the squeezing upper roller 11 and the squeezing lower roller 12 are both idler rollers, and the plate strip 5 drives the squeezing upper roller 11 and the squeezing lower roller 12 to rotate when the plate strip 5 runs, so as to squeeze off most of the residual liquid 50 on the surface of the plate strip.
[0022] Preferably, the squeezing upper roller 11 and the squeezing lower roller 12 are both provided with a lifting driving mechanism, so that the squeezing upper roller 11 and the squeezing lower roller 12 can press the surface of the plate strip and improve the squeezing effect.
[0023] The plate strip 5 can be a plate / band material such as a steel strip.
[0024] Preferably, the upper gas guiding plate 31 is fixedly installed on the roller seat of the squeezing upper roller 11 and can move with the squeezing upper roller 11, which not only facilitates the installation of the upper gas guiding plate 31, but also ensures the airflow guiding effect.
[0025] The upper gas guiding plate 31 can be a straight plate, and the plate surface thereof is preferably parallel to the vertical direction. Figure 1 The inner side plate surface of the upper gas guiding plate 31 is close to the squeezing upper roller 11 and a first gap is formed between the two, and the bottom end of the upper gas guiding plate 31 is close to the plate strip running channel and a second gap is formed between the two. A triangular area can be enclosed by the upper gas guiding plate 31, the squeezing upper roller 11 and the plate strip 5. Due to the constraints of the first gap and the second gap, the difficulty of air escaping in the triangular area is increased, and the positive pressure environment in the triangular area is ensured, so that the liquid flowing from the side of the edge roller gap to the side of the middle roller gap can be inhibited.
[0026] Further preferably, as Figure 1 And Figure 2The plate strip wringing device further comprises an upper compressed air blowing unit, which comprises a plurality of upper compressed air nozzles 41 arranged on the outlet side of the wringing roller and above the plate strip running channel, and the blowing direction of the upper compressed air nozzles 41 is towards the roller gap. The upper compressed air blowing unit is used to blow compressed air at the outlet of the wringing roller, so that the air pressure on the side of the intermediate roller gap is greater than the air pressure on the side of the edge roller gap.
[0027] When the upper compressed air blowing unit is provided, the positive pressure environment in the triangular area can be ensured by blowing compressed air to the roller gap side by the upper compressed air blowing unit, and on this basis, the inner side plate surface of the upper air guide plate 31 can be designed as an arc-shaped plate surface, and the curvature of the arc-shaped plate surface is preferably matched with the wringing upper roller 11, so that the air flow on the outlet side of the wringing roller can be better guided, and the stable pressure environment in the triangular area can be ensured.
[0028] Optionally, the upper compressed air nozzles 41 are arranged on the upper air guide plate 31, and the supports and other components required for arranging the upper compressed air nozzles 41 can be omitted; wherein the upper compressed air nozzles 41 can be arranged on the inner side plate surface of the upper air guide plate 31, or the upper air guide plate 31 is provided as a hollow plate with a certain thickness, the upper compressed air nozzles 41 are arranged in the hollow cavity of the upper air guide plate 31 or pass through the inner side plate surface of the upper air guide plate 31 from the hollow cavity of the upper air guide plate 31 and blow air to the roller gap side, so that the arrangement of the upper compressed air nozzles 41 can be facilitated, and in particular, the gas supply pipeline and the like can be arranged in the hollow cavity of the upper air guide plate 31.
[0029] Preferably, the plurality of upper compressed air nozzles 41 are arranged in sequence along the width direction of the plate strip running channel, including one or more intermediate nozzles 411 and a plurality of edge nozzles 412, and optionally, the intermediate nozzles 411 directly spray towards the intermediate roller gap (that is, the projection of the axis of the intermediate nozzles 411 on the horizontal plane is parallel to the plate strip running direction), and the edge nozzles 412 blow towards the edge roller gap and the blowing direction is inclined towards the outside of the plate strip running channel, that is, the projection of the axis of the edge nozzles 412 on the horizontal plane has an angle (greater than 0° and less than 90°) with respect to the plate strip running direction, so that not only the liquid channeling caused by the air flow on the side of the edge roller gap can be prevented, but also the liquid on the surface of the plate strip can be driven outward, and the cleanliness of the surface of the plate strip can be improved.
[0030] In one of the embodiments, as shown in Figure 1 and Figure 2The air guiding unit further comprises a lower air guiding plate 32 arranged at the outlet side of the squeezing roller and located below the running channel of the strip, the inner side of the lower air guiding plate 32 is close to the squeezing lower roller 12 and a third gap is formed between the lower air guiding plate 32 and the squeezing lower roller 12, and the bottom end of the lower air guiding plate 32 is close to the running channel of the strip and a fourth gap is formed between the lower air guiding plate 32 and the running channel of the strip. The lower air guiding plate 32 is used for guiding the air flow at the outlet side of the squeezing roller to improve the liquid flow from the side roller gap to the middle roller gap. Based on the design, the cleaning effect of the residual liquid 50 on the surface of the strip can be further improved.
[0031] Preferably, the lower air guiding plate 32 is fixedly installed on the roller seat of the squeezing lower roller 12 and moves with the squeezing lower roller 12, which not only facilitates the installation of the lower air guiding plate 32, but also ensures the air flow guiding effect.
[0032] The arrangement structure of the lower air guiding plate 32 can refer to that of the upper air guiding plate 31, which is not described herein.
[0033] Further preferably, as Figure 1 and Figure 2 The strip squeezing device further comprises a lower compressed air blowing unit, the lower compressed air blowing unit comprises a plurality of lower compressed air nozzles 42 arranged at the outlet side of the squeezing roller and located below the running channel of the strip, and is used for blowing compressed air at the outlet side of the squeezing roller to make the air pressure on the middle roller gap larger than that on the side roller gap, so as to prevent the liquid flow caused by the air flow on the side roller gap.
[0034] The arrangement structure of the lower compressed air nozzles 42 can refer to that of the upper compressed air nozzles 41, which is not described herein.
[0035] Based on the upper compressed air blowing unit and / or the lower compressed air blowing unit, the effects of preventing the liquid flow caused by the air flow on the side roller gap can be achieved, and in particular, due to the increase of the air pressure at the outlet side of the roller gap, the liquid on the surface of the strip can be better prevented from flowing through the roller gap of the squeezing roller, so as to improve the squeezing effect.
[0036] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A strip dewatering device comprising an upper dewatering roll and a lower dewatering roll, the upper dewatering roll and / or the lower dewatering roll being provided with a lifting drive mechanism, characterized in that: The air guide unit further comprises a lower air guide plate arranged on the outlet side of the squeeze roll and located below the running channel of the strip, an inner side surface of the lower air guide plate is close to the lower squeeze roll and a third gap is formed between the two, and a bottom end of the lower air guide plate is close to the running channel of the strip and a fourth gap is formed between the two.
2. The belt dewatering device of claim 1, wherein: The upper compressed air blowing unit comprises a plurality of upper compressed air nozzles arranged on the outlet side of the squeeze roll and located above the running channel of the strip, and blowing directions of the upper compressed air nozzles are towards the roll gap.
3. The belt dewatering device of claim 2, wherein: In each of the upper compressed air nozzles, one or more intermediate nozzles and a plurality of edge nozzles are included, an axis of the intermediate nozzles is parallel to the running direction of the strip in a projection on a horizontal plane, and an axis of the edge nozzles has an included angle greater than 0° and less than 90° with respect to the running direction of the strip in a projection on a horizontal plane.
4. The belt dewatering device of claim 2 wherein: Each of the upper compressed air nozzles is arranged on the upper air guide plate.
5. The belt dewatering device of claim 4, wherein: The upper air guide plate is designed as a hollow plate with a certain thickness, and the upper compressed air nozzles are at least partially arranged in the hollow cavity of the upper air guide plate.
6. The belt dewatering device of claim 1 wherein: The upper air guide plate is fixedly installed on a roll seat of the upper squeeze roll.
7. The belt dewatering device of claim 1 wherein: The upper air guide plate is a straight plate with a plate surface parallel to the vertical direction, or an inner side surface of the upper air guide plate is designed as an arc-shaped plate surface with a curvature matched with the upper squeeze roll.
8. A belt dewatering device according to any one of claims 1 to 7, characterized in that: The air guide unit further comprises a lower air guide plate arranged on the outlet side of the squeeze roll and located below the running channel of the strip, an inner side surface of the lower air guide plate is close to the lower squeeze roll and a third gap is formed between the two, and a bottom end of the lower air guide plate is close to the running channel of the strip and a fourth gap is formed between the two.
9. The belt dewatering device of claim 8, wherein: The lower compressed air blowing unit comprises a plurality of lower compressed air nozzles arranged on the outlet side of the squeeze roll and located below the running channel of the strip, and blowing directions of the lower compressed air nozzles are towards the roll gap.
10. The belt dewatering device of claim 9, wherein: Each of the lower compressed air nozzles is arranged on the lower air guide plate.