CN211888434U - Foreign matter removing device for pinch roll of hot rolling coiler - Google Patents

Abstract

The utility model relates to a hot rolling coiling machine pinch roll field discloses a hot rolling coiling machine pinch roll foreign matter clearing device, and the device includes the deflector and installs the collector pipe in the deflector top, hot rolling coiling machine pinch roll entrance is equipped with the rolling water flat line that transports belted steel, and the deflector is located rolling water flat line's top, and is close to the entry of last pinch roll and lower pinch roll, and a plurality of nozzles that set up side by side are installed to the bottom of collector pipe, the nozzle passes the deflector and sets up towards the rolling water flat line direction that is close hot rolling coiling machine pinch roll entry, can carry out the foreign matter clearance to the rolling water flat line upper surface of transporting belted steel through above-mentioned structure, and further can also treat the belted steel that gets into hot rolling coiling machine pinch roll and cool down.

Description

Foreign matter removing device for pinch roll of hot rolling coiler

Technical Field

The utility model relates to a hot rolling coiling machine pinch roll field, specific hot rolling coiling machine pinch roll foreign matter clearing device.

Background

The pinch roll of the coiler is one of the important equipments on the production line of hot rolled strip steel, and is composed of an upper pinch roll, a lower pinch roll, a roll gap adjusting device and the like, and is used for guiding the strip steel to enter the coiler. The front side guide plate of the coiler is positioned behind the laminar cooling device and in front of the pinch roll, and is used for aligning the strip steel to a rolling central line and feeding the strip steel into the pinch roll, and the guide plate clamps the strip steel when the strip steel enters the pinch roll so as to reduce the tower shape of the steel coil. Friction is generated between the front side guide plate of the coiling machine and strip steel in the clamping process, a large amount of metal scraps are inevitably generated, and the metal scraps are slightly rolled into a steel coil to cause the defects of indentation and scratching of the rolled strip steel; the steel is stuck on the pinch roll, so that the defects of pressing pits and scratching of large-batch strip steel are caused.

At present, a common device for removing foreign matters on the surface of strip steel before a coiler is a side spray, but the side spray cannot adapt to strip steel with all width specifications, a spray leakage area easily exists, and the side spray is easy to wash foreign matters such as metal scraps onto a side guide plate and bounce to the surface of the strip steel due to the fact that the side guide plate clamps the strip steel.

The prior art, for example, has application numbers: 201220119383.0 discloses a finish rolling dust removal device, which mainly comprises an upper working roll, a lower working roll, an upper water cutting plate body, a lower water cutting plate body, a primary dust removal collecting pipe, a secondary dust removal collecting pipe, a nozzle and frame outlet blowing water, wherein the upper water cutting plate body and the lower water cutting plate body are arranged on the strip steel feeding sides of the upper working roll and the lower working roll, the primary dust removal collecting pipes are arranged in the strip steel feeding direction side by side and are vertical to each other, and the secondary dust removal collecting pipes and the primary dust removal collecting pipes form a square closed area; the nozzles are arranged at the end parts of the primary dust removal collecting pipe and the secondary dust removal collecting pipe; the primary dust removal collecting pipe and the secondary dust removal collecting pipe are fixedly arranged on the upper water cutting plate body and the lower water cutting plate body. Another example is application No.: 200420033463.X discloses a dust removing device of a hot rolling finishing mill group for removing fine iron oxide dust during rolling of strip steel, which comprises a lower working roll, an upper cooling header, a lower cooling header and a side guide plate, wherein the side guide plate is provided with an upper water baffle and a lower transition plate, the side guide plate is also provided with at least one upper nozzle and a lower nozzle, the upper nozzle and the lower nozzle are respectively positioned on the upper surface and the lower surface of the rolled strip steel when passing through, a distance is arranged between the upper nozzle and the upper surface of the strip steel and the outer surface of the upper working roll, and a distance is arranged between the lower nozzle and the lower surface of the strip steel and the outer surface of the lower working roll. As shown in fig. 6, both of the above patents are dust removing schemes set for a finish rolling area in a hot rolling process, in which water spraying devices are provided on both sides of a strip steel on a rolling horizontal line of the finish rolling area, and the purpose of the scheme is to 1 clean foreign matters on both sides of the strip steel; 2. the hardness of the strip steel needs to be effectively reduced by spraying water to the strip steel. However, no dust removing scheme is provided in the reeling area part, so that the corresponding dust removing scheme is arranged for the reeling area.

Disclosure of Invention

To the above problem, the utility model provides an install coiling regional coiling machine pinch roll foreign matter clearing device in hot rolling flow, concrete structure is as follows:

the foreign matter clearing device comprises a guide plate and a water collecting pipe arranged above the guide plate, wherein a rolling horizontal line for conveying strip steel is arranged at the inlet of a pinch roll of the hot rolling coiler, the guide plate is positioned above the rolling horizontal line and is close to the inlets of an upper pinch roll and a lower pinch roll, a plurality of nozzles arranged side by side are arranged at the bottom of the water collecting pipe, and the nozzles penetrate through the guide plate and are arranged towards the direction of the rolling horizontal line close to the inlet of the pinch roll of the hot rolling coiler.

Further, the guide plate forms an inclination angle of not more than 45 ︒ with the rolling horizontal line.

Further, the vertical height of the nozzle from the horizontal rolling line was 400 m.

Further, the collector pipe is connected with the inlet tube, the inlet tube is flexible rubber hose, and the inlet tube is connected with condenser tube, installs the stagnant water valve on the condenser tube.

Further, the collector pipe is a cylindrical pipe body with a circular cross section, brackets are arranged at two ends of the bottom of the collector pipe respectively, and the bottom of each bracket is fixedly connected with the guide plate through a bolt.

Further, the axial center positions of the two end faces of the water collecting pipe are respectively provided with a water pipe bevel gear which is arranged along the axial direction, the outer sides of the two ends of the water collecting pipe are respectively provided with a motor, the output shaft of the motor is arranged towards the direction of the water pipe bevel gear, the output shaft is provided with a motor bevel gear which is meshed with the water pipe bevel gear, and the two motors can synchronously and synchronously rotate in the same direction.

Furthermore, an opening is formed in the guide plate, and the length of the opening is matched with the rotation amplitude of the nozzle.

Furthermore, a semicircular groove matched with the surface of the water collecting pipe is formed in the bracket, a slide way arranged along the arc length is formed in the groove wall of the semicircular groove, an annular plug-in unit is sleeved on the contact surface of the water collecting pipe and the bracket, and the contact part of the annular plug-in unit and the groove is embedded in the slide way.

Compared with the prior art, the utility model has the advantages as follows:

1. the utility model discloses batching in the hot rolling flow is regional through setting up foreign matter cleaning device and foreign matter cleaning device sets up towards the upper surface of belted steel, can effectually clean the foreign matter of the upper surface of belted steel, has solved and has batched the indentation that the in-process should lead to by the foreign matter and wipe the fish tail defect to can be further carry out limited cooling to the belted steel, be that the hardness of belted steel obtains certain promotion, reduce the probability of impressing of foreign matter, promoted the quality of belted steel lapping.

2. The utility model discloses corresponding prior art need not to set up a cleaning device again in belted steel bottom, cost that can effectual saving equipment.

3. The utility model discloses an installation of the lateral part at the collector pipe makes the collector pipe carry out certain range pivoted drive arrangement and makes the scope of cleaning of collector pipe obtain enlarging, and then has promoted and has cleaned effect and cooling effect.

Drawings

FIG. 1 is an overall structure view of a foreign matter removing device of a pinch roll of a hot rolling coiler;

FIG. 2 is a top view of the guide plate and header;

FIG. 3 is a front view of FIG. 2;

FIG. 4 is a structural view of the carriage;

FIG. 5 is a structural view of a header;

FIG. 6 is a flow chart of a hot rolling process.

Reference numerals: 1. a pinch roll of a hot rolling coiler; 2. rolling a horizontal line; 3. a guide plate; 31. a baffle plate; 32. an opening; 4. a water inlet pipe; 5. a water stop valve; 6. a cooling water pipe; 7. a water collection pipe; 71. a water pipe bevel gear; 72. a nozzle; 73. an annular insert; 8. a motor; 81. a motor bevel gear; 9. a bracket; 10. a semicircular groove; 11. rough rolling R1; 12. rough rolling R2; 13. a coil box; 14. a finish rolling area; 15. laminar cooling; 16. a coiling area.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in figure 1, the foreign matter removing device for the pinch roll 1 of the hot rolling coiler comprises a guide plate 3 and a water collecting pipe 7 arranged above the guide plate 3, wherein a baffle plate 31 is arranged at the front end of the guide plate 3, which is positioned at the water collecting pipe 7. The hot rolling coiler pinch roll comprises a hot rolling coiler pinch roll 1, a guide plate 3, a plurality of nozzles and a hot rolling coiler pinch roll 72, wherein the hot rolling coiler pinch roll 1 is provided with a rolling horizontal line 2 for conveying strip steel at an inlet, the guide plate 3 is positioned above the rolling horizontal line 2 and is close to inlets of an upper pinch roll and a lower pinch roll, the bottom of a water collecting pipe 7 is provided with the plurality of nozzles which are arranged side by side, and the nozzles 72 penetrate through the guide plate 3 and face the direction of the rolling horizontal line 2 close. The guide plate 3 forms an angle of inclination with the horizontal rolling line 2 of not more than 45 ︒. The vertical height of the nozzle 72 from the rolling horizon 2 is 400 m. The collector pipe 7 is connected with inlet tube 4, inlet tube 4 is flexible rubber hose, and inlet tube 4 is connected with condenser tube 6, installs stagnant water valve 5 on the condenser tube 6.

Example 2

In order to expand the cleaning range of the nozzle in the above scheme, a driving device capable of rotating the water collecting pipe 7 in a certain range is installed outside the water collecting pipe 7, and the specific structure is as follows:

the water collecting pipe 7 is a cylindrical pipe body with a circular section, the two ends of the bottom of the water collecting pipe 7 are respectively provided with a bracket 9, and the bottom of the bracket 9 is fixedly connected with the guide plate 3 through bolts. The axial positions of two end surfaces of the water collecting pipe 7 are respectively provided with a water pipe bevel gear 71 which is arranged along the axial direction, the outer sides of two ends of the water collecting pipe 7 are respectively provided with a motor 8, an output shaft of the motor 8 is arranged in the direction of the water pipe bevel gear 71, the motor 8 bevel gear which is meshed with the water pipe bevel gear 71 is mounted on the output shaft, when the water collecting pipe 7 is driven to rotate less than 35 ︒, only one driving motor 8 is needed to be started to drive the water collecting pipe 7, and when the water collecting pipe 7 is driven to rotate more than 35 ︒ and less than 90 ︒, the two motors 8 are needed to be driven to rotate synchronously and in the same direction. The guide plate 3 is provided with an opening 32, and the length of the opening 32 is matched with the rotation amplitude of the nozzle 72. The bracket 9 is provided with a semicircular groove 10 which is matched with the surface of the water collecting pipe 7, the wall of the semicircular groove 10 is provided with a slideway which is arranged along the arc length, the contact surface of the water collecting pipe 7 and the bracket 9 is sleeved with an annular plug-in 73, and the contact part of the annular plug-in 73 and the groove is embedded in the slideway. The above-mentioned effects are achieved to facilitate the rotation of the water collecting pipe 7 and to avoid the abrasion of the surface of the water collecting pipe 7.

Example 3

As shown in fig. 1, the utility model discloses not be restricted to the mode of spraying water through inlet tube 4 to the band steel surface and know the foreign matter, for example change inlet tube 4 into on the basis with embodiment 1 and link to each other with high-pressurepipe and carry high-pressure draught to the collecting main, the last pneumatic valve of installing of high-pressurepipe, inlet tube 4 inserts in the collecting main 7, collecting main 7 distributes each nozzle 72 to high-pressure gas, nozzle 72 sprays high-pressure gas to the band steel, clean the band steel surface foreign matter through gaseous, such benefit need not to handle waste water, only need clear up the foreign matter.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (8)

1. The device is characterized in that a rolling horizontal line for conveying strip steel is arranged at the inlet of the pinch roll of the hot rolling coiler, the guide plate is positioned above the rolling horizontal line and close to the inlets of the upper pinch roll and the lower pinch roll, a plurality of nozzles arranged side by side are arranged at the bottom of the water collecting pipe, and the nozzles penetrate through the guide plate and are arranged in the direction of the rolling horizontal line close to the inlet of the pinch roll of the hot rolling coiler.

2. The hot rolling coiler pinch roll foreign matter removal device according to claim 1, wherein said guide plate forms an inclination angle with the horizontal line of rolling of not more than 45 ︒.

3. The hot rolling coiler pinch roll foreign matter removal device according to claim 1, wherein the vertical height of the nozzle from the horizontal rolling line is 400 m.

4. The hot rolling coiler pinch roll foreign matter removing device according to claim 1, wherein the water collecting pipe is connected with a water inlet pipe, the water inlet pipe is a rubber hose, the water inlet pipe is connected with a cooling water pipe, and a water stop valve is installed on the cooling water pipe.

5. The hot rolling coiler pinch roll foreign matter removal device according to claim 4, wherein the water collection pipe is a cylindrical pipe body with a circular cross section, brackets are respectively arranged at two ends of the bottom of the water collection pipe, and the bottom of each bracket is fixedly connected with the guide plate through a bolt.

6. The hot rolling coiler pinch roll foreign matter removing device according to claim 5, wherein water pipe bevel gears are axially arranged at the axial center positions of the two end surfaces of the water collecting pipe respectively, motors are arranged on the outer sides of the two ends of the water collecting pipe respectively, an output shaft of each motor is arranged in the direction of the corresponding water pipe bevel gear, the motor bevel gears meshed with the water pipe bevel gears are mounted on the output shafts, and the two motors can synchronously rotate in the same direction.

7. The hot rolling coiler pinch roll foreign matter removal device according to claim 1, wherein the guide plate is provided with an opening, and the length of the opening is matched with the rotation amplitude of the nozzle.

8. The foreign matter removing device for the pinch roll of the hot rolling coiler as claimed in claim 5, wherein the bracket is provided with a semicircular groove adapted to the surface of the water collecting pipe, the wall of the semicircular groove is provided with a slideway arranged along the arc length, the contact surface of the water collecting pipe and the bracket is sleeved with an annular plug-in unit, and the contact part of the annular plug-in unit and the groove is embedded in the slideway.

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