CN212551046U - Compact cold rolling unit - Google Patents
Compact cold rolling unit Download PDFInfo
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- CN212551046U CN212551046U CN202020993101.4U CN202020993101U CN212551046U CN 212551046 U CN212551046 U CN 212551046U CN 202020993101 U CN202020993101 U CN 202020993101U CN 212551046 U CN212551046 U CN 212551046U
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Abstract
The utility model relates to a compact cold rolling unit, in particular to a compact cold rolling unit, which comprises a frame, a roller system which is rotatably arranged in the frame, a roller system blowing device which is fixedly arranged on the frame and an outer water baffle device of the rolling mill, wherein the roller system comprises an upper supporting roller, an upper middle roller, an upper working roller, a lower middle roller and a lower supporting roller which are sequentially arranged from top to bottom, the central axes of the upper supporting roller, the upper middle roller, the upper working roller, the lower middle roller and the lower supporting roller are all positioned in the same vertical plane, the utility model uses the outer water baffle device of the rolling mill and the blowing device to replace an oil removing roller, thereby solving the problems of maintenance shutdown and surface scratch of strips, on the other hand, the utility model has no oil removing roller device, shortens the distance between the central line of a coiling machine and the central line of the rolling mill, and improves the yield, and simultaneously, the equipment cost is also reduced.
Description
Technical Field
The utility model relates to a cold rolling unit field, concretely relates to compact cold rolling unit.
Background
The reversible cold rolling mill set on the market is mainly completed by an oil removing roller device in the aspects of oil removal and water retaining. The oil removing device is mainly arranged in front of and behind the rolling mill. And the deoiling roller can leave greasy dirt on the surface thereof after long-time use, and the occurrence of the conditions such as abrasion and the like can cause incomplete removal of the residual process lubricating oil on the surface of the steel strip if the situation is not solved in time, thus seriously influencing the plate type and the surface quality of the rolled plate and influencing the yield of the plate. In addition, because the radial size of the bearing of the oil removing roller is limited, the bearing is often burnt out, and a rolling mill cover is arranged on the upper surface of the bearing close to the stand, so that the assembly, disassembly, lifting and maintenance are extremely difficult.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a compact cold rolling unit removes except that the oil roller, replaces except that the oil roller with the outer water deflector device of rolling mill, sweeps the device, and fundamentally has solved the maintenance and has shut down and the problem of strip surface fish tail, on the other hand, the utility model discloses well no deoiling roller device for the distance of coiling machine central line and rolling mill central line shortens, has improved the lumber recovery, has also reduced equipment cost simultaneously.
The utility model relates to a compact cold rolling unit, which comprises a frame, a roller system which is rotatably arranged in the frame, a roller system purging device which is fixedly arranged on the frame and a water baffle device outside a rolling mill, wherein the roller system comprises an upper supporting roller, an upper middle roller, an upper working roller, a lower middle roller and a lower supporting roller which are sequentially arranged from top to bottom, the central axes of the upper supporting roller, the upper middle roller, the upper working roller, the lower middle roller and the lower supporting roller are all positioned in the same vertical plane,
the outer water baffle device of the rolling mill comprises two symmetrically arranged water baffle devices, the rack and the roll system blowing device are both arranged in the area between the two water baffle devices, each water baffle device comprises guide grooves fixedly arranged on two corresponding sides of the rack, the guide grooves are vertically arranged, the two guide grooves are connected through a cross beam, and two ends of the cross beam respectively extend into one guide groove and are connected with the guide grooves in a sliding manner;
two ends of the cross beam are respectively connected with a lifting device, and the lifting devices are fixedly connected with the rack through mounting bases;
the beam is connected with an air injection beam through a fine adjustment device, a plurality of first air nozzles are fixedly arranged on the air injection beam, the first air nozzles are all connected with a first air inlet pipe, the central axes of the first air nozzles are located in the same plane, an included angle between the plane and the horizontal plane where the rolling line is located is 38-45 degrees, and the first air nozzles are located at the same vertical height;
an air guide device is further arranged in the area between the working roller and the first air nozzle and is fixed on the air jet beam;
the roll system purging device comprises two purging devices, the two purging devices are symmetrically arranged at an outlet and an inlet of a rolling mill and are fixedly connected with a rack, each purging device comprises five purging components fixedly connected with the rack, and the five purging components are sequentially arranged from top to bottom: purging an upper supporting roller, purging an upper middle roller, purging an upper working roller, purging a lower working roller and purging a lower middle roller;
a plurality of second air nozzles are arranged on the upper supporting roller purging, the upper middle roller purging and the lower middle roller purging respectively, and second air inlet pipes are connected to the second air nozzles on the upper supporting roller purging, the upper middle roller purging and the lower middle roller purging respectively;
the upper working roll purging device and the lower working roll purging device are respectively provided with a first emulsion nozzle and a compressed air nozzle, the first emulsion nozzles are connected with a first liquid inlet pipe, an emulsion valve is connected onto the first liquid inlet pipe, the compressed air nozzles are connected with a compressed air inlet pipe, and the compressed air inlet pipe is provided with a compressed air valve;
the compressed air valve is mutually exclusive connected with the emulsion valve, when the compressed air valve is opened, the emulsion valve is closed, and when the emulsion valve is opened, the compressed air valve is closed;
the second air nozzle, the first emulsion nozzle and the compressed air nozzle are all arranged towards the roller system.
Preferably, the air injection device further comprises a baffle plate, the air injection beam is fixedly arranged on the baffle plate, and the distance between the baffle plate and the cross beam is not less than the height of the air injection beam driven by the lifting bolt to lift.
Preferably, the fine adjustment device comprises a guide post, a guide through hole is formed in the beam, one end of the guide post penetrates through the guide through hole and then is fixedly connected with the air injection beam, the other end of the guide post is connected with a limiting plate through a fixing screw, the limiting plate is arranged above the beam and at least abuts against the beam through two lifting bolts, and the limiting plate is in threaded connection with the lifting bolts; and screwing the lifting screw to reduce or increase the distance between the limiting plate and the cross beam.
Preferably, the gas guiding device comprises a guide plate, an arc-shaped guiding surface is arranged on the guide plate, and the arc-shaped guiding surface guides the gas flow sprayed by the air nozzle to the area between the guide plate and the horizontal plane where the rolling line is located in an arc shape.
Preferably, the distance between the deflector and the horizontal plane of the rolling line is 10 mm.
Preferably, the angle between the central axis of the nozzle and the horizontal plane of the pass line is 38-45 degrees.
Preferably, the lifting device is a cylinder.
Or preferably, the second air nozzles swept by the upper support roller are uniformly distributed on the first jet beam, and the first jet beam is axially arranged along the upper support roller and is fixedly connected with the rack; second air nozzles swept by the upper support roller are arranged on the first jet beam in the same height and correspond to the area between the upper support roller and the upper middle roller, and the second air nozzles swept by the upper support roller are arranged towards the upper support roller;
second air nozzles for blowing by the upper middle roller are uniformly distributed on a second spraying beam, and the second spraying beam is axially arranged along the upper middle roller and is fixedly connected with the rack; second air nozzles blown by the upper middle roller are arranged in the area, corresponding to the position between the upper middle roller and the upper working roller, of the first spraying beam in equal height, and the second air nozzles of the upper middle roller are arranged towards the roller gap between the upper middle roller and the upper working roller;
the second air nozzles swept by the lower middle roller are uniformly distributed on a third jet beam, the third jet beam is arranged along the axial direction of the lower middle roller and is fixedly connected with the rack, the second air nozzles swept by the lower middle roller are uniformly arranged in the third jet beam in the same height in the area between the corresponding lower middle roller and the corresponding lower working roller, and the second air nozzles of the lower middle roller are arranged towards the roll gap between the lower middle roller and the lower working roller;
preferably, the first emulsion nozzle and the compressed air nozzle swept by the upper working roll are fixedly arranged on a fourth jet beam, the fourth jet beam is arranged along the axial direction of the upper working roll and is fixedly connected with the rack, the first emulsion nozzle and the compressed air nozzle swept by the upper working roll are respectively arranged in the area, corresponding to the upper working roll, of the fourth jet beam in equal height, the first emulsion nozzle swept by the upper working roll is positioned above the compressed air nozzle, the central axes of the first emulsion nozzles swept by the upper working roll are all positioned in the same horizontal plane and are parallel to the horizontal plane where the central axis of the upper working roll is positioned, and the central axis of the first emulsion nozzle swept by the working roll in the vertical direction is not higher than the central axis of the upper working roll; the included angle between the plane of the central axis of the compressed air nozzle swept by the upper working roll and the horizontal plane of the rolling line is 21-25 degrees;
the first emulsion nozzle and the compressed air nozzle which are swept by the lower working roll are fixedly arranged on a fifth jet beam, the fifth jet beam is arranged along the axial direction of the upper working roll and is fixedly connected with the rack, the first emulsion nozzle and the compressed air nozzle which are swept by the lower working roll are respectively arranged in an area, corresponding to the lower working roll, on the fifth jet beam in an equal-height mode, the first emulsion nozzle which is swept by the lower working roll is positioned below the compressed air nozzle, the central axes of the first emulsion nozzles which are swept by the lower working roll are positioned in the same horizontal plane and are parallel to the horizontal plane where the central axis of the lower working roll is positioned, and the central axis of the first emulsion nozzle which is swept by the working roll is not lower than the central axis of the lower working roll in the vertical direction; the included angle between the plane of the central axis of the compressed air nozzle for blowing by the lower working roll and the horizontal plane of the rolling line is 21-25 degrees.
The utility model discloses with the outer water baffle device of rolling mill, sweep the device and replace except that the oil roller, fundamentally has solved the problem that the maintenance was shut down and strip surface fish tail, on the other hand, the utility model discloses well no deoiling roller device for the distance of coiling machine central line and rolling mill central line shortens, has improved the lumber recovery, has also reduced equipment cost simultaneously.
The utility model discloses the outer breakwater device of well rolling mill sweeps in to the frame, and the emulsion of suppression backward flow blocks the emulsion refluence to protected and to be close to the thickness gauge of frame closely interior and avoid polluting, guaranteed the accuracy that the thickness gauge was measured, on the other hand, the air jet roof beam is when rolling, and the belted steel export plays supplementary clean effect, so avoided the secondary pollution of panel, guarantees the cleanliness on belted steel surface, makes the success rate improve greatly.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a right side view of the outer splash plate assembly of the mill of FIG. 1.
Fig. 3 is a sectional view a-a of fig. 2.
FIG. 4 is a schematic view showing the positional relationship between the first emulsion nozzle and the compressed air nozzle on the upper work roll.
Reference numerals: 1-upper supporting roller, 2-upper middle roller, 3-upper working roller, 4-lower working roller, 5-lower middle roller, 6-lower supporting roller, 7-upper supporting roller purging, 8-upper middle roller purging, 9-upper working roller purging, 10-lower working roller purging, 11-lower middle roller purging, 12-outer water baffle device;
14-a cross beam, 15-an oil cylinder, 16-a guide column, 17-an air injection beam, 18-a guide block, 19-a guide plate, 20-a first air nozzle and 21-a baffle plate;
22-first emulsion nozzle, 23-emulsion box, 24-compressed air nozzle, 25-compressed air inlet branch pipe and 26-fourth spray beam.
Detailed Description
The utility model relates to a compact cold rolling unit, which comprises a frame, a roller system which is rotatably arranged in the frame, a roller system purging device which is fixedly arranged on the frame and an outer water baffle device 12 of a rolling mill, wherein the roller system comprises an upper supporting roller 1, an upper middle roller 2, an upper working roller 3, a lower working roller 4, a lower middle roller 5 and a lower supporting roller 6 which are sequentially arranged from top to bottom, the central axes of the upper supporting roller 1, the upper middle roller 2, the upper working roller 3, the lower working roller 4, the lower middle roller 5 and the lower supporting roller 6 are all positioned in the same vertical plane,
the outer water baffle device 12 of the rolling mill comprises two symmetrically arranged water baffle devices, the rack and the roll system blowing device are arranged in a region between the two water baffle devices, each water baffle device comprises guide grooves fixedly arranged on two corresponding sides of the rack, the guide grooves are arranged on guide blocks 18, the guide blocks 18 are fixedly connected with the rack, the guide grooves are vertically arranged, the two guide grooves are connected through a cross beam 14, and two ends of the cross beam 14 respectively extend into one guide groove and are connected with the guide grooves in a sliding manner;
two ends of the cross beam 14 are respectively connected with a lifting device, and the lifting devices are fixedly connected with the rack through mounting bases;
the cross beam 14 is connected with an air injection beam 17 through a fine adjustment device, a plurality of first air nozzles 20 are fixedly arranged on the air injection beam 17, the first air nozzles 20 are all connected with a first air inlet pipe, the central axes of the first air nozzles 20 are located in the same plane, an included angle between the plane and the horizontal plane where the rolling line is located is 38-45 degrees, and the first air nozzles 20 are located at the same vertical height;
an air guide device is also arranged in the area between the working roller and the first air nozzle 20 and is fixed on the air jet beam 17;
the roll system purging device comprises two purging devices, the two purging devices are symmetrically arranged at an outlet and an inlet of a rolling mill and are fixedly connected with a rack, each purging device comprises five purging components fixedly connected with the rack, and the five purging components are sequentially arranged from top to bottom: an upper supporting roller purging 7, an upper middle roller purging 8, an upper working roller purging 9, a lower working roller purging 10 and a lower middle roller purging 11;
a plurality of second air nozzles are arranged on the upper supporting roller purging 7, the upper middle roller purging 8 and the lower middle roller purging 11, and second air inlet pipes are connected to the second air nozzles on the upper supporting roller purging 7, the upper middle roller purging 8 and the lower middle roller purging 11;
the upper working roll purging 9 and the lower working roll purging 10 are both provided with a first emulsion nozzle 22 and a compressed air nozzle 24, the first emulsion nozzle 22 is connected with a first liquid inlet pipe, the first liquid inlet pipe is connected with an emulsion valve, the compressed air nozzle 24 is connected with a compressed air inlet pipe, and the compressed air inlet pipe is provided with a compressed air valve;
the compressed air valve is mutually exclusive connected with the emulsion valve, when the compressed air valve is opened, the emulsion valve is closed, and when the emulsion valve is opened, the compressed air valve is closed;
the second air nozzle, the first emulsion nozzle 22 and the compressed air nozzle 24 are all disposed toward the roll.
The air injection device is characterized by further comprising a baffle plate 21, the air injection beam 17 is fixedly arranged on the baffle plate 21, and the distance between the baffle plate 21 and the cross beam 14 is not less than the height of the air injection beam 17 driven by the lifting bolt to lift.
The fine adjustment device comprises a guide post 16, a guide through hole is formed in the cross beam 14, one end of the guide post 16 penetrates through the guide through hole and then is fixedly connected with the air injection beam 17, the other end of the guide post 16 is connected with a limiting plate through a fixing screw, the limiting plate is arranged above the cross beam 14 and at least abuts against the cross beam 14 through two lifting bolts, and the limiting plate is in threaded connection with the lifting bolts; and screwing the lifting screw to reduce or increase the distance between the limiting plate and the cross beam 14.
The gas flow guiding device comprises a flow guiding plate 19, wherein an arc-shaped flow guiding surface is arranged on the flow guiding plate 19, and the arc-shaped flow guiding surface guides the gas flow sprayed by the air nozzle to the area between the flow guiding plate 19 and the horizontal plane where the rolling line is located in an arc shape.
The distance between the deflector 19 and the horizontal plane on which the rolling line is located is 10 mm.
The included angle between the central axis of the nozzle and the horizontal plane of the rolling line is 38-45 degrees.
The lifting device is an oil cylinder 15.
Second air nozzles of the upper supporting roller blowing device 7 are uniformly distributed on a first jet beam, and the first jet beam is axially arranged along the upper supporting roller 1 and is fixedly connected with the rack; second air nozzles of the upper support roller blow 7 are arranged on the first jet beam in the same height and in the area between the upper support roller 1 and the upper middle roller 2, and the second air nozzles of the upper support roller blow 7 are arranged towards the upper support roller 1;
second air nozzles of the upper middle roller blowing 8 are uniformly distributed on a second spraying beam, and the second spraying beam is axially arranged along the upper middle roller 2 and is fixedly connected with the rack; the second air nozzles of the upper middle roller blow-down 8 are arranged on the first spray beam in the same height corresponding to the area between the upper middle roller 2 and the upper working roller 3, and the second air nozzles of the upper middle roller 2 are arranged towards the roller gap between the upper middle roller 2 and the upper working roller 3;
the second air nozzles of the lower middle roller blower 11 are uniformly distributed on a third spray beam, the third spray beam is arranged along the axial direction of the lower middle roller 5 and is fixedly connected with the rack, the second air nozzles of the lower middle roller blower 11 are uniformly arranged on the third spray beam at the same height in a region corresponding to the space between the lower middle roller 5 and the lower working roller 4, and the second air nozzles of the lower middle roller 5 are arranged towards the roll gap between the lower middle roller 5 and the lower working roller 4;
the first emulsion nozzle 22 and the compressed air nozzle 24 of the upper working roll purging 9 are fixedly arranged on a fourth spraying beam 26, the fourth spraying beam 26 is axially arranged along the upper working roll 3 and is fixedly connected with the rack, the first emulsion nozzle 22 and the compressed air nozzle 24 of the upper working roll purging 9 are respectively arranged in the fourth spraying beam 26 in equal height in an area corresponding to the upper working roll 3, the first emulsion nozzle 22 of the upper working roll purging 9 is positioned above the compressed air nozzle 24, the central axes of the first emulsion nozzles 22 of the upper working roll purging 9 are all positioned in the same horizontal plane and are parallel to the horizontal plane in which the central axis of the upper working roll 3 is positioned, and the central axis of the first emulsion nozzle 22 of the working roll purging 9 in the vertical direction is not higher than the central axis of the upper working roll 3; the included angle between the plane of the central axis of the compressed air nozzle 24 of the upper working roll blowing device 9 and the horizontal plane of the rolling line is 21-25 degrees;
the first emulsion nozzle and the compressed air nozzle 24 of the lower working roll purging device 10 are fixedly arranged on a fifth spraying beam, the fifth spraying beam is axially arranged along the upper working roll 3 and is fixedly connected with the rack, the first emulsion nozzle 22 and the compressed air nozzle of the lower working roll purging device 10 are respectively arranged in the region, corresponding to the lower working roll 4, of the fifth spraying beam in equal height, the first emulsion nozzle 22 of the lower working roll purging device 10 is positioned below the compressed air nozzle, the central axes of the first emulsion nozzles of the lower working roll purging device 10 are all positioned in the same horizontal plane and are parallel to the horizontal plane where the central axis of the lower working roll 4 is positioned, and the central axis of the first emulsion nozzle of the working roll purging device 9 is not lower than the central axis of the lower working roll 4 in the vertical direction; the included angle between the plane of the central axis of the compressed air nozzle of the lower working roll blowing device 10 and the horizontal plane of the rolling line is 21-25 degrees.
The specific connection between the first emulsion nozzle 22 and the compressed air nozzle 24 on the upper work roll purge 9 is as follows: one surface of the fourth injection beam 26 facing the roller system is a working surface, an emulsion injection device installation area and a compressed air purging device installation area are arranged on the working surface of the fourth injection beam 26, and the emulsion injection device installation area and the compressed air purging device installation area are vertically arranged on the working surface of the fourth injection beam 26;
an emulsion box body 23 is arranged in an emulsion injection device installation area, a plurality of first emulsion nozzles 22 are arranged on one surface, facing the upper working roll 3, of the emulsion box body 23, a liquid inlet branch pipe is connected to the emulsion box body 23, the liquid inlet branch pipe is connected with a first liquid inlet pipe, and an emulsion valve is arranged on the first liquid inlet pipe;
a plurality of compressed air nozzles 24 are installed in the installation area of the compressed air blowing device, compressed air inlet branch pipes 25 are connected to the compressed air nozzles 24, the compressed air inlet branch pipes 25 are connected with compressed air inlet pipes, and compressed air valves are arranged on the compressed air inlet pipes;
the first emulsion nozzles 22 are arranged in a plurality of layers, the joints of the first emulsion nozzles 22 and the fourth spray beams 26 which are positioned on the same layer are positioned on the same vertical height, and the first emulsion nozzles 22 on two adjacent layers are arranged in a staggered manner;
the first emulsion nozzles 22 are all arranged towards the work rolls.
The lower working roll purging device 10 and the upper working roll purging device 9 are symmetrically arranged relative to the horizontal plane of the rolling line.
In the rolling process, before strip steel enters a roll bite angle, a first emulsion nozzle 22 of an upper working roll purging 9 and a lower working roll purging 10 is opened in advance to spray emulsion, a layer of lubricating oil film is formed on the surface of the strip steel to play a role in anti-sticking lubrication, when the emulsion is not required to be cooled, emulsion valves of the upper working roll purging 9 and the lower working roll purging 10 are closed, and meanwhile, compressed air valves of the upper working roll purging 9 and the lower working roll purging 10 are opened to clean and purge the plate surface. The emulsion valve and the compressed air valve form a mutual exclusion relationship, a plurality of liquid inlet branch pipes are connected to the emulsion box body 23, the liquid inlet branch pipes are connected with the first liquid inlet pipe, and the structure enables the flow of the emulsion to be more stable and the pressure to be balanced.
The outer water baffle device 12 of the rolling mill effectively blocks the residue of emulsion in the reverse direction in the reversible rolling process, has better sealing performance than the original structure, and compressed air purges emulsion on the roll gap and the surface of a strip, so that the plate shape and the surface quality of a rolled plate are improved, and the yield of the plate is greatly improved.
The second air nozzle of the upper supporting roller blowing 7 mainly blows the emulsion on the roller surface of the upper supporting roller 1; the second air nozzle of the upper middle roller blowing 8 mainly blows the emulsion in the roller gap between the upper middle roller 2 and the upper working roller 3; a second air nozzle of the lower middle roller blowing 11 is mainly used for blowing the emulsion in the roller gap between the lower middle roller 5 and the lower working roller 4; the compressed air nozzles 24 of the upper working roll purging 9 and the lower working roll purging 10 mainly purge the emulsion between the upper working roll 3 and the lower working roll 4, i.e., the emulsion on the strip steel.
The function of the upper intermediate roll purge 8 also has the function of reducing the negative pressure formed between the upper intermediate roll 2 and the upper work roll 3, thereby reducing the oil stains accumulated on the surface of the upper work roll 3;
the lower intermediate roll purge 11 also has a function of reducing accumulated oily stains on the surface of the upper work roll 3 in order to reduce the negative pressure formed between the lower intermediate roll 5 and the lower work roll 4;
the roller system purging device uses the compressed air amount of 4000Nm3The volume is reduced to 2500Nm around the/h3And the gas consumption is greatly saved by about/h.
The water retaining devices of the outer water retaining plate device 12 of the rolling mill respectively perform plate surface blowing on the strip steel at the inlet and the outlet of the stand, dry the surface of the strip steel, blow off the residual emulsion on the surface of the strip steel, and quickly blow off the emulsion on the surface of the strip steel from the plate surface when the emulsion has no time and space to form strips on the plate surface within a short distance from the roll gap area of the strip steel, thereby drying the surface of the strip steel.
The utility model discloses fundamentally has solved the problem of maintenance shut down and strip surface fish tail. On the other hand, the utility model provides a well nothing deoiling roller device for the distance of coiling machine central line and rolling mill central line shortens, has improved the lumber recovery, the utility model provides a feed liquor pipe or intake pipe that involve all link to each other with the emulsion source or the air supply that rolling mill itself is connected among the prior art.
Taking a 1080 mill example, the distance between the centerline of the pre-coiler and the cold mill train is reduced by 1010mm and the distance between the centerline of the post-coiler and the cold mill train is reduced by 1100mm, for a total of 2110mm, i.e., a material loss of 2110mm per coil is reduced. Thereby improving the yield by 0.3%.
The utility model discloses with the outer water baffle device 12 of rolling mill, sweep the device and replace the deoiling roller, fundamentally has solved the problem that the maintenance was shut down and strip surface fish tail, on the other hand, the utility model discloses well no deoiling roller device for the distance of coiling machine central line and rolling mill central line shortens, has improved the lumber recovery, has also reduced equipment cost simultaneously.
The utility model discloses outer breakwater device 12 of well rolling mill sweeps in to the frame, and the emulsion of suppression backward flow blocks the emulsion refluence to protected and to be close to the thickness gauge of frame closely interior and avoid polluting, guaranteed the accuracy that the thickness gauge was measured, on the other hand, air injection roof beam 17 is when rolling, and the belted steel export plays supplementary clean effect, so avoided the secondary pollution of panel, guarantees the cleanliness on belted steel surface, makes the success rate improve greatly.
Claims (9)
1. A compact cold rolling unit comprises a rack, a roller system blowing device and an outer water baffle device (12) of a rolling mill, wherein the roller system is arranged in the rack in a rotating manner, the roller system is fixedly arranged on the rack and comprises an upper supporting roller (1), an upper middle roller (2), an upper working roller (3), a lower working roller (4), a lower middle roller (5) and a lower supporting roller (6) which are sequentially arranged from top to bottom, the central axes of the upper supporting roller (1), the upper middle roller (2), the upper working roller (3), the lower working roller (4), the lower middle roller (5) and the lower supporting roller (6) are all positioned in the same vertical plane, and the compact cold rolling unit is characterized in that,
the outer water baffle device (12) of the rolling mill comprises two symmetrically arranged water baffle devices, the rack and the roll system blowing device are arranged in a region between the two water baffle devices, each water baffle device comprises guide grooves fixedly arranged on two corresponding sides of the rack, the guide grooves are vertically arranged, the two guide grooves are connected through a cross beam (14), and two ends of the cross beam (14) respectively extend into one guide groove and are connected with the guide grooves in a sliding manner;
two ends of the cross beam (14) are respectively connected with a lifting device, and the lifting devices are fixedly connected with the rack through mounting bases;
the cross beam (14) is connected with an air injection beam (17) through a fine adjustment device, a plurality of first air nozzles (20) are fixedly arranged on the air injection beam (17), the first air nozzles (20) are connected with a first air inlet pipe, the central axes of the first air nozzles (20) are positioned in the same plane, an included angle between the plane and the horizontal plane where the rolling line is positioned is 38-45 degrees, and the first air nozzles (20) are positioned at the same vertical height;
an air guide device is further arranged in the area between the working roller and the first air nozzle (20), and the air guide device is fixed on the air injection beam (17);
the roll system purging device comprises two purging devices, the two purging devices are symmetrically arranged at an outlet and an inlet of a rolling mill and are fixedly connected with a rack, each purging device comprises five purging components fixedly connected with the rack, and the five purging components are sequentially arranged from top to bottom: an upper supporting roller purging (7), an upper middle roller purging (8), an upper working roller purging (9), a lower working roller purging (10) and a lower middle roller purging (11);
a plurality of second air nozzles are arranged on the upper supporting roller purging device (7), the upper middle roller purging device (8) and the lower middle roller purging device (11), and second air inlet pipes are connected to the second air nozzles on the upper supporting roller purging device (7), the upper middle roller purging device (8) and the lower middle roller purging device (11);
the upper working roll purging device (9) and the lower working roll purging device (10) are respectively provided with a first emulsion nozzle (22) and a compressed air nozzle (24), the first emulsion nozzle (22) is connected with a first liquid inlet pipe, the first liquid inlet pipe is connected with an emulsion valve, the compressed air nozzle (24) is connected with a compressed air inlet pipe, and the compressed air inlet pipe is provided with a compressed air valve;
the compressed air valve is mutually exclusive connected with the emulsion valve, when the compressed air valve is opened, the emulsion valve is closed, and when the emulsion valve is opened, the compressed air valve is closed;
the second air nozzle, the first emulsion nozzle (22) and the compressed air nozzle (24) are all arranged towards the roller system.
2. A compact cold rolling mill train according to claim 1, further comprising a baffle plate (21), wherein the air injection beam (17) is fixedly arranged on the baffle plate (21), and the distance between the baffle plate (21) and the cross beam (14) is not less than the height of the lifting bolt driving the air injection beam (17) to lift.
3. The compact cold rolling unit according to claim 2, wherein the fine adjustment device comprises a guide post (16), the cross beam (14) is provided with a guide through hole, one end of the guide post (16) is fixedly connected with the air injection beam (17) after passing through the guide through hole, the other end of the guide post (16) is connected with a limit plate through a fixing screw, the limit plate is arranged above the cross beam (14), the limit plate abuts against the cross beam (14) through at least two lifting bolts, and the limit plate is in threaded connection with the lifting bolts; and screwing the lifting screw to reduce or increase the distance between the limiting plate and the cross beam (14).
4. A compact cold rolling mill train according to claim 3, wherein the gas guiding means comprise a deflector (19), said deflector (19) being provided with a curved guiding surface which guides the gas flow from the air nozzles in a curved manner to the area between the deflector (19) and the horizontal plane of the pass line.
5. A compact cold rolling train according to claim 4, wherein the distance between the deflector (19) and the horizontal plane of the rolling line is 10 mm.
6. A compact cold rolling mill train according to claim 5, wherein the angle between the central axis of the nozzle and the horizontal plane of the pass line is 38-45 degrees.
7. A compact cold rolling train according to claim 6, wherein said lifting means are cylinders (15).
8. A compact cold rolling mill train according to any of claims 1 to 7, wherein the second air nozzles of the upper support roll purge (7) are uniformly distributed on a first spray beam, which is arranged axially along the upper support roll (1) and is fixedly connected to the stand; second air nozzles of the upper supporting roller blower (7) are arranged on the first jet beam in the same height corresponding to the area between the upper supporting roller (1) and the upper middle roller (2), and the second air nozzles of the upper supporting roller blower (7) are arranged towards the upper supporting roller (1);
second air nozzles of the upper middle roller blowing device (8) are uniformly distributed on a second spraying beam, and the second spraying beam is axially arranged along the upper middle roller (2) and is fixedly connected with the rack; second air nozzles of the upper middle roller blowing device (8) are arranged on the first spraying beam in the same height and correspond to the area between the upper middle roller (2) and the upper working roller (3), and the second air nozzles of the upper middle roller (2) are arranged towards the roll gap between the upper middle roller (2) and the upper working roller (3);
the lower middle roller blowing device is characterized in that second air nozzles of the lower middle roller blowing device (11) are uniformly distributed on a third spraying beam, the third spraying beam is axially arranged along a lower middle roller (5) and is fixedly connected with a rack, the second air nozzles of the lower middle roller blowing device (11) are uniformly arranged on the third spraying beam at the same height and correspond to the area between the lower middle roller (5) and the lower working roller (4), and the second air nozzles of the lower middle roller (5) are uniformly arranged towards the roll gap between the lower middle roller (5) and the lower working roller (4).
9. A compact cold rolling mill train according to claim 8, characterized in that the first emulsion nozzle (22) and the compressed air nozzle (24) of the upper work roll purge (9) are fixedly arranged on a fourth spray beam, which is arranged axially along the upper work roll (3) and is fixedly connected to the stand, the first emulsion nozzle (22) and the compressed air nozzle (24) of the upper work roll purge (9) are arranged on the fourth spray beam at equal height in the area corresponding to the upper work roll (3), respectively, and the first emulsion nozzle (22) of the upper work roll purge (9) is located above the compressed air nozzle (24), the central axes of the first emulsion nozzle (22) of the upper work roll purge (9) are all located in the same horizontal plane and parallel to the horizontal plane in which the central axes of the upper work roll (3) are located, and the central axes of the first emulsion nozzle (22) of the upper work roll purge (9) are not higher than the central axes of the upper work roll (3) in the vertical direction An axis; an included angle between a plane where the central axis of a compressed air nozzle (24) of the upper working roll blowing device (9) is located and a horizontal plane where a rolling line is located is 21-25 degrees;
the first emulsion nozzle and the compressed air nozzle of the lower working roll purging device (10) are fixedly arranged on a fifth spraying beam, the fifth spraying beam is axially arranged along the upper working roll (3) and is fixedly connected with the rack, the first emulsion nozzle and the compressed air nozzle of the lower working roll purging device (10) are respectively arranged in the region, corresponding to the lower working roll (4), of the fifth spraying beam in an equal height mode, the first emulsion nozzle of the lower working roll purging device (10) is located below the compressed air nozzle, the central axes of the first emulsion nozzles of the lower working roll purging device (10) are located in the same horizontal plane and are parallel to the horizontal plane where the central axis of the lower working roll (4) is located, and the central axis of the first emulsion nozzle of the working roll purging device (9) in the vertical direction is not lower than the central axis of the lower working roll (4); the included angle between the plane of the central axis of the compressed air nozzle of the lower working roll blowing device (10) and the horizontal plane of the rolling line is 21-25 degrees.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020993101.4U CN212551046U (en) | 2020-06-03 | 2020-06-03 | Compact cold rolling unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020993101.4U CN212551046U (en) | 2020-06-03 | 2020-06-03 | Compact cold rolling unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113083920A (en) * | 2021-03-24 | 2021-07-09 | 马鞍山钢铁股份有限公司 | Sweeping device for surface of rolled strip steel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113083920A (en) * | 2021-03-24 | 2021-07-09 | 马鞍山钢铁股份有限公司 | Sweeping device for surface of rolled strip steel |
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