CN117139577A - Continuous casting machine knockout water-cooling long roller and water-cooling method - Google Patents
Continuous casting machine knockout water-cooling long roller and water-cooling method Download PDFInfo
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- CN117139577A CN117139577A CN202311119934.2A CN202311119934A CN117139577A CN 117139577 A CN117139577 A CN 117139577A CN 202311119934 A CN202311119934 A CN 202311119934A CN 117139577 A CN117139577 A CN 117139577A
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- 238000001816 cooling Methods 0.000 title claims abstract description 97
- 238000009749 continuous casting Methods 0.000 title claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 118
- 230000005540 biological transmission Effects 0.000 claims abstract description 40
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 239000000498 cooling water Substances 0.000 claims description 28
- 239000010410 layer Substances 0.000 claims description 17
- 239000011229 interlayer Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 22
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000007599 discharging Methods 0.000 abstract description 5
- 229910001208 Crucible steel Inorganic materials 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 10
- 238000011031 large-scale manufacturing process Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The invention discloses a continuous casting machine blank-discharging water-cooling long roller and a water-cooling method, and belongs to the technical field of cast steel. The invention relates to a water-cooling long roll, which comprises an outer roll body and an inner roll body which are sleeved in a double-layer manner, bearings which are respectively connected to two sides of the outer roll body in a rotating manner through a free side roll shaft and a transmission side roll shaft, a water inlet pipe which axially penetrates through the whole outer roll body, and a rotary joint which is rotationally connected to the end part of the free side roll shaft, wherein end plates are fixed at two ends of the inner roll body, annular sealing baffles are radially fixed at two ports of the outer roll body, the fixed ends of the free side roll shaft and the transmission side roll shaft are respectively and axially symmetrically fixed in the centers of the sealing baffle rings at corresponding positions of the two ports of the outer roll body, and the free ends are respectively and rotationally connected with the bearings at two sides of the outer roll body; roll shaft through holes are axially reserved in the free side roll shaft and the transmission side roll shaft; the left end of the rotary joint is reserved with a water outlet and a water inlet of each channel. Solves the problems of low cooling efficiency of long rollers and poor heat exchange effect in the continuous cast steel production line in the prior art.
Description
Technical Field
The invention belongs to the field of cast steel, and particularly relates to a continuous casting machine blank-discharging water-cooling long roller and a water-cooling method.
Background
In the continuous casting production line, the long roller (the length is more than 1 m) for transporting hot billets is contacted with hot billets, if the conveying roller is overheated, bending can be generated and impact is generated on the bearing of the conveying roller, so that the service life of the bearing and the roller body is influenced, and the long roller body of the continuous casting machine is required to be made into a water-cooling structure.
The water-cooling conveying roller way used in the metallurgical industry at present is generally provided with a water inlet channel in the operation side, an axial cooling water channel (a cavity, a spiral guide plate, an internal welding coiling cooling channel, a plurality of through water channels uniformly distributed along the length direction of the roller body and the like) in the roller body, a water outlet channel in the transmission side, and cooling water entering through one side, taking away the heat of the surface of the roller body through the water channel of the roller body, discharging from the other side to reduce the temperature of the surface of the roller, thereby achieving the purpose of prolonging the service life of the roller. However, this structure cannot be realized in a transmission form in which the reducer shaft is connected with the roller shaft through a coupling and the reducer is directly sleeved on the roller shaft. And for the long roller, the cooling efficiency is low and the heat exchange effect is poor.
Through searching, patent application number 201510332650.0 discloses a water-cooling roller way with a guide ring, and compared with a traditional guide ring channel water-cooling roller with water inlet at one side and water outlet at one side, the scheme has the advantages that cooling water flows out from a non-transmission side water inlet pipe to a transmission side, turns after flowing out from an end water distribution pipe, uniformly flows through a roller way body interlayer cooling channel under the action of the guide ring, and is discharged from the non-transmission side to a pipeline between the non-transmission side water inlet pipe and a roller shaft, so that the cooling mode of same side inlet and outlet is realized. However, the structure is complex, the manufacturing and processing difficulty of the guide ring is high, and the guide ring is not suitable for a longer structural form of the roller body.
Patent application number 201611106655.2 discloses a metallurgical hot rolling slab water-cooling roll table, has improved for traditional cavity cooling channel structure, has solved the problem that the inlet tube sagging easily causes the water-cooling roll table to damage. The structure is applicable to a roller way with a longer roller body, and realizes a cooling mode of same-side inlet and outlet. However, for large-sized rollers, the cavity cooling channel structure is not necessarily uniform in the exchange of cold water and hot water in the cavity area, the heat exchange effect is poor, and under the same cooling efficiency, the consumption of cooling water is large, the energy consumption is high, and the investment of a cooling water system is high.
Disclosure of Invention
1. Problems to be solved
Aiming at the problems of low cooling efficiency and poor heat exchange effect of long rolls on a continuous casting production line in the prior art, the invention provides a continuous casting machine blank-discharging water-cooling long roll and a water-cooling method, which are suitable for a long roll structure, effectively improve the water-cooling heat exchange effect and efficiency, ensure the normal use of the long roll at high temperature, prolong the service life of the roll and improve the working environment.
2. Technical proposal
In order to solve the problems, the invention adopts the following technical scheme:
the utility model provides a continuous casting machine knockout water-cooling long roll, includes the outer roll body and the interior roll body that double-deck cup joint to and rotate the bearing of being connected in outer roll body both sides through free side roller and transmission side roller respectively, still including the axial inlet tube that runs through whole outer roll body and rotate the rotary joint who connects in free side roller tip, wherein:
the two ends of the inner roller body are respectively fixed with end plates, and are fixed in the outer roller body through the two end plates, annular sealing baffles are radially fixed at the two ports of the outer roller body, the fixed ends of the free side roller shaft and the transmission side roller shaft are respectively and axially symmetrically fixed in the centers of the sealing baffle rings at the corresponding positions of the two ports of the outer roller body, and the free ends are respectively and rotatably connected with bearings at the two sides of the outer roller body; roll shaft through holes are axially reserved in the free side roll shaft and the transmission side roll shaft; a water outlet and a water inlet of the respective channels are reserved at the left end of the rotary joint;
inside the cavity of the roller body, after the two ends of the water inlet pipe sequentially axially penetrate out of the end plate and the roller shaft through holes, the left end is communicated with the water inlet through a support sleeve, and the support sleeve is fixed in a free side roller shaft in the bearing; an annular gap is reserved between the roller shaft through hole and the water inlet pipe; slots are reserved on the outer circumferences of the end plate and the support sleeve; the free side roll shaft, the transmission side roll shaft and the roll shaft are respectively provided with a water return through hole in a radial direction, and the annular gap is sequentially communicated with slotted holes and water outlets which are respectively reserved on the outer circumference of the support sleeve; in the concrete use, form the water inlet passageway after water inlet, support sleeve pipe and inlet tube intercommunication, form annular cooling channel between the outer roller layer of outer roller body and the interior roller body, delivery port, each slotted hole, return water through-hole, annular clearance and cooling channel intercommunication back form the return water passageway, the delivery port homonymy sets up, form the intermediate layer between outer roller layer and interior roller body, the intermediate layer forms the water gap, the cooling water only need through the water gap can cool off the roller, the cold and hot water return circuit is stable, cold and hot water exchange is even, can effectively improve the cooling effect.
Further technical scheme, the inside annular trompil baffle that still radially is fixed with of outer roll body between closure baffle and the end plate, the right-hand member of free side roller is fixed in the trompil baffle ring heart, and the excircle Zhou Yuliu slotted hole of trompil baffle guarantees that the return water is unobstructed in, and the fixed of free side roller and transmission side roller is more stable, moreover, makes things convenient for both ends all welded type fixed connection.
According to the technical scheme, the thickness of the cooling channel is not more than 20mm, the reasonable water gap thickness can ensure that cooling water introduced into the roller body is fully contacted with the inner surface of the outer roller layer, the cooling area is increased, heat transferred to the roller body by continuous casting bloom is taken away, the cooling water supply quantity can be reduced on the premise of ensuring the cooling effect, and the investment of a cooling water system can be reduced for a large-scale production line.
Further technical scheme, the end of transmission side roller passes through the shaft coupling with gear motor output shaft and rotates to be connected, and the motor drives whole roll body and rotates through the bearing, and the overlapping effect of rivers when the roller rotates forms the spiral cooling effect to the roll surface, and the cooling effect is more even.
Still further technical scheme, the roller through-hole of transmission side roller is the blind hole, reserve the return water chamber between the right-hand member of inlet tube and the blind hole, play the cooling effect to the bearing.
Further technical scheme reserves annular backward flow ring chamber between closure baffle and the trompil baffle, keeps in the cooling return water to guarantee that cooling water keeps being full of the state in the cooling channel, compare in cooling channel, the liquid level of the cooling return water in the backward flow ring chamber also is easy to monitor.
The water cooling method for the long water-cooled roller of the continuous casting machine bloom includes the steps that after cooling water enters from a water inlet channel, the outer roller layer is cooled through a cooling channel in the process of returning through a water return channel.
3. Advantageous effects
(1) The continuous casting machine blank-discharging water-cooling long roller and the water-cooling method are fully suitable for the longer structural form of the roller body, the interlayer is manufactured in the outer layer and the inner cavity of the roller, the interlayer forms water gaps, cooling water can cool the roller only through the water gaps, a cold water loop and a hot water loop are stable, cold water and hot water exchange is uniform, the cooling effect can be effectively improved, the whole water-cooling structural design is innovative, the processing is convenient, and the manufacturing cost is low;
(2) Compared with the mode that the cooling channel of the cavity and the interior of the cooling roller are filled with cooling water, the water-cooling long roller can reduce the cooling water supply quantity on the premise of ensuring the cooling effect, can reduce the investment of a cooling water system for a large-scale production line, and is more friendly to the production process energy requirements of the large-scale production line along with the improvement of the energy application and the environmental requirements;
(3) Compared with the common structural forms of adding a spiral guide plate in the roller body, internally welding and coiling a cooling channel, uniformly distributing a plurality of through water channels along the length direction of the roller body and the like, the water-cooling long roller for the continuous casting machine knockout and the water-cooling method are simpler and more convenient to manufacture and process, and greatly reduce welding deformation, welding stress, welding workload and manufacturing cost.
(4) Compared with a one-in one-out cooling roller mode, the continuous casting machine knockout water-cooling long roller is suitable for various transmission modes such as a speed reducer, a chain wheel and the like, and has wide applicability.
Drawings
FIG. 1 is a schematic diagram of a cross-sectional structure of a water-cooled long roll for casting a billet of a continuous casting machine according to an embodiment;
FIG. 2 is a partially enlarged schematic illustration of the structure of FIG. 1;
FIG. 3 is a schematic view of a free-side roller structure according to an embodiment;
FIG. 4 is a schematic side view of FIG. 3;
FIG. 5 is a schematic view of a structure of a driving side roller shaft according to an embodiment;
FIG. 6 is a side view schematic of FIG. 5;
FIG. 7 is a schematic view of an open-cell baffle structure according to an embodiment;
FIG. 8 is a schematic cross-sectional view of FIG. 7;
FIG. 9 is a schematic view of a closure baffle structure according to an embodiment;
FIG. 10 is a schematic cross-sectional view of FIG. 9;
FIG. 11 is a schematic view of a support sleeve structure according to an embodiment;
fig. 12 is a side view schematic of fig. 11.
FIG. 13 is a schematic view of an end plate structure according to an embodiment;
FIG. 14 is a schematic view of a continuous casting machine bloom water-cooled long roll with a drive motor installed;
fig. 15 is a schematic structural view of a rotary joint according to an embodiment.
In the figure: 1. an outer roller body; 2. a perforated baffle; 3. a closing baffle; 4. a water inlet pipe; 5. a free side roller shaft; 6. a transmission side roller shaft; 7. a support sleeve; 8. a slot hole; 9. a rotary joint; 10. a speed reducing motor; 11. a cooling channel; 12. an inner roll body; 13. an outer roller layer; 14. an end plate; 15. a roll body cavity; 20. a reflow ring cavity; 30. a bearing; 50. a backwater through hole; 51. an annular gap; 52. a roll shaft through hole; 61. a water return cavity; 62. a blind hole; 71. a water return channel; 91. a water outlet; 92. and a water inlet.
Detailed Description
The invention is further described below in connection with specific embodiments and the accompanying drawings.
Example 1
The long roller of conticaster knockout water-cooling of this embodiment, as shown in fig. 1, including outer roll body 1 and interior roll body 12 that the bilayer cup jointed to and rotate through free side roller 5 and transmission side roller 6 respectively and connect in the bearing 30 of outer roll body 1 both sides, still including the water inlet tube 4 that runs through whole outer roll body 1 axially and rotate the rotary joint 9 who connects in free side roller 5 tip, wherein: the two ends of the inner roller body 12 are both fixed with end plates 14 and fixed in the outer roller body 1 through the two end plates 14, as shown in figures 1, 9 and 10, the two ports of the outer roller body 1 are both radially fixed with annular closed baffles 3, the fixed ends of the free side roller shaft 5 and the transmission side roller shaft 6 are respectively axially symmetrically fixed in the annular centers of the closed baffles 3 at the corresponding positions of the two ports of the outer roller body 1, and the free ends and the transmission ends are respectively in rotary connection with bearings 30 at the two sides of the outer roller body 1; roll shaft through holes 52 are axially reserved in the free side roll shaft 5 and the transmission side roll shaft 6; as shown in fig. 15, the rotary joint 9 has a conventional dual-channel structure, and a water outlet 91 and a water inlet 92 of respective channels are reserved at the left end.
Inside the roller body cavity 15, after the two ends of the water inlet pipe 4 sequentially axially penetrate out of the end plate 14 and the roller shaft through holes 52, the left end is communicated with the water inlet 92 through the support sleeve 7, and the support sleeve 7 is fixed in the free side roller shaft 5 of the bearing 30; an annular gap 51 is reserved between the roll shaft through hole 52 and the water inlet pipe 4; as shown in fig. 11, 12 and 13, slots 8 are reserved in the end plate 14 and the outer circle Zhou Jun of the support sleeve 7; as shown in fig. 3, 4, 5 and 6, a backwater through hole 50 is reserved radially between the free side roll shaft 5 and the transmission side roll shaft 6 and the roll shaft through hole 52, and the annular gap 51 is communicated with the slotted hole 8 reserved on the outer circumference of the support sleeve 7 and the water outlet 91 in sequence; as shown in fig. 1 and 2, in specific use, the water inlet 92, the support sleeve 7 and the water inlet pipe 4 are communicated to form a water inlet channel, an annular cooling channel 11 is formed between the outer roller layer 13 and the inner roller body 12 of the outer roller body 1, the slotted holes 8, the water return through holes 50, the annular gap 51 and the cooling channel 11 are communicated to form a water return channel 71, the water inlet and the water outlet are arranged on the same side, an interlayer is formed between the outer roller layer 13 and the inner roller body 12, the interlayer forms a water gap, cooling water can cool the rollers only through the water gap, a cold water loop and a hot water loop are stable, the cold water exchange and the hot water exchange are uniform, and the cooling effect can be effectively improved.
According to the water cooling method for the continuous casting machine knockout water-cooling long roller, after cooling water enters from the water inlet channel, in the process of returning through the water return channel 71, the outer roller layer 13 is cooled through the cooling channel 11, and finally, the water flows out from the water outlet pipe 91 reserved by the left rotary joint 9, so that the normal use of the roller at high temperature can be ensured, the service life of the roller can be prolonged, and the working environment can be improved. Meanwhile, the long roller structure is simple to process and manufacture, and the investment cost is saved.
Compared with the mode that cooling water is filled in a cavity cooling channel and the cooling roller, the water-cooling long roller can reduce the cooling water supply quantity on the premise of ensuring the cooling effect, can reduce the investment of a cooling water system for a large-scale production line, and is more friendly to the production process energy requirements of the large-scale production line along with the improvement of energy application and environmental requirements.
Example 2
The continuous casting machine knockout water-cooled long roller of this embodiment has the same basic structure as that of embodiment 1, and is different from or improved in that: as shown in fig. 1, 7 and 8, the annular perforated baffle 2 is radially fixed inside the outer roller body 1 between the closed baffle 3 and the end plate 14, the right end of the free side roller shaft 5 is fixed in the annular center of the perforated baffle 2, the outer circle Zhou Yuliu slot 8 of the perforated baffle 2 ensures that the free side roller shaft 5 and the transmission side roller shaft 6 are fixed more stably while the water return is smooth, and in addition, the two ends of the free side roller shaft 5 and the transmission side roller shaft 6 are convenient to be fixedly connected by welding.
The continuous casting machine knockout water-cooling long roller of the embodiment is suitable for being used for a roller diameter of more than 300mm and a length of more than 1m, even the length of the continuous casting machine knockout water-cooling long roller can reach 4-5m in the metallurgical industry, the thickness of an interlayer of a cooling channel 11 is not more than 20mm so as to control the cooling water supply quantity, the reasonable water gap thickness can ensure that cooling water introduced into a roller body is fully contacted with the inner surface of an outer roller layer 13, the cooling area is increased, heat transferred to the roller body by continuous casting knockout is taken away, the cooling water supply quantity can be reduced on the premise of ensuring the cooling effect, and the investment of a cooling water system can be reduced for a large-scale production line. The roller shaft through hole 52 of the transmission side roller shaft 6 is a blind hole, and a water return cavity 61 is reserved between the right end of the water inlet pipe 4 and the blind hole, so that the cooling effect on the bearing 30 is achieved. An annular backflow ring cavity 20 is reserved between the closed baffle 3 and the perforated baffle 2, and the cooling backwater is temporarily stored, so that the cooling backwater in the cooling channel 11 is kept full, and compared with the cooling channel 11, the liquid level of the cooling backwater in the backflow ring cavity 20 is easy to monitor.
The inner roll body 12 is welded to the end plate 14 at both ends thereof, and as shown in fig. 13, a plurality of grooves are uniformly distributed on the outer circumference of the end plate 14, and the shape thereof is not limited to the illustration. The end plate 14 is welded to the inner wall of the outer roll layer 13, and a cooling channel 11 is formed between the outer roll layer 13 and the inner roll body 12.
Because the space of the hollow cavity 15 of the inner roll body of the long roll is larger, the rotary joint 9 for water inlet and return is generally limited by the rotary structure of the inner roll body, the drift diameter is smaller, and the drift diameter of the water inlet pipe 4 in the outer roll body 1 can be matched with the rotary joint 9, so that the water inlet consistency is ensured. The end of the free side roll shaft 5 is provided with a mounting hole matched with the double-channel rotary joint 9, the rotary joint 9 is fixed on the end of the free side roll shaft 5, and the water inlet 92 of the rotary joint is connected with the water inlet pipe 4 in the roll body through the support sleeve 7. The outer circumference of the supporting sleeve 7 is uniformly provided with a plurality of semicircular grooves which not only play a role of connecting and fastening the water inlet pipe 4, but also divide the water inlet and the water return to form a water return channel 71.
One end of the water inlet pipe 4 in the outer roller body 1 is fixed in the support sleeve 7, passes through the roller shaft through hole 52 in the free side roller shaft 5 and then is welded on the end plate 14 in the outer roller body 1 for fixation, and the other end of the water inlet pipe 4 is welded and fixed with the transmission side end plate 14 in the outer roller body 1 and then is inserted into the blind hole 62 in the transmission side roller shaft 6.
The free side roller shaft 5 and the transmission side roller shaft 6 are welded and fixed with the outer roller body 1 through the sealing baffle plate 3 and the opening baffle plate 2. The circumference of the perforated baffle plate 2 is uniformly distributed with a plurality of semicircles to form a water return channel.
The number of the roller shaft through holes 52 radially opened in the free-side roller shaft 5 and the transmission-side roller shaft 6 is not limited to 1, and a plurality of symmetrical roller shaft through holes may be provided. The free side roller shaft 5 and the transmission side roller shaft 6 are fixed on the bearing seat through bearing inner rings and rotate together with the long roller body.
The water inlet 92 of the rotary joint, the inner cavity of the supporting sleeve 7 and the water inlet pipe 4 in the roller body form a stable water inlet channel together. The clearance between the axial roller shaft through holes 52 of the free side roller shaft 5 and the transmission side roller shaft 6 and the water inlet pipe 4, the radial water return through holes 50 of the roller shafts 5 and 6, the cooling channel 11 of the roller body and the Zhou Tong groove outside the support sleeve 7 form a water return channel together. The cooling long roller of the embodiment is provided with a stable water inlet and return channel, can form a stable cold and hot water loop, and can not generate channeling.
Compared with the common structural forms of adding a spiral guide plate in a roller body, internally welding and coiling a cooling channel, uniformly distributing a plurality of through water channels along the length direction of the roller body and the like, the continuous casting machine blank water cooling long roller and the water cooling method can ensure the cooling effect, and meanwhile, the manufacturing and processing are simpler and more convenient, and the welding deformation, the welding stress, the welding workload and the manufacturing cost are greatly reduced.
Example 3
The continuous casting machine knockout water-cooled long roller of this embodiment has the same basic structure as that of embodiment 2, and is different from or improved in that: as shown in fig. 14, the tail end of the transmission side roller shaft 6 is rotationally connected with the output shaft of the gear motor 10 through a coupling, the motor drives the whole roller body to rotate through a bearing 30, and the superposition effect of water flow during the rotation of the roller forms a spiral cooling effect on the roller surface, so that the cooling effect is more uniform. The water gap structure can reasonably control the cross section of the overflow and can improve the flow velocity of cooling water in unit area. The chain wheel can be installed at the tail end of the transmission side roll shaft 6 in the long roll driving, and the long roll driving can be driven by a chain, or a hollow shaft speed reducing motor is sleeved on the transmission side roll shaft 6 in various forms, compared with a water-cooling long roll with cooling water at two ends entering and exiting one by one, the long roll driving is wider in applicable driving form, and is also applicable to occasions of continuous casting machine equivalent type surface contact high-temperature material transportation.
The examples of the present invention are merely for describing the preferred embodiments of the present invention, and are not intended to limit the spirit and scope of the present invention, and those skilled in the art should make various changes and modifications to the technical solution of the present invention without departing from the spirit of the present invention.
Claims (7)
1. The utility model provides a continuous casting machine knockout water-cooling long roller, includes outer roll body (1) and interior roll body (12) that the bilayer cup jointed to and rotate through free side roller (5) and transmission side roller (6) respectively and be connected in bearing (30) of outer roll body (1) both sides, its characterized in that: still including the water inlet tube (4) and the rotary joint (9) of swivelling joint in free side roller (5) tip of axial run through whole outer roll body (1), wherein:
end plates (14) are fixed at two ends of the inner roller body (12) and are fixed inside the outer roller body (1) through the two end plates (14), annular sealing baffles (3) are radially fixed at two end ports of the outer roller body (1), fixed ends of the free side roller shaft (5) and the transmission side roller shaft (6) are respectively and axially symmetrically fixed in the annular centers of the sealing baffles (3) at corresponding positions at two ends of the outer roller body (1), and the free ends are respectively and rotatably connected with bearings (30) at two sides of the outer roller body (1); a roll shaft through hole (52) is axially reserved in each of the free side roll shaft (5) and the transmission side roll shaft (6);
a water outlet (91) and a water inlet (92) of the respective channels are reserved at the left end of the rotary joint (9);
inside the roller body cavity (15), after the two ends of the water inlet pipe (4) sequentially axially penetrate out of the end plate (14) and the roller shaft through hole (52), the left end is communicated with the water inlet (92) through the support sleeve (7), and the support sleeve (7) is fixed in the bearing (30);
an annular gap (51) is reserved between the roll shaft through hole (52) and the water inlet pipe (4); slots (8) are reserved in the outer circles Zhou Jun of the end plates (14) and the support sleeves (7); and a return water through hole (50) is reserved between the free side roll shaft (5) and the transmission side roll shaft (6) and the roll shaft through hole (52), and the annular gap (51) is sequentially communicated with a slotted hole (8) reserved in the excircle Zhou Jun of the support sleeve (7) and the water outlet (91).
2. The continuous casting machine bloom water-cooled long roll as set forth in claim 1, wherein: the novel roller is characterized in that an annular perforated baffle (2) is radially fixed inside the outer roller body (1) between the sealing baffle (3) and the end plate (14), the right end of the free side roller shaft (5) is fixed inside the annular center of the perforated baffle (2), and an excircle Zhou Yuliu slot hole (8) of the perforated baffle (2) is formed.
3. The continuous casting machine bloom water-cooled long roll as set forth in claim 1, wherein: an interlayer of a cooling channel (11) is formed between the outer roller body (1) and the inner roller body (12), and the thickness of the interlayer is not more than 20mm.
4. The continuous casting machine bloom water-cooled long roll as claimed in claim 3, wherein: the tail end of the transmission side roller shaft (6) is rotationally connected with the output shaft of the gear motor through a coupler.
5. The continuous casting machine bloom water-cooled long roll as set forth in claim 4, wherein: the roller shaft through hole (52) of the transmission side roller shaft (6) is a blind hole (62), and a water return cavity (61) is reserved between the right end of the water inlet pipe (4) and the blind hole (62).
6. The continuous casting machine bloom water-cooled long roll as set forth in claim 5, wherein: an annular backflow annular cavity (20) is reserved between the sealing baffle (3) and the opening baffle (2).
7. A water cooling method of a continuous casting machine bloom water-cooled long roll according to any one of claims 1 to 5, characterized by: the water inlet (92), the support sleeve (7) and the water inlet pipe (4) are communicated to form a water inlet channel, an annular cooling channel (11) is formed between the outer roller layer (13) of the outer roller body (1) and the inner roller body (12), the water outlet (91), each slot hole (8), the water return through hole (50), the annular gap (51) and the cooling channel (11) are communicated to form a water return channel (71), and after cooling water enters from the water inlet channel, the cooling water returns to the outer roller layer (13) through the water return channel (71) in-process, and the cooling channel (11) is used for cooling the outer roller layer (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311119934.2A CN117139577A (en) | 2023-08-31 | 2023-08-31 | Continuous casting machine knockout water-cooling long roller and water-cooling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311119934.2A CN117139577A (en) | 2023-08-31 | 2023-08-31 | Continuous casting machine knockout water-cooling long roller and water-cooling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117139577A true CN117139577A (en) | 2023-12-01 |
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ID=88886334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311119934.2A Pending CN117139577A (en) | 2023-08-31 | 2023-08-31 | Continuous casting machine knockout water-cooling long roller and water-cooling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117139577A (en) |
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2023
- 2023-08-31 CN CN202311119934.2A patent/CN117139577A/en active Pending
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