CN220931739U - Steel billet heating furnace water-cooling cantilever roller way - Google Patents
Steel billet heating furnace water-cooling cantilever roller way Download PDFInfo
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- CN220931739U CN220931739U CN202322590759.7U CN202322590759U CN220931739U CN 220931739 U CN220931739 U CN 220931739U CN 202322590759 U CN202322590759 U CN 202322590759U CN 220931739 U CN220931739 U CN 220931739U
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- roller
- water
- roller head
- fixed ring
- heating furnace
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- 238000001816 cooling Methods 0.000 title claims abstract description 27
- 238000010438 heat treatment Methods 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 title claims description 8
- 239000010959 steel Substances 0.000 title claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 8
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 239000000498 cooling water Substances 0.000 description 32
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process 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
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The utility model discloses a water-cooling cantilever roller way of a billet heating furnace, which comprises a roller head, a roller shaft and a water inlet pipe which are coaxially arranged in sequence from outside to inside, wherein a plurality of transverse holes are uniformly formed in the inner part of the side wall of the roller head along the circumference, water inlet grooves and water outlet grooves which are communicated with the two ends of the transverse holes are respectively formed in the two sides of the inner wall of the roller head, a cover plate and a ring plate are respectively fixed at the two ends of the roller head, a conical blind hole is formed in the center of the cover plate, a plurality of radial holes which are communicated with the conical blind hole are uniformly formed in the cover plate along the circumference, the outer ends of the radial holes are communicated with the water inlet grooves, a sealing cover is arranged at the end part of the roller shaft, the water outlet holes are formed in the sealing cover, the end part of the water inlet pipe is in interference fit with the conical blind hole after penetrating through the sealing cover, a fixed ring is fixed on the outer wall of the roller shaft, the fixed ring and the ring plate are connected through bolts, and the fixed ring and the ring plate are in sealing connection through mutually matched conical surfaces. In conclusion, the utility model has the advantages of good cooling effect, long service life and convenient operation and maintenance.
Description
Technical Field
The utility model relates to the technical field of metallurgical equipment, in particular to a water-cooled cantilever roller way of a billet heating furnace.
Background
In the production process of rolled steel, a heating furnace is used for heating steel billets, and the loading and unloading of the heating furnace generally adopts a side-in side-out mode, and at the moment, cantilever roller tables are required to be adopted in the furnace to finish the conveying of the steel billets. The existing cantilever roller way roller head is made of high-price heat-resistant alloy cast steel, the roller shaft is a thick-wall seamless steel tube, the water inlet pipe sends cooling water to the front end of the roller shaft, and then the cooling water returns from the hollow cavity of the roller shaft to finish cooling of the hollow roller shaft, but because the cooling water only circulates in the hollow shaft, the cooling water only can cool the hollow roller shaft, the roller head and the outer welded part of the roller shaft cannot be effectively cooled, in addition, the roller way can be subjected to high-temperature radiation of a hearth, the internal and external temperature difference and the thermal stress are large, the welding seam is easy to crack, the cooling effect of the cooling water is poor, the roller head is always in a red-hot state, and when the steel billet rubs and impacts the roller head, the roller head is cracked or even scrapped, so that the service cycle of the roller way is shortened; in addition, the roller head and the roller shaft can only be integrally replaced, so that the replacement difficulty is high, the maintenance cost is high, and the working intensity of workers is high. Therefore, the water-cooled cantilever roller way of the billet heating furnace, which has good cooling effect, long service life and convenient operation and maintenance, is researched and developed.
Disclosure of utility model
The utility model aims to provide the water-cooling cantilever roller way of the billet heating furnace, which has the advantages of good cooling effect, long service life and convenient operation and maintenance.
The utility model aims at realizing the method, the method comprises the steps of sequentially and coaxially arranging a roller head, a roller shaft and a water inlet pipe from outside to inside, uniformly processing a plurality of transverse holes along the circumference in the side wall of the roller head, respectively processing water inlet grooves and water outlet grooves which are communicated with the two ends of the transverse holes on the two sides of the inner wall of the roller head, respectively fixing cover plates and annular plates on the two ends of the roller head, processing tapered blind holes in the center of the cover plates, uniformly processing a plurality of radial holes which are communicated with the tapered blind holes along the circumference in the cover plates, communicating the outer ends of the radial holes with the water inlet grooves, processing water outlet holes on the sealing cover, penetrating the end part of the water inlet pipe through the sealing cover and then being in interference fit with the tapered blind holes, fixing rings are fixed on the outer wall of the roller shaft, and the annular plates are connected through bolts, and the fixing rings and the annular plates are in sealing connection through mutually matched tapered surfaces.
Further, a heat insulation layer is arranged on the outer wall of the water inlet pipe in the roll shaft.
Further, a cylindrical short section is arranged on the side face of the annular plate, an annular groove matched with the short section is machined on the side face of the fixed ring, and the end part of the short section extends into the annular groove and is connected through an annular gasket in a sealing mode.
Further, a spiral guide plate is arranged on the outer wall of the roll shaft in the roll head.
Further, a plurality of arc holes are uniformly distributed on the circumference of the fixed ring.
Further, a plurality of heat conducting rods are arranged on the inner wall of the roller head.
When the utility model is operated, the flow path of the cooling water is as follows: the cooling water flows reversely in the annular area, flows into the annular area between the roller shaft and the roller shaft through the water outlet hole and is discharged out of the cantilever roller way. In the flowing process, on one hand, the cooling water is divided into a plurality of strands in the cover plate, the heat on the cover plate is uniformly absorbed from the inside, and on the other hand, the cooling water is divided into a plurality of strands in the side wall of the roller head, the heat on the roller head is uniformly absorbed from the inside, on the other hand, the cooling water reversely flows in an annular area between the roller head and the roller shaft, and the heat on the cover plate and the roller head is absorbed again before flowing into the roller shaft, compared with the mode of cooling only once in the prior art and only cooling from the inner wall of the roller head, the cover plate and the roller head are successively cooled twice, and particularly, the cooling water can be cooled from the insides of the cover plate and the roller head, the cooling water can absorb and take away the heat more rapidly, so that the temperature of the cover plate and the roller head is reduced, the cooling effect is better, and the service lives of the cover plate and the roller head can be prolonged; in addition, the roller head is connected with the fixed ring through the bolts, and when the roller head needs to be replaced, the roller head can be pulled out of the roller shaft only by loosening the bolts, so that the replacement and maintenance are convenient, the problem that the roller head and the roller shaft can only be replaced integrally at present is solved, the replacement difficulty and the working intensity of workers are reduced, and the operation and maintenance cost is reduced. In conclusion, the utility model has the advantages of good cooling effect, long service life and convenient operation and maintenance.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of a cover plate according to the present utility model;
FIG. 3 is a schematic view of a retaining ring according to the present utility model;
In the figure: the heat-conducting device comprises a 1-roller head, a 2-roller shaft, a 3-water inlet pipe, a 4-transverse hole, a 5-water inlet groove, a 6-water outlet groove, a 7-cover plate, an 8-annular plate, a 9-conical blind hole, a 10-radial hole, an 11-sealing cover, a 12-water outlet hole, a 13-fixed ring, a 14-heat-insulating layer, a 15-short joint, a 16-annular groove, a 17-annular pad, an 18-spiral guide plate, a 19-arc hole and a 20-heat-conducting rod.
Detailed Description
The utility model is further described below with reference to the accompanying drawings, without limiting the utility model in any way, and any alterations or modifications based on the utility model are within the scope of the utility model.
As shown in figures 1-3, the utility model comprises a roller head 1, a roller shaft 2 and a water inlet pipe 3 which are coaxially arranged in sequence from outside to inside, wherein the positions among the roller head 1, the roller shaft 2 and the water inlet pipe 3 are of a tubular cavity structure, the roller head 1 is sleeved outside the roller shaft 2, the roller shaft 2 is sleeved outside the water inlet pipe 3, a plurality of transverse holes 4 are uniformly processed along the circumference inside the side wall of the roller head 1, the transverse holes 4 are arranged inside the side wall of the roller head 1, two sides of the inner wall of the roller head 1 are respectively processed with a water inlet groove 5 and a water outlet groove 6 which are communicated with two ends of the transverse holes 4, two ends of the roller head 1 are respectively fixed with a cover plate 7 and a ring plate 8, the center of the cover plate 7 is processed with a conical blind hole 9, the diameter of the opening end of the conical blind hole 9 is large, the diameter of the inner end of the conical blind hole is small, when the conical blind hole 9 is matched with the end of the water inlet pipe 3, the end of the conical blind hole is inserted into the conical blind hole, the conical blind hole is convenient to install, a plurality of radial holes 10 which are uniformly processed along the circumference inside the side wall of the cover plate 7, the outer ends of the radial holes 10 are communicated with the water inlet grooves 5, the sealing covers 11 are arranged at the ends of the roller shaft 2, the sealing cover 11, the sealing cover plates 11 are respectively, the sealing rings 11 are fixedly connected with the end faces 13 through the sealing rings 13 and the sealing rings 13, the sealing rings are fixedly connected with the end rings 13 through the sealing rings and the sealing rings 13, and the sealing rings 13 are fixedly connected with the sealing rings 13.
When the utility model is operated, the flow path of the cooling water is as follows: the cooling water flows in the annular area between the roller head 1 and the roller shaft 2 in the reverse direction, flows into the annular area between the roller shaft 2 and the water inlet pipe 3 through the water outlet hole 12 and is discharged out of the cantilever roller way. In the flowing process, on one hand, the cooling water is divided into a plurality of strands in the cover plate 7, the heat on the cover plate 7 is uniformly absorbed from the inside, and on the other hand, the cooling water is divided into a plurality of strands in the side wall of the roller head 1, the heat on the roller head 1 is uniformly absorbed from the inside, on the other hand, the cooling water reversely flows in the annular area between the roller head 1 and the roller shaft 2, and the heat on the cover plate 7 and the roller head 1 is absorbed again before flowing into the roller shaft 2, compared with the mode that the cooling water is only cooled once in the prior art and only cooled from the inner wall of the roller head 1, the cover plate 7 and the roller head 1 are cooled twice in sequence, and particularly the cooling water can be cooled from the inside of the cover plate 7 and the roller head 1, so that the cooling water can absorb and take away the heat more rapidly, the temperatures of the cover plate 7 and the roller head 1 are reduced, the cooling effect is better, and the service lives of the cover plate 7 and the roller head 1 can be prolonged; in addition, the roller head 1 is connected with the fixed ring 13 through the bolts, when the roller head 1 needs to be replaced, the roller head 1 can be pulled out of the roller shaft 2 only by loosening the bolts, the replacement and maintenance are convenient, the problem that the roller head 1 and the roller shaft 2 can only be replaced integrally at present is solved, the replacement difficulty and the labor intensity of workers are reduced, and the operation and maintenance cost is reduced.
When the utility model is implemented, the heat insulation layer 14 is arranged on the outer wall of the water inlet pipe 3 in the roll shaft 2, after the cooling water absorbs the heat emitted by the roll head 1 and the cover plate 7, the temperature of the cooling water rises to form hot water, the hot water flows into an annular area between the roll shaft 2 and the water inlet pipe 3 through the water outlet 12, at this time, the cooling water with lower temperature in the water inlet pipe 3 can absorb the heat in the hot water in the annular area, and further the temperature of the cooling water is raised, so that the cooling efficiency of the cooling water on the cover plate 7 and the roll head 1 is reduced, the heat insulation layer 14 is arranged on the water inlet pipe 3 to avoid the problems, the heat exchange of the cooling water in the water inlet pipe 3 and the hot water outside the water is stopped, and the cooling efficiency of the cooling water on the cover plate 7 and the roll head 1 is ensured.
The side of the ring plate 8 is provided with a cylindrical short section 15, the side of the fixed ring 13 is provided with a ring groove 16 matched with the short section 15, the end part of the short section 15 extends into the ring groove 16 and is in sealing connection through a ring gasket 17.
Be provided with spiral guide plate 18 on the roller 2 outer wall in roller head 1, the cooling water gets into the annular region between roller head 1 and the roller 2 from play water recess 6, discovers in the in-service use, and after the cooling water was gathered in above-mentioned annular region, partial region had the problem that the cooling water was detained, caused the cooling dead angle, set up spiral guide plate 18 in order to avoid this problem for the cooling water can spiral flow in this annular region, and then eliminates the cooling dead angle, improves cooling efficiency.
In the utility model, a plurality of arc holes 19 are uniformly distributed on the circumference of the fixed ring 13, and the ring plate 8 and the fixed ring 13 are sealed by mutually matched conical surfaces, but in the actual use process, the fact that the arc holes 19 are processed on the fixed ring 13 for preventing bolts from obstructing the rotation of the ring plate 8 so that the bolts can slide in the arc holes 19 and further ensure that the ring plate 8 can rotate due to certain damage or deformation of the conical surfaces on the ring plate 8 and the fixed ring 13 and the reduction of the sealing performance between the ring plate 8 and the fixed ring 13 caused by the extension of the service time is found.
Be provided with a plurality of heat conduction poles 20 on the inner wall of roller head 1, heat conduction pole 20 adopts current heat conduction rate faster material to make, can transfer the heat on the roller head 1 fast, improves the radiating area of heat on the roller head 1, improves the area of contact and the heat exchange efficiency of roller head 1 and cooling water, and then improves the cooling efficiency of roller head 1, has better cooling effect.
Claims (6)
1. The utility model provides a steel billet heating furnace water-cooling cantilever roll table, includes from outer to interior roller head (1), roller (2) and inlet tube (3) that coaxial setting in proper order, wherein, the inside of roller head (1) lateral wall evenly processes along circumference has a plurality of cross holes (4), and the both sides of roller head (1) inner wall are processed respectively have inlet groove (5) and outlet groove (6) with cross hole (4) both ends intercommunication, the both ends of roller head (1) are fixed with apron (7) and annular slab (8) respectively, and the center processing of apron (7) has toper blind hole (9), and the apron (7) is interior to evenly process along circumference have a plurality of radial holes (10) with toper blind hole (9) intercommunication, the outer end and inlet groove (5) of radial hole (10) communicate, the tip of roller (2) is provided with sealed lid (11), seal lid (11) are processed with outlet hole (12) after passing through cross seal lid (11), the tip of inlet tube (3) cooperate with toper blind hole (9), be fixed with solid fixed ring (13) and fixed ring (13) between fixed ring (13) and the fixed ring (8) through the fixed connection between the conical surface each other through the fixed ring (13).
2. The water-cooling cantilever roller way of the billet heating furnace according to claim 1, wherein a heat insulation layer (14) is arranged on the outer wall of the water inlet pipe (3) in the roller shaft (2).
3. The water-cooling cantilever roller way of the billet heating furnace according to claim 1, wherein a cylindrical short section (15) is arranged on the side surface of the annular plate (8), an annular groove (16) matched with the short section (15) is processed on the side surface of the fixed ring (13), and the end part of the short section (15) stretches into the annular groove (16) and is connected with the annular groove in a sealing way through an annular gasket (17).
4. The water-cooling cantilever roller way of the billet heating furnace according to claim 1, wherein a spiral guide plate (18) is arranged on the outer wall of a roller shaft (2) in the roller head (1).
5. The water-cooling cantilever roller way of the billet heating furnace according to claim 1, wherein a plurality of arc-shaped holes (19) are uniformly distributed on the circumference of the fixed ring (13).
6. The water-cooling cantilever roller way of the billet heating furnace according to claim 1, wherein a plurality of heat conducting rods (20) are arranged on the inner wall of the roller head (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322590759.7U CN220931739U (en) | 2023-09-25 | 2023-09-25 | Steel billet heating furnace water-cooling cantilever roller way |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322590759.7U CN220931739U (en) | 2023-09-25 | 2023-09-25 | Steel billet heating furnace water-cooling cantilever roller way |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220931739U true CN220931739U (en) | 2024-05-10 |
Family
ID=90935278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322590759.7U Active CN220931739U (en) | 2023-09-25 | 2023-09-25 | Steel billet heating furnace water-cooling cantilever roller way |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220931739U (en) |
-
2023
- 2023-09-25 CN CN202322590759.7U patent/CN220931739U/en active Active
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