CN203625444U - Device for cooling furnace roller of hot-dip galvanizing wire heating furnace - Google Patents
Device for cooling furnace roller of hot-dip galvanizing wire heating furnace Download PDFInfo
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- CN203625444U CN203625444U CN201320781100.3U CN201320781100U CN203625444U CN 203625444 U CN203625444 U CN 203625444U CN 201320781100 U CN201320781100 U CN 201320781100U CN 203625444 U CN203625444 U CN 203625444U
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Abstract
The utility model discloses a device for cooling a furnace roller of a hot-dip galvanizing wire heating furnace, belonging to the technical field of hot-dip galvanizing wire production equipment. The device is used for effectively preventing cooling water in the furnace roller of a hot-dip galvanizing heating furnace from being blocked so as to avoid quality defects and accidents. The technical scheme of the device disclosed by the utility model is as follows: four arc-shaped grooves are formed in the edge of an end baffle of a stranding cage structure of the device and are circumferentially and uniformly formed along the end part of the stranding cage, and two ends of each arc-shaped groove correspond to two sides of a roller core support; springs in a rotary joint are positioned in an inner wall at the outer periphery of an inner hole of the rotary joint. According to the device disclosed by the utility model, a plurality of arc-shaped grooves are formed in the edge of a water baffle at the end part of the stranding cage structure, so that the resistance of the water baffle at the end part of the stranding cage to the water flow entering a cooling roller is obviously reduced, and the cooling efficiency is improved; the distribution of the plurality of springs can avoid a blocking phenomenon due to the resistance of the springs to the cooling water in the inner hole. The device for cooling the furnace roller of the hot-dip galvanizing wire heating furnace, disclosed by the utility model, effectively prevents the cooling water in the furnace roller from being blocked, avoids quality defects or accidental shutdown due to rapid rise of the temperature of the furnace roller, and improves the quality of strip steel.
Description
Technical field
The utility model relates to the heating furnace roller refrigerating unit that a kind of hot galvanizing line uses, and belongs to hot galvanizing line production unit technical field.
Background technology
The Main Function of hot galvanizing line process furnace is to make to be with steel in stove, to be heated to certain temperature, improves mechanical property with steel, makes to have with steel the active surface that a clean oxide-free exists simultaneously, and makes to be with steel sealing to enter in zinc pot, to carry out pot galvanize operation.
At present, hot galvanizing line process furnace is generally made up of several parts such as nonoxidizing heating section, radiator tube heating zone, soaking zone, jet cooling section, stove nose sections, the subject matter that process furnace exists is aborning that in updraft section furnace bottom roll, water coolant stops up, and makes a big impact to producing.
Particular problem is: if find that in updraft section furnace bottom roll, water coolant stops up, will be in roller moment form steam, steam accumulates that can to cause swivel joint to collapse to a certain extent de-, when serious, causes roll body explosion, causes a large amount of water coolants leakages.If furnace roller water coolant is revealed in stove, cause furnace wall, furnace lining to crack or subside and come off; If furnace roller water coolant is revealed outside stove, can be near the electric installation initiation electrical fault stop that exerts an influence; If furnace roller water coolant is revealed on band steel, can cause band steel to skid on tensioning roller and lose Zhang Yinqi parking.
Once there is furnace roller water blockoff phenomenon in production, just necessary stop supplies water coolant, after cutting off the water, the temperature of the body of roll sharply raises, can there is flexural deformation in various degree in the body of roll, can cause scuffing to the surface with steel, when serious, there is the phenomenons such as roll body fracture, sometimes also can cause shaft strength inequality simultaneously, bearing damage locking phenomenon occurs.If furnace roller can not continue to rotate after emergency shutdown, the body of roll will flexural deformation can not recover to rotate at short notice, causes quality accident to stop and processes, on the loss impact of hot galvanizing line output greatly.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of hot galvanizing line heating furnace roller refrigerating unit, this furnace roller refrigerating unit can effectively prevent that in hot galvanizing heating furnace updraft section furnace roller, water coolant stops up, and avoids furnace roller temperature sharply to raise and causes mass defect or emergency shutdown.
The technical scheme solving the problems of the technologies described above is:
A kind of hot galvanizing line heating furnace roller refrigerating unit, it is by swivel joint, be flexible coupling, fireproof sleeve, furnace bottom roll, ring flange, bearing support, step-down gear, motor composition, in furnace bottom roll, there is auger structure, auger and furnace bottom roll are fixed by end cutting ferrule, motor is connected with step-down gear, step-down gear connects furnace bottom roll, furnace bottom roll and auger structure are synchronously rotated, water-cooled tube is connected with auger, in auger structure, there is water vent, its improvements are, there is circular arc type groove everywhere at auger structure end baffle edge, circular arc type groove is along auger end circumference uniform distribution, the two ends of circular arc type groove are corresponding with the both sides that roller core supports.
Above-mentioned hot galvanizing line heating furnace roller refrigerating unit, spring in described swivel joint is 4-6,4-6 spring is arranged in the inwall of the endoporus periphery of swivel joint, along swivel joint circumference uniform distribution, spring outer diameter is 6 ~ 10mm, the connection internal thread at swivel joint two ends be connected outside screw and be respectively tapered thread, tapering is 2 ~ 4 °.
Above-mentioned hot galvanizing line heating furnace roller refrigerating unit, the aperture of 4 water vents of the roller core end plate circumference uniform distribution of described auger structure is for being 10 ~ 14mm.
The beneficial effects of the utility model are:
The water eliminator edge, end of furnace bottom roll auger structure of the present utility model adopts multiple circular groove opening designs, make water eliminator in playing current shock absorption, obviously reduce cage end water eliminator to entering the flow resistance of cooling roller inside, improved cooling efficiency; Swivel joint is evenly distributed on multiple springs the endoporus surrounding of swivel joint, can avoid the spring resistance to water coolant and latch up phenomenon of causing in endoporus; Swivel joint screw thread adopts conical design, can improve fastening effect.The utility model adopts above structural improvement, effectively prevent that in furnace roller, water coolant stops up, avoid furnace roller temperature sharply to raise and cause mass defect or emergency shutdown, improve band steel quality in kind, mechanical property and zinc layer structure are improved significantly, and have also improved rhythm of production simultaneously, have reduced production cost, there is significant economic benefit, in galvanization production line, have good application prospect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is auger end view;
Fig. 3 is swivel joint sectional view.
In figure, mark is as follows: swivel joint 1, be flexible coupling 2, fireproof sleeve 3, furnace bottom roll 4, ring flange 5, bearing support 6, step-down gear 7, motor 8, circular groove 9, roller core support 10, end baffle 11, roller core end plate 12, water vent 13, spring 14, outside screw 15, tubular shaft 16, bearing 17, internal thread 18.
Embodiment
The utility model by swivel joint 1, be flexible coupling 2, fireproof sleeve 3, furnace bottom roll 4, ring flange 5, bearing support 6, step-down gear 7, motor 8 form.
In figure, show, in furnace bottom roll 4, there is auger structure, fix by end cutting ferrule, motor 8 drives step-down gear 7, step-down gear 7 drives furnace bottom roll 4, furnace bottom roll 4 and auger structure are synchronously rotated, a water coolant part flows along auger structure, carrys out cool furnace bottom roller face, and a part flows into furnace bottom roll 4 inside from water vent 13 and carrys out cool furnace bottom roller 4, water-cooled tube entrance has DN25 valve, generally often open, have under meter at cooling water outlet, monitor furnace bottom roll 4 cooling water flows by under meter, inflow temperature is generally normal temperature, and leaving water temperature(LWT) is normally 40 ~ 60 ℃.
Cage structure is positioned at water-cooled tube reducing place, spiral be welded on roller core outer wall.The end baffle 11 of original auger structure is circular imperforation, hinders cooling water flow, easily causes water pipe to stop up, and the diameter of the water vent 13 on roller core end plate 12 is less, is of a size of 5 ~ 9mm, has directly affected flow rate.
In figure, show, there is circular arc type groove 9 everywhere at auger structure end baffle of the present utility model 11 edges, and circular arc type groove 9 is along auger end circumference uniform distribution, and the two ends of circular arc type groove 9 are corresponding with the both sides of roller core support 10.Each circular groove 9 is of a size of 4 ~ 7mm, and circular groove 9, compared with circular cage end baffle 11 structures that in the past designed, obviously reduces the resistance of auger structure end baffle 11 to water, increases furnace bottom roll 4 cooling water flows.The aperture of 4 water vents 13 of the roller core end plate 12 of auger structure is 10 ~ 14mm, increases the interior cooling water flow of furnace bottom roll 4, improves cooling performance.
In the endoporus of original swivel joint 1, there is the one-sided big spring of external diameter 35 ~ 45mm, when furnace roller water coolant passes through spring, because water temp is higher, easily form incrustation scale, be stacked into spring inner side, large to water coolant resistance, cause water coolant to stop up, fixing seal effect is relatively poor simultaneously.
In figure, show, spring 14 of the present utility model is 4-6,4-6 spring 14 is arranged in the inwall of the endoporus periphery of swivel joint 1, along swivel joint 1 circumference uniform distribution, spring 14 external diameters are 6 ~ 10mm, the distribution of this spring 14 can be avoided the resistance of spring 14 to water coolant and the latch up phenomenon that causes, has played fixing seal effect simultaneously
In figure, show, the connection internal thread 18 at swivel joint 1 two ends be connected outside screw 15 and be respectively tapered thread, tapering is 2 ° ~ 4 °, for fastening effect.
Claims (3)
1. a hot galvanizing line heating furnace roller refrigerating unit, it is by swivel joint (1), (2) are flexible coupling, fireproof sleeve (3), furnace bottom roll (4), ring flange (5), bearing support (6), step-down gear (7), motor (8) composition, furnace bottom roll has auger structure in (4), auger and furnace bottom roll (4) are fixed by end cutting ferrule, motor (8) is connected with step-down gear (7), step-down gear (7) connects furnace bottom roll (4), furnace bottom roll (4) and auger structure are synchronously rotated, water-cooled tube is connected with auger, in auger structure, there is water vent (13), it is characterized in that: there is circular arc type groove (9) everywhere at auger structure end baffle (11) edge, circular arc type groove (9) is along auger end circumference uniform distribution, the two ends of circular arc type groove (9) are corresponding with the both sides that roller core supports (10).
2. hot galvanizing line heating furnace roller refrigerating unit according to claim 1, it is characterized in that: the spring (14) in described swivel joint (1) is 4-6,4-6 spring (14) is arranged in the inwall of the endoporus periphery of swivel joint (1), along swivel joint (1) circumference uniform distribution, spring (14) external diameter is 6 ~ 10mm, the connection internal thread (18) at swivel joint (1) two ends be connected outside screw (15) and be respectively tapered thread, tapering is 2 ° ~ 4 °.
3. hot galvanizing line heating furnace roller refrigerating unit according to claim 2, is characterized in that: the aperture of 4 water vents (13) of described auger structure roller core end plate 12 circumference uniform distributions is for being 10 ~ 14mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320781100.3U CN203625444U (en) | 2013-12-03 | 2013-12-03 | Device for cooling furnace roller of hot-dip galvanizing wire heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320781100.3U CN203625444U (en) | 2013-12-03 | 2013-12-03 | Device for cooling furnace roller of hot-dip galvanizing wire heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203625444U true CN203625444U (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320781100.3U Expired - Fee Related CN203625444U (en) | 2013-12-03 | 2013-12-03 | Device for cooling furnace roller of hot-dip galvanizing wire heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203625444U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113042697A (en) * | 2021-03-09 | 2021-06-29 | 河南科技大学 | Cooling and traction composite device for continuous casting |
-
2013
- 2013-12-03 CN CN201320781100.3U patent/CN203625444U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113042697A (en) * | 2021-03-09 | 2021-06-29 | 河南科技大学 | Cooling and traction composite device for continuous casting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20161203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |