CN202239531U - Cooling water passage of large-sized shaped blank continuous casting crystallizer - Google Patents
Cooling water passage of large-sized shaped blank continuous casting crystallizer Download PDFInfo
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- CN202239531U CN202239531U CN2011201205886U CN201120120588U CN202239531U CN 202239531 U CN202239531 U CN 202239531U CN 2011201205886 U CN2011201205886 U CN 2011201205886U CN 201120120588 U CN201120120588 U CN 201120120588U CN 202239531 U CN202239531 U CN 202239531U
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Abstract
The utility model belongs to devices for cooling casting blanks or casting molds, and particularly relates to a copper plate cooling device of a blank continuous casting crystallizer. The cooling water passage is characterized in that a wide side copper plate is provided with web plate water channels, R-corner water channels, inclined plane water channels, flange inside corner water holes and flange top end water holes according to shape of the copper plate and the characteristics of the hot surface heat flow, the water channels are uniformly distributed at the non-corner site, the water channels are dense at the R-corner site, and the number of the water holes at the concave corner site is less; and a cooling water tank is arranged on the outer side of a narrow side copper plate. In the utility model, the cooling water passage is configured by regions, the number is reduced, the diameter of the water channels is reduced, and the processing load is reduced; the water channels are configured reasonably, the temperature peak at the R-corner site is eliminated, the temperature gradient is reduced, the cooling intensity at the top end of the flange is weakened, the overall temperature of the copper plate tends to be uniform, the working environment of the copper plate and the heat transfer conditions of the casting blank are improved, the cooling effect is good, and the water is saved; the deformation and wear of the copper plate are reduced, and the service life of the copper plate is prolonged; and the surface quality of the casting blank is greatly improved, the blank yield is increased, and the smooth continuous casting is ensured.
Description
Technical field
The utility model belongs to the device of cooling casting base or casting mold, relates in particular to casting for shaped blank continuous crystallizer copper plate cooling device.
Background technology
Special-shaped base is a best blank of producing H shaped steel as a kind of near net shape continuous casting product, adopts special-shaped continuous casting billet rolling H shaped steel significantly to reduce production costs, and improves mill bar quality.The casting for shaped blank continuous crystallizer internal cavity is " H " type, and molten steel continuous pouring thus becomes special-shaped base.In casting process, cooling water is taken away the heat of molten steel in the crystallizer through the cooling-water duct of digging on the copper plate of crystallizer, makes the molten steel continuously cooling and freezing that injects crystallizer become to have the good base shell of certain thickness, intensity and surface quality.Cooling-water duct on the copper plate of crystallizer all has crucial influence for the extraction of molten steel heat in the crystallizer, the distortion, wearing and tearing etc. of surface quality and crystallizer when the base shell solidifies; Particularly, because special-shaped base section configuration is complicated, each point radiating condition difference is big, causes the wearing and tearing of cc billet surface quality defective and copper plate of crystallizer hot side easily.Hence one can see that, and the setting of special-shaped billet crystallizer cooling-water duct is carried out and reduce production costs all being of great significance for raising slab quality, the production of assurance continuous casting smoothly.
Be used for the special-shaped base that big H shaped steel is produced now, web length 650-850mm, web thickness 90-140mm, the wide 350-500mm in the edge of a wing, the transversal face length 800-1000mm of the crystallizer of use, wide 450-600mm, crystallizer is 700-1000mm along the length of throwing direction.The crystallizer that is used to pour into a mould this special-shaped base is to be connected and composed by two wide copper coins and two narrow copper plates; The hot side at the web of wide copper coin, R angle and place, inclined-plane, the edge of a wing evenly is provided with annular water seam; This annular water seam distribution uniform, and each water seam and copper coin hot side apart from approximately equal; Top, edge of a wing outer wall evenly is provided with Rectangular Water Trough; The narrow copper plate outer wall evenly is provided with Rectangular Water Trough.The identical setting of the cooling water channel of two wide copper coins, the tank of two narrow copper plates is provided with unanimity.
Its defective is; Because special-shaped base section configuration is complicated; Temperature fluctuation during cast in wide copper coin cross section of crystallizer rises and falls big; R angular zone hot-fluid is concentrated and is caused temperature too high, and the corner on top, the edge of a wing makes that because of receiving two dimension cooling appearance temperature low ebb copper plate of crystallizer and strand focus occurs simultaneously or localized temperature gradients is excessive.The focus easy abrasion appears in the copper coin hot side, the local easy deformation that thermograde is excessive, and the two all can reduce the service life of crystallizer; Strand focus occurs or localized temperature gradients is excessive, can worsen the heat-transfer effect of strand, is easy to generate the cc billet surface quality defective, even influences continuous casting production and carry out smoothly.
Summary of the invention
In order to overcome the defective that present technology exists, the purpose of the utility model provides a kind of big casting for shaped blank continuous crystallizer cooling-water duct, guarantees that in casting process the copper plate of crystallizer hot-face temperature is evenly distributed; Molten steel forms even base shell in crystallizer; Avoid copper coin hot side wearing and tearing and distortion, increase the service life, reduce or avoid strand to produce surface quality defect; Improve billet yield, help continuous casting production and carry out smoothly.
Big casting for shaped blank continuous crystallizer cooling-water duct, its crystallizer is to be connected and composed by two wide copper coins and two narrow copper plates, on wide copper coin and the narrow copper plate cooling-water duct is set; Be connected with the crystallizer water inlet pipe and water outlet pipe; Characteristics be wide copper coin according to copper plate of crystallizer shape and hot side heatflow characteristics, the web place is provided with web annular water seam (being called for short web water seam down), place, R angle is provided with R square ring shape water seam (being called for short R angle water seam down); Place, inclined-plane, the edge of a wing is provided with inclined-plane, edge of a wing annular water seam (being called for short inclined-plane water seam down); Edge of a wing top end is provided with edge of a wing interior angle cooling water hole and top, edge of a wing cooling water hole, and web does not have corner's water seam and is evenly distributed, and place, the R angle water seam of protrusion is intensive; The spill corner water hole on top, the edge of a wing is less, so that wide copper coin cooled off; The narrow copper plate outer wall evenly is provided with the rectangle bosh, and narrow copper plate is cooled off.
The utility model further improves, and described web water seam evenly is provided with, and the water kerf spacing is bigger, and distance is close with the water nip clearance between water seam and copper coin hot side; Described inclined-plane water nip clearance is greater than water seam and copper coin hot side distance; Described R angle water nip clearance is less than web water nip clearance, and also less than water seam and copper coin hot side distance, water seam in R angle is bigger with web water seam or inclined-plane water kerf spacing; Described edge of a wing interior angle cooling water hole digression portion and copper coin hot side distance are bigger, and top, edge of a wing cooling water hole is near from copper coin hot side distance, and is far away from the bight of both sides, top, the edge of a wing.To keep the copper coin hot-face temperature to be evenly distributed.
The utility model further improves; Described web water seam is made up of 6-8 water seam, and water seam in R angle is made up of 6-8 water seam, and water seam in inclined-plane is made up of 4-6 water seam; Interior angle water hole, the edge of a wing is made up of 2 apertures, and water hole, top, the edge of a wing (11) is made up of 4 water holes.
The utility model further improves; Described web water seam, R angle water seam and inclined-plane water seam combine by circular hole and the current limliting bar of plug-in mounting dug on wide copper coin; The vertical copper coin cross section of circular hole, the current limliting shank diameter is less than the circular hole internal diameter, and the current limliting bar is fixed in the circular hole with one heart; The looping chamber is the water seam between circular hole and the current limliting bar, and the cooling water percolation is taken away heat in the water seam.
The utility model further improves, and described current limliting bar is the conical stock of reducing, changes the degree of depth that the current limliting bar inserts circular hole, can adjust cooling water flow.
Described cooling water hole is a circular port, and cooling water hole and bosh are all perpendicular to the cross section of copper coin.
Compared with prior art, advantage is: cooling-water duct is according to copper coin shape and hot side hot-fluid characteristics subregion configuration cooling water seam and water hole, and water seam diameter reduces, and quantity reduces, and reduces machining amount; Web evenly is provided with the water seam, and place, R angle is provided with intensive water seam, and top, the edge of a wing is provided with the water hole, and configuration rationally; Cooling water is fully used, and R angle hot side appearance temperature peak value has been eliminated in using water wisely; Reduced near the thermograde in copper coin R angle, the intensity of cooling on the top, the edge of a wing of having weakened has promoted the temperature trough that the two dimension cooling of two ends, the edge of a wing produces; The copper coin bulk temperature is tending towards evenly, has improved copper coin working environment and strand heat transmission conditions, good cooling results; Reduce or avoid copper coin distortion and wearing and tearing, increase the service life; Cc billet surface quality significantly improves, and has improved billet yield, has reduced production cost, and the production of assurance continuous casting is carried out smoothly.
Description of drawings
The contrast accompanying drawing is described further the utility model below.
Fig. 1 is big casting for shaped blank continuous mold structure stereogram.
Fig. 2 is big casting for shaped blank continuous crystallizer cooling water passage structure sketch map.
Fig. 3 is the A portion enlarged drawing of Fig. 2.
Fig. 4 is the water seam sketch map of Fig. 3.
The specific embodiment
Can find out by Fig. 1; Big casting for shaped blank continuous crystallizer is connected and composed by two wide copper coins 1 and two narrow copper plates 2; Inner chamber is " H " shape; Wide the special-shaped relatively base of copper coin hot side is divided into web district 3, R angular region 4, edge of a wing beveled region 5,6 four zones, top, the edge of a wing, and molten steel flows into " H " shape inner chamber, and continuous casting becomes base.
Fig. 2 is big casting for shaped blank continuous crystallizer cross sectional representation, can be found out by Fig. 2, and on wide the copper coin, the web water seam 7 that web 3 zones are provided with is made up of 6-8 water seam; The R angle water seam 8 that establish in 4 zones, R angle is made up of 6-8 water seam; The inclined-plane water seam 9 that establish in 5 zones, inclined-plane, the edge of a wing is made up of 4-6 water seam; 2 edge of a wing interior angle cooling water holes 10 are set 6 zones, top, the edge of a wing and cooling water hole 11, two wide copper coins in top, 4 edges of a wing are provided with equally.Two narrow copper plate 2 outer walls are evenly established bosh 14.Specifically be provided with as follows:
Web water stitch 7 edges far from the copper coin hot side apart from 25-35mm, distance is 30-50mm between the adjacent two water seam.
It is 20-30mm far from the copper coin hot side that R angle water stitches 8 edges, and adjacent two water kerf spacings are 5-15mm.
Inclined-plane water stitches 9 edges and is 25-35mm far from copper coin hot side distance, and the distance between the two water seam is 15-30mm.
Cooling water hole 11 edges in top, the edge of a wing are 20-25mm far from copper coin hot side distance, and two cooling water distance between borehole are 4-8mm, and the distance that leaves the copper coin right side edge is 70-90mm.
Can find out that by Fig. 3, Fig. 4 annular water seam is the water seam by digging at the circular hole 12 of copper coin and the current limliting bar 13 looping cavitys of plug-in mounting.The diameter 15-25mm of circular hole, current limliting bar 13 is conical stock, diameter maximum 10-20mm.
Claims (5)
1. big casting for shaped blank continuous crystallizer cooling-water duct; Crystallizer is connected and composed by two wide copper coin (1) and two narrow copper plates (2), on wide copper coin and the narrow copper plate cooling-water duct is set, and is connected with the crystallizer water inlet pipe and water outlet pipe; It is characterized in that wide copper coin is according to copper coin shape and hot side heatflow characteristics; Web (3) locates to be provided with web annular water seam (7), and R square ring shape water seam (8) is located to be provided with in R angle (4), and inclined-plane, edge of a wing annular water seam (4) is located to be provided with in inclined-plane, the edge of a wing (5); Edge of a wing interior angle cooling water hole (10) and top, edge of a wing cooling water hole (11) are located to be provided with in top, the edge of a wing (6); Web does not have corner's water seam and is evenly distributed, and place, the R angle water seam of protrusion is intensive, and the spill corner water seam on top, the edge of a wing is less; Narrow copper plate (2) outer wall all is provided with rectangle bosh (14).
2. big casting for shaped blank continuous crystallizer cooling-water duct according to claim 1 is characterized in that institute's web water seam (7) evenly is provided with, and the water kerf spacing is bigger, and distance is close with the water nip clearance between water seam and copper coin hot side; Distance is greater than water seam and copper coin hot side distance between described inclined-plane water seam (9); Distance is less than web water nip clearance between described R angle water seam (8); Also less than distance between water seam and copper coin hot side; R angle water seam is bigger with web water seam or inclined-plane water nip clearance; Said edge of a wing interior angle cooling water hole (10) digression portion and copper coin hot side distance are bigger, and top, edge of a wing cooling water hole (11) is near from copper coin hot side distance, and is far away from the bight of both sides, top, the edge of a wing.
3. big casting for shaped blank continuous crystallizer cooling-water duct according to claim 1; It is characterized in that described web water seam (7), R angle water seam (8), inclined-plane water seam (9) combine by circular hole (12) and the current limliting bar (13) of plug-in mounting dug on wide copper coin (1); The vertical copper coin cross section of circular hole (12), the current limliting shank diameter is less than the circular hole internal diameter, and the current limliting bar is fixed in the circular hole with one heart; Looping chamber between circular hole and the current limliting bar, i.e. water seam.
4. big casting for shaped blank continuous crystallizer cooling-water duct according to claim 1 is characterized in that described current limliting bar (12) is the conical stock of reducing.
5. big casting for shaped blank continuous crystallizer cooling-water duct according to claim 1; It is characterized in that described web water stitches (7) and is made up of 6-8 water seam; R angle water seam (8) is made up of 6-8 water seam; Inclined-plane water seam (9) is made up of 4-6 water seam, and edge of a wing interior angle cooling water hole (10) is made up of 2 water holes, and water hole, top, the edge of a wing (11) is made up of 4 water holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201205886U CN202239531U (en) | 2011-04-22 | 2011-04-22 | Cooling water passage of large-sized shaped blank continuous casting crystallizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201205886U CN202239531U (en) | 2011-04-22 | 2011-04-22 | Cooling water passage of large-sized shaped blank continuous casting crystallizer |
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| Publication Number | Publication Date |
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| CN202239531U true CN202239531U (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011201205886U Expired - Fee Related CN202239531U (en) | 2011-04-22 | 2011-04-22 | Cooling water passage of large-sized shaped blank continuous casting crystallizer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962415A (en) * | 2012-12-14 | 2013-03-13 | 莱芜钢铁集团有限公司 | H-shaped combined crystallizer |
| CN102974782A (en) * | 2012-12-14 | 2013-03-20 | 莱芜钢铁集团有限公司 | H-shaped tubular mold |
-
2011
- 2011-04-22 CN CN2011201205886U patent/CN202239531U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962415A (en) * | 2012-12-14 | 2013-03-13 | 莱芜钢铁集团有限公司 | H-shaped combined crystallizer |
| CN102974782A (en) * | 2012-12-14 | 2013-03-20 | 莱芜钢铁集团有限公司 | H-shaped tubular mold |
| CN102974782B (en) * | 2012-12-14 | 2015-01-21 | 莱芜钢铁集团有限公司 | H-shaped tubular mold |
| CN102962415B (en) * | 2012-12-14 | 2015-05-13 | 莱芜钢铁集团有限公司 | H-shaped combined crystallizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20140422 |