CN202070730U - Metering nozzle gas protection pouring quick-change device - Google Patents
Metering nozzle gas protection pouring quick-change device Download PDFInfo
- Publication number
- CN202070730U CN202070730U CN2011201699706U CN201120169970U CN202070730U CN 202070730 U CN202070730 U CN 202070730U CN 2011201699706 U CN2011201699706 U CN 2011201699706U CN 201120169970 U CN201120169970 U CN 201120169970U CN 202070730 U CN202070730 U CN 202070730U
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- filling pipe
- pipe end
- wireway
- location
- hole
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Abstract
The utility model provides a metering nozzle gas protection pouring quick-change device, which comprises an upper nozzle, a lower nozzle, an upper guiding plate and a lower guiding plate. An annular groove is arranged on a contacting surface of the upper nozzle and the lower nozzle. The upper nozzle is provided with an air guiding hole which is communicated with the annular groove. The upper nozzle is provided with a counter bore which is communicated with the air guiding hole. A locating hole is arranged on the upper guiding plate matching with the upper nozzle, and a locating air guiding tube is installed inside the locating hole. One end of the locating air guiding tube is arranged inside the upper nozzle and matches with the counter hole, an air hole of the locating air guiding tube is communicated with the air guiding hole, and the locating air guiding hole is provided with a mechanism for preventing the locating air guiding tube from axially moving. The upper nozzle and the lower nozzle adopt air sealing, simultaneously an air passage is smooth, and sealed portion is leakage-free, thereby avoiding air from entering liquid steel and further improving quality of products.
Description
Technical field
The utility model relates to the metering nozzle fast replacing device that iron and steel enterprise uses in continuous casting is produced, be a kind of metering nozzle gas shield cast fast replacing device.
Background technology
The applicant once improved at existing tundish metering nozzle fast replacing device in 2008; air and molten steel about the mode of employing gas shield makes between the mouth of a river are isolated; thereby expection reduces the oxide in the molten steel, improves the quality of products, for the production of high-quality steel provides high-quality to guarantee.Yet; the deficiency that this gas shield cast fast replacing device is in use found is comparatively obvious: because the passage that passage of offering on the upper guide plate and filling pipe end are offered; it is the connection between Kong Yukong; when installing a plurality of parts such as the mouth of a river and upper guide plate; be difficult to guarantee the passage of upper guide plate and the passage close communication of filling pipe end; therefore; gas leak phenomenon often takes place; protective gas is normally charged in the groove of filling pipe end end face; gas can't play sealing function; in this case, the difficult quality that improves product made from steel that reaches.
The utility model content
The purpose of this utility model is, a kind of metering nozzle gas shield cast fast replacing device is provided, and it adopt air seal between the mouth of a river up and down; make gas passage simultaneously smoothly; sealing place is air tight, thereby avoids air to enter in the molten steel, further improves the quality of product.
The utility model for achieving the above object; be achieved through the following technical solutions: metering nozzle gas shield cast fast replacing device; comprise filling pipe end; the following mouth of a river; upper guide plate and bottom guide; offer annular groove on filling pipe end and the contacted surface, the following mouth of a river; offer gas port on the filling pipe end; gas port communicates with annular groove; offer counterbore on the filling pipe end; counterbore is connected with gas port; with upper guide plate that filling pipe end cooperates on offer locating hole, the location wireway is installed in the locating hole, an end of location wireway is inserted in the filling pipe end; and match with counterbore; the pore of location wireway is communicated with gas port, is provided with on the wireway of location and prevents its axially movable mechanism.Described location wireway prevents that its axially movable mechanism from being, on the outer wall of location wireway external screw thread is set, and on the locating hole hole wall internal thread is set, and the external screw thread of location wireway matches with the internal thread on the locating hole hole wall.Counterbore is a bellmouth, and the termination that the location wireway is inserted filling pipe end is a cone.The cross sectional shape of annular groove constitutes by facing directly with the inclined-plane, face directly with the inclined-plane in bottom extremity, face directly near filling pipe end through hole one side, the inclined-plane is near outer wall one side of filling pipe end.The inlet end of gas port is positioned on the periphery of boss of filling pipe end, and gas port is located in the same horizontal plane with the location wireway.Submersed nozzle is installed in lower end, the following mouth of a river, offer plug hole on the submersed nozzle, submersed nozzle top is provided with bowl bodies, bowl bodies has inner chamber, the bowl bodies inner chamber communicates with plug hole, groove is offered in the cavity wall border in the bowl bodies, offers passage on the bowl-shape body of submersed nozzle, and passage is connected with groove.
The technical solution of the utility model can realize making the air seal between the filling pipe end and the following mouth of a river, from the back being installed to all processes that uses, can remain closely cooperating of filling pipe end or submersed nozzle passage and inlet channel, any gas leak phenomenon does not appear, thereby really avoided air to enter the phenomenon that makes trapped oxide in the steel behind the molten steel, improved the quality of product made from steel etc. by gap, the mouth of a river up and down.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model; Accompanying drawing 2 is I portion structure for amplifying schematic diagrames in the accompanying drawing 1; Accompanying drawing 3 is II portion structure for amplifying schematic diagrames in the accompanying drawing 1; Accompanying drawing 4 is structure for amplifying schematic diagrames of filling pipe end 9 in the accompanying drawing 1.
The specific embodiment
Fast replacing device described in the utility model, comprise filling pipe end 9, the following mouth of a river 7, upper guide plate 2 and bottom guide 4, offer annular groove 15 on filling pipe end 9 and the 7 contacted surfaces, the following mouth of a river, offer gas port 14 on the filling pipe end 9, gas port 14 communicates with annular groove 15, offer counterbore 17 on the filling pipe end 9, counterbore 17 is connected with gas port 14, with upper guide plate 2 that filling pipe end 9 cooperates on offer locating hole 16, location wireway 12 is installed in the locating hole 16, one end of location wireway 12 is inserted in the filling pipe end 9, and match with counterbore 17, the pore of location wireway 12 is communicated with gas port 14, locatees that setting prevents its axially movable mechanism on the wireway 12.The utility model said structure has reached advantage described in the utility model, and wherein, described location wireway 12 1 ends are inserted in the filling pipe end 9, and the other end is connected with gas pipeline.Can there be multiple mode in its axially movable mechanism that prevents that is provided with on the wireway 12 of location: for example: internal and external threads cooperation, nut and threaded engagement, through hole and draw-in groove cooperate or the like, in a word, are standard so that location wireway 12 can not move axially.The preferred scheme of the utility model is: location wireway 12 prevents that its axially movable mechanism from being, on the outer wall of location wireway 12, external screw thread 13 is set, on locating hole 16 hole walls internal thread is set, the external screw thread of location wireway 12 matches with the internal thread on locating hole 16 hole walls, thereby location wireway 12 is directly entered in the filling pipe end 9, and can reach with counterbore 17 and closely cooperate, this structure is easy to make and install, and manufacturing cost is relatively low.
The cross sectional shape of annular groove 15 described in the utility model by face directly 18 and inclined-plane 19 constitute, face directly 18 and inclined-plane 19 in bottom extremity, face 18 directly near filling pipe end 9 through holes one sides, inclined-plane 19 is near outer wall one side of filling pipe ends 9.The utility model becomes to face directly structure with the inclined-plane with the Cross section Design of annular groove 15, its advantage is to stop that with facing 18 directly the gas in the groove flows to the through hole of filling pipe end 9, prevent that gas from entering in the molten steel, inclined-plane 19 is used for the flows outside of water conservancy diversion gas along annular groove 15, guarantees that further the gas in the annular groove 15 does not flow in the molten steel.
The inlet end of gas port 14 described in the utility model is positioned on the periphery of boss 24 of filling pipe end 9, gas port 14 is located in the same horizontal plane with location wireway 12, this structure further guarantees unobstructed and tight connection of airway of upper guide plate 2 and filling pipe end 9, and is easy to process etc.
Submersed nozzle 20 is installed in 7 lower ends, the mouth of a river down described in the utility model, offer plug hole on the submersed nozzle 20, submersed nozzle 20 tops are provided with bowl bodies, bowl bodies has inner chamber, the bowl bodies inner chamber communicates with plug hole, groove 21 is offered in the cavity wall border in the bowl bodies, offer passage 22 on submersed nozzle 20 bowl bodies, passage 22 is connected with groove 21, airway structure described in the utility model is applicable to submersed nozzle, make between the submersed nozzle and the following mouth of a river to seal, can finish from the tundish to the crystallizer sealing molten steel.
Among the figure, the 1st, installing plate, the 3rd, gas spring, the 5th, antisplash cover set bolt, the 6th, antisplash cover, the 8th, brick cup, the 10th, guide pillar, the 11st, guide pillar nut.
Claims (6)
1. fast replacing device is poured into a mould in the metering nozzle gas shield; comprise filling pipe end (9); the following mouth of a river (7); upper guide plate (2) and bottom guide (4); offer annular groove (15) on filling pipe end (9) and the contacted surface, the following mouth of a river (7); it is characterized in that: offer gas port (14) on the filling pipe end (9); gas port (14) communicates with annular groove (15); offer counterbore (17) on the filling pipe end (9); counterbore (17) is connected with gas port (14); with upper guide plate (2) that filling pipe end (9) cooperates on offer locating hole (16); location wireway (12) is installed in the locating hole (16); one end of location wireway (12) is inserted in the filling pipe end (9); and match with counterbore (17); the pore of location wireway (12) is communicated with gas port (14), and location wireway (12) is gone up to be provided with and prevented its axially movable mechanism.
2. metering nozzle gas shield cast fast replacing device according to claim 1; it is characterized in that: described location wireway (12) prevents that its axially movable mechanism from being; on the outer wall of location wireway (12), external screw thread (13) is set; on locating hole (16) hole wall internal thread is set, the external screw thread of location wireway (12) matches with the internal thread on locating hole (16) hole wall.
3. metering nozzle gas shield cast fast replacing device according to claim 1, it is characterized in that: counterbore (17) is a bellmouth, the termination that location wireway (12) is inserted filling pipe end (9) is a cone.
4. metering nozzle gas shield cast fast replacing device according to claim 1; it is characterized in that: the cross sectional shape of annular groove (15) constitutes by facing (18) and inclined-plane (19) directly; face (18) and inclined-plane (19) directly in bottom extremity; face (18) directly near filling pipe end (9) through hole one side, inclined-plane (19) are near outer wall one side of filling pipe end (9).
5. metering nozzle gas shield cast fast replacing device according to claim 1; it is characterized in that: the inlet end of gas port (14) is positioned on the periphery of boss (24) of filling pipe end (9), and gas port (14) is located in the same horizontal plane with location wireway (12).
6. according to claim 1,2,3 or 4 each described metering nozzle gas shield cast fast replacing devices; it is characterized in that: submersed nozzle (20) is installed in lower end, the following mouth of a river (7); submersed nozzle is offered plug hole on (20); submersed nozzle (20) top is provided with bowl bodies; bowl bodies has inner chamber; the bowl bodies inner chamber communicates with plug hole; groove (21) is offered in the cavity wall border in the bowl bodies; offer passage (22) on submersed nozzle (20) bowl bodies, passage (22) is connected with groove (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201699706U CN202070730U (en) | 2011-05-25 | 2011-05-25 | Metering nozzle gas protection pouring quick-change device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201699706U CN202070730U (en) | 2011-05-25 | 2011-05-25 | Metering nozzle gas protection pouring quick-change device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202070730U true CN202070730U (en) | 2011-12-14 |
Family
ID=45108841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201699706U Expired - Lifetime CN202070730U (en) | 2011-05-25 | 2011-05-25 | Metering nozzle gas protection pouring quick-change device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202070730U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103567429A (en) * | 2012-07-28 | 2014-02-12 | 泰州市旺鑫耐火材料有限公司 | Guide plate of quick change mechanism |
| CN107052324A (en) * | 2017-04-25 | 2017-08-18 | 永兴特种不锈钢股份有限公司 | A kind of attachment structure of tundish to crystallizer |
-
2011
- 2011-05-25 CN CN2011201699706U patent/CN202070730U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103567429A (en) * | 2012-07-28 | 2014-02-12 | 泰州市旺鑫耐火材料有限公司 | Guide plate of quick change mechanism |
| CN107052324A (en) * | 2017-04-25 | 2017-08-18 | 永兴特种不锈钢股份有限公司 | A kind of attachment structure of tundish to crystallizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111214 |
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| CX01 | Expiry of patent term |