CN203091698U - Water port flow control device preventing continuous casting tundish from producing eddy flow - Google Patents
Water port flow control device preventing continuous casting tundish from producing eddy flow Download PDFInfo
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- CN203091698U CN203091698U CN 201320107913 CN201320107913U CN203091698U CN 203091698 U CN203091698 U CN 203091698U CN 201320107913 CN201320107913 CN 201320107913 CN 201320107913 U CN201320107913 U CN 201320107913U CN 203091698 U CN203091698 U CN 203091698U
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- tundish
- discharging tube
- flow control
- control device
- pod apertures
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Abstract
The utility model discloses a water port flow control device preventing a continuous casting tundish from producing eddy flow, and belongs to the technical field of tundish water port flow control. The water port flow control device comprises a liquid outlet pipe, a liquid inlet pipe, a flow guide hole, a flow control plug bar and a lifting mechanism, wherein the liquid outlet pipe penetrates through the bottom of the tundish and stretches into the tundish, the liquid outlet pipe is hollow, one end portion, stretching into the tundish, of the liquid outlet pipe is fixedly connected with a liquid inlet plate, the top and the side face of the liquid inlet plate are sealed, the bottom surface of the liquid inlet plate is provided with one or more than one flow guide hole, an opening of the flow guide hole is downward, and the flow guide hole is communicated with the hollow part inside the liquid outlet pipe. The flow control plug bar is arranged under the flow guide hole, the external diameter of the flow control plug bar is matched with the internal diameter of the corresponding flow guide hole, and the flow control plug bar is vertically arranged and is fixed at the bottom of the tundish. The lifting mechanism is arranged at one end of the liquid outlet pipe placed outside the tundish, and the lifting mechanism controls lifting movement of the liquid outlet pipe and the liquid inlet plate. The water port flow control device can effectively prevent the eddy flow from forming, and improves cleanliness of molten steel.
Description
Technical field
The utility model relates to the mouth of a river control stream technical field of continuous casting tundish, more particularly, relates to a kind of continuous casting tundish that prevents and produces the mouth of a river flow control device of eddy flow.
Background technology
Molten metal is attended by eddy flow often from the floss hole outflow in casting cycle, the formation of eddy flow can influence the quality of metallic article.This phenomenon often runs in the continuous casting production of steel; when the molten steel of tundish is discharged from the mouth of a river; if molten steel liquid level is lower than a certain critical value and will produces eddy flow; the generation of eddy flow causes liquid level covering slag and air to enter molten steel; for some high-quality steel grades; can produce very big influence to steel product quality, so regular meeting reduces eddy flow with certain methods, and then improve the quality of steel.
At present, the method for anti-cyclone commonly used is stopper control and slide gate nozzle control, and stopper control is the liquid form that the lifting by stopper changes near the molten steel mouth of a river, the formation of minimizing eddy flow; The effect of stopper control eddy flow is better than slide gate nozzle, yet the anti-cyclone effect of stopper also is very limited, and for some steel grades, the anti-cyclone degree of stopper does not reach requirement far away.(mainly being Europe, Japan) abroad, developed rotary control valve, rotary control valve mainly is made up of valve component, executing agency, locator, pressure regulator, converter and limit switch etc., and result of use is obvious in actual production, has reduced the formation of eddy flow to a great extent, its characteristics mainly are, by rotary valve with control molten steel flow velocity, by side opening reducing the generation of molten steel eddy flow, yet when molten steel drops to certain degree, eddy flow still can form, and brings the slag body in.
Chinese patent application publication No. CN102398004 A, Shen Qing Publication day is on April 4th, 2012, invention and created name is: prevent the sliding nozzle device that vortex produces, this application case relates to the sliding nozzle device that a kind of anti-vortex produces, described upper slide and lower skateboard relative fixed are motionless, slide plate is arranged between upper slide and the lower skateboard in the middle of described, and but along continuous straight runs moves back and forth between upper slide and lower skateboard, bilateral symmetry position, the top of filling pipe end offer with filling pipe end in the bypass side opening that is connected, in the middle of in the described filling pipe end is hollow, passes through upper slide, molten steel flow channel on middle slide plate and the lower skateboard is connected with the following mouth of a river.Can stop molten steel vertically to flow into by this application case, make molten steel enter filling pipe end, suppress the vortex that confluxes to a certain extent, prevent being involved in of liquid level covering slag and air, and can reduce the residual steel amount in the pouring container, improve recovery rate of iron from side opening.Its weak point is: though molten steel flows into from side opening, effectively reduced vortex, when molten steel reaches certain liquid level, still can produce eddy flow, slag body and air are involved in the molten steel, influenced the molten steel quality.
Summary of the invention
The technical problem that utility model will solve
The purpose of this utility model is to overcome in the prior art molten steel in the continuous casting tundish and flows out from the mouth of a river and easily produce eddy flow, cause liquid level covering slag and air to enter the deficiency of molten steel, provide a kind of continuous casting tundish that prevents to produce the mouth of a river flow control device of eddy flow, by architecture advances of the present utility model, molten steel is entered from the bottom of liquid feeding disc, discharge from drain pipe, thereby effectively, farthest prevented the formation of eddy flow.
Technical scheme
For achieving the above object, the technical scheme that the utility model provides is:
A kind of continuous casting tundish that prevents of the present utility model produces the mouth of a river flow control device of eddy flow, comprise discharging tube, liquid feeding disc, pod apertures, control stream stopper and elevating mechanism, described discharging tube passes the tundish end stretch and goes into tundish inside, this discharging tube inner hollow, above-mentioned discharging tube one end of stretching in the tundish is fixed with liquid feeding disc, described liquid feeding disc top and side are the sealing shape, the bottom surface of this liquid feeding disc is provided with the one or more pod apertures that Open Side Down, described pod apertures is connected with the hollow bulb of discharging tube inside, forms the passing away of molten steel; Be provided with control stream stopper under the described pod apertures, described control stream stopper external diameter matches with corresponding pod apertures internal diameter, and this control is flowed stopper and vertically is provided with, and is fixed at the bottom of the tundish; Be positioned at outer discharging tube one end of tundish elevating mechanism is installed, the elevating movement of this elevating mechanism control discharging tube and liquid feeding disc.
Further, the contact position is provided with sleeve pipe at the bottom of described discharging tube and the tundish, and described sleeve pipe is sleeved on the outside of discharging tube, and is provided with annular gap between sleeve pipe and the discharging tube, and above-mentioned annular gap is connected with the inert gas input unit.
Further, the quantity of described pod apertures is 4, and these 4 pod apertures are uniformly distributed in the bottom surface of liquid feeding disc around the central shaft of discharging tube, and the cross sectional shape of pod apertures be circle, ellipse or polygon.
Further, described elevating mechanism comprises lifter rack and motor, and the described lifter rack discharging tube outer wall outer with being positioned at tundish is connected mutually, the motion of motor-driven lifter rack.
Further, described discharging tube outer wall is provided with two guiding raised lines of symmetry, and described sleeve pipe is provided with two direction recess of symmetry, and above-mentioned guiding raised line matches with direction recess.
Beneficial effect
The technical scheme that adopts the utility model to provide is compared with existing known technology, has following remarkable result:
(1) a kind of continuous casting tundish that prevents of the present utility model produces the mouth of a river flow control device of eddy flow, the bottom surface of its liquid feeding disc is provided with the pod apertures that Open Side Down, pod apertures is connected with the hollow bulb of discharging tube inside and forms the passing away of molten steel, changed the mode that molten steel enters discharging tube, prevented the formation of eddy flow effectively, the minimizing of maximum likelihood liquid level covering slag and air enter molten steel, improved the cleanliness factor of molten steel;
(2) a kind of continuous casting tundish that prevents of the present utility model produces the mouth of a river flow control device of eddy flow, be provided with annular gap between its sleeve pipe and the discharging tube, and annular gap is connected with the inert gas input unit, mode by the bottom blowing inert gas, can prevent effectively that molten steel is air-breathing, crucial effect is the inert gas that is blown into from annular gap, collaborative pod apertures suppresses the effect of molten steel eddy flow, can realize stopping the generation of eddy flow substantially, thereby significantly improve the recovery rate of molten steel, and the inert gas that is blown into can stir molten steel, promotes macroscopical flow regime of molten steel in the tundish;
(3) a kind of continuous casting tundish that prevents of the present utility model produces the mouth of a river flow control device of eddy flow, the quantity of its pod apertures is 4, and when evenly distributing, by water mould and digital-to-analogue checking, its effect that prevents the generation of molten steel eddy flow is best, it is best to prevent that liquid level covering slag and air from entering the effect of molten steel, has effectively improved slab quality;
(4) a kind of continuous casting tundish that prevents of the present utility model produces the mouth of a river flow control device of eddy flow, elevating movement by elevating mechanism control discharging tube and liquid feeding disc, thereby adjust the degree that control stream stopper inserts pod apertures, realized the effect of control molten steel flow, the control flow operation is simple and reliable, and, guaranteed the accurate location of pod apertures with control stream stopper by being used of guiding raised line and direction recess.
Description of drawings
Fig. 1 produces the structural representation of the mouth of a river flow control device of eddy flow for a kind of continuous casting tundish that prevents of the present utility model;
Fig. 2 is the schematic cross-section that discharging tube cooperates with sleeve pipe in the utility model.
Label declaration in the schematic diagram:
1, at the bottom of the tundish; 2, sleeve pipe; 3, discharging tube; 4, liquid feeding disc; 5, pod apertures; 6, control stream stopper; 7, lifter rack.
The specific embodiment
For further understanding content of the present utility model, in conjunction with the accompanying drawings and embodiments the utility model is described in detail.
Embodiment 1
In conjunction with Fig. 1 and Fig. 2, a kind of continuous casting tundish that prevents of present embodiment produces the mouth of a river flow control device of eddy flow, comprise sleeve pipe 2, discharging tube 3, liquid feeding disc 4, pod apertures 5, control stream stopper 6 and elevating mechanism, described discharging tube 3 passes at the bottom of the tundish 1 and stretches into tundish inside, these discharging tube 3 inner hollow, discharging tube 3 is provided with sleeve pipe 2 with 1 contact position at the bottom of the tundish in the present embodiment, described sleeve pipe 2 is sleeved on the outside of discharging tube 3, and be provided with annular gap between sleeve pipe 2 and the discharging tube 3, above-mentioned annular gap is connected with the inert gas input unit, by the mode of bottom blowing inert gas, can prevent effectively that molten steel is air-breathing.Above-mentioned discharging tube 3 one ends of stretching in the tundish are fixed with liquid feeding disc 4, described liquid feeding disc 4 tops and side are the sealing shape, the bottom surface of liquid feeding disc 4 is provided with the formation that the one or more pod apertures 5 that Open Side Down all can prevent eddy flow effectively in the utility model, the quantity of preferred pod apertures 5 is 4 in the present embodiment, these 4 pod apertures 5 are uniformly distributed in the bottom surface of liquid feeding disc 4 around the central shaft of discharging tube 3, described pod apertures 5 is connected with the hollow bulb of discharging tube 3 inside, forms the passing away of molten steel.What deserves to be explained is, the cross sectional shape of pod apertures 5 is that circle, ellipse or polygon all can in the utility model, this polygon comprises regular polygon and non-regular polygon, convex polygon and concave polygon etc., and the cross sectional shape of preferred pod apertures 5 is circular in the present embodiment.
In the present embodiment under 4 pod apertures 5 respectively correspondence be provided with 4 control stream stoppers 6, described control stream stopper 6 external diameters match with corresponding pod apertures 5 internal diameters, this is controlled and flows stopper 6 and vertically be provided with, and is fixed at the bottom of the tundish 1.Be positioned at outer discharging tube 3 one ends of tundish in the present embodiment elevating mechanism is installed, this elevating mechanism comprises lifter rack 7 and motor, described lifter rack 7 discharging tube 3 outer walls outer with being positioned at tundish are connected mutually, 7 motions of motor-driven lifter rack, thereby the elevating movement of control discharging tube 3 and liquid feeding disc 4.Flow the accurate location of stopper 6 in order to guarantee pod apertures 5 and control, discharging tube 3 outer walls in the present embodiment are provided with two guiding raised lines of symmetry, described sleeve pipe 2 is provided with two direction recess of symmetry, and above-mentioned guiding raised line matches with direction recess, as shown in Figure 2.
A kind of continuous casting tundish that prevents of the present utility model produces the mouth of a river flow control device of eddy flow, its crucial innovative point has been to change the mode that molten steel enters discharging tube 3, prevented the formation of eddy flow effectively, the minimizing of maximum likelihood liquid level covering slag and air enter molten steel, improved the cleanliness factor of molten steel; And in conjunction with the inert gas that is blown into from annular gap, collaborative pod apertures 5 suppresses the effect of molten steel eddy flow, can realize stopping substantially the generation of eddy flow, thereby significantly improve the recovery rate of molten steel, the inert gas that is blown into simultaneously can stir molten steel, promotes macroscopical flow regime of molten steel in the tundish.
Below schematically the utility model and embodiment thereof are described, this description does not have restricted, and shown in the accompanying drawing also is one of embodiment of the present utility model, and practical structure is not limited thereto.So,, under the situation that does not break away from the utility model creation aim,, all should belong to protection domain of the present utility model without creationary frame mode similar and the embodiment of designing to this technical scheme if those of ordinary skill in the art is enlightened by it.
Claims (5)
1. one kind prevents that the continuous casting tundish from producing the mouth of a river flow control device of eddy flow, it is characterized in that: comprise discharging tube (3), liquid feeding disc (4), pod apertures (5), control stream stopper (6) and elevating mechanism, (1) stretched into tundish inside at the bottom of described discharging tube (3) passed tundish, this discharging tube (3) inner hollow, above-mentioned discharging tube (3) one ends of stretching in the tundish are fixed with liquid feeding disc (4), described liquid feeding disc (4) top and side are the sealing shape, the bottom surface of this liquid feeding disc (4) is provided with the one or more pod apertures (5) that Open Side Down, described pod apertures (5) is connected with the hollow bulb of discharging tube (3) inside, forms the passing away of molten steel; Be provided with control stream stopper (6) under the described pod apertures (5), described control stream stopper (6) external diameter matches with corresponding pod apertures (5) internal diameter, the vertical setting of this control stream stopper (6), and be fixed in (1) at the bottom of the tundish; Be positioned at outer discharging tube (3) one ends of tundish elevating mechanism is installed, the elevating movement of this elevating mechanism control discharging tube (3) and liquid feeding disc (4).
2. a kind of continuous casting tundish that prevents according to claim 1 produces the mouth of a river flow control device of eddy flow, it is characterized in that: described discharging tube (3) is provided with sleeve pipe (2) with (1) contact position at the bottom of the tundish, described sleeve pipe (2) is sleeved on the outside of discharging tube (3), and be provided with annular gap between sleeve pipe (2) and the discharging tube (3), above-mentioned annular gap is connected with the inert gas input unit.
3. a kind of continuous casting tundish that prevents according to claim 1 produces the mouth of a river flow control device of eddy flow, it is characterized in that: the quantity of described pod apertures (5) is 4, these 4 pod apertures (5) are uniformly distributed in the bottom surface of liquid feeding disc (4) around the central shaft of discharging tube (3), and the cross sectional shape of pod apertures (5) be circle, ellipse or polygon.
4. produce the mouth of a river flow control device of eddy flow according to claim 2 or 3 described a kind of continuous casting tundish that prevent, it is characterized in that: described elevating mechanism comprises lifter rack (7) and motor, described lifter rack (7) discharging tube (3) outer wall outer with being positioned at tundish is connected mutually, motor-driven lifter rack (7) motion.
5. a kind of continuous casting tundish that prevents according to claim 4 produces the mouth of a river flow control device of eddy flow, it is characterized in that: described discharging tube (3) outer wall is provided with two guiding raised lines of symmetry, described sleeve pipe (2) is provided with two direction recess of symmetry, and above-mentioned guiding raised line matches with direction recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320107913 CN203091698U (en) | 2013-03-11 | 2013-03-11 | Water port flow control device preventing continuous casting tundish from producing eddy flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320107913 CN203091698U (en) | 2013-03-11 | 2013-03-11 | Water port flow control device preventing continuous casting tundish from producing eddy flow |
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| Publication Number | Publication Date |
|---|---|
| CN203091698U true CN203091698U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320107913 Expired - Fee Related CN203091698U (en) | 2013-03-11 | 2013-03-11 | Water port flow control device preventing continuous casting tundish from producing eddy flow |
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| CN (1) | CN203091698U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111613A (en) * | 2013-03-11 | 2013-05-22 | 安徽工业大学 | Pouring gate flow control device for preventing rotational flow from generating in continuous casting tundish |
| CN104070156A (en) * | 2014-07-08 | 2014-10-01 | 辽宁科技大学 | Continuous casting submersed nozzle capable of generating rotational flow |
| CN110918962A (en) * | 2019-11-18 | 2020-03-27 | 张家港宏昌钢板有限公司 | Retaining wall type continuous casting tundish |
-
2013
- 2013-03-11 CN CN 201320107913 patent/CN203091698U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111613A (en) * | 2013-03-11 | 2013-05-22 | 安徽工业大学 | Pouring gate flow control device for preventing rotational flow from generating in continuous casting tundish |
| CN103111613B (en) * | 2013-03-11 | 2015-05-13 | 安徽工业大学 | Pouring gate flow control device for preventing rotational flow from generating in continuous casting tundish |
| CN104070156A (en) * | 2014-07-08 | 2014-10-01 | 辽宁科技大学 | Continuous casting submersed nozzle capable of generating rotational flow |
| CN110918962A (en) * | 2019-11-18 | 2020-03-27 | 张家港宏昌钢板有限公司 | Retaining wall type continuous casting tundish |
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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: 20130731 Termination date: 20140311 |