CN2803579Y - Dismountable device for increasing durability of concast basket slag walland slag trap - Google Patents
Dismountable device for increasing durability of concast basket slag walland slag trap Download PDFInfo
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- CN2803579Y CN2803579Y CN 200420055595 CN200420055595U CN2803579Y CN 2803579 Y CN2803579 Y CN 2803579Y CN 200420055595 CN200420055595 CN 200420055595 CN 200420055595 U CN200420055595 U CN 200420055595U CN 2803579 Y CN2803579 Y CN 2803579Y
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- slag
- steel
- blocking wall
- slag trap
- steel plate
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Abstract
The utility model provides a dismountable device for increasing the durability of slag blocking wall and slag blocking plates of continuous casting middle bags, which belongs to a device for continuous casting middle bags for controlling the flow of liquid steel. The utility model obviously increases the durability (the rush resistance, the slag resistance and the high temperature fold resistance) of slag blocking walls (weirs) and slag blocking plates of continuous casting middle bags, reduces the consumption of resistant materials, reduces impurities and increases the blank forming efficiency, the output efficiency of metal and the production efficiency of continuous casting middle bags. The utility model has the advantages of simple manufacture and use, safety and reliability, and can be widely used in the production of continuous casting blanks. The utility model has the main technical characteristics that dismountable slag blocking walls and slag blocking plates are provided with dismountable hollow combined steel plate inner liners, different fireproof materials are stacked, coated (smeared) and knotted in different positions of the surfaces of the dismountable hollow combined steel plate inner liners, and a safety automatic monitoring device is assembled partly and simultaneously.
Description
Affiliated technical field
The touch upon device of a kind of control continuous casting tundish (jar) MOLTEN STEEL FLOW of the utility model.
Background technology
The present slag blocking wall of control continuous casting tundish MOLTEN STEEL FLOW, that slag trap is is solid, homogeneous and fixed installation.Or by single refractory brick, single coating fixed installation constitutes, the slag blocking wall, the slag trap that now adopt of Anshan Iron ﹠. Steel Group Corp, BaoShan Steel Group Co., Ltd for example, the slag trap of the new VAI of introducing of Xingtai Iron and Steel Co., Ltd, the slag blocking wall of this structure, slag trap have following weak point:
Molten steel three-dimensional heat transfer (thermal shock) effect of being flowed in the hole edge of 1 slag trap, (following slag blocking wall) upper edge of slag blocking wall, (going up slag blocking wall) lower edge makes its abrasion resistance be starkly lower than the effect of one dimensional heat transfer.2, no high-strength steel sheet liner is done support (particularly no-reinforcing-bar, reinforcing bar weldering net, fork-shaped steel reinforcing protection structure), makes existing slag trap, wall, and anti-molten steel scouring power is lower under the high temperature, the infiltration of high temperature resistance molten steel is also inferior.3, can not satisfy the development of big capacity, deep molten bath tundish,, thereby can not further reduce and be mingled with high fold resistance, high ferrostatic pressure, the dynamic head slag trap of anti-high steel-passing amount, the demand of wall.4, low slag trap, the quilt of causing of scour resistance dashed the speed quickening that quilt is lost, and in the unit interval, become inclusion content and increased by baffle plate, wall.5, be coated with the high refractory material of the dissimilar corresponding antiscour corrosion resistances of knotting owing to can not inject bag place (this place's molten steel impulse force is the strongest) different parts block at the molten steel of slag lining and big steel ladle, make such existing baffle plate, wall is very fast is fallen by erosion, ineffective, the life-span is low, and inclusion content is big.Wadding middle water containing opening ratio increases.6,, make the steel grade of producing high cleaning, high added value comparatively difficult because of inclusion content is relatively high.7, because of the surplus steel amount increment of low middle Bao Zhuhou of life-span, make metal receive lowly, billet yield is also low.8, slag blocking wall, slag trap are fixedly mounted in the tundish entirely, when connect water time after, when turning over bag, more the residual steel damage that slag blocking wall, slag trap are solidified in the bag entirely can not water and time use, and makes its life-span short.9, durability is low, the life-span is short, and the bag number of times is higher in changing, and middle Bao Naicai consumption increases, and manipulation strength is also with increase, and productivity ratio is low.
Summary of the invention
The utility model is at the problem of above-mentioned existence, a kind of device of the dress rolled over of the durability that improves tundish slag blocking wall, plate is proposed, purpose is that the durability (abrasion resistance, corrosion resistance, high temperature fold resistance) that improves slag blocking wall, plate increases service life, reduces refractory consumption, improves recovery rate of iron, the productivity ratio of billet yield, tundish, further purify hot metal improves billet quality, and making, easy and simple to handle, safe and reliable, can be widely used in the production of continuous casting steel billet.
The device characteristic that the utility model provides is: it is to be made of the hollow type that can roll over dress, combined slag blocking wall, slag trap and safe automatic monitoring setting thereof.Can roll over the hollow or individual layer heat-resisting steel sheet and plate inner lining body of the hollow type of dress, combined slag trap, slag blocking wall, similar to the former slag blocking wall of tundish, plate on body, size is close, is arc, circle or V-arrangement, inverted V-shaped, U-shaped etc., or is determined by the hydraulic analogy test.
The inner lining structure of being made by steel plate is at position and tundish bell or the hanger suspension hook steel plate or the bag end of former tundish slag blocking wall, plate, involucrum welding or bolt connect as one, on the outer surface of two big steel plates of this liner and two little sides, bottom surface, individual layer heat-resisting steel sheet and plate face build and be coated with flame retardant coating (heat insulation layer, sublevel is a permanent layer, and sublevel is that the outmost surface layer of slag blocking wall, plate is a magnesia coating layer etc. again).In steel ring or weldering net and fork-shaped or the T type shape reinforcing bar robust member that weld on the surface everywhere of inner steel lining, to be buried by the tundish permanent layer, firm heat insulation layer, permanent layer, working lining effect are played in the baking back.On inner steel lining, be provided with air-vent.Bell that hollow type slag trap, slag blocking wall connect or hanger suspension hook steel plate are provided with air-vent or cold air is imported and exported.
Magnesia working lining coating can be mixed with paper clip or waveform steel wire, plays firm working lining effect.The magnesia working lining of different parts can add or not add anti-punching of the typing of building high grade refractory (brick) or anti-corrosion plate (brick).Working lining and middle cylinder-packing, the working lining block at the bag end is coated with (smearing) knotting and fuses.
Removable hollow type, combined slag trap are provided with the molten steel channel pipe, for the effect of molten steel by slag trap, retaining short, bristly hair or beard, and the effects such as the flow direction, flow velocity of control molten steel.This passage skin is a steel pipe, and its two ends is welded on the hole of hollow or individual layer heat resisting steel liner plate.But outer wall of steel pipe intrinsic heat galvanic couple.The steel pipe inwall has heat insulation layer, and middle permanent layer and innermost layer are the senior flame retardant coating in the mouth of a river (round or side or square type) (its material is magnalium or magnesium carbonaceous or magnesium zirconium carbonaceous or pottery).Two ends, the mouth of a river be fixed on steel liner plate hole and the square brick or tube channel flame retardant coating (brick cup) on, the flame retardant coating of this square brick or passage flame retardant coating and slag trap is built to be coated with and is integral.
The automatic protection unit of the safety of hollow slag trap: for guaranteeing the application of hollow slag trap long-term security, reach the purpose of firm its durability of raising of safety: can on the molten steel channel steel steel pipe of the hollow slag trap of part, be provided with side temperature idol head or be provided with the infrared ray temperature-measuring machine, thermocouple thermometer (temperature indicator) industrial microcomputer (Surveillance center), safe display lamp, safe acoustic alarm in the tube channel side.
Removable hollow type of the present utility model, combined slag trap, slag blocking wall are work like this, in the inferior continuous casting process from start to finish of whenever watering of molten steel:
1 hollow slag trap, the hollow inner steel lining of wall, the outer layer pipe of the molten steel channel pipe of slag trap makes its surface build the flame retardant coating be coated with, particularly make slag blocking wall on, the place, lower edge.The flame retardant coating at the place, the mouth of a river of molten steel channel is subjected to the one dimensional heat transfer effect of molten steel.Improved baffle plate, the barricade abrasion resistance.Removable combined slag trap slag blocking wall weakens the Three-dimensional Heat-transfer effect of molten steel because of the effect of fireproof heat-insulating layer is arranged, and can improve the abrasion resistance of baffle plate, barricade.
2 high strength are (in normal casting process; its temperature is 350～800 ℃) the steel inner lining body; and be welded with the reinforcing bar guard circle in the above or weld net; the structure that the paper clip of forked type, T-steel muscle and magnesia working lining or undaform steel wire are formed has the dashing property fold resistance that surpasses the slag blocking wall of original refractory material far away.
3 slag lines at the baffle plate barricade close on the steel ladle molten steel place of making a bet, because the magnesia working lining of baffle plate, barricade can add sticking high-strength high temperature-resistant punching or thicken magnesia coating, and in the tube channel of baffle plate, can install senior, the extra-high-speed level refractory material mouth of a river, the anti-molten steel aggressivity at the position that above-mentioned spy is subject to lose is obviously improved, can make hollow type, combined slag trap, the slag blocking wall durability obviously improves, and increases service life.
4 are whenever watering when time having watered last jar steel, when residual steel still is liquid in the tundish, can will be installed on the tundish, and be connected with hollow or combined slag blocking wall, the bell of plate or hanger suspension hook are sling, make slag blocking wall, slag trap is separated tundish, the residual steel (cold) that solidifies in the time of can avoiding turning over bag is to slag blocking wall, the damage of slag trap, its single jar of company is reached the time of watering or far surpass the single jar of company that shows the pans housing and water the time (30h), and can water time use more, significantly save refractory consumption, reduce inclusion content, reduce the ratio at the wadding mouth of a river, improve billet quality, the residual molten steel amount of bag residue improves billet yield, tundish productivity ratio etc. in the minimizing.
Hollow type slag trap automatic safe monitor device is work like this:
To survey a steel tube surface temperature be 350～800 ℃ to thermometric idol head (or infrared thermometry table) during the molten steel channel pipe operate as normal of 1 slag trap, and control microcomputer is handled green light and shown that acoustic alarm is chimes of doom not, the foundry work normal running.
The 2 slag trap molten steel channel mouths of a river, when if micro-crack is arranged, ooze out molten steel steel pipe temperature of molten steel channel pipe to the process between mouth of a river layer and the permanent layer from micro-crack and raise, during the even thermometric to 400 of thermometric～850 ℃, the monitoring system amber light shows, the short alarm song of acoustic alarm newspaper.Foundry work or microcomputer automatic control steel ladle slide plate semi-closure or contract fully reduce the tundish molten steel amount of injecting, and it is standby that the pendulum groove is swung to the below of molten steel channel pipe immediately, and middle water containing opening still can normally water the speed cast.
In the 3 slag trap molten steel channel pipes, pouring spout is if there is large fracture, when molten steel has been permeated again in the intermediate layer, the steel pipe temperature of tube channel heats up sharply, even thermometric of thermometric is during to (651～900 ℃), and the monitoring system red light shows, the long alarm song of audible alarm newspaper, foundry work or microcomputer automatic control steel ladle slide plate contract fully, middle water containing opening slide plate standard-sized sheet.Conticaster high speed throwing can make and water service time than long company by the higher durability of obtaining of hollow slag trap safety.
Description of drawings
Below in conjunction with accompanying drawing (1～11) the utility model specific embodiment is further described:
Accompanying drawing 1 is removable slag trap of hollow type and safe automatic monitoring device schematic diagram thereof, also is bright book extract accompanying drawing 1 of the present utility model
Accompanying drawing 2 is the dismantled and assembled slag trap structural representations of hollow type, also is the Figure of abstract 2 of specification.
Accompanying drawing 4 is the dismantled and assembled slag blocking wall structural representations of hollow type.
Accompanying drawing 7 is slag blocking wall structure partial schematic diagrames on the dismantled and assembled slag blocking wall of hollow type.
Accompanying drawing 8 is combined dismantled and assembled slag trap structural representations.
Accompanying drawing 9 is combined dismantled and assembled slag trap structure partial schematic diagrames.
Accompanying drawing 10 is combined dismantled and assembled slag blocking wall structure partial schematic diagrames of going up.
Accompanying drawing 11 is combined dismantled and assembled slag blocking wall structure partial schematic diagrames down.
The specific embodiment
From Fig. 1, Fig. 2, Fig. 3, the composition of dismantled and assembled slag trap of hollow type and safety custody device thereof as can be known: its hollow type slag trap is to do the liner (1) of hollow dismantled and assembled slag trap and the flame retardant coating (2) of rest thereof by steel plate, molten steel channel pipe (3) tundish bell (part) steel plate (5) or company's hanger suspension hook steel plate constitute, be with two major parts, the liner welding of two fritter side steel plates and bottom surface slag trap or bolt are connected the tundish bell or connect the steel plate (5) of hanger suspension hook, on formed the inner lining body of hollow type slag trap, this inner lining body is similar to former tundish slag trap body, the orientation, measure-alike or determine that according to hydraulic analogy test optimum body is the slag trap of arc or circle or U type or V-type or ∧ or Y type or ladder type.
Steel ring (28) or weldering net and forked type or T-steel muscle girth member (29) in the weldering of the surface of inner steel lining.On inner steel lining, be provided with air-vent (27), its diameter is got 6～16mm.Be provided with ventilative passage or the cooling air intake (27) of holding concurrently at the end face bell of inner steel lining or with (5) above the steel plate that hanger is connected, its internal diameter is 6～260mm, is 350C～800C usefulness of ventilating for keeping the inner steel lining surface temperature.
By the flame retardant coating (2) of inner steel lining rest is by the magnesia layer of permanent layer (2-2) in the middle of the heat insulation layer of being close to the liner appearance (2-1) or magnesium is calcareous or magnalium matter or diamond spar matter or magnesium carbonaceous working lining (2-3), or post the anti-plate (brick) that washes away of unlike material again at this working lining, that anti-slag plate (brick) constitutes or be mixed with paper clip or undaform steel wire.The side of hollow removable slag trap, bottom surface working lining and middle bag furnace shell, the working lining of furnace bottom are built to smear and are knotted into one.
The dismantled and assembled slag trap of hollow type is provided with molten steel channel pipe (3), it is (circle, side, apart from the shape) steel pipe (18) by the molten steel channel hole that is welded in two inner steel linings, and inwall is close to heat insulation layer (19), permanent layer (20) and the high grade refractory mouth of a river (16) in the middle of the layer once more, or to be close to the steel pipe inwall be flame retardant coating (brick cup), and sublevel is a refractory nozzle.Orientation, the mouth of a river (16), size, quantity is identical with former slag trap or close or make by the optimum value that hydraulic analogy is determined, two ends, the mouth of a river are fixed on the interior flame retardant coating (brick cup) (17) of steel liner plate hole and square brick or passage steel pipe, and the flame retardant coating (2) of flame retardant coating and slag trap is built to be coated with and is integral in this square brick or the pipe.
Show that by Fig. 1 the safe automatic monitoring device of hollow type slag trap is by: thermometric idol head (21) (or optics temperature-measuring machine), temperature measuring gauge (22), industrial microcomputer Surveillance center (25) siren (26), warning light (24) is formed.
Attending device: pendulum groove (8) { in crystallizer (10) top }, steel tank (9) overflows.
By Fig. 4, Fig. 5, Fig. 6, Fig. 7 as can be known: the removable inner steel lining (1) of slag blocking wall and flame retardant coating (the 2) [heat insulation layer (2-1) of rest thereof gone up of hollow type, middle permanent layer (2-2), working lining (2-3) or be close to refractory material stereotype plate, the brick that working lining has unlike material], and the steel plate (5) of connection tundish bell (part) steel plate or hanger suspension hook, identical with the structure of hollow type slag trap; The removable slag blocking wall down of hollow type is flame retardant coating (the 2) [heat insulation layer (2-1) by inner steel lining (1) and rest thereof, middle permanent layer (2-2), working lining (2-3) or be close to refractory material stereotype plate, the brick that working lining has unlike material] and part in the middle of steel plate (6) formation at the bottom of golden steel plated shell steel plate (4) tundish.
By the combined as can be known removable slag trap in Fig. 8～11, slag blocking wall is by individual layer heat-resisting steel sheet and plate liner (1 '), and the flame retardant coating of rest (2) and other and hollow slag trap, structure that slag blocking wall is identical are formed.
Claims (9)
1 one kinds are improved slag blocking wall, the removable device of slag trap durability, it is characterized in that by removable hollow type, combined slag blocking wall, slag trap and safety custody device thereof are formed: removable hollow type, combined slag trap is respectively by hollow type steel plate (1) individual layer heat-resisting steel sheet and plate (1 ') liner, and the flame retardant coating of rest (2), molten steel channel pipe (3) and part bell with or be connected with lug hook steel plate (5) and constitute; Removable hollow type is combined, and to go up slag blocking wall be respectively by hollow type steel plate (1) individual layer heat-resisting steel sheet and plate (1 ') liner, and the flame retardant coating of rest (2) and part bell with or be connected with hanger suspension hook steel plate (5) and constitute; The combined down slag blocking wall of removable hollow type is respectively by hollow type steel plate (1) individual layer heat-resisting steel sheet and plate (1 ') liner, and steel plate (6) formation at the bottom of involucrum steel plate (4) the part tundish bag in the middle of flame retardant coating of rest (2) and the part; The automatic safe monitor device of the removable hollow type slag trap of part is by thermometric idol head (21) or optics temperature measurer, temperature measuring gauge (22), industrial microcomputer Surveillance center (25), acoustic alarm (26), visual alarm (24), attending device pendulum groove (8) is in crystallizer (10) top, and the steel tank (9) that overflows constitutes.
2 require described a kind of raising slag blocking wall according to right 1, and the removable device of slag trap durability is characterized in that the steel plate of dismantled and assembled hollow type steel plate liner is provided with air-vent; On the steel plate of bell (part) or company's hanger suspension hook, be provided with air-vent or cold air manhole appendix.
3 require described a kind of raising slag blocking wall according to right 1, the removable device of slag trap durability is characterized in that slag trap slag blocking wall on the removable hollow type is by two major parts steel plate (1) two fritter side steel plate and bottom surface steel plate and part bell or connect the steel plate welding of hanger suspension hook or bolt its inner lining body that is formed by connecting; It is removable that combined to go up slag trap be by individual layer inner steel lining and bell (5) or be connected with that the suspension hook steel plate welds or bolt is connected to form inner lining body; The combined slag blocking wall down of removable hollow type is partly to be welded together by middle involucrum (4) part tundish base plate (6) bolt of two inner steel linings (1) individual layer inner steel linings (1 ') and part respectively to form its inner lining body.
4 require described a kind of raising slag blocking wall according to right 1, and the removable device of slag trap durability is characterized in that the optimum shape of the combined slag trap slag blocking wall of removable hollow type has arc or circle or U type or V-type or ∧ type or Y type or ladder type.
5 according to right 1 described a kind of raising slag blocking wall, and the removable device of slag trap durability is characterized in that being welded with reinforcing bar guard circle (28) or weldering net, firm of forked type or T-steel muscle (29) on the inner steel lining outside.
6 require described a kind of raising slag blocking wall according to right 1, the removable device that slag trap is durable, it is characterized in that the combined slag trap of hollow type, working lining (2-3) material of the flame retardant coating of the steel plate of slag blocking wall lining institute rest is that calcareous or corundum matter of magnesian or magnesium or magnesia layer add various antiscours, corrosion resistance, anti-punching or anti-corrosion plate (brick) that fold resistance is good; Can be mixed with paper clip type or undaform steel wire robust member in the fire-resistant working lining; Fire-resistant working lining and furnace lining, the fire-resistant working lining block of furnace bottom are coated with (smearing) and are knotted into one.
7 require described a kind of raising slag blocking wall according to right 1, the device of the dress rolled over of slag trap durability, it is characterized in that the combined slag trap of hollow type molten steel channel pipe (3), outermost layer steel pipe (18), be to weld together with the passway of its two inner steel lining, individual layer steel plate respectively.
8 require described a kind of raising slag blocking wall according to right 1, the removable device of slag trap durability, the molten steel channel pipe that it is characterized in that hollow type combination slag trap are by outermost layer steel pipe (18), sublevel heat insulation layer (19), sublevel is that middle permanent layer (20), innermost layer are the mouth of a river (16) of high grade refractory again; Or sublevel is the brick cup layer, and the innermost layer is the refractory material mouth of a river.
9 require described a kind of raising slag blocking wall according to right 8, and the removable device of slag trap durability is characterized in that the mouth of a river (16), has magnalium matter or magnesium carbonaceous or magnesium zirconium carbonaceous or ceramic material to constitute; Two ends, the mouth of a river are fixed on steel liner plate hole and square brick (17) or the brick cup, and the flame retardant coating of this square brick or brick cup and slag trap (2) is built to be coated with and is integral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420055595 CN2803579Y (en) | 2004-12-10 | 2004-12-10 | Dismountable device for increasing durability of concast basket slag walland slag trap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420055595 CN2803579Y (en) | 2004-12-10 | 2004-12-10 | Dismountable device for increasing durability of concast basket slag walland slag trap |
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|---|---|
| CN2803579Y true CN2803579Y (en) | 2006-08-09 |
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|---|---|---|---|
| CN 200420055595 Expired - Fee Related CN2803579Y (en) | 2004-12-10 | 2004-12-10 | Dismountable device for increasing durability of concast basket slag walland slag trap |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101658910B (en) * | 2009-09-20 | 2011-06-29 | 浙江红鹰集团股份有限公司 | Composite slag weir and preparation method thereof |
| CN103231049A (en) * | 2013-05-13 | 2013-08-07 | 德阳宏广科技有限公司 | Automatic slag removing device of pouring boiler |
| CN106041044A (en) * | 2016-08-04 | 2016-10-26 | 山东钢铁股份有限公司 | Continuous casting tundish breathable ceramic tube upper nozzle brick cup and argon blowing refining method thereof |
| CN109648068A (en) * | 2019-01-29 | 2019-04-19 | 大冶特殊钢股份有限公司 | A kind of induction heating tundish ladle canal and its means of defence |
| CN117226079A (en) * | 2023-11-10 | 2023-12-15 | 江苏大能金属科技有限公司 | Casting equipment is smelted in production of motor copper end ring |
-
2004
- 2004-12-10 CN CN 200420055595 patent/CN2803579Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101658910B (en) * | 2009-09-20 | 2011-06-29 | 浙江红鹰集团股份有限公司 | Composite slag weir and preparation method thereof |
| CN103231049A (en) * | 2013-05-13 | 2013-08-07 | 德阳宏广科技有限公司 | Automatic slag removing device of pouring boiler |
| CN106041044A (en) * | 2016-08-04 | 2016-10-26 | 山东钢铁股份有限公司 | Continuous casting tundish breathable ceramic tube upper nozzle brick cup and argon blowing refining method thereof |
| CN109648068A (en) * | 2019-01-29 | 2019-04-19 | 大冶特殊钢股份有限公司 | A kind of induction heating tundish ladle canal and its means of defence |
| CN117226079A (en) * | 2023-11-10 | 2023-12-15 | 江苏大能金属科技有限公司 | Casting equipment is smelted in production of motor copper end ring |
| CN117226079B (en) * | 2023-11-10 | 2024-01-30 | 江苏大能金属科技有限公司 | Casting equipment is smelted in production of motor copper end ring |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |