CN204912695U - Interior molten steel of continuous casting crystallizer that argon system is blown in area solidifies analogue means - Google Patents
Interior molten steel of continuous casting crystallizer that argon system is blown in area solidifies analogue means Download PDFInfo
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- CN204912695U CN204912695U CN201520230592.6U CN201520230592U CN204912695U CN 204912695 U CN204912695 U CN 204912695U CN 201520230592 U CN201520230592 U CN 201520230592U CN 204912695 U CN204912695 U CN 204912695U
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Abstract
The utility model provides an interior molten steel of continuous casting crystallizer that argon system is blown in area solidifies analogue means. The utility model discloses the device mainly includes: include frame (13), converter (2), crystallizer copper mold (1), throwing motor (6), vibrating motor (7), cooling water system (10), data acquisition system (9) and blow argon system (15). The argon system of blowing then include: immersion pipe (15a), straight return bend (15b), hose (15c), flowmeter (15d), pneumatic valve (15e), gas bomb (15f), immersion pipe (15a) noose is on straight return bend (15b). This kind of interior molten steel of continuous casting crystallizer that argon system is blown in area solidifies analogue means, can effectively simulate the argon process of blowing in the industry continuous casting crystallizer, realize laboratory high temperature research bubble in the crystallizer the action and to the influence of continuous casting process etc. In addition the utility model discloses still have advantages such as the experiment is with low costs, convenient operation.
Description
Technical field
A kind of steel liquid solidification simulator in continuous casting crystallizer with argon blowing system of the utility model; Belong to continuous casting of iron and steel technical field.
Background technology
Along with market is to the increase of high-quality steel demand, crystallizer submersed nozzle blowing argon casting technique is widely used in continuous casting of iron and steel production process.Mold gap Argon not only can avoid air intake, the molten steel secondary oxidation caused, but also can prevention of immersed nozzle clogging; In addition, Argon Bubble can also play stirring molten steel, reaches even molten steel component and temperature, promotes the effects such as inclusion floating.Although crystallizer Argon benefit is a lot, also problem served by band simultaneously, and as Argon Bubble is caught by base shell solidification front, covering slag emulsification etc., finally affect slab quality.In crystallizer, Argon also produces many problems while having numerous benefits just, and therefore in decades, metallargist is to this has been large quantity research.The method of current research crystallizer inner nozzle Argon mainly contains two kinds, and one is directly carried out on industrial casting machine or half industrial experiment casting machine; Another kind is then adopt the method for Numerical Simulation or water model (CN203900471U) to carry out.A kind of front method needs to drop into a large amount of human and material resources and financial resources, and the normal production of impact; That numerical model or water model all have passed through a large amount of hypothesis process in a kind of rear method, as the input data in the hypotheses of numerical modeling process and model and actual difference etc., and there is not pyroreaction in water model, solidify behavior etc., these all cause actually with industry differing comparatively large, can not complete reaction actual conditions.
Central South University's iron and steel 2012 to apply for and the patent of invention CN102357650A obtained the authorization " steel liquid solidification simulator in continuous casting crystallizer " has the features such as easy to operate, experimental cost is low, effective research can be carried out to the thermodynamic behavior of Various Complex in crystallizer, but it's a pity, this device cannot be used for the research of the aspects such as the impact of Argon process in industrial continuous cast mold and generation thereof.
Summary of the invention
The utility model is for the deficiency of prior art and device, a kind of steel liquid solidification simulator in continuous casting crystallizer with argon blowing system is provided, this device can be used for the impact that laboratory High Temperature Simulation studies Argon process in industrial continuous cast mold and generation thereof, has the features such as experimental cost is low, easy to operate.
The utility model is achieved through the following technical solutions technical goal.
A kind of steel liquid solidification simulator in continuous casting crystallizer with argon blowing system of the utility model, comprises support (13), converter (2), crystallizer copper mold (1), throwing motor (6), vibrating motor (7), cooling water system (10), data collecting system (9) and argon blowing system (15); It is characterized in that: described argon blowing system (15) is made up of dipping tube (15a), straight bend pipe (15b), flexible pipe (15c), flowmeter (15d), air valve (15e), gas bomb (15f); Described dipping tube (15a) noose is on straight bend pipe (15b), straight bend pipe (15b) is connected by the outlet side of flexible pipe (15c) with flowmeter (15d), and the inlet end of flowmeter (15d) is connected with air valve (15e) by flexible pipe (15c); During described argon blowing system (15) work, dipping tube (15a) inserts in the molten steel of converter (2).
A kind of steel liquid solidification simulator in continuous casting crystallizer with argon blowing system of the utility model, described dipping tube (15a) is alumina tube or magnesia tube or tubular zirconium-oxide.The pipeline that other refractory metal oxide is made also can be used for the utility model.
A kind of steel liquid solidification simulator in continuous casting crystallizer with argon blowing system of the utility model, the position that described dipping tube (15a) inserts in molten steel is: with the vertical centerline parallel of crystallizer copper mold (1) hot side, and vertical this distance between center line 2-10cm; Insertion depth is concordant with crystallizer copper mold (1) bottom level.
A kind of steel liquid solidification simulator in continuous casting crystallizer with argon blowing system of the utility model, on described support, (13) are provided with two one end perpendicular to support plane, the first screw mandrel that the other end is connected with motor driver, the second screw mandrel, described first screw mandrel, the second screw mandrel are provided with and drive by described first screw mandrel, the second screw mandrel the shears vertically moved; Described converter (2) is arranged on described support (13) and goes up and be between described first screw mandrel, the second screw mandrel; Described throwing motor (6), vibrating motor (7) are all arranged on described shears; Be provided with thermocouple and cooling-water duct in described crystallizer copper mold (1) and vibrated vertically by described driven by vibrating motors; Described throwing motor drives one end to be connected with the throwing support of a throwing plate, and described throwing plate is in below described crystallizer copper mold; Described thermocouple is electrically connected with described data collecting system; Described cooling water system (10) is connected with peripheral hardware water system.
A kind of steel liquid solidification simulator in continuous casting crystallizer with argon blowing system of the utility model, described straight bend pipe (15b) is metal straight bend pipe.
Principle and advantage
A kind of steel liquid solidification simulator in continuous casting crystallizer with argon blowing system of the utility model, consider that molten steel temperature is high, about about 1550 DEG C, so dipping tube (15a) adopts one or more refractory oxide tubing such as aluminium oxide, magnesia, zirconia to be prepared from.And dipping tube (15a) and straight bend pipe (16b) are taked detachable to design the main cause different with material to be, the dipping tube inserting molten steel is generally disposable, substantially be difficult to reuse, and high-purity refractory oxide tubing matter is more expensive, and straight bent tube section is metal material, as stainless steel etc., low price, easily to process, therefore this detachable design can reduce high-purity refractory oxide tubing consumption, is convenient for changing simultaneously.In addition, dipping tube (15a) inserts the position of molten steel for distance crystallizer copper mold (1) hot side center line 2-10cm, the position that the degree of depth is concordant with crystallizer copper mold (1) bottom level, the main cause of its design is the base shell that dipping tube (15a) is less than that 2cm may encounter solidification of molten steel formation on crystallizer copper mold (1) hot side; Be greater than 10cm then bubble be difficult to arrive the interface of solidified shell and molten steel.In addition, monitor argon gas flow velocity with flowmeter (15d), control argon flow amount with air valve (15e), store argon gas with gas bomb (15f); Flexible pipe (15c) is adopted to connect between straight bend pipe (15b), flowmeter (15d), air valve (15e), gas bomb (15f).
The utility model is compared with device with prior art, has following advantage:
1) realize laboratory on a small scale High Temperature Simulation study the impact of Argon process in industrial continuous cast mold and generation thereof.
2) device is simple, convenient regulates and controls each technological parameter, workable.
3) experimentation consume human and material resources and financial resources less.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Argon blowing system and crystallizer copper mold relative position schematic diagram when Fig. 2 is utility model works.
Fig. 3 adopts two thermocouple temperature measurement curves apart from crystallizer copper mold hot side diverse location in the utility model experiment.
In Fig. 1, Fig. 2,1 is crystallizer copper mold, and 2 is converter, and 3 is molten steel, 4 is covering slag, and 5 is throwing plate, and 6 is throwing motor, 7 is vibrating motor, and 9 is acquisition system, and 10 is cooling water system, 12 is thermocouple, and 13 is support, and 14 is shears, 15a is dipping tube, and 5b is straight bend pipe, and 15c is flexible pipe, 15d is flowmeter, and 15e is air valve, and 15f is gas bomb; Wherein 15a, 15b, 15c, 15d, 15e, 15f form argon blowing system 15 after connecting.
In Fig. 3, No. 1 curve is the temperature recorded from the thermocouple close to crystallizer copper mold (1) hot side, and No. 2 curves are the temperature recorded from the thermocouple away from crystallizer copper mold (1) hot side.As can be seen from Figure 3 in crystallizer copper mold, temperature is cyclic fluctuation, and from device copper mold (1) hot side more close to temperature higher.
Detailed description of the invention
Below in conjunction with signal Fig. 1 and 2, and embodiment the utility model is described in further detail.
Attachedly Figure 1 shows that a kind of steel liquid solidification simulator in continuous casting crystallizer with argon blowing system, comprise support (13), converter (2), crystallizer copper mold (1), throwing motor (6), vibrating motor (7), cooling water system (10), data collecting system (9) and argon blowing system (15).Described support (13) is provided with two one end perpendicular to support plane, the first screw mandrel that the other end is connected with motor driver 8, the second screw mandrel; On described first screw mandrel, the second screw mandrel, be provided with and drive by described first screw mandrel, the second screw mandrel the shears (14) vertically moved; Described converter (2) is arranged on described support (13) and goes up and be between described first screw mandrel, the second screw mandrel; Described throwing motor (6), vibrating motor (7) are all arranged on described shears (14); Be provided with thermocouple (12) and cooling water system (10) in described crystallizer copper mold (1), and vibrated vertically by described vibrating motor (7) driving; Described throwing motor (6) drives one end to be connected with the throwing support of a throwing plate (5); Described throwing plate (5) is in described crystallizer copper mold (1) below, and described thermocouple (12) is connected with described data collecting system (9); Described cooling water system (10) is connected with peripheral hardware water system.
Described argon blowing system (15) is made up of dipping tube (15a), straight bend pipe (15b), flexible pipe (15c), flowmeter (15d), air valve (15e), gas bomb (15f).Described dipping tube (15a) and straight bend pipe (15b) take detachable to design, and are convenient for changing dipping tube (15a); Described straight bend pipe (15b), flowmeter (15c), air valve (15d), gas bomb (15e) are communicated with by flexible pipe (15f).During work, dipping tube (15a) inserts the position of molten steel for the vertical center line 2-10cm of distance crystallizer copper mold (1) hot side, and the degree of depth is concordant with crystallizer copper mold (1) bottom level.
Embodiment 1:
Below in conjunction with signal Fig. 1 and 2, a kind of steel liquid solidification simulator in continuous casting crystallizer with argon blowing system involved by the utility model is tested.
First the ultra-low-carbon steel of 50kg and 300g covering slag are loaded in converter (2); cooling water system (10) is connected with peripheral hardware water system simultaneously, and the dipping tube (15a) of argon blowing system, straight bend pipe (15b), flexible pipe (15c), flowmeter (15d), air valve (15e), gas bomb (15f) are connected successively.Then, converter (2) starts heat temperature raising, after molten steel fusing, is the dipping tube (15a) of 0.1L/min by logical argon flow, departs from 5cm place, the center of circle insert molten steel 10cm along burner hearth center line.Then, start crystallizer throwing system, (8) are driven to drive screw mandrel to rotate by motor, the crane (14) be located on leading screw is vertically moved downward, throwing motor (6), vibrating motor (7) and the throwing plate (5) linked together with throwing motor (6), vibrating motor (7) respectively on shears (14) and crystallizer copper mold (1) are located in drive, move straight down along burner hearth center line, insert in molten steel (3) and covering slag (4); When crystallizer copper mold (1) length inserted in steel and covering slag melt reaches 10cm, motor driver (8) stops action, vibrating motor (7) starts with the vibration frequency of setting and amplitude vibration, simultaneously, throwing motor (6) starts, and drives throwing (5) with the speed move distance 10cm of 1m/min; After 3s, motor driver (8) drives screw mandrel reversion, shears (14) is driven vertically to move upward, be located at the throwing motor (6) on crane (14), vibrating motor (7) and the throwing plate (5) linked together with throwing motor (6), vibrating motor (7) respectively and crystallizer copper mold (1) vertically moves upward, depart from molten steel (3) and covering slag (4); Adhere to molten steel on throwing plate (5) and covering slag will form solidification of molten steel base shell and the covering slag slag blanket with actual strand.After crystallizer copper mold is reset to original state, propose dipping tube (15a), close gas check valve (15e), complete experiment.In this experimentation; molten steel (3) and covering slag (4), to crystallizer copper mold (1) surface heating, are located at thermocouple (12) real time record crystallizer copper mold (1) hot-face temperature in crystallizer copper mold (1) and are stored in data collecting system (9).This tests the temperature gathered, as shown in Figure 3, lower than the temperature of showing in the patent of invention CN102357650A " steel liquid solidification simulator in continuous casting crystallizer " authorized, and temperature fluctuation is large, and temperature occurs multiple swarming within each vibration period, this is mainly caused by the less and discontinuous floating of bubble of bubble heat transfer coefficient; In addition, find that there is a large amount of bubbles in the cold rear strand of stove and exist, this shows have a large amount of bubble to be caught by solidification of molten steel forward position in experimentation.These results show above, and a kind of steel liquid solidification simulator in continuous casting crystallizer with argon blowing system involved by the utility model, effectively can study the impact of Argon process and generation thereof in crystallizer.
Claims (5)
1. the steel liquid solidification simulator in continuous casting crystallizer with argon blowing system, comprises support (13), converter (2), crystallizer copper mold (1), throwing motor (6), vibrating motor (7), cooling water system (10), data collecting system (9) and argon blowing system (15); It is characterized in that: described argon blowing system (15) is made up of dipping tube (15a), straight bend pipe (15b), flexible pipe (15c), flowmeter (15d), air valve (15e), gas bomb (15f); Described dipping tube (15a) noose is on straight bend pipe (15b), straight bend pipe (15b) is connected by the outlet side of flexible pipe (15c) with flowmeter (15d), and the inlet end of flowmeter (15d) is connected with air valve (15e) by flexible pipe (15c); During described argon blowing system (15) work, dipping tube (15a) inserts in the molten steel in converter (2).
2. a kind of steel liquid solidification simulator in continuous casting crystallizer with argon blowing system according to claim 1, is characterized in that: described dipping tube (15a) is alumina tube or magnesia tube or tubular zirconium-oxide.
3. a kind of steel liquid solidification simulator in continuous casting crystallizer with argon blowing system according to claim 1-2 any one, is characterized in that; The position that dipping tube (15a) inserts in molten steel is: with the vertical centerline parallel of crystallizer copper mold (1) hot side, and vertical this distance between center line 2-10cm; Insertion depth is concordant with crystallizer copper mold (1) bottom level.
4. a kind of steel liquid solidification simulator in continuous casting crystallizer with argon blowing system according to claim 1-2 any one, it is characterized in that: on described support, (13) are provided with two one end perpendicular to support plane, the first screw mandrel that the other end is connected with motor driver, the second screw mandrel, described first screw mandrel, the second screw mandrel are provided with and drive by described first screw mandrel, the second screw mandrel the shears vertically moved; Described converter (2) is arranged on described support (13) and goes up and be between described first screw mandrel, the second screw mandrel; Described throwing motor (6), vibrating motor (7) are all arranged on described shears; Be provided with thermocouple and cooling-water duct in described crystallizer copper mold (1) and vibrated vertically by described driven by vibrating motors; Described throwing motor drives one end to be connected with the throwing support of a throwing plate, and described throwing plate is in below described crystallizer copper mold; Described thermocouple is electrically connected with described data collecting system, and described cooling water system (10) is connected with peripheral hardware water system.
5. a kind of steel liquid solidification simulator in continuous casting crystallizer with argon blowing system according to claim 1-2 any one, is characterized in that: described straight bend pipe (15b) is metal straight bend pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520230592.6U CN204912695U (en) | 2015-04-16 | 2015-04-16 | Interior molten steel of continuous casting crystallizer that argon system is blown in area solidifies analogue means |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107586965A (en) * | 2016-07-06 | 2018-01-16 | 宁波江丰电子材料股份有限公司 | Smelting equipment and method of smelting |
| CN116855920A (en) * | 2023-09-05 | 2023-10-10 | 山西中设华晋铸造有限公司 | Steel strip casting process |
-
2015
- 2015-04-16 CN CN201520230592.6U patent/CN204912695U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107586965A (en) * | 2016-07-06 | 2018-01-16 | 宁波江丰电子材料股份有限公司 | Smelting equipment and method of smelting |
| CN116855920A (en) * | 2023-09-05 | 2023-10-10 | 山西中设华晋铸造有限公司 | Steel strip casting process |
| CN116855920B (en) * | 2023-09-05 | 2023-11-21 | 山西中设华晋铸造有限公司 | Steel strip casting process |
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Granted publication date: 20151230 Termination date: 20160416 |
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| CF01 | Termination of patent right due to non-payment of annual fee |