CN114799147A - Continuous casting machine tundish stopper mechanism, control system device and control method - Google Patents
Continuous casting machine tundish stopper mechanism, control system device and control method Download PDFInfo
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- CN114799147A CN114799147A CN202210529754.0A CN202210529754A CN114799147A CN 114799147 A CN114799147 A CN 114799147A CN 202210529754 A CN202210529754 A CN 202210529754A CN 114799147 A CN114799147 A CN 114799147A
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- tundish
- cross arm
- stopper rod
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- 238000009749 continuous casting Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 47
- 239000010959 steel Substances 0.000 claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 239000007788 liquid Substances 0.000 claims description 28
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 26
- 229910052786 argon Inorganic materials 0.000 claims description 13
- 238000005266 casting Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 235000007164 Oryza sativa Nutrition 0.000 claims description 4
- 235000009566 rice Nutrition 0.000 claims description 4
- RQMIWLMVTCKXAQ-UHFFFAOYSA-N [AlH3].[C] Chemical group [AlH3].[C] RQMIWLMVTCKXAQ-UHFFFAOYSA-N 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 229910052596 spinel Inorganic materials 0.000 claims description 3
- 239000011029 spinel Substances 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000007664 blowing Methods 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 5
- 241000209094 Oryza Species 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/16—Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
- B22D41/18—Stopper-rods therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/16—Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
- B22D41/20—Stopper-rod operating equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D46/00—Controlling, supervising, not restricted to casting covered by a single main group, e.g. for safety reasons
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The invention provides a tundish stopper mechanism of a continuous casting machine, a control system device and a control method, wherein the tundish stopper mechanism of the continuous casting machine comprises a driving cross arm arranged transversely and a stopper arranged on the driving cross arm vertically, the stopper is fixed on the driving cross arm through a connecting piece, one end of the connecting piece connected with the driving cross arm is provided with a first gasket, one end of the connecting piece connected with the stopper is provided with a second gasket, and the thicknesses of the first gasket and the second gasket are respectively and independently selected from 20-25 mm. The tundish stopper mechanism provided by the invention has the advantages that the thickness of the gasket is increased by redesigning the size and specification of the stopper mechanism, the deformation caused by overlong service time in a high-temperature state is avoided, the problem that the stopper fails to control operation can be reduced or eliminated by adopting a special operation method, the quality of molten steel is prevented from being influenced, and waste products are reduced.
Description
Technical Field
The invention belongs to the technical field of tundish plugs of continuous casting machines, and relates to a tundish plug mechanism, a control system device and a control method of a continuous casting machine.
Background
In the process of starting pouring in continuous casting in steel-making production, unstable factors always appear to cause the condition of waste products. The steelmaking continuous casting starting operation process is a process for verifying whether each preparation work of continuous casting is sufficient or not, or a process of trial production, so that the quality of molten steel which is poured for a period of time is often not up to the standard and is judged as a waste product, a plurality of special steel mills need to separately manage first furnace products of continuous casting and starting, and a casting blank needs to ensure a certain amount of scrap end cutting and abandonment. Because the ultra-low sulfur steel is a steel with special purposes and has strict quality requirement, because the chemical composition S content is low (S is less than or equal to 0.002 percent), the purity requirement of molten steel is high, the production difficulty is relatively large, the production cost is slightly high, the quality of the molten steel is controlled as much as possible in the production process, the waste is reduced, and a high-quality and low-price product is provided for the market.
The continuous casting stopper is one of important flow control elements in the continuous casting pouring process, controls the opening of a water gap of a tundish, adjusts the flow of molten steel flowing into a crystallizer from the tundish to maintain the stability of the liquid level of the molten steel, and realizes the flow control by controlling through a continuous casting stopper automatic control system and driving the stopper to move up and down through the action of a stopper mechanism. The stopper rod position signal comes from a crystallizer liquid level monitor, and the monitor accurately measures the liquid level height of molten steel in the crystallizer through a liquid level measuring system. The signal is provided to a stopper controller, and the controller provides the signal to a servo motor which acts on a stopper actuating mechanism so as to control the flow rate of the molten steel from the tundish to the crystallizer, thereby maintaining the stability of the liquid level of the molten steel in the crystallizer. However, after continuous casting is started, after the flow control stopper rod is opened due to some reasons, the stopper rod is not controlled in the operation process, the opening degree is reduced, molten steel is influenced to be injected into the crystallizer, the fluctuation of the liquid level of the crystallizer exceeds the standard, and waste products are generated.
CN216096378U discloses a slag-rolling-preventing continuous casting tundish stopper device, which comprises a stopper main body and a restraining ring; the inhibition ring comprises a bottom plate, a sleeve penetrates through the center of the bottom plate, and a plurality of partition plates are arranged between the outer side of the sleeve and the upper surface of the bottom plate; the outer side of the stopper rod main body is matched with the sleeve and penetrates through the sleeve, a gap is formed between the stopper rod main body and the sleeve, an anti-rotation structure is arranged between the stopper rod main body and the sleeve, and a stop table with the size larger than that of the sleeve is arranged at the lower part of the stopper rod main body.
CN206854645U discloses a device for preventing baking deformation of a continuous casting tundish stopper rod connecting piece, which comprises 2 sliding rails and 2 baffle plates, wherein the 2 sliding rails are respectively fixed on the upper surface of a tundish cover and positioned at two sides of the stopper rod, and the bottom surface of each baffle plate is provided with 2 sliding chutes in sliding connection with the 2 sliding rails; two opposite edges of the 2 baffles are respectively provided with a semicircular groove.
CN203343432U discloses an anti-blocking argon blowing integral stopper for a tundish for continuous casting, which comprises a stopper body and a stopper head, wherein an argon blowing channel is reserved in the middle, and an iron nut is embedded in the tail of the stopper body. An argon blowing nozzle is embedded in the rod head, and a section of argon blowing channel reducing area is arranged at the end close to the argon blowing channel. Blow the argon mouth afterbody and blow and form a space between the argon passageway reducing district, when inclusion or the stopper stick in the argon gas inside peel off the inclusion that forms and reach here, partly mix with and can directly fall into the space, another part is mingled with and arrives the argon mouth afterbody and also can fall into the space because its surface is smooth to prevent to blow the argon hole and block up.
In the production process, after a signal of a controller is given, the stopper rod does not act, so that the liquid level of molten steel fluctuates. The main reason is analyzed, on one hand, the stopper and the control mechanism thereof are influenced by the high-temperature environment to cause local component deformation, and the mechanism and the stopper action are influenced. After the cross arm of the stopper rod deforms, the control height of the mechanism changes, so that the stopper rod, the bolt and the mechanism are not stably matched, and the liquid level fluctuates; in the existing continuous casting, the control height of a mechanism is changed after the flat pad of a stopper rod is deformed, so that the cooperation among the stopper rod, a bolt and the mechanism is unstable, and the liquid level fluctuates; on the other hand, because the operation process is not standardized, the stopper rod is crusted at the periphery, the stopper rod is adhered, when low-sulfur steel continuous casting is performed and casting is started, the position of the stopper rod is lowered by 10mm when the liquid level fluctuates from casting, the erosion of the stopper rod head is serious, the matching precision between the stopper rod head and the water gap bowl part is poor, the stopper rod is blocked in movement, and the liquid level fluctuation is caused. And when the periphery of the stopper rod is carbonized to form a small amount of rice hulls and a large amount of steel slag is generated during production of low-sulfur steel, the steel slag is easy to solidify and is adhered to the stopper rod, movement of the stopper rod is influenced to be blocked and not to shake, and therefore flow control of the stopper rod is unstable, and liquid level fluctuation is generated.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a tundish stopper mechanism, a control system device and a control method of a continuous casting machine.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the invention provides a tundish stopper mechanism of a continuous casting machine, the tundish stopper mechanism of the continuous casting machine comprises a driving cross arm arranged transversely and a stopper arranged vertically on the driving cross arm, the stopper is fixed on the driving cross arm through a connecting piece, one end of the connecting piece connected with the driving cross arm is provided with a first gasket, one end of the connecting piece connected with the stopper is provided with a second gasket, and the thicknesses of the first gasket and the second gasket are respectively and independently selected from 20-25 mm, for example, 20mm, 21mm, 22mm, 23mm, 24mm or 25mm, but the first gasket and the second gasket are not limited to the enumerated values, and other non-enumerated values in the numerical value range are also applicable.
The tundish stopper mechanism provided by the invention has the advantages that the dimension and specification of the stopper mechanism are redesigned, the thickness of the gasket is increased, the deformation caused by overlong service time in a high-temperature state is avoided, the problem that the stopper control fails and operates uncontrollably can be reduced or eliminated by adopting a special operation method, the quality of molten steel is prevented from being influenced, and the waste products are reduced.
As a preferable technical scheme of the invention, the stopper rod is fixed at one end of the driving cross arm, the other end of the driving cross arm is in transmission connection with a driving device, and the driving device is used for driving the driving cross arm to vertically move.
In a second aspect, the invention provides a continuous casting machine tundish stopper control system device, which comprises the continuous casting machine tundish stopper mechanism of the first aspect;
a tundish is arranged below the driving cross arm, molten steel is stored in the tundish, a water gap is formed in the bottom of the tundish, one end of the stopper rod is fixed on the driving cross arm through a connecting piece, and the other end of the stopper rod is vertically plugged into the water gap.
The tundish is provided with a crystallizer below, the tundish is communicated with the crystallizer through a water gap bowl, and the driving cross arm drives the stopper rod to vertically move under the driving of the driving device so as to close or open a water gap and adjust the flow of molten steel flowing into the crystallizer.
As a preferred technical scheme of the present invention, a liquid level sensor is disposed in the crystallizer, the liquid level sensor is electrically connected to a controller, the controller controls the driving device in a feedback manner, the liquid level sensor is configured to detect a liquid level of molten steel in the crystallizer and transmit liquid level data to the controller, and the controller controls the driving device to drive the stopper rod to vertically move, so as to jump a flow rate of the molten steel flowing into the crystallizer.
In a preferred embodiment of the present invention, the stopper rod has a length of 1380 mm.
The stopper rod is designed to be 1380mm, the thickness of the stopper rod is reduced by 20mm compared with the conventional stopper rod in the prior art, and the conventional gasket is increased in thickness, so that the stopper rod mechanism is unstable in operation if the size of the stopper rod is not adjusted, and the stability of the molten steel level is further influenced. Therefore, the invention properly reduces the length of the stopper rod in order to match the increase of the thickness of the gasket, and ensures that the overall height of the stopper rod mechanism is not changed.
As a preferable technical solution of the present invention, the stopper rod includes a body and a head portion provided at one end of the body, and the head portion is inserted into the nozzle.
As a preferable technical solution of the present invention, the material of the body is aluminum carbon.
In a preferred embodiment of the present invention, the head is made of spinel.
In a third aspect, the present invention provides a method for controlling a continuous casting machine tundish stopper, wherein the continuous casting machine tundish stopper control system apparatus of the second aspect is adopted to control a continuous casting machine tundish stopper mechanism, and the control method includes:
the driving device drives the driving cross arm to vertically move so as to drive the stopper rod to vertically move and close or open the water gap, and the driving device is used for adjusting the flow of the molten steel flowing into the crystallizer.
As a preferred technical solution of the present invention, the method for controlling a tundish stopper of a continuous casting machine specifically comprises:
(1) the position of the stopper rod is adjusted, so that the stopper rod is opposite to a water port at the bottom of the tundish, and the stopper rod is ensured to be vertically plugged into the water port when moving downwards; cleaning and filling argon into the tundish;
(2) the driving cross arm is driven by the driving device to vertically move so as to gradually separate from the water gap, and the molten steel in the tundish flows into a lower crystallizer through the water gap to be poured;
(3) in the casting process, the molten steel is sampled or the temperature is measured, and the carbonized rice hulls are added into the molten steel.
It should be noted that, when the stopper rod is installed, the stopper rod installation adjustment mode is straight rod adjustment, which has the function of reducing the resistance borne by the stopper rod in the adjustment process, and the detailed adjustment process is as follows: the driving device drives the driving cross arm to ascend, so that the driving cross arm drives the stopper rod to ascend, the position of the stopper rod in the driving cross arm plug is adjusted, the head of the stopper rod is suspended above the water gap, the driving device drives the driving cross arm to vertically move downwards, the head of the stopper rod vertically falls into the bowl of the water gap, and if the head of the stopper rod cannot vertically fall into the bowl of the water gap, fine adjustment is continued, and the stopper rod is ensured to be vertically matched with the bowl of the water gap.
Compared with the prior art, the invention has the beneficial effects that:
the tundish stopper mechanism provided by the invention has the advantages that the thickness of the gasket is increased by redesigning the size and specification of the stopper mechanism, the deformation caused by overlong service time in a high-temperature state is avoided, the problem that the stopper fails to control operation can be reduced or eliminated by adopting a special operation method, the quality of molten steel is prevented from being influenced, and waste products are reduced.
Drawings
Fig. 1 is a schematic structural diagram of a tundish stopper rod control system device of a continuous casting machine according to an embodiment of the invention.
Wherein, 1-a driving cross arm; 2-a stopper rod; 3-tundish; 4-water gap; 5-a crystallizer; 6-a liquid level meter; 7-a drive device; 8-a connector; 9-a first gasket; 10-second shim.
Detailed Description
It is to be understood that in the description of the present invention, the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be taken as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
It should be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected" and "connected" in the description of the present invention are to be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The technical solution of the present invention is further explained by the following embodiments.
In one embodiment, the invention provides a tundish stopper mechanism of a continuous casting machine, as shown in fig. 1, the tundish stopper mechanism of the continuous casting machine comprises a driving cross arm 1 arranged transversely and a stopper 2 arranged vertically on the driving cross arm 1, the stopper 2 is fixed on the driving cross arm 1 through a connecting piece 8, a first gasket 9 is arranged at one end of the connecting piece 8 connected with the driving cross arm 1, a second gasket 10 is arranged at one end of the connecting piece 8 connected with the stopper 2, and the thicknesses of the first gasket 9 and the second gasket 10 are respectively and independently selected from 20-25 mm.
The tundish stopper mechanism provided by the invention has the advantages that the thickness of the gasket is increased by redesigning the size and specification of the stopper 2 mechanism, the deformation caused by overlong service time in a high-temperature state is avoided, the problem that the stopper 2 is not controlled in control failure and operation can be reduced or eliminated by adopting a special operation method, the quality of molten steel is prevented from being influenced, and waste products are reduced.
Further, the stopper rod 2 is fixed at one end of the driving cross arm 1, the other end of the driving cross arm 1 is connected with a driving device 7 in a transmission manner, and the driving device 7 is used for driving the driving cross arm 1 to vertically move.
In another embodiment, the invention provides a continuous casting machine tundish stopper rod control system device, which comprises the continuous casting machine tundish stopper rod mechanism as shown in fig. 1;
a tundish 3 is arranged below the driving cross arm 1, molten steel is stored in the tundish 3, a nozzle 4 is arranged at the bottom of the tundish 3, one end of the stopper rod 2 is fixed on the driving cross arm 1 through a connecting piece 8, and the other end of the stopper rod 2 is vertically plugged into the nozzle 4.
A crystallizer 5 is arranged below the tundish 3, the tundish 3 is communicated with the crystallizer 5 through a water gap 4 bowl, and the driving cross arm 1 drives the stopper rod 2 to vertically move under the driving of the driving device 7 so as to close or open the water gap 4 and adjust the flow of molten steel flowing into the crystallizer 5.
Further, a liquid level sensor 6 is arranged in the crystallizer 5, the liquid level sensor 6 is electrically connected with a controller, the controller controls the driving device 7 in a feedback mode, the liquid level sensor 6 is used for detecting the liquid level of the molten steel in the crystallizer 5 and transmitting liquid level data to the controller, and the controller controls the driving device 7 to drive the stopper rod 2 to vertically move so as to jump the flow rate of the molten steel flowing into the crystallizer 5.
Further, the stopper 2 has a length of 1380 mm.
The stopper rod 2 is designed to be 1380mm, the thickness of the stopper rod is reduced by 20mm compared with the conventional stopper rod 2 in the prior art, and the thickness of the conventional gasket is increased, so that the stopper rod 2 mechanism is unstable in operation if the size of the stopper rod 2 is not adjusted, and the stability of the molten steel level is further influenced. Therefore, the length of the stopper rod 2 is properly reduced to ensure that the overall height of the stopper rod 2 mechanism is not changed in order to match the increase of the thickness of the gasket.
Further, the stopper rod 2 includes a body and a head portion provided at one end of the body, and the head portion is inserted into the nozzle 4.
Further, the material of the body is aluminum carbon.
Further, the material of the head is spinel.
In another embodiment, the present invention provides a method for controlling a continuous casting machine tundish stopper, which uses the above continuous casting machine tundish stopper control system apparatus to control a continuous casting machine tundish stopper mechanism, and the method includes:
the driving device 7 drives the driving cross arm 1 to vertically move, so as to drive the stopper rod 2 to vertically move, and the water gap 4 is closed or opened for regulating the flow rate of the molten steel flowing into the crystallizer 5.
Further, the method for controlling the stopper rod of the tundish of the continuous casting machine specifically comprises the following steps:
(1) the position of the stopper 2 is adjusted, so that the stopper 2 is opposite to the water gap 4 at the bottom of the tundish 3, and the stopper 2 is ensured to be vertically plugged into the water gap 4 when moving downwards; cleaning and filling argon into the tundish 3;
(2) the driving cross arm 1 is driven by a driving device 7 to vertically move so as to gradually separate from the water gap 4, and the molten steel in the tundish 3 flows into a crystallizer 5 below through the water gap 4 to be poured;
(3) in the casting process, the molten steel is sampled or the temperature is measured, and the carbonized rice hulls are added into the molten steel.
It should be noted that, when the stopper rod 2 is installed, the installation and adjustment mode of the stopper rod 2 is straight rod adjustment, which is used for reducing the resistance borne by the stopper rod 2 in the adjustment process, and the detailed adjustment process is as follows: the driving device 7 drives the driving cross arm 1 to ascend, so that the driving cross arm 1 drives the stopper rod 2 to ascend, the position of the stopper rod 2 in the plug of the driving cross arm 1 is adjusted, the head of the stopper rod 2 is suspended above the water gap 4, the driving device 7 drives the driving cross arm 1 to vertically move downwards, the head of the stopper rod 2 vertically falls into the bowl of the water gap 4, and if the head of the stopper rod 2 cannot vertically fall into the bowl of the water gap 4, fine adjustment is continued, and the stopper rod 2 is ensured to be vertically matched with the bowl of the water gap 4.
The applicant declares that the above description is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be understood by those skilled in the art that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are within the scope and disclosure of the present invention.
Claims (10)
1. The tundish stopper mechanism of the continuous casting machine is characterized by comprising a driving cross arm and a stopper, wherein the driving cross arm is transversely arranged, the stopper is vertically arranged on the driving cross arm, the stopper is fixed on the driving cross arm through a connecting piece, a first gasket is arranged at one end, connected with the driving cross arm, of the connecting piece, a second gasket is arranged at one end, connected with the stopper, of the connecting piece, and the thicknesses of the first gasket and the second gasket are respectively and independently selected from 20-25 mm.
2. The tundish stopper mechanism of continuous casting machine according to claim 1, wherein the stopper is fixed at one end of the driving cross arm, and the other end of the driving cross arm is in transmission connection with a driving device which is used for driving the driving cross arm to move vertically.
3. A continuous caster tundish stopper control system apparatus, comprising the continuous caster tundish stopper mechanism of claim 1 or 2;
a tundish is arranged below the driving cross arm, molten steel is stored in the tundish, a water gap is formed in the bottom of the tundish, one end of the stopper rod is fixed on the driving cross arm through a connecting piece, and the other end of the stopper rod is vertically plugged into the water gap;
a crystallizer is arranged below the tundish, the tundish is communicated with the crystallizer through a water gap bowl, and the driving cross arm drives the stopper rod to vertically move so as to close or open a water gap and adjust the flow of molten steel flowing into the crystallizer.
4. The system apparatus of claim 3, wherein a liquid level sensor is disposed in the mold, the liquid level sensor is electrically connected to the controller, the controller controls the driving device in a feedback manner, the liquid level sensor is used for detecting the liquid level of the molten steel in the mold and transmitting the liquid level data to the controller, and the controller controls the driving device to drive the stopper rod to move vertically, so as to jump the flow rate of the molten steel flowing into the mold.
5. A continuous caster tundish stopper control system apparatus according to claim 3 or claim 4, wherein the stopper is 1380mm in length.
6. A continuous caster tundish stopper control system means according to any one of claims 3 to 5, wherein the stopper comprises a body and a head disposed at one end of the body, the head being inserted into the nozzle.
7. The caster tundish stopper rod control system apparatus of claim 6 wherein the material of the body is aluminum carbon.
8. The continuous caster tundish stopper rod control system apparatus of claim 6, wherein the head material is spinel.
9. A method for controlling a tundish stopper of a continuous casting machine, which is characterized in that a tundish stopper mechanism of the continuous casting machine is controlled by using the tundish stopper control system device of the continuous casting machine according to any one of claims 3 to 8, and the method comprises the following steps:
the driving device drives the driving cross arm to vertically move so as to drive the stopper rod to vertically move and close or open the water gap, and the driving device is used for adjusting the flow of the molten steel flowing into the crystallizer.
10. The method for controlling the tundish stopper of the continuous casting machine according to claim 9, wherein the method for controlling the tundish stopper of the continuous casting machine specifically comprises the following steps:
(1) the position of the stopper rod is adjusted, so that the stopper rod is opposite to a water port at the bottom of the tundish, and the stopper rod is ensured to be vertically plugged into the water port when moving downwards; cleaning and filling argon into the tundish;
(2) the driving cross arm is driven by the driving device to vertically move so as to gradually separate from the water gap, and the molten steel in the tundish flows into a lower crystallizer through the water gap to be poured;
(3) in the casting process, the molten steel is sampled or the temperature is measured, and the carbonized rice hulls are added into the molten steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210529754.0A CN114799147B (en) | 2022-05-16 | Tundish stopper mechanism of continuous casting machine, control system device and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210529754.0A CN114799147B (en) | 2022-05-16 | Tundish stopper mechanism of continuous casting machine, control system device and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114799147A true CN114799147A (en) | 2022-07-29 |
| CN114799147B CN114799147B (en) | 2024-05-31 |
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| CN208644057U (en) * | 2018-07-24 | 2019-03-26 | 邯郸钢铁集团有限责任公司 | A kind of mechanical transverse arm mechanism for preventing continuous casting tundish stopper from skidding off |
| CN215697958U (en) * | 2021-01-18 | 2022-02-01 | 江阴兴澄特种钢铁有限公司 | Fixing device for stopper rod mechanism of multi-strand casting machine |
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| CN207479590U (en) * | 2017-11-14 | 2018-06-12 | 华耐国际（宜兴）高级陶瓷有限公司 | A kind of anti-gas-leak stopper of novel sealing structure |
| CN208644057U (en) * | 2018-07-24 | 2019-03-26 | 邯郸钢铁集团有限责任公司 | A kind of mechanical transverse arm mechanism for preventing continuous casting tundish stopper from skidding off |
| CN215697958U (en) * | 2021-01-18 | 2022-02-01 | 江阴兴澄特种钢铁有限公司 | Fixing device for stopper rod mechanism of multi-strand casting machine |
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