CN214977728U - Molten steel casting flow control system for improving internal quality of large steel ingot - Google Patents
Molten steel casting flow control system for improving internal quality of large steel ingot Download PDFInfo
- Publication number
- CN214977728U CN214977728U CN202120760860.0U CN202120760860U CN214977728U CN 214977728 U CN214977728 U CN 214977728U CN 202120760860 U CN202120760860 U CN 202120760860U CN 214977728 U CN214977728 U CN 214977728U
- Authority
- CN
- China
- Prior art keywords
- molten steel
- steel
- sliding plate
- control system
- casting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Continuous Casting (AREA)
Abstract
The utility model provides an improve molten steel casting flow control system of big steel ingot internal quality, control system includes ladle and ingot mould, still includes: the molten steel conveying system is respectively connected with the steel ladle and the ingot mould; the upper part of the sliding mechanism is communicated with a tapping liquid hole of a ladle through an upper nozzle, the lower part of the sliding mechanism is communicated with a molten steel conveying system through a lower nozzle, a sliding plate is arranged in the sliding mechanism, and the opening degree is adjusted through the position of the sliding plate to control the flow rate of molten steel; the molten steel flow control system comprises a PLC controller, a molten steel flow controller, a weighing system, a hydraulic station and an oil cylinder. Compared with the existing die casting method, the automatic control system is more controllable and convenient to operate, the quality of steel ingots is improved, the automatic control system can be popularized to the casting of small steel ingots, and the stability of the quality of steel products is improved.
Description
Technical Field
The utility model belongs to the technical field of ferrous metallurgy, concretely relates to improve molten steel casting flow control system of big steel ingot internal quality.
Background
With the development and use of national large shield machines, bearings for large offshore wind power, large railway construction equipment, large forging and pressing molds and other equipment, the casting of large-sized die-cast steel ingots becomes a trend, the conventional casting process of small ingots cannot meet the casting of large steel ingots, various defects are inevitably generated by the conventional casting process of small ingots, and the use requirement cannot be met, so that the development of a casting process of single-cast large steel ingots meeting the use requirement is urgent.
The current die casting technology is that the opening degree of a sliding plate in a steel ladle sliding mechanism is manually controlled through an oil cylinder to achieve the purpose of controlling the flow rate of molten steel, so that the flow rate of the molten steel entering a steel ingot mould is controlled, the quality of a steel ingot is directly influenced by the flow rate of the molten steel entering the steel ingot mould, the quality of rolled/forged steel is finally influenced, and the quality evaluation indexes of the steel comprise the quantity of inclusions in the steel, the size of the inclusions, component segregation, the low-power quality of the steel and the like.
The conventional small steel ingot has the characteristics in casting: firstly, casting a plurality of steel ingots in a disc, wherein 2-10 steel ingots or more are generally arranged on one chassis; one middle pouring pipe corresponds to a plurality of ingot moulds; and thirdly, the influence of the adjustment of the flow of the molten steel on the fluctuation of the molten steel level in a single ingot mould is small.
The characteristics of the large steel ingot during casting are as follows: firstly, under the influence of the size of the ingot mould, the size of the ingot mould is larger, and one chassis is provided with a steel ingot; one middle injection pipe corresponds to one ingot mould; and thirdly, the influence of the flow of the molten steel on the molten steel level in the ingot mould is large, turbulence is easy to form, and the fluctuation of the molten steel level is large.
The casting of large ingots using the casting process of small ingots has the following disadvantages: the flow of the molten steel in the sliding plate hole of the steel ladle sliding mechanism is equal to that of the molten steel entering the ingot mold, and the size of the sliding plate hole of the sliding mechanism is manually adjusted, so that the flow of the molten steel entering the ingot mold is not accurate enough, and the influence on the quality of a steel ingot is large; secondly, the pouring flow control is required to be adjusted along with the casting in the die casting process so as to improve the quality of the steel ingot, and if the opening degree of the sliding plate hole of the steel ladle sliding mechanism is adjusted for a plurality of times, the steel ingot mould directly causes the large fluctuation of the steel liquid level in the steel ingot mould, which is not beneficial to the control of impurities, composition segregation and low-power quality in the steel ingot.
Therefore, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an improve molten steel casting flow control system of big steel ingot internal quality to solve at least that the big steel ingot molten steel of present single casting pours flow control in-process control accuracy not high, control method is improper, is unfavorable for the problem that the internal quality of steel ingot improves.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides an improve molten steel casting flow control system of big steel ingot internal quality, includes ladle and ingot mould, and control system still includes:
the molten steel conveying system is respectively connected with the steel ladle and the ingot mold, and the molten steel in the steel ladle is conveyed into the ingot mold through the molten steel conveying system;
the upper part of the sliding mechanism is communicated with a tapping liquid hole of a ladle through an upper nozzle, the lower part of the sliding mechanism is communicated with a molten steel conveying system through a lower nozzle, a sliding plate is arranged in the sliding mechanism, and the opening degree is adjusted through the position of the sliding plate to control the flow rate of molten steel;
the molten steel flow control system comprises a PLC (programmable logic controller), a molten steel flow controller, a hydraulic station and an oil cylinder, wherein the output end of the oil cylinder is connected with a sliding mechanism and used for driving the displacement of a sliding plate, the input end of the oil cylinder is connected with the hydraulic station, the PLC is respectively electrically connected with the hydraulic station and the molten steel flow controller, a molten steel flow regulating valve is arranged on the molten steel flow controller and acts on the hydraulic station through the regulating valve and the PLC, the oil amount in the oil cylinder is controlled and output, and the opening degree of the sliding plate is adjusted.
Preferably, the molten steel conveying system comprises a middle injection pipe and a base plate, the middle injection pipe is vertically arranged below the sliding mechanism, the upper part of the base plate is connected with the bottom of the middle injection pipe, and the ingot mold is arranged on the base plate;
hollow runner bricks are arranged in the middle injection pipe and the chassis, and form runner channels.
In the molten steel casting flow control system for improving the internal quality of the large steel ingot, preferably, the sliding mechanism sequentially comprises an upper sliding plate, a sliding plate and a lower sliding plate from top to bottom, through holes are formed in the upper sliding plate, the sliding plate and the lower sliding plate, the upper sliding plate is communicated with an upper water gap, the lower sliding plate is communicated with a lower water gap, the sliding plate is arranged in a sliding frame, the free end of a piston rod of the oil cylinder extends into the sliding frame, and the piston rod can push the sliding plate and pull the sliding frame to move.
In the molten steel casting flow control system for improving the internal quality of a large steel ingot as above, preferably, the through-hole of the upper sliding plate and the through-hole of the sliding plate have an overlapping region; the through-hole of the sliding plate and the through-hole of the lower sliding plate also have an overlapping area.
In the molten steel casting flow control system for improving the internal quality of the large steel ingot, preferably, the regulating valve is provided with a plurality of gear switches, and different gear switches control different oil quantities conveyed into the oil cylinder.
In the molten steel casting flow control system for improving the internal quality of the large steel ingot, preferably, the regulating valve comprises three gear regulating positions and a closing position, and the three gear regulating positions are respectively used for controlling the flow of molten steel when the casting is started, in the casting process and when the molten steel is cast to the opening section of the steel ingot mold.
Preferably, the molten steel flow controller is further provided with a hydraulic starting valve which is used for controlling the on-off of the oil delivery process of the oil cylinder.
Preferably, the steel ladle is provided with a weighing system, and the molten steel flow controller is provided with a flow display.
Has the advantages that:
the utility model discloses an improve molten steel casting flow control system of big steel ingot internal mass has following beneficial effect:
(1) the control system of the utility model comprises a molten steel conveying system, a sliding mechanism and a molten steel flow control system, the oil inlet quantity of the oil cylinder can be regulated and controlled through the gear setting of the regulating valve, and further the opening degree of the sliding plate is controlled, and the molten steel flow in the steel ladle can be controlled; the liquid level fluctuation in the steel ingot mould can be reduced when the large steel ingot is cast, and the quality of steel is improved.
(2) The opening degree of the oil cylinder when the casting is started is set, namely the flow of the molten steel when the casting is started is controlled, so that the casting success rate and the quality of the tail part of the steel ingot are effectively improved; the flow of the molten steel is regulated for the second time at a proper time, so that the fluctuation of the quality of the steel ingot caused by untimely regulation or too early regulation is avoided; when the molten steel is cast to the cap opening section, the flow of the molten steel is adjusted for the third time, so that the condition of larger or smaller adjustment is avoided.
(3) The method uses an automatic control system, the casting process can reach a one-key operation mode, and compared with the existing die casting method (manually adjusting the opening degree of the oil cylinder by experience), the method is more controllable and more convenient to operate, and the quality of steel ingots is improved.
(4) The method for controlling the molten steel casting flow can be popularized to the casting of small steel ingots, the automation of the small steel ingot casting is realized, and the stability of the steel quality of the small steel ingots is improved.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. Wherein:
fig. 1 is a schematic structural view of a molten steel casting flow control system according to an embodiment of the present invention (an upper nozzle and a lower nozzle are not shown);
FIG. 2 is a schematic structural view of a connection portion between the sliding mechanism and the cylinder in FIG. 1;
FIG. 3 is a schematic diagram of the regulator valve of FIG. 1;
fig. 4 is a process curve of three times adjustment of the method for controlling the flow rate of molten steel casting according to the embodiment of the present invention.
In the figure: 1. a ladle; 2. a water feeding port; 3. a sliding mechanism; 31. an upper slide plate; 32. a sliding plate; 33. a lower slide plate; 34. a slide frame; 4. a water outlet; 5. an oil cylinder; 51. a piston rod; 6. a middle injection pipe; 7. a chassis; 8. a runner brick; 9. an ingot mold; 91. a cap section; 10. a hydraulic station; 11. a PLC controller; 12. a molten steel flow controller; 121. adjusting a valve; 122. a hydraulic trigger valve; 123. a flow display; 13. an oil pipeline; 14. a weighing system.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and do not require that the present invention must be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense, and may be, for example, either fixed or detachable; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.
As shown in fig. 1 to 4, according to an embodiment of the present invention, a molten steel casting flow control system and method for improving the internal quality of a large steel ingot are provided.
The utility model discloses a casting principle of die-cast steel ingot: when the sliding plate 32 in the sliding mechanism 3 below the steel ladle 1 is pushed and pulled by the piston rod 51 of the oil cylinder 5, the through hole of the sliding plate 32 is opened to a certain degree, and the molten steel enters the channel of the steel runner 8 in the middle pouring pipe 6 and the chassis 7 through the opening of the sliding plate 32 under the action of static pressure and finally enters the ingot mold 9, so that the purpose of casting steel ingots is achieved.
The flow of molten steel which is cast in the die casting process directly influences the success of casting and the quality of the tail part of a steel ingot, the flow of the molten steel must be reasonably controlled within a range when the casting is started, particularly, only one large ingot mould 9 is arranged on a chassis 7 for casting, the impact force of the molten steel is large, the turbulent flow is easy to form, the quality is not controlled, and therefore the flow of the molten steel when the casting is started needs to be adjusted in place at one time; along with the casting, the amount of the molten steel in the ingot mould 9 is gradually increased, the static pressure of the molten steel in the ingot mould 9 is increased, the flow of the molten steel in the steel ladle 1 is not enough to offset the static pressure of the molten steel in the ingot mould 9, the flow of the molten steel needs to be adjusted for the second time, but the adjustment of the flow of the molten steel for the second time also needs a range value, the mass of a steel ingot is influenced if the range value is larger, and the casting fails if the range value is smaller; when molten steel is cast to the cap opening section 91 of the ingot mold 9, steel ingots need to be fed, so that the flow rate of the molten steel needs to be adjusted for the third time, feeding of the cap openings is an important method for controlling shrinkage cavities of the steel ingots and low-power quality of steel, the feeding effect cannot be achieved when the flow rate of the molten steel is larger, casting failure can be caused when the flow rate of the molten steel is smaller, and therefore the flow rate of the molten steel for the third time also needs to be within a certain range. The flow of the molten steel in the third step is different in size requirement, the manual control precision is not accurate enough, and the precision and the time for controlling the flow of the molten steel have important effects on improving the quality of steel.
The utility model discloses an improve molten steel casting flow control system of big steel ingot internal mass, including ladle 1 and ingot mould 9, still include: a molten steel conveying system, a sliding mechanism 3 and a molten steel flow control system.
The molten steel conveying system is respectively connected with the steel ladle 1 and the ingot mould 9, and the molten steel in the steel ladle 1 is conveyed into the ingot mould 9 through the molten steel conveying system.
The steel ladle 1 is provided with a weighing system 14 for monitoring the weight of the molten steel in the steel ladle 1 in real time and carrying out statistical calculation on the flow of the molten steel.
The upper part of the sliding mechanism 3 is communicated with a molten steel outlet of the ladle 1 through an upper nozzle 2, the lower part of the sliding mechanism 3 is communicated with a molten steel conveying system through a lower nozzle 4, a sliding plate 32 is arranged in the sliding mechanism 3, and the opening degree is adjusted through the position of the sliding plate 32 to control the flow rate of the molten steel.
In the specific embodiment of the utility model, the molten steel conveying system comprises a central injection pipe 6 and a chassis 7, wherein the central injection pipe 6 is vertically arranged and arranged below the sliding mechanism 3, the bottom of the central injection pipe 6 is connected with the upper part of the chassis 7, the upper part of the central injection pipe 6 is connected with the sliding mechanism 3 through a lower nozzle 4, and an ingot mold 9 is arranged on the chassis 7; for large ingot casting, only one ingot mould 9 is arranged on one chassis 7. Hollow runner bricks 8 are arranged in the middle injection pipe 6 and the chassis 7, and the hollow runner bricks 8 form runner channels.
The utility model discloses an in the concrete embodiment, slide mechanism 3 includes slide 31 from last to down in proper order, sliding plate 32 and lower slide 33, slide 31, all be provided with the through-hole on slide 32 and the lower slide 33, slide 31 and upper nozzle 2 intercommunication, upper nozzle 2 imbeds inside upper slide 31, lower slide 33 and lower nozzle 4 intercommunication, lower nozzle 4 also imbeds to the inside of lower slide 33, sliding plate 32 sets up in sliding frame 34, the piston rod 51 free end of hydro-cylinder 5 stretches into in sliding frame 34, piston rod 51 can promote sliding plate 32 and pulling sliding frame 34 displacement. Thereby realizing the control of the size of the through hole of the sliding plate 32 and further controlling the flow of the molten steel.
The through-hole of the upper slide plate 31 and the through-hole of the slide plate 32 have an overlapping area; the through-hole of the slide plate 32 and the through-hole of the lower slide plate 33 also have an overlapping area. Molten steel flowing out of the upper nozzle 2 of the ladle 1 sequentially passes through the through hole of the upper sliding plate 31, the through hole of the sliding plate 32, the through hole of the lower sliding plate 33, the lower nozzle 4 and the steel flowing channel and finally enters the ingot mold 9.
The molten steel flow control system comprises a PLC (programmable logic controller) 11, a molten steel flow controller 12, a hydraulic station 10 and an oil cylinder 5, the output end of the oil cylinder 5 is connected with a sliding mechanism 3, the output end is used for driving the sliding plate 32 to move, the input end of the oil cylinder 5 is connected with the hydraulic station 10, the PLC 11 is respectively electrically connected with the hydraulic station 10 and the molten steel flow controller 12, a molten steel flow regulating valve 121 is arranged on the molten steel flow controller 12, the molten steel flow regulating valve acts on the hydraulic station 10 through the regulating valve 121 and the PLC 11, the oil amount in the oil cylinder 5 is controlled and conveyed, and the opening degree of the sliding plate 32 is adjusted. The hydraulic station 10 delivers oil into the cylinders 5 through oil delivery pipes 13, driving the piston rods 51 to move.
The embodiment of the utility model provides an in, governing valve 121 is provided with a plurality of gear switches, and different gear switch control carry the different oil mass that gets into in the hydro-cylinder 5. Specifically, the regulating valve 121 includes three shift regulating positions and a closed position, and the three shift regulating positions are used for controlling the flow of molten steel when casting is started, during casting, and when the molten steel is cast to the cap section 91 of the ingot mold 9. The single gear adjusting positions are sequentially arranged from left to right, the adjusting valve 121 is arranged in a rotary switch mode, and the two closed positions are arranged on the leftmost side and the rightmost side respectively. When the adjusting valve 121 is rotated to the gear 1, the piston rod 51 of the oil cylinder 5 drives the sliding plate 32 to adjust to a certain opening degree, so that the molten steel flow control during pouring is started; when the adjusting valve 121 rotates to a gear 2, the piston rod 51 of the oil cylinder 5 drives the sliding plate 32 again to adjust the opening degree, so that the opening degree is adjusted for the second molten steel flow adjustment in the casting process; similarly, when the molten steel flow is visually measured and poured into the cap section 91 of the ingot mold 9, the regulating valve 121 is rotated to the gear 3 for the third adjustment of the molten steel flow. The PCL controller is connected with the molten steel flow controller 12 and the hydraulic station 10 to establish an automatic molten steel flow control system, and a one-key operation mode can be achieved in the casting process.
In the specific embodiment of the present invention, the molten steel flow controller 12 is further provided with a hydraulic starting valve 122, and the hydraulic starting valve 122 is used for controlling the on-off of the oil delivery process of the oil cylinder 5; preferably, the molten steel flow controller 12 is provided with a flow display 123. The utility model provides a flow display 123 can show two numerical values of volume, a settlement flow value, the actual flow value of a casting in-process.
The utility model also provides an improve the molten steel casting flow control method of big steel ingot internal quality, this control method's theory of operation: the hydraulic station 10 is connected with the oil cylinder 5 through an oil pipeline 13 by connecting a programmable logic controller (PLC controller 11) with a molten steel flow controller 12 and connecting the programmable logic controller (PLC controller 11) with the hydraulic station 10, and the opening degree of the oil cylinder 5 is controlled to reach the opening degree of a sliding plate 32 in the sliding mechanism 3, so that the flow of molten steel entering the ingot mold 9 is controlled.
The control method comprises the following steps:
step one, setting the flow of molten steel when the ingot mould 9 starts casting.
And step two, when the molten steel static pressure in the ingot mould 9 is increased and the molten steel flow in the steel ladle 1 is not enough to offset the molten steel static pressure in the ingot mould 9, carrying out secondary molten steel flow adjustment.
And step three, when the molten steel is cast to the cap section 91 of the ingot mold 9, performing third molten steel flow adjustment.
The utility model discloses a control method of big steel ingot casting process molten steel flow of single casting's molten steel flow control requirement of cubic specifically is: when the casting is started, the flow rate of the molten steel is 750-1100 kg/min, and the casting time is 5-7 min; the flow of the molten steel after the flow of the molten steel is adjusted for the second time is 1500-2000 kg/min, and the casting time is 10-25 min; the flow of the molten steel after the flow of the molten steel is adjusted for the third time is 400-800 kg/min, and the casting time is 6-10 min. The casting flow and the casting time are only one large ingot mould 9 in the chassis 7, and the weight of the steel ingot in the ingot mould 9 is 25-45 tons. When the mass of the steel ingot is more than 45 tons, the method is suitable for other pouring flow and time control processes.
The utility model discloses a control system can be according to following step when concrete operation: first, the hydraulic starting valve 122 is opened, even if the oil cylinder 5 is in a working state; and secondly, rotating the oil cylinder regulating valve 121 to a gear 1 after the steel ladle 1 is aligned with the middle injection pipe 6, rotating to a gear 2 after casting for 5-7 min, rotating to a gear 3 after casting for 10-25 min, and rotating to a closed position 2 after casting for 6-10 min.
The utility model discloses a molten steel casting flow control system utilizes current visual die casting molten steel flow display, designs a molten steel flow control method that satisfies the casting technology of the big steel ingot of single pouring, and this method makes things convenient for the field operation, does not have dangerous hidden danger. The control method of the molten steel flow can achieve the following steps: the steel has the advantages that impurities are not generated in the large steel ingot, the low-power quality of the steel meets GB/T979-2001 'rating diagram of low-power structure defects of structural steel', and the segregation is minimized.
In conclusion, (1) the control system of the utility model can regulate and control the oil inlet amount of the oil cylinder through the gear setting of the regulating valve, further control the opening degree of the sliding plate, and can control the flow of the molten steel in the steel ladle; the liquid level fluctuation in the steel ingot mould can be reduced when the large steel ingot is cast, and the quality of steel is improved.
(2) The opening degree of the oil cylinder when the casting is started is set, namely the flow of the molten steel when the casting is started is controlled, so that the casting success rate and the quality of the tail part of the steel ingot are effectively improved; the flow of the molten steel is regulated for the second time at a proper time, so that the fluctuation of the quality of the steel ingot caused by untimely regulation or too early regulation is avoided; when the molten steel is cast to the cap opening section, the flow of the molten steel is adjusted for the third time, so that the condition of larger or smaller adjustment is avoided.
(3) The method uses an automatic control system, the casting process can reach a one-key operation mode, and compared with the existing die casting method (manually adjusting the opening degree of the oil cylinder by experience), the method is more controllable and more convenient to operate, and the quality of steel ingots is improved.
(4) The method for controlling the molten steel casting flow can be popularized to the casting of small steel ingots, the automation of the small steel ingot casting is realized, and the stability of the steel quality of the small steel ingots is improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides an improve molten steel casting flow control system of big steel ingot internal quality, includes ladle and ingot mould, its characterized in that, control system still includes:
the molten steel conveying system is respectively connected with the steel ladle and the ingot mould, and the molten steel in the steel ladle is conveyed into the ingot mould through the molten steel conveying system;
the upper part of the sliding mechanism is communicated with a tapping liquid hole of a ladle through an upper water gap, the lower part of the sliding mechanism is communicated with the molten steel conveying system through a lower water gap, a sliding plate is arranged in the sliding mechanism, and the opening degree is adjusted through the position of the sliding plate to control the flow rate of molten steel;
the molten steel flow control system comprises a PLC (programmable logic controller), a molten steel flow controller, a hydraulic station and an oil cylinder, wherein the output end of the oil cylinder is connected with the sliding mechanism and used for driving the sliding plate to move, the input end of the oil cylinder is connected with the hydraulic station, the PLC is respectively electrically connected with the hydraulic station and the molten steel flow controller, a molten steel flow regulating valve is arranged on the molten steel flow controller, and the regulating valve and the PLC act on the hydraulic station to control the oil amount conveyed into the oil cylinder so as to regulate the opening degree of the sliding plate.
2. The molten steel casting flow control system for improving the internal quality of a large steel ingot according to claim 1, wherein the molten steel delivery system comprises a middle injection pipe and a base plate, the middle injection pipe is vertically arranged below the sliding mechanism, the upper part of the base plate is connected with the bottom of the middle injection pipe, and the ingot mold is arranged on the base plate;
hollow runner bricks are arranged in the middle injection pipe and the chassis, and the hollow runner bricks form runner channels.
3. The molten steel casting flow control system for improving the internal quality of a large steel ingot according to claim 2, wherein the sliding mechanism comprises an upper sliding plate, a sliding plate and a lower sliding plate from top to bottom in sequence, the upper sliding plate, the sliding plate and the lower sliding plate are all provided with through holes, the upper sliding plate is communicated with an upper water gap, the lower sliding plate is communicated with a lower water gap, the sliding plate is arranged in a sliding frame, the free end of a piston rod of the oil cylinder extends into the sliding frame, and the piston rod can push the sliding plate and pull the sliding frame to move.
4. A molten steel casting flow control system improving the internal quality of a large steel ingot according to claim 3, wherein the through-hole of the upper sliding plate and the through-hole of the sliding plate have an overlapping area; the through-hole of the slide plate and the through-hole of the lower slide plate also have an overlapping area.
5. The molten steel casting flow control system for improving the internal quality of a large steel ingot according to claim 1, wherein the regulating valve is provided with a plurality of gear switches, and different gear switches control different amounts of oil delivered into the oil cylinder.
6. The molten steel casting flow control system for improving the internal quality of a large steel ingot as claimed in claim 5, wherein the regulating valve comprises three shift regulating positions and a closing position, and the three shift regulating positions are respectively used for controlling the flow of molten steel at the beginning of casting, during casting and when the molten steel is cast to the cap opening section of the steel ingot mold.
7. The molten steel casting flow control system for improving the internal quality of a large steel ingot according to claim 1, wherein a hydraulic starting valve is further arranged on the molten steel flow controller and used for controlling the on-off of the oil cylinder in the oil conveying process.
8. The molten steel casting flow control system for improving the internal quality of a large steel ingot according to claim 1, wherein a weighing system is arranged on the ladle, and a flow display is arranged on the molten steel flow controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120760860.0U CN214977728U (en) | 2021-04-14 | 2021-04-14 | Molten steel casting flow control system for improving internal quality of large steel ingot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120760860.0U CN214977728U (en) | 2021-04-14 | 2021-04-14 | Molten steel casting flow control system for improving internal quality of large steel ingot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214977728U true CN214977728U (en) | 2021-12-03 |
Family
ID=79137074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120760860.0U Active CN214977728U (en) | 2021-04-14 | 2021-04-14 | Molten steel casting flow control system for improving internal quality of large steel ingot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214977728U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113102742A (en) * | 2021-04-14 | 2021-07-13 | 大冶特殊钢有限公司 | Molten steel casting flow control system and method for improving internal quality of large steel ingot |
-
2021
- 2021-04-14 CN CN202120760860.0U patent/CN214977728U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113102742A (en) * | 2021-04-14 | 2021-07-13 | 大冶特殊钢有限公司 | Molten steel casting flow control system and method for improving internal quality of large steel ingot |
| CN113102742B (en) * | 2021-04-14 | 2024-06-07 | 大冶特殊钢有限公司 | Molten steel casting flow control system and method for improving internal quality of large steel ingot |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211489543U (en) | Automatic slag adding device for casting powder of square billet continuous casting crystallizer | |
| CN106513617A (en) | Device and method for improving casting blank quality of continuous casting production | |
| CN108326251B (en) | Method for casting tundish of small square billet continuous casting machine of steelmaking enterprise by using fixed diameter nozzle | |
| CN109304432B (en) | Single-point unbalanced protection casting device for ultrathin large-size aluminum-containing steel special-shaped blank and using method | |
| CN214977728U (en) | Molten steel casting flow control system for improving internal quality of large steel ingot | |
| CN201098734Y (en) | Plug-stick bottom casting type molten iron pouring ladle | |
| CN109420747B (en) | High-yield automatic capping process for slab caster | |
| CN103464699A (en) | Method for increasing success rate of heat exchange of continuous casting machine tundish | |
| CN104249138A (en) | Argon blowing automatic control method of continuous casting crystallizer | |
| CN105251954B (en) | A kind of ingot steel casting mould and pouring procedure | |
| CN113084113B (en) | Different steel type mixed casting method suitable for slab caster | |
| CN107570674A (en) | Billet continuous casting sizing automatic casting control method | |
| CN207325885U (en) | A kind of new pouring gate structure of Big Steel Castings steel pipe casting | |
| CN113102742B (en) | Molten steel casting flow control system and method for improving internal quality of large steel ingot | |
| CN101716659B (en) | Method for mold casting of molten steel | |
| CN115519083B (en) | Control method for surface quality of 15CrMoG continuous casting square billet of tube blank steel | |
| CN206474637U (en) | A kind of large-scale ductile iron part dedicated pouring system | |
| CN204524239U (en) | Electromagnetic pump quantitative casting system | |
| CN113857434A (en) | Metal separation sheet pouring basin device | |
| CN206869103U (en) | Pouring chassis | |
| CN101987356A (en) | Transition casting ladle for casting pouring | |
| CN112548055A (en) | Device and method for semi-continuous casting of ultra-wide aluminum alloy slab ingot | |
| CN201940550U (en) | Manufacturing tooling of high density, wide and thick plate blank for wide and heavy plate mill | |
| CN206527325U (en) | Billet caster | |
| CN106077533B (en) | Casting device and its pouring procedure for hollow steel ingot |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |