Integral pouring device for special-shaped steel ladle refractory material

Abstract

The invention relates to the technical field of steel ladle refractory material pouring, in particular to a special-shaped steel ladle refractory material integral pouring device which is characterized in that a conveying head is mounted on the outer wall of a temporary storage column; a rotating ring is connected to the inner wall of the temporary storage column through a bearing in a supporting mode, an output motor is installed at the top of the frame body, multiple sets of vibrating bars are installed at the bottom of the frame body, transmission teeth are installed at the top end of a transmission shaft body, an inner gear ring is installed on the inner wall of the temporary storage column, and the inner gear ring is in transmission meshing with each set of transmission teeth. An output motor drives a vibrating rod to eccentrically vibrate, so that internal friction force among mixture particles is broken, and internal bubbles are promoted to quickly float and separate; and meanwhile, a planetary meshing structure of the transmission gear and the inner gear ring drives the vibrating bar and the auxiliary rod to rotate and stir, so that vibration degassing and dynamic stirring are synchronously carried out, the problems of bubble retention and layering caused by standing in a traditional step-by-step process are effectively avoided, and the uniformity and compactness of the refractory after pouring are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of steel ladle refractory casting technology, and in particular to a device for integral casting of irregularly shaped steel ladle refractory. Background Technology

[0002] During the manufacturing process of steel ladles, a permanent refractory material must be cast between the inner lining and the steel shell to improve safety, extend service life, and reduce maintenance costs.

[0003] The Chinese Patent Network published a patent application with publication number CN222403440U, which provides an automatic pouring device for producing steel ladle castables. This device improves the uniformity of the refractory castable by setting an inner rotating drum inside the outer fixed drum, thereby ensuring complete filling and reducing the generation of air bubbles during pouring.

[0004] The aforementioned device improves the uniformity of refractory mixtures by using an inner rotating drum. However, during the rotation, the stirring action generates air bubbles inside the mixture, but it cannot remove the air bubbles. A better stirring structure can only reduce the generation of air bubbles. After the mixture is poured between the lining and the steel shell, a vibrator is still needed to remove the air bubbles, making the pouring process quite cumbersome. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] In view of the problem of no bubble removal during the stirring process mentioned above, the present invention is proposed.

[0007] Therefore, the purpose of this invention is to provide a device for integral casting of refractory materials for irregularly shaped steel ladles.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a device for integral casting of refractory materials for irregularly shaped steel ladles, comprising, The casting machine body has a tilting table installed at its output end, a temporary column installed on the table surface of the tilting table, and a conveying head installed on the outer wall of the temporary column. The inner wall of the temporary column is supported by a rotating ring connected to it via bearings. A frame is installed on the inner wall of the rotating ring. An output motor is installed on the top of the frame. Multiple sets of vibrating rods are installed at the bottom of the frame. A transmission shaft is installed at the top output end of each set of vibrating rods. A transmission gear is installed at the top of the transmission shaft. An internal gear ring is installed on the inner wall of the temporary column, and the internal gear ring meshes with each set of transmission gears. Multiple sets of auxiliary rods are installed at the bottom of the frame. A central connecting rod is installed at the bottom of the frame. A base plate is installed at the bottom of the central connecting rod.

[0009] As a preferred embodiment of the integral casting device for irregularly shaped steel ladle refractory materials described in this invention, the top of the base plate is fixedly connected to the bottom of the vibrating rod, and the eccentric wheel assembly inside the vibrating rod is connected to the transmission shaft, so that the rotation of the transmission shaft drives the vibrating rod to vibrate eccentrically.

[0010] As a preferred embodiment of the integral casting device for irregularly shaped steel ladles of refractory materials described in this invention, wherein: an external gear ring is installed on the outer wall of the rotating ring, a transmission component is installed on the inner wall of the temporary column, the transmission component is located on one side of the external gear ring, a conveying wheel is installed on the inner wall of the conveying head through a bearing, and a mating tooth is installed on the outer wall of the conveying wheel, the mating tooth engaging with the transmission component.

[0011] As a preferred embodiment of the integral casting device for irregularly shaped steel ladle refractory materials described in this invention, the inside of the conveying wheel is a conveying spiral blade, and the rotation of the spiral blade stably conveys the mixed refractory material inside the temporary column from the end of the conveying head.

[0012] As a preferred embodiment of the integral casting device for irregularly shaped steel ladle refractory materials described in this invention, the conveying speed of the conveying wheel is related to the rotation speed of the rotating ring through the transmission ratio of the transmission component. As the rotation speed of the rotating ring increases, its conveying efficiency will also increase. When the conveying speed increases, its stirring speed is suitable for the output speed of the mixed refractory material, ensuring that the output mixed refractory material remains uniform.

[0013] As a preferred embodiment of the integral casting device for irregularly shaped steel ladles of refractory materials described in this invention, the transmission component includes a rotating tooth installed on one side of the outer gear ring. The rotating tooth is fitted with a first conical tooth through gear meshing. The first conical tooth is meshed with a second conical tooth. The second conical tooth is connected to a gear set, and the gear set meshes with the mating teeth of the conveying wheel.

[0014] As a preferred embodiment of the integral casting device for irregularly shaped steel ladles of refractory materials described in this invention, wherein: a rotating disk is installed on the top of the rotating tooth, a connecting rod is installed on the top of the rotating disk through a pin, multiple sets of air extraction chambers are opened on the inner wall of the temporary column, a piston block is slidably connected to the inner wall of the air extraction chamber, the piston block and the connecting rod are movably connected through a pin, an air inlet valve is connected to the bottom of the air extraction chamber, and an air outlet valve is connected to the top of the air extraction chamber.

[0015] As a preferred embodiment of the integral casting device for irregularly shaped steel ladles of refractory materials described in this invention, each group of the air extraction chambers is evenly distributed around the outer gear ring, and both the air inlet valve and the air outlet valve are one-way flow valves, ensuring that the movement of the piston block forms an air extraction action.

[0016] As a preferred embodiment of the integral casting device for irregular steel ladle refractory material described in this invention, the temporary column is provided with a flow cavity on the inner wall of one side of the rotating ring, a soft pad is provided between the flow cavity and the rotating ring for airtight isolation, a flow through hole is provided on the outer wall of the rotating ring, and a micro air extraction hole is provided at the bottom area of ​​the auxiliary rod.

[0017] Beneficial effects The technical solution provided by this invention has the following advantages compared with the known prior art: 1. The device drives the vibrating rod to vibrate eccentrically through the output motor, breaking the internal friction between the mixed particles and causing the internal air bubbles to rise and detach quickly; at the same time, the planetary meshing structure of the transmission gear and the internal gear ring drives the vibrating rod and auxiliary rod to rotate and stir, realizing the simultaneous vibration degassing and dynamic stirring, effectively avoiding the problems of air bubble retention and stratification caused by static setting in the traditional step process, and significantly improving the uniformity and density of the refractory after casting. 2. The rotating ring, through the linkage design of the external gear ring, transmission components, and conveying wheel, ensures that the rotational speed of the conveying spiral blades is positively correlated with the mixing / vibration intensity. When construction requires increased pouring speed, the mixing and vibration intensity automatically increases, ensuring that the mixture remains uniform and bubble-free even under rapid output conditions. This adapts to the high-efficiency construction needs of different working conditions and avoids quality fluctuations caused by speed increases. Third, the rotating disk drives the piston block to reciprocate, creating a continuous negative pressure in the air extraction chamber. Through the flow chamber and micro air extraction holes, the microbubbles that fail to rise naturally are actively extracted. This design breaks through the limitation of traditional vibration being effective only for large bubbles, significantly reducing the residual porosity of refractory materials. It is especially suitable for deep degassing of complex cavities in irregularly shaped steel ladles, further improving the casting quality and service life. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of an integral casting device for irregularly shaped steel ladles.

[0020] Figure 2 This is a schematic diagram of a temporary column for an integral casting device for irregularly shaped steel ladles.

[0021] Figure 3 for Figure 2 Enlarged view of point A in the image.

[0022] Figure 4 This is a schematic diagram of a conveyor wheel for an integral casting device for irregularly shaped steel ladles and refractory materials.

[0023] Figure 5 This is a schematic diagram of a vibrating rod for an integral casting device for irregularly shaped steel ladles.

[0024] Figure 6 This is a schematic diagram of a rotating disk for an integral casting device for irregularly shaped steel ladles.

[0025] Reference numerals: 1. Casting machine body; 11. Tilting table; 12. Temporary column; 13. Conveying head; 2. Rotating ring; 21. Frame; 22. Output motor; 23. Vibrator; 24. Transmission shaft; 25. Transmission gear; 26. Internal gear ring; 27. Auxiliary rod; 28. Central connecting rod; 29. ​​Base plate; 3. External gear ring; 31. Transmission component; 311. Rotating gear; 312. First conical gear; 313. Second conical gear; 314. Gear set; 32. Conveying wheel; 33. Mating gear; 4. Rotating disk; 41. Connecting rod; 42. Air extraction chamber; 43. Piston block; 44. Inlet valve; 45. Outlet valve; 5. Flow chamber; 51. Flow through hole; 52. Micro-extraction hole. Detailed Implementation

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0029] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0030] Example Reference Figures 1-6 This is one embodiment of the present invention, which provides an integral casting device for irregularly shaped steel ladle refractory materials, including a casting machine body 1, a tilting table 11 installed at the output end of the casting machine body 1, a temporary placement column 12 installed on the table surface of the tilting table 11, a conveying head 13 installed on the outer wall of the temporary placement column 12, the tilting table 11 is driven by a servo motor and can be tilted steplessly, and automatically returns to its position after the refractory material is poured, reducing manual intervention; The inner wall of the temporary column 12 is supported by a rotating ring 2 via bearings. A frame 21 is mounted on the inner wall of the rotating ring 2. An output motor 22 is mounted on the top of the frame 21. Multiple sets of vibrating rods 23 are mounted on the bottom of the frame 21. A transmission shaft 24 is mounted on the top output end of each set of vibrating rods 23. A transmission gear 25 is mounted on the top of the transmission shaft 24, and the transmission gear 25 meshes with each set of transmission gears. Multiple sets of auxiliary rods 27 are mounted on the bottom of the frame 21. A central connecting rod 28 is mounted on the bottom of the frame 21, and a base plate 29 is mounted on the bottom of the central connecting rod 28. The output motor 22 drives the transmission shaft 24 to rotate. The rotation of the transmission shaft 24 causes the eccentric wheel assembly inside the vibrating rod 23 to rotate. The rotation of the eccentric wheel assembly causes... When the vibrator 23 vibrates, the internal friction between the particles of the mixture is temporarily reduced. Under this condition, the mixture is more likely to move relative to each other. The air bubbles that were originally trapped inside the mixture are released from their restraints and begin to rise. The rotation of the drive shaft 24 drives the drive gear 25 to rotate. The drive gear 25 meshes with the inner gear ring 26, causing the rotation of the drive gear 25 to drive the rotating ring 2 to rotate as a whole. The rotating ring 2 drives the frame 21 and multiple sets of vibrators 23 and auxiliary rods 27 to rotate synchronously. The overall rotation stirs the mixed mixture, maintains the uniformity of the mixture, and avoids the formation of stratification. The central connecting rod 28 is used to fix the connecting base plate 29. The base plate 29 supports the bottom of the vibrator 23.

[0031] Specifically, the top of the base plate 29 is fixedly connected to the bottom of the vibrating rod 23, and the eccentric wheel assembly inside the vibrating rod 23 is connected to the transmission shaft 24, so that the rotation of the transmission shaft 24 drives the vibrating rod 23 to vibrate eccentrically. During the eccentric rotation, the vibrating rod 23 reduces the internal friction between the mixed particles, causing the trapped air bubbles to float up and detach from the mixed material.

[0032] Furthermore, an external gear ring 3 is installed on the outer wall of the rotating ring 2, and a transmission component 31 is installed on the inner wall of the temporary column 12. The transmission component 31 is located on one side of the external gear ring 3. A conveying wheel 32 is installed on the inner wall of the conveying head 13 through a bearing. A mating tooth 33 is installed on the outer wall of the conveying wheel 32. The mating tooth 33 meshes with the transmission component 31. Through this planetary transmission method, the rotation of the conveying wheel 32 is synchronized with the external gear ring 3, so that the conveying speed is positively correlated with the stirring speed of the rotating ring 2.

[0033] Furthermore, the interior of the conveying wheel 32 is equipped with conveying spiral blades. The rotation of the spiral blades stably conveys the mixed refractory material inside the temporary column 12 out from the end of the conveying head 13. The continuous pushing of the spiral blades ensures that the mixture is discharged evenly and continuously, avoiding blockage and segregation.

[0034] Furthermore, the conveying speed of the conveying wheel 32 is related to the rotation speed of the rotating ring 2 through the transmission ratio of the transmission component 31. As the rotation and stirring speed of the rotating ring 2 increases, its conveying efficiency will also increase. This allows the stirring speed to adapt to the output speed of the mixed refractory when the conveying speed increases, ensuring that the output mixed refractory remains uniform. This speed linkage strengthens the vibration and stirring simultaneously when the pouring speed is increased, maintaining the uniformity of the mixture and accelerating the removal of air bubbles.

[0035] Furthermore, the transmission component 31 includes a rotating tooth 311 mounted on one side of the outer gear ring 3. The rotating tooth 311 is fitted with a first conical tooth 312 through gear meshing. The first conical tooth 312 is meshed with a second conical tooth 313. The second conical tooth 313 is connected to a gear set 314, and the gear set 314 engages with the mating teeth 33 of the conveyor wheel 32. The top of the first conical tooth 312 engages with the rotating tooth 311 through gear meshing, so that when the rotating tooth 311 rotates, it can drive the first conical tooth 312 to rotate. The rotation of the first conical tooth 312 drives the second conical tooth 313 to rotate. The rotation of the second conical tooth 313 drives the gear set 314 to rotate. The gear set 314, through engagement with the mating teeth 33, drives the conveyor wheel 32 to rotate. This multi-stage transmission structure ensures that the rotation of the outer gear ring 3 is smoothly transmitted to the conveyor wheel 32, maintaining the matching of the output flow rate and the stirring speed.

[0036] Furthermore, a rotating disk 4 is installed on the top of the rotating gear 311, and a connecting rod 41 is installed on the top of the rotating disk 4 via a pin. Multiple sets of suction chambers 42 are opened on the inner wall of the temporary column 12. A piston block 43 is slidably connected to the inner wall of the suction chamber 42. The piston block 43 and the connecting rod 41 are movably connected via a pin. An air inlet valve 44 is connected to the bottom of the suction chamber 42, and an air outlet valve 45 is connected to the top of the suction chamber 42. The rotating disk 4 rotates synchronously with the rotating ring 2, driving the piston block 43 to reciprocate, forming a negative pressure in the suction chamber 42, further extracting microbubbles that failed to float naturally.

[0037] Furthermore, each set of suction chambers 42 is evenly distributed around the outer gear ring 3. The inlet valve 44 and the outlet valve 45 are both one-way flow valves, ensuring that the movement of the piston block 43 forms a suction action. The multiple sets of chambers work together to keep the flow chamber 5 under continuous negative pressure, thereby improving the microbubble removal efficiency.

[0038] Furthermore, the temporary column 12 has a flow chamber 5 on one side of the inner wall of the rotating ring 2. A soft pad is provided between the flow chamber 5 and the rotating ring 2 for airtight isolation. The outer wall of the rotating ring 2 has a flow through hole 51. The bottom area of ​​the auxiliary rod 27 has a micro air extraction hole 52. The flow chamber 5 is connected to the micro air extraction hole 52 through the flow through hole 51. The negative pressure generated by the reciprocating motion of the piston block 43 acts on the mixture through the micro air extraction hole 52, drawing residual microbubbles into the air extraction chamber 42 and discharging them, further reducing the air content of the mixture.

[0039] Operating Procedure: The refractory mixture, prepared by high-speed mixing, is poured into the temporary storage column. At this time, the output motor 22 drives the transmission shaft 24 to rotate. The rotation of the transmission shaft 24 causes the eccentric wheel assembly inside the vibrator 23 to rotate, causing the vibrator 23 to vibrate. During vibration, the internal friction between the mixture particles temporarily decreases. In this state, the mixture is more prone to relative movement, and the air bubbles originally trapped inside the mixture are released and begin to rise. Furthermore, the rotation of the transmission shaft 24 drives the transmission gear 25 to rotate, thus... The gear 25 meshes with the internal gear ring 26, causing the rotation of the transmission gear 25 to drive the rotation of the entire rotating ring 2. This, in turn, causes the frame 21 and multiple sets of vibrating rods 23 and auxiliary rods 27 to rotate synchronously. This overall rotation stirs the mixed material, maintaining its uniformity and preventing stratification. Through a planetary transmission mechanism, this mechanism removes air bubbles through vibration while simultaneously rotating the stirring components. This maintains the uniformity of the mixture and removes a large number of air bubbles generated in the previous mixing step, improving the subsequent casting effect. Furthermore, during rotation… When ring 2 rotates, it drives the outer gear ring 3 to rotate. The rotation of the outer gear ring 3 drives the conveying wheel 32 inside the conveying head 13 through the transmission component 31, causing the conveying wheel 32 to rotate and convey the mixture inside the temporary column 12. At this time, the rotation speed of the conveying wheel 32 is positively correlated with the rotation speed of ring 2, so that when the pouring speed is increased, the speed of the internal vibrator 23 and the mixing speed also increase, improving the adaptability of the pouring. Also, when ring 2 rotates, it drives the rotating disk 4 to rotate. 4. The rotation drives the connecting rod 41 to swing longitudinally. The longitudinal swing of the connecting rod 41 drives the piston block 43 to reciprocate inside the suction chamber 42. Through the cooperation of the exhaust valve 45 and the intake valve 44, the gas flows from bottom to top. The flow chamber 5, the flow through hole 51 and the micro suction hole 52 are connected. The reciprocating movement of the piston block 43 keeps the flow chamber 5 under negative pressure, so that the micro suction hole 52 draws in the captured gas, thereby removing air bubbles that may not float, and further improving the subsequent casting effect.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A device for integral casting of refractory materials for irregularly shaped steel ladles, characterized in that: include, The pouring machine body (1) is equipped with a tilting table (11) at its output end. A temporary column (12) is installed on the table surface of the tilting table (11), and a conveying head (13) is installed on the outer wall of the temporary column (12). The inner wall of the temporary column (12) is supported by a rotating ring (2) by a bearing. A frame (21) is installed on the inner wall of the rotating ring (2). An output motor (22) is installed on the top of the frame (21). Multiple sets of vibrating rods (23) are installed at the bottom of the frame (21). A transmission shaft (24) is installed at the top output end of each set of vibrating rods (23). A transmission tooth (25) is installed at the top of the transmission shaft (24). An internal gear ring (26) is installed on the inner wall of the temporary column (12). The internal gear ring (26) meshes with each set of transmission teeth (25). Multiple sets of auxiliary rods (27) are installed at the bottom of the frame (21). A central connecting rod (28) is installed at the bottom of the frame (21). A base plate (29) is installed at the bottom of the central connecting rod (28).

2. The integral casting device for irregularly shaped steel ladles as described in claim 1, characterized in that: The top of the base plate (29) is fixedly connected to the bottom of the vibrating rod (23). The eccentric wheel assembly inside the vibrating rod (23) is connected to the transmission shaft (24) so ​​that the rotation of the transmission shaft (24) drives the vibrating rod (23) to vibrate eccentrically.

3. The integral casting device for irregularly shaped steel ladles as described in claim 2, characterized in that: The outer wall of the rotating ring (2) is equipped with an external gear ring (3), and the inner wall of the temporary column (12) is equipped with a transmission component (31). The transmission component (31) is located on one side of the external gear ring (3). The inner wall of the conveying head (13) is equipped with a conveying wheel (32) through a bearing. The outer wall of the conveying wheel (32) is equipped with a mating tooth (33), and the mating tooth (33) engages with the transmission component (31) in a transmission.

4. The integral casting device for irregularly shaped steel ladles as described in claim 3, characterized in that: The inside of the conveying wheel (32) is a conveying spiral blade. The rotation of the spiral blade will stably convey the mixed refractory inside the temporary column (12) out from the end of the conveying head (13).

5. The integral casting device for irregularly shaped steel ladles as described in claim 4, characterized in that: The conveying speed of the conveying wheel (32) is related to the rotation speed of the rotating ring (2) through the transmission ratio of the transmission component (31). As the rotation and stirring speed of the rotating ring (2) increases, its conveying efficiency will also increase. When the conveying speed increases, its stirring speed adapts to the output speed of the mixed refractory, ensuring that the output mixed refractory remains uniform.

6. The integral casting device for irregularly shaped steel ladles as described in claim 5, characterized in that: The transmission component (31) includes a rotating tooth (311) mounted on one side of the outer gear ring (3). The rotating tooth (311) is fitted with a first conical tooth (312) through gear meshing. The first conical tooth (312) is meshed with a second conical tooth (313). The second conical tooth (313) is connected to a gear set (314), and the gear set (314) meshes with the mating teeth (33) of the conveyor wheel (32).

7. The integral casting device for irregularly shaped steel ladles as described in claim 6, characterized in that: A rotating disk (4) is installed on the top of the rotating tooth (311), and a connecting rod (41) is installed on the top of the rotating disk (4) via a pin. Multiple sets of suction chambers (42) are opened on the inner wall of the temporary column (12). A piston block (43) is slidably connected to the inner wall of the suction chamber (42). The piston block (43) and the connecting rod (41) are movably connected via a pin. An air inlet valve (44) is connected to the bottom of the suction chamber (42), and an air outlet valve (45) is connected to the top of the suction chamber (42).

8. The integral casting device for irregularly shaped steel ladles as described in claim 7, characterized in that: Each set of suction chambers (42) is evenly distributed around the outer gear ring (3). The inlet valve (44) and outlet valve (45) are both one-way flow valves, ensuring that the movement of the piston block (43) forms a suction action.

9. The integral casting device for irregularly shaped steel ladles as described in claim 8, characterized in that: The temporary column (12) has a flow cavity (5) on the inner wall of one side of the rotating ring (2). A soft pad is provided between the flow cavity (5) and the rotating ring (2) for airtight isolation. A flow through hole (51) is provided on the outer wall of the rotating ring (2). A micro air extraction hole (52) is provided at the bottom area of ​​the auxiliary rod (27).

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