Feeding structure for high-density fused quartz nozzle

Abstract

The utility model discloses a feeding structure for a high-density fused quartz nozzle, which comprises a fixed base, a batching barrel, a support bracket, a feeding mechanism and a plurality of feeding barrels, the upper surface of the fixed base is fixedly connected with the batching barrel, the top of the batching barrel is provided with a feeding hole, and the side wall of the batching barrel is provided with a discharge hole; a discharging valve is fixedly connected to the surface of the discharging opening, a stirring paddle which is rotationally connected is arranged in the batching barrel, a supporting bracket is arranged over the batching barrel, a feeding mechanism is arranged on the lower surface of the supporting bracket, a plurality of feeding barrels are fixedly connected to the upper surface of the supporting bracket, and the feeding barrels are connected with the feeding mechanism in an inserted mode. The fixed base, the batching barrel, the supporting bracket, the charging mechanism and the plurality of charging barrels are utilized to form a charging structure, so that the fused quartz nozzle slurry can be conveniently and automatically added when being prepared, the feeding amount of each ingredient can be conveniently and accurately controlled, on the other hand, the workload of workers can be conveniently reduced, and the production efficiency is improved. And the working efficiency of production and processing of workers is improved.

Description

Technical Field

[0001] This utility model relates to the field of fused silica processing technology, specifically a feeding structure for high-density fused silica sprues. Background Technology

[0002] Fused silica is an amorphous (glassy) form of silicon dioxide (quartz, silica). It is a typical glass with a long-range disordered atomic structure. Its high service temperature and low coefficient of thermal expansion are provided by the cross-linking of its three-dimensional structure. Fused silica has a melting temperature of approximately 1713°C, low thermal conductivity, and one of the lowest coefficients of thermal expansion among all refractory materials, thus exhibiting extremely high thermal shock resistance. Therefore, fused silica shells rarely crack due to sudden temperature changes during firing and casting, making it an ideal refractory material for investment casting. It can be used as a face or back coating, as well as a sand-spreading material.

[0003] The sprue is a crucial component in the steel casting process, primarily serving to transport molten steel, prevent secondary oxidation, control flow and splashing, regulate the flow of molten steel in the crystallizer, and prevent non-metallic inclusions from contaminating the cast billet. In continuous steel casting, the quality of the sprue directly affects not only the quality and output of the cast slab but also the workload of the casting operators. Currently, most sprues used are made of alumina-carbon or fused silica materials. Alumina-carbon sprues, made from corundum and graphite, require preheating before use and are prone to cracking. Quartz sprues offer good thermal shock resistance, high mechanical strength, good chemical stability, and resistance to acidic slag corrosion. They do not require preheating before use and are relatively inexpensive.

[0004] Currently, the production of fused silica nozzles requires the prior preparation of silica slurry. Since this slurry typically contains various additives, its preparation is cumbersome, increasing the workload for construction personnel and making it difficult to guarantee the precise proportions of the additives, thus affecting the quality of the fused silica nozzles. Therefore, a feeding structure for high-density fused silica nozzles is proposed. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a feeding structure for high-density fused silica sprues, which solves the problems of increased workload for construction workers due to manual batching of silica slurry and insufficient accuracy in the mixing ratio.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a feeding structure for high-density fused silica nozzles, comprising a fixed base, a mixing tank, a support bracket, a feeding mechanism, and several feeding tanks. The mixing tank is fixedly connected to the upper surface of the fixed base. The top of the mixing tank is provided with a feeding port, and the side wall of the mixing tank is provided with a discharge port. A discharge valve is fixedly connected to the surface of the discharge port. A rotating stirring paddle is provided inside the mixing tank. The support bracket is located directly above the mixing tank. The feeding mechanism is located on the lower surface of the support bracket. Several feeding tanks are fixedly connected to the upper surface of the support bracket. The feeding tanks are plugged into the feeding mechanism.

[0009] As a further preferred embodiment of the present invention, the stirring paddle is provided with a central shaft, the central shaft passes through the bottom of the mixing barrel and is rotatably connected to the mixing barrel, and a sealing ring is provided at the connection between the central shaft and the mixing barrel.

[0010] As a further preferred embodiment of this utility model, a motor is fixedly connected to the lower surface of the fixed base, and a coupling is fixedly connected to the output end of the motor, the coupling being fixedly connected to the central shaft of the stirring paddle.

[0011] As a further preferred embodiment of the present invention, the feeding mechanism includes a fixed disk, a feeding motor and a feeding roller. The surface of the fixed disk is fixedly connected with a plurality of rotating grooves. The feeding roller is embedded in the rotating grooves and rotatably connected to the rotating grooves. The feeding motor is fixedly connected to the edge of the fixed disk. A transmission belt is provided between the output end of the feeding motor and the feeding roller.

[0012] As a further preferred embodiment of the present invention, the feeding roller has a feeding hole inside and a belt groove at its edge.

[0013] As a further preferred embodiment of this utility model, the upper end of the rotating groove is inserted into the feeding barrel, and a central frame is fixedly connected to the center of the rotating groove, and the central frame is rotatably connected to the feeding roller.

[0014] As a further preferred embodiment of the present invention, the inner wall of the rotating groove is provided with an upper baffle plate and a lower baffle plate, which are located on the upper and lower sides of the feeding roller, respectively.

[0015] As a further preferred embodiment of this utility model, the surface of the lower baffle plate is provided with a feeding groove, the opening width of the feeding groove is greater than the diameter of the feeding hole, and the upper baffle plate is located directly above the feeding groove.

[0016] (III) Beneficial Effects

[0017] This invention provides a feeding structure for high-density fused silica nozzles. It has the following beneficial effects:

[0018] 1. This utility model utilizes a fixed base, a mixing bucket, a support bracket, a feeding mechanism, and several feeding buckets to form a feeding structure, which facilitates automatic addition when preparing molten quartz slurry. On the one hand, it facilitates precise control of the amount of each ingredient added, thereby improving the production quality of quartz slurry. On the other hand, it helps to reduce the workload of workers and improve their production efficiency.

[0019] 2. This utility model utilizes a fixed disc, a feeding motor, and a feeding roller to form a feeding mechanism. This allows the feeding roller to rotate simultaneously under the drive of the feeding motor, facilitating the synchronous addition of multiple ingredients and improving the efficiency of feeding. By providing feeding holes of different volumes inside the feeding roller, it is convenient to control the amount of material added at one time according to the different addition ratios of different components. At the same time, it is convenient to replace the feeding roller under different mixing ratios, improving the convenience and versatility of quartz slurry preparation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the feeding structure for the high-density fused silica nozzle of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the ingredient mixing tank of this utility model;

[0022] Figure 3 This is a cross-sectional structural diagram of the feeding mechanism of this utility model;

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the rotating groove of this utility model;

[0024] Figure 5 This is a schematic diagram of the rotating groove structure of this utility model.

[0025] In the diagram: Fixed base-1, mixing tank-2, support bracket-3, feeding mechanism-4, feeding tank-5, feeding port-6, discharge port-7, discharge valve-8, stirring paddle-9, central shaft-10, sealing ring-11, motor-12, coupling-13, fixed plate-14, feeding motor-15, feeding roller-16, rotating groove-17, transmission belt-18, feeding hole-19, belt groove-20, central frame-21, upper baffle plate-22, lower baffle plate-23, feeding trough-24. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 This utility model provides a technical solution: a feeding structure for high-density fused silica nozzles, including a fixed base 1, a mixing tank 2, a support bracket 3, a feeding mechanism 4, and several feeding tanks 5. The mixing tank 2 is fixedly connected to the upper surface of the fixed base 1. The top of the mixing tank 2 is provided with a feeding port 6. The side wall of the mixing tank 2 is provided with a discharge port 7. The surface of the discharge port 7 is fixedly connected with a discharge valve 8. The mixing tank 2 is provided with a rotating stirring paddle 9 inside. The support bracket 3 is provided directly above the mixing tank 2. The feeding mechanism 4 is provided on the lower surface of the support bracket 3. Several feeding tanks 5 are fixedly connected to the upper surface of the support bracket 3. The feeding tanks 5 are plugged into the feeding mechanism 4.

[0028] In a further improvement, the stirring paddle 9 has a central shaft 10 at its center. The central shaft 10 passes through the bottom of the mixing tank 2 and is rotatably connected to the mixing tank 2. A sealing ring 11 is provided at the connection between the central shaft 10 and the mixing tank 2. By having a central shaft 10 at the center of the stirring paddle 9 and rotatably connected to the mixing tank 2, it is convenient to drive the stirring paddle 9 to rotate inside the mixing tank 2, thereby stirring the quartz slurry. By providing a sealing ring 11 at the connection between the central shaft 10 and the mixing tank 2, leakage of the quartz slurry is prevented.

[0029] In a further improvement, a motor 12 is fixedly connected to the lower surface of the fixed base 1, and a coupling 13 is fixedly connected to the output end of the motor 12. The coupling 13 is fixedly connected to the central shaft 10 of the agitator 9. By fixing the motor 12 to the lower surface of the fixed base 1 and cooperating with the coupling 13 to the central shaft 10 of the agitator 9, it is convenient to stir the slurry during the feeding process, improve the uniformity of the mixing of various material components, and improve the production quality of the quartz nozzle.

[0030] In a further improvement, the feeding mechanism 4 includes a fixed disk 14, a feeding motor 15, and a feeding roller 16. The surface of the fixed disk 14 is fixedly connected with several rotating grooves 17. The feeding roller 16 is embedded in the rotating grooves 17 and rotatably connected to the rotating grooves 17. The feeding motor 15 is fixedly connected to the edge of the fixed disk 14. A transmission belt 18 is provided between the output end of the feeding motor 15 and the feeding roller 16. By providing several rotating grooves 17 on the surface of the fixed disk 14, and cooperating with the feeding motor 15 and the transmission belt 18, it is convenient to drive the feeding roller 16 to rotate using the transmission belt 18, which facilitates quantitative feeding and improves the convenience of quartz slurry preparation.

[0031] Further improvements include a feeding hole 19 inside the feeding roller 16 and a belt groove 20 at the edge of the feeding roller 16. By providing a feeding hole 19 inside the feeding roller 16, the different volumes of the feeding holes 19 facilitate the quantitative addition of ingredients. By providing a belt groove 20 on the side wall of the feeding roller 16, it is convenient to drive the feeding roller 16 to rotate precisely, thereby improving the convenience and accuracy of feeding.

[0032] Further improvements include an upper end of the rotating groove 17 that is plugged into the feeding barrel 5, and a central frame 21 that is fixedly connected to the center of the rotating groove 17. The central frame 21 is rotatably connected to the feeding roller 16. By providing a central frame 21 at the center of the rotating groove 17, the stability of the feeding roller 16 rotation is improved, effectively increasing the feeding efficiency.

[0033] In a further improvement, the inner wall of the rotating groove 17 is provided with an upper baffle plate 22 and a lower baffle plate 23. The upper baffle plate 22 and the lower baffle plate 23 are located on the upper and lower sides of the feeding roller 16, respectively. By providing the upper baffle plate 22 and the lower baffle plate 23 distributed vertically on the inner wall of the rotating groove 17, it is convenient to block the feeding hole 19 when the feeding roller 16 rotates, thereby improving the accuracy of feeding and the convenience of feeding.

[0034] Specifically, the surface of the lower baffle plate 23 is provided with a feeding groove 24, the opening width of which is greater than the diameter of the feeding hole 19. The upper baffle plate 22 is located directly above the feeding groove 24. By providing a feeding groove 24 on the surface of the lower baffle plate 23, it is convenient to feed material when the feeding hole 19 on the surface of the feeding roller 16 rotates. The upper baffle plate 22 directly above the feeding groove 24 can prevent material from entering the feeding hole 19 during the feeding process.

[0035] In operation, water and quartz powder are added to the mixing tank 2 in a certain proportion. The motor 12 drives the stirring paddle 9 to rotate slowly in the mixing tank 2 through the central rod, so that the quartz sand powder and water are fully mixed and the slurry in the mixing tank 2 is prevented from settling. Then, the ingredients to be added are poured into the feeding tank 5 at the top of the feeding mechanism 4. The feeding motor 15 rotates under the control of the controller and drives each feeding roller 16 to rotate through the transmission belt 18, thereby feeding the ingredients in the feeding tank 5 into the mixing tank 2. The stirring paddle 9 continuously stirs and mixes the ingredients to ensure the uniformity of the quartz slurry.

[0036] In the feeding process of this invention, the feeding roller 16 rotates in the feeding trough. After the feeding hole 19 on the surface of the feeding roller 16 is misaligned with the upper baffle, the ingredients in the feeding bucket 5 are automatically filled into the feeding hole 19. At the same time, the lower end of the feeding hole 19 is blocked by the lower baffle to prevent leakage of ingredients. When the feeding hole 19 on the surface of the feeding roller 16 rotates to the feeding trough 24 on the surface of the lower baffle, the ingredients are fed downward along the feeding trough 24. The upper end of the feeding hole 19 is blocked by the upper baffle to prevent excess ingredients from being fed out, thereby improving the accuracy of feeding and work efficiency.

[0037] The components of this utility model, including a fixed base-1, a mixing tank-2, a support bracket-3, a feeding mechanism-4, a feeding tank-5, a feeding port-6, a discharge port-7, a discharge valve-8, a stirring paddle-9, a central shaft-10, a sealing ring-11, a motor-12, a coupling-13, a fixed plate-14, a feeding motor-15, a feeding roller-16, a rotating groove-17, a transmission belt-18, a feeding hole-19, a belt groove-20, a central frame-21, an upper baffle plate-22, a lower baffle plate-23, and a feeding trough-24, are all general standard parts or parts known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. This utility model solves the problem... The problem is that when producing fused silica nozzles, quartz slurry needs to be prepared in advance. Since various different components are usually added to the quartz slurry, the preparation of the slurry is quite complicated, increasing the workload of the construction personnel. At the same time, it is impossible to guarantee the accuracy of the addition ratio, which affects the production quality of the quartz nozzles. This utility model uses a feeding structure composed of a fixed base 1, a mixing tank 2, a support bracket 3, a feeding mechanism 4, and several feeding tanks 5 to facilitate the automatic addition of fused silica nozzle slurry during preparation. On the one hand, it is convenient to accurately control the amount of each ingredient added, thereby improving the production quality of the quartz nozzles. On the other hand, it reduces the workload of the workers and improves the efficiency of the production process.

[0038] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] Furthermore, the terms “first,” “second,” “third,” and “fourth” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as “first,” “second,” “third,” or “fourth” may explicitly or implicitly include at least one of those features.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A feeding structure for high-density fused silica nozzles, comprising a fixed base (1), a mixing tank (2), a support bracket (3), a feeding mechanism (4), and several feeding tanks (5), characterized in that: The upper surface of the fixed base (1) is fixedly connected to the mixing barrel (2). The top of the mixing barrel (2) is provided with a feeding port (6). The side wall of the mixing barrel (2) is provided with a discharge port (7). The surface of the discharge port (7) is fixedly connected with a discharge valve (8). The inside of the mixing barrel (2) is provided with a rotating stirring paddle (9). The top of the mixing barrel (2) is provided with a support bracket (3). The lower surface of the support bracket (3) is provided with a feeding mechanism (4). The upper surface of the support bracket (3) is fixedly connected with several feeding barrels (5). The feeding barrels (5) are plugged into the feeding mechanism (4).

2. The feeding structure for a high-density fused silica nozzle according to claim 1, characterized in that: The stirring paddle (9) has a central shaft (10) at its center. The central shaft (10) passes through the bottom of the mixing tank (2) and is rotatably connected to the mixing tank (2). A sealing ring (11) is provided at the connection between the central shaft (10) and the mixing tank (2).

3. The feeding structure for a high-density fused silica nozzle according to claim 1, characterized in that: A motor (12) is fixedly connected to the lower surface of the fixed base (1), and a coupling (13) is fixedly connected to the output end of the motor (12). The coupling (13) is fixedly connected to the central shaft (10) of the stirring paddle (9).

4. The feeding structure for a high-density fused silica nozzle according to claim 1, characterized in that: The feeding mechanism (4) includes a fixed disk (14), a feeding motor (15), and a feeding roller (16). The surface of the fixed disk (14) is fixedly connected with a plurality of rotating grooves (17). The feeding roller (16) is embedded in the rotating grooves (17) and rotatably connected to the rotating grooves (17). The feeding motor (15) is fixedly connected to the edge of the fixed disk (14). A transmission belt (18) is provided between the output end of the feeding motor (15) and the feeding roller (16).

5. The feeding structure for a high-density fused silica nozzle according to claim 4, characterized in that: The feeding roller (16) has a feeding hole (19) inside and a belt groove (20) at the edge of the feeding roller (16).

6. The feeding structure for a high-density fused silica nozzle according to claim 5, characterized in that: The upper end of the rotating groove (17) is connected to the feeding bucket (5) by insertion. A central frame (21) is fixedly connected to the center of the rotating groove (17). The central frame (21) is rotatably connected to the feeding roller (16).

7. The feeding structure for a high-density fused silica nozzle according to claim 6, characterized in that: The inner wall of the rotating groove (17) is provided with an upper baffle plate (22) and a lower baffle plate (23), which are located on the upper and lower sides of the feeding roller (16), respectively.

8. The feeding structure for a high-density fused silica nozzle according to claim 7, characterized in that: The surface of the lower baffle plate (23) is provided with a feeding groove (24), the opening width of the feeding groove (24) is greater than the diameter of the feeding hole (19), and the upper baffle plate (22) is located directly above the feeding groove (24).

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