Quick-release water atomizing tundish positioning device

Abstract

This utility model discloses a quick-release water atomizing tundish positioning device, relating to the field of metal powder material manufacturing technology. The utility model includes a sealed air inlet cylinder, with a retaining ring and a positioning ring fixedly connected to the top and bottom of the inner cavity of the sealed air inlet cylinder, respectively. This utility model creates a sealed working environment through the sealed air inlet cylinder. Combined with the pores on the surface of the distribution ring, the externally input inert gas is evenly distributed within the sealed space, preventing the molten steel from contacting air before atomization, thus reducing the oxygen content at the source. Simultaneously, the heat-insulating positioning cylinder and the internal insulation material reduce heat loss from the molten steel in the tundish, ensuring the molten steel always maintains good fluidity. Furthermore, through the multiple positioning functions of the retaining ring, positioning ring, positioning frame, and the groove on the top of the heat-insulating positioning cylinder, the tundish is accurately placed, ensuring that the tundish opening and the spray plate remain coaxially aligned, effectively preventing the molten steel from sticking to the spray plate and causing channel blockage, thus preventing abnormal production stoppages.

Description

Technical Field

[0001] This utility model belongs to the field of metal powder material manufacturing technology, and in particular relates to a quick-release water atomization intermediate package positioning device. Background Technology

[0002] Powder catalyst synthesis of diamond offers advantages such as high yield, good quality, and low consumption of raw and auxiliary materials. In recent years, my country's diamond industry has been researching and developing powder catalysts and their diamond synthesis processes. Powder catalyst and graphite-synthesized diamonds have significant advantages in terms of quality, yield, and cemented carbide consumption, and have become an important approach for my country's diamond manufacturing industry.

[0003] Water atomization powder production is widely used in powder metallurgy and diamond catalyst industries due to its lower production cost compared to gas atomization and better powder compressibility. Traditional water atomization equipment exposes the powder to air during atomization, only allowing it to fall into an atomization chamber filled with inert gas after atomization, which is not conducive to reducing oxygen content. Traditional atomization equipment generally uses flame preheating of the tundish. With national environmental bans and companies' increased emphasis on safety, this method is gradually being replaced by resistance heating and induction heating. High-frequency induction heating is environmentally friendly and stable, but it requires a graphite heating element. The heated tundish needs to be removed from the heating device and placed onto the spray plate. Inaccurate positioning of the tundish during this process can affect product quality and may even cause molten steel to adhere to the spray plate, blocking the passage to the atomization chamber, leading to production stoppages.

[0004] To address these issues, we provide a quick-release water atomizing intermediate package positioning device. Utility Model Content

[0005] The purpose of this utility model is to provide a quick-release water atomizing tundish positioning device. By cooperating with a sealed air inlet cylinder, a retaining ring, a heat-insulating positioning cylinder, a diverting ring, and a positioning frame, it solves the problem in the existing technology where inaccurate positioning of the tundish can affect product quality, and may even cause molten steel to stick to the spray plate and block the passage of molten steel to the atomization chamber, resulting in abnormal production stoppage.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a quick-release water atomizing intermediate package positioning device, comprising a sealed air inlet cylinder. A retaining ring and a positioning ring are fixedly connected to the top and bottom of the inner cavity of the sealed air inlet cylinder, respectively. A spray disc is fixedly connected to the inner wall of the positioning ring. A heat-insulating positioning cylinder is fixedly connected to the inner wall of the retaining ring. A flow-diverting ring is fixedly connected to the bottom of the surface of the heat-insulating positioning cylinder. A positioning frame is fixedly connected to the inner cavity of the heat-insulating positioning cylinder. An intermediate package is placed in the inner cavity of the positioning frame. An intermediate package opening is fixedly connected to the bottom of the intermediate package, extending from the bottom of the intermediate package opening to the bottom of the heat-insulating positioning cylinder. A heat-insulating cotton layer is filled between the intermediate package and the heat-insulating positioning cylinder.

[0008] The present invention is further configured such that pipe fittings are fixedly connected to the four corners of the surface of the sealed air inlet cylinder, and the pipe fittings are designed symmetrically in pairs, which facilitates the connection to the external inert gas delivery pipeline.

[0009] The present invention is further provided in that trapezoidal grooves for positioning are provided at the top and bottom of the inner cavity of the sealed air inlet cylinder, and the trapezoidal grooves provide a clear positioning reference for the installation of the retaining ring and the positioning ring.

[0010] The present invention is further configured such that the heat-insulating positioning cylinder is a one-piece steel pipe cut into two equal parts, and fixing holes are provided at the upper and lower ends of both sides of the split body. The heat-insulating positioning cylinder adopts a two-part design to ensure that the two split body structures have the same size, and can fit tightly after assembly, reducing the heat-insulating gap and improving the heat-insulating effect.

[0011] The present invention is further provided that the top of the surface of the heat-insulating positioning cylinder is provided with a positioning groove, which provides a positioning reference for the installation and fixing of the retaining ring.

[0012] The present invention is further configured such that both the flow divider ring and the retaining ring are integral circular rings cut into two equal parts. The surface of the flow divider ring is provided with air holes. The two-part design of the flow divider ring and the retaining ring ensures the consistency of the shape and size of the two separate structures. After assembly, they can form a complete ring structure, avoiding gas diversion disorder or positioning deviation caused by unevenness of the separate structures. The air holes on the surface of the flow divider ring can evenly disperse the gas entering the sealed air inlet cylinder into the internal space, providing a stable inert gas protection environment for the molten steel and helping to reduce the oxygen content. At the same time, the separate design also facilitates installation or disassembly with the heat preservation positioning cylinder.

[0013] The present invention is further configured such that the upper and lower planes of the retaining ring are perpendicular to the retaining ring axis, and the inner circular surface is perpendicular to the upper and lower planes. This design ensures the fit between the retaining ring and the inner wall of the sealed air inlet cylinder and the outer wall of the heat insulation positioning cylinder, and avoids the axial displacement of the heat insulation positioning cylinder after installation due to the inclination of the retaining ring plane. It ensures that the axis of the heat insulation positioning cylinder and the sealed air inlet cylinder coincides, thereby providing a basis for the accurate positioning of the intermediate tundish and improving the overall positioning accuracy.

[0014] The present invention is further configured such that the positioning ring is a circular ring structure, and the upper and lower planes are perpendicular to the center line of the positioning ring. This design ensures that the positioning ring fits tightly with the inner wall of the sealed air inlet cylinder and the spray plate, avoids tilting after the spray plate is installed, ensures the coaxiality of the spray plate and the tundish opening, prevents the molten steel from deviating from the spray plate when flowing out of the tundish opening, and reduces the risk of molten steel sticking to the spray plate and the channel being blocked.

[0015] The present invention has the following beneficial effects.

[0016] 1. This utility model constructs a sealed working environment by sealing the air inlet cylinder. Combined with the pores on the surface of the diverter ring, the externally input inert gas is evenly distributed within the sealed space, preventing the molten steel from contacting air before atomization and reducing oxygen content at the source. Simultaneously, the heat-insulating positioning cylinder and the internal insulation material reduce heat loss from the molten steel in the tundish, ensuring good fluidity at all times. Furthermore, the multiple positioning functions of the retaining ring, positioning ring, positioning frame, and the top groove of the heat-insulating positioning cylinder ensure precise placement of the tundish, keeping the tundish opening and the spray plate coaxially aligned. This effectively prevents molten steel from sticking to the spray plate and causing channel blockage, preventing abnormal production terminations and improving product quality stability.

[0017] 2. The heat insulation positioning cylinder, diverting ring, and retaining ring of this utility model are all designed in a split manner. The heat insulation positioning cylinder has fixing holes on both sides of the split parts. During assembly, they can be quickly spliced ​​and fixed by connecting parts. During disassembly, only the connecting parts need to be disassembled to separate the split parts. When it is necessary to replace the intermediate package or maintain the spray plate, positioning frame, and other components, there is no need to disassemble the entire device. The intermediate package or maintenance parts can be quickly removed, which greatly shortens the replacement and maintenance time. At the same time, each split part is precisely cut to ensure structural consistency. After assembly, the positioning accuracy can be quickly restored, ensuring that the device can be quickly put back into production, effectively improving production continuity and overall production efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a perspective view of a quick-release water atomizing intermediate batch positioning device.

[0020] Figure 2 This is a cross-sectional schematic diagram of the sealed air inlet cylinder in a quick-release water atomizing intermediate package positioning device.

[0021] Figure 3 This is a top view schematic diagram of the sealed air inlet cylinder in a quick-release water atomizing intermediate package positioning device.

[0022] Figure 4 This is a top view schematic diagram of a retaining ring in a quick-release water atomizing intermediate package positioning device.

[0023] Figure 5 This is a cross-sectional schematic diagram of a retaining ring in a quick-release water atomizing intermediate package positioning device.

[0024] Figure 6 This is a top view schematic diagram of the positioning ring in a quick-release water atomizing intermediate package positioning device.

[0025] Figure 7 This is a cross-sectional schematic diagram of the positioning ring in a quick-release water atomizing intermediate package positioning device.

[0026] Figure 8 This is a cross-sectional schematic diagram of the heat-insulating positioning cylinder in a quick-release water atomizing intermediate ladle positioning device.

[0027] Figure 9 This is a top view schematic diagram of the heat-insulating positioning cylinder in a quick-release water atomizing intermediate ladle positioning device.

[0028] Figure 10 This is a top view schematic diagram of a diversion ring in a quick-release water atomizing intermediate package positioning device.

[0029] Figure 11 This is a cross-sectional schematic diagram of a diversion ring in a quick-release water atomizing intermediate package positioning device.

[0030] Figure 12 This is a top view schematic diagram of the positioning frame in a quick-release water atomizing intermediate liner positioning device.

[0031] Figure 13 This is a cross-sectional schematic diagram of the positioning frame in a quick-release water atomizing intermediate package positioning device.

[0032] In the attached diagram: 1. Sealed air inlet cylinder; 2. Snap ring; 3. Positioning ring; 4. Spray disc; 5. Insulated positioning cylinder; 6. Diverter ring; 7. Positioning frame; 8. Intermediate pack; 9. Intermediate pack eyelet; 10. Insulation cotton layer. Detailed Implementation

[0033] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0034] Example 1

[0035] Please see Figure 1-13 This utility model is a quick-release water atomizing intermediate bag positioning device, including a sealed air inlet cylinder 1. A retaining ring 2 and a positioning ring 3 are fixedly connected to the top and bottom of the inner cavity of the sealed air inlet cylinder 1, respectively. A spray disc 4 is fixedly connected to the inner wall of the positioning ring 3. A heat-insulating positioning cylinder 5 is fixedly connected to the inner wall of the retaining ring 2. A flow-dividing ring 6 is fixedly connected to the bottom of the surface of the heat-insulating positioning cylinder 5. The surface of the flow-dividing ring 6 is fixedly connected to the inner wall of the sealed air inlet cylinder 1. A positioning frame 7 is fixedly connected to the inner cavity of the heat-insulating positioning cylinder 5. An intermediate bag 8 is placed in the inner cavity of the positioning frame 7. An intermediate bag opening 9 is fixedly connected to the bottom of the intermediate bag 8. The bottom of the intermediate bag opening 9 extends to the bottom of the heat-insulating positioning cylinder 5. A heat-insulating cotton partition 10 is filled between the intermediate bag 8 and the heat-insulating positioning cylinder 5.

[0036] Specifically: the optimal distance between the trapezoidal groove and the retaining ring 2 and positioning ring 3 is 1-1.5mm; the thickness of the sealed air inlet cylinder 1 is 15-20mm; the inner diameter of the sealed air inlet cylinder 1 is not less than 300mm; the optimal depth of the retaining groove is 4-5mm; the thickness of the heat-insulating positioning cylinder 5 is 10-15mm; the inner diameter of the heat-insulating positioning cylinder 5 is not less than 230mm; and the gap between the retaining ring 2 and the retaining groove on the heat-insulating positioning cylinder 5 is 0.5-0.8mm, ensuring smooth installation and accurate positioning. The optimal gap between the inner and outer diameters of the positioning ring 3 and the outer diameter of the spray disc 4 and the trapezoidal groove at the bottom of the sealed air inlet cylinder 1 is 0.5mm. The positioning frame 7 consists of two layers connected by round steel. Both layers are composed of an inner circle and three outer fan-shaped parts. The outer fan-shaped parts position the positioning frame 7, and the inner circle positions the intermediate package 8. Considering that the intermediate package 8 will expand after heating, the optimal gap between the inner circle and the intermediate package 8 is 2-2.5mm. The gap between the positioning frame 7 and the inner wall of the heat preservation positioning cylinder 5 is 1-2mm.

[0037] Example 2

[0038] Please see Figure 1-13 Based on Embodiment 1, pipe fittings are fixedly connected to the four corners of the surface of the sealed air inlet cylinder 1, and the pipe fittings are designed symmetrically in pairs. The top and bottom of the inner cavity of the sealed air inlet cylinder 1 are provided with trapezoidal grooves for positioning. The heat insulation positioning cylinder 5 is a one-piece steel pipe cut into two equal parts, and the upper and lower ends of both sides of the split are provided with fixing holes. The top of the surface of the heat insulation positioning cylinder 5 is provided with a positioning groove. The diverting ring 6 and the retaining ring 2 are both one-piece circular rings cut into two equal parts. The surface of the diverting ring 6 is provided with air holes. The upper and lower planes of the retaining ring 2 are perpendicular to the axis of the retaining ring 2, and the inner circular surface is perpendicular to the upper and lower planes. The positioning ring 3 is a circular ring structure, and the upper and lower planes are perpendicular to the axis of the positioning ring 3.

[0039] Specifically: symmetrical pipe fittings facilitate connection to external inert gas delivery pipelines; trapezoidal grooves provide a clear positioning reference for the installation of retaining ring 2 and positioning ring 3; the insulation positioning cylinder 5 adopts a bipartite design to ensure that the two split structures have consistent dimensions, allowing for a tight fit after assembly, reducing insulation gaps and improving insulation effect; the retaining groove provides a positioning reference for the installation and fixation of retaining ring 2; the bipartite design of the diversion ring 6 and retaining ring 2 ensures the consistency of shape and size of the two split structures, forming a complete ring structure after assembly, avoiding gas diversion disorder or positioning deviation due to uneven split structures; the vents on the surface of the diversion ring 6 can evenly disperse the gas entering the sealed inlet cylinder 1 into the internal space, providing a stable inert gas protective environment for the molten steel. This design helps reduce oxygen content and facilitates installation and disassembly with the insulation positioning cylinder 5. This design ensures the fit between the retaining ring 2 and the inner wall of the sealed air inlet cylinder 1 and the outer wall of the insulation positioning cylinder 5, preventing the insulation positioning cylinder 5 from shifting its axis after installation due to the inclination of the retaining ring 2. It also ensures that the axis of the insulation positioning cylinder 5 and the sealed air inlet cylinder 1 coincides, thus providing a basis for the accurate positioning of the tundish 8 and improving the overall positioning accuracy. This design also ensures the tight fit between the positioning ring 3 and the inner wall of the sealed air inlet cylinder 1 and the spray plate 4, preventing the spray plate 4 from tilting after installation. It also ensures the coaxiality of the spray plate 4 and the tundish opening 9, preventing the molten steel from deviating from the spray plate 4 when flowing out of the tundish opening 9, and reducing the risk of molten steel sticking to the spray plate 4 and the channel being blocked.

[0040] The working principle of this utility model is as follows: First, the retaining ring 2 is fixed to the top of the inner cavity of the sealed air inlet cylinder 1, and the positioning ring 3 is fixed to the bottom of the inner cavity of the sealed air inlet cylinder 1. The spray plate 4 is fixed to the inner wall of the positioning ring 3. Then, the two parts of the heat preservation positioning cylinder 5 are assembled through the fixing holes. Its top is fixed to the inner wall of the retaining ring 2, and the bottom surface is fixed to the diverting ring 6. The outer surface of the diverting ring 6 is fixed to the inner wall of the sealed air inlet cylinder 1. The positioning frame 7 is fixed to the inner cavity of the heat preservation positioning cylinder 5. The intermediate bag 8 is placed into the inner cavity of the positioning frame 7. The intermediate bag hole 9 at the bottom of the intermediate bag 8 penetrates through the bottom of the heat preservation positioning cylinder 5 and corresponds to the spray plate 4. The intermediate bag 8 and the heat preservation... Insulation material is filled between the positioning cylinders 5, and the pipe fittings on the surface of the sealed air inlet cylinder 1 are connected to the external inert gas pipeline. During operation, the intermediate ladle 8 is heated to a certain temperature by the induction heating device. Then, the intermediate ladle 8 is placed into the inner cavity of the insulation positioning cylinder 5 using tools such as crucible tongs. Nitrogen gas is introduced, the centrifugal fan is turned on, and the normal water atomization powder making process begins. When molten steel adheres to the spray plate 4 and blocks the passage of molten steel to the atomization chamber, the insulation positioning cylinder 5 is lifted upward by 5mm, the retaining ring 2 and the sealed air inlet cylinder 1 are removed, and the bolts on both sides of the insulation positioning cylinder 5 are removed for maintenance.

[0041] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A quick-release water atomizing tundish positioning device comprising a sealed air inlet cylinder (1), characterized in that: The top and bottom of the inner cavity of the sealed air inlet cylinder (1) are fixedly connected to a retaining ring (2) and a positioning ring (3), respectively. The inner wall of the positioning ring (3) is fixedly connected to a spray disc (4). The inner wall of the retaining ring (2) is fixedly connected to a heat-insulating positioning cylinder (5). The bottom of the surface of the heat-insulating positioning cylinder (5) is fixedly connected to a diverting ring (6). The surface of the diverting ring (6) is fixedly connected to the inner wall of the sealed air inlet cylinder (1). The inner cavity of the heat-insulating positioning cylinder (5) is fixedly connected to a positioning frame (7). The inner cavity of the positioning frame (7) contains an intermediate package (8). The bottom of the intermediate package (8) is fixedly connected to an intermediate package opening (9). The bottom of the intermediate package opening (9) extends to the bottom of the heat-insulating positioning cylinder (5). The space between the intermediate package (8) and the heat-insulating positioning cylinder (5) is filled with a heat-insulating cotton layer (10).

2. The quick-release water atomizing tundish positioning device according to claim 1, characterized in that: The four corners of the surface of the sealed air inlet cylinder (1) are fixedly connected with pipe fittings, and the pipe fittings are designed symmetrically in pairs.

3. The quick-release water atomizing tundish positioning device of claim 1, wherein: The top and bottom of the inner cavity of the sealed air inlet cylinder (1) are provided with trapezoidal grooves for positioning.

4. The quick-release water atomizing tundish positioning device of claim 1, wherein: The heat-insulating positioning cylinder (5) is a one-piece steel pipe cut into two equal parts, and fixing holes are opened at the upper and lower ends of both sides of the split.

5. The quick-release water atomizing tundish positioning device of claim 1, wherein: The top of the surface of the heat-insulating positioning cylinder (5) is provided with a slot for positioning.

6. The quick-release water atomizing tundish positioning device of claim 1, wherein: Both the flow divider ring (6) and the retaining ring (2) are integral circular rings cut into two equal parts, and the surface of the flow divider ring (6) is provided with air holes.

7. The quick-release water atomizing tundish positioning device of claim 1, wherein: The upper and lower planes of the retaining ring (2) are perpendicular to the axis of the retaining ring (2), and the inner circular surface is perpendicular to the upper and lower planes.

8. The quick-release water atomizing tundish positioning device of claim 1, wherein: The positioning ring (3) is a circular ring structure, and its upper and lower planes are perpendicular to the center line of the positioning ring (3).

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