Compact slurry suction rotary joint

Abstract

The utility model relates to the technical field of material transportation, and discloses a compact slurry suction rotary joint which comprises a mold main body, a feeding main shaft, an air inlet pipe fitting and a discharging pipe fitting, a cavity is formed in the mold body, a first opening is formed in the front end of the cavity, a cover plate used for sealing the cavity is arranged at the rear end of the cavity, a second opening is formed in the upper portion of the cavity, and a third opening is formed in the lower portion of the cavity. The mold main body comprises a butterfly valve piece, and the butterfly valve piece is arranged in the cavity and used for controlling flowing of materials; the feeding main shaft is arranged at the front end of the cavity, the feeding main shaft communicates with the cavity through the first opening, and the feeding main shaft rotates in the circumferential direction of the cavity; the air inlet pipe fitting is arranged above the mold main body, the air inlet pipe fitting communicates with the cavity through the second opening, and the air inlet pipe fitting injects a positive pressure cavity into the cavity; and the discharging pipe fitting is arranged below the mold main body, communicates with the cavity through the third opening, and introduces negative pressure gas into the cavity.

Description

Technical Field

[0001] This utility model relates to the field of material transportation technology, and in particular to a compact suction rotary joint. Background Technology

[0002] The suction rotary joint is a sealed rotary connector that rotates 360° to transport media. Its main function is to realize the continuous transport of fluid media in rotating equipment while maintaining the sealing of the connection.

[0003] Currently, traditional rotary joints for slurry suction often use flange joints stacked layer by layer on one side of the main shaft, resulting in a high protrusion on one side of the compact rotary joint, which leads to a large space occupation. At the same time, the butterfly valve and other components in traditional rotary joints are far from the main shaft, and each component needs to be controlled independently. The operation of the entire rotary joint is cumbersome, the material transportation efficiency is low, and the operating cost of the rotary joint is high. Utility Model Content

[0004] The technical problem this utility model aims to solve is that traditional rotary suction joints often use flange joints stacked layer by layer on one side of the main shaft, which increases the space occupied by the rotary suction joint, the distance between each component and the main shaft is relatively far, and the arrangement is relatively scattered, resulting in low material transportation efficiency and high transportation costs.

[0005] To address the aforementioned technical problems, this utility model provides a compact rotary suction joint, comprising a mold body, a feeding spindle, an air inlet pipe, and a discharge pipe. The mold body has an internal cavity with a first opening at its front end, a cover plate at its rear end for sealing the cavity, a second opening at its top, and a third opening at its bottom. The mold body includes a butterfly valve, which is positioned within the cavity to control material flow. The feeding spindle is located at the front end of the cavity, communicating with the cavity through the first opening, and rotates circumferentially around the cavity. The air inlet pipe is positioned above the mold body, communicating with the cavity through the second opening, and injects positive pressure gas into the cavity. The discharge pipe is located below the mold body, communicating with the cavity through the third opening, and introduces negative pressure gas into the cavity to suction out material.

[0006] Furthermore, all materials are flowable slurries.

[0007] In one embodiment, the mold body further includes a connecting part and a first flange. One end of the connecting part is connected to a butterfly valve, and the other end of the connecting part is connected to a cover plate. The end of the butterfly valve opposite to the connecting part is connected to the first flange, and the end of the first flange opposite to the butterfly valve is connected to the feed spindle.

[0008] In one embodiment, the cavity includes a vacuum chamber with a third opening, and the vacuum chamber is connected to the discharge pipe through the third opening.

[0009] In one embodiment, the cavity further includes a flow channel with a first opening and a second opening. The flow channel is connected to the feed spindle through the first opening and to the air inlet pipe through the second opening. A butterfly valve is disposed between the flow channel and the vacuum chamber and is used to control the connection between the flow channel and the vacuum chamber.

[0010] In one embodiment, the mold body further includes a second flange, which is sleeved on the outer periphery of the butterfly valve component. One end of the second flange is connected to the butterfly valve component, and the other end is connected to the connecting part.

[0011] Furthermore, the butterfly valve component is a pneumatic butterfly valve.

[0012] In one embodiment, the feeding spindle includes a feeding tube and a rotating tube. One end of the feeding tube is connected to the rotating tube, and the other end of the feeding tube is connected to a material storage area. The other end of the rotating tube is connected to the cavity through a first opening.

[0013] In one embodiment, the feed spindle further includes a rotary bearing disposed on the outer periphery of the rotating tube, which drives the rotating tube to rotate circumferentially along the first opening.

[0014] In one embodiment, the feed spindle further includes a sealing gasket, which is sleeved on the outer periphery of the rotating tube. One end of the sealing gasket is connected to the rotating tube, and the other end is connected to the first flange.

[0015] In one embodiment, a plurality of fasteners are provided on the side of the cover plate away from the cavity. The plurality of fasteners are spaced apart circumferentially along the cover plate, and the cover plate is fixedly connected to the mold body by the plurality of fasteners.

[0016] Compared with the prior art, the compact suction rotary joint of this utility model has the following advantages: 1) The mold body serves as the core of the rotary joint. The mold body has an internal cavity designed to accommodate materials. The front end of the cavity has a first opening connected to the feeding spindle; the rear end has a cover plate to seal the cavity and prevent material leakage. The top and bottom of the cavity have second and third openings respectively for connecting the air inlet and outlet pipes, effectively reducing the space occupied by the rotary joint. Simultaneously, a butterfly valve is installed inside the cavity to control the flow of materials. The butterfly valve can be rotated to open or close the material channel, thereby achieving precise control of the material flow rate; 2) The feeding spindle is connected to the first opening at the front end of the mold body cavity and communicates with the inside of the cavity through this opening. The main function of the feeding spindle is to inject materials into the cavity. The shaft can rotate circumferentially around the cavity, allowing the rotary joint to adapt to rotating or reciprocating equipment and achieve continuous material transfer; 3) The air inlet pipe is located above the mold body and connects to the inside of the cavity through the second opening. The main function of the air inlet pipe is to inject positive pressure gas into the cavity. Positive pressure blowing can remove residual material on the inner wall of the cavity, ensuring the cleanliness of the mold body and smooth operation for the next use. At the same time, the positive pressure gas can also maintain the pressure stability in the cavity and improve the material transfer efficiency; 4) The discharge pipe is located below the mold body and connects to the inside of the cavity through the third opening. The discharge pipe generates suction by introducing negative pressure gas into the cavity, thereby sucking out the material in the cavity, ensuring that the material can be evenly and quickly sucked into the mold. The cooperation between the discharge pipe and the air inlet pipe improves the material transport efficiency and reduces the operating cost of the rotary joint. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a compact suction rotary joint according to an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of a compact suction rotary joint according to an embodiment of the present invention.

[0019] Figure 3 This is a front view of a compact rotary suction joint according to an embodiment of the present invention.

[0020] In the diagram, 1. Mold body; 11. Cavity; 111. Flow channel; 112. Vacuum chamber; 12. Connecting part; 13. Butterfly valve; 14. First flange; 15. Second flange; 16. Cover plate; 161. Fastener; 2. Feed spindle; 21. Feed pipe; 22. Rotating pipe; 23. Rotary bearing; 24. Sealing gasket; 3. Air inlet pipe; 4. Discharge pipe. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0022] In the description of this utility model, it should be understood that when an element is referred to as "fixed to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to or indirectly connected to the other element. The terms "mounted," "connected," and "attached" should be interpreted broadly, for example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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 communication of two elements or the interaction between two elements. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0023] In the description of this utility model, it should be understood that the terms "height," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0025] like Figures 1 to 3As shown, the present invention preferably provides a compact rotary suction joint, which includes a mold body 1, a feeding spindle 2, an air inlet pipe 3, and a discharge pipe 4; the mold body 1 has a cavity 11 inside, a first opening at the front end of the cavity 11, a cover plate 16 for sealing the cavity 11 at the rear end, a second opening at the top of the cavity 11, and a third opening at the bottom of the cavity 11; the mold body 1 includes a butterfly valve 13, which is disposed in the cavity 11 to control the flow of materials. The feeding spindle 2 is located at the front end of the cavity 1 and is connected to the cavity 11 through the first opening. The feeding spindle 2 rotates around the cavity 11. The air inlet pipe 3 is located above the mold body 1 and is connected to the cavity 11 through the second opening. The air inlet pipe 3 injects positive pressure into the cavity 11. The discharge pipe 4 is located below the mold body 1 and is connected to the cavity 11 through the third opening. The discharge pipe 4 introduces negative pressure gas into the cavity 11 to suck out the material in the cavity 11.

[0026] Based on the above technical features, this utility model embodiment, through the setting of the mold body 1, which serves as the core of the rotary joint, has a cavity 11 inside for accommodating materials. The front end of the cavity 11 has a first opening connected to the feeding spindle 2; the rear end has a cover plate 16 for sealing the cavity 11 to prevent material leakage. The top and bottom of the cavity 11 have a second and a third opening, respectively, for connecting the air inlet pipe 3 and the discharge pipe 4, effectively reducing the space occupied by the rotary joint. Simultaneously, a butterfly valve 13 is located inside the cavity 11 to control the flow of materials. The butterfly valve 13 can be rotated to open or close the material channel, thereby achieving precise control of the material flow rate. The feeding spindle 2 is connected to the first opening at the front end of the cavity 11 of the mold body 1 and communicates with the inside of the cavity 11 through this opening. The main function of the feeding spindle 2 is to inject materials into the cavity 11. The feeding spindle 2 can move along the cavity... The circumferential rotation of cavity 11 allows the rotary joint to adapt to rotating or reciprocating equipment, enabling continuous material transfer. The air inlet pipe 3, positioned above the mold body 1 and connected to the interior of cavity 11 via a second opening, injects positive pressure gas into the cavity 11. This positive pressure airflow removes residual material from the inner wall of cavity 11, ensuring the cleanliness of the mold body 1 and smooth operation for future use. Simultaneously, the positive pressure gas maintains stable pressure within cavity 11, improving material transfer efficiency. The discharge pipe 4, positioned below the mold body 1 and connected to the interior of cavity 11 via a third opening, introduces negative pressure gas into cavity 11, generating suction to draw out material. This ensures that material is drawn into the mold evenly and quickly. The combination of discharge pipe 4 and air inlet pipe 3 improves material transport efficiency and reduces the operating cost of the rotary joint.

[0027] As some embodiments of this utility model, such as Figure 1As shown, the mold body 1 also includes a connecting part 12 and a first flange 14. One end of the connecting part 12 is connected to a butterfly valve 13, and the other end of the connecting part 12 is connected to a cover plate 16. The end of the butterfly valve 13 facing away from the connecting part 12 is connected to the first flange 14, and the end of the first flange 14 facing away from the butterfly valve 13 is connected to the feeding spindle 2. Through the arrangement of the connecting part 12 and the first flange 14, where the connecting part 12 is part of the mold body 1 and serves to connect other components, the butterfly valve 13 can be fixed or connected to other parts of the mold body 1 via the connecting part 12, and the other end of the connecting part 12 is connected to the cover plate 16, ensuring that the mold body 1 can be closed or opened when needed. The end of the first flange 14 facing away from the butterfly valve 13 is connected to the feeding spindle 2, ensuring that material can enter the mold body 1 or the area controlled by the butterfly valve 13 through the feeding spindle 2.

[0028] As some embodiments of this utility model, such as Figure 1 As shown, the cavity 11 includes a vacuum chamber 112, which has a third opening and is connected to the discharge pipe 4 through the third opening. Through the arrangement of the flow channel 111 and the vacuum chamber 112, the flow channel 111 allows material to flow or be transported within the cavity 11. The vacuum chamber 112 is a specific area within the cavity 11, typically evacuated or maintained at a low pressure to facilitate material extraction by the discharge pipe 4. The third opening is an opening or channel on the vacuum chamber 112 that allows material to flow out of or into the vacuum chamber 112.

[0029] As some embodiments of this utility model, such as Figure 1 As shown, the cavity 11 also includes a flow channel 111, which has a first opening and a second opening. The flow channel 111 is connected to the feed spindle 2 through the first opening and to the air inlet pipe 3 through the second opening. A butterfly valve 13 is located between the flow channel 111 and the vacuum chamber 112, and is used to control the connection between the flow channel 111 and the vacuum chamber 112. Both the first and second openings are located on the flow channel 111 and serve as channels connecting the flow channel 111 to the outside world or other components. The first opening, connected to the feed spindle 2, is the main inlet for material entering the flow channel 111. The second opening, connected to the air inlet pipe 3, is used to introduce high-pressure gas into the flow channel 111, allowing the high-pressure gas flow to drive the material in the flow channel 111 towards the vacuum chamber 112. This improves the material transport efficiency.

[0030] As some embodiments of this utility model, such as Figure 1As shown, the mold body 1 also includes a second flange 15, which is fitted around the outer periphery of the butterfly valve 13. One end of the second flange 15 is connected to the butterfly valve 13, and the other end is connected to the connecting part 12. With the addition of the second flange 15, the structure of the mold body 1 is more stable, and the installation and positioning of the butterfly valve 13 and the connecting part 12 are more precise. The second flange 15 also serves a sealing function, preventing leakage of materials or fluids between the butterfly valve 13 and the connecting part 12.

[0031] As some embodiments of this utility model, such as Figures 1 to 2 As shown, the feeding spindle 2 includes a feeding pipe 21 and a rotating pipe 22. One end of the feeding pipe 21 is connected to the rotating pipe 22, and the other end of the feeding pipe 21 is connected to a material storage area. The other end of the rotating pipe 22 is connected to the cavity 11 through a first opening. The feeding pipe 21 is a static pipe used to transport materials from the material storage area to the rotating pipe 22. The rotating pipe 22 is a rotatable pipe connected to one end of the feeding pipe 21 and transports materials into the cavity 11. When materials need to be transported into the cavity 11, the materials in the material storage area are first transported into the feeding pipe 21, and then the rotating pipe 22 starts to rotate, transporting the materials from the feeding pipe 21 into the cavity 11.

[0032] As some embodiments of this utility model, such as Figure 1 As shown, the feed spindle 2 also includes a rotary bearing 23, which is disposed on the outer periphery of the rotating tube 22. The rotary bearing 23 drives the rotating tube 22 to rotate circumferentially along the first opening. Through the rotary bearing 23, the rotating tube 22 can achieve smooth and continuous rotational motion. This rotational motion allows the material to be uniformly transported from the material storage area to the cavity 11 through the feed tube 21. The design of the rotary bearing 23 ensures the stability and reliability of the rotating tube 22 during rotation.

[0033] As some embodiments of this utility model, such as Figure 1 As shown, the feed spindle 2 also includes a sealing gasket 24, which is fitted around the outer periphery of the rotating tube 22. One end of the sealing gasket 24 is connected to the rotating tube 22, and the other end is connected to the first flange 14. The sealing gasket 24, with one end tightly fitted to the outer periphery of the rotating tube 22 and the other end connected to the first flange 14, ensures a good seal at the connection between the rotating tube 22 and the first flange 14. By providing additional sealing, the sealing gasket 24 prevents material or gas from leaking out from the connection between the rotating tube 22 and the first flange 14, which is crucial for maintaining pressure and temperature within the cavity 11 or preventing material contamination.

[0034] As some embodiments of this utility model, such as Figures 1 to 3As shown, a plurality of fasteners 161 are provided on the side of the cover plate 16 opposite to the cavity 11. These fasteners 161 are spaced circumferentially along the cover plate 16, and the cover plate 16 is fixedly connected to the mold body 1 via these fasteners 161. This connection method ensures tight contact and a secure connection between the cover plate 16 and the mold body 1. The fasteners 161 may include bolts, nuts, screws, or other types of fixing devices, depending on the application requirements and the design of the mold body 1.

[0035] In summary, the present invention provides a compact rotary joint for material suction, which, compared with the prior art, has the following advantages: the mold body 1 serves as the core of the rotary joint, and the mold body 1 has an internal cavity 11 for accommodating materials. The front end of the cavity 11 has a first opening connected to the feeding spindle 2; the rear end has a cover plate 16 for sealing the cavity 11 to prevent material leakage. The cavity 11 has a second opening above and a third opening below, respectively, for connecting the air inlet pipe 3 and the discharge pipe 4, effectively reducing the footprint of the rotary joint. Simultaneously, a butterfly valve 13 is installed inside the cavity 11 to control the flow of materials. The butterfly valve 13 can be rotated to open or close the material channel, thereby achieving precise control of the material flow rate. The feeding spindle 2 is connected to the first opening at the front end of the cavity 11 of the mold body 1 and communicates with the interior of the cavity 11 through this opening. The main function of the feeding spindle 2 is to inject materials into the cavity 11. The feeding spindle 2 can rotate circumferentially along the cavity 11, allowing the rotary joint to adapt to rotating or reciprocating equipment and achieve continuous material transfer. The air inlet pipe 3 is located above the mold body 1 and communicates with the inside of the cavity 11 through a second opening. The main function of the air inlet pipe 3 is to inject positive pressure gas into the cavity 11. Positive pressure blowing can remove residual material on the inner wall of the cavity 11, ensuring the cleanliness of the mold body 1 and smooth operation for the next use. At the same time, the positive pressure gas can also maintain the pressure stability inside the cavity 11 and improve the material transfer efficiency. The discharge pipe 4 is located below the mold body 1 and communicates with the inside of the cavity 11 through a third opening. The discharge pipe 4 generates suction by introducing negative pressure gas into the cavity 11, thereby sucking out the material inside the cavity 11, ensuring that the material can be evenly and quickly sucked into the mold. The cooperation between the discharge pipe 4 and the air inlet pipe 3 improves the material transport efficiency and reduces the operating cost of the rotary joint.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A compact, suction lancing swivel characterized in that, The mould body, the feeding main shaft, the air inlet pipe and the discharging pipe; The cavity is provided with a first opening at the front end, a cover plate for sealing the cavity at the rear end, a second opening at the top, and a third opening at the bottom. The feeding main shaft is arranged at the front end of the cavity and communicates with the cavity through the first opening. The air inlet pipe is arranged above the mould body and communicates with the cavity through the second opening. The discharging pipe is arranged below the mould body and communicates with the cavity through the third opening.

2. The compact suction lancing swivel according to claim 1, characterized in that The mould body further comprises a connecting part and a first flange.

3. The compact suction lancing swivel according to claim 2, characterized in that The cavity comprises a vacuum chamber provided with the third opening and communicating with the discharging pipe through the third opening.

4. The compact suction lancing swivel according to claim 3, characterized in that The cavity further comprises a flow passage provided with the first and second openings.

5. The compact suction lancing swivel according to claim 4, characterized in that The mould body further comprises a second flange sleeved on the outer periphery of the butterfly valve.

6. The compact suction lancing swivel of claim 2, wherein, The feeding main shaft comprises a feeding pipe and a rotating pipe.

7. The compact suction lancing swivel of claim 6, wherein, The feeding main shaft further comprises a rotating bearing arranged on the outer periphery of the rotating pipe.

8. The compact suction lancing swivel of claim 7, wherein, The cover plate is provided with a plurality of fasteners on the side away from the cavity.

9. The compact suction lancing swivel of claim 1, wherein, The cover plate is fixedly connected with the mould body through the fasteners.

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