Spiral air seal discharging machine
By installing an air seal ring on the rotating shaft of the screw conveyor and using air guide holes to generate airflow, the problem of poor sealing effect is solved, a more stable sealing effect is achieved, and material leakage and contamination are reduced.
Patent Information
- Application Number
- CN202520068473.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-01-13
AI Technical Summary
The existing screw conveyor has poor sealing performance, especially at the connection between the shaft and the housing, which can easily lead to material leakage or contamination. The existing sealing method fails quickly due to wear, resulting in poor sealing stability.
An air seal ring is installed on the rotating shaft. The air guide hole generates airflow under centrifugal force, which improves the sealing effect and inhibits material diffusion and gas leakage.
It achieves higher sealing stability, reduces material leakage and contamination inside the housing, and the sealing process is not affected by wear, resulting in long-lasting performance.
Smart Images
Figure CN223687439U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a discharging machine technical field especially is related to a spiral gas seal discharging machine. BACKGROUND
[0002] The spiral discharging machine is a kind of common material conveying device, is widely used in chemical industry, food and other fields, and the working mode of the spiral discharging machine is to drive the blade to rotate by internal shaft to push material movement, but the rotating connection of shaft and shell is poor in sealing effect due to dynamic assembly relationship, which can easily cause raw material leakage or raw material pollution in use.
[0003] In the prior art, the sealing effect is mainly improved by sealing brush or reducing assembly gap, and these sealing methods are quickly invalid due to wear caused by dynamic assembly relationship, and the sealing stability is poor. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a spiral gas seal discharging machine, which can generate airflow by the gas seal ring rotating with the shaft, improve the sealing effect by using airflow, and has higher sealing stability.
[0005] The utility model provides a spiral gas seal discharging machine, which comprises:
[0006] A shell and a shaft, the shaft is rotatably assembled in the shell and penetrates the side wall of the shell;
[0007] A gas seal ring, which is located in the shell and assembled on the shaft, is circular, the outer cylindrical surface of the gas seal ring is close to the inner wall of the shell and has a gap, a gas guide hole is formed in the gas seal ring, and the two ends of the gas guide hole are located on the outer cylindrical surface and the side surface of the gas seal ring respectively;
[0008] The gas seal ring is driven to rotate by the shaft, and under the action of centrifugal force, the air in the gas guide hole flows to the side close to the outer cylindrical surface of the gas seal ring to generate airflow, and the airflow returns to the shell through the gap between the gas seal ring and the shell.
[0009] Preferably, one end of the gas guide hole on the side surface of the gas seal ring is an air inlet end, and the air inlet end of the gas guide hole is in the shape of a trumpet mouth.
[0010] Preferably, one end of the gas guide hole on the outer cylindrical surface of the gas seal ring is an air outlet end, and the air outlet end of the gas guide hole is inclined towards the inside of the shell.
[0011] Preferably, the gas guide hole is inclined along the outer cylindrical surface of the gas seal ring and uniformly distributed along the outer cylindrical surface of the gas seal ring.
[0012] Preferably, the shell comprises a storage hopper and a feeding pipe, the storage hopper is integrally arranged on the outer wall of the feeding pipe, and the rotating shaft is rotatably arranged in the feeding pipe through the side wall of one end of the feeding pipe.
[0013] Preferably, the storage hopper is communicated with the feeding pipe at a position away from the position where the rotating shaft penetrates the feeding pipe.
[0014] Preferably, the feeding pipe is integrally provided with a discharge port away from the position where the rotating shaft penetrates the feeding pipe, the discharge port is funnel-shaped, and the funnel barrel end of the discharge port is communicated with the inside of the feeding pipe.
[0015] Preferably, the spiral air seal discharging machine further comprises a pressure valve, the pressure valve is fixedly arranged on the discharge port, and the pressure valve is communicated with the funnel nozzle of the discharge port.
[0016] Preferably, the rotating shaft is integrally provided with a dragon blade, the dragon blade is located in the feeding pipe, and the rotating shaft drives the dragon blade to rotate and push the material to move towards the discharge port.
[0017] Preferably, the spiral air seal discharging machine further comprises a driving motor, and the driving end of the driving motor is fixedly connected with the rotating shaft.
[0018] The technical scheme of the utility model adds the air seal ring on the rotating shaft, the air flow is generated in the guide hole under the action of centrifugal force due to the different distance between the two ends and the rotating shaft during the rotation of the air seal ring and the rotating shaft, the air flow is blown out from the outer cylindrical surface of the air seal ring into the gap between the air seal ring and the shell, the diffusion of the material in the shell to the assembly position of the shell and the rotating shaft is inhibited, the existence of the air flow will cause the air pressure to be reduced near the assembly position of the shell and the rotating shaft in the shell, thereby inhibiting the diffusion of the gas, the sealing process is not afraid of wear and tear, and more stable sealing effect is achieved. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical scheme in the specific embodiment or prior art of the utility model, the drawings needed in the specific embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.
[0020] Figure 1 It is a sectional view of the spiral air seal discharging machine of the utility model;
[0021] Figure 2 It is Figure 1 It is an axonometric view of the shell in the spiral air seal discharging machine;
[0022] Figure 3 It is Figure 1 It is an axonometric view of the rotating shaft in the spiral air seal discharging machine;
[0023] Figure 4 for Figure 1 Partial enlarged view of A in the screw air seal discharging machine;
[0024] Figure 5 for Figure 1 Axonometric view of the air seal ring in the screw air seal discharging machine;
[0025] Figure 6 for Figure 1 Sectional view of the air seal ring in the screw air seal discharging machine.
[0026] BRIEF DESCRIPTION OF DRAWINGS
[0027] 1, housing; 11, storage hopper; 12, conveying pipe; 2, rotating shaft; 3, air seal ring; 31, air guide hole; 4, pressure valve; 5, driving motor. DETAILED DESCRIPTION
[0028] The technical solutions of the present application will be described clearly and completely below in conjunction with the embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.
[0030] In the description of the utility model, need understanding is, the term "first", "second" is only used for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, "a plurality of" means two or more than two, unless otherwise explicitly specified. In addition, the terms "mounting", "connecting", "connection" should be broadly understood, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0031] In combination Figures 1 to 6 As shown in the utility model, a spiral air seal discharging machine comprises a shell 1, a rotating shaft 2 and an air seal ring 3.
[0032] In combination Figures 1 to 6 As shown in the utility model, the rotating shaft 2 is rotatably assembled in the shell 1 through the side wall of the shell 1, and the air seal ring 3 is located in the shell 1 and assembled on the rotating shaft 2. The air seal ring 3 is annular, the outer cylindrical surface of the air seal ring 3 is close to the inner wall of the shell 1 and has a gap, the air seal ring 3 is provided with a gas guide hole 31, and the two ends of the gas guide hole 31 are located on the outer cylindrical surface and the side surface of the air seal ring 3 respectively. The air seal ring 3 is driven to rotate by the rotating shaft 2, and under the action of centrifugal force, the air in the gas guide hole 31 flows to the side close to the outer cylindrical surface of the air seal ring 3 to generate air flow, and the air flow returns to the shell 1 through the gap between the air seal ring 3 and the shell 1.
[0033] In the embodiment, the air seal ring 3 is additionally installed on the rotating shaft 2. During the rotation of the air seal ring 3 with the rotating shaft 2, air flow is generated in the gas guide hole 31 under the action of centrifugal force due to the different distances of the two ends from the rotating shaft. The air flow blows out from the outer cylindrical surface of the air seal ring 3 into the gap between the air seal ring 3 and the shell 1, thereby inhibiting the diffusion of the material in the shell 1 to the assembly position of the shell 1 and the rotating shaft 2. At the same time, the existence of the air flow will cause the air pressure near the assembly position of the shell 1 and the rotating shaft 2 in the shell 1 to decrease, thereby inhibiting the diffusion of the gas. The sealing process is not afraid of wear, and a more stable sealing effect is achieved.
[0034] In some embodiments, in combination Figure 4 , Figure 5 As shown in the utility model, one end of the gas guide hole 31 on the side surface of the air seal ring 3 is an air inlet end, and the air inlet end of the gas guide hole 31 is in the shape of a trumpet mouth. The trumpet mouth-shaped air inlet end is beneficial to the acceleration of the gas and the formation of the air flow.
[0035] In some embodiments, in combinationFigure 4 、 Figure 5 As shown in the figure, the air guide hole 31 is located at one end of the outer cylindrical surface of the air seal ring 3 as an air outlet end, and the air outlet end of the air guide hole 31 is inclined towards the inside of the shell 1. The inclined air outlet end is conducive to the return of the gas into the shell 1, and can reduce the impact of the gas flow on the connection position of the shell 1 and the rotating shaft 2, thereby improving the reliability of the seal.
[0036] In some embodiments, in combination with Figure 6 As shown in the figure, the air guide hole 31 is inclined along the outer cylindrical surface of the air seal ring 3 and uniformly distributed along the outer cylindrical surface of the air seal ring 3. The inclined air guide hole 31 can obtain a longer length, which is conducive to the acceleration of the gas flow and improves the air sealing effect.
[0037] In some embodiments, in combination with Figure 2 As shown in the figure, the shell 1 includes a storage hopper 11 and a material conveying pipe 12. The storage hopper 11 is integrally formed on the outer wall of the material conveying pipe 12. The rotating shaft 2 penetrates through the side wall of one end of the material conveying pipe 12 and is rotatably assembled in the material conveying pipe 12. The material is put into the storage hopper 11 and transported to the designated position through the material conveying pipe 12 to complete the material output.
[0038] In some embodiments, in combination with Figure 2 As shown in the figure, the storage hopper 11 is communicated with the material conveying pipe 12 away from the penetration position of the rotating shaft 2 in the material conveying pipe 12. In this way, the reverse diffusion of the material to the connection position of the shell 1 and the rotating shaft 2 is avoided, which can effectively increase the air sealing effect, especially in the case of solid material, the effect is extremely obvious.
[0039] In some embodiments, in combination with Figure 2 As shown in the figure, the material conveying pipe 12 integrally forms a material outlet away from the penetration end of the rotating shaft 2. The material outlet is in the shape of a funnel. The funnel barrel end of the material outlet is communicated with the inside of the material conveying pipe 12. The funnel-shaped material outlet can improve the continuity of the material output and improve the material output accuracy.
[0040] In some embodiments, in combination with Figure 2 As shown in the figure, the spiral air seal material discharging machine further includes a pressure valve 4. The pressure valve 4 is fixedly assembled on the material outlet. The pressure valve 4 is communicated with the funnel nozzle of the material outlet. The pressure valve 4 can effectively improve the airtightness of the material outlet, and is conducive to the accumulation of the material in the material conveying pipe 12, thereby improving the reliability of the material conveying.
[0041] In some embodiments, in combination with Figure 3 As shown in the figure, the rotating shaft 2 integrally forms a dragon blade. The dragon blade is located in the material conveying pipe 12. The rotating shaft 2 drives the dragon blade to rotate and push the material towards the material outlet. The contact area between the dragon blade and the material is larger, and the effect of conveying the material is better.
[0042] In some embodiments, in combination withFigure 1 As shown, the screw air seal discharging machine further comprises a driving motor 5, a driving end of the driving motor 5 is fixedly connected with the rotating shaft 2, and the driving motor 5 is assembled in the discharging machine as a power element.
[0043] Working process: the driving motor 5 drives the rotating shaft 2 to rotate, the air seal ring 3 rotates along with the rotating shaft 2, in the rotating process of the air seal ring 3, the air in the air guide hole 31 moves away from the rotating shaft 2 under the centrifugal force, since the two ends of the air guide hole 31 are respectively arranged on the outer cylindrical surface and the side surface of the air seal ring 3, the distance between the two ends and the rotating shaft 2 is different, so that the air flow is blown out from the port of the air guide hole 31 on the side of the outer cylindrical surface of the air seal ring 3.
[0044] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the utility model, rather than limit them; although the utility model has been explained in detail with reference to the above embodiments, those skilled in the art should understand that: the technical solutions recorded in the above embodiments can still be modified, or some or all of the technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.
Claims
1. A screw gas seal discharge machine characterized by, The utility model relates to a kind of rotary air seal structure, including: Housing (1) and rotating shaft (2), the rotating shaft (2) is rotatably assembled in housing (1) through the side wall of housing (1); Air seal ring (3), the air seal ring (3) is located in the housing (1) and is assembled on the rotating shaft (2), the air seal ring (3) is circular ring, the outer cylindrical surface of the air seal ring (3) is close to the inner wall of the housing (1) and remains gap, air guide hole (31) is opened on the air seal ring (3), and the two ends of the air guide hole (31) are located on the outer cylindrical surface and the side of the air seal ring (3) respectively; The air seal ring (3) is driven to rotate by rotating shaft (2), and under the action of centrifugal force, air in air guide hole (31) flows to the side close to the outer cylindrical surface of air seal ring (3) to generate air flow, and the air flow returns to the housing (1) through the gap between air seal ring (3) and housing (1).
2. The spiral airlock discharger of claim 1, wherein, The end of the air guide hole (31) on the side of the air seal ring (3) is the air inlet end, and the air inlet end of the air guide hole (31) is in the shape of a trumpet mouth.
3. The spiral airlock discharger of claim 1, wherein, The end of the air guide hole (31) on the outer cylindrical surface of the air seal ring (3) is the air outlet end, and the air outlet end of the air guide hole (31) is inclined towards the inside of the housing (1).
4. The spiral airlock discharger of claim 1, wherein, The air guide hole (31) is inclined along the outer cylindrical surface of the air seal ring (3) and uniformly distributed along the outer cylindrical surface of the air seal ring (3).
5. The spiral airlock discharger of claim 1, wherein, The housing (1) includes a storage hopper (11) and a conveying pipe (12), the storage hopper (11) is integrally formed on the outer wall of the conveying pipe (12), and the rotating shaft (2) is rotatably assembled in the conveying pipe (12) through the side wall of one end of the conveying pipe (12).
6. The spiral airlock discharger of claim 5, wherein, The storage hopper (11) is connected to the conveying pipe (12) away from the penetrating position of the rotating shaft (2) in the conveying pipe (12).
7. The spiral airlock discharger of claim 5, wherein, The conveying pipe (12) is integrally formed with a discharge port away from the penetrating end of the rotating shaft (2), the discharge port is in the shape of a funnel, and the funnel barrel end of the discharge port is connected to the inside of the conveying pipe (12).
8. The spiral airlock discharger of claim 7, wherein, Further comprising a pressure valve (4), the pressure valve (4) is fixedly assembled on the discharge port, and the pressure valve (4) is connected to the funnel nozzle of the discharge port.
9. The spiral airlock discharger of claim 7, wherein, The rotating shaft (2) is integrally formed with a dragon blade, the dragon blade is located in the conveying pipe (12), and the rotating shaft (2) drives the dragon blade to rotate and push the material to move towards the discharge port.
10. The spiral airlock discharger of claim 1, wherein, Further comprising a driving motor (5), and the driving end of the driving motor (5) is fixedly connected to the rotating shaft (2).