Vacuum ladle ejector structure in high altitude area
By optimizing the nozzle structure design of the high-altitude vacuum ejector, the problem of establishing vacuum in high-altitude areas has been solved, improving aluminum suction efficiency and equipment reliability, and meeting the production needs of the aluminum industry in high-altitude areas.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENYANG HUIFENG MASCH CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-04-17
AI Technical Summary
Existing ejectors are difficult to establish a vacuum in high-altitude areas due to low air pressure and thin air, resulting in low aluminum extraction efficiency and frequent equipment failures, which cannot meet the production needs of the aluminum industry in high-altitude areas.
A vacuum ejector structure for high-altitude regions was designed. By optimizing the nozzle mechanism, including the main nozzle section, the secondary nozzle section, and the high-speed linear airflow channel, the pressurization and acceleration effect of compressed air is enhanced, forming a stable vacuum environment.
It improves aluminum absorption efficiency, reduces equipment wear, extends equipment life, reduces maintenance costs and risks, and enhances the equipment's resistance to contamination in high-altitude, low-pressure environments.
Smart Images
Figure CN224134881U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ejector technology, specifically to a vacuum lifting ejector structure for high-altitude areas. Background Technology
[0002] In aluminum production, vacuum ladle is a crucial piece of equipment used to extract and transport molten aluminum from electrolytic cells. The ejector, as the core component of the vacuum ladle, directly impacts the extraction efficiency and transportation safety of the molten aluminum. With the expansion of the aluminum industry into high-altitude regions, altitudes above 2500 meters present significant challenges to ejector performance due to low air pressure and thin air. The ejector's working principle involves using a high-speed airflow to create negative pressure at the nozzle outlet, thereby drawing in surrounding air and creating a vacuum environment. However, in high-altitude areas, the reduced atmospheric pressure and air density result in insufficient air intake, making it difficult to establish a vacuum. Furthermore, the harsh suction conditions of air compressors in high-altitude regions reduce the pressure and flow rate of compressed air, further impacting ejector efficiency. Existing ejector nozzle mechanisms are not designed with the specific conditions of high-altitude environments in mind, leading to poor adaptability and making traditional ejector designs unsuitable for high-altitude production. This results in low aluminum extraction efficiency, frequent equipment failures, and hinders the development of the aluminum industry in high-altitude regions. Utility Model Content
[0003] The purpose of this utility model is to provide a vacuum lifting ejector structure for high-altitude areas, in order to solve the problem that the nozzle mechanism of the existing ejector mentioned in the background art does not fully consider the special working conditions of the plateau environment in its design, resulting in poor adaptability in plateau areas. This makes it difficult for traditional ejector designs to meet production needs in plateau environments, leading to low aluminum suction efficiency, frequent equipment failures, and restricting the development of the aluminum industry in plateau areas.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a vacuum lifting ejector structure for high-altitude areas, comprising a vacuum seat and a nozzle. A connecting seat is threadedly connected to one side of the vacuum seat. The nozzle is disposed on the other side of the vacuum seat, with its output end corresponding to the connecting seat. An air outlet is threadedly connected to the outer end of the connecting seat. The air outlet has a trumpet-shaped structure. One side of an exhaust housing is clamped and fixed between the connecting seat and the air outlet. The air outlet penetrates the other side of the exhaust housing. A silencer housing is provided on the outside of the other side of the exhaust housing. A silencer is provided on the other side of the exhaust housing and inside the silencer housing. A connecting pipe connects the exhaust housing and the silencer. An output pipe penetrates the side wall of the exhaust housing. An input port is provided at the lower end of the vacuum seat.
[0005] The nozzle includes a main nozzle section, which has a main air intake channel inside. The output end of the main nozzle section is connected to a secondary nozzle section via a thread. The input end of the secondary nozzle section is provided with a pressurization and acceleration air channel. The output end of the secondary nozzle section is connected to the pressurization and acceleration air channel via a high-speed linear airflow channel.
[0006] Preferably, both the main air intake and the high-speed linear airflow channel are cylindrical channel structures. The inner diameter of the main air intake is larger than the inner diameter of the high-speed linear airflow channel. The booster and acceleration air intake is a tapered flow channel structure. The inner diameter of the input end of the booster and acceleration air intake is the same as the inner diameter of the main air intake. The inner diameter of the output end of the booster and acceleration air intake is the same as the inner diameter of the high-speed linear airflow channel. The contraction ratio of the booster and acceleration air intake is 2:1-3:1, and the ratio of the length of the booster and acceleration air intake to the inlet diameter is 1.5:1-2:1.
[0007] Preferably, a fixing plate is provided on the other side of the exhaust housing at a position corresponding to the silencer housing. The silencer housing is fixedly connected to the fixing plate via a connecting flange. The silencer is fixedly mounted on the fixing plate via a connecting flange. The connecting pipe passes through the fixing plate.
[0008] Preferably, the output end of the secondary nozzle section has a conical structure, and the connecting seat has a suction opening at a position corresponding to the secondary nozzle section, the suction opening being configured to correspond to the conical structure of the secondary nozzle section.
[0009] Preferably, the main nozzle section is fixedly connected to the vacuum seat by threads, and the main nozzle section and the vacuum seat are reinforced by a lock nut.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: when designing the nozzle mechanism of the ejector, the special working conditions of the plateau environment are fully considered. By optimizing the structural design of the nozzle, the utilization efficiency of compressed air is improved, the pressurization and acceleration effect of the airflow is enhanced, thereby forming a sufficient vacuum in the low-pressure environment of the plateau, improving the aluminum suction efficiency. Through reasonable structural design, the wear of internal parts of the equipment is reduced, the equipment loss is reduced, the service life of the equipment is improved, the anti-pollution ability of the equipment is enhanced, the cleaning and maintenance work is simplified, and the maintenance cost and risk are reduced. Attached Figure Description
[0011] Figure 1 This is an isometric sectional view of the main structure of this utility model;
[0012] Figure 2 This is a front sectional view of the main structure of this utility model;
[0013] Figure 3This is a left-side view of the main structure of this utility model;
[0014] Figure 4 This is an isometric sectional view of the nozzle structure of this utility model;
[0015] Figure 5 This is a front sectional view of the nozzle structure of this utility model.
[0016] In the diagram: 1-vacuum seat, 2-connection seat, 3-air outlet, 4-exhaust housing, 5-silencing housing, 6-silencer, 7-connecting pipe, 8-output pipe, 9-input port, 10-nozzle, 101-main nozzle section, 102-main air intake, 103-secondary nozzle section, 104-pressurization and acceleration air passage, 105-high-speed linear airflow passage, 11-fixed plate, 12-suction opening, 13-locking nut. Detailed Implementation
[0017] 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.
[0018] Please see Figure 1-5 This utility model provides a vacuum lifting ejector structure for high-altitude areas, including a vacuum seat 1 and a nozzle 10. A connecting seat 2 is threadedly connected to one side of the vacuum seat 1. The nozzle 10 is disposed on the other side of the vacuum seat 1, with the output end of the nozzle 10 corresponding to the connecting seat 2. An air outlet 3 is threadedly connected to the outer end of the connecting seat 2. The air outlet 3 has a trumpet-shaped structure. One side of an exhaust housing 4 is clamped and fixed between the connecting seat 2 and the air outlet 3. The air outlet 3 penetrates the other side of the exhaust housing 4. A silencer housing 5 is provided on the outside of the other side of the exhaust housing 4. A silencer 6 is provided on the other side of the exhaust housing 4 and inside the silencer housing 5. A connecting pipe 7 connects the exhaust housing 4 and the silencer 6. An output pipe 8 is provided through the side wall of the exhaust housing 4. An input port 9 is provided at the lower end of the vacuum seat 1.
[0019] The nozzle 10 includes a main nozzle section 101, with a main air intake 102 inside the main nozzle section 101. The output end of the main nozzle section 101 is connected to a secondary nozzle section 103 via a thread. The input end of the secondary nozzle section 103 is provided with a pressurization and acceleration air passage 104. The output end of the secondary nozzle section 103 is connected to the pressurization and acceleration air passage 104 via a high-speed linear airflow channel 105.
[0020] In use, the inlet 9 is connected to the output pipe of the vacuum lifting package being attracted, and the airflow from the external high-pressure air source is input into the vacuum seat 1 through the nozzle 10. The nozzle 10 is designed with the main nozzle section 101 and the auxiliary nozzle section 103 connected by threads. Compressed air enters from the inlet end of the main air inlet duct 102 and flows evenly into the channel after being guided by the guide cone. Due to the smooth inner wall and reasonable diameter of the channel, the compressed air loses little during the flow process and can maintain a high pressure and velocity. Subsequently, the compressed air enters the pressurization and acceleration air duct 104. Due to the tapered design of the flow channel, the air velocity gradually increases and the pressure also rises, causing the compressed air to rotate and increase the collision between air molecules. The air is mixed to further enhance the kinetic and pressure energy of the air, achieving the effect of pressurizing and accelerating the compressed air. After being accelerated by the pressurization and acceleration air passage 104, the high-speed compressed air enters the high-speed straight airflow passage 105. Since the passage has a uniform cross-section and smooth inner wall, the airflow can maintain a stable high-speed straight flow, reducing energy loss. The high-speed airflow is ejected at the passage outlet, forming a powerful jet, which generates a strong negative pressure in the junction seat 2, thereby drawing in the air inside the vacuum seat 1. Then, it is input into the silencer 6 through the air outlet 3. A silencer housing 5 is set on the outside of the silencer 6 to process the noise generated by the compressed airflow. Then, it is input into the exhaust housing 4 through the connecting pipe 7 and output to the outside through the output pipe 8.
[0021] Both the main air intake 102 and the high-speed linear airflow channel 105 are cylindrical channel structures. The inner diameter of the main air intake 102 is larger than the inner diameter of the high-speed linear airflow channel 105. The booster / accelerator air intake 104 is a tapered flow channel structure. The inner diameter of the input end of the booster / accelerator air intake 104 is the same as the inner diameter of the main air intake 102, and the inner diameter of the output end of the booster / accelerator air intake 104 is the same as the inner diameter of the high-speed linear airflow channel 105. The contraction ratio of the booster / accelerator air intake 104 is 2:1-3:1. The length of the booster / accelerator air intake 104 is proportional to the inlet diameter. With a ratio of 1.5:1 to 2:1, compressed air enters from the main intake duct 102 and flows evenly into the booster and acceleration duct 104 after being guided by the guide cone. Under the action of the gradually narrowing flow channel of the booster and acceleration duct 104, the compressed air is boosted and accelerated, forming a high-speed rotating airflow. Then, the high-speed airflow enters the high-speed straight airflow channel 105 and is ejected from the outlet with a stable high-speed straight flow, forming a negative pressure in the vacuum seat 1 and drawing in air from the plateau region. After the drawn-in air mixes with the high-speed jet, it is discharged through the exhaust duct 3, thereby forming a stable vacuum environment inside the ejector to meet the requirements of vacuum lifting and aluminum suction.
[0022] On the other side of the exhaust housing 4, a fixing plate 11 is provided at a position corresponding to the silencer housing 5. The silencer housing 5 is fixedly connected to the fixing plate 11 through a connecting flange. The silencer 6 is fixedly installed on the fixing plate 11 through a connecting flange. The connecting pipe 7 passes through the fixing plate 11. By setting the fixing plate 11, the connection and fixing firmness of the exhaust housing 4, the silencer housing 5 and the silencer 6 are improved.
[0023] The output end of the secondary nozzle section 103 has a conical structure. The connecting seat 2 has an attraction opening 12 at the position corresponding to the secondary nozzle section 103. The attraction opening 12 is arranged corresponding to the conical structure of the secondary nozzle section 103. Air in the vacuum seat 1 enters the interior of the connecting seat 2 through the attraction opening 12 under the attraction of negative pressure.
[0024] The main nozzle section 101 is fixedly connected to the vacuum seat 1 by threads, and the main nozzle section 101 and the vacuum seat 1 are reinforced by a locking nut 13, which improves the connection between the main nozzle section 101 and the vacuum seat 1.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high altitude vacuum ladle ejector configuration, characterized by: Includes a vacuum seat (1) and a nozzle (10). A connecting seat (2) is threaded onto one side of the vacuum seat (1). The nozzle (10) is located on the other side of the vacuum seat (1). The output end of the nozzle (10) is correspondingly positioned to the connecting seat (2). An air outlet (3) is threaded onto the outer end of the connecting seat (2). The air outlet (3) has a trumpet-shaped structure. An exhaust housing (4) is clamped and fixed between the connecting seat (2) and the air outlet (3). On one side of the exhaust duct (3), the exhaust duct (3) passes through the other side of the exhaust housing (4). The other side of the exhaust housing (4) is provided with a silencer housing (5). The other side of the exhaust housing (4) and inside the silencer housing (5) is provided with a silencer (6). A connecting pipe (7) connects the exhaust housing (4) and the silencer (6). An output pipe (8) passes through the side wall of the exhaust housing (4). An input port (9) is provided at the lower end of the vacuum seat (1). The nozzle (10) includes a main nozzle section (101), the main nozzle section (101) has a main air intake (102) inside, the output end of the main nozzle section (101) is connected to a secondary nozzle section (103) by a thread, the input end of the secondary nozzle section (103) is provided with a pressurization and acceleration air passage (104), and the output end of the secondary nozzle section (103) is connected to the pressurization and acceleration air passage (104) by a high-speed linear airflow channel (105).
2. A high altitude vacuum bell boat elevator ejector structure according to claim 1, wherein: Both the main air intake (102) and the high-speed linear airflow channel (105) are cylindrical channel structures. The inner diameter of the main air intake (102) is larger than the inner diameter of the high-speed linear airflow channel (105). The booster and acceleration air intake (104) is a tapered flow channel structure. The inner diameter of the input end of the booster and acceleration air intake (104) is the same as the inner diameter of the main air intake (102). The inner diameter of the output end of the booster and acceleration air intake (104) is the same as the inner diameter of the high-speed linear airflow channel (105). The contraction ratio of the flow channel of the booster and acceleration air intake (104) is 2:1-3:
1. The ratio of the length of the booster and acceleration air intake (104) to the inlet diameter is 1.5:1-2:
1.
3. A high altitude vacuum bell boat elevator ejector configuration according to claim 1, wherein: A fixing plate (11) is provided on the other side of the exhaust housing (4) at a position corresponding to the silencer housing (5). The silencer housing (5) is fixedly connected to the fixing plate (11) through a connecting flange. The silencer (6) is fixedly mounted on the fixing plate (11) through a connecting flange. The connecting pipe (7) passes through the fixing plate (11).
4. A high altitude vacuum bell boat elevator ejector configuration according to claim 1, wherein: The output end of the secondary nozzle section (103) has a conical structure. The connecting seat (2) has a suction opening (12) at the position corresponding to the secondary nozzle section (103). The suction opening (12) is arranged corresponding to the conical structure of the secondary nozzle section (103).
5. A high altitude vacuum bell boat elevator ejector configuration according to claim 1, wherein: The main nozzle section (101) is fixedly connected to the vacuum seat (1) by threads, and the main nozzle section (101) and the vacuum seat (1) are reinforced by a lock nut (13).