Centrifugal extraction device with inert gas seal
By introducing inert gas into the centrifugal extraction device for positive pressure sealing, the problem of volatile gas overflow caused by insufficient sealing in traditional devices is solved, and the operation safety and equipment life are improved.
Patent Information
- Application Number
- CN202411781302.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-03-11
AI Technical Summary
When traditional centrifugal extraction devices deal with highly toxic, highly volatile or highly corrosive substances, due to insufficient sealing of the equipment, they are prone to overflow of volatile gases, which increases the health risks of operators and causes pollution to the surrounding environment.
A centrifugal extraction device with an inert gas seal is designed. By introducing inert gas inside the device, a positive pressure seal is formed, and sealed with an inert gas inlet, sealing chamber and outlet to avoid overflow of volatile gas.
It effectively improves the safety of operators, reduces harm to the air and surrounding environment, avoids volatile gas overflow, and extends the service life of the equipment.
Smart Images
Figure CN119588028A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of separation technology, in particular to a centrifugal extraction device with an inert gas seal. Background Art
[0002] Inert gas sealed centrifugal extraction devices usually introduce inert gas (such as nitrogen or argon) into the device to form a positive pressure seal, which not only effectively prevents external air and moisture from entering the device, but also prevents the leakage of volatile, toxic or highly corrosive substances, ensuring the safety of the operation process and environmental protection. In addition, inert gas seals can isolate oxygen, prevent the oxidation of substances or the occurrence of side reactions, greatly improve process efficiency and product quality, while reducing corrosion and wear of equipment and extending its service life.
[0003] Centrifugal extraction usually uses the centrifugal force generated by high-speed rotation to achieve efficient liquid-liquid separation. It is particularly suitable for mixed liquids with small density differences or difficult phase separation. The application of inert gas seals further improves the safety and stability of centrifugal extraction devices when handling highly toxic, highly sensitive or volatile substances, avoiding the risk of cross contamination or leakage.
[0004] During the operation of the traditional centrifugal extraction device, although it can achieve efficient liquid-liquid separation through high-speed rotation, the problem of volatile gas overflow often occurs due to the insufficient sealing of the equipment. This problem is particularly prominent when dealing with highly toxic, highly volatile or highly corrosive substances, which not only increases the health risks to operators, but also pollutes and damages the surrounding environment. In addition, the infiltration of external air and moisture can also cause oxidation, side reactions or performance degradation of the extracted substances, further reducing the efficiency of the process and the purity of the product. Due to the insufficient sealing of the equipment, corrosive substances can also cause long-term erosion of the internal components of the device, resulting in an increase in the frequency of equipment damage and maintenance costs, affecting its overall economy and reliability. Summary of the invention
[0005] In view of the deficiencies in the prior art, the present invention provides a centrifugal extraction device with an inert gas seal, which solves the problem that the centrifugal extraction device cannot be effectively sealed when separating liquids, thereby increasing the health risks of operators and causing pollution to the surrounding environment.
[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A centrifugal extraction device with an inert gas seal, comprising an upper cover, the top of the upper cover is fixedly connected to a bearing seat, an inert gas inlet and an inert gas outlet are provided on the outer side of the bearing seat, an inert gas sealing chamber is provided in the middle of the bearing seat, which is used to seal the gas, a separation assembly is provided at the bottom of the upper cover, which is used to separate the raw materials, and a driving assembly is provided on the top of the bearing seat, which is used to drive the separation assembly to rotate so as to generate centrifugal force;
[0007] The separation component includes an outer shell, which is fixedly connected to the bottom of the upper cover; a connecting shaft is rotatably connected to the middle of the bearing seat; negative pressure blades and a rotating drum are fixedly connected to the outer periphery of the connecting shaft; a conveying component is provided at the bottom of the rotating drum for driving the liquid to move upward.
[0008] Preferably, the drive assembly includes a protective cover, which is fixedly connected to the top of the bearing seat, the bottom of the protective cover is fixedly connected to a motor, the output end of the motor is fixedly connected to pulley 2, the top of the connecting shaft is fixedly connected to pulley 1, and the outer circumferences of pulley 1 and pulley 2 are both sleeved with synchronous belts.
[0009] Preferably, the conveying assembly comprises an extension tube, the extension tube is fixedly connected to the inside of the rotating drum, and the inside of the extension tube is rotatably connected with a trapezoidal inclined blade.
[0010] Preferably, a labyrinth mixing chamber and guide vanes are fixedly connected to the interior of the housing, which are used to increase the contact time of the mixed liquid.
[0011] Preferably, the top of the upper cover 1 is fixedly connected with an inert gas inlet 2 and an inert gas outlet 2, which are used for gas injection and exhaust, and a sieve plate chamber is provided inside the outer shell for mixing the liquid.
[0012] Preferably, a support column is fixedly connected to the bottom of the upper cover one, which is used to support and fix the upper cover one.
[0013] Preferably, a vertical rib is fixedly connected to the interior of the extension tube and is used to support the extension tube, and a plurality of the vertical ribs are provided.
[0014] Preferably, a heavy phase outlet, a light phase outlet and a feed inlet are fixedly connected to the outer wall of the shell, the heavy phase outlet is used to discharge the heavy raw material, and the light phase outlet is used to discharge the light raw material.
[0015] The present invention provides a centrifugal extraction device with an inert gas seal. It has the following beneficial effects:
[0016] 1. The present invention drives pulley 2 to rotate through a motor. When pulley 2 rotates, it drives pulley 1 to rotate simultaneously through a synchronous belt. When pulley 1 rotates, it drives the connecting shaft to rotate. When the connecting shaft rotates, it drives the rotating drum, the trapezoidal inclined blades and the negative pressure blades to rotate simultaneously. When the rotating drum rotates, the raw materials can be separated conveniently. At the same time, under the action of inert gas inlet 1, inert gas sealing chamber and inert gas outlet 1, it can be conveniently sealed, thereby avoiding the overflow of volatile gases generated when separating the raw materials, thereby improving the safety of operators and reducing the harm to the air and the surrounding environment.
[0017] 2. The present invention injects inert gas into the interior of the shell through the second inert gas inlet. After the inert gas enters the interior of the shell, it will bring the air and the mixture out from the interior of the shell and discharge them through the second inert gas outlet, thereby preventing the air and the mixture from remaining in the interior of the shell, further avoiding the overflow of volatile gases, and improving the safety of operators. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 A perspective view of the present invention;
[0019] Figure 2 Schematic diagram of the motor of the present invention.
[0020] Among them, 1. protective cover; 2. pulley one; 3. pulley two; 4. motor; 5. bearing seat; 6. connecting shaft; 7. inert gas sealing chamber; 8. inert gas inlet one; 9. inert gas outlet one; 10. inert gas outlet two; 11. inert gas inlet two; 12. upper cover one; 13. outer shell; 14. heavy phase outlet; 15. light phase outlet; 16. feed inlet; 17. sieve plate chamber; 18. rotating drum; 19. labyrinth mixing chamber; 20. trapezoidal inclined blades; 21. guide blades; 22. support column; 23. extension pipe; 24. vertical ribs; 25. negative pressure blades. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0022] Please refer to the attached Figure 1 and attached Figure 2The embodiment of the present invention provides a centrifugal extraction device with an inert gas seal, including an upper cover 12, the top of the upper cover 12 is fixedly connected to a bearing seat 5, an inert gas inlet 8 and an inert gas outlet 9 are provided on the outer side of the bearing seat 5, an inert gas sealing chamber 7 is provided in the middle of the bearing seat 5, which is used to seal the gas, a separation component is provided at the bottom of the upper cover 12, which is used to separate the raw materials, and a driving component is provided on the top of the bearing seat 5, which is used to drive the separation component to rotate to generate centrifugal force.
[0023] The upper cover 12 can conveniently support and fix the bearing seat 5, thereby making the bearing seat 5 more stable. The inert gas inlet 8 can conveniently inject the inert gas into the interior of the bearing seat 5, and the inert gas outlet 9 can conveniently discharge the inert gas. At the same time, under the action of the inert gas sealing chamber 7, the inert gas can be conveniently stored, thereby preventing the volatile gas generated when the raw materials are separated from the overflow, thereby improving the safety of the operators and reducing the harm to the air and the surrounding environment.
[0024] Please refer to the attached Figure 1 and attached Figure 2 The separation component includes a shell 13, which is fixedly connected to the bottom of the upper cover 12. The middle part of the bearing seat 5 is rotatably connected to the connecting shaft 6. The outer periphery of the connecting shaft 6 is fixedly connected to the negative pressure blade 25 and the rotating drum 18. A conveying component is provided at the bottom of the rotating drum 18, which is used to drive the liquid to move upward.
[0025] The upper cover 12 can be conveniently connected and fixed to the outer shell 13, and the bearing seat 5 can conveniently support the connecting shaft 6, so as to facilitate the rotation of the connecting shaft 6. When the connecting shaft 6 rotates, it will drive the rotating drum 18 and the negative pressure blades 25 to rotate at the same time, thereby generating centrifugal force, causing the heavy liquid to diffuse toward the outer wall of the rotating drum 18, thereby facilitating the separation of the light liquid and the heavy liquid.
[0026] Please refer to the attached Figure 1 and attached Figure 2 The driving assembly includes a protective cover 1, which is fixedly connected to the top of the bearing seat 5, and the bottom of the protective cover 1 is fixedly connected to a motor 4, the output end of the motor 4 is fixedly connected to a pulley 2 3, and the top of the connecting shaft 6 is fixedly connected to a pulley 1 2, and the outer peripheries of the pulleys 1 2 and 2 3 are both sleeved with synchronous belts.
[0027] The protective cover 1 can prevent a large amount of dust from falling onto the pulley 1 2 and the pulley 2 3, thereby facilitating the rotation of the pulley 1 2 and the pulley 2 3. At the same time, the protective cover 1 can conveniently support and fix the motor 4, thereby making the motor 4 more stable when working, and can conveniently drive the connecting shaft 6 to rotate when the motor 4 is working.
[0028] Please refer to the attached Figure 1 and attached Figure 2 The conveying assembly includes an extension tube 23, which is fixedly connected to the inside of the drum 18. The extension tube 23 is rotatably connected to a trapezoidal inclined blade 20. The inside of the outer shell 13 is fixedly connected to a labyrinth mixing chamber 19 and a guide blade 21, which are used to increase the contact time of the mixed liquid. The top of the upper cover 12 is fixedly connected to an inert gas inlet 11 and an inert gas outlet 10, which are used for gas injection and exhaust. The inside of the outer shell 13 is provided with a sieve plate chamber 17, which is used to mix the liquid.
[0029] The extension tube 23, the labyrinth mixing chamber 19 and the guide blades 21 can conveniently enter the liquid inside the shell 13 for mixing, and at the same time, the liquid can be conveniently transported upward under the action of the trapezoidal inclined blades 20. The inert gas such as nitrogen or argon can be conveniently injected into the interior of the shell 13 through the action of the inert gas inlet 11. The inert gas injected into the shell 13 will discharge the internal air and mixture from the inert gas outlet 10, thereby avoiding the overflow of volatile gases, thereby improving the safety of the operator.
[0030] Please refer to the attached Figure 1 and attached Figure 2 A support column 22 is fixedly connected to the bottom of the upper cover 12, which is used to support and fix the upper cover 12. A vertical rib 24 is fixedly connected to the inside of the extension tube 23, which is used to support the extension tube 23. There are multiple vertical ribs 24. The outer wall of the shell 13 is fixedly connected to a heavy phase outlet 14, a light phase outlet 15 and a feed port 16. The heavy phase outlet 14 is used to discharge heavy raw materials, and the light phase outlet 15 is used to discharge light raw materials.
[0031] The support column 22 can conveniently support and fix the upper cover 12, thereby making the upper cover 12 more firm. The multiple vertical ribs 24 can conveniently support the extension tube 23, thereby making the extension tube 23 more stable. When the heavy liquid diffuses toward the outer wall of the drum 18 and is then discharged through the light phase outlet 15, the light liquid will rotate on the outer wall of the connecting shaft 6 and move upward, thereby being discharged through the heavy phase outlet 14, so that the light liquid and the heavy liquid are separated, thereby reducing the labor intensity of the operator and improving work efficiency.
[0032] Working principle: When the liquid is separated, the motor 4 is started. When the motor 4 is working, it will drive the pulley 2 3 to rotate. When the pulley 2 3 rotates, it will drive the pulley 1 2 to rotate at the same time through the synchronous belt. When the pulley 1 2 rotates, it will drive the connecting shaft 6 to rotate. When the connecting shaft 6 rotates, it will drive the drum 18 and the negative pressure blades 25 to rotate at the same time, thereby generating centrifugal force, causing the heavy liquid to diffuse toward the outer wall of the drum 18, and then be discharged through the light phase outlet 15, while the light liquid will rotate on the outer wall of the connecting shaft 6 and move upward, so that it will be discharged through the heavy phase outlet 14, so that the light liquid and the heavy liquid are separated.
[0033] The raw materials are added to the interior of the outer shell 13 through the feed port 16. When the raw materials enter the interior of the outer shell 13, they are filtered through the sieve chamber 17 and then flow into the bottom of the outer shell 13 for mixing. After mixing, the raw materials are output upward through the trapezoidal inclined blades 20 and then flow into the interior of the drum 18 for separation.
[0034] When the gas generated and retained inside the shell 13 is discharged, an inert gas such as nitrogen or argon is injected into the shell 13 through the inert gas inlet 11, and the inert gas injected into the shell 13 will discharge the internal air and mixture from the inert gas outlet 10, thereby avoiding the overflow of volatile gas.
[0035] Secondly, the inert gas is injected into the inert gas sealed chamber 7 through the inert gas inlet 8, so that the inert gas remains in the inert gas sealed chamber 7, thereby forming a seal, and can be discharged through the inert gas outlet 9 when exhausting.
[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A centrifugal extraction device with an inert gas seal, comprising an upper cover (12), characterized in that: The top of the upper cover (12) is fixedly connected to a bearing seat (5); an inert gas inlet (8) and an inert gas outlet (9) are provided on the outer side of the bearing seat (5); an inert gas sealing chamber (7) is provided in the middle of the bearing seat (5) for sealing the gas; a separation assembly is provided at the bottom of the upper cover (12) for separating the raw materials; a driving assembly is provided at the top of the bearing seat (5) for driving the separation assembly to rotate so as to generate centrifugal force; The separation assembly comprises an outer shell (13), wherein the outer shell (13) is fixedly connected to the bottom of the upper cover (12), the middle part of the bearing seat (5) is rotatably connected to a connecting shaft (6), the outer periphery of the connecting shaft (6) is fixedly connected to negative pressure blades (25) and a rotating drum (18), and a conveying assembly is provided at the bottom of the rotating drum (18) for driving the liquid to move upward.
2. A centrifugal extraction device with an inert gas seal according to claim 1, characterized in that: The driving assembly comprises a protective cover (1), wherein the protective cover (1) is fixedly connected to the top of the bearing seat (5), the bottom of the protective cover (1) is fixedly connected to a motor (4), the output end of the motor (4) is fixedly connected to a second pulley (3), the top of the connecting shaft (6) is fixedly connected to a first pulley (2), and the outer circumferences of the first pulley (2) and the second pulley (3) are both sleeved with synchronous belts.
3. A centrifugal extraction device with an inert gas seal according to claim 1, characterized in that: The conveying assembly comprises an extension tube (23), wherein the extension tube (23) is fixedly connected to the inside of the rotating drum (18), and a trapezoidal inclined blade (20) is rotatably connected to the inside of the extension tube (23).
4. A centrifugal extraction device with an inert gas seal according to claim 1, characterized in that: A labyrinth mixing chamber (19) and a guide vane (21) are fixedly connected to the interior of the housing (13) and are used to increase the contact time of the mixed liquid.
5. A centrifugal extraction device with an inert gas seal according to claim 1, characterized in that: The top of the upper cover (12) is fixedly connected with an inert gas inlet (11) and an inert gas outlet (10) for gas injection and exhaust. The shell (13) is provided with a sieve plate chamber (17) for mixing liquid.
6. A centrifugal extraction device with an inert gas seal according to claim 1, characterized in that: The bottom of the upper cover (12) is fixedly connected with a support column (22) for supporting and fixing the upper cover (12).
7. A centrifugal extraction device with an inert gas seal according to claim 3, characterized in that: A vertical rib (24) is fixedly connected to the interior of the extension tube (23) and is used to support the extension tube (23). A plurality of the vertical ribs (24) are provided.
8. A centrifugal extraction device with an inert gas seal according to claim 1, characterized in that: The outer wall of the shell (13) is fixedly connected with a heavy phase outlet (14), a light phase outlet (15) and a feed port (16), wherein the heavy phase outlet (14) is used to discharge heavy raw materials, and the light phase outlet (15) is used to discharge light raw materials.