Continuous multi-stage defoaming equipment

Abstract

The utility model discloses continuous multi-stage defoaming equipment which comprises a defoaming tank, a rotating shaft, a rotating disc and a fixed disc, a feeding hole is formed in the first surface of the defoaming tank, a discharging hole is formed in the second surface of the defoaming tank, and a pressure regulating hole communicated with a vacuum source is formed in the defoaming tank; one end of the rotating shaft penetrates through the first surface and is positioned in the defoaming tank and close to the discharge hole; the rotating disc is located in the defoaming tank and sleeves the rotating shaft, the upper surface of the rotating disc is used for bearing a liquid material and driving the liquid material to synchronously rotate along with the rotating shaft, and the liquid material is thrown to the inner surface of the defoaming tank from the center of the rotating disc to the outer periphery of the rotating disc under the action of centrifugal force; the fixed disc is embedded in the defoaming tank, the outer periphery of the fixed disc is connected with the inner surface of the defoaming tank, the upper surface of the fixed disc bears a liquid material, and the liquid material flows out from the outer periphery of the fixed disc to a through hole in the center of the fixed disc under the action of gravity; the rotating discs and the fixed discs are staggered along the height direction of the defoaming tank.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum defoaming, in particular to a continuous multi-stage defoaming device, which is particularly suitable for defoaming high-viscosity polymer liquid slurry containing surfactant. Background Art

[0002] In the fields of flat panel display preparation, semiconductor packaging and lithium-ion battery preparation, it is generally necessary to use slit coating to coat high-viscosity polymer raw materials on the substrate to prepare the required film. However, the incoming polymer liquid raw materials often have macroscopic and microscopic bubbles. After the bubbles are coated on the substrate with the liquid raw materials to form a thin film, the thin film will be destroyed due to surface tension or rupture during drying, thereby affecting the film quality.

[0003] Especially in high-end fields such as semiconductor packaging, the requirements for microscopic bubbles in polymer liquid raw materials are relatively stringent, so degassing of polymer liquid raw materials is necessary in the above fields.

[0004] The existing degassing system is generally of intermittent reactor type, which uses a stirring paddle in a sealed stainless steel tank to turn the polymer liquid raw material on the lower layer to the surface for contact with the vacuum, thereby eliminating the bubbles inside the liquid material. However, the working area of ​​the intermittent reactor degassing system only allows the upper surface of the polymer liquid raw material to contact the vacuum. Generally, the degassing time takes 5-24 hours, which makes the degassing efficiency low and the cost high, and the film quality of the product cannot be guaranteed.

[0005] The utility model is used to solve at least one of the above problems. Utility Model Content

[0006] The utility model aims to solve the problems that the existing degassing system has low degassing efficiency, high cost and cannot guarantee the film-forming quality of the product, and provides a continuous multi-stage degassing equipment, which can fully precipitate the gas and bubbles in the liquid material through multiple degassing of the undegassed liquid material in each stage of the degassing process, thereby improving the degassing efficiency and the qualified rate of the product; through the multi-stage degassing of the liquid material, the gas and bubbles in the liquid material are continuously degassed for multiple times, and finally a degassed liquid material is obtained, thereby further improving the degassing efficiency and the qualified rate of the product.

[0007] The purpose of the utility model is achieved by the following technical solutions:

[0008] A continuous multi-stage degassing device, comprising:

[0009] The degassing tank has a first surface and a second surface opposite to each other in the height direction, wherein the first surface of the degassing tank is provided with a feed inlet for the inflow of undegassed liquid material, the second surface of the degassing tank is provided with a discharge port for the outflow of degassed liquid material, and the degassing tank is also provided with a pressure regulating port, which is connected to a vacuum source;

[0010] A degassing component, the degassing component comprising:

[0011] A rotating shaft, one end of which passes through the first surface of the degassing tank and is located in the degassing tank and close to the discharge port;

[0012] At least one rotating disc is located in the degassing tank and sleeved on the rotating shaft, the upper surface of the rotating disc is used to carry the liquid material and drive the liquid material to rotate synchronously with the rotating shaft, and the liquid material can be thrown from the center of the rotating disc to the outer periphery of the rotating disc to the inner surface of the degassing tank under the action of centrifugal force;

[0013] At least one fixed disc is fixed in the degassing tank, the outer periphery of the fixed disc is connected to the inner surface of the degassing tank, the upper surface of the fixed disc is used to carry the liquid material, and the liquid material can flow out along the outer periphery of the fixed disc toward the through hole at the center thereof under the action of gravity;

[0014] A plurality of the rotating discs and a plurality of the fixed discs are staggeredly distributed along the height direction of the degassing tank.

[0015] Compared with the prior art, the beneficial effects of the utility model are: by degassing the un-degassed liquid material multiple times in each stage of the degassing process, the gas and bubbles in the liquid material are fully separated out, thereby improving the degassing efficiency and the product qualification rate; by multi-stage degassing of the liquid material, the gas and bubbles in the liquid material are continuously degassed multiple times, and finally a degassed liquid material is obtained, further improving the degassing efficiency and the product qualification rate.

[0016] In some possible implementations, the following are included:

[0017] A first buffer tank, used for buffering the undefoamed liquid material, one end of the first buffer tank being connectable to the feed port;

[0018] The second buffer tank is used to buffer the degassed liquid material. One end of the second buffer tank can be connected to the discharge port. The second buffer tank is connected to the vacuum source.

[0019] In some possible implementations, in the direction from the center of the rotating disk to the outer periphery thereof, the upper surface of the rotating disk gradually tilts upward, and the upper surface of the rotating disk is a curved surface, a conical surface, or a spherical surface.

[0020] In some possible implementations, the upper surface of the fixed disk gradually slopes downward from the outer periphery of the fixed disk toward the center thereof, and the upper surface of the fixed disk is a curved surface, a conical surface, or a spherical surface.

[0021] In some possible implementations, a first pipeline is further included, a first valve is disposed on the first pipeline, the first valve can connect or disconnect the pressure regulating port and the vacuum source, the first pipeline has a first end and a second end opposite to each other, the first end of the first pipeline is connected to the pressure regulating port, and the first end of the first pipeline is connected to the vacuum source.

[0022] In some possible embodiments, a second pipeline is further included, and a second valve is provided on the second pipeline, and the second valve can connect or disconnect the first cache tank and the feed port, and the second pipeline has a first end and a second end relative to each other, and the first end of the second pipeline is connected to the feed port, and the second end of the second pipeline is connected to the first cache tank.

[0023] In some possible embodiments, a third pipeline is further included, and a third valve is provided on the third pipeline. The third valve can connect or disconnect the second cache tank and the discharge port. The third pipeline has a first end and a second end relative to each other. The first end of the third pipeline is connected to the discharge port, and the second end of the third pipeline is connected to the second cache tank.

[0024] In some possible embodiments, a fourth pipeline is further included, and a fourth valve is provided on the fourth pipeline. The fourth valve can connect or disconnect the second cache tank and the vacuum source. The fourth pipeline has a first end and a second end relative to each other. The first end of the fourth pipeline is connected to the second cache tank, and the second end of the fourth pipeline is connected to the vacuum source.

[0025] In some possible embodiments, a fifth pipeline and a sixth pipeline are further included, the fifth pipeline having a first end and a second end opposite to each other, the first end of the fifth pipeline being connected to the second cache tank, the second end of the fifth pipeline being connected to a nitrogen source, and a fifth valve being provided on the fifth pipeline, the fifth valve being used to connect or disconnect the second cache tank from the nitrogen source; the sixth pipeline having a first end and a second end opposite to each other; the first end of the sixth pipeline being connected to the second cache tank, the second end of the sixth pipeline being connected to a first storage end, and a sixth valve being provided on the sixth pipeline, the sixth valve being used to connect or disconnect the second cache tank from the first storage end.

[0026] In some possible embodiments, a seventh pipeline is further included, wherein the seventh pipeline has a first end and a second end opposite to each other, the first end of the seventh pipeline is connected to the first cache tank, the second end of the seventh pipeline is connected to the second storage end, and a seventh valve is provided on the seventh pipeline, and the seventh valve is used to connect or disconnect the first cache tank and the second storage end.

[0027] In some possible implementations, the other end of the rotating shaft is connected to a driving device, and the driving device is used to drive the rotating shaft to rotate.

[0028] In some possible implementations, the rotating disk includes:

[0029] A first conical disk having a first opening and a second opening along a height direction, wherein the first opening of the first conical disk is sleeved on the rotating shaft;

[0030] A second conical disk having a third opening and a fourth opening along a height direction, wherein the fourth opening of the second conical disk is engaged with the second opening of the first conical disk;

[0031] Here, the radius R3 of the third port>the radius R4 of the fourth port=the radius R2 of the second port>the radius R1 of the first port.

[0032] In some possible implementations, an upper surface of the first conical disk and the rotation axis form an angle a between 0-90°; an upper surface of the second conical disk and the rotation axis form an angle b between 90-135°.

[0033] In some possible implementations, the fixed disk includes:

[0034] A first cylindrical disk having a fifth opening and a sixth opening in a height direction, wherein an outer surface of the first cylindrical disk is connected to an upper surface of the degassing tank, and the fifth opening of the first cylindrical disk is used for the liquid material to flow in;

[0035] A third conical disk has a seventh opening and an eighth opening along the height direction, the seventh opening of the third conical disk is engaged with the sixth opening of the first cylindrical disk, and the eighth opening of the third conical disk is used for the liquid material to flow out;

[0036] Here, the radius R5 of the fifth port = the radius R6 of the sixth port = the radius R7 of the seventh port > the radius R8 of the eighth port.

[0037] In some possible implementations, an upper surface of the third conical disk and the rotation axis form an angle c, and the angle c is between 90-180°. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic diagram of the overall structure of the continuous multi-stage degassing equipment of the utility model embodiment;

[0039] Figure 2 It is a schematic diagram of a partial cross-sectional structure of a degassing component of an embodiment of the utility model;

[0040] Figure 3 This is a schematic diagram of the structure of the rotating disc of the utility model embodiment;

[0041] Figure 4 This is a schematic diagram of the structure of the fixed disc in the embodiment of the utility model;

[0042] Figure 5 It is a structural schematic diagram of the angle designs of the first conical disk, the second conical disk and the third conical disk and the rotation axis in the embodiment of the utility model.

[0043] In the figure: 1, degassing tank; 2, vacuum source; 3, rotating shaft; 4, rotating disc; 5, fixed disc; 6, first buffer tank; 7, second buffer tank; 8, first pipeline; 9, first valve; 10, second pipeline; 11, second valve; 12, third pipeline; 13, third valve; 14, fourth pipeline; 15, fourth valve; 16, fifth pipeline; 17, fifth valve; 18, sixth pipeline; 19, sixth valve; 20, seventh pipeline; 21, seventh valve; 22, nitrogen source; 23, driving device; 41, first conical disc; 42, second conical disc; 51, first cylindrical disc; 52, third conical disc. DETAILED DESCRIPTION

[0044] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete and to fully convey the concepts of example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0045] The words expressing positions and directions described in the present utility model are all explained by taking the drawings as examples, but they can be changed as needed, and all the changes are included in the protection scope of the present utility model.

[0046] The words expressing positions and directions described in the present utility model are all explained by taking the drawings as examples, but they can be changed as needed, and all the changes are included in the protection scope of the present utility model.

[0047] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0048] See attached Figure 1-3 As shown, this embodiment provides a continuous multi-stage degassing device, including a degassing tank 1 and a degassing component.

[0049] The degassing tank 1 has a first surface and a second surface opposite to each other in the height direction. The first surface can be the top of the degassing tank 1, and the second surface can be the bottom of the degassing tank 1. The first surface of the degassing tank 1 is provided with a feed inlet for the inflow of undegassed liquid material, and the second surface of the degassing tank 1 is provided with a discharge port for the outflow of degassed liquid material. The first surface of the degassing tank 1 is also provided with a pressure regulating port, which is connected to the vacuum source 2.

[0050] The degassing assembly includes a rotating shaft 3, at least one rotating disc 4 and at least one fixed disc 5. Specifically, the number of the rotating discs 4 can be equal to the number of the fixed discs 5, or one more or one less than the number of the fixed discs 5. For example: the number of the rotating discs 4 can be 3, and the number of the fixed discs 5 can also be 3; the number of the rotating discs 4 can be 3, and the number of the fixed discs 5 can also be 4. In this embodiment, the number of the rotating discs 4 is preferably 4, and the number of the fixed discs 5 is preferably 3.

[0051] One end of the rotating shaft 3 passes through the first surface of the degassing tank 1 and is located inside the degassing tank 1 and close to the discharge port. The other end of the rotating shaft 3 is connected to the driving device 23, which is used to drive the rotating shaft 3 to rotate. In this embodiment, the rotating shaft 3 is preferably a servo motor.

[0052] The rotating disc 4 is located in the degassing tank 1 and is sleeved on the rotating shaft 3. The upper surface of the rotating disc 4 is used to carry the liquid material and drive the liquid material to rotate synchronously with the rotating shaft 3. Under the action of centrifugal force, the liquid material can be thrown from the center of the rotating disc 4 to the direction of its outer periphery to the inner surface of the degassing tank 1.

[0053] The fixed disc 5 is fixed in the degassing tank 1, the outer periphery of the fixed disc 5 is connected to the inner surface of the degassing tank 1, and the upper surface of the fixed disc 5 is used to carry the liquid material. Under the action of gravity, the liquid material can flow out along the outer periphery of the fixed disc 5 toward the through hole at its center.

[0054] The four rotating discs 4 and the three fixed discs 5 are staggeredly distributed along the height direction of the degassing tank 1. Specifically, in this embodiment, along the height direction of the degassing tank 1, the uppermost layer and the lowermost layer are preferably the rotating discs 4, which is to ensure that when the liquid material is initially degassed at the uppermost layer and finally degassed at the lowermost layer, a larger liquid film can be formed under the rotating centrifugal force of the rotating discs 4, thereby increasing the contact area between the liquid film and the vacuum, fully analyzing the gas or bubbles in the liquid film under the action of the vacuum, and improving the degassing efficiency.

[0055] To facilitate subsequent description and understanding, along the height direction of the degassing tank 1, from top to bottom, the four rotating discs 4 and the three fixed discs 5 are numbered respectively as the first rotating disc 4, the first fixed disc 5, the second rotating disc 4, the second fixed disc 5, the third rotating disc 4, the third fixed disc 5 and the fourth rotating disc 4.

[0056] By opening the pressure regulating port, the vacuum source 2 draws a vacuum to put the degassing tank 1 in a negative pressure state, and when the vacuum pressure in the degassing tank 1 reaches a preset value, the undegassing liquid material enters the degassing tank 1 from the feed port. Specifically, when the liquid material falls from the feed port onto the upper surface of the first rotating disk 4, since the first rotating disk 4 rotates at a constant speed following the rotating shaft 3, the liquid material on the first rotating disk 4 is subjected to the centrifugal force of the rotation of the first rotating disk 4, and gradually diffuses toward the outer periphery of the first rotating disk 4, so that the liquid material forms a flat first liquid film, increases the contact area with the vacuum, and then slowly precipitates the gas and bubbles dissolved in the first liquid film.

[0057] Due to the limited area of ​​the first rotating disk 4, the first liquid film does not stay on the first rotating disk 4 for a long time, and the gas or bubbles dissolved in the first liquid film cannot be completely released, and further degassing is required; when the first liquid film on the first rotating disk 4 moves to the outer periphery of the first rotating disk 4, it is thrown out of the first rotating disk 4 due to inertia and thrown toward the inner wall of the degassing tank 1. The first liquid film flows downward due to gravity, and a second liquid film will be formed on the inner surface of the degassing tank 1, thereby further increasing the contact area with the vacuum and precipitating the gas and bubbles dissolved in the second liquid film; when the second liquid film falls onto the first fixed disk 5 under the action of gravity, the second liquid film forms a third liquid film on the upper surface of the first fixed disk 5, once again increasing the contact area with the vacuum and precipitating the gas and bubbles dissolved in the third liquid film, thereby realizing a primary degassing process from the first rotating disk 4 to the first fixed disk 5.

[0058] The degassing process continues, and the third liquid film flows out along the outer periphery of the fixed disk 5 toward the through hole at its center, and falls onto the upper surface of the second rotating disk 4. Since the second rotating disk 4 rotates at a constant speed following the rotating shaft 3, the third liquid film is subjected to the centrifugal force of the second rotating disk 4 on the second rotating disk 4, and gradually diffuses toward the outer periphery of the second rotating disk 4, so that the third liquid film forms a flat fourth liquid film, increasing the contact area with the vacuum, and then slowly precipitating the gas and bubbles dissolved in the fourth liquid film.

[0059] Due to the limited area of ​​the second rotating disk 4, the fourth liquid film does not stay on the second rotating disk 4 for a long time, and the gas or bubbles dissolved in the fourth liquid film cannot be completely released, and further degassing is required; when the fourth liquid film on the second rotating disk 4 moves to the outer periphery of the second rotating disk 4, it is thrown out of the second rotating disk 4 due to inertia and thrown toward the inner wall of the degassing tank 1. The fourth liquid film flows downward due to gravity, and will form a fifth liquid film on the inner surface of the degassing tank 1, thereby further increasing the contact area with the vacuum and precipitating the gas and bubbles dissolved in the fifth liquid film; when the fifth liquid film falls onto the second fixed disk 5 under the action of gravity, the fifth liquid film forms a sixth liquid film on the upper surface of the second fixed disk 5, once again increasing the contact area with the vacuum and precipitating the gas and bubbles dissolved in the sixth liquid film, thereby realizing a secondary degassing process coordinated from the second rotating disk 4 to the second fixed disk 5.

[0060] By analogy, the degassing continues to realize the three-stage degassing process coordinated by the third rotating disk 4 to the third fixed disk 5. When the liquid film on the fourth rotating disk 4 moves to the outer periphery of the fourth rotating disk 4, the fourth rotating disk 4 is thrown out due to inertia, and is thrown toward the inner wall of the degassing tank 1. The liquid film flows downward due to gravity, and a new liquid film will be formed on the inner surface of the degassing tank 1, thereby further increasing the contact area with the vacuum, precipitating the gas and bubbles dissolved in the new liquid film, and the new liquid film flows out from the discharge port, and finally the degassing liquid material is obtained, completing the whole degassing process.

[0061] It should be noted that the number of the rotating disks 4 and the fixed disks 5 is related to the difficulty of degassing the polymer liquid material. Generally, the number of the rotating disks 4 and the fixed disks 5 increases with the increase of viscosity.

[0062] By degassing the undegassed liquid material multiple times in each stage of the degassing process, the gas and bubbles in the liquid material are fully analyzed, thereby improving the degassing efficiency and the qualified rate of the product; by degassing the liquid material in multiple stages, the gas and bubbles in the liquid material are continuously degassed multiple times, and finally a degassed liquid material is obtained, thereby further improving the degassing efficiency and the qualified rate of the product.

[0063] Reference Figure 2, in the direction from the center of the rotating disk 4 to its outer periphery, the upper surface of the rotating disk 4 gradually tilts upward, and the upper surface of the rotating disk 4 can be a curved surface, a conical surface or a spherical surface. In the present embodiment, the upper surface of the rotating disk 4 is preferably a conical surface. In the direction from the outer periphery of the fixed disk 5 to its center, the upper surface of the fixed disk 5 gradually tilts downward, and the upper surface of the fixed disk 5 can be a curved surface, a conical surface or a spherical surface. In the present embodiment, the upper surface of the fixed disk 5 is preferably a conical surface.

[0064] Reference Figure 3 and Figure 4 The rotating disc 4 includes a first conical disc 41 and a second conical disc 42 , and the fixed disc 5 includes a first cylindrical disc 51 and a third conical disc 52 .

[0065] The first conical disk 41 has a first opening and a second opening along the height direction. The first opening of the first conical disk 41 is sleeved on the rotating shaft 3, so that the first conical disk 41 is fixed on the rotating shaft 3. The second conical disk 42 has a third opening and a fourth opening along the height direction. The fourth opening of the second conical disk 42 is connected to the second opening of the first conical disk 41. Among them, the radius R3 of the third opening> the radius R4 of the fourth opening=the radius R2 of the second opening>the radius R1 of the first opening. Compared with the rotating disk 4 that does not use the first conical disk 41 and only uses the second conical disk 42, after the rotating disk 4 uses the first conical disk 41, the liquid material can flow to the junction of the first conical disk 41 and the second conical disk 42, which has a large centrifugal force, so that the liquid material can be thrown out in time to prevent the liquid material from gathering.

[0066] It should be further explained that, referring to Figure 5 The upper surface of the first conical disk 41 and the rotating shaft 3 form an angle a, which is between 0-90°; the upper surface of the second conical disk 42 and the rotating shaft 3 form an angle b, which is between 90-135°. The angles a and b within this range can ensure a good degassing effect on the liquid material, further improving the degassing efficiency and product qualification rate.

[0067] The first cylindrical disk 51 has a fifth opening (upper opening) and a sixth opening (lower opening) along the height direction. The outer surface of the first cylindrical disk 51 is connected to the inner surface of the degassing tank 1. The fifth opening of the first cylindrical disk 51 is used for the inflow of liquid material. The third conical disk 52 has a seventh opening (upper opening) and an eighth opening (lower opening) along the height direction. The seventh opening of the third conical disk 52 is connected to the sixth opening of the first cylindrical disk 51. The eighth opening of the third conical disk 52 is used for the outflow of liquid material. Among them, the radius R5 of the fifth opening = the radius R6 of the sixth opening = the radius R7 of the seventh opening > the radius R8 of the eighth opening.

[0068] The upper surface of the third conical disk 52 forms an angle c with the rotating shaft 3, and the angle c is between 90-180°. The angle c within this range can ensure a good degassing effect on the liquid material, further improving the degassing efficiency and product qualification rate.

[0069] In some specific embodiments, the continuous multi-stage degassing equipment further includes a first buffer tank 6 and a second buffer tank 7 .

[0070] The first buffer tank 6 is used to buffer the undefoamed liquid material, and one end of the first buffer tank 6 is connected to the feed port.

[0071] The second buffer tank 7 is used for buffering the defoamed liquid material. One end of the second buffer tank 7 is connected to the discharge port, and the second buffer tank 7 is connected to the vacuum source 2.

[0072] The first buffer tank 6 and the second buffer tank 7 are used to buffer the pressure fluctuation in the entire degassing equipment system, so that the material conveying process and the degassing process of the degassing equipment are more stable, and continuous multi-stage degassing of the liquid material is achieved.

[0073] In some specific embodiments, the continuous multi-stage degassing equipment further includes a first pipeline 8 , a second pipeline 10 , a third pipeline 12 , a fourth pipeline 14 , a fifth pipeline 16 , a sixth pipeline 18 and a seventh pipeline 20 .

[0074] A first valve 9 is provided on the first pipeline 8. The first valve 9 can connect or disconnect the pressure regulating port and the vacuum source 2. The first pipeline 8 has a first end and a second end opposite to each other. The first end of the first pipeline 8 is connected to the pressure regulating port, and the first end of the first pipeline 8 is connected to the vacuum source 2.

[0075] The second pipeline 10 is provided with a second valve 11, and the second valve 11 can connect or disconnect the first buffer tank 6 and the feed port. The second pipeline 10 has a first end and a second end relative to each other. The first end of the second pipeline 10 is connected to the feed port, and the second end of the second pipeline 10 is connected to the first buffer tank 6.

[0076] The third pipeline 12 is provided with a third valve 13, and the third valve 13 can connect or disconnect the second buffer tank 7 and the discharge port. The third pipeline 12 has a first end and a second end relative to each other. The first end of the third pipeline 12 is connected to the discharge port, and the second end of the third pipeline 12 is connected to the second buffer tank 7.

[0077] A fourth valve 15 is provided on the fourth pipeline 14, and the fourth valve 15 can connect or disconnect the second buffer tank 7 and the vacuum source 2. The fourth pipeline 14 has a first end and a second end relative to each other. The first end of the fourth pipeline 14 is connected to the second buffer tank 7, and the second end of the fourth pipeline 14 is connected to the vacuum source 2.

[0078] The fifth pipeline 16 has a first end and a second end relative to each other, the first end of the fifth pipeline 16 is connected to the second cache tank 7, the second end of the fifth pipeline 16 is connected to the nitrogen source 22, and a fifth valve 17 is provided on the fifth pipeline 16, and the fifth valve 17 is used to connect or disconnect the second cache tank 7 and the nitrogen source 22; the sixth pipeline 18 has a first end and a second end relative to each other; the first end of the sixth pipeline 18 is connected to the second cache tank 7, the second end of the sixth pipeline 18 is connected to the first storage end, and a sixth valve 19 is provided on the sixth pipeline 18, and the sixth valve 19 is used to connect or disconnect the second cache tank 7 and the first storage end.

[0079] The seventh pipeline 20 has a first end and a second end relative to each other. The first end of the seventh pipeline 20 is connected to the first cache tank 6, and the second end of the seventh pipeline 20 is connected to the second storage end. A seventh valve 21 is provided on the seventh pipeline 20, and the seventh valve 21 is used to connect or disconnect the first cache tank 6 and the second storage end.

[0080] In summary, the working process of the continuous multi-stage degassing equipment of the present application is as follows:

[0081] The equipment is started, and the driving device 23 drives the rotating shaft 3 to rotate, and the rotating shaft 3 drives the rotating disc 4 to rotate synchronously. At the same time, the first valve 9 is opened to connect the first pipeline 8, and the degassing tank 1 is in a negative pressure state through the vacuum source 2. When the vacuum pressure value in the degassing tank 1 reaches the preset value, the second valve 11 is in a closed state, and the seventh valve 21 is opened to connect the seventh pipeline 20, so that the undegassing liquid material in the second storage end (factory end) enters the first buffer tank 6. When the liquid level of the liquid material in the first buffer tank 6 is at the preset liquid level, which can be above 80%, the seventh valve 21 is closed to cut off the seventh pipeline 20.

[0082] Then open the second valve 11 to make the second pipeline 10 conductive, and by adjusting the opening of the second valve 11, the liquid material in the first buffer tank 6 slowly enters the upper surface of the rotating disk 4 in the degassing tank 1, and then undergoes the above-mentioned multi-stage degassing, and the bubbles and gas in the liquid material are precipitated by vacuum to obtain the degassed liquid material accumulated at the bottom of the degassing tank 1.

[0083] The third valve 13, the fifth valve 17 and the sixth valve 19 are in a closed state, so that the third pipeline 12, the fifth pipeline 16 and the sixth pipeline 18 are cut off; the fourth valve 15 is opened to connect the fourth pipeline 14, and the second buffer tank 7 is in a negative pressure state through the vacuum source 2. When the vacuum pressure value in the second buffer tank 7 is the same as the vacuum pressure value in the degassing tank 1, the third valve 13 is opened to connect the third pipeline 12, so that the liquid material accumulated at the bottom of the degassing tank 1 flows into the second buffer tank 7, and when the second When the liquid level of the liquid material in the buffer tank 7 is at a preset level, which may be above 80%, the third valve 13 is closed to cut off the third pipeline 12, and at the same time, the fourth valve 15 is closed to cut off the fourth pipeline 14; then the fifth valve 17 is opened to connect the fifth pipeline 16, and the second buffer tank 7 is placed in a positive pressure state through the nitrogen source 22, and then the sixth valve 19 is opened to connect the sixth pipeline 18, and the degassed liquid material in the second buffer tank 7 is pressed into the first storage end (factory end).

[0084] Although the embodiments of the utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the utility model. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the utility model without departing from the principles and purpose of the utility model. All of these changes should fall within the scope of protection of the claims of the utility model.

Claims

1. A continuous multi-stage degassing device, characterized in that: include: A degassing tank (1) having a first surface and a second surface opposite to each other in a height direction, wherein the first surface of the degassing tank (1) is provided with a feed inlet for an undegassed liquid material to flow in, and the second surface of the degassing tank (1) is provided with a discharge port for a degassed liquid material to flow out, and the degassing tank (1) is also provided with a pressure regulating port, which is connected to a vacuum source (2); A degassing component, the degassing component comprising: A rotating shaft (3), one end of which passes through the first surface of the degassing tank (1) and is located inside the degassing tank (1) and close to the discharge port; At least one rotating disc (4) is located in the degassing tank (1) and sleeved on the rotating shaft (3); the upper surface of the rotating disc (4) is used to carry the liquid material and drive the liquid material to rotate synchronously with the rotating shaft (3); the liquid material can be thrown from the center of the rotating disc (4) to the outer periphery thereof to the inner surface of the degassing tank (1) under the action of centrifugal force; At least one fixed disc (5) is fixed in the degassing tank (1), the outer periphery of the fixed disc (5) is connected to the inner surface of the degassing tank (1), the upper surface of the fixed disc (5) is used to carry the liquid material, and the liquid material can flow out along the outer periphery of the fixed disc (5) toward the through hole at the center thereof under the action of gravity; A plurality of the rotating discs (4) and a plurality of the fixed discs (5) are distributed alternately along the height direction of the degassing tank (1).

2. The continuous multi-stage degassing equipment according to claim 1, characterized in that: include: A first buffer tank (6) is used to buffer the undefoamed liquid material, and one end of the first buffer tank (6) can be connected to the feed port; The second buffer tank (7) is used to buffer the degassed liquid material. One end of the second buffer tank (7) can be connected to the discharge port. The second buffer tank (7) is connected to the vacuum source (2).

3. The continuous multi-stage degassing equipment according to claim 1, characterized in that: In the direction from the center of the rotating disk (4) to its outer periphery, the upper surface of the rotating disk (4) gradually tilts upwards, and the upper surface of the rotating disk (4) is a curved surface, a conical surface or a spherical surface.

4. The continuous multi-stage degassing equipment according to claim 1, characterized in that: In the direction from the outer periphery of the fixed disc (5) to the center thereof, the upper surface of the fixed disc (5) gradually slopes downward, and the upper surface of the fixed disc (5) is a curved surface, a conical surface or a spherical surface.

5. The continuous multi-stage degassing equipment according to claim 2, characterized in that: The device further comprises a first pipeline (8), wherein a first valve (9) is arranged on the first pipeline (8), wherein the first valve (9) can connect or disconnect the pressure regulating port and the vacuum source (2), wherein the first pipeline (8) has a first end and a second end opposite to each other, wherein the first end of the first pipeline (8) is connected to the pressure regulating port, and the first end of the first pipeline (8) is connected to the vacuum source (2); and / or, The device further comprises a second pipeline (10), wherein a second valve (11) is arranged on the second pipeline (10), and the second valve (11) can connect or disconnect the first buffer tank (6) and the feed port, wherein the second pipeline (10) has a first end and a second end opposite to each other, wherein the first end of the second pipeline (10) is connected to the feed port, and the second end of the second pipeline (10) is connected to the first buffer tank (6); and / or, It also includes a third pipeline (12), on which a third valve (13) is provided, and the third valve (13) can connect or disconnect the second buffer tank (7) and the discharge port, and the third pipeline (12) has a first end and a second end opposite to each other, the first end of the third pipeline (12) is connected to the discharge port, and the second end of the third pipeline (12) is connected to the second buffer tank (7); and / or, It also includes a fourth pipeline (14), on which a fourth valve (15) is provided, and the fourth valve (15) can connect or disconnect the second buffer tank (7) and the vacuum source (2), and the fourth pipeline (14) has a first end and a second end opposite to each other, the first end of the fourth pipeline (14) is connected to the second buffer tank (7), and the second end of the fourth pipeline (14) is connected to the vacuum source (2); and / or, It also includes a fifth pipeline (16) and a sixth pipeline (18), wherein the fifth pipeline (16) has a first end and a second end opposite to each other, the first end of the fifth pipeline (16) is connected to the second buffer tank (7), the second end of the fifth pipeline (16) is connected to the nitrogen source (22), and the fifth pipeline (16) is provided with a fifth valve (17), and the fifth valve (17) is used to connect or disconnect the second buffer tank (7) and the nitrogen source (22); the sixth pipeline (18) has a first end and a second end opposite to each other; the first end of the sixth pipeline (18) is connected to the second buffer tank (7), the second end of the sixth pipeline (18) is connected to the first storage end, and the sixth pipeline (18) is provided with a sixth valve (19), and the sixth valve (19) is used to connect or disconnect the second buffer tank (7) and the first storage end; and / or, The device further comprises a seventh pipeline (20), wherein the seventh pipeline (20) has a first end and a second end opposite to each other, wherein the first end of the seventh pipeline (20) is connected to the first buffer tank (6), and the second end of the seventh pipeline (20) is connected to the second storage end, and a seventh valve (21) is provided on the seventh pipeline (20), and the seventh valve (21) is used to connect or disconnect the first buffer tank (6) and the second storage end.

6. The continuous multi-stage degassing equipment according to claim 1, characterized in that: The other end of the rotating shaft (3) is connected to a driving device (23), and the driving device (23) is used to drive the rotating shaft (3) to rotate.

7. The continuous multi-stage degassing equipment according to claim 1, characterized in that: The rotating disc (4) comprises: A first conical disk (41) having a first opening and a second opening along a height direction, wherein the first opening of the first conical disk (41) is sleeved on the rotating shaft (3); A second conical disk (42) having a third opening and a fourth opening along a height direction, wherein the fourth opening of the second conical disk (42) is engaged with the second opening of the first conical disk (41); Here, the radius R3 of the third port>the radius R4 of the fourth port=the radius R2 of the second port>the radius R1 of the first port.

8. The continuous multi-stage degassing equipment according to claim 7, characterized in that: An angle a is formed between the upper surface of the first conical disk (41) and the rotation axis (3), and the angle a is between 0 and 90 degrees; an angle b is formed between the upper surface of the second conical disk (42) and the rotation axis (3), and the angle b is between 90 and 135 degrees.

9. The continuous multi-stage degassing equipment according to claim 1, characterized in that: The fixed disc (5) comprises: A first cylindrical disk (51) having a fifth opening and a sixth opening along a height direction, wherein the outer surface of the first cylindrical disk (51) is connected to the inner surface of the degassing tank (1), and the fifth opening of the first cylindrical disk (51) is used for the liquid material to flow in; A third conical disk (52) has a seventh opening and an eighth opening along the height direction, the seventh opening of the third conical disk (52) being engaged with the sixth opening of the first cylindrical disk (51), and the eighth opening of the third conical disk (52) being used for the liquid material to flow out; Here, the radius R5 of the fifth port=the radius R6 of the sixth port=the radius R7 of the seventh port>the radius R8 of the eighth port.

10. The continuous multi-stage degassing equipment according to claim 9, characterized in that: An angle c is formed between the upper surface of the third conical disk (52) and the rotation axis (3), and the angle c is between 90° and 180°.

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