Epoxy resin defoaming device

Abstract

The utility model provides an epoxy resin defoaming device which comprises a tank body, the upper end of the tank body is connected with an upper cover, and the upper cover seals an opening in the upper end of the tank body to form a working cavity; one end of the vacuum pipe is communicated with the working cavity, and the other end of the vacuum pipe is communicated with an air inlet end of vacuum equipment; the feeding pipe is located at the upper end of the upper cover, and the feeding pipe is communicated with the working cavity; a stirring paddle is fixedly arranged at the lower end of the rotating shaft, a liquid distribution disc corresponding to the feeding pipe is arranged at the upper end of the rotating shaft, and the rotating shaft is correspondingly provided with a driving assembly for driving the rotating shaft to rotate. The device has the advantages that materials enter the working cavity through the pump flow outlet and the feeding pipe, the motor drives the rotating shaft, the liquid distribution disc and the stirring paddle to rotate, the materials fall on the liquid distribution disc and move towards the outer side of the liquid distribution disc under the centrifugal effect, in the process, the materials are unfolded into a thin film, and in the negative pressure state, the thickness of the materials in the thin film state is small, so that the materials are uniform in thickness. Bubbles are convenient to separate, and the defoaming efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of epoxy resin production, in particular to an epoxy resin degassing device. Background Art

[0002] Bubbles are prone to appear in the production process of epoxy resin, and a degassing device is needed to remove the bubbles in the material. The principle of the current degassing device is to use a stirring paddle to stir the material, so that the material rotates around under the action of centrifugal force, and at the same time, a vacuum is added inside the device to separate the bubbles from the material. During use, the following problems exist: the distance between the bubbles and the gas-liquid interface is different, and the bubbles need to move a certain distance to separate from the material, resulting in low degassing efficiency. Utility Model Content

[0003] In view of this, the utility model aims to provide an epoxy resin degassing device, in order to solve at least one of the above-mentioned technical problems.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] An epoxy resin degassing device, comprising:

[0006] A tank body, wherein the upper end of the tank body is connected to an upper cover, and the upper cover seals an opening at the upper end of the tank body to form a working chamber;

[0007] A vacuum tube, one end of which is connected to the working chamber, and the other end of which is connected to the air inlet of the vacuum device;

[0008] A feed pipe, the feed pipe is located at the upper end of the upper cover and is connected to the working chamber;

[0009] A rotating shaft, a stirring paddle is fixedly arranged at the lower end of the rotating shaft, a liquid separation plate corresponding to the feed pipe is arranged at the upper end of the rotating shaft, and a driving component for driving the rotating shaft to rotate is correspondingly arranged on the rotating shaft.

[0010] Furthermore, the number of the stirring paddles is multiple, and the multiple stirring paddles are evenly arranged axially along the rotating shaft;

[0011] A fan blade is fixedly arranged at one end of the stirring paddle away from the rotating shaft, the upper end of the fan blade is fixedly connected to the stirring paddle, the lower end of the fan blade is fixedly connected to the rotating shaft, and there is a gap between the fan blade and the inner wall of the tank body;

[0012] The bottom end of the tank body is an inverted cone structure, the lower end of the fan blade is an arc structure, and there is a gap between the lower end of the fan blade and the bottom end of the tank body.

[0013] Furthermore, an annular baffle is fixedly provided at the upper end of the liquid separation plate, and the diameter of the upper end of the annular baffle is greater than the diameter of the lower end of the annular baffle.

[0014] Furthermore, the number of the liquid separation plates is two, namely a first liquid separation plate and a second liquid separation plate, and the height of the first liquid separation plate is higher than that of the second liquid separation plate;

[0015] The first liquid separation plate is provided with a material penetration hole corresponding to the feed pipe.

[0016] Furthermore, the lower end of the feed pipe is located inside the working cavity, and the discharge end of the feed pipe is arranged adjacent to the rotating shaft.

[0017] Furthermore, a material penetration tube corresponding to the material penetration hole is fixedly provided on the upper end surface of the first liquid separation plate;

[0018] The upper end of the feed-through tube is an inverted tapered tube.

[0019] Furthermore, the distance between the discharge end of the feed pipe and the upper end of the inverted tapered tube is 10 cm-20 cm.

[0020] Furthermore, an upper flange is fixedly provided at the lower end of the upper cover, and a lower flange is fixedly provided at the upper end of the tank body, and the upper flange and the lower flange are detachably connected via fasteners.

[0021] Furthermore, a discharge pipe communicating with the working chamber is fixedly provided at the bottom end of the tank body;

[0022] Support legs are fixedly arranged on the outer side wall of the tank body.

[0023] Furthermore, the driving assembly includes a motor and a reducer, the housing of the motor is fixedly connected to the housing of the reducer, the housing of the reducer is fixedly connected to the upper cover, the output shaft of the motor is connected to the input end of the reducer, and the output end of the reducer is fixedly connected to the rotating shaft;

[0024] The rotating shaft and the upper cover are sealed via a mechanical sealing assembly.

[0025] Compared with the prior art, the epoxy resin degassing device described in the utility model has the following beneficial effects:

[0026] The utility model discloses an epoxy resin degassing device, in which materials enter into a working chamber through a pump outlet and a feed pipe, a motor drives a rotating shaft, a liquid separation plate and a stirring paddle to rotate, materials fall onto the liquid separation plate, and move toward the outside of the liquid separation plate under the action of centrifugation, during which the materials unfold into a thin film, and under a negative pressure state, the thickness of the materials in the thin film state is small, which is convenient for bubbles to detach, thereby improving the degassing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0028] Figure 1 This is a schematic diagram of the cross-sectional structure of the device described in the embodiment of the utility model;

[0029] Figure 2 This is a schematic diagram of the three-dimensional structure of the device according to an embodiment of the utility model;

[0030] Figure 3 This is a schematic diagram of the three-dimensional structure of the tank body according to an embodiment of the utility model;

[0031] Figure 4 This is a schematic diagram of the three-dimensional structure of the upper cover according to an embodiment of the utility model;

[0032] Figure 5 This is a schematic diagram of the three-dimensional structure of the stirring paddle according to an embodiment of the utility model;

[0033] Figure 6 This is a schematic diagram of the three-dimensional structure of the first liquid separation plate according to an embodiment of the utility model;

[0034] Figure 7 For the embodiment of the utility model Figure 1 Schematic diagram of the structure at point A in the middle.

[0035] Description of reference numerals:

[0036] 1. Upper cover; 2. Tank body; 3. Fasteners; 4. Rotating shaft; 5. Agitator; 6. First liquid separation plate; 7. Second liquid separation plate; 8. Feed pipe; 9. Fan blades; 10. Motor; 11. Reducer; 101. Upper flange; 103. Vacuum tube; 104. Feed pipe; 201. Support legs; 202. Discharge pipe; 203. Lower flange; 601. Annular baffle; 801. Inverted tapered tube. DETAILED DESCRIPTION

[0037] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0038] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0040] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0041] like Figures 1 to 7 As shown, an epoxy resin degassing device comprises: a tank body 2, the upper end of the tank body 2 is connected to the upper cover 1, the upper cover 1 seals the opening at the upper end of the tank body 2 to form a working chamber; a vacuum tube 103, one end of the vacuum tube 103 is connected to the working chamber, and the other end is connected to the air inlet end of the vacuum equipment; a feed pipe 104, the feed pipe 104 is located at the upper end of the upper cover 1, and the feed pipe 104 is connected to the working chamber; a rotating shaft 4, a stirring paddle 5 is fixedly arranged at the lower end of the rotating shaft 4, a liquid separation plate corresponding to the feed pipe 104 is arranged at the upper end of the rotating shaft 4, and a driving component for driving the rotating shaft 4 to rotate is correspondingly arranged on the rotating shaft 4.

[0042] The semi-finished materials of epoxy resin are subjected to degassing operation, hereinafter referred to as materials.

[0043] There are multiple stirring paddles 5, and the multiple stirring paddles 5 are evenly arranged axially along the rotating shaft 4; a fan blade 9 is fixedly provided at one end of the stirring paddle 5 away from the rotating shaft 4, the upper end of the fan blade 9 is fixedly connected to the stirring paddle 5, and the lower end of the fan blade 9 is fixedly connected to the rotating shaft 4, and there is a gap between the fan blade 9 and the inner wall of the tank body 2; the bottom end of the tank body 2 is an inverted cone structure, and the lower end of the fan blade 9 is an arc structure, and there is a gap between the lower end of the fan blade 9 and the bottom end of the tank body 2. Under the joint action of the stirring paddle 5 and the fan blade 9, the material rotates inside the tank body 2.

[0044] An annular baffle 601 is fixedly provided at the upper end of the separatory plate. The upper diameter of the annular baffle 601 is larger than the lower diameter of the annular baffle 601. The setting of the annular baffle 601 can prevent the material from being quickly thrown away from the separatory plate, prolong the time the material stays on the separatory plate, and thus improve the degassing efficiency.

[0045] There are two liquid separation plates, namely the first liquid separation plate 6 and the second liquid separation plate 7. The height of the first liquid separation plate 6 is higher than that of the second liquid separation plate 7. A material penetration hole corresponding to the feed pipe 104 is opened on the first liquid separation plate 6. The setting of the material penetration hole allows a part of the material to reach the upper end surface of the second liquid separation plate 7 through the material penetration hole. The two liquid separation plates make the material thickness lower and improve the degassing efficiency.

[0046] The discharge end is arranged near the rotating shaft 4, and the material reaches the center of the first liquid separation plate 6 through the end of the feed pipe 104, and is spread on the upper end surface of the first liquid separation plate 6 under the action of centrifugal force, thereby improving the degassing efficiency.

[0047] A material penetration tube 8 corresponding to the material penetration hole is fixedly arranged on the upper end surface of the first liquid separation plate 6; the material penetration tube 8 is higher than the first liquid separation plate 6, which can prevent the material on the first liquid separation plate 6 from entering the feeding hole.

[0048] The upper end of the material-penetrating tube 8 is an inverted tapered tube 801 . The arrangement of the inverted tapered tube 801 facilitates the material to enter the second liquid separation plate 7 .

[0049] The distance between the discharge end of the feed pipe 104 and the upper end of the inverted tapered tube 801 is 15 cm, which prevents the material from being sprayed while ensuring that part of the material can pass through the permeable pipe 8 and reach the upper end surface of the second liquid separation plate 7.

[0050] An upper flange 101 is fixedly disposed at the lower end of the upper cover 1 , and a lower flange 203 is fixedly disposed at the upper end of the tank body 2 . The upper flange 101 and the lower flange 203 are detachably connected via a fastener 3 , and a sealing gasket is disposed between the upper flange 101 and the lower flange 203 .

[0051] A discharge pipe 202 communicating with the working chamber is fixedly provided at the bottom end of the tank body 2, and the discharge pipe 202 facilitates the outflow of materials; a support leg 201 is fixedly provided on the outer wall of the tank body 2, and the support leg 201 facilitates the installation of the device on the platform.

[0052] The driving assembly includes a motor 10 and a reducer 11. The housing of the motor 10 is fixedly connected to the housing of the reducer 11, the housing of the reducer 11 is fixedly connected to the upper cover 1, the output shaft of the motor 10 is connected to the input end of the reducer 11, and the output end of the reducer 11 is fixedly connected to the rotating shaft 4; the rotating shaft 4 and the upper cover 1 are sealed by a mechanical sealing assembly, which ensures the sealing of the rotating shaft 4 and the upper cover 1.

[0053] Working process:

[0054] When this scheme is implemented, the valve on the discharge pipe 202 is closed and the vacuum equipment is turned on. The preferred vacuum equipment is the existing plunger vacuum pump. The gas in the working chamber is evacuated through the vacuum equipment, and the working chamber is in a negative pressure state. The material enters the working chamber through the outlet of the pump flow and the feed pipe 104. The motor 10 drives the rotating shaft 4 and the liquid separation plate and the stirring paddle 5 to rotate. Part of the material falls on the first liquid separation plate 6, and the other part of the material falls on the second liquid separation plate 7 through the material permeable hole. Under the action of centrifugation, it moves to the outside of the liquid separation plate. In this process, the material unfolds into a thin film. Under the negative pressure state, the thickness of the material in the thin film state is relatively small, which is convenient for the separation of bubbles and improves the degassing efficiency. After the material separates from the liquid separation plate, it falls to the bottom of the tank body 2 under the action of gravity, and rotates under the stirring action of the stirring paddle 5 for further degassing.

[0055] Compared with the conventional stirring blade 5 that directly stirs the material, by providing the liquid separation plate, the material is in a thin film state for a period of time, which facilitates the separation of bubbles and improves the degassing efficiency.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An epoxy resin degassing device, characterized in that: include: A tank body (2), the upper end of the tank body (2) being connected to the upper cover (1), and the upper cover (1) sealing the opening at the upper end of the tank body (2) to form a working chamber; A vacuum tube (103), one end of which is connected to the working chamber, and the other end of which is connected to the air inlet end of the vacuum device; A feed pipe (104), the feed pipe (104) being located at the upper end of the upper cover (1), and the feed pipe (104) being in communication with the working chamber; A rotating shaft (4), a stirring paddle (5) is fixedly provided at the lower end of the rotating shaft (4), a liquid separation plate corresponding to the feed pipe (104) is provided at the upper end of the rotating shaft (4), and a driving component for driving the rotating shaft (4) to rotate is correspondingly provided on the rotating shaft (4).

2. The epoxy resin degassing device according to claim 1, characterized in that: The number of the stirring paddles (5) is multiple, and the multiple stirring paddles (5) are evenly arranged axially along the rotating shaft (4); A fan blade (9) is fixedly provided at one end of the stirring paddle (5) away from the rotating shaft (4), the upper end of the fan blade (9) is fixedly connected to the stirring paddle (5), the lower end of the fan blade (9) is fixedly connected to the rotating shaft (4), and a gap exists between the fan blade (9) and the inner wall of the tank body (2); The bottom end of the tank body (2) is an inverted cone-shaped structure, the lower end of the fan blade (9) is an arc-shaped structure, and there is a gap between the lower end of the fan blade (9) and the bottom end of the tank body (2).

3. The epoxy resin degassing device according to claim 1, characterized in that: An annular baffle (601) is fixedly disposed at the upper end of the liquid separation plate, and the diameter of the upper end of the annular baffle (601) is greater than the diameter of the lower end of the annular baffle (601).

4. The epoxy resin degassing device according to claim 1, characterized in that: The number of the liquid separation plates is two, namely a first liquid separation plate (6) and a second liquid separation plate (7), and the height of the first liquid separation plate (6) is higher than that of the second liquid separation plate (7); The first liquid separation plate (6) is provided with a material penetration hole corresponding to the feed pipe (104).

5. The epoxy resin degassing device according to claim 4, characterized in that: The lower end of the feed pipe (104) is located inside the working chamber, and the discharge end of the feed pipe (104) is arranged adjacent to the rotating shaft (4).

6. The epoxy resin degassing device according to claim 4, characterized in that: A material penetration tube (8) corresponding to the material penetration hole is fixedly provided on the upper end surface of the first liquid separation plate (6); The upper end of the feed-through tube (8) is an inverted tapered tube (801).

7. The epoxy resin degassing device according to claim 6, characterized in that: The distance between the discharge end of the feed pipe (104) and the upper end of the inverted cone tube (801) is 10 cm to 20 cm.

8. The epoxy resin degassing device according to claim 1, characterized in that: An upper flange (101) is fixedly provided at the lower end of the upper cover (1), and a lower flange (203) is fixedly provided at the upper end of the tank body (2); the upper flange (101) and the lower flange (203) are detachably connected via a fastener (3).

9. The epoxy resin degassing device according to claim 1, characterized in that: A discharge pipe (202) communicating with the working chamber is fixedly provided at the bottom end of the tank body (2); Support legs (201) are fixedly provided on the outer side wall of the tank body (2).

10. The epoxy resin degassing device according to claim 1, characterized in that: The driving assembly comprises a motor (10) and a reducer (11); the housing of the motor (10) is fixedly connected to the housing of the reducer (11); the housing of the reducer (11) is fixedly connected to the upper cover (1); the output shaft of the motor (10) is connected to the input end of the reducer (11); and the output end of the reducer (11) is fixedly connected to the rotating shaft (4); The rotating shaft (4) and the upper cover (1) are sealed via a mechanical sealing assembly.

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