A defoaming device for epoxy resin production

Abstract

The utility model provides a kind of defoaming device for epoxy resin production, comprising: tank body, upper end opening of tank body is closed by upper cover;Rotary shaft, the rotary shaft is located tank body inside, the rotary shaft is equipped with the drive assembly corresponding for driving rotary shaft rotation;Conical dispersion disc, the conical dispersion disc is fixedly connected with rotary shaft, the diameter of conical dispersion disc lower end is less than tank body inside diameter;Inverted conical flow guide ring, flow guide disc outside is fixedly connected with tank body inside, the lower end inner diameter of inverted conical flow guide ring is greater than the diameter of rotary shaft, the inverted conical flow guide ring is located above conical dispersion disc.The utility model has beneficial effects: compared with prior art, by setting inverted conical flow guide ring, not only increase film area, improve defoaming efficiency, but also can reduce the possibility of water mist into exhaust pipe, prevent the blockage of vacuum pump.

Description

Technical Field

[0001] This utility model belongs to the technical field of epoxy resin production equipment, and in particular relates to a degassing device for epoxy resin production. Background Technology

[0002] During the production of epoxy resin, some air bubbles are present in the material, requiring a degassing device to remove them. Current degassing devices use a stirring paddle to agitate the material and add a vacuum inside the device to cause the air bubbles to precipitate. Patent number CN222517803U, titled "An Epoxy Resin Degassing Device Uses a Separating Plate to Form a Thin Film in the Material to Facilitate Air Bubble Release," has the following problems during use: First, the material splashes under centrifugal force, forming water mist, which can easily clog the vacuum device by entering through the exhaust pipe; second, the material tends to adhere to the inner wall of the tank; and third, the area of ​​the formed film is small, resulting in low degassing efficiency. Utility Model Content

[0003] In view of this, the present invention aims to provide a degassing device for epoxy resin production, in order to solve at least one of the above-mentioned technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A degassing device for epoxy resin production, comprising:

[0006] The tank body, with a top cover sealing the upper opening of the tank body;

[0007] A rotating shaft is located inside the tank body, and a drive assembly is provided to drive the rotating shaft to rotate.

[0008] A conical dispersion disc, which is fixedly connected to a rotating shaft, wherein the diameter of the lower end of the conical dispersion disc is smaller than the inner diameter of the tank body;

[0009] An inverted conical guide ring is fixedly connected to the outer side of the guide plate and the inner side of the tank. The inner diameter of the lower end of the inverted conical guide ring is larger than the diameter of the rotating shaft. The inverted conical guide ring is located above the conical dispersion plate.

[0010] Furthermore, a support leg is fixed on the outer wall of the tank, a discharge pipe is fixed at the lower end of the tank and the discharge pipe is connected to the inner side of the tank, and an air extraction pipe is fixed on the top cover, one end of the air extraction pipe is connected to the inner side of the tank and the other end is connected to the air inlet of the vacuum device.

[0011] A valve is connected to the discharge pipe.

[0012] Furthermore, a feed pipe is fixedly provided on the upper cover, the feed pipe passes through the upper cover and is located inside the tank body, and one end of the feed pipe inside the tank body is located inside the inverted conical guide ring.

[0013] Furthermore, there are multiple conical dispersion discs, and each conical dispersion disc is provided with an inverted conical guide ring above it. A connecting pipe is fixed on the conical dispersion disc, and a first connecting hole is opened on the connecting pipe. A second connecting hole is opened on the rotating shaft. The connecting bolt passes through the first connecting hole and the second connecting hole and is threadedly connected to the nut.

[0014] Furthermore, a crossbar is fixed to the outer side of the lower end of the connecting pipe. The crossbar is located below the conical dispersion disc. First scrapers corresponding to the inner sidewall of the tank are fixed to both ends of the crossbar. There is a gap between the first scrapers and the inner sidewall of the tank.

[0015] Furthermore, a second scraper is fixed at the lower end of the first scraper of the conical dispersion disc at the lowest end, the second scraper is opposite to the bottom of the inner side of the tank, and there is a gap between the second scraper and the bottom of the inner side of the tank.

[0016] Except for the lowest conical dispersion disk, the lower end of the first scraper of the other conical dispersion disks is fixed with a third scraper. The third scraper corresponds to the upper end face of the inverted conical guide ring, and there is a gap between the third scraper and the upper end face of the inverted conical guide ring.

[0017] Furthermore, the outer diameter of the upper end of the inverted conical guide ring is larger than the outer diameter of the lower end of the inverted conical guide ring, and the outer diameter of the upper end of the inverted conical guide ring matches the inner diameter of the tank. An installation ring is fixed at the lower end of the outer wall of the inverted conical guide ring, and the outer diameter of the installation ring matches the inner diameter of the tank.

[0018] Furthermore, the inverted conical guide ring is composed of two semi-conical plates, and an arc-shaped plate is fixed at the lower outer end of the semi-conical plate, and the two arc-shaped plates form a mounting ring.

[0019] Furthermore, a limiting hole is opened on the side wall of the mounting ring, and a limiting groove is opened on the lower end face of the mounting ring. A first internally threaded tube corresponding to the limiting hole and the limiting groove is fixed on the tank body. Each limiting hole is provided with a first internally threaded tube, and each limiting groove is provided with a first internally threaded tube. The first internally threaded tube is internally threaded with a limiting bolt. The limiting bolt passes through the tank body and is located inside the limiting hole or the limiting groove.

[0020] Furthermore, a second internally threaded tube corresponding to the limiting hole and the limiting groove is fixed on the upper cover. The internal thread of the second internally threaded tube is connected to a limiting bolt. The limiting bolt passes through the limiting hole or the limiting groove of the uppermost inverted conical guide ring of the upper cover.

[0021] Compared with the prior art, the degassing device for epoxy resin production described in this utility model has the following advantages:

[0022] The degassing device for epoxy resin production described in this utility model, compared with the prior art, not only increases the film area and improves the degassing efficiency by setting an inverted conical guide ring, but also reduces the possibility of water mist entering the exhaust pipe and prevents the vacuum pump from getting clogged. Attached Figure Description

[0023] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0024] Figure 1 This is a three-dimensional structural diagram of the device described in an embodiment of the present utility model;

[0025] Figure 2 As described in the embodiments of this utility model Figure 1 Schematic diagram of the structure at point A in the middle;

[0026] Figure 3 As described in the embodiments of this utility model Figure 1 Schematic diagram of the structure at point B;

[0027] Figure 4 This is a three-dimensional structural diagram of the connection state between the rotating shaft and the conical dispersion disk according to an embodiment of the present invention;

[0028] Figure 5 As described in the embodiments of this utility model Figure 4 Schematic diagram of the structure at point C;

[0029] Figure 6 This is a three-dimensional structural diagram of the conical dispersing disc connected to the second scraper according to an embodiment of the present invention;

[0030] Figure 7 This is a three-dimensional structural diagram of the conical dispersing disc connected to the third scraper in an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of the three-dimensional structure of the semi-conical plate described in an embodiment of the present invention;

[0032] Figure 9 This is a schematic cross-sectional view of the device described in an embodiment of the present invention;

[0033] Figure 10 As described in the embodiments of this utility model Figure 9 Schematic diagram of the structure at point D;

[0034] Figure 11This is a cross-sectional structural diagram of the device for displaying the flow direction of liquids and gases according to an embodiment of the present invention.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Tank body; 2. Top cover; 3. Drive assembly; 4. Feed pipe; 5. Inverted conical guide ring; 6. Conical dispersion disc; 7. Limiting bolt; 101. Support leg; 102. Discharge pipe; 103. First internal threaded pipe; 201. Suction pipe; 202. Second internal threaded pipe; 501. Mounting ring; 502. Limiting groove; 503. Limiting hole; 601. Connecting pipe; 602. Third scraper; 603. First scraper; 604. Crossbar; 605. Second scraper. Detailed Implementation

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0038] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

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

[0041] like Figures 1 to 11As shown, a degassing device for epoxy resin production includes: a tank 1, with a cover 2 sealing the upper opening of the tank 1; a rotating shaft located inside the tank 1, and a drive assembly 3 corresponding to the rotating shaft for driving its rotation; a conical dispersion disc 6 fixedly connected to the rotating shaft, the lower diameter of the conical dispersion disc 6 being smaller than the inner diameter of the tank 1; and an inverted conical guide ring 5 fixedly connected to the outer side of the guide disc and the inner side of the tank 1, the lower inner diameter of the inverted conical guide ring 5 being larger than the diameter of the rotating shaft, and the inverted conical guide ring 5 being located above the conical dispersion disc 6. The drive assembly 3 employs, but is not limited to, existing motor and reducer assemblies, with the motor's output shaft connected to the reducer's input shaft, and the reducer's output shaft connected to the rotating shaft.

[0042] A support leg 101 is fixed to the outer wall of the tank body 1. A discharge pipe 102 is fixed to the lower end of the tank body 1, and the discharge pipe 102 is connected to the inner side of the tank body 1. A suction pipe 201 is fixed to the upper cover 2, one end of which is connected to the inner side of the tank body 1, and the other end is connected to the air inlet of a vacuum device. The vacuum device uses, but is not limited to, existing vacuum pumps. A valve is connected to the discharge pipe 102. An inlet pipe 4 is fixed to the upper cover 2, passing through the upper cover 2 and located inside the tank body 1. One end of the inlet pipe 4 located inside the tank body 1 is located inside the inverted conical guide ring 5. When the valve of the discharge pipe 102 is closed, a negative pressure chamber is formed between the tank body 1 and the upper cover 2. The gas inside the tank body 1 is extracted by the vacuum pump to achieve negative pressure in the negative pressure chamber. There are three conical dispersion discs 6. Each conical dispersion disc 6 has an inverted conical guide ring 5 above it. A connecting pipe 601 is fixed on the conical dispersion disc 6. A connecting hole 1 is opened on the connecting pipe 601, and a connecting hole 2 is opened on the rotating shaft. The connecting bolt passes through the connecting hole 1 and the connecting hole 2 and is threadedly connected to the nut.

[0043] The material to be degassed enters the tank 1 through the feed pipe 4. One end of the feed pipe 4 is located inside the tank 1, inside the uppermost inverted conical guide ring 5. The material flows to the position near the axis of the conical dispersion disk 6. The rotating shaft drives the conical dispersion disk 6 to rotate, generating centrifugal force. Under the action of centrifugal force, the material flows to the edge of the conical dispersion disk 6 and forms a thin film. The material is further thrown onto the inner wall of the tank 1 to form a thin film. Then it flows to the upper surface of the inverted conical guide ring 5 to form a thin film. Then it flows to the position near the axis of the lower conical dispersion disk 6. The thin film state facilitates the precipitation of bubbles in the material to be degassed under vacuum. The inverted conical guide ring 5 plays the role of increasing the film area.

[0044] Reference for material flow direction Figure 11 In the direction of the arrow on the left side of the rotating shaft, when the material is further thrown against the inner wall of tank 1, the material splashes and forms water mist. The inverted conical guide ring 5 above extends the distance between the water mist and the suction pipe 201 (gas flow direction as shown). Figure 11(The arrow on the right side of the rotating shaft) can reduce water mist entering the suction pipe 201 and prevent the vacuum pump from becoming clogged.

[0045] A crossbar 604 is fixed to the outer side of the lower end of the connecting pipe 601. The crossbar 604 is located below the conical dispersion disc 6. First scrapers 603 corresponding to the inner sidewall of the tank 1 are fixed to both ends of the crossbar 604. There is a gap (5mm) between the first scraper 603 and the inner sidewall of the tank 1. A second scraper 605 is fixed to the lower end of the first scraper 603 of the lowest conical dispersion disc 6. The second scraper 605 corresponds to the bottom of the inner side of the tank 1. There is a gap (5mm) between the second scraper 605 and the bottom of the inner side of the tank 1. A third scraper 602 is fixed to the lower end of the first scraper 603 of the other conical dispersion discs 6 except the lowest conical dispersion disc 6. The third scraper 602 corresponds to the upper end face of the inverted conical guide ring 5. There is a gap (5mm) between the third scraper 602 and the upper end face of the inverted conical guide ring 5.

[0046] The installation of the first scraper 603, the second scraper 605, and the third scraper 602 can reduce the phenomenon of material sticking to the wall.

[0047] The outer diameter of the upper end of the inverted conical guide ring 5 is larger than the outer diameter of the lower end of the inverted conical guide ring 5. The outer diameter of the upper end of the inverted conical guide ring 5 matches the inner diameter of the tank body 1. An installation ring 501 is fixed at the lower end of the outer wall of the inverted conical guide ring 5. The outer diameter of the installation ring 501 matches the inner diameter of the tank body 1. The installation ring 501 facilitates the installation of the inverted conical guide ring 5.

[0048] The inverted conical guide ring 5 is composed of two semi-conical plates. An arc-shaped plate is fixed at the lower outer end of the semi-conical plate. The two arc-shaped plates form an installation ring 501. The split design facilitates the installation and disassembly of the inverted conical guide ring 5.

[0049] The mounting ring 501 has two limiting holes 503 on its side wall and two limiting grooves 502 on its lower end face. The position of the limiting grooves 502 corresponds to the upper end of the first scraper 603. The tank body 1 is fixed with a first internal threaded tube 103 corresponding to the limiting holes 503 of the two lower inverted conical guide rings 5. The tank body 1 is fixed with a first internal threaded tube 103 corresponding to the limiting grooves 502 of the two lower inverted conical guide rings 5. Each limiting hole 503 corresponds to a first internal threaded tube 103, and each limiting groove 502 corresponds to a first internal threaded tube 103. The first internal threaded tube 103 is internally threaded with a limiting bolt 7. The limiting bolt 7 passes through the tank body 1 and is located inside the limiting hole 503 or the limiting groove 502.

[0050] The upper cover 2 is fixed with a second internal threaded tube 202 corresponding to the limiting hole 503 of the uppermost inverted conical guide ring 5. The upper cover 2 is fixed with a second internal threaded tube 202 corresponding to the limiting groove 502 of the uppermost inverted conical guide ring 5. The second internal threaded tube 202 is internally threaded with a limiting bolt 7. The limiting bolt 7 passes through the inner side of the limiting hole 503 or the limiting groove 502 of the uppermost inverted conical guide ring 5 of the upper cover 2.

[0051] When installing the two inverted conical guide rings 5 ​​inside the tank body 1, the limiting bolt 7 inside the first internal threaded pipe 103 does not protrude from the inner wall of the tank body 1. The lowermost inverted conical guide ring 5 is composed of two semi-conical plates and is installed inside the tank body 1. The limiting groove 502 is aligned with the lower first scraper 603 and inserted. The middle inverted conical guide ring 5 is operated in the same way. Then, the rotating shaft is moved downward. When the lowermost inverted conical guide ring 5 is lower than the first internal threaded pipe 103 above the tank body 1, the part of the first internal threaded pipe 103 corresponding to the limiting groove 502 is tightened. The limiting bolt 7 protrudes from the inner wall of the tank body 1 but has a 1mm gap with the first scraper 603. The rotating rod rotates so that the first scraper 603 aligns with the limiting bolt 7 protruding from the inner wall of the tank body 1. The rotating shaft continues to move downward. The limiting bolt 7 protruding from the inner wall of the tank body 1 supports the inverted conical guide ring 5. Then, all the limiting bolts 7 on the tank body 1 are tightened. Some limiting bolts 7 are inserted into the limiting groove, and some limiting bolts 7 are inserted into the limiting hole. The disassembly and installation process of the inverted conical guide ring 5 is convenient and improves maintenance efficiency.

[0052] Compared with existing technologies, by setting an inverted conical guide ring 5, not only is the film area increased and the degassing efficiency improved, but the possibility of water mist entering the exhaust pipe is also reduced, preventing the vacuum pump from becoming clogged.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

[0054] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A degassing device for epoxy resin production, characterized in that, include: The tank body (1) and the top cover (2) seal the upper opening of the tank body (1); A rotating shaft is located inside the tank body (1), and a driving assembly (3) is provided to drive the rotating shaft to rotate. A conical dispersion disk (6) is fixedly connected to a rotating shaft, and the diameter of the lower end of the conical dispersion disk (6) is smaller than the inner diameter of the tank body (1). The inverted conical guide ring (5) is fixedly connected to the inner side of the tank (1) on the outer side of the guide plate. The inner diameter of the lower end of the inverted conical guide ring (5) is larger than the diameter of the rotating shaft. The inverted conical guide ring (5) is located above the conical dispersion plate (6).

2. The defoaming device for epoxy resin production according to claim 1, characterized in that: The outer wall of the tank (1) is fixed with a support leg (101), the lower end of the tank (1) is fixed with a discharge pipe (102), the discharge pipe (102) is connected to the inner side of the tank (1), the upper cover (2) is fixed with a suction pipe (201), one end of the suction pipe (201) is connected to the inner side of the tank (1), and the other end is connected to the air inlet of the vacuum device; A valve is connected to the discharge pipe (102).

3. The defoaming device for epoxy resin production according to claim 1, characterized in that: The upper cover (2) is fixed with a feed pipe (4), which passes through the upper cover (2) and is located inside the tank body (1). One end of the feed pipe (4) located inside the tank body (1) is located inside the inverted conical guide ring (5).

4. The defoaming device for epoxy resin production according to claim 1, characterized in that: There are multiple conical dispersion discs (6), and each conical dispersion disc (6) is provided with an inverted conical guide ring (5) above it. A connecting pipe (601) is fixed on the conical dispersion disc (6). A connecting hole one is opened on the connecting pipe (601), and a connecting hole two is opened on the rotating shaft. The connecting bolt passes through the connecting hole one and the connecting hole two and is threadedly connected to the nut.

5. The defoaming device for epoxy resin production according to claim 4, characterized in that: A crossbar (604) is fixed on the outer side of the lower end of the connecting pipe (601). The crossbar (604) is located below the conical dispersion disc (6). A first scraper (603) corresponding to the inner wall of the tank (1) is fixed at both ends of the crossbar (604). There is a gap between the first scraper (603) and the inner wall of the tank (1).

6. The defoaming device for epoxy resin production according to claim 5, characterized in that: The lower end of the first scraper (603) of the cone-shaped dispersion disc (6) at the bottom end is fixed with a second scraper (605). The second scraper (605) corresponds to the bottom end of the inner side of the tank (1), and there is a gap between the second scraper (605) and the bottom end of the inner side of the tank (1). Except for the lowest conical dispersion disk (6), the lower end of the first scraper (603) of the other conical dispersion disks (6) is fixed with a third scraper (602). The third scraper (602) corresponds to the upper end face of the inverted conical guide ring (5), and there is a gap between the third scraper (602) and the upper end face of the inverted conical guide ring (5).

7. The defoaming device for epoxy resin production according to claim 1, characterized in that: The outer diameter of the upper end of the inverted conical guide ring (5) is larger than the outer diameter of the lower end of the inverted conical guide ring (5). The outer diameter of the upper end of the inverted conical guide ring (5) matches the inner diameter of the tank body (1). An installation ring (501) is fixedly provided at the lower end of the outer wall of the inverted conical guide ring (5). The outer diameter of the installation ring (501) matches the inner diameter of the tank body (1).

8. The defoaming device for epoxy resin production according to claim 7, characterized in that: The inverted conical guide ring (5) is composed of two semi-conical plates. An arc-shaped plate is fixed at the lower outer end of the semi-conical plate, and the two arc-shaped plates form an installation ring (501).

9. The defoaming device for epoxy resin production according to claim 7, characterized in that: The mounting ring (501) has a limiting hole (503) on its side wall and a limiting groove (502) on its lower end face. The tank body (1) is fixed with a first internal threaded tube (103) corresponding to the limiting hole (503) and the limiting groove (502). Each limiting hole (503) is provided with a first internal threaded tube (103) and each limiting groove (502) is provided with a first internal threaded tube (103). The first internal threaded tube (103) is internally threaded with a limiting bolt (7). The limiting bolt (7) penetrates the tank body (1) and is located inside the limiting hole (503) or the limiting groove (502).

10. The defoaming device for epoxy resin production according to claim 9, characterized in that: The upper cover (2) is fixed with a second internal threaded tube (202) corresponding to the limiting hole (503) and the limiting groove (502). The second internal threaded tube (202) is internally threaded with a limiting bolt (7). The limiting bolt (7) passes through the inner side of the limiting hole (503) or the limiting groove (502) of the uppermost inverted conical guide ring (5) of the upper cover (2).

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