Reaction kettle for preparing amino resin

Abstract

The utility model discloses a reaction kettle for preparing amino resin, which relates to the technical field of reaction kettles and comprises a kettle body, a bearing table is fixedly arranged in the middle of the top of the kettle body, and a U-shaped frame is fixedly arranged at the top of the bearing table. After the motor is started, the first bevel gear is driven to rotate, then the second bevel gear and the third bevel gear are driven to rotate, the rotating directions of the first bevel gear and the third bevel gear are opposite, then the rotating directions of the sleeve shaft and the stirring shaft are opposite, and the rotating directions of the first stirring rod and the second stirring rod are opposite. The reaction kettle for preparing the amino resin solves the problems that in the using process of an existing reaction kettle for preparing the amino resin, stirring blades on a stirring shaft only rotate in one direction, so that the materials in a kettle body always rotate in one direction, the mixing speed of the materials is low, and the mixing effect is poor. The preparation efficiency of the amino resin is reduced.

Description

Technical Field

[0001] This utility model relates to the field of reaction vessel technology, and in particular to a reaction vessel for preparing amino resin. Background Technology

[0002] Amino resins are a general term for resins formed by the condensation polymerization of amino compounds such as urea, melamine or benzomelamine with formaldehyde and alcohols. Important resins include urea-formaldehyde resin, melamine-formaldehyde resin and polyamide-polyamine epichlorohydrin, etc. A reaction vessel is required in the preparation of amino resins.

[0003] Existing patent CN217527479U, entitled "A Reactor for Preparing Water-Soluble High-Sub-Methyl Etherified Amino Resin," proposes that this invention replaces the single high-power motor in the prior art with two low-power motors. This allows for selection of the appropriate drive based on the liquid level. At low liquid levels, only a single motor is activated to drive the bottom stirring blades, while at high liquid levels, both motors are activated to drive all the blades. This improves energy utilization, reduces energy waste, and is more energy-efficient.

[0004] However, in the above-disclosed amino resin preparation reactor, the stirring blades on the stirring shaft only rotate in one direction during use, causing the material inside the reactor to always rotate in one direction, resulting in a slow mixing speed between materials and reducing the amino resin preparation efficiency. Therefore, it is necessary to propose an amino resin preparation reactor to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a reaction vessel for preparing amino resins, in order to solve the problem mentioned above, that in the process of using the existing reaction vessel for preparing amino resins, the stirring blades on the stirring shaft only rotate in one direction, causing the material inside the reaction vessel to always rotate in one direction, resulting in a slow mixing speed between materials and reducing the efficiency of amino resin preparation.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a reaction vessel for preparing amino resin, comprising a vessel body, a support platform fixedly disposed at the middle of the top of the vessel body, a U-shaped frame fixedly disposed at the top of the support platform, a motor fixedly disposed at the top of the U-shaped frame, the drive end of the motor being rotatably connected to the U-shaped frame via a first bearing, and a stirring shaft fixedly connected to the drive end of the motor, a first arc rod fixedly connected to one end of the stirring shaft that passes through the support platform and extends into the interior of the vessel body, and a first stirring rod fixedly disposed at the end of the first arc rod;

[0007] A second bevel gear is rotatably mounted on the side of the U-shaped frame via a second bearing. A first bevel gear is fixedly mounted on the outer ring of the stirring shaft. A sleeve shaft is movably mounted on the outer ring of the stirring shaft. The sleeve shaft is rotatably connected to a support platform via a third bearing. A third bevel gear is fixedly mounted on the outer ring of the top of the sleeve shaft. The second bevel gear is located between the first and third bevel gears, and both the first and third bevel gears mesh with the second bevel gear. A second arc rod is fixedly mounted on the outer ring of one end of the sleeve shaft that extends into the vessel body. A second stirring rod is fixedly mounted on the end of the second arc rod. The straight-line distance from the second stirring rod to the stirring shaft is half the straight-line distance from the first stirring rod to the stirring shaft.

[0008] Preferably, there are two of each of the first and second arc rods, with the two first arc rods symmetrically distributed about the vertical center line of the stirring shaft and the two second arc rods symmetrically distributed about the vertical center line of the sleeve shaft.

[0009] Preferably, a feed inlet is fixedly provided at the top of the vessel body, and a discharge outlet is fixedly provided at the bottom of the vessel body. Both the discharge outlet and the feed inlet are equipped with electric valves.

[0010] Preferably, a first connecting rod is fixedly provided on the side of the first stirring rod, and a first scraper is fixedly provided at the end of the first connecting rod, and the first scraper is movably fitted with the inner wall of the vessel.

[0011] Preferably, the curvature of the first arc rod is the same as the curvature of the inner wall of the bottom of the vessel, and a second connecting rod is fixedly provided on each side of the first arc rod. A second scraper is fixedly provided at the end of the second connecting rod, and the second scraper is movably fitted with the inner wall of the bottom of the vessel.

[0012] Preferably, the outer wall of the vessel is fixedly provided with three support rods arranged in a ring evenly, and the bottom of the support rods is fixedly provided with rubber plates.

[0013] Preferably, a controller is provided on the outer wall of the vessel, and the electric valve and motor are electrically connected to the controller.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. After the motor is started, the present invention drives the first bevel gear to rotate, which in turn drives the second and third bevel gears to rotate. The first and third bevel gears rotate in opposite directions, which in turn causes the sleeve shaft and the stirring shaft to rotate in opposite directions, and the first and second stirring rods to rotate in opposite directions. This allows the material to be stirred from different directions, enabling faster mixing of the material. This solves the problem that in the existing reaction vessel for amino resin preparation, the stirring blades on the stirring shaft only rotate in one direction, causing the material inside the vessel to always rotate in one direction, resulting in a slow mixing speed and reduced efficiency in amino resin preparation.

[0016] 2. After the stirring reaction is complete, open the electric valve on the discharge port to discharge the material. At this time, the residual material on the inner wall of the reactor is scraped off by the installation of the first and second scrapers to avoid waste and improve the practicality of the device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a reaction vessel for preparing amino resin according to the present invention;

[0018] Figure 2 This is a schematic cross-sectional view of a reaction vessel for preparing amino resin according to the present invention.

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the second stirring rod and the first stirring rod of this utility model;

[0020] Figure 4 For the present utility model Figure 2 Enlarged schematic diagram of the structure at point A;

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the first and second scrapers of this utility model.

[0022] In the diagram: 1. Kettle body; 2. Inlet; 3. Outlet; 4. Support rod; 5. Support platform; 6. U-shaped frame; 7. Motor; 8. Stirring shaft; 9. First arc rod; 10. First stirring rod; 11. First bevel gear; 12. Second bevel gear; 13. Third bevel gear; 14. Sleeve shaft; 15. Second arc rod; 16. Second stirring rod; 17. First connecting rod; 18. First scraper; 19. Second scraper. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides, for example Figures 1-5 The reactor for preparing amino resin shown includes a reactor body 1. A support platform 5 is fixedly installed at the middle of the top of the reactor body 1. A U-shaped frame 6 is fixedly installed on the top of the support platform 5. A motor 7 is fixedly installed on the top of the U-shaped frame 6. The drive end of the motor 7 is rotatably connected to the U-shaped frame 6 through a first bearing. A stirring shaft 8 is fixedly connected to the drive end of the motor 7. A first arc rod 9 is fixedly connected to one end of the stirring shaft 8 that passes through the support platform 5 and extends into the interior of the reactor body 1. A first stirring rod 10 is fixedly installed at the end of the first arc rod 9.

[0025] In use, the present invention has a feed inlet 2 fixedly installed at the top of the vessel body 1 and a discharge outlet 3 fixedly installed at the bottom of the vessel body 1. Both the discharge outlet 3 and the feed inlet 2 are equipped with electric valves. The material is fed into the interior of the vessel body 1 through the feed inlet 2. The motor 7 is started to drive the stirring shaft 8, the first arc rod 9 and the first stirring rod 10 to rotate, so as to stir the material inside the vessel body 1. After the stirring reaction is completed, the electric valve on the discharge outlet 3 is opened to discharge the material.

[0026] Considering that the first arc rod 9 and the first stirring rod 10 only rotate in one direction, causing the material inside the vessel 1 to always rotate in one direction, resulting in a slow mixing speed between materials and reduced amino resin preparation efficiency, this utility model has a second bevel gear 12 rotatably mounted on the side of the U-shaped frame 6 via a second bearing, a first bevel gear 11 fixedly mounted on the outer ring of the stirring shaft 8, and a sleeve shaft 14 movably mounted on the outer ring of the stirring shaft 8. The sleeve shaft 14 is rotatably connected to the support platform 5 via a third bearing, and the top of the sleeve shaft 14... A third bevel gear 13 is fixedly installed on the outer ring of the part. A second bevel gear 12 is located between the first bevel gear 11 and the third bevel gear 13. Both the first bevel gear 11 and the third bevel gear 13 mesh with the second bevel gear 12. A second arc rod 15 is fixedly installed on the outer ring of one end of the sleeve shaft 14 that extends into the interior of the vessel body 1. A second stirring rod 16 is fixedly installed at the end of the second arc rod 15. The straight-line distance from the second stirring rod 16 to the stirring shaft 8 is half the straight-line distance from the first stirring rod 10 to the stirring shaft 8.

[0027] Specifically, after starting the motor 7, it drives the first bevel gear 11 to rotate, which in turn drives the second bevel gear 12 and the third bevel gear 13 to rotate. The first bevel gear 11 and the third bevel gear 13 rotate in opposite directions, which in turn causes the sleeve shaft 14 and the stirring shaft 8 to rotate in opposite directions, and consequently causes the first stirring rod 10 and the second stirring rod 16 to rotate in opposite directions. This allows the material to be stirred from different directions, enabling faster mixing of the material. This solves the problem that in existing amino resin preparation reactors, the stirring blades on the stirring shaft 8 only rotate in one direction, causing the material inside the reactor body 1 to always rotate in one direction, resulting in a slow mixing speed and reduced amino resin preparation efficiency.

[0028] Furthermore, there are two of each of the first arc rod 9 and the second arc rod 15. The two first arc rods 9 are symmetrically distributed about the vertical center line of the stirring shaft 8, and the two second arc rods 15 are symmetrically distributed about the vertical center line of the sleeve shaft 14. This arrangement accelerates the mixing speed of the materials.

[0029] Furthermore, a first connecting rod 17 is fixedly provided on the side of the first stirring rod 10, and a first scraper 18 is fixedly provided at the end of the first connecting rod 17. The first scraper 18 is in movable contact with the inner wall of the vessel body 1. The curvature of the first arc rod 9 is the same as the curvature of the inner wall of the bottom of the vessel body 1. A second connecting rod is fixedly provided on the side of the first arc rod 9, and a second scraper 19 is fixedly provided at the end of the second connecting rod. The second scraper 19 is in movable contact with the inner wall of the bottom of the vessel body 1.

[0030] After the stirring reaction is completed, open the electric valve on the discharge port 3 to discharge the material. At this time, the residual material on the inner wall of the vessel body 1 is scraped off by the installation of the first scraper 18 and the second scraper 19 to avoid waste and improve the practicality of the device.

[0031] Furthermore, three support rods 4 are fixedly installed on the outer wall of the vessel body 1 in a ring-shaped and uniform arrangement. A rubber plate is fixedly installed at the bottom of the support rods 4 to support the device.

[0032] Furthermore, a controller is provided on the outer wall of the vessel body 1. The electric valve and motor 7 are electrically connected to the controller, and the opening and closing operations of the electric valve and motor 7 are controlled by the controller.

[0033] Working principle: During use, the material is fed into the vessel body 1 through the feed inlet 2. The motor 7 is started, driving the stirring shaft 8, the first arc rod 9, and the first stirring rod 10 to rotate, stirring the material inside the vessel body 1. In addition, after starting the motor 7, the first bevel gear 11 is driven to rotate, which in turn drives the second bevel gear 12 and the third bevel gear 13 to rotate. The rotation directions of the first bevel gear 11 and the third bevel gear 13 are opposite, which in turn causes the sleeve shaft 14 and the stirring shaft 8 to rotate in opposite directions, and thus causes the first stirring rod 10 and the second stirring rod 16 to rotate in opposite directions. This stirs the material from different directions, allowing the material to mix more quickly. After the stirring reaction is completed, the electric valve on the discharge port 3 is opened to discharge the material. At this time, the residual material on the inner wall of the vessel body 1 is scraped off by the installation of the first scraper 18 and the second scraper 19 to avoid waste.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A reaction vessel for preparing amino resin comprising a vessel body (1), characterized in that: The middle part of the top of the kettle body (1) is fixedly provided with a supporting table (5), the top of the supporting table (5) is fixedly provided with a U-shaped frame (6), the top of the U-shaped frame (6) is fixedly provided with a motor (7), the driving end of the motor (7) is rotatably connected with the U-shaped frame (6) through a first bearing, and the driving end of the motor (7) is fixedly connected with a stirring shaft (8), one end of the stirring shaft (8) penetrating through the supporting table (5) and extending into the kettle body (1) is fixedly connected with a first arc rod (9), and the end of the first arc rod (9) is fixedly provided with a first stirring rod (10). The side of the U-shaped frame (6) is rotatably provided with a second bevel gear (12) through a second bearing, the outer ring of the stirring shaft (8) is fixedly provided with a first bevel gear (11), the outer ring of the stirring shaft (8) movably sleeved with a sleeve shaft (14), the sleeve shaft (14) is rotatably connected with the supporting table (5) through a third bearing, the outer ring of the top of the sleeve shaft (14) is fixedly provided with a third bevel gear (13), the second bevel gear (12) is located between the first bevel gear (11) and the third bevel gear (13), and the first bevel gear (11) and the third bevel gear (13) are meshed with the second bevel gear (12), and the outer ring of one end of the sleeve shaft (14) extending into the kettle body (1) is fixedly provided with a second arc rod (15), and the end of the second arc rod (15) is fixedly provided with a second stirring rod (16), and the straight line distance from the second stirring rod (16) to the stirring shaft (8) is half of the straight line distance from the first stirring rod (10) to the stirring shaft (8).

2. The reaction vessel for preparing amino resin according to claim 1, characterized in that: The first arc rod (9) and the second arc rod (15) are provided with two, the two first arc rods (9) are symmetrically distributed about the vertical center line of the stirring shaft (8), and the two second arc rods (15) are symmetrically distributed about the vertical center line of the sleeve shaft (14).

3. The reaction vessel for preparing amino resin according to claim 2, wherein: The top of the kettle body (1) is fixedly provided with a feeding port (2), the bottom of the kettle body (1) is fixedly provided with a discharging port (3), and the discharging port (3) and the feeding port (2) are both provided with electric valves.

4. The reaction vessel for preparing amino resin according to claim 3, wherein: The side of the first stirring rod (10) is fixedly provided with a first connecting rod (17), the end of the first connecting rod (17) is fixedly provided with a first scraper (18), and the first scraper (18) and the inner wall of the kettle body (1) are movably attached.

5. The reaction vessel for preparing amino resin according to claim 4, wherein: The curvature of the first arc rod (9) is the same as that of the inner wall of the bottom of the kettle body (1), the side of the first arc rod (9) is fixedly provided with a second connecting rod, the end of the second connecting rod is fixedly provided with a second scraper (19), and the second scraper (19) and the inner wall of the bottom of the kettle body (1) are movably attached.

6. The reaction vessel for preparing amino resin according to claim 5, wherein: The outer side wall of the kettle body (1) is fixedly provided with three support rods (4) arranged in a ring shape, and the bottom of the support rod (4) is fixedly provided with a rubber plate.

7. The reaction vessel for preparing amino resin according to claim 6, wherein: The outer side wall of the kettle body (1) is provided with a controller, and the electric valves and the motor (7) are electrically connected with the controller.

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