Reaction kettle for preparing high solid content styrene-butadiene latex

Abstract

The utility model discloses a reaction kettle for preparing high solid content butyl benzene latex, specifically relates to reaction kettle technical field, including kettle body and the sealing cover of fixed at the top of kettle body, the sealing cover top is equipped with the storage cavity, one side of storage cavity bottom wall is equipped with the drop liquid subassembly of fixed, the drop liquid subassembly includes drop liquid shell, the inside rotation of drop liquid shell is equipped with the carousel, the carousel inside is equipped with the gyro wheel, the carousel with drop liquid shell between is equipped with the elastic hose, the elastic hose one end penetrates sealing cover bottom and is connected with the liquid outlet pipe, the sealing cover bottom rotation is connected with the round plate. The utility model discloses through drive mechanism drive round plate and carousel synchronous rotation, adds the mixed monomer to the kettle body inside drop while, to the kettle mixed liquid is stirred to accelerate the reaction, annular water pipe evenly dispersed mixed monomer, avoid local concentration too high, in addition, the mixing mechanism can be fully stirred to the liquid in the kettle, effectively promotes the mixing effect and production efficiency of high solid content butyl benzene latex.

Description

Technical Field

[0001] This utility model relates to the field of reaction vessel technology, and more specifically to a reaction vessel for preparing high solids content styrene-butadiene latex. Background Technology

[0002] Styrene-butadiene latex is a stable emulsion formed by the low-temperature polymerization of butadiene and styrene. It possesses adhesiveness, stability, and fluidity. Depending on the styrene content, emulsifier, and polymerization temperature, there are various varieties, each with different properties and applications. Currently, styrene-butadiene latex production is generally carried out in a reaction vessel. For example, the existing technology disclosure number CN223055574U describes a reaction vessel for styrene-butadiene latex production. This invention features separate solid and liquid feeding hoppers for the separate addition of solid and liquid additives, employing a closed feeding method. This avoids the high-temperature overflow caused by pressure differences inside and outside the reaction vessel in traditional feeding methods, thus reducing production risks.

[0003] However, the existing technology described above still has the following problems: when adding the mixed monomers dropwise into the reactor, a suction pump needs to be added to the reactor to transport the mixed monomers for reaction. When the mixed monomers output by the suction pump flow in one place, it will cause excessive local concentration, affecting the stirring effect and thus affecting the production efficiency of high solids content styrene-butadiene latex. Based on this, the present invention provides a reactor with high production efficiency for preparing high solids content styrene-butadiene latex. Utility Model Content

[0004] To overcome the aforementioned deficiencies in the prior art, this utility model provides a reaction vessel for preparing high-solids-content styrene-butadiene latex. A driving mechanism drives a circular plate and a turntable to rotate synchronously. While adding mixed monomers dropwise into the vessel, the mixture is stirred to accelerate the reaction. An annular water pipe evenly disperses the mixed monomers, preventing excessively high local concentrations. Furthermore, the stirring mechanism thoroughly stirs the liquid within the vessel, effectively improving the mixing effect and production efficiency of the high-solids-content styrene-butadiene latex, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a reaction vessel for preparing high-solids-content styrene-butadiene latex, comprising a vessel body and a sealing cover fixed to the top of the vessel body. The top of the sealing cover is provided with a storage cavity, and a dripping assembly is fixedly provided on one side of the bottom wall of the storage cavity. The dripping assembly includes a dripping shell, a turntable rotatably provided inside the dripping shell, a roller provided inside the turntable, an elastic hose provided between the turntable and the dripping shell, one end of the elastic hose passing through the bottom of the sealing cover and connected to a liquid outlet pipe, a circular plate rotatably connected to the bottom of the sealing cover, a driving mechanism for driving the circular plate and the turntable to rotate inside the storage cavity, and a stirring mechanism provided at the bottom of the circular plate.

[0006] In a preferred embodiment, the bottom of the liquid outlet pipe has multiple outlets arranged in a ring array.

[0007] In a preferred embodiment, the driving mechanism includes a bracket fixed to the bottom wall of the storage cavity, a rotating rod passing through the bracket near the drip shell, one end of the rotating rod passing through the drip shell and fixed to the turntable, a transmission rod rotatably connected to the bottom wall of the bracket, the bottom end of the transmission rod passing through the sealing cover and fixed to the top of the circular plate, and the transmission rod and the rotating rod being connected by a bevel gear set.

[0008] In a preferred embodiment, a motor is fixedly installed at the center of the top of the bracket, and the bottom end of the output shaft of the motor passes through the bracket and is fixed to the top end of the transmission rod.

[0009] In a preferred embodiment, the circular plate has a receiving cavity inside, and the stirring mechanism includes two symmetrically distributed augers. The top ends of the two augers penetrate the circular plate and are rotatably connected to the top wall of the receiving cavity. A second motor is fixedly installed at the bottom center of the circular plate, and the output shaft of the second motor is connected to the two augers through a spur gear set.

[0010] In a preferred embodiment, a protective cover is fixedly provided at the bottom of the circular plate. The protective cover is fitted over the outside of the second motor. Both the protective cover and the circular plate are made of thermally conductive metal, which is used to conduct the heat of the second motor to the inside of the reactor and cool down together with the mixed monomer.

[0011] In a preferred embodiment, the vessel body is provided with a cooling partition for injecting coolant for cooling. Two symmetrically distributed liquid inlet pipes pass through the rear end of the vessel body, and a liquid drain pipe passes through the bottom of the vessel body. The liquid drain pipe and the two liquid inlet pipes are all connected to the cooling partition.

[0012] In a preferred embodiment, the top of the vessel body has multiple evenly distributed feeding valves, all of which are connected to the interior of the vessel body and are located on the outside of the sealing cover. The multiple feeding valves facilitate the addition of different types of materials.

[0013] The technical effects and advantages of this utility model are as follows: 1. This utility model uses a drive mechanism to drive the circular plate and the turntable to rotate synchronously. While adding the mixed monomers into the reactor, the mixture in the reactor is stirred to accelerate the reaction. At the same time, the mixed monomers are evenly dispersed by the use of a ring water pipe, avoiding the impact of excessively high local concentrations on the reaction effect. In addition, the stirring mechanism at the bottom of the circular plate can fully stir the liquid in the reactor, effectively improving the mixing effect and production efficiency of high solids content styrene-butadiene latex.

[0014] 2. The two augers are driven to rotate synchronously by the motor and the spur gear set. While the augers rotate, they also rotate with the circular plate, thereby conveying the liquid at the bottom of the inner cavity of the vessel upward, avoiding a large amount of liquid from settling at the bottom and affecting the mixing effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the vessel body and sealing cap of this utility model; Figure 3 This is a cross-sectional view of the sealing cap of this utility model; Figure 4 This is a schematic diagram of the dripping component structure of this utility model; Figure 5 This is a schematic diagram of the stirring mechanism of this utility model; Figure 6 This is a bottom view of the liquid outlet pipe of this utility model.

[0016] The attached figures are labeled as follows: 1. vessel body; 2. sealing cover; 3. storage cavity; 4. dripping assembly; 5. circular plate; 6. drive mechanism; 7. stirring mechanism; 8. receiving cavity; 9. protective cover; 10. cooling partition; 11. liquid inlet pipe; 12. liquid outlet pipe; 13. feeding valve; 41. Dropper housing; 42. Turntable; 43. Roller; 44. Flexible hose; 45. Discharge pipe; 46. Water outlet; 61. Bracket; 62. Rotating rod; 63. Transmission rod; 64. Bevel gear set; 65. Motor 1; 71. Screwdriver; 72. Motor II; 73. Spur gear set. Detailed Implementation

[0017] 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.

[0018] Refer to the instruction manual appendix Figures 1-6This utility model provides a reaction vessel for preparing high solids content styrene-butadiene latex, including a vessel body 1 and a sealing cover 2 fixed to the top of the vessel body 1. The top of the sealing cover 2 is provided with a storage cavity 3. A dripping assembly 4 is fixedly provided on one side of the bottom wall of the storage cavity 3. The dripping assembly 4 includes a dripping shell 41. A turntable 42 is rotatably provided inside the dripping shell 41. A roller 43 is provided inside the turntable 42. An elastic hose 44 is provided between the turntable 42 and the dripping shell 41. One end of the elastic hose 44 passes through the bottom of the sealing cover 2 and is connected to an outlet pipe 45. Specifically, the bottom of the outlet pipe 45 has multiple water outlets 46 distributed in a ring array.

[0019] The bottom of the sealing cover 2 is rotatably connected to a circular plate 5. The storage cavity 3 is provided with a drive mechanism 6 for driving the circular plate 5 and the turntable 42 to rotate. The bottom of the circular plate 5 is provided with a stirring mechanism 7. The top of the vessel body 1 is provided with multiple evenly distributed feeding valves 13. All feeding valves 13 are connected to the inside of the vessel body 1, and all feeding valves 13 are located on the outside of the sealing cover 2.

[0020] In actual use, a portion of the mixed monomers for producing styrene-butadiene latex, along with deionized water and emulsifier, are added into the reactor body 1 through the feeding valve 13. Then, the stirring mechanism 7 at the bottom of the circular plate 5 is used for stirring. After stirring for a period of time, one end of the elastic hose 44 is connected to the container containing the mixed monomers. The drive mechanism 6 drives the turntable 42 to rotate. The rollers 43 on the turntable 42 squeeze the elastic hose 44 to deliver the remaining mixed monomers. The mixed monomers are evenly sprinkled through multiple outlets 46 at the bottom of the annular water pipe, which can avoid excessively high local concentrations that could affect the reaction effect. Furthermore, while driving the turntable 42, the drive mechanism 6 can also drive the circular plate 5 to rotate together. When the circular plate 5 drives the stirring mechanism 7 to rotate inside the reactor, the stirring effect can be further improved, thereby increasing the production efficiency of high-solids-content styrene-butadiene latex.

[0021] Refer to the instruction manual appendix Figure 2 and Figure 3 The driving mechanism 6 includes a bracket 61 fixed to the bottom wall of the storage cavity 3. A rotating rod 62 passes through the bracket 61 near the drip shell 41. One end of the rotating rod 62 passes through the drip shell 41 and is fixed to the turntable 42. A transmission rod 63 is rotatably connected to the bottom wall of the bracket 61. The bottom end of the transmission rod 63 passes through the sealing cover 2 and is fixed to the top of the circular plate 5. The transmission rod 63 and the rotating rod 62 are connected by a bevel gear set 64. A motor 65 is fixed at the top center of the bracket 61. The bottom end of the output shaft of the motor 65 passes through the bracket 61 and is fixed to the top end of the transmission rod 63.

[0022] The transmission rod 63 is driven to rotate by a motor 65. The transmission rod 63 and the rotating rod 62 are driven by a bevel gear set 64 composed of two bevel gears, so that they can rotate together. While adding the mixed monomer, they are stirred at the same time, which greatly improves the production efficiency. Moreover, only one motor 65 is needed, which can reduce the operating cost of this device to a certain extent.

[0023] like Figure 5 As shown, the circular plate 5 has a receiving cavity 8 inside, and the stirring mechanism 7 includes two symmetrically distributed augers 71. The top ends of the two augers 71 penetrate the circular plate 5 and are rotatably connected to the top wall of the receiving cavity 8. A second motor 72 is fixedly installed at the bottom center of the circular plate 5. The output shaft of the second motor 72 is connected to the two augers 71 through a spur gear set 73.

[0024] Furthermore, a protective cover 9 is fixedly provided at the bottom of the circular plate 5. The protective cover 9 is fitted over the outside of the motor 72. Both the protective cover 9 and the circular plate 5 are made of thermally conductive metal.

[0025] The two screw conveyors 71 are driven to rotate together by the motor 72 and the spur gear set 73. As the screw conveyor 71 rotates, it follows the circular plate 5 and can transport the liquid at the bottom of the inner cavity of the vessel body 1 upward, so as to avoid a large amount of liquid sinking to the bottom and affecting the mixing effect. In addition, the protective cover 9 and the circular plate 5 are made of heat-conducting metal, which can conduct the heat of the motor 72 to the liquid and dissipate along with the heat of the liquid.

[0026] like Figure 2 As shown, the vessel body 1 is provided with a cooling partition 10 inside for injecting coolant for cooling. Two symmetrically distributed liquid inlet pipes 11 pass through the rear end of the vessel body 1, and a liquid drain pipe 12 passes through the bottom of the vessel body 1. The liquid drain pipe 12 and the two liquid inlet pipes 11 are all connected to the cooling partition 10.

[0027] Coolant is supplied to the cooling compartment 10 through two inlet pipes 11. The coolant can quickly absorb heat during the flow process. Then, the coolant that has absorbed heat flows out from the drain pipe 12. By connecting both the inlet pipe 11 and the drain pipe 12 to the coolant circulation equipment, circulating cooling can be achieved. Since this is existing technology, it will not be described in detail here.

[0028] Finally: 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 reaction vessel for preparing high-solids-content styrene-butadiene latex, comprising a vessel body (1) and a sealing cap (2) fixed to the top of the vessel body (1), characterized in that: The top of the sealing cover (2) is provided with a storage cavity (3); A dripping assembly (4) is fixedly provided on one side of the bottom wall of the storage cavity (3). The dripping assembly (4) includes a dripping shell (41). A turntable (42) is rotatably provided inside the dripping shell (41). A roller (43) is provided inside the turntable (42). An elastic hose (44) is provided between the turntable (42) and the dripping shell (41). One end of the elastic hose (44) passes through the bottom of the sealing cap (2) and is connected to an outlet pipe (45). The bottom of the sealing cover (2) is rotatably connected to a circular plate (5), and the storage cavity (3) is provided with a drive mechanism (6) for driving the circular plate (5) and the turntable (42) to rotate. The bottom of the circular plate (5) is provided with a stirring mechanism (7).

2. The reaction vessel for preparing high-solids-content styrene-butadiene latex according to claim 1, characterized in that: The bottom of the liquid outlet pipe (45) is provided with multiple water outlets (46) arranged in a ring array.

3. The reaction vessel for preparing high-solids-content styrene-butadiene latex according to claim 1, characterized in that: The drive mechanism (6) includes a bracket (61) fixed to the bottom wall of the storage cavity (3). A rotating rod (62) passes through the bracket (61) near the drip shell (41). One end of the rotating rod (62) passes through the drip shell (41) and is fixed to the turntable (42). A transmission rod (63) is rotatably connected to the bottom wall of the bracket (61). The bottom end of the transmission rod (63) passes through the sealing cover (2) and is fixed to the top of the circular plate (5). The transmission rod (63) and the rotating rod (62) are connected by a bevel gear set (64).

4. The reaction vessel for preparing high-solids-content styrene-butadiene latex according to claim 3, characterized in that: A motor (65) is fixedly installed at the top center of the bracket (61). The bottom end of the output shaft of the motor (65) passes through the bracket (61) and is fixed to the top end of the transmission rod (63).

5. The reaction vessel for preparing high-solids-content styrene-butadiene latex according to claim 1, characterized in that: The circular plate (5) has a storage cavity (8) inside. The stirring mechanism (7) includes two symmetrically distributed augers (71). The tops of the two augers (71) pass through the circular plate (5) and are rotatably connected to the top wall of the storage cavity (8). A second motor (72) is fixedly installed at the bottom center of the circular plate (5). The output shaft of the second motor (72) is connected to the two augers (71) through a spur gear set (73).

6. The reaction vessel for preparing high-solids-content styrene-butadiene latex according to claim 5, characterized in that: The bottom of the circular plate (5) is fixedly provided with a protective cover (9), which is sleeved on the outside of the motor (72). Both the protective cover (9) and the circular plate (5) are made of thermally conductive metal.

7. The reaction vessel for preparing high-solids-content styrene-butadiene latex according to claim 1, characterized in that: The vessel body (1) is provided with a cooling partition (10) for injecting coolant for cooling. Two symmetrically distributed liquid inlet pipes (11) pass through the rear end of the vessel body (1), and a drain pipe (12) passes through the bottom of the vessel body (1). The drain pipe (12) and the two liquid inlet pipes (11) are all connected to the cooling partition (10).

8. The reaction vessel for preparing high-solids-content styrene-butadiene latex according to claim 1, characterized in that: The top of the vessel body (1) is permeated with multiple uniformly distributed feeding valves (13), all of which are connected to the interior of the vessel body (1) and are located on the outside of the sealing cover (2).

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