Reaction kettle for producing styrene-butadiene latex

Abstract

The utility model relates to a reaction kettle, in particular to a reaction kettle for styrene-butadiene latex production, which comprises a reaction kettle, a solid feeding bin and a liquid feeding bin, a delivery pipe is arranged in the solid feeding bin and communicated with the reaction kettle, a discharge port is arranged at the inner end of the delivery pipe, and a screw rod is rotatably connected in the delivery pipe. The screw rod supplies energy through a servo motor fixed to the outer wall of the solid feeding bin, a water pump is arranged in the liquid feeding bin, the output end of the water pump is connected with the reaction kettle through a water pipe, and a spray head is arranged on the portion, located in the reaction kettle, of the water pipe. The solid feeding bin and the liquid feeding bin are arranged to feed solid and liquid additives respectively, and a closed feeding mode is adopted, so that the condition of high-temperature overflow caused by pressure difference inside and outside the reaction kettle in the traditional feeding process is avoided.

Description

Technical Field

[0001] The utility model relates to a reaction kettle, in particular to a reaction kettle for producing styrene-butadiene latex. Background Art

[0002] Styrene-butadiene latex is a milky white emulsion copolymerized from butadiene and styrene, with excellent film-forming property, adhesiveness, water resistance and mechanical stability. It is widely used in fields such as highways, construction, papermaking, and textiles as a modifier, adhesive and coating material to improve the performance and durability of materials. Its performance and uses vary depending on conditions such as styrene content and emulsifier.

[0003] During the raw material stirring process of existing medium and small-sized styrene-butadiene latex reaction kettles, some styrene-butadiene latex needs to add auxiliary materials midway according to different processes. During the process of adding auxiliary materials, it can only be added from the feeding port. Since the tank body is in a high-temperature state, hot air is relatively easy to rush towards the operator instantly when the cover is opened, affecting the health of the operator. Summary of the Utility Model

[0004] In order to overcome the defect that when adding materials midway in an existing styrene-butadiene latex reaction kettle, the internal materials are ejected due to the internal and external pressure difference, resulting in a safety risk, the purpose of the utility model is to provide a reaction kettle for producing styrene-butadiene latex.

[0005] The technical solution is: a reaction kettle for producing styrene-butadiene latex, including a reaction kettle, a solid feeding bin and a liquid feeding bin. A conveying pipe is arranged inside the solid feeding bin and is communicated with the reaction kettle. The inner end of the conveying pipe is provided with a discharge port. A spiral rod is rotatably connected inside the conveying pipe, and the spiral rod is powered by a servo motor fixed on the outer wall of the solid feeding bin. A water pump is arranged inside the liquid feeding bin, and the output end of the water pump is connected with the reaction kettle through a water pipe. A nozzle is arranged on the part of the water pipe located inside the reaction kettle.

[0006] As a further preferred solution, it further includes a mounting bracket. The mounting bracket is fixedly connected to the bottoms of the solid feeding bin and the liquid feeding bin. A tripod is arranged at the end of the mounting bracket, and the tripod is fixedly connected to the side of the reaction kettle.

[0007] As a further preferred solution, an inclined guide plate is arranged on the inner wall of the liquid feeding bin.

[0008] As a further preferred solution, it further includes a top cover, and the liquid feeding bin is provided with a top cover.

[0009] As a further preferred solution, it further includes a scraper. The scraper is slidably connected inside the liquid feeding bin and is in frictional contact with its inner wall. The scraper is provided with a longitudinal handle, and the longitudinal handle slidably penetrates through the top cover.

[0010] As a further preferred solution, it further includes an observation window, and the solid feeding bin and the liquid feeding bin are both provided with observation windows.

[0011] As a further preferred solution, it further includes a waste box, and the waste box is slidably connected to the bottom of the mounting bracket.

[0012] The utility model has the following advantages: The solid feeding bin and the liquid feeding bin are provided to separately feed the solid and liquid additives. The closed feeding method is adopted to avoid the high-temperature overflow caused by the pressure difference inside and outside the reaction kettle in the traditional feeding, reducing the production risk. Description of the Drawings

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the servo motor and the screw rod of the utility model.

[0015] Figure 3 It is a three-dimensional structural schematic diagram of the water pipe machine and the nozzle of the utility model.

[0016] Figure 4 It is a three-dimensional structural schematic diagram of the liquid feeding bin and the scraper of the utility model.

[0017] Names of the reference numerals in the figure: 1 - reaction kettle, 2 - conveying pipe, 3 - solid feeding bin, 4 - discharge port, 5 - screw rod, 6 - servo motor, 7 - mounting bracket, 8 - liquid feeding bin, 801 - liquid guide plate, 9 - water pipe, 10 - water pump, 11 - nozzle, 12 - scraper, 13 - top cover, 14 - observation window, 15 - waste box. Detailed Embodiments

[0018] The following further illustrates the technical solution with specific embodiments. It should be noted that: The words indicating directions such as up, down, left, and right mentioned in this article are only for the positions of the shown structures in the corresponding drawings. The serial numbers assigned to the components in this article, such as: first, second, etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. And the connections, couplings mentioned in this application, unless otherwise specified, all include direct and indirect connections (couplings).

[0019] Embodiment: A reaction kettle for the production of styrene-butadiene latex, as Figures 1 - 4As shown in the figure, it includes a reaction kettle 1, a solid feeding bin 3 and a liquid feeding bin 8. The mounting bracket 7 is fixedly connected to the bottoms of the solid feeding bin 3 and the liquid feeding bin 8. A tripod is arranged at the end of the mounting bracket 7, and the tripod is fixedly connected to the side of the reaction kettle 1. A conveying pipe 2 is arranged inside the solid feeding bin 3 and is communicated with the reaction kettle 1. An outlet 4 is opened at the inner end of the conveying pipe 2. A screw rod 5 is rotatably connected inside the conveying pipe 2, and the screw rod 5 is powered by a servo motor 6 fixed on the outer wall of the solid feeding bin 3. A water pump 10 is arranged inside the liquid feeding bin 8. The output end of the water pump 10 is connected to the reaction kettle 1 through a water pipe 9. A spray head 11 is opened at the part of the water pipe 9 located inside the reaction kettle 1. An inclined guide plate 801 is arranged on the inner wall of the liquid feeding bin 8, and the liquid feeding bin 8 is provided with a top cover 13.

[0020] As Figure 4 shown in the figure, it further includes a scraper 12. The scraper 12 is slidably connected inside the liquid feeding bin 8 and is in frictional contact with its inner wall. The scraper 12 is provided with a longitudinal handle, and the longitudinal handle slidably passes through the top cover 13.

[0021] As Figure 1 shown in the figure, it further includes an observation window 14. Observation windows 14 are opened on both the solid feeding bin 3 and the liquid feeding bin 8.

[0022] As Figure 1 shown in the figure, it further includes a waste box 15. The waste box 15 is slidably connected to the bottom of the mounting bracket 7.

[0023] Working principle: Put the styrene-butadiene latex raw material into the reaction kettle 1 for processing. When additives need to be added during the production process, solid additives can be put into the solid feeding bin 3, and liquid additives can be put into the liquid feeding bin 8. Among them, turn on the servo motor 6 to drive the screw rod to rotate. The screw rod can evenly convey the solid additives in the solid feeding bin 3, so that the solid additives enter the reaction kettle 1 from the outlet 4 and are evenly added to the styrene-butadiene latex raw material. Turn on the water pump 10 to pump the liquid additives in the liquid feeding bin 8 into the water pipe 9, and then the liquid additives are evenly sprayed onto the styrene-butadiene latex raw material by the atomizing spray head 11, reducing the risk of hot gas gushing caused by the pressure difference inside and outside the reaction kettle 1 in traditional production.

[0024] Although the present invention has been described in detail with reference to the above embodiments, it is obvious to those skilled in the art through the present disclosure that various changes or modifications can be made to the present invention without departing from the principle and spirit scope of the present invention defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, rather than to limit the present invention, and the scope of protection is defined by the content of the claims.

Claims

1. A reactor for the production of styrene-butadiene latex, characterized in that: It includes a reactor (1), and the reactor (1) is communicated with a solid feed bin (3) through an internal conveying pipe (2); An outlet (4) is opened at the inner end of the conveying pipe (2); A screw rod (5) is rotatably connected inside the conveying pipe (2); The screw rod (5) is powered by a servo motor (6) fixed on the outer wall of the solid feed bin (3). Starting the servo motor (6) to drive the screw rod (5) to rotate can convey the materials in the solid feed bin (3) into the reactor (1); The reactor (1) is connected to a liquid feed bin (8); A water pump (10) is built in the liquid feed bin (8); The output end of the water pump (10) is connected to the reactor (1) through a water pipe (9). Starting the water pump (10) pumps the liquid additive into the water pipe (9); The part of the water pipe (9) located inside the reactor (1) is provided with a spray head (11).

2. The reactor for producing styrene-butadiene latex according to claim 1, wherein: It also includes a mounting bracket (7), and the mounting bracket (7) supports the solid feed bin (3) and the liquid feed bin (8).

3. The reactor for producing styrene-butadiene latex according to claim 2, characterized in that: An inclined liquid guide plate (801) is provided on the inner wall of the liquid feed bin (8).

4. The reactor for the production of styrene-butadiene latex according to claim 3, characterized in that: It also includes a top cover (13), and the liquid feed bin (8) is provided with a top cover (13).

5. The reactor for the production of styrene-butadiene latex according to claim 4, characterized in that: It also includes a scraper (12), the scraper (12) is slidably connected inside the liquid feed bin (8) and is in frictional contact with its inner wall. The scraper (12) is provided with a longitudinal handle, and the longitudinal handle slidably passes through the top cover (13).

6. The reactor for the production of styrene-butadiene latex according to claim 5, characterized in that: It also includes an observation window (14), and the solid feed bin (3) and the liquid feed bin (8) are both provided with an observation window (14).

7. The reactor for the production of styrene-butadiene latex according to claim 6, characterized in that: It also includes a waste box (15), and the waste box (15) is slidably connected to the bottom of the mounting bracket (7).

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