Synthetic rubber halogenation reactor

Abstract

The utility model relates to the technical field of halogenation reactors, and discloses a synthetic rubber halogenation reactor which comprises a motor, a tank body and a machine frame used for connecting the motor and the tank body, a supporting frame used for supporting the tank body and the motor is installed at the lower end of the tank body and the lower end of the motor, and a coupler is fixedly arranged at the output end of the motor. A stirring shaft is rotationally arranged in the rack; a stirrer is fixedly arranged at one end, far away from the motor, of the stirring shaft; the stirrer is positioned in the tank body; a halogenated glue solution outlet is formed in the upper end face of the tank body, a glue solution inlet is formed in the end, away from the rack, of the tank body, and a chlorine gas inlet and a bromohexane inlet are formed in the two sides of the outer wall of the tank body respectively. According to the utility model, the steel lining polytetrafluoroethylene material is adopted, a single horizontal single-layer stirring paddle structure (single stirrer design) is adopted, and the equipment source does not need to be imported, so that the equipment is localized, the equipment purchase cost is lower, the reaction efficiency is higher than that of the original traditional stirrer, and the motor power of the stirrer is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of halogenation reactor technology, and in particular to a synthetic rubber halogenation reactor. Background Technology

[0002] The halogenation reactor is a crucial piece of equipment in the production of halogenated butyl rubber, where a butyl rubber hexane solution is reacted with liquid bromine to produce brominated rubber. Its main function is to pump the butyl hexane solution into the reactor using a screw pump, while simultaneously supplying liquid bromine to the reactor using a metering pump. The mixture is then thoroughly stirred and reacted within the reactor to produce brominated rubber.

[0003] In the process of developing this application, the inventors discovered the following problems with the existing technology: In the production of halogenated butyl rubber, the previously used halogenation reactor was imported equipment (two reactors in series), made of titanium, and the agitator adopted a vertical double-layer agitator. The equipment purchase cost was high, and the agitator power was high.

[0004] Therefore, those skilled in the art have provided a synthetic rubber halogenation reactor to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a synthetic rubber halogenation reactor. By using a steel-lined PTFE material and a single horizontal single-layer stirring paddle structure (single stirrer design), the equipment does not need to be imported, thus achieving domestic production and lower equipment procurement costs. At the same time, the reaction efficiency is higher than that of traditional stirrers, and the stirrer motor power is significantly reduced.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A synthetic rubber halogenation reactor includes a motor, a tank, and a frame for connecting the motor and the tank. The tank and the motor are supported by a support frame at their lower ends. A coupling is fixedly installed at the output end of the motor. A stirring shaft is rotatably installed inside the frame, and a stirrer is fixedly installed at the end of the stirring shaft away from the motor. The stirrer is located inside the tank.

[0008] The upper end face of the tank is equipped with a halogenated adhesive outlet, the end of the tank away from the frame is equipped with an adhesive inlet, and chlorine gas inlet and bromohexane inlet are respectively installed on both sides of the outer wall of the tank.

[0009] Furthermore, one end of the stirring shaft, on which the agitator is mounted, extends into the interior of the tank, while the other end of the stirring shaft is fixedly mounted on a coupling.

[0010] Furthermore, a flow-blocking sleeve is installed inside the frame at the connection between the stirring shaft and the tank, and a mechanical seal is installed on the side near the flow-blocking sleeve.

[0011] Furthermore, a protective liquid flushing port is provided inside the frame on one side of the front end of the stirring shaft.

[0012] Furthermore, the tank body is made of steel lined with PTFE material.

[0013] This utility model has the following beneficial effects:

[0014] This utility model proposes a synthetic rubber halogenation reactor, which changes the original design of two reactors in series and adopts a vertical double-layer agitator. The reactor uses steel lined with PTFE and a single horizontal single-layer agitator structure (single agitator design), so the equipment does not need to be imported, making it domestically produced and reducing equipment procurement costs. At the same time, the reaction efficiency is higher than that of the original traditional agitator, and the agitator motor power is significantly reduced. Attached Figure Description

[0015] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 2 For the present utility model Figure 1 A schematic diagram of a BB (Baby Window) diagram;

[0017] Figure 3 This is a side view of the structure of this utility model;

[0018] Figure 4 For the present utility model Figure 1 A partial structural diagram.

[0019] Legend:

[0020] 1. Motor; 2. Coupling; 3. Mechanical seal; 4. Cut-off sleeve; 5. Agitator; 6. Halogenated adhesive outlet; 7. Adhesive inlet; 8. Tank; 9. Support frame; 10. Agitator shaft; 11. Protective liquid flushing port; 12. Frame; 13. Chlorine inlet; 14. Bromohexane inlet. Detailed Implementation

[0021] 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.

[0022] Reference Figures 1-4An embodiment of this utility model is provided: a synthetic rubber halogenation reactor, including a motor 1, a tank 8 and a frame 12 for connecting the motor 1 and the tank 8. A support frame 9 for supporting the tank 8 and the motor 1 is installed at the lower end of the tank 8 and the motor 1. A coupling 2 is fixedly installed at the output end of the motor 1. A stirring shaft 10 is rotatably installed inside the frame 12, and a stirrer 5 is fixedly installed at the end of the stirring shaft 10 away from the motor 1. The stirrer 5 is located inside the tank 8.

[0023] One end of the stirring shaft 10, on which the agitator 5 is installed, extends into the interior of the tank body 8. The other end of the stirring shaft 10 is fixedly installed on the coupling 2. A protective liquid flushing port 11 is provided inside the frame 12 on one side of the front end of the stirring shaft 10. The tank body 8 is made of steel lined with PTFE material.

[0024] Specifically, since one end of the stirring shaft 10 is connected to the coupling 2, and the coupling 2 is fixed at the output end of the motor 1, the motor 1 has a power of 7.5KW. When the motor 1 starts, it drives the coupling 2 at the output end to rotate, causing the stirring shaft 10 to rotate as well. At the same time, since the agitator 5 is fixed on the stirring shaft 10 and located inside the tank 8, when the motor 1 drives the coupling 2 and the stirring shaft 10 to rotate, the agitator 5 connected to it is also driven to rotate, thus creating a stirring effect inside the tank 8. The butylhexane rubber solution is transported into the tank 1 of the reactor through a screw pump set, and liquid bromine is simultaneously transported to the reactor tank 1 using a metering pump. The reaction is fully mixed by the agitator 5 inside the reactor to produce brominated rubber.

[0025] Reference Figures 1-4 The upper end of the tank body 8 is equipped with a halogenated adhesive outlet 6, and the end of the tank body 8 away from the frame 12 is equipped with an adhesive inlet 7. Chlorine inlet 13 and bromohexane inlet 14 are respectively installed on both sides of the outer wall of the tank body 8.

[0026] Specifically, each raw material has a corresponding inlet to avoid cross-contamination caused by residues at the inlet, and to facilitate accurate feeding.

[0027] Reference Figure 1 Inside the frame 12, at the connection between the stirring shaft 10 and the tank 8, a flow-blocking sleeve 4 is installed, and a mechanical seal 3 is installed on the side close to the flow-blocking sleeve 4.

[0028] Specifically, it can achieve a seal between the stirring shaft 10 and the tank 1 to prevent liquid leakage, while ensuring the sealing and safety of the equipment; that is, the intercepting sleeve 4 plays the role of blocking leakage near the sealing line, while the mechanical seal 3 provides key sealing performance to ensure that the liquid will not leak out along the shaft during the stirring process, thus maintaining the normal operation of the equipment.

[0029] The reactor designed in this utility model is made of steel lined with PTFE and features a horizontal single-layer agitator structure (single agitator design). The agitator motor power is significantly reduced (the original agitator motor was 18.5kW, while the new agitator motor is 7.5kW). The new agitator can save 105,600 yuan in electricity costs per year.

[0030] Meanwhile, the new reactor has high reaction efficiency. The original reactor consumed 45 kg of bromine per ton of glue, while the new reactor consumes 40 tons of bromine per ton of glue. This saves 5 kg of bromine per ton of glue, and with an annual output of 60,000 tons, it saves approximately 18 million yuan in bromine procurement costs annually.

[0031] Working principle: When the reactor is in use, butylhexane adhesive is pumped into the reactor tank 8 through adhesive inlet 7 by screw pump set. Then, liquid bromine is pumped into the reactor tank 8 through bromoethane inlet 14 by metering pump, and motor 1 is started to work.

[0032] Since one end of the stirring shaft 10 is connected to the coupling 2, and the coupling 2 is fixed at the output end of the motor 1, when the motor 1 starts, it drives the coupling 2 at the output end to rotate, causing the stirring shaft 10 to rotate as well. At the same time, since the agitator 5 is fixed on the stirring shaft 10 and located inside the tank 8, when the motor 1 drives the coupling 2 and the stirring shaft 10 to rotate, the agitator 5 connected to it is also driven to rotate, thereby creating a stirring effect inside the tank 8. The reaction is fully mixed by the agitator 5 inside the reactor, producing brominated rubber.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 synthetic rubber halogenation reactor, comprising a motor (1), a tank (8), and a frame (12) for connecting the motor (1) and the tank (8), characterized in that: The lower end of the tank (8) and the motor (1) is equipped with a support frame (9) for supporting the tank (8) and the motor (1). The output end of the motor (1) is fixedly equipped with a coupling (2). The frame (12) is rotatably equipped with a stirring shaft (10), and a stirrer (5) is fixedly equipped at the end of the stirring shaft (10) away from the motor (1). The stirrer (5) is located inside the tank (8). The upper end face of the tank (8) is equipped with a halogenated adhesive outlet (6), the end of the tank (8) away from the frame (12) is equipped with an adhesive inlet (7), and the outer walls of the tank (8) are respectively equipped with a chlorine inlet (13) and a bromohexane inlet (14).

2. The synthetic rubber halogenation reactor according to claim 1, characterized in that: The stirring shaft (10) is installed at one end of the stirrer (5) and extends into the tank (8). The other end of the stirring shaft (10) is fixedly installed on the coupling (2).

3. The synthetic rubber halogenation reactor according to claim 1, characterized in that: Inside the frame (12), at the connection between the stirring shaft (10) and the tank (8), a flow-blocking sleeve (4) is installed, and a mechanical seal (3) is installed on the side near the flow-blocking sleeve (4).

4. The synthetic rubber halogenation reactor according to claim 1, characterized in that: The frame (12) is provided with a protective liquid flushing port (11) located on one side of the front end of the stirring shaft (10).

5. A synthetic rubber halogenation reactor according to claim 1, characterized in that: The tank body (8) is made of steel lined with PTFE material.

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