Temperature control device in emulsion polymerization reaction

Abstract

The utility model discloses a temperature control device in emulsion polymerization reaction, which comprises a stirring tank and a feeding port arranged on the left side of the upper end of the stirring tank, a temperature control mechanism and a stirring mechanism are respectively arranged in the stirring tank, and the temperature control mechanism comprises a temperature sensor, a heat conduction interlayer, a medium inlet, a medium outlet, a refrigerating coil, a liquid inlet and a liquid outlet. The stirring tank has the beneficial effects that the temperature sensor detects a temperature signal in the stirring tank in real time, and when the temperature is too low, heat transfer can be carried out between the heat conduction interlayer and the stirring tank, so that the temperature of emulsion in the stirring tank is increased, the area of the heat conduction interlayer is large, and heat conduction oil is uniformly and stably heated; the cooling coil is arranged in the stirring tank, so that unnecessary loss of energy sources is effectively reduced; and the driving motor drives the stirring shaft to rotate and swing to stir the emulsion in the stirring tank, so that the emulsion is in full contact with a refrigeration source or a heating source.

Description

Technical Field

[0001] The utility model relates to the technical field of polymerization reaction, in particular to a temperature control device in emulsion polymerization reaction. Background Art

[0002] Polymerization reaction is a chemical reaction, which is a process of converting low-molecular-weight monomers into high-molecular-weight polymers. Polymers have important properties such as plasticity, fiber-forming, film-forming, and high elasticity that low-molecular-weight monomers do not possess, and can be widely used as plastics, fibers, rubbers, coatings, adhesives, and other uses.

[0003] Emulsion polymerization is a process in which monomers are dispersed in water to form an emulsion with the help of an emulsifier and mechanical stirring. In the existing patent with the application number CN 202222157672.6, a temperature control device for emulsion polymerization reaction is disclosed. By setting a heating pipe and a cooling coil, and cooperating with a temperature sensor, the temperature of the reaction kettle is controlled. However, during the heating or refrigeration process, the emulsion in the reaction kettle cannot fully contact the refrigeration source or the heating source, resulting in poor heating or refrigeration effects, thus causing unnecessary energy loss.

[0004] It should be noted that the above content belongs to the technical cognition scope of the inventor and does not necessarily constitute the prior art. Summary of the Utility Model

[0005] Aiming at the above defects, the utility model provides a temperature control device in emulsion polymerization reaction to solve the problem of temperature control in emulsion polymerization reaction.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A temperature control device in emulsion polymerization reaction, including a stirring tank and a feeding port opened on the left side of the upper end of the stirring tank. A temperature control mechanism and a stirring mechanism are respectively arranged in the stirring tank;

[0008] The temperature control mechanism includes a temperature sensor, a heat conduction interlayer, a medium inlet, a medium outlet, a refrigeration coil, a liquid inlet, and a liquid discharge port. The temperature sensor is inserted on the right side of the upper end of the stirring tank. The heat conduction interlayer is arranged on the outer surface of the bottom of the stirring tank. The medium inlet is opened at the upper end of the heat conduction interlayer. The medium outlet is opened at the bottom of the heat conduction interlayer. The refrigeration coil is inserted at the bottom of the stirring tank. The liquid inlet is opened at one end of the refrigeration coil. The liquid discharge port is opened at the other end of the refrigeration coil.

[0009] Further, the stirring mechanism includes a fixing frame, a driving motor, a driving shaft, an inclined rod, a stirring shaft, stirring blades and a transmission shaft. The fixing frame is installed at the upper end of the stirring tank. The driving motor is installed at the upper end of the fixing frame with its rotating end facing vertically downward. The driving shaft is installed on the rotating end of the driving motor. The inclined rod is connected to the bottom of the driving shaft. The stirring shaft is obliquely inserted into the stirring tank and its upper end is connected to the inclined rod. The stirring blades are installed at the bottom of the stirring shaft. The transmission shaft is movably installed at the upper rear end of the stirring tank.

[0010] Further, a group of circular holes are formed in the fixing frame, and the stirring shaft is connected to the group of circular holes through a spherical connection.

[0011] Further, the driving shaft and the transmission shaft are connected by a transmission belt. A driving large gear is installed on the transmission shaft, and a transmission small gear meshing with the driving large gear is installed on the stirring shaft.

[0012] Further, the refrigeration coil is arranged in a conical shape, smaller at the upper end and larger at the lower end.

[0013] Further, a circular hole corresponding to the stirring shaft is formed at the upper end of the stirring tank, and a discharge port is formed at the center of the bottom.

[0014] The utility model provides a temperature control device in emulsion polymerization reaction, which has the following beneficial effects. By arranging a temperature control mechanism in the stirring tank and using a temperature sensor to detect the temperature signal in the stirring tank in real time, when the temperature is too low, heat transfer can occur between the heat conduction interlayer and the stirring tank, so that the temperature of the emulsion in the stirring tank rises. The heat conduction interlayer has a large area and the heat-conducting oil is heated evenly and stably. When the temperature is too high, external cold water is pumped into the refrigeration coil to cool the emulsion in the stirring tank. The refrigeration coil is arranged inside the stirring tank, effectively reducing unnecessary energy consumption; the stirring mechanism uses a driving motor to drive the stirring shaft to rotate and swing, stirring the emulsion in the stirring tank to make the emulsion fully contact with the refrigeration source or heat source. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the temperature control device in emulsion polymerization reaction described in the utility model.

[0016] Figure 2 It is a schematic diagram of the refrigeration coil described in the utility model.

[0017] Figure 3 It is a schematic diagram of the stirring mechanism described in the utility model.

[0018] Figure 4 It is a schematic diagram of the transmission shaft described in the utility model.

[0019] Figure 5 It is an external view of the stirring tank described in the utility model.

[0020] In the figure: 1, stirring tank; 2, feeding port; 3, temperature sensor; 4, heat conduction interlayer; 5, medium inlet; 6, medium outlet; 7, refrigeration coil; 8, liquid inlet; 9, liquid discharge port; 10, fixing bracket; 11, driving motor; 12, driving shaft; 13, inclined rod; 14, stirring shaft; 15, stirring paddle; 16, transmission shaft; 17, circular hole; 18, spherical surface; 19, transmission belt; 20, driving large gear; 21, transmission small gear; 22, round hole; 23, discharging port. Specific embodiments

[0021] The following combines the drawings to specifically describe the present utility model, as Figures 1-5 shown: A temperature control device in emulsion polymerization reaction, including a stirring tank 1 and a feeding port 2 opened on the left side of the upper end of the stirring tank 1. A temperature control mechanism and a stirring mechanism are respectively arranged in the stirring tank 1; the temperature control mechanism includes a temperature sensor 3, a heat conduction interlayer 4, a medium inlet 5, a medium outlet 6, a refrigeration coil 7, a liquid inlet 8 and a liquid discharge port 9. The temperature sensor 3 is inserted on the right side of the upper end of the stirring tank 1. The heat conduction interlayer 4 is arranged on the outer surface of the bottom of the stirring tank 1. The medium inlet 5 is opened at the upper end of the heat conduction interlayer 4. The medium outlet 6 is opened at the bottom of the heat conduction interlayer 4. The refrigeration coil 7 is inserted at the bottom inside the stirring tank 1. The liquid inlet 8 is opened at one end of the refrigeration coil 7. The liquid discharge port 9 is opened at the other end of the refrigeration coil 7; the stirring mechanism includes a fixing bracket 10, a driving motor 11, a driving shaft 12, an inclined rod 13, a stirring shaft 14, a stirring paddle 15 and a transmission shaft 16. The fixing bracket 10 is installed on the upper end of the stirring tank 1. The driving motor 11 is installed on the upper end of the fixing bracket 10, and the rotating end is vertically downward. The driving shaft 12 is installed on the rotating end of the driving motor 11. The inclined rod 13 is connected to the bottom of the driving shaft 12. The stirring shaft 14 is obliquely inserted into the stirring tank 1, and the upper end is connected to the inclined rod 13. The stirring paddle 15 is installed at the bottom of the stirring shaft 14. The transmission shaft 16 is movably installed at the rear end of the upper part of the stirring tank 1; a group of circular holes 17 are opened on the fixing bracket 10, and the stirring shaft 14 is connected to the group of circular holes 17 through a spherical surface 18; the driving shaft 12 and the transmission shaft 16 are driven and connected through a transmission belt 19. A driving large gear 20 is installed on the transmission shaft 16, and a transmission small gear 21 meshing with the driving large gear 20 is installed on the stirring shaft 14; the refrigeration coil 7 is arranged in a conical shape, small at the upper end and large at the lower end; a round hole 22 corresponding to the stirring shaft 14 is opened at the upper end of the stirring tank 1, and a discharging port 23 is opened at the center of the bottom.

[0022] Working principle of this implementation scheme: The electrical equipment used in this device is controlled by an external controller. When in use, the user first puts the emulsion raw materials that need to undergo polymerization reaction into the stirring tank 1 through the feeding port 2 respectively;

[0023] During temperature control: The temperature sensor 3 is inserted on the upper right side of the upper end of the stirring tank 1. The heat conduction interlayer 4 is arranged on the outer surface of the bottom of the stirring tank 1. The medium inlet 5 is opened at the upper end of the heat conduction interlayer 4, and the medium outlet 6 is opened at the bottom of the heat conduction interlayer 4. The refrigeration coil 7 is inserted at the inner bottom of the stirring tank 1. The liquid inlet 8 is opened at one end of the refrigeration coil 7, and the liquid outlet 9 is opened at the other end of the refrigeration coil 7. The refrigeration coil 7 is arranged in a conical shape, smaller at the upper end and larger at the lower end, as Figure 1 and Figure 2 shown. The heat conduction interlayer 4 is filled with heat conduction oil and is connected to the external oil temperature machine circulation pipeline. The refrigeration coil 7 is connected to the external circulating cold water pipe. The temperature sensor 3 detects the temperature signal in the stirring tank 1 in real time. When the temperature is too low, the controller controls the heat conduction interlayer 4 to start working. Heat transfer can occur between the heat conduction interlayer 4 and the stirring tank 1, so that the temperature of the emulsion in the stirring tank 1 rises. The heat conduction interlayer 4 has a large area, and the heat conduction oil is heated evenly and stably. When the temperature is too high, the controller controls the refrigeration coil 7 to work. External cold water is pumped into the refrigeration coil 7, and the emulsion in the stirring tank 1 can be cooled. The refrigeration coil 7 is arranged inside the stirring tank 1, effectively reducing unnecessary energy loss;

[0024] During stirring: The fixing frame 10 is installed at the upper end of the stirring tank 1. The driving motor 11 is installed at the upper end of the fixing frame 10, and the rotating end is vertically downward. The driving shaft 12 is installed on the rotating end of the driving motor 11. The inclined rod 13 is connected to the bottom of the driving shaft 12. The stirring shaft 14 is movably and obliquely inserted into the stirring tank 1 and is connected to the inclined rod 13 at the upper end. The stirring paddle 15 is installed at the bottom of the stirring shaft 14. The bottom of the transmission shaft 16 is movably installed on the upper rear end of the stirring tank 1 through a fastening bearing. A group of circular holes 17 are opened on the fixing frame 10. The stirring shaft 14 and the group of circular holes 17 are connected through a spherical surface 18. The driving shaft 12 and the transmission shaft 16 are driven by a transmission belt 19. A driving large gear 20 is installed on the transmission shaft 16, and a transmission small gear 21 meshing with the driving large gear 20 is installed on the stirring shaft 14, as Figure 3 and Figure 4 shown. The driving motor 11 first drives the stirring shaft 14 to rotate through the driving shaft 12 and the inclined rod 13. A group of spherical surfaces 18 play a guiding role, and when the stirring shaft 14 rotates, it does not interfere with the refrigeration coil 7. At the same time, the driving shaft 12 drives the transmission shaft 16 to rotate through the transmission belt 19. The transmission small gear 21 and the driving large gear 20 are straight teeth respectively. When the stirring shaft 14 rotates, the transmission small gear 21 always meshes with the driving large gear 20 on the transmission shaft 16, thereby driving the stirring shaft 14 to rotate self - rotatably, stirring the emulsion in the stirring tank, and making the emulsion fully contact with the refrigeration source or the heat source.

[0025] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present utility model. Some changes that those skilled in the art of this technology may make to some parts thereof all reflect the principles of the present utility model and fall within the protection scope of the present utility model.

Claims

1. A temperature control device for an emulsion polymerization reaction, comprising a stirring tank (1) and a feeding port (2) opened on the left side of the upper end of the stirring tank (1), characterized in that: The stirring tank (1) is provided with a temperature control mechanism and a stirring mechanism; The temperature control mechanism comprises a temperature sensor (3), a heat-conducting interlayer (4), a medium inlet (5), a medium outlet (6), a refrigeration coil (7), a liquid inlet (8) and a liquid outlet (9), wherein the temperature sensor (3) is inserted at the right side of the upper end of the stirring tank (1), the heat-conducting interlayer (4) is arranged on the outer surface of the bottom of the stirring tank (1), the medium inlet (5) is opened at the upper end of the heat-conducting interlayer (4), the medium outlet (6) is opened at the bottom of the heat-conducting interlayer (4), the refrigeration coil (7) is inserted at the bottom of the stirring tank (1), the liquid inlet (8) is opened at one end of the refrigeration coil (7), and the liquid outlet (9) is opened at the other end of the refrigeration coil (7).

2. The temperature control device in an emulsion polymerization reaction according to claim 1, characterized in that: The stirring mechanism comprises a fixed frame (10), a driving motor (11), a driving shaft (12), an inclined rod (13), a stirring shaft (14), a stirring blade (15) and a transmission shaft (16), wherein the fixed frame (10) is mounted on the upper end of the stirring tank (1), the driving motor (11) is mounted on the upper end of the fixed frame (10) with a rotating end facing vertically downward, the driving shaft (12) is mounted on the rotating end of the driving motor (11), the inclined rod (13) is connected to the bottom of the driving shaft (12), the stirring shaft (14) is obliquely inserted into the stirring tank (1) with the upper end connected to the inclined rod (13), the stirring blade (15) is mounted on the bottom of the stirring shaft (14), and the transmission shaft (16) is movably mounted on the upper rear end of the stirring tank (1).

3. The temperature control device in an emulsion polymerization reaction according to claim 2, characterized in that: The fixing frame (10) is provided with a group of circular holes (17), and the stirring shaft (14) is connected to the group of circular holes (17) via a spherical surface (18).

4. The temperature control device in an emulsion polymerization reaction according to claim 2, characterized in that: The driving shaft (12) and the transmission shaft (16) are connected to each other via a transmission belt (19); a driving gear (20) is mounted on the transmission shaft (16); and a driving pinion (21) meshing with the driving gear (20) is mounted on the stirring shaft (14).

5. The temperature control device in an emulsion polymerization reaction according to claim 1, characterized in that: The refrigeration coil (7) is arranged in a conical shape, with a small upper end and a large lower end.

6. The temperature control device in an emulsion polymerization reaction according to claim 1, characterized in that: The stirring tank (1) has a circular hole (22) at the upper end thereof corresponding to the stirring shaft (14), and a discharge port (23) at the center of the bottom thereof.

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