Cooling device for acrylic emulsion polymerization reaction

Abstract

The utility model discloses a cooling device for acrylic emulsion polymerization reaction, which comprises a storage tank, the top of the storage tank is communicated with a first electromagnetic three-way valve, one side of the first electromagnetic three-way valve is communicated with a feeding pipe, the bottom of the storage tank is communicated with a second electromagnetic three-way valve, and the other side of the first electromagnetic three-way valve is communicated with a discharging pipe. One side of the second electromagnetic three-way valve communicates with a material guide pipe, a circulating pump is arranged at the end, close to the second electromagnetic three-way valve, of the material guide pipe, a cooling tank is arranged on one side of the material storage tank, the material guide pipe penetrates through the cooling tank, and a spiral cooling pipe is arranged at the position, located in the cooling tank, of the material guide pipe. The utility model relates to the technical field of acrylic emulsion production equipment, and solves the problems that in the prior art, the acrylic emulsion is cooled through a water cooling jacket on the outer side of a reaction kettle, the cooling speed is too slow, the temperature control effect is poorer, and the production efficiency of the acrylic emulsion is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of acrylic acid emulsion production equipment, in particular to a cooling device for acrylic acid emulsion polymerization reaction. Background Art

[0002] Acrylic emulsion releases a large amount of heat during the polymerization process, so the reaction system needs to be cooled in time. The existing jacketed reactor has a limited heat exchange area and poor heat exchange effect. Especially for reactors with relatively large tonnage, the jacket heat exchange is far from meeting the actual production needs, which seriously affects the normal progress of the polymerization reaction. In the prior art, the acrylic emulsion is cooled by a water-cooled jacket on the outside of the reactor. The cooling speed is too slow, the temperature control effect is poor, and the production efficiency of the acrylic emulsion is affected. Summary of the invention

[0003] In view of the deficiencies in the prior art, the utility model provides a cooling device for acrylic emulsion polymerization reaction, which solves the problem in the prior art that the acrylic emulsion is cooled by a water-cooling jacket on the outside of the reactor, the cooling speed is too slow, the temperature control effect is poor, and the production efficiency of the acrylic emulsion is affected.

[0004] To achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a cooling device for acrylic emulsion polymerization reaction, comprising a storage tank, the top of the storage tank is connected to a first electromagnetic three-way valve, one side of the first electromagnetic three-way valve is connected to a feed pipe, the bottom of the storage tank is connected to a second electromagnetic three-way valve, one side of the second electromagnetic three-way valve is connected to a material guide pipe, one end of the material guide pipe close to the second electromagnetic three-way valve is provided with a circulation pump, one side of the storage tank is provided with a cooling tank, the material guide pipe runs through the cooling tank, the material guide pipe is located inside the cooling tank and is provided with a spiral cooling pipe, one end of the material guide pipe away from the second electromagnetic three-way valve is connected to the first electromagnetic three-way valve, the side of the second electromagnetic three-way valve away from the material guide pipe is connected to a discharge pipe, a cooling water inlet pipe is provided on the top of the cooling tank, a cooling water outlet pipe is provided on the bottom of the cooling tank, and diverter plates are equidistantly provided on the inner wall of the spiral cooling pipe.

[0005] Preferably, a servo motor is arranged on the top of the storage tank, the output end of the servo motor is transmission-connected to a stirring rod, and stirring blades are equidistantly arranged at the bottom of the stirring rod.

[0006] Preferably, a first temperature sensor is installed on one side of the storage tank, and a second temperature sensor is installed on one side of the cooling tank.

[0007] Preferably, a first pressure gauge is installed on the top of the storage tank, and a second pressure gauge is installed on the top of the cooling tank.

[0008] Preferably, a radar level meter is installed on the top of the storage tank.

[0009] The utility model provides a cooling device for acrylic emulsion polymerization reaction. It has the following beneficial effects: the cooling device for acrylic emulsion polymerization reaction, through the coordination among a storage tank, a first electromagnetic three-way valve, a feed pipe, a second electromagnetic three-way valve, a material guide pipe, a circulation pump, a cooling tank, a spiral cooling pipe, a discharge pipe, a cooling water inlet pipe, a cooling water outlet pipe and a diverter plate, transmits the mixed acrylic emulsion to the storage tank, and circulates the acrylic emulsion in the storage tank through the circulation pump, so that the heat generated by the acrylic emulsion polymerization reaction can be quickly transferred in the spiral cooling pipe to the circulating coolant in the cooling tank, and at the same time, the transmission pipeline in the cooling tank adopts a spiral design, which increases the transmission time of the acrylic emulsion in the cooling tank, and then can quickly cool down the acrylic emulsion, so that the cooling efficiency and production efficiency of the acrylic emulsion can be improved.

[0010] Through the coordination among the storage tank, the servo motor, the stirring rod and the stirring blades, during the cooling process of the acrylic emulsion, the servo motor drives the stirring rod and the stirring blades to rotate, and the acrylic emulsion in the storage tank is continuously stirred, so that the mixing of the acrylic emulsion in the storage tank is more uniform, and at the same time, the temperature of the acrylic emulsion in the storage tank is more uniform, so that the cooling speed of the acrylic emulsion is faster, which can shorten the time required for the cooling of the acrylic emulsion and help improve the production efficiency of the acrylic emulsion. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 for Figure 1 A partial enlarged view of the middle A area;

[0013] Figure 3 for Figure 1 A partial enlarged view of area B.

[0014] In the figure: 1. storage tank, 2. first electromagnetic three-way valve, 3. feed pipe, 4. second electromagnetic three-way valve, 5. material guide pipe, 6. circulation pump, 7. cooling tank, 8. spiral cooling pipe, 9. discharge pipe, 10. cooling water inlet pipe, 11. cooling water outlet pipe, 12. diverter, 13. servo motor, 14. stirring rod, 15. stirring blade, 16. first temperature sensor, 17. second temperature sensor, 18. first pressure gauge, 19. second pressure gauge, 20. radar level meter. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] In the prior art, the acrylic emulsion is cooled by means of a water-cooling jacket on the outside of the reactor, but the cooling speed is too slow, the temperature control effect is poor, and the production efficiency of the acrylic emulsion is affected.

[0017] In view of this, the utility model provides a cooling device for acrylic emulsion polymerization reaction, which cooperates with a storage tank, a first electromagnetic three-way valve, a feed pipe, a second electromagnetic three-way valve, a material guide pipe, a circulation pump, a cooling tank, a spiral cooling pipe, a discharge pipe, a cooling water inlet pipe, a cooling water outlet pipe and a diverter plate, and transmits the mixed acrylic emulsion to the storage tank, and circulates the acrylic emulsion in the storage tank through the circulation pump, so that the heat generated by the acrylic emulsion polymerization reaction can be quickly conducted to the circulating coolant in the cooling tank in the spiral cooling pipe. At the same time, the transmission pipeline in the cooling tank adopts a spiral design, which increases the transmission time of the acrylic emulsion in the cooling tank, so that the heat generated by the acrylic emulsion polymerization reaction can be quickly conducted, thereby achieving rapid cooling of the acrylic emulsion and improving the cooling efficiency and production efficiency of the acrylic emulsion.

[0018] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principles and processes, and no longer explains the electrical control.

[0019] Depend on Figure 1-3It can be known that a cooling device for acrylic emulsion polymerization reaction comprises a storage tank 1, the top of the storage tank 1 is connected with a first electromagnetic three-way valve 2, one side of the first electromagnetic three-way valve 2 is connected with a feed pipe 3, the bottom of the storage tank 1 is connected with a second electromagnetic three-way valve 4, one side of the second electromagnetic three-way valve 4 is connected with a guide pipe 5, one end of the guide pipe 5 close to the second electromagnetic three-way valve 4 is provided with a circulation pump 6, a cooling tank 7 is provided on one side of the storage tank 1, the guide pipe 5 runs through the cooling tank 7, a spiral cooling pipe 8 is provided inside the guide pipe 5 located in the cooling tank 7, one end of the guide pipe 5 away from the second electromagnetic three-way valve 4 is connected to the first electromagnetic three-way valve 2, the side of the second electromagnetic three-way valve 4 away from the guide pipe 5 is connected with a discharge pipe 9, a cooling water inlet pipe 10 is provided on the top of the cooling tank 7, a cooling water outlet pipe 11 is provided at the bottom of the cooling tank 7, and diverter plates 12 are equidistantly provided on the inner wall of the spiral cooling pipe 8;

[0020] In the specific implementation process, it is worth pointing out that, through the coordination among the storage tank 1, the first electromagnetic three-way valve 2 and the feed pipe 3, the first electromagnetic three-way valve 2 is controlled to connect the storage tank 1 and the feed pipe 3, so that the mixed acrylic emulsion is transferred to the storage tank 1, and through the coordination among the storage tank 1, the first electromagnetic three-way valve 2, the second electromagnetic three-way valve 4, the guide pipe 5 and the circulation pump 6, the second electromagnetic three-way valve 4 is controlled to connect the bottom of the storage tank 1 with the guide pipe 5, and at the same time, the first electromagnetic three-way valve 2 is controlled to connect the top of the storage tank 1 with the other end of the guide pipe 5, and the acrylic emulsion is circulated and transmitted between the storage tank 1 and the guide pipe through the circulation pump 6, and the cooling water inlet is passed through the cooling tank 7. The cooperation between the pipe 10 and the cooling water outlet pipe 11 realizes the circulation input of the coolant into the cooling tank 7, so that the coolant in the cooling tank 7 maintains a low temperature. Through the cooperation between the storage tank 1, the first electromagnetic three-way valve 2, the second electromagnetic three-way valve 4, the guide pipe 5, the circulation pump 6, the cooling tank 7, the spiral cooling pipe 8, the cooling water inlet pipe 10 and the cooling water outlet pipe 11, the acrylic emulsion is circulated and transmitted in the guide pipe 5. After the acrylic emulsion is transmitted to the spiral cooling pipe 8, the acrylic emulsion in the spiral cooling pipe 8 conducts heat to the circulating coolant in the cooling tank 7. At the same time, the transmission pipeline in the cooling tank 7 adopts a spiral design, which can increase the transmission time of the acrylic emulsion in the cooling tank 7 and improve the acrylic emulsion. The cooling efficiency of the acrylic emulsion is improved by the coordination between the storage tank 1, the second electromagnetic three-way valve 4 and the discharge pipe 9. After the acrylic emulsion is cooled, the storage tank 1 is connected to the discharge pipe 9 by controlling the second electromagnetic three-way valve 4, so that the acrylic emulsion in the storage tank 1 can be discharged through the discharge pipe 9. The diverter 12 is used to divert and stir the acrylic emulsion in the spiral cooling pipe 8, so that the acrylic emulsion can be evenly cooled when the spiral cooling pipe 8 is transmitted, thereby improving the cooling efficiency of the acrylic emulsion. The storage tank 1, the first electromagnetic three-way valve 2, the feed pipe 3, the second electromagnetic three-way valve 4, the guide pipe 5, the circulation pump 6, the cooling tank 7, the spiral cooling pipe 8, the discharge pipe 9, the cooling water inlet pipe 10, the cooling water outlet pipe 11 and The coordination between the diverter pieces 12 is to transfer the mixed acrylic emulsion to the storage tank 1, and circulate the acrylic emulsion in the storage tank 1 through the circulation pump 6, so that the heat generated by the polymerization reaction of the acrylic emulsion can be quickly transferred to the circulating coolant in the cooling tank 7 in the spiral cooling pipe 8. At the same time, the transmission pipeline in the cooling tank 7 adopts a spiral design to increase the transmission time of the acrylic emulsion in the cooling tank 7, so that the heat generated by the polymerization reaction of the acrylic emulsion can be quickly transferred, and the acrylic emulsion can be quickly cooled, thereby improving the cooling efficiency and production efficiency of the acrylic emulsion. The specific models of the first electromagnetic three-way valve 2, the second electromagnetic three-way valve 4 and the circulation pump 6 are not limited, and can meet the use requirements;

[0021] Furthermore, a servo motor 13 is provided on the top of the storage tank 1, and a stirring rod 14 is transmission-connected to the output end of the servo motor 13, and stirring blades 15 are equidistantly provided at the bottom of the stirring rod 14;

[0022] In the specific implementation process, it is worth pointing out that, through the coordination between the storage tank 1, the servo motor 13, the stirring rod 14 and the stirring blade 15, during the cooling process of the acrylic emulsion, the servo motor 13 drives the stirring rod 14 and the stirring blade 15 to rotate, and the acrylic emulsion in the storage tank 1 is continuously stirred, so that the mixing of the acrylic emulsion in the storage tank 1 is more uniform, and at the same time, the temperature of the acrylic emulsion in the storage tank 1 is more uniform, the cooling efficiency of the acrylic emulsion is improved, and the time required for the cooling of the acrylic emulsion is shortened, wherein the specific model of the servo motor 13 is not limited, and it can meet the use requirements;

[0023] Further, a first temperature sensor 16 is installed on one side of the storage tank 1, and the first temperature sensor 16 is used to measure the temperature of the acrylic emulsion in the storage tank 1. A second temperature sensor 17 is installed on one side of the cooling tank 7, and the second temperature sensor 17 is used to measure the temperature of the coolant in the cooling tank 7;

[0024] In the specific implementation process, it is worth pointing out that the first temperature sensor 16 is used to measure the temperature of the acrylic emulsion in the storage tank 1, and the second temperature sensor 17 is used to measure the temperature of the coolant in the cooling tank 7. Through the coordination between the storage tank 1, the cooling tank 7, the first temperature sensor 16 and the second temperature sensor 17, by measuring the temperature of the acrylic emulsion in the storage tank 1 and the coolant in the cooling tank 7, it is convenient for the staff to grasp the cooling progress of the acrylic emulsion, wherein the specific models of the first temperature sensor 16 and the second temperature sensor 17 are not limited, and can meet the use requirements;

[0025] Furthermore, a first pressure gauge 18 is installed on the top of the storage tank 1, and the first pressure gauge 18 is used to measure the pressure in the storage tank 1. A second pressure gauge 19 is installed on the top of the cooling tank 7, and the second pressure gauge 19 is used to measure the pressure in the cooling tank 7.

[0026] In the specific implementation process, it is worth pointing out that the first pressure gauge 18 is used to measure the pressure in the storage tank 1, and the second pressure gauge 19 is used to measure the pressure in the cooling tank 7. Through the coordination between the storage tank 1, the cooling tank 7, the first pressure gauge 18 and the second pressure gauge 19, by measuring the pressures in the storage tank 1 and the cooling tank 7, it is convenient for the staff to grasp the pressure data of the storage tank 1 and the cooling tank 7, and ensure the safe production of the acrylic emulsion;

[0027] Furthermore, a radar level meter 20 is installed on the top of the storage tank 1, and the radar level meter 20 is used to measure the liquid level height of the acrylic emulsion in the storage tank 1;

[0028] In the specific implementation process, it is worth pointing out that the radar level meter 20 is used to measure the liquid level height of the acrylic emulsion in the storage tank 1, so that the staff can understand the liquid level of the acrylic emulsion in the storage tank 1. The specific model of the radar level meter 20 is not limited, and it can meet the use requirements;

[0029] Specifically, when the cooling device for the polymerization reaction of acrylic emulsion is used, the first electromagnetic three-way valve 2 is controlled to connect the feed pipe 3 with the storage tank 1, and the mixed acrylic emulsion is transferred to the storage tank 1. The servo motor 13 is turned on, and the stirring blade 15 is driven to rotate by the stirring rod 14 to make the acrylic emulsion fully polymerize. After the input of the acrylic emulsion is completed, the first electromagnetic three-way valve 2 is controlled to disconnect the feed pipe 3 from the storage tank 1, and at the same time, the guide pipe 5 is connected to the top of the storage tank 1, and the second electromagnetic three-way valve 4 is controlled to connect the guide pipe 5 to the bottom of the storage tank 1. , coolant is circulated into the cooling tank 7 through the cooling water inlet pipe 10 and the cooling water outlet pipe 11, the circulation pump 6 is turned on, and the guide pipe 5 transfers the acrylic emulsion in the storage tank 1 to the spiral cooling pipe 8 in the cooling tank 7. The high-temperature acrylic emulsion transfers heat to the circulating coolant with a lower temperature in the spiral cooling pipe 8, and is re-transferred to the storage tank 1 by the guide pipe 5 at the bottom of the cooling tank 7. Through the continuous circulation of the acrylic emulsion, the heat generated by the polymerization reaction of the acrylic emulsion is continuously transferred to the circulating coolant, and the acrylic emulsion in the storage tank 1 is measured by the first temperature sensor 16. The temperature of the acrylic emulsion is measured. After the acrylic emulsion drops to the required temperature, the circulation pump 6 is turned off, and the first electromagnetic three-way valve 2 and the second electromagnetic three-way valve 4 are turned off to stop the circulation of the acrylic emulsion. The second electromagnetic three-way valve 4 is controlled to connect the storage tank 1 with the discharge pipe 9, and the cooled acrylic emulsion is output from the storage tank 1 to complete the cooling of the acrylic emulsion. The storage tank 1, the first electromagnetic three-way valve 2, the feed pipe 3, the second electromagnetic three-way valve 4, the guide pipe 5, the circulation pump 6, the cooling tank 7, the spiral cooling pipe 8, the discharge pipe 9, the cooling water inlet pipe 10, the cooling water outlet pipe 11 and The coordination between the diverter pieces 12 allows the mixed acrylic emulsion to be transferred to the storage tank 1, and the acrylic emulsion in the storage tank 1 is circulated and transferred by the circulating pump 6, so that the heat generated by the polymerization reaction of the acrylic emulsion can be quickly transferred to the circulating coolant in the cooling tank 7 in the spiral cooling pipe 8. At the same time, the transmission pipeline in the cooling tank 7 adopts a spiral design, which increases the transmission time of the acrylic emulsion in the cooling tank 7, so that the heat generated by the polymerization reaction of the acrylic emulsion can be quickly transferred, thereby achieving rapid cooling of the acrylic emulsion and improving the cooling efficiency and production efficiency of the acrylic emulsion.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0031] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cooling device for acrylic acid emulsion polymerization, comprising a storage tank (1), characterized in that: The top of the material storage tank (1) is connected to a first electromagnetic three-way valve (2), one side of the first electromagnetic three-way valve (2) is connected to a feed pipe (3), the bottom of the material storage tank (1) is connected to a second electromagnetic three-way valve (4), one side of the second electromagnetic three-way valve (4) is connected to a material guide pipe (5), one end of the material guide pipe (5) close to the second electromagnetic three-way valve (4) is provided with a circulation pump (6), one side of the material storage tank (1) is provided with a cooling tank (7), the material guide pipe (5) passes through the cooling tank (7), The material guide pipe (5) is located inside the cooling tank (7) and is provided with a spiral cooling pipe (8). The end of the material guide pipe (5) away from the second electromagnetic three-way valve (4) is connected to the first electromagnetic three-way valve (2), and the side of the second electromagnetic three-way valve (4) away from the material guide pipe (5) is connected to a discharge pipe (9). The top of the cooling tank (7) is provided with a cooling water inlet pipe (10), the bottom of the cooling tank (7) is provided with a cooling water outlet pipe (11), and the inner wall of the spiral cooling pipe (8) is equidistantly provided with diverter plates (12).

2. The cooling device for acrylic emulsion polymerization according to claim 1, characterized in that: A servo motor (13) is arranged on the top of the storage tank (1), and an output end of the servo motor (13) is drivingly connected to a stirring rod (14), and stirring blades (15) are equidistantly arranged at the bottom of the stirring rod (14).

3. The cooling device for acrylic emulsion polymerization according to claim 1, characterized in that: A first temperature sensor (16) is installed on one side of the storage tank (1), and a second temperature sensor (17) is installed on one side of the cooling tank (7).

4. The cooling device for acrylic emulsion polymerization according to claim 1, characterized in that: A first pressure gauge (18) is installed on the top of the storage tank (1), and a second pressure gauge (19) is installed on the top of the cooling tank (7).

5. The cooling device for acrylic emulsion polymerization according to claim 1, characterized in that: A radar level meter (20) is installed on the top of the storage tank (1).

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