Multifunctional polymerization kettle for polyacrylamide production

Abstract

The utility model relates to a multifunctional polymerization kettle for producing polyacrylamide, and effectively solves the problems that most of the existing polymerization kettles are designed in a fixed volume, and when the production scale is switched from small-batch test to large-scale industrial production, equipment of different specifications needs to be replaced or a plurality of independent devices need to be additionally arranged, so that the production cost is low. Therefore, the problems of high equipment purchase cost, complex production line layout and large transverse occupied space of the traditional horizontal polymerization kettle are solved. According to the multifunctional polymerization kettle for polyacrylamide production, the protection shells can be installed in a stacked mode, the overall volume of equipment is rapidly adjusted by combining different numbers of protection shell units, the diversified capacity requirements of small-batch tests or large-scale production are met, and the capacity limitation of equipment of a single specification is avoided; compared with a traditional horizontal polymerization kettle, the horizontal polymerization kettle saves more transverse installation space of a workshop and facilitates compact layout of a production line.

Description

Technical Field

[0001] This utility model belongs to the field of reaction vessel technology, specifically relating to a multifunctional polymerization reactor for polyacrylamide production. Background Technology

[0002] Polyacrylamide, as an important water-soluble polymer, is widely used in wastewater treatment, oil extraction, papermaking and other fields. The performance of the polymerization equipment in its production process directly affects product quality and production efficiency.

[0003] Most existing polymerization reactors are designed with fixed volume. When the production scale is switched from small-batch trials to large-scale industrial production, it is necessary to replace equipment of different specifications or add multiple independent devices, resulting in high equipment procurement costs and complex production line layout. In addition, traditional horizontal polymerization reactors occupy a large amount of horizontal space. If the height of the workshop allows, it is difficult to achieve flexible volume adjustment through vertical expansion, resulting in low space utilization. Furthermore, the polymerization reaction has strict requirements for temperature control. Traditional polymerization reactors usually rely on jacketed structures or external heat exchange equipment for heating / cooling, which are complex in structure and have limited heat exchange efficiency.

[0004] In addition, if the internal protective or transmission components are damaged due to long-term contact with corrosive materials, the entire vessel body needs to be disassembled for repair. The replacement of parts is difficult and the maintenance cost is high, which can easily cause production interruption. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the existing technology, this utility model provides a multifunctional polymerization reactor for polyacrylamide production. This multifunctional polymerization reactor for polyacrylamide production effectively solves the shortcomings of traditional polymerization reactors in terms of capacity adjustment, temperature control, maintenance costs and mixing efficiency through innovative designs such as a stacked protective shell structure, integrated heat exchange function of storage cylinder and detachable transmission components, thus meeting diverse production needs.

[0006] A multifunctional polymerization reactor for polyacrylamide production includes a protective shell. Two blocks are fixedly installed on both sides of the inner wall of the protective shell. A storage cylinder is fixedly installed between the two blocks on the inner wall of the protective shell. A protective cylinder is fixedly connected to the inner wall of the protective shell between the two blocks. Limiting rods are fixedly connected to the upper and lower sides of the inner wall of the protective shell. A drive shaft is rotatably connected between the two limiting rods. Stirring blades are fixedly connected to both ends of the outer surface of the drive shaft. A cover plate is bolted to the top of the protective shell. A drive motor is fixedly installed on the top of the cover plate. A support plate is bolted to the bottom of the protective shell.

[0007] Preferably, a delivery pipe is inserted into the outer surface of the protective shell, and one end of the delivery pipe that passes through the protective shell is inserted into the outer surface of the storage cylinder.

[0008] Preferably, the end of the drive motor input that passes through the cover plate is connected to a first drive rod via a key, and the bottom end of the first drive rod is inserted into a second drive rod.

[0009] Preferably, the outer surfaces of both the first and second drive rods are connected to the inner wall of the drive shaft.

[0010] Preferably, a feed pipe is fixedly connected through the top of the cover plate, and a flange is fixedly connected to the end of the feed pipe.

[0011] Preferably, a discharge pipe is inserted into the bottom of the pallet, and a flange is fixedly connected to the end of the discharge pipe.

[0012] Preferably, support feet are fixedly installed at the four corners of the bottom of the tray, and anti-slip pads are fixedly installed at the bottom of the support feet.

[0013] The beneficial effects of the above technical solution are as follows:

[0014] (1) The multifunctional polyacrylamide production polymerization reactor can be stacked between protective shells. By combining different numbers of protective shell units, the overall volume of the equipment can be quickly adjusted to meet the diverse capacity requirements of small-batch trials or large-scale production, avoiding the capacity limitations of single-specification equipment. The stacking structure adopts a vertical modular design, which can expand the equipment volume vertically. Compared with the traditional horizontal polymerization reactor, it saves more horizontal installation space in the workshop and facilitates a compact layout of the production line.

[0015] (2) The multifunctional polyacrylamide production polymerization reactor can form a barrier between the protective cylinder and the protective shell by setting the storage cylinder. At the same time, it can inject steam or cold water into the inside of the storage cylinder to heat or cool the material in the reactor, so as to control the polymerization reaction temperature. After regular use, the protective cylinder can be replaced separately, thereby reducing the cost of maintenance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall installation structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the stirring blade installation structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the drive motor mounting structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the storage cylinder installation structure of this utility model;

[0020] Figure 5 This is a cross-sectional view of the storage cylinder of this utility model;

[0021] Figure 6 This is a schematic diagram of the pallet structure of this utility model.

[0022] In the diagram: 1. Protective shell; 2. Stop block; 3. Storage cylinder; 4. Conveying pipe; 5. Protective cylinder; 6. Limiting rod; 7. Drive shaft; 8. Stirring blade; 9. Cover plate; 10. Drive motor; 11. First drive rod; 12. Second drive rod; 13. Feed pipe; 14. Support plate; 15. Discharge pipe; 16. Support foot. Detailed Implementation

[0023] The foregoing and other technical contents, features and effects of this utility model are described in conjunction with the appendix below. Figures 1 to 6 The embodiments are described in detail below.

[0024] This embodiment provides a multifunctional polymerization reactor for polyacrylamide production, as shown in the attached figure. It includes a protective shell 1, with baffles 2 fixedly installed on both sides of the inner wall of the protective shell 1. A storage cylinder 3 is fixedly installed on the inner wall of the protective shell 1 between the two baffles 2. A conveying pipe 4 is inserted into the outer surface of the protective shell 1, with one end of the conveying pipe 4 penetrating the protective shell 1 and connecting to the outer surface of the storage cylinder 3. A protective cylinder 5 is fixedly connected to the inner wall of the protective shell 1 between the two baffles 2. The protective shell 1 serves as the main frame of the equipment, supporting and protecting the internal components. Modular stacking is achieved through bolt connections, expanding the equipment volume. The vertical stacking design saves lateral space and adapts to different production capacity requirements. The detachable structure facilitates overall maintenance and transportation. The baffles 2 are fixed. The axial position of the storage cylinder 3 and the protective cylinder 5 prevents displacement during stirring or temperature changes, enhancing structural stability, avoiding component collision damage, and extending equipment life. The storage cylinder 3 stores reactants or heat exchange media while also serving as an outer barrier for the protective cylinder 5, isolating corrosive materials. It integrates heat exchange functions, precisely controls reaction temperature, reduces the replacement frequency of the protective cylinder 5, and saves maintenance costs. The conveying pipe 4 connects the storage cylinder 3 to the external system, conveying materials or heat exchange media to achieve continuous material supply and temperature control, supporting automated production processes. The protective cylinder 5 isolates the stirring zone from the protective shell 1, preventing material leakage. As a vulnerable part, it can be replaced separately, simplifying the maintenance process and reducing repair costs; it also protects the transmission system from material corrosion.

[0025] Limiting rods 6 are fixedly connected to the upper and lower sides of the inner wall of the protective shell 1. A drive shaft 7 is rotatably connected between the two limiting rods 6. Stirring blades 8 are fixedly connected to both ends of the outer surface of the drive shaft 7. A cover plate 9 is bolted to the top of the protective shell 1. A drive motor 10 is fixedly installed on the top of the cover plate 9. The input end of the drive motor 10 is inserted into one end of the cover plate 9 and connected to a first drive rod 11 via a key. A second drive rod 12 is inserted into the bottom end of the first drive rod 11. The outer surfaces of the first drive rod 11 and the second drive rod 12 are connected to the inner wall of the drive shaft 7. The limiting rods 6 support the drive shaft 7, restrict its radial displacement, ensure a smooth stirring process, reduce vibration and noise, and improve stirring efficiency. Extending the lifespan of the drive shaft 7 and bearings, the drive shaft 7 transmits power from the drive motor 10 to the stirring blade 8. A detachable connection is achieved through key transmission and plug-in structure, facilitating maintenance. The stirring blade 8, through rotation, propels the material to circulate, promoting uniform mixing and reaction, optimizing reaction kinetics, and improving product quality stability. Different types of blades can be replaced according to material characteristics. The cover plate 9 seals the top of the protective shell 1, supporting the drive motor 10 and the feed pipe 13. The bolted connection design facilitates quick opening for cleaning or maintenance of internal components. The drive motor 10 provides stirring power, driving the drive shaft 7 through the first drive rod 11 and the second drive rod 12, efficiently transmitting torque and supporting frequency conversion speed regulation to adapt to the stirring needs of different reaction stages.

[0026] A feed pipe 13 is fixedly connected to the top of the cover plate 9. A flange is fixedly connected to the end of the feed pipe 13. A support plate 14 is bolted to the bottom of the protective shell 1. A discharge pipe 15 is inserted into the bottom of the support plate 14. A flange is fixedly connected to the end of the discharge pipe 15. Support feet 16 are fixedly installed at the four corners of the bottom of the support plate 14. Anti-slip pads are fixedly installed at the bottom of the support feet 16. The support plate 14 supports the bottom of the protective shell 1, fixes the discharge pipe 15 and the support feet 16, and enhances the overall stability of the equipment. The bolt connection facilitates the maintenance of the bottom components. The discharge pipe 15 discharges the reaction products. The flange interface is compatible with conveying systems of different pipe diameters to ensure smooth material discharge and reduce residue. It is also convenient to connect with subsequent process equipment.

[0027] In summary, the usage steps of this multifunctional polyacrylamide production polymerization reactor are as follows:

[0028] 1. First, according to different usage requirements, multiple protective shells 1 are connected and fixed with bolts. Then, according to different numbers of protective shells 1, different numbers of second drive rods 12 are connected and installed at the bottom of the first drive rod 11 and inserted into the inner wall of multiple drive shafts 7.

[0029] 2. Next, steam or cold water is injected into the protective cylinder 5 through one of the conveying pipes 4, while steam or cold water is sent out through the other conveying pipe 4 and circulated to ensure a stable internal environment.

[0030] 3. Start the drive motor 10 to drive multiple stirring blades 8 to rotate synchronously, so as to achieve full mixing of the internal materials. After the reaction is completed, the material can be discharged outward through the discharge pipe 15.

[0031] The above description is only for illustrating the present utility model. It should be understood that the present utility model is not limited to the above embodiments, and various modifications that conform to the concept of the present utility model are within the protection scope of the present utility model.

Claims

1. A multifunctional polymerization reactor for producing polyacrylamide, comprising a protective shell (1), characterized in that: Both sides of the inner wall of the protective shell (1) are fixedly installed with baffles (2). A storage cylinder (3) is fixedly installed between the two baffles (2) on the inner wall of the protective shell (1). A protective cylinder (5) is fixedly connected to the inner wall of the protective shell (1) between the two baffles (2). Limiting rods (6) are fixedly connected to the upper and lower sides of the inner wall of the protective shell (1). A drive shaft (7) is rotatably connected between the two limiting rods (6). Stirring blades (8) are fixedly connected to both ends of the outer surface of the drive shaft (7). A cover plate (9) is bolted to the top of the protective shell (1). A drive motor (10) is fixedly installed on the top of the cover plate (9). A support plate (14) is bolted to the bottom of the protective shell (1).

2. The multifunctional polyacrylamide production polymerization reactor according to claim 1, characterized in that: A delivery pipe (4) is inserted into the outer surface of the protective shell (1), and one end of the delivery pipe (4) is inserted into the outer surface of the storage cylinder (3).

3. The multifunctional polyacrylamide production polymerization reactor according to claim 1, characterized in that: The input end of the drive motor (10) is inserted into the cover plate (9) and connected to the first drive rod (11) via a key transmission. The bottom end of the first drive rod (11) is connected to the second drive rod (12).

4. The multifunctional polyacrylamide production polymerization reactor according to claim 3, characterized in that: The outer surfaces of the first drive rod (11) and the second drive rod (12) are both connected to the inner wall of the transmission shaft (7) for transmission.

5. The polymerization reactor for producing multifunctional polyacrylamide according to claim 1, characterized in that: The top of the cover plate (9) is fixedly connected to a feed pipe (13), and the end of the feed pipe (13) is fixedly connected to a flange.

6. The multifunctional polyacrylamide production polymerization reactor according to claim 1, characterized in that: A discharge pipe (15) is inserted into the bottom of the pallet (14), and a flange is fixedly connected to the end of the discharge pipe (15).

7. The multifunctional polyacrylamide production polymerization reactor according to claim 1, characterized in that: Support feet (16) are fixedly installed at the four corners of the bottom of the tray (14), and anti-slip pads are fixedly installed at the bottom of the support feet (16).

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