Maleic anhydride reaction raw material mixing device

Abstract

The utility model discloses a maleic anhydride reaction raw material mixing device, particularly relates to the technical field of maleic anhydride reaction, and comprises a mixing barrel, the top of the mixing barrel is in threaded connection with a threaded cover, the top end of the threaded cover is fixedly connected with a U-shaped plate, a hydraulic cylinder is fixedly mounted at the top end in the U-shaped plate, and the bottom end of the hydraulic cylinder is fixedly connected with a connecting frame; a rotating assembly is arranged on the connecting frame and comprises a motor, a rotating shaft, a plurality of stirring blades and fan blades, the motor is fixedly installed in the connecting frame, and an output shaft of the motor is fixedly connected with the end of the rotating shaft. The motor works to drive the rotating shaft to rotate, so that the plurality of stirring blades are driven to rotate, raw materials and solvents are stirred through the plurality of stirring blades, after maleic anhydride reaction, the threaded piston is rotated to be far away from the mixing cylinder, waste liquid penetrates through the filter screen plate and is discharged into the mixing cylinder, and products are left on the filter screen plate, so that the products and the waste liquid are conveniently separated; the use effect is good.

Description

Technical Field

[0001] This utility model relates to the field of maleic anhydride reaction technology, and more specifically, to a maleic anhydride reaction raw material mixing device. Background Technology

[0002] The maleic anhydride reaction is an organic synthesis reaction, commonly used to synthesize amides. In the maleic anhydride reaction, maleic anhydride reacts with amines to form amides. However, during the dissolution process, maleic anhydride crystals often exhibit uneven distribution, mainly concentrated in the lower and middle parts. Consequently, after the maleic anhydride dissolves, the main components are unevenly distributed in the solution, requiring continued stirring to ensure thorough mixing and reaction.

[0003] A search revealed that Chinese Patent CN215087103U discloses a high-efficiency stirring device for the processing of maleic anhydride to maleic esters. This invention can effectively improve the uniformity of maleic anhydride crystals in the methanol solution during the process of preparing maleic esters by mixing maleic anhydride crystals with methanol, thereby reducing the stirring and mixing reaction time and improving the stirring efficiency.

[0004] When the above-mentioned stirring device is in use, it synchronously and stably and efficiently flips and stirs the raw materials through each flipping shaft to ensure the uniform distribution of maleic anhydride crystals in the solution. However, when the material is taken out, the product and waste liquid are mixed together, making it inconvenient to separate the product and waste liquid, resulting in poor performance. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a maleic anhydride reaction raw material mixing device, which aims to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a maleic anhydride reaction raw material mixing device, comprising a mixing cylinder, a threaded cap threaded to the top of the mixing cylinder, a U-shaped plate fixedly connected to the top of the threaded cap, a hydraulic cylinder fixedly installed inside the top of the U-shaped plate, a connecting frame fixedly connected to the bottom of the hydraulic cylinder, the connecting frame comprising a U-shaped frame and a circular base plate, a rotating assembly mounted on the connecting frame, the rotating assembly comprising a motor, a rotating shaft, multiple stirring blades and fan blades, the motor fixedly mounted on the circular base plate inside the connecting frame, the motor output shaft passing through the circular base plate inside the connecting frame and fixedly connected to the rotating shaft, multiple stirring blades and fan blades being fixedly sleeved on the rotating shaft, and multiple stirring blades being located below the fan blades, a filter screen plate being provided at the bottom of the rotating shaft.

[0007] Furthermore, the bottom end of the threaded cover is fixedly connected to two uprights, and the bottom ends of both uprights are fixedly connected to the filter screen plate.

[0008] Furthermore, a filter screen frame is fixedly sleeved on the rotating shaft, and multiple stirring blades are located below the filter screen frame.

[0009] Furthermore, a gasket is fitted onto the threaded cap, and the bottom end of the gasket is in contact with the mixing cylinder.

[0010] In the above technical solution, the gasket can improve the stability between the threaded cap and the mixing cylinder.

[0011] Furthermore, a feed pipe is fixedly connected to the mixing cylinder, a valve is fixedly installed on the feed pipe, and a feed hopper is fixedly connected to the top of the feed pipe.

[0012] In the above technical solution, the valve is opened and the raw materials and solvents are poured into the feed hopper, and the raw materials and solvents enter the mixing cylinder through the feed pipe.

[0013] Furthermore, a threaded piston is provided at the bottom of the mixing cylinder, and the threaded piston is threadedly connected to the mixing cylinder.

[0014] In the above technical solution, the use of a threaded piston facilitates the discharge of waste liquid from the mixing tank.

[0015] Furthermore, the mixing cylinder is fixedly mounted on the support frame.

[0016] In the above technical solution, the mixing cylinder is supported, and the threaded piston is kept away from the ground to provide operating space.

[0017] The technical effects and advantages of this utility model are as follows:

[0018] 1. This utility model uses a motor to drive a rotating shaft, which in turn drives multiple stirring blades to rotate. The stirring blades stir the raw materials and solvent. After the maleic anhydride reacts, the screw piston is rotated and moved away from the mixing cylinder. The waste liquid passes through the filter screen and is discharged into the mixing cylinder, while the product remains on the filter screen. The screw cap is rotated and moved away from the mixing cylinder. Then, the screw cap is moved upward, which moves the two uprights upward, thereby moving the filter screen upward and removing the product from the filter screen. At the same time, the filter screen can clean large pieces of product adhering to the inner wall of the mixing cylinder, which facilitates the separation of product and waste liquid and has good performance.

[0019] 2. This utility model uses the retraction of the piston rod on the hydraulic cylinder to drive the connecting frame to move upward, thereby driving the motor to move upward, and then driving the filter screen frame to move upward. When the rotating shaft rotates, the rotating shaft can drive the fan blade to rotate. External air passes through the threaded cover into the mixing cylinder, and finally exits through the top of the feed hopper and the bottom of the mixing cylinder, forming a complete air duct, which can dry the waste liquid adhering to the product and is convenient to use. Attached Figure Description

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0021] Figure 1 This is a schematic diagram of the overall structure of a maleic anhydride reaction raw material mixing device according to the present invention. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the overall structure of a maleic anhydride reaction raw material mixing device according to the present invention. Figure 2 ;

[0023] Figure 3 This is a cross-sectional view of the mixing cylinder and a schematic diagram of the filter plate assembly structure of a maleic anhydride reaction raw material mixing device according to the present invention;

[0024] Figure 4 This is a schematic diagram of the assembly structure of the U-shaped plate and filter screen plate of a maleic anhydride reaction raw material mixing device according to the present invention;

[0025] Figure 5 This is a cross-sectional view of the mixing cylinder and a schematic diagram of the threaded piston assembly structure of a maleic anhydride reaction raw material mixing device according to this utility model;

[0026] Figure 6 This is a schematic diagram of the rotating component structure of a maleic anhydride reaction raw material mixing device according to the present invention.

[0027] In the diagram: 1. Mixing cylinder; 2. Feed pipe; 3. Feed hopper; 4. Valve; 5. Threaded cover; 6. U-shaped plate; 7. Hydraulic cylinder; 8. Connecting frame; 9. Rotating assembly; 10. Gasket; 11. Support frame; 12. Threaded piston; 13. Filter screen plate; 14. Vertical rod; 901. Motor; 902. Rotating shaft; 903. Stirring blade; 904. Fan blade; 905. Filter screen frame. Detailed Implementation

[0028] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] Refer to the instruction manual appendix Figure 1-6 This embodiment of a maleic anhydride reaction raw material mixing device includes a mixing cylinder 1. The top of the mixing cylinder 1 is threadedly connected to a threaded cap 5. A through hole is provided in the middle of the threaded cap 5. A U-shaped plate 6 is fixedly connected to the top of the threaded cap 5. A hydraulic cylinder 7 is fixedly installed inside the top of the U-shaped plate 6. A connecting frame 8 is fixedly connected to the bottom of the hydraulic cylinder 7. The connecting frame 8 includes a U-shaped frame and a circular base plate. The circular base plate is adapted to the through hole in the middle of the threaded cap 5. A rotating assembly 9 is installed on the connecting frame 8. The rotating assembly 9 includes a motor 901, a rotating shaft 902, multiple stirring blades 903 and fan blades 904. The motor 901 is fixedly installed on a circular base plate inside the connecting frame 8. The output shaft of the motor 901 passes through the circular base plate inside the connecting frame 8 and is fixedly connected to the rotating shaft 902. Multiple stirring blades 903 and fan blades 904 are fixedly sleeved on the rotating shaft 902, and multiple stirring blades 903 are located below fan blades 904. A filter screen plate 13 is provided at the bottom of the rotating shaft 902. Two uprights 14 are fixedly connected to the bottom end of the threaded cover 5, and the bottom ends of the two uprights 14 are fixedly connected to the filter screen plate 13. A filter screen frame 905 is fixedly sleeved on the rotating shaft 902, and multiple stirring blades 903 are located below the filter screen frame 905. A gasket 10 is sleeved on the threaded cover 5, and the bottom end of the gasket 10 is in contact with the mixing cylinder 1.

[0030] Furthermore, a feed pipe 2 is fixedly connected to the mixing cylinder 1, a valve 4 is fixedly installed on the feed pipe 2, and a feed hopper 3 is fixedly connected to the top of the feed pipe 2. A threaded piston 12 is provided at the bottom of the mixing cylinder 1, and the threaded piston 12 is threadedly connected to the mixing cylinder 1.

[0031] Furthermore, the mixing cylinder 1 is fixedly mounted on the support frame 11 to support the mixing cylinder 1, while keeping the threaded piston 12 away from the ground to provide operating space.

[0032] The usage method of this embodiment is as follows:

[0033] In use, open valve 4 and pour the raw materials and solvent into feed hopper 3. The raw materials and solvent enter mixing cylinder 1 through feed pipe 2. Start motor 901. Motor 901 drives shaft 902 to rotate, thereby driving multiple stirring blades 903 to rotate. The multiple stirring blades 903 stir the raw materials and solvent. After the maleic anhydride reaction, rotate threaded piston 12 and move it away from mixing cylinder 1. Waste liquid passes through filter screen plate 13 and is discharged into mixing cylinder 1. Product remains on filter screen plate 13. Rotate threaded cover 5 and move it away from mixing cylinder 1. Then move threaded cover 5 upward and drive two upright rods 14 upward, thereby driving filter screen plate 13 upward. Remove the product on filter screen plate 13. At the same time, filter screen plate 13 can clean large pieces of product adhering to the inner wall of mixing cylinder 1, which facilitates the separation of product and waste liquid. The effect is good. Similarly, install threaded cover 5. Gasket 10 can seal between threaded cover 5 and mixing cylinder 1 and buffer the vibration generated by motor operation.

[0034] When the hydraulic cylinder 7 is activated, the piston rod on the hydraulic cylinder 7 retracts, causing the connecting frame 8 to move upward. At this time, the circular base plate of the connecting frame 8, which is adapted to the through hole on the threaded cover 5, moves upward, thereby driving the motor 901 to move upward, and then driving the filter screen frame 905 to move upward. When the rotating shaft 902 rotates, the rotating shaft 902 can drive the fan blade 904 to rotate. External air passes through the through hole on the threaded cover 5 and enters the mixing cylinder 1. Finally, it is discharged through the top of the feed hopper 3 and the bottom of the mixing cylinder 1, forming a complete air duct. This can dry the waste liquid adhering to the product and is easy to use.

[0035] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited and can be determined using conventional equipment. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 maleic anhydride reaction raw material mixing device, comprising a mixing cylinder (1), a threaded cover (5) is threadedly connected to the top of the mixing cylinder (1), characterized in that: The top end of the threaded cover (5) is fixedly connected with a U-shaped plate (6), the inner top end of the U-shaped plate (6) is fixedly installed with a hydraulic cylinder (7), the bottom end of the hydraulic cylinder (7) is fixedly connected with a connecting frame (8), the connecting frame (8) comprises a U-shaped frame and a circular bottom plate, a rotating assembly (9) is installed on the connecting frame (8), the rotating assembly (9) comprises a motor (901), a rotating shaft (902), a plurality of stirring blades (903) and a fan blade (904), the motor (901) is fixedly installed on the circular bottom plate in the connecting frame (8), the output shaft of the motor (901) penetrates through the circular bottom plate in the connecting frame (8) and is fixedly connected with the rotating shaft (902), the plurality of stirring blades (903) and the fan blade (904) are all fixedly sleeved on the rotating shaft (902), and the plurality of stirring blades (903) are all located below the fan blade (904), and the bottom of the rotating shaft (902) is provided with a filter screen plate (13).

2. The succinic anhydride reaction raw material mixing device according to claim 1, characterized by: The bottom end of the threaded cover (5) is fixedly connected with two vertical rods (14), and the bottom ends of the two vertical rods (14) are fixedly connected with the filter screen plate (13).

3. The succinic anhydride reaction raw material mixing device according to claim 1, characterized by: The rotating shaft (902) is fixedly sleeved with a filter screen frame (905), and the plurality of stirring blades (903) are all located below the filter screen frame (905).

4. The succinic anhydride reaction raw material mixing device according to claim 1, characterized by: The threaded cover (5) is sleeved with a gasket (10), and the bottom end of the gasket (10) is in contact with the mixing cylinder (1).

5. The succinic anhydride reaction raw material mixing device according to claim 1, characterized by: The mixing cylinder (1) is fixedly connected with a feeding pipe (2), the feeding pipe (2) is fixedly installed with a valve (4), and the top end of the feeding pipe (2) is fixedly connected with a feeding hopper (3).

6. The succinic anhydride reaction raw material mixing device according to claim 1, characterized by: The bottom of the mixing cylinder (1) is provided with a threaded piston (12), and the threaded piston (12) is threadedly connected with the mixing cylinder (1).

7. The succinic anhydride reaction raw material mixing device according to claim 6, characterized by: The mixing cylinder (1) is fixedly installed on a supporting frame (11).

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