Quaternary ammonium salt surfactant of benzylamine polyoxyethylene ether and preparation device of quaternary ammonium salt surfactant

Abstract

The invention relates to the technical field of preparation of quaternary ammonium salt surfactants of benzylamine polyoxyethylene ether, and discloses a quaternary ammonium salt surfactant of benzylamine polyoxyethylene ether, which comprises the following substances by mass: 10 kg of benzylamine polyoxyethylene ether and 10-15 kg of chloromethane. The preparation process of the quaternary ammonium salt surfactant of the benzylamine polyoxyethylene ether comprises the following steps: step 1, adding the benzylamine polyoxyethylene ether, and generally, the molar ratio of the benzylamine polyoxyethylene ether to chloromethane is about 1: 1.1-1: 1.5; 2, a proper amount of solvent such as methyl alcohol, ethyl alcohol or isopropyl alcohol is added to dissolve reactants and promote the reaction, and the use amount of the solvent is generally 1-3 times of the total mass of the reactants; 3, liquefying chloromethane under low-temperature stirring, then slowly dropwise adding the liquefied chloromethane, and controlling the reaction temperature to be about 40-80 DEG C and the reaction time to be 6-12 hours; and 4, after the reaction is finished, carrying out reduced pressure distillation to remove the solvent and unreacted chloromethane so as to obtain a crude product of the benzylamine polyoxyethylene ether quaternary ammonium salt surfactant.

Description

Technical Field

[0001] The present invention relates to the technical field of the preparation of quaternary ammonium salt surfactants of benzylamine polyoxyethylene ether, and specifically to a quaternary ammonium salt surfactant of benzylamine polyoxyethylene ether and its preparation device. Background Art

[0002] With the continuous improvement of the performance requirements of products in various industries, the demand for surfactants with special properties is increasing day by day. Due to the presence of polyoxyethylene chain segments in its molecular structure, the quaternary ammonium salt surfactant of benzylamine polyoxyethylene ether not only has the common properties of cationic surfactants, but also has good water solubility and mildness. In the textile industry, it can be used for fabric softening finishing, endowing the fabric with a soft and smooth hand feeling, and at the same time can also play an antistatic role, preventing the fabric from adsorbing dust during wearing and use. In daily chemical products, such as shampoos and body washes, it can play the effects of conditioning and sterilization, improving the use experience of the products. In some special industrial cleaning fields, its ability to emulsify and disperse oil stains is also highly favored.

[0003] However, in the process of using the existing quaternary ammonium salt surfactant of benzylamine polyoxyethylene ether and its preparation device, it is not convenient to make the benzylamine polyoxyethylene ether and chloromethane react quickly. The unidirectional stirring of the materials easily forms a fixed flow path, resulting in the accumulation of materials in some areas, while some areas are relatively thin, making it difficult to achieve a comprehensive and uniform mixing, limiting the collision frequency between reactant molecules and not facilitating full contact. Summary of the Invention

[0004] The purpose of the present invention is to provide a quaternary ammonium salt surfactant of benzylamine polyoxyethylene ether and its preparation device. By setting up a stirring mechanism, the problem of not being convenient to make the benzylamine polyoxyethylene ether and chloromethane react quickly is solved. The unidirectional stirring of the materials easily forms a fixed flow path, resulting in the accumulation of materials in some areas, while some areas are relatively thin, making it difficult to achieve a comprehensive and uniform mixing, limiting the collision frequency between reactant molecules and not facilitating full contact.

[0005] To solve the above technical problems, the present invention is realized through the following technical solutions: The present invention is a quaternary ammonium salt surfactant of benzylamine polyoxyethylene ether, including the following mass ratio of substances: 10 kg of benzylamine polyoxyethylene ether, -10 kg - 15 kg of chloromethane; Among them, the preparation process of the quaternary ammonium salt surfactant of benzylamine polyoxyethylene ether includes the following steps: Step 1: Add benzylamine polyoxyethylene ether. Usually, the molar ratio of benzylamine polyoxyethylene ether to chloromethane is about 1:1.1 - 1:1.5; Step 2: Add an appropriate amount of solvent, such as methanol, ethanol, or isopropyl alcohol, etc., to dissolve the reactants and promote the reaction. The amount of the solvent is generally 1 - 3 times the total mass of the reactants; Step 3: First liquefy methyl chloride and then slowly drop it while stirring at a low temperature. The reaction temperature is controlled at about 40 - 80 °C, and the reaction time is 6 - 12 hours; Step 4: After the reaction is completed, remove the solvent and unreacted methyl chloride by vacuum distillation to obtain a crude product of benzylamine polyoxyethylene ether quaternary ammonium salt surfactant.

[0006] The preparation device for the quaternary ammonium salt surfactant of benzylamine polyoxyethylene ether includes a stirring barrel, and a stirring mechanism, a speed reduction mechanism, and a gas release mechanism are arranged on the stirring barrel; A feed port is arranged at the top of the stirring barrel, and a discharge port is communicated with the bottom of the stirring barrel. The stirring mechanism includes a rotating shaft I rotatably connected to the top of the stirring barrel. A cross-shaped fixing frame is fixedly connected to the outer wall of the rotating shaft I, a semi-gear I is fixedly connected to the outer wall of the rotating shaft I, a semi-gear II is fixedly connected to the bottom of the cross-shaped fixing frame, and a rotating shaft II is rotatably connected to the inner wall of the stirring barrel.

[0007] Further, a gear I is fixedly connected to the outer wall of the rotating shaft II. The gear I meshes with the semi-gear II, the gear I meshes with the semi-gear I, and two fixing rings are fixedly connected to the outer wall of the rotating shaft II.

[0008] Further, a plurality of stirring rods are fixedly connected to the outer walls of the two fixing rings. A motor sleeve is fixedly connected to the top of the stirring barrel, a motor is fixedly connected to the inner wall of the motor sleeve, and the output shaft of the motor is fixedly connected to the rotating shaft I through a coupling.

[0009] Further, the speed reduction mechanism includes a T-shaped gear I fixedly connected to the outer wall of the rotating shaft I. A sleeve box is fixedly connected to the top of the stirring barrel, a rotating shaft III is rotatably connected to the inner wall of the sleeve box, and the front of the rotating shaft III extends outside the T-shaped gear I.

[0010] Further, a T-shaped gear II is fixedly connected to the outer wall of the T-shaped gear I. The T-shaped gear II meshes with the T-shaped gear I. A speed reducer is arranged inside the T-shaped gear I, and a rotating shaft IV is rotatably connected to the inner wall of the T-shaped gear I.

[0011] Further, a blanking port is opened at the top of the stirring barrel, a blanking pipe is fixedly connected to the top of the stirring barrel, the front of the rotating shaft IV extends into the blanking pipe, and a rotating barrel is arranged inside the blanking pipe.

[0012] Further, a material limiting port is opened on the rotating barrel, a storage barrel is fixedly connected to the top of the blanking pipe, and a filling port is arranged at the top of the storage barrel.

[0013] Furthermore, the air leakage mechanism includes a gas continuation barrel fixedly connected to the top of the stirring barrel. An air outlet is provided at the top of the stirring barrel, and an air leakage port is provided on the gas continuation barrel.

[0014] Furthermore, a pressing plate is slidably connected inside the gas continuation barrel. A telescopic rod is fixedly connected to the inner wall of the top side of the gas continuation barrel. The bottom of the telescopic rod is fixedly connected to the pressing plate. A spring is sleeved on the outer wall of the telescopic rod. The top of the spring is fixedly connected to the gas continuation barrel, and the bottom of the spring is fixedly connected to the pressing plate.

[0015] The present invention has the following beneficial effects: In the present invention, when starting stirring, benzylamine polyoxyethylene ether is added into the stirring barrel through the feeding port. Subsequently, liquefied methyl chloride is added into the storage barrel through the injection port. Then, the first motor is started. When the first motor rotates, the first rotating shaft will also rotate accordingly. When the first rotating shaft rotates, the cross-shaped fixing frame and the first half gear will also rotate accordingly. When the cross-shaped fixing frame rotates, the second half gear below will also rotate accordingly. When the second half gear rotates, it will drive the first gear on the second rotating shaft to rotate. When the first gear rotates, the second rotating shaft will drive the fixing ring to rotate. When the fixing ring rotates, the stirring rod will rotate accordingly to stir the benzylamine polyoxyethylene ether in the stirring barrel. As the second half gear rotates, it will turn to the position without teeth. Subsequently, the first half gear will engage with the first gear. At this time, the first half gear will drive the first gear to rotate in the opposite direction. When the first gear flips, the stirring rod will perform a reverse stirring on the substances in the stirring barrel. As the continuous rotation continues, the second half gear will engage with the first gear again and drive the first half gear to rotate forward. Thus, the switching between forward rotation and reverse rotation achieves sufficient stirring of the substances in the stirring barrel, enabling them to be more evenly distributed in the reaction system to increase the collision frequency. The reaction rate is related to the collision frequency between reactant molecules. Thus, the reactant molecules can meet and react faster, thereby shortening the time required for the reaction to reach equilibrium and improving production efficiency.

[0016] In the present invention, when stirring, as the first rotating shaft rotates, the first T-shaped gear will also rotate accordingly. When the first T-shaped gear rotates, it will drive the second T-shaped gear to rotate accordingly. When the second T-shaped gear rotates, the third rotating shaft will also rotate. When the third rotating shaft rotates, it will drive the speed reducer to move. When the rotational speed passes through the speed reducer, it will be decelerated. At this time, the speed reducer will transmit this rotational speed to the fourth rotating shaft. At this time, the fourth rotating shaft will drive the rotating barrel to rotate in the feeding pipe. When the rotating barrel rotates, it will drive the limiting port filled with methyl chloride to rotate to the lower side. At this time, methyl chloride will drip into the stirring barrel through the feeding port. Thus, the injection amount of methyl chloride is restricted, avoiding situations such as incomplete reaction or overreaction caused by too high local concentration of methyl chloride, helping to improve the utilization rate of reactants, reducing raw material waste, thereby improving the reaction efficiency to a certain extent and reducing production costs.

[0017] In the present invention, gas will be generated in the stirring barrel during stirring. At this time, when the air pressure is too high, the gas will escape from the air outlet, thus pushing up the pressure plate. At this time, the pressure plate will slide in the air continuation barrel. When the pressure plate rises, it will squeeze the speed reducer and the rotating shaft four. As the pressure plate slides, the air leakage port will be exposed. At this time, the air pressure will escape from the air leakage port, thus achieving the effect of constant air pressure, enabling the prevention of excessive extrusion of the sealing structure due to too high air pressure, reducing the possibility of reactant leakage, and reducing the chemical pollution and other potential safety hazards that may be caused by leakage.

[0018] Of course, it is not necessary for any product implementing the present invention to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the partial sectional structure of the present invention; Figure 3 For the present invention Figure 2 The enlarged schematic diagram of A in it; Figure 4 It is a schematic diagram of the partial sectional structure of the stirring mechanism of the present invention; Figure 5 For the present invention Figure 2 The enlarged schematic diagram of B in it; Figure 6 It is a schematic diagram of the partial sectional structure of the speed reduction mechanism of the present invention; Figure 7 For the present invention Figure 2 The enlarged schematic diagram of C in it; Figure 8 For the present invention Figure 2 The enlarged schematic diagram of D in it.

[0021] In the drawings, the list of components represented by each reference numeral is as follows: In the figure: 1, stirring barrel; 101, feed inlet; 102, discharge outlet; 2, stirring mechanism; 211, first rotating shaft; 212, cross fixing frame; 213, first half gear; 214, second half gear; 215, second rotating shaft; 216, first gear; 217, fixing ring; 218, stirring rod; 219, motor sleeve; 2110, motor; 3, speed reduction mechanism; 311, first T-shaped gear; 312, sleeve box; 313, third rotating shaft; 314, second T-shaped gear; 315, speed reducer; 316, fourth rotating shaft; 317, blanking port; 318, blanking pipe; 319, rotating barrel; 3110, material limiting port; 3111, storage barrel; 3112, injection port; 4, air release mechanism; 411, continuous air barrel; 412, air outlet; 413, air release port; 414, pressing plate; 415, telescopic rod; 416, spring. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1 - 8 As shown, the present invention is a quaternary ammonium salt surfactant of benzylamine polyoxyethylene ether and its preparation device, including the following mass ratios of substances: 10 kg of benzylamine polyoxyethylene ether, 10 kg - 15 kg of chloromethane; Among them, the preparation process of the quaternary ammonium salt surfactant of benzylamine polyoxyethylene ether includes the following steps: Step 1: Add benzylamine polyoxyethylene ether. Generally, the molar ratio of benzylamine polyoxyethylene ether to chloromethane is about 1:1.1 - 1:1.5; Step 2: Add an appropriate amount of solvent, such as methanol, ethanol or isopropanol, etc., to dissolve the reactants and promote the reaction. The amount of the solvent is generally 1 - 3 times the total mass of the reactants; Step 3: First liquefy chloromethane and then slowly drop it under low-temperature stirring. The reaction temperature is controlled at about 40 - 80 °C, and the reaction time is 6 - 12 hours; Step 4: After the reaction is completed, remove the solvent and unreacted chloromethane by vacuum distillation to obtain the crude product of the quaternary ammonium salt surfactant of benzylamine polyoxyethylene ether.

[0024] Preparation device for quaternary ammonium salt surfactant of benzylamine polyoxyethylene ether, including a stirring barrel 1, on which a stirring mechanism 2, a speed reduction mechanism 3 and a deflation mechanism 4 are arranged. At the top of the stirring barrel 1, a feed inlet 101 is provided, and at the bottom of the stirring barrel 1, a discharge outlet 102 is communicated. The stirring mechanism 2 includes a first rotating shaft 211 rotatably connected to the top of the stirring barrel 1. On the outer wall of the first rotating shaft 211, a cross-shaped fixing frame 212 is fixedly connected. On the outer wall of the first rotating shaft 211, a first half gear 213 is fixedly connected. At the bottom of the cross-shaped fixing frame 212, a second half gear 214 is fixedly connected. On the inner wall of the stirring barrel 1, a second rotating shaft 215 is rotatably connected. On the outer wall of the second rotating shaft 215, a first gear 216 is fixedly connected. The first gear 216 meshes with the second half gear 214, and the first gear 216 meshes with the first half gear 213. On the outer wall of the second rotating shaft 215, two fixing rings 217 are fixedly connected. On the outer walls of the two fixing rings 217, a number of stirring rods 218 are fixedly connected. At the top of the stirring barrel 1, a motor sleeve 219 is fixedly connected. Inside the inner wall of the motor sleeve 219, a motor 2110 is fixedly connected. The output shaft of the motor 2110 is fixedly connected to the first rotating shaft 211 through a coupling; by setting the stirring mechanism 2, it can be more evenly distributed in the reaction system to increase the collision frequency. The reaction rate is related to the collision frequency between reactant molecules. Thus, the reactant molecules can meet and react faster, thereby shortening the time required for the reaction to reach equilibrium and improving production efficiency.

[0025] The speed reduction mechanism 3 includes a first T-shaped gear 311 fixedly connected to the outer wall of the first rotating shaft 211. At the top of the stirring barrel 1, a sleeve box 312 is fixedly connected. Inside the inner wall of the sleeve box 312, a third rotating shaft 313 is rotatably connected. The front of the third rotating shaft 313 extends outside the first T-shaped gear 311. On the outer wall of the first T-shaped gear 311, a second T-shaped gear 314 is fixedly connected. The second T-shaped gear 314 meshes with the first T-shaped gear 311. Inside the first T-shaped gear 311, a speed reducer 315 is arranged. On the inner wall of the first T-shaped gear 311, a fourth rotating shaft 316 is rotatably connected. At the top of the stirring barrel 1, a blanking port 317 is opened. At the top of the stirring barrel 1, a blanking pipe 318 is fixedly connected. The front of the fourth rotating shaft 316 extends into the blanking pipe 318. Inside the blanking pipe 318, a rotating barrel 319 is arranged. On the rotating barrel 319, a material limiting port 3110 is opened. At the top of the blanking pipe 318, a storage barrel 3111 is fixedly connected. At the top of the storage barrel 3111, a filling port 3112 is provided. By setting the speed reduction mechanism 3, it avoids situations such as incomplete reaction or overreaction caused by too high local concentration of methyl chloride, helps to improve the utilization rate of reactants, reduces raw material waste, thereby improving the reaction efficiency to a certain extent and reducing production costs.

[0026] The air release mechanism 4 includes a gas continuation barrel 411 fixedly connected to the top of the stirring barrel 1. An air outlet 412 is provided at the top of the stirring barrel 1, and an air release port 413 is provided on the gas continuation barrel 411. A pressing plate 414 is slidably connected inside the gas continuation barrel 411. A telescopic rod 415 is fixedly connected to the inner wall of the top side of the gas continuation barrel 411. The bottom of the telescopic rod 415 is fixedly connected to the pressing plate 414. A spring 416 is sleeved on the outer wall of the telescopic rod 415. The top of the spring 416 is fixedly connected to the gas continuation barrel 411, and the bottom of the spring 416 is fixedly connected to the pressing plate 414. By providing the air release mechanism 4, it is possible to avoid excessive extrusion of the sealing structure due to too high air pressure, reduce the possibility of reactant leakage, and reduce chemical pollution and other potential safety hazards that may be caused by leakage.

[0027] In use, first place the device in the corresponding position. Then add benzylamine polyoxyethylene ether into the stirring barrel 1 through the feed port 101. Subsequently, add liquefied methyl chloride into the storage barrel 3111 through the injection port 3112. Then start the motor sleeve 219 on the motor 2110. When the motor sleeve 219 rotates, the first rotating shaft 211 will also rotate accordingly. When the first rotating shaft 211 rotates, the cross-shaped fixing frame 212 and the first half gear 213 will also rotate accordingly. When the cross-shaped fixing frame 212 rotates, the second half gear 214 below will also rotate accordingly. When the second half gear 214 rotates, it will drive the first gear 216 on the second rotating shaft 215 to rotate. When the first gear 216 rotates, the second rotating shaft 215 will drive the fixing ring 217 to rotate. When the fixing ring 217 rotates, the stirring rod 218 will also rotate accordingly to stir the benzylamine polyoxyethylene ether in the stirring barrel 1. As the second half gear 214 rotates, it will rotate to a position without teeth. Subsequently, the first half gear 213 will mesh with the first gear 216. At this time, the first half gear 213 will drive the first gear 216 to rotate in the opposite direction. When the first gear 216 flips, the stirring rod 218 will stir the substances in the stirring barrel 1 in the reverse direction. As the continuous rotation continues, the second half gear 214 will mesh with the first gear 216 again and drive the first half gear 213 to rotate forward. Thus, the switching between forward and reverse rotations achieves sufficient stirring of the substances in the stirring barrel 1. When stirring, as the first rotating shaft 211 rotates, the first T-shaped gear 311 will also rotate accordingly. When the first T-shaped gear 311 rotates, it will drive the second T-shaped gear 314 to rotate accordingly. When the second T-shaped gear 314 rotates, the third rotating shaft 313 will also rotate. When the third rotating shaft 313 rotates, it will drive the speed reducer 315 to move. When the rotational speed passes through the speed reducer 315, it will be decelerated. At this time, the speed reducer 315 will transmit this rotational speed to the fourth rotating shaft 316. At this time, the fourth rotating shaft 316 will drive the rotating barrel 319 to rotate in the feeding pipe 318. When the rotating barrel 319 rotates, it will drive the material-limiting port 3110 filled with methyl chloride to rotate downwards. At this time, methyl chloride will drip into the stirring barrel 1 through the discharging port 317. Thus, the limitation of the injection amount of methyl chloride is achieved. When stirring, gas will be generated in the stirring barrel 1. At this time, when the air pressure is too high, the gas will go out through the air outlet 412. Thus, the pressing plate 414 will be lifted. At this time, the pressing plate 414 will slide in the air-continuing barrel 411. When the pressing plate 414 rises, it will squeeze the speed reducer 315 and the fourth rotating shaft 316. As the pressing plate 414 slides, the air leakage port 413 will be exposed. At this time, the air pressure will be discharged from the air leakage port 413. Thus, the effect of constant air pressure will be achieved.

[0028] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. Quaternary ammonium salt surfactant of benzylamine polyoxyethylene ether, characterized in that: The mass ratio of the components is as follows: 10 kg of benzylamine polyoxyethylene ether, 10 kg - 15 kg of methyl chloride; Among them, the preparation process of the quaternary ammonium salt surfactant of the benzylamine polyoxyethylene ether includes the following steps: Step 1: Add benzylamine polyoxyethylene ether. Generally, the molar ratio of benzylamine polyoxyethylene ether to methyl chloride is about 1:1.1 - 1:1.5; Step 2: Add an appropriate amount of solvent, such as methanol, ethanol or isopropanol, etc., to dissolve the reactants and promote the reaction. The amount of the solvent is generally 1 - 3 times the total mass of the reactants; Step 3: First liquefy methyl chloride under low-temperature stirring and then slowly drop it. The reaction temperature is controlled at about 40 - 80 °C, and the reaction time is 6 - 12 hours; Step 4: After the reaction, remove the solvent and unreacted methyl chloride by vacuum distillation to obtain the crude product of benzylamine polyoxyethylene ether quaternary ammonium salt surfactant.

2. Preparation device for quaternary ammonium salt surfactant of benzylamine polyoxyethylene ether, using the quaternary ammonium salt surfactant of benzylamine polyoxyethylene ether as described in claim 1, characterized in that, It includes a stirring barrel (1), and a stirring mechanism (2), a speed reduction mechanism (3) and a deflation mechanism (4) are arranged on the stirring barrel (1); A feed port (101) is arranged at the top of the stirring barrel (1), and a discharge port (102) is communicated at the bottom of the stirring barrel (1). The stirring mechanism (2) includes a first rotating shaft (211) rotatably connected to the top of the stirring barrel (1). A cross-shaped fixing frame (212) is fixedly connected to the outer wall of the first rotating shaft (211), and a first half gear (213) is fixedly connected to the outer wall of the first rotating shaft (211). A second half gear (214) is fixedly connected to the bottom of the cross-shaped fixing frame (212). A second rotating shaft (215) is rotatably connected to the inner wall of the stirring barrel (1).

3. The preparation device of the quaternary ammonium salt surfactant of benzylamine polyoxyethylene ether according to claim 2, characterized in that: A first gear (216) is fixedly connected to the outer wall of the second rotating shaft (215). The first gear (216) meshes with the second half gear (214), and the first gear (216) meshes with the first half gear (213). Two fixing rings (217) are fixedly connected to the outer wall of the second rotating shaft (215).

4. The preparation device of the quaternary ammonium salt surfactant of benzylamine polyoxyethylene ether according to claim 3, characterized in that: A number of stirring rods (218) are fixedly connected to the outer walls of the two fixing rings (217). A motor sleeve (219) is fixedly connected to the top of the stirring barrel (1). A motor (2110) is fixedly connected to the inner wall of the motor sleeve (219). The output shaft of the motor (2110) is fixedly connected to the first rotating shaft (211) through a coupling.

5. The preparation device of the quaternary ammonium salt surfactant of benzylamine polyoxyethylene ether according to claim 4, characterized in that: The speed reduction mechanism (3) includes a first T-shaped gear (311) fixedly connected to the outer wall of the first rotating shaft (211). A sleeve box (312) is fixedly connected to the top of the stirring barrel (1). A third rotating shaft (313) is rotatably connected to the inner wall of the sleeve box (312). The front of the third rotating shaft (313) extends outside the first T-shaped gear (311).

6. The preparation device of the quaternary ammonium salt surfactant of benzylamine polyoxyethylene ether according to claim 5, characterized in that: A second T-shaped gear (314) is fixedly connected to the outer wall of the first T-shaped gear (311). The second T-shaped gear (314) meshes with the first T-shaped gear (311). A speed reducer (315) is arranged inside the first T-shaped gear (311). A fourth rotating shaft (316) is rotatably connected to the inner wall of the first T-shaped gear (311).

7. The preparation device of the quaternary ammonium salt surfactant of benzylamine polyoxyethylene ether according to claim 6, characterized in that: A feeding port (317) is formed in the top of the stirring barrel (1). A feeding pipe (318) is fixedly connected to the top of the stirring barrel (1). The front of the fourth rotating shaft (316) extends into the feeding pipe (318). A rotating barrel (319) is arranged in the feeding pipe (318).

8. The preparation device of the quaternary ammonium salt surfactant of benzylamine polyoxyethylene ether according to claim 7, characterized in that: A material limiting port (3110) is formed in the rotating barrel (319). A storage barrel (3111) is fixedly connected to the top of the feeding pipe (318). A material injection port (3112) is arranged on the top of the storage barrel (3111).

9. The preparation device of the quaternary ammonium salt surfactant of benzylamine polyoxyethylene ether according to claim 8, characterized in that: The air release mechanism (4) includes a continuous air barrel (411) fixedly connected to the top of the stirring barrel (1). An air outlet (412) is formed in the top of the stirring barrel (1). An air release port (413) is formed in the continuous air barrel (411).

10. The preparation device of the quaternary ammonium salt surfactant of benzylamine polyoxyethylene ether according to claim 9, characterized in that: A pressing plate (414) is slidably connected in the continuous air barrel (411). A telescopic rod (415) is fixedly connected to the inner wall of the top side of the continuous air barrel (411). The bottom of the telescopic rod (415) is fixedly connected to the pressing plate (414). A spring (416) is sleeved on the outer wall of the telescopic rod (415). The top of the spring (416) is fixedly connected to the continuous air barrel (411). The bottom of the spring (416) is fixedly connected to the pressing plate (414).

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