Amino long-chain alkyl copolymer alcoholysis reaction kettle

Abstract

The utility model belongs to the technical field of reaction kettles, and particularly relates to an amino long-chain alkyl copolymer alcoholysis reaction kettle which comprises a tank body, a main shaft is rotatably mounted in the tank body and is in transmission connection with a speed reducing motor, and a driving assembly and a push type stirrer are mounted at the bottom of the main shaft; a pawl is rotatably mounted on the peripheral side of the upper column body through a pin shaft, a reed is arranged between the pawl and the upper column body, a driven assembly is rotatably sleeved on the outer sides of the upper column body and the lower column body and comprises a lower sleeve, an upper sleeve is connected to the top end of the lower sleeve, ratchets are arranged on the inner side of the upper sleeve, and a paddle stirrer is mounted on the outer side of the lower sleeve. A push type stirrer and a paddle type stirrer are combined for use, automatic switching of stirring modes is achieved through a ratchet wheel and pawl mechanism, and the push type stirrer stirs low-viscosity reaction liquid at a high speed in the initial stage of reaction; along with the increase of the viscosity of the reaction liquid, the motor rotates reversely and the rotating speed is reduced, so that the paddle stirrer rotates at low speed to stir the liquid.

Description

Technical Field

[0001] The utility model belongs to the technical field of reactors, and particularly relates to an alcoholysis reactor for amino long-chain alkyl copolymers. Background Art

[0002] In the chemical industry, the alcoholysis of amino-long-chain alkyl copolymers is a crucial chemical process, widely used in the preparation of a variety of chemicals, including surfactants, lubricants, and coating additives. The core of this reaction lies in the fact that the amino-long-chain alkyl copolymers undergo alcoholysis in an alcoholic solvent or a mixture of alcohol and water, breaking down their molecular chains to form small molecules with specific functional groups. However, this reaction is complex and variable, particularly because the viscosity of the reaction solution can vary significantly as the reaction proceeds, placing extremely high demands on the design and operation of the agitator.

[0003] Traditional stirring methods, such as paddle stirring, anchor stirring, or turbine stirring, although they can meet the basic stirring requirements to a certain extent, often seem inadequate when faced with the challenge of viscosity changes in the alcoholysis reaction of amino long-chain alkyl copolymers. For example, in the early stages of the reaction, the reaction solution usually exhibits a low viscosity, and efficient stirring is required to promote rapid mixing and uniform distribution of the reactants. However, as the reaction progresses, the breakage of the polymer chains leads to a decrease in molecular weight, and the small molecular compounds generated at the same time may increase the polarity of the solution, causing the viscosity of the reaction solution to gradually increase. In this case, traditional stirring methods may lead to localized uneven mixing due to low stirring efficiency, and even form "dead zones", seriously affecting the reaction rate and product quality.

[0004] Traditional stirring methods often have difficulty adapting to reaction systems with varying viscosities, resulting in uneven stirring, which affects reaction efficiency and product purity. Therefore, it is particularly important to develop a reactor that can flexibly adjust the stirring method according to different viscosity conditions. Utility Model Content

[0005] In response to the above problems, the purpose of the present invention is to provide an amino long-chain alkyl copolymer alcoholysis reactor to solve the problem that traditional stirring methods are often difficult to adapt to reaction systems with changing viscosity, resulting in uneven stirring and affecting reaction efficiency and product purity.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an amino long-chain alkyl copolymer alcoholysis reactor, comprising a tank body, a main shaft rotatably installed in the tank body, the main shaft transmission connected to a reduction motor, an active component and a propulsion agitator installed at intervals above and below the bottom of the main shaft, the active component comprising an upper cylinder, a lower cylinder being provided at the bottom of the upper cylinder, a plurality of grooves adapted for mounting pawls being provided on the circumference of the upper cylinder, the pawl being rotatably installed on the upper cylinder by a pin shaft, a reed being provided between the pawl and the upper cylinder, a driven component being rotatably sheathed on the outer sides of the upper and lower cylinders, the driven component comprising a lower sleeve, the top end of the lower sleeve being connected to an upper sleeve, a ratchet being provided on the inner side of the upper sleeve, and a paddle agitator being installed on the outer side of the lower sleeve.

[0007] The beneficial effects of the utility model are as follows: a propeller stirrer and a paddle stirrer are used in combination, and automatic switching of stirring modes is achieved through a ratchet pawl mechanism. In the initial stage of the reaction, the propeller stirrer stirs the low-viscosity reaction liquid at a high speed; as the viscosity of the reaction liquid increases, the motor reverses and reduces the speed, causing the paddle stirrer to rotate at a low speed to stir the liquid.

[0008] In order to ensure that the driven component is stably installed on the active component;

[0009] As a further improvement of the above technical solution: the lower sleeve is rotatably sleeved on the outside of the lower cylinder, and the upper sleeve is rotatably sleeved on the outside of the main shaft, and the upper cylinder and the lower cylinder form a stepped column structure that is narrow at the top and wide at the bottom.

[0010] The beneficial effect of this improvement is that the driven component can be stably mounted on the stepped column composed of the lower column and the upper column, and can be stably rotated and used under the gravity of the paddle stirrer.

[0011] In order to ensure the sealing of the connection between the active component and the driven component;

[0012] As a further improvement of the above technical solution: annular grooves adapted for mounting dynamic sealing ring 1 and dynamic sealing ring 2 are respectively opened on the main shaft and the lower cylinder, and the dynamic sealing ring 1 and dynamic sealing ring 2 respectively form an interference fit with the lower sleeve and the upper sleeve.

[0013] The beneficial effect of this improvement is that the dynamic sealing ring 1 and the dynamic sealing ring 2 can play an effective sealing role during the rotation of the driven component relative to the driving component.

[0014] In order to ensure the stability of the transmission of the active component to the driven component;

[0015] As a further improvement of the above technical solution: there are multiple pawls, and the multiple pawls are arranged at equal intervals around the upper cylinder and the axis of the main shaft.

[0016] The beneficial effect of this improvement is that a plurality of circumferentially arranged pawls can stably drive the driven component to rotate in a unidirectional manner.

[0017] In order to ensure that the pawl is stably mounted in the ratchet teeth;

[0018] As a further improvement of the above technical solution: the spring is a V-shaped plate structure, one end of the spring is abutted against and fixedly connected to the upper column, and the other end of the spring is abutted against and fixedly connected to one side surface of the pawl.

[0019] The beneficial effect of this improvement is that the spring can provide elastic support for the pawl, so that the pawl can be stably clamped in the ratchet teeth.

[0020] In order to make the driven component rotate smoothly relative to the active component;

[0021] As a further improvement of the above technical solution: a thrust bearing is installed between the driven component and the active component, and the thrust bearing is sleeved on the outside of the main shaft.

[0022] The beneficial effect of this improvement is that the thrust bearing plays the role of rolling support for the driven component, effectively reducing the resistance encountered by the driven component when rotating relative to the driving component, thereby improving the durability of the device.

[0023] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a cross-sectional structural diagram of the utility model;

[0025] Figure 2 It is a structural diagram of the driven component in the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the active component in the present utility model;

[0027] Figure 4 It is an enlarged view of A in the present utility model;

[0028] In the figure: 1. Tank body; 2. Main shaft; 3. Propeller agitator; 4. Active component; 41. Upper cylinder; 42. Reed; 43. Ratchet; 44. Lower cylinder; 45. Dynamic seal ring 1; 46. Dynamic seal ring 2; 5. Driven component; 51. Lower sleeve; 52. Upper sleeve; 53. Ratchet; 6. Paddle agitator; 7. Thrust bearing; 8. Reducer motor. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.

[0030] Example 1:

[0031] like Figure 1 — Figure 4As shown: An amino long-chain alkyl copolymer alcoholysis reactor, including a tank body 1, a main shaft 2 is rotatably installed in the tank body 1, the main shaft 2 is transmission-connected to a reduction motor 8, and an active component 4 and a propeller stirrer 3 are installed at intervals above and below the bottom of the main shaft 2. The active component 4 includes an upper cylinder 41, a lower cylinder 44 is provided at the bottom of the upper cylinder 41, and a plurality of grooves for fitting pawls 43 are provided on the circumference of the upper cylinder 41. The pawl 43 is rotatably installed on the upper cylinder 41 through a pin shaft, and a reed 42 is provided between the pawl 43 and the upper cylinder 41. A driven component 5 is rotatably sleeved on the outer sides of the upper cylinder 41 and the lower cylinder 44. The driven component 5 The invention comprises a lower sleeve 51, the top of which is connected to an upper sleeve 52, a ratchet 53 being provided on the inner side of the upper sleeve 52, and a paddle stirrer 6 being installed on the outer side of the lower sleeve 51. The propeller stirrer 3 and the paddle stirrer 6 are used in combination, and the automatic switching of the stirring mode is realized by the ratchet pawl mechanism. In the early stage of the reaction, the propeller stirrer 3 stirs the low-viscosity reaction liquid at a high speed; as the viscosity of the reaction liquid increases, the motor reverses and reduces the speed, so that the paddle stirrer 6 rotates at a low speed to stir the liquid. The lower sleeve 51 is rotatably sleeved on the outer side of the lower cylinder 44, and the upper sleeve 52 is rotatably sleeved on the outer side of the main shaft 2. The upper cylinder 41 and the lower cylinder 44 form an upper The stepped column structure is narrow at the bottom and wide at the bottom. The driven component 5 can be stably mounted on the stepped column composed of the lower column 44 and the upper column 41, and can be stably rotated under the gravity of the paddle stirrer 6. The main shaft 2 and the lower column 44 are respectively provided with annular grooves for fitting dynamic sealing ring 1 45 and dynamic sealing ring 2 46. The dynamic sealing ring 1 45 and dynamic sealing ring 2 46 respectively produce interference fit with the lower sleeve 51 and the upper sleeve 52. The dynamic sealing ring 1 45 and dynamic sealing ring 2 46 can play an effective sealing role in the process of the driven component 5 rotating relative to the active component 4. The number of the pawls 43 is multiple, and the multiple pawls 43 are equidistant around the axis of the upper column 41 and the main shaft 2. The pawls 43 are arranged at intervals, and multiple circumferentially arranged pawls 43 can stably drive the driven component 5 to rotate in a unidirectional manner. The spring 42 is a V-shaped plate structure. One end of the spring 42 is abutted against and fixedly connected to the upper column 41, and the other end of the spring 42 is abutted against and fixedly connected to one side of the pawl 43. The spring 42 can provide elastic support for the pawl 43, so that the pawl 43 can be stably clamped in the ratchet 53. A thrust bearing 7 is installed between the driven component 5 and the active component 4. The thrust bearing 7 is mounted on the outside of the main shaft 2. The thrust bearing 7 plays the role of rolling support for the driven component 5, effectively reducing the resistance encountered by the driven component 5 when rotating relative to the active component 4, thereby improving the durability of the device.

[0032] The working principle of this technical solution is as follows: the forward and reverse rotation and speed control of the reduction motor 8 are all achieved through the existing electrical control method; in the initial stage of the reaction when the viscosity of the reaction liquid is low, the reduction motor 8 drives the main shaft 2 to rotate forward, and the active component 4 rotates as a whole with the main shaft 2. At this time, the pawl 43 slides and connects the ratchet 53, and the reed 42 is squeezed to produce elastic deformation, and the driven component 5 and the active component 4 produce relative rotation. The propeller stirrer 3 is driven at high speed by the active component 4, so that the low-viscosity reaction liquid in the tank body 1 circulates rapidly; in the middle and late stages of the reaction, the viscosity of the reaction liquid increases, and the operator controls the reduction motor 8 to reverse at a low speed. At this time, the pawl 43 is clamped in the ratchet 53 under the support of the reed 42, so that the active component 4 drives the driven component 5 to rotate synchronously. When the driven component 5 rotates, it drives the paddle stirrer 6 to rotate, thereby stirring the reaction liquid with higher viscosity at a low speed.

[0033] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0034] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation method of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of the present invention.

Claims

1. An alcoholysis reactor for amino long-chain alkyl copolymer, characterized in that: The invention comprises a tank body (1), a main shaft (2) is rotatably installed in the tank body (1), the main shaft (2) is transmission-connected to a reduction motor (8), an active component (4) and a propulsion stirrer (3) are installed at intervals above and below the bottom of the main shaft (2), the active component (4) comprises an upper column (41), a lower column (44) is provided at the bottom of the upper column (41), a plurality of grooves for fitting ratchet (43) are opened on the peripheral side of the upper column (41), and the ratchet (43) is connected to the upper column (41). The upper cylinder (41) is rotatably mounted on the upper cylinder (41) via a pin shaft, a spring (42) is provided between the ratchet (43) and the upper cylinder (41), and a driven assembly (5) is rotatably mounted on the outer sides of the upper cylinder (41) and the lower cylinder (44). The driven assembly (5) comprises a lower sleeve (51), the top end of the lower sleeve (51) is connected to an upper sleeve (52), a ratchet (53) is provided on the inner side of the upper sleeve (52), and a paddle stirrer (6) is installed on the outer side of the lower sleeve (51).

2. The alcoholysis reactor of an amino long-chain alkyl copolymer according to claim 1, characterized in that: The lower sleeve (51) is rotatably mounted on the outside of the lower column (44), and the upper sleeve (52) is rotatably mounted on the outside of the main shaft (2). The upper column (41) and the lower column (44) form a stepped column structure that is narrow at the top and wide at the bottom.

3. The alcoholysis reactor of an amino long-chain alkyl copolymer according to claim 1, characterized in that: The main shaft (2) and the lower cylinder (44) are respectively provided with annular grooves adapted to accommodate a first dynamic sealing ring (45) and a second dynamic sealing ring (46). The first dynamic sealing ring (45) and the second dynamic sealing ring (46) are respectively interference-fitted with the lower sleeve (51) and the upper sleeve (52).

4. The alcoholysis reactor of an amino long-chain alkyl copolymer according to claim 1, characterized in that: There are multiple ratchet pawls (43), and the multiple ratchet pawls (43) are arranged at equal intervals around the upper cylinder (41) and the axis of the main shaft (2).

5. The alcoholysis reactor of an amino long-chain alkyl copolymer according to claim 1, characterized in that: The reed (42) is a V-shaped plate structure, one end of the reed (42) is abutted against and fixedly connected to the upper column (41), and the other end of the reed (42) is abutted against and fixedly connected to one side surface of the pawl (43).

6. The alcoholysis reactor of an amino long-chain alkyl copolymer according to claim 1, characterized in that: A thrust bearing (7) is installed between the driven component (5) and the driving component (4), and the thrust bearing (7) is sleeved on the outside of the main shaft (2).

Images