Two-stage dynamic mixer

Abstract

The utility model relates to the technical field of dynamic mixing technical devices, and particularly discloses a two-stage dynamic mixer which comprises a base, a material heating device; the mixer comprises a first-stage dynamic mixer and a second-stage dynamic mixer; the double-output-shaft speed reducer is located at the top of the base and located in the middle of the base, the first output end of the double-output-shaft speed reducer is connected with the first-stage dynamic mixer through a first connecting body, and the second output end of the double-output-shaft speed reducer is connected with the second-stage dynamic mixer through a second connecting body; the motor is located on the other side of the top of the base, and the output end of the motor is connected with the double-output-shaft speed reducer; and a control device. According to the two-stage dynamic mixer disclosed by the utility model, the accurate control on the mixing process is realized through intelligent and automatic means, the mixing efficiency and the mixing quality are improved, and the high requirements of modern industrial production on mixing equipment are met.

Description

Technical Field

[0001] The utility model relates to the technical field of dynamic mixing technology devices, in particular to a two-stage dynamic mixer. Background Art

[0002] The materials used in the polymer molding process are usually composed of different polymers, fillers, additives, etc., so mixing is an essential stage in the polymer molding process. Polymer materials are usually mixed by mixing the components in a continuous mixing device or an intermittent mixing device. Currently, most mixers used in industry are single-type mixers, and are mostly designed for use in the petrochemical, oil, mining and metallurgy industries. If this type of mixer is used in the viscose industry, a low-viscosity mixer will result in a short flow time and a small pressure drop, but the number of mixing times will not meet the requirements and the mixing will be uneven. If a high-viscosity mixer is used, the number of viscose mixing times will increase, but the pressure drop will be large, the degree of maturity will vary greatly, and the quality of the finished product will be affected. Moreover, the viscosity of the viscose varies greatly, so it is not suitable for use.

[0003] At present, static mixers are generally used to mix different fluids. The mixing unit fixed in the tube is used to change the flow state of the fluid in the tube to achieve good dispersion and sufficient mixing between different fluids. In order to achieve the mixing effect, the static mixer requires a relatively large volume, which increases the pressure drop. The static mixer only changes the flow state of the fluid itself in the tube, has poor mixing effect, cannot be disassembled, and is not easy to clean.

[0004] Dynamic mixers currently lack a dedicated manufacturer in China, creating a domestic gap. Their dynamic mixer units are immature and cannot produce colored yarns. Some dynamic mixers are also unsuitable for high-temperature, high-pressure melts. While there are prefabricated dynamic mixers available on the international market, market information indicates that the company's production scale is small, the product is expensive, and maintenance is difficult, resulting in limited use.

[0005] At present, the existing dynamic mixers on the market are mainly based on single-stage mixing, that is, one inlet and one outlet. In order to reduce the pressure drop, the pipe path is generally short. In some special working conditions, the short pipe path may not achieve the required mixing effect. Often, a single-stage dynamic mixer plus a static mixer is used. Another option is to connect two single-stage dynamic mixers in series. No matter which solution is used, it occupies a large area and consumes a lot of energy, and is expensive.

[0006] Therefore, how to solve the problems of uneven mixing, large pressure drop, high cost and difficult maintenance of existing mixers has become a technical problem that those skilled in the art need to solve urgently. Utility Model Content

[0007] In view of this, the utility model aims to solve the problems of uneven mixing, large pressure drop, high cost and difficult maintenance of the existing mixer by proposing a two-stage dynamic mixer.

[0008] The utility model provides a two-stage dynamic mixer, comprising:

[0009] base;

[0010] A material heating device is located on the side of the base and is detachably connected to the base;

[0011] A mixer, the mixer comprising a primary dynamic mixer and a secondary dynamic mixer, the primary dynamic mixer and the secondary dynamic mixer being arranged on one side of the top of the base;

[0012] a dual-output shaft reducer located on the top and in the middle of the base, wherein a first output end of the dual-output shaft reducer is connected to the primary dynamic mixer via a first connector, and a second output end of the dual-output shaft reducer is connected to the secondary dynamic mixer via a second connector;

[0013] a motor, located on the other side of the top of the base, wherein the output end of the motor is connected to the dual-output shaft reducer;

[0014] The control device is located on the side of the base and is connected to the material heating device, the first-stage dynamic mixer, the second-stage dynamic mixer, the dual-output shaft reducer and the motor.

[0015] Furthermore, the first-stage dynamic mixer comprises:

[0016] a first shell;

[0017] A first main shaft is arranged in a direction parallel to the length direction of the first housing, the first main shaft includes a first large diameter section and a first small diameter section, one end of the first large diameter section is connected to the first output end of the dual-output shaft reducer, and the other end of the first large diameter section extends into the interior of the first housing and is connected to the first small diameter section; wherein a mixing cavity is formed between the first small diameter section and the first housing;

[0018] a first inlet, which is provided on one side of the first shell along the length direction of the first shell, and is located on a side of the first small-diameter section close to the first large-diameter section;

[0019] a first outlet, which is provided at one end of the first shell away from the first connector, wherein a first discharge nozzle is provided inside the first outlet, and the first discharge nozzle is connected to the other end of the first small-diameter section;

[0020] first propelling teeth, uniformly arranged on one side of the first small-diameter segment along the axial direction of the first small-diameter segment, with one end of the first propelling teeth connected to the first large-diameter segment and the other end of the first propelling teeth facing the mixing chamber;

[0021] first movable teeth are evenly arranged on the other side of the first small-diameter segment along the axial direction of the first small-diameter segment, and the first movable teeth are located in the mixing cavity;

[0022] The first stator teeth are evenly arranged on the inner side wall of the mixing cavity along the axial direction of the first small-diameter section, and the first stator teeth are matched with the first movable teeth.

[0023] Furthermore, the two-stage dynamic mixer comprises:

[0024] a second shell;

[0025] a second main shaft arranged in a direction parallel to the length direction of the second housing, the second main shaft comprising a second large diameter section and a second small diameter section, one end of the second large diameter section being connected to the output end of the dual-output shaft reducer, and the other end of the second large diameter section extending into the interior of the second housing and connected to the second small diameter section; wherein a mixing cavity is formed between the second small diameter section and the second housing;

[0026] a second inlet, which is provided on one side of the second shell along the length direction of the second shell, and is located on a side of the second small diameter section close to the second large diameter section;

[0027] A second outlet is provided at an end of the second shell away from the second connector, a second discharge nozzle is provided inside the second outlet, and the second discharge nozzle is connected to the other end of the second small-diameter section;

[0028] second propelling teeth, evenly arranged on one side of the second small diameter segment along the axial direction of the second small diameter segment, with one end of the second propelling teeth connected to the second large diameter segment, and the other end of the second propelling teeth facing the mixing chamber;

[0029] second movable teeth are evenly arranged on the other side of the second small-diameter segment along the axial direction of the second small-diameter segment, and the second movable teeth are located in the mixing chamber;

[0030] The second stator teeth are evenly arranged on the inner side wall of the mixing cavity along the axial direction of the second small-diameter section, and the second stator teeth are matched with the second movable teeth.

[0031] Furthermore, the first connector includes:

[0032] a first connecting frame, arranged between the dual-output shaft reducer and the first housing in a direction parallel to the length direction of the first housing, with both ends of the first connecting frame being connected to the dual-output shaft reducer and the first housing respectively;

[0033] The first cooling jacket is spirally sealed and is sleeved on the outside of the first large-diameter section and located between the first connecting frame and the first shell.

[0034] Furthermore, the first connector further comprises:

[0035] The first packing sealing layer is sleeved on the outside of the first large diameter section and is located inside the first connecting frame. The first packing sealing layer is located at one end of the first large diameter section close to the first shell.

[0036] Furthermore, the second connector includes:

[0037] a second connecting frame, arranged between the dual-output shaft reducer and the second housing in a direction parallel to the length direction of the second housing, with both ends of the second connecting frame being connected to the dual-output shaft reducer and the second housing respectively;

[0038] The second cooling jacket is spirally sealed and is sleeved on the outside of the second large-diameter section and located between the second connecting frame and the second shell.

[0039] Furthermore, the second connector includes:

[0040] The second packing sealing layer is sleeved on the outside of the second large diameter section, and the second packing sealing layer is located inside the second connecting frame. The second packing sealing layer is located at one end of the second large diameter section close to the second shell.

[0041] Furthermore, the first inlet and the second inlet are arranged to face each other, or the first inlet and the second inlet are arranged to face each other.

[0042] Furthermore, the control device includes:

[0043] A central processing unit is located inside the control device and is connected to the material heating device, the first-stage dynamic mixer, the second-stage dynamic mixer, the dual-output shaft reducer, and the motor;

[0044] a memory, located inside the control device and connected to the central processing unit;

[0045] A display screen is located on a side of the control device away from the base, and the display screen is connected to the central processing unit.

[0046] Furthermore, the two-stage dynamic mixer further comprises:

[0047] There are several temperature sensors, and the several temperature sensors are evenly arranged inside the material heating device.

[0048] Compared with the existing technology, the beneficial effect of the present invention is that the two-stage dynamic mixer provided by the present invention realizes precise control of the mixing process through intelligent and automated means, improves mixing efficiency and mixing quality, and meets the high requirements of modern industrial production for mixing equipment.

[0049] The base of the two-stage dynamic mixer provided by the utility model is used to provide stable support, which can ensure the stability of the entire device during operation; the material heating device can evenly heat the material to be mixed, and the material heating device is internally provided with a temperature sensor for measuring the temperature of the material, thereby realizing precise control of the temperature; the mixer includes a first-stage dynamic mixer and a second-stage dynamic mixer, which are used to achieve efficient mixing of materials; the dual-output shaft reducer can provide stable power output, ensuring the smooth operation of the mixer; the motor serves as a power source to provide power for the entire system; the control device is responsible for the intelligent control of the entire mixer, ensuring the accuracy and efficiency of the mixing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 A schematic diagram of the overall structure of a two-stage dynamic mixer provided in an embodiment of the present utility model;

[0051] Figure 2 A schematic structural diagram of a first-stage dynamic mixer and a first connector of a two-stage dynamic mixer provided in an embodiment of the present utility model;

[0052] Figure 3 This is a structural schematic diagram of the first movable teeth and the first stator teeth of the two-stage dynamic mixer provided in an embodiment of the present utility model.

[0053] In the figure; 100, base; 110, first-stage dynamic mixer; 111, first shell; 1121, first large-diameter section; 1122, first small-diameter section; 113, mixing chamber; 114, first inlet; 115, first outlet; 1151, first discharge nozzle; 116, first propulsion tooth; 117, first mover tooth; 118, first stator tooth; 120, second-stage dynamic mixer; 121, second inlet; 122, second outlet; 130, dual-output shaft reducer; 140, motor; 150, control device; 160, first connector; 161, first connecting frame; 162, first cooling jacket spiral seal; 163, first packing sealing layer; 170, first connector. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0055] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0056] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0057] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0058] See Figure 1-3As shown, this embodiment provides a two-stage dynamic mixer, comprising: a base 100; a material heating device, located on the side of the base 100, and detachably connected to the base 100; a mixer, the mixer comprising a primary dynamic mixer 110 and a secondary dynamic mixer 120, the primary dynamic mixer 110 and the secondary dynamic mixer 120 being arranged on one side of the top of the base 100; a dual-output shaft reducer 130, located on the top of the base 100 and in the middle of the base 100, with the first output end of the dual-output shaft reducer 130 It is connected to the first-stage dynamic mixer 110 through the first connector 170160, and the second output end of the dual-output shaft reducer 130 is connected to the second-stage dynamic mixer 120 through the second connector; the motor 140 is located on the other side of the top of the base 100, and the output end of the motor 140 is connected to the dual-output shaft reducer 130; the control device 150 is located on the side of the base 100, and is connected to the material heating device, the first-stage dynamic mixer 110, the second-stage dynamic mixer 120, the dual-output shaft reducer 130 and the motor 140.

[0059] It can be seen that the base 100 is used to provide stable support, which can ensure the stability of the entire device during operation; the material heating device can evenly heat the material to be mixed, and the material heating device has a temperature sensor inside to measure the temperature of the material, thereby achieving precise control of the temperature; the mixer includes a first-level dynamic mixer 110 and a second-level dynamic mixer 120, which are used to achieve efficient mixing of materials; the dual-output shaft reducer 130 can provide stable power output to ensure smooth operation of the mixer; the motor 140 serves as a power source to provide power for the entire system; the control device 150 is responsible for the intelligent control of the entire mixer to ensure the accuracy and efficiency of the mixing process.

[0060] Specifically, the first-stage dynamic mixer 110 includes: a first shell 111; a first main shaft, which is arranged in a direction parallel to the length direction of the first shell 111, and the first main shaft includes a first large diameter section 1121 and a first small diameter section 1122, one end of the first large diameter section 1121 is connected to the first output end of the dual-output shaft reducer 130, and the other end of the first large diameter section 1121 extends into the interior of the first shell 111 and is connected to the first small diameter section 1122; wherein, a mixing chamber 113 is formed between the first small diameter section 1122 and the first shell 111; a first inlet 114, which is opened on one side of the first shell 111 along the length direction of the first shell 111, and the first inlet 114 is located on the side of the first small diameter section 1122 close to the first large diameter section 1121; a first outlet 115, which is opened in the first shell 111 away from the first connector At one end of 170160, a first discharge nozzle 1151 is provided inside the first outlet 115, and the first discharge nozzle 1151 is connected to the other end of the first small diameter section 1122; the first propulsion tooth 116 is evenly arranged on one side of the first small diameter section 1122 along the axial direction of the first small diameter section 1122, and one end of the first propulsion tooth 116 is connected to the first large diameter section 1121, and the other end of the first propulsion tooth 116 faces the mixing chamber 113; the first movable tooth 117 is evenly arranged on the other side of the first small diameter section 1122 along the axial direction of the first small diameter section 1122, and the first movable tooth 117 is located in the mixing chamber 113; the first stator tooth 118 is evenly arranged on the inner side wall of the mixing chamber 113 along the axial direction of the first small diameter section 1122, and the first stator tooth 118 is adapted to the first movable tooth 117.

[0061] Specifically, the two-stage dynamic mixer 120 includes: a second shell; a second main shaft, which is arranged in a direction parallel to the length direction of the second shell, and the second main shaft includes a second large diameter section and a second small diameter section, one end of the second large diameter section is connected to the output end of the dual-output shaft reducer 130, and the other end of the second large diameter section extends into the interior of the second shell and is connected to the second small diameter section; wherein a mixing chamber 113 is formed between the second small diameter section and the second shell; a second inlet 121 is opened on one side of the second shell along the length direction of the second shell, and the second inlet 121 is located on the side of the second small diameter section close to the second large diameter section; a second outlet 122 is opened on the second shell away from the second shell At one end of the second connector, a second discharge nozzle is provided inside the second outlet 122, and the second discharge nozzle is connected to the other end of the second small diameter section; the second propulsion tooth is evenly arranged on one side of the second small diameter section along the axial direction of the second small diameter section, and one end of the second propulsion tooth is connected to the second large diameter section, and the other end of the second propulsion tooth faces the mixing chamber 113; the second movable teeth are evenly arranged on the other side of the second small diameter section along the axial direction of the second small diameter section, and the second movable teeth are located in the mixing chamber 113; the second stator teeth are evenly arranged on the inner side wall of the mixing chamber 113 along the axial direction of the second small diameter section, and the second stator teeth are adapted to the second movable teeth.

[0062] It can be seen that the design of the first-stage dynamic mixer 110 and the second-stage dynamic mixer 120 enables the materials to be fully stirred and mixed during the mixing process, thereby improving the mixing efficiency and quality; the setting of the first propulsion teeth 116 and the second propulsion teeth facilitates the flow of materials in the mixing chamber 113, ensuring that the materials can pass through the mixer evenly; the adaptation design of the first movable teeth 117 and the second movable teeth and the first stator teeth 118 and the second stator teeth further enhances the mixing effect, so that the materials can be fully sheared and dispersed during the mixing process.

[0063] Specifically, the first connecting body 170160 includes: a first connecting frame 161, which is arranged in the middle of the dual output shaft reducer 130 and the first shell 111 along a direction parallel to the length direction of the first shell 111, and the two ends of the first connecting frame 161 are respectively connected to the dual output shaft reducer 130 and the first shell 111; a first cooling jacket spiral seal 162, which is sleeved on the outside of the first large diameter section 1121 and is located in the middle of the first connecting frame 161 and the first shell 111.

[0064] Specifically, the first connecting body 170160 also includes: a first filling sealing layer 163, which is mounted on the outside of the first large diameter section 1121, and the first filling sealing layer 163 is located inside the first connecting frame 161, and the first filling sealing layer 163 is located at one end of the first large diameter section 1121 close to the first shell 111.

[0065] Specifically, the second connecting body includes: a second connecting frame, which is arranged in the middle of the dual output shaft reducer 130 and the second shell in a direction parallel to the length direction of the second shell, and the two ends of the second connecting frame are respectively connected to the dual output shaft reducer 130 and the second shell; a second cooling jacket spiral seal, which is mounted on the outside of the second large diameter section and is located in the middle of the second connecting frame and the second shell.

[0066] Specifically, the second connector includes: a second filler sealing layer, which is sleeved on the outside of the second large diameter section, and the second filler sealing layer is located inside the second connecting frame, and the second filler sealing layer is located at one end of the second large diameter section close to the second shell.

[0067] It can be seen that the design of the first connector 170160 and the second connector not only ensures the stability and sealing of the mixer, but also effectively prevents the leakage of materials during the mixing process through the dual protection of the cooling jacket spiral seal and the packing sealing layer, while reducing the influence of the heat generated by friction on the mixing effect; the cooling jacket spiral seal can effectively cool the main shaft of the mixer, ensuring temperature control during the mixing process, while the packing sealing layer provides additional sealing protection, ensuring the reliability of the mixer during long-term operation.

[0068] Specifically, the first inlet 114 and the second inlet 121 are arranged to face each other, or the first inlet 114 and the second inlet 121 are arranged to face each other.

[0069] It can be seen that the first inlet 114 and the second inlet 121 are arranged opposite to each other or opposite to each other, so that the material can enter the mixer from two different directions, increasing the contact area and mixing opportunities of the material during the mixing process, thereby further improving the mixing efficiency; the inlets arranged opposite to each other allow the materials to collide with each other when entering the mixing chamber 113, increasing the shear force between the materials and contributing to the uniform mixing of the materials; and the inlets arranged opposite to each other allow the materials to form convection in the mixing chamber 113, which helps to quickly disperse and mix the materials.

[0070] Specifically, the control device 150 includes: a central processing unit, located inside the control device 150, connected to the material heating device, the first-stage dynamic mixer 110, the second-stage dynamic mixer 120, the dual-output shaft reducer 130 and the motor 140; a memory, located inside the control device 150, connected to the central processing unit; a display screen, located on the side of the control device 150 away from the base 100, and the display screen is connected to the central processing unit.

[0071] It can be seen that the design of the control device 150 enables the entire mixing process to be automatically controlled, improving the convenience and accuracy of the operation. The central processing unit, as the core of the control device 150, can monitor and adjust the working status of the mixer in real time to ensure the stability and consistency of the mixing process. The memory is used to store relevant operating procedures and parameter settings, which is convenient for optimizing and adjusting the mixing process. The display screen provides an intuitive operating interface for the operator, which can display key parameters such as the working status, temperature, and rotation speed of the mixer in real time, making it convenient for the operator to monitor and adjust. In addition, the display screen can also display fault alarm information, which is convenient for timely detection and handling of equipment failures, ensuring the continuity and safety of the production process.

[0072] Specifically, the two-stage dynamic mixer further includes: a temperature sensor, which is provided in plurality, and the plurality of temperature sensors are evenly arranged inside the material heating device.

[0073] It can be seen that the temperature sensors enable the mixer to monitor material temperature changes in real time, ensuring that the material remains within the optimal temperature range during the mixing process. These temperature sensors are evenly distributed within the material heating device and accurately measure the material temperature, providing precise temperature data to the central processing unit. Using this data, the central processing unit automatically adjusts the heating device power to maintain the material temperature within the set range, preventing excessively high or low temperatures from affecting mixing quality and product quality.

[0074] In summary, the two-stage dynamic mixer provided in this embodiment achieves precise control of the mixing process through intelligent and automated means, improves mixing efficiency and mixing quality, and meets the high requirements of modern industrial production for mixing equipment.

[0075] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A two-stage dynamic mixer, characterized in that: include: base; A material heating device is located on the side of the base and is detachably connected to the base; A mixer, the mixer comprising a primary dynamic mixer and a secondary dynamic mixer, the primary dynamic mixer and the secondary dynamic mixer being arranged on one side of the top of the base; a dual-output shaft reducer located on the top and in the middle of the base, wherein a first output end of the dual-output shaft reducer is connected to the primary dynamic mixer via a first connector, and a second output end of the dual-output shaft reducer is connected to the secondary dynamic mixer via a second connector; a motor, located on the other side of the top of the base, wherein the output end of the motor is connected to the dual-output shaft reducer; The control device is located on the side of the base and is connected to the material heating device, the first-stage dynamic mixer, the second-stage dynamic mixer, the dual-output shaft reducer and the motor.

2. The two-stage dynamic mixer according to claim 1, characterized in that The first-stage dynamic mixer comprises: a first shell; A first main shaft is arranged in a direction parallel to the length direction of the first housing, the first main shaft includes a first large diameter section and a first small diameter section, one end of the first large diameter section is connected to the first output end of the dual-output shaft reducer, and the other end of the first large diameter section extends into the interior of the first housing and is connected to the first small diameter section; wherein a mixing cavity is formed between the first small diameter section and the first housing; a first inlet, which is provided on one side of the first shell along the length direction of the first shell, and is located on a side of the first small-diameter section close to the first large-diameter section; a first outlet, which is provided at one end of the first shell away from the first connector, wherein a first discharge nozzle is provided inside the first outlet, and the first discharge nozzle is connected to the other end of the first small-diameter section; first propelling teeth, uniformly arranged on one side of the first small-diameter segment along the axial direction of the first small-diameter segment, with one end of the first propelling teeth connected to the first large-diameter segment and the other end of the first propelling teeth facing the mixing chamber; first movable teeth are evenly arranged on the other side of the first small-diameter segment along the axial direction of the first small-diameter segment, and the first movable teeth are located in the mixing cavity; The first stator teeth are evenly arranged on the inner side wall of the mixing cavity along the axial direction of the first small-diameter section, and the first stator teeth are matched with the first movable teeth.

3. The two-stage dynamic mixer according to claim 2, characterized in that The two-stage dynamic mixer comprises: a second shell; a second main shaft arranged in a direction parallel to the length direction of the second housing, the second main shaft comprising a second large diameter section and a second small diameter section, one end of the second large diameter section being connected to the output end of the dual-output shaft reducer, and the other end of the second large diameter section extending into the interior of the second housing and connected to the second small diameter section; wherein a mixing cavity is formed between the second small diameter section and the second housing; a second inlet, which is provided on one side of the second shell along the length direction of the second shell, and is located on a side of the second small diameter section close to the second large diameter section; A second outlet is provided at an end of the second shell away from the second connector, a second discharge nozzle is provided inside the second outlet, and the second discharge nozzle is connected to the other end of the second small-diameter section; second propelling teeth, evenly arranged on one side of the second small diameter segment along the axial direction of the second small diameter segment, with one end of the second propelling teeth connected to the second large diameter segment, and the other end of the second propelling teeth facing the mixing chamber; second movable teeth are evenly arranged on the other side of the second small-diameter segment along the axial direction of the second small-diameter segment, and the second movable teeth are located in the mixing chamber; The second stator teeth are evenly arranged on the inner side wall of the mixing cavity along the axial direction of the second small-diameter section, and the second stator teeth are matched with the second movable teeth.

4. The two-stage dynamic mixer according to claim 3, characterized in that The first connector includes: a first connecting frame, arranged between the dual-output shaft reducer and the first housing in a direction parallel to the length direction of the first housing, with both ends of the first connecting frame being connected to the dual-output shaft reducer and the first housing respectively; The first cooling jacket is spirally sealed and is sleeved on the outside of the first large-diameter section and located between the first connecting frame and the first shell.

5. The two-stage dynamic mixer according to claim 4, characterized in that The first connector further comprises: The first packing sealing layer is sleeved on the outside of the first large diameter section and is located inside the first connecting frame. The first packing sealing layer is located at one end of the first large diameter section close to the first shell.

6. The two-stage dynamic mixer according to claim 5, characterized in that The second connector includes: a second connecting frame, arranged between the dual-output shaft reducer and the second housing in a direction parallel to the length direction of the second housing, with both ends of the second connecting frame being connected to the dual-output shaft reducer and the second housing respectively; The second cooling jacket is spirally sealed and is sleeved on the outside of the second large-diameter section and located between the second connecting frame and the second shell.

7. The two-stage dynamic mixer according to claim 6, characterized in that The second connector includes: The second packing sealing layer is sleeved on the outside of the second large diameter section, and the second packing sealing layer is located inside the second connecting frame. The second packing sealing layer is located at one end of the second large diameter section close to the second shell.

8. The two-stage dynamic mixer according to claim 7, characterized in that The first inlet and the second inlet are arranged to face each other, or the first inlet and the second inlet are arranged to face each other.

9. The two-stage dynamic mixer according to claim 8, characterized in that The control device comprises: A central processing unit is located inside the control device and is connected to the material heating device, the first-stage dynamic mixer, the second-stage dynamic mixer, the dual-output shaft reducer, and the motor; a memory, located inside the control device and connected to the central processing unit; A display screen is located on a side of the control device away from the base, and the display screen is connected to the central processing unit.

10. The two-stage dynamic mixer according to claim 9, characterized in that The two-stage dynamic mixer also includes: There are several temperature sensors, and the several temperature sensors are evenly arranged inside the material heating device.

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