Structure for improving exhaust of exhaust hole of double-rotor continuous internal mixer

By setting a breathing channel tube and an outlet pipe at the exhaust hole and using the Bernoulli principle to control the airflow, the risk of gas accumulation and leakage at the exhaust hole of the twin-rotor continuous internal mixer is solved, the smooth and unobstructed gas flow and the smooth exhaust of the pump application scenario are achieved, the risk of gas accumulation and leakage at the exhaust hole is solved, and the stable operation of the equipment is ensured.

CN223354638UActive Publication Date: 2025-09-19QINGDAO RICH PLASTIC NEW MATERIAL
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Patent Information

Application Number
CN202422296358.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-20
Publication Date
2025-09-19
Estimated Expiration
2034-09-20

AI Technical Summary

Technical Problem

The exhaust holes of the existing twin-rotor continuous internal mixer cannot effectively handle large amounts of gas, resulting in airflow accumulation and leakage risks, affecting the material mixing effect and equipment stability.

Method used

A breathing channel tube and an air outlet pipe are set at the exhaust hole, and the Bernoulli principle is used to control the air flow rate and pressure. The breathing channel tube temporarily stores gas to balance the exhaust pressure and avoid turbulence and blockage.

Benefits of technology

It achieves smooth gas discharge, reduces leakage risk and system pressure fluctuation, and ensures stable operation of the equipment.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model provides a structure for improving exhaust of an exhaust hole of a double-rotor continuous internal mixer, which belongs to the technical field of plastic processing and comprises a base, an air channel pipe, an air outlet pipeline and an air inlet. The air inlet is formed in the lower bottom face of the base, the lower bottom face of the base is fixedly connected with an exhaust port of the internal mixer, the air inlet is used for guiding air of the exhaust port of the internal mixer to flow into the base, and the side wall of the base is fixedly connected with the airflow channel pipe and the air outlet pipeline. The gas exhaust channel pipe is used for increasing the gas exhaust buffer space, and the gas outlet pipeline is used for exhausting gas in the base; the utility model can provide buffering for instantaneous exhaust to solve the problem of air flow accumulation.
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Description

Technical Field

[0001] The utility model belongs to the technical field of plastic processing, and in particular relates to a structure for improving the exhaust of exhaust holes of a twin-rotor continuous internal mixer. Background Art

[0002] The twin-rotor continuous internal mixer is an advanced material processing machine widely used in the rubber, plastics, and composites industries. Its primary function is to efficiently mix, plasticize, and heat-treat different raw materials to meet the needs of various industrial production processes. In the plastics industry, the equipment can be used to blend different plastic materials, such as modified plastics and composites. By adjusting process parameters, customized production of plastics with specific properties can be achieved. The twin-rotor continuous internal mixer generates a large amount of volatile substances and gases during operation, especially during the high-temperature plasticizing stage. To effectively remove these gases, the equipment is designed with an intermittent exhaust mechanism. This design allows for the rapid release of accumulated gases within a specific process cycle, preventing excess gases from affecting the mixing quality and performance of the materials.

[0003] However, the existing exhaust holes cannot withstand the one-time release of a large amount of gas. A large amount of gas remaining inside the exhaust pipe will also cause the air flow to be blocked, which is likely to cause accumulation or gas leakage. Utility Model Content

[0004] In view of this, the utility model provides a structure for improving the exhaust of the exhaust holes of a twin-rotor continuous internal mixer, which can provide a buffer for instantaneous exhaust and solve the problem of airflow accumulation.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a structure for improving the exhaust of the exhaust holes of a twin-rotor continuous internal mixer, which includes a base, a breathing channel pipe, an exhaust pipe and an air inlet. The base is a hollow square structure. The air inlet is provided on the lower bottom surface of the base. The lower bottom surface of the base is fixedly connected to the exhaust port of the internal mixer. The air inlet is used to guide the gas from the exhaust port of the internal mixer to flow into the interior of the base. The breathing channel pipe and the exhaust pipe are fixedly connected to the side wall of the base. The breathing channel pipe is used to increase the exhaust buffer space, and the exhaust pipe is used to discharge the gas inside the base.

[0007] The utility model provides a structure for improving the exhaust flow of a twin-rotor continuous internal mixer, which has the following technical effects: by providing a gasping channel, the gasping channel can temporarily accommodate a large amount of gas, thereby slowing down fluctuations in exhaust flow and reducing the pressure impact of instantaneous exhaust on the right outlet pipe. At the same time, the gas flowing out of the outlet pipe can be guided to the location of the outlet pipe by natural flow, avoiding turbulence inside the base. According to Bernoulli's principle, gas has lower pressure in areas with higher flow rates. The apertures of the gasping channel and the outlet pipe are smaller than the air inlet. When gas flows through the gasping channel and the outlet pipe, the flow rate of the fluid must remain constant. When the fluid flows through the smaller aperture, the flow rate increases to maintain a constant flow rate. At the same time, when the flow rate increases, the pressure of the fluid decreases, and the outlet pipe allows the fluid to be ejected more quickly. The gasping channel temporarily stores some gas during peak exhaust, balancing the exhaust pressure, avoiding blockage of the exhaust channel and drastic fluctuations in system pressure, and reducing the risk of leakage caused by poor exhaust.

[0008] On the basis of the above technical solution, the structure of improving the exhaust of the exhaust hole of the twin-rotor continuous internal mixer of the present invention can also be improved as follows:

[0009] The breathing channel tube is a cylindrical structure, and the interior of the breathing channel tube is connected to the interior of the base.

[0010] Furthermore, the air outlet pipe is a cylindrical structure.

[0011] Furthermore, the breathing channel tube is fixedly connected to the left side wall of the base, and the air outlet pipe is fixedly connected to the right side wall of the base.

[0012] Furthermore, the position of the air outlet pipe is higher than the position of the breathing channel pipe.

[0013] Furthermore, the front side of the base is rotatably connected to one side of a quick-opening door via a pin shaft, and a buckle is fixedly connected to the quick-opening door.

[0014] Furthermore, the other side of the quick-opening door is movably connected to the side wall of the base through the buckle.

[0015] Furthermore, the diameters of the breathing channel tube and the air outlet pipe are both 80 mm.

[0016] The beneficial effect of adopting the above-mentioned improvement scheme is that the diameters of the breathing channel tube and the air outlet pipe are the same, which can avoid sudden changes in the fluid in the pipe, and helps to maintain the smooth flow of the fluid.

[0017] Furthermore, the length of the breathing channel tube is twice the diameter of the breathing channel tube.

[0018] The beneficial effect of adopting the above-mentioned improved solution is that the length of the breathing channel tube is greater than the diameter of the breathing channel tube, which can ensure that the breathing channel tube has sufficient volume to temporarily store gas and discharge it smoothly.

[0019] Furthermore, the length of the breathing channel tube is 5 times the diameter of the breathing channel tube.

[0020] Compared to the prior art, the present invention provides a structure for improving the exhaust flow of a twin-rotor continuous internal mixer. The advantages of this invention are: by providing a gasping channel, the gasping channel can temporarily accommodate large exhaust volumes, slowing exhaust flow fluctuations and reducing the pressure impact of instantaneous exhaust volume on the right outlet pipe. Furthermore, the gas flowing out of the outlet pipe can be guided to the outlet pipe location by natural flow, avoiding turbulence within the base. According to Bernoulli's principle, gas has lower pressure in areas with higher flow rates. The apertures of the gasping channel and the outlet pipe are smaller than the inlet. When gas flows through the gasping channel and the outlet pipe, the flow rate of the fluid must remain constant. When the fluid flows through the smaller aperture, the flow rate increases to maintain a constant flow rate. At the same time, as the flow rate increases, the fluid pressure decreases, allowing the outlet pipe to eject the fluid more quickly. The gasping channel temporarily stores some gas during peak exhaust, balancing the exhaust pressure, preventing blockage in the exhaust channel and drastic fluctuations in system pressure, and reducing the risk of leakage caused by poor exhaust. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 A schematic diagram of a structure for improving the exhaust of exhaust holes in a twin-rotor continuous internal mixer;

[0023] Figure 2 A front view of a first embodiment of a structure for improving exhaust from exhaust holes of a twin-rotor continuous internal mixer;

[0024] Figure 3 A cross-sectional view of a structure for improving the exhaust of a twin-rotor continuous internal mixer exhaust hole;

[0025] Figure 4 A front view of a second embodiment of a structure for improving exhaust from exhaust holes of a twin-rotor continuous internal mixer;

[0026] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0027] 10. Base; 11. Breathing channel tube; 12. Exhaust pipe; 13. Air inlet; 14. Quick-opening door; 15. Buckle. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0029] Example 1:

[0030] like Figure 1-3 As shown, it is a first embodiment of the structure of improving the exhaust of the exhaust hole of a twin-rotor continuous internal mixer provided by the present invention. In this embodiment, it includes a base 10, a breathing channel tube 11, an exhaust pipe 12 and an air inlet 13. The base 10 is a hollow square structure. The air inlet 13 is provided on the lower bottom surface of the base 10. The lower bottom surface of the base 10 is fixedly connected to the exhaust port of the internal mixer. The air inlet 13 is used to guide the gas from the exhaust port of the internal mixer to flow into the base 10. The side wall of the base 10 is fixedly connected with a breathing channel tube 11 and an exhaust pipe 12. The breathing channel tube 11 is used to increase the exhaust buffer space, and the exhaust pipe 12 is used to discharge the gas inside the base 10.

[0031] In the above technical solution, the breathing channel tube 11 is a cylindrical structure, and the interior of the breathing channel tube 11 is connected to the interior of the base 10 .

[0032] Furthermore, in the above technical solution, the air outlet pipe 12 is a cylindrical structure.

[0033] Furthermore, in the above technical solution, the breathing channel tube 11 is fixedly connected to the left side wall of the base 10 , and the air outlet pipe 12 is fixedly connected to the right side wall of the base 10 .

[0034] Furthermore, in the above technical solution, the position of the air outlet pipe 12 is higher than the position of the breathing channel pipe 11.

[0035] Furthermore, in the above technical solution, the front side of the base 10 is rotatably connected to one side of the quick-opening door 14 via a pin shaft, and a buckle 15 is fixedly connected to the quick-opening door 14 .

[0036] Furthermore, in the above technical solution, the other side of the quick-opening door 14 is movably connected to the side wall of the base 10 via a buckle 15 .

[0037] Furthermore, in the above technical solution, the diameters of the breathing channel tube 11 and the air outlet pipe 12 are both 80 mm.

[0038] Furthermore, in the above technical solution, the length of the breathing channel tube 11 is twice the diameter of the breathing channel tube 11 .

[0039] Example 2:

[0040] like Figure 4 1 is a second embodiment of a structure for improving the exhaust of a twin-rotor continuous internal mixer provided by the present invention. In this embodiment, the length of the gasping channel tube 11 is 5 times the diameter of the gasping channel tube 11 .

[0041] When not improved, the air flow enters the interior of the base 10 through the air inlet 13, and all the gas entering the base 10 is discharged to the outside through the air outlet pipe 12. Since the exhaust of the internal mixer is intermittent and large-scale exhaust, the air outlet pipe 12 sometimes cannot completely exhaust the gas at one time, which may cause smoke leakage.

[0042] After the improvement, the first part of the gas enters the base 10 through the air inlet 13 and is discharged from the right side of the air outlet pipe 12 from bottom to top according to the original flow direction. The second part of the gas enters the left side of the breathing channel pipe 11 from bottom to top. The second part of the gas generates a back-and-forth flow in the breathing channel pipe 11. After entering the breathing channel pipe 11, it flows back to the inside of the base 10 from the breathing channel pipe 11. The first part of the gas carries the second part of the gas upward and is discharged through the air outlet pipe 12. The breathing channel pipe 11 has a buffering effect on the gas, making the airflow output smoother, achieving instantaneous exhaust with buffering, no leakage, and smooth exhaust without blockage. The design of the quick-opening door 14 and the buckle 15 makes it easy to open the base 10 for maintenance.

[0043] Specifically, the principle of the present utility model is as follows: after the improvement, the first part of the gas enters the base 10 through the air inlet 13 and is discharged from the air outlet pipe 12 on the right side from bottom to top according to the original flow direction. The second part of the gas enters the breathing channel pipe 11 on the left side from bottom right to top. The second part of the gas generates a back-and-forth flow in the breathing channel pipe 11, and after entering the breathing channel pipe 11, it flows back from the breathing channel pipe 11 to the inside of the base 10. The first part of the gas carries the second part of the gas upward and is then discharged through the air outlet pipe 12. The breathing channel pipe 11 has a buffering effect on the gas, making the airflow output smoother, achieving instantaneous exhaust with buffering, no leakage, and smooth exhaust without blockage. The design of the quick-opening door 14 and the buckle 15 makes it easy to open the base 10 for maintenance.

Claims

1. A structure for improving the exhaust of the exhaust hole of a twin-rotor continuous internal mixer, characterized in that: The invention comprises a base (10), a breathing channel tube (11), an air outlet pipe (12) and an air inlet (13), wherein the base (10) is a hollow square structure, the air inlet (13) is provided on the lower bottom surface of the base (10), the lower bottom surface of the base (10) is fixedly connected to the exhaust port of the internal mixer, the air inlet (13) is used to guide the gas from the exhaust port of the internal mixer to flow into the interior of the base (10), the breathing channel tube (11) and the air outlet pipe (12) are fixedly connected to the side wall of the base (10), the breathing channel tube (11) is used to increase the exhaust buffer space, and the air outlet pipe (12) is used to discharge the gas inside the base (10).

2. The structure for improving the exhaust of the exhaust holes of a twin-rotor continuous internal mixer according to claim 1, characterized in that: The breathing channel tube (11) is a cylindrical structure, and the interior of the breathing channel tube (11) is connected to the interior of the base (10).

3. The structure for improving the exhaust of the exhaust holes of a twin-rotor continuous internal mixer according to claim 2, characterized in that: The air outlet pipe (12) is a cylindrical structure.

4. The structure for improving the exhaust of the exhaust holes of a twin-rotor continuous internal mixer according to claim 3, characterized in that: The breathing channel tube (11) is fixedly connected to the left side wall of the base (10), and the air outlet pipe (12) is fixedly connected to the right side wall of the base (10).

5. The structure for improving the exhaust of the exhaust holes of a twin-rotor continuous internal mixer according to claim 4, characterized in that: The position of the air outlet pipe (12) is higher than the position of the breathing channel pipe (11).

6. The structure for improving the exhaust of the exhaust holes of a twin-rotor continuous internal mixer according to claim 5, characterized in that: The front side of the base (10) is rotatably connected to one side of a quick-opening door (14) via a pin shaft, and a buckle (15) is fixedly connected to the quick-opening door (14).

7. The structure for improving the exhaust of the exhaust holes of a twin-rotor continuous internal mixer according to claim 6, characterized in that: The other side of the quick-opening door (14) is movably connected to the side wall of the base (10) via the buckle (15).

8. The structure for improving the exhaust of the exhaust holes of a twin-rotor continuous internal mixer according to claim 7, characterized in that: The diameters of the breathing channel tube (11) and the air outlet pipe (12) are both 80 mm.

9. The structure for improving the exhaust of the exhaust holes of a twin-rotor continuous internal mixer according to claim 8, characterized in that: The length of the breathing channel tube (11) is twice the diameter of the breathing channel tube (11).

10. The structure for improving the exhaust of the exhaust holes of a twin-rotor continuous internal mixer according to claim 9, characterized in that: The length of the breathing channel tube (11) is 5 times the diameter of the breathing channel tube (11).