Internal mixer auger liquid cooling system

Abstract

The utility model discloses an internal mixer auger liquid cooling system, which relates to the technical field of internal mixers, and comprises an internal mixer, an auger is rotatably connected in the internal mixer, and the end part of the auger extends out of the internal mixer and is rotatably connected with a water inlet pipe and a water outlet pipe through a rotary joint. And a cavity is reserved in the auger. According to the internal mixer auger liquid cooling system, cooling liquid provided by external water supply equipment is injected into the inner cavity of the auger through the water inlet pipe, the cooling liquid fully absorbs heat of the auger under the heat conduction effect, the temperature is increased, then the cooling liquid is discharged through the water outlet channel and the water outlet pipe, and efficient circulating cooling is formed. The rotating joint is ingeniously arranged, so that the water inlet pipe and the water outlet pipe do not rotate along with the auger, and stable circulation of cooling liquid is guaranteed. Therefore, the temperature of the auger can be quickly reduced, the auger is ensured to work at a proper temperature, the internal mixing quality of materials is improved, the stable performance of products is ensured, the service life of the auger is greatly prolonged, the maintenance and replacement cost of equipment is reduced, and the overall production efficiency and economic benefits are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of internal mixer, concretely to a liquid cooling system of internal mixer auger. BACKGROUND

[0002] In the processing industry of rubber, plastic and other polymer materials, the internal mixer is a kind of crucial equipment, and the auger, as the core working component of the internal mixer, undertakes the key task of stirring, mixing and internal mixing of materials. In the internal mixing process, the auger needs to be in frequent contact with the materials and strong friction, and at the same time, it is also constantly rotating. This high-intensity working state inevitably causes the auger to generate a large amount of heat.

[0003] With the continuous growth of the internal mixing time, the heat generated by the auger will continue to accumulate, causing the temperature of the auger to rise sharply. The excessively high temperature not only affects the internal mixing effect of the materials, changes the physical and chemical properties of the materials, and cannot achieve the expected processing quality, but also causes serious damage to the structure and performance of the auger itself. For example, high temperature may cause thermal deformation of the metal material of the auger, reduce its strength and hardness, shorten the service life of the auger, and increase the maintenance and replacement cost of the equipment. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a liquid cooling system of internal mixer auger, which solves the problem of excessively high temperature of the internal mixer auger in the internal mixing process due to frictional heat.

[0005] To achieve the above purpose, the utility model realizes the following technical scheme: a liquid cooling system of internal mixer auger, comprising an internal mixer, a rotating auger connected inside the internal mixer, the auger end extending from the internal mixer, and being connected to a water inlet pipe and a water outlet pipe through a rotary joint, a cavity reserved inside the auger, the water inlet pipe injecting cooling liquid into the cavity through the rotary joint to cool and cool the auger, and the cooling liquid being discharged from the cavity through the rotary joint and the water outlet pipe.

[0006] Further, the rotary joint comprises an outer shell body fixedly connected with the end of the auger, and an inner shaft body rotatably connected inside the outer shell body.

[0007] Further, the inner shaft body is provided with a water inlet channel and a water outlet channel respectively, the water inlet channel is connected with the water inlet pipe, and the water outlet channel is connected with the water outlet pipe.

[0008] Further, the outer shell body and the inner shaft body are respectively provided with a bearing and a shaft seal, the end of the inner shaft body is provided with a conical structure, the conical structure extends into the cavity, and together with the shaft seal, prevents the cooling liquid in the cavity from flowing back between the outer shell body and the inner shaft body.

[0009] Further, the inner shaft body end is respectively connected with a water inlet joint and a water outlet joint, the water inlet channel is communicated with the water inlet joint, the water outlet channel is communicated with the water outlet joint, and the water outlet end of the water inlet pipe and the water inlet end of the water outlet pipe are correspondingly sleeved outside the water inlet joint and the water outlet joint.

[0010] Further, the outer shell and the end of the auger are connected and fixed through a flange plate.

[0011] The utility model provides a kind of internal mixer auger liquid cooling system.Compared with prior art, it has the following beneficial effects:

[0012] The internal mixer auger liquid cooling system injects the coolant provided by external water supply equipment into the internal cavity of the auger using the water inlet pipe, fully absorbs the heat of the auger under the heat conduction effect, and then discharges through the water outlet channel and the water outlet pipe after warming up, forming efficient circulating cooling.The ingenious arrangement of the rotary joint makes the water inlet pipe and the water outlet pipe not rotate with the auger, ensuring stable circulation of the coolant.In this way, the temperature of the auger can be quickly reduced to ensure its operation at a suitable temperature, not only improving the material mixing quality and ensuring the stability of product performance, but also greatly prolonging the service life of the auger, reducing equipment maintenance and replacement costs, and improving overall production efficiency and economic benefits. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the auger connecting water inlet pipe and water outlet pipe through rotary joint in the utility model;

[0015] Figure 3 It is a split structural schematic diagram of the rotary joint in the utility model;

[0016] Figure 4 It is an assembly structural schematic diagram of the rotary joint in the utility model;

[0017] Figure 5 It is a structural schematic diagram of the inner shaft body in the utility model;

[0018] Figure 6 It is a half sectional view of the utility model Figure 2 .

[0019] In the figure: 1, internal mixer; 2, auger; 21, cavity; 3, rotary joint; 31, outer shell; 32, inner shaft body; 321, water inlet channel; 322, water outlet channel; 323, water inlet joint; 324, water outlet joint; 33, bearing; 34, shaft seal; 35, end cover; 4, water inlet pipe; 5, water outlet pipe; 6, flange plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0021] Please refer to Figures 1-6 The present application provides a technical solution: a liquid cooling system for a kneader auger, mainly used for cooling the auger in the kneader, to solve the problem that the auger generates a large amount of heat due to friction during the kneading process, resulting in temperature rise and affecting the kneading effect and the service life of the equipment. The system includes a kneader, an auger, a rotary joint, a water inlet pipe, a water outlet pipe and other components. Through the circulation of the cooling liquid in the internal cavity of the auger, heat exchange and heat removal are achieved, thereby achieving the purpose of cooling and temperature reduction.

[0022] The specific structure and working principle of the kneader 1 are known in the art, and the auger 2 is rotatably connected inside the kneader 1. When the auger 2 is used for kneading materials, a large amount of heat will be generated due to friction between the auger and the materials and the rotation of the auger itself. The end of the auger 2 extends from the inside of the kneader 1 to connect with the external cooling system;

[0023] The rotary joint 3 is a key component connecting the auger 2, the inlet pipe 4, and the outlet pipe 5. It includes an outer shell 31 and an inner shaft 32. The outer shell 31 is fixedly connected to the end of the auger 2, and the outer shell 31 is connected to the end of the auger 2 via a flange 6. This connection method is not only robust and reliable but also facilitates disassembly and maintenance. When the rotary joint malfunctions or requires maintenance, it can be quickly removed from the auger. The inner shaft 32 is rotatably connected inside the outer shell 31. The inner shaft 32 has an inlet channel 321 and an outlet channel 322. The inlet channel 321 connects to the inlet pipe 4, and the outlet channel 322 connects to the outlet pipe 5. The ends of the inner shaft 32 are connected to an inlet connector 323 and an outlet connector 324, respectively. The inlet channel 321 communicates with the inlet connector 323, and the outlet channel 322 communicates with the outlet connector 324. The outlet end of the inlet pipe 4 and the inlet end of the outlet pipe 5 are respectively fitted onto the outside of the inlet connector 323 and the outlet connector 324. This connection method realizes the flow path of coolant from the inlet pipe to the inlet channel, then to the cavity, and finally from the outlet channel to the outlet pipe. A bearing 33 and a shaft seal 34 are respectively installed between the outer shell 31 and the inner shaft 32. The bearing 33 supports the rotation of the inner shaft 32, ensuring that the inner shaft 32 can rotate smoothly and stably within the outer shell 31. The shaft seal 34 acts as a seal, preventing coolant leakage from the gap between the outer shell 31 and the inner shaft 32. The end of the inner shaft 32 is designed with a tapered structure that extends into the cavity 21. This tapered structure, together with the shaft seal 34, prevents coolant in the cavity 21 from flowing back between the outer shell 31 and the inner shaft 32, ensuring the correct circulation direction of the coolant and improving cooling efficiency.

[0024] The inlet pipe 4 and the outlet pipe 5 are connected to the cavity 21 inside the screw conveyor 2 via a rotary joint 3. The inlet pipe 4 is used to inject coolant supplied by an external water supply device into the cavity 21, while the outlet pipe 5 is used to discharge the coolant that has absorbed heat from the screw conveyor 2 from the system.

[0025] A cavity 21 is pre-formed inside the auger 2, which is the space for coolant circulation. Coolant enters the inlet channel 321 from the inlet pipe 4, then enters the cavity 21 through the inlet connector 323. In the cavity 21, it exchanges heat with the auger 2, absorbing heat from it. After absorbing heat, it enters the outlet channel 322 through the outlet connector 324, and finally exits from the outlet pipe 5.

[0026] When the system is working:

[0027] Coolant injection: When the system is working, start the external water supply equipment to inject coolant into the inlet pipe 4. The coolant enters the inlet channel 321 along the inlet pipe 4, and then flows into the cavity 21 inside the screw conveyor 2 through the inlet connector 323.

[0028] Heat exchange process: when the material is mixed in the cavity 21, the temperature of the screw 2 is increased due to the friction. The cooling liquid in the cavity 21 exchanges heat with the screw 2, absorbs the heat of the screw 2, and its temperature is increased.

[0029] Cooling liquid discharge: the cooling liquid after being heated enters the water outlet channel 322 from the water outlet joint 324, and is finally discharged from the water outlet pipe 5, thereby taking away the heat of the screw 2 and achieving the cooling of the screw 2.

[0030] Independence of screw rotation and cooling system: due to the setting of the rotating joint 3, when the screw 2 rotates, the water inlet pipe 4 and the water outlet pipe 5 do not rotate. The inner shaft body 32 rotates in the outer shell body 31, which ensures the normal circulation of the cooling liquid and does not affect the normal work of the screw 2, thereby ensuring the stability and reliability of the cooling system.

Claims

1. A liquid cooling system for an internal mixer screw, comprising an internal mixer (1), characterized in that The internal rotating connection of the internal mixer (1) is provided with a screw conveyor (2), the end of the screw conveyor (2) extends from the internal mixer (1), and is connected with the water inlet pipe (4) and the water outlet pipe (5) through the rotary joint (3), the screw conveyor (2) is provided with a cavity (21), the water inlet pipe (4) injects cooling liquid into the cavity (21) through the rotary joint (3) to cool the screw conveyor (2), and the cooling liquid is discharged from the cavity (21) through the rotary joint (3) and the water outlet pipe (5).

2. A liquid cooling system for an internal mixer screw according to claim 1, characterized in that The rotary joint (3) includes an outer shell (31) fixedly connected with the end of the screw conveyor (2), and an inner shaft body (32) rotatably connected in the outer shell (31).

3. A liquid cooling system for an internal mixer screw according to claim 2, characterized in that The inner shaft body (32) is provided with an inlet channel (321) and an outlet channel (322) respectively, the inlet channel (321) is connected with the water inlet pipe (4), and the outlet channel (322) is connected with the water outlet pipe (5).

4. A liquid cooling system for an internal mixer screw according to claim 3, characterized in that The outer shell (31) and the inner shaft body (32) are respectively provided with a bearing (33) and a shaft seal (34), the end of the inner shaft body (32) is provided with a tapered structure, the tapered structure extends into the cavity (21) and prevents the cooling liquid in the cavity (21) from flowing back between the outer shell (31) and the inner shaft body (32) together with the shaft seal (34).

5. A liquid cooling system for an internal mixer screw according to claim 4, characterized in that The end of the inner shaft body (32) is respectively connected with an inlet joint (323) and an outlet joint (324), the inlet channel (321) is communicated with the inlet joint (323), and the outlet channel (322) is communicated with the outlet joint (324), the outlet end of the water inlet pipe (4) and the inlet end of the water outlet pipe (5) are correspondingly sleeved outside the inlet joint (323) and the outlet joint (324).

6. A liquid cooling system for an internal mixer screw according to claim 2, characterized in that, The end of the outer shell (31) and the end of the screw conveyor (2) are connected and fixed through a flange (6).

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