Mixing and stirring device for modified composite material

Abstract

The utility model relates to the technical field of modified composite materials, in particular to a mixing and stirring device for modified composite materials, which comprises a reaction kettle and a stirring mechanism, a feeding port and a discharging port are respectively arranged at the upper end and the lower end of the reaction kettle, and the stirring mechanism comprises a stirring motor, a stirring shaft and stirring blades. A first circulating groove is formed in the stirring shaft in a penetrating mode, a liquid inlet mechanism and a liquid outlet mechanism are arranged at the upper end and the lower end of the stirring shaft respectively, an auxiliary stirring mechanism is arranged at the side end of the reaction kettle and comprises a reaction cavity and auxiliary blades, and a filter screen is arranged between the reaction cavity and the reaction kettle. According to the utility model, liquid additives are added through the liquid inlet mechanism and the liquid outlet mechanism, so that the mixing efficiency is obviously improved; the stirring mechanism provides vertical stirring force to turn mixed liquid up and down, and the auxiliary stirring mechanism provides horizontal stirring force to break the laminar flow state and ensure that materials are fully mixed.

Description

Technical Field

[0001] This utility model relates to the field of modified composite materials technology, and specifically to a mixing and stirring device for modified composite materials. Background Technology

[0002] Modification refers to the method of changing the physical form or properties of materials through physical and chemical means. Currently, commonly used composite materials can all be modified to obtain better physical and chemical properties. In order to achieve better modified composite materials, mixing and stirring devices are indispensable in the modification process.

[0003] Patent CN213854319U discloses a mixing and stirring device for modified composite materials, including a mixing tank. A stirring roller is installed inside the mixing tank, and several stirring blades are fixedly installed on the stirring roller. The stirring blades are T-shaped and are staggered on both sides of the stirring roller. A motor is fixedly connected to one end of the stirring roller and is located at the top of the mixing tank. Two feed inlets are also provided on both sides of the top of the mixing tank. An air inlet and an air outlet are provided on opposite sides of the mixing tank. An exhaust fan is installed at the air inlet, and the output end of the exhaust fan is connected to the air inlet. A discharge port is also provided at the bottom of the mixing tank, and a discharge pipe is connected to the discharge port. A discharge cover is threadedly connected to the discharge port.

[0004] The aforementioned mixing and stirring device has the following problems: The mixing tank contains a single stirring mechanism that only provides vertical stirring force, failing to effectively break the laminar flow state of the mixture, resulting in uneven material mixing and affecting product quality. Existing stirring devices typically... Utility Model Content

[0005] This invention provides a mixing and stirring device for modified composite materials to address the problems of existing technologies.

[0006] The objective of this utility model can be achieved through the following technical solution: A mixing and stirring device for modified composite materials, comprising: a reaction vessel and a stirring mechanism, wherein the reaction vessel is provided with a feeding port and a discharging port at its upper and lower ends respectively, the stirring mechanism includes a stirring motor fixedly mounted on the upper end of the reaction vessel, a stirring shaft rotatably mounted on the reaction vessel, and stirring blades mounted on the stirring shaft, the upper end of the stirring shaft being drivenly connected to the output end of the stirring motor, a flow channel being provided through the inside of the stirring shaft, and a liquid inlet mechanism and a liquid outlet mechanism being provided at its upper and lower ends respectively, an auxiliary stirring mechanism being provided on the side end of the reaction vessel, the auxiliary stirring mechanism including a reaction chamber communicating with the reaction vessel and auxiliary blades rotatably mounted in the reaction chamber, and a filter screen being provided between the reaction chamber and the reaction vessel.

[0007] In a further improvement, the liquid inlet mechanism includes an additive tank located at the upper end of the reactor and an upper rotating seat located at the upper end of the stirring shaft. The additive tank and the upper rotating seat are connected by pipes. An inlet flow channel is provided on the stirring shaft, and the inlet flow channel is respectively connected to the flow channel and the upper rotating seat.

[0008] In a further improvement, the liquid outlet mechanism includes a lower rotating seat disposed at the lower end of the stirring shaft and an air outlet rod fixedly disposed on the lower rotating seat. The air outlet rod is provided with a second flow channel and an overflow hole is provided through its surface. The overflow hole is connected to the second flow channel. The stirring shaft is provided with an outlet flow channel, which is connected to both the first flow channel and the second flow channel.

[0009] As a further improvement, the overflow orifice is provided with at least two sets.

[0010] In a further improvement, a circulation mechanism is provided on the side of the reactor, the circulation mechanism including a circulation pipe communicating with the reactor and a circulation pump provided on the circulation pipe.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] 1. In this invention, the liquid reagent to be added enters the reaction vessel through the liquid inlet mechanism and is discharged from the bottom through the flow channel inside the stirring shaft, forming bubbles that fully contact the mixture, thus significantly improving the mixing efficiency;

[0013] 2. The main stirring mechanism of this utility model provides vertical stirring force, causing the mixture to tumble up and down; the auxiliary stirring mechanism provides horizontal stirring force, breaking the laminar flow state and ensuring that the materials are fully mixed. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This utility model Figure 1 A magnified view of part A in the middle;

[0016] Figure 3 This utility model Figure 1 A magnified view of part B in the middle.

[0017] In the diagram, 1. Reactor; 11. Feed port; 12. Discharge port; 13. Filter screen; 2. Stirring mechanism; 21. Stirring motor; 22. Stirring shaft; 221. Flow channel one; 222. Inlet flow channel; 223. Outlet flow channel; 23. Stirring blades; 3. Liquid inlet mechanism; 31. Additive tank; 32. Upper rotating seat; 4. Liquid outlet mechanism; 41. Lower rotating seat; 42. Air outlet rod; 421. Flow channel two; 422. Overflow hole; 5. Auxiliary stirring mechanism; 51. Reaction chamber; 52. Auxiliary blades; 6. Circulation mechanism; 61. Circulation pipe; 62. Circulation pump. Detailed Implementation

[0018] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The following is a description of the embodiments and appendices. Figures 1-3 The technical solution of this utility model will be further described below.

[0021] Example 1

[0022] A mixing and stirring device for modified composite materials includes: a reaction vessel 1 and a stirring mechanism 2. The reaction vessel 1 is provided with a feeding port 11 and a discharging port 12 at its upper and lower ends, respectively. The stirring mechanism 2 includes a stirring motor 21 fixedly mounted on the upper end of the reaction vessel 1, a stirring shaft 22 rotatably mounted on the reaction vessel 1, and stirring blades 23 mounted on the stirring shaft 22. The upper end of the stirring shaft 22 is connected to the output end of the stirring motor 21. A flow channel 221 is provided through the inside of the stirring shaft 22, and a liquid inlet mechanism 3 and a liquid outlet mechanism 4 are provided at its upper and lower ends, respectively. An auxiliary stirring mechanism 5 is provided on the side of the reaction vessel 1. The auxiliary stirring mechanism 5 includes a reaction chamber 51 communicating with the reaction vessel 1 and auxiliary blades 52 rotatably mounted in the reaction chamber 51. A filter screen 13 is provided between the reaction chamber 51 and the reaction vessel 1.

[0023] Specifically, such as Figures 1-3 As shown, in actual use, various reactants are first added to the reactor 1 through the feed port 11. Then, the stirring motor 21 is started, driving the stirring shaft 22 to rotate, and the stirring blades 23 stir the materials accordingly. Simultaneously, the additive enters through the liquid inlet mechanism 3, flows through the flow channel 221 within the stirring shaft 22, and is finally discharged from the liquid outlet mechanism 4 at the bottom of the stirring shaft 22, improving the mixing efficiency of the additive and the mixture.

[0024] Alternatively, a gas source box can be installed on the inlet pipe of the liquid inlet mechanism 3, allowing the additive mixed gas to enter the liquid outlet mechanism 4 together. At this time, the additive rises in the form of liquid bubbles in the reaction vessel 1, making full contact with and mixing with the mixture. The formation and rising process of liquid bubbles increases the contact area and time between liquids, significantly improving the mixing efficiency.

[0025] During the stirring process, the stirring blades 23 of the main stirring mechanism 2 generate a vertical stirring force, causing the mixture to tumble up and down within the reactor 1. Meanwhile, the auxiliary blades 52 of the auxiliary stirring mechanism 5 generate a horizontal stirring force, causing horizontal disturbance in the mixture. The combined vertical and horizontal stirring forces break the laminar flow of the mixture, creating a more complex flow pattern and ensuring thorough mixing of the materials in all directions.

[0026] The rotation of the auxiliary blades 52 ensures that the material near the side wall of the reactor 1 is thoroughly stirred, preventing material stagnation and accumulation near the side wall and further improving the uniformity of the material throughout the reactor. Furthermore, the filter screen 13 between the reaction chamber 51 of the auxiliary stirring mechanism 5 and the reactor 1 allows fine particles and liquid to pass through, promoting microcirculation of the material and enhancing the mixing effect.

[0027] As a further preferred embodiment, the liquid inlet mechanism 3 includes an additive tank 31 disposed at the upper end of the reactor 1 and an upper rotating seat 32 disposed at the upper end of the stirring shaft 22. The additive tank 31 and the upper rotating seat 32 are connected by pipes. The stirring shaft 22 is provided with an inlet flow channel 222, which is connected to the first flow channel 221 and the upper rotating seat 312 respectively. The liquid flow path is: additive tank 31 → pipe → upper rotating seat 32 → inlet flow channel 222 → first flow channel 221 → liquid outlet mechanism 4, ensuring that the liquid smoothly enters the stirring shaft 22 and is discharged, thereby improving the mixing efficiency.

[0028] As a further preferred embodiment, the liquid outlet mechanism 4 includes a lower rotating seat 41 disposed at the lower end of the stirring shaft 22 and an air outlet rod 42 fixedly disposed on the lower rotating seat 41. The air outlet rod 42 is provided with a second flow channel 421 and an overflow hole 422 is provided through its surface. The overflow hole 422 is connected to the second flow channel 421. The stirring shaft 22 is provided with an outlet flow channel 223, which is connected to both the first flow channel 221 and the second flow channel 421. The liquid flow path is: first flow channel 221 → outlet flow channel 223 → second flow channel 421 → overflow hole 422. The liquid is discharged through the overflow hole 422, forming liquid bubbles and improving the mixing efficiency.

[0029] As a further preferred embodiment, the overflow hole 422 is provided with at least two sets.

[0030] Specifically, by setting multiple overflow holes 422, multiple bubble paths are formed in the reaction vessel 1, which increases the contact area and time between the liquid and the mixture, thereby more effectively promoting the full mixing of the liquid and the mixture.

[0031] As a further preferred embodiment, a circulation mechanism 6 is provided on the side of the reactor 1. The circulation mechanism 6 includes a circulation pipe 61 that communicates with the reactor 1 and a circulation pump 62 provided on the circulation pipe 61.

[0032] Specifically, when the composite materials are all liquids or solid particles that are easily soluble in solvents, during the stirring process, the circulating pump 62 draws the mixture from the bottom of the reactor 1 and transports it back to the top of the reactor 1 through the circulating pipe 61, thereby realizing the internal circulation of the mixture, which helps to further homogenize the mixture, avoid some materials from accumulating at the bottom of the reactor, and improve product quality.

[0033] Alternatively, a filter screen is provided at the inlet of the lower circulation pipe 61 to prevent solid particles from entering the circulation pipe 61 and causing blockage of the circulation mechanism 6.

[0034] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A mixing and stirring device for modified composite materials, characterized in that, include: The reactor includes a reaction vessel and a stirring mechanism. The reaction vessel has a feed port and a discharge port at its upper and lower ends, respectively. The stirring mechanism includes a stirring motor fixedly mounted on the upper end of the reaction vessel, a stirring shaft rotatably mounted on the reaction vessel, and stirring blades mounted on the stirring shaft. The upper end of the stirring shaft is connected to the output end of the stirring motor. A flow channel is provided through the stirring shaft, and a liquid inlet mechanism and a liquid outlet mechanism are provided at its upper and lower ends, respectively. An auxiliary stirring mechanism is provided on the side of the reaction vessel. The auxiliary stirring mechanism includes a reaction chamber communicating with the reaction vessel and auxiliary blades rotatably mounted in the reaction chamber. A filter screen is provided between the reaction chamber and the reaction vessel.

2. The mixing and stirring device for modified composite materials according to claim 1, characterized in that, The liquid inlet mechanism includes an additive tank located at the upper end of the reactor and an upper rotating seat located at the upper end of the stirring shaft. The additive tank and the upper rotating seat are connected by pipes. An inlet flow channel is provided on the stirring shaft, and the inlet flow channel is respectively connected to the flow channel and the upper rotating seat.

3. A mixing and stirring device for modified composite materials according to claim 1 or 2, characterized in that, The liquid outlet mechanism includes a lower rotating seat disposed at the lower end of the stirring shaft and an air outlet rod fixedly disposed on the lower rotating seat. The air outlet rod is provided with a second flow groove and an overflow hole is provided through the surface. The overflow hole is connected to the second flow groove. The stirring shaft is provided with an outlet flow groove, which is connected to both the first flow groove and the second flow groove.

4. The mixing and stirring device for modified composite materials according to claim 3, characterized in that, The overflow hole is provided in at least two sets.

5. The mixing and stirring device for modified composite materials according to claim 1, characterized in that, The reactor is provided with a circulation mechanism on its side, which includes a circulation pipe that is connected to the reactor and a circulation pump installed on the circulation pipe.

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