Reaction kettle for silicone rubber production

Abstract

The utility model relates to the technical field of silicone rubber processing and production equipment, in particular to a reaction kettle for silicone rubber production, which comprises a tank body, a stirring paddle coaxially arranged with the tank body is arranged in the tank body, a plurality of spray heads are arranged at the top end of the tank body, a flow equalizing chamber is arranged above the tank body, and the flow equalizing chamber is communicated with the tank body. A magnetic stirring driving device is arranged above the stirring paddle, and the magnetic stirring driving device is connected with the stirring paddle in a magnetic coupling connection mode so as to drive the stirring paddle to circumferentially rotate around the axis of the stirring paddle to perform stirring motion. Through the arrangement of the components, the materials in the reaction kettle are mixed more uniformly, the stirring time is shortened, and meanwhile, the interior of the reaction kettle is more convenient to clean.

Description

Technical Field

[0001] This utility model relates to the technical field of silicone rubber processing and production equipment, and in particular to a reaction vessel for silicone rubber production. Background Technology

[0002] In the production of liquid silicone rubber, the silicone rubber raw materials need to be mixed multiple times in a reactor to ensure uniform mixing. Insufficient mixing prevents the raw materials from coming into contact with each other in time, leading to a longer production process and potentially unstable quality. If colored silicone rubber products are to be produced, pigments and other additives are added. In this process, thorough mixing helps the pigments disperse evenly in the silicone rubber raw materials, ensuring color consistency in the finished product.

[0003] During the mixing process, uneven mixing of materials can occur in certain areas, making it difficult to mix the material at the bottom of the reactor with the material at the top. This results in uneven mixing and poor stirring effect. After the reactor finishes its work, residue remains on the inner wall of the reactor and also adheres to the surface of the stirring blades. If the next batch of products is processed, it will affect the quality of the products. The reactor needs to be thoroughly cleaned, but existing reactors are not easy to clean. Utility Model Content

[0004] The purpose of this invention is to provide a reaction vessel for the production of silicone rubber, which aims to solve the technical problems of poor material stirring effect and inconvenience in cleaning in the reaction vessel in the prior art.

[0005] To achieve the above objectives, this utility model provides a reaction vessel for silicone rubber production, characterized in that: it includes a tank body, inside which is provided a stirring paddle coaxially arranged with the tank body. The stirring paddle consists of a drive shaft, spiral blades, blades, and scrapers. The blades are located around the spiral blades, and the spiral blades and blades are twisted in opposite directions, thereby causing the material interacting with the spiral blades and blades to move in opposite directions. The blades have through holes, and scrapers are located around the blades. A nozzle is located at the top of the tank body. A flow equalization chamber is located above the tank body, and the flow equalization chamber has an inlet, an outlet, a baffle, and multiple feed inlets. A magnetic stirring drive device is located above the stirring paddle, and the magnetic stirring drive device is used to drive the stirring paddle to perform stirring motion.

[0006] Preferably, the tank is cylindrical, with a discharge port at the bottom and a control valve in the discharge port.

[0007] Preferably, the spiral blade is fixedly mounted on the drive shaft, and the spiral blade extends upward along the drive shaft and is spirally arranged around the drive shaft. Preferably, when the drive shaft drives the spiral blade to rotate, the spiral blade drives part of the material in the tank to move upward.

[0008] Preferably, there are multiple blades, each blade is a helical blade, and the direction of rotation of the blade is opposite to the direction of rotation of the helical blade, so that when the helical blade drives the blade to rotate, the direction of material movement driven by the helical blade is opposite to that of the blade.

[0009] Preferably, the blades are provided with multiple through holes, and the through holes on every two blades are arranged opposite to each other.

[0010] Preferably, the scraper is made of a corrosion-resistant and flexible material, such as rubber, and is fixedly disposed on the periphery of the paddle blade. The scraper is in contact with the inner wall of the tank and is interference-fitted.

[0011] Preferably, there are multiple nozzles, which are evenly fixed at the top of the tank.

[0012] Preferably, the flow equalization chamber is fixedly disposed above the tank body, and the flow equalization chamber is an annular box structure with an internal cavity, and the flow equalization chamber is in communication with the nozzle.

[0013] Preferably, there are multiple feed inlets located above the flow equalization chamber, and the water inlet is located above the flow equalization chamber. More preferably, the feed inlet, the water inlet and the nozzle are coaxially arranged, and the water outlet is located at the end of the flow equalization chamber away from the water inlet and below the partition.

[0014] Preferably, the partition is fixedly disposed coaxially with the flow equalization chamber at the center of the flow equalization chamber, and the partition is provided with a plurality of reserved holes, which are arranged intersecting with the feed inlet and the water inlet.

[0015] The above-mentioned technical solutions in a reaction vessel for silicone rubber production provided by this utility model embodiment have at least one of the following technical effects:

[0016] This invention relates to a reaction vessel for silicone rubber production. The spiral blades in the agitator cause the material at the bottom of the vessel to move upwards, thus fully mixing with the material above. The blade design achieves lateral mixing while the combination of the blades and spiral blades shortens the vertical movement cycle of the material inside the vessel, significantly improving both the mixing effect and efficiency. Simultaneously, the flow equalization chamber and nozzles above the vessel ensure that the added material contacts the material inside more evenly upon entering, reducing mixing time and improving efficiency. The nozzles also allow for direct cleaning of the vessel interior, enhancing convenience. A scraper at the rear of the blades thoroughly mixes the material adhering to the inner wall of the vessel and, in conjunction with the blades, ensures cleaner and more complete discharge, reducing waste. Furthermore, the combination of the scraper and nozzles further enhances the cleaning efficiency and effectiveness within the vessel. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A front view of a reaction vessel for silicone rubber production provided in an embodiment of this utility model.

[0019] Figure 2 for Figure 1 Sectional view at point AA.

[0020] Figure 3 This is a partial view of a reaction vessel for the production of silicone rubber, provided as an embodiment of the present invention.

[0021] Figure 4 This is a partial view of a reaction vessel for the production of silicone rubber, provided as an embodiment of the present invention.

[0022] Figure 5 This is a partial view of a reaction vessel for the production of silicone rubber, provided as an embodiment of the present invention.

[0023] The following are the labeling elements in the figure:

[0024] 10—Tank body 11—Discharge port 12—Control valve 20—Agitator 21—Drive shaft

[0025] 22—Helical blade 23—Paddle blade 231—Through hole 24—Scraper 30—Nozzle

[0026] 40—Flow equalization chamber; 41—Feed inlet; 42—Water inlet; 43—Baffle plate; 431—Reserved hole

[0027] 44—Water outlet; 50—Magnetic stirring drive device. Detailed Implementation

[0028] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0029] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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.

[0030] Furthermore, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0032] In one embodiment of this utility model, such as Figure 1-5 As shown, a reaction vessel for the production of silicone rubber is provided, including a tank body 10, a stirring paddle 20, a nozzle 30, a flow equalization chamber 40, and a magnetic stirring drive device 50.

[0033] The tank 10 is cylindrical, and a stirring paddle 20 is arranged coaxially with the tank 10 inside. Multiple nozzles 30 are provided at the top of the tank 10. A flow equalization chamber 40 is provided above the tank 10. A magnetic stirring drive device 50 is provided above the stirring paddle 20. The magnetic stirring drive device 50 is connected to the stirring paddle 20 through a magnetic coupling connection to drive the stirring paddle 20 to rotate circumferentially around its own axis for stirring motion.

[0034] The bottom of the tank 10 is provided with a discharge port 11, and a control valve 12 is provided in the discharge port 11.

[0035] The stirring paddle 20 is coaxially disposed in the tank 10 via bearings and other connecting components, and the stirring paddle 20 can rotate within the tank 10 under the driving action of the magnetic stirring drive device 50. The stirring paddle 20 is composed of a drive shaft 21, a spiral blade 22, a blade 23, and a scraper 24.

[0036] The drive shaft 21 is located in the tank 10 and is coaxially arranged with the tank 10 through connecting components such as bearings. The drive shaft 21 drives the spiral blades 22 and the paddle blades 23 to rotate under the driving action of the magnetic stirring drive device 50.

[0037] The spiral blade 22 is fixedly mounted on the drive shaft 21. The spiral blade 22 extends upward along the drive shaft 21 and is spirally arranged around the drive shaft 22. When the drive shaft 21 drives the spiral blade 22 to rotate, the spiral blade 22 drives part of the material in the tank 10 to move upward.

[0038] Preferably, the top of the spiral blade 22 is spaced from the top of the tank 10, and the diameter of the spiral blade 22 is half the diameter of the tank 10.

[0039] There are multiple blades 23, each blade is a spiral blade, and the spiral rotation direction of the blade 23 is opposite to that of the spiral blade 22. This is so that when the spiral blade 22 drives the blade 23 to rotate, the material movement direction driven by the spiral blade 22 and the blade 23 is opposite. The blade 23 is fixedly disposed on the periphery of the spiral blade 22. The blade 23 plays a role in mixing and stirring the material in the tank 10 in the left and right directions, and at the same time, it plays a role in moving the material at the top of the tank 10 downwards. This shortens the up-and-down movement cycle of the material in the reactor, and greatly improves the stirring effect and stirring efficiency. In addition, the blade 23 plays a role in scraping off the material attached to the inner wall of the tank 10 to improve the stirring effect and make the material discharge cleaner.

[0040] The blades 23 are provided with through holes 231, and the through holes 231 on each pair of blades 23 are arranged opposite to each other. The arrangement of the through holes 231 allows the material between each pair of blades 23 to flow fully in the tank 10, thereby making the mixing more thorough. At the same time, the cross arrangement of the through holes 231 on each pair of blades 23 allows the material after passing through one through hole 231 to come into contact with the next blade 23. After being subjected to the opposite force of the blade 23, the material mixes with other materials, thereby further improving the mixing efficiency.

[0041] The scraper 24 is made of a corrosion-resistant and flexible material, such as rubber. The scraper 24 is fixedly disposed around the paddle 23. The scraper 24 is in contact with the inner wall of the tank 10 and is press-fitted, so that the scraper 24 can effectively scrape off the material adhering to the inner wall of the tank 10.

[0042] Multiple nozzles 30 are evenly fixed at the top of the tank 10. The nozzles 30 serve to evenly spray the material entering through the feed inlet 41 into the interior of the tank 10, thereby reducing the difficulty of stirring the material inside the tank 10 and improving the stirring efficiency. At the same time, when it is necessary to clean the interior of the tank 10 and the stirring paddle 20, the nozzles 30 spray pressurized water under the action of the water inlet 42 to rinse the interior of the tank 10 and the stirring paddle 20. Preferably, the nozzles 30 are kept in a closed state when not in operation, and the flow rate and spray range diameter of the nozzles 30 can be precisely controlled.

[0043] The flow equalization chamber 40 is fixedly installed above the tank body 10. The flow equalization chamber 40 is an annular box structure with an internal cavity. The bottom of the flow equalization chamber 40 is connected to the nozzle 30. The flow equalization chamber 40 serves to evenly distribute the added material entering through the feed inlet 41 to each nozzle 30.

[0044] The flow equalization chamber 40 is provided with a feed inlet 41, a water inlet 42, a partition 43, and a water outlet 44.

[0045] Multiple feed inlets 41 are located above the flow equalization chamber 40. The feed inlets 41 are used to transport various materials to be added into the flow equalization chamber 40. The water inlet 42 is located above the flow equalization chamber 40. The water inlet 42 is used to input cleaning water into the flow equalization chamber 40. Preferably, the feed inlets 41, the water inlet 42 and the nozzle 30 are coaxially arranged.

[0046] The partition plate 43 is fixedly mounted coaxially with the flow equalization chamber 40 at the center of the flow equalization chamber 40. The partition plate 43 is provided with a plurality of reserved holes 431. The reserved holes 431 are arranged intersectingly with the feed inlet 41 and the water inlet 42, so that the material entering the flow equalization chamber 40 through the water inlet 42 or a certain feed inlet 41 is evenly contacted with each nozzle 30 under the flow equalization effect of the partition plate 43, thereby making the amount of material sprayed out by each nozzle 30 more uniform.

[0047] The outlet 42 is located at the end of the flow equalization chamber 40 away from the inlet 42 and below the partition 43. Before different materials need to enter the flow equalization chamber 40, water can be introduced through the inlet 42, the nozzle 30 is kept closed, and the outlet 42 is opened to clean the flow equalization chamber 40.

[0048] The magnetic stirring drive device 50 is located above the tank 10, and the magnetic stirring drive device 50 drives the stirring paddle 20 to rotate.

[0049] The working principle of this utility model is as follows: A reaction vessel for silicone rubber production, in use, allows material to enter the tank 10 through the feed inlet 41. When other materials need to be added, the magnetic stirring drive device 50 drives the stirring paddle 20 to rotate, and then the material enters the equalization chamber 40 through the corresponding feed inlet 41. After being evenly distributed by the baffle 43, the material comes into uniform contact with each nozzle 30. The nozzles 30 evenly spray the material onto the surface of the material in the tank 10. At this time, some of the material in the tank 10 and some of the added material move upward under the action of the spiral blade 22, and some material moves left and right while moving downward under the action of the paddle 23. The uniform spraying of material by the nozzles 30 reduces the difficulty and time of stirring. The spiral blade 22, the paddle 23 and the multiple reserved holes 431 allow the material to be mixed and stirred in multiple directions (up, down, left, right) in the tank 10, further improving the stirring effect and efficiency. At the same time, the scraper 24 can scrape off the material adhering to the inner wall of the tank 10. This ensures full participation in stirring and mixing, improving the stirring effect. When new materials need to be added, water can be introduced into the flow equalization chamber 40 through the inlet 42, keeping the nozzle 30 closed. The outlet 44 is opened to allow clean water to rinse the flow equalization chamber 40 before being discharged through the outlet 44. When materials need to be discharged, the control valve 12 on the discharge port 11 is opened to rotate the stirring paddle 20. The rotation of the paddle blades 23 allows the materials to be discharged from the tank 10 more quickly. The scraper 24 can scrape the materials adhering to the side wall of the tank 10. In addition to preventing material waste and reducing cleaning difficulty, when the inner wall of the tank 10 and the agitator 20 need to be cleaned after use, water is introduced into the flow equalization chamber 40 through the water inlet 42, keeping the nozzle 30 open. The nozzle 30 sprays out pressurized water to clean the inner wall of the tank 10 and the agitator 20. At the same time, the agitator 20 is rotated, which cleans the agitator more thoroughly. The scraper 24 can assist the water flow in cleaning the inner wall of the tank 10, reducing the cleaning difficulty of the tank 10.

[0050] The rest of this embodiment is the same as that in Embodiment 1. Features not explained in this embodiment are explained using the methods in Embodiment 1, and will not be repeated here.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A reaction vessel for the production of silicone rubber, characterized in that: The device includes a tank body, inside which is a stirring paddle coaxially arranged. The stirring paddle consists of a drive shaft, spiral blades, blades, and scrapers. The blades are located around the spiral blades, and the spiral blades and blades twist in opposite directions, causing the material interacting with the spiral blades and blades to move in opposite directions. The blades have through holes, and scrapers are located around the blades. A nozzle is located at the top of the tank body. A flow equalization chamber is located above the tank body, and the flow equalization chamber has an inlet, an outlet, a baffle, and multiple feed inlets. A magnetic stirring drive device is located above the stirring paddle, and the magnetic stirring drive device is used to drive the stirring paddle to perform stirring motion.

2. The reaction vessel for silicone rubber production according to claim 1, characterized in that: The tank is cylindrical, with a discharge port at the bottom and a control valve inside the discharge port.

3. A reaction vessel for silicone rubber production according to claim 1, characterized in that: The spiral blades are fixedly mounted on the drive shaft. The spiral blades extend upward along the drive shaft and are spirally arranged around the drive shaft. When the drive shaft drives the spiral blades to rotate, the spiral blades drive part of the material in the tank to move upward.

4. A reaction vessel for silicone rubber production according to claim 1, characterized in that: The blades are multiple, and each blade is a spiral blade. The spiral rotation direction of the blades is opposite to the rotation direction of the spiral blades, so that when the spiral blades drive the blades to rotate, the spiral blades and the material driven by the blades move in opposite directions.

5. A reaction vessel for silicone rubber production according to claim 1, characterized in that: The blades are provided with multiple through holes, and the through holes on every two blades are arranged opposite to each other.

6. A reaction vessel for silicone rubber production according to claim 1, characterized in that: The scraper is made of a corrosion-resistant and flexible material, such as rubber. The scraper is fixedly disposed on the periphery of the blade and is in contact with the inner wall of the tank and is interference-fitted.

7. A reaction vessel for silicone rubber production according to claim 1, characterized in that: The nozzles are multiple and are evenly fixed at the top of the tank.

8. A reaction vessel for silicone rubber production according to claim 1, characterized in that: The flow equalization chamber is fixedly installed above the tank body. The flow equalization chamber is an annular box structure with an internal cavity, and the flow equalization chamber is in communication with the nozzle.

9. A reaction vessel for silicone rubber production according to claim 1, characterized in that: The feed inlet has multiple locations above the flow equalization chamber, the water inlet is located above the flow equalization chamber, the feed inlet and the water inlet are coaxially arranged with the nozzle, and the water outlet is located at the end of the flow equalization chamber away from the water inlet and below the partition.

10. A reaction vessel for silicone rubber production according to claim 1, characterized in that: The partition plate is fixedly located at the center of the flow equalization chamber, coaxial with the flow equalization chamber. The partition plate is provided with a plurality of reserved holes, which are arranged intersecting with the feed inlet and the water inlet.

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