Liquid preparation tank for producing composite stearate

Abstract

The utility model relates to a liquid preparation tank for complex stearate production, which comprises a tank body, a feeding port arranged on the top of the tank body, a discharging port arranged on the bottom of the tank body, a bottom leg fixedly installed on the bottom of the tank body, a main shaft rotatably installed in the tank body and driven to rotate by a motor, a stirring fan installed on the main shaft, a rotating frame rotatably installed in the tank body, a transmission mechanism for driving connection between the rotating frame and the main shaft, and a plurality of scrapers installed on the rotating frame for scraping off the attachments on the inner wall of the tank body. The arrangement of the rotating frame and the scraper enables the liquid preparation tank to scrape off the particles or gum attached to the inner wall of the tank body at any time during operation, thereby improving the heat transfer efficiency between the heating device and the interior of the tank body and further improving the reaction efficiency. The material on the inner wall of the tank body can be scraped off to enable sufficient reaction and further improve the reaction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of liquid preparation tank technology, specifically to a liquid preparation tank for the production of composite stearates. Background Technology

[0002] Complex stearates are composite metal soaps formed by the chemical reaction of stearic acid with two or more metal ions. They possess synergistic effects and unique properties not found in single stearates. Complex stearates have a wide range of applications; for example, they can be used as heat stabilizers and release agents in the plastics industry; as vulcanization accelerators and activators in the rubber industry; and as thickeners in cosmetics. The production of complex stearates first requires the preparation of raw materials. Then, the raw materials and additives are added to a mixing tank and stirred to carry out a metathesis reaction. After the reaction is complete, subsequent processing steps include filtration, washing, dehydration, and drying.

[0003] In existing technologies, the mixing tanks used for producing composite stearates have a relatively simple structure, mainly consisting of a heatable tank, a motor, and an agitator. During use, molten stearic acid, metal hydroxide particles, and additives are added to the tank, and the motor is started to agitate the mixture, promoting the reaction between stearic acid and metal ions. However, during the reaction of stearic acid and granular metal hydroxide, suspended particles and a gel-like state exist within the tank. Both the gel-like state and the suspended particles easily adhere to the inner wall of the tank. The existing mixing tanks have a relatively simple agitator structure, making it difficult to clean the deposits from the inner wall in a timely manner. This affects the efficiency of heat transfer between the heating device on the outside of the tank and the inside, leading to a reduced reaction rate and incomplete reaction between stearic acid and metal ions. Utility Model Content

[0004] The purpose of this invention is to provide a compound stearate production mixing tank that can promptly remove adhering substances to the inner wall of the tank during the reaction, addressing the above-mentioned problems.

[0005] To achieve the above objectives, this utility model discloses a mixing tank for the production of composite stearates, comprising a tank body, an inlet at the top of the tank body and an outlet at the bottom of the tank body, and bottom legs fixedly installed at the bottom of the tank body. A main shaft that can be driven to rotate by a motor is rotatably installed inside the tank body, and an agitator is installed on the main shaft. A rotating frame is rotatably installed inside the tank body, and the rotating frame is connected to the main shaft through a transmission mechanism. Several scrapers for scraping off the adhering substances on the inner wall of the tank body are installed on the rotating frame.

[0006] Preferably, the transmission mechanism includes an active internal gear sleeve fixedly connected to the main shaft, a rotating sleeve rotatably sleeved on the main shaft, a driven internal gear sleeve fixedly connected to the top of the rotating sleeve, a first gear and a second gear rotatably mounted between the active internal gear sleeve and the driven internal gear sleeve, the active internal gear sleeve meshing with the upper half of the second gear, the lower half of the second gear meshing with the upper half of the first gear, and the lower half of the first gear meshing with the driven internal gear sleeve; the rotating sleeve is fixedly connected to the rotating frame.

[0007] Preferably, a protective cover is fixedly connected to the top of the inner side of the tank, and the bottom of the protective cover is rotatably engaged with the rotating sleeve. The driving inner gear sleeve, the driven inner gear sleeve, the first gear, and the second gear are all located inside the protective cover. A fixing plate is also fixedly installed inside the protective cover. The fixing plate is located between the driving inner gear sleeve and the driven inner gear sleeve. A fixing sleeve is fixedly installed inside the fixing plate. The fixing sleeve is rotatably sleeved on the outside of the main shaft. A first mounting plate is fixedly connected to the fixing sleeve. A first rotating shaft is rotatably installed on the first mounting plate. The first rotating shaft is coaxially fixedly connected to the first gear. A second mounting plate is also fixedly installed on the fixing sleeve. A second rotating shaft is rotatably installed on the second mounting plate. The second rotating shaft is coaxially fixedly connected to the second gear.

[0008] Preferably, the rotating frame includes two crossbeams located on both sides of the rotating sleeve and fixedly connected to the rotating sleeve. A vertical beam extending downward is fixedly connected to the end of the crossbeam away from the rotating sleeve, and an inclined beam extending inward and tilting downward is fixedly connected to the end of the vertical beam away from the crossbeam. A common connecting plate is connected to the ends of the two inclined beams that are close to each other, and the connecting plate is rotatably connected to the main shaft. Several scrapers are detachably installed on the outer sides of the crossbeams and inclined beams.

[0009] Preferably, a number of mounting seats are fixedly installed on the outer side of the vertical beam and the inclined beam. The mounting seats are provided with rectangular mounting grooves, and scrapers are inserted into the mounting grooves. The mounting grooves and scrapers are detachably fixedly connected by bolts.

[0010] Preferably, a number of inclined auxiliary stirring blades are fixedly connected to the inner side of the vertical beam.

[0011] Preferably, the stirring fan is provided in a plurality of parts, and the stirring fan includes a mounting sleeve that is fixedly connected to the main shaft on the same axis. A plurality of main stirring blades arranged in a circular array and at an angle are fixedly mounted on the mounting sleeve.

[0012] Preferably, the stirring fan and the auxiliary stirring blades are arranged at intervals in the vertical direction, and the main stirring blades and the auxiliary stirring blades are inclined in opposite directions.

[0013] Preferably, the bottom of the tank is fixedly connected to a plurality of circumferentially arrayed support legs, and the top of the support legs is fixedly connected to a support base, which is rotatably engaged with the connecting plate.

[0014] Preferably, the top of the support base is fixedly connected to an annular limiting block, and the bottom of the connecting plate is provided with an annular limiting groove that cooperates with the annular limiting block, with the limiting block and the limiting groove slidingly engaged.

[0015] In summary, the beneficial effects of this utility model are as follows: 1. The rotating frame and scraper design allow for the continuous scraping of particulate or colloidal substances adhering to the inner wall of the mixing tank during operation. This improves heat transfer efficiency between the heating device and the tank interior, thereby enhancing reaction efficiency. Scraping the substances off the inner wall allows for a more thorough reaction, further improving efficiency. Furthermore, the rotating frame rotates synchronously with the main shaft via a transmission mechanism, eliminating the need for a separate drive mechanism, resulting in better coordination and greater energy savings.

[0016] 2. The use of multiple stirring fans and auxiliary stirring blades increases the stirring efficiency. Under the action of the transmission mechanism, the stirring fans and auxiliary stirring blades rotate in opposite directions, and the main stirring blades and auxiliary stirring blades also rotate in opposite directions. This ensures thorough mixing of the substances in the tank, thereby increasing the reaction rate and ultimately improving the production efficiency of composite stearates. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the tank body and the heating jacket; Figure 3 This is a schematic diagram of the internal structure of the tank; Figure 4 This is a schematic diagram showing the connection between the stirring fan and the rotating frame; Figure 5 This is a cross-sectional view of the transmission mechanism and the protective cover; Figure 6 This is a schematic diagram of the transmission mechanism; Figure 7 This is a schematic diagram of the meshing structure of the transmission mechanism; Figure 8 This is a schematic diagram of the scraper's structure; Figure 9 This is a schematic diagram of the support base.

[0018] In the diagram: 1-Tank body; 2-Cover; 3-Pressure relief valve; 4-Motor; 5-Inlet; 6-Heating jacket; 7-Air outlet; 8-Outlet; 9-Bottom leg; 10-Top tank; 11-Side tank; 12-Heating chamber; 13-Air inlet; 14-Bottom tank; 15-Main shaft; 16-Agitator fan; 17-Rotating frame; 18-Mounting base; 19-Scraper; 20-Secondary agitator blade; 21-Support base; 22-Support leg; 23-Protective material 24-Cover; 25-Rotating sleeve; 26-Horizontal beam; 27-Vertical beam; 28-Inclined beam; 29-Limiting groove; 30-Mounting sleeve; 31-Main stirring blade; 32-Connecting plate; 33-Active internal gear sleeve; 34-Driven internal gear sleeve; 35-Second gear; 36-Fixed sleeve; 37-Fixed plate; 38-First mounting plate; 39-First rotating shaft; 40-Second mounting plate; 41-Second rotating shaft; 42-Limiting block. Detailed Implementation

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0020] In the description of this application, it should be understood that the terms "center", "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 accompanying drawings. They 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] The following is a description of preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0022] like Figure 1 , Figure 3 , Figure 4 As shown, this utility model provides a mixing tank for the production of composite stearates, including a heatable tank body 1. The tank body 1 has an inlet 5 at the top and an outlet 8 at the bottom. The bottom of the tank body 1 is fixedly installed with a bottom leg 9. A main shaft 15 that can be driven to rotate by a motor 4 is rotatably installed inside the tank body 1. An agitator 16 is installed on the main shaft 15. A rotating frame 17 is rotatably installed inside the tank body 1. The rotating frame 17 is connected to the main shaft 15 through a transmission mechanism. Several scrapers 19 for scraping off the adhering substances on the inner wall of the tank body 1 are installed on the rotating frame 17.

[0023] The tank body 1 mainly consists of a top tank 10, side tanks 11, and a bottom tank 14. The motor 4 is fixedly installed in the middle of the outer side of the top tank 10. The top end of the main shaft 15 extends upwards through the top pipe and is connected to the output shaft of the motor 4 via a coupling. An openable cover 2 and a pressure relief valve 3 are also installed on the top tank 10. The cover 2 allows observation of the internal condition of the tank body 1 and cleaning of the interior. The pressure relief valve 3 protects the safety of the tank body 1. Furthermore, the aforementioned inlets 5 and outlets 8 are equipped with valves to control their opening and closing. This is standard technology in liquid preparation tanks and will not be elaborated upon further.

[0024] like Figure 2 As shown, the tank 1 needs to be heated mainly because stearic acid needs to be kept in a molten state, which requires a certain temperature support. There are many ways to heat the tank 1, such as electric heating and steam heating. In this embodiment, the main heating method for the tank 1 is steam heating. Specifically, a heating sleeve 6 is fixedly installed on the outside of the side tank 11, forming a heating chamber 12 between the heating sleeve 6 and the side tank 11. The heating sleeve 6 is provided with an air inlet 13 and an air outlet 7 that communicate with the heating chamber 12. The air inlet 13 is located at the bottom of the heating sleeve 6, and the air outlet 7 is located at the top of the heating sleeve 6. The air inlet 13 and the air outlet 7 are connected to the steam pipe and are used in conjunction with a temperature sensor to adjust the temperature of the tank 1. Both are equipped with corresponding valves. This is also conventional prior art and will not be described in detail here.

[0025] like Figures 4 to 7 As shown, the transmission mechanism includes an active internal gear sleeve 32 coaxially fixedly connected to the main shaft 15. A rotating sleeve 24 is rotatably sleeved on the main shaft 15. A driven internal gear sleeve 33 is coaxially fixedly connected to the top of the rotating sleeve 24. A first gear 34 and a second gear 35 are rotatably mounted between the active internal gear sleeve 32 and the driven internal gear sleeve 33. The active internal gear sleeve 32 meshes with the upper half of the second gear 35, the lower half of the second gear 35 meshes with the upper half of the first gear 34, and the lower half of the first gear 34 meshes with the driven internal gear sleeve 33. The rotating sleeve 24 is fixedly connected to the rotating frame 17.

[0026] The active internal gear sleeve 32 and the driven internal gear sleeve 33 are both equivalent to an internal gear ring with a cover plate. The cover plate of the active internal gear sleeve 32 is mainly used to fix it to the main shaft 15, and the driven internal gear sleeve 33 is mainly used to fix it to the rotating sleeve 24. Through the transmission of the first gear 34 and the second gear 35, the active internal gear sleeve 32 and the driven internal gear sleeve 33 rotate in opposite directions. This configuration is simple, the processing of ordinary gears and internal gear rings is more convenient, the cost is lower, and it has good economic benefits.

[0027] To prevent reactants from splashing onto the transmission mechanism during stirring and thus affecting its service life, a protective cover 23 is fixedly connected to the inner wall of the top tank 10. The bottom of the protective cover 23 is rotatably engaged with the rotating sleeve 24. The driving internal gear sleeve 32, the driven internal gear sleeve 33, the first gear 34, and the second gear 35 are all located inside the protective cover 23. A fixing plate 37 is fixedly installed inside the protective cover 23, located between the driving internal gear sleeve 32 and the driven internal gear sleeve 33. A fixing sleeve 36 is fixedly installed inside the fixing plate 37, and the fixing sleeve 36 is rotatably sleeved on the outside of the main shaft 15. A first mounting plate 38 is fixedly connected to the fixing sleeve 36, and a first rotating shaft 39 is rotatably mounted on the first mounting plate 38. The first rotating shaft 39 is coaxially fixedly connected to the first gear 34. A second mounting plate 40 is also fixedly installed on the fixing sleeve 36, and a second rotating shaft 41 is rotatably mounted on the second mounting plate 40. The second rotating shaft 41 is coaxially fixedly connected to the second gear 35.

[0028] like Figure 4 , Figure 8 As shown, the rotating frame 17 includes two crossbeams 25 located on both sides of the rotating sleeve 24 and fixedly connected to the rotating sleeve 24. A downwardly extending vertical beam 26 is fixedly connected to one end of each crossbeam 25 away from the rotating sleeve 24. An inwardly extending and downwardly inclined oblique beam 27 is fixedly connected to one end of each vertical beam 26 away from the crossbeams 25. A common connecting plate 31 is connected to the ends of the two oblique beams 27 that are close to each other. The connecting plate 31 is rotatably connected to the main shaft 15. Several scrapers 19 are detachably mounted on the outer sides of the crossbeams 25 and oblique beams 27. Specifically, several mounting seats 18 are fixedly mounted on the outer sides of the vertical beams 26 and oblique beams 27. Each mounting seat 18 has a rectangular mounting groove, into which a scraper 19 is inserted. The mounting groove and the scraper 19 are detachably fixedly connected by bolts.

[0029] The part of the scraper 19 that is inserted into the mounting base 18 is trapezoidal. Specifically, the end of the scraper 19 that is closer to the mounting base 18 is narrower. This design is to allow the scraper 19 to be better inserted into the mounting base when it is replaced, thereby improving the replacement efficiency of the scraper 19.

[0030] To improve the stirring efficiency of the mixing tank, several inclined auxiliary stirring blades 20 are fixedly connected to the inner side of the vertical beam 26, and several stirring fans 16 are also provided. The stirring fan 16 includes a mounting sleeve 29 that is fixedly connected to the main shaft 15 on the same axis, and several circumferentially arrayed and inclined main stirring blades 30 are fixedly mounted on the mounting sleeve 29.

[0031] The stirring fan 16 and the auxiliary stirring blade 20 are arranged vertically at intervals, and the main stirring blade 30 and the auxiliary stirring blade 20 are inclined in opposite directions. This makes the flow inside the tank 1 more disordered, thereby improving the mixing efficiency of the reactants in the tank 1, and thus increasing the reaction rate of stearic acid and metal ions.

[0032] like Figure 1 , Figure 3 , Figure 9 As shown, a plurality of circumferentially arrayed support legs 22 are fixedly connected to the bottom of the tank body 1. Support seats 21 are fixedly connected to the top of the support legs 22, and the support seats 21 are rotatably engaged with the connecting plate 31. An annular limiting block 42 is fixedly connected to the top of the support seat 21, and an annular limiting groove 28 is provided at the bottom of the connecting plate 31 to mate with the annular limiting block 42. The limiting block 42 and the limiting groove 28 are slidably engaged. The support seats 21 provide support for the main shaft 15 and the rotating frame 17, thereby making the structure more stable.

[0033] The operating principle of this device is as follows: Before use, the mixing tank needs to be preheated to a predetermined temperature. Molten stearic acid, metal hydroxides, additives, etc., are then added to the tank 1 through their respective inlets 5. The motor 4 is then started, driving the stirring fan 16 to rotate. Simultaneously, the rotating frame 17 also rotates, causing the scraper 19 to remove substances from the inner wall of the tank 1, thereby reducing the impact on heat transfer and ensuring a more complete reaction. During the rotation of the rotating frame 17, the auxiliary stirring blades 20 also stir the mixture in the tank 1, resulting in a more thorough stirring effect. After the reaction is complete, the mixture is discharged from the outlet 8 and proceeds to the next process.

[0034] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A mixing tank for the production of composite stearates, comprising a heatable tank body (1), the tank body (1) having an inlet (5) at the top and an outlet (8) at the bottom, and bottom legs (9) fixedly installed at the bottom of the tank body (1), characterized in that, The tank (1) is rotatably mounted with a main shaft (15) that can be driven to rotate by a motor (4). A stirring fan (16) is mounted on the main shaft (15). A rotating frame (17) is rotatably mounted inside the tank (1). The rotating frame (17) is connected to the main shaft (15) through a transmission mechanism. Several scrapers (19) for scraping off the adhering substances on the inner wall of the tank (1) are mounted on the rotating frame (17).

2. The mixing tank for producing composite stearate according to claim 1, characterized in that, The transmission mechanism includes an active internal gear sleeve (32) coaxially fixedly connected to the main shaft (15), a rotating sleeve (24) rotatably sleeved on the main shaft (15), a driven internal gear sleeve (33) coaxially fixedly connected to the top of the rotating sleeve (24), a first gear (34) and a second gear (35) rotatably mounted between the active internal gear sleeve (32) and the driven internal gear sleeve (33), the active internal gear sleeve (32) meshes with the upper half of the second gear (35), the lower half of the second gear (35) meshes with the upper half of the first gear (34), and the lower half of the first gear (34) meshes with the driven internal gear sleeve (33); the rotating sleeve (24) is fixedly connected to the rotating frame (17).

3. The mixing tank for producing composite stearate according to claim 2, characterized in that, A protective cover (23) is fixedly connected to the top of the inner side of the tank body (1). The bottom of the protective cover (23) is rotatably engaged with the rotating sleeve (24). The active inner gear sleeve (32), the driven inner gear sleeve (33), the first gear (34), and the second gear (35) are all located inside the protective cover (23). A fixing plate (37) is also fixedly installed inside the protective cover (23). The fixing plate (37) is located between the active inner gear sleeve (32) and the driven inner gear sleeve (33). A fixing sleeve is fixedly installed on the inner side of the fixing plate (37). 36) The fixed sleeve (36) is rotatably sleeved on the outside of the main shaft (15). The first mounting plate (38) is fixedly connected to the fixed sleeve (36). The first rotating shaft (39) is rotatably mounted on the first mounting plate (38). The first rotating shaft (39) is coaxially fixedly connected to the first gear (34). The fixed sleeve (36) is also fixedly mounted with a second mounting plate (40). The second rotating shaft (41) is rotatably mounted on the second mounting plate (40). The second rotating shaft (41) is coaxially fixedly connected to the second gear (35).

4. The mixing tank for producing composite stearate according to claim 2, characterized in that, The rotating frame (17) includes two crossbeams (25) located on both sides of the rotating sleeve (24) and fixedly connected to the rotating sleeve (24). A vertical beam (26) extending downward is fixedly connected to one end of the crossbeam (25) away from the rotating sleeve (24). An inclined beam (27) extending inward and tilting downward is fixedly connected to one end of the vertical beam (26) away from the crossbeam (25). A common connecting plate (31) is connected to one end of the two inclined beams (27) that are close to each other. The connecting plate (31) is rotatably connected to the main shaft (15). Several scrapers (19) are detachably installed on the outer side of the crossbeams (25) and the inclined beams (27).

5. The mixing tank for producing composite stearate according to claim 4, characterized in that, Several mounting seats (18) are fixedly installed on the outer side of the vertical beam (26) and the inclined beam (27). The mounting seats (18) are provided with rectangular mounting grooves, and scrapers (19) are inserted into the mounting grooves. The mounting grooves and scrapers (19) are detachably fixedly connected by bolts.

6. The mixing tank for producing composite stearate according to claim 4, characterized in that, Several inclined auxiliary stirring blades (20) are fixedly connected to the inner side of the vertical beam (26).

7. The mixing tank for producing composite stearate according to claim 6, characterized in that, The stirring fan (16) is provided in several parts. The stirring fan (16) includes a mounting sleeve (29) that is coaxially fixedly connected to the main shaft (15). Several main stirring blades (30) arranged in a circular array and tilted are fixedly installed on the mounting sleeve (29).

8. The mixing tank for producing composite stearate according to claim 7, characterized in that, The stirring fan (16) and the auxiliary stirring blade (20) are arranged at intervals in the vertical direction, and the main stirring blade (30) and the auxiliary stirring blade (20) are inclined in opposite directions.

9. The mixing tank for producing composite stearate according to claim 4, characterized in that, The bottom of the tank (1) is fixedly connected to a number of circumferentially arrayed support legs (22), and the top of the support legs (22) is fixedly connected to a support base (21). The support base (21) and the connecting plate (31) are rotatably engaged.

10. The mixing tank for producing composite stearate according to claim 9, characterized in that, The top of the support base (21) is fixedly connected to an annular limiting block (42), and the bottom of the connecting plate (31) is provided with an annular limiting groove (28) that cooperates with the annular limiting block (42). The limiting block (42) and the limiting groove (28) slide together.

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