Synthesis system of potassium iso-octoate drier

Abstract

The synthesis system comprises a saponification kettle and a filter, a driving box is arranged on one side of the filter, a filter plate is arranged in the filter and obliquely arranged, and the side, away from the driving box, of the filter plate obliquely extends upwards to the outside of the filter. A sliding rail is fixed to the side, close to the filter, of the driving box and located over the filter, an impurity scraper is installed on the sliding rail, and the driving box drives the impurity scraper to move horizontally. The filter plate adopts an inclined design and is matched with a smooth transition structure of the bent guide plate, so that scraped impurities naturally slide down and are discharged under the action of gravity, and the manual cleaning requirement is reduced. The impurity scraper realizes dual-mode switching of low-speed scraping and quick resetting through a state switching mechanism, and the low-speed mode prolongs the contact time of a scraper plate and a filter plate and improves the scraping force; the rotary scrapers synchronously rotate to crush impurities in the moving process, and the cleaning effect is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of the synthesis of potassium isooctanoate drier, and particularly to a synthesis system of potassium isooctanoate drier. Background Art

[0002] Potassium isooctanoate (K15), as an efficient drier, has been widely used in the fields of coatings, unsaturated polyester resins, polyurethane rigid foams, etc. In recent years, the global coatings market has been growing continuously. The sales reached 171 billion US dollars in 2021, and the total output value is expected to increase to 370 billion yuan in 2025. At the same time, China ranks first in the world in the production of unsaturated polyester resins. In 2022, about 3,000 tons of drier were demanded, and the annual demand for drier in the paint industry reached 10,000 - 15,000 tons. The market demand for potassium isooctanoate drier is increasing day by day, but there are still technical bottlenecks to be optimized in the existing production processes.

[0003] The traditional synthesis process of potassium isooctanoate includes steps such as saponification reaction, vacuum distillation, and filtration. Among them, the filtration link is a key process for separating solid impurities in the reaction products.

[0004] However, most of the existing filtration systems adopt fixed filter plates, and impurities are easily accumulated on the surface of the filter plates, resulting in frequent clogging problems. It is necessary to stop the machine frequently for manual cleaning, which seriously restricts the production efficiency.

[0005] In response to the above problems, the existing technologies have tried to improve by optimizing the filter plate structure or introducing complex drive systems, but the effects are limited. For example, some devices adopt multi-stage filtration or vibrating slag cleaning designs, which can relieve clogging to some extent but increase the equipment complexity and maintenance costs. Other solutions add high-pressure flushing systems, which can improve the cleaning efficiency but significantly increase the energy consumption and are not suitable for heat-sensitive materials. Therefore, there is an urgent need for an efficient and intelligent filtration system that can ensure the cleaning effect while taking into account production continuity and equipment reliability.

[0006] The present invention is proposed to solve the problems of low filtration efficiency, excessive manual intervention, and incomplete impurity removal in the existing technologies, and to optimize and upgrade the synthesis process of potassium isooctanoate drier through innovative designs. Summary of the Invention

[0007] To solve the problems mentioned in the above background art, the present invention provides a synthesis system of potassium isooctanoate drier.

[0008] To achieve the above object, the present invention adopts the following technical solutions:

[0009] A synthesis system for potassium isooctanoate drier, comprising a saponification kettle and a filter. One side of the filter is provided with a drive box. Inside the filter, there is a filter plate which is inclined. The side of the filter plate away from the drive box extends obliquely upward to the outside of the filter. Above the filter and directly above the side of the drive box close to the filter, a slide rail is fixed. An impurity scraper is installed on the slide rail. The drive box drives the impurity scraper to move horizontally, and the slide rail is arranged parallel to the filter plate.

[0010] At the bottom end of the slide rail, a slider is installed. A support frame is fixed on the slider. A scraper is installed on the support frame through a lifting guide rod.

[0011] Preferably, a first horizontal shaft is rotatably installed in the drive box. A wide gear and a first gear are fixed on the outer part of the first horizontal shaft. In the drive box, a threaded sleeve is also rotatably installed through a bracket. A first gear disc is fixed on the outer part of the threaded sleeve.

[0012] Preferably, a threaded rod is installed in the threaded sleeve. One end of the threaded rod is fixed with a second gear disc. The second gear disc meshes with the wide gear, and the diameter of the second gear disc is larger than that of the first gear disc.

[0013] Preferably, a state conversion frame is also rotatably installed on the outer part of the first horizontal shaft. A second gear, a third gear and a fourth gear are respectively rotatably installed on the state conversion frame. The second gear and the third gear respectively directly mesh with the first gear from both sides. The fourth gear meshes with the third gear.

[0014] Preferably, a switching cylinder is fixed in the drive box. The output shaft of the switching cylinder is fixed with a switching rack. An arc rack is fixed on the state conversion frame. The switching rack meshes with the arc rack.

[0015] Preferably, the top end of the lifting guide rod is fixed with a mounting frame. The top end of the mounting frame is fixed with a lifting member. A rectangular opening is formed in the lifting member. A horizontally arranged lifting rod is fixed on the state conversion frame. The lifting rod passes through the lifting member through the rectangular opening.

[0016] Preferably, a plurality of vertical shafts are rotatably installed at the bottom end of the mounting frame. The vertical shafts are located on the side of the scraper away from the drive box. The bottom end of each vertical shaft is fixed with a rotary scraper. The top end of each rotary scraper is fixed with a first pulley. A plurality of first pulleys are connected in sequence through a belt.

[0017] Preferably, a fifth gear is fixed at the top end of one of the vertical shafts. A horizontal rack is fixed on the side wall of the drive box. The fifth gear meshes with the horizontal rack.

[0018] Preferably, one end of the first horizontal shaft is fixed with a second pulley. A rotary motor is installed on the outer wall of the drive box. The output shaft of the rotary motor is fixed with a third pulley. The second pulley and the third pulley are driven by a belt.

[0019] Preferably, a bent guide plate is fixed on the side of the filter plate away from the drive box, and there is a smooth transition between the bent guide plate and the filter plate. The filter is provided with a liquid inlet pipe and a liquid discharge pipe.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. High-efficiency impurity removal mechanism: The filter plate is inclined, and with the smooth transition structure of the bent guide plate, the scraped impurities naturally slide down under the action of gravity, reducing the need for manual cleaning. The impurity scraper realizes the dual-mode switching of low-speed scraping and quick reset through the state conversion mechanism. The low-speed mode prolongs the contact time between the scraper and the filter plate, improving the scraping force; the rotating scraper rotates and breaks the impurities synchronously during movement, enhancing the cleaning effect.

[0022] 2. Intelligent state switching system: The state conversion frame is driven by a cylinder to realize the automatic switching between the scraping mode and the reset mode. In the scraping mode, the second gear meshes with the first gear disk to provide low-speed and high-torque power; in the reset mode, the fourth gear switches to mesh to achieve a quick return stroke, taking into account both the cleaning efficiency and the equipment life. At the same time, the height of the scraper is adjusted synchronously with the mode switching to avoid secondary pollution caused by contact with the filter plate during reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 It is the flow chart of the present invention;

[0025] Figure 2 It is the front perspective sectional view of the filter of the present invention;

[0026] Figure 3 It is the top view of the filter of the present invention;

[0027] Figure 4 It is the three-dimensional view of the filter of the present invention;

[0028] Figure 5 It is the front perspective sectional view of the filter of the present invention;

[0029] Figure 6 It is the enlarged detailed view of the drive box and the impurity scraper of the present invention;

[0030] Figure 7Schematic diagram of the main perspective of the internal structure of the drive box of the present invention;

[0031] Figure 8 Stereogram of the internal structure of the drive box of the present invention;

[0032] Figure 9 Schematic diagram of the state conversion frame of the present invention in the intermediate transition state;

[0033] Figure 10 Schematic diagram of the state conversion frame of the present invention in the state where the first gear disk meshes with the fourth gear;

[0034] Figure 11 Schematic diagram of the state conversion frame of the present invention in the state where the first gear disk meshes with the second gear;

[0035] In the figure: 1, saponification kettle; 2, filter; 201, liquid inlet pipe; 202, liquid discharge pipe; 203, filter plate; 204, bent guide plate; 3, drive box; 301, first horizontal shaft; 302, rotary motor; 303, second pulley; 304, wide gear; 307, threaded rod; 308, second gear disk; 309, threaded sleeve; 310, first gear disk; 311, first gear; 312, state conversion frame; 313, second gear; 314, third gear; 315, fourth gear; 316, arc rack; 317, lifting rod; 318, switching cylinder; 319, switching rack; 320, support frame; 4, impurity scraper; 401, mounting frame; 402, lifting guide rod; 403, scraper; 404, lifting member; 405, rectangular opening; 406, vertical shaft; 407, rotary scraper; 408, first pulley; 409, fifth gear; 410, horizontal rack. Detailed implementation manners

[0036] To make the objectives, 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 with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] Embodiment 1

[0038] Refer to Figures 1-11, A synthesis system for potassium isooctanoate drier, including a saponification kettle 1 and a filter 2. On one side of the filter 2, there is a drive box 3. Inside the filter 2, there is a filter plate 203. The filter plate 203 is inclined. The side of the filter plate 203 away from the drive box 3 extends obliquely upward to the outside of the filter 2. On the side of the drive box 3 close to the filter 2 and directly above the filter 2, there is a slide rail 305. An impurity scraper 4 is installed on the slide rail 305. The drive box 3 drives the impurity scraper 4 to move horizontally, and the slide rail 305 is arranged parallel to the filter plate 203;

[0039] At the bottom end of the slide rail 305, there is a slider 306. On the slider 306, there is a support frame 320. On the support frame 320, a scraper 403 is installed through a lifting guide rod 402;

[0040] On the side of the filter plate 203 away from the drive box 3, there is a bent guide plate 204. The bent guide plate 204 and the filter plate 203 have a smooth transition. On the filter 2, there are a liquid inlet pipe 201 and a liquid discharge pipe 202;

[0041] First, potassium hydroxide is added into the saponification kettle 1, and then isooctanoic acid is gradually added for saponification reaction. The temperature is heated up to 80 °C, and water is distilled under reduced pressure. First, about 50% of the theoretical water content is distilled out. After adding diethylene glycol, water is continuously distilled until the water content is 3 - 3.5%. Then the material is filtered through the filter 2;

[0042] The material enters above the filter plate 203 inside the filter 2 through the liquid inlet pipe 201, is filtered by gravity, the product flows out through the liquid discharge pipe 202, and the solid impurities remain at the top of the filter plate 203;

[0043] The drive box 3 drives the impurity scraper 4 to move horizontally back and forth, thereby driving the scraper 403 to scrape the material. The scraper 403 can be lifted and lowered. When the scraper 403 moves towards the bent guide plate 204, the scraper 403 descends to contact the filter plate 203, thereby scraping the filtered impurities to the top of the bent guide plate 204 and sliding them outside the filter 2. When the scraper 403 moves back and away from the bent guide plate 204 to reset, the scraper 403 is lifted, which can prevent the impurities from being brought back to the top of the filter plate 203 and causing secondary pollution.

[0044] Example 2

[0045] Refer to Figures 1-11, The difference between this embodiment and Embodiment 1 is that a first horizontal shaft 301 is rotatably installed in the drive box 3. A wide gear 304 and a first gear 311 are fixed to the outside of the first horizontal shaft 301. A threaded sleeve 309 is also rotatably installed in the drive box 3 through a bracket. A first gear disc 310 is fixed to the outside of the threaded sleeve 309. A second pulley 303 is fixed to one end of the first horizontal shaft 301. A rotary motor 302 is installed on the outer wall of the drive box 3. A third pulley is fixed to the output shaft of the rotary motor 302. The second pulley 303 and the third pulley are driven by a belt;

[0046] When the rotary motor 302 is turned on, the rotation of the first horizontal shaft 301 can be driven through the transmission of the second pulley 303, the third pulley and the belt, and then the rotation of the wide gear 304 can be driven. A threaded rod 307 is installed in the threaded sleeve 309. A second gear disc 308 is fixed to one end of the threaded rod 307. The second gear disc 308 meshes with the wide gear 304, and the diameter of the second gear disc 308 is larger than the diameter of the first gear disc 310;

[0047] When the wide gear 304 rotates, the rotation of the second gear disc 308 can be driven through meshing, so as to drive the rotation of the threaded rod 307. Due to the existence of the threaded sleeve 309, the slider 306 and the second gear disc 308 can be driven to move horizontally. The wide gear 304 can ensure that the two remain meshed during the horizontal movement of the second gear disc 308.

[0048] Wherein, a state conversion frame 312 is also rotatably installed on the outside of the first horizontal shaft 301. A second gear 313, a third gear 314 and a fourth gear 315 are rotatably installed on the state conversion frame 312 respectively. The second gear 313 and the third gear 314 are directly meshed with the first gear 311 from both sides respectively. The fourth gear 315 is meshed with the third gear 314;

[0049] Refer to Figure 9 、 10With respect to 11, through the rotation of the state conversion frame 312, it can be switched between two states. By rotating respectively, the second gear 313 and the fourth gear 315 are engaged with the first gear disk 310. When the second gear 313 is engaged with the first gear disk 310, at this time, since the first gear 311 and the second gear disk 308 rotate in the same direction, the first gear 311 is engaged with the second gear 313 and then with the first gear disk 310, making the rotation direction of the first gear disk 310 the same as that of the second gear disk 308. And due to the meshing transmission, by adjusting the appropriate transmission ratio, it is ensured that the rotational speed of the first gear disk 310 is slightly higher than that of the second gear disk 308. The rotational speed difference between the two drives the impurity scraper 4 to slowly move towards the bending guide plate 204 to scrape the materials. Because of the low-speed movement, the contact time between the scraper 403 and the impurities on the surface of the filter plate 203 is longer, and the particles or residues attached to the filter plate can be scraped off more fully, reducing the residue. The relative force of the scraper 403 on the impurities is more stable. The friction force can be increased by reducing the sliding speed, thereby increasing the scraping force, especially suitable for impurities with strong viscosity or adhesion. And the mechanical impact force between the scraper 403 and the filter plate 203 can be reduced, avoiding the splashing of impurities or the wear of the filter plate 203 caused by high-speed collision, and at the same time extending the service life of the equipment;

[0050] When the fourth gear 315 is engaged with the first gear disk 310, at this time, the power transmission is from the first gear 311 to the third gear 314 to the fourth gear 315 and then to the first gear disk 310. At this time, the first gear disk 310 will rotate in the opposite direction to the second gear disk 308 and have a large rotational speed difference, so as to drive the impurity scraper 4 to quickly move away from the bending guide plate 204, thus achieving the purpose of quick reset and improving the cleaning efficiency.

[0051] Embodiment 3

[0052] Refer to Figures 1-11 In this embodiment, the difference from Embodiment 2 is that a switching cylinder 318 is fixed in the drive box 3. The output shaft of the switching cylinder 318 is fixed with a switching rack 319, and an arc rack 316 is fixed on the state conversion frame 312. The switching rack 319 is engaged with the arc rack 316. By the telescopic movement of the switching cylinder 318, the switching rack 319 can be driven to move horizontally, and then by the engagement of the switching rack 319 and the arc rack 316, the state conversion frame 312 can be driven to rotate and switch between two states.

[0053] Among them, the top end of the lifting guide rod 402 is fixed with a mounting frame 401, the top end of the mounting frame 401 is fixed with a lifting member 404, a rectangular opening 405 is provided on the lifting member 404, and a horizontally arranged lifting rod 317 is fixed on the state conversion frame 312. The lifting rod 317 passes through the lifting member 404 through the rectangular opening 405;

[0054] When switching to the fourth gear 315 meshing with the first gear disc 310, the lifting rod 317 is at a high position at this time, and can pull the scraper 403 away from the filter plate 203 through the lifting member 404. When switching to the second gear 313 meshing with the first gear disc 310, the lifting rod 317 is at a low position at this time, and can push the scraper 403 to contact the filter plate 203 for scraping, achieving the purpose of automatic switching through a linkage method.

[0055] Embodiment 4

[0056] Refer to Figures 1-11 , the difference between this embodiment and Embodiment 3 is that a plurality of vertical shafts 406 are rotatably installed at the bottom end of the mounting frame 401. The vertical shafts 406 are located on the side of the scraper 403 away from the drive box 3, and a rotary scraper 407 is fixed to the bottom end of the vertical shaft 406. A first pulley 408 is fixed to the top end of the rotary scraper 407. The plurality of first pulleys 408 are sequentially connected by belts. A fifth gear 409 is fixed to the top end of one of the vertical shafts 406, and a horizontal rack 410 is fixed to the side wall of the drive box 3. The fifth gear 409 meshes with the horizontal rack 410;

[0057] When the impurity scraper 4 moves horizontally, due to the engagement of the fifth gear 409 with the horizontal rack 410, it can drive one of the vertical shafts 406 to rotate. Then, through the transmission of the first pulley 408 and the belt, the plurality of vertical shafts 406 can be driven to rotate synchronously, so that the impurities accumulated at the top of the filter plate 203 can be pre-crushed by the rotary scraper 407, so that the impurities are separated from the filter plate 203 and remain loose, making the scraping by the scraper 403 cleaner.

[0058] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0059] In the present invention, unless otherwise clearly specified and defined, terms such as "arranged", "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] The control mode of the present invention is automatically controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art. The provision of power supply also belongs to the common general knowledge in the art. And the present invention is mainly used to protect mechanical devices, so the control mode and circuit connection of the present invention will not be explained in detail herein.

[0061] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent replacements or changes, shall be covered by the protection scope of the present invention.

Claims

1. A synthesis system for potassium isooctanoate drier, comprising a saponification kettle (1) and a filter (2), characterized in that: On one side of the filter (2), there is a drive box (3). Inside the filter (2), there is a filter plate (203). The filter plate (203) is inclined. The side of the filter plate (203) away from the drive box (3) extends obliquely upward to the outside of the filter (2). On the side of the drive box (3) close to the filter (2) and directly above the filter (2), a slide rail (305) is fixed. An impurity scraper (4) is installed on the slide rail (305). The drive box (3) drives the impurity scraper (4) to move horizontally, and the slide rail (305) is arranged parallel to the filter plate (203). At the bottom end of the slide rail (305), a slider (306) is installed. On the slider (306), a support frame (320) is fixed. On the support frame (320), a scraper (403) is installed through a lifting guide rod (402).

2. The synthesis system of an isooctanoic acid potassium drier according to claim 1, characterized in that: Inside the drive box (3), a first horizontal shaft (301) is rotatably installed. Outside the first horizontal shaft (301), a wide gear (304) and a first gear (311) are fixed. Inside the drive box (3), a threaded sleeve (309) is also rotatably installed through a bracket. Outside the threaded sleeve (309), a first gear disk (310) is fixed.

3. The synthesis system of an isooctanoic acid potassium drier according to claim 2, characterized in that: Inside the threaded sleeve (309), a threaded rod (307) is installed. One end of the threaded rod (307) is fixed with a second gear disk (308). The second gear disk (308) meshes with the wide gear (304), and the diameter of the second gear disk (308) is larger than the diameter of the first gear disk (310).

4. A synthesis system for potassium isooctanoate drier according to claim 3, characterized in that: Outside the first horizontal shaft (301), a state conversion frame (312) is also rotatably installed. On the state conversion frame (312), a second gear (313), a third gear (314), and a fourth gear (315) are respectively rotatably installed. The second gear (313) and the third gear (314) respectively mesh with the first gear (311) directly from both sides. The fourth gear (315) meshes with the third gear (314).

5. The synthesis system of an isooctanoic acid potassium drier according to claim 4, characterized in that: Inside the drive box (3), a switching cylinder (318) is fixed. The output shaft of the switching cylinder (318) is fixed with a switching rack (319). On the state conversion frame (312), an arc rack (316) is fixed. The switching rack (319) meshes with the arc rack (316).

6. The synthesis system of an isooctanoate potassium drier according to claim 4, characterized in that: At the top end of the lifting guide rod (402), a mounting frame (401) is fixed. At the top end of the mounting frame (401), a lifting member (404) is fixed. On the lifting member (404), a rectangular opening (405) is formed. On the state conversion frame (312), a horizontally arranged lifting rod (317) is fixed. The lifting rod (317) passes through the lifting member (404) through the rectangular opening (405).

7. The synthesis system of an isooctanoic acid potassium drier according to claim 6, wherein: At the bottom end of the mounting frame (401), multiple vertical shafts (406) are rotatably installed. The vertical shafts (406) are located on the side of the scraper (403) away from the drive box (3). At the bottom end of the vertical shafts (406), a rotary scraper (407) is fixed. At the top end of the rotary scraper (407), a first pulley (408) is fixed. The multiple first pulleys (408) are connected in sequence through a belt.

8. The synthesis system of an isooctanoate potassium drier according to claim 7, characterized in that: A fifth gear (409) is fixed to the top end of one of the vertical shafts (406), and a horizontal rack (410) is fixed to the side wall of the drive box (3). The fifth gear (409) meshes with the horizontal rack (410).

9. The synthesis system of an isooctanoic acid potassium drier according to claim 1, wherein: One end of the first horizontal shaft (301) is fixed with a second pulley (303), a rotary motor (302) is installed on the outer wall of the drive box (3), the output shaft of the rotary motor (302) is fixed with a third pulley, and the second pulley (303) and the third pulley are driven by a belt.

10. The synthesis system of an isooctanoate potassium drier according to claim 1, characterized in that: A bent guide plate (204) is fixed to the side of the filter plate (203) away from the drive box (3). The bent guide plate (204) and the filter plate (203) are smoothly transitioned. A liquid inlet pipe (201) and a liquid discharge pipe (202) are provided on the filter (2).

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