A low-softening cobalt salt binder wet preparation device and process

Abstract

This invention relates to the field of reaction apparatus, and more particularly to a wet preparation apparatus and process for low-softening cobalt salt adhesives. The preparation apparatus includes a reaction vessel, with a vessel cover mounted on the top of the reaction vessel via a connecting flange. A drive motor is mounted on the upper end of the vessel cover, and the output end of the drive motor is connected to a stirring shaft via a coupling. A fixing plate is fixedly mounted on the bottom of the vessel cover. The stirring shaft is rotatably mounted through the center of the fixing plate. A drive column and an eccentric block are fixedly mounted on the stirring shaft. Scraping components and dripping components are respectively mounted on both sides of the upper end of the fixing plate. This invention coordinates the dripping process with the stirring and rotation process, allowing the dripping rate to adaptively adjust with the stirring speed, and ensuring that the amount of solution added matches the stirring speed, effectively improving the reaction rate.

Description

Technical Field

[0001] This invention relates to the field of reaction apparatus technology, and in particular to a wet preparation apparatus and process for low-softening cobalt salt binders. Background Technology

[0002] Low softening-point cobalt salt adhesives are additives used to improve the adhesion between rubber and metal skeleton materials. Their core function is to promote the formation of a strong copper sulfide / zinc sulfide transition layer at the rubber-metal interface during rubber vulcanization, thereby achieving a robust chemical bond. Wet preparation refers to the process of synthesizing this cobalt salt through solution reaction. Compared with dry preparation, it has advantages such as milder reaction, higher product purity, and easier control of the softening point.

[0003] In the wet process of preparing cobalt salt binders, the reaction solution is thoroughly stirred and mixed in a reactor. During the feeding process, a dripping system is needed to uniformly and stably add the reaction solution to the raw material solution in the reactor. Currently, the dripping equipment is often independently installed on one side of the reactor. During the reaction preparation process, the dripping rate needs to be manually adjusted according to the reaction progress, which can easily lead to inaccurate dripping rate adjustment. Adding the solution too quickly or too slowly will affect the quality of the final product. Summary of the Invention

[0004] The purpose of this invention is to provide a wet preparation apparatus and process for low-softening cobalt salt adhesives, aiming to solve the above-mentioned technical problems.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A wet preparation apparatus for low-softening cobalt salt adhesive includes a reactor. A reactor lid is mounted on the top of the reactor via a connecting flange. A drive motor is mounted on the upper end of the reactor lid. The output end of the drive motor is connected to a stirring shaft via a coupling. A fixed plate is fixedly installed at the bottom of the reactor lid. The stirring shaft is rotatably mounted through the center of the fixed plate. A drive column and an eccentric block are fixedly mounted on the stirring shaft. A scraping assembly and a dripping assembly are respectively mounted on both sides of the upper end of the fixed plate. The scraping assembly includes a lifting shaft and an annular scraper. The drive column and the lifting shaft are driven together to cause the annular scraper to scrape up and down along the inner wall of the reactor. The dripping assembly includes a first slide, a second slide, and a dripping cylinder. The eccentric block and the dripping assembly are driven together to cause the dripping cylinder to intermittently drip liquid into the reactor.

[0007] As a further embodiment of the present invention: the lifting shaft is slidably mounted on the fixed plate, a pin is provided on one side of the top end of the lifting shaft extending toward the drive column, a curved closed groove is provided on the outer wall of the drive column, the end of the pin is adapted to be slidably mounted in the curved closed groove, a baffle is provided on the lifting shaft, and a return spring is provided between the bottom of the baffle and the fixed plate.

[0008] As a further embodiment of the present invention: two annular scrapers are provided above and below, both of which are attached to the inner wall of the reactor. The two annular scrapers are fixedly connected by a connecting plate. The bottom end of the lifting shaft is fixedly connected to the upper annular scraper. Multiple sets of stirrers are provided on the stirring shaft. Auxiliary stirring blades are rotatably installed on the inner wall of the connecting plate.

[0009] As a further embodiment of the present invention: a guide rod is fixedly provided at the top of the annular scraper above, and the guide rod is slidably installed on the fixed plate.

[0010] As a further embodiment of the present invention: the first slide block is fixedly mounted on the fixed plate, and a first slider is horizontally slidably mounted inside the first slide block. A roller is rotatably mounted at one end of the first slider. A compression spring is provided between the other end of the first slider and the first slide block. The roller always abuts against the outer wall of the eccentric block. The second slide block is fixedly mounted on the side wall of the dripping cylinder. A second slider is vertically slidably mounted inside the second slide block. The upper end of the first slider is rotatably engaged with one end of the connecting rod. The other end of the connecting rod is rotatably engaged with the second slider. A compression spring is provided between the top end of the second slider and the second slide block. A matching rod is fixedly mounted at the bottom end of the second slider. The matching rod slides through the bottom of the second slide block.

[0011] As a further embodiment of the present invention: a fixing rod is fixedly provided at the top of the second slider, the fixing rod slides through the top of the second slider and is fixedly connected to one end of the synchronization plate, and a piston plate is adapted to be slidably installed inside the dripping cylinder, the top of the piston plate is fixedly provided with a fixing rod, the fixing rod slides through the top of the dripping cylinder and is fixedly connected to the other end of the synchronization plate.

[0012] As a further aspect of the present invention: an inlet pipe is connected to the side wall of the dripping cylinder, the top end of the inlet pipe extends outward through the lid of the vessel, and the connection between the inlet pipe and the dripping cylinder is always located below the piston plate.

[0013] As a further embodiment of the present invention: the bottom of the dripping cylinder is connected to a liquid outlet pipe, the bottom end of the liquid outlet pipe passes through the fixing plate and extends into the reaction vessel, a solenoid valve is provided on the liquid outlet pipe, an elastic bow plate is provided on one side of the solenoid valve, a top block is provided on the inner wall of the elastic bow plate, an on / off switch for controlling the opening and closing of the liquid outlet pipe is provided on the side wall of the solenoid valve, and a pressing protrusion is provided on the bottom end of the mating rod near the elastic bow plate.

[0014] This invention also provides a wet preparation process for low-softening cobalt salt adhesives, using the aforementioned wet preparation apparatus for low-softening cobalt salt adhesives, comprising the following steps:

[0015] Step 1: Prepare raw materials. Dissolve precisely measured cobalt chloride or cobalt sulfate in deionized water to prepare a cobalt salt solution. Neutralize organic acid with sodium hydroxide solution under heating and stirring to prepare an organic acid sodium soap solution.

[0016] Step 2, feeding reaction: add cobalt salt solution into the reaction vessel, use the dripping component to evenly drip organic acid sodium soap solution into the cobalt salt solution, start stirring the mixed solution and reacting by the stirring shaft, and use the scraping component to scrape off the particles adhering to the vessel wall;

[0017] Step 3, separation and washing: Cool the reaction mixture to room temperature or lower, and perform solid-liquid separation by aligning it with a filter press to obtain a wet cobalt salt filter cake. Wash the filter cake repeatedly with a large amount of deionized water to thoroughly remove reaction byproducts and unreacted raw materials.

[0018] Step four, drying and shaping: the washed wet filter cake is transferred to a drying device and dried in a low-temperature vacuum environment. The dried block product is crushed and sieved to obtain the final cobalt salt product.

[0019] The beneficial effects of this invention are:

[0020] (1) By setting up a dripping assembly, the rotational motion of the stirring shaft can be converted into the reciprocating piston motion of the piston plate in the dripping tube. When the stirring shaft drives the eccentric block to rotate once, the piston plate will perform a push-pull action, and the dripping tube will automatically complete a pumping-drip cycle. This allows the dripping process to be coordinated with the stirring rotation process. The dripping tube will complete several drips for every few rotations of the stirring shaft. The faster the rotation, the faster the dripping. This allows the dripping rate to be adaptively adjusted according to the stirring speed, and the amount of solution added can be matched with the stirring speed, effectively improving the reaction rate.

[0021] (2) By setting up a scraping component, the lifting shaft moves up and down reciprocally with the rotation of the drive column, thereby pushing the annular scraper to scrape back and forth on the reactor wall to remove the reaction particles adhering to it. At the same time, when the annular scraper scrapes back and forth, it will drive the auxiliary stirring blade to disperse the mixture at different depths. Combined with the stirring shaft driving the horizontal stirring action of the stirrer, the mixture can be stirred more thoroughly and evenly, effectively improving the stirring quality. Attached Figure Description

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 This is a schematic diagram of the full cross-section of the present invention.

[0025] Figure 3 This is a schematic diagram of the internal structure of the reactor in this invention.

[0026] Figure 4 This is a schematic diagram of the scraping component in this invention.

[0027] Figure 5 This is a schematic diagram of the structure of the droplet assembly in this invention.

[0028] Figure 6 yes Figure 5 A magnified structural diagram of point A in the middle.

[0029] In the diagram: 1. Reactor; 11. Connecting flange; 12. Jacket; 2. Reactor cover; 3. Drive motor; 31. Coupling; 4. Stirring shaft; 41. Drive column; 411. Curved closed groove; 42. Eccentric block; 43. Stirrer; 5. Fixed plate; 6. Scraper assembly; 61. Lifting shaft; 611. Pin; 612. Baffle; 613. Return spring; 62. Annular scraper; 621. Connecting plate; 622. Guide rod; 63. Auxiliary stirring blade; 7. Drip assembly; 71. Sliding... 711. Slider 1; 712. Roller; 713. Compression Spring 1; 714. Connecting Rod; 72. Slide 2; 721. Slider 2; 722. Fixed Rod 1; 723. Compression Spring 2; 724. Synchronizing Plate; 725. Matching Rod; 7251. Pressing Protrusion; 73. Dropper; 731. Inlet Pipe; 732. Piston Plate; 733. Fixed Rod 2; 74. Outlet Pipe; 741. Solenoid Valve; 7411. Elastic Plate; 7412. Top Block; 7413. On / Off Switch. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1-5As shown, the present invention is a wet preparation device for low-softening cobalt salt adhesive, including a reactor 1. A reactor cover 2 is provided at the top of the reactor 1 through a connecting flange 11. A drive motor 3 is provided at the upper end of the reactor cover 2. The output end of the drive motor 3 is connected to a stirring shaft 4 through a coupling 31. A fixing plate 5 is fixedly installed at the bottom of the reactor cover 2. The stirring shaft 4 is rotatably installed through the center of the fixing plate 5. A drive column 41 and an eccentric block 42 are fixedly provided on the stirring shaft 4. A scraping assembly 6 and a dripping assembly 7 are respectively provided on both sides of the upper end of the fixing plate 5. The scraping assembly 6 includes a lifting shaft 61 and an annular scraper 62. The drive column 41 and the lifting shaft 61 are driven to make the annular scraper 62 scrape up and down along the inner wall of the reactor 1. The dripping assembly 7 includes a first slide 71, a second slide 72 and a dripping cylinder 73. The eccentric block 42 and the dripping assembly 7 are driven to make the dripping cylinder 73 drip intermittently into the reactor 1.

[0032] Specifically, by setting up a stirring shaft 4, a scraping assembly 6, and a dripping assembly 7, during the reaction preparation process, the stirring shaft 4 rotates to stir the raw materials in the reaction vessel 1. Simultaneously, the stirring shaft 4 drives the eccentric block 42 to engage with the dripping assembly 7, allowing the dripping cylinder 73 to intermittently drip synchronously with the stirring shaft 4. This links the stirring process with the dripping action; the faster the stirring, the faster the dripping, and vice versa, thus allowing the dripping rate to adaptively adjust with the stirring speed, effectively improving the reaction rate. At the same time, the stirring shaft 4 drives the drive column 41 to engage with the scraping assembly 6, causing the lifting shaft 61 to drive the annular scraper 62 to move up and down along the vessel wall, effectively preventing particulate matter generated in the reaction from adhering to the vessel wall and ensuring the quality of stirring.

[0033] like Figure 4 As shown, the lifting shaft 61 is slidably mounted on the fixed plate 5. A pin 611 is provided on one side of the top end of the lifting shaft 61 extending toward the drive column 41. A curved closed groove 411 is provided on the outer wall of the drive column 41. The end of the pin 611 is adapted to slide in the curved closed groove 411. A baffle 612 is provided on the lifting shaft 61. A return spring 613 is provided between the bottom of the baffle 612 and the fixed plate 5.

[0034] Specifically, during the rotation of the stirring shaft 4, the drive column 41 will rotate synchronously. During this process, the curved closed groove 411 on the drive column 41 will apply a thrust to the pin 611, causing the pin 611 to drive the lifting shaft 61 to move up and down reciprocally with the rotation of the drive column 41. This converts the rotational motion of the stirring shaft 4 into the lifting motion of the lifting shaft 61, so as to facilitate the scraping action of the annular scraper 62.

[0035] like Figure 4As shown, there are two annular scrapers 62 arranged at the top and bottom, both of which are close to the inner wall of the reactor 1. The two annular scrapers 62 are fixedly connected by a connecting plate 621. The bottom end of the lifting shaft 61 is fixedly connected to the upper annular scraper 62. Multiple sets of stirrers 43 are arranged on the stirring shaft 4. Auxiliary stirring blades 63 are rotatably installed on the inner wall of the connecting plate 621.

[0036] Furthermore, a guide rod 622 is fixedly installed at the top of the upper annular scraper 62, and the guide rod 622 is slidably installed on the fixed plate 5.

[0037] Specifically, by setting up the scraping component 6, the lifting shaft 61 moves up and down reciprocally with the rotation of the drive column 41, thereby pushing the annular scraper 62 to scrape back and forth on the reactor wall to remove the reaction particles adhering thereto. At the same time, when the annular scraper 62 scrapes up and down, it will drive the auxiliary stirring blade 63 to disperse the mixture at different depths. Combined with the horizontal stirring action of the stirrer 43 driven by the stirring shaft 4, the mixture can be stirred more thoroughly and evenly, effectively improving the stirring quality.

[0038] like Figure 4 and Figure 5 As shown, slide block 71 is fixed on the fixed plate 5. Slider 711 is horizontally slidably installed inside slide block 71. Roller 712 is rotatably installed at the end of slider 711. Compression spring 713 is provided between the other end of slider 711 and slide block 71. Roller 712 always abuts against the outer wall of eccentric block 42. Slide block 72 is fixed on the side wall of dripping cylinder 73. Slider 721 is vertically slidably installed inside slide block 72. The upper end of slider 711 is rotatably engaged with one end of connecting rod 714. The other end of connecting rod 714 is rotatably engaged with slider 721. Compression spring 723 is provided between the top of slider 721 and slide block 72. A matching rod 725 is fixedly installed at the bottom of slider 721. Matching rod 725 slides through the bottom of slide block 72.

[0039] Furthermore, a fixing rod 722 is fixedly provided at the top of the second slider 721. The fixing rod 722 slides through the top of the second slider 72 and is fixedly connected to one end of the synchronization plate 724. A piston plate 732 is adapted to be slidably installed inside the dripping cylinder 73. A fixing rod 733 is fixedly provided at the top of the piston plate 732. The fixing rod 733 slides through the top of the dripping cylinder 73 and is fixedly connected to the other end of the synchronization plate 724.

[0040] Specifically, during the rotation of the stirring shaft 4, the eccentric block 42 rotates synchronously. The eccentric block 42 pushes the slider 711 to reciprocate linearly within the slide block 71 via the roller 712. The slider 711, through the connecting rod 714, pushes the slider 721 to reciprocate up and down within the slide block 72. The slider 721, through the synchronous plate 724, drives the piston plate 732 to reciprocate within the dripping cylinder 73, thus converting the rotational motion of the stirring shaft 4 into the reciprocating piston motion of the piston plate 732 within the dripping cylinder 73. When the piston plate 732 moves upward, the internal pressure of the dripping cylinder 73 decreases, and the solution begins to be drawn in through the inlet pipe 731. When the piston moves downward, the internal pressure of the dripping cylinder 73 increases, pushing the solution out through the outlet pipe 74. When the stirring shaft 4 drives the eccentric block 42 to rotate once, the piston plate 732 will perform a push-pull action, and the inside of the dripping tube 73 will automatically complete a cycle of pumping and dripping. This allows the dripping process to be coordinated with the stirring and rotation process. The more the stirring shaft 4 rotates, the more times the dripping tube 73 will complete the dripping. The faster the rotation, the faster the dripping. This ensures that the amount of solution added can match the stirring speed, allowing the mixture to be fully stirred and reacted.

[0041] like Figure 5 As shown, an inlet pipe 731 is connected to the side wall of the dripping cylinder 73. The top of the inlet pipe 731 extends outward through the lid 2. The connection between the inlet pipe 731 and the dripping cylinder 73 is always located below the piston plate 732.

[0042] Specifically, the inlet pipe 731 is connected to an external solution tank, and the piston plate 732 is always located above the inlet. This allows the piston plate 732 to cause a change in the air pressure inside the dripping cylinder 73 when it is pulled, so that the dripping cylinder 73 can smoothly draw in the solution through the inlet pipe 731.

[0043] like Figure 5 and Figure 6 As shown, the bottom of the dripping cylinder 73 is connected to an outlet pipe 74. The bottom end of the outlet pipe 74 passes through the fixing plate 5 and extends into the reaction vessel 1. A solenoid valve 741 is installed on the outlet pipe 74. An elastic bow plate 7411 is installed on one side of the solenoid valve 741. A top block 7412 is installed on the inner wall of the elastic bow plate 7411. An on / off switch 7413 for controlling the opening and closing of the outlet pipe 74 is installed on the side wall of the solenoid valve 741. A pressing protrusion 7251 is installed on the side of the bottom of the mating rod 725 near the elastic bow plate 7411.

[0044] Specifically, by setting up a pressing protrusion 7251 and an elastic arch plate 7411, in the initial state, the pressing protrusion 7251 is located below the elastic arch plate 7411. At this time, the solenoid valve 741 is opened, causing the liquid outlet pipe 74 to open. When the cooperating rod 725 moves upward with the slider 721, the pressing protrusion 7251 will also gradually move upward until the pressing protrusion 7251 presses against the elastic arch plate 7411. At this time, the elastic arch plate 7411 is squeezed and deformed, and pushes the top block 7412 to press against the on / off switch 7413, thereby triggering the solenoid valve 741 to close. At this time, the liquid outlet pipe 74 is closed and the piston plate 732 moves upward synchronously, which is conducive to the smooth liquid extraction process of the dripping cylinder 73. As the pressure protrusion 7251 falls back from its highest point, it presses against the elastic arch plate 7411 again. The top block 7412 then presses against the on / off switch 7413, causing the solenoid valve 741 to reopen. At this time, the outlet pipe 74 opens and the piston plate 732 moves down simultaneously, thus pushing the solution in the dripping cylinder 73 smoothly through the outlet pipe 74 and dripping into the reaction vessel 1. The contact between the pressure protrusion 7251 and the elastic arch plate 7411 allows the opening and closing state of the outlet pipe 74 to automatically switch with the pulling action of the piston plate 732, ensuring that the dripping cylinder 73 smoothly achieves an intermittent cycle of pumping and dripping.

[0045] The working principle of the preparation device in this invention is as follows: Figures 1-6As shown, in use, the prepared cobalt salt solution is first added to the reaction vessel 1. The drive motor 3 drives the stirring shaft 4 to start stirring the solution. At the same time, the organic acid sodium soap solution is evenly added to the cobalt salt solution using the dripping assembly 7. During the dripping process, the stirring shaft 4 drives the eccentric block 42 to rotate synchronously. The eccentric block 42 pushes the slider 1 711 to move back and forth linearly in the slide block 1 71 through the roller 712. The slider 1 711 pushes the slider 2 721 to move back and forth in the slide block 2 72 through the connecting rod 714. The slider 2 721 drives the piston plate 732 to move back and forth in the dripping cylinder 73 through the synchronous plate 724. Thus, the rotational motion of the stirring shaft 4 can be converted into the reciprocating piston motion of the piston plate 732 in the dripping cylinder 73. When the piston plate 732 moves upward, the internal pressure of the dripping cylinder 73 decreases, and the solution begins to be drawn in through the inlet pipe 731. When the piston moves downward, the internal pressure of the dripping cylinder 73 increases, pushing the solution out through the outlet pipe 74. The stirring shaft 4 drives the eccentric block 42 to rotate one revolution, and the piston plate 732 performs one push-pull action. The dripping cylinder 73 automatically completes one cycle of extraction and dripping, thus enabling the dripping process to be coordinated with the stirring rotation process. The dripping cylinder 73 completes several drips for every revolution of the stirring shaft 4, and the faster the rotation, the faster the dripping. This allows the dripping rate to adaptively adjust with the stirring speed, matching the amount of solution added to the stirring speed and effectively improving the reaction rate. At the same time, the lifting shaft 61 moves up and down reciprocally with the rotation of the drive column 41, thereby pushing the annular scraper 62 to scrape back and forth on the reactor wall to remove the reaction particles adhering thereto. When the annular scraper 62 scrapes up and down, it will drive the auxiliary stirring blade 63 to disperse the mixture at different depths. Combined with the horizontal stirring action of the stirrer 43 driven by the stirring shaft 4, the mixture can be stirred more thoroughly and evenly, effectively improving the stirring quality.

[0046] This invention also provides a wet preparation process for low-softening cobalt salt adhesives, using the aforementioned wet preparation apparatus for low-softening cobalt salt adhesives, comprising the following steps:

[0047] Step 1: Prepare raw materials. Dissolve precisely measured cobalt chloride or cobalt sulfate in deionized water to prepare a cobalt salt solution. Neutralize organic acid with sodium hydroxide solution under heating and stirring to prepare an organic acid sodium soap solution.

[0048] Step 2, feeding reaction: add cobalt salt solution into reaction vessel 1, use the dripping component 7 to evenly drip organic acid sodium soap solution into cobalt salt solution, start stirring the mixed solution and react through the stirring shaft 4, and use the scraping component 6 to scrape off the particles adhering to the vessel wall.

[0049] Step 3, separation and washing: Cool the reaction mixture to room temperature or lower, and perform solid-liquid separation by aligning it with a filter press to obtain a wet cobalt salt filter cake. Wash the filter cake repeatedly with a large amount of deionized water to thoroughly remove reaction byproducts and unreacted raw materials.

[0050] Step four, drying and shaping: the washed wet filter cake is transferred to a drying device and dried in a low-temperature vacuum environment. The dried block product is crushed and sieved to obtain the final cobalt salt product.

[0051] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A wet preparation apparatus for low-softening cobalt salt adhesive, comprising a reactor (1), wherein a reactor lid (2) is provided at the top of the reactor (1) via a connecting flange (11), a drive motor (3) is provided at the upper end of the reactor lid (2), and a stirring shaft (4) is connected to the output end of the drive motor (3) via a coupling (31), characterized in that, A fixed plate (5) is fixedly installed at the bottom of the vessel cover (2). The stirring shaft (4) is rotatably installed in the center of the fixed plate (5). A drive column (41) and an eccentric block (42) are fixedly installed on the stirring shaft (4). A scraping assembly (6) and a dripping assembly (7) are respectively provided on both sides of the upper end of the fixed plate (5). The scraping assembly (6) includes a lifting shaft (61) and an annular scraper (62). The drive column (41) and the lifting shaft (61) are driven together so that the annular scraper (62) scrapes up and down along the inner wall of the reactor (1). The dripping assembly (7) includes a slide seat one (71), a slide seat two (72) and a dripping cylinder (73). The eccentric block (42) and the dripping assembly (7) are driven together so that the dripping cylinder (73) drips intermittently into the reactor (1). The first slide (71) is fixed on the fixed plate (5). A slider (711) is horizontally slidably installed inside the first slide (71). A roller (712) is rotatably installed at the end of the slider (711). A compression spring (713) is provided between the other end of the slider (711) and the first slide (71). The roller (712) always abuts against the outer wall of the eccentric block (42). The second slide (72) is fixed on the side wall of the dripping cylinder (73). Inside the second seat (72), a second slider (721) is vertically slidably installed. The upper end of the first slider (711) is rotatably engaged with one end of the connecting rod (714), and the other end of the connecting rod (714) is rotatably engaged with the second slider (721). A second compression spring (723) is provided between the top of the second slider (721) and the second slide seat (72). A matching rod (725) is fixedly provided at the bottom of the second slider (721), and the matching rod (725) slides through the bottom of the second slide seat (72). The top of the second slider (721) is fixedly provided with a first fixing rod (722), the first fixing rod (722) slides through the top of the second slider (72) and is fixedly connected to one end of the synchronization plate (724). The dripping cylinder (73) is adapted to slide and install a piston plate (732), the top of the piston plate (732) is fixedly provided with a second fixing rod (733), the second fixing rod (733) slides through the top of the dripping cylinder (73) and is fixedly connected to the other end of the synchronization plate (724). The dripping cylinder (73) is connected to the side wall of the dripping cylinder (73) by an inlet pipe (731). The top of the inlet pipe (731) extends outward through the lid (2). The connection between the inlet pipe (731) and the dripping cylinder (73) is always located below the piston plate (732). The bottom of the dripping cylinder (73) is connected to a liquid outlet pipe (74). The bottom end of the liquid outlet pipe (74) passes through the fixing plate (5) and extends into the reactor (1). A solenoid valve (741) is provided on the liquid outlet pipe (74). An elastic bow plate (7411) is provided on one side of the solenoid valve (7411). A top block (7412) is provided on the inner wall of the elastic bow plate (7411). An on / off switch (7413) for controlling the opening and closing of the liquid outlet pipe (74) is provided on the side wall of the solenoid valve (741). A pressing protrusion (7251) is provided on the side of the bottom end of the mating rod (725) near the elastic bow plate (7411).

2. The apparatus for wet preparation of low-softening cobalt salt binder according to claim 1, characterized in that, The lifting shaft (61) is slidably installed on the fixed plate (5). A pin (611) is provided on one side of the top end of the lifting shaft (61) extending toward the drive column (41). A curved closed groove (411) is provided on the outer wall of the drive column (41). The end of the pin (611) is adapted to be slidably installed in the curved closed groove (411). A baffle (612) is provided on the lifting shaft (61). A return spring (613) is provided between the bottom of the baffle (612) and the fixed plate (5).

3. The wet preparation apparatus for low-softening cobalt salt binders according to claim 2, characterized in that, Two annular scrapers (62) are arranged above and below each other and are attached to the inner wall of the reactor (1). The two annular scrapers (62) are fixedly connected by a connecting plate (621). The bottom end of the lifting shaft (61) is fixedly connected to the upper annular scraper (62). Multiple sets of stirrers (43) are arranged on the stirring shaft (4). An auxiliary stirring blade (63) is rotatably installed on the inner wall of the connecting plate (621).

4. The wet preparation apparatus for low-softening cobalt salt binders according to claim 3, characterized in that, A guide rod (622) is fixedly installed at the top of the annular scraper (62), and the guide rod (622) is slidably installed on the fixed plate (5).

5. A wet process for preparing low-softening cobalt salt binders, using the wet preparation apparatus for low-softening cobalt salt binders as described in claim 1, characterized in that, Includes the following steps: Step 1: Prepare raw materials. Dissolve precisely measured cobalt chloride or cobalt sulfate in deionized water to prepare a cobalt salt solution. Neutralize organic acid with sodium hydroxide solution under heating and stirring to prepare an organic acid sodium soap solution. Step 2, feeding reaction: add cobalt salt solution into reaction vessel (1), use drop component (7) to evenly drop organic acid sodium soap solution into cobalt salt solution, start stirring and reacting the mixed solution through stirring shaft (4), and use scraping component (6) to scrape off particles adhering to the vessel wall; Step 3, separation and washing: Cool the reaction mixture to room temperature or lower, and perform solid-liquid separation by aligning it with a filter press to obtain a wet cobalt salt filter cake. Wash the filter cake repeatedly with a large amount of deionized water to thoroughly remove reaction byproducts and unreacted raw materials. Step four, drying and shaping: the washed wet filter cake is transferred to a drying device and dried in a low-temperature vacuum environment. The dried block product is crushed and sieved to obtain the final cobalt salt product.

Images