High-quality MCA production process and production device thereof

Abstract

The invention relates to the technical field of melamine cyanurate production, in particular to a high-quality MCA production process and a high-quality MCA production device, the high-quality MCA production process comprises a tank body and a mixing assembly arranged in the middle of the tank body, and the mixing assembly comprises a material pushing part arranged in the middle of the tank body and a dispersing part arranged in the tank body; a mixing assembly is arranged in the tank body on the outer side of the material pushing part, when two solutions need to be mixed, the two solutions are put into the dispersing part and the tank body respectively, the material pushing part is started, the material pushing part disperses the solutions in the dispersing part into the tank body at a constant speed, and meanwhile the material pushing part drives the mixing assembly to continuously stir the solutions in the tank body; perfect regulation and control on mixing of the two solutions are realized.

Description

Technical Field

[0001] This invention relates to the field of melamine cyanurate production technology, and in particular to a high-quality MCA production process and its production apparatus. Background Technology

[0002] Melamine cyanurate (MCA) is an important nitrogen-based flame retardant, and it is widely used in the fields of plastics, rubber and cables.

[0003] The production process of melamine cyanurate requires mixing cyanuric acid solution and melamine solution, which necessitates mixing equipment for the mixing process.

[0004] In practice, existing technologies often involve directly injecting one solution into the solution being stirred when mixing two solutions. This results in a very rough control over the mixing of the two solutions, leading to incomplete mixing.

[0005] Based on this, the present invention designs a high-quality MCA production process and its production equipment to solve the above problems. Summary of the Invention

[0006] In view of the problem that solution mixing is difficult to control in the above or existing technologies, the present invention is proposed.

[0007] Therefore, the purpose of this invention is to provide a high-quality MCA production process and its production apparatus.

[0008] As a preferred embodiment of the high-quality MCA production process of the present invention, it includes the following steps;

[0009] S1: Add water at 90~100℃ and cyanuric acid to the mixing container and stir to dissolve;

[0010] S2: Filter the solution obtained from S1 to remove impurities and set it aside for later use;

[0011] S3: Add water at 90~100℃ and melamine to the mixing container and stir to dissolve;

[0012] S4: Filter the solution obtained in S3 to remove impurities and set it aside for later use;

[0013] S5: The solutions obtained from S2 and S3 are fed into a mixing device, and the solution obtained from S3 is uniformly mixed into the solution obtained from S2 within 20 minutes under continuous stirring;

[0014] S6: Filter the product obtained in S5 to obtain a crystalline product;

[0015] S7: Wash the crystalline product obtained in S6 with water at 90~100℃:

[0016] S8: The product from S7 is dried to obtain the final product.

[0017] As a preferred embodiment of the high-quality MCA production process of the present invention, wherein: cyanuric acid and melamine in S1 and S3 are completely dissolved.

[0018] As a preferred embodiment of the high-quality MCA production process of the present invention, the impurities filtered out in S2 and S4 are glass shards and carbon black.

[0019] The beneficial effects of the high-quality MCA production process of the present invention are as follows: By dissolving and removing impurities separately, the present invention ensures the purity of the cyanuric acid and melamine solutions, allowing glass slag and carbon black in the cyanuric acid and melamine solutions to be fully filtered out. Furthermore, since both cyanuric acid and melamine are completely dissolved, the final product is guaranteed to be free of cyanuric acid and melamine impurities, thereby improving the quality of melamine cyanurate.

[0020] In practical use, there is still the problem of difficulty in mixing the solutions.

[0021] To solve the above-mentioned technical problems, the present invention also provides the following technical solution: a production apparatus, including a high-quality MCA production process and a tank.

[0022] The mixing component located in the middle of the tank includes a pusher located in the middle of the tank and a dispersing component located inside the tank.

[0023] The pusher includes a piston plate disposed inside the tank body and a sleeve disposed at the end of the piston plate; and,

[0024] The dispersing component includes an inner cylinder disposed inside the tank body, wherein...

[0025] The piston plate is disposed inside the inner cylinder; and,

[0026] A mixing component is installed inside the tank on the outer side of the inner cylinder.

[0027] In a preferred embodiment of the production apparatus of the present invention, the pusher further includes a motor, the end of the tank is provided with a motor, the end of the motor is provided with a threaded rod, and the end of the threaded rod passes through the piston plate and is disposed in the sleeve.

[0028] In a preferred embodiment of the production apparatus of the present invention, the dispersing component further includes a dispersing plate, which is disposed at the end of the inner cylinder.

[0029] In a preferred embodiment of the production apparatus of the present invention, the mixing component includes a driving member, the end of the inner cylinder is provided with a driving member, and the end of the driving member is provided with a stirring member.

[0030] In a preferred embodiment of the production apparatus of the present invention, the driving component includes a turntable, the end of the inner cylinder is provided with a turntable, the end of the threaded rod is provided on the turntable, the inner wall of the tank is provided with an annular rack, and the inner side of the annular rack is provided with a gear.

[0031] In a preferred embodiment of the production apparatus of the present invention, the stirring component includes an auger, the end of the gear is provided with an auger, the end of the auger is provided with a rotating ring, and the end of the rotating ring is provided on the inner wall of the tank.

[0032] The beneficial effects of the production device of the present invention are as follows: When it is necessary to mix two solutions, the two solutions are placed into the dispersing component and the tank respectively. The pusher is activated, and the pusher uniformly disperses the solution in the dispersing component into the tank. At the same time, the pusher drives the mixing component to continuously stir the solution in the tank, thus achieving perfect control of the mixing of the two solutions. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the overall structure of the production apparatus of the present invention. Figure 1 .

[0035] Figure 2 This is a schematic diagram of the overall structure of the production apparatus of the present invention. Figure 2 .

[0036] Figure 3 This is a schematic diagram of the dispersion plate structure of the production apparatus of the present invention.

[0037] Figure 4 This is a schematic diagram of the threaded rod structure of the production device of the present invention.

[0038] Figure 5 This is a schematic diagram of the gear structure of the production apparatus of the present invention.

[0039] Figure 6 This is a schematic diagram of the auger structure of the production device of the present invention.

[0040] The labels in the diagram represent: 1. Tank body; 2. Mixing component; 21. Pusher; 211. Motor; 212. Threaded rod; 213. Piston plate; 214. Sleeve; 22. Dispersing component; 221. Inner cylinder; 222. Dispersing plate; 3. Mixing component; 31. Drive component; 311. Turntable; 312. Gear; 313. Ring rack; 32. Agitator; 321. Screwdriver; 322. Rotary ring; 4. Inlet and outlet components; 41. First inlet; 42. Second inlet; 43. Outlet. Detailed Implementation

[0041] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0042] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0043] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0044] Example 1 is the first embodiment of the present invention. This embodiment provides a high-quality MCA production process that can improve the quality of melamine cyanurate, and includes the following steps;

[0045] S1: Add 90°C water and cyanuric acid to the mixing container and stir to dissolve;

[0046] S2: Filter the solution obtained from S1 to remove impurities and set it aside for later use;

[0047] S3: Add 90°C water and melamine to the mixing container and stir to dissolve;

[0048] S4: Filter the solution obtained in S3 to remove impurities and set it aside for later use;

[0049] S5: The solutions obtained from S2 and S3 are fed into a mixing device, and the solution obtained from S3 is uniformly mixed into the solution obtained from S2 within 18 minutes under continuous stirring.

[0050] S6: Filter the product obtained in S5 to obtain a crystalline product;

[0051] S7: The crystalline product obtained in S6 is rinsed with water at 100°C.

[0052] S8: The product from S7 is dried to obtain the final product.

[0053] Both cyanuric acid and melamine in S1 and S3 were completely dissolved.

[0054] The impurities filtered out in S2 and S4 are glass shards and carbon black.

[0055] Separately dissolving and removing impurities from cyanuric acid and melamine ensures the purity of the cyanuric acid and melamine solutions, allowing glass shards and carbon black to be fully filtered out. Furthermore, by ensuring the complete dissolution of both cyanuric acid and melamine, the final product is free of cyanuric acid and melamine impurities, thereby improving the quality of melamine cyanurate.

[0056] Example 2 is the second embodiment of the present invention. This embodiment provides a high-quality MCA production process that can improve the quality of melamine cyanurate, and includes the following steps;

[0057] S1: Add 100°C water and cyanuric acid to the mixing container and stir to dissolve;

[0058] S2: Filter the solution obtained from S1 to remove impurities and set it aside for later use;

[0059] S3: Add 100°C water and melamine to the mixing container and stir to dissolve;

[0060] S4: Filter the solution obtained in S3 to remove impurities and set it aside for later use;

[0061] S5: The solutions obtained from S2 and S3 are fed into a mixing device, and the solution obtained from S3 is uniformly mixed into the solution obtained from S2 within 20 minutes under continuous stirring;

[0062] S6: Filter the product obtained in S5 to obtain a crystalline product;

[0063] S7: The crystalline product obtained in S6 is washed with water at 90°C.

[0064] S8: The product from S7 is dried to obtain the final product.

[0065] Both cyanuric acid and melamine in S1 and S3 were completely dissolved.

[0066] The impurities filtered out in S2 and S4 are glass shards and carbon black.

[0067] Example 3 is the third embodiment of the present invention. This embodiment provides a high-quality MCA production process that can improve the quality of melamine cyanurate, and includes the following steps;

[0068] S1: Add 95°C water and cyanuric acid to the mixing container and stir to dissolve;

[0069] S2: Filter the solution obtained from S1 to remove impurities and set it aside for later use;

[0070] S3: Add 95°C water and melamine to the mixing container and stir to dissolve;

[0071] S4: Filter the solution obtained in S3 to remove impurities and set it aside for later use;

[0072] S5: The solutions obtained from S2 and S3 are fed into a mixing device, and the solution obtained from S3 is uniformly mixed into the solution obtained from S2 within 19 minutes under continuous stirring;

[0073] S6: Filter the product obtained in S5 to obtain a crystalline product;

[0074] S7: The crystalline product obtained in S6 is washed with water at 95°C.

[0075] S8: The product from S7 is dried to obtain the final product.

[0076] Both cyanuric acid and melamine in S1 and S3 were completely dissolved.

[0077] The impurities filtered out in S2 and S4 are mainly glass shards and carbon black.

[0078] Example 4, refer to Figures 1 to 6 This is the fourth embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a high-quality MCA production apparatus capable of achieving uniform mixing of two solutions at a constant speed. It includes a tank 1.

[0079] Specifically, the mixing component 2, which is located in the middle of the tank 1, includes a pusher 21 located in the middle of the tank 1 and a dispersing component 22 located inside the tank 1.

[0080] Furthermore, a mixing component 2 is connected to the middle of the tank body 1;

[0081] The mixing component 2 includes a pusher 21, which is connected to the middle of the tank 1. A dispersing component 22 is connected to the outside of the pusher 21 and is located inside the tank 1.

[0082] Specifically, the pusher 21 includes a piston plate 213 disposed inside the tank body 1 and a sleeve 214 disposed at the end of the piston plate 213;

[0083] Furthermore, the pusher 21 includes a piston plate 213, which is located inside the tank 1. A sleeve 214 is fixedly connected to the top of the piston plate 213, and the upper end of the sleeve 214 passes through the top plate of the tank 1 and is slidably connected to the tank 1.

[0084] Specifically, the dispersing component 22 includes an inner cylinder 221 disposed inside the tank body 1.

[0085] Piston plate 213 is disposed inside inner cylinder 221;

[0086] A mixing component 3 is installed inside the tank body 1 outside the inner cylinder 221;

[0087] Furthermore, the dispersing component 22 includes an inner cylinder 221, and the outer wall of the piston plate 213 is fitted and slidably attached to the inner cylinder 221;

[0088] A mixing component 3 is connected between the inner cylinder 221 and the inner wall of the tank body 1;

[0089] Specifically, the pusher 21 also includes a motor 211. The end of the tank 1 is provided with a motor 211, and the end of the motor 211 is provided with a threaded rod 212. The end of the threaded rod 212 passes through the piston plate 213 and is provided in the sleeve 214.

[0090] Furthermore, the pusher 21 also includes a motor 211. The bottom of the tank 1 is fixedly connected to the motor 211. The output end of the motor 211 passes through the bottom plate of the tank 1 and is fixedly connected to a threaded rod 212. The upper end of the threaded rod 212 passes through the piston plate 213 and is inserted into the sleeve 214. The threaded rod 212 is threadedly connected to the piston plate 213.

[0091] A sliding strip is fixedly connected to the outer wall of the sleeve 214, and the sleeve 214 is slidably connected to the top plate of the tank 1 through the sliding strip;

[0092] Specifically, the dispersing component 22 also includes a dispersing plate 222, which is disposed at the end of the inner cylinder 221;

[0093] Furthermore, the dispersing component 22 also includes a dispersing plate 222, and several sets of dispersing plates 222 are connected to the upper outer wall of the inner cylinder 221.

[0094] Specifically, the mixing component 3 includes a driving member 31, the end of the inner cylinder 221 is provided with the driving member 31, and the end of the driving member 31 is provided with a stirring member 32.

[0095] Furthermore, the mixing component 3 includes a drive component 31, the lower end of the inner cylinder 221 is connected to the drive component 31, and the upper end of the drive component 31 is connected to the stirring component 32.

[0096] Specifically, the driving component 31 includes a turntable 311, the end of the inner cylinder 221 is provided with a turntable 311, the end of the threaded rod 212 is provided on the turntable 311, the inner wall of the tank body 1 is provided with an annular rack 313, and the inner side of the annular rack 313 is provided with a gear 312.

[0097] Furthermore, the drive component 31 includes a turntable 311. The lower end of the inner cylinder 221 is fixedly connected to the turntable 311 via a connecting column. The lower end of the threaded rod 212 passes through the middle of the turntable 311 and is fixedly connected to the turntable 311. The outer wall of the turntable 311 is rotatably connected to the inner wall of the tank 1. An annular rack 313 is fixedly connected to the inner wall of the tank 1 below the turntable 311. Several sets of gears 312 are meshed on the inner wall of the annular rack 313.

[0098] Specifically, the stirring component 32 includes an auger 321, the end of the gear 312 is provided with the auger 321, the end of the auger 321 is provided with a rotating ring 322, and the end of the rotating ring 322 is provided on the inner wall of the tank 1.

[0099] Furthermore, the stirring component 32 includes an auger 321, the upper end of the gear 312 is fixedly connected to the auger 321, the lower end of the auger 321 is rotatably connected to the turntable 311, and a rotating ring 322 is rotatably connected to the top of the tank 1 above the auger 321, the upper end of the auger 321 is rotatably connected to the rotating ring 322.

[0100] The outer wall of tank 1 is connected to inlet and outlet components 4;

[0101] The inlet and outlet component 4 includes a first inlet 41, which is fixedly connected to the top plate of the tank 1 above the inner cylinder 221. A second inlet 42 is fixedly connected to the upper end of the side wall of the tank 1 outside the inner cylinder 221, and an outlet 43 is fixedly connected to the lower end of the side wall of the tank 1 outside the inner cylinder 221.

[0102] When two solutions need to be mixed, one solution is fed into the inner cylinder 221 through the first feed port 41, and the other solution is fed into the tank 1 outside the inner cylinder 221 through the second feed port 42. At this time, the motor 211 is started, and the motor 211 drives the threaded rod 212 to rotate. The threaded rod 212 drives the piston plate 213 to move upward. At this time, the piston plate 213 drives the solution in the inner cylinder 221 to move upward, so that the solution in the inner cylinder 221 overflows from the upper end of the inner cylinder 221 at a uniform speed. Thus, the mixing speed of the two solutions can be controlled by simply controlling the speed of the motor 211, thereby enabling precise control of the mixing of the two solutions.

[0103] As the solution inside the inner cylinder 221 continuously overflows, the motor 211 simultaneously drives the turntable 311 to rotate. The turntable 311 drives the inner cylinder 221 to rotate, and the motor 211 drives the dispersing plate 222 to rotate. This causes the liquid inside the inner cylinder 221 to pass through the dispersing plate 222 at different overflows, thereby continuously dispersing and sprinkling the liquid inside the inner cylinder 221, which improves the mixing degree between the liquid inside the inner cylinder 221 and the liquid inside the tank 1.

[0104] As the liquid in the inner cylinder 221 is continuously dispersed and sprayed out, the turntable 311 drives the gear 312 to rotate. Under the limitation of the ring rack 313, the gear 312 continuously drives the auger 321 to rotate. The auger 321 drives the rotating ring 322 to rotate, thereby causing the auger 321 to continuously agitate the liquid in the tank 1. Furthermore, under the guidance of the dispersing plate 222, the liquid in the inner cylinder 221 is continuously dispersed above the auger 321, thus enabling the solution in the inner cylinder 221 and the solution in the tank 1 to be fully mixed.

[0105] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A high-quality MCA production process, characterized in that: Includes the following steps; S1: Add water at 90~100℃ and cyanuric acid to the mixing container and stir to dissolve; S2: Filter the solution obtained from S1 to remove impurities and set it aside for later use; S3: Add water at 90~100℃ and melamine to the mixing container and stir to dissolve; S4: Filter the solution obtained in S3 to remove impurities and set it aside for later use; S5: The solutions obtained from S2 and S3 are fed into a mixing device, and the solution obtained from S3 is uniformly mixed into the solution obtained from S2 within 20 minutes under continuous stirring; S6: Filter the product obtained in S5 to obtain a crystalline product; S7: Wash the crystalline product obtained in S6 with water at 90~100℃: S8: The product from S7 is dried to obtain the final product.

2. The high-quality MCA production process according to claim 1, characterized in that: Both cyanuric acid and melamine in S1 and S3 were completely dissolved.

3. The high-quality MCA production process according to claim 1, characterized in that: The impurities filtered out in S2 and S4 are glass shards and carbon black.

4. A production apparatus, characterized in that, Including the high-quality MCA production process as described in any one of claims 1 to 3, and the tank (1), The mixing assembly (2) located in the middle of the tank (1) includes a pusher (21) located in the middle of the tank (1) and a dispersant (22) located inside the tank (1); wherein, The pusher (21) includes a piston plate (213) disposed inside the tank (1) and a sleeve (214) disposed at the end of the piston plate (213); and, The dispersing component (22) includes an inner cylinder (221) disposed inside the tank body (1), wherein, The piston plate (213) is disposed inside the inner cylinder (221); and, A mixing component (3) is provided inside the tank (1) outside the inner cylinder (221).

5. The production apparatus according to claim 4, characterized in that: The pusher (21) also includes a motor (211). The end of the tank (1) is provided with a motor (211). The end of the motor (211) is provided with a threaded rod (212). The end of the threaded rod (212) passes through the piston plate (213) and is located inside the sleeve (214).

6. The production apparatus according to claim 5, characterized in that: The dispersing component (22) further includes a dispersing plate (222), which is disposed at the end of the inner cylinder (221).

7. The production apparatus according to claim 6, characterized in that: The mixing component (3) includes a drive member (31), the end of the inner cylinder (221) is provided with the drive member (31), and the end of the drive member (31) is provided with a stirring member (32).

8. The production apparatus according to claim 7, characterized in that: The driving component (31) includes a turntable (311), the end of the inner cylinder (221) is provided with a turntable (311), the end of the threaded rod (212) is provided on the turntable (311), the inner wall of the tank (1) is provided with an annular rack (313), and the inner side of the annular rack (313) is provided with a gear (312).

9. The production apparatus according to claim 8, characterized in that: The stirring component (32) includes an auger (321), the end of the gear (312) is provided with an auger (321), the end of the auger (321) is provided with a rotating ring (322), and the end of the rotating ring (322) is provided on the inner wall of the tank (1).

Images