An apparatus and method for preparing sodium N,N-dimethyldithiocarbonylpropane sulfonate.

Abstract

This invention relates to the field of organic synthesis technology and discloses an apparatus and method for preparing sodium N,N-dimethyldithiocarbonylpropane sulfonate, comprising a support frame, a drive motor, a drum, a distribution plate, a push rod, and a striking sleeve. When drying is required, the drive motor rotates the drum, causing the raw material to tumble. Preliminary heating is achieved through heating elements. A portion of the raw material falls onto the distribution plate and slides down to the inner wall of the extrusion chamber. During drum rotation, the position of the protrusions on the drum's sidewall changes, causing the extrusion rod to move left and right. As the extrusion rod moves to the left, it pushes the end of the extrusion plate towards the inner wall of the extrusion chamber, crushing and pulverizing the material. The combination of crushing and drying methods ensures the material reaches the required size and achieves better drying results.

Description

Technical Field

[0001] This invention belongs to the field of organic synthesis technology, specifically, it relates to an apparatus and method for preparing sodium N,N-dimethyldithiocarbonylpropane sulfonate. Background Technology

[0002] Sodium N,N-dimethyldithiocarbonylpropane sulfonate is a high-performance copper plating brightener. When used in combination with surfactants such as polyethers and wetting agents, it can produce a bright and flexible coating. High-quality sodium N,N-dimethyldithiocarbonylpropane sulfonate can be used in the production of electrolytic copper foil and also as an ink additive, especially in thermal printing inks.

[0003] In the later stages of preparing sodium N,N-dimethyldithiocarbonylpropanesulfonate, it is necessary to dry the sodium N,N-dimethyldithiocarbonylpropanesulfonate. However, during the drying process, clumping is prone to occur, which not only affects the appearance quality of the product, but also brings many inconveniences to subsequent packaging, storage, transportation and use.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0006] An apparatus for preparing sodium N,N-dimethyldithiocarbonylpropane sulfonate includes a support frame, a drive motor, a roller, a dispensing plate, a push rod, and a striking sleeve.

[0007] The drum is rotatably mounted on the side wall of the support frame, and the center of the drum rotation is connected to the output shaft of the drive motor. The inner wall of the drum has a tapered surface, and several pairs of turning plates are installed alternately on the surface of the tapered surface. A guide block is rotatably mounted on the side wall of the drum, and a through hole is opened on the guide block. The guide block is fixedly connected to the support frame.

[0008] The material distribution plate is installed on the side wall of the guide block and is placed in the inner cavity of the drum. A heating element is installed at the bottom of the material distribution plate. An extrusion cover is installed at the lowest point of the material distribution plate. An extrusion rod is movably inserted inside the extrusion cover. An extrusion plate is rotatably installed at one end of the extrusion rod and the extrusion plate is in an inclined state. A counterweight is installed at the highest point of the extrusion plate. The other end of the extrusion rod is slidably connected to a protrusion installed on the inner wall of the drum. A limit spring is installed between the extrusion rod and the extrusion cover.

[0009] The bottom of the push rod is slidably mounted on the surface of the extrusion rod, and the extrusion rod has a ramp. The push rod is slidably connected to the side wall of the distribution plate. A synchronous bracket is installed on the top of the push rod, and a baffle plate is installed on the synchronous bracket. The baffle plate moves through the distribution plate.

[0010] A striking rod is inserted into the striking sleeve, and a positioning spring is installed between the striking rod and the striking sleeve. The striking rod is placed at the bottom of the material distribution plate. The end of the striking sleeve is slidably connected to a lifting rod installed on the side wall of the barrier plate. The striking sleeve is rotatably installed below the material distribution plate, and a torsion spring is installed at the center of rotation.

[0011] In a preferred embodiment of the present invention, a base is installed at the bottom of a pair of support frames, a base platform is installed at the bottom of the base, an anti-slip pad is installed at the bottom of the base platform, and a reinforcing rib is installed on the support frame. The bottom of the reinforcing rib is connected to the base, and the reinforcing rib is triangular.

[0012] In a preferred embodiment of the present invention, the drive motor housing is installed on the side wall of the support frame, the output end of the drive motor moves through the support frame, a connecting plate is installed on the output end of the drive motor, the connecting plate is in contact with the end face of the roller, and the connecting plate and the end face of the roller are connected by bolts.

[0013] In a preferred embodiment of the present invention, the drum has a material inlet, a sealing plug is installed on the material inlet by bolts, the material inlet is connected to the inner cavity of the drum, a connecting shaft is fixedly installed at the rotation center of the guide block, and the end of the connecting shaft is connected to the side wall of the support frame.

[0014] In a preferred embodiment of the present invention, a receiving groove is provided inside the material distribution plate, and an inclined surface is provided at the bottom of the receiving groove. An outlet is installed at the bottom of the inclined surface, and the outlet is vertically aligned with the extrusion hood. An extrusion cavity is provided inside the extrusion hood, and the extrusion cavity is vertically aligned with the outlet. A guide plate is installed on the side wall of the extrusion cavity.

[0015] In a preferred embodiment of the present invention, the surface of the extrusion plate is provided with a plurality of extrusion grooves, the side wall of the extrusion cover is provided with a countersunk groove, the countersunk groove corresponds to the side wall of the extrusion rod, a ball is installed at the end of the extrusion rod, the ball is slidably connected to a protrusion, and the protrusion is installed on a connecting ring, the connecting ring is installed on the inner wall of the roller.

[0016] In a preferred embodiment of the present invention, a limiting plate is fixedly installed on the side wall of the extrusion rod, and a limiting spring is sleeved on the side wall of the extrusion rod. One end of the limiting spring is engaged with the limiting plate, and the other end of the limiting spring is engaged with the side wall of the extrusion cover.

[0017] In a preferred embodiment of the present invention, a positioning cover is installed on the side wall of the extrusion cover, the positioning cover is movably connected to the push rod, and a roller is installed at the bottom of the push rod, the roller is rotatably connected to the extrusion rod, a push plate is installed on the push rod, and a compression spring is sleeved on the push rod, one end of the compression spring is engaged with the side wall of the positioning cover, and the other end is engaged with the push plate. A limit seat is movably connected to the side wall of the push rod, and the limit seat is installed on the side wall of the material distribution plate.

[0018] In a preferred embodiment of the present invention, a baffle is slidably arranged inside the striking sleeve. One end of the baffle is connected to the striking rod, and a hammer is installed at the end of the striking rod. A positioning spring is engaged between the other end of the baffle and the inner wall of the striking sleeve. The compression direction of the positioning spring and the movement direction of the striking rod are both on the same straight line. A retaining shaft is fixedly installed on the striking sleeve, and a connecting seat is rotatably installed on the retaining shaft. The connecting seat is installed at the bottom of the material distribution plate. A torsion spring is installed on the retaining shaft, and the two ends of the torsion spring are respectively sleeved on the side wall of the striking sleeve and the side wall of the connecting seat.

[0019] This invention also discloses a method for preparing sodium N,N-dimethyldithiocarbonylpropane sulfonate using an apparatus, the steps of which are as follows:

[0020] Step 1: Mix dimethylamine, carbon disulfide, and sodium hydroxide, and then introduce them into a primary microchannel reactor to react and obtain the reactants;

[0021] Step 2: The reactants are mixed with 1,3-propanesulfonate lactone and reacted in a two-stage microchannel reactor. After the reaction is completed, the crude product is obtained.

[0022] Step 3: Purify the crude product and perform preliminary drying on the purified raw material to obtain agglomerated sodium N,N-dimethyldithiocarbonylpropanesulfonate.

[0023] Step 4: The agglomerated raw material is fed into the drum, and the drum is rotated by the drive motor, which in turn causes the raw material to flip. A portion of the raw material will fall into the distribution plate and slide down the distribution plate to the inner wall of the extrusion chamber.

[0024] Step 5: During the rotation of the drum, the position of the protrusions on the side wall of the drum changes. The protrusions drive the extrusion rod to move left and right. During the process of the extrusion rod moving to the left, the extrusion rod pushes the extrusion plate at the end to move towards the inner wall of the extrusion hood, extruding and crushing the material being held. Then, during the process of the extrusion rod resetting, the extrusion rod drives the extrusion plate to reset and separates the extrusion plate from the extrusion hood, thereby achieving the purpose of unloading the material.

[0025] Step Six: During the resetting process of the extrusion rod, the ramp on the extrusion rod drives the push rod to move upward. The push rod drives the baffle plate to move upward through the synchronous bracket, blocking the material distribution plate and ensuring that the material that has not been crushed is in a static state.

[0026] Step 7: During the upward movement of the barrier plate, the lifting rod on the barrier plate drives the striking sleeve to deflect, which in turn causes the torsion spring to store force. When the lifting rod and the striking sleeve separate, the torsion spring drives the striking sleeve to quickly reset, which in turn causes the striking rod to strike the bottom of the material distribution plate, causing the material distribution plate to vibrate and assisting the raw materials to fall.

[0027] Step 8: During the rotation of the drum, turn on the heating element and repeat steps 5, 6 and 7 to continuously dry and pulverize the raw material, finally obtaining dry sodium N,N-dimethyl dithiocarbonyl propane sulfonate powder.

[0028] Compared with the prior art, the present invention has the following advantages:

[0029] When drying is required, the drive motor rotates the drum, causing the raw material to tumble. Initial heating is achieved through heating elements. A portion of the material falls onto the distribution plate, sliding down to the inner wall of the extrusion hood. As the drum rotates, the position of the protrusions on the drum's side wall changes, causing the extrusion rod to move left and right. During the leftward movement of the extrusion rod, it pushes the end-end extrusion plate towards the inner wall of the extrusion hood, crushing the material. Then, during the extrusion rod's reset process, it resets the extrusion plate and separates it from the extrusion hood, thus achieving the purpose of material discharge. During the resetting process of the pressure bar, the ramp on the extrusion bar drives the push bar to move upward. The push bar, through the synchronous bracket, drives the baffle plate to move upward, blocking the distribution plate and preventing uncrushed material from being discharged from the extrusion hood. This ensures that all material can be crushed. During the upward movement of the baffle plate, the lifting rod on the baffle plate drives the striking sleeve to deflect, which in turn causes the torsion spring to store force. When the lifting rod and the striking sleeve separate, the torsion spring drives the striking sleeve to quickly reset, causing the striking rod to strike the bottom of the distribution plate, vibrating the distribution plate and assisting the raw material to fall. Through the cooperation of crushing and drying, the material can reach the required size and the drying effect is better.

[0030] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0031] In the attached diagram:

[0032] Figure 1 A three-dimensional diagram of an apparatus for preparing sodium N,N-dimethyldithiocarbonylpropane sulfonate;

[0033] Figure 2 A side view of an apparatus for preparing sodium N,N-dimethyldithiocarbonylpropane sulfonate;

[0034] Figure 3 A cross-section of an apparatus for preparing sodium N,N-dimethyldithiocarbonylpropane sulfonate. Figure 1 ;

[0035] Figure 4 A cross-section of an apparatus for preparing sodium N,N-dimethyldithiocarbonylpropane sulfonate. Figure 2 ;

[0036] Figure 5 A bottom view of the feed plate of an apparatus for preparing sodium N,N-dimethyldithiocarbonylpropane sulfonate;

[0037] Figure 6 A cross-sectional view of the striking sleeve of an apparatus for preparing sodium N,N-dimethyldithiocarbonylpropanesulfonate;

[0038] Figure 7 A cross-sectional view of the extrusion shroud of an apparatus for preparing sodium N,N-dimethyldithiocarbonylpropane sulfonate.

[0039] Figure 8 A three-dimensional view of a drum in an apparatus for preparing sodium N,N-dimethyldithiocarbonylpropane sulfonate.

[0040] In the picture:

[0041] 1. Support frame; 11. Base; 111. Abutment; 112. Reinforcing rib;

[0042] 2. Drive motor; 21. Connecting plate;

[0043] 3. Roller; 31. Feed inlet; 311. Sealing plug; 32. Guide block; 321. Through hole; 322. Connecting shaft; 33. Conical surface; 331. Flipping plate;

[0044] 4. Material distribution plate; 41. Inclined surface; 411. Outlet; 42. Heating element; 43. Extrusion cover; 431. Extrusion cavity; 432. Guide plate; 44. Extrusion plate; 441. Extrusion rod; 442. Countersunk groove; 443. Limiting plate; 444. Limiting spring; 445. Ball bearing; 446. Connecting ring; 447. Protrusion; 448. Counterweight;

[0045] 5. Push rod; 51. Positioning cover; 511. Push plate; 512. Compression spring; 513. Roller; 514. Ramp; 515. Limit seat; 52. Synchronization bracket; 521. Barrier plate;

[0046] 6. Striking sleeve; 61. Striking rod; 611. Hammer head; 612. Baffle; 613. Positioning spring; 62. Snap pin; 621. Torsion spring; 622. Connecting seat; 63. Lifting rod. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention. Example 1

[0048] like Figures 1 to 8As shown, an apparatus for preparing sodium N,N-dimethyldithiocarbonylpropane sulfonate includes a support frame 1, a drive motor 2, a roller 3, a dispensing plate 4, a push rod 5, and a striking sleeve 6.

[0049] The roller 3 is rotatably mounted on the side wall of the support frame 1, and the rotation center of the roller 3 is connected to the output shaft of the drive motor 2. The inner wall of the roller 3 is provided with a conical surface 33, and several pairs of turning plates 331 are alternately installed on the surface of the conical surface 33. A guide block 32 is rotatably mounted on the side wall of the roller 3, and a through hole 321 is provided on the guide block 32. The guide block 32 is fixedly connected to the support frame 1.

[0050] The material distribution plate 4 is installed on the side wall of the guide block 32 and is placed in the inner cavity of the roller 3. A heating element 42 is installed at the bottom of the material distribution plate 4. An extrusion cover 43 is installed at the lowest point of the material distribution plate 4. An extrusion rod 441 is movably inserted inside the extrusion cover 43. An extrusion plate 44 is rotatably installed at one end of the extrusion rod 441 and the extrusion plate 44 is in an inclined state. A counterweight block 448 is installed at the highest point of the extrusion plate 44. The other end of the extrusion rod 441 is slidably connected to a protrusion 447 installed on the inner wall of the roller 3. A limit spring 444 is engaged between the extrusion rod 441 and the extrusion cover 43.

[0051] The bottom of the push rod 5 is slidably disposed on the surface of the extrusion rod 441, and the extrusion rod 441 is provided with a ramp 514. The push rod 5 is slidably connected to the side wall of the material distribution plate 4. A synchronous bracket 52 is installed on the top of the push rod 5, and a baffle plate 521 is installed on the synchronous bracket 52. The baffle plate 521 movably passes through the material distribution plate 4.

[0052] A striking rod 61 is inserted into the striking sleeve 6, and a positioning spring 613 is installed between the striking rod 61 and the striking sleeve 6. The striking rod 61 is placed at the bottom of the material distribution plate 4. The end of the striking sleeve 6 is slidably connected to the lifting rod 63 installed on the side wall of the barrier plate 521. The striking sleeve 6 is rotatably installed below the material distribution plate 4, and a torsion spring 621 is provided at the center of rotation.

[0053] When drying is required, the drive motor 2 drives the drum 3 to rotate, which in turn causes the raw material to tumble. The heating element 42 provides initial heating, and a portion of the raw material falls into the distribution plate 4. The material slides down the distribution plate 4 onto the inner wall of the extrusion shroud 43. As the drum 3 rotates, the position of the protrusion 447 on the side wall of the drum 3 changes, causing the extrusion rod 441 to move left and right. During the leftward movement of the extrusion rod 441, it pushes the end extrusion plate 44 towards the inner wall of the extrusion shroud 43, crushing the material. Then, during the resetting process of the extrusion rod 441, it resets the extrusion plate 44 and separates it from the extrusion shroud 43, thus achieving the purpose of material discharge. During the reset process, the ramp 514 on the extrusion rod 441 drives the push rod 5 to move upward. The push rod 5, through the synchronous bracket 52, drives the baffle plate 521 to move upward, blocking the distribution plate 4 and preventing uncrushed material from being discharged downward from the extrusion cover 43, ensuring that all material can be crushed. During the upward movement of the baffle plate 521, the lifting rod 63 on the baffle plate 521 drives the striking sleeve 6 to deflect, thereby causing the torsion spring 621 to store force. When the lifting rod 63 and the striking sleeve 6 separate, the torsion spring 621 drives the striking sleeve 6 to quickly reset, thereby causing the striking rod 61 to hammer the bottom of the distribution plate 4, vibrating the distribution plate 4 and assisting the raw material to fall. This invention, through the mutual cooperation of crushing and drying, can make the material reach the required size requirements, and the drying effect is better and the drying efficiency is higher.

[0054] like Figures 1 to 8 As shown, in a specific embodiment, a base 11 is installed at the bottom of a pair of support frames 1, which provides support. A base platform 111 is installed at the bottom of the base 11, and an anti-slip pad is installed at the bottom of the base platform 111. A reinforcing rib 112 is installed on the support frame 1, and the bottom of the reinforcing rib 112 is connected to the base 11. The reinforcing rib 112 is triangular, and the reinforcing rib 112 improves the overall stability of the equipment.

[0055] like Figures 1 to 8 As shown, furthermore, the housing of the drive motor 2 is mounted on the side wall of the support frame 1, and the output end of the drive motor 2 movably passes through the support frame 1. A connecting plate 21 is installed at the output end of the drive motor 2, and the connecting plate 21 is in contact with the end face of the roller 3. The connecting plate 21 and the end face of the roller 3 are connected by bolts. The drive motor 2 can drive the entire roller 3 to rotate through the connecting plate 21. Example 2

[0056] The difference between the above embodiments and this embodiment is that: Figures 1 to 8As shown, the roller 3 has a material inlet 31, and a sealing plug 311 is installed on the material inlet 31 by bolts. The material inlet 31 is connected to the inner cavity of the roller 3. The above structure mainly ensures that the operator can smoothly feed materials into the roller 3. A connecting shaft 322 is fixedly installed at the rotation center of the guide block 32. The end of the connecting shaft 322 is connected to the side wall of the support frame 1.

[0057] like Figures 1 to 8 As shown, in a specific embodiment, the material distribution plate 4 has a receiving groove inside, and the bottom of the receiving groove has an inclined surface 41. An outlet 411 is installed at the bottom of the inclined surface 41, and the outlet 411 is vertically aligned with the extrusion cover 43. An extrusion cavity 431 is opened inside the extrusion cover 43, and the extrusion cavity 431 is vertically aligned with the outlet 411. A guide plate 432 is installed on the side wall of the extrusion cavity 431. The material falling onto the material distribution plate 4 can slide through the inclined surface 41 to the surface of the outlet 411, and the material is input into the side wall of the extrusion plate 44 of the extrusion cavity 431 through the outlet 411.

[0058] like Figures 1 to 8 As shown, furthermore, the surface of the extrusion plate 44 is provided with several pairs of extrusion grooves, and the side wall of the extrusion cover 43 is provided with a countersunk groove 442, which corresponds to the side wall of the extrusion rod 441. A ball 445 is installed at the end of the extrusion rod 441, and the ball 445 is slidably connected to the protrusion 447. The protrusion 447 is installed on the connecting ring 446, which is installed on the inner wall of the roller 3. A limit plate 443 is fixedly installed on the side wall of the extrusion rod 441, and a limit spring 444 is sleeved on the side wall of the extrusion rod 441. One end of the limit spring 444 is engaged with the limit plate 443, and the other end of the limit spring 444 is engaged with the side wall of the extrusion cover 43. During the rotation of the roller 3, the position of the protrusion 447 on the side wall of the roller 3 changes, and the ball 445 on the extrusion rod 441 can slide on the protrusion 447, thereby driving the extrusion rod 441 to move left and right. When the extrusion rod 441 moves to the left, Figure 7 Based on this, as the extrusion rod 441 moves to the left, it pushes the end extrusion plate 44 towards the inner wall of the extrusion cover 43, extruding and crushing the material being held. The extrusion rod 441 resets via a compressed limiting spring 444. The limiting spring 444 ensures that the ball 445 and the protrusion 447 at the end of the extrusion rod 441 are tightly fitted together. Therefore, when the extrusion rod 441 resets, it drives the extrusion plate 44 to reset as well. One end of the extrusion plate 44 is in contact with the side wall, and at this time, the extrusion plate 44 rotates, causing the other end of the extrusion plate 44 to separate from the extrusion cover 43, thus achieving the purpose of material discharge. Example 3

[0059] The difference between the above embodiments and this embodiment is that: Figures 1 to 8As shown, a positioning cover 51 is installed on the side wall of the extrusion cover 43. The positioning cover 51 is movably connected to the push rod 5, and a roller 513 is installed at the bottom of the push rod 5. The roller 513 is rotatably connected to the extrusion rod 441. A push plate 511 is installed on the push rod 5, and a compression spring 512 is sleeved on the push rod 5. One end of the compression spring 512 is engaged with the side wall of the positioning cover 51, and the other end is engaged with the push plate 511. A limit seat 515 is movably connected to the side wall of the push rod 5, and the limit seat 515 is installed on the side wall of the material distribution plate 4. During the resetting process of the extrusion rod 441, the ramp 514 on the extrusion rod 441 also moves synchronously to the right. The ramp 514 can drive the push rod 5 to move upward. The roller 513 at the bottom of the push rod 5 plays a guiding role. At this time, the push rod 5 slides upward along the positioning cover 51. The push rod 5 drives the push plate 511 to move upward. The push plate 511 compresses the compression spring 512. The compression spring 512 facilitates the subsequent resetting. The push rod 5 can also slide inside the limit seat 515, which plays the purpose of limiting and guiding. Finally, the synchronous bracket 52 can drive the barrier plate 521 to move upward and block the material distribution plate 4.

[0060] like Figures 1 to 8 As shown, further, a baffle 612 is slidably arranged inside the striking sleeve 6. One end of the baffle 612 is connected to the striking rod 61. A hammer head 611 is installed at the end of the striking rod 61. A positioning spring 613 is engaged between the other end of the baffle 612 and the inner wall of the striking sleeve 6. The compression direction of the positioning spring 613 and the movement direction of the striking rod 61 are both on the same straight line. A retaining shaft 62 is fixedly installed on the striking sleeve 6. A connecting seat 622 is rotatably installed on the retaining shaft 62. The connecting seat 622 is installed at the bottom of the material distribution plate 4. A torsion spring 621 is installed on the retaining shaft 62. The two ends of the torsion spring 621 are respectively sleeved on the side wall of the striking sleeve 6 and the side wall of the connecting seat 622. During the upward movement of the baffle plate 521, the lifting rod 63 on the baffle plate 521 causes the striking sleeve 6 to deflect. At this time, the striking sleeve 6 rotates on the connecting seat 622, which can further cause the torsion spring 621 to store force. When the lifting rod 63 and the striking sleeve 6 separate (i.e., when the lifting rod 63 moves above the striking sleeve 6), the torsion spring 621 causes the striking sleeve 6 to quickly return to its original position, which in turn causes the striking rod 61 to strike the bottom of the distribution plate 4, causing the distribution plate 4 to vibrate and assisting the raw materials to fall. When the baffle plate 521 returns to its original position downward, the lifting rod 63 on the baffle plate 521 presses the bottom striking sleeve 6. At this time, the striking sleeve 6 rotates, and the striking rod 61 can slide inside the striking sleeve 6 to ensure that the striking sleeve 6 can rotate normally until the lifting rod 63 moves below the striking sleeve 6. At this time, the torsion spring 621 causes the striking sleeve 6 to return to its original position, and the positioning spring 613 causes the striking rod 61 to return to its original position.

[0061] This invention also discloses a method for preparing sodium N,N-dimethyldithiocarbonylpropane sulfonate using an apparatus, the steps of which are as follows:

[0062] Step 1: Mix dimethylamine, carbon disulfide, and sodium hydroxide, and then introduce them into a primary microchannel reactor to react and obtain the reactants;

[0063] Step 2: The reactants are mixed with 1,3-propanesulfonate lactone and reacted in a two-stage microchannel reactor. After the reaction is completed, the crude product is obtained.

[0064] Step 3: Purify the crude product and perform preliminary drying on the purified raw material to obtain agglomerated sodium N,N-dimethyldithiocarbonylpropanesulfonate.

[0065] Step 4: The agglomerated raw material is fed into the roller 3, and the roller 3 is rotated by the drive motor 2, which in turn causes the raw material to flip. A portion of the raw material will fall into the distribution plate 4, and the raw material will slide down the distribution plate 4 to the inner wall of the extrusion cover 43.

[0066] Step 5: As the drum 3 rotates, the position of the protrusion 447 on the side wall of the drum 3 changes. The protrusion 447 drives the extrusion rod 441 to move left and right. During the process of the extrusion rod 441 moving to the left, the extrusion rod 441 pushes the end extrusion plate 44 to move towards the inner wall of the extrusion cover 43, extruding and crushing the material being held. Then, during the process of the extrusion rod 441 resetting, the extrusion rod 441 drives the extrusion plate 44 to reset and separates the extrusion plate 44 from the extrusion cover 43, thereby achieving the purpose of unloading the material.

[0067] Step 6: During the resetting process of the extrusion rod 441, the ramp 514 on the extrusion rod 441 drives the push rod 5 to move upward. The push rod 5 drives the baffle plate 521 to move upward through the synchronous bracket 52, blocking the material distribution plate 4 and ensuring that the material that has not been crushed is in a static state.

[0068] Step 7: During the upward movement of the baffle plate 521, the lifting rod 63 on the baffle plate 521 drives the striking sleeve 6 to deflect, which in turn causes the torsion spring 621 to store force. When the lifting rod 63 and the striking sleeve 6 separate, the torsion spring 621 drives the striking sleeve 6 to quickly reset, which in turn causes the striking rod 61 to hammer the bottom of the material distribution plate 4, causing the material distribution plate 4 to vibrate and assisting the raw materials to fall.

[0069] Step 8: While the drum 3 is rotating, turn on the heating element 42 and repeat steps 5, 6 and 7 to continuously dry and pulverize the raw material, finally obtaining dry sodium N,N-dimethyl dithiocarbonyl propane sulfonate powder.

[0070] The implementation principle of the apparatus and method for preparing sodium N,N-dimethyldithiocarbonylpropane sulfonate in this embodiment is as follows:

[0071] Dimethylamine, carbon disulfide, and sodium hydroxide were mixed and then reacted in a primary microchannel reactor to obtain a reactant. The reactant was then mixed with 1,3-propanesulfonate lactone and reacted in a secondary microchannel reactor. After the reaction was completed, a crude product was obtained. The crude product was purified, and the purified raw material was preliminarily dried to obtain agglomerated sodium N,N-dimethyldithiocarbonylpropanesulfonate.

[0072] The operator then feeds the clumped raw material into the drum 3. At this point, the drive motor 2 and heating element 42 need to be started. The drive motor 2 drives the entire drum 3 to rotate via the connecting plate 21. The drum 3 drives the tilting plate 331 to rotate synchronously, which in turn causes the material to rotate synchronously. When the material rotates to a high position, it can slide off the tilting plate 331. Eventually, some of the material can slide onto the distribution plate 4. When the tilting plate 331 rotates, the material inside is simultaneously broken up. At this time, the heating element 42 accelerates the drying process. Due to the conical surface 33 on the drum 3, the material can be ensured to slide down to the lowest point of the conical surface 33. The material moved by the tilting plate 331 can then fall to the initial end of the distribution plate 4, ensuring that the material can move on the distribution plate 4 for a longer time, thus increasing the drying time and making the drying more thorough.

[0073] The material falling onto the distribution plate 4 can slide onto the surface of the outlet 411 through the inclined surface 41, and then be fed into the side wall of the extrusion plate 44 of the extrusion cavity 431 through the outlet 411.

[0074] During the rotation of roller 3, the position of the protrusion 447 on the side wall of roller 3 changes, and the ball 445 on the extrusion rod 441 can slide on the protrusion 447, thereby driving the extrusion rod 441 to move left and right. When the extrusion rod 441 moves to the left, Figure 7 Based on.

[0075] As the extrusion rod 441 moves to the left, it pushes the extrusion plate 44 at its end towards the inner wall of the extrusion cover 43, thus extruding and crushing the material being held. The extrusion rod 441 resets via a compressed limiting spring 444. This spring ensures that the ball 445 at the end of the extrusion rod 441 and the protrusion 447 are tightly fitted together. Therefore, when the extrusion rod 441 resets, it also resets the extrusion plate 44, with one end of the extrusion plate 44 fitting against the side wall. This causes the extrusion plate 44 to rotate, separating the other end from the extrusion cover 43, thus achieving the purpose of material discharge.

[0076] During the resetting process of the extrusion rod 441, the ramp 514 on the extrusion rod 441 also moves synchronously to the right. This ramp 514 then drives the push rod 5 upwards. The roller 513 at the bottom of the push rod 5 acts as a guide. At this time, the push rod 5 slides upwards along the positioning cover 51. The push rod 5 drives the push plate 511 upwards, and the push plate 511 compresses the compression spring 512. The compression spring 512 facilitates subsequent resetting. The push rod 5 can also slide inside the limiting seat 515, serving as a limiting and guiding mechanism. Ultimately, this allows the synchronous bracket 52 to drive the blocking plate 521 upwards, blocking the material distribution plate 4. At this time, the raw material inside the material distribution plate 4 is blocked, ensuring that uncrushed material is not discharged along the extrusion cover 43 during the material discharge process.

[0077] During the upward movement of the baffle plate 521, the lifting rod 63 on the baffle plate 521 causes the striking sleeve 6 to deflect. At this time, the striking sleeve 6 rotates on the connecting seat 622, which in turn causes the torsion spring 621 to store force. When the lifting rod 63 and the striking sleeve 6 separate (i.e., when the lifting rod 63 moves above the striking sleeve 6), the torsion spring 621 causes the striking sleeve 6 to quickly return to its original position, which in turn causes the striking rod 61 to strike the bottom of the distribution plate 4, causing the distribution plate 4 to vibrate and assisting the raw materials to fall. When the baffle plate 521 returns to its original position downward, the lifting rod 63 on the baffle plate 521 presses the bottom striking sleeve 6, causing the striking sleeve 6 to rotate. The striking rod 61 can slide inside the striking sleeve 6 to ensure that the striking sleeve 6 can rotate normally until the lifting rod 63 moves below the striking sleeve 6. At this time, the torsion spring 621 causes the striking sleeve 6 to return to its original position, and the positioning spring 613 causes the striking rod 61 to return to its original position.

[0078] By continuously rotating the drum 3, the raw material can be continuously dried and pulverized, and finally dry sodium N,N-dimethyl dithiocarbonyl propane sulfonate powder can be obtained.

Claims

1. An apparatus for preparing sodium N,N-dimethyldithiocarbonylpropane sulfonate, characterized in that, include: A pair of symmetrically distributed support frames (1); Drive motor (2); A roller (3) is rotatably mounted on the side wall of the support frame (1), and the rotation center of the roller (3) is connected to the output shaft of the drive motor (2). A tapered surface (33) is provided on the inner wall of the roller (3), and several pairs of flipping plates (331) are alternately installed on the surface of the tapered surface (33). A guide block (32) is rotatably mounted on the side wall of the roller (3), and a through hole (321) is provided on the guide block (32). The guide block (32) is fixedly connected to the support frame (1). The material distribution plate (4) is installed on the side wall of the guide block (32) and placed in the inner cavity of the roller (3). A heating element (42) is installed at the bottom of the material distribution plate (4). An extrusion cover (43) is installed at the lowest point of the material distribution plate (4). An extrusion rod (441) is movably inserted inside the extrusion cover (43). An extrusion plate (44) is rotatably installed at one end of the extrusion rod (441), and the extrusion plate (44) is in an inclined state. A counterweight (448) is installed at the highest point of the extrusion plate (44). The other end of the extrusion rod (441) is slidably connected to a protrusion (447) installed on the inner wall of the roller (3). A limit spring (444) is snapped between the extrusion rod (441) and the extrusion cover (43). The material distribution plate (4) has a receiving groove inside, and a slope (41) is provided at the bottom of the receiving groove. An outlet (411) is installed at the bottom of the slope (41). The outlet (411) is vertically aligned with the extrusion cover (43). An extrusion cavity (431) is provided inside the extrusion cover (43). The extrusion cavity (431) is vertically aligned with the outlet (411). A guide plate (432) is installed on the side wall of the extrusion cavity (431). The surface of the extrusion plate (44) is provided with several pairs of extrusion grooves, and the side wall of the extrusion cover (43) is provided with a countersunk groove (442). The countersunk groove (442) corresponds to the side wall of the extrusion rod (441). A ball (445) is installed at the end of the extrusion rod (441). The ball (445) is slidably connected to a protrusion (447), and the protrusion (447) is installed on a connecting ring (446). The connecting ring (446) is installed on the inner wall of the roller (3). A limiting plate (443) is fixedly installed on the side wall of the extrusion rod (441), and a limiting spring (444) is sleeved on the side wall of the extrusion rod (441). One end of the limiting spring (444) is clamped on the limiting plate (443), and the other end of the limiting spring (444) is clamped on the side wall of the extrusion cover (43). Push rod (5), the bottom of push rod (5) is slidably disposed on the surface of extrusion rod (441), and the extrusion rod (441) is provided with a ramp (514). Push rod (5) is slidably connected to the side wall of distribution plate (4). Synchronous bracket (52) is installed on the top of push rod (5). A baffle plate (521) is installed on the synchronous bracket (52). The baffle plate (521) movably penetrates the distribution plate (4). A striking sleeve (6) is provided with a striking rod (61) inserted into it, and a positioning spring (613) is installed between the striking rod (61) and the striking sleeve (6). The striking rod (61) is placed at the bottom of the material distribution plate (4). The end of the striking sleeve (6) is slidably connected to a lifting rod (63) installed on the side wall of the barrier plate (521). The striking sleeve (6) is rotatably installed below the material distribution plate (4), and a torsion spring (621) is provided at the center of rotation.

2. The apparatus for preparing sodium N,N-dimethyldithiocarbonylpropane sulfonate according to claim 1, characterized in that, A base (11) is installed at the bottom of a pair of support frames (1), a base platform (111) is installed at the bottom of the base (11), an anti-slip pad is installed at the bottom of the base platform (111), a reinforcing rib (112) is installed on the support frame (1), the bottom of the reinforcing rib (112) is connected to the base (11), and the reinforcing rib (112) is triangular.

3. The apparatus for preparing sodium N,N-dimethyldithiocarbonylpropane sulfonate according to claim 2, characterized in that, The outer casing of the drive motor (2) is installed on the side wall of the support frame (1). The output end of the drive motor (2) moves through the support frame (1). A connecting plate (21) is installed on the output end of the drive motor (2). The connecting plate (21) is in contact with the end face of the roller (3). The connecting plate (21) and the end face of the roller (3) are connected by bolts.

4. The apparatus for preparing sodium N,N-dimethyldithiocarbonylpropane sulfonate according to claim 3, characterized in that, The roller (3) has a material inlet (31), and a sealing plug (311) is installed on the material inlet (31) by bolts. The material inlet (31) is connected to the inner cavity of the roller (3). A connecting shaft (322) is fixedly installed at the rotation center of the guide block (32), and the end of the connecting shaft (322) is connected to the side wall of the support frame (1).

5. The apparatus for preparing sodium N,N-dimethyldithiocarbonylpropane sulfonate according to claim 4, characterized in that, A positioning cover (51) is installed on the side wall of the extrusion cover (43). The positioning cover (51) is movably connected to the push rod (5). A roller (513) is installed at the bottom of the push rod (5). The roller (513) is rotatably connected to the extrusion rod (441). A push plate (511) is installed on the push rod (5). A compression spring (512) is sleeved on the push rod (5). One end of the compression spring (512) is clamped to the side wall of the positioning cover (51), and the other end is clamped to the push plate (511). A limit seat (515) is movably connected to the side wall of the push rod (5). The limit seat (515) is installed on the side wall of the material distribution plate (4).

6. The apparatus for preparing sodium N,N-dimethyldithiocarbonylpropane sulfonate according to claim 5, characterized in that, A baffle (612) is slidably arranged inside the striking sleeve (6). One end of the baffle (612) is connected to the striking rod (61). A hammer (611) is installed at the end of the striking rod (61). A positioning spring (613) is snapped between the other end of the baffle (612) and the inner wall of the striking sleeve (6). The compression direction of the positioning spring (613) and the movement direction of the striking rod (61) are on the same straight line. A retaining shaft (62) is fixedly installed on the striking sleeve (6). A connecting seat (622) is rotatably installed on the retaining shaft (62). The connecting seat (622) is installed at the bottom of the material distribution plate (4). A torsion spring (621) is installed on the retaining shaft (62). The two ends of the torsion spring (621) are respectively sleeved on the side wall of the striking sleeve (6) and the side wall of the connecting seat (622).

7. A method for preparing sodium N,N-dimethyldithiocarbonylpropane sulfonate, characterized in that, The apparatus for preparing sodium N,N-dimethyldithiocarbonylpropane sulfonate according to claim 6, and the method for preparing sodium N,N-dimethyldithiocarbonylpropane sulfonate using the apparatus, comprises the following steps: Step 1: Mix dimethylamine, carbon disulfide, and sodium hydroxide, and then introduce them into a primary microchannel reactor to react and obtain the reactants; Step 2: The reactants are mixed with 1,3-propanesulfonate lactone and reacted in a two-stage microchannel reactor. After the reaction is completed, the crude product is obtained. Step 3: Purify the crude product and perform preliminary drying on the purified raw material to obtain agglomerated sodium N,N-dimethyldithiocarbonylpropanesulfonate. Step 4: The agglomerated raw material is put into the drum (3), and the drum (3) is rotated by the drive motor (2), which in turn causes the raw material to flip. A portion of the raw material will fall into the distribution plate (4), and the raw material slides down the distribution plate (4) to the inner wall of the extrusion cover (43). Step 5: During the rotation of the drum (3), the position of the protrusion (447) on the side wall of the drum (3) changes. The protrusion (447) drives the extrusion rod (441) to move left and right. During the process of the extrusion rod (441) moving to the left, the extrusion rod (441) pushes the end extrusion plate (44) to move towards the inner wall of the extrusion cover (43) to extrude and crush the material being held. Then, during the process of the extrusion rod (441) resetting, the extrusion rod (441) drives the extrusion plate (44) to reset and separates the extrusion plate (44) from the extrusion cover (43), thereby achieving the purpose of feeding the material. Step 6: During the resetting process of the extrusion rod (441), the ramp (514) on the extrusion rod (441) drives the push rod (5) to move upward. The push rod (5) drives the baffle plate (521) to move upward through the synchronous bracket (52), blocking the material distribution plate (4) and ensuring that the material that has not been crushed is in a static state. Step 7: During the upward movement of the baffle plate (521), the lifting rod (63) on the baffle plate (521) drives the striking sleeve (6) to deflect, thereby causing the torsion spring (621) to store force. When the lifting rod (63) and the striking sleeve (6) separate, the torsion spring (621) drives the striking sleeve (6) to quickly reset, thereby causing the striking rod (61) to hammer the bottom of the material distribution plate (4), causing the material distribution plate (4) to vibrate and assisting the raw materials to fall. Step 8: During the rotation of the drum (3), turn on the heating plate (42) and repeat steps 5, 6 and 7 to continuously dry and pulverize the raw material, and finally obtain dry sodium N,N-dimethyl dithiocarbonyl propane sulfonate powder.

Images