A kind of cysteamine hydrochloride preparation equipment and method

Abstract

The invention discloses a cysteamine hydrochloride preparation device and method, belonging to the field of cysteamine hydrochloride preparation. The cysteamine hydrochloride preparation device and method comprise a reaction box, a reaction mechanism for mixing liquids, the reaction mechanism being arranged inside the reaction box; a condenser for cooling the mixed liquid, the condenser being installed outside the reaction mechanism; a recovery device for recovering carbon disulfide gas, the recovery device being arranged on the right side of the reaction box, the reaction mechanism consisting of a liquid injection pipe and a liquid suction pipe, and can realize injecting hydrochloric acid into the liquid injection pipe at a certain flow rate, the flow rate in the liquid injection pipe is large and the pressure is small, the original liquid in the liquid suction pipe will flow into the liquid injection pipe and be mixed with the hydrochloric acid, the liquid suction pipe realizes extracting the original liquid in the reaction box, the original liquid and the hydrochloric acid are mixed little by little, the heat generated just after mixing is cooled by the condenser, thereby avoiding the accumulation of heat.

Description

Technical Field

[0001] The invention relates to the field of cysteamine hydrochloride preparation, and more specifically to a cysteamine hydrochloride preparation device and method. Background Art

[0002] Cysteamine hydrochloride is an organic compound. Cysteamine hydrochloride is an essential substance with physiological effects and widely present in nature. It is a carbohydrate used by various tissue cells in animals and plants to defend against harmful substances and improve vitality. It can be used as a bread fermentation accelerator and preservative.

[0003] The general process for preparing cysteamine hydrochloride is as follows: step 1, first adding carbon disulfide to an aqueous sodium sulfide solution dissolved in alcohol and reacting, step 2, then adding an aqueous solution of chloroethylamine hydrochloride to the solution after the reaction in step 1, step 3, adding hydrochloric acid to the solution in step 2 and reacting completely, step 4, evaporating and filtering the liquid after the reaction in step 3, thereby obtaining a crude solution of cysteamine hydrochloride, which is then purified.

[0004] When adding liquid, it is generally added slowly to the liquid in the container to avoid violent reactions between the liquids and the generation of a large amount of heat and gas. Because the entire system is at risk of high temperature and high pressure, it is prone to explosion and cause harm. When preparing cysteamine hydrochloride, the liquids are added slowly to avoid high temperature and high pressure, which greatly reduces the preparation efficiency of cysteamine hydrochloride.

[0005] Therefore, a cysteamine hydrochloride preparation device and method are proposed. Summary of the invention

[0006] 1. Technical issues to be solved

[0007] In view of the problems existing in the prior art, the object of the present invention is to provide a cysteamine hydrochloride preparation device and method, which can realize the little by little reaction of liquid and liquid in a container, and the heat generated by each reaction will be cooled down in time, thereby avoiding the generation of a large amount of heat, thereby improving the preparation efficiency of cysteamine hydrochloride.

[0008] 2. Technical solution

[0009] To solve the above problems, the present invention adopts the following technical solutions.

[0010] A cysteamine hydrochloride preparation device and method, comprising a reaction box,

[0011] A reaction mechanism, used for mixing liquids, and the reaction mechanism is arranged inside the reaction box;

[0012] A condenser, used to cool the mixed liquid, wherein the condenser is installed outside the reaction mechanism;

[0013] The recovery device is used for recovering carbon disulfide gas, and the recovery device is arranged on the right side of the reaction box.

[0014] Furthermore, the reaction mechanism consists of an injection pipe and a liquid suction pipe, the liquid suction pipe is installed below the injection pipe, and the two are connected, the outer cylindrical surface of the injection pipe is fixedly connected to a condenser, the outer cylindrical surface of the condenser is installed with a first water injection pipe near one end, and the outer cylindrical surface of the condenser is installed with a first drainage pipe near the other end.

[0015] Furthermore, the recovery device includes a connecting box, a collecting box, a guide pipe, a liquid receiving box, a connecting column, a condensing cylinder, a spiral pipe, a second water injection pipe, and a second drainage pipe;

[0016] The right side of the reaction box is fixedly connected to a connecting box, one end of the injection tube extends to the interior of the connecting box, a condensing cylinder is fixedly installed on the upper end of the connecting box, a spiral tube is arranged inside the condensing cylinder, both upper and lower ends of the spiral tube are connected to the outside, a second water injection tube is fixedly installed on the outer circular surface of the condensing cylinder near the lower end, a second drainage pipe is fixedly installed on the outer circular surface of the condensing cylinder near the upper end, the lower surface of the condensing cylinder is fixedly connected with evenly distributed connecting columns near the connection point of the spiral tube, the lower end of the connecting column is fixedly connected with a liquid receiving box, the lower end of the liquid receiving box is equipped with a guide tube, the right outer surface of the connecting box is fixedly connected to a collecting box, the lower end of the guide tube passes through the connecting box and extends to the interior of the collecting box.

[0017] Furthermore, both upper and lower ends of the spiral tube are fixedly connected with elastic tubes, the elastic tube is fixedly connected to the condensing cylinder, and the inner bottom of the condensing cylinder is rotatably connected with a paddle corresponding to the pipe mouth position of the second water injection pipe.

[0018] Furthermore, a connecting port is provided at the lower ends of the reaction box and the connecting box, the inner bottoms of the reaction box and the connecting box are both inclined, and a drainage port is provided on the outer surface of the reaction box near the lower end.

[0019] Furthermore, the inner wall of the connecting box is fixedly connected with a guide plate, the inner wall of the connecting box is fixedly connected with a transverse plate below the guide plate, and the interior of the transverse plate is penetrated by evenly distributed liquid permeable holes.

[0020] Furthermore, evenly distributed diverter blocks are fixedly connected to the inside of the liquid injection tube, and flow collectors are arranged between the diverter blocks, and the flow collectors are fixedly connected to the inner wall of the liquid injection tube.

[0021] Furthermore, a barrier ring is fixedly connected to the inner wall of the pipette, a lifting plate is provided inside the pipette below the barrier ring, a liquid flow hole is penetrated through the inner center of the lifting plate, a receiving plate is provided below the lifting plate, support rods are fixedly connected to the left and right sides of the receiving plate, and one end of the support rod is fixedly connected to the inner wall of the pipette.

[0022] Furthermore, evenly distributed heat conducting plates are provided throughout the interior of the condenser tube, and one end of the heat conducting plate is fixedly connected to the outer wall of the liquid injection tube.

[0023] A method for preparing cysteamine hydrochloride comprises the following steps:

[0024] S1: Mixing and releasing heat: Hydrochloric acid is injected into the injection tube at a certain flow rate. The flow rate in the injection tube is large and the pressure is small. The original liquid in the pipette will flow into the injection tube and mix with the hydrochloric acid. The pipette extracts the original liquid in the reaction box. The original liquid and hydrochloric acid are mixed little by little. The heat generated just after mixing is cooled by the condenser:

[0025] S2: Accelerate mixing: The mixed liquid flows inside the injection tube and is divided into two paths when passing through the diverter block. When passing through the manifold, the two mixed liquids impact each other and mix together, thereby promoting the full mixing of hydrochloric acid and the original liquid, and the mixed liquid continues to flow forward;

[0026] S3: Avoid mixing: When the mixed liquid is discharged from the injection tube, it will impact the guide plate, and the liquid will flow into the connecting box along the guide plate. As the liquid is gradually injected, the mixed liquid will move downward through the liquid permeable hole. At the same time, the original liquid at the bottom of the connecting box flows into the reaction box through the connecting port, so that the pipette can always extract the original liquid, avoiding mixing of the mixed liquid and the original liquid;

[0027] S4: Condensation recovery: The carbon disulfide in the mixed liquid will volatilize and move upward along the inside of the connecting box into the spiral tube. After condensation in the condensation cylinder, the liquid carbon disulfide flows downward along the spiral tube and drips into the liquid receiving box, and flows into the collection box along the guide pipe.

[0028] 3. Beneficial effects

[0029] Compared with the prior art, the advantages of the present invention are:

[0030] In this solution, hydrochloric acid is injected into the injection tube at a certain flow rate. The flow rate in the injection tube is large and the pressure is small. The stock liquid in the pipette will flow into the injection tube and mix with the hydrochloric acid. The pipette is used to extract the stock liquid in the reaction box. The stock liquid and the hydrochloric acid are mixed little by little. The heat generated just after mixing is cooled by the condenser, thereby avoiding heat accumulation. Compared with the traditional preparation of cysteamine hydrochloride, when the liquids need to be slowly added, the mixing speed of the present invention will be faster, thereby improving the preparation efficiency of cysteamine hydrochloride and avoiding the problem of high temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a three-dimensional view of the overall structure of the present invention;

[0032] Figure 2 It is a cross-sectional view of the overall structure of the present invention;

[0033] Figure 3 A three-dimensional view of the liquid receiving box and the connecting components of the present invention;

[0034] Figure 4 is a three-dimensional view of a blade of the present invention;

[0035] Figure 5 For the present invention Figure 2 Magnified view at A in the middle;

[0036] Figure 6 For the present invention Figure 2 Magnified view at B in the middle;

[0037] Figure 7 A diagram showing the internal components of the pipette of the present invention;

[0038] Figure 8 It is a cross-sectional view of the condenser of the present invention.

[0039] Description of the numbers in the figure:

[0040] 1. Reaction box; 2. Liquid injection pipe; 3. Liquid suction pipe; 4. Condenser; 5. First water injection pipe; 6. First drainage pipe; 7. Drain port; 8. Guide plate; 9. Horizontal plate; 10. Liquid permeable hole; 11. Connecting box; 12. Collecting box; 13. Guide pipe; 14. Liquid receiving box; 15. Connecting column; 16. Condenser cylinder; 17. Spiral pipe; 18. Second water injection pipe; 19. Second drainage pipe; 20. Paddle; 21. Elastic pipe; 22. Diverter block; 23. Collector cover; 24. Lifting plate; 25. Liquid flow hole; 26. Barrier ring; 27. Receiving plate; 28. Support rod; 29. ​​Heat transfer plate. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] See also Figure 1 , a cysteamine hydrochloride preparation device and method, comprising a reaction box 1,

[0045] A reaction mechanism, used for mixing liquids, and the reaction mechanism is arranged inside the reaction box 1;

[0046] A condenser 4 is used to cool the mixed liquid, and the condenser 4 is installed outside the reaction mechanism;

[0047] The recovery device is used for recovering carbon disulfide gas, and the recovery device is arranged on the right side of the reaction box 1.

[0048] Reference Figure 1 , Figure 2 The reaction mechanism consists of an injection tube 2 and a suction tube 3. The suction tube 3 is installed below the injection tube 2, and the two are connected. A condenser 4 is fixedly connected to the outer cylindrical surface of the injection tube 2. A first water injection tube 5 is installed near one end of the outer cylindrical surface of the condenser 4, and a first drainage tube 6 is installed near the other end of the outer cylindrical surface of the condenser 4.

[0049] The general process for preparing cysteamine hydrochloride is as follows: step 1, first adding carbon disulfide to an aqueous sodium sulfide solution dissolved in alcohol and reacting, step 2, then adding an aqueous solution of chloroethylamine hydrochloride to the solution after the reaction in step 1, step 3, adding hydrochloric acid to the solution in step 2 and reacting completely, step 4, evaporating and filtering the liquid after the reaction in step 3, thereby obtaining a crude solution of cysteamine hydrochloride, and then purifying it; when performing step 3, first injecting the original solution in step 2 into the reaction box 1, and then injecting hydrochloric acid into the injection tube 2 at a certain flow rate, the flow rate in the injection tube 2 is large and the pressure is small, and the pipette 3 has no flow rate, and its pressure will be greater than At this time, the pressure in the injection tube 2 is high under the action of atmospheric pressure, and the raw liquid in the suction tube 3 will flow into the injection tube 2 and mix with the flowing hydrochloric acid. The suction tube 3 realizes the extraction of the raw liquid in the reaction box 1, and the raw liquid and the hydrochloric acid are mixed little by little. In addition, ice water is injected from the first water injection pipe 5, and the ice water is discharged from the first drain pipe 6 to ensure that the interior of the condenser 4 is always in an ice-cold state. The heat generated after the raw liquid and the hydrochloric acid are mixed is cooled by the condenser 4, thereby avoiding heat accumulation. Compared with the traditional preparation of cysteamine hydrochloride, liquids need to be slowly added when mixing liquids. The mixing speed of the present invention will be faster and the problem of high temperature generation can be avoided.

[0050] As an embodiment of the present invention, refer to Figure 2 , Figure 3 The recovery device includes a connecting box 11, a collecting box 12, a guide pipe 13, a liquid receiving box 14, a connecting column 15, a condensing cylinder 16, a spiral tube 17, a second water injection pipe 18, and a second drainage pipe 19;

[0051] A connecting box 11 is fixedly connected to the right side of the reaction box 1, one end of the injection tube 2 extends to the interior of the connecting box 11, a condensing cylinder 16 is fixedly installed on the upper end of the connecting box 11, a spiral tube 17 is arranged inside the condensing cylinder 16, and the upper and lower ends of the spiral tube 17 are connected to the outside, a second water injection pipe 18 is fixedly installed on the outer cylindrical surface of the condensing cylinder 16 near the lower end, a second drainage pipe 19 is fixedly installed on the outer cylindrical surface of the condensing cylinder 16 near the upper end, and evenly distributed connecting columns 15 are fixedly connected to the lower surface of the condensing cylinder 16 near the connection with the spiral tube 17, the lower end of the connecting column 15 is fixedly connected to a liquid receiving box 14, and a guide tube 13 is installed at the lower end of the liquid receiving box 14, and a collecting box 12 is fixedly connected to the right outer surface of the connecting box 11, and the lower end of the guide tube 13 passes through the connecting box 11 and extends to the interior of the collecting box 12.

[0052] The mixed liquid will finally be discharged into the connecting box 11, the carbon disulfide in the mixed liquid will volatilize, and the gas will move upward along the inside of the connecting box 11 into the spiral tube 17, and ice water will be injected from the second water injection pipe 18, and then discharged from the second drainage pipe 19, ensuring that the spiral tube 17 inside the condensation cylinder 16 is always in an ice-cold state, and the carbon disulfide gas passing through the spiral tube 17 will be condensed into liquid, and the liquid carbon disulfide will flow downward along the inside of the spiral tube 17 and drip into the liquid receiving box 14, and finally flow into the collecting box 12 along the guide tube 13, avoiding the problem of high pressure when preparing cysteamine hydrochloride, and also realizing the recovery of carbon disulfide, reducing material waste, and saving materials for preparing cysteamine hydrochloride.

[0053] As an embodiment of the present invention, refer to Figure 2 , Figure 4 The upper and lower ends of the spiral tube 17 are fixedly connected with elastic tubes 21, and the elastic tube 21 is fixedly connected to the condensing cylinder 16. The inner bottom of the condensing cylinder 16 is rotatably connected with a blade 20 corresponding to the pipe opening position of the second water injection pipe 18.

[0054] When ice water is injected from the second water injection pipe 18, the flowing ice water will impact the blade 20 to rotate. When the blade 20 rotates, the blade will hit the elastic tube 21. The elastic tube 21 is a conduit made of elastic material. After being hit, the elastic tube 21 will deform to ensure that the blade 20 can rotate. As the blade 20 rotates, the elastic tube 21 will continuously elasticize and recover its deformation, which will drive the spiral tube 17 to shake. When the spiral tube 17 shakes, it will accelerate the downward movement of the carbon disulfide liquid on the inner wall, thereby improving the recovery of the liquid.

[0055] As an embodiment of the present invention, refer to Figure 2 A connecting port is provided at the lower end of the reaction box 1 and the connecting box 11. The inner bottoms of the reaction box 1 and the connecting box 11 are both inclined. A drain port 7 is provided on the outer surface of the reaction box 1 near the lower end.

[0056] When the mixed liquid is discharged from the injection pipe 2, it will flow into the connecting box 11. As the liquid is gradually injected, the mixed liquid will move downward. At the same time, the original liquid at the bottom of the connecting box 11 will flow into the reaction box 1 through the connecting port, and the original liquid will be replenished in time into the reaction box 1, so that the pipette 3 can continuously extract the original liquid until all the original liquid is mixed with the hydrochloric acid, thereby avoiding the mixing of the mixed liquid and the original liquid. When the mixed liquid needs to be evaporated, the discharge port 7 is opened, because the bottom of the reaction box 1 and the connecting box 11 are both inclined, which can facilitate the complete discharge of the mixed liquid and avoid the residue of the mixed liquid. In addition, after the gas is volatilized, the discharged mixed liquid moves to the lower part of the connecting box 11, and the new mixed liquid continues to flow in and volatilize the gas, so that the original liquid and the hydrochloric acid are cooled and discharged in time as soon as they are mixed, thereby avoiding the formation of a high temperature and high pressure environment.

[0057] As an embodiment of the present invention, refer to Figure 2 The inner wall of the connecting box 11 is fixedly connected with a guide plate 8, and the inner wall of the connecting box 11 is fixedly connected with a transverse plate 9 located below the guide plate 8. The interior of the transverse plate 9 is penetrated by evenly distributed liquid permeable holes 10.

[0058] When the mixed liquid is injected into the connecting box 11, it will impact the guide plate 8, and the liquid will flow into the connecting box 11 along the guide plate 8. As the liquid is gradually injected, the mixed liquid will move downward through the liquid permeable hole 10, avoiding excessive impact force when the mixed liquid flows into the connecting box 11, resulting in excessive mixing of the mixed liquid and the original liquid. The mixed liquid can slowly flow to the lower part of the connecting box 11, slowing down the flow between the two liquids, thereby further avoiding mixing of the mixed liquid and the original liquid.

[0059] As an embodiment of the present invention, refer to Figure 5 The inside of the injection tube 2 is fixedly connected with evenly distributed diverter blocks 22 , and a collecting cover 23 is arranged between each of the diverter blocks 22 . The collecting cover 23 is fixedly connected to the inner wall of the injection tube 2 .

[0060] The mixed liquid flows inside the injection tube 2, and is divided into two paths when passing through the diverter block 22. When passing through the manifold 23, the two mixed liquids impact each other and mix together, thereby promoting the full mixing of the hydrochloric acid and the stock solution. The mixed liquid continues to flow forward. Because multiple sets of diverter blocks 22 and manifolds 23 are provided, the rapid mixing of the hydrochloric acid and the stock solution is accelerated.

[0061] As an embodiment of the present invention, refer to Figure 6 , Figure 7 A barrier ring 26 is fixedly connected to the inner wall of the pipette 3, a lifting plate 24 is provided inside the pipette 3 below the barrier ring 26, a liquid flow hole 25 is penetrated through the inner center of the lifting plate 24, a receiving plate 27 is provided below the lifting plate 24, support rods 28 are fixedly connected to the left and right sides of the receiving plate 27, and one end of the support rod 28 is fixedly connected to the inner wall of the pipette 3.

[0062] When the hydrochloric acid in the injection tube 2 flows in too slowly, the internal pressure difference between the injection tube 2 and the pipette 3 will be very small, and the hydrochloric acid can easily flow into the pipette 3 at this time; when the hydrochloric acid flow rate in the injection tube 2 is fast, the raw liquid in the pipette 3 rises and passes through the gap between the receiving plate 27 and the pipette 3, and finally pushes the lifting plate 24 to move upward, and the lifting plate 24 will be limited by the barrier ring 26. After the lifting plate 24 moves up, the raw liquid will pass through the liquid flow hole 25 and flow into the injection tube 2; when the hydrochloric acid flow rate in the injection tube 2 is slow, the hydrochloric acid enters the pipette 3 and pushes the lifting plate 24 to move downward. The lifting plate 24 falls above the receiving plate 27, and its liquid flow hole 25 is blocked by the receiving plate 27, thereby avoiding the problem of hydrochloric acid continuing to flow downward, thereby realizing the function of preventing backflow.

[0063] As an embodiment of the present invention, refer to Figure 1 , Figure 8 The interior of the condenser tube 4 is penetrated by evenly distributed heat conducting plates 29 , and one end of the heat conducting plate 29 is fixedly connected to the outer wall of the liquid injection tube 2 .

[0064] The heat generated by the mixture of hydrochloric acid and the stock solution will be conducted by the heat conducting plate 29 and conducted to the outside, thereby accelerating the conduction of heat and improving the heat dissipation efficiency, thereby improving the condensation effect of the mixed solution.

[0065] A method for preparing cysteamine hydrochloride comprises the following steps:

[0066] S1: Mixing and releasing heat: Hydrochloric acid is injected into the injection tube 2 at a certain flow rate. The flow rate in the injection tube 2 is large and the pressure is small. The original liquid in the suction tube 3 will flow into the injection tube 2 and mix with the hydrochloric acid. The suction tube 3 extracts the original liquid in the reaction box 1. The original liquid and the hydrochloric acid are mixed little by little. The heat generated just after mixing is cooled by the condenser 4;

[0067] S2: Accelerate the mixing: The mixed liquid flows inside the injection tube 2, and is divided into two paths when passing through the diverter block 22. When passing through the manifold 23, the two mixed liquids impact each other and mix together, thereby promoting the full mixing of hydrochloric acid and the original liquid, and the mixed liquid continues to flow forward;

[0068] S3: Avoid mixing: When the mixed liquid is discharged from the injection tube 2, it will impact the guide plate 8, and the liquid will flow into the connecting box 11 along the guide plate 8. As the liquid is gradually injected, the mixed liquid will move downward through the liquid permeable hole 10, and at the same time, the original liquid at the bottom of the connecting box 11 will flow into the reaction box 1 through the connecting port, so that the pipette 3 can always extract the original liquid, avoiding mixing of the mixed liquid and the original liquid;

[0069] S4: Condensation recovery: The carbon disulfide in the mixed liquid will volatilize, move upward along the inside of the connecting box 11 and enter the spiral tube 17. After condensation in the condensation cylinder 16, the liquid carbon disulfide flows downward along the spiral tube 17 and drips into the liquid receiving box 14, and flows into the collection box 12 along the guide tube 13.

[0070] The above are only preferred specific implementations of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and improved concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cysteamine hydrochloride preparation device, Features: comprising a reaction box (1), A reaction mechanism, used for mixing liquids, wherein the reaction mechanism is arranged inside the reaction box (1); A condenser (4) is used to cool the mixed liquid, and the condenser (4) is installed outside the reaction mechanism; A recovery device, used for recovering carbon disulfide gas, wherein the recovery device is arranged on the right side of the reaction box (1); The reaction mechanism is composed of a liquid injection pipe (2) and a liquid suction pipe (3); the liquid suction pipe (3) is installed below the liquid injection pipe (2), and the two are arranged in communication; the outer cylindrical surface of the liquid injection pipe (2) is fixedly connected to a condenser pipe (4); a first water injection pipe (5) is installed near one end of the outer cylindrical surface of the condenser pipe (4); and a first drainage pipe (6) is installed near the other end of the outer cylindrical surface of the condenser pipe (4); The inside of the liquid injection pipe (2) is fixedly connected with evenly distributed flow diverter blocks (22), and flow collectors (23) are arranged between two of the flow diverter blocks (22), and the flow collectors (23) are fixedly connected to the inner wall of the liquid injection pipe (2); The inner wall of the pipette (3) is fixedly connected to a barrier ring (26); a lifting plate (24) is provided inside the pipette (3) below the barrier ring (26); a liquid flow hole (25) is provided through the center of the lifting plate (24); a receiving plate (27) is provided below the lifting plate (24); support rods (28) are fixedly connected to the left and right sides of the receiving plate (27); one end of the support rod (28) is fixedly connected to the inner wall of the pipette (3).

2. A cysteamine hydrochloride preparation device according to claim 1, Features: The recovery device comprises a connecting box (11), a collecting box (12), a flow guide pipe (13), a liquid receiving box (14), a connecting column (15), a condensing cylinder (16), a spiral tube (17), a second water injection pipe (18), and a second drainage pipe (19); The right side of the reaction box (1) is fixedly connected to a connecting box (11), one end of the injection pipe (2) extends into the interior of the connecting box (11), a condensing cylinder (16) is fixedly installed at the upper end of the connecting box (11), a spiral tube (17) is arranged inside the condensing cylinder (16), and the upper and lower ends of the spiral tube (17) are both connected to the outside, and a second water injection pipe (18) is fixedly installed on the outer circumferential surface of the condensing cylinder (16) near the lower end, and the outer circumferential surface of the condensing cylinder (16) near the upper end A second drain pipe (19) is fixedly installed; the lower surface of the condensing cylinder (16) is fixedly connected to a connection point with the spiral tube (17) with evenly distributed connection columns (15); the lower end of the connection column (15) is fixedly connected to a liquid receiving box (14); the lower end of the liquid receiving box (14) is installed with a guide pipe (13); the right outer surface of the connecting box (11) is fixedly connected to a collecting box (12); the lower end of the guide pipe (13) passes through the connecting box (11) and extends to the interior of the collecting box (12).

3. A cysteamine hydrochloride preparation device according to claim 2, Features: The upper and lower ends of the spiral tube (17) are fixedly connected to elastic tubes (21), the elastic tube (21) is fixedly connected to the condensing cylinder (16), and the inner bottom of the condensing cylinder (16) is rotatably connected to a paddle (20) corresponding to the position of the pipe mouth of the second water injection pipe (18).

4. A cysteamine hydrochloride preparation device according to claim 3, Features: The reaction box (1) and the connecting box (11) are provided with connecting openings at their lower ends. The inner bottoms of the reaction box (1) and the connecting box (11) are both designed to be inclined. A liquid discharge opening (7) is provided on the outer surface of the reaction box (1) near the lower end.

5. A cysteamine hydrochloride preparation device according to claim 4, Features: The inner wall of the connecting box (11) is fixedly connected to a guide plate (8), and the inner wall of the connecting box (11) is fixedly connected to a transverse plate (9) below the guide plate (8), and the interior of the transverse plate (9) is penetrated by evenly distributed liquid permeable holes (10).

6. A cysteamine hydrochloride preparation device according to claim 5, Features: The interior of the condenser tube (4) is penetrated by evenly distributed heat conduction plates (29), and one end of the heat conduction plate (29) is fixedly connected to the outer wall of the liquid injection tube (2).

7. A method for preparing cysteamine hydrochloride suitable for claim 6, Features: The steps include: S1: Mixing and releasing heat: hydrochloric acid is injected into the injection pipe (2) at a certain flow rate. The flow rate in the injection pipe (2) is large and the pressure is small. The original liquid in the suction pipe (3) flows into the injection pipe (2) and mixes with the hydrochloric acid. The suction pipe (3) extracts the original liquid in the reaction box (1). The original liquid and the hydrochloric acid are mixed little by little. The heat generated just after the mixing is cooled by the condenser (4); S2: Accelerate mixing: The mixed liquid flows inside the injection pipe (2) and is divided into two paths when passing through the diverter block (22). When passing through the manifold (23), the two mixed liquids impact each other and mix together, thereby promoting the hydrochloric acid and the original liquid to be fully mixed, and the mixed liquid continues to flow forward; S3: Avoiding mixing: When the mixed liquid is discharged from the injection tube (2), it will impact the guide plate (8), and the liquid will flow along the guide plate (8) into the connecting box (11). As the liquid is gradually injected, the mixed liquid will move downward through the liquid permeable hole (10). At the same time, the original liquid at the bottom of the connecting box (11) will flow into the reaction box (1) through the connecting port, so that the pipette (3) can always extract the original liquid, thereby avoiding mixing of the mixed liquid and the original liquid; S4: Condensation recovery: The carbon disulfide in the mixed liquid will volatilize and move upward along the inside of the connecting box (11) into the spiral tube (17). After condensation in the condensation cylinder (16), the liquid carbon disulfide flows downward along the spiral tube (17) and drips into the liquid receiving box (14), and flows into the collection box (12) along the guide tube (13).

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