Safety production process of amino chemical product

Abstract

The invention relates to the technical field of production of amino chemical products, in particular to a safety production process of amino chemical products, which comprises a bottom plate, a stirring mechanism and a driving unit. The amino acid solution is heated at different positions inside and outside the solution at the same time, so that the amino acid solution is uniformly heated, the evaporation and concentration speed of the amino acid solution is increased, and the time consumed for solution evaporation is shortened; the evaporation and concentration of the amino acid solution are more uniform, the problem that the product quality is reduced due to inconsistent crystallization of amino acid is avoided, meanwhile, the added seed crystals are uniformly distributed in the amino acid solution through the stirring mechanism, and the problem that the crystallization efficiency of the amino acid is lower due to non-uniform distribution of the seed crystals is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of amino chemical product production, in particular to a safe production process for amino chemical products. Background Art

[0002] Amino acids are the most common amino chemical products. There are three main production and preparation processes for amino acids: microbial fermentation, chemical synthesis and enzymatic method. Among them, microbial fermentation is the most common. The production and preparation process of amino acids by microbial fermentation generally includes fermentation operation, index determination, filtration treatment, concentration and crystallization, centrifugal separation and drying operation. Among them, concentration and crystallization is the most important step. Crystallized amino acids are easier to store and transport. Secondly, amino acids are widely used in the pharmaceutical industry. Amino acids in a crystalline state are easier to weigh and use, thereby accurately controlling the content of amino acids in drugs.

[0003] The existing amino acid concentration and crystallization process mainly involves evaporating and concentrating the amino acid solution with existing heating equipment to increase the saturation of the amino acids in the solution. When the solution evaporates to a saturated state, seed crystals are added to the amino acid solution so that the seed crystals are evenly distributed on the surface of the amino acid solution. The seed crystals are then evenly mixed into the solution by stirring to accelerate the precipitation of amino acid crystals in the solution.

[0004] The above process has the following deficiencies: 1. The heating and evaporation of the amino acid solution is usually carried out by evaporating and heating the amino acid solution outside the container containing the amino acid solution. This heating method is prone to cause the solution close to the heating area to heat up faster while the solution far from the heating area to heat up slower, resulting in uneven heating of the amino acid solution, and it takes a longer time to evaporate and concentrate the amino acid solution. Secondly, the uneven heating of the amino acid solution is prone to cause some areas in the container to reach saturation first and begin to crystallize, while other areas are still in an unsaturated state, which will result in large differences in the crystal size of the final product, affecting the product quality.

[0005] 2. The above-mentioned method of adding crystal seeds is prone to uneven precipitation of amino acid crystals in the amino acid solution, and will also lead to incomplete crystallization in some areas of the amino acid solution, thereby reducing the crystallization efficiency of the solution. Summary of the invention

[0006] Based on this, it is necessary to provide a safe production process for amino chemical products to solve the above technical problems.

[0007] The present application provides a safe production process for amino chemical products, which specifically includes the following steps:

[0008] S1. Fermentation operation: Place the activated microbial liquid that has reached a certain cell density into the fermentation equipment, add the amino acid fermentation medium and stir it thoroughly, control and adjust to the appropriate fermentation conditions, and continue stirring the fermentation equipment to perform the fermentation operation.

[0009] S2. Index determination: by determining the amino acid concentration, sugar concentration and pH value of the fermentation liquid in the fermentation equipment, the fermentation is stopped when the required index is reached to generate the required fermentation liquid.

[0010] S3, filtration treatment: filtering the obtained fermentation liquid.

[0011] S4, concentration and crystallization: The fermentation liquid after filtration is evaporated and concentrated, and seed crystals are added through amino acid crystal concentration and crystallization equipment to precipitate amino acid crystals.

[0012] S5. Centrifugal separation: Amino acid crystals are obtained by centrifugal separation.

[0013] S6, drying operation: drying the obtained amino acid crystals to obtain the final amino acid.

[0014] The amino acid crystal concentration and crystallization equipment involved in the above step S4 includes: a bottom plate, the upper end surface of the bottom plate is provided with two rod groups symmetrically distributed on the left and right, the rod group includes a plurality of fixed rods distributed in a matrix, the upper end surfaces of the plurality of fixed rods in the same rod group are commonly fixedly provided with an evaporating barrel, the plurality of fixed rods in the same rod group are commonly fixedly sleeved with a heating barrel located below the evaporating barrel, and the heating barrel is sleeved on the evaporating barrel, a circular plate with an axis colinear with the axis of the evaporating barrel is rotatably penetrated on the lower barrel wall of the evaporating barrel, the upper end surface of the bottom plate is rotatably provided with two rotating rods symmetrically distributed on the left and right, and the rotating rods penetrate the heating barrel and the circular plate, the circular plate is fixedly sleeved on the rotating rod, and the upper end surface of the circular plate is fixedly provided with a heating tube sleeved on the corresponding rotating rod.

[0015] The evaporating barrel is provided with a stirring mechanism for stirring the amino acid solution, and the upper end surface of the bottom plate is provided with a driving unit for driving the two rotating rods to rotate synchronously.

[0016] The stirring mechanism includes a circular seat, a circular seat is arranged above the evaporating barrel, a lifting group is arranged between the circular seat and the evaporating barrel, four feeding pipes with axes extending from top to bottom are arranged below the circular seat, the lower end surface of the feeding pipe is fixedly connected with two symmetrically distributed inclined pipes for dispersing the feeding, an annular feeding trough is arranged on the circular seat, a feeding group for intermittent feeding is arranged between the feeding trough and the feeding pipe, a rotation group for driving the feeding pipe to rotate is arranged on the lower end surface of the circular seat, and the stirring mechanism also includes a stirring group.

[0017] According to a favorable embodiment, the driving unit includes a driving group, the driving group is arranged on the base plate, the driving group includes a driving shaft, the upper end surface of the base plate is rotatably provided with the driving shaft, the driving shaft is connected to the motor, and a sprocket is fixedly sleeved on the rotating rod and the driving shaft on the right side, and the two sprockets are connected by a chain transmission.

[0018] According to a favorable embodiment, a transmission group is arranged on the bottom plate, and the transmission group includes sprocket 2. The fixed sleeve on the rotating rod is provided with sprocket 2 located below the corresponding sprocket 1, and the two sprockets 2 are connected by chain 2.

[0019] According to a favorable embodiment, the lifting group includes a vertical groove, and the upper end surface of the evaporation barrel is provided with two symmetrically distributed vertical grooves with axes extending from top to bottom. A sliding rod is slidably arranged in the vertical groove for guiding the up and down movement of the circular seat. The upper end surface of the sliding rod is fixedly connected to the circular seat through a connecting plate, and a reciprocating screw is fixedly arranged on the upper end surface of the rotating rod, and the circular seat and the reciprocating screw are threadedly matched.

[0020] According to a favorable embodiment, a pushing group is provided on the circular seat, and the pushing group includes a rotating cylinder, and the upper end surface of the circular seat is rotatably provided with a rotating cylinder sleeved on the corresponding reciprocating screw rod, and four fixed bars uniformly distributed in the circumference and corresponding to the discharge pipes are fixedly provided on the outer ring surface of the rotating cylinder, and a connecting rod located in the discharge trough is fixedly provided on the lower end surface of the fixed bar, and an arc-shaped pushing bar is fixedly provided on the lower end surface of the connecting rod, and the opening of the pushing bar faces the rotation direction of the rotating rod, and a plurality of uniformly distributed discharge ports are penetrated on the lower inner wall of the discharge trough, and a transverse plate is fixedly provided on the upper end surface of the reciprocating screw rod, and a transmission rod sliding through the transverse plate is fixedly provided on the upper end surface of the fixed bar.

[0021] According to a favorable embodiment, the material discharge group includes a rotating disk, the lower end surface of the circular seat is rotatably provided with a rotating disk sleeved on a reciprocating screw rod, the material discharge pipe is fixedly provided on the rotating disk, a plurality of through holes corresponding to the material discharge pipes are penetrated through the rotating disk, and a porous plate for dispersing the crystal seeds is fixedly provided in the material discharge pipe.

[0022] According to a favorable embodiment, the stirring group includes a cross plate, the rotating rod is slidably sleeved with a cross plate located below the reciprocating screw rod, and the cross plate is fixedly sleeved on all feeding pipes, a sliding groove is opened on the rotating rod, and a fixed block fixedly connected to the cross plate is slidably arranged in the sliding groove, and four L-shaped plates evenly distributed circumferentially are fixedly arranged on the rotating rod.

[0023] According to a favorable embodiment, the self-rotating group includes gears, each of the feeding tubes is fixedly sleeved with a gear, and the lower end surface of the circular seat is fixedly provided with a rack meshing with the corresponding gear.

[0024] According to a favorable embodiment, a discharge port is provided through the lower end surface of the evaporator barrel, a discharge pipe is fixedly provided on the lower end surface of the lower barrel wall of the evaporator barrel, and the discharge pipe is communicated with the discharge port, an arc-shaped groove is provided on the lower barrel wall of the evaporator barrel, an arc-shaped sliding plate for sealing the discharge port is slidably provided in the arc-shaped groove, a push bar is slidably provided on the outer wall of the evaporator barrel through a slider, the push bar is fixedly connected to the sliding plate, and a handle is fixedly provided on the push bar.

[0025] According to a favorable embodiment, a brush is fixedly provided on the lower end surface of the circular plate, and the brush is fixedly connected to the heating tube, and a slip ring is fixedly provided on the lower end surface of the evaporation barrel, and the brush is always in contact with the slip ring.

[0026] In summary, the present invention includes at least one of the following beneficial effects: First, in the present invention, the amino acid solution is heated at different positions inside and outside the solution at the same time, so that the amino acid solution is evenly heated, the speed of evaporation and concentration of the amino acid solution is accelerated, and the time consumed for solution evaporation is reduced; secondly, the stirring mechanism performs multiple stirring on the amino acid solution in different directions, so that the evaporation and concentration of the amino acid solution is more uniform, avoiding the problem of reduced product quality due to inconsistent crystallization of amino acids; at the same time, the stirring mechanism makes the added seed crystals evenly distributed in the amino acid solution, avoiding the problem of low amino acid crystallization efficiency due to uneven distribution of seed crystals.

[0027] 2. In the present invention, the intermittent feeding and rotational spreading of the feeding group make the seed crystals evenly distributed in the amino acid solution, and the seed crystals move back and forth up and down during the spreading process, which further improves the uniform distribution of the seed crystals in the amino acid solution and further reduces the problem of low crystallization efficiency caused by uneven distribution of the seed crystals. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0029] Figure 1 A flow chart of a safe production process for amino chemical products provided according to an embodiment of the present invention is shown.

[0030] Figure 2 A schematic diagram of the three-dimensional structure of an amino acid crystal concentration and precipitation device provided according to an embodiment of the present invention is shown.

[0031] Figure 3A partial structural sectional front view of an amino acid crystal concentration and precipitation device provided according to an embodiment of the present invention is shown.

[0032] Figure 4 A schematic diagram of a three-dimensional structure of a driving unit provided according to an embodiment of the present invention is shown.

[0033] Figure 5 A partial cross-sectional view of the three-dimensional structure of an amino acid crystal concentration and precipitation device provided according to an embodiment of the present invention is shown.

[0034] Figure 6 A partial cross-sectional view of the three-dimensional structure of a stirring mechanism provided according to an embodiment of the present invention is shown.

[0035] Figure 7 A partial cross-sectional view of the three-dimensional structure of an evaporation barrel, a stirring group and a rotation group provided according to an embodiment of the present invention is shown.

[0036] Figure 8 The embodiment of the present invention provides Figure 7 A magnified view of the structure in the middle.

[0037] Fig. 9 The embodiment of the present invention provides Figure 7 A magnified view of the structure at B in the middle.

[0038] Fig.10 A partial cross-sectional view of the three-dimensional structure of an evaporation barrel, a discharge port and a sliding plate provided according to an embodiment of the present invention is shown.

[0039] The above drawings include the following reference numerals:

[0040] 1. Bottom plate; 10. Rotating rod; 100. Slide; 101. Fixed block; 2. Fixed rod; 3. Evaporating barrel; 30. Heating cylinder; 300. Heating tube; 31. Circular plate; 310. Brush; 311. Slip ring; 4. Stirring mechanism; 40. Circular seat; 400. Discharging trough; 41. Lifting group; 410. Vertical slot; 411. Sliding rod; 412. Reciprocating screw rod; 42. Feeding tube; 420. Inclined tube; 43. Feeding group; 430. Rotating disk; 431. Through hole; 432. Perforated plate; 44. Rotating group; 440. Gear; 441. Gear bar; 45, stirring group; 450, cross plate; 451, L-shaped plate; 46, pushing group; 460, rotating cylinder; 461, fixing bar; 462, connecting rod; 463, pushing bar; 464, unloading port; 465, transverse plate; 466, transmission rod; 47, discharging port; 470, arc groove; 471, sliding plate; 472, pushing bar; 473, handle; 5, driving unit; 50, driving group; 500, driving shaft; 501, motor; 502, sprocket one; 503, chain one; 51, transmission group; 510, sprocket two; 511, chain two. DETAILED DESCRIPTION

[0041] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0042] like Figure 1 As shown, a safe production process for amino chemical products specifically includes the following steps:

[0043] S1. Fermentation operation: In the initial stage of the microbial fermentation process, the activated microbial culture liquid is placed in the fermentation equipment. At this time, the fermentation medium rich in amino acids needs to be added and ensured to be mixed evenly. The operator should control the temperature, oxygen concentration and pH value in the fermentation equipment to promote the healthy growth of microorganisms and lay the foundation for the subsequent fermentation process.

[0044] S2. Index determination: As the fermentation process progresses, it enters the index determination stage. At this time, professionals need to use precision instruments to measure key indicators such as amino acid concentration, sugar concentration and pH value in the fermentation liquid. When all indicators reach the predetermined standards, the operator will stop the fermentation process in time to ensure the compliance of the generated fermentation liquid in terms of quality and purity.

[0045] S3. Filtration: Next, the fermentation liquid needs to be filtered to remove impurities and unreacted raw materials generated during the fermentation process. This process can significantly improve the efficiency of subsequent treatments and the purity of the final product, thus laying the foundation for concentration and crystallization operations.

[0046] S4, Concentration and crystallization: The filtered fermentation broth then enters the concentration and crystallization stage. This step removes excess water by evaporation to increase the concentration of amino acids. In this process, an appropriate amount of seed crystals is added through the amino acid crystal concentration and crystallization equipment to promote the crystallization of amino acids so that crystals can be effectively formed.

[0047] S5. Centrifugal separation: After the crystallization is completed, the mixture is separated by a centrifuge. The main purpose of this process is to separate the amino acid crystals from the liquid in order to extract high-purity amino acid crystals and prepare for subsequent drying treatment.

[0048] S6, Drying: Finally, the amino acid crystals obtained need to be dried to remove residual moisture in the crystals, thereby ensuring the stability of the final product and the feasibility of long-term storage. After sufficient drying, high-purity amino acids can be obtained.

[0049] like Figure 2 and Figure 3 As shown, the above step S4 involves an amino acid crystal concentration and crystallization device, including: a bottom plate 1, the upper end surface of the bottom plate 1 is provided with two rod groups distributed symmetrically on the left and right, the rod group includes a plurality of fixed rods 2 distributed in a matrix, the upper end surfaces of the plurality of fixed rods 2 in the same rod group are commonly fixedly provided with an evaporation barrel 3, the plurality of fixed rods 2 in the same rod group are commonly fixedly sleeved with a heating barrel 30 located below the evaporation barrel 3, and the heating barrel 30 is sleeved on the evaporation barrel 3, a circular plate 31 with an axis colinear with the axis of the evaporation barrel 3 is rotatably penetrated on the lower barrel wall of the evaporation barrel 3, two rotating rods 10 distributed symmetrically on the upper end surface of the bottom plate 1 are rotatably provided, and the rotating rods 10 penetrate the heating barrel 30 and the circular plate 31, the circular plate 31 is fixedly sleeved on the rotating rod 10, and the upper end surface of the circular plate 31 is fixedly provided with a heating tube 300 sleeved on the corresponding rotating rod 10.

[0050] like Figure 2 As shown, the evaporation barrel 3 is provided with a stirring mechanism 4 for stirring the amino acid solution, and the upper end surface of the bottom plate 1 is provided with a driving unit 5 for driving the two rotating rods 10 to rotate synchronously.

[0051] like Figure 2 , Figure 3 and Figure 4As shown, the driving unit 5 includes a driving group 50, and the driving group 50 is arranged on the base plate 1. The driving group 50 includes a driving shaft 500. The driving shaft 500 is rotatably arranged on the upper end surface of the base plate 1, and the driving shaft 500 is connected to the motor 501. A sprocket 502 is fixedly sleeved on the right side of the rotating rod 10 and the driving shaft 500, and the two sprockets 502 are connected by a chain 503.

[0052] like Figure 2 , Figure 3 and Figure 4 As shown, a transmission group 51 is provided on the base plate 1, and the transmission group 51 includes a second sprocket 510. The rotating rod 10 is fixedly sleeved with a second sprocket 510 located below the corresponding first sprocket 502, and the two second sprockets 510 are connected by a second chain 511.

[0053] During operation, the motor 501 drives the corresponding sprocket 1 502 to rotate through the driving shaft 500, and the sprocket 1 502 on the driving shaft 500 drives the sprocket 1 502 on the rotating rod 10 to rotate through the chain, and the sprocket 1 502 drives the left rotating rod 10 to rotate synchronously, and the rotating rod 10 drives the left sprocket 2 510 to rotate synchronously, and through the chain 2 511 connected between the two sprockets 2 510, the two sprockets 2 510 rotate synchronously, and the right sprocket 2 510 drives the corresponding rotating rod 10 to rotate synchronously.

[0054] like Figure 2 , Figure 3 and Figure 5 As shown, the stirring mechanism 4 includes a circular seat 40, the circular seat 40 is arranged above the evaporation barrel 3, a lifting group 41 is arranged between the circular seat 40 and the evaporation barrel 3, a feeding pipe 42 with four axes extending from top to bottom is arranged below the circular seat 40, the lower end surface of the feeding pipe 42 is fixedly connected with two symmetrically distributed inclined tubes 420 for dispersing and discharging crystal seeds, an annular discharge trough 400 is arranged on the circular seat 40, a feeding group 43 for intermittent feeding is arranged between the discharge trough 400 and the feeding pipe 42, a rotation group 44 for driving the feeding pipe 42 to rotate is arranged on the lower end surface of the circular seat 40, and the stirring mechanism 4 also includes a stirring group 45.

[0055] like Figure 3 , Figure 5 and Figure 6As shown, the lifting group 41 includes a vertical groove 410, and the upper end surface of the evaporation barrel 3 is provided with two symmetrically distributed vertical grooves 410 with axes extending from top to bottom. A sliding rod 411 is slidably arranged in the vertical groove 410 for guiding the circular seat 40 to move up and down. The upper end surface of the sliding rod 411 is fixedly connected to the circular seat 40 through a connecting plate, and a reciprocating screw rod 412 is fixedly arranged on the upper end surface of the rotating rod 10, and the circular seat 40 is threadedly matched with the reciprocating screw rod 412.

[0056] like Figure 3 , Figure 5 and Figure 6 As shown, a pushing group 46 is provided on the circular seat 40, and the pushing group 46 includes a rotating cylinder 460. The upper end surface of the circular seat 40 is rotatably provided with a rotating cylinder 460 sleeved on the corresponding reciprocating screw rod 412, and four fixed bars 461 uniformly distributed in the circumference and corresponding to the discharge pipe 42 are fixedly provided on the outer ring surface of the rotating cylinder 460, and a connecting rod 462 located in the discharge trough 400 is fixedly provided on the lower end surface of the fixed bar 461, and an arc-shaped pushing bar 463 is fixedly provided on the lower end surface of the connecting rod 462, and the opening of the pushing bar 463 faces the rotation direction of the rotating rod 10, and a plurality of uniformly distributed discharge openings 464 are penetrated on the lower inner wall of the discharge trough 400, a transverse plate 465 is fixedly provided on the upper end surface of the reciprocating screw rod 412, and a transmission rod 466 that slides through the transverse plate 465 is fixedly provided on the upper end surface of the fixed bar 461.

[0057] During operation, the motor 501 works to make the driving unit 5 work, and the driving unit 5 works to drive the two rotating rods 10 to rotate synchronously, and the rotating rod 10 drives the reciprocating screw 412 to rotate synchronously, and the threaded cooperation between the reciprocating screw 412 and the circular seat 40 makes the reciprocating screw 412 drive the circular seat 40 to move reciprocatingly up and down, and the reciprocating screw 412 rotates while driving the transverse plate 465 to rotate, and the transverse plate 465 drives the fixed bar 461 to rotate around the rotating rod 10 through the transmission rod 466, and the fixed bar 461 drives the rotating cylinder 460 to rotate synchronously, and the rotating cylinder 460 drives the corresponding connecting rod 462 to rotate synchronously through multiple fixed bars 461. The connecting rod 462 drives the corresponding pushing bar 463 to rotate synchronously, and pushes the seed crystal into the discharge port 464.

[0058] like Figure 6 , Figure 7 and Fig. 9 As shown, the material discharge group 43 includes a rotating disk 430, and the lower end surface of the circular seat 40 is rotatably provided with a rotating disk 430 sleeved on the reciprocating screw rod 412, and the material discharge pipe 42 is fixedly set on the rotating disk 430, and a plurality of through holes 431 corresponding to the material discharge pipe 42 are opened through the rotating disk 430, and a porous plate 432 for dispersing the crystal seeds is fixedly set in the material discharge pipe 42.

[0059] like Figure 2 , Figure 5 and Figure 7 As shown, the stirring group 45 includes a cross plate 450, and the rotating rod 10 is slidably sleeved with a cross plate 450 located below the reciprocating screw rod 412. A slide groove 100 is opened on the rotating rod 10, and a fixed block 101 fixedly connected to the cross plate 450 is slidably arranged in the slide groove 100, and the cross plate 450 is fixedly sleeved on all the discharge pipes 42, and four L-shaped plates 451 evenly distributed circumferentially are fixedly arranged on the rotating rod 10.

[0060] like Figure 5 , Figure 6 and Figure 7 As shown, the self-rotating group 44 includes a gear 440 , and each of the feeding tubes 42 is fixedly sleeved with a gear 440 . The lower end surface of the circular seat 40 is fixedly provided with a rack 441 meshing with the corresponding gear 440 .

[0061] During operation, the pushing group 46 pushes the seed crystal into the discharge port 464. If the through hole 431 on the rotating disk 430 is connected to the discharge port 464 when rotating, the seed crystal is located above the rotating disk 430 at this time. During the rotation of the rotating rod 10, the rotating rod 10 pushes the fixed block 101 to rotate synchronously through the inner wall of the slide slot 100. The fixed block 101 drives the cross plate 450 to rotate. The cross plate 450 drives multiple discharge tubes 42 to rotate synchronously. The discharge tube 42 drives the rotating disk 430 to rotate synchronously. When the rotating disk 430 rotates until the through hole 431 thereon is connected to the discharge port 464, the seed crystal falls from the discharge port 464 to the discharge tube 42. After the seed crystal falls and contacts the porous plate 432, it is gathered in the porous plate 432. The seeds are dispersed together, so that the seeds fall downward evenly. When the rotating disk 430 rotates, the gear 440 drives the discharge tube 42 to rotate by the meshing between the gear 440 and the rack 441. The discharge tube 42 drives the corresponding two inclined tubes 420 to rotate synchronously. The seeds fall downward from the two inclined tubes 420 into the solution at the same time, so that the seeds are evenly distributed in the solution. The rotating disk 430 drives the discharge tube 42 to revolve, which further improves the uniform distribution of the seeds in the solution. At the same time, the lifting group 41 drives the rotating disk 430 to reciprocate in the up and down directions, so that the seeds are evenly distributed in the up and down directions, providing more nucleation sites for the crystallization and precipitation of amino acids, accelerating the crystallization process, and improving the crystallization efficiency.

[0062] It should be noted that the push bar 463 pushes the seed crystal into the discharge port 464 before the through hole 431 rotates to communicate with the discharge port 464 . At this time, the seed crystal is blocked by the rotating disk 430 and cannot fall downward.

[0063] The rotation of the rotating rod 10 drives the L-shaped plate 451 to rotate synchronously. The L-shaped plate 451 rotates synchronously with the discharge pipe 42 to stir the amino acid solution uniformly in the circumferential direction. At the same time, the rotation group 44 drives the discharge pipe 42 to rotate, so that the discharge pipe 42 revolves around the rotating rod 10 to stir the amino acid solution. At the same time, the discharge pipe 42 drives the corresponding two inclined tubes 420 to rotate to stir the amino acid solution. The synchronous rotation of the two inclined tubes 420 increases the stirring amplitude of the amino acid solution, and the lifting group 41 drives the discharge pipe 42 to move up and down, so that the amino acid solution is uniformly stirred in multiple directions at the same time, which speeds up the evaporation and concentration speed of the amino acid solution and improves the crystallization efficiency of the amino acid crystals.

[0064] like Figure 5 and Fig.10 As shown, a discharge port 47 is provided through the lower end surface of the evaporator barrel 3, a discharge pipe is fixedly provided on the lower end surface of the lower barrel wall of the evaporator barrel 3, and the discharge pipe is communicated with the discharge port 47, an arc groove 470 is provided on the lower barrel wall of the evaporator barrel 3, an arc-shaped sliding plate 471 for blocking the discharge port 47 is slidably provided in the arc groove 470, a push bar 472 is slidably provided on the outer wall of the evaporator barrel 3 through a slider, the push bar 472 is fixedly connected to the sliding plate 471, and a handle 473 is fixedly provided on the push bar 472.

[0065] like Figure 3 , Figure 7 and Figure 8 As shown, a brush 310 is fixedly provided on the lower end surface of the circular plate 31, and the brush 310 is fixedly connected to the heating tube 300. A slip ring 311 is fixedly provided on the lower end surface of the evaporating barrel 3, and the slip ring 311 is connected to an external power supply (not shown in the figure), and the brush 310 is always in contact with the slip ring 311.

[0066] In the initial state, the sliding plate 471 is located at a position that blocks the discharge port 47. During operation, the heating tube 300 and the heating cylinder 30 work simultaneously to heat and evaporate the amino acid solution from both the inside and the outside, thereby increasing the evaporation rate of the amino acid solution. The contact between the brush 310 and the slip ring 311 ensures that the heating tube 300 is always powered on, thereby avoiding the entanglement of wires caused by the rotation of the heating tube 300. After completing the concentration and crystallization of the amino acid solution, the staff pushes the pushing bar 472 with the handle 473 to move, and the moving bar drives the sliding plate 471 to move along the arc groove 470 until it is staggered with the discharge port 47, and the amino acid crystal suspension after evaporation and crystallization flows out from the discharge port 47 to the discharge pipe.

[0067] During the specific operation, the staff pours the amino acid solution into the two evaporating barrels 3, and the heating cylinder 30 and the heating tube 300 located in the evaporating barrel 3 work synchronously to heat and evaporate the amino acid solution. Then the driving group 50 drives the left rotating rod 10 to rotate, and the two rotating rods 10 are rotated synchronously through the transmission group 51. The rotating rod 10 rotates and drives the corresponding stirring group 45 to drive the feeding tube 42 and the L-shaped plate 451 to rotate to stir the solution. At the same time, the rotation group 44 drives the feeding tube 42 to rotate, thereby driving the inclined tube 420 to rotate to stir the solution. The lifting group 41 drives the feeding tube 42 and the inclined tube 420 to move up and down reciprocatingly, so that the stirring of the amino acid solution is more sufficient and uniform, which reduces the time required for the evaporation of the amino acid solution and improves The evaporation efficiency of the amino acid solution is improved. When the amino acid solution evaporates to a saturated state, the staff puts seed crystals into the discharge trough 400. The rotation of the rotating rod 10 drives the pushing group 46 to push the amino acid crystals to the discharge port 464. At the same time, the discharge group 43 drives the seed crystals to be discharged intermittently. The seed crystals sink downward from the inclined tube 420 into the amino acid solution. The inclined tube 420 revolves around the rotating rod 10 while rotating. The lifting group 41 drives the inclined tube 420 to move up and down, so that the seed crystals are evenly distributed in the solution, thereby improving the precipitation efficiency of the amino acid crystals. After completing the evaporation concentration and crystallization of the amino acid solution, the suspension containing the amino acid crystals flows out from the discharge port 47 to the discharge pipe, and then the subsequent centrifugal separation and drying steps are carried out.

[0068] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0069] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0070] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it 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 elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0071] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A safe production process for amino chemical products, characterized in that: The specific steps include: S1. Fermentation operation: Place the activated microbial liquid that has reached a certain cell density into the fermentation equipment, add the amino acid fermentation medium and stir it fully, control and adjust to the appropriate fermentation conditions, and continue stirring the fermentation equipment to perform the fermentation operation; S2. Index determination: by determining the amino acid concentration, sugar concentration, and pH value of the fermentation liquid in the fermentation equipment, the fermentation is stopped when the required index is reached, and the required fermentation liquid is generated; S3, filtration treatment: filtering the generated fermentation liquid; S4, concentration and crystallization: the fermentation liquid after filtration is evaporated and concentrated, and seed crystals are added through an amino acid crystal concentration and crystallization device to allow amino acid crystals to precipitate; S5, centrifugal separation: obtaining amino acid crystals by centrifugal separation; S6, drying operation: drying the obtained amino acid crystals to obtain the final amino acid; The amino acid crystal concentration and crystallization equipment involved in the above step S4 comprises: a bottom plate (1), the upper end surface of the bottom plate (1) is provided with two rod groups that are symmetrically distributed on the left and right, the rod group comprises a plurality of fixed rods (2) distributed in a matrix, an evaporation barrel (3) is fixedly provided on the upper end surfaces of the plurality of fixed rods (2) in the same rod group, a heating barrel (30) located below the evaporation barrel (3) is fixedly provided on the plurality of fixed rods (2) in the same rod group, and the heating barrel (30) is sleeved on the evaporation barrel ( 3), a circular plate (31) with an axis colinear with the axis of the evaporating barrel (3) is rotatably penetrated on the lower barrel wall of the evaporating barrel (3), and two rotating rods (10) symmetrically distributed on the upper end surface of the bottom plate (1) are rotatably arranged, and the rotating rods (10) penetrate the heating barrel (30) and the circular plate (31), and the circular plate (31) is fixedly sleeved on the rotating rods (10), and a heating tube (300) sleeved on the corresponding rotating rods (10) is fixedly arranged on the upper end surface of the circular plate (31); The evaporation barrel (3) is provided with a stirring mechanism (4) for stirring the amino acid solution, and the upper end surface of the bottom plate (1) is provided with a driving unit (5) for driving the two rotating rods (10) to rotate synchronously; The stirring mechanism (4) comprises a circular seat (40), the circular seat (40) is arranged above the evaporation barrel (3), a lifting group (41) is arranged between the circular seat (40) and the evaporation barrel (3), a feeding pipe (42) with four axes extending from top to bottom is arranged below the circular seat (40), the lower end surface of the feeding pipe (42) is fixedly connected with two symmetrically distributed inclined pipes (420) for dispersing the feeding, an annular feeding trough (400) is arranged on the circular seat (40), a feeding group (43) for intermittent feeding is arranged between the feeding trough (400) and the feeding pipe (42), a rotation group (44) for driving the feeding pipe (42) to rotate is arranged on the lower end surface of the circular seat (40), and the stirring mechanism (4) further comprises a stirring group (45).

2. The safe production process of amino chemical products according to claim 1, characterized in that: The driving unit (5) comprises a driving group (50), the driving group (50) is arranged on the bottom plate (1), the driving group (50) comprises a driving shaft (500), the driving shaft (500) is rotatably arranged on the upper end surface of the bottom plate (1), the driving shaft (500) is connected to the motor (501), and a sprocket wheel (502) is fixedly sleeved on the right rotating rod (10) and the driving shaft (500), and the two sprocket wheels (502) are connected to each other by a chain wheel (503).

3. A safe production process for amino chemical products according to claim 2, characterized in that: A transmission group (51) is arranged on the bottom plate (1), and the transmission group (51) comprises a second sprocket (510). A second sprocket (510) located below the corresponding first sprocket (502) is fixedly sleeved on the rotating rod (10), and the two second sprockets (510) are connected by a second chain (511).

4. The safe production process of amino chemical products according to claim 1, characterized in that: The lifting group (41) comprises a vertical groove (410), and the upper end surface of the evaporation barrel (3) is provided with two symmetrically distributed vertical grooves (410). A sliding rod (411) is slidably arranged in the vertical groove (410) for guiding the circular seat (40) to move up and down. The upper end surface of the sliding rod (411) is fixedly connected to the circular seat (40) through a connecting plate. A reciprocating screw rod (412) is fixedly arranged on the upper end surface of the rotating rod (10), and the circular seat (40) and the reciprocating screw rod (412) are threadedly matched.

5. The safe production process of amino chemical products according to claim 4, characterized in that: The circular seat (40) is provided with a material pushing group (46), and the material pushing group (46) includes a rotating cylinder (460). The upper end surface of the circular seat (40) is rotatably provided with a rotating cylinder (460) sleeved on a corresponding reciprocating screw rod (412). Four fixing bars (461) evenly distributed in the circumference and corresponding to the material discharge pipes (42) are fixedly provided on the outer ring surface of the rotating cylinder (460). The lower end surface of the fixing bar (461) is fixedly provided with a connecting rod located in the material discharge trough (400). (462), an arc-shaped pushing strip (463) is fixedly provided on the lower end surface of the connecting rod (462), and the opening of the pushing strip (463) faces the rotation direction of the rotating rod (10), a plurality of evenly distributed discharge openings (464) are penetrated through the lower inner wall of the discharge trough (400), a transverse plate (465) is fixedly provided on the upper end surface of the reciprocating screw rod (412), and a transmission rod (466) that slides through the transverse plate (465) is fixedly provided on the upper end surface of the fixed strip (461).

6. The safe production process of amino chemical products according to claim 4, characterized in that: The material discharge group (43) comprises a rotating disk (430), the lower end surface of the circular seat (40) is rotatably provided with a rotating disk (430) sleeved on a reciprocating screw rod (412), the material discharge pipe (42) is fixedly provided on the rotating disk (430), a plurality of through holes (431) corresponding to the material discharge pipes (42) are penetrated through the rotating disk (430), and a porous plate (432) for dispersing crystal seeds is fixedly provided in the material discharge pipe (42).

7. The safe production process of amino chemical products according to claim 4, characterized in that: The stirring group (45) comprises a cross plate (450), the rotating rod (10) is slidably sleeved with a cross plate (450) located below the reciprocating screw rod (412), and the cross plate (450) is fixedly sleeved on all the feeding tubes (42), the rotating rod (10) is provided with a slide groove (100), a fixed block (101) fixedly connected to the cross plate (450) is slidably arranged in the slide groove (100), and four L-shaped plates (451) evenly distributed in the circumferential direction are fixedly arranged on the rotating rod (10).

8. The safe production process of amino chemical products according to claim 1, characterized in that: The self-rotating group (44) comprises a gear (440), each of the feed tubes (42) is fixedly sleeved with a gear (440), and the lower end surface of the circular seat (40) is fixedly provided with a rack (441) meshing with the corresponding gear (440).

9. The safe production process of amino chemical products according to claim 1, characterized in that: The lower end surface of the evaporating barrel (3) is provided with a discharge port (47) through it, the lower end surface of the lower barrel wall of the evaporating barrel (3) is fixedly provided with a discharge pipe, and the discharge pipe is connected to the discharge port (47), the lower barrel wall of the evaporating barrel (3) is provided with an arc groove (470), an arc-shaped sliding plate (471) for blocking the discharge port (47) is slidably provided in the arc groove (470), a push bar (472) is slidably provided on the outer wall of the evaporating barrel (3) through a slider, the push bar (472) is fixedly connected to the sliding plate (471), and a handle (473) is fixedly provided on the push bar (472).

10. The safe production process of amino chemical products according to claim 1, characterized in that: A brush (310) is fixedly arranged on the lower end surface of the circular plate (31), and the brush (310) is fixedly connected to the heating tube (300). A slip ring (311) is fixedly arranged on the lower end surface of the evaporation barrel (3), and the brush (310) is always in contact with the slip ring (311).

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