Amino acid chelate salt reaction machine

Abstract

The invention relates to the technical field of reaction equipment, and provides an amino acid chelate reaction machine which comprises a base and a kettle body arranged on the base, a circulation mechanism is arranged on one side of the kettle body, the circulation mechanism can convey the bottom of the kettle body to the upper end of the kettle body, the circulation mechanism at least comprises a circulation pipe arranged on one side of the kettle body, and a PH detection mechanism is arranged in the circulation pipe; a PH adjusting mechanism is arranged on the base, and the PH adjusting mechanism can add acid and alkali liquor into the circulating pipe; the pH value of the reaction liquid is adjusted by adding the acid liquid or the alkali liquid from the circulating pipe, so that the acid liquid or the alkali liquid is preliminarily mixed in the circulating pipe, the uniformity of adding the acid liquid or the alkali liquid is improved, and meanwhile, the pH value of the reaction liquid is relatively accurately detected.

Description

Technical Field

[0001] The present invention relates to the technical field of reaction equipment, in particular to an amino acid chelate reactor. Background Art

[0002] Amino acid chelate is a compound formed by metal ions and amino acids, and needs to be reacted in a reaction device during synthesis; CN118543321B discloses a three-dimensional chelation reaction device for organic water-soluble fertilizers, comprising: a reactor, wherein a heating component for heating metal ions, ligands and aqueous solution is provided inside the reactor; a variable speed transmission component, which is used to stir the metal ions, ligands and aqueous solution provided inside the reactor and increase or decrease the stirring speed, and the variable speed transmission component includes a stirring column that penetrates the top surface of the reactor and is rotatably connected thereto, and the stirring column rotates around its The body axis is driven, and a conical rotating column is fixedly installed on the outer wall of the stirring column and at an upper position. The outer wall of the conical rotating column is provided with a conical transmission disk that is driven to rise and fall, and the conical transmission disk and the conical rotating column maintain friction transmission, and the maximum diameter of the conical transmission disk is smaller than the maximum diameter of the conical rotating column but larger than the minimum diameter of the conical rotating column; the deceleration component is used to drive the conical transmission disk to rise and fall, and adjust the lifting speed of the conical transmission disk; the adjustment component adjusts the stirring speed of the metal ions, ligands and aqueous solution through the variable speed transmission component to adaptively adjust the heating temperature of the heating component.

[0003] In the prior art, it is necessary to adjust the pH value in the reaction equipment during the reaction to control the metal chelation reaction within the weakly acidic to neutral range. Therefore, it is necessary to set a pH adjustment device on the reaction equipment. When adjusting the pH of the current reaction equipment, acid or alkali solution is usually added directly from the upper end of the reaction equipment to the reaction equipment and then stirred evenly by a stirring unit. However, the direct addition of acid and alkali solution can easily lead to insufficient mixing of the acid and alkali solution with the solution in the reaction, affecting the detection of the pH value, thereby leading to the accidental addition of acid and alkali solution and affecting the reaction of the material. Summary of the Invention

[0004] In existing reaction equipment, the acid and alkali solutions are not mixed evenly with the solution in the reaction when added, which affects the detection of the pH value and leads to the erroneous addition of the acid and alkali solutions. At the same time, the pH detection probe in the reaction equipment is installed inside the reaction equipment. However, due to the large internal space of the reaction device, when the acid and alkali solutions are added and stirred unevenly, only the pH value of the solution at a local position can be detected, resulting in the inability to accurately obtain the pH value of the reactants in the reaction equipment. Therefore, the present invention provides an amino acid chelate reactor to solve the above problems.

[0005] In view of this, the present invention aims to provide an amino acid chelate reactor. In the present invention, the reactor includes a base and a kettle body arranged on the base; a circulation mechanism is provided on one side of the kettle body, and the circulation mechanism can transport the bottom of the kettle body to the upper end of the kettle body. The circulation mechanism includes at least a circulation pipe provided on one side of the kettle body, and a pH detection mechanism is provided in the circulation pipe; a pH adjustment mechanism is provided on the base, and the pH adjustment mechanism can add acid and alkali solutions into the circulation pipe.

[0006] Furthermore, the circulation mechanism includes a power pump, a liquid inlet pipe, a liquid outlet pipe and a circulation pipe; the liquid inlet pipe connects the bottom of the kettle body and the side of the circulation pipe, and the liquid outlet pipe connects the top of the kettle body and the side of the circulation pipe; the openings at both ends of the circulation pipe are connected to the pH adjustment mechanism for adding acid and alkali respectively.

[0007] Furthermore, the pH adjustment mechanism includes a support frame, an acid storage chamber and an alkali storage chamber respectively arranged at the upper and lower ends of the support frame, and a drive assembly; the acid storage chamber and the alkali storage chamber respectively store acid and alkali; the drive assembly is used to transport the acid and alkali in the acid storage chamber and the alkali storage chamber to the interior of the circulation pipe.

[0008] Furthermore, the driving assembly includes a driving member and a liquid adding unit. The liquid adding units are provided at the openings at both ends of the circulation pipe. The two liquid adding units are respectively connected to the acid storage chamber and the alkali solution storage chamber through a peristaltic pump and a telescopic hose. The driving member drives the liquid adding unit to transport acid or alkali solution into the circulation pipe.

[0009] Furthermore, the liquid adding unit includes a positioning cylinder and a liquid inlet rod; the positioning cylinder is inserted into the opening of the circulation pipe, and the openings at both ends of the positioning cylinder are for the liquid inlet rod to be inserted, and the outer wall of the liquid inlet rod is in contact with the inner wall of the positioning cylinder; one end of the liquid inlet rod is connected to the telescopic hose;

[0010] A liquid inlet is provided on the side of the liquid inlet rod; a pressure plate is provided at one end of the liquid inlet rod away from the circulation pipe; a return spring is provided between the pressure plate and the positioning cylinder, and the return spring is sleeved on the outside of the liquid inlet rod.

[0011] Furthermore, the liquid inlet is an elongated strip-shaped structure opened on the liquid inlet rod, and the size of the opening is controlled by the positioning tube.

[0012] Furthermore, the positioning cylinder is detachably mounted on the circulation pipe via a locking unit; the locking unit comprises a locking cylinder and a slot, the slot being provided on the positioning cylinder for inserting the locking cylinder;

[0013] A limiting groove is provided on the inner wall of the circulation pipe, and a locking plate is provided on the outer wall of the locking cylinder. The locking plate is rotatably installed on the locking cylinder through a rotating shaft, and a torsion spring is provided on the rotating shaft; a notch is provided on the positioning cylinder for the locking plate to pass through the limiting groove.

[0014] Furthermore, the driving member includes a driving motor, a worm, a turbine, a gear and a linkage rod; the driving motor is mounted on a support frame and connected to the worm to drive the worm to rotate; the turbine is mounted on the support frame through a rotating shaft and meshes with the worm for transmission;

[0015] The gear rod is vertically mounted on the support frame, and the gear rod is slidably arranged on the support frame through a sliding sleeve; the linkage rod is provided with two links respectively fixed at the upper and lower ends of the gear rod; the two linkage rods are respectively provided at the two ends of the two liquid inlet rods, and the linkage rod can push the liquid inlet rod to move toward the direction of the circulation pipe when moving.

[0016] Furthermore, the pH value control method of the reactor includes:

[0017] Step 1: obtaining a first real-time pH value of the reaction liquid in the circulation tube, comparing the first real-time pH value with a preset pH value range, determining whether the first real-time pH value is within the preset pH value range, and obtaining a first comparison result;

[0018] Step 2: When it is determined, based on the first comparison result, that the first real-time pH value is not within the preset pH value range, starting a pH adjustment program, and in response to the pH adjustment program, determining whether the first real-time pH value is too high or too low, thereby obtaining a second comparison result;

[0019] Step 3: according to the second comparison result, starting an acid addition procedure or an alkali addition procedure to add acid or alkali into the circulation pipe;

[0020] Step 4: When adding acid or alkali, obtain the second real-time pH value of the reaction liquid in the circulation tube at multiple time points, calculate the pH value change rate based on the multiple second real-time pH values, and calculate the advance time n based on the second real-time pH value and the pH value change rate; stop adding the acid or alkali solution before the preset completion time by the advance time n.

[0021] Furthermore, in step three, the adding of acid or alkali solution into the circulation pipe comprises:

[0022] Obtaining a deviation value between the first real-time pH value and the preset pH value range;

[0023] According to the deviation value, the opening size of the liquid inlet in the pH adjustment mechanism and the delivery power of the peristaltic pump are adjusted, and the liquid inlet rate of the acid or alkali solution is adjusted to carry out liquid inlet.

[0024] The amino acid chelate reactor disclosed in the present invention can fully drive the upper and lower mixing of the reaction liquid inside the reactor through the arrangement of the circulation mechanism, and at the same time cooperate with the pH adjustment mechanism to add acid or alkali from the circulation pipe to adjust the pH value of the reaction liquid. When the acid or alkali is added, it is first preliminarily mixed in the circulation pipe and then enters the interior of the kettle for stirring and mixing, which can ensure the uniformity of the addition of the acid and alkali and the accuracy of the pH value detection. At the same time, the pH detection probe is installed inside the circulation pipe, which avoids locality during detection and the phenomenon of uneven detection caused by uneven mixing compared with the existing technology, and accurately obtains the pH value of the reactant.

[0025] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 A schematic structural diagram of an embodiment of the present invention;

[0028] Figure 2 A schematic diagram of a liquid adding unit in one embodiment of the present invention;

[0029] Figure 3 This is a schematic structural diagram of a positioning cylinder in one embodiment of the present invention;

[0030] Figure 4 This is a schematic structural diagram of a locking plate in one embodiment of the present invention;

[0031] Figure 5 A schematic diagram of a liquid inlet in one embodiment of the present invention;

[0032] Figure 6 Schematic diagram of the structure of a driving member in one embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 1. Base; 2. Kettle body; 3. Support frame; 4. pH detection probe; 5. Circulation pipe; 51. Power pump; 52. Liquid inlet pipe; 53. Liquid outlet pipe; 6. Liquid adding unit; 61. Positioning cylinder; 62. Liquid inlet rod; 63. Liquid inlet port; 64. Return spring; 65. Slot; 66. Locking cylinder; 67. Locking plate; 68. Limiting groove; 7. Driving part; 71. Driving motor; 72. Worm; 73. Turbine; 74. Gear rod; 75. Linkage rod; 8. Acid storage chamber; 9. Alkali storage chamber; 10. Peristaltic pump; 11. Telescopic hose. DETAILED DESCRIPTION

[0035] The following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0036] In order to enable those skilled in the art to better understand the solutions of the present invention, 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. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0037] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate for the embodiments of the present invention described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices; "fixed" or "fixed connection" generally refers to common mechanical connection methods, such as threaded connection, welding or bonding.

[0038] In the prior art, it is necessary to adjust the pH value in the reaction equipment during the reaction to control the metal chelation reaction within the weakly acidic to neutral range. Therefore, it is necessary to set a pH adjustment device on the reaction equipment. When the current reaction equipment adjusts the pH, the acid or alkali solution is usually added directly from the upper end of the reaction equipment to the reaction equipment and then stirred evenly by a stirring unit. However, the direct addition of the acid and alkali solution can easily lead to uneven mixing of the acid and alkali solution with the solution in the reaction, affecting the detection of the pH value, thereby causing the acid and alkali solution to be added incorrectly, affecting the reaction of the material; at the same time, the pH detection probe in the reaction equipment is installed inside the reaction equipment, but due to the large internal space of the reaction equipment, when the acid and alkali solution is added and stirred unevenly, only the pH value of the solution at a local position can be detected, resulting in the inability to accurately obtain the pH value of the reactants in the reaction equipment.

[0039] The present invention provides an amino acid chelate reactor, such as Figure 1 As shown, in this embodiment, the reactor includes a base 1 and a kettle body 2 arranged on the base 1; a universal wheel is provided at the bottom of the base 1 to facilitate the movement of the reactor as a whole, a stirring mechanism is provided inside the kettle body 2 to stir the reaction liquid, and a water bath temperature control mechanism is provided outside the kettle body 2 to control the temperature inside the kettle body 2; a circulation mechanism is provided on one side of the kettle body 2, and the circulation mechanism can transport the bottom of the kettle body 2 to the upper end of the kettle body 2, and during the reaction process, the reaction liquid at the bottom of the kettle body 2 is transported back to the upper end for mixing reaction, thereby improving the uniformity of mixing and ensuring sufficient reaction; in order to be able to adjust The pH value of the reaction liquid in the kettle body 2 is adjusted by a pH regulating mechanism on the base 1. The pH regulating mechanism can add acid or alkali solution into the circulation pipe 5. Acid or alkali solution is added to the circulating reaction liquid, mixed with the reaction liquid in the circulation pipe 5 in the circulation pipe 5 and then enters the kettle body 2. A pH detection mechanism is provided in the circulation pipe 5. The pH detection mechanism is configured as a pH detection probe 4, and the pH detection probe 4 is configured as a plurality of probes arranged at different heights in the circulation pipe 5, which can avoid affecting the detection structure when an individual pH detection probe 4 fails.

[0040] Regarding the circulation mechanism, the circulation mechanism is provided with a power pump 51, a liquid inlet pipe 52, a liquid outlet pipe 53 and a circulation pipe 5; the liquid inlet pipe 52 is connected to the bottom of the kettle body 2 and the side of the circulation pipe 5, and the liquid outlet pipe 53 is connected to the top of the kettle body 2 and the side of the circulation pipe 5. The power pump 51 is used as a power to drive the reaction liquid at the bottom of the kettle body 2 into the circulation pipe 5, and is transported in the circulation pipe 5 until it is discharged back into the kettle body 2 from the upper end of the kettle body 2; a one-way valve is provided on both the liquid inlet pipe 52 and the liquid outlet pipe 53, which is opened during the circulation operation; the openings at both ends of the circulation pipe 5 are connected to the pH adjustment mechanism, for adding acid and alkali respectively, and the pH value of the reaction liquid is adjusted by adding acid or alkali; the acid can be set to dilute hydrochloric acid, dilute sulfuric acid, etc.; the alkali can be set to sodium hydroxide, ammonia water, etc.; the upper and lower ends of the circulation pipe 5 are respectively provided with acid and alkali to be added into the circulation pipe 5 to mix with the reaction liquid flowing in the circulation pipe 5.

[0041] In addition, in order to be able to disassemble and repair the circulation pipe 5 as a whole, the liquid inlet pipe 52 and the liquid outlet pipe 53 are set to be detachably connected to the kettle body 2. The specific detachable connection method is the connection method between normal pipelines and will not be repeated here.

[0042] The present invention can fully drive the upper and lower mixing of the reaction liquid inside the reactor through the setting of the circulation mechanism, and at the same time cooperate with the pH adjustment mechanism to add acid or alkali from the circulation pipe 5 to adjust the pH value of the reaction liquid. When the acid or alkali is added, it is first preliminarily mixed in the circulation pipe 5 and then enters the kettle body 2 for stirring and mixing, which can ensure the uniformity of the addition of the acid and alkali, and ensure the accuracy of the pH value detection; at the same time, the pH detection probe 4 is installed inside the circulation pipe 5. Compared with the existing technology, it avoids locality during detection and avoids the phenomenon of uneven detection caused by uneven mixing, so as to accurately obtain the pH value of the reactant.

[0043] It should be noted that when the pH value is detected by the pH detection probe 4, the pH value in the circulation pipe 5 is intermittently detected; when no alkali solution and acid solution are added, the different pH values ​​detected multiple times indicate that the reaction liquid is not evenly mixed; compared with the setting method of setting the pH detection probe 4 in the kettle body 2 for detection, the turbulence of the detection probe inside the kettle body 2 can be reduced, and there is no need to set multiple detection points in the kettle body 2. It is only necessary to detect the fluid passing through the circulation pipe 5, which is more convenient.

[0044] Regarding the pH adjustment mechanism, such as Figure 1 and Figure 2As shown, the pH adjustment mechanism is configured as a support frame 3, an acid storage chamber 8, an alkali storage chamber 9 and a driving component. The acid storage chamber 8 and the alkali storage chamber 9 are respectively opened at the upper and lower ends of the support frame 3, and a peristaltic pump 10 is provided at the output end of the acid storage chamber 8 and the alkali storage chamber 9 as a conveying power; the acid storage chamber 8 and the alkali storage chamber 9 respectively store acid and alkali; and a liquid adding port is provided on the acid storage chamber 8 and the alkali storage chamber 9 for adding acid and alkali to the acid storage chamber 8 and the alkali storage chamber 9.

[0045] Among them, the driving component is configured as a driving part 7 and a liquid adding unit 6, and the upper and lower openings of the circulation pipe 5 are provided with liquid adding units 6 for liquid adding work. The two liquid adding units 6 are respectively connected to the peristaltic pump 10 through a telescopic hose 11, and the acid storage chamber 8 and the alkali solution storage chamber 9 are respectively connected to a peristaltic pump 10, and when working, only one of the two peristaltic pumps 10 works, that is, only acid solution or alkali solution can be added, and both cannot be added at the same time.

[0046] The liquid adding unit 6 is specifically configured as a positioning cylinder 61 and a liquid inlet rod 62; the positioning cylinder 61 is inserted into the opening of the circulation pipe 5, mainly serving as a limit for the movement of the liquid inlet rod 62; the outer wall of the positioning cylinder 61 is in close contact with the inner wall of the circulation pipe 5 and a sealing ring is provided to prevent leakage; the two ends of the positioning cylinder 61 are opened for the liquid inlet rod 62 to be inserted into the interior of the circulation pipe 5, the outer wall of the liquid inlet rod 62 is in close contact with the inner wall of the positioning cylinder 61, and the liquid inlet rod 62 can slide relative to the positioning cylinder 61; a flow channel is provided inside the liquid inlet rod 62 for the alkali solution or acid solution entering the telescopic hose 11 to flow, one end of the liquid inlet rod 62 is connected to the telescopic hose 11, and the other end is closed; the liquid inlet A liquid inlet 63 is provided at a position near the bottom of the side of the rod 62, and the liquid inlet 63 is connected to the flow channel; a pressure plate is provided at the end of the liquid inlet rod 62 away from the circulation pipe 5, that is, the end close to the telescopic hose 11, and the telescopic hose 11 passes through the pressure plate and is connected to the liquid inlet rod 62; a return spring 64 is provided between the pressure plate and the positioning cylinder 61, and the return spring 64 is sleeved on the outside of the liquid inlet rod 62; in the absence of external force, the return spring 64 drives the liquid inlet rod 62 away from the circulation pipe 5, and the liquid inlet 63 is sealed by the positioning cylinder 61; under the external force of the driving member 7, the spring force is overcome and the liquid inlet rod 62 is driven to move toward the circulation pipe 5, and the liquid inlet 63 is opened.

[0047] In order to control the opening and closing size of the liquid inlet 63, and thus control the addition rate of the acid and alkali solution; Figure 5 As shown, the liquid inlet 63 is set to a long strip structure, and the opening size of the liquid inlet 63 is controlled by the moving distance of the liquid inlet rod 62 pushed by the driving member 7; and the delivery power of the peristaltic pump 10 is matched with the opening and closing size of the liquid inlet 63. When the opening of the liquid inlet 63 increases, the delivery power of the peristaltic pump 10 becomes larger.

[0048] In order to be able to remove the positioning cylinder 61 and the liquid inlet rod 62 together; by setting a locking unit, the positioning cylinder 61 is detachably mounted on the circulation pipe 5; Figure 3 and Figure 4 As shown, the locking unit includes a locking cylinder 66 and a slot 65. The slot 65 is annularly opened at the top of the positioning cylinder 61. The locking cylinder 66 can be inserted into the slot 65 from the upper end of the positioning cylinder 61, and a rotating portion is provided on the top of the locking cylinder 66 for manual rotation; a locking piece 67 is provided on the outer wall of the locking cylinder 66, and the locking blocks are provided in at least two pieces and are evenly arranged on the outer wall of the locking cylinder 66. The locking piece 67 is rotatably mounted on the locking cylinder 66 by a rotating shaft, and a torsion spring is provided on the rotating shaft, which drives the locking piece 67 to rotate toward the side away from the locking cylinder 66; a slot is provided on the positioning cylinder 61 for the locking piece 67 to pass through to the limiting groove 68 The locking cylinder 66 is rotated to the position of the locking piece 67 corresponding to the notch, and the locking piece 67 passes through the notch to the limiting groove 68 under the action of the torsion spring, and the installation is completed by limiting the passing locking piece 67; continue to rotate the locking cylinder 66 until the locking piece 67 is misaligned with the notch, and the locking piece 67 is received in the inner side of the positioning cylinder 61 and disengaged from the limiting groove 68, and the positioning cylinder 61 is no longer limited, and the positioning cylinder 61 and the liquid inlet rod 62 can be directly taken out; through the setting of the locking unit, the positioning cylinder 61 and the liquid inlet rod 62 can be installed and disassembled as a whole by rotating the locking cylinder 66, and maintenance is convenient.

[0049] Regarding the driving member 7, as Figure 1 and Figure 6 As shown, the driving member 7 is provided with a driving motor 71, a worm 72, a turbine 73, a gear rod 74 and a linkage rod 75; the driving motor 71 is mounted on the side of the support frame 3, the worm 72 is rotatably mounted on the support frame 3, the output shaft of the driving motor 71 is connected to the worm 72 to drive the worm 72 to rotate; the turbine 73 is rotatably mounted on the support frame 3 through the rotating shaft, and the worm 72 is meshed with the worm 72 for transmission; the gear rod 74 is vertically mounted on the support frame 3, the gear rod 74 is perpendicular to the worm 72, and the gear rod 74 is slidably mounted on the support frame 3 through a sliding sleeve On the support frame 3, the sliding sleeve limits the movement of the gear rod 74. The gear rod 74 is only provided with teeth at both ends, and the middle part is provided in the sliding sleeve. The gear rod 74 is limited by the sliding sleeve to only be able to move up and down; the linkage rod 75 is provided with two respectively fixed at the upper and lower ends of the gear rod 74; the two linkage rods 75 are respectively provided at the two ends of the two liquid inlet rods 62 and one side is in contact with the pressure plate on the liquid inlet rod 62. The linkage rod 75 can push the liquid inlet rod 62 to move closer to the circulation pipe 5 when moving, thereby opening the liquid inlet 63 to add acid and alkali solution.

[0050] The working principle of the present invention is as follows: when the reaction is carried out, the power pump 51 is started to drive the reaction liquid in the kettle body 2 to be transported and circulated, and the pH value of the reaction liquid passing through the circulation pipe 5 is detected by the pH detection probe 4 in the circulation pipe 5. When the pH value exceeds the preset range (the pH value of the reaction liquid in this embodiment is stable at weak acid to neutral pH 5.0-7.0), when it is detected that the reaction liquid is alkaline, the motor is started to drive the worm 72 to rotate, and the gear rod 74 is driven downward by the transmission of the turbine 73. The gear rod 74 moves downward and drives the pressure plate and the liquid inlet rod 62 at the upper end of the circulation pipe 5 to move downward. At this time, the peristaltic pump 10 of the acid storage chamber 8 is started, the liquid inlet rod 62 moves downward, and the liquid inlet port 63 is opened. The acid is transported from the acid storage chamber 8 to the flow channel of the liquid inlet rod 62, and enters the circulation pipe 5 from the liquid inlet port 63. The acid is preliminarily mixed with the reaction liquid in the circulation pipe 5 and then enters the kettle The interior of the body 2 is stirred and fully mixed by the stirring mechanism, and the circulation work continues. When the pH detection probe 4 in the circulation pipe 5 detects that the pH value of the reaction liquid is within the normal range, the drive motor 71 flips over to reset, and the pressure plate and the liquid inlet rod 62 are reset under the action of the reset spring 64, and the liquid inlet 63 is closed, and the further addition of the acid solution is stopped; similarly, when it is detected that the reaction liquid is acidic, the worm 72 is driven to reverse, and the gear rod 74 is driven to move upward, driving the pressure plate and the liquid inlet rod 62 at the lower end of the circulation pipe 5 to move upward to add the alkali solution.

[0051] In this embodiment, a pH value control method of the above-mentioned reactor is also disclosed, and the pH value control method includes:

[0052] Step 1: Obtain a first real-time pH value of the reaction liquid in the circulation pipe 5 through the pH detection probe 4 in the circulation pipe 5, compare the first real-time pH value with a preset pH value range, determine whether the first real-time pH value is within the preset pH value range, and obtain a first comparison result; in this embodiment, the preset pH value range of the reaction liquid is pH 5.0-7.0;

[0053] Step 2: According to the first comparison result, when the first real-time pH value is within the preset pH value range, it indicates that the pH value of the reaction solution is in a stable state and does not need to be adjusted; when it is determined that the first real-time pH value is not within the preset pH value range, it indicates that the reaction solution is acidic or alkaline and needs to be adjusted, and the pH adjustment program is started, and the pH adjustment mechanism is started. In response to the pH adjustment program, it is first determined whether the first real-time pH value is high or low, and a second comparison result is obtained; that is, when the first real-time pH value is less than the preset pH value range, the second comparison result is that the reaction solution is acidic, and when the first real-time pH value is greater than the preset pH value range, the second comparison result is that the reaction solution is alkaline;

[0054] Step 3: Based on the second comparison result, the acid solution adding program or the alkali solution adding program is started to add the acid solution or the alkali solution into the circulation pipe 5; specifically, when the second comparison result shows that the reaction solution is acidic, the alkali solution adding program is started to add the alkali solution into the circulation pipe 5; when the second comparison result shows that the reaction solution is alkaline, the alkali solution adding program is started to add the acid solution into the circulation pipe 5;

[0055] Step 4. When adding acid or alkali, obtain the second real-time pH value of the reaction liquid in the circulation tube 5 at multiple time points, calculate the pH value change rate based on the multiple second real-time pH values, and calculate the advance time n based on the second real-time pH value and the pH value change rate; stop adding the acid or alkali solution before the preset completion time by the advance time n.

[0056] In this embodiment, step 4 is described in detail, and the pH values ​​of the reaction liquid at multiple time points when the acid solution and the alkali solution are added are obtained. The time intervals of the multiple time points are controlled to be the same, which is generally set to 5-10 seconds according to the volume of the reactor. The same time interval facilitates the calculation of the pH value change rate. Before calculating the pH value change rate, the pH change value is first calculated, pH change value = pH value at the current time point - pH value at the previous time point, and the average value of multiple pH change values ​​is taken during the calculation; pH value change rate = pH value change value / time interval; since the liquid inflow rate of the acid solution and the alkali solution remains unchanged during the liquid inflow process, the time when the pH value of the reaction liquid reaches the preset pH value range can be calculated based on the current pH change rate (the range is not used for calculation, and the middle value of the preset pH value range, i.e., pH 6.0, is taken for calculation); a time point N is taken, and the time from the time point N to the time when the pH value of the reaction liquid reaches To the completion time point M within the preset pH value range, the completion time point M is the above-mentioned preset completion time. When the time reaches the completion time point M, the pH value of the reaction liquid detected in the circulation pipe 5 has reached the preset pH value range; since the addition of acid or alkali solution needs to be mixed in the kettle body 2 and then enters the circulation pipe 5 to detect the pH value, stopping the liquid injection when the time point M is reached will cause excessive injection of acid or alkali solution. Therefore, in this embodiment, time n is set, and the time n is used to stop the addition of acid or alkali solution in advance of the completion time point M, that is, M-n is the stop time point of the peristaltic pump 10; in this embodiment, time n is generally 5-20 seconds, that is, the delivery of acid and alkali solution is stopped 5-20 seconds in advance. The specific time n varies according to the delivery rate of acid and alkali solution, the delivery rate of reaction liquid, etc. This range is only the time range in the current embodiment and is not limited to this.

[0057] By setting the above-mentioned control method, the addition of acid or alkali solution can be turned off in advance to ensure the stable regulation of the pH value of the reaction liquid, and avoid the phenomenon of excessive addition caused by stopping the addition of acid or alkali solution when the pH value is detected to be normal. The stop time of the peristaltic pump 10 can be preset in advance to reduce subsequent control response steps.

[0058] In this embodiment, before adding acid or alkali solution to the circulation pipe 5, the deviation value between the first real-time pH value and the preset pH value range is first obtained; when calculating the deviation value, the middle value of the preset pH value range, i.e. pH 6.0, is taken for calculation to avoid the phenomenon that only the edge value of the preset pH value range is adjusted when adjusting the pH value, resulting in the need for frequent adjustment; then, the opening size of the liquid inlet 63 in the pH adjustment mechanism and the delivery power of the peristaltic pump 10 are adjusted according to the deviation value, and the liquid inlet rate of the acid or alkali solution is adjusted to carry out liquid inlet; when the deviation value is large, it is transported at a high delivery power, and the larger liquid inlet 63 is opened to ensure the liquid inlet amount, so that the acid and alkali solution can be transported at a high delivery power. It can enter the circulation pipe 5 quickly and in large quantities for adjustment, quickly adjust the pH value of the reaction liquid, and avoid the generation of by-products; it should be noted that in this embodiment, high-speed acid and alkali liquid feeding is not always used because it is necessary to ensure sufficient liquid feeding time. Liquid feeding in a dispersed form can ensure sufficient uniformity, sufficient adjustment and mixing, and avoid large amounts of accumulation that cannot be mixed evenly in time; and when the pH value deviation is large, by-products may appear, so this emergency strategy is adopted, and the delivery rate and the opening and closing size of the liquid inlet 63 are also adjusted according to the deviation amount, that is, the larger the deviation amount, the faster the acid or alkali liquid feeds, so as to avoid the generation of by-products.

[0059] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. An amino acid chelate reactor, characterized in that: The invention comprises a base (1) and a kettle body (2) arranged on the base (1); a circulation mechanism is arranged on one side of the kettle body (2), and the circulation mechanism can transport the bottom of the kettle body (2) to the upper end of the kettle body (2); the circulation mechanism at least comprises a circulation pipe (5) arranged on one side of the kettle body (2), and a pH detection mechanism is arranged in the circulation pipe (5); a pH adjustment mechanism is arranged on the base (1), and the pH adjustment mechanism can add acid and alkali solutions into the circulation pipe (5).

2. The amino acid chelate reactor according to claim 1, characterized in that: The circulation mechanism comprises a power pump (51), a liquid inlet pipe (52), a liquid outlet pipe (53) and the circulation pipe (5); the liquid inlet pipe (52) is connected to the bottom of the kettle body (2) and the side of the circulation pipe (5), and the liquid outlet pipe (53) is connected to the top of the kettle body (2) and the side of the circulation pipe (5); the two ends of the circulation pipe (5) are connected to the pH adjustment mechanism for adding acid and alkali respectively.

3. The amino acid chelate reactor according to claim 1, characterized in that: The pH regulating mechanism comprises a support frame (3), an acid storage chamber (8) and an alkaline storage chamber (9) respectively arranged at the upper and lower ends of the support frame (3), and a driving assembly; the acid storage chamber (8) and the alkaline storage chamber (9) respectively store acid and alkaline; and the driving assembly is used to transport the acid and alkaline in the acid storage chamber (8) and the alkaline storage chamber (9) to the interior of the circulation pipe (5).

4. The amino acid chelate reactor according to claim 3, characterized in that: The driving assembly comprises a driving member (7) and a liquid adding unit (6). The liquid adding units (6) are provided at both end openings of the circulation pipe (5). The two liquid adding units (6) are connected to the acid storage chamber (8) and the alkali storage chamber (9) respectively through a peristaltic pump (10) and a telescopic hose (11). The driving member (7) drives the liquid adding units (6) to transport the acid or alkali into the circulation pipe (5).

5. The amino acid chelate reactor according to claim 4, characterized in that: The liquid adding unit (6) comprises a positioning cylinder (61) and a liquid inlet rod (62); the positioning cylinder (61) is inserted into the opening of the circulation pipe (5); the openings at both ends of the positioning cylinder (61) are for the liquid inlet rod (62) to be inserted, and the outer wall of the liquid inlet rod (62) is in contact with the inner wall of the positioning cylinder (61); one end of the liquid inlet rod (62) is in communication with the telescopic hose (11); A liquid inlet (63) is provided on the side of the liquid inlet rod (62); a pressure plate is provided at one end of the liquid inlet rod (62) away from the circulation pipe (5); a return spring (64) is provided between the pressure plate and the positioning cylinder (61), and the return spring (64) is sleeved on the outside of the liquid inlet rod (62).

6. The amino acid chelate reactor according to claim 5, characterized in that: The liquid inlet (63) is in the form of a long strip and is opened on the liquid inlet rod (62), and the size of the opening is controlled by the positioning cylinder (61).

7. The amino acid chelate reactor according to claim 5, characterized in that: The positioning cylinder (61) is detachably mounted on the circulation pipe (5) via a locking unit; the locking unit comprises a locking cylinder (66) and a slot (65); the slot (65) is provided on the positioning cylinder (61) for the locking cylinder (66) to be inserted into; The inner wall of the circulation pipe (5) is provided with a limiting groove (68), the outer wall of the locking cylinder (66) is provided with a locking piece (67), the locking piece (67) is rotatably mounted on the locking cylinder (66) via a rotating shaft, and a torsion spring is provided on the rotating shaft; the positioning cylinder (61) is provided with a notch for the locking piece (67) to pass through the limiting groove (68).

8. The amino acid chelate reactor according to any one of claims 5 to 7, characterized in that: The driving member (7) comprises a driving motor (71), a worm (72), a turbine (73), a gear (74) and a linkage rod (75); the driving motor (71) is mounted on the support frame (3) and connected to the worm (72) to drive the worm (72) to rotate; the turbine (73) is rotatably mounted on the support frame (3) via a rotating shaft and meshes with the worm (72) for transmission; The gear rod (74) is vertically mounted on the support frame (3), and the gear rod (74) is slidably arranged on the support frame (3) through a sliding sleeve; the linkage rod (75) is provided as two linkage rods respectively fixed at the upper and lower ends of the gear rod (74); the two linkage rods (75) are respectively arranged at the two ends of the two liquid inlet rods (62), and the linkage rod (75) can push the liquid inlet rod (62) to move toward the circulation pipe (5) when moving.

9. The amino acid chelate reactor according to claim 1, characterized in that: The pH value control method of the reactor comprises: Step 1: obtaining a first real-time pH value of the reaction liquid in the circulation pipe (5), comparing the first real-time pH value with a preset pH value range, determining whether the first real-time pH value is within the preset pH value range, and obtaining a first comparison result; Step 2: When it is determined, based on the first comparison result, that the first real-time pH value is not within the preset pH value range, starting a pH adjustment program, and in response to the pH adjustment program, determining whether the first real-time pH value is too high or too low, thereby obtaining a second comparison result; Step 3, starting an acid solution adding procedure or an alkali solution adding procedure according to the second comparison result, and adding acid solution or alkali solution to the circulation pipe (5); Step 4, when adding acid or alkali, obtaining the second real-time pH value of the reaction liquid in the circulation pipe (5) at multiple time points, calculating the pH value change rate based on the multiple second real-time pH values, calculating the advance time n based on the second real-time pH value and the pH value change rate; and stopping the addition of acid or alkali before the preset completion time by the advance time n.

10. The amino acid chelate reactor according to claim 9, characterized in that: In step 3, the adding of acid or alkali solution into the circulation pipe (5) comprises: Obtaining a deviation value between the first real-time pH value and the preset pH value range; The opening size of the liquid inlet (63) in the pH regulating mechanism and the delivery power of the peristaltic pump (10) are adjusted according to the deviation value, and the liquid inlet rate of the acid solution or the alkali solution is adjusted to carry out liquid inlet.

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