A crystallization tank for calcium gluconate crystal production and its use method

Abstract

The present invention relates to the field of calcium gluconate evaporation crystallization equipment, in particular to a crystallization tank for calcium gluconate crystallization production and a use method thereof, comprising an evaporation crystallization tank, wherein the evaporation crystallization tank comprises a tank body, an inner side of the tank body is provided with a stirring and evenly heating component, one side of the stirring and evenly heating component is installed with an adaptability adjustment component, and the middle part of the tank body is provided with a crystal transfer component; the stirring and evenly heating component is used to stir the solution to be crystallized in the tank body so that the heat is evenly distributed; the adaptability adjustment component is used to adaptively adjust the stirring and evenly heating component according to the evaporation progress; the crystal transfer component is used to transfer and protect precipitated crystals. The present invention can prevent the situation in which crystals continue to accumulate at the bottom of the tank body and become high in the later stage, which is likely to affect the stirring work, and can also effectively reduce the situation in which crystals easily collide with a stirring component as the solution flows, resulting in crystal breakage.

Description

Technical Field

[0001] The invention relates to the field of calcium gluconate evaporation crystallization equipment, in particular to a crystallization tank for calcium gluconate crystallization production and a use method thereof. Background Art

[0002] In the evaporation crystallization production of calcium gluconate API, traditional processes often suffer from problems such as irregular crystal morphology, low purity, high breakage rate, and low production efficiency due to local overheating, uneven stirring, and inadequate crystal management. Traditional equipment easily causes local overheating at the edges and bottom of the solution during heating, leading to rapid evaporation of the solvent and excessive supersaturation, which causes the explosive generation of tiny crystal nuclei and the formation of deformed crystals. High temperature can also cause solute decomposition and reduce purity. Fixed-height single-layer stirring paddles cannot be dynamically adjusted with the liquid level, which can easily cause temperature differences between the upper and lower layers of solution and blind spots at the edges, exacerbating uneven crystallization. Crystals easily accumulate at the bottom of the deposition tank, affecting stirring and breaking due to collisions. Crystals on the inner wall also require frequent manual cleaning, increasing labor intensity and the risk of impurities. Although existing technologies have attempted to optimize the process by adding seed crystals, they have not fundamentally solved the problems of dynamic temperature control and stirring. Therefore, we propose a crystallization tank for calcium gluconate crystallization production and a method for its use to address the above-mentioned problems. Summary of the Invention

[0003] The present invention aims to solve the shortcomings in the background technology and provide a crystallizing tank for producing calcium gluconate crystals and a method for using the same.

[0004] To achieve the above object, the technical solution adopted by the present invention is as follows: a crystallization tank for calcium gluconate crystallization production, comprising an evaporation crystallization tank, the evaporation crystallization tank comprising a tank body, an inner side of the tank body is provided with a stirring and uniform heating component, one side of the stirring and uniform heating component is installed with an adaptive adjustment component, and a crystal transfer component is provided in the middle of the tank body;

[0005] The stirring and heat uniforming component is used to stir the solution to be crystallized inside the tank body so that the heat is evenly distributed;

[0006] The adaptive adjustment component is used to adaptively adjust the stirring and uniform heating component according to the evaporation progress;

[0007] The crystal transfer assembly is used to transfer and protect the precipitated crystals;

[0008] The crystal transfer assembly includes a hollow rotating rod, a suction plate is installed at the bottom of the hollow rotating rod, and the outer periphery of the suction plate is fixedly connected to evenly distributed collecting blades, the top of the hollow rotating rod is slidably connected to a rotating shaft, the lower part of the outer periphery of the rotating shaft is fixedly connected to a connecting disk 1, and the bottom of the connecting disk 1 is fixedly connected to a plurality of electric push rods, the upper part of the outer periphery of the hollow rotating rod is fixedly connected to a connecting disk 2, and the electric push rods are all fixedly connected to the connecting disk 2, the upper part of the outer periphery of the hollow rotating rod is fixedly connected to the chassis, the top of the chassis is fixedly connected to a material guide disk, a supporting cylinder is provided on the top of the chassis, and evenly distributed grid plates are installed at the lower part of the outer periphery of the supporting cylinder, scrapers are fixedly connected on both sides of the middle part of the outer periphery of the hollow rotating rod, and evenly distributed limit grooves are provided at the bottom of the chassis.

[0009] Preferably, the stirring and heat uniforming component includes multiple rotating racks, the bottom ends of the rotating racks are fixedly connected to sliders, the sliders are slidably connected to the inside of the limiting grooves, the limiting grooves are equipped with screws, the middle screws of the screws are threadedly connected to the sliders, the middle of the rotating racks are rotatably connected to the rotating sleeves, one side of the rotating sleeves is fixedly connected to the side plates, the upper and lower parts of the outer periphery of the rotating sleeves are equipped with impellers, the lower part of the outer periphery of the supporting cylinder is provided with evenly distributed rotating rings, and the outer periphery of the rotating rings is equipped with multiple stirring blades.

[0010] Preferably, the adaptive adjustment component includes a fixed frame, which is arranged on the side of the rotating sleeve close to the supporting tube, and is fixedly connected to the rotating frame. A sliding groove is provided in the middle of the fixed frame, and a threaded rod is provided inside the sliding groove. The ends of the threaded rod are fixedly connected to a sealed motor, and the sealed motor is installed inside the fixed frame. The outer periphery of the threaded rod is provided with evenly distributed thread segments, and a plurality of thread blocks are slidably connected to the inside of the threaded rod, and the thread blocks are threadedly connected to the threaded rod through the thread segments.

[0011] Preferably, a reduction motor is installed on the top of the rotating shaft, and the reduction motor is installed in the middle of the top end of the tank body.

[0012] Preferably, the two stirring blades are of segmented design, and the two stirring blades are slidably connected with the stirring blade one, and the ends of the stirring blades away from the rotating ring are installed with threaded blocks.

[0013] Preferably, a top seat is installed on the top of the tank body, a plurality of feed ports are provided on the top of the top seat, a discharge port is installed in the middle of the bottom end of the tank body, a heating cavity is provided at the lower part of the tank body wall, and circulation interfaces are installed on the upper part and one side of the bottom of the heating cavity.

[0014] Preferably, the connecting disk 1, the electric push rod and the connecting disk 2 are all arranged inside the top seat, and the connecting disk 2 and the hollow rotating rod are both slidably connected to the top seat.

[0015] Preferably, a gear ring is fixedly connected to the top of the supporting cylinder, a gear is meshedly connected to the upper inner side of the gear ring, a servo motor is fixedly connected to the middle shaft of the gear, and the gear ring, gear and servo motor are all installed inside the top seat.

[0016] Preferably, a control panel is installed at the front of the tank body, and the control panel is electrically connected to the stirring and uniform heating component, the adaptive adjustment component and the crystal transfer component. The control panel is used to control the stirring and uniform heating component, the adaptive adjustment component and the crystal transfer component.

[0017] Preferably, a method for using a crystallization tank for producing calcium gluconate crystals comprises the following steps:

[0018] S1. Equipment preparation and solution introduction

[0019] S1.1. Equipment initialization: Check the operating status of each component of the evaporation crystallization tank to ensure that it is well sealed and has no faults;

[0020] S1.2. Introducing the solution to be crystallized: injecting the calcium gluconate solution to be crystallized into the tank through the feed pipe on the top of the top seat;

[0021] S2, evaporation and concentration stage

[0022] S2.1. Heat medium circulation heating: Start the circulation pump and heater to introduce heat medium into the heating chamber. The heat medium circulation evenly heats the solution in the tank to achieve evaporation and concentration.

[0023] S2.2. Initial stirring and preventing local overheating: Start the reduction motor to drive the shaft to rotate, which in turn drives the hollow rotating rod to rotate through the connecting plate 1 and the electric push rod. This in turn drives the rotating frame to stir the solution through the chassis to ensure uniform heat distribution and avoid local overheating.

[0024] S2.3, screw adjustment of the turret position:

[0025] ①. At the beginning of evaporation, start the screw to make the slider drive the rotating frame to move toward the inner wall of the tank, so as to enhance the stirring of the edge solution and prevent the rapid evaporation of the edge solvent, which may lead to explosive nucleation and the formation of deformed crystals.

[0026] ②. When the temperature in the tank is balanced, the screw drives the rotating frame to retract, so that the first and second stirring blades maintain a safe distance from the inner wall of the tank to avoid excessive local flow rate or excessive solution fluctuations that may cause crystal breakage;

[0027] S2.4. Dynamic adjustment of stirring blade height: As evaporation progresses, the solution level drops, and the sealed motor is started to drive the threaded rod to rotate. The threaded section and the threaded block are linked to each other, so that stirring blades one and two move downward synchronously, always remaining in the solution, ensuring that solutions at different heights are evenly stirred and avoiding temperature differences between the upper and lower layers;

[0028] S3, crystallization management stage

[0029] S3.1. Collection and transfer of bottom crystals: After crystals begin to precipitate, the pump inside the extraction base is activated. The crystals deposited at the bottom of the tank are extracted through the hollow rotating rod and suction disc and transferred to the support cylinder. The solution then flows back to the tank through the grid plate to prevent crystal accumulation from affecting stirring and breaking.

[0030] S3.2, Anti-sticking and crystal scraping:

[0031] ① After the evaporation and crystallization are completed, the electric push rod drives the connecting plate 2 and the hollow rotating rod to descend, so that the bottom plate and the guide plate descend and the bottom opening of the supporting cylinder is opened.

[0032] ② Start the screw to expand the rotating frame outward, and the side plate contacts the inner wall of the tank; start the servo motor to drive the gear ring to rotate through the gear, so that the support cylinder rotates, and use the scraper to scrape off the crystals attached to the inner wall of the tank and the support cylinder;

[0033] S4. Discharging and equipment cleaning

[0034] S4.1. Crystal discharge: Open the discharge port at the bottom of the tank to allow the calcium gluconate crystals to be discharged through the discharge port; at the same time, the crystals in the support tube are discharged through the bottom opening simultaneously;

[0035] S4.2. Equipment cleaning: After one batch of production is completed and the discharge is completed, the tank body, stirring parts and supporting cylinder are cleaned to prepare for the next batch of production.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] 1. Through its innovative transmission design, the present invention precisely controls the horizontal displacement of the lead screw-driven slider and turret during the initial stage of evaporation and crystallization, bringing the turret close to the side wall of the tank. This structural design significantly enhances the agitation of the solution to be crystallized at the edge of the tank, rapidly transferring the heated solution at the edge of the tank to the center, and effectively suppressing local heat accumulation. This avoids a sharp increase in supersaturation due to rapid evaporation of the solvent in the edge solution, prevents the explosive generation of tiny crystal nuclei, and thus avoids deformed crystal growth, laying the foundation for the production of high-quality calcium gluconate.

[0038] 2. In this invention, once the internal temperature of the tank has become uniform, the screw starts up again, driving the rotating frame to retract to a suitable position, precisely controlling the stirring range of stirring blades 1 and 2. This design cleverly maintains a safe distance between the stirring components and the side walls of the tank, avoiding the generation of excess heat due to localized excessive flow rates and preventing drastic fluctuations in the solution that could break up precipitated crystals. This ensures a smooth and controllable crystallization process, improving the stability and reliability of the production process.

[0039] 3. As the evaporation and concentration process progresses, the sealed motor drives the threaded rod to rotate. Utilizing the principle of threaded transmission, the threaded block drives stirring blades 1 and 2, as well as the threaded rod, to rise and fall synchronously. In the early stages of evaporation, when the liquid level is high, the stirring blades can be precisely adjusted to the appropriate depth of the solution to achieve full and uniform stirring. As evaporation progresses, the liquid level drops, and the sealed motor continues to operate, dynamically adjusting the position of the stirring blades to keep them submerged in the solution. This adaptive adjustment mechanism not only improves the utilization rate of the stirring components, but also ensures that the solution is uniformly stirred at different liquid levels, eliminating the temperature difference between the upper and lower layers of the solution caused by uneven stirring, and creating an ideal environment for calcium gluconate crystallization.

[0040] 4. In the crystallization stage of the present invention, the pump body inside the extraction seat extracts the crystals deposited at the bottom of the tank body through the hollow rotating rod and the suction disc and transfers them to the supporting tube. The unique grid structure of the supporting tube realizes the separation function of crystal retention and solution reflux, effectively avoiding the accumulation of crystals at the bottom of the tank body affecting the stirring operation, and reducing the situation where the crystals are broken due to collision with the stirring components. After the evaporation crystallization is completed, the discharge port is opened to discharge the calcium gluconate crystals. The electric push rod drives the connecting disk 2, the hollow rotating rod and related components to descend, so that the bottom of the supporting tube opens and the internal crystals are smoothly discharged. In addition, the screw drives the rotating frame to expand outward so that the side plates fit the inner wall of the tank body. The servo motor drives the gear ring and the supporting tube to rotate through the gear transmission. The relative movement of the scraper and the supporting tube is used to efficiently remove the residual crystals on the inner wall of the tank body and the supporting tube, realizing the integrated operation of production, discharging and equipment cleaning, greatly improving production efficiency and equipment maintenance convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a schematic diagram of the front three-dimensional structure of a crystallization tank for calcium gluconate crystal production and a method of using the same;

[0042] Figure 2 This is a schematic diagram of the internal structure of a crystallization tank for calcium gluconate crystal production and a method for using the same;

[0043] Figure 3 This is a partial structural diagram of a suction plate of a crystallization tank for calcium gluconate crystal production and a method for using the same according to the present invention;

[0044] Figure 4This is a schematic diagram of the partial structure of the threaded rod of a crystallization tank for calcium gluconate crystal production and a method for using the same according to the present invention;

[0045] Figure 5 This is a schematic diagram of the partial structure inside the support cylinder of a crystallization tank for calcium gluconate crystal production and a method of using the same according to the present invention;

[0046] Figure 6 The present invention provides a schematic diagram of the partial structure of the tooth ring of a crystallization tank for producing calcium gluconate crystals and a method for using the same.

[0047] 1. Evaporation crystallization tank; 101. Tank body; 102. Top seat; 103. Control panel; 104. Reducer motor; 105. Grid plate; 106. Support cylinder; 107. Heating chamber; 108. Stirring blade 1; 109. Stirring blade 2; 110. Hollow rotating rod; 111. Discharge port; 112. Suction plate; 113. Collecting blade; 114. Side plate; 115. Rotating frame; 116. Fixed frame; 117 , impeller; 118, rotating sleeve; 119, slide; 120, limit groove; 121, chassis; 122, guide plate; 123, threaded rod; 124, threaded block; 125, scraper; 126, extraction seat; 127, gear ring; 128, connecting plate 2; 129, electric push rod; 130, connecting plate 1; 131, rotating shaft; 132, screw; 133, slider; 134, gear; 135, swivel. DETAILED DESCRIPTION

[0048] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0049] like Figures 1-6 A crystallization tank for calcium gluconate crystallization production shown in FIG, includes an evaporation crystallization tank 1, the evaporation crystallization tank 1 includes a tank body 101, an inner edge of the tank body 101 is provided with a stirring and uniform heating component, an adaptive adjustment component is installed on one side of the stirring and uniform heating component, a crystal transfer component is provided in the middle of the tank body 101, a control panel 103 is installed at the front of the tank body 101, the control panel 103 is electrically connected to the stirring and uniform heating component, the adaptive adjustment component and the crystal transfer component, the control panel 103 is used to control the stirring and uniform heating component, the adaptive adjustment component and the crystal transfer component, a top seat 102 is installed on the top of the tank body 101, a plurality of feed ports are provided on the top of the top seat 102, a discharge port 111 is installed in the middle of the bottom end of the tank body 101, a heating chamber 107 is provided on the lower part of the wall of the tank body 101, and a circulation interface is installed on the upper part and the bottom side of the heating chamber 107;

[0050] During specific implementation, people can achieve evaporation crystallization of calcium gluconate raw material through the evaporation crystallization tank 1 to prepare calcium gluconate crystals. People can introduce the solution to be crystallized into the interior of 11 through the feed pipe on the top of the top seat 102. After that, people can introduce heat medium into the heating chamber 107 through the circulation pump and the heater, and by circulating the heat medium, the solution to be crystallized inside the tank body 101 can be heated, thereby achieving evaporation and concentration of the solution to be crystallized.

[0051] The stirring and uniform heating component is used to stir the solution to be crystallized inside the tank 101 so that the heat is evenly distributed;

[0052] The adaptive adjustment component is used to adaptively adjust the stirring and uniform heating component according to the evaporation progress;

[0053] The crystal transfer component is used to transfer and protect the precipitated crystals;

[0054] The crystal transfer assembly includes a hollow rotating rod 110, a suction disc 112 is installed at the bottom of the hollow rotating rod 110, and the outer periphery of the suction disc 112 is fixedly connected to the uniformly distributed collecting blades 113, the top of the hollow rotating rod 110 is slidably connected to the rotating shaft 131, the top of the rotating shaft 131 is installed with a reduction motor 104, the reduction motor 104 is installed in the middle of the top of the tank body 101, the lower part of the outer periphery of the rotating shaft 131 is fixedly connected to a connecting plate 130, the top of the connecting plate 130 is installed with a wiring plate, and the wiring plate The input end is connected to an external power supply through a sealed rotary joint, and the output end of the wiring board is connected to an electric push rod 129, a servo motor, a sealed motor and a lead screw 132 through a special high-temperature corrosion-resistant wire to provide power for them. The wires are buried in the hollow rotating rod 110, the scraper 125, the rotating frame 115, the chassis 121 and the fixed frame 116 wall. The bottom of the connecting plate 130 is fixedly connected to multiple electric push rods 129, and the upper part of the outer periphery of the hollow rotating rod 110 is fixedly connected to the connecting plate 21. 28, the electric push rod 129 is fixedly connected to the connecting plate 2 128, the upper part of the outer periphery of the hollow rotating rod 110 is equipped with a material extraction seat 126, the lower part of the outer periphery of the hollow rotating rod 110 is fixedly connected to the chassis 121, the top of the chassis 121 is fixedly connected to the material guide plate 122, the top of the chassis 121 is provided with a supporting cylinder 106, the lower part of the outer periphery of the supporting cylinder 106 is equipped with evenly distributed grid plates 105, the middle part of the outer periphery of the hollow rotating rod 110 is fixedly connected to both sides of the scraper 125, the bottom of the chassis 121 is open There are evenly distributed limit grooves 120, and the connecting disk 130, the electric push rod 129 and the connecting disk 2 128 are all arranged inside the top seat 102. The connecting disk 2 128 and the hollow rotating rod 110 are both slidably connected to the top seat 102. The top of the supporting cylinder 106 is fixedly connected to the gear ring 127, and the upper inner part of the gear ring 127 is meshed with a gear 134. The middle shaft of the gear 134 is fixedly connected to the servo motor. The gear ring 127, the gear 134 and the servo motor are all installed inside the top seat 102;

[0055] Furthermore, in specific implementation, when crystals begin to precipitate, the work of the pump body inside the extraction seat 126 can extract the crystals deposited in the lower part of the tank body 101 through the hollow rotating rod 110 and the suction disc 112, and the solution close to the vicinity will be discharged into the inner side of the supporting tube 106 after being extracted, and the crystals can be received by the supporting tube 106, and the solution will flow out of the supporting tube 106 through the grid plate 105 to complete the reflux. By collecting and transferring the crystals deposited at the bottom of the tank body 101, it is possible to avoid the situation where the crystals continue to accumulate and become higher at the bottom of the tank body 101, which is easy to affect the stirring work in the later stage. At the same time, it can effectively reduce the situation where the crystals easily hit the stirring parts as the solution flows, causing the crystals to break, which is conducive to the continuous evaporation and crystallization work. After the evaporation and crystallization is completed, people can open the discharge port 111 to allow the calcium gluconate to The crystals can be discharged through the discharge port 111. At the same time, the operation of the electric push rod 129 can drive the connecting disk 2 128 and the hollow rotating rod 110 to descend, so that the chassis 121 and the guide disk 122 can be synchronously lowered, so that an opening appears at the bottom of the supporting cylinder 106, so that the calcium gluconate crystals inside the supporting cylinder 106 can be discharged through the opening, thereby realizing the extraction of the crystals. At this time, people can start the screw 132 and the servo motor, and the screw 132 can drive the rotating frame 115 to expand outward, so that the side plate 114 contacts the inner wall of the tank body 101, and the servo motor can drive the gear ring 127 to rotate through the gear 134, and further drive the supporting cylinder 106 to rotate, so that the supporting cylinder 106 can rotate relative to the scraper 125, so that the crystals on the inner wall of the tank body 101 and the supporting cylinder 106 can be scraped off, which is beneficial for practical use.

[0056] Among them, the stirring and uniform heating component includes multiple rotating racks 115, the bottom ends of the rotating racks 115 are fixedly connected with sliders 133, the sliders 133 are slidably connected to the inside of the limit grooves 120, and the inside of the limit grooves 120 are installed with screws 132. The driving motor can choose a small ball screw or a small T-shaped screw. The screws 132 are composed of a driving motor and a screw rod. The driving motors are installed inside the chassis 121. The middle screw rods of the screws 132 are threadedly connected to the sliders 133, and the middle of the rotating racks 115 are rotatably connected to the rotating racks 115. The movable sleeve 118 and the rotating sleeve 118 are fixedly connected to the side plate 114 on one side. The impeller 117 is installed on the upper and lower parts of the outer periphery of the rotating sleeve 118. The lower part of the outer periphery of the supporting cylinder 106 is sleeved with a uniformly distributed rotating ring 135. The outer periphery of the rotating ring 135 is installed with multiple stirring blades 109. The stirring blades 109 are all segmented. The stirring blades 108 are slidably connected between the two stirring blades 109. The end of the stirring blades 109 away from the rotating ring 135 is installed with a threaded block 124.

[0057] Furthermore, during specific implementation, people can start the reduction motor 104, which can drive the rotating shaft 131 to rotate through the reduction motor 104, and the rotating shaft 131 can use the connecting disk 130 and the electric push rod 129 to drive the hollow rotating rod 110 to rotate through the chassis 121 installed at the lower part of the outer periphery of the hollow rotating rod 110 to drive the rotating rack 115 inside the tank body 101 to rotate, and the rotating rack 115 can achieve mixing of the internal solution to be crystallized, and at the same time can make the heat of the solution to be crystallized more evenly distributed, which is beneficial to the evaporation and concentration of the solution to be crystallized, and at the same time can avoid the occurrence of uneven growth or reduced purity of the precipitated crystals caused by local overheating. During the evaporation and crystallization process, people can first start the screw 132, and drive the slider 133 and the rotating rack 115 to move through the screw 132, so that the rotating rack 115 as a whole can be close to the inner wall of the tank body 101, thereby enhancing the heat dissipation inside the tank body 101. The stirring effect of the solution to be crystallized at the edge makes it possible to quickly carry the heated solution to be crystallized away from the edge in the early stage of evaporation, thereby effectively avoiding heat accumulation of the solution to be crystallized at the edge, causing the solvent in the local area of ​​the solution to be crystallized to evaporate quickly to form an extremely high supersaturation, prompting a large number of tiny crystal nuclei to be generated instantly and explosively, resulting in some crystal faces of the crystal growing too fast to form deformed crystals, which is beneficial to the production of calcium gluconate. After that, when the temperature inside the tank body 101 reaches equilibrium, the screw 132 works again to drive the rotating frame 115 to retract, thereby controlling the stirring range of the stirring blade 108 and the stirring blade 2 109, thereby avoiding the stirring blade 108 and the stirring blade 2 109 from being too close to the inner edge of the tank body 101, maintaining a certain distance, avoiding being too close to the edge, resulting in excessive local flow rate and generation of excessive heat, and at the same time preventing the solution from being stirred too much, resulting in the rupture of the precipitated crystals, which is beneficial to practical use.

[0058] The adaptive adjustment assembly includes a fixing frame 116, which is arranged on the side of the rotating sleeve 118 close to the supporting cylinder 106. The fixing frames 116 are fixedly connected to the rotating frame 115. A sliding groove 119 is opened in the middle of the fixing frame 116. A threaded rod 123 is arranged inside the sliding groove 119. The ends of the threaded rod 123 are fixedly connected to the sealed motor. The sealed motor is installed inside the fixing frame 116. The outer periphery of the threaded rod 123 is provided with evenly distributed thread segments. A plurality of thread blocks 124 are slidably connected to the inside of the threaded rod 123. The thread blocks 124 are threadedly connected to the threaded rod 123 through the thread segments.

[0059] Furthermore, in the specific implementation, as the evaporation and concentration work proceeds, the sealing motor can start working, thereby driving the threaded rod 123 to rotate, and the threaded block 124 can be used to drive each stirring blade 108, stirring blade 2 109 and threaded rod 123 to move up and down through the threaded section on the threaded rod 123. In the initial stage, when the liquid level inside the tank body 101 is high, the stirring blade 108 and the stirring blade 2 109 are evenly adjusted inside the solution to ensure sufficient and uniform stirring of the solution. As the evaporation and crystallization work proceeds, the sealing motor is gradually started. The stirring blade 108 and the stirring blade 2 109 are adjusted downwards so that each stirring blade 108 and the stirring blade 2 109 can be kept in the solution for a long time, so that each stirring blade 108 and the stirring blade 2 109 can be fully utilized, and in this process, the stirring blade 108 and the stirring blade 2 109 can maintain a uniform spacing, so that the solution can be uniformly stirred at different heights, avoiding temperature differences between the upper and lower layers of solution due to uneven stirring of a single layer of blades, which is beneficial to the crystallization of calcium gluconate.

[0060] Among them, a method for using a crystallization tank for calcium gluconate crystal production includes the following steps:

[0061] S1. Equipment preparation and solution introduction

[0062] S1.1. Equipment initialization: Check the operating status of each component of the evaporation crystallization tank 1 to ensure that it is well sealed and has no faults;

[0063] S1.2, introduce the solution to be crystallized: inject the calcium gluconate solution to be crystallized into the tank 101 through the feed pipe on the top of the top seat 102;

[0064] S2, evaporation and concentration stage

[0065] S2.1. Heat medium circulation heating: Start the circulation pump and heater to introduce heat medium such as hot water or steam into the heating chamber 107. The heat medium circulation evenly heats the solution in the tank 101 to achieve evaporation and concentration.

[0066] S2.2. Initial stirring and preventing local overheating: Start the reduction motor 104 to drive the rotating shaft 131 to rotate, which in turn drives the hollow rotating rod 110 to rotate through the connecting plate 130 and the electric push rod 129. This in turn drives the rotating frame 115 to stir the solution through the chassis 121 to ensure uniform heat distribution and prevent local overheating.

[0067] S2.3, screw 132 adjusts the position of the rotating frame 115:

[0068] ① In the early stage of evaporation, the lead screw 132 is started to make the slider 133 drive the rotating frame 115 to move toward the inner wall of the tank 101, thereby enhancing the stirring of the edge solution and preventing the rapid evaporation of the edge solvent from causing explosive nucleation and the formation of deformed crystals.

[0069] ② When the temperature in the tank is balanced, the screw 132 drives the rotating frame 115 to retract, so that the stirring blades 108 and 109 maintain a safe distance from the inner wall of the tank body 101 to avoid excessive local flow rate or excessive solution fluctuations that may cause crystal breakage;

[0070] S2.4. Dynamic adjustment of the stirring blade height: As evaporation progresses, the solution level drops, and the sealed motor is started to drive the threaded rod 123 to rotate. The threaded section and the threaded block 124 are linked to each other, so that the stirring blades 108 and 109 move downward synchronously, always remaining in the solution, ensuring that the solutions at different heights are evenly stirred and avoiding temperature differences between the upper and lower layers;

[0071] S3, crystallization management stage

[0072] S3.1. Collection and Transfer of Bottom Crystals: After crystals begin to precipitate, the pump inside the extraction unit 126 is activated. The crystals deposited at the bottom of the tank 101 are extracted via the hollow rotating rod 110 and the suction plate 112 and transferred to the support cylinder 106. The solution then flows back to the tank 101 through the grid plate 105 to prevent crystal accumulation from affecting stirring and breaking.

[0073] S3.2, Anti-sticking and crystal scraping:

[0074] ① After the evaporation and crystallization are completed, the electric push rod 129 drives the connecting plate 2 128 and the hollow rotating rod 110 to descend, so that the bottom plate 121 and the guide plate 122 descend, and the bottom opening of the supporting cylinder 106 is opened.

[0075] ② Start the lead screw 132 to expand the rotating frame 115 outward, and the side plate 114 contacts the inner wall of the tank body 101; start the servo motor to drive the gear ring 127 to rotate through the gear 134, so that the support cylinder 106 rotates, and use the scraper 125 to scrape off the crystals attached to the inner wall of the tank body 101 and the support cylinder 106;

[0076] S4. Discharging and equipment cleaning

[0077] S4.1. Crystal discharge: Open the discharge port 111 at the bottom of the tank 101 to allow the calcium gluconate crystals to be discharged through the discharge port 111. Simultaneously, the crystals in the support cylinder 106 are discharged through the bottom opening.

[0078] S4.2. Equipment cleaning: After one batch of production is completed and the material is discharged, the tank body 101, the stirring component, and the supporting cylinder 106 are cleaned to prepare for the next batch of production.

[0079] Working principle:

[0080] In actual use, people can realize evaporation crystallization of calcium gluconate raw material through evaporation crystallization tank 1 to prepare calcium gluconate crystals. People can introduce the solution to be crystallized into 11 through the feed pipe on the top of the top seat 102. After that, people can introduce heat medium into the heating chamber 107 through the circulation pump and the heater, and heat the solution to be crystallized inside the tank body 101 by circulating the heat medium, so as to realize evaporation and concentration of the solution to be crystallized. In this process, people can start the reduction motor 104, and the reduction motor 104 can drive the rotating shaft 131 to rotate, and the rotating shaft 131 can use the connecting disk 130 and the electric push rod 129 to drive the hollow rotating rod 110 to rotate, and the hollow rotating rod 110 can be driven to rotate by the hollow rotating rod 110. The chassis 121 installed at the lower part of the periphery can drive the rotating rack 115 inside the tank body 101 to rotate. The rotating rack 115 can achieve mixing of the internal solution to be crystallized, and at the same time can make the heat of the solution to be crystallized more evenly distributed, which is beneficial to the evaporation and concentration of the solution to be crystallized, and at the same time can avoid the occurrence of uneven growth or purity reduction of the precipitated crystals caused by local overheating. In the process of evaporation and crystallization, people can first start the screw 132, and drive the slider 133 and the rotating rack 115 to move through the screw 132, so that the rotating rack 115 as a whole can be close to the inner wall of the tank body 101, thereby enhancing the stirring effect of the solution to be crystallized at the edge of the tank body 101, so that in the early stage of evaporation, the heated solution to be crystallized at the edge can be quickly The solution is brought away from the edge, thereby effectively avoiding the heat accumulation of the solution to be crystallized at the edge, causing the solvent in the local area of ​​the solution to be crystallized to evaporate quickly to form an extremely high supersaturation, prompting a large number of tiny crystal nuclei to be generated instantly and explosively, resulting in some crystal faces of the crystal growing too fast to form deformed crystals, which is beneficial to the production of calcium gluconate. After that, when the temperature inside the tank body 101 reaches equilibrium, the screw 132 works again to drive the rotating frame 115 to retract, thereby controlling the stirring range of the stirring blade 108 and the stirring blade 2 109, thereby avoiding the stirring blade 108 and the stirring blade 2 109 from being too close to the inner edge of the tank body 101, maintaining a certain distance, avoiding being too close to the edge, resulting in excessive local flow rate and excessive heat generation, and at the same time Preventing the solution from being stirred with excessive fluctuations, which may cause the precipitated crystals to break, is beneficial to practical use. During this process, as the evaporation and concentration work proceeds, the sealed motor can start working, thereby driving the threaded rod 123 to rotate, and the threaded block 124 can be used to drive each stirring blade 108, stirring blade 2 109 and threaded rod 123 to move up and down through the threaded section on the threaded rod 123. In the initial stage, when the liquid level inside the tank body 101 is high, the stirring blade 108 and the stirring blade 2 109 are evenly adjusted inside the solution to ensure sufficient and uniform stirring of the solution. As the evaporation and crystallization work proceeds, the sealed motor is gradually started to adjust the positions of the stirring blade 108 and the stirring blade 2 109 downward.The stirring blades 108 and 109 can be kept in the solution for a long time, so that the stirring blades 108 and 109 can be fully utilized, and the stirring blades 108 and 109 can maintain a uniform spacing during the process, so that the solution can be uniformly stirred at different heights, avoiding the temperature difference between the upper and lower layers of the solution caused by uneven stirring of the single-layer paddle, which is beneficial to the crystallization of calcium gluconate. When the crystals begin to precipitate, the material is pumped out from the inside of the material pump 126. The pump body can extract the crystals deposited in the lower part of the tank body 101 through the hollow rotating rod 110 and the suction disc 112. The solution close to the vicinity will be discharged into the inner side of the support tube 106 after being extracted. The support tube 106 can receive the crystals, and the solution will flow out of the support tube 106 through the grid plate 105 to complete the reflux. By collecting and transferring the crystals deposited at the bottom of the tank body 101, it can avoid the situation that the crystals continue to accumulate at the bottom of the tank body 101 and become high in the later stage, which is easy to affect the stirring work. At the same time, it can effectively The crystals are prevented from colliding with the stirring parts and causing crystal breakage as the solution flows, which is beneficial to the continuous progress of the evaporation crystallization work. After the evaporation crystallization is completed, people can open the discharge port 111 so that the calcium gluconate crystals can be discharged through the discharge port 111. At the same time, the electric push rod 129 can drive the connecting disk 128 and the hollow rotating rod 110 to descend, so that the bottom plate 121 and the guide plate 122 can be synchronously descended, so that an opening appears at the bottom of the supporting cylinder 106, so that the calcium gluconate inside the supporting cylinder 106 can be discharged. The crystals can be discharged through the opening, achieving the extraction of the crystals. At this time, people can start the screw 132 and the servo motor. The screw 132 can drive the rotating frame 115 to expand outward, so that the side plate 114 contacts the inner wall of the tank body 101. The servo motor can drive the gear ring 127 to rotate through the gear 134, further driving the support cylinder 106 to rotate, so that the support cylinder 106 can rotate relative to the scraper 125, thereby scraping off the crystals on the inner wall of the tank body 101 and the support cylinder 106, which is convenient for practical use.

[0081] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A crystallization tank for calcium gluconate crystallization production, comprising an evaporation crystallization tank (1), characterized in that: The evaporation crystallization tank (1) comprises a tank body (101), an inner edge of the tank body (101) is provided with a stirring and uniform heating component, an adaptive adjustment component is installed on one side of the stirring and uniform heating component, and a crystal transfer component is provided in the middle of the tank body (101); The stirring and uniform heating component is used to stir the solution to be crystallized inside the tank (101) so that the heat is evenly distributed; The adaptive adjustment component is used to adaptively adjust the stirring and uniform heating component according to the evaporation progress; The crystal transfer assembly is used to transfer and protect the precipitated crystals; The crystal transfer assembly includes a hollow rotating rod (110), a suction disc (112) is installed at the bottom of the hollow rotating rod (110), and the outer periphery of the suction disc (112) is fixedly connected to uniformly distributed collecting blades (113), the top of the hollow rotating rod (110) is slidably connected to a rotating shaft (131), the lower periphery of the rotating shaft (131) is fixedly connected to a connecting disc 1 (130), the bottom of the connecting disc 1 (130) is fixedly connected to a plurality of electric push rods (129), the upper periphery of the hollow rotating rod (110) is fixedly connected to a connecting disc 2 (128), and the electric push rods (129) are all connected to the connecting disc. The receiving plate 2 (128) is fixedly connected, a material extraction seat (126) is installed on the upper part of the outer periphery of the hollow rotating rod (110), a chassis (121) is fixedly connected to the lower part of the outer periphery of the hollow rotating rod (110), a material guide plate (122) is fixedly connected to the top of the chassis (121), a supporting cylinder (106) is provided on the top of the chassis (121), and evenly distributed grid plates (105) are installed on the lower part of the outer periphery of the supporting cylinder (106), scrapers (125) are fixedly connected on both sides of the middle part of the outer periphery of the hollow rotating rod (110), and evenly distributed limiting grooves (120) are opened at the bottom of the chassis (121).

2. a kind of calcium gluconate crystallization production crystallizer according to claim 1, is characterized in that: The stirring and evenly heating component includes a plurality of rotating racks (115), the bottom ends of the rotating racks (115) are fixedly connected with sliders (133), the sliders (133) are slidably connected to the inside of the limiting grooves (120), the inside of the limiting grooves (120) are installed with screws (132), the middle screws of the screws (132) are threadedly connected to the sliders (133), the middle of the rotating racks (115) are rotatably connected with rotating sleeves (118), one side of the rotating sleeves (118) is fixedly connected with side plates (114), the upper and lower parts of the outer periphery of the rotating sleeves (118) are installed with impellers (117), the lower part of the outer periphery of the supporting cylinder (106) is sleeved with evenly distributed rotating rings (135), and the outer periphery of the rotating rings (135) are installed with a plurality of stirring blades (109).

3. a kind of calcium gluconate crystallization production crystallizer according to claim 2, is characterized in that: The adaptive adjustment component includes a fixed frame (116), the fixed frame (116) is arranged on a side of the rotating sleeve (118) close to the supporting cylinder (106), the fixed frame (116) is fixedly connected to the rotating frame (115), a sliding groove (119) is opened in the middle of the fixed frame (116), a threaded rod (123) is arranged inside the sliding groove (119), the end of the threaded rod (123) is fixedly connected to the sealed motor, and the sealed motor is installed inside the fixed frame (116), the outer periphery of the threaded rod (123) is provided with evenly distributed thread segments, the inside of the threaded rod (123) is slidably connected to a plurality of thread blocks (124), and the thread blocks (124) are threadedly connected to the threaded rod (123) through the thread segments.

4. a calcium gluconate crystallization production crystallizer according to claim 3, is characterized in that: A reduction motor (104) is installed on the top of the rotating shaft (131), and the reduction motor (104) is installed in the middle of the top end of the tank body (101).

5. a calcium gluconate crystallization production crystallizer according to claim 4, is characterized in that: The second stirring blades (109) are both designed in sections, and the first stirring blade (108) is slidably connected between the two second stirring blades (109). The ends of the second stirring blades (109) away from the rotating ring (135) are both installed with threaded blocks (124).

6. A calcium gluconate crystallization production crystallizer according to claim 5, characterized in that: A top seat (102) is installed on the top of the tank body (101), a plurality of feed ports are provided on the top of the top seat (102), a discharge port (111) is installed in the middle of the bottom end of the tank body (101), a heating chamber (107) is provided at the lower part of the wall of the tank body (101), and circulation interfaces are installed on the upper part and one side of the bottom of the heating chamber (107).

7. A calcium gluconate crystallization production crystallizer according to claim 6, characterized in that: The connecting disk 1 (130), the electric push rod (129) and the connecting disk 2 (128) are all arranged inside the top seat (102), and the connecting disk 2 (128) and the hollow rotating rod (110) are both slidably connected to the top seat (102).

8. A calcium gluconate crystallization production crystallizer according to claim 7, characterized in that: The top of the support cylinder (106) is fixedly connected to a gear ring (127), the inner upper portion of the gear ring (127) is meshedly connected to a gear (134), the middle shaft of the gear (134) is fixedly connected to a servo motor, and the gear ring (127), the gear (134) and the servo motor are all installed inside the top seat (102).

9. A calcium gluconate crystallization production crystallizer according to claim 8, characterized in that: A control panel (103) is installed at the front of the tank body (101), and the control panel (103) is electrically connected to the stirring and uniform heating component, the adaptive adjustment component and the crystal transfer component. The control panel (103) is used to control the stirring and uniform heating component, the adaptive adjustment component and the crystal transfer component.

10. A method for using a crystallizer for calcium gluconate crystal production, applied to the crystallizer for calcium gluconate crystal production according to claim 9, characterized in that: The following steps are included: S1. Equipment preparation and solution introduction S1.

1. Equipment initialization: Check the operating status of each component of the evaporation crystallization tank (1) to ensure that it is well sealed and has no faults; S1.2, introducing the solution to be crystallized: injecting the calcium gluconate solution to be crystallized into the tank body (101) through the feed pipe on the top of the top seat (102); S2, evaporation and concentration stage S2.

1. Heat medium circulation heating: start the circulation pump and the heater, introduce the heat medium into the heating chamber (107), and uniformly heat the solution in the tank (101) through the heat medium circulation to achieve evaporation and concentration; S2.

2. Initial stirring and preventing local overheating: Start the reduction motor (104): drive the rotating shaft (131) to rotate, drive the hollow rotating rod (110) to rotate through the connecting disk (130) and the electric push rod (129), and then drive the rotating frame (115) to stir the solution through the bottom plate (121) to evenly distribute the heat and avoid local overheating; S2.3, screw (132) adjusts the position of the turntable (115): ① In the initial stage of evaporation, the lead screw (132) is started to cause the slider (133) to drive the rotating frame (115) to move toward the inner wall of the tank (101), thereby enhancing the stirring of the edge solution and preventing the rapid evaporation of the edge solvent from causing explosive nucleation and the formation of deformed crystals; ② When the temperature in the tank is balanced, the screw (132) drives the rotating frame (115) to retract, so that the stirring blades 1 (108) and 2 (109) maintain a safe distance from the inner wall of the tank body (101), avoiding the local flow rate being too high or the solution fluctuating too much, which may cause the crystal to break; S2.

4. Dynamic adjustment of the height of the stirring blades: As the evaporation proceeds, the liquid level of the solution drops, and the sealing motor is started to drive the threaded rod (123) to rotate. The threaded section and the threaded block (124) are linked to each other, so that the stirring blades 1 (108) and 2 (109) move downward synchronously and always remain in the solution, ensuring that the solutions at different heights are evenly stirred to avoid temperature differences between the upper and lower layers; S3, crystallization management stage S3.

1. Collection and transfer of bottom crystals: After crystals begin to precipitate, the internal pump of the extraction seat (126) is started to extract the crystals deposited at the bottom of the tank (101) through the hollow rotating rod (110) and the suction plate (112) and transfer them to the support cylinder (106); the solution flows back to the tank (101) through the grid plate (105) to prevent crystal accumulation from affecting stirring and breaking; S3.2, Anti-sticking and crystal scraping: ① After the evaporation and crystallization are completed, the electric push rod (129) drives the second connecting plate (128) and the hollow rotating rod (110) to descend, so that the bottom plate (121) and the guide plate (122) descend, and the bottom opening of the supporting cylinder (106) is opened; ② Start the lead screw (132) to expand the rotating frame (115) outward, and the side plate (114) contacts the inner wall of the tank body (101); start the servo motor, drive the gear ring (127) to rotate through the gear (134), and rotate the supporting cylinder (106), and use the scraper (125) to scrape off the crystals attached to the inner wall of the tank body (101) and the supporting cylinder (106); S4. Discharging and equipment cleaning S4.

1. Crystal discharge: Open the discharge port (111) at the bottom of the tank (101) to allow the calcium gluconate crystals to be discharged through the discharge port (111); at the same time, the crystals in the support cylinder (106) are discharged synchronously through the bottom opening; S4.

2. Equipment cleaning: After a batch of production is completed and the material is discharged, the tank body (101), the stirring component, and the supporting cylinder (106) are cleaned to prepare for the next batch of production.

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