Crystallizing tank for calcium gluconate crystallization production and use method thereof

Abstract

The invention relates to the field of calcium gluconate evaporative crystallization equipment, in particular to a crystallizing tank for calcium gluconate crystallization production and a using method thereof.The crystallizing tank comprises an evaporative crystallization tank body, the evaporative crystallization tank body comprises a tank body, a stirring and uniform heating assembly is arranged on the inner edge of the tank body, and an adaptive adjusting assembly is installed on one side of the stirring and uniform heating assembly; a crystal transfer assembly is arranged at the middle part in the tank body; the stirring and uniform heating assembly is used for stirring the to-be-crystallized solution in the tank body to uniformly disperse heat; the adaptive adjusting assembly is used for adaptively adjusting the stirring and heat uniformizing assembly according to the evaporation progress; according to the crystal stirring device, the situation that the stirring work is easily affected in the later period that the crystals are continuously accumulated at the bottom in the tank body and become high can be avoided, and meanwhile the situation that the crystals are likely to collide with a stirring component along with flowing of a solution, and consequently the crystals are broken can be effectively reduced.

Description

Technical Field

[0001] The present invention relates to the field of calcium gluconate evaporation crystallization equipment, and particularly to a crystallization tank for calcium gluconate crystallization production and its usage method. Background Art

[0002] In the evaporation crystallization production of calcium gluconate raw materials, traditional processes often have problems such as irregular crystal morphology, low purity, high breakage rate, and low production efficiency due to local overheating, uneven stirring, and insufficient crystal management. When traditional equipment is heated, it is easy to cause local temperatures at the edges and bottom of the solution to be too high, resulting in rapid evaporation of the solvent and excessive supersaturation, leading to the explosive generation of tiny crystal nuclei and the formation of deformed crystals. Moreover, high temperatures may cause solute decomposition and reduce purity. The single-layer stirring paddle with a fixed height cannot be dynamically adjusted according to the liquid level, easily causing temperature differences between the upper and lower layers of the solution and flow blind spots at the edges, exacerbating uneven crystallization. Crystals deposited at the bottom of the tank are prone to accumulation, affecting stirring and breaking due to collisions. Crystallization on the inner wall also requires frequent manual cleaning, increasing labor intensity and impurity risks. Although existing technologies have tried to optimize by adding crystal seeds, etc., 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 its usage method to solve the above-mentioned problems. Summary of the Invention

[0003] The purpose of the present invention is to solve the drawbacks existing in the background art, and to propose a crystallization tank for calcium gluconate crystallization production and its usage method.

[0004] To achieve the above object, the technical solution adopted by the present invention is: A crystallization tank for calcium gluconate crystallization production, including an evaporation crystallization tank, the evaporation crystallization tank includes a tank body, a stirring and heat - spreading component is arranged at the inner edge of the tank body, an adaptive adjustment component is installed on one side of the stirring and heat - spreading component, and a crystal transfer component is arranged in the middle of the tank body; The stirring and heat - spreading component is used to stir the solution to be crystallized inside the tank body to make the heat spread evenly; The adaptive adjustment component is used to adaptively adjust the stirring and heat - spreading component according to the evaporation progress; The crystal transfer component is used to transfer and protect the precipitated crystal crystals; The crystal transfer assembly includes a hollow rotating rod, a suction cup is installed at the bottom of the hollow rotating rod, uniformly distributed aggregate blades are fixedly connected to the outer periphery of the suction cup, a rotating shaft is slidably connected to the top of the hollow rotating rod, a first connecting disc is fixedly connected to the lower part of the outer periphery of the rotating shaft, a plurality of electric push rods are fixedly connected to the bottom of the first connecting disc, a second connecting disc is fixedly connected to the upper part of the outer periphery of the hollow rotating rod, the electric push rods are all fixedly connected to the second connecting disc, a material extraction seat is installed on the upper part of the outer periphery of the hollow rotating rod, a chassis is fixedly connected to the lower part of the outer periphery of the hollow rotating rod, a material guiding disc is fixedly connected to the top of the chassis, a supporting cylinder is arranged on the top of the chassis, uniformly distributed grid plates are installed on the lower part of the outer periphery of the supporting cylinder, scraping frames are fixedly connected to both sides of the middle part of the outer periphery of the hollow rotating rod, and uniformly distributed limiting grooves are formed in the bottom of the chassis.

[0005] Preferably, the stirring and heat - equalizing assembly includes a plurality of rotating frames, sliders are fixedly connected to the end parts of the bottoms of the rotating frames, the sliders are all slidably connected inside the limiting grooves, lead screws are installed inside the limiting grooves, the middle screw rods of the lead screws are all threadedly connected with the sliders, rotating sleeves are rotatably connected to the middle parts of the rotating frames, side plates are fixedly connected to one sides of the rotating sleeves, impellers are installed on the upper and lower parts of the outer peripheries of the rotating sleeves, uniformly distributed rotating rings are sleeved on the lower part of the outer periphery of the supporting cylinder, and a plurality of second stirring blades are installed on the outer peripheries of the rotating rings.

[0006] Preferably, the adaptation and adjustment assembly includes fixing frames, the fixing frames are all arranged on the side of the rotating sleeve close to the supporting cylinder, the fixing frames are all fixedly connected to the rotating frames, chutes are formed in the middle parts of the fixing frames, threaded rods are arranged inside the chutes, sealing motors are fixedly connected to the end parts of the threaded rods, the sealing motors are all installed inside the fixing frames, uniformly distributed threaded sections are arranged on the outer peripheries of the threaded rods, a plurality of threaded blocks are slidably connected inside the threaded rods, and the threaded blocks are all threadedly connected with the threaded rods through the threaded sections.

[0007] Preferably, a reduction motor is installed at the top of the rotating shaft, and the reduction motor is installed in the middle of the top end of the tank body.

[0008] Preferably, the second stirring blades are all of a segmented design, a first stirring blade is slidably connected between two adjacent second stirring blades, and threaded blocks are installed at the ends of the second stirring blades away from the rotating rings.

[0009] Preferably, a top seat is installed at the top of the tank body, a plurality of feed ports are arranged on the top of the top seat, a discharge port is installed in the middle of the bottom end of the tank body, heating cavities are arranged on the lower part of the tank body wall, and circulation interfaces are installed at the upper part and one side of the bottom of the heating cavity.

[0010] Preferably, the first connecting disc, the electric push rods and the second connecting disc are all arranged inside the top seat, and the second connecting disc and the hollow rotating rod are both slidably connected to the top seat.

[0011] Preferably, a toothed ring is fixedly connected to the top of the supporting cylinder. An upper part inside the toothed ring is meshed with a gear. A servo motor is fixedly connected to the middle shaft of the gear. The toothed ring, the gear and the servo motor are all installed inside the top seat.

[0012] Preferably, a control panel is installed at the front of the tank body. The control panel is electrically connected to the stirring and heat - equalizing assembly, the adaptation and adjustment assembly, and the crystal transfer assembly. The control panel is used to control the stirring and heat - equalizing assembly, the adaptation and adjustment assembly, and the crystal transfer assembly.

[0013] Preferably, a method for using a crystallization tank for the production of calcium gluconate crystals includes the following steps; S1. Equipment preparation and solution introduction S1.1. Equipment initialization: Check the operating status of each component of the evaporation crystallization tank to ensure good sealing and no faults; S1.2. Introduce the solution to be crystallized: Inject the calcium gluconate solution to be crystallized into the tank body through the feed pipe at the top of the top seat. 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, and uniformly heat the solution in the tank through the heat - medium circulation to achieve evaporation and concentration; S2.2. Initial stirring and prevention of local overheating: Start the reduction motor to drive the rotation of the rotating shaft, drive the hollow rotating rod to rotate through the first connecting disc and the electric push rod, and then drive the rotating frame to stir the solution through the chassis to make the heat distribution uniform and avoid local overheating; S2.3. Adjust the position of the rotating frame by the lead screw: ①. In the initial stage of evaporation, start the lead screw to make the slider drive the rotating frame to move towards the inner side wall of the tank body, enhance the stirring of the solution at the edge, and prevent the rapid evaporation of the solvent at the edge from causing explosive nucleation and the formation of deformed crystals.

[0014] ②. When the temperature in the tank is balanced, the lead screw drives the rotating frame to retract, so that the first and second stirring blades keep a safe distance from the inner wall of the tank body to avoid crystal breakage caused by too high local flow rate or too large solution fluctuation; S2.4. Dynamically adjust the height of the stirring blades: As the evaporation progresses and the solution level drops, start the sealing motor to drive the rotation of the threaded rod, and through the linkage of the threaded section and the threaded block, make the first and second stirring blades move downward synchronously, always remaining in the solution, ensuring that the solution at different heights is uniformly stirred and avoiding temperature differences between the upper and lower layers; S3. Crystallization management stage S3.1. Bottom crystal collection and transfer: After crystals start to precipitate, start the pump inside the pumping seat, and extract the crystals deposited at the bottom of the tank through the hollow rotating rod and the suction cup, and transfer them into the supporting cylinder; the solution flows back to the tank through the grid plate to prevent crystal accumulation from affecting stirring and breaking; S3.2. Anti-sticking to the wall and crystal scraping: ①. After evaporation crystallization is completed, drive the connecting disk II and the hollow rotating rod to descend through the electric push rod, so that the chassis and the guiding disk descend, and open the opening at the bottom of the supporting cylinder.

[0015] ②. Start the lead screw to expand the rotating frame outward, and the side plate contacts the inner wall of the tank; start the servo motor, drive the toothed ring to rotate through the gear, make the supporting cylinder rotate, and use the scraping frame to scrape the crystals attached to the inner walls of the tank and the supporting cylinder; S4. Discharging and equipment cleaning S4.1. Crystal discharging: Open the discharging port at the bottom of the tank, and let the calcium gluconate crystals discharge through the discharging port; at the same time, the crystals in the supporting cylinder are discharged synchronously through the bottom opening; S4.2. Equipment cleaning: After a batch of production and discharging are completed, clean the tank, stirring components, supporting cylinder, etc. to prepare for the next batch of production.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the innovative transmission design, at the initial stage of evaporation crystallization, the present invention can accurately control the lead screw to drive the slider and the rotating frame to displace horizontally, so that the rotating frame is close to the side wall of the tank. This structural design can significantly enhance the stirring force of the solution to be crystallized at the edge of the tank, quickly transfer the heated solution at the edge of the tank to the central area, effectively inhibit local heat accumulation. Avoid the rapid evaporation of the solvent in the edge solution, resulting in a sharp increase in supersaturation, prevent the explosive generation of tiny crystal nuclei, and thus avoid the abnormal growth of crystals, laying a foundation for the production of high-quality calcium gluconate.

[0017] 2. When the temperature inside the tank tends to be uniform, the lead screw is started again to drive the rotating frame to retract to a reasonable position, and accurately regulate the stirring range of the first stirring blade and the second stirring blade. This design cleverly maintains a safe distance between the stirring components and the side wall of the tank, avoiding the generation of additional heat due to too fast local flow rate, and preventing the violent fluctuation of the solution from causing the precipitated crystals to break, ensuring the smooth and controllable crystallization process, and improving the stability and reliability of the production process.

[0018] 3. As the evaporation and concentration process progresses in the present invention, the sealed motor drives the threaded rod to rotate. Utilizing the principle of screw drive, the stirring blade one, stirring blade two, and the threaded rod are synchronously lifted and lowered through the threaded block. In the initial stage of evaporation, when the liquid level is relatively high, the stirring blades can be precisely adjusted to an appropriate depth in the solution to achieve sufficient and uniform stirring. As evaporation proceeds and the liquid level drops, the sealed motor continues to operate, dynamically adjusting the position of the stirring blades so that they are always immersed in the solution. This self-adaptive adjustment mechanism not only improves the utilization rate of the stirring components but also ensures that the solution can be evenly 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 the crystallization of calcium gluconate.

[0019] 4. In the crystallization precipitation stage of the present invention, the pump body inside the pumping seat extracts and transfers the crystals deposited at the bottom of the tank to the supporting cylinder through the hollow rotating rod and the suction cup. The unique grid plate structure of the supporting cylinder realizes the separation function of crystal interception and solution reflux, effectively preventing the accumulation of crystals at the bottom of the tank from affecting the stirring operation and reducing the situation of crystal breakage 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 plate two, the hollow rotating rod, and related components to descend, opening the bottom opening of the supporting cylinder to smoothly export the internal crystals. In addition, the lead screw drives the rotating frame to expand outward so that the side plates fit the inner wall of the tank, and the servo motor drives the toothed ring and the supporting cylinder to rotate through gear transmission. By utilizing the relative movement between the scraping frame and the supporting cylinder, the residual crystals on the inner walls of the tank and the supporting cylinder are efficiently removed, realizing the integrated operation of production, discharging, and equipment cleaning, and greatly improving the production efficiency and the convenience of equipment maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a front three-dimensional structural schematic diagram of a crystallization tank for calcium gluconate crystallization production and its usage method according to the present invention; Figure 2 is an internal structural schematic diagram of the tank of a crystallization tank for calcium gluconate crystallization production and its usage method according to the present invention; Figure 3 is a partial structural schematic diagram of the suction cup of a crystallization tank for calcium gluconate crystallization production and its usage method according to the present invention; Figure 4 is a partial structural schematic diagram of the threaded rod of a crystallization tank for calcium gluconate crystallization production and its usage method according to the present invention; Figure 5 is a partial internal structural schematic diagram of the supporting cylinder of a crystallization tank for calcium gluconate crystallization production and its usage method according to the present invention; Figure 6 is a partial structural schematic diagram of the toothed ring of a crystallization tank for calcium gluconate crystallization production and its usage method according to the present invention.

[0021] 1. Evaporation crystallization tank; 101. Tank body; 102. Top seat; 103. Control panel; 104. Reduction motor; 105. Grid plate; 106. Support cylinder; 107. Heating chamber; 108. Stirring blade I; 109. Stirring blade II; 110. Hollow rotating rod; 111. Discharge port; 112. Suction cup; 113. Aggregate blade; 114. Side plate; 115. Rotating frame; 116. Fixed frame; 117. Impeller; 118. Rotating sleeve; 119. Chute; 120. Limiting groove; 121. Chassis; 122. Guide plate; 123. Threaded rod; 124. Threaded block; 125. Scraping frame; 126. Suction feeding seat; 127. Tooth ring; 128. Connecting plate II; 129. Electric push rod; 130. Connecting plate I; 131. Rotating shaft; 132. Lead screw; 133. Slide block; 134. Gear; 135. Rotating ring. Detailed implementation manner

[0022] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations.

[0023] As Figures 1-6 A crystallization tank for the production of calcium gluconate crystals as shown includes an evaporation crystallization tank 1. The evaporation crystallization tank 1 includes a tank body 101. A stirring and heat - spreading component is arranged at the inner edge of the tank body 101. An adaptation and adjustment component is installed on one side of the stirring and heat - spreading component. A crystal transfer component is arranged 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 heat - spreading component, the adaptation and adjustment component, and the crystal transfer component. The control panel 103 is used to control the stirring and heat - spreading component, the adaptation and adjustment component, and the crystal transfer component. A top seat 102 is installed at the top of the tank body 101. A plurality of feed ports are arranged at 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. Heating chambers 107 are arranged on the lower part of the tank body 101 wall. Circulation interfaces are installed at the upper part and one side of the bottom of the heating chamber 107. In specific implementation, people can realize the evaporation crystallization of calcium gluconate raw materials through the evaporation crystallization tank 1 to prepare calcium gluconate crystals. People can introduce the solution to be crystallized into the inside of 11 through the feed pipe at the top of the top seat 102. Then, people can introduce the heat medium into the heating chamber 107 through the circulation pump and the heater, and realize the heating of the solution to be crystallized inside the tank body 101 by circulating the heat medium, so as to realize the evaporation and concentration of the solution to be crystallized.

[0024] The stirring and heat - spreading component is used to stir the solution to be crystallized inside the tank body 101 to make the heat spread evenly. The adaptation and adjustment component is used to adaptively adjust the stirring and heat - spreading component according to the evaporation progress. The crystal transfer component is used for transferring and protecting the precipitated crystalline crystals; The crystal transfer component includes a hollow rotating rod 110. A suction cup 112 is installed at the bottom of the hollow rotating rod 110. Uniformly distributed aggregate blades 113 are fixedly connected to the outer periphery of the suction cup 112. A rotating shaft 131 is slidably connected to the top of the hollow rotating rod 110. A reduction motor 104 is installed at the top of the rotating shaft 131. The reduction motor 104 is installed in the middle of the top end of the tank body 101. A first connecting plate 130 is fixedly connected to the lower part of the outer periphery of the rotating shaft 131. A wiring plate is installed on the top of the first connecting plate 130. The input end of the wiring plate is connected to an external power supply through a sealed rotary joint. The output end of the wiring plate is connected to an electric push rod 129, a servo motor, a sealed motor, and a lead screw 132 through a special high-temperature and corrosion-resistant wire to supply power to them. The wires are respectively buried inside the walls of the hollow rotating rod 110, the scraping frame 125, the rotating frame 115, the chassis 121, and the fixing frame 116. A plurality of electric push rods 129 are fixedly connected to the bottom of the first connecting plate 130. A second connecting plate 128 is fixedly connected to the upper part of the outer periphery of the hollow rotating rod 110. The electric push rods 129 are all fixedly connected to the second connecting plate 128. 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 guiding plate 122 is fixedly connected to the top of the chassis 121. A supporting cylinder 106 is arranged on the top of the chassis 121. Uniformly distributed grid plates 105 are installed on the lower part of the outer periphery of the supporting cylinder 106. Scraping frames 125 are fixedly connected to both sides of the middle part of the outer periphery of the hollow rotating rod 110. Uniformly distributed limiting grooves 120 are formed at the bottom of the chassis 121. The first connecting plate 130, the electric push rods 129, and the second connecting plate 128 are all arranged inside the top seat 102. The second connecting plate 128 and the hollow rotating rod 110 are both slidably connected to the top seat 102. A gear ring 127 is fixedly connected to the top of the supporting cylinder 106. A gear 134 is meshed and connected to the upper part of the inner side of the gear ring 127. A servo motor is fixedly connected to the middle shaft of the gear 134. The gear ring 127, the gear 134, and the servo motor are all installed inside the top seat 102; Furthermore, in a 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 plate 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, and 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 high at the bottom of the tank body 101, which is easy to affect the stirring work in the later stage, and at the same time, it can effectively reduce the situation where the crystals are easy to hit the stirring parts with the flow of the solution and the crystals break, which is conducive to the continuous evaporation and crystallization work. After the evaporation and crystallization are 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 128 and the hollow rotating rod 110 to descend, so that the bottom plate 121 and the guide disk 122 can be synchronously descended, 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 export 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 to practical use.

[0025] The stirring and uniform 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 lead screws 132, the driving motor can choose a small ball screw or a small T-shaped lead screw, the lead screws 132 are composed of a driving motor and a lead rod, the driving motors are installed inside the chassis 121, the middle part of the lead screw 132 is threadedly connected to the slider 133, and the middle part of the rotating rack 115 is rotatably connected with the rotating rack 115. The movable sleeve 118 and the rotating sleeve 118 are fixedly connected to the side plate 114 on one side, and the upper and lower parts of the outer periphery of the rotating sleeve 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 ring 135 is installed with a plurality of stirring blades 109. The stirring blades 109 are all segmented designs, and the stirring blades 108 are slidably connected between the two stirring blades 109. The ends of the stirring blades 109 away from the rotating ring 135 are installed with threaded blocks 124; Further, in specific implementation, people can start the reduction motor 104. The reduction motor 104 can drive the rotating shaft 131 to rotate. Through the rotating shaft 131, the hollow rotating rod 110 can be driven to rotate by the connecting plate 1 and the electric push rod 129. The chassis 121 installed at the lower part of the outer circumference of the hollow rotating rod 110 can drive the rotating frame 115 inside the tank body 101 to rotate. Through the rotating frame 115, the mixing of the solution to be crystallized inside can be realized, and at the same time, the heat of the solution to be crystallized can be distributed more evenly, which is beneficial to the evaporation and concentration work of the solution to be crystallized. At the same time, it can avoid the situation that the crystals precipitated due to local overheating grow unevenly or the purity decreases. During the evaporation crystallization process, people can first start the lead screw 132. The lead screw 132 drives the slider 133 and the rotating frame 115 to move, so that the whole rotating frame 115 can approach the inner side wall of the tank body 101, thereby enhancing the stirring effect on the solution to be crystallized at the edge inside the tank body 101. In the initial stage of evaporation, the heated solution to be crystallized at the edge can be quickly taken away from the edge, thus effectively avoiding the heat accumulation of the solution to be crystallized at the edge, so that the solvent in the local area of the solution to be crystallized at this place evaporates rapidly to form a very high supersaturation, which promotes the instantaneous explosive generation of a large number of tiny crystal nuclei, resulting in the situation that some crystal faces of the crystal grow too fast to form deformed crystals, which is beneficial to the production work of calcium gluconate. After that, when the temperature inside the tank body 101 reaches equilibrium, the lead screw 132 works again to drive the rotating frame 115 to retract, so as to control the agitation range of the stirring blade 108 and the stirring blade 109, thereby avoiding the situation that the stirring blade 108 and the stirring blade 109 are too close to the inner edge of the tank body 101, maintaining a certain distance, avoiding too high local flow velocity and generating too much heat due to being too close to the edge, and at the same time preventing the solution from being stirred too violently, resulting in the breakage of the precipitated crystals, which is beneficial to actual use.

[0026] Among them, the adaptive adjustment assembly includes a fixed frame 116. The fixed frames 116 are all arranged on the side of the rotating sleeve 118 close to the supporting cylinder 106. The fixed frames 116 are all fixedly connected to the rotating frame 115. The middle parts of the fixed frames 116 are all provided with chutes 119. Inside the chutes 119, threaded rods 123 are all arranged. The ends of the threaded rods 123 are all fixedly connected with sealed motors. The sealed motors are all installed inside the fixed frames 116. Uniformly distributed thread segments are arranged on the outer circumferences of the threaded rods 123. A plurality of threaded blocks 124 are all slidably connected inside the threaded rods 123. The threaded blocks 124 are all threadedly connected to the threaded rods 123 through the thread segments. Further, in specific implementation, as the evaporation and concentration work progresses, the sealed motor can start to work, thereby driving the threaded rod 123 to rotate. Through the threaded section on the threaded rod 123, the threaded block 124 can drive the stirring blades one 108, the stirring blades two 109 and the threaded rod 123 to move up and down. In the initial stage, when the liquid level inside the tank body 101 is relatively high, the stirring blades one 108 and the stirring blades two 109 are evenly adjusted inside the solution to ensure sufficient and uniform stirring of the solution. As the evaporation and crystallization work progresses, the sealed motor is gradually started to adjust the positions of the stirring blades one 108 and the stirring blades two 109 downward, so that each of the stirring blades one 108 and the stirring blades two 109 can always remain in the solution, thereby enabling each of the stirring blades one 108 and the stirring blades two 109 to be fully utilized. And during this process, the stirring blades one 108 and the stirring blades two 109 can maintain a uniform spacing, so that the solution can be evenly stirred at different heights, avoiding temperature differences between the upper and lower layers of the solution caused by uneven stirring of a single-layer paddle, which is beneficial to the crystallization work of calcium gluconate.

[0027] Among them, a method for using a crystallization tank for the production of calcium gluconate crystallization includes the following steps; S1. Equipment preparation and solution introduction S1.1. Equipment initialization: Check the operating status of each component of the evaporation and crystallization tank 1 to ensure good sealing and no faults; S1.2. Introduce the solution to be crystallized: Inject the calcium gluconate solution to be crystallized into the tank body 101 through the feed pipe at 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 a heat medium such as hot water or steam into the heating chamber 107, and uniformly heat the solution in the tank body 101 through the heat medium circulation to achieve evaporation and concentration; S2.2. Initial stirring and prevention of 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 plate one 130 and the electric push rod 129, and then drive the rotating frame 115 to stir the solution through the chassis 121 to make the heat distribution uniform and avoid local overheating; S2.3. The lead screw 132 adjusts the position of the rotating frame 115: ①. In the initial stage of evaporation, start the lead screw 132 to drive the slider 133 to drive the rotating frame 115 to move towards the inner side wall of the tank body 101 to enhance the stirring of the solution at the edge and prevent explosive nucleation and the formation of deformed crystals caused by rapid evaporation of the solvent at the edge.

[0028] ② After the temperature inside the tank is balanced, the lead screw 132 drives the rotating frame 115 to retract, so that the first stirring blade 108 and the second stirring blade 109 maintain a safe distance from the inner wall of the tank body 101, avoiding crystal breakage caused by too high local flow rate or excessive solution fluctuation; S2.4. Dynamically adjust the height of the stirring blades: As evaporation progresses and the solution level drops, start the sealing motor to drive the threaded rod 123 to rotate. Through the linkage between the threaded section and the threaded block 124, the first stirring blade 108 and the second stirring blade 109 move downward synchronously, always remaining in the solution to ensure that the solution at different heights is evenly stirred and avoid temperature differences between the upper and lower layers; S3. Crystallization management stage S3.1. Collect and transfer the bottom crystals: After crystallization starts to precipitate, start the pump body inside the pumping seat 126, and extract the crystals deposited at the bottom of the tank body 101 through the hollow rotating rod 110 and the suction cup 112, and transfer them into the supporting cylinder 106; the solution flows back into the tank body 101 through the grid plate 105 to avoid crystal accumulation affecting stirring and breakage; S3.2. Anti-sticking wall and crystal scraping: ① After evaporation crystallization is completed, drive the second connecting disk 128 and the hollow rotating rod 110 to descend through the electric push rod 129, so that the chassis 121 and the guiding disk 122 descend, and open the bottom opening of the supporting cylinder 106.

[0029] ② Start the lead screw 132 to expand the rotating frame 115, and the side plate 114 contacts the inner wall of the tank body 101; start the servo motor, drive the toothed ring 127 to rotate through the gear 134, make the supporting cylinder 106 rotate, and use the scraping frame 125 to scrape the crystals attached to the inner walls of the tank body 101 and the supporting cylinder 106; S4. Discharging and equipment cleaning S4.1. Crystal discharging: Open the bottom discharge port 111 of the tank body 101, so that the calcium gluconate crystals are discharged through the discharge port 111; at the same time, the crystals in the supporting cylinder 106 are discharged synchronously through the bottom opening; S4.2. Equipment cleaning: After a batch of production and discharging are completed, clean the tank body 101, the stirring components, the supporting cylinder 106, etc., to prepare for the next batch of production.

[0030] Working principle: In actual use, people can achieve the evaporation and crystallization of calcium gluconate raw materials through the evaporation crystallization tank 1 to prepare calcium gluconate crystals. People can introduce the solution to be crystallized into the tank 11 through the feed pipe at the top of the top seat 102. Then, people can introduce the heat medium into the heating chamber 107 through the circulation pump and the heater, and by circulating the heat medium, the heating of the solution to be crystallized inside the tank body 101 can be achieved, realizing the evaporation and concentration of the solution to be crystallized. During this process, people can start the reduction motor 104. Through the reduction motor 104, the rotating shaft 131 can be driven to rotate. Through the rotating shaft 131, the hollow rotating rod 110 can be driven to rotate by using the connecting plate 130 and the electric push rod 129. Through the chassis 121 installed at the lower part of the outer circumference of the hollow rotating rod 110, the rotating frame 115 inside the tank body 101 can be driven to rotate. Through the rotating frame 115, the solution to be crystallized inside can be mixed evenly, and at the same time, the heat of the solution to be crystallized can be spread more evenly, which is beneficial to the evaporation and concentration work of the solution to be crystallized. At the same time, it can avoid the situation that the crystals precipitated due to local overheating grow unevenly or the purity decreases. During the evaporation and crystallization process, people can first start the lead screw 132. Through the lead screw 132, the slider 133 and the rotating frame 115 can be driven to move, so that the whole rotating frame 115 can be close to the inner side wall of the tank body 101, thereby enhancing the stirring effect on the solution to be crystallized at the edge inside the tank body 101. In the initial stage of evaporation, the heated solution to be crystallized at the edge can be quickly taken away from the edge, thus effectively avoiding the heat accumulation of the solution to be crystallized at the edge, making the solvent in a local area of the solution to be crystallized evaporate rapidly to form a very high supersaturation, which promotes the instantaneous explosive generation of a large number of tiny crystal nuclei, resulting in the situation that some crystal faces of the crystals grow too fast to form deformed crystals, which is beneficial to the production work of calcium gluconate. After that, when the temperature inside the tank body 101 reaches equilibrium, the lead screw 132 works again to drive the rotating frame 115 to retract, thereby controlling the agitation range of the stirring blade 108 and the stirring blade 109, avoiding the stirring blade 108 and the stirring blade 109 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 too high local flow rate and excessive heat generation, and at the same time preventing the solution from being agitated too much, resulting in the rupture of the precipitated crystals, which is beneficial to actual use. During this process, as the evaporation and concentration work progresses, the sealing motor can start to work, thereby driving the threaded rod 123 to rotate. Through the threaded section on the threaded rod 123, the threaded block 124 can be used to drive each stirring blade 108, stirring blade 109 and the threaded rod 123 to move up and down. In the initial stage, when the liquid level inside the tank body 101 is relatively high, the stirring blade 108 and the stirring blade 109 are evenly adjusted inside the solution to ensure sufficient and uniform agitation of the solution. As the evaporation and crystallization work progresses, gradually start the sealing motor to adjust the positions of the stirring blade 108 and the stirring blade 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 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 through the inside of the pumping seat 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 plate 112. The solution near the pump body 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 the crystals to break as the solution flows, which is beneficial to the continuous evaporation and crystallization. After the evaporation and crystallization are 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 plate 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 The crystals can be discharged through the opening to realize the export of the crystals. At this time, people can start the lead screw 132 and the servo motor, and the lead 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, 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 to practical use.

[0031] 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 only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A crystallization tank for the production of calcium gluconate crystals, comprising an evaporation crystallization tank (1), characterized in that: The evaporation crystallization tank (1) includes a tank body (101). A stirring and heat - uniforming assembly is arranged at the inner edge of the tank body (101). An adaptation and adjustment assembly is installed on one side of the stirring and heat - uniforming assembly. A crystal transfer assembly is arranged in the middle of the tank body (101). The stirring and heat - uniforming assembly is used to stir the solution to be crystallized inside the tank body (101) to make the heat spread evenly. The adaptation and adjustment assembly is used to adaptively adjust the stirring and heat - uniforming assembly according to the evaporation progress. The crystal transfer assembly is used to transfer and protect the precipitated crystal crystals. The crystal transfer assembly includes a hollow rotating rod (110). A suction cup (112) is installed at the bottom of the hollow rotating rod (110). Uniformly distributed aggregate blades (113) are fixedly connected to the outer periphery of the suction cup (112). A rotating shaft (131) is slidably connected to the top of the hollow rotating rod (110). A first connecting disk (130) is fixedly connected to the lower part of the outer periphery of the rotating shaft (131). A plurality of electric push rods (129) are fixedly connected to the bottom of the first connecting disk (130). A second connecting disk (128) is fixedly connected to the upper part of the outer periphery of the hollow rotating rod (110). The electric push rods (129) are all fixedly connected to the second connecting disk (128). A material suction 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 guide plate (122) is fixedly connected to the top of the chassis (121). A supporting cylinder (106) is arranged on the top of the chassis (121). Uniformly distributed grid plates (105) are installed on the lower part of the outer periphery of the supporting cylinder (106). Scraping frames (125) are fixedly connected to both sides of the middle part of the outer periphery of the hollow rotating rod (110). Uniformly distributed limiting grooves (120) are formed at the bottom of the chassis (121).

2. The crystallization tank for the production of calcium gluconate crystals according to claim 1, wherein: The stirring and heat - uniforming assembly includes a plurality of rotating frames (115). Sliders (133) are fixedly connected to the bottom ends of the rotating frames (115). The sliders (133) are all slidably connected inside the limiting grooves (120). Lead screws (132) are installed inside the limiting grooves (120). The middle lead screws of the lead screws (132) are threadedly connected to the sliders (133). Rotating sleeves (118) are rotatably connected to the middle parts of the rotating frames (115). Side plates (114) are fixedly connected to one side of the rotating sleeves (118). Impellers (117) are installed on the upper and lower parts of the outer periphery of the rotating sleeves (118). Uniformly distributed rotating rings (135) are sleeved on the lower part of the outer periphery of the supporting cylinder (106). A plurality of second stirring blades (109) are installed on the outer periphery of the rotating rings (135).

3. A crystallization tank for the production of calcium gluconate crystals according to claim 1, characterized in that: The adaptation and adjustment component includes a fixing frame (116), and the fixing frames (116) are all 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 chute (119) is provided in the middle of each fixing frame (116). A threaded rod (123) is arranged inside each chute (119). Sealed motors are fixedly connected to the ends of the threaded rods (123), and the sealed motors are all installed inside the fixing frames (116). Uniformly distributed threaded sections are arranged on the outer circumference of each threaded rod (123). A plurality of threaded blocks (124) are slidably connected inside each threaded rod (123), and the threaded blocks (124) are threadedly connected to the threaded rods (123) through the threaded sections.

4. A crystallization tank for the production of calcium gluconate crystals according to claim 1, characterized in that: A reduction motor (104) is installed at 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 crystallization tank for the production of calcium gluconate crystals according to claim 2, characterized in that: The second stirring blades (109) are all of a segmented design. A first stirring blade (108) is slidably connected between every two of the second stirring blades (109). Threaded blocks (124) are installed at the ends of the second stirring blades (109) far from the rotating ring (135).

6. A crystallization tank for the production of calcium gluconate crystals according to claim 1, characterized in that: A top seat (102) is installed at the top of the tank body (101). A plurality of feed ports are arranged at 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). Heating cavities (107) are arranged on the lower part of the wall body of the tank body (101). Circulation interfaces are installed at the upper part and one side of the bottom of the heating cavities (107).

7. A crystallization tank for the production of calcium gluconate crystals according to claim 1, characterized in that: The first connecting disc (130), the electric push rod (129) and the second connecting disc (128) are all arranged inside the top seat (102). The second connecting disc (128) and the hollow rotating rod (110) are both slidably connected to the top seat (102).

8. A crystallization tank for the production of calcium gluconate crystals according to claim 1, characterized in that: A toothed ring (127) is fixedly connected to the top of the supporting cylinder (106). A gear (134) is meshed and connected to the upper part inside the toothed ring (127). A servo motor is fixedly connected to the middle shaft of the gear (134). The toothed ring (127), the gear (134) and the servo motor are all installed inside the top seat (102).

9. A crystallization tank for the production of calcium gluconate crystals according to claim 1, characterized in that: 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 heat - equalizing component, the adaptation and adjustment component and the crystal transfer component. The control panel (103) is used to control the stirring and heat - equalizing component, the adaptation and adjustment component and the crystal transfer component.

10. A method for using a crystallization tank for producing calcium gluconate crystals, which is applied to the crystallization tank for producing calcium gluconate crystals according to any one of claims 1-9, and is characterized in that: Including the following steps; S1. Equipment preparation and solution introduction S1.

1. Equipment initialization: Check the operating status of each component of the evaporation and crystallization tank (1) to ensure good sealing and no faults; S1.

2. Introduce the solution to be crystallized: Inject the calcium gluconate solution to be crystallized into the tank body (101) through the feed pipe at 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 (such as hot water, steam) into the heating cavity (107), and uniformly heat the solution in the tank body (101) through the heat medium circulation to achieve evaporation and concentration; S2.2 Initial Stirring and Prevention of Local Overheating: Start the reduction motor (104) to drive the rotation of the rotating shaft (131). Through the first connecting disc (130) and the electric push rod (129), drive the hollow rotating rod (110) to rotate, and then drive the rotating frame (115) to stir the solution through the chassis (121), so as to make the heat distribution uniform and avoid local overheating. S2.3 Adjust the position of the rotating frame (115) by the lead screw (132): ① In the initial stage of evaporation, start the lead screw (132) to make the slider (133) drive the rotating frame (115) to move towards the inner wall of the tank body (101), enhance the stirring of the solution at the edge, and prevent the explosive nucleation and the formation of deformed crystals caused by the rapid evaporation of the solvent at the edge. ② After the temperature in the tank is balanced, the lead screw (132) drives the rotating frame (115) to retract, so that the first stirring blade (108) and the second stirring blade (109) keep a safe distance from the inner wall of the tank body (101), and avoid the crystal rupture caused by too high local flow rate or too large solution fluctuation. S2.4 Dynamically adjust the height of the stirring blades: As the evaporation progresses and the liquid level of the solution drops, start the sealing motor to drive the rotation of the threaded rod (123). Through the linkage of the threaded section and the threaded block (124), make the first stirring blade (108) and the second stirring blade (109) move downward synchronously, and always stay in the solution to ensure that the solution at different heights is evenly stirred and avoid the temperature difference between the upper and lower layers. S3 Crystallization Management Stage S3.1 Collect and transfer the crystals at the bottom: After the crystals start to precipitate, start the pump body inside the pumping seat (126), and extract the crystals deposited at the bottom of the tank body (101) through the hollow rotating rod (110) and the suction cup (112), and transfer them into the supporting cylinder (106); the solution flows back to the tank body (101) through the grid plate (105) to avoid the crystal accumulation affecting the stirring and rupture. S3.2 Anti-sticking to the wall and crystal scraping: ① After the evaporation crystallization is completed, drive the second connecting disc (128) and the hollow rotating rod (110) to descend through the electric push rod (129), so that the chassis (121) and the guide plate (122) descend, and open the bottom opening of the supporting cylinder (106). ② Start the lead screw (132) to expand the rotating frame (115), 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), make the supporting cylinder (106) rotate, and use the scraping frame (125) to scrape the crystals attached to the inner walls of the tank body (101) and the supporting cylinder (106). S4 Discharging and Equipment Cleaning S4.1 Crystal discharge: Open the bottom discharge port (111) of the tank body (101) to discharge the calcium gluconate crystals through the discharge port (111); at the same time, the crystals in the supporting cylinder (106) are discharged synchronously through the bottom opening. S4.2 Equipment cleaning: After a batch of production and discharging are completed, clean the tank body (101), stirring components, supporting cylinder (106), etc. to prepare for the next batch of production.

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