Crystallization kettle for chemical production

By optimizing the internal and external gallbladder structure of the crystallization kettle, the introduction of regular drug additive mechanism and modular connection design, the problems of low crystallization efficiency, unstable product quality and complex maintenance in the existing technology are solved, and efficient and stable crystallization process and low energy consumption production are achieved.

CN120169006APending Publication Date: 2025-06-20ANHUI MINGYUAN CHEM EQUIP CO LTD
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Patent Information

Application Number
CN202510671324.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-23
Publication Date
2025-06-20

AI Technical Summary

Technical Problem

There are shortcomings in the structural design and operation process of existing crystal kettles, resulting in low crystallization efficiency, unstable product quality, complex maintenance and high energy consumption.

Method used

By optimizing the internal and external gallbladder structure, introducing regular drug additive mechanisms and modular connection designs, a double-layer dynamic stirring structure and a double-layer filter hole design are formed, and the precise delivery and rapid disassembly of the agent is achieved.

Benefits of technology

It significantly improves crystallization efficiency and product quality, reduces maintenance costs and energy consumption, and ensures product consistency and high purity.

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Abstract

The invention relates to the technical field of chemical crystallization equipment, and discloses a crystallization kettle for chemical production, which comprises a reaction crystallization mechanism, a reaction agent adding mechanism is fixedly connected to the outer side of the top end of the reaction crystallization mechanism, a driving block is fixedly connected to one side of the upper part of the reaction crystallization mechanism, and a rotating rod is rotatably connected to the upper side of the driving block. The outer side of the end, away from the driving block, of the rotating rod is fixedly connected with a connecting block, and the outer side of the connecting block is fixedly connected with a cover plate. According to the invention, through the reaction crystallization mechanism, the problems that components in a traditional crystallization kettle are difficult to disassemble, the production efficiency is influenced, mother liquor and crystals collected by part of equipment are not thoroughly separated, and the subsequent treatment cost is increased are solved, and through the cooperation of a reaction agent adding mechanism, a driving block, a rotating rod, a connecting block and a cover plate, the problem that in the prior art, the crystallization efficiency is increased is solved. The problems that timed and quantitative accurate control is difficult to achieve during medicament adding, the product consistency is reduced, and even impurities are mixed are solved.
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Description

Technical Field

[0001] The present invention relates to the technical field of chemical crystallization equipment, and particularly to a crystallization kettle for chemical production. Background Art

[0002] Crystallization technology is a conventional technology for separating solid products from liquids and is often applied to the production of products in various chemical fields. For example, chemical reagents, drugs, foods, etc. all involve crystallization technology. In the process of chemical production, a crystallization kettle is a key equipment for the crystallization separation of substances, and its performance directly affects the purity, crystallization efficiency, and energy consumption of the product. However, there are still many deficiencies in the structural design and operation process of the existing crystallization kettles.

[0003] The internal components of traditional crystallization kettles (such as reaction tanks and filtration structures) usually adopt a fixed connection method, which is difficult to disassemble. After long-term use, the filter holes are easily blocked by crystallization substances, and the complex disassembly and assembly process will increase the equipment downtime and affect the production efficiency. Some equipment adopts a single-layer filter hole design, and during the separation process, the filter holes are easily blocked or fine crystals escape, resulting in incomplete separation of the mother liquor and crystals, increasing the subsequent processing cost. In the prior art, the addition of reagents mostly relies on manual operation or simple gravity feeding devices, which is difficult to achieve precise control of timing and quantitative dosing. Uneven distribution of reagents easily causes fluctuations in the crystallization nucleation rate, reduces product consistency, and even leads to the mixing of impurities. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to propose a crystallization kettle for chemical production, which optimizes the inner and outer tank structures, introduces a regular reagent addition mechanism and a modular connection design to overcome the deficiencies of the prior art, improve the crystallization efficiency and product quality, and at the same time reduce the maintenance cost and energy consumption.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A crystallization kettle for chemical production, including a reaction crystallization mechanism, a reaction reagent addition mechanism is fixedly connected to the outer side of the top of the reaction crystallization mechanism, a driving block is fixedly connected to one side of the upper part of the reaction crystallization mechanism, a rotating rod is rotatably connected to the upper side of the driving block, a connecting block is fixedly connected to the outer side of the end of the rotating rod away from the driving block, and a cover plate is fixedly connected to the outer side of the connecting block; The reaction crystallization mechanism includes an outer loading component, a bottom driving component fixedly connected to the lower side of the outer loading component, and an inner reaction component arranged inside the outer loading component. A liquid discharge port is fixedly connected to the outer side of one end of the outer loading component close to the bottom driving component; The outer loading component includes a housing fixedly connected to the upper side of the bottom driving component, a first rotating groove opened on the inner wall of the upper part of the housing, and a second rotating groove opened on the inner wall of the lower part of the housing. A bottom plate is fixedly connected to the inner wall of the lower side of the housing; Furthermore, the bottom drive assembly includes a base fixedly connected to the lower side of the outer shell and a motor fixedly connected to the middle of the inner bottom wall of the base. The output end of the motor is fixedly connected with a rotating shaft, and a plurality of rotating blocks are evenly and fixedly connected to the outer periphery of the rotating shaft. The plurality of rotating blocks and the rotating shaft are both arranged above the bottom plate; Furthermore, the inner reaction assembly includes a reaction outer cylinder arranged above the rotating shaft, a reaction inner cylinder arranged inside the reaction outer cylinder, and a plurality of outer filter holes evenly formed in the outer wall of the middle part of the reaction outer cylinder. A plurality of inner filter holes are evenly formed in the outer wall of the reaction inner cylinder. A secondary ring is fixedly connected to the upper outer wall of the reaction outer cylinder, and a main ring is fixedly connected to the lower outer wall of the reaction outer cylinder. Two track through grooves are formed in the upper outer wall of the reaction outer cylinder, and a clamping groove is formed in the outer side of one end of the track through groove close to the secondary ring; Furthermore, a plurality of the outer filter holes are all arranged between the secondary ring and the main ring. The two track through grooves are both arranged above the secondary ring. The two track through grooves are respectively arranged on the opposite sides of the top outer wall of the reaction outer cylinder. The positions of the two track through grooves are centrosymmetric. The main ring is rotatably connected to the middle of the second rotating groove, and the secondary ring is rotatably connected to the middle of the first rotating groove; Furthermore, a convex clamping ring is fixedly connected to the top outer wall of the reaction inner cylinder. Two connecting rods are slidably connected to the middle of the outer side of the upper end of the reaction inner cylinder. A clamping block is fixedly connected to one end of the connecting rod close to the outer shell. A pressing block is fixedly connected to the other end of the connecting rod away from the clamping block. One side of the pressing block close to the inner wall of the reaction inner cylinder is connected to the inner wall of the reaction inner cylinder through a spring. A plurality of crystal stirring rods are evenly and fixedly connected to the lower inner wall of the reaction inner cylinder; Furthermore, the two connecting rods are respectively located on the opposite sides of the upper part of the reaction inner cylinder. The connecting rods are arranged between the convex clamping ring and the inner filter holes. The spring is arranged on the outer periphery of the connecting rods. The two connecting rods are respectively arranged in the middle of the two track through grooves, and the two clamping blocks are respectively arranged in the middle of the two clamping grooves; Furthermore, the reaction reagent adding mechanism includes a regular medicine adding component fixedly connected to one side of the top of the outer shell and a feeding component fixedly connected to the upper side of the regular medicine adding component; The regular medicine adding component includes a fixing plate fixedly connected to the outer side of the top of the outer shell, a loading rack fixedly connected to one end of the fixing plate away from the outer shell, and two fixing blocks fixedly connected to the upper side of the fixing plate. A feeding shovel is rotatably connected between the two fixing blocks. A sliding groove is formed in the outer wall of one side of the feeding shovel close to the loading rack. An electric push rod is fixedly connected to the inner wall of one end of the loading rack away from the fixing plate. The end of the electric push rod away from the inner wall of the loading rack is rotatably connected to a transfer block, and the transfer block is slidably connected to the middle of the sliding groove; Furthermore, the discharge assembly comprises two supporting frames respectively fixedly connected to the two ends of the upper side of the fixing plate and a storage bucket fixedly connected between the upper ends of the two supporting frames, and a medicine outlet is provided at the bottom end of the storage bucket; Furthermore, a cover is hingedly connected to the outer wall of the medicine outlet, a medicine adding port is fixedly connected to the upper side of the storage barrel, and the medicine outlet and the cover are both arranged above the discharge bucket.

[0006] The present invention has the following beneficial effects: In the present invention, a double-layer dynamic stirring structure is formed through a reaction crystallization mechanism. The crystallization stirring rod in the reaction liner rotates with the liner to vigorously mix the solution, eliminate the stirring dead angle, and promote uniform nucleation and crystal growth. During the reaction process, the solution enters the cavity between the reaction outer liner and the outer loading component through the inner filter hole on the outer wall of the reaction liner, and is further filtered through the outer filter hole in the middle of the reaction outer liner. The double-layer filter hole design can effectively intercept crystals of different particle sizes and prevent fine crystals from escaping, while reducing the risk of filter hole clogging. The separated mother liquor is discharged through the drain port, and the crystals are deposited at the bottom of the reaction liner. When needed To disassemble the internal reaction component, press the button on the reaction liner, and the compression of the spring will cause the connecting rod to drive the block out of the slot, so that the reaction liner can be slid out along the track slot for quick disassembly, thereby alleviating the problem that the internal components of traditional crystallization kettles usually adopt a fixed connection method, which is difficult to disassemble. After long-term use, the filter holes are easily blocked by crystals, and the complicated disassembly and assembly process will increase equipment downtime and affect production efficiency. Some equipment adopts a single-layer filter hole design, and the filter holes are prone to blockage or fine crystals escape during the separation process, resulting in incomplete separation of mother liquor and crystals and increased subsequent processing costs.

[0007] In the present invention, the reaction reagent adding mechanism, the driving block, the rotating rod, the connecting block and the cover plate cooperate with each other, so that the regular reagent adding component drives the discharge bucket to feed the reagent in a timely and quantitative manner through the electric push rod, and cooperates with the linkage control of the drug outlet of the storage barrel and the sealing cover to realize the precise delivery of the reagent, thereby alleviating the problem in the prior art that the addition of reagents mostly relies on manual operation or a simple gravity feeding device, which makes it difficult to achieve precise control of timing and quantity, and the uneven distribution of reagents can easily cause fluctuations in the crystallization nucleation rate, reduce product consistency, and even cause impurities to mix in. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 A three-dimensional diagram of a crystallization kettle for chemical production proposed by the present invention; Figure 2 This is a schematic structural diagram of a reaction crystallization mechanism of a crystallization kettle for chemical production proposed by the present invention; Figure 3 This is a schematic structural diagram of an internal reaction component of a crystallization kettle for chemical production proposed by the present invention; Figure 4Schematic diagram of the first rotating groove of a crystallization kettle for chemical production proposed by the present invention; Figure 5 Schematic diagram of the rotating block of a crystallization kettle for chemical production proposed by the present invention; Figure 6 Schematic diagram of the track through-groove of a crystallization kettle for chemical production proposed by the present invention; Figure 7 Schematic diagram of the spring of a crystallization kettle for chemical production proposed by the present invention; Figure 8 Schematic diagram of the regular medicine adding assembly of a crystallization kettle for chemical production proposed by the present invention; Figure 9 Schematic diagram of the discharging assembly of a crystallization kettle for chemical production proposed by the present invention; Figure 10 Schematic diagram of the sliding groove of a crystallization kettle for chemical production proposed by the present invention; Figure 11 Schematic diagram of the discharging bucket of a crystallization kettle for chemical production proposed by the present invention; Figure 12 Schematic diagram of the medicine outlet of a crystallization kettle for chemical production proposed by the present invention; Figure 13 Schematic diagram of the cover of a crystallization kettle for chemical production proposed by the present invention.

[0009] Legend: 1. Reaction crystallization mechanism; 11. Outer loading assembly; 111. Outer shell; 112. Bottom plate; 113. First rotating groove; 114. Second rotating groove; 12. Inner reaction assembly; 121. Reaction outer liner; 122. Reaction inner liner; 123. Outer filter holes; 124. Inner filter holes; 125. Main ring; 126. Sub-ring; 127. Track through-groove; 128. Card slot; 129. Raised snap ring; 1210. Connecting rod; 1211. Snap block; 1212. Pressing block; 1213. Spring; 1214. Crystallization stirring rod; 13. Bottom driving assembly; 131. Base; 132. Motor; 133. Rotating shaft; 134. Rotating block; 14. Drain port; 2. Reaction reagent adding mechanism; 21. Regular medicine adding assembly; 211. Fixed plate; 212. Loading rack; 213. Fixed block; 214. Discharging bucket; 215. Electric push rod; 216. Adapter block; 217. Sliding groove; 22. Discharging assembly; 221. Bearing rack; 222. Storage barrel; 223. Medicine outlet; 224. Cover; 225. Medicine adding port; 3. Driving block; 4. Rotating rod; 5. Connecting block; 6. Cover plate. Detailed implementation manners

[0010] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0011] Referring to Figures 1-13 , an embodiment provided by the present invention: A crystallization kettle for chemical production, including a reaction crystallization mechanism 1, a reaction reagent adding mechanism 2 is fixedly connected to the outer side of the top of the reaction crystallization mechanism 1, a driving block 3 is fixedly connected to one side of the upper part of the reaction crystallization mechanism 1, a rotating rod 4 is rotatably connected to the upper side of the driving block 3, a connecting block 5 is fixedly connected to the outer side of the end of the rotating rod 4 away from the driving block 3, and a cover plate 6 is fixedly connected to the outer side of the connecting block 5; The reaction crystallization mechanism 1 includes an outer loading component 11, a bottom driving component 13 fixedly connected to the lower side of the outer loading component 11, and an inner reaction component 12 arranged inside the outer loading component 11. A liquid discharge port 14 is fixedly connected to the outer side of one end of the outer loading component 11 close to the bottom driving component 13; The outer loading component 11 includes a housing 111 fixedly connected to the upper side of the bottom driving component 13, a first rotating groove 113 opened on the inner wall of the upper part of the housing 111, and a second rotating groove 114 opened on the inner wall of the lower part of the housing 111. A bottom plate 112 is fixedly connected to the inner wall of the lower side of the housing 111.

[0012] The bottom driving component 13 includes a base 131 fixedly connected to the lower side of the housing 111 and a motor 132 fixedly connected to the middle of the inner bottom wall of the base 131. The output end of the motor 132 is fixedly connected to a rotating shaft 133, and a plurality of rotating blocks 134 are evenly and fixedly connected to the outer circumference of the rotating shaft 133. The plurality of rotating blocks 134 and the rotating shaft 133 are both arranged on the upper side of the bottom plate 112.

[0013] The inner reaction component 12 includes a reaction outer cylinder 121 arranged above the rotating shaft 133, a reaction inner cylinder 122 arranged inside the reaction outer cylinder 121, and a plurality of outer filter holes 123 evenly formed in the outer wall of the middle part of the reaction outer cylinder 121. A plurality of inner filter holes 124 are evenly formed in the outer wall of the reaction inner cylinder 122. A secondary ring 126 is fixedly connected to the upper outer wall of the reaction outer cylinder 121, and a main ring 125 is fixedly connected to the lower outer wall of the reaction outer cylinder 121. Two track through slots 127 are formed in the upper end outer wall of the reaction outer cylinder 121. A clamping slot 128 is formed outside one end of the track through slot 127 close to the secondary ring 126. When the motor 132 in the bottom drive component 13 is started, the motor 132 drives the rotating shaft 133 and a plurality of rotating blocks 134 fixed thereon to rotate. The rotation of the rotating shaft 133 drives the reaction outer cylinder 121 to rotate in the housing 111 through the cooperation of the main ring 125 and the second rotating slot 114 and the cooperation of the secondary ring 126 and the first rotating slot 113, and the reaction inner cylinder 122 rotates synchronously, forming a double-layer dynamic stirring structure. The reaction liquid is added into the storage barrel 222 through the medicine adding port 225. The medicine outlet 223 at the bottom of the storage barrel 222 is controlled to be opened by the sealing cover 224. When the electric push rod 215 pushes the adapter block 216 to slide in the sliding slot 217 of the feeding shovel 214, the feeding shovel 214 rotates around the fixed block 213, and the medicine is accurately poured into the reaction inner cylinder 122. The crystal stirring rod 1214 in the reaction inner cylinder 122 rotates with the inner cylinder, strongly mixing the solution, eliminating the stirring dead angle, and promoting uniform nucleation and crystal growth.

[0014] A plurality of outer filter holes 123 are all arranged between the secondary ring 126 and the main ring 125. Two track through slots 127 are both arranged above the secondary ring 126. The two track through slots 127 are respectively arranged on the opposite sides of the top outer wall of the reaction outer cylinder 121. The positions of the two track through slots 127 are centrosymmetric. The main ring 125 is rotatably connected to the middle of the second rotating slot 114, and the secondary ring 126 is rotatably connected to the middle of the first rotating slot 113. During the reaction process, the solution enters the cavity between the reaction outer cylinder 121 and the outer loading component 11 through the inner filter holes 124 on the outer wall of the reaction inner cylinder 122, and is further filtered through the outer filter holes 123 in the middle of the reaction outer cylinder 121. The double-layer filter hole design can effectively intercept crystals with different particle sizes, prevent fine crystals from escaping, and reduce the risk of filter hole blockage at the same time.

[0015] A convex clamping ring 129 is fixedly connected to the top outer wall of the reaction inner cylinder 122. Two connecting rods 1210 are slidably connected to the middle part of the outer side of the upper end of the reaction inner cylinder 122. A clamping block 1211 is fixedly connected to one end of the connecting rod 1210 close to the housing 111. A pressing block 1212 is fixedly connected to the other end of the connecting rod 1210 away from the clamping block 1211. One side of the pressing block 1212 close to the inner wall of the reaction inner cylinder 122 is connected to the inner wall of the reaction inner cylinder 122 through a spring 1213. A plurality of crystal stirring rods 1214 are evenly and fixedly connected to the lower inner wall of the reaction inner cylinder 122.

[0016] Two connecting rods 1210 are respectively located on opposite sides of the upper part of the reaction inner tank 122. The connecting rods 1210 are arranged between the raised snap ring 129 and the inner filter holes 124. Springs 1213 are arranged on the outer periphery of the connecting rods 1210. The two connecting rods 1210 are respectively arranged in the middle parts of the two track through grooves 127. The two clamping blocks 1211 are respectively arranged in the middle parts of the two clamping grooves 128. The separated mother liquor is discharged through the liquid discharge port 14, and the crystals are deposited at the bottom of the reaction inner tank 122. When it is necessary to disassemble the inner reaction assembly 12, press the pressing block 1212 on the reaction inner tank 122. By compressing the spring 1213, the connecting rod 1210 drives the clamping block 1211 to disengage from the clamping groove 128, and then the reaction inner tank 122 can be slid out along the track through groove 127 to achieve rapid disassembly.

[0017] The reaction reagent adding mechanism 2 includes a regular medicine adding component 21 fixedly connected to one side of the top end of the outer shell 111 and a feeding component 22 fixedly connected to the upper side of the regular medicine adding component 21; The regular medicine adding component 21 includes a fixing plate 211 fixedly connected to the outer side of the top end of the outer shell 111, a loading rack 212 fixedly connected to the end of the fixing plate 211 away from the outer shell 111, and two fixing blocks 213 fixedly connected to the upper side of the fixing plate 211. A discharging shovel 214 is rotatably connected between the two fixing blocks 213. A sliding groove 217 is formed in the outer wall of the discharging shovel 214 close to the loading rack 212. An electric push rod 215 is fixedly connected to the inner wall of the end of the loading rack 212 away from the fixing plate 211. The end of the electric push rod 215 away from the inner wall of the loading rack 212 is rotatably connected to a transfer block 216, and the transfer block 216 is slidably connected to the middle of the sliding groove 217.

[0018] The feeding component 22 includes two bearing racks 221 respectively fixedly connected to both ends of the upper side of the fixing plate 211 and a storage barrel 222 fixedly connected between the upper ends of the two bearing racks 221. A medicine outlet 223 is formed at the bottom end of the storage barrel 222.

[0019] The outer wall of the medicine outlet 223 is hingedly connected with a cover 224, and the upper side of the storage barrel 222 is fixedly connected with a medicine adding port 225. The medicine outlet 223 and the cover 224 are both arranged above the discharge bucket 214. A timing program is set for the electric push rod 215 connected to the discharge bucket 214 to push the medicine adding at a time and pull it back to its original position after the discharge bucket 214 is dumped. The adapter block 216 and the slide groove 217 at the connection between the electric push rod 215 and the discharge bucket 214 can prevent the discharge bucket 214 from being affected by the electric push rod 215 when dumping. At the same time, a program is set for the cover plate 6 so that the cover plate 6 is consistent with the dumping rule of the discharge bucket 214, and the cover plate 6 is unscrewed when the discharge bucket 214 is dumped. To facilitate the addition of medicines, the end of the discharge bucket 214 close to the shell 111 is longer. When the discharge bucket 214 is full of medicines, the discharge bucket 214 will tip toward the shell 111 due to the difference in gravity at both ends. When tipping, the other end of the discharge bucket 214 will tilt up to close the cover 224 at the bottom of the storage barrel 222, so that the storage barrel 222 stops leaking medicines when the discharge bucket 214 tips over, avoiding the storage barrel 222 from leaking medicines falling out of the discharge bucket 214 due to the tipping and displacement of the discharge bucket 214, resulting in medicine waste. The regular medicine adding component 21 controls the inclination angle and frequency of the discharge bucket 214 through the extension and retraction of the electric push rod 215, so as to realize timed and quantitative feeding and improve the uniformity of medicine distribution.

[0020] Working principle: The motor 132 in the bottom drive assembly 13 is turned on, and the motor 132 drives the rotating shaft 133 and the multiple rotating blocks 134 fixed thereon to rotate. The rotation of the rotating shaft 133 drives the reaction outer liner 121 to rotate in the outer shell 111 through the cooperation between the main ring 125 and the rotating groove 2 114 and the cooperation between the secondary ring 126 and the rotating groove 1 113, and the reaction inner liner 122 rotates synchronously to form a double-layer dynamic stirring structure. The reaction liquid is added to the storage barrel 222 through the medicine adding port 225, and the medicine outlet 223 at the bottom of the storage barrel 222 is controlled to open by the cover 224. When the electric push rod 215 pushes the adapter block 216 to slide in the slide groove 217 of the discharge bucket 214, the discharge bucket 214 rotates around the fixed block 213 to accurately pour the medicine into the reaction inner liner. 122, the crystal stirring rod 1214 in the reaction liner 122 rotates with the liner to vigorously mix the solution, eliminate the stirring dead corner, and promote uniform nucleation and crystal growth. During the reaction process, the solution enters the cavity between the reaction outer liner 121 and the outer loading component 11 through the inner filter hole 124 on the outer wall of the reaction liner 122, and is further filtered through the outer filter hole 123 in the middle of the reaction outer liner 121. The double-layer filter hole design can effectively intercept crystals of different particle sizes, prevent fine crystals from escaping, and reduce the risk of filter hole clogging. The separated mother liquid is discharged through the drain port 14, and the crystals are deposited at the bottom of the reaction liner 122. When the inner reaction component 12 needs to be disassembled, the button 1212 on the reaction liner 122 is pressed, and the connecting rod is compressed by the spring 1213. 1210 drives the card block 1211 to disengage from the card slot 128, so that the reaction liner 122 can be slid out along the track slot 127 to achieve quick disassembly. This design avoids the cumbersome disassembly and assembly process of the traditional fixed connection structure, significantly shortens the maintenance time, and sets a timing program for the electric push rod 215 connected to the discharge bucket 214 to push the medicine addition at a fixed time and pull it back to its original position after the discharge bucket 214 is dumped. The adapter block 216 and the slide slot 217 at the connection between the electric push rod 215 and the discharge bucket 214 can prevent the discharge bucket 214 from being affected by the electric push rod 215 when dumping. At the same time, a program is set for the cover plate 6 so that the cover plate 6 is consistent with the dumping rule of the discharge bucket 214. When the discharge bucket 214 is dumped, the cover plate 6 is unscrewed to facilitate the addition of medicine. The end of the bucket 214 close to the shell 111 is longer. When the medicine in the discharge bucket 214 is full, due to the difference in gravity at both ends, the discharge bucket 214 dumps toward the shell 111. When dumping, the other end of the discharge bucket 214 tilts up, closing the cover 224 at the bottom of the storage barrel 222, so that the storage barrel 222 stops leaking medicine when the discharge bucket 214 dumps, avoiding the storage barrel 222 from dropping out of the discharge bucket 214 due to the dumping and displacement of the discharge bucket 214, resulting in medicine waste. The regular medicine adding component 21 controls the inclination angle and frequency of the discharge bucket 214 through the extension and contraction of the electric push rod 215, realizing timed and quantitative feeding, improving the uniformity of medicine distribution, avoiding excessive local concentration or fluctuation of nucleation rate, and ensuring the stability of the crystallization process.The double-layer rotating inner tank and the crystallization stirring rod 1214 cooperate to enhance the solution turbulence and improve the mixing efficiency. The mechanical linkage between the electric push rod 215 and the chute 217 realizes the precise dosing of the reagent, improves the product consistency. The modular design of the spring 1213 and the chuck 1211 simplifies the inner tank disassembly process and reduces the downtime. The optimized layout of the rotating block 134 and the rotating shaft 133 reduces the friction loss. The motor 132 can adjust the speed according to the crystallization stage, reducing the energy consumption. Through the above working principle, the present invention solves the problems of uneven mixing, easy blockage of filter holes, and complex maintenance in the traditional crystallization kettle, significantly improves the crystallization efficiency and product quality, and is applicable to the large-scale production of high-purity chemical products.

[0021] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A crystallization kettle for chemical production, comprising a reaction crystallization mechanism (1), characterized in that: A reaction chemical addition mechanism (2) is fixedly connected to the outer side of the top of the reaction crystallization mechanism (1). A driving block (3) is fixedly connected to one side of the upper part of the reaction crystallization mechanism (1). A rotating rod (4) is rotatably connected to the upper side of the driving block (3). A connecting block (5) is fixedly connected to the outer side of the end of the rotating rod (4) away from the driving block (3). A cover plate (6) is fixedly connected to the outer side of the connecting block (5). The reaction crystallization mechanism (1) includes an outer loading component (11), a bottom driving component (13) fixedly connected to the lower side of the outer loading component (11), and an inner reaction component (12) arranged inside the outer loading component (11). A liquid discharge port (14) is fixedly connected to the outer side of one end of the outer loading component (11) close to the bottom driving component (13). The outer loading component (11) includes a housing (111) fixedly connected to the upper side of the bottom driving component (13), a first rotating groove (113) opened on the inner wall of the upper part of the housing (111), and a second rotating groove (114) opened on the inner wall of the lower part of the housing (111). A bottom plate (112) is fixedly connected to the inner wall of the lower side of the housing (111).

2. The crystallization kettle for chemical production according to claim 1, characterized in that: The bottom driving component (13) includes a base (131) fixedly connected to the lower side of the housing (111) and a motor (132) fixedly connected to the middle of the inner bottom wall of the base (131). An output end of the motor (132) is fixedly connected to a rotating shaft (133). A plurality of rotating blocks (134) are evenly and fixedly connected to the outer circumference of the rotating shaft (133). The plurality of rotating blocks (134) and the rotating shaft (133) are both arranged on the upper side of the bottom plate (112).

3. The crystallization kettle for chemical production according to claim 2, characterized in that: The inner reaction component (12) includes a reaction outer cylinder (121) arranged on the upper side of the rotating shaft (133), a reaction inner cylinder (122) arranged inside the reaction outer cylinder (121), and a plurality of outer filter holes (123) evenly opened on the outer wall of the middle part of the reaction outer cylinder (121). A plurality of inner filter holes (124) are evenly opened on the outer wall of the reaction inner cylinder (122). An auxiliary ring (126) is fixedly connected to the outer wall of the upper part of the reaction outer cylinder (121). A main ring (125) is fixedly connected to the outer wall of the lower part of the reaction outer cylinder (121). Two track through grooves (127) are opened on the outer wall of the upper end of the reaction outer cylinder (121). A clamping groove (128) is opened on the outer side of one end of the track through groove (127) close to the auxiliary ring (126).

4. The crystallization kettle for chemical production according to claim 3, characterized in that: The plurality of outer filter holes (123) are all arranged between the auxiliary ring (126) and the main ring (125). The two track through grooves (127) are both arranged on the upper side of the auxiliary ring (126). The two track through grooves (127) are respectively arranged on the opposite sides of the outer wall of the top end of the reaction outer cylinder (121). The positions of the two track through grooves (127) are centrosymmetric. The main ring (125) is rotatably connected to the middle of the second rotating groove (114). The auxiliary ring (126) is rotatably connected to the middle of the first rotating groove (113).

5. The crystallization kettle for chemical production according to claim 3, characterized in that: A convex snap ring (129) is fixedly connected to the outer wall of the top end of the reaction inner tank (122). Two connecting rods (1210) are slidably connected to the middle part of the outer side of the upper end of the reaction inner tank (122). One end of the connecting rod (1210) close to the outer shell (111) is fixedly connected with a clamping block (1211). One end of the connecting rod (1210) far from the clamping block (1211) is fixedly connected with a pressing block (1212). One side of the pressing block (1212) close to the inner wall of the reaction inner tank (122) is connected to the inner wall of the reaction inner tank (122) through a spring (1213). A plurality of crystallization stirring rods (1214) are evenly and fixedly connected to the lower inner wall of the reaction inner tank (122).

6. The crystallization kettle for chemical production according to claim 5, characterized in that: The two connecting rods (1210) are respectively located on the opposite sides of the upper part of the reaction inner tank (122). The connecting rods (1210) are arranged between the convex snap ring (129) and the inner filter holes (124). The spring (1213) is arranged on the outer periphery of the connecting rods (1210). The two connecting rods (1210) are respectively arranged in the middle parts of the two track through grooves (127). The two clamping blocks (1211) are respectively arranged in the middle parts of the two clamping grooves (128).

7. The crystallization kettle for chemical production according to claim 1, characterized in that: The reaction reagent adding mechanism (2) includes a regular medicine adding component (21) fixedly connected to one side of the top end of the outer shell (111) and a feeding component (22) fixedly connected to the upper side of the regular medicine adding component (21). The regular medicine adding component (21) includes a fixed plate (211) fixedly connected to the outer side of the top end of the outer shell (111), a loading rack (212) fixedly connected to one end of the fixed plate (211) far from the outer shell (111), and two fixing blocks (213) fixedly connected to the upper side of the fixed plate (211). A feeding shovel (214) is rotatably connected between the two fixing blocks (213). A chute (217) is formed on the outer wall of one side of the feeding shovel (214) close to the loading rack (212). An electric push rod (215) is fixedly connected to the inner wall of one end of the loading rack (212) far from the fixed plate (211). One end of the electric push rod (215) far from the inner wall of the loading rack (212) is rotatably connected to a transfer block (216). The transfer block (216) is slidably connected to the middle part of the chute (217).

8. The crystallization kettle for chemical production according to claim 7, characterized in that: The feeding component (22) includes two bearing frames (221) respectively fixedly connected to the two ends of the upper side of the fixed plate (211) and a storage barrel (222) fixedly connected between the upper ends of the two bearing frames (221). A medicine outlet (223) is formed at the bottom end of the storage barrel (222).

9. The crystallization kettle for chemical production according to claim 8, characterized in that: A cover (224) is hingedly connected to the outer wall of the medicine outlet (223). A medicine adding port (225) is fixedly connected to the upper side of the storage barrel (222). The medicine outlet (223) and the cover (224) are both arranged above the feeding shovel (214).

Citation Information

Patent Citations

  • Converter alloy material adding device

    CN218951427U

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    CN219816129U