A clog-resistant cooling crystallizer
By introducing a stirring rod, threaded sleeve, and scraper into the cooling crystallizer, the problem of crystal blockage at the discharge port was solved, ensuring smooth discharge and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIFANG QIANGYUAN CHEM IND CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-17
AI Technical Summary
When using existing cooling crystallizers, crystals tend to stick to the bottom and cause blockage at the discharge port, affecting the output.
A structure including a stirring rod, a threaded sleeve, a limiting ring, and a scraper is designed. The stirring rod is driven by a motor to rotate and combined with the threaded transmission, which drives the scraper to scrape the bottom of the tank to prevent crystals from clogging the discharge port. At the same time, a feeding auger is used to transport materials to prevent blockage.
It effectively prevents blockage at the outlet of the cooling crystallizer, ensures smooth material discharge, and improves production efficiency.
Smart Images
Figure CN224506312U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of cooling crystallizers, specifically a clogging-proof cooling crystallizer. Background Technology
[0002] A cooling crystallizer is a device used to induce supersaturation in materials by lowering their temperature, thereby promoting crystallization. It is primarily suitable for systems where the solubility decreases significantly with decreasing temperature. The working principle of a cooling crystallizer is to cool the solution to a supersaturated state, causing crystals to precipitate from the solution. In the production of magnesium carbonate, a solution method is used, which includes an evaporation crystallization step. In this process, the mixture is evaporated to a certain solution concentration using a high-temperature, low-pressure evaporator, and finally, basic magnesium carbonate is obtained through cooling crystallization.
[0003] During magnesium carbonate production, crystals are precipitated from the magnesium carbonate solution using a cooling crystallizer. However, in existing cooling crystallizers, some crystals adhere to the bottom, causing blockage at the outlet. Furthermore, a large amount of crystals tends to accumulate at the outlet during discharge, affecting the output. Summary of the Invention
[0004] The purpose of this invention is to provide a clog-resistant cooling crystallizer to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-clogging cooling crystallizer, comprising a tank body and a feeding mechanism, wherein an outer tank is fixedly connected to the outside of the tank body, and a discharge port is connected to the bottom of the tank body. Both the inner and outer tanks are connected by feed pipes. A cooling water inlet is connected to one side of the top of the outer tank, and a cooling water outlet is connected to one side of the bottom of the outer tank. A stirring rod is movably connected to the top of the tank via a bearing. A bracket is fixedly connected to the top of the tank, and a motor is installed at the bottom of the bracket. A drive gear is fixedly connected to the output end of the motor. A driven gear is meshed with the outer side of the drive gear. The driven gear is fixedly connected to the stirring rod. A moving rod is slidably connected inside the stirring rod. The moving rod is rectangular in shape and has a feeding mechanism at its bottom. A fixed rod is fixedly connected to one side of the bottom of the moving rod. A scraper is fixedly connected to one end of the fixed rod and is located at the bottom of the tank. The outer side of the fixed rod is slidably connected to the stirring rod.
[0006] Preferably, a threaded rod is fixedly connected to the top of the stirring rod, a threaded sleeve is threadedly connected to the outer side of the threaded rod, and a limit ring is fixedly connected to the top of the threaded sleeve.
[0007] Preferably, a connecting block is slidably connected to the outer side of the limiting ring, and the bottom of the connecting block is fixedly connected to the moving rod.
[0008] Preferably, the feeding mechanism includes a connecting sleeve that is slidably connected to the bottom of the moving rod, and a spring is fixedly connected inside the connecting sleeve.
[0009] Preferably, the top of the spring abuts against the moving rod, and a fixing block is fixedly connected to the bottom of the connecting sleeve, with a slot provided at the bottom of the fixing block.
[0010] Preferably, a card block is provided at the bottom of the card slot, and a feeding auger is fixedly connected to the bottom of the card block.
[0011] Preferably, the outer side of the feeding auger is fixedly connected to the inner side of the discharge port through a connecting frame and a bearing, and the outer side of the clamping block is in the shape of annular teeth.
[0012] Compared with the prior art, the beneficial effects of this utility model are: In use, to promote mass transfer and mixing between the solute and solvent, the motor is started, driving the drive gear to rotate, which in turn meshes with the driven gear, thereby driving the driven gear and its internal stirring rod to rotate, and stirring the interior through the stirring rod. During discharge, the threaded sleeve and threaded rod are rotated for threaded transmission, and the limiting ring drives the threaded sleeve and its top connecting block to move down. The connecting block drives the moving rod to move down, and the fixed rod at the bottom of the moving rod drives the scraper to contact the conical surface at the bottom of the tank, thereby scraping the bottom of the tank, causing the crystals to detach, and preventing blockage of the discharge port. Attached Figure Description
[0013] Figure 1 This is a three-dimensional cross-sectional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a three-dimensional cross-sectional view of the stirring rod of this utility model; Figure 4 This is a three-dimensional cross-sectional view of the connecting sleeve of this utility model; Figure 5 This utility model Figure 3 A magnified structural diagram of point A in the middle.
[0014] In the diagram: 1. Tank body; 2. Outer tank; 3. Discharge port; 4. Feed pipe; 5. Cooling water inlet; 6. Cooling water outlet; 7. Stirring rod; 8. Support; 9. Motor; 10. Drive gear; 11. Driven gear; 12. Moving rod; 13. Feeding mechanism; 131. Connecting sleeve; 132. Spring; 133. Fixing block; 134. Slot; 135. Locking block; 136. Feeding auger; 14. Fixing rod; 15. Scraper; 16. Threaded rod; 17. Threaded sleeve; 18. Connecting block; 19. Limiting ring. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] Please see Figures 1-5 This utility model provides a technical solution: an anti-clogging cooling crystallizer, including a tank body 1 and a feeding mechanism 13, an outer tank 2 fixedly connected to the outside of the tank body 1, and a discharge port 3 connected to the bottom of the tank body 1. Both the tank body 1 and the outer tank 2 are internally connected to a feed pipe 4. A cooling water inlet 5 is internally connected to one side of the top of the outer tank 2, and a cooling water outlet 6 is internally connected to one side of the bottom of the outer tank 2. A stirring rod 7 is movably connected to the top of the tank body 1 via a bearing. A bracket 8 is fixedly connected to the top of the tank body 1. A motor 9 is installed at the bottom of the bracket 8. A drive gear 10 is fixedly connected to the output end of the motor 9. A driven gear 11 is meshed with the outer side of the drive gear 10. The driven gear 11 is fixedly connected to the stirring rod 7. A moving rod 12 is slidably connected inside the stirring rod 7. The moving rod 12 is rectangular in shape. A feeding mechanism 13 is provided at the bottom of the moving rod 12. A fixed rod 14 is fixedly connected to one side of the bottom of the moving rod 12. A scraper 15 is fixedly connected to one end of the fixed rod 14. The scraper 15 is located at the bottom of the tank body 1. The outer side of the fixed rod 14 is slidably connected to the stirring rod 7. A threaded rod 16 is fixedly connected to the top of the stirring rod 7. A threaded sleeve 17 is threadedly connected to the outer side of the threaded rod 16. A limiting ring 19 is fixedly connected to the top of the threaded sleeve 17. A connecting block 18 is slidably connected to the outer side of the limiting ring 19. The bottom of the connecting block 18 is fixedly connected to the moving rod 12. A rectangular groove matching the moving rod 12 is opened inside the stirring rod 7. The moving rod 12 and the stirring rod 7 form a sliding structure. The driving gear 10 and the driven gear 11 form a meshing transmission structure. An annular groove matching the limiting ring 19 is opened at the bottom of the connecting block 18. The feeding mechanism 13 includes a connecting sleeve slidably connected to the bottom of the moving rod 12. 131. A spring 132 is fixedly connected inside the connecting sleeve 131. The top of the spring 132 abuts against the moving rod 12. A fixing block 133 is fixedly connected to the bottom of the connecting sleeve 131. A slot 134 is provided at the bottom of the fixing block 133. A locking block 135 is provided at the bottom of the slot 134. A feeding auger 136 is fixedly connected to the bottom of the locking block 135. The outer side of the feeding auger 136 is fixedly connected to the inner side of the discharge port 3 through a connecting frame and a bearing. The outer side of the locking block 135 is annularly toothed. A sliding groove matching the moving rod 12 is provided inside the connecting sleeve 131. The connecting sleeve 131 and the moving rod 12 form a sliding structure.
[0017] In practice, during the production of magnesium carbonate in chemical enterprises, crystals are precipitated from the magnesium carbonate solution using a cooling crystallizer. When using the cooling crystallizer, in order to promote mass transfer and mixing between the solute and solvent, the motor 9 is started, which drives the drive gear 10 to rotate, causing the drive gear 10 to mesh with the driven gear 11, thereby driving the driven gear 11 and its internal stirring rod 7 to rotate, and stirring the internal parts through the stirring rod 7. When discharging, the threaded sleeve 17 and the threaded rod 16 are driven by threaded transmission, and the threaded sleeve 17 and its top connecting block 18 are moved down through the limiting ring 19. The connecting block 18 will drive the moving rod 12 to move down, and the fixed rod 14 at the bottom of the moving rod 12 will drive the scraper 15 to contact the conical surface at the bottom of the tank 1, thereby scraping the bottom of the tank 1, causing the crystals to detach, and preventing blockage of the discharge port 3. When the moving rod 12 moves down, it also drives the connecting sleeve 131 and the fixing block 133 to move down. When the slot 134 inside the fixing block 133 is misaligned with the locking block 135, the fixing block 133 will slide on the outside of the moving rod 12 and squeeze the spring 132. When the motor 9 drives the stirring rod 7 to rotate, the fixing block 133 will also rotate. When the slot 134 rotates to the angle corresponding to the locking block 135, the spring 132 will reset and push the fixing block 133 down, so that the slot 134 and the locking block 135 are engaged. At this time, the locking block 135 and the feeding auger 136 will also rotate and transport the material entering the discharge port 3 to prevent the material from being blocked at the discharge port 3. In this way, the above operation can facilitate the anti-blockage treatment at the discharge port 3 and ensure the smooth discharge.
[0018] In summary: When using this utility model, the material is fed into the tank 1 through the feed pipe 4. After the material is stirred and mixed by the stirring rod 7, cooling water can be sent into the outer tank 2 through the cooling water inlet 5 to cool the tank 1, causing crystals to precipitate from the magnesium carbonate solution. The cooling water can be discharged through the cooling water outlet 6. The contents not described in detail in this description belong to the prior art known to those skilled in the art.
[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A clog-resistant cooling crystallizer, comprising a tank (1) and a feeding mechanism (13), wherein an outer tank (2) is fixedly connected to the outside of the tank (1), and a discharge port (3) is connected to the bottom of the tank (1), characterized in that, Both the inner tank (1) and the outer tank (2) are connected by inlet pipes (4). A cooling water inlet (5) is connected to one side of the top of the outer tank (2), and a cooling water outlet (6) is connected to one side of the bottom of the outer tank (2). A stirring rod (7) is movably connected to the top of the tank (1) via a bearing. A bracket (8) is fixedly connected to the top of the tank (1). A motor (9) is installed at the bottom of the bracket (8). A drive gear (10) is fixedly connected to the output end of the motor (9). The outer side of the drive gear (10) is meshed with a... Driven gear (11), the interior of which is fixedly connected to stirring rod (7), and a moving rod (12) is slidably connected inside stirring rod (7). The moving rod (12) is rectangular in shape, and a feeding mechanism (13) is provided at the bottom of the moving rod (12). A fixed rod (14) is fixedly connected to one side of the bottom of the moving rod (12). A scraper (15) is fixedly connected to one end of the fixed rod (14). The scraper (15) is located at the bottom of the tank (1), and the outer side of the fixed rod (14) is slidably connected to stirring rod (7).
2. A clog resistant cooling crystallizer according to claim 1, wherein: The top of the stirring rod (7) is fixedly connected to a threaded rod (16), and the outer side of the threaded rod (16) is threadedly connected to a threaded sleeve (17). The top of the threaded sleeve (17) is fixedly connected to a limit ring (19).
3. A clog resistant cooling crystallizer according to claim 2, wherein: The outer side of the limiting ring (19) is slidably connected to a connecting block (18), and the bottom of the connecting block (18) is fixedly connected to the moving rod (12).
4. A clog resistant cooling crystallizer according to claim 1, wherein: The feeding mechanism (13) includes a connecting sleeve (131) that is slidably connected to the bottom of the moving rod (12), and a spring (132) is fixedly connected inside the connecting sleeve (131).
5. A clog resistant cooling crystallizer according to claim 4, wherein: The top of the spring (132) abuts against the moving rod (12), and the bottom of the connecting sleeve (131) is fixedly connected to a fixing block (133), and the bottom of the fixing block (133) is provided with a slot (134).
6. A clog resistant cooling crystallizer according to claim 5, wherein: The bottom of the slot (134) is provided with a card block (135), and the bottom of the card block (135) is fixedly connected to a feeding auger (136).
7. A clog resistant cooling crystallizer according to claim 6, wherein: The outer side of the feeding auger (136) is fixedly connected to the inner side of the discharge port (3) through a connecting frame and bearings, and the outer side of the clamp (135) is in the shape of annular teeth.