Centrifugal separation method for magnesium sulfate production and processing
By using atomization dispersion, reverse rotation feeding, and a built-in phase change temperature control structure, combined with scraper cleaning, the problems of incomplete slurry separation and equipment clumping in magnesium sulfate production are solved, achieving efficient and stable magnesium sulfate crystal production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIANGSU QINFEN PHARMA
- Filing Date
- 2026-04-01
- Publication Date
- 2026-05-05
AI Technical Summary
In the existing magnesium sulfate production and processing, centrifugal separation equipment suffers from problems such as slurry accumulation and uneven dispersion, incomplete solid-liquid separation, high moisture content in the finished product, insufficient crystal purity, and the equipment is prone to clumping, resulting in high operation and maintenance costs and difficulty in cleaning.
It adopts an adjustable atomization dispersion and reverse rotation feeding method, combined with a built-in phase change temperature control structure and material turning and cleaning structure to achieve uniform slurry spreading and efficient separation. It utilizes phase change materials to absorb frictional heat to avoid agglomeration, and cleans the accumulated material on the inner wall through a scraper.
It significantly improves the thoroughness of solid-liquid separation, reduces the water content of solid products, increases crystal purity, simplifies equipment structure, reduces operation and maintenance costs, extends equipment life, and ensures continuous and efficient operation.
Smart Images
Figure CN121972306A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of magnesium sulfate production technology, specifically to a centrifugal separation method for magnesium sulfate production and processing. Background Technology
[0002] In the industrial production and processing of magnesium sulfate, centrifugal separation is a key process for achieving solid-liquid separation of slurry and purification of magnesium sulfate crystals. Currently, most conventional centrifugal separation equipment adopts a direct-feed structure, in which the slurry is directly fed into the centrifugal drum. This can easily lead to slurry accumulation and uneven dispersion, resulting in excessively thick slurry in some areas. As a result, the centrifugal force cannot be fully utilized, the solid-liquid separation is incomplete, the finished product has a high water content, and the crystal purity is insufficient.
[0003] During operation, traditional centrifuges suffer from frictional heat generated by the high-speed rotation of the drum, which is difficult to dissipate. Local temperatures can easily exceed the stable range of magnesium sulfate crystals, causing crystal melting and agglomeration, affecting product quality. Adding an external cooling structure complicates the overall structure of the equipment, increases maintenance costs, and raises the probability of failure. Meanwhile, high-concentration magnesium sulfate slurry easily adheres to the inner wall of the drum during centrifugation. Long-term accumulation forms scale, clogging the drum's screening holes. This not only reduces centrifugation efficiency but also causes uneven stress on the drum, vibration, and even damage to the equipment. Conventional equipment lacks suitable internal wall cleaning and material agitation structures, making manual cleaning difficult and time-consuming, which is insufficient to meet the demands of continuous and high-efficiency production.
[0004] Therefore, we propose a centrifugal separation method for magnesium sulfate production and processing. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this invention provides a centrifugal separation method for magnesium sulfate production and processing. By setting up a feeding and centrifugal structure that works in conjunction with the centrifugal process, compared to the traditional direct-fall feeding method, this invention employs an adjustable atomization dispersion and counter-rotating feeding method. This method can evenly disperse the slurry and spread it thinly and evenly on the inner wall of the centrifugal drum, ensuring that each part of the slurry is fully subjected to centrifugal force. This significantly improves the thoroughness of solid-liquid separation, effectively reduces the moisture content of the solid product, and increases the purity of magnesium sulfate crystals. At the same time, the feeding parameters can be adjusted according to the slurry concentration to adapt to the separation of magnesium sulfate slurries of different concentrations, thus expanding the applicability of the centrifugal separation equipment.
[0006] To achieve the above objectives, the present invention provides a centrifugal separation method for magnesium sulfate production and processing, comprising the following steps: Step 1: Activate the movable servo electric cylinders on both sides of the top of the fixed mounting frame. Drive the movable connecting frame downward through the electric cylinder drive end. With the help of the movable slide rod guide limit, the movable feed pipe slides down along the fixed feed pipe, and sends the rotating feed rack into the appropriate position inside the centrifugal drum. Adjust the opening of the feed control plate according to the concentration of magnesium sulfate slurry. Drive the feed control plate to rotate by controlling the servo motor to adjust the discharge size of the feed port to adapt to the dispersion feeding requirements of slurry with different concentrations. Step 2: Open the slurry conveying pipeline. The magnesium sulfate production slurry enters the fixed feeding pipe through the material conveying interface, and then flows into the atomization chamber inside the rotating distribution frame through the movable feeding pipe. At the same time, external gas enters the upper air guide chamber through the air inlet, flows into the lower air guide chamber through the air guide channel and air guide pipe, and finally is sprayed into the atomization chamber through the air inlet nozzle to atomize and disperse the slurry in the chamber. Start the distribution drive motor, which drives the rotating connecting block and the rotating distribution frame to rotate through the meshing of the gear and drive gear ring. The rotating distribution frame is controlled to rotate in the opposite direction to the centrifugal drum. The atomized and dispersed slurry is evenly and tangentially fed into the inner wall of the centrifugal drum through the distribution port to form a thin and uniform liquid film. Step 3: Start the centrifugal drive motor on one side of the top of the separator casing. The drive gear meshes with the drive tooth groove on the outer periphery of the drive connecting frame to drive the centrifugal drum to rotate at high speed. Centrifugal force is used to separate the magnesium sulfate slurry. The separated centrifugal liquid enters the separation chamber through the centrifugal separation hole, and then is collected through the centrifugal liquid outlet and discharged through the centrifugal liquid discharge pipe. During the separation process, the phase change material inside the phase change heat exchange chamber automatically absorbs the heat generated by centrifugal friction using the latent heat of phase change. Step 4: During the centrifugal separation process, start the auxiliary processing component. The linear slide inside the drive frame moves the sliding frame down, extending the auxiliary frame into both sides of the centrifugal drum. Then, adjust the position of the auxiliary frame by the linear slide at the bottom of the sliding frame so that the rotating scraper is close to the inner wall of the centrifugal drum. Start the auxiliary motor to drive the rotating scraper to rotate, scraping the solid material accumulated on the inner wall into the auxiliary frame. The material is fed in through the scraper port and discharged through the discharge port. Step 5: After the magnesium sulfate slurry is completely centrifuged, stop the slurry conveying and external air supply in sequence, and turn off the centrifugal drive motor, the material distribution drive motor and the auxiliary motor. After the centrifugal drum has completely stopped rotating, open the discharge control valve inside the separation material discharge pipe, and discharge the centrifuged magnesium sulfate solid product through the separation material discharge pipe for collection, thus completing the centrifugal separation operation of the entire batch of materials.
[0007] Compared with existing technologies, it has the following advantages: 1. By setting up a feeding and centrifugal combination structure, compared with the traditional direct-fall feeding method, the adjustable atomization dispersion and reverse rotation feeding method can evenly disperse the slurry and spread it thinly and evenly on the inner wall of the centrifugal drum. This allows each part of the slurry to be fully subjected to centrifugal force, greatly improving the thoroughness of solid-liquid separation, effectively reducing the water content of the solid product, and improving the purity of magnesium sulfate crystals. At the same time, the feeding parameters can be adjusted according to the slurry concentration to adapt to the separation operation of magnesium sulfate slurry of different concentrations, thus improving the applicability of the centrifugal separation equipment.
[0008] 2. By adopting a built-in phase change temperature control structure, relying on the latent heat of phase change of the phase change material itself, it automatically absorbs the frictional heat generated by the high-speed rotation of the drum. Without the need for additional complex external cooling components, it can stabilize the working temperature around the drum and keep the ambient temperature firmly controlled within the stable range of magnesium sulfate crystals. This avoids crystal agglomeration and melting caused by high temperature, thus maintaining product quality. At the same time, it simplifies the overall structure, reduces the number of parts, lowers equipment production and subsequent operation and maintenance costs, reduces the probability of failure, and makes the equipment more stable and durable.
[0009] 3. By setting up a material turning and inner wall cleaning structure, it can fit against the inner wall of the drum in real time during the centrifugal separation process, scrape off the solid material that adheres and accumulates, turn over and disperse the accumulated slurry, avoid material scaling and clogging of the drum screening holes, keep the drum transparent, ensure stable transmission of centrifugal force, maintain continuous and efficient operation of the equipment, eliminate the need for frequent shutdowns for cleaning, improve overall production efficiency, extend the service life of the drum, and reduce equipment wear and tear.
[0010] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description and the drawings. Attached Figure Description
[0011] Figure 1 This is a flowchart of a centrifugal separation method for magnesium sulfate production and processing according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the centrifugal separation device structure according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the centrifugal drum and drive connection frame structure according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the separation housing and centrifugal drum structure according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the internal structure of the centrifugal drum according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the centrifugal liquid discharge pipe and the separated material discharge pipe according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the fixed feed pipe and movable feed pipe structure according to an embodiment of the present invention; Figure 8 This is an embodiment of the present invention. Figure 7 Enlarged schematic diagram of the structure at point A; Figure 9 This is a schematic diagram of the internal structure of the rotating material distribution rack according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the sliding frame and auxiliary frame structure according to an embodiment of the present invention; Figure 11 This is a schematic diagram of the internal structure of the sliding frame and auxiliary frame according to an embodiment of the present invention.
[0012] In the diagram, 1. Fixed base frame; 2. Separator casing; 3. Centrifuge section; 4. Feed section; 5. Auxiliary processing components; 6. Centrifugal liquid discharge pipe; 7. Separated material discharge pipe; 8. Centrifugal drum; 9. Drive connection frame; 10. Drive gear groove; 11. Centrifugal drive motor; 12. Drive gear; 13. Phase change heat exchange chamber; 14. Centrifugal liquid discharge port; 15. Material conveying interface; 16. Fixed feed pipe; 17. Movable feed pipe; 18. Rotary distribution frame; 19. Distribution port; 20. Distribution control board; 21. Atomizing chamber; 22. 1. Control servo motor; 23. Movable connecting frame; 24. Rotating connecting block; 25. Drive gear ring; 26. Matching gear; 27. Material distribution drive motor; 28. Movable servo electric cylinder; 29. Movable slide bar; 30. Upper air guide chamber; 31. Air guide channel; 32. Lower air guide chamber; 33. Air inlet nozzle; 34. Air guide pipe; 35. Air inlet interface; 36. Fixed mounting frame; 37. Drive frame; 38. Sliding frame; 39. Auxiliary frame; 40. Auxiliary mounting frame; 41. Rotating scraper frame; 42. Scraper opening; 43. Discharge port. Detailed Implementation
[0013] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0014] Example 1
[0015] Please see Figures 1 to 11 As shown, a centrifugal separation method for magnesium sulfate production and processing includes the following steps: Step 1: Start the movable servo electric cylinders 28 on both sides of the top of the fixed mounting bracket 36. Drive the movable connecting bracket 23 downward through the electric cylinder drive end. With the help of the movable slide rod 29 for guidance and limit, the movable feed pipe 17 slides down along the fixed feed pipe 16, and sends the rotating distribution rack 18 into the appropriate position inside the centrifugal drum 8. Adjust the opening of the distribution control plate 20 according to the concentration of magnesium sulfate slurry. Drive the distribution control plate 20 to rotate by controlling the servo motor 22, and adjust the discharge size of the distribution port 19 to adapt to the dispersion feeding requirements of slurry with different concentrations.
[0016] Step 2: Open the slurry conveying pipeline. The magnesium sulfate production slurry enters the fixed feeding pipe 16 through the material conveying interface 15, and then flows into the atomization chamber 21 inside the rotating distribution frame 18 through the movable feeding pipe 17. At the same time, external gas enters the upper air guide chamber 30 through the air inlet 35, flows into the lower air guide chamber 32 through the air guide channel 31 and the air guide pipe 34, and finally is sprayed into the atomization chamber 21 through the air inlet nozzle 33 to atomize and disperse the slurry in the chamber. Start the distribution drive motor 27, which drives the rotating connecting block 24 and the rotating distribution frame 18 to rotate through the meshing transmission of the gear 26 and the drive gear ring 25. The rotating distribution frame 18 is controlled to rotate in the opposite direction to the centrifugal drum 8. The atomized and dispersed slurry is evenly and tangentially fed into the inner wall of the centrifugal drum 8 through the distribution port 19 to form a thin and uniform liquid film.
[0017] Step 3: Start the centrifugal drive motor 11 on one side of the top of the separator housing 2. The drive gear 12 meshes with the drive tooth groove 10 on the outer periphery of the drive connecting frame 9 to drive the centrifugal drum 8 to rotate at high speed. Centrifugal force is used to separate the magnesium sulfate slurry. The separated centrifugal liquid enters the separation chamber through the centrifugal separation hole, and then is collected through the centrifugal liquid outlet 14 and discharged through the centrifugal liquid discharge pipe 6. During the separation process, the phase change material inside the phase change heat exchange chamber 13 automatically absorbs the heat generated by centrifugal friction using the latent heat of phase change, maintaining the temperature around the centrifugal drum 8 in the crystal stability range and avoiding abnormal temperature from affecting the separation effect.
[0018] Step 4: During the centrifugal separation process, the auxiliary processing component 5 is started. The linear slide inside the drive frame 37 drives the sliding frame 38 to move down, extending the auxiliary frame 39 into both sides of the centrifugal drum 8. Then, the position of the auxiliary frame 39 is adjusted by the linear slide at the bottom of the sliding frame 38, so that the rotating scraper 41 is close to the inner wall of the centrifugal drum 8. The auxiliary motor is turned on to drive the rotating scraper 41 to rotate, scraping the solid material accumulated on the inner wall into the auxiliary frame 39. The material is fed through the scraper port 42 and discharged through the discharge port 43, realizing the material turning over, preventing material scaling and blockage, and improving separation efficiency.
[0019] Step 5: After the magnesium sulfate slurry is completely centrifuged, stop the slurry conveying and external air supply in sequence, and turn off the centrifugal drive motor 11, the material distribution drive motor 27 and the auxiliary motor. After the centrifugal drum 8 stops completely, open the discharge control valve inside the separation material discharge pipe 7, and discharge the centrifuged magnesium sulfate solid product through the separation material discharge pipe 7 for collection, thus completing the centrifugal separation operation of the entire batch of materials.
[0020] Specifically, the centrifugal separation method for magnesium sulfate production and processing disclosed in this embodiment achieves automated processing by relying on a complete set of centrifugal separation equipment. First, the movable connecting frame 23 and the movable feed pipe 17 are moved by the movable servo cylinder 28 to send the rotating distributing frame 18 into the centrifugal drum 8. Then, the opening of the distributing control plate 20 is adjusted by the control servo motor 22 to adapt to the feeding requirements of slurry of different concentrations. Subsequently, the slurry is transported to the atomization chamber 21 through the pipeline, and atomization and dispersion are achieved with the help of external gas. At the same time, the rotating distributing frame 18 is controlled to move in the opposite direction to the centrifugal drum 8. The rotation allows the slurry to spread tangentially on the inner wall of the drum, forming a uniform liquid film. Then, the centrifugal drive motor 11 is started to drive the centrifugal drum 8 to rotate at high speed to complete solid-liquid separation. During the separation process, the auxiliary processing component 5 is activated to scrape the material accumulated on the inner wall. Finally, the machine is stopped to discharge the solid product. The entire method and steps are closely connected, and no frequent manual intervention is required throughout the process. It solves the problems of uneven feeding, easy scaling and clogging, and incomplete separation in traditional centrifugal separation, and greatly improves the separation efficiency and purity of magnesium sulfate slurry. It is suitable for the separation of slurries of various concentrations and has greater versatility.
[0021] Example 2
[0022] Specifically, this embodiment discloses a centrifugal separation device applied to the centrifugal separation method for magnesium sulfate production and processing proposed in the above embodiment. The device includes a fixed base frame 1 and a separator housing 2. The separator housing 2 is fixedly mounted on the top of the fixed base frame 1. A centrifugal section 3 is rotatably mounted inside the separator housing 2, and a feeding section 4 is also provided on the top of the separator housing 2. The feeding section 4 feeds the magnesium sulfate production slurry into the centrifugal section 3 in a rotary manner, cooperating with the centrifugal section 3 to perform centrifugal separation of the magnesium sulfate production slurry. Auxiliary processing components 5 are also provided on both sides inside the centrifugal section 3 to agitate the material in the magnesium sulfate production slurry during the centrifugal separation process, further improving the centrifugal separation efficiency of the magnesium sulfate production slurry. A separation material discharge pipe 7 is fixedly mounted in the middle of the bottom of the separator housing 2, and a discharge control valve is provided at the top of the separation material discharge pipe 7.
[0023] Furthermore, the centrifuge section 3 includes a centrifugal drum 8 rotatably disposed inside the separator housing 2. Each centrifugal drum 8 has several reinforcing ribs fixedly arranged on its outer circumferential surface, and several centrifugal separation holes are provided inside the centrifugal drum 8. A separation chamber is provided between the outer circumferential surface of the centrifugal drum 8 and the inner wall of the separator housing 2. Several phase change heat exchange chambers 13 are provided inside the separator housing 2, and each phase change heat exchange chamber 13 is filled with a phase change material. The phase change material is selected from solid-liquid phase change materials with a melting point of 35-40℃, preferably paraffin composite material. Several centrifugal liquid drains are provided at the bottom of the separation chamber. The bottom of the separator housing 2 is also fixed with a centrifugal liquid discharge pipe 6 at the outlet 14, and the interior of the centrifugal liquid discharge pipe 6 is connected to the interior of several centrifugal liquid discharge outlets 14. The magnesium sulfate production slurry is separated by the centrifugal drum 8. The centrifugal liquid enters the interior of the separation chamber and is finally discharged through several centrifugal liquid discharge outlets 14 and centrifugal liquid discharge pipe 6. At the same time, the latent heat of phase change of the phase change material inside several phase change heat exchange chambers 13 automatically absorbs the heat generated by centrifugal friction, and keeps the micro-environment temperature around the centrifugal drum 8 constant within the crystal stable range, without the need for a complex external cooling structure.
[0024] Furthermore, a drive connecting frame 9 is fixedly provided on the top of the centrifugal drum 8, and a drive tooth groove 10 is provided on the outer peripheral surface of the drive connecting frame 9; a centrifugal drive motor 11 is fixedly provided on one side of the top of the separator housing 2, and a drive gear 12 is fixedly provided at one end of the output shaft of the centrifugal drive motor 11. The tooth surface of the drive gear 12 meshes with the tooth surface of the drive tooth groove 10 for transmission; the drive gear 12 is controlled to rotate by the output shaft of the centrifugal drive motor 11, and the drive connecting frame 9 rotates synchronously with the rotation of the drive gear 12 by meshing with the drive tooth groove 10. Then, the centrifugal drum 8 is driven to rotate centrifugally inside the separator housing 2 by the drive connecting frame 9, so that the magnesium sulfate production slurry is centrifugally separated inside the centrifugal drum 8.
[0025] Specifically, the centrifugal separation device proposed in this embodiment uses a fixed base frame 1 as a support base, with a separator housing 2 installed on top as a protective and separation carrier. A centrifugal section 3 is rotatably mounted inside, and a feeding section 4 at the top completes the feeding. The bottom is equipped with a centrifugal liquid discharge pipe 6 and a separated material discharge pipe 7 to achieve classified discharge. The core of the centrifugal section 3 is a centrifugal drum 8, with reinforcing ribs on the outer periphery to improve structural strength. Centrifugal separation holes are opened inside to achieve solid-liquid sieving. A separation chamber is formed between the drum and the housing. Multiple sets of phase change heat exchange chambers 13 are provided inside the housing and filled with phase change material. The centrifugal drum 8 is connected to a top drive connecting frame 9, drive gear groove 10, centrifugal drive motor 11, and drive gear 12 through meshing. In operation, the slurry is fed into the centrifugal drum 8 through the feed section 4. The centrifugal force generated by the high-speed rotation throws the liquid out into the separation chamber, and then discharges it through the centrifugal liquid outlet 14 and the centrifugal liquid discharge pipe 6. The solid material remains inside the drum. The phase change material automatically absorbs the heat generated by centrifugal friction by relying on the latent heat of phase change. Without the need for a complex external cooling system, the temperature around the centrifugal drum 8 can be stabilized, maintaining the stable range of magnesium sulfate crystals. This not only avoids high temperature damage to the crystals, but also simplifies the equipment structure and reduces operation and maintenance costs. At the same time, the auxiliary processing component 5 can turn the material, further improving the separation efficiency. This solves the drawbacks of traditional centrifugal equipment, such as difficult temperature control, complex structure, and low separation efficiency.
[0026] Example 3
[0027] Specifically, this embodiment discloses the connection structure of the feeding section 4. The feeding section 4 includes a fixed feeding pipe 16 and a movable feeding pipe 17. The top of the separator housing 2 is fixedly provided with a fixed mounting frame 36 through a connecting block, and the fixed feeding pipe 16 is fixedly provided in the middle of the top of the fixed mounting frame 36. The top of the fixed feeding pipe 16 is fixedly provided with a material conveying interface 15, and one end of the material conveying interface 15 is connected to the magnesium sulfate production slurry conveying pipe. The lower part of the fixed mounting frame 36 is movably provided with a movable connecting frame 23, and the movable feeding pipe 17 is fixedly provided inside the movable connecting frame 23. The top of the movable feeding pipe 17 is slidably connected to the inside of the fixed feeding pipe 16. The magnesium sulfate production slurry is fed into the inside of the drive connecting frame 9 through the material conveying interface 15, the fixed feeding pipe 16 and the movable feeding pipe 17.
[0028] Furthermore, a rotating feeder 18 is rotatably provided at the bottom of the movable connecting frame 23, and the middle of the top of the rotating feeder 18 is rotatably connected to the bottom end of the movable feed pipe 17; an atomizing chamber 21 is provided in the middle of the interior of the rotating feeder 18, and several feed ports 19 communicating with the interior of the atomizing chamber 21 are provided on the outer circumference of the rotating feeder 18. A feed control plate 20 is rotatably provided inside each feed port 19, and several control servo motors 22 for driving the feed control plate 20 to rotate are fixedly provided on the top of the rotating feeder 18; wherein, the interior of the movable feed pipe 17 is connected to the interior of the atomizing chamber 21, and the magnesium sulfate production slurry is fed into the interior of the atomizing chamber 21 through the movable feed pipe 17, and the magnesium sulfate production slurry is fed to the inner surface of the centrifugal drum 8 in conjunction with the several feed ports 19. Compared with the traditional feeding operation, the decentralized feeding operation can significantly improve the centrifugal separation effect of the magnesium sulfate production slurry.
[0029] Furthermore, an upper air guide chamber 30 is provided above the interior of the fixed feeding pipe 16, and several air guide channels 31 are provided at the bottom of the upper air guide chamber 30. An air inlet 35 communicating with the interior of the upper air guide chamber 30 is fixedly provided on the upper side of one side of the fixed feeding pipe 16. Several air guide pipes 34 are fixedly provided on the outer circumferential surface of the movable feeding pipe 17, and the top ends of the several air guide pipes 34 are slidably connected to the interior of the several air guide channels 31 respectively. A lower air guide chamber 32 is provided below the interior of the movable feeding pipe 17, and the interior of the lower air guide chamber 32 is connected to the interior of the several air guide pipes 34. Several air inlet nozzles 33 are fixedly provided at the bottom of the movable feeding pipe 17, and the interiors of the several air inlet nozzles 33 are all connected to the interior of the lower air guide chamber 32.
[0030] It should be noted that several air inlet nozzles 33 face the interior of the atomizing chamber 21, and the spray angle of each air inlet nozzle 33 gradually increases, further improving the atomization and dispersion effect of the magnesium sulfate production slurry inside the atomizing chamber 21. After the magnesium sulfate production slurry enters the interior of the atomizing chamber 21 through the movable feed pipe 17, the externally supplied gas is simultaneously sent into the interior of the atomizing chamber 21 through the air guide pipe 34 and the air inlet nozzles 33 to perform atomization and dispersion treatment on the magnesium sulfate production slurry. After atomization and dispersion treatment, the magnesium sulfate production slurry is sent out through several feed ports 19, further improving the dispersion effect of the magnesium sulfate production slurry inside the centrifugal drum 8.
[0031] Furthermore, a rotating connecting block 24 is fixedly provided on the top of the rotating material distribution frame 18, and the top of the rotating connecting block 24 is rotatably connected inside the movable connecting frame 23. A drive gear ring 25 is also fixedly provided on the top of the rotating connecting block 24. A material distribution drive motor 27 is fixedly provided inside the movable connecting frame 23, and a mating gear 26 is fixedly provided at one end of the output shaft of the material distribution drive motor 27. The tooth surface of the mating gear 26 meshes with the tooth surface of the drive gear ring 25 for transmission. The output shaft of the material distribution drive motor 27 controls the mating gear 26 to drive the rotating connecting block 24 to rotate in conjunction with the drive gear ring 25. The rotating material distribution frame 18 rotates synchronously with the rotation of the rotating connecting block 24, controlling the rotation... The rotating feed rack 18 and the centrifugal drum 8 rotate in opposite directions. The position of the feed control plate 20 is controlled according to the concentration of the magnesium sulfate production slurry. The feed opening of the feed port 19 is adjusted so that the magnesium sulfate production slurry cuts into the inner circumference of the centrifugal drum 8 for feeding. The relative speed difference between the rotating feed rack 18 and the centrifugal drum 8 causes the slurry to be violently stretched, torn and evenly spread at the moment of contact with the inner wall of the centrifugal drum 8, instantly forming an extremely thin and uniform liquid film. Subsequently, under the action of centrifugal force, it rapidly crystallizes and dehydrates. At the same time, the strong shear airflow and liquid flow generated by the counter-rotation can effectively scour the inner surface of the centrifugal drum 8, preventing the high-concentration magnesium sulfate slurry from scaling or clogging at the outlet of the centrifugal drum 8.
[0032] Furthermore, movable servo cylinders 28 are fixedly installed on both sides of the top of the fixed mounting frame 36, and the drive ends of the two movable servo cylinders 28 are fixedly connected to the top of the movable connecting frame 23; movable slide rods 29 are also fixedly installed on the front and rear sides of the top of the movable connecting frame 23, and the top ends of the two movable slide rods 29 are slidably connected to the inside of the fixed mounting frame 36; the movable connecting frame 23 is controlled to move up and down inside the centrifugal drum 8 by the drive ends of the two movable servo cylinders 28, thereby efficiently dispersing and feeding the magnesium sulfate slurry inside the centrifugal drum 8, greatly improving the centrifugal separation effect of the magnesium sulfate slurry.
[0033] Specifically, in this embodiment, the feeding unit 4 uses a fixed mounting frame 36 as a support carrier. A fixed feeding pipe 16 with a material conveying interface 15 is provided at the top. A movable feeding pipe 17, slidably connected to the fixed feeding pipe 16, is installed inside the movable connecting frame 23 below. A rotating distributing frame 18 with an atomizing chamber 21 is connected at the bottom. Distributing ports 19 are opened on the outer periphery of the distributing frame, and a distributing control board 20 and a control servo motor 22 are installed inside. An upper air guide chamber 30 and an air guide channel 31 are provided inside the fixed feeding pipe 16. An air guide pipe 34 is provided outside the movable feeding pipe 17, and a lower air guide chamber 32 is provided inside. An air inlet nozzle 33 is installed at the bottom. The rotating distributing frame 18 achieves transmission through a rotating connecting block 24, a drive gear ring 25, a distributing drive motor 27, and a cooperating gear 26. The fixed mounting frame 36 has a fixed connecting block 24 at the top, a drive gear ring 25, and a distributing drive motor 27. The movable servo cylinder 28 and movable slide bar 29 enable the lifting and lowering adjustment of the movable connecting frame 23. When the feeding structure is working, the slurry enters the atomization chamber 21 through the fixed feeding pipe 16 and the movable feeding pipe 17. External gas is injected into the chamber through the air inlet 35, the air guide pipe and the air inlet nozzle 33 to disperse the slurry and achieve atomization. The rotating distribution frame 18 rotates in the opposite direction to the centrifugal drum 8. The speed difference is used to stretch and tear the slurry and spread it evenly on the inner wall of the drum to form a thin liquid film. With the adjustable opening of the distribution port 19, it can adapt to the feeding of slurry of different concentrations. The shearing airflow generated by the reverse rotation can also flush the inner wall of the drum to prevent high-concentration slurry from scaling and clogging. Compared with the traditional direct discharge feeding, the feeding is more uniform and the dispersion is better, which greatly improves the centrifugal separation effect and also eliminates the problem of equipment clogging.
[0034] Example 4
[0035] Specifically, the auxiliary processing component 5 includes a drive frame 37 and a sliding frame 38. The drive frames 37 are fixedly installed on both sides of the top of the fixed mounting frame 36, and the sliding frames 38 are slidably installed inside the two drive frames 37 via linear slides. The bottom of the sliding frame 38 is slidably installed on an auxiliary mounting frame 40 via a linear slide, and the bottom of the auxiliary mounting frame 40 is fixedly installed on an auxiliary frame 39. The auxiliary frame 39 is rotatably installed on the inside of a rotating scraper 41, and the auxiliary mounting frame 40 is fixedly installed on the inside of an auxiliary motor for driving the rotating scraper 41 to rotate. The auxiliary frame 39 is provided with a scraper opening 42 and a discharge opening 43 on both sides, and one side of the rotating scraper 41 extends to the outside of the scraper opening 42.
[0036] It should be noted that after the magnesium sulfate slurry is fed in a layered, rotary manner inside the centrifugal drum 8, the sliding frame 38 is controlled to slide downwards by the linear slides inside the two drive frames 37 until the two auxiliary frames 39 are inserted into the two sides inside the centrifugal drum 8. The linear slides at the bottom of the two sliding frames 38 control the two auxiliary frames 39 to move closer to the two sides of the inner wall of the centrifugal drum 8, and control the rotating scraper frame 41 inside the two auxiliary frames 39 to rotate, so that the solid magnesium sulfate material on the inner wall of the centrifugal drum 8 is fed into the interior of the auxiliary frames 39 through the scraper port 42. Finally, the solid material is discharged through the discharge port 43, which agitates the solid material accumulated on the inner wall of the centrifugal drum 8, further improving the centrifugal separation efficiency of the magnesium sulfate slurry.
[0037] Specifically, the auxiliary processing component 5 proposed in this embodiment consists of a drive frame 37, a sliding frame 38, an auxiliary frame 39, and an auxiliary mounting frame 40. The drive frame 37 is fixed to the top of the fixed mounting frame 36, and the sliding frame 38 is connected to it internally via a linear slide. The bottom of the sliding frame 38 is also connected to the auxiliary mounting frame 40 and the auxiliary frame 39 via a linear slide. The auxiliary frame 39 is equipped with a rotating scraper 41 and a drive motor. Scraping ports 42 and discharge ports 43 are respectively opened on both sides of the frame. When this component is working, the linear slide drives the sliding frame 38 to move downward, extending the auxiliary frame 39 into the centrifugal drum 8. Then, adjust the position so that the rotating scraper 41 is close to the inner wall of the drum. The motor drives the scraper to rotate, scraping the solid magnesium sulfate material accumulated on the inner wall into the auxiliary frame 39, and then sending it out through the discharge port 43. This achieves material agitation and inner wall cleaning, which can not only break the state of material accumulation and caking, allowing the slurry to fully contact the centrifugal force and improve the degree of solid-liquid separation, but also clean the material adhering to the inner wall in time, preventing the material from drying and clogging the drum holes, ensuring continuous and efficient operation of centrifugal separation. This solves the problems of difficult material cleaning, incomplete separation, and easy material blockage in traditional centrifugal equipment, and further improves separation efficiency and equipment service life.
[0038] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A centrifugal separation method for the production and processing of magnesium sulfate, characterized in that, Includes the following steps: Step 1: Start the movable servo electric cylinders (28) on both sides of the top of the fixed mounting frame (36). Drive the movable connecting frame (23) to move down through the electric cylinder drive end. With the movable slide rod (29) guide and limit, drive the movable feed pipe (17) down along the fixed feed pipe (16) to send the rotating feed rack (18) into the appropriate position inside the centrifugal drum (8). Adjust the opening of the feed control plate (20) according to the concentration of magnesium sulfate slurry. Drive the feed control plate (20) to rotate by controlling the servo motor (22) to adjust the discharge size of the feed port (19) to adapt to the dispersion feeding requirements of different concentration slurries. Step 2: Open the slurry conveying pipeline. Magnesium sulfate production slurry enters the fixed feeding pipe (16) through the material conveying interface (15), and then flows into the atomization chamber (21) inside the rotating distribution frame (18) through the movable feeding pipe (17). At the same time, external gas enters the upper air guide chamber (30) through the air inlet (35), and flows into the lower air guide chamber (32) through the air guide channel (31) and air guide pipe (34). Finally, it is sprayed into the atomization chamber (21) through the air inlet nozzle (33) to atomize and disperse the slurry in the chamber. Start the distribution drive motor (27). Through the meshing transmission of the gear (26) and the drive gear ring (25), the rotating connecting block (24) and the rotating distribution frame (18) are driven to rotate. The rotating distribution frame (18) and the centrifugal drum (8) are controlled to rotate in opposite directions. The atomized and dispersed slurry is evenly and tangentially fed into the inner wall of the centrifugal drum (8) through the distribution port (19) to form a thin and uniform liquid film. Step 3: Start the centrifugal drive motor (11) on the top side of the separator housing (2). The drive gear (12) meshes with the drive tooth groove (10) on the outer periphery of the drive connecting frame (9) to drive the centrifugal drum (8) to rotate at high speed. The centrifugal force is used to separate the magnesium sulfate slurry. The separated centrifugal liquid enters the separation chamber through the centrifugal separation hole, and then is collected through the centrifugal liquid outlet (14) and discharged through the centrifugal liquid discharge pipe (6). During the separation process, the phase change material inside the phase change heat exchange chamber (13) automatically absorbs the heat generated by centrifugal friction using the latent heat of phase change. Step 4: During the centrifugal separation process, start the auxiliary processing component (5), drive the sliding frame (38) to move down through the linear slide table inside the drive frame (37), extend the auxiliary frame (39) into both sides inside the centrifugal drum (8), and then adjust the position of the auxiliary frame (39) through the linear slide table at the bottom of the sliding frame (38) so that the rotating scraper (41) is close to the inner wall of the centrifugal drum (8), start the auxiliary motor to drive the rotating scraper (41) to rotate, scrape the solid material accumulated on the inner wall into the auxiliary frame (39), feed through the scraper port (42) and discharge through the discharge port (43); Step 5: After the magnesium sulfate slurry is completely centrifuged, stop the slurry conveying and external air supply in sequence, and turn off the centrifugal drive motor (11), the material distribution drive motor (27) and the auxiliary motor. After the centrifugal drum (8) stops completely, open the discharge control valve inside the separation material discharge pipe (7) and discharge the solid magnesium sulfate product after centrifugation through the separation material discharge pipe (7) to complete the centrifugation separation operation of the whole batch of materials.
2. The centrifugal separation method for magnesium sulfate production and processing according to claim 1, characterized in that, It also includes a centrifugal separation device for a centrifugal separation method for the production and processing of magnesium sulfate. The centrifugal separation device includes a fixed base frame (1) and a separator housing (2). The separator housing (2) is fixedly installed on the top of the fixed base frame (1). A centrifugal section (3) is rotatably installed inside the separator housing (2). A feeding section (4) is also provided on the top of the separator housing (2). The magnesium sulfate production slurry is fed into the centrifugal section (3) through the feeding section (4) in a rotary manner. The centrifugal section (3) is used to centrifuge the magnesium sulfate production slurry. Auxiliary processing components (5) are also provided on both sides inside the centrifugal section (3) for turning over the material of the magnesium sulfate production slurry during the centrifugal separation process. A separation material discharge pipe (7) is fixedly installed in the middle of the bottom of the separator housing (2).
3. The centrifugal separation method for magnesium sulfate production and processing according to claim 2, characterized in that, The centrifuge section (3) includes a centrifugal drum (8) rotatably disposed inside the separator housing (2). A separation chamber is provided between the outer peripheral surface of the centrifugal drum (8) and the inner wall of the separator housing (2). The separator housing (2) is provided with a number of phase change heat chambers (13), and each phase change heat chamber (13) is filled with phase change material. The bottom of the separation chamber is provided with a number of centrifugal liquid outlets (14). The bottom of the separator housing (2) is also fixedly provided with a centrifugal liquid discharge pipe (6), and the interior of the centrifugal liquid discharge pipe (6) is connected to the interior of the centrifugal liquid outlets (14).
4. The centrifugal separation method for magnesium sulfate production and processing according to claim 3, characterized in that, The top of the centrifugal drum (8) is fixedly provided with a drive connecting frame (9), and the outer peripheral surface of the drive connecting frame (9) is provided with a drive tooth groove (10); a centrifugal drive motor (11) is fixedly provided on one side of the top of the separator housing (2), and a drive gear (12) is fixedly provided at one end of the output shaft of the centrifugal drive motor (11), and the tooth surface of the drive gear (12) meshes with the tooth surface of the drive tooth groove (10) for transmission.
5. The centrifugal separation method for magnesium sulfate production and processing according to claim 2, characterized in that, The feeding section (4) includes a fixed feeding pipe (16) and a movable feeding pipe (17). The top of the separator housing (2) is fixedly provided with a fixed mounting bracket (36) through a connecting block, and the fixed feeding pipe (16) is fixedly provided in the middle of the top of the fixed mounting bracket (36). The top of the fixed feeding pipe (16) is fixedly provided with a material conveying interface (15). The bottom of the fixed mounting bracket (36) is provided with a movable connecting bracket (23), and the movable feeding pipe (17) is fixedly provided inside the movable connecting bracket (23). The top of the movable feeding pipe (17) is slidably connected to the inside of the fixed feeding pipe (16).
6. The centrifugal separation method for magnesium sulfate production and processing according to claim 5, characterized in that, The bottom of the movable connecting frame (23) is rotatably provided with a rotating material distribution frame (18), and the middle of the top of the rotating material distribution frame (18) is rotatably connected to the bottom end of the movable feed pipe (17); the middle of the interior of the rotating material distribution frame (18) is provided with an atomizing chamber (21), and the outer circumference of the rotating material distribution frame (18) is provided with several material distribution ports (19) that communicate with the interior of the atomizing chamber (21). Each material distribution port (19) is rotatably provided with a material distribution control plate (20), and the top of the rotating material distribution frame (18) is fixedly provided with several control servo motors (22) for driving the material distribution control plate (20) to rotate.
7. The centrifugal separation method for magnesium sulfate production and processing according to claim 5, characterized in that, The fixed feeding pipe (16) has an upper air guide chamber (30) at the top, and the bottom of the upper air guide chamber (30) has several air guide channels (31). The fixed feeding pipe (16) has an air inlet (35) fixedly connected to the inside of the upper air guide chamber (30) at the top. The outer circumference of the movable feeding pipe (17) has several air guide pipes (34) fixedly provided, and the top of the several air guide pipes (34) is slidably connected to the inside of the several air guide channels (31). The movable feeding pipe (17) has a lower air guide chamber (32) at the bottom, and the inside of the lower air guide chamber (32) is connected to the inside of the several air guide pipes (34). The bottom of the movable feeding pipe (17) has several air inlet nozzles (33) fixedly provided, and the inside of the several air inlet nozzles (33) is connected to the inside of the lower air guide chamber (32).
8. The centrifugal separation method for magnesium sulfate production and processing according to claim 6, characterized in that, The top of the rotating material distribution frame (18) is fixedly provided with a rotating connecting block (24), and the top of the rotating connecting block (24) is rotatably connected inside the movable connecting frame (23). The top of the rotating connecting block (24) is also fixedly provided with a drive gear ring (25). The inside of the movable connecting frame (23) is fixedly provided with a material distribution drive motor (27), and one end of the output shaft of the material distribution drive motor (27) is fixedly provided with a mating gear (26). The tooth surface of the mating gear (26) meshes with the tooth surface of the drive gear ring (25) for transmission.
9. The centrifugal separation method for magnesium sulfate production and processing according to claim 5, characterized in that, Movable servo cylinders (28) are fixedly provided on both sides of the top of the fixed mounting bracket (36), and the driving ends of the two movable servo cylinders (28) are fixedly connected to the top of the movable connecting bracket (23); movable slide rods (29) are also fixedly provided on the front and rear sides of the top of the movable connecting bracket (23), and the top ends of the two movable slide rods (29) are slidably connected to the inside of the fixed mounting bracket (36).
10. A centrifugal separation method for magnesium sulfate production and processing according to claim 2, characterized in that, The auxiliary processing component (5) includes a drive frame (37) and a sliding frame (38). The drive frame (37) is fixedly provided on both sides of the top of the fixed mounting frame (36), and the sliding frame (38) is slidably provided inside the two drive frames (37) via a linear slide table. The bottom of the sliding frame (38) is slidably provided with an auxiliary mounting frame (40) via a linear slide table, and the bottom of the auxiliary mounting frame (40) is fixedly provided with an auxiliary frame (39). The auxiliary frame (39) is rotatably provided with a rotating scraper (41), and the auxiliary mounting frame (40) is fixedly provided with an auxiliary motor for driving the rotating scraper (41) to rotate. The auxiliary frame (39) is provided with a scraper opening (42) and a discharge opening (43) on both sides, and one side of the rotating scraper (41) extends to the outside of the scraper opening (42).