Crystal separation device for magnesium sulfate production and use method thereof

Abstract

The invention relates to the technical field of separation equipment, in particular to a crystal separation device for magnesium sulfate production and a use method thereof, the crystal separation device comprises two parallel mounting frames fixedly connected to the ground, a crystallization barrel is arranged on the two mounting frames, the crystallization barrel comprises a barrel body, the barrel body is rotatably connected to the two mounting frames, and the barrel body is provided with a plurality of through holes; a rotating mechanism is connected between the barrel body and the mounting frame, the rotating mechanism is used for driving the barrel body to rotate, a bearing plate is further fixedly connected in the barrel body, and a crystal scraping mechanism and a crystal discharging mechanism are arranged on the bearing plate. According to the magnesium sulfate crystallization device, the crystallization barrel is arranged and can be driven by the driving mechanism to turn over up and down, so that a magnesium sulfate solution can be switched between the liquid containing hoppers and the cooling barrel at the two ends, magnesium sulfate crystals and the solution can be separated through the filter plate, and multiple times of crystallization of the magnesium sulfate solution can also be achieved through turning over of the crystallization barrel; and the use is relatively simple.

Description

Technical Field

[0001] The invention relates to the technical field of separation equipment, and in particular to a crystal separation device for magnesium sulfate production and a use method thereof. Background Art

[0002] Magnesium sulfate crystallization is usually carried out by heating the magnesium sulfate solution to 80-90 degrees Celsius, and then placing the solution in an environment with a temperature below 10 degrees Celsius to precipitate magnesium sulfate crystals, that is, magnesium sulfate crystals, and then separating the magnesium sulfate crystals from the mother liquor through solid-liquid separation.

[0003] The existing patent (Announcement No.: CN116139531A) discloses a crystallization separation device for magnesium sulfate production, which specifically relates to the technical field of separation equipment, including a separation tank; a crystallization bin; a mother liquor delivery pipe; a connecting bin; a ceramic membrane; a partition, wherein two of the partitions are arranged in sequence from top to bottom, and a liquid storage cavity for storing mother liquor is formed between the lower partition and the inner bottom wall of the separation tank. By setting up a crystallization bin, and the crystallization bin is in a bundled shape from top to bottom, the magnesium sulfate mother liquor delivered into the crystallization bin by the mother liquor delivery pipe can flow downward along the inner wall of the crystallization bin and form a spiral water flow. When the spiral water flow flows on the inner wall of the crystallization bin, the magnesium sulfate crystals attached to the inner wall of the crystallization bin can be washed down to avoid being attached to the inner wall of the crystallization bin, thereby reducing the impact on the yield of magnesium sulfate crystals. However, in actual application, it was found that the prior art had the following problems: in the process of magnesium sulfate mother liquor washing magnesium sulfate off the inner wall of the crystallization bin, part of the magnesium sulfate crystals would dissolve again, resulting in a decrease in the output of magnesium sulfate crystals and reducing the efficiency of obtaining magnesium sulfate crystals. Summary of the invention

[0004] The object of the present invention is to provide a crystallization separation device for magnesium sulfate production and a method for using the same, so as to solve the problem that the output of magnesium sulfate crystals is reduced, resulting in a decrease in the efficiency of obtaining magnesium sulfate crystals, as mentioned in the above background technology. To achieve the above object, the present invention provides the following technical solutions: A crystallization separation device for magnesium sulfate production comprises two parallel mounting frames fixedly connected to the ground, a crystallization cylinder is arranged on the two mounting frames, the crystallization cylinder comprises a cylinder body, a bottom plate is fixedly connected to the lower end of the cylinder body, a liquid storage bucket is fixedly connected to the bottom plate, the liquid storage bucket is also fixedly connected to the inner wall of the cylinder body, a drain valve is fixedly connected to the lower end of the liquid storage bucket, a resistance wire is fixedly connected to the outer side of the liquid storage bucket, and the resistance wire can heat the magnesium sulfate solution in the liquid storage bucket after being energized, a filter plate is rotatably connected at the central position of the crystallization cylinder, the filter plate is used to filter the precipitated magnesium sulfate crystals, and a cooling cylinder is fixedly connected to the upper end of the cylinder body, and the cooling cylinder is used to cool the magnesium sulfate solution to precipitate magnesium sulfate crystals.

[0005] Preferably, the cylinder is rotatably connected to two mounting frames, a rotating mechanism is connected between the cylinder and the mounting frames, and the rotating mechanism is used to drive the cylinder to rotate. When the cylinder rotates 180 degrees intermittently, the magnesium sulfate solution will stay alternately in the liquid hopper and the cooling cylinder.

[0006] Preferably, a support plate is also fixedly connected to the cylinder body, and a crystal scraping mechanism and a crystal discharge mechanism are provided on the support plate. The crystal scraping mechanism is used to scrape off the magnesium sulfate crystals attached to the inner wall of the cooling cylinder, and the crystal discharge mechanism is used to discharge the magnesium sulfate crystals that fall on the filter plate. The crystal scraping mechanism includes a driving assembly, a connecting assembly, two side wall scraping assemblies and an end scraper. The two side wall scraping assemblies are symmetrically arranged on the connecting assembly, and a waterproof shell is also fixedly connected to the support plate.

[0007] Preferably, the driving assembly includes a mounting bracket 1 fixedly connected to a supporting plate, the mounting bracket 1 is evenly rotatably connected to four rotating shafts, the supporting plate is also fixedly connected to a driving motor 1, the output shaft of the driving motor 1 is fixedly connected to one of the rotating shafts, each of the rotating shafts is fixedly connected to a pulley, the four pulleys are connected to belts, the belts are fixedly connected to a guide rod, the supporting plate is also fixedly connected to a connecting plate 1, the connecting plate 1 is fixedly connected to two parallel guide rods 1, the two guide rods 1 are slidably connected to a lifting bracket, the guide rods are rotatably connected to a connecting bracket 1, the connecting bracket 1 is slidably connected to the lifting bracket, and the connecting bracket 1 is also fixedly connected to a rack.

[0008] Preferably, the connecting assembly includes a fixed bracket fixedly connected to the cylinder body, the fixed bracket is rotatably connected to a connecting cylinder, the connecting cylinder is slidably connected to a lifting rod, the lower end of the lifting rod is fixedly connected to the lifting bracket, and the connecting cylinder is also fixedly connected to gear one. After the rack moves in the vertical direction to the same height as gear one, the rack will start to move in the horizontal direction and mesh with gear one, driving gear one to rotate 180 degrees, the connecting cylinder is also fixedly connected to the filter plate, the connecting cylinder is also rotatably connected to the waterproof shell, and the top of the lifting rod is also fixedly connected to an end scraper.

[0009] Preferably, the side wall scraping assembly includes a fixed plate fixedly connected to the lifting rod, and connecting plate two and connecting plate three are fixed on the fixed plate, and the ends of connecting plate two and connecting plate three are fixedly connected to mounting bracket two, and a side wall scraper is slidably connected to the mounting bracket two, and two symmetrically arranged cleaning plates are also slidably connected to the mounting bracket two, and a number of springs are connected between the two cleaning plates and the mounting bracket two.

[0010] Preferably, a connecting block 1 is fixedly connected to the side wall scraper, a guide rod 2 is fixedly connected between the connecting plate 2 and the connecting plate 3, a connecting block 2 is slidably connected to the guide rod 2, a spring 2 is connected between the connecting block 2 and the end of the guide rod 2, a connecting rod 1 is hinged between the connecting block 1 and the connecting block 2, a connecting block 3 is slidably connected to the connecting plate 2, a stopper 1 for limiting the sliding of the connecting block 3 is also fixedly connected to the connecting plate 2, a connecting rod 2 is hinged between the connecting block 2 and the connecting block 3, a connecting sleeve is also rotatably connected to the connecting block 3, a connecting cylinder is also rotatably connected to a connecting rod, the connecting rod is slidably connected to the connecting sleeve, and a stopper 2 is also fixedly connected to the end of the connecting sleeve, and the stopper 2 is used to limit the connecting rod to prevent the connecting rod from separating from the connecting sleeve.

[0011] Preferably, the crystal discharge mechanism includes a connecting plate four fixedly connected to the support plate, the connecting plate four is rotatably connected to a screw, the top ends of the two guide rods one are fixedly connected to a connecting bracket two, the connecting bracket two is rotatably connected to the screw, the lifting bracket is fixedly connected to a ball nut sleeve, the ball nut sleeve is threadedly connected to the screw, the upper end of the screw is rotatably connected to a hollow rod, the hollow rod is fixedly connected to a gear two, the gear two is meshed with a gear one, the screw is fixedly connected to an end face ratchet one, the hollow rod is slidably connected to an end face ratchet two, a spring three is connected between the end face ratchet two and gear two, and the end face ratchet one is meshed with the end face ratchet two.

[0012] Preferably, a guide plate is fixedly connected to the cylinder, and when the filter plate drives the magnesium sulfate crystals thereon to rotate, the guide plate can guide the magnesium sulfate crystals blocked by it to move toward the edge of the filter plate, and a discharge port is provided on the cylinder, and the discharge port is located at the end of the guide plate, and a mounting bracket three is provided at the discharge port, and a sealing block is slidably connected to the mounting bracket three, and a threaded hole is provided on the mounting bracket three, and a screw is threadedly connected in the threaded hole, and the screw is rotatably connected to the sealing block, and a rotating handle is also fixedly connected to the end of the screw.

[0013] Preferably, the cylinder body is further provided with a liquid inlet, the liquid inlet is located above the liquid storage bucket, and a closing plug is threadedly connected to the liquid inlet.

[0014] Preferably, the rotating mechanism comprises a second driving motor fixedly connected to the mounting frame, a worm is fixedly connected to the output shaft of the second driving motor, a worm wheel is fixedly connected to the cylinder, and the worm wheel is meshed with the worm wheel.

[0015] A method for using a crystallization separation device for magnesium sulfate production comprises the following steps: Remove the sealing plug, add a certain amount of magnesium sulfate solution into the liquid hopper from the liquid inlet, seal the liquid inlet with the sealing plug after completion, and then energize the resistance wire, so that the resistance wire heats the magnesium sulfate solution in the liquid hopper, and when the magnesium sulfate solution reaches a certain temperature, cut off the power of the resistance wire, and then start the second drive motor, which drives the cylinder to rotate 180 degrees through the meshing worm gear and worm, and the heated magnesium sulfate solution flows into the cooling cylinder through the filter plate, and as the magnesium sulfate solution gradually cools, magnesium sulfate crystals gradually precipitate and adhere to the inner wall of the cooling cylinder or mix in the solution; After a period of time, the drive motor 2 is started again to rotate the cylinder 180 degrees again, so that the magnesium sulfate solution flows back into the liquid hopper, and the magnesium sulfate crystals mixed in the solution are all filtered out by the filter plate, and then the magnesium sulfate solution in the liquid hopper is reheated and the drive motor 1 is started. The drive motor 1 drives the pulley to rotate through the rotating shaft, and the pulley drives the belt and guide rod connected thereto to move. When the guide rod moves upward, the lifting bracket is driven to move upward along the guide rod 1 through the connecting bracket, and the lifting bracket drives the lifting rod connected thereto to move upward, and the lifting rod moves upward by a distance that just makes the end scraper contact the inner end surface of the cooling cylinder; During the upward movement of the lifting rod, the connecting rod also slides along the connecting sleeve. When the lifting rod approaches the highest point, the connecting rod is blocked by the second stopper and can no longer slide relative to the connecting sleeve. Then, the lifting rod causes the connecting block three to slide toward the first stopper under the traction of the connecting rod and the connecting sleeve. The sliding of the connecting block three will drive the connecting block two to move upward along the guide rod two through the second connecting rod. The upward movement of the connecting block two will drive the connecting block one and the side wall scraper to move outward through the first connecting rod. When the connecting rod moves to the highest point, the side wall scraper is in contact with the inner wall of the cooling cylinder. After the guide rod moves upward, it will move horizontally, driving the rack on the connecting bracket to move horizontally and make the rack mesh with gear one. Gear one and the connecting cylinder are driven by the rack to rotate 180 degrees, and the end scraper and side scraper indirectly connected to the connecting cylinder are also driven to rotate 180 degrees, scraping off the magnesium sulfate crystals attached to the inner wall of the cooling cylinder, so that the magnesium sulfate crystals fall onto the filter plate; The guide rod will start to move downward after translation. When the guide rod is reset, the drive motor 1 is turned off, the guide rod is reset to make the lifting rod move downward and reset, and the side wall scraper will also move inward. When moving in the side wall scraper box, the cleaning plates on both sides of the side wall scraper are always in contact with the side wall scraper under the push of the spring 1, so that the magnesium sulfate crystals adhering to the side wall scraper can be scraped off and the side wall scraper is cleaned. During the downward movement of the lifting rod, the ball nut sleeve on the lifting bracket moves downward along the screw rod, thereby driving the screw rod to rotate, and the screw rod drives the hollow rod to rotate through the meshing end face ratchet wheel 1 and the end face ratchet wheel 2, and the hollow rod drives the connecting cylinder and the filter plate to rotate through the meshing gear 2 and the gear 1. When the filter plate rotates, the magnesium sulfate crystals on the filter plate blocked by the guide plate move toward the edge of the filter plate under the guidance, and when the discharge port is opened, the magnesium sulfate crystals on the edge of the filter plate can be discharged from the discharge port; After the magnesium sulfate solution is heated again, crystallization can be carried out again by turning the cylinder over.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the crystallization cylinder can be turned upside down under the drive of the driving mechanism, so that the magnesium sulfate solution can be switched between the liquid hopper and the cooling cylinder at both ends, so that the magnesium sulfate crystals and the solution can be separated by the filter plate, and multiple crystallizations of the magnesium sulfate solution can also be achieved by turning over the crystallization cylinder, which is relatively simple to use.

[0017] 2. In the present invention, by setting up a crystal scraping mechanism, driven by a driving motor 1, the end scraper and the side wall scraper will move to the inner wall of the cooling cylinder and stick to each other, and the rear end scraper and the side wall scraper will rotate 180 degrees to hang down the magnesium sulfate crystals attached to the cooling cylinder, and a cleaning plate is also provided at the side wall scraper to clean the surface of the side wall scraper when the side wall scraper is retracted.

[0018] 3. In the present invention, the crystal discharging mechanism is provided, and when the crystal scraping mechanism is reset, it will be driven to run, so that the magnesium sulfate crystals on the surface of the filter plate are discharged from the opened discharge port, and these magnesium sulfate crystals will no longer dissolve in the magnesium sulfate solution, thereby ensuring the output of magnesium sulfate crystals. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the crystallization cylinder in the present invention; Figure 3 It is a schematic diagram of the structure in the cylinder of the present invention; Figure 4 It is a structural schematic diagram of the crystal scraping mechanism in the present invention; Figure 5 The structure of the driving component in the present invention is shown in FIG. Figure 1 ; Figure 6 The structure of the driving component in the present invention is shown in FIG. Figure 2 ; Figure 7 It is a structural schematic diagram of the side wall scraping assembly in the present invention; Figure 8for Figure 7 A schematic diagram of the local enlarged structure at point A in the middle; Fig. 9 It is a structural schematic diagram of the crystal discharge mechanism in the present invention.

[0020] In the figure: 1, mounting frame; 2, crystallization cylinder; 201, cylinder; 202, bottom plate; 203, liquid storage bucket; 204, drain valve; 205, resistance wire; 206, filter plate; 207, cooling cylinder; 208, liquid inlet; 209, closing plug; 3, rotating mechanism; 301, driving motor 2; 302, worm; 303, worm gear; 4, supporting plate; 5, crystal scraping mechanism; 51, driving assembly; 5101, mounting bracket 1; 5102, rotating shaft ; 5103, driving motor 1; 5104, pulley; 5105, belt; 5106, guide rod; 5107, connecting plate 1; 5108, guide rod 1; 5109, lifting bracket; 5110, connecting bracket 1; 5111, rack; 52, connecting assembly; 5201, fixed bracket; 5202, connecting cylinder; 5203, lifting rod; 5204, gear 1; 53, side wall scraping assembly; 5301, fixed plate; 5302, connecting plate 2; 5303, connecting plate 3; 5304, mounting bracket 2; 5305, side scraper; 5306, cleaning plate; 5307, spring 1; 5308, connecting block 1; 5309, guide rod 2; 5310, connecting block 2; 5311, spring 2; 5312, connecting rod 1; 5313, connecting block 3; 5314, block 1; 5315, connecting rod 2; 5316, connecting sleeve; 5317, connecting rod; 5318, block 2; 54, End scraper; 6. Crystal discharge mechanism; 601. Connecting plate four; 602. Screw rod; 603. Connecting bracket two; 604. Ball nut sleeve; 605. Hollow rod; 606. Gear two; 607. End ratchet one; 608. End ratchet two; 609. Spring three; 610. Guide plate; 611. Discharge port; 612. Mounting bracket three; 613. Sealing block; 614. Threaded hole; 615. Screw rod; 616. Turning handle; 7. Waterproof shell. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figures 1 to 9 , the present invention provides a technical solution: A crystallization separation device for magnesium sulfate production comprises two parallel mounting frames 1 fixedly connected to the ground, a crystallization cylinder 2 is arranged on the two mounting frames 1, the crystallization cylinder 2 comprises a cylinder body 201, a bottom plate 202 is fixedly connected to the lower end of the cylinder body 201, a liquid hopper 203 is fixedly connected to the bottom plate 202, the liquid hopper 203 is also fixedly connected to the inner wall of the cylinder body 201, a drain valve 204 is fixedly connected to the lower end of the liquid hopper 203, a resistance wire 205 is fixedly connected to the outer side of the liquid hopper 203, the resistance wire 205 can heat the magnesium sulfate solution in the liquid hopper 203 after being energized, a filter plate 206 is rotatably connected at the central position of the crystallization cylinder 2, the filter plate 206 is used to filter the precipitated magnesium sulfate crystals, and a cooling cylinder 207 is fixedly connected to the upper end of the cylinder body 201, the cooling cylinder 207 is used to cool the magnesium sulfate solution to precipitate magnesium sulfate crystals.

[0023] In this embodiment, the cylinder 201 is rotatably connected to two mounting frames 1, and a rotating mechanism 3 is connected between the cylinder 201 and the mounting frames 1. The rotating mechanism 3 is used to drive the cylinder 201 to rotate. When the cylinder 201 rotates 180 degrees intermittently, the magnesium sulfate solution will stay alternately in the liquid bucket 203 and the cooling cylinder 207.

[0024] In this embodiment, a support plate 4 is also fixedly connected to the cylinder 201, and a crystal scraping mechanism 5 and a crystal discharge mechanism 6 are provided on the support plate 4. The crystal scraping mechanism 5 is used to scrape off the magnesium sulfate crystals attached to the inner wall of the cooling cylinder 207, and the crystal discharge mechanism 6 is used to discharge the magnesium sulfate crystals fallen on the filter plate 206. The crystal scraping mechanism 5 includes a driving component 51, a connecting component 52, two side wall scraping components 53 and an end scraper 54. The two side wall scraping components 53 are symmetrically arranged on the connecting component 52. The support plate 4 is also fixedly connected to a waterproof shell 7.

[0025] In this embodiment, the driving component 51 includes a mounting bracket 5101 fixedly connected to the supporting plate 4, and the mounting bracket 5101 is evenly connected to four rotating shafts 5102. The supporting plate 4 is also fixedly connected to a driving motor 5103, and the output shaft of the driving motor 5103 is fixedly connected to one of the rotating shafts 5102. Each of the rotating shafts 5102 is fixedly connected to a pulley 5104, and the four pulleys 5104 are connected to belts 5105. A guide rod 5106 is fixedly connected to the belt 5105, and a connecting plate 5107 is also fixedly connected to the supporting plate 4. Two parallel guide rods 5108 are fixedly connected to the connecting plate 5107, and a lifting bracket 5109 is slidably connected to the two guide rods 5108. A connecting bracket 5110 is rotatably connected to the guide rod 5106, and the connecting bracket 5110 is slidably connected to the lifting bracket 5109. A rack 5111 is also fixedly connected to the connecting bracket 5110.

[0026] In this embodiment, the connecting assembly 52 includes a fixed bracket 5201 fixedly connected to the cylinder body 201, and a connecting cylinder 5202 is rotatably connected to the fixed bracket 5201, and a lifting rod 5203 is slidably connected to the connecting cylinder 5202. The lower end of the lifting rod 5203 is fixedly connected to the lifting bracket 5109, and a gear 1 5204 is also fixedly connected to the connecting cylinder 5202. After the rack 5111 moves in the vertical direction to the same height as the gear 1 5204, the rack 5111 will start to move in the horizontal direction and mesh with the gear 1 5204, driving the gear 1 5204 to rotate 180 degrees. The connecting cylinder 5202 is also fixedly connected to the filter plate 206, and the connecting cylinder 5202 is also rotatably connected to the waterproof shell 7. The top of the lifting rod 5203 is also fixedly connected to the end scraper 54.

[0027] In this embodiment, the side wall scraping assembly 53 includes a fixed plate 5301 fixedly connected to the lifting rod 5203, and a connecting plate 2 5302 and a connecting plate 3 5303 are fixed on the fixed plate 5301. The ends of the connecting plate 2 5302 and the connecting plate 3 5303 are fixedly connected to a mounting bracket 2 5304, and a side wall scraper 5305 is slidably connected to the mounting bracket 2 5304. The mounting bracket 2 5304 is also slidably connected to two symmetrically arranged cleaning plates 5306, and a plurality of springs 1 5307 are connected between the two cleaning plates 5306 and the mounting bracket 2 5304.

[0028] In this embodiment, a connecting block 1 5308 is fixedly connected to the side wall scraper 5305, a guide rod 2 5309 is fixedly connected between the connecting plate 2 5302 and the connecting plate 3 5303, a connecting block 2 5310 is slidably connected to the guiding rod 2 5309, a spring 2 5311 is connected between the connecting block 2 5310 and the end of the guiding rod 2 5309, a connecting rod 1 5312 is hinged between the connecting block 1 5308 and the connecting block 2 5310, a connecting block 3 5313 is slidably connected to the connecting plate 2 5302, and a connecting block 3 5313 is fixedly connected to the connecting plate 2 5302. A stopper 5314 is connected to limit the sliding of the connecting block three 5313, and a connecting rod 2 5315 is hinged between the connecting block 2 5310 and the connecting block three 5313. A connecting sleeve 5316 is also rotatably connected to the connecting block three 5313, and a connecting rod 5317 is also rotatably connected to the connecting cylinder 5202. The connecting rod 5317 is slidably connected to the connecting sleeve 5316, and a stopper 2 5318 is fixedly connected to the end of the connecting sleeve 5316. The stopper 2 5318 is used to limit the connecting rod 5317 to prevent the connecting rod 5317 from separating from the connecting sleeve 5316.

[0029] In this embodiment, the crystal discharge mechanism 6 includes a connecting plate 4 601 fixedly connected to the supporting plate 4, and a screw 602 is rotatably connected to the connecting plate 4 601. The tops of the two guide rods 5108 are fixedly connected to connecting brackets 2 603, and the connecting brackets 2 603 are rotatably connected to the screw 602. The lifting bracket 5109 is fixedly connected to a ball nut sleeve 604, and the ball nut sleeve 604 is threadedly connected to the screw 602. The upper end of the screw rod 602 is rotatably connected to a hollow rod 605, to which a gear 2 606 is fixedly connected, and the gear 2 606 meshes with a gear 1 5204. An end face ratchet 1 607 is fixedly connected to the screw rod 602, and an end face ratchet 2 608 is slidably connected to the hollow rod 605. A spring 3 609 is connected between the end face ratchet 2 608 and the gear 2 606, and the end face ratchet 1 607 and the end face ratchet 2 608 mesh.

[0030] In this embodiment, when the lifting rod 5203 moves upward, the rotation direction of the screw rod 602 makes it impossible for the end ratchet wheel 1 607 to drive the end ratchet wheel 2 608 to rotate. At the same time, when the gear 1 5204 is driven to rotate by the rack 5111, the direction in which the gear 1 5204 drives the gear 2 606 to rotate cannot cause the end ratchet wheel 2 608 to drive the end ratchet wheel 1 607 to rotate, thereby avoiding the device from getting stuck.

[0031] In this embodiment, a guide plate 610 is fixedly connected to the barrel 201. When the filter plate 206 drives the magnesium sulfate crystals thereon to rotate, the guide plate 610 can guide the magnesium sulfate crystals blocked by it to move toward the edge of the filter plate 206. A discharge port 611 is provided on the barrel 201. The discharge port 611 is located at the end of the guide plate 610. A mounting bracket three 612 is provided at the discharge port 611. A sealing block 613 is slidably connected to the mounting bracket three 612. A threaded hole 614 is provided on the mounting bracket three 612. A screw 615 is threadedly connected in the threaded hole 614. The screw 615 is rotatably connected to the sealing block 613. A rotating handle 616 is also fixedly connected to the end of the screw 615.

[0032] In this embodiment, when the discharge port 611 needs to be opened, the handle 616 is rotated to drive the screw 615 to rotate. As the screw 615 rotates, the sealing block 613 is also driven to move outward, so that the discharge port 611 is opened, and all the magnesium sulfate crystals on the surface of the filter plate 206 can be discharged.

[0033] In this embodiment, when the magnesium sulfate solution is located in the cooling cylinder 207, the end scraper 54 is located above the liquid surface of the magnesium sulfate solution, so that the crystals precipitated from the magnesium sulfate solution will not adhere to the surface of components other than the cooling cylinder 207, thereby ensuring that the precipitated magnesium sulfate crystals can basically all be discharged from the discharge port 611.

[0034] In this embodiment, a liquid inlet 208 is further provided on the cylinder 201 . The liquid inlet 208 is located above the liquid storage hopper 203 . A sealing plug 209 is threadedly connected to the liquid inlet 208 .

[0035] In this embodiment, the rotating mechanism 3 includes a driving motor 301 fixedly connected to the mounting frame 1, a worm 302 is fixedly connected to the output shaft of the driving motor 301, a worm wheel 303 is fixedly connected to the cylinder 201, and the worm wheel 303 is meshed with the worm 302.

[0036] When the crystallization separation device for magnesium sulfate production is used, it comprises the following steps: Remove the closing plug 209, add a certain amount of magnesium sulfate solution from the liquid inlet 208 to the liquid hopper 203, and then seal the liquid inlet 208 with the closing plug 209 after completion, and then energize the resistance wire 205, the resistance wire 205 generates heat to heat the magnesium sulfate solution in the liquid hopper 203, and after the magnesium sulfate solution reaches a certain temperature, the resistance wire 205 is powered off, and then the drive motor 201 is started, and the drive motor 201 drives the cylinder 201 to rotate 180 degrees through the meshing worm gear 303 and the worm 302, and the heated magnesium sulfate solution flows into the cooling cylinder 207 through the filter plate 206, and as the magnesium sulfate solution gradually cools, magnesium sulfate crystals gradually precipitate and adhere to the inner wall of the cooling cylinder 207 or mix in the solution; After a period of time, the drive motor 2 301 is started again, and the cylinder 201 is rotated 180 degrees again, so that the magnesium sulfate solution flows into the liquid hopper 203 again, and the magnesium sulfate crystals mixed in the solution are all filtered out by the filter plate 206, and then the magnesium sulfate solution in the liquid hopper 203 is reheated and the drive motor 1 5103 is started. The drive motor 1 5103 drives the pulley 5104 to rotate through the rotating shaft 5102, and the pulley 5104 drives the belt 5105 and the guide rod 5106 connected thereto to move. When the guide rod 5106 moves upward, it drives the lifting bracket 5109 to move upward along the guide rod 1 5108 through the connecting bracket, and the lifting bracket 5109 drives the lifting rod 5203 connected thereto to move upward. The lifting distance of the lifting rod 5203 is just enough to make the end scraper 54 stick to the inner end surface of the cooling cylinder 207. During the upward movement of the lifting rod 5203, the connecting rod 5317 also slides along the connecting sleeve 5316. When the lifting rod 5203 approaches the highest point, the connecting rod 5317 is blocked by the second stopper 5318 and can no longer slide relative to the connecting sleeve 5316. Then, the lifting rod 5203 causes the connecting block 3 5313 to slide toward the stopper 1 5314 under the traction of the connecting rod 5317 and the connecting sleeve 5316. The sliding of the connecting block 3 5313 drives the connecting block 2 5310 to move upward along the guide rod 2 5309 through the connecting rod 2 5315. The upward movement of the connecting block 2 5310 drives the connecting block 1 5308 and the side wall scraper 5305 to move outward through the connecting rod 1 5312. When the connecting rod 5317 moves to the highest point, the side wall scraper 5305 is in contact with the inner wall of the cooling cylinder 207. After the guide rod 5106 moves upward, it moves horizontally, driving the rack 5111 on the connecting bracket to move horizontally and make the rack 5111 mesh with the gear 1 5204. The gear 1 5204 and the connecting cylinder 5202 are driven by the rack 5111 to rotate 180 degrees. The end scraper 54 and the side scraper 5305 indirectly connected to the connecting cylinder 5202 are also driven to rotate 180 degrees, scraping off the magnesium sulfate crystals attached to the inner wall of the cooling cylinder 207, so that the magnesium sulfate crystals fall onto the filter plate 206. The guide rod 5106 will start to move downward after translation. When the guide rod 5106 is reset, the driving motor 1 5103 is turned off, the guide rod 5106 is reset, so that the lifting rod 5203 is also reset downward, and the side wall scraper 5305 also moves inward. When the side wall scraper 5305 moves in the box, the cleaning plates 5306 on both sides of the side wall scraper 5305 are always in contact with the side wall scraper 5305 under the push of the spring 1 5307, so that the magnesium sulfate crystals adhering to the side wall scraper 5305 can be scraped off and the side wall scraper 5305 is cleaned. During the downward movement of the lifting rod 5203, the ball nut sleeve 604 on the lifting bracket 5109 moves downward along the screw rod 602, thereby driving the screw rod 602 to rotate, and the screw rod 602 drives the hollow rod 605 to rotate through the meshing end face ratchet 1 607 and the end face ratchet 2 608, and the hollow rod 605 drives the connecting cylinder 5202 and the filter plate 206 to rotate through the meshing gear 2 606 and the gear 1 5204. When the filter plate 206 rotates, the magnesium sulfate crystals on the filter plate 206 blocked by the guide plate 610 move toward the edge of the filter plate 206 under guidance, and when the discharge port 611 is opened, the magnesium sulfate crystals on the edge of the filter plate 206 can be discharged from the discharge port 611; After the magnesium sulfate solution is heated again, the cylinder 201 can be turned over to perform crystallization again.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A crystallization separation device for magnesium sulfate production, comprising two parallel mounting frames (1) fixedly connected to the ground, and a crystallization cylinder (2) is arranged on the two mounting frames (1), characterized in that: The crystallization cylinder (2) comprises a cylinder (201), the lower end of the cylinder (201) is fixedly connected to a bottom plate (202), the bottom plate (202) is fixedly connected to a liquid storage bucket (203), the liquid storage bucket (203) is also fixedly connected to the inner wall of the cylinder (201), the lower end of the liquid storage bucket (203) is fixedly connected to a liquid discharge valve (204), the outer side of the liquid storage bucket (203) is fixedly connected to a resistance wire (205), the resistance wire (205) can heat the magnesium sulfate solution in the liquid storage bucket (203) after being energized, a filter plate (206) is rotatably connected to the central position of the crystallization cylinder (2), the filter plate (206) is used to filter the precipitated magnesium sulfate crystals, and the upper end of the cylinder (201) is fixedly connected to a cooling cylinder (207), the cooling cylinder (207) is used to cool the magnesium sulfate solution to precipitate magnesium sulfate crystals; The cylinder (201) is rotatably connected to the two mounting frames (1); a rotating mechanism (3) is connected between the cylinder (201) and the mounting frames (1); the rotating mechanism (3) is used to drive the cylinder (201) to rotate; when the cylinder (201) rotates 180 degrees intermittently, the magnesium sulfate solution stays alternately in the liquid storage bucket (203) and the cooling cylinder (207); A support plate (4) is also fixedly connected inside the cylinder (201), and a crystal scraping mechanism (5) and a crystal discharging mechanism (6) are arranged on the support plate (4). The crystal scraping mechanism (5) is used to scrape off magnesium sulfate crystals attached to the inner wall of the cooling cylinder (207), and the crystal discharging mechanism (6) is used to discharge magnesium sulfate crystals that have fallen on the filter plate (206). The crystal scraping mechanism (5) comprises a driving component (51), a connecting component (52), two side wall scraping components (53) and an end surface scraper (54). The two side wall scraping components (53) are symmetrically arranged on the connecting component (52). The support plate (4) is also fixedly connected to a waterproof shell (7).

2. A crystallization separation device for magnesium sulfate production according to claim 1, characterized in that: The driving assembly (51) comprises a mounting bracket (5101) fixedly connected to a supporting plate (4), the mounting bracket (5101) being evenly rotatably connected to four rotating shafts (5102), the supporting plate (4) being further fixedly connected to a driving motor (5103), the output shaft of the driving motor (5103) being fixedly connected to one of the rotating shafts (5102), each of the rotating shafts (5102) being fixedly connected to a pulley (5104), the four pulleys (5104) being connected to belts (5105), the belts (5105) being connected to the belts (5106) and the belts (5107) being connected to the rotating shafts (5107). 5) is fixedly connected to a guide rod (5106), the support plate (4) is also fixedly connected to a connecting plate 1 (5107), the connecting plate 1 (5107) is fixedly connected to two parallel guide rods 1 (5108), the two guide rods 1 (5108) are slidably connected to a lifting bracket (5109), the guide rod (5106) is rotatably connected to a connecting bracket 1 (5110), the connecting bracket 1 (5110) is slidably connected to the lifting bracket (5109), and the connecting bracket 1 (5110) is also fixedly connected to a rack (5111).

3. A crystallization separation device for magnesium sulfate production according to claim 2, characterized in that: The connecting assembly (52) comprises a fixed bracket (5201) fixedly connected to the cylinder (201), a connecting cylinder (5202) being rotatably connected to the fixed bracket (5201), a lifting rod (5203) being slidably connected to the connecting cylinder (5202), the lower end of the lifting rod (5203) being fixedly connected to the lifting bracket (5109), a gear 1 (5204) being fixedly connected to the connecting cylinder (5202), and a gear 2 (5204) being fixedly connected to the gear rack. After the rack (5111) moves vertically to the same height as gear one (5204), the rack (5111) starts to move horizontally and meshes with gear one (5204), driving gear one (5204) to rotate 180 degrees. The connecting cylinder (5202) is also fixedly connected to the filter plate (206). The connecting cylinder (5202) is also rotatably connected to the waterproof shell (7). The top end of the lifting rod (5203) is also fixedly connected to an end scraper (54).

4. A crystallization separation device for magnesium sulfate production according to claim 3, characterized in that: The side wall scraping assembly (53) comprises a fixing plate (5301) fixedly connected to the lifting rod (5203), a connecting plate 2 (5302) and a connecting plate 3 (5303) being fixed to the fixing plate (5301), a mounting bracket 2 (5304) being fixedly connected to the ends of the connecting plate 2 (5302) and the connecting plate 3 (5303), a side wall scraper (5305) being slidably connected to the mounting bracket 2 (5304), two symmetrically arranged cleaning plates (5306) being slidably connected to the mounting bracket 2 (5304), and a plurality of springs 1 (5307) being connected between the two cleaning plates (5306) and the mounting bracket 2 (5304); The side wall scraper (5305) is fixedly connected with a connecting block 1 (5308), a guide rod 2 (5309) is fixedly connected between the connecting plate 2 (5302) and the connecting plate 3 (5303), a connecting block 2 (5310) is slidably connected to the guiding rod 2 (5309), a spring 2 (5311) is connected between the connecting block 2 (5310) and the end of the guiding rod 2 (5309), a connecting rod 1 (5312) is hingedly connected between the connecting block 1 (5308) and the connecting block 2 (5310), a connecting block 3 (5313) is slidably connected to the connecting plate 2 (5302), and a spring 2 (5311) is fixedly connected to the connecting plate 2 (5302). A stopper block 1 (5314) is provided to limit the sliding movement of the connecting block 3 (5313); a connecting rod 2 (5315) is hingedly connected between the connecting block 2 (5310) and the connecting block 3 (5313); a connecting sleeve (5316) is rotatably connected to the connecting block 3 (5313); a connecting rod (5317) is rotatably connected to the connecting cylinder (5202); the connecting rod (5317) is slidably connected to the connecting sleeve (5316); a stopper block 2 (5318) is fixedly connected to the end of the connecting sleeve (5316); the stopper block 2 (5318) is used to limit the connecting rod (5317) to prevent the connecting rod (5317) from separating from the connecting sleeve (5316).

5. A crystallization separation device for magnesium sulfate production according to claim 2, characterized in that: The crystal discharge mechanism (6) comprises a connecting plate 4 (601) fixedly connected to the supporting plate (4), a screw rod (602) being rotatably connected to the connecting plate 4 (601), a connecting bracket 2 (603) being fixedly connected to the top ends of the two guide rods 1 (5108), the connecting bracket 2 (603) being rotatably connected to the screw rod (602), a ball nut sleeve (604) being fixedly connected to the lifting bracket (5109), the ball nut sleeve (604) being threadedly connected to the screw rod (602), the screw rod (602) being fixedly connected to the lifting bracket (5109), 02) is rotatably connected to the upper end thereof with a hollow rod (605), the hollow rod (605) is fixedly connected to a gear 2 (606), the gear 2 (606) is meshed with a gear 1 (5204), the screw rod (602) is fixedly connected to an end face ratchet 1 (607), the hollow rod (605) is slidably connected to an end face ratchet 2 (608), a spring 3 (609) is connected between the end face ratchet 2 (608) and the gear 2 (606), the end face ratchet 1 (607) and the end face ratchet 2 (608) are meshed; The barrel (201) is fixedly connected to a guide plate (610). When the filter plate (206) drives the magnesium sulfate crystals thereon to rotate, the guide plate (610) can guide the magnesium sulfate crystals blocked by the guide plate (610) to move toward the edge of the filter plate (206). The barrel (201) is provided with a discharge port (611). The discharge port (611) is located at the end of the guide plate (610). A mounting bracket three (612) is provided at the discharge port (611). A sealing block (613) is slidably connected to the mounting bracket three (612). A threaded hole (614) is provided on the mounting bracket three (612). A screw rod (615) is threadedly connected in the threaded hole (614). The screw rod (615) is rotationally connected to the sealing block (613). A rotating handle (616) is also fixedly connected to the end of the screw rod (615).

6. A crystallization separation device for magnesium sulfate production according to claim 1, characterized in that: The cylinder (201) is also provided with a liquid inlet (208), the liquid inlet (208) being located above the liquid storage bucket (203), and a sealing plug (209) being threadedly connected to the liquid inlet (208).

7. A crystallization separation device for magnesium sulfate production according to claim 1, characterized in that: The rotating mechanism (3) comprises a second driving motor (301) fixedly connected to the mounting frame (1); a worm (302) is fixedly connected to the output shaft of the second driving motor (301); a worm wheel (303) is fixedly connected to the barrel (201); and the worm wheel (303) meshes with the worm (302).

8. A method for using a crystallization separation device for magnesium sulfate production, using a crystallization separation device for magnesium sulfate production as described in any one of claims 1 to 7, characterized in that: The steps include: The sealing plug (209) is removed, and a certain amount of magnesium sulfate solution is added from the liquid inlet (208) to the liquid storage bucket (203). After completion, the liquid inlet (208) is sealed with the sealing plug (209), and then the resistance wire (205) is energized, and the resistance wire (205) generates heat to heat the magnesium sulfate solution in the liquid storage bucket (203). After the magnesium sulfate solution reaches a certain temperature, the resistance wire (205) is powered off, and then the drive motor 2 (301) is started. The drive motor 2 (301) drives the cylinder (201) to rotate 180 degrees through the meshing worm gear (303) and the worm (302). The heated magnesium sulfate solution flows into the cooling cylinder (207) through the filter plate (206). As the magnesium sulfate solution gradually cools, magnesium sulfate crystals gradually precipitate and adhere to the inner wall of the cooling cylinder (207) or mix in the solution; After a period of time, the drive motor 2 (301) is started again, causing the cylinder (201) to rotate 180 degrees again, so that the magnesium sulfate solution flows back into the liquid storage bucket (203), and the magnesium sulfate crystals mixed in the solution are all filtered out by the filter plate (206), and then the magnesium sulfate solution in the liquid storage bucket (203) is reheated and the drive motor 1 (5103) is started. The drive motor 1 (5103) drives the pulley (5102) through the rotating shaft (5102). 04) rotates, the pulley (5104) drives the belt (5105) and the guide rod (5106) connected thereto to move, when the guide rod (5106) moves upward, it drives the lifting bracket (5109) to move upward along the guide rod 1 (5108) through the connecting bracket, and the lifting bracket (5109) drives the lifting rod (5203) connected thereto to move upward, and the lifting rod (5203) moves upward by a distance that just allows the end scraper (54) to be in contact with the inner end surface of the cooling cylinder (207); During the upward movement of the lifting rod (5203), the connecting rod (5317) also slides along the connecting sleeve (5316). When the lifting rod (5203) approaches the highest point, the connecting rod (5317) is blocked by the second stopper (5318) and can no longer slide relative to the connecting sleeve (5316). Then, the lifting rod (5203) causes the connecting block (5313) to move toward the first stopper under the traction of the connecting rod (5317) and the connecting sleeve (5316). (5314) slides, the sliding of the connecting block three (5313) will drive the connecting block two (5310) to move upward along the guide rod two (5309) through the connecting rod two (5315), and the upward movement of the connecting block two (5310) will drive the connecting block one (5308) and the side wall scraper (5305) to move outward through the connecting rod one (5312), and when the connecting rod (5317) moves to the highest point, the side wall scraper (5305) is in contact with the inner wall of the cooling cylinder (207); After the guide rod (5106) moves upward, it moves horizontally, driving the rack (5111) on the connecting bracket to move horizontally and causing the rack (5111) to mesh with gear one (5204). Gear one (5204) and the connecting cylinder (5202) are driven by the rack (5111) to rotate 180 degrees. The end scraper (54) and the side scraper (5305) indirectly connected to the connecting cylinder (5202) are also driven to rotate 180 degrees, scraping off the magnesium sulfate crystals attached to the inner wall of the cooling cylinder (207), causing the magnesium sulfate crystals to fall onto the filter plate (206); The guide rod (5106) will start to move downward after translation. When the guide rod (5106) is reset, the drive motor 1 (5103) is turned off, the guide rod (5106) is reset, so that the lifting rod (5203) is also moved downward and reset, and the side wall scraper (5305) will also move inward. When the side wall scraper (5305) moves in the box, the cleaning plates (5306) on both sides of the side wall scraper (5305) are always in contact with the side wall scraper (5305) under the push of the spring 1 (5307), so that the magnesium sulfate crystals adhering to the side wall scraper (5305) can be scraped off, and the side wall scraper (5305) is cleaned; During the downward movement of the lifting rod (5203), the ball nut sleeve (604) on the lifting bracket (5109) moves downward along the screw rod (602), thereby driving the screw rod (602) to rotate. The screw rod (602) drives the hollow rod (605) to rotate through the meshing end face ratchet wheel 1 (607) and the meshing end face ratchet wheel 2 (608). The hollow rod (605) drives the connecting cylinder (5202) and the filter plate (206) to rotate through the meshing gear wheel 2 (606) and the gear wheel 1 (5204). When the filter plate (206) rotates, the magnesium sulfate crystals on the filter plate (206) blocked by the guide plate (610) move toward the edge of the filter plate (206) under the guidance. When the discharge port (611) is opened, the magnesium sulfate crystals on the edge of the filter plate (206) can be discharged from the discharge port (611). After the magnesium sulfate solution is heated again, crystallization can be performed again by turning the cylinder (201).

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