Multistage filtering device for magnesium sulfate suspension

Abstract

The invention relates to the technical field of multi-stage filtering, in particular to a magnesium sulfate suspension multi-stage filtering device which comprises a main body cylinder, an anti-blocking filtering mechanism for detecting and dredging magnesium sulfate crystals is arranged in the main body cylinder, the anti-blocking filtering mechanism comprises a filtering plate, and the filtering plate is fixedly arranged on the inner side of the main body cylinder; a double-shaft motor is arranged in the filter plate, a first fixing plate is fixedly connected to the side face of a transmission shaft at the upper end of the double-shaft motor, a second fixing plate is fixedly connected to the side face of a transmission shaft at the lower end of the double-shaft motor, and a stirring and filtering mechanism for filtering and collecting magnesium sulfate suspension again is arranged at the position, close to the lower portion, of the inner side of the main cylinder. And the threaded rod is matched to drive the limiting block to move along the first limiting groove, so that the limiting block moves to the position below the blocked through hole, and then the first electric telescopic rod extends to drive the limiting column to dredge the blocked through hole.

Description

Technical Field

[0001] The invention relates to the technical field of multi-stage filtration, in particular to a multi-stage filtration device for magnesium sulfate suspension. Background Art

[0002] Magnesium sulfate is an inorganic compound widely used in agriculture, medicine and industry. Magnesium sulfate suspension is usually obtained by adding solid form of magnesium sulfate to water and then stirring it to make it evenly distributed. In practical applications, this suspension may need to be filtered or otherwise maintained stable to ensure that the magnesium sulfate particles therein do not precipitate. Therefore, when using the magnesium sulfate suspension, it is necessary to first filter the magnesium sulfate suspension through a filtering device.

[0003] The existing device for filtering the magnesium sulfate suspension is generally a horizontal centrifugal mixer, and a screen is provided on the side of the centrifugal mixer to collect the fixed particles in the magnesium sulfate suspension. During the filtration, the magnesium sulfate solution is easily precipitated with magnesium sulfate particles under the effects of stirring and temperature, thereby clogging the screen and reducing the filtration efficiency. Summary of the invention

[0004] The object of the present invention is to solve the shortcomings in the background technology and to provide a multi-stage filtering device for magnesium sulfate suspension.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a multi-stage filtering device for magnesium sulfate suspension, comprising a main body tube, wherein an anti-clogging filtering mechanism for detecting and unblocking magnesium sulfate crystals is arranged in the main body tube, the anti-clogging filtering mechanism comprises a filter plate, the filter plate is fixedly arranged on the inner side of the main body tube, a dual-axis motor is arranged inside the filter plate, a first fixed plate is fixedly connected to the side of the transmission shaft at the upper end of the dual-axis motor, a second fixed plate is fixedly connected to the side of the transmission shaft at the lower end of the dual-axis motor, and a stirring filtering mechanism for filtering and collecting the magnesium sulfate suspension again is arranged on the inner side of the main body tube at a position close to the bottom.

[0006] Preferably, a plurality of equidistantly arranged detectors are fixedly connected to the lower end of the first fixing plate.

[0007] Preferably, a first limit groove is provided at the upper end of the second fixed plate, a second motor is fixedly connected in the first limit groove, a transmission shaft end of the second motor is fixedly connected in the first limit groove with a threaded rod, a limit block is slidably provided in the first limit groove for the second fixed plate, and the limit block and the threaded rod are provided by threaded cooperation.

[0008] Preferably, the upper end of the limit block is fixedly connected to a first electric telescopic rod, and the telescopic end of the first electric telescopic rod is fixedly connected to a limit column.

[0009] Preferably, the upper end of the main body tube is an open structure, and a cover plate is provided on the upper end of the main body tube. A thread is provided on the side of the main body tube near the upper end, and a connecting ring is fixedly connected to the side of the cover plate and cooperates with the thread of the upper end of the main body tube. The lower end of the main body tube is fixedly connected to a plurality of symmetrically arranged support columns, and a feed hole is provided on the upper end of the cover plate.

[0010] Preferably, the stirring and filtering mechanism includes a plurality of symmetrically arranged support rods, the lower ends of a plurality of the support rods are fixedly connected to the lower end of the main body tube, the upper ends of a plurality of the support rods are fixedly connected to a connecting plate, the upper ends of the connecting plates are fixedly connected to a screen, and a water transfer cavity is provided on the inner side surface of the main body tube.

[0011] Preferably, the lower end of the connecting plate is fixedly connected to a third motor, the transmission shaft end of the third motor is fixedly connected to a rotating rod, the side of the rotating rod is fixedly connected to a plurality of groups of circumferentially arranged blades, each group of blades is composed of a plurality of blades equidistantly arranged, the end of a group of blades is fixedly connected to an adsorber, and a water outlet is provided at the lower end of the main body tube.

[0012] Preferably, the adsorber includes a fixed body, a side surface of the fixed body is fixedly arranged on the end of the blade, a second limiting groove is opened on one side of the fixed body, a plurality of equidistantly arranged springs are fixedly connected in the second limiting groove, the ends of the plurality of springs are fixedly connected to limiting plates which are slidably matched with the second limiting groove, and a scraper is fixedly connected to the end of the limiting plate.

[0013] Preferably, a third limiting groove is opened on the side of the fixed body, a flexible sealing plate is fixedly connected in the third limiting groove, a plurality of air outlet holes are opened at equal intervals in the sealing plate on the side of the fixed body, a cavity communicating with the air outlet holes is opened in the fixed body, and an air pump communicating with the cavity is arranged on the side of the fixed body.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The double-axis motor drives the first fixed plate and the second fixed plate to rotate. A plurality of detectors are arranged below the first fixed plate to detect whether the through holes in the filter plate below are blocked. When a through hole is blocked, the detector and the second motor are connected by wires, and the second motor rotates at this time, and the second motor drives the threaded rod to rotate. The threaded rod cooperates to drive the limit block to move along the first limit groove, so that the limit block moves to the bottom of the blocked through hole. Then the first electric telescopic rod is extended to drive the limit column to dredge the blocked through hole, thereby preventing crystals from blocking the through holes of the filter plate when filtering the magnesium sulfate suspension, thereby increasing the filtering speed; The third motor drives the rotating rod to rotate, and the rotating rod drives several blades to rotate, so as to fully stir the magnesium sulfate solution. In order to improve the purity of the magnesium sulfate solution, some medicines are usually added during stirring to convert impurity ions into solid particles. Such solid particles generally need to pass through a fine screen to be filtered. At this time, the solution in the main cylinder moves outward under the stirring of the blades and is filtered through the screen. During filtration, the impurity particles are easily attached to the vicinity of the screen under the stirring of the blades. At this time, the fixed body at the end of the blade rotates, and a number of air outlets are opened on the side of the fixed body. The several air outlets absorb the screen under the action of the air pump, and the impurity particles are separated from the screen. Then, the impurity particles are scraped off by the scraper on the side of the fixed body to ensure the filtration speed and quality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 The present invention is a sectional view of the whole Figure 1 ; Figure 3 The present invention is a sectional view of the whole Figure 2 ; Figure 4 The cross-sectional view of the adsorber of the present invention Figure 1 ; Figure 5 The cross-sectional view of the adsorber of the present invention Figure 2 ; Figure 6 The cross-sectional view of the adsorber of the present invention Figure 3 ; Figure 7 for Figure 2 A magnified image of point A; Figure 8 for Figure 2 A magnified view of point B; Fig. 9 for Figure 3 Enlarged view of point C; Fig.10 for Figure 3 Enlarged view of point D.

[0016] 1. Main body tube; 2. Support column; 3. Cover plate; 4. Anti-clogging filter mechanism; 5. Stirring filter mechanism; 31. Feed hole; 32. Connecting ring; 41. Filter plate; 42. First fixed plate; 43. Detector; 44. Double-axis motor; 45. Second fixed plate; 46. Second motor; 47. Threaded rod; 48. First limit groove; 49. Limit block; 410. First electric telescopic rod; 411. Limit column; 5 1. Connecting plate; 52. Adsorbent; 53. Third motor; 54. Rotating rod; 55. Blade; 56. Support rod; 57. Screen; 58. Water outlet; 59. Water delivery cavity; 521. Fixed body; 522. Scraper; 523. Limiting plate; 524. Air pump; 525. Spring; 526. Second limiting groove; 527. Sealing plate; 528. Third limiting groove; 529. Air outlet; 5210. Cavity. DETAILED DESCRIPTION

[0017] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0018] See also Figure 1 - Fig.10 A multi-stage filtering device for magnesium sulfate suspension comprises a main body tube 1, wherein the main body tube 1 is provided with an anti-clogging filtering mechanism 4 for detecting and clearing magnesium sulfate crystals.

[0019] In this embodiment, the anti-clogging filter mechanism 4 includes a filter plate 41, which is fixedly arranged on the inner side of the main tube 1. A dual-axis motor 44 is arranged inside the filter plate 41. The side of the transmission shaft at the upper end of the dual-axis motor 44 is fixedly connected to a first fixed plate 42, and the side of the transmission shaft at the lower end of the dual-axis motor 44 is fixedly connected to a second fixed plate 45.

[0020] A plurality of detectors 43 arranged equidistantly are fixedly connected to the lower end of the first fixing plate 42 .

[0021] A first limiting groove 48 is formed at the upper end of the second fixing plate 45, and a second motor 46 is fixedly connected in the first limiting groove 48. A threaded rod 47 is fixedly connected to the transmission shaft end of the second motor 46 in the first limiting groove 48. A limiting block 49 is slidably provided in the first limiting groove 48 of the second fixing plate 45, and the limiting block 49 is provided with threaded cooperation with the threaded rod 47.

[0022] The upper end of the limiting block 49 is fixedly connected to a first electric telescopic rod 410 , and the telescopic end of the first electric telescopic rod 410 is fixedly connected to a limiting column 411 .

[0023] The upper end of the main barrel 1 is an open structure, and a cover plate 3 is provided on the upper end of the main barrel 1. A thread is provided on the side of the main barrel 1 near the upper end, and a connecting ring 32 is fixedly connected to the side of the cover plate 3 and matched with the thread of the upper end of the main barrel 1. The lower end of the main barrel 1 is fixedly connected to a plurality of symmetrically arranged support columns 2, and a feed hole 31 is provided on the upper end of the cover plate 3.

[0024] Specifically, the dual-axis motor 44 drives the first fixing plate 42 and the second fixing plate 45 to rotate. A plurality of detectors 43 are arranged below the first fixing plate 42 to detect whether the through holes in the filter plate 41 below are blocked.

[0025] In this embodiment, a stirring and filtering mechanism 5 for filtering and collecting the magnesium sulfate suspension again is provided on the inner side of the main tube 1 at a position close to the bottom.

[0026] The stirring and filtering mechanism 5 includes a plurality of symmetrically arranged support rods 56, the lower ends of the plurality of support rods 56 are fixedly connected to the lower end of the main body tube 1, the upper ends of the plurality of support rods 56 are fixedly connected to a connecting plate 51, the upper end of the connecting plate 51 is fixedly connected to a screen 57, and a water transfer cavity 59 is provided on the inner side surface of the main body tube 1.

[0027] The lower end of the connecting plate 51 is fixedly connected to a third motor 53, the transmission shaft end of the third motor 53 is fixedly connected to a rotating rod 54, the side of the rotating rod 54 is fixedly connected to a plurality of groups of circumferentially arranged blades 55, each group of the blades 55 is composed of a plurality of blades 55 arranged equidistantly, the end of a group of the blades 55 is fixedly connected to an adsorber 52, and a water outlet 58 is provided at the lower end of the main body tube 1.

[0028] The adsorber 52 includes a fixed body 521, a side of which is fixedly arranged at the end of the blade 55, a second limiting groove 526 is opened on one side of the fixed body 521, a plurality of equidistantly arranged springs 525 are fixedly connected in the second limiting groove 526, the ends of the plurality of springs 525 are fixedly connected to limiting plates 523 which are slidably matched with the second limiting groove 526, and a scraper 522 is fixedly connected to the end of the limiting plate 523.

[0029] A third limiting groove 528 is provided on the side of the fixed body 521, and a flexible sealing plate 527 is fixedly connected in the third limiting groove 528. A plurality of air outlet holes 529 are equidistantly provided on the side of the fixed body 521 in the sealing plate 527. A cavity 5210 communicating with the air outlet holes 529 is provided in the fixed body 521, and an air pump 524 communicating with the cavity 5210 is arranged on the side of the fixed body 521.

[0030] Specifically, the impurity particles are easily attached to the vicinity of the screen 57 under the stirring of the blade 55. At this time, the fixed body 521 at the end of the blade 55 rotates, and a plurality of air outlet holes 529 are opened on the side of the fixed body 521. The plurality of air outlet holes 529 absorb the screen 57 under the action of the air pump 524, and separate the impurity particles from the screen 57. Then, the scraper 522 on the side of the fixed body 521 scrapes off the impurity particles, thereby ensuring the filtering speed and quality of the device.

[0031] During use, the magnesium sulfate suspension is poured into the main tube 1 through the feed hole 31, and then the magnesium sulfate suspension is filtered through the filter plate 41 under the action of gravity. During filtration, the magnesium sulfate suspension may crystallize in the through holes on the filter plate 41. At this time, the dual-axis motor 44 drives the first fixed plate 42 and the second fixed plate 45 to rotate. A plurality of detectors 43 are arranged below the first fixed plate 42 to detect whether the through holes in the filter plate 41 below are blocked. When a through hole is blocked, the detector 43 and the second motor 46 are connected by wires. At this time, the second motor 46 rotates, and the second motor 46 drives the threaded rod 47 to rotate. The threaded rod 47 cooperates to drive the limit block 49 to move along the first limit groove 48, so that the limit block 49 moves to the bottom of the blocked through hole. After that, the first electric telescopic rod 410 extends, driving the limit column 411 to dredge the blocked through hole, thereby preventing the crystal from blocking the through hole of the filter plate 41 when filtering the magnesium sulfate suspension, thereby increasing the filtration speed.

[0032] The magnesium sulfate solution filtered by the filter plate 41 accumulates in the main body tube 1. At this time, the third motor 53 is started, and the third motor 53 drives the rotating rod 54 to rotate, and the rotating rod 54 drives a plurality of blades 55 to rotate, so as to fully stir the magnesium sulfate solution. In order to improve the purity of the magnesium sulfate solution, some drugs are added during stirring to convert the impurity ions into solid particles. Such solid particles generally need to pass through a fine screen 57 to be filtered. At this time, the solution in the main body tube 1 moves outward under the stirring of the blades 55 and passes through the screen. 57 is used for filtering. During filtering, foreign particles are easily attached to the vicinity of the screen 57 under the stirring of the blade 55. At this time, the fixed body 521 at the end of the blade 55 rotates, and a plurality of air outlets 529 are provided on the side of the fixed body 521. The plurality of air outlets 529 absorb the screen 57 under the action of the air pump 524, and the foreign particles are separated from the screen 57. Then, the foreign particles are scraped off by the scraper 522 on the side of the fixed body 521 to ensure the filtering speed and quality of the device. The filtered magnesium sulfate solution is discharged through the water outlet 58.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A magnesium sulfate suspension multi-stage filtration device, comprising a main body tube (1), characterized in that: An anti-clogging filter mechanism (4) for detecting and clearing magnesium sulfate crystals is arranged inside the main body tube (1). The anti-clogging filter mechanism (4) comprises a filter plate (41). The filter plate (41) is fixedly arranged on the inner side of the main body tube (1). A double-shaft motor (44) is arranged inside the filter plate (41). A first fixed plate (42) is fixedly connected to the side of the transmission shaft at the upper end of the double-shaft motor (44). A second fixed plate (45) is fixedly connected to the side of the transmission shaft at the lower end of the double-shaft motor (44). A stirring filter mechanism (5) for filtering and collecting the magnesium sulfate suspension again is arranged at a position close to the bottom of the inner side of the main body tube (1).

2. A magnesium sulfate suspension multistage filtration device according to claim 1, characterized in that: A plurality of detectors (43) arranged at equal distances are fixedly connected to the lower end of the first fixing plate (42).

3. A magnesium sulfate suspension multistage filtration device according to claim 1, characterized in that: A first limiting groove (48) is formed at the upper end of the second fixing plate (45), a second motor (46) is fixedly connected in the first limiting groove (48), a transmission shaft end of the second motor (46) is fixedly connected in the first limiting groove (48) to a threaded rod (47), and a limiting block (49) is slidably arranged in the second fixing plate (45) in the first limiting groove (48), and the limiting block (49) and the threaded rod (47) are arranged by threaded engagement.

4. A magnesium sulfate suspension multistage filtration device according to claim 3, characterized in that: The upper end of the limit block (49) is fixedly connected to a first electric telescopic rod (410), and the telescopic end of the first electric telescopic rod (410) is fixedly connected to a limit column (411).

5. A magnesium sulfate suspension multi-stage filtration device according to claim 1, characterized in that: The upper end of the main body tube (1) is an open structure, a cover plate (3) is provided at the upper end of the main body tube (1), a side surface of the main body tube (1) is provided with a thread at a position close to the upper end, a connecting ring (32) is fixedly connected to the side surface of the cover plate (3) and is matched with the thread of the upper end of the main body tube (1), a plurality of symmetrically arranged support columns (2) are fixedly connected to the lower end of the main body tube (1), and a feed hole (31) is provided at the upper end of the cover plate (3).

6. A magnesium sulfate suspension multi-stage filtration device according to claim 1, characterized in that: The stirring and filtering mechanism (5) comprises a plurality of symmetrically arranged support rods (56), the lower ends of the plurality of support rods (56) being fixedly connected to the lower end of the main body tube (1), the upper ends of the plurality of support rods (56) being fixedly connected to a connecting plate (51), the upper ends of the connecting plates (51) being fixedly connected to a screen (57), and a water transfer cavity (59) being provided on the inner side surface of the main body tube (1).

7. A magnesium sulfate suspension multi-stage filtration device according to claim 6, characterized in that: The lower end of the connecting plate (51) is fixedly connected to a third motor (53), the transmission shaft end of the third motor (53) is fixedly connected to a rotating rod (54), the side of the rotating rod (54) is fixedly connected to a plurality of groups of circumferentially arranged blades (55), each group of blades (55) is composed of a plurality of blades (55) arranged at equal intervals, the end of a group of blades (55) is fixedly connected to an absorber (52), and a water outlet (58) is provided at the lower end of the main body tube (1).

8. A magnesium sulfate suspension multi-stage filtration device according to claim 7, characterized in that: The adsorber (52) comprises a fixed body (521), the side surface of the fixed body (521) being fixedly arranged at the end of the blade (55), a second limiting groove (526) being provided on one side of the fixed body (521), a plurality of springs (525) being fixedly connected in the second limiting groove (526) and arranged at equal intervals, the ends of the plurality of springs (525) being fixedly connected to limiting plates (523) slidably matched with the second limiting groove (526), ​​and the end of the limiting plate (523) being fixedly connected to a scraper (522).

9. A magnesium sulfate suspension multi-stage filtration device according to claim 8, characterized in that: A third limiting groove (528) is provided on the side of the fixed body (521), a flexible sealing plate (527) is fixedly connected in the third limiting groove (528), a plurality of air outlet holes (529) are provided at equal intervals in the sealing plate (527) on the side of the fixed body (521), a cavity (5210) in communication with the air outlet holes (529) is provided in the fixed body (521), and an air pump (524) in communication with the cavity (5210) is provided on the side of the fixed body (521).

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