A nano-scale silicon dioxide rapid precipitation and separation device

Abstract

The present invention relates to a nano-scale silica rapid precipitation and separation device, belonging to the technical field of silica precipitation equipment. The nano-scale silica rapid precipitation and separation device comprises: a sedimentation tank, a tank body, a water pump, and a controller. The tank body is arranged at the top of the sedimentation tank and is connected to the sedimentation tank. The water pump is connected to the sedimentation tank. The controller is arranged at the top of the sedimentation tank. The inner top wall of the sedimentation tank is provided with a liquid level sensor used in conjunction with the controller. The purification mechanism utilizes the mutual cooperation of a primary filtration membrane and an ultrafiltration membrane to sequentially perform rapid graded sedimentation and separation of silica particles in a mixed solution. The silica particles adhere to the surfaces of the primary filtration membrane and the ultrafiltration membrane according to the influence of the liquid flow direction. The changes in the liquid level can be used to timely clean and discharge them. This method can reduce the time of traditional sedimentation, quickly complete the graded sedimentation and separation of silica particles, and improve the efficiency of silica preparation.

Description

Technical Field

[0001] The invention relates to the technical field of silicon dioxide precipitation equipment, in particular to a nano-scale silicon dioxide rapid precipitation and separation device. Background Art

[0002] When preparing nano-silica, the solvent must be mixed first, reacted, and then quickly precipitated and separated to facilitate subsequent washing, drying, and application. Therefore, how to perform sedimentation separation is an urgent problem that needs to be solved.

[0003] After searching, the Chinese patent "A silicon dioxide precipitation and classification device", authorization announcement number "CN220714900U" is provided. This application can discharge the mixed liquid into the corresponding precipitation chamber for precipitation operation by setting multiple precipitation chambers. According to the sequence, the mixed liquid can be allowed to stand and settle for a certain period of time. In addition, through the evaporation cylinder provided, as the liquid in the precipitation chamber and part of the silicon dioxide are transported to the evaporation cylinder, the evaporation, concentration and precipitation operation can be continued to achieve the effect of graded precipitation, which can ensure that the silicon dioxide precipitation treatment is more thorough and achieve a more thorough effect of graded precipitation.

[0004] Although the above application can achieve graded precipitation of nano-silica, it requires sufficient time for the mixed solution to settle in a certain period of time in a certain order. The long sedimentation time will seriously affect the preparation efficiency of nano-silica. Summary of the Invention

[0005] Based on this, it is necessary to provide a nano-scale silica rapid precipitation and separation device to address the problem that static sedimentation takes a long time and affects the efficiency of nano-scale silica preparation.

[0006] A nano-scale silicon dioxide rapid precipitation and separation device, comprising:

[0007] A sedimentation box, a tank body, a water pump and a controller. The tank body is arranged at the top of the sedimentation box and is connected to the sedimentation box. The water pump is connected to the sedimentation box. The controller is arranged at the top of the sedimentation box. A liquid level sensor used in conjunction with the controller is arranged on the inner top wall of the sedimentation box. A mixing mechanism is arranged in the tank body.

[0008] The purification mechanism includes a primary filtration membrane and an ultrafiltration membrane arranged in sequence in the sedimentation box, and a first motor fixedly connected to one end of the sedimentation box. The output shaft of the first motor passes through the sedimentation box and is fixedly connected to a round rod. The end of the round rod away from the first motor passes through the ultrafiltration membrane and the primary filtration membrane in sequence. Two first scrapers are fixedly connected to the surface of the round rod, a first spring is fixedly connected in the first scraper, and the other end of the first spring is fixedly connected to the second scraper. A brush plate used in conjunction with the first scraper and the second scraper is provided on the surface of the round rod. Two mounting plates are provided in the sedimentation box, and a sealing plate is provided in the mounting plate.

[0009] In one embodiment, the purification mechanism also includes a cylinder body fixedly connected to the top of the sealing plate, one end of the cylinder body is fixedly connected to a second spring, the other end of the second spring is fixedly connected to a piston rod, the other end of the piston rod passes through the cylinder body and is fixedly connected to a trigger plate, and the bottom end of the sealing plate is provided with a cavity connected to the cylinder body, and an expansion ring is provided at the opening of the cavity.

[0010] In one embodiment, the mixing mechanism includes a second motor and a suspension plate fixedly connected to the top of the tank body, the output shaft of the second motor passes through the tank body and is fixedly connected to a vertical rod, the bottom end of the vertical rod is fixedly connected to a plurality of bottom scrapers, the top of the bottom scraper is fixedly connected to a side scraper, the surface of the vertical rod and the bottom of the suspension plate are hinged with stirring rods, and the other ends of the two stirring rods are hinged to a connecting seat.

[0011] In one embodiment, the other end of the sedimentation tank is connected to a drain pipe, one end of the drain pipe is provided with a solenoid valve, and the other end of the drain pipe passes through the sedimentation tank and is provided with an isolation net.

[0012] In one embodiment, a slider is slidably connected to the top of the blocking plate, and the slider is fixedly connected to the trigger plate.

[0013] In one embodiment, a contact surface is formed on one side of the top of the trigger plate, and a protrusion is formed on the other side of the top of the trigger plate. A curved surface is formed on one side of the top of the second scraper to cooperate with the contact surface, and a hook is formed on the other side of the top of the second scraper to cooperate with the protrusion.

[0014] In one embodiment, a material discharge channel is formed between the mounting plate and the sedimentation box, and a collecting box for use with the material discharge channel is provided at the bottom end of the sedimentation box.

[0015] In one embodiment, the side scraper is fixedly connected to a limit rod on one side away from the inner wall of the tank body, and two sliding sleeves are slidably connected to the surface of the limit rod, and the upper sliding sleeve is fixedly connected to the suspension plate.

[0016] In one embodiment, a telescopic rod is provided on the surface of the lower sliding sleeve, and the other end of the telescopic rod is connected to the connecting seat.

[0017] In one embodiment, the telescopic rod includes a first connecting rod, one end of which is fixedly connected to the sliding sleeve below, the other end of which is plugged with a second connecting rod, and the other end of which is fixedly connected to a connecting seat.

[0018] In the above-mentioned purification mechanism, the mutual cooperation of the primary filtration membrane and the ultrafiltration membrane is utilized to carry out rapid graded sedimentation separation of the silica particles in the mixed solution in turn. The silica particles will adhere to the surface of the primary filtration membrane and the ultrafiltration membrane according to the action of the liquid flow direction. When a certain amount of silica particles are separated, the sedimentation separation performance will decrease, and the liquid level in the sedimentation box will increase. The silica particles can be cleaned and discharged in time to separate the silica particles. This method can reduce the time of traditional sedimentation, quickly complete the graded sedimentation separation of silica particles, and improve the efficiency of silica preparation. The synchronous rotation of two brush plates, the first scraper and the second scraper is utilized to first perform reverse sweeping when scraping off the silica particles on the primary filtration membrane and the ultrafiltration membrane, thereby improving the efficiency of silica preparation. High scraping and separation effect, preventing silica particles from entering the filter pores of the primary filtration membrane and ultrafiltration membrane, and the discharge channel is in an open state during rotation, so the scraped impurities can be directly separated. Affected by the shape, the second scraper will automatically retract and retract, and normal cleaning will not be affected by the trigger plate. At the same time, it can ensure that the trigger plate is in a predetermined position, the discharge channel is in a stable open state, and the separation effect is better. When it is reversed, it indicates that it is in a sedimentation purification state. By utilizing the shape of the contact part of the second scraper and the trigger plate, the sealing plate is in a perfect sealing state for the discharge channel, and the gas will be transported into the cavity. By utilizing the expansion of the expansion ring, the sealing plate and the mounting plate are completely sealed, ensuring that there will be no solution leakage during sedimentation purification.

[0019] 2. The mutual cooperation between the suspension plate and the multiple sets of stirring rods in the above-mentioned mixing mechanism can enable the stirring components to automatically adjust during mixing, change the established stirring path, and improve the mixing effect of the mixed solution. The mutual cooperation between the bottom scraper and the side scraper can scrape the inner wall of the tank to avoid residue and further improve the mixing effect. At the same time, the mutual cooperation between the limit rod and the two sliding sleeves can increase the stability of the multiple sets of stirring rods and the suspension plate during deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is a cross-sectional view of the present invention;

[0023] Figure 3 It is a partial structural schematic diagram of the sedimentation box of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the purification mechanism of the present invention;

[0025] Figure 5 This is a schematic diagram of the connection between the round rod, the brush plate, the first scraper and the second scraper of the present invention;

[0026] Figure 6 An exploded view of the trigger plate and mounting plate of the present invention;

[0027] Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle;

[0028] Figure 8 It is a structural schematic diagram of the mixing mechanism of the present invention;

[0029] Figure 9 It is an exploded view of the mixing mechanism of the present invention.

[0030] Reference numerals:

[0031] 100, sedimentation tank; 110, drainage pipe; 120, solenoid valve; 130, isolation net; 200, tank body; 300, water pump; 400, controller; 500, liquid level sensor; 600, purification mechanism; 610, ultrafiltration membrane; 611, primary filtration membrane; 612, first motor; 613, round rod; 614, brush plate; 615, first scraper; 616, first spring; 617, second scraper; 620, mounting plate; 621, blocking plate; 6211, cavity; 6212, expansion ring; 622, trigger plate; 6221, slider; 623, cylinder; 624, second spring; 625, piston rod; 700, mixing mechanism; 710, second motor; 711, vertical rod; 712, suspension plate; 713, stirring rod; 714, connecting seat; 715, bottom scraper; 716, side scraper; 717, limit rod; 718, sliding sleeve; 719, telescopic rod; 800, collection box. DETAILED DESCRIPTION

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings 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 technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0033] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of the present invention are for illustrative purposes only and do not represent the only implementation method.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0035] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are in contact indirectly through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] Unless otherwise defined, all technical and scientific terms used in the present description have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used in this description are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used in this description includes any and all combinations of one or more of the associated listed items.

[0037] The following combination Figures 1-9 The invention describes a nano-scale silica rapid precipitation and separation device.

[0038] In one embodiment, a nano-scale silica rapid precipitation and separation device comprises:

[0039] Sedimentation box 100, tank body 200, water pump 300 and controller 400. The tank body 200 is arranged at the top of the sedimentation box 100 and is connected to the sedimentation box 100. The water pump 300 is connected to the sedimentation box 100. The controller 400 is arranged at the top of the sedimentation box 100. The inner top wall of the sedimentation box 100 is provided with a liquid level sensor 500 used in conjunction with the controller 400. The tank body 200 is provided with a mixing mechanism 700.

[0040] The purification mechanism 600 includes a primary filtration membrane 611 and an ultrafiltration membrane 610 which are sequentially arranged in the sedimentation box 100, and a first motor 612 fixedly connected to one end of the sedimentation box 100. The output shaft of the first motor 612 passes through the sedimentation box 100 and is fixedly connected to a round rod 613. The end of the round rod 613 away from the first motor 612 passes through the ultrafiltration membrane 610 and the primary filtration membrane 611 in sequence. Two first scrapers 615 are fixedly connected to the surface of the round rod 613. A first spring 616 is fixedly connected to the first scraper 615. The other end of the first spring 616 is fixedly connected to the second scraper 617. A brush plate 614 used in conjunction with the first scraper 615 and the second scraper 617 is provided on the surface of the round rod 613. Two mounting plates 620 are provided in the sedimentation box 100, and a sealing plate 621 is provided in the mounting plate 620. A valve is provided at the connection point between the tank body 200 and the sedimentation box 100 , which can be used in conjunction with the controller 400 .

[0041] like Figure 1 、 Figure 2 and Figure 3 As shown, the other end of the sedimentation box 100 is connected to a drain pipe 110 , one end of the drain pipe 110 is provided with a solenoid valve 120 , and the other end of the drain pipe 110 passes through the sedimentation box 100 and is provided with an isolation net 130 .

[0042] In this embodiment, the mixed solution in the sedimentation tank 100 can be discharged, and the silica particles can be separated using the isolation net 130 to ensure that the silica particles can be better separated during the later separation. At the same time, the discharged mixed solution can also be added back to the sedimentation tank 100 or the tank body 200, which can be freely decided according to the situation.

[0043] like Figure 2 、 Figure 8 and Figure 9As shown, the mixing mechanism 700 includes a second motor 710 and a suspension plate 712 fixedly connected to the top of the tank body 200. The output shaft of the second motor 710 passes through the tank body 200 and is fixedly connected to a vertical rod 711. The bottom end of the vertical rod 711 is fixedly connected to a plurality of bottom scrapers 715. The top of the bottom scraper 715 is fixedly connected to a side scraper 716. The surface of the vertical rod 711 and the bottom of the suspension plate 712 are both hinged with stirring rods 713, and the other ends of the two stirring rods 713 are hinged with a connecting seat 714.

[0044] The side scraper 716 is fixedly connected to a limit rod 717 on the side away from the inner wall of the tank body 200. Two sliding sleeves 718 are slidably connected to the surface of the limit rod 717. The upper sliding sleeve 718 is fixedly connected to the suspension plate 712. A telescopic rod 719 is provided on the surface of the lower sliding sleeve 718, and the other end of the telescopic rod 719 is connected to the connecting seat 714. When the suspension plate 712 and the multiple sets of stirring rods 713 are deformed, the suspension plate 712 will drive the upper sliding sleeve 718 to slide on the limit rod 717, and the connecting seat 714 will drive the lower sliding sleeve 718 to slide on the limit rod 717 at the same time, ensuring the adjustment trajectory. At the same time, the mutual cooperation between the limit rod 717 and the two sliding sleeves 718 can increase the stability of the multiple sets of stirring rods 713 and the suspension plate 712 during deformation.

[0045] The telescopic rod 719 includes a first connecting rod, one end of which is fixedly connected to the lower sliding sleeve 718. The other end of the first connecting rod is connected to the second connecting rod, and the other end of the second connecting rod is fixedly connected to the connecting base 714. The telescopic rod 719 can self-adjust according to the change in the distance between the connecting base 714 and the lower sliding sleeve 718 during adjustment, ensuring that the limiting function is not affected by the change in the distance between them.

[0046] In this embodiment, when the solution in the tank body 200 is mixed, the second motor 710 is started, and the second motor 710 will rotate through the vertical rod 711 to drive multiple stirring rods 713 to rotate to mix the mixed solution in the tank body 200. At the same time, the vertical rod 711 will synchronously drive the bottom scraper 715 and the side scraper 716 to rotate synchronously to perform rotation and scraping operations. During the mixing process, the suspension plate 712 will float on the surface of the mixed solution in the tank body 200. When the liquid level changes, the suspension plate 712 will self-adjust following the liquid level. The suspension plate 712 will pull the stirring rod 713 to achieve an angle between the two stirring rods 713, thereby achieving adaptive changes in the stirring components during the mixing process, enabling the stirring components to automatically adjust during mixing, change the established stirring path, and improve the mixing effect of the mixed solution.

[0047] like Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7As shown, the purification mechanism 600 also includes a cylinder body 623 fixedly connected to the top of the sealing plate 621, one end of the cylinder body 623 is fixedly connected to the second spring 624, the other end of the second spring 624 is fixedly connected to the piston rod 625, the other end of the piston rod 625 passes through the cylinder body 623 and is fixedly connected to the trigger plate 622, and the bottom end of the sealing plate 621 is provided with a cavity 6211 connected to the cylinder body 623, and an expansion ring 6212 is provided at the opening of the cavity 6211.

[0048] The top of the blocking plate 621 is slidably connected to a slider 6221, which is fixedly connected to the trigger plate 622. When the piston rod 625 moves, the slider 6221 slides on the blocking plate 621, increasing the stability of the movement and preventing the vehicle from deviating from the track.

[0049] A contact surface is formed on one side of the top of the trigger plate 622, and a protrusion is formed on the other side of the top of the trigger plate 622. A curved surface is formed on one side of the top of the second scraper 617 to cooperate with the contact surface, and a hook is formed on the other side of the top of the second scraper 617 to cooperate with the protrusion. During sedimentation purification, the hook and the protrusion cooperate to achieve a stable seal between the blocking plate 621 and the mounting plate 620. The contact surface and the curved surface cooperate with the telescopic second scraper 617 to ensure that the discharge channel remains stable and open, achieving a better separation effect. During scraping and separation, gas is transported into the cavity 6211, and the expansion of the expansion ring 6212 achieves a complete seal between the blocking plate 621 and the mounting plate 620, ensuring that solution leakage does not occur during sedimentation purification.

[0050] In this embodiment, the first motor 612 is rotated, and the first scraper 615 and the second scraper 617 are used to scrape off the silica particles on the surface of the primary filter membrane 611 and the ultrafiltration membrane 610. At the same time, during the rotation, the second scraper 617 will move the blocking plate 621 to the edge position. At this time, the discharge channel is in an open state, and the silica particles will fall from the discharge channel into the collection box 800, completing the cleaning of the primary filter membrane 611 and the ultrafiltration membrane 610, and completing the collection of silica particles at the same time. This is a rapid precipitation and separation state of silica. When the purification mechanism 600 is in the separation and cleaning state, , start the first motor 612 to reverse, and use the second scraper 617 to complete the sealing of the discharge channel by the sealing plate 621. At the same time, after moving to the final position, the second scraper 617 will continue to move, and the trigger plate 622 will drive the piston rod 625 to move, squeezing the gas in the cylinder 623. The gas enters the cavity 6211, and the gas squeezes the expansion ring 6212. The strip-shaped expansion ring 6212 expands and comes into close contact with the mounting plate 620, thereby achieving complete sealing between the mounting plate 620 and the sealing plate 621, ensuring that the discharge channel will not leak when the device is normally purified.

[0051] like Figure 1 、 Figure 2 and Figure 4 As shown, a material discharge channel is formed between the mounting plate 620 and the settling box 100. A collection box 800 is provided at the bottom end of the settling box 100 for use with the material discharge channel. This allows for the collection of silica particles falling from the material discharge channel. If classification is required, two collection boxes 800 can be provided for direct collection and classification. This can be freely selected based on subsequent production requirements.

[0052] Working principle: first complete the mixing of the solution, add the raw materials into the tank body 200, start the second motor 710, the second motor 710 will rotate through the vertical rod 711 to drive multiple stirring rods 713 to rotate to mix the mixed solution in the tank body 200, and at the same time the vertical rod 711 will synchronously drive the bottom scraper 715 and the side scraper 716 to rotate synchronously to perform rotation and scraping operations. During the mixing process, the suspension plate 712 will float on the surface of the mixed solution in the tank body 200. When the liquid level changes, the suspension plate 712 will self-adjust along with the liquid level. The suspension plate 712 will pull the stirring rod 713 to achieve the angle between the two stirring rods 713, thereby achieving adaptive changes in the stirring components during the mixing process, and the mixed mixed solution will be transported to the sedimentation box 100, and the water pump 300 will be started. The mixed solution will be processed by the primary filtration membrane 611 and the ultrafiltration membrane 610 in turn, and the silica mixture particles will remain on the primary filtration membrane 61 1 and the surface of the ultrafiltration membrane 610, the liquid will be discharged from the water pump 300, the power drawn by the water pump 300 is constant, when the efficiency of the primary filtration membrane 611 and the ultrafiltration membrane 610 decreases, the liquid level in the sedimentation tank 100 will become higher, and when it reaches the preset cleaning position, the liquid level sensor 500 will transmit a signal to the controller 400, and the controller 400 will close the valve and open the solenoid valve 120 at the same time to discharge the remaining solution in the sedimentation tank 100. After the solution is emptied, the first solenoid valve 120 is used to open the solenoid valve 120. The machine 612 rotates, and the first scraper 615 and the second scraper 617 cooperate to scrape off the silica particles on the surface of the primary filtration membrane 611 and the ultrafiltration membrane 610. At the same time, during rotation, the second scraper 617 will move the blocking plate 621 to the outermost position. At this time, the discharge channel is in an open state, and the silica particles will fall from the discharge channel into the collection box 800, completing the cleaning of the primary filtration membrane 611 and the ultrafiltration membrane 610, and completing the collection of silica particles.

[0053] It should be noted that the solenoid valve 120, water pump 300, controller 400, liquid level sensor 500, ultrafiltration membrane 610, primary filtration membrane 611, first motor 612, cylinder body 623, piston rod 625 and second motor 710 in the above description are all relatively mature devices in existing technology applications. The specific models can be selected according to actual needs. At the same time, the solenoid valve 120, water pump 300, controller 400, liquid level sensor 500, first motor 612 and second motor 710 can be powered by a built-in power supply or by AC power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0054] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The above-described embodiments merely illustrate several embodiments of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of the present invention. Therefore, the scope of the present invention shall be determined by the appended claims.

Claims

1. A nano-scale silicon dioxide rapid precipitation and separation device, characterized in that: include: A sedimentation box (100), a tank body (200), a water pump (300), and a controller (400), wherein the tank body (200) is arranged at the top of the sedimentation box (100) and is in communication with the sedimentation box (100), the water pump (300) is in communication with the sedimentation box (100), the controller (400) is arranged at the top of the sedimentation box (100), a liquid level sensor (500) for use with the controller (400) is provided on the inner top wall of the sedimentation box (100), and a mixing mechanism (700) is provided in the tank body (200); The purification mechanism (600) comprises a primary filtration membrane (611) and an ultrafiltration membrane (610) sequentially arranged in a sedimentation box (100), a first motor (612) fixedly connected to one end of the sedimentation box (100), an output shaft of the first motor (612) passing through the sedimentation box (100) and fixedly connected to a round rod (613), an end of the round rod (613) away from the first motor (612) passing through the ultrafiltration membrane (610) and the primary filtration membrane (611) in sequence, and the round rod (613) ) is fixedly connected to the surface of the rod (613), a first scraper (615) is fixedly connected to the inside of the first scraper (615), and a second scraper (617) is fixedly connected to the other end of the first spring (616); a brush plate (614) used in conjunction with the first scraper (615) and the second scraper (617) is provided on the surface of the round rod (613); two mounting plates (620) are provided in the sedimentation box (100), and a blocking plate (621) is provided in the mounting plate (620); The purification mechanism (600) further comprises a cylinder (623) fixedly connected to the top of the blocking plate (621); one end of the cylinder (623) is fixedly connected to a second spring (624); the other end of the second spring (624) is fixedly connected to a piston rod (625); the other end of the piston rod (625) passes through the cylinder (623) and is fixedly connected to a trigger plate (622); the bottom end of the blocking plate (621) is provided with a cavity (6211) in communication with the cylinder (623); an expansion ring (6212) is provided at the opening of the cavity (6211); One side of the top end of the trigger plate (622) forms a contact surface, the other side of the top end of the trigger plate (622) is convex to form a protrusion, one side of the top end of the second scraper (617) forms an arc surface used in conjunction with the contact surface, and the other side of the top end of the second scraper (617) forms a hook used in conjunction with the protrusion; A material discharge channel is formed between the mounting plate (620) and the sedimentation box (100), and a collecting box (800) for use in conjunction with the material discharge channel is provided at the bottom end of the sedimentation box (100).

2. The nano-scale silicon dioxide rapid precipitation and separation device according to claim 1, characterized in that: The mixing mechanism (700) comprises a second motor (710) fixedly connected to the top of the tank body (200) and a suspension plate (712); the output shaft of the second motor (710) passes through the tank body (200) and is fixedly connected to a vertical rod (711); the bottom end of the vertical rod (711) is fixedly connected to a plurality of bottom scrapers (715); the top end of the bottom scraper (715) is fixedly connected to a side scraper (716); the surface of the vertical rod (711) and the bottom of the suspension plate (712) are both hingedly connected to stirring rods (713); the other ends of the two stirring rods (713) are hingedly connected to a connecting seat (714).

3. The nano-scale silicon dioxide rapid precipitation and separation device according to claim 1, characterized in that: The other end of the sedimentation tank (100) is connected to a drainage pipe (110), one end of the drainage pipe (110) is provided with a solenoid valve (120), and the other end of the drainage pipe (110) passes through the sedimentation tank (100) and is provided with an isolation net (130).

4. The nano-scale silicon dioxide rapid precipitation and separation device according to claim 1, characterized in that: The top end of the blocking plate (621) is slidably connected to a slider (6221), and the slider (6221) is fixedly connected to the trigger plate (622).

5. The nano-scale silicon dioxide rapid precipitation and separation device according to claim 2, characterized in that: The side scraper (716) is fixedly connected to a limiting rod (717) on one side away from the inner wall of the tank body (200). Two sliding sleeves (718) are slidably connected to the surface of the limiting rod (717). The upper sliding sleeve (718) is fixedly connected to the suspension plate (712).

6. The nano-scale silicon dioxide rapid precipitation and separation device according to claim 5, characterized in that: A telescopic rod (719) is provided on the surface of the lower sliding sleeve (718), and the other end of the telescopic rod (719) is connected to the connecting seat (714).

7. The nano-scale silicon dioxide rapid precipitation and separation device according to claim 6, characterized in that: The telescopic rod (719) includes a first connecting rod, one end of which is fixedly connected to the sliding sleeve (718) below, and the other end of which is plugged with a second connecting rod, and the other end of which is fixedly connected to the connecting seat (714).

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