Precipitation reactor for producing silicon dioxide

Abstract

The utility model relates to the technical field of silicon dioxide production equipment, in particular to a precipitation reactor for producing silicon dioxide, which comprises a reaction barrel, a discharge pipe fixed on one side of the bottom of the reaction barrel, a valve arranged in the discharge pipe, and a filter mechanism comprising a filter plate positioned on the lower side of the discharge pipe, first baffles are arranged on the front and rear sides of the top of the filter plate. Liquid and sediments are led to the outside through the discharging pipe and the filtering mechanism to be separated and collected at the same time, the stirred liquid and sediments are separated through the inclined filtering plate, the sediments are prevented from being accumulated and left in the reaction barrel, the liquid separation effect is improved, and the output rate of the silicon dioxide sediments is increased; the air cylinder drives the filter plate to reciprocate on the top of the supporting frame, separation of liquid and sediment is accelerated, the sediment on the surface of the filter plate is scraped through the two scraping plates, the blocked sediment is removed in time, and the filtering effect is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of silicon dioxide production equipment, and in particular to a precipitation reactor for producing silicon dioxide. Background Technology

[0002] According to the patent document with publication number CN222076580U, the patent document describes a system where a lower connecting rod and a lower stirring blade are used. When the rotating rod rotates, it drives the rotating disk to stir and mix the material on the rotating disk. This avoids the situation where there is not enough material at the bottom of the lower shell, which would prevent the material from being stirred effectively. The scraping action of the scraper solves the problem of crystals adhering to the inner wall of the lower shell, which affects the uniform mixing. This allows the sedimentation reactor to fully mix and stir even when the volume is not full. The filter screen in the filter assembly separates the liquid and sediment inside the lower shell. The threaded connection between the front and rear connectors facilitates the cleaning of the filter screen.

[0003] The patent document states that when the filter screen separates the liquid from the sediment, the liquid flows out through the filter screen, while the sediment is blocked inside the shell by the filter screen. During the filtration process, the sediment at the filter screen becomes more and more dense, which in turn blocks the filter screen, preventing the remaining liquid from passing through, resulting in poor filtration effect. In addition, the density of the filtered sediment is too high to be poured out of the shell, and it is easy to accumulate in the gaps of the lower stirring blades, reducing the output of silica. Utility Model Content

[0004] The purpose of this invention is to provide a precipitation reactor for producing silica in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A precipitation reactor for producing silica includes a reaction tank, a discharge pipe fixed to one side of the bottom of the reaction tank, a valve installed inside the discharge pipe, and a filtration mechanism.

[0007] The filtration mechanism includes a filter plate located below the discharge pipe. The filter plate has a first baffle on both the front and rear sides of the top of the filter plate, a second baffle on one side of the top of the filter plate, and a support frame at the bottom of the filter plate. Scrapers for scraping off the sediment on the surface of the filter plate are fixed on the side of the two first baffles that are close to each other. A cylinder is fixedly installed on the front side of the filter plate, a liquid collection tank is located on the lower side of the filter plate, and a sediment collection tank is located on the other side of the bottom of the filter plate.

[0008] Preferably, a feed pipe is fixed to the other side of the top of the reaction tank, and support legs are fixed to both the front and rear sides of the bottom of the reaction tank, with the cylinder fixed to the support leg on the front side.

[0009] Preferably, a stirring shaft is rotatably connected inside the reaction vessel, and a motor is fixedly installed at the input end of the stirring shaft. The stirring shaft consists of four crossbars for stirring and two scraper rods for scraping off the raw materials adhering to the inner wall of the reaction vessel. The two scraper rods are fixed on both sides of the four crossbars respectively.

[0010] Preferably, two first baffles are fixed to the other side of the second baffle, and the bottom of the second baffle is fixedly connected to one side of the support frame.

[0011] Preferably, the scraper has a triangular cross-section, with one corner of the scraper contacting the upper surface of the filter plate, and a connecting plate fixed to the front side of the filter plate and fixedly connected to the telescopic end of the cylinder.

[0012] Preferably, the filter plate is inclined, with the highest point of the filter plate located above the liquid collection tank and the lowest point of the filter plate located above the sediment collection tank. Both the liquid collection tank and the sediment collection tank are fixed with handles on the sides that are far apart from each other.

[0013] The advantages compared to existing technologies are as follows:

[0014] 1. The liquid and precipitate are separated and collected simultaneously by the discharge pipe and the filtration mechanism. The stirred liquid and precipitate are separated by the inclined filter plate. The liquid falls into the liquid collection tank after passing through the filter plate, and the filtered precipitate flows to the other side of the filter plate and falls into the precipitate collection tank. This avoids the accumulation of precipitate in the reaction tank, improves the liquid separation effect, and increases the yield of silica precipitate.

[0015] 2. The filter plate is driven by a cylinder to move back and forth on the top of the support frame, which accelerates the separation of liquid and sediment. Two scrapers scrape the sediment on the surface of the filter plate to remove the clogging sediment in time and improve the filtration effect. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a precipitation reactor for producing silica according to the present invention;

[0018] Figure 2 This is a cross-sectional view of a precipitation reactor for producing silica according to the present invention;

[0019] Figure 3This is a schematic diagram of the filtration mechanism of a precipitation reactor for producing silica as described in this utility model;

[0020] Figure 4 This is a schematic diagram of the combined structure of the first and second baffles in a precipitation reactor for producing silica according to the present invention.

[0021] Figure 5 This is a schematic diagram of the support frame and filter plate assembly structure of a precipitation reactor for producing silica according to the present invention;

[0022] Figure 6 This is a schematic diagram of the combined structure of the first baffle and filter plate in a precipitation reactor for producing silica according to the present invention;

[0023] Figure 7 This is a schematic diagram of the stirring shaft structure of a precipitation reactor for producing silica, as described in this utility model.

[0024] The annotations in the attached figures are explained as follows:

[0025] 1. Reaction tank; 2. Stirring shaft; 3. Discharge pipe; 4. Valve; 5. Filtration mechanism; 501. Filter plate; 502. Support frame; 503. First baffle; 504. Second baffle; 505. Scraper; 506. Cylinder; 507. Liquid collection tank; 508. Sediment collection tank. Detailed Implementation

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] like Figures 1-7 As shown, a precipitation reactor for producing silica includes a reaction tank 1, a discharge pipe 3 fixed to one side of the bottom of the reaction tank 1, a valve 4 installed inside the discharge pipe 3, and a filtration mechanism 5.

[0029] In this embodiment: the filtration mechanism 5 includes a filter plate 501, which is located below the discharge pipe 3. First baffles 503 are provided on both the front and rear sides of the top of the filter plate 501, and a second baffle 504 is provided on one side of the top of the filter plate 501. A support frame 502 is provided at the bottom of the filter plate 501. The two first baffles 503 are fixed to the other side of the second baffle 504. The bottom of the second baffle 504 is fixedly connected to one side of the support frame 502. A scraper 505 for scraping away sediment from the surface of the filter plate 501 is fixed to the side of the two first baffles 503 that are close to each other. The scraper 505 has a triangular cross-section, and one corner of the scraper 505 contacts the upper surface of the filter plate 501. A cylinder 506 is fixedly provided on the front side of the filter plate 501, and a connecting plate fixedly connected to the telescopic end of the cylinder 506 is fixedly provided on the front side of the filter plate 501. A liquid collection tank 507 is provided on the lower side of the filter plate 501. A sediment collection tank 508 is provided on the other side of the bottom of 501. The filter plate 501 is inclined. The highest point of the filter plate 501 is located above the liquid collection tank 507, and the lowest point of the filter plate 501 is located above the sediment collection tank 508. Handles are fixed on the opposite sides of the liquid collection tank 507 and the sediment collection tank 508. The stirred liquid and sediment are separated by the inclined filter plate 501. The liquid falls into the liquid collection tank 507 after passing through the filter plate 501, and the filtered sediment flows along the filter plate 501 to the other side and falls into the sediment collection tank 508. The filter plate 501 is driven by the cylinder 506 to move back and forth on the top of the support frame 502 to accelerate the separation of liquid and sediment. Then, two scrapers 505 scrape the sediment on the surface of the filter plate 501. The liquid and sediment are limited by the first baffle 503 and two second baffles 504.

[0030] In this embodiment: a feed pipe is fixed to the other side of the top of the reaction tank 1, and support legs are fixed to both the front and rear sides of the bottom of the reaction tank 1. The cylinder 506 is fixed to the support leg on the front side. A stirring shaft 2 is rotatably connected inside the reaction tank 1. A motor is fixedly installed at the input end of the stirring shaft 2. The stirring shaft 2 consists of four crossbars for stirring and two scraper rods for scraping off the raw materials attached to the inner wall of the reaction tank 1. The two scraper rods are fixed to both sides of the four crossbars. The raw materials are fed into the reaction tank 1 through the feed pipe. The stirring shaft 2 is driven to rotate by the motor. The raw materials are stirred by the four crossbars of the stirring shaft 2, and then the raw materials undergo a precipitation reaction in the reaction tank 1. The raw materials attached to the inner wall of the reaction tank 1 are scraped off by the two scraper rods of the stirring shaft 2. The opening and closing of the discharge pipe 3 is controlled by the valve 4.

[0031] Working principle: Raw materials are fed into reaction tank 1 through the feed pipe. The motor is started to drive the stirring shaft 2 to rotate. The four crossbars of the stirring shaft 2 stir the raw materials, causing a precipitation reaction in the reaction tank 1. The two scrapers of the stirring shaft 2 scrape off the raw materials adhering to the inner wall of the reaction tank 1. After stirring is completed, valve 4 is opened, and the mixture of stirred liquid and precipitate flows continuously into one side of the upper surface of filter plate 501 through discharge pipe 3. The inclined filter plate 501 separates the stirred liquid and precipitate. The liquid then falls into liquid collection tank 507 through filter plate 501, while the filtered precipitate flows along filter plate 501 to the other side and falls into precipitate collection tank 508. During this process, cylinder 506 drives filter plate 501 to move back and forth on top of support frame 502. Centered on the symmetrical line of the two scrapers 505 distributed symmetrically on the front and rear sides, filter plate 501 is divided into front filter plate 501 and rear filter plate 501. The cylinder 506 pushes the connecting plate backward on the filter plate 501, which in turn moves the filter plate 501 backward, so that the front filter plate 501 is completely between the two scrapers 505. As the rear filter plate 501 moves out of the two scrapers 505, the rear scrapers 505 scrape off the sediment on the surface of the rear filter plate 501. The sediment continues to flow into the sediment collection tank 508 along the front filter plate 501. The cylinder 506 pulls the connecting plate forward, which in turn moves the filter plate 501 forward, so that the rear filter plate 501 is completely between the two scrapers 505. As the front filter plate 501 moves out of the two scrapers 505, the front scrapers 505 scrape off the sediment on the surface of the front filter plate 501. The sediment continues to flow into the sediment collection tank 508 along the front filter plate 501. This operation is repeated periodically until the liquid and sediment are completely separated.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A precipitation reactor for producing silicon dioxide, comprising a reaction barrel (1), one side of the bottom of the reaction barrel (1) is fixed with a discharge pipe (3), a valve (4) is arranged in the discharge pipe (3), characterized in that: Also include filter mechanism (5); The filter mechanism (5) includes a filter plate (501), the filter plate (501) is located in the lower side of the discharge pipe (3), the filter plate (501) top front and back sides are equipped with first baffle (503), the filter plate (501) top side is equipped with second baffle (504), the filter plate (501) bottom is equipped with support frame (502), two first baffle (503) are fixed on the side close to each other, and the scraper (505) for scraping the precipitate on the surface of the filter plate (501) is arranged, the filter plate (501) front side is fixedly provided with a cylinder (506), the filter plate (501) lower side is equipped with liquid collection tank (507), the bottom of the filter plate (501) is equipped with a precipitate collection tank (508).

2. The precipitation reactor for producing silicon dioxide according to claim 1, wherein: The other side of the top of the reaction bucket (1) is fixedly provided with a feeding pipe, and the bottom of the reaction bucket (1) is fixedly provided with support legs on the front and back sides.

3. The precipitation reactor for producing silica according to claim 1, wherein: The stirring shaft (2) is rotatably connected in the reaction bucket (1), the input end of the stirring shaft (2) is fixedly provided with a motor, and the stirring shaft (2) is composed of four horizontal rods for stirring and two scraper rods for scraping the raw materials adhered to the inner wall of the reaction bucket (1).

4. The precipitation reactor for producing silica according to claim 1, wherein: Two first baffles (503) are fixed on the other side of the second baffle (504), and the bottom of the second baffle (504) is fixedly connected with one side of the support frame (502).

5. The precipitation reactor for producing silica according to claim 1, wherein: The cross section of the scraper (505) is triangular, one corner of the scraper (505) contacts the upper surface of the filter plate (501), and the front side of the filter plate (501) is fixedly provided with a connecting plate fixedly connected with the telescopic end of the cylinder (506).

6. The precipitation reactor for producing silica according to claim 1, wherein: The filter plate (501) is inclined, the highest point of the filter plate (501) is located on the upper side of the liquid collection tank (507), the lowest point of the filter plate (501) is located on the upper side of the precipitate collection tank (508), and the handles are fixed on the sides away from each other of the liquid collection tank (507) and the precipitate collection tank (508).

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