A dilution device for silica sol

Abstract

The utility model discloses a kind of dilution devices for silica sol, it is related to the field of silica sol processing equipment, device includes dilution bucket and silica sol store, dilution bucket side wall is equipped with water inlet pipe, glue inlet pipe, bottom is equipped with discharge hopper, top is equipped with air pump, lifting mechanism and drive mechanism;Silica sol store is connected with lifting mechanism, bottom has glue outlet;Dilution bucket top adapter tubular straight pipe, straight pipe passes through silica sol store and is connected with conical tip upward cone, cone is equipped with air cavity and multiple groups of air passage, air passage is slidably connected with drainage rod with sealing plug, drainage rod bottom end is connected with mixing rod.Working, lifting mechanism adjusts silica sol store height to control glue output, drive mechanism is with straight pipe, cone and drainage rod rotation, air pump controls drainage rod telescopic change discharging position, mixing rod does rotation and telescopic compound motion.The device realizes dynamic dispersion discharging and gentle stirring, avoids accumulation and colloid damage, easy to operate, adapts industrialization demand.

Description

Technical Field

[0001] This utility model relates to the field of silica sol processing equipment technology, and in particular to a dilution device for silica sol. Background Technology

[0002] Silica sol, as an important inorganic colloidal material, is widely used in coatings, ceramics, adhesives, and other fields. In practical applications, silica sol often needs to be diluted to a specific concentration according to specific requirements. The dilution process must ensure that the silica sol is uniformly dispersed in water to avoid problems such as agglomeration and uneven local concentration, otherwise it will affect the quality of subsequent products.

[0003] Existing silica sol dilution devices mostly employ a fixed feeding point combined with stirring. A fixed feeding point easily leads to localized accumulation of silica sol in water, requiring high-speed stirring to achieve uniform mixing. However, high-speed stirring not only generates a large number of bubbles but may also damage the colloidal stability of the silica sol. While some devices attempt to adjust the feeding position, their complex structures and cumbersome operations make it difficult to achieve dynamic and stable feeding position adjustment and gentle mixing, thus failing to meet the requirements for efficient and gentle dilution. Therefore, a device is needed that can achieve uniform dispersion and gentle mixing dilution of silica sol. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes a dilution device for silica sol.

[0005] This utility model proposes a dilution device for silica sol, including a dilution tank and a silica sol container;

[0006] The dilution tank is equipped with a water inlet pipe and a glue inlet pipe on its side wall. The water inlet pipe is used to introduce dilution water, and the glue inlet pipe is used to transport silica sol. The bottom of the dilution tank is equipped with a discharge hopper, and the top of the dilution tank is equipped with an air pump, a lifting mechanism, and a drive mechanism.

[0007] The silica sol tank is located in the upper part of the inner cavity of the dilution tank and is connected to the lifting mechanism. The lifting mechanism drives the silica sol tank to rise and fall. The glue inlet pipe is connected to the inner cavity of the silica sol tank through a flexible tube. The top of the silica sol tank has a first through hole, and the bottom has a glue outlet coaxially arranged with the first through hole. The top of the dilution tank is vertically rotatably connected to a straight pipe. The top of the straight pipe extends to the outside of the dilution tank and is connected to an air pump through an air pipe. The bottom of the straight pipe passes through the first through hole and the glue outlet in sequence, and is connected to a cone with the tip pointing upwards. The driving mechanism is used to drive the straight pipe to rotate.

[0008] An air chamber is formed in the upper inner part of the cone. The inner cavity of the straight tube is connected to the air chamber. Multiple sets of air channels are formed between the bottom surface of the cone and the air chamber, evenly distributed along the circumference of the cone. The inclination angle of each set of air channels is consistent with the inclination angle of the generatrix of the cone. A guide rod is slidably connected in each set of air channels. A sealing plug that seals with the air channel is fixedly connected to the end of each set of guide rods near the air chamber. A mixing rod is vertically fixedly connected to the bottom end of each set of guide rods.

[0009] Preferably, the lifting mechanism includes multiple sets of telescopic rods and a second motor. The multiple sets of telescopic rods are vertically arranged between the top of the inner cavity of the dilution tank and the top of the silica sol tank. The second motor is fixedly installed on the top of the dilution tank. A lead screw is fixedly connected to the drive shaft of the second motor. An internally threaded sleeve is vertically fixedly installed on the top of the silica sol tank. The lead screw and the internally threaded sleeve are threadedly engaged.

[0010] Preferably, the diameter of the dispensing port is larger than the diameter of the straight tube. When the silica sol tank descends, the tip of the cone is inserted into the dispensing port and a seal is achieved. When the silica sol tank rises, a gap is formed between the dispensing port and the tip of the cone to adjust the dispensing amount.

[0011] Preferably, the drive mechanism includes a first motor, the transmission shaft of the first motor is fixedly connected to a first gear, and the top outer wall of the straight tube is fixedly connected to a second gear that meshes with the first gear.

[0012] Preferably, the discharge hopper is equipped with a control valve for controlling the discharge.

[0013] Preferably, the outer surface of the guide rod is provided with a guide groove along its length.

[0014] Preferably, the top of the straight pipe is connected to the air pipe connected to the air pump via a rotary joint. The fixed end of the rotary joint is sealed and connected to the air pipe, and the rotating end of the rotary joint is sealed and fixed to the top of the straight pipe and rotates synchronously with the straight pipe. The rotary joint design between the straight pipe and the air pipe avoids the air pipe from getting tangled when the straight pipe rotates, ensuring stable air pressure transmission and reliable extension and retraction of the drainage rod.

[0015] The dilution device for silica sol proposed in this invention has the following beneficial effects:

[0016] This device uses an air pump to control the periodic extension and retraction of the guide rod, combined with the rotation of the guide rod driven by the straight pipe, to achieve dynamic dispersion and feeding of silica sol, effectively avoiding local accumulation and ensuring that the silica sol and water are initially mixed evenly;

[0017] As the mixing rod rotates with the straight tube, it moves up and down with the guide rod, forming a compound stirring motion. This achieves uniform mixing without the need for high-speed stirring, avoiding the generation of a large number of bubbles and the destruction of the stability of the silica sol colloid, thus ensuring the quality of dilution.

[0018] The lifting mechanism drives the silica sol tank to rise and fall. The dispensing volume is controlled by adjusting the gap between the dispensing port and the tip of the cone. The operation is flexible and can adapt to different dilution concentrations and dilution speeds.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the silica sol chamber and cone structure in this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Dilution tank; 1001. Water inlet pipe; 1002. Glue inlet pipe; 1003. Discharge hopper; 1004. Flexible hose;

[0025] 101. First motor; 102. First gear; 103. Telescopic rod; 104. Second motor; 105. Lead screw; 106. Internal threaded sleeve;

[0026] 2. Silica sol container; 201. Dispensing port;

[0027] 3. Cone; 3001. Air cavity; 3002. Airway;

[0028] 301. Straight pipe; 302. Second gear; 303. Air pipe; 304. Air pump;

[0029] 4. Drainage rod; 401. Mixing rod; 402. Sealing plug. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] like Figures 1-2 The apparatus shown is for diluting silica sol, including a dilution tank 1 and a silica sol container 2;

[0032] The dilution tank 1 is equipped with a water inlet pipe 1001 and a glue inlet pipe 1002 on its side wall. The water inlet pipe 1001 is used to introduce dilution water, and the glue inlet pipe 1002 is used to transport silica sol. The bottom of the dilution tank 1 is equipped with a discharge hopper 1003, and the top of the dilution tank 1 is equipped with an air pump 304, a lifting mechanism, and a drive mechanism.

[0033] The silica sol tank 2 is located in the upper part of the inner cavity of the dilution tank 1 and is connected to the lifting mechanism. The lifting mechanism drives the silica sol tank 2 to rise and fall. The glue inlet pipe 1002 is connected to the inner cavity of the silica sol tank 2 through the hose 1004. The top of the silica sol tank 2 is provided with a first through hole, and the bottom is provided with a glue outlet 201 coaxially arranged with the first through hole. The top of the dilution tank 1 is vertically rotatably connected to a straight pipe 301. The top of the straight pipe 301 extends to the outside of the dilution tank 1 and is connected to the air pump 304 through the air pipe 303. The bottom of the straight pipe 301 passes through the first through hole and the glue outlet 201 in sequence, and is connected to a cone 3 with the cone tip pointing upward. The driving mechanism is used to drive the straight pipe 301 to rotate.

[0034] An air chamber 3001 is provided in the upper part of the cone 3. The inner cavity of the straight tube 301 is connected to the air chamber 3001. Multiple sets of air passages 3002 are evenly distributed along the circumference of the cone 3 between the bottom surface of the cone 3 and the air chamber 3001. The inclination angle of each set of air passages 3002 is consistent with the inclination angle of the generatrix of the cone 3. A guide rod 4 is slidably connected in each set of air passages 3002. A sealing plug 402 that seals with the air passage 3002 is fixedly connected to one end of each set of guide rods 4 near the air chamber 3001. A mixing rod 401 is vertically fixedly connected to the bottom end of each set of guide rods 4.

[0035] Furthermore, the lifting mechanism includes multiple sets of telescopic rods 103 and a second motor 104. The multiple sets of telescopic rods 103 are vertically arranged between the top of the inner cavity of the dilution tank 1 and the top of the silica sol tank 2. The second motor 104 is fixedly installed on the top of the dilution tank 1. The drive shaft of the second motor 104 is fixedly connected to a lead screw 105. An internally threaded sleeve 106 is vertically fixedly installed on the top of the silica sol tank 2. The lead screw 105 and the internally threaded sleeve 106 are threadedly engaged.

[0036] Furthermore, the diameter of the dispensing port 201 is larger than the diameter of the straight tube 301. When the silica sol tank 2 descends, the tip of the cone 3 is inserted into the dispensing port 201 and a seal is achieved. When the silica sol tank 2 rises, the dispensing port 201 and the tip of the cone 3 form a gap to adjust the dispensing amount.

[0037] Furthermore, the drive mechanism includes a first motor 101, the transmission shaft of the first motor 101 is fixedly connected to a first gear 102, and the top outer wall of the straight tube 301 is fixedly connected to a second gear 302 that meshes with the first gear 102.

[0038] Furthermore, the discharge hopper 1003 is equipped with a control valve for controlling the discharge, which allows for flexible control of the timing and amount of the diluted silica sol mixture being discharged.

[0039] Furthermore, a guide groove is formed on the outer surface of the guide rod 4 along its length. The guide groove can guide the silica sol to flow stably along the guide rod 4, avoid the silica sol from flowing turbulently on the surface of the guide rod 4, and ensure smooth and concentrated material feeding.

[0040] Furthermore, the top of the straight pipe 301 is connected to the air pipe 303 connected to the air pump 304 via a rotary joint. The fixed end of the rotary joint is sealed and connected to the air pipe 303, and the rotating end of the rotary joint is sealed and fixed to the top of the straight pipe 301 and rotates synchronously with the straight pipe 301. This structure can prevent the air pipe 303 from getting tangled when the straight pipe 301 rotates, ensuring stable air pressure transmission.

[0041] In this embodiment, during operation:

[0042] A fixed amount of dilution water is introduced into the dilution tank 1 through the water inlet pipe 1001 on the side wall of the dilution tank 1, and the amount of water is determined according to the target dilution concentration. At the same time, the silica sol to be diluted is transported to the silica sol tank 2 through the glue inlet pipe 1002. The flexible hose 1004 between the glue inlet pipe 1002 and the silica sol tank 2 can accommodate the subsequent lifting and lowering movement of the silica sol tank 2.

[0043] The second motor 104 in the lifting mechanism is activated, driving the lead screw 105 to rotate. The lead screw 105 engages with the internal threaded sleeve 106 at the top of the silica sol tank 2, driving the silica sol tank 2 to rise and fall vertically. When the silica sol tank 2 descends, the tip of the cone 3 inserts into the outlet 201 at the bottom of the silica sol tank 2, sealing the outlet 201 and preventing premature flow of silica sol. When dispensing is required, the second motor 104 is reversed, causing the silica sol tank 2 to rise. A gap is formed between the outlet 201 and the tip of the cone 3. By adjusting the size of the gap, the dispensing amount of silica sol can be controlled to meet different dilution rate requirements.

[0044] The first motor 101 in the drive mechanism is started, which drives the first gear 102 to rotate. The first gear 102 meshes with the second gear 302 at the top of the straight tube 301, thereby driving the straight tube 301 to rotate around its own axis. The cone 3 at the bottom of the straight tube 301 rotates synchronously with the straight tube 301, and the guide rod 4 on the cone 3 and the mixing rod 401 at the bottom of the guide rod 4 also rotate accordingly. At the same time, the air pump 304 is started, and the air pump 304 supplies air into the straight tube 301 through the air pipe 303. The air enters the air chamber 3001 of the cone 3 through the inner cavity of the straight tube 301, and the air pressure in the air chamber 3001 increases, pushing the sealing plug 402 on the guide rod 4 to slide along the air passage 3002, and the guide rod 4 extends. When the air pump 304 draws air, a negative pressure is formed in the air chamber 3001, pulling the guide rod 4 back. By periodically pumping and releasing air using the air pump 304, the guide rod 4 drives the mixing rod 401 to continuously change its vertical position, thereby dynamically adjusting the silica sol feeding position and preventing localized accumulation of silica sol in the water. The rotating mixing rod 401 gently stirs the water and silica sol in the dilution tank 1, and together with the dynamic feeding, ensures that the silica sol is evenly dispersed in the water, achieving gentle and efficient dilution without compromising the colloidal stability of the silica sol.

[0045] Once the silica sol is diluted to the target concentration, the glue inlet, air pump 304, and drive mechanism are shut off, and the control valve on the discharge hopper 1003 is opened. The diluted silica sol mixture is then discharged through the discharge hopper 1003, completing the dilution process.

[0046] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0047] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0050] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dilution apparatus for silica sol, characterized in that, Includes a dilution tank (1) and a silica sol container (2); The dilution tank (1) is equipped with a water inlet pipe (1001) and a glue inlet pipe (1002) on its side wall. The water inlet pipe (1001) is used to introduce dilution water, and the glue inlet pipe (1002) is used to transport silica sol. The bottom of the dilution tank (1) is equipped with a discharge hopper (1003), and the top of the dilution tank (1) is equipped with an air pump (304), a lifting mechanism, and a drive mechanism. The silica sol tank (2) is located in the upper part of the inner cavity of the dilution tank (1) and is connected to the lifting mechanism. The lifting mechanism drives the silica sol tank (2) to rise and fall. The glue inlet pipe (1002) is connected to the inner cavity of the silica sol tank (2) through the hose (1004). The top of the silica sol tank (2) is provided with a first through hole, and the bottom of the tank is provided with a glue outlet (201) coaxially arranged with the first through hole. The top of the dilution tank (1) is vertically rotatably connected to a straight pipe (301). The top of the straight pipe (301) extends to the outside of the dilution tank (1) and is connected to the air pump (304) through the air pipe (303). The bottom of the straight pipe (301) passes through the first through hole and the glue outlet (201) in sequence, and is connected to a cone (3) with the cone tip pointing upward. The driving mechanism is used to drive the straight pipe (301) to rotate. An air chamber (3001) is provided in the upper part of the cone (3). The inner cavity of the straight tube (301) is connected to the air chamber (3001). Multiple sets of air passages (3002) are evenly distributed along the circumference of the cone (3) between the bottom surface of the cone (3) and the air chamber (3001). The inclination angle of each set of air passages (3002) is consistent with the inclination angle of the generatrix of the cone (3). A guide rod (4) is slidably connected in each set of air passages (3002). A sealing plug (402) that seals with the air passage (3002) is fixedly connected to one end of each set of guide rods (4) near the air chamber (3001). A mixing rod (401) is vertically fixedly connected to the bottom end of each set of guide rods (4).

2. The dilution apparatus for silica sol according to claim 1, characterized in that, The lifting mechanism includes multiple sets of telescopic rods (103) and a second motor (104). The multiple sets of telescopic rods (103) are vertically arranged between the top of the inner cavity of the dilution tank (1) and the top of the silica sol tank (2). The second motor (104) is fixedly installed on the top of the dilution tank (1). The drive shaft of the second motor (104) is fixedly connected to a lead screw (105). An internal threaded sleeve (106) is vertically fixedly installed on the top of the silica sol tank (2). The lead screw (105) and the internal threaded sleeve (106) are threadedly engaged.

3. The dilution apparatus for silica sol according to claim 1, characterized in that, The diameter of the outlet (201) is larger than the diameter of the straight tube (301). When the silica sol tank (2) descends, the tip of the cone (3) is inserted into the outlet (201) and sealed. When the silica sol tank (2) rises, the outlet (201) and the tip of the cone (3) form a gap to adjust the amount of adhesive dispensed.

4. The dilution apparatus for silica sol according to claim 1, characterized in that, The drive mechanism includes a first motor (101), the transmission shaft of the first motor (101) is fixedly connected to a first gear (102), and the top outer wall of the straight tube (301) is fixedly connected to a second gear (302) that meshes with the first gear (102).

5. The dilution apparatus for silica sol according to claim 1, characterized in that, The discharge hopper (1003) is equipped with a control valve for controlling the discharge.

6. The dilution apparatus for silica sol according to claim 1, characterized in that, The outer surface of the guide rod (4) is provided with a guide groove along its length.

7. The dilution apparatus for silica sol according to claim 1, characterized in that, The top of the straight pipe (301) is connected to the air pipe (303) of the air pump (304) by a rotary joint. The fixed end of the rotary joint is sealed and connected to the air pipe (303), and the rotating end of the rotary joint is sealed and fixed to the top of the straight pipe (301) and rotates synchronously with the straight pipe (301).

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