Silica sol production cooling device

Abstract

The utility model discloses a silica sol production cooling device which comprises a kettle body, a top cover and a bottom cover, the top cover and the bottom cover are connected with a feeding pipe and a discharging pipe respectively, the bottom of one side of the kettle body and the top of the other side of the kettle body are connected with a water inlet pipe and a water outlet pipe respectively, an upper partition plate is installed between the kettle body and the top cover, and a lower partition plate is installed between the kettle body and the bottom cover. A plurality of vertical cooling material pipes penetrating up and down are uniformly mounted between the upper partition plate and the lower partition plate in the kettle body, a material distribution disc positioned above the cooling material pipes is mounted in the top cover, a plurality of layers of overflow plates are mounted between the upper partition plate and the lower partition plate in the kettle body, and the cooling material pipes are sleeved with the overflow plates. According to the utility model, the plurality of cooling material pipes with smaller diameters are arranged in the kettle body and are surrounded by cooling circulating water, so that the heat exchange efficiency of the silica sol and cooling water is improved, the cooling speed is increased, the temperature difference in the silica sol is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of silica sol equipment technology, specifically a silica sol production cooling device. Background Technology

[0002] The industrial production temperature for silica sol varies depending on the specific production stage and application scenario. During silica sol preparation, the reaction temperature is typically around 85℃. At this temperature, the hydrolysis reaction of elemental silicon can proceed effectively, generating silica sol with suitable properties. When concentrating silica sol, to prevent gelation, the operation is usually carried out at around 78℃. Temperature conditions are crucial to ensuring the performance and quality of silica sol; therefore, temperature control is of paramount importance during silica sol production.

[0003] In existing technologies, spiral coil cooling reactors are commonly used to cool silica sol. The silica sol is added into the cooling reactor, and cooling circulating water flows through the coils to cool the silica sol inside. Due to the large volume of the reactor and the large volume of the silica sol, while the diameter of the coils is small, the silica sol in the middle of the cooling reactor cools down more slowly than the silica sol near the side wall of the cooling reactor. This not only results in low cooling efficiency but also uneven cooling, which is not conducive to the efficient production of silica sol and needs to be improved. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a cooling device for silica sol production, which solves the problems of slow cooling speed and uneven temperature in existing coil-type cooling kettles during silica sol production.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A cooling device for silica sol production includes a vessel body, a top cover, and a bottom cover. A feeding pipe and a discharging pipe are respectively connected to the top cover and the bottom cover. A water inlet pipe and a water outlet pipe are respectively connected to the bottom of one side and the top of the other side of the vessel body. An upper partition is installed between the vessel body and the top cover, and a lower partition is installed between the vessel body and the bottom cover.

[0007] The inside of the vessel is uniformly installed between the upper and lower partitions, with multiple vertical cooling pipes running through it. The top cover is equipped with a distribution plate located above the cooling pipes. The inside of the vessel is equipped with multiple overflow plates between the upper and lower partitions, and the overflow plates are fitted onto the cooling pipes.

[0008] Preferably, the cooling pipe includes a pipe body, a funnel body disposed at the upper end of the pipe body, a flange disposed at the top of the funnel body, and a limiting flange sleeved at the lower end of the pipe body. The flange is mounted on the upper partition plate, and the limiting flange is installed at the bottom of the lower partition plate.

[0009] Preferably, the inner wall of the tube is further provided with a spiral guide plate.

[0010] Preferably, the material distribution disc is a disc with a smooth curved surface and evenly distributed distribution holes, which is convex upward at the top.

[0011] Preferably, the overflow plate is a baffle with overflow holes evenly distributed on its surface and clearance holes provided at the corresponding cooling material pipe, and lifting lugs are symmetrically connected above the overflow plate.

[0012] Preferably, the multiple overflow plates are equidistantly arranged in the vertical direction, and a bracket supporting the overflow plates is fixedly connected to the inner wall of the vessel.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This invention solves the problems of slow cooling speed and uneven temperature in existing coil-type cooling reactors during silica sol production by setting multiple small-diameter cooling tubes inside the reactor body. These cooling tubes are surrounded by cooling circulating water, which improves the heat exchange efficiency between silica sol and cooling water, increases the cooling speed, reduces the internal temperature difference of silica sol, and improves production efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the material distribution tray structure of this utility model;

[0018] Figure 4 This is a top view of the material distribution tray of this utility model;

[0019] Figure 5 This is a schematic diagram of the cooling material pipe structure of this utility model;

[0020] Figure 6 This is a top view of the cooling material tube of this utility model;

[0021] Figure 7 This is a top view of the overflow plate of this utility model.

[0022] In the diagram: 1. Kettle body; 2. Top cover; 3. Bottom cover; 4. Feeding pipe; 5. Discharging pipe; 6. Water inlet pipe; 7. Water outlet pipe; 8. Upper partition plate; 9. Lower partition plate; 10. Cooling feed pipe; 1001. Pipe body; 1002. Funnel body; 1003. Flange; 1004. Limiting flange; 1005. Spiral guide plate; 11. Distribution plate; 1101. Diversion hole; 12. Overflow plate; 1201. Overflow hole; 1202. Clearance hole; 1203. Lifting lug; 13. Bracket. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-7 As shown, this utility model provides a technical solution: a silica sol production cooling device, including a vessel body 1, a top cover 2 and a bottom cover 3, with a feeding pipe 4 and a discharging pipe 5 respectively connected to the top cover 2 and the bottom cover 3, and a water inlet pipe 6 and a water outlet pipe 7 respectively connected to the bottom of one side and the top of the other side of the vessel body 1, with an upper partition plate 8 installed between the vessel body 1 and the top cover 2, and a lower partition plate 9 installed between the vessel body 1 and the bottom cover 3;

[0025] Inside the vessel body 1, between the upper partition 8 and the lower partition 9, there are multiple vertical cooling pipes 10 that run through the vessel body 1. Each cooling pipe 10 includes a pipe body 1001, a funnel body 1002 located at the upper end of the pipe body 1001, a flange 1003 located at the top of the funnel body 1002, and a limiting flange 1004 fitted at the lower end of the pipe body 1001. The flange 1003 is mounted on the upper partition 8, and the limiting flange 1004 is installed at the bottom of the lower partition 9. A spiral guide plate 1005 is also provided on the inner wall of the pipe body 1001.

[0026] Inside the top cover 2, there is a distribution plate 11 located above the cooling material pipe 10. The distribution plate 11 is a disc with a smooth curved surface and evenly distributed diversion holes 1101. Inside the vessel body 1, between the upper partition 8 and the lower partition 9, there are multiple overflow plates 12. The overflow plates 12 are fitted onto the cooling material pipe 10. The overflow plates 12 are baffles with evenly distributed overflow holes 1201 on their surface and clearance holes 1202 corresponding to the cooling material pipe 10. The overflow plates 12 are also symmetrically connected to the top of the overflow plates 12. The multiple overflow plates 12 are evenly spaced along the vertical direction. The inner wall of the vessel body 1 is fixedly connected to a bracket 13 that supports the overflow plates 12.

[0027] Working principle:

[0028] The silica sol material is added into the top cover 2 through the feeding pipe 4. Under the action of the distribution plate 11, it is diverted to the surroundings and downwards and injected into multiple cooling pipes 10. Cooling circulating water enters the vessel body 1 through the water inlet pipe 6, soaks the cooling pipes 10, and exchanges heat with the cooling pipes 10 and the material inside them to achieve cooling. Since the diameter of the cooling pipes 10 is much smaller than that of the vessel body 1, the heat exchange efficiency is relatively high, and the material inside the cooling pipes 10 is cooled more evenly. The cooling circulating water flows out from the water outlet pipe 7 for cooling and circulation, and the material is discharged from the discharge pipe 5, completing uniform and efficient cooling.

[0029] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling device for silica sol production, comprising a vessel body (1), a top cover (2), and a bottom cover (3), wherein a feeding pipe (4) and a discharging pipe (5) are respectively connected to the top cover (2) and the bottom cover (3), and a water inlet pipe (6) and a water outlet pipe (7) are respectively connected to the bottom of one side and the top of the other side of the vessel body (1), characterized in that: An upper partition (8) is installed between the vessel body (1) and the top cover (2), and a lower partition (9) is installed between the vessel body (1) and the bottom cover (3). The inside of the vessel body (1) is evenly installed between the upper partition (8) and the lower partition (9) with multiple vertical cooling pipes (10) running through it. The inside of the top cover (2) is installed with a distribution plate (11) above the cooling pipes (10). The inside of the vessel body (1) is installed between the upper partition (8) and the lower partition (9) with multiple overflow plates (12). The overflow plates (12) are sleeved on the cooling pipes (10). The cooling pipe (10) includes a pipe body (1001), a funnel body (1002) disposed at the upper end of the pipe body (1001), a flange (1003) disposed at the top of the funnel body (1002), and a limiting flange (1004) sleeved at the lower end of the pipe body (1001). The flange (1003) is mounted on the upper partition plate (8), and the limiting flange (1004) is installed at the bottom of the lower partition plate (9). The inner wall of the pipe body (1001) is also provided with a spiral guide plate (1005). The overflow plate (12) is a baffle with overflow holes (1201) evenly distributed on its surface and clearance holes (1202) provided at the corresponding cooling pipe (10). The overflow plate (12) is also symmetrically connected with lifting lugs (1203) above it.

2. The silica sol production cooling device according to claim 1, characterized in that: The material distribution plate (11) is a disc with a smooth curved surface and evenly distributed distribution holes (1101) with an upward convex top.

3. The silica sol production cooling device according to claim 1, characterized in that: The overflow plates (12) of the multi-layer structure are equidistantly arranged in the vertical direction, and the inner wall of the vessel body (1) is fixedly connected with a bracket (13) that supports the overflow plates (12).

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