A reactor for nanosilicates
By using a spiral plate for initial mixing and a stirring device with a specific structure, the problems of uneven mixing and agglomeration in the nano-silicate reactor were solved, achieving uniform dispersion and thorough mixing of nanoparticles, thereby improving reaction efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIFAN TECH (ZHEJIANG) CO LTD
- Filing Date
- 2025-08-09
- Publication Date
- 2026-06-23
Smart Images
Figure CN224388796U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of reactors, and more particularly to a reactor for nano-silicates. Background Technology
[0002] The preparation of nano-silicates requires grinding silicates, then adding silicates to a reactor and synthesizing silicate particles at the nanoscale (1-100 nm) through a chemical reaction. The core objective is to control the particle size, ensure uniform dispersion, and avoid agglomeration.
[0003] Existing nano-silicate preparation equipment mostly uses traditional reactors for preparation; and uses motors to control the stirring rods to accelerate the chemical reaction in the reactor.
[0004] However, most existing nanosilicate reactors use batch reactors and employ stirring rods to control reactor stirring. Because silicates are prone to agglomeration, traditional stirring methods are insufficient to disperse nanoparticles, leading to uneven mixing within the reactor. Utility Model Content
[0005] This utility model aims to at least partially solve one of the technical problems in the related art.
[0006] Therefore, this invention proposes a reactor for nano-silicates. Sodium silicate solution and sodium hydroxide solution are injected from the top of a mixing cylinder and initially mixed via a spiral plate. The mixture then enters the reaction chamber. A motor drives a rotating shaft, causing several 45° inclined stirring rods on a fixed ring to rotate, rapidly initiating a chemical reaction and producing polymers. Simultaneously, cooling water enters the annular cooling jacket through a water supply pipe to control the temperature within the reaction chamber, and is discharged through a drain pipe, thus achieving temperature regulation of the reaction chamber. A downward vortex is generated, causing the polymer to flow downwards through the channels of the reaction chamber. Furthermore, the several rotating stirring rods, with horizontal serrated grooves, shear the reacted nano-silicate aggregates, resulting in more uniform dispersion and more thorough mixing of the nanoparticles. Finally, the prepared nano-silicate is discharged through a discharge pipe.
[0007] To achieve the above objectives, this utility model proposes a reactor for nano-silicates, comprising a reactor body, a mixing cylinder for adding silicon source and alkali solution to the reactor body fixedly installed at the top of the reactor body, a stirring device for stirring the silicon source and alkali solution within the reactor body, and a cooling device for cooling the reactor body; a conical reaction chamber is formed within the reactor body; the stirring device includes a drive assembly for rotation within the reactor body, a first stirring assembly for stirring the upper side of the reaction chamber and a second stirring assembly for stirring the lower side of the reaction chamber, both mounted on the shaft of the drive assembly.
[0008] In addition, the nano-silicate reactor proposed in this application may also have the following additional technical features:
[0009] Specifically, the bottom end of the reactor body is fixedly equipped with four support legs for supporting the reactor body, and the bottom end of the reactor body is provided with a discharge pipe for discharging the nano-silicates prepared in the reactor body.
[0010] Specifically, a spiral plate for dividing the mixing cylinder into two openings is fixedly installed inside the cavity of the mixing cylinder.
[0011] Specifically, the drive assembly includes a rotating shaft disposed within the reactor body for rotation, and a motor for driving the rotating shaft to rotate is fixedly mounted at the top end of the rotating shaft.
[0012] Specifically, the stirring assembly includes a fixing ring fixedly mounted on the shaft of the rotating shaft, and a stirring rod for stirring the upper side of the reaction chamber is fixedly mounted on the ring of the fixing ring, and the stirring rod is inclined at 45°.
[0013] Specifically, the stirring assembly two includes a fixing ring two fixedly installed on the shaft of the rotating shaft, and the fixing ring two is located below the fixing ring one. The ring body of the fixing ring two is fixedly installed with a stirring rod two for stirring the lower side of the reaction chamber, and there are several stirring rods two. The top end of the stirring rod two is provided with a serrated groove for shearing the agglomerates on the lower side of the reaction chamber, and there are several serrated grooves.
[0014] Specifically, the cooling device includes an annular cooling jacket fitted around the outside of the reaction chamber for cooling. A water supply pipe for supplying cooling water into the annular cooling jacket is fixedly installed on the outside of the annular cooling jacket, and a drain pipe for discharging the cooling water from the annular cooling jacket is fixedly installed on the outside of the annular cooling jacket.
[0015] Compared with the prior art, the beneficial effects of this application are as follows:
[0016] By setting up a mixing cylinder and a stirring device, sodium silicate solution and sodium hydroxide solution can be injected from the top of the mixing cylinder and initially mixed by a spiral plate. The mixture then enters the reaction chamber. A motor drives a rotating shaft, which in turn causes several 45° inclined stirring rods on a fixed ring to rotate, rapidly carrying out a chemical reaction and producing polymers. Simultaneously, cooling water enters the annular cooling jacket through a water supply pipe to control the temperature inside the reaction chamber, and is discharged through a drain pipe, thus achieving temperature regulation of the reaction chamber. A downward vortex is generated, causing the polymer to flow downwards through the channels of the reaction chamber. Meanwhile, several rotating stirring rods with horizontal serrated grooves shear the reacted nano-silicate nano-agglomerates, resulting in more uniform dispersion and more thorough mixing of the nanoparticles. Finally, the prepared nano-silicate is discharged through a discharge pipe.
[0017] 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
[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:
[0019] Figure 1 This is a schematic diagram of the overall structure of a nano-silicate reactor according to one embodiment of the present invention;
[0020] Figure 2 This is a cross-sectional view of the reactor body of a nano-silicate reactor according to an embodiment of the present invention.
[0021] Figure 3 This is a schematic diagram of the stirring device structure of a nano-silicate reactor according to an embodiment of the present invention.
[0022] Figure 4 A nano-silicate reactor is one embodiment of this utility model. Figure 3 Enlarged view of point A in the middle.
[0023] As shown in the figure: 100, reactor body; 101, support leg; 102, discharge pipe; 103, reaction chamber; 200, mixing cylinder; 201, spiral plate; 300, stirring device; 310, drive assembly; 311, motor; 312, rotating shaft; 320, stirring assembly one; 321, fixing ring one; 322, stirring rod one; 330, stirring assembly two; 331, fixing ring two; 332, stirring rod two; 333, serrated groove; 400, cooling device; 410, annular cooling jacket; 420, water supply pipe; 430, drain pipe. Detailed Implementation
[0024] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals 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 intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.
[0025] The following describes a nano-silicate reactor according to an embodiment of the present invention with reference to the accompanying drawings.
[0026] like Figures 1-4 As shown, a nano-silicate reactor according to an embodiment of the present invention may include a reactor body 100, a mixing cylinder 200 for adding silicon source and alkali solution into the reactor body 100 is fixedly installed at the top of the reactor body 100, a stirring device 300 for stirring the silicon source and alkali solution is provided inside the reactor body 100, and a cooling device 400 for cooling the reactor body 100 is provided inside the reactor body 100; a conical reaction chamber 103 is opened inside the reactor body 100; the stirring device 300 includes a drive assembly 310 for rotation provided inside the reactor body 100, a stirring assembly 320 for stirring the upper side of the reaction chamber 103 is provided on the shaft of the drive assembly 310, and a stirring assembly 330 for stirring the lower side of the reaction chamber 103 is provided on the shaft of the drive assembly 310.
[0027] In one embodiment of this utility model, such as Figure 2 As shown, the bottom end of the reactor body 100 is fixedly equipped with four support legs 101 for supporting the reactor body 100. The four support legs 101 are welded in a circumferential array at the four corners of the bottom end of the reactor body 100. The bottom end of the reactor body 100 is provided with a discharge pipe 102 for discharging the nano-silicate prepared inside the reactor body 100. The discharge pipe 102 has a built-in control switch, so the control switch can be used to control the opening and closing of the discharge pipe 102 to discharge the nano-silicate prepared inside the reactor body 100. The inner wall of the reaction chamber 103 is covered with a corrosion-resistant ceramic coating, so that the nano-silicate can carry out chemical reactions in it.
[0028] In one embodiment of this utility model, such as Figure 3As shown, a spiral plate 201 for dividing the mixing cylinder 200 into two ports is fixedly installed inside the cylinder cavity of the mixing cylinder 200; wherein the spiral plate 201 fixedly installed inside the cylinder cavity of the mixing cylinder 200 divides the mixing cylinder 200 into a silicon source inlet and an alkali inlet; and pre-dispersion is achieved by utilizing fluid spin.
[0029] In one embodiment of this utility model, such as Figure 3 and Figure 4 As shown, the drive assembly 310 includes a rotating shaft 312 disposed inside the reactor body 100 for rotation, and the upper and lower ends of the rotating shaft 312 are connected to the upper and lower ends of the reactor body 100 through bearings, thus facilitating the rotation of the rotating shaft 312; a motor 311 for driving the rotating shaft 312 to rotate is fixedly installed at the top end of the rotating shaft 312, and the motor 311 can be connected to the rotating shaft 312 through a coupling, so the rotating shaft 312 can be driven to rotate by the motor 311.
[0030] Furthermore, the stirring assembly 320 includes a fixing ring 321 fixedly mounted on the shaft of the rotating shaft 312. A stirring rod 322 for stirring the upper side of the reaction chamber 103 is fixedly mounted on the ring of the fixing ring 321. The stirring rod 322 is inclined at 45°. There are several stirring rods 322. The several stirring rods 322 are welded to the ring of the fixing ring 321 in a circumferential array. The rotation of the several stirring rods 322 inclined at 45° can generate a downward vortex, which flows downward through the channel of the reaction chamber 103.
[0031] Furthermore, the stirring assembly 330 includes a fixing ring 331 fixedly mounted on the shaft of the rotating shaft 312, and the fixing ring 331 is located below the fixing ring 321. A stirring rod 332 for stirring the lower side of the reaction chamber 103 is fixedly mounted on the ring of the fixing ring 331, and there are several stirring rods 332 arranged in a circumferential array on the ring of the fixing ring 331. The top of the stirring rod 332 is provided with a serrated groove 333 for shearing the agglomerates on the lower side of the reaction chamber 103, and there are several serrated grooves 333 arranged in a linear array on each stirring rod 332. The several rotating stirring rods 332 have horizontal serrated grooves 333, which can shear the nano-silica agglomerates after the reaction and make the nanoparticles more uniformly dispersed and more thoroughly mixed.
[0032] In one embodiment of this utility model, such as Figure 2As shown, the cooling device 400 includes an annular cooling jacket 410 fitted around the outside of the reaction chamber 103 for cooling. A water supply pipe 420 for supplying cooling water into the annular cooling jacket 410 is fixedly installed on the outside of the annular cooling jacket 410, and a drain pipe 430 for draining the cooling water from the annular cooling jacket 410 is fixedly installed on the outside of the annular cooling jacket 410. Therefore, cooling water enters the annular cooling jacket 410 along the water supply pipe 420 to control the temperature inside the reaction chamber 103, and at the same time, cooling water is discharged along the drain pipe 430, thus achieving temperature regulation of the reaction chamber 103.
[0033] In summary, the nanosilicate reactor of this embodiment of the present invention can inject sodium silicate solution and sodium hydroxide solution from the top of the mixing cylinder 200, and initially mix them through the spiral plate 201; the mixture enters the reaction chamber 103; and the rotating shaft 312 driven by the motor 311 rotates, which allows the rotation of several 45° inclined stirring rods 322 on the fixed ring 321 to quickly carry out chemical reaction and produce polymer; at the same time, cooling water enters the annular cooling jacket 410 through the water supply pipe 420 to control the temperature in the reaction chamber 103, and the cooling water is discharged through the drain pipe 430, thus realizing the temperature regulation of the reaction chamber 103; a downward vortex is generated to allow the polymer to flow downward through the channel of the reaction chamber 103; at the same time, the several rotating stirring rods 332 with horizontal serrated grooves 333 can shear the nanosilicate nano-agglomerates after reaction; and make the nanoparticles more uniformly dispersed and more thoroughly mixed; finally, the prepared nanosilicate is discharged through the discharge pipe 102.
[0034] In the description of this specification, 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.
[0035] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0036] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A reactor for nano-silicates, characterized in that, The reactor includes a reactor body (100), a mixing cylinder (200) for adding silicon source and alkali solution into the reactor body (100) is fixedly installed at the top of the reactor body (100), a stirring device (300) for stirring the silicon source and alkali solution is provided inside the reactor body (100), and a cooling device (400) for cooling the reactor body (100) is provided inside the reactor body (100); a cone-shaped reaction chamber (103) is opened inside the reactor body (100); the stirring device (300) includes a drive assembly (310) for rotation provided inside the reactor body (100), a stirring assembly one (320) for stirring the upper side of the reaction chamber (103) is provided on the shaft of the drive assembly (310), and a stirring assembly two (330) for stirring the lower side of the reaction chamber (103) is provided on the shaft of the drive assembly (310).
2. The reactor for nano-silicates according to claim 1, characterized in that, The bottom end of the reactor body (100) is fixedly equipped with support legs (101) for supporting the reactor body (100), and there are four support legs (101). The bottom end of the reactor body (100) is provided with a discharge pipe (102) for discharging the nano-silicate prepared in the reactor body (100).
3. The reactor for nano-silicates according to claim 1, characterized in that, The mixing cylinder (200) is fixedly installed with a spiral plate (201) for dividing the mixing cylinder (200) into two ports.
4. The reactor for nano-silicates according to claim 1, characterized in that, The drive assembly (310) includes a rotating shaft (312) disposed within the reactor body (100) for rotation, and a motor (311) for driving the rotating shaft (312) to rotate is fixedly mounted on the top end of the rotating shaft (312).
5. The reactor for nano-silicates according to claim 4, characterized in that, The stirring assembly (320) includes a fixing ring (321) fixedly installed on the shaft of the rotating shaft (312). A stirring rod (322) for stirring the upper side of the reaction chamber (103) is fixedly installed on the ring of the fixing ring (321), and the stirring rod (322) is inclined at 45°.
6. The reactor for nano-silicates according to claim 5, characterized in that, The stirring assembly 2 (330) includes a fixing ring 2 (331) fixedly installed on the shaft of the rotating shaft (312), and the fixing ring 2 (331) is located below the fixing ring 1 (321). The ring body of the fixing ring 2 (331) is fixedly installed with a stirring rod 2 (332) for stirring the lower side of the reaction chamber (103), and there are several stirring rods 2 (332). The top end of the stirring rod 2 (332) is provided with a serrated groove (333) for shearing the agglomerates on the lower side of the reaction chamber (103), and there are several serrated grooves (333).
7. The reactor for nano-silicates according to claim 1, characterized in that, The cooling device (400) includes an annular cooling jacket (410) fitted around the outside of the reaction chamber (103) for cooling. A water supply pipe (420) for supplying cooling water into the annular cooling jacket (410) is fixedly installed on the outside of the annular cooling jacket (410). A drain pipe (430) for draining the cooling water from the annular cooling jacket (410) is fixedly installed on the outside of the annular cooling jacket (410).