Precipitation method silicon dioxide multifunctional stirring device

Abstract

The utility model relates to the technical field of silicon dioxide, in particular to a precipitation method silicon dioxide multifunctional stirring device, which comprises a first stirring device, a second stirring device, a first driving device and a second driving device, the stirring shaft is a hollow shaft, the stirring assemblies are sequentially connected to the stirring shaft from top to bottom, each stirring assembly comprises three stirring blades, the three stirring blades are arranged in a circumferential array with the stirring shaft as the axial direction, the first driving device is used for driving the stirring shaft to rotate, the second stirring device comprises a rotating shaft and an emulsifying head, and the rotating shaft is coaxially connected into the stirring shaft in an autorotation mode. The emulsifying head is connected to the lower end of the rotating shaft and located below the stirring shaft, the second driving device is used for driving the rotating shaft to rotate, and through the structure, stirring and dispersing can be conducted in the tank body, and emulsifying and mixing can also be conducted in the tank body.

Description

Technical Field

[0001] The utility model relates to the technical field of silicon dioxide, in particular to a multifunctional stirring device for silicon dioxide produced by a precipitation method. Background Art

[0002] With the development of science and technology, precipitated silica is increasingly widely used in catalysts, adsorbents, grinders, etc. In the process of preparing precipitated silica, a stirrer is basically used for dispersion and mixing, and the existing stirring device cannot achieve the effect of uniform mixing in a tank. In the reaction and acidification process, uneven mixing of materials in the tank is prone to occur, resulting in local acidification, which has a certain impact and risk on product quality. Since there are certain deficiencies in the whole process dispersion and mixing effect by a single stirring blade, the use of emulsification for mixing is currently the best method, but this method requires the reaction materials to be taken out after stirring and placed in an emulsification device for emulsification. This method not only wastes time, but also requires multiple tanks in the process of taking out the reaction materials, and material loss will also occur. The materials in the acidification and aging stages are in the stable period after the reaction, which is not suitable for changing tanks for mixing. There is a risk of unstable quality, which reduces production efficiency. Therefore, there is an urgent need for a multifunctional stirring device for precipitated silica, which can not only stir and disperse in the tank, but also perform emulsification and mixing in the tank. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a multifunctional stirring device for precipitated silicon dioxide, which can perform stirring and dispersion in a tank body and emulsification and mixing in the tank body.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a multifunctional stirring device for precipitated silica, comprising:

[0005] frame;

[0006] A tank body, wherein the upper portion of the tank body is provided with a feed inlet, and the lower portion of the tank body is provided with a discharge outlet;

[0007] A first stirring device, the first stirring device comprises a stirring shaft and a plurality of stirring components, the stirring shaft is coaxially connected to the tank body, the stirring shaft is a hollow shaft, the plurality of stirring components are sequentially connected to the stirring shaft from top to bottom, the stirring component comprises three stirring blades, and the three stirring blades are arranged in a circumferential array with the stirring shaft as the axial direction;

[0008] A first driving device, the first driving device is used to drive the stirring shaft to rotate;

[0009] A second stirring device, the second stirring device comprises a rotating shaft and an emulsifying head, the rotating shaft is coaxially connected to the stirring shaft, the emulsifying head is connected to the lower end of the rotating shaft, and the emulsifying head is located below the stirring shaft;

[0010] The second driving device is used to drive the rotating shaft to rotate.

[0011] Furthermore, the first driving device includes a first gear, a second gear and a first driving motor, the first gear is coaxially connected to the stirring shaft, the second gear is meshed with the first gear, the first driving motor is connected to the frame, and the first driving motor is transmission-connected to the second gear.

[0012] Furthermore, the second driving device includes a first pulley, a second pulley and a second driving motor, the first pulley is coaxially connected to one end of the rotating shaft, the second pulley is connected to the first pulley through a belt, the second driving motor is connected to the frame, and the second driving motor is connected to the second pulley.

[0013] Furthermore, the stirring blade is divided into a first stirring blade and a second stirring blade, and there is an angle between the first stirring blade and the second stirring blade, and the degree of the angle is 120-135°.

[0014] Furthermore, the ratio of the spacing between each set of stirring components to the height of the tank body is 1:5, and the distance between the stirring blades and the inner wall of the tank body is 20cm-30cm.

[0015] The beneficial effect of the utility model is that: by matching the rotating shaft, the stirring shaft, the first driving device, the second driving device and the stirring assembly, the rotation of the rotating shaft and the stirring shaft do not interfere with each other, the rotation of the stirring shaft drives the rotation of the stirring assembly, the silica reaction material is stirred and dispersed in the tank body, the rotation of the rotating shaft drives the rotation of the emulsification head, and the silica reaction material is emulsified and mixed in the tank body, which not only improves the quality of the product, but also improves the production efficiency of silica. Compared with the prior art, it avoids the instability of silica caused by changing the tank body for emulsification, and the silica reaction material can be stirred and dispersed in a tank body, and the silica reaction material can also be emulsified and mixed in the acidification and aging stages. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a multifunctional stirring device for precipitated silicon dioxide according to a specific embodiment of the utility model;

[0017] Figure 2 It is a front view of a multifunctional stirring device for precipitated silicon dioxide according to a specific embodiment of the utility model;

[0018] Figure 3 for Figure 2 A-direction cross-sectional view;

[0019] Figure 4 A side view of a multifunctional stirring device for precipitated silicon dioxide according to a specific embodiment of the utility model;

[0020] Figure 5 for Figure 4 B-direction cross-sectional view.

[0021] Figure 6 This is a diagram of the internal structure of a tank of a multifunctional stirring device for precipitated silica according to a specific implementation method of the utility model.

[0022] Description of labels:

[0023] 1. Frame; 2. Tank; 21. Feed inlet; 22. Discharge outlet; 3. Stirring assembly; 31. Stirring blade; 311. First stirring blade; 312. Second stirring blade; 32. Stirring shaft; 321. First bearing sleeve; 4. First driving device; 41. First gear; 42. Second gear; 43. First driving motor; 5. Second driving device; 51. First pulley; 52. Second pulley; 53. Second driving motor; 6. Rotating shaft; 61. Second bearing sleeve; 7. Emulsifying head; DETAILED DESCRIPTION

[0024] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0025] Please refer to Figures 1 to 6 , a multifunctional stirring device for precipitated silica, comprising:

[0026] Rack 1;

[0027] A tank body 2, wherein a feed inlet 21 is provided at the upper portion of the tank body 2 and a discharge outlet 22 is provided at the lower portion of the tank body 2;

[0028] A first stirring device, the first stirring device comprises a stirring shaft and a plurality of stirring components 3, the stirring shaft is coaxially connected to the tank body 2, the stirring shaft is a hollow shaft, and the plurality of stirring components 3 are sequentially connected to the stirring shaft from top to bottom, the stirring component 3 comprises three stirring blades, and the three stirring blades are arranged in a circumferential array with the stirring shaft as the axial direction;

[0029] A first driving device 4, the first driving device 4 is used to drive the stirring shaft to rotate;

[0030] The second stirring device comprises a rotating shaft 6 and an emulsifying head 7. The rotating shaft 6 is coaxially connected to the stirring shaft, and the emulsifying head 7 is connected to the lower end of the rotating shaft 6. The emulsifying head 7 is located below the stirring shaft.

[0031] The second driving device 5 is used to drive the rotating shaft 6 to rotate.

[0032] In the above embodiments, it should be noted that the emulsifying head can adopt the high-speed emulsifying head of Hengdong Technology, the stirring shaft is provided with a first bearing sleeve, the stirring shaft is stably connected to the inner wall of the tank body through the first bearing sleeve, the rotating shaft is provided with a second bearing sleeve, the rotating shaft is stably connected to the inside of the stirring shaft through the second bearing sleeve, the silica reaction material is put into the feed port 21, the first driving device 4 is used to drive the stirring shaft to rotate during the early reaction of silica, and the silica reaction material is stirred and mixed uniformly by the stirring blades, when the silica enters the acidification and aging stage, the first driving device 4 is closed, the stirring shaft stops rotating, and the second driving device 5 drives the rotating shaft 6 to rotate, thereby driving the emulsifying head 7 to rotate, and the reaction material in the tank body 2 is emulsified and mixed, and then the emulsified slurry is discharged from the discharge port 22. Compared with the prior art, the instability of silica caused by the conversion of the tank body 2 for emulsification is avoided, and the silica reaction material can be stirred and dispersed in a tank body 2, and the silica reaction material can also be emulsified and mixed in the acidification and aging stages.

[0033] As an optional embodiment, the first driving device 4 includes a first gear, a second gear 41; 42 and a first driving motor 43, the first gear is coaxially connected to the stirring shaft, the second gear 41; 42 is meshed with the first gear, the first driving motor 43 is connected to the frame 1, and the first driving motor 43 is transmission connected to the second gear 41; 42.

[0034] In the above embodiment, the first drive motor 43 drives the second gear 41 and the first gear 42 to rotate, and the first gear and the second gear 41 and the first gear 42 are meshed, thereby rotating the first gear and driving the stirring shaft to rotate stably in the tank body 2.

[0035] As an optional embodiment, the second driving device 5 includes a first pulley, a second pulley 51 a first pulley; 52 and a second driving motor 53, the first pulley is coaxially connected to one end of the rotating shaft 6, the second pulley 51 a first pulley; 52 is connected to the first pulley through a belt, the second driving motor 53 is connected to the frame 1, and the second driving motor 53 is connected to the second pulley 51 a first pulley; 52.

[0036] In the above embodiment, the second drive motor 53 drives the second pulley 51 and the first pulley 52 to rotate, and the first pulley and the second pulley 51 and the first pulley 52 are connected by belt transmission, so that the first pulley rotates, driving the rotating shaft 6 to rotate stably in the stirring shaft.

[0037] As an optional implementation, the stirring blade is divided into a first stirring blade 311 and a second stirring blade 312 , and there is an angle between the first stirring blade 311 and the second stirring blade 312 , and the degree of the angle is 120-135°.

[0038] In the above embodiment, when the stirring component 3 stirs the silica reaction material, the angle of 120-135° between the first stirring blade 311 and the second stirring blade 312 can be used to reduce the vortex speed formed by the reaction material during stirring, thereby making the stirring more uniform, improving the mixing efficiency, and reducing the vortex speed, which can reduce the impact and wear of the vortex on the stirring component 3, further extending the service life of the stirring component 3, and avoiding the occurrence of uneven distribution of silica particles.

[0039] As an optional implementation, the ratio of the spacing between each group of stirring components 3 and the height of the tank body 2 is 1:5, and the distance between the stirring blades 31 and the inner wall of the tank body 2 is 20 cm-30 cm.

[0040] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A multifunctional stirring device for precipitated silica, characterized in that: include: frame; A tank body, wherein the upper portion of the tank body is provided with a feed inlet, and the lower portion of the tank body is provided with a discharge outlet; A first stirring device, the first stirring device comprises a stirring shaft and a plurality of stirring components, the stirring shaft is coaxially connected to the tank body, the stirring shaft is a hollow shaft, the plurality of stirring components are sequentially connected to the stirring shaft from top to bottom, the stirring component comprises three stirring blades, and the three stirring blades are arranged in a circumferential array with the stirring shaft as the axial direction; A first driving device, the first driving device is used to drive the stirring shaft to rotate; A second stirring device, the second stirring device comprises a rotating shaft and an emulsifying head, the rotating shaft is coaxially connected to the stirring shaft, the emulsifying head is connected to the lower end of the rotating shaft, and the emulsifying head is located below the stirring shaft; The second driving device is used to drive the rotating shaft to rotate.

2. The multifunctional stirring device for precipitated silica according to claim 1, characterized in that: The first driving device comprises a first gear, a second gear and a first driving motor, the first gear is coaxially connected to the stirring shaft, the second gear is meshed with the first gear, the first driving motor is connected to the frame, and the first driving motor is drivingly connected to the second gear.

3. The multifunctional stirring device for precipitated silica according to claim 1, characterized in that: The second driving device includes a first pulley, a second pulley and a second driving motor. The first pulley is coaxially connected to one end of the rotating shaft, the second pulley is connected to the first pulley through a belt, the second driving motor is connected to the frame, and the second driving motor is connected to the second pulley.

4. The multifunctional stirring device for precipitated silica according to claim 1, characterized in that: The stirring blade is divided into a first stirring blade and a second stirring blade. There is an angle between the first stirring blade and the second stirring blade, and the degree of the angle is 120-135 degrees.

5. The multifunctional stirring device for precipitated silica according to claim 1, characterized in that: The ratio of the spacing between each set of stirring components to the height of the tank body is 1:5, and the distance between the stirring blades and the inner wall of the tank body is 20cm-30cm.

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