CN111874916B - Integrative device of calcination dispersion is used in preparation of nanometer silica powder - Google Patents
Integrative device of calcination dispersion is used in preparation of nanometer silica powder Download PDFInfo
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- CN111874916B CN111874916B CN202010811780.3A CN202010811780A CN111874916B CN 111874916 B CN111874916 B CN 111874916B CN 202010811780 A CN202010811780 A CN 202010811780A CN 111874916 B CN111874916 B CN 111874916B
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 239000006185 dispersion Substances 0.000 title claims abstract description 44
- 238000001354 calcination Methods 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000000843 powder Substances 0.000 title claims description 49
- 239000000377 silicon dioxide Substances 0.000 title claims description 15
- 238000005096 rolling process Methods 0.000 claims abstract description 66
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000005192 partition Methods 0.000 claims description 27
- 239000007788 liquid Substances 0.000 claims description 24
- 238000009434 installation Methods 0.000 claims description 21
- 238000001816 cooling Methods 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000009835 boiling Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 18
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 11
- 235000017491 Bambusa tulda Nutrition 0.000 description 11
- 241001330002 Bambuseae Species 0.000 description 11
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 11
- 239000011425 bamboo Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 239000000047 product Substances 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000005543 nano-size silicon particle Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- -1 coatings Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000003937 drug carrier Substances 0.000 description 1
- 238000004100 electronic packaging Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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- Nanotechnology (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Silicon Compounds (AREA)
Abstract
本发明公开了一种纳米二氧化硅粉体制备用焙烧分散一体装置，包括：焙烧炉体，工作时焙烧炉体内部处于高温状态，将纳米二氧化硅粉体置于焙烧炉体内进行焙烧；分散组件，所述分散组件配置于焙烧炉体内部，用于对纳米二氧化硅粉体进行分散处理，所述分散组件包括滚动筒和隔板以及分散筒，所述滚动筒转动配置于焙烧炉体内部，多个所述隔板固定配置于滚动筒的内壁上，所述分散筒配置有多个贯穿筒壁的网孔，且配置于滚动筒内部，所述隔板与分散筒将滚动筒分割成多个焙烧空间；驱动组件，所述驱动组件配置于焙烧炉体内部，用于驱动滚动筒转动。本发明通过在二氧化硅粉体焙烧的过程中，对其进行分散处理，加快的二氧化硅粉体制备的速率。
The invention discloses an integrated device for roasting and dispersing nano-silicon dioxide powder for standby use. The dispersing assembly is arranged inside the roasting furnace body and is used to disperse the nano-silicon dioxide powder. The dispersing assembly includes a rolling drum, a separator and a dispersing drum, and the rolling drum is rotated and arranged in the roasting furnace body. Inside, a plurality of the separators are fixedly arranged on the inner wall of the rolling cylinder, the dispersing cylinder is arranged with a plurality of mesh holes penetrating the cylinder wall, and is arranged inside the rolling cylinder, the separators and the dispersing cylinder divide the rolling cylinder A plurality of roasting spaces are formed; and a driving assembly is arranged inside the roasting furnace body and is used to drive the rolling drum to rotate. The present invention speeds up the preparation rate of the silicon dioxide powder by performing dispersion treatment on the silicon dioxide powder in the process of calcining the silicon dioxide powder.
Description
Technical Field
The invention belongs to the technical field of nano silicon dioxide powder preparation, and particularly relates to a roasting and dispersing integrated device for preparing nano silicon dioxide powder.
Background
The nano silicon dioxide has excellent physical properties, is widely applied to the fields of electronic packaging materials, high polymer composite materials, plastics, coatings, rubber, pigments, ceramics, adhesives, glass fiber reinforced plastics, drug carriers, cosmetics, sterilization materials and the like, and brings epoch-making significance to the application of traditional silicon dioxide products.
The preparation principle of the nano silicon dioxide is that industrial sodium silicate is dissolved in water, hydrochloric acid is added to react to generate corresponding product precipitate, then the product precipitate is filtered and washed, and finally the product precipitate is roasted at high temperature to form silicon dioxide powder. The powder is probably in an agglomerated state after being roasted, and then is uniformly dispersed by powder dispersing equipment, so that the preparation is finished. In the prior art, roasting equipment and dispersing equipment are independently arranged, and dispersing treatment is required after roasting is finished, so that the preparation efficiency is low, and a larger production space is required; meanwhile, in the process of roasting the silicon dioxide, the powder slowly agglomerates along with the evaporation of moisture, and the roasting effect of the powder in the powder block is poor because the powder cannot be in direct contact with high-temperature air, so that the integral roasting effect of the silicon dioxide powder is gradually reduced along with the increase of the roasting time.
Disclosure of Invention
Based on the technical problems in the prior art, the invention provides a roasting and dispersing integrated device for preparing nano silicon dioxide powder, which is low in production efficiency caused by the fact that the qualified roasting and dispersing processes are separately treated in the existing nano silicon dioxide powder preparation process.
The invention provides a roasting and dispersing integrated device for preparing nano silicon dioxide powder, which comprises:
the roasting furnace body is in a high-temperature state when in work, and the nano silicon dioxide powder is placed in the roasting furnace body for roasting;
the dispersion assembly is arranged in the roasting furnace body and used for performing dispersion treatment on the nano silicon dioxide powder, the dispersion assembly comprises a rolling cylinder, partition plates and a dispersion cylinder, the rolling cylinder is rotationally arranged in the roasting furnace body, the partition plates are fixedly arranged on the inner wall of the rolling cylinder, the dispersion cylinder is provided with a plurality of meshes penetrating through the cylinder wall and is arranged in the rolling cylinder, and the rolling cylinder is divided into a plurality of roasting spaces by the partition plates and the dispersion cylinder;
the driving assembly is arranged in the roasting furnace body and used for driving the rolling cylinder to rotate;
the driving component is arranged in the roasting furnace body, and the driving component drives the rolling cylinder to rotate through the driving component.
Preferably, the driving assembly comprises a mounting pipe, a wind wheel and a pressure valve, the mounting pipe is vertically and fixedly arranged inside the roasting furnace body, the upper end of the mounting pipe is communicated with the outside of the roasting furnace body, the wind wheel is rotatably arranged inside the upper end of the mounting pipe, the pressure valve is arranged inside the mounting pipe and below the wind wheel, liquid is filled in the mounting pipe, the boiling point of the liquid is lower than the roasting temperature and below the pressure valve, and the wind wheel is connected with the rolling cylinder through a transmission assembly.
Preferably, the transmission assembly comprises a worm and a worm wheel, the worm is rotatably arranged on the mounting pipe, the wind wheel is fixedly sleeved on the worm, the worm wheel is fixedly sleeved on the rolling cylinder, and the worm is in meshed connection with the worm wheel.
Preferably, the roasting and dispersing integrated device further comprises a support component, and the support component is used for supporting the dispersing component.
Preferably, the supporting component comprises a supporting rod and a rotating wheel, the supporting rod is fixedly arranged on the bottom wall of the roasting furnace body, and the rotating wheel is rotatably arranged at the upper end of the supporting rod and is in rolling contact with the rolling cylinder.
Preferably, the roasting and dispersing integrated device further comprises a circulating assembly for cooling the liquid in the circulating installation pipe.
Preferably, the circulation assembly comprises an air outlet pipe, a cooling box and a liquid return pipe, the cooling box is arranged outside the roasting furnace body, the upper end of the installation pipe is communicated with the upper end of the cooling box through the air outlet pipe, the lower end of the cooling box is communicated with the lower end of the installation pipe through the liquid return pipe, a check valve is arranged in the liquid return pipe, and the check valve is communicated with the installation pipe through the cooling box.
Preferably, a plurality of baffle is along a roll section of thick bamboo circumference evenly distributed, and along a roll section of thick bamboo radial extension, and is a plurality of the baffle is kept away from the one end of a roll section of thick bamboo and has been formed with the concentric circular orbit of a roll section of thick bamboo, a dispersion section of thick bamboo rotates and disposes in circular orbit, baffle tip and a dispersion section of thick bamboo sliding contact, the semicircle quality is greater than last semicircle under the dispersion section of thick bamboo, and goes up the semicircle lateral wall and have first mesh, and lower semicircle lateral wall has the second mesh, first mesh aperture is greater than the second mesh.
Preferably, one end of the partition close to the dispersing cylinder is rotatably provided with a rotating roller, and the rotating roller is in rolling contact with the dispersing cylinder.
Preferably, the diameter of the dispersing cylinder is smaller than the diameter of the circular track, a first magnet is embedded and arranged at one end, close to the dispersing cylinder, of the partition plate, a plurality of second magnets are fixedly arranged on the side wall of the dispersing cylinder, the plurality of second magnets and the plurality of first magnets are located on the same vertical plane, and the magnetic poles of two adjacent second magnets are distributed oppositely.
Compared with the prior art, the invention has the beneficial effects that:
1. the dispersing component and the driving component are arranged in the roasting furnace body, the driving component drives the rolling cylinder to rotate through the transmission component, the rolling cylinder drives powder in a roasting space to move circumferentially under the action of the partition plate when rotating, the powder starts to fall under the action of self gravity when rising to a moving height, the powder sequentially passes through the meshes on the upper wall and the lower wall of the dispersing cylinder in the falling process and finally falls into the roasting space below, the meshes have a dispersing effect on the powder, and meanwhile, the impact generated in the falling process also has a dispersing effect, so that the powder is in a continuous rolling and dispersing motion state in the roasting process, the phenomenon that the powder is gradually agglomerated in the roasting process is avoided, the powder cannot be agglomerated after being roasted, the subsequent dispersing treatment is omitted, and the preparation speed of the silicon dioxide powder is accelerated;
2. meanwhile, the powder is in a relatively dispersed state, so that the contact area of the whole powder and hot air is large, the efficiency of roasting the powder is further improved, and the powder has relatively quick motion with the hot air in the process of falling from a high place, so that the roasting effect of the powder is further improved;
3. the mesh on the dispersing cylinder is divided into the first mesh and the second mesh with different apertures, and the first mesh with the larger aperture is always positioned above the second mesh, so that when powder passes through the dispersing cylinder in the falling process, the powder firstly passes through the first mesh with the larger aperture and then passes through the second mesh with the smaller aperture, and by grading dispersion, larger powder aggregated particles are prevented from blocking the smaller aperture, and the dispersing effect is improved;
4. through setting up first magnet on the baffle, set up the second magnet on a dispersion section of thick bamboo for a roll section of thick bamboo drives baffle pivoted in-process, and the effort of baffle to a dispersion section of thick bamboo constantly cuts off between repelling and attracting, makes a dispersion section of thick bamboo produce the vibration in circular orbit, thereby makes the better process mesh of silica powder.
Drawings
FIG. 1 is a schematic structural diagram of a calcination and dispersion integrated device for preparing nano-silica powder according to the present invention;
FIG. 2 is a schematic structural diagram of a dispersing assembly of a calcination and dispersion integrated device for preparing nano-silica powder according to the present invention;
fig. 3 is an enlarged view of a structure a in fig. 2.
In the figure: 1 roasting furnace body, 2 dispersion components, 21 rolling cylinders, 22 circular tracks, 23 partition plates, 231 first magnets, 232 rotating rollers, 24 roasting spaces, 25 dispersion cylinders, 251 first meshes, 252 second meshes, 253 second magnets, 3 supporting components, 31 supporting rods, 32 rotating wheels, 4 transmission components, 41 worms, 42 worm wheels, 5 driving components, 51 mounting pipes, 52 wind wheels, 53 pressure valves, 6 circulation components, 61 air outlet pipes, 62 cooling boxes, 63 liquid return pipes and 64 one-way valves.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to 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", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 to 3, a calcination and dispersion integrated device for preparing nano silica powder includes:
the roasting furnace body 1, when working, the interior of the roasting furnace body 1 is in a high-temperature state, and the nano silicon dioxide powder is placed in the roasting furnace body 1 for roasting;
a dispersion assembly 2, the dispersion assembly 2 is arranged in the roasting furnace body 1 and is used for performing dispersion treatment on the nano silicon dioxide powder, the dispersion assembly 2 comprises a rolling cylinder 21, partition plates 23 and a dispersion cylinder 25, the rolling cylinder 21 is rotatably arranged in the roasting furnace body 1, the partition plates 23 are fixedly arranged on the inner wall of the rolling cylinder 21, the dispersion cylinder 25 is provided with a plurality of meshes penetrating through the cylinder wall and is arranged in the rolling cylinder 21, and the rolling cylinder 21 is divided into a plurality of roasting spaces 24 by the partition plates 23 and the dispersion cylinder 25;
the driving component 5 is configured inside the roasting furnace body 1, and is used for driving the rolling barrel 21 to rotate;
the transmission component 4 is arranged in the roasting furnace body 1, and the driving component 5 drives the rolling barrel 21 to rotate through the transmission component 4;
in the embodiment applying the technical scheme, during the roasting work, the silicon dioxide powder is placed in the roasting space 24 in the rolling cylinder 21, and the silicon dioxide powder is roasted at high temperature in the roasting furnace body 1; meanwhile, the driving component 5 drives the rolling barrel 21 to rotate through the transmission component 4, when the rolling barrel 21 rotates, the powder in the roasting space 24 is driven to move circumferentially through the action of the partition plate 23, when the powder rises to a moving height, the powder starts to fall under the action of self gravity, the powder sequentially passes through the meshes on the upper wall and the lower wall of the dispersing barrel 25 in the falling process and finally falls into the roasting space 24 below, the meshes have a dispersing effect on the powder, and meanwhile, the impact generated in the falling process also has a dispersing effect, so that the powder is in a continuous rolling and dispersing motion state in the roasting process, and the phenomenon that the powder is gradually agglomerated in the roasting process is avoided; meanwhile, the powder is in a relatively dispersed state, so that the contact area of the whole powder with hot air is large, the powder roasting efficiency is accelerated, and the powder falls from a high place and has relatively quick relative motion with the hot air, so that the roasting effect of the powder is further improved.
In the preferred technical scheme of this embodiment, the driving assembly 5 includes an installation pipe 51, a wind wheel 52 and a pressure valve 53, the installation pipe 51 is vertically and fixedly disposed inside the roasting furnace body 1, and the upper end of the installation pipe 51 is communicated with the outside of the roasting furnace body 1, the wind wheel 52 is rotatably disposed inside the upper end of the installation pipe 51, the pressure valve 53 is disposed inside the installation pipe 51 and below the wind wheel 52, the installation pipe 51 is filled with liquid, the boiling point of the liquid is lower than the roasting temperature and is below the pressure valve 53, and the wind wheel 52 is connected with the rolling cylinder 21 through the transmission assembly 4; in the roasting process, liquid in the installation pipe 51 reaches a boiling point and is rapidly gasified and evaporated to generate a large amount of gas, the pressure intensity in the installation pipe 51 is increased, when the pressure intensity reaches the threshold value of the pressure valve 53, the pressure valve 53 is opened, a large amount of steam in a short time passes through the pressure valve 53 and rushes over the wind wheel 52 to drive the wind wheel 52 to rotate, so that the wind wheel 52 drives the rolling cylinder 21 to rotate through the transmission component 4, the pressure valve 53 is periodically opened to drive the rolling cylinder 21 to periodically rotate, and the high-temperature heat in the roasting furnace body 1 is utilized to directly drive the rolling cylinder 21 to rotate; according to a further specific technical scheme, the transmission assembly 4 comprises a worm 41 and a worm wheel 42, the worm 41 is rotatably arranged on the mounting pipe 51, the wind wheel 52 is fixedly sleeved on the worm 41, the worm wheel 42 is fixedly sleeved on the rolling cylinder 21, and the worm 41 is meshed with the worm wheel 42; in operation, the wind wheel 52 drives the worm 41 to rotate, and further drives the worm wheel 42 to rotate, thereby driving the rolling cylinder 21 to rotate.
In an optional technical solution in this embodiment, the roasting and dispersing integrated apparatus further includes a supporting component 3, the supporting component 3 is used for supporting the dispersing component 2, specifically, the supporting component 3 includes a supporting rod 31 and a rotating wheel 32, the supporting rod 31 is fixedly disposed on the bottom wall of the roasting furnace body 1, and the rotating wheel 32 is rotatably disposed at the upper end of the supporting rod 31 and is in rolling contact with the rolling cylinder 21, so that the rolling cylinder 21 rotates more stably.
In an optional technical solution in this embodiment, the roasting and dispersing integrated apparatus further includes a circulation component 6, and the circulation component 6 is used for cooling the liquid in the circulation installation pipe 51; specifically, the circulating assembly 6 comprises an air outlet pipe 61, a cooling box 62 and a liquid return pipe 63, the cooling box 62 is arranged outside the roasting furnace body 1, the upper end of the installation pipe 51 is communicated with the upper end of the cooling box 62 through the air outlet pipe 61, the lower end of the cooling box 62 is communicated with the lower end of the installation pipe 51 through the liquid return pipe 63, a check valve 64 is arranged in the liquid return pipe 63, and the check valve 64 is communicated with the installation pipe 51 through the cooling box 62; the steam generated by the liquid is cooled in the air outlet pipe 61, and the liquefied liquid flows back to the installation through the liquid return pipe 63, so that the cyclic utilization of the liquid is realized.
In the preferred technical scheme of the embodiment, the plurality of partition plates 23 are uniformly distributed along the circumferential direction of the rolling cylinder 21 and extend along the radial direction of the rolling cylinder 21, one end of each partition plate 23, which is far away from the rolling cylinder 21, forms a circular track 22 concentric with the rolling cylinder 21, the dispersing cylinder 25 is rotationally arranged in the circular track 22, the end part of each partition plate 23 is in sliding contact with the dispersing cylinder 25, the mass of the lower semicircle of the dispersing cylinder 25 is greater than that of the upper semicircle, the side wall of the upper semicircle is provided with a first mesh 251, the side wall of the lower semicircle is provided with a second mesh 252, and the aperture of the first mesh 251 is greater than that of the second mesh 252; when the rolling cylinder 21 rotates, the dispersing cylinder 25 is rotationally arranged in the circular track 22, so that the dispersing cylinder 25 cannot rotate along with the rolling cylinder 21, and the side with larger mass of the dispersing cylinder 25 is stably positioned below, so that when powder passes through the dispersing cylinder 25 in the falling process, the powder firstly passes through the first mesh 251 with larger aperture and then passes through the second mesh 252 with smaller aperture, and by means of grading dispersion, larger powder aggregated particles are prevented from blocking the smaller aperture, and the dispersing effect is improved; in a more preferable embodiment, a rotating roller 232 is rotatably disposed at one end of the partition 23 close to the dispersing cylinder 25, and the rotating roller 232 is in rolling contact with the dispersing cylinder 25 to reduce the friction between the end of the partition 23 and the dispersing cylinder 25.
In the preferred technical solution of this embodiment, the diameter of the dispersing cylinder 25 is smaller than the diameter of the circular track 22, one end of the partition plate 23 close to the dispersing cylinder 25 is embedded with the first magnet 231, the side wall of the dispersing cylinder 25 is fixedly provided with the plurality of second magnets 253, the plurality of second magnets 253 and the plurality of first magnets 231 are located on the same vertical plane, the magnetic poles of two adjacent second magnets 253 are distributed oppositely, that is, the acting forces between the first magnet 231 and two adjacent second magnets 253 are opposite; in the process that the rolling cylinder 21 drives the partition plate 23 to rotate, the acting force of the partition plate 23 on the dispersing cylinder 25 is continuously cut off between repulsion and attraction, so that the dispersing cylinder 25 generates vibration in the circular track 22, and the silicon dioxide powder body passes through the meshes better.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The utility model provides a integrative device of calcination dispersion for preparation of nanometer silica powder which characterized in that, integrative device of calcination dispersion includes:
the interior of the roasting furnace body (1) is in a high-temperature state during working, and the nano silicon dioxide powder is placed in the roasting furnace body (1) for roasting;
the dispersion assembly (2) is arranged inside the roasting furnace body (1) and used for performing dispersion treatment on the nano silicon dioxide powder, the dispersion assembly (2) comprises a rolling cylinder (21), partition plates (23) and a dispersion cylinder (25), the rolling cylinder (21) is rotatably arranged inside the roasting furnace body (1), the partition plates (23) are fixedly arranged on the inner wall of the rolling cylinder (21), the dispersion cylinder (25) is provided with a plurality of meshes penetrating through the cylinder wall and arranged inside the rolling cylinder (21), and the rolling cylinder (21) is divided into a plurality of roasting spaces (24) by the partition plates (23) and the dispersion cylinder (25);
the device comprises a driving component (5) and a transmission component (4), wherein the driving component (5) is arranged in a roasting furnace body (1) and used for driving a rolling cylinder (21) to rotate, the transmission component (4) is arranged in the roasting furnace body (1), the driving component (5) drives the rolling cylinder (21) to rotate through the transmission component (4), the driving component (5) comprises a mounting pipe (51), a wind wheel (52) and a pressure valve (53), the mounting pipe (51) is vertically and fixedly arranged in the roasting furnace body (1), the upper end of the mounting pipe is communicated with the outside of the roasting furnace body (1), the wind wheel (52) is rotatably arranged in the upper end of the mounting pipe (51), the pressure valve (53) is arranged in the mounting pipe (51) and is positioned below the wind wheel (52), liquid is filled in the mounting pipe (51), and the boiling point of the liquid is lower than the roasting temperature, the wind wheel (52) is connected with the rolling cylinder (21) through a transmission assembly (4) and is positioned below the pressure valve (53);
the plurality of partition plates (23) are uniformly distributed along the circumferential direction of the rolling cylinder (21) and extend along the radial direction of the rolling cylinder (21), one end, far away from the rolling cylinder (21), of each partition plate (23) forms a circular track (22) concentric with the rolling cylinder (21), the dispersing cylinder (25) is rotatably arranged in the circular track (22), the end part of each partition plate (23) is in sliding contact with the dispersing cylinder (25), the mass of the lower semicircle of the dispersing cylinder (25) is larger than that of the upper semicircle, the side wall of the upper semicircle is provided with a first mesh (251), the side wall of the lower semicircle is provided with a second mesh (252), and the aperture of the first mesh (251) is larger than that of the second mesh (252);
the diameter of the dispersing cylinder (25) is smaller than that of the circular track (22), a first magnet (231) is embedded at one end, close to the dispersing cylinder (25), of the partition plate (23), a plurality of second magnets (253) are fixedly arranged on the side wall of the dispersing cylinder (25), the second magnets (253) and the first magnets (231) are located on the same vertical plane, and the magnetic poles of the two adjacent magnets (253) are distributed oppositely.
2. The calcination and dispersion integrated device for preparing nano silica powder according to claim 1, wherein the transmission assembly (4) comprises a worm (41) and a worm wheel (42), the worm (41) is rotatably arranged on the mounting pipe (51), the wind wheel (52) is fixedly sleeved on the worm (41), the worm wheel (42) is fixedly sleeved on the rolling cylinder (21), and the worm (41) is meshed with the worm wheel (42).
3. The integrated roasting and dispersing device for preparing nano silica powder according to claim 1, further comprising:
a support assembly (3), the support assembly (3) being for supporting the dispersion assembly (2).
4. The calcination and dispersion integrated device for preparing nano silica powder according to claim 3, wherein the support assembly (3) comprises a support rod (31) and a rotating wheel (32), the support rod (31) is fixedly arranged on the bottom wall of the calcination furnace body (1), and the rotating wheel (32) is rotatably arranged at the upper end of the support rod (31) and is in rolling contact with the rolling cylinder (21).
5. The integrated roasting and dispersing device for preparing nano silica powder according to claim 1, further comprising:
a circulation assembly (6), the circulation assembly (6) being for cooling the liquid within the circulation installation pipe (51).
6. The calcination and dispersion integrated device for preparing nano-silica powder according to claim 5, wherein the circulation component (6) comprises an air outlet pipe (61), a cooling box (62) and a liquid return pipe (63), the cooling box (62) is arranged outside the calcination furnace body (1), the upper end of the installation pipe (51) is communicated with the upper end of the cooling box (62) through the air outlet pipe (61), the lower end of the cooling box (62) is communicated with the lower end of the installation pipe (51) through the liquid return pipe (63), a check valve (64) is arranged in the liquid return pipe (63), and the check valve (64) is communicated with the installation pipe (51) through the cooling box (62).
7. The calcination-dispersion integrated apparatus for preparing nano silica powder according to claim 1, wherein a rotating roller (232) is rotatably disposed at one end of the partition plate (23) close to the dispersion cylinder (25), and the rotating roller (232) is in rolling contact with the dispersion cylinder (25).
Priority Applications (1)
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