CN114653326A - Liquid phase method for preparing nano SiO2Chemical synthesis equipment for powder - Google Patents

Liquid phase method for preparing nano SiO2Chemical synthesis equipment for powder Download PDF

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Publication number
CN114653326A
CN114653326A CN202210292982.0A CN202210292982A CN114653326A CN 114653326 A CN114653326 A CN 114653326A CN 202210292982 A CN202210292982 A CN 202210292982A CN 114653326 A CN114653326 A CN 114653326A
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wall
fixedly connected
cylinder
drum
powder
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CN114653326B (en
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张洁
徐之山
王琪皓
王婷
周晓瑜
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Xuzhou College of Industrial Technology
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Xuzhou College of Industrial Technology
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J4/00—Feed or outlet devices; Feed or outlet control devices
    • B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
    • 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
    • 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
    • C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof

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  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nanotechnology (AREA)
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  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
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  • Condensed Matter Physics & Semiconductors (AREA)
  • Inorganic Chemistry (AREA)
  • Silicon Compounds (AREA)
  • Crushing And Grinding (AREA)

Abstract

The invention belongs to the technical field of chemical equipment, and particularly relates to a method for preparing nano SiO by a liquid phase method2Chemical synthesis equipment of powder to the problem that prior art exists, now provides following scheme, including outer barrel, the top outer wall fixedly connected with top dish of outer barrel, and the side inner wall of outer barrel rotates and is connected with interior rotary drum, the side outer wall top fixedly connected with transmission shell of outer barrel, and the bottom outer wall fixedly connected with of transmission shell is used for driving interior rotary drum pivoted driving motor, and the inside of adversion section of thick bamboo is provided with four at least annular evenly distributed's whereabouts reaction mechanism, whereabouts reaction mechanism includes the horizontal of at least three upper and lower evenly distributed's fixed connection in interior rotary drum side inner wallAnd (7) a barrel. Compared with the mode of directly adding the silicon halide into the solution and then stirring for reaction in the prior art, the stirring mode in the invention can ensure that the silicon halide is fully contacted with the solution, thereby improving the reaction efficiency.

Description

Liquid phase methodPreparing nano SiO2Chemical synthesis equipment for powder
Technical Field
The invention relates to the technical field of chemical equipment, in particular to a method for preparing nano SiO by a liquid phase method2Chemical synthesis equipment of powder.
Background
SiO2That is, silica is an inorganic substance, and silicon atoms and oxygen atoms are arranged in long-range order to form crystalline silica, and in short-range order or long-range disorder to form amorphous silica. In a silicon dioxide crystal, silicon atoms are located at the center of a regular tetrahedron, four oxygen atoms are located at the four corners of the regular tetrahedron, and many of these tetrahedrons are connected by oxygen atoms at the corners, each oxygen atom is common to two tetrahedrons, i.e., each oxygen atom is bonded to two silicon atoms.
In the process of nano SiO2In the preparation of the powder, a liquid phase method is usually adopted for preparation, namely, after a fluorine-containing ion solution and a deionized water solution are added into a reactor, a silicon halide is added for reaction, and then filtration is carried out to obtain the silicon dioxide powder.
Disclosure of Invention
Based on the technical problems in the prior art, the invention provides a liquid phase method for preparing nano SiO2Chemical synthesis equipment of powder.
The invention provides a liquid phase method for preparing nano SiO2Chemical synthesis equipment of powder, including outer barrel, the top outer wall fixedly connected with top dish of outer barrel, and the side inner wall of outer barrel rotates and is connected with interior rotary drum, the side outer wall top fixedly connected with transmission shell of outer barrel, the bottom outer wall fixedly connected with of transmission shell is used for driving interior rotary drum pivoted driving motor, and the inside of adversion is provided with four at least annular evenly distributed's whereaboutsThe reaction mechanism, whereabouts reaction mechanism includes the horizontal section of thick bamboo of at least three upper and lower evenly distributed's fixed connection in interior rotary drum side inner wall, and fixedly connected with evenly distributed between per two upper and lower adjacent horizontal section of thick bamboo with the communicating standpipe of horizontal section of thick bamboo, the side outer wall of horizontal section of thick bamboo is opened has evenly distributed's drain hole, the top of standpipe is provided with feed mechanism, the top outer wall fixedly connected with top carousel of interior rotary drum.
Preferably, the feeding mechanism comprises a grinding barrel fixedly connected to the top end of the uppermost vertical pipe and communicated with the vertical pipe, a discharging groove is formed in the outer wall of the top turntable above the grinding barrel, a discharging shell is connected between the inner wall of the side face of the discharging groove and the outer wall of the top of the grinding barrel, a feeding groove with the same size as the discharging groove is formed in the outer wall of the top plate, and a hopper fixedly connected to the outer wall of the top plate is arranged above the feeding groove.
Preferably, the inner wall of the side surface of the crushing cylinder and the inner wall of the side surface of the transverse cylinder are both connected with a rotating shaft through bearings, one end of the rotating shaft extends to the outer side of the inner rotating cylinder, the inner wall of the side surface of the outer cylinder body, which is positioned at one end of the rotating shaft, is provided with a ring groove, the inner wall of the bottom of the ring groove is provided with a gear ring, and the end part of the rotating shaft is fixedly connected with a rolling gear meshed with the gear ring.
Preferably, the outer wall of the side surface of the rotating shaft positioned in the transverse cylinder is fixedly connected with annular and uniformly distributed paddle boards, and the inner wall of the side surface of the transverse cylinder is fixedly connected with a screen.
Preferably, the outer wall of the side of the rotating shaft inside the crushing barrel is fixedly connected with the crushing roller, the outer wall of the side of the crushing roller between every two vertical pipes is provided with an inwards concave material guiding section, and the inner wall of the side of the crushing barrel is provided with material guiding and crushing blocks matched with the material guiding section.
Preferably, the outer wall of the bottom of the inner rotary drum and the outer wall of the bottom of the outer drum are provided with communicated liquid discharge holes, a liquid discharge valve is connected below the liquid discharge holes in the bottom of the outer drum, the other end of the liquid discharge valve is connected with a liquid outlet pipe, the other end of the liquid outlet pipe is connected with a liquid discharge pump, and a liquid discharge section of the liquid discharge pump is connected with a liquid discharge pipe.
Preferably, the inner drum is fixedly connected with a bottom drum on the inner wall of the bottom part above the liquid discharge hole, the outer wall of the top part of the bottom drum is fixedly connected with an intermediate drum, the intermediate drum is of a cylindrical structure with holes, the inner wall of the side surface of the bottom drum is fixedly connected with a propeller blade, and the outer wall of the side surface of the bottom drum is provided with a lower liquid guide hole.
Preferably, the bottom of the inner side wall of the middle cylinder is fixedly connected with a middle liquid guide tube, the inner side wall of the middle cylinder, which is positioned above the bottom end of the middle liquid guide tube, is fixedly connected with a filter screen, the top outer wall of the top disc and the top outer wall of the top rotary disc are provided with material lifting holes which are communicated, the top end of the middle cylinder extends to the inside of the material lifting holes, and a material lifting mechanism is arranged between the middle liquid guide tube and the middle cylinder.
Preferably, the material lifting mechanism comprises a cover block, a lifting handle is fixedly connected to the outer wall of the top of the cover block, a lifting block is fixedly connected to the outer wall of the bottom of the cover block, a lifting rod is fixedly connected to the outer wall of the bottom of the lifting block, and a bag shell located at the bottom of the middle liquid guide tube is fixedly connected to the bottom end of the lifting rod.
The beneficial effects of the invention are as follows: through setting up horizontal section of thick bamboo and standpipe, including the inside of rotary drum set up horizontal section of thick bamboo and standpipe, can drive interior rotary drum through driving motor and rotate, and then can make the silicon halide intermittent type nature in the hopper enter into horizontal section of thick bamboo and standpipe, the rotation of rethread interior rotary drum makes the silicon halide who falls into in the horizontal section of thick bamboo react with the solution in the interior rotary drum, it compares in prior art and directly adds the silicon halide to the solution in and stir the mode of reaction again, stirring mode in the invention can make silicon halide fully contact with solution, the efficiency of reaction is improved.
Drawings
FIG. 1 shows a liquid phase method for preparing nano SiO2The whole structure of the chemical synthesis equipment of the powder is partially cut;
FIG. 2 shows a liquid phase method for preparing nano SiO2A cross sectional view of the lateral structure of the transverse cylinder of the chemical synthesis equipment of the powder;
FIG. 3 shows a liquid phase method for preparing nano SiO2A top turntable structure schematic diagram of powder chemical synthesis equipment;
FIG. 4 shows a liquid phase method for preparing nano SiO2Powder bodyThe structural schematic diagram of the crushing roller of the chemical synthesis equipment is shown;
FIG. 5 shows a liquid phase method for preparing nano SiO2A gear ring structure schematic diagram of powder chemical synthesis equipment;
FIG. 6 shows a liquid phase method for preparing nano SiO2A schematic structural diagram of a bottom cylinder of a chemical synthesis device for powder;
FIG. 7 shows a liquid phase method for preparing nano SiO2The cover block structure of the chemical synthesis equipment for the powder is shown schematically.
In the figure: the device comprises an outer barrel body 1, a top rotating disk 2, a hopper 3, a cover block 4, a top disk 5, a transmission shell 6, a driving motor 7, a liquid discharge pipe 8, a liquid discharge pump 9, a liquid discharge pipe 10, a middle barrel 11, a transverse barrel 12, a vertical barrel 13, a paddle plate 14, a rotating shaft 15, a liquid guide hole 16, a screen 17, an inner rotating barrel 18, a grinding barrel 19, a feeding trough 20, a material lifting hole 22, a material discharging trough 23, a material discharging shell 24, a grinding roller 25, a material guide section 26, a material guide grinding fragment 27, a rolling gear 28, a ring groove 29, a gear ring 30, a liquid discharge valve 31, a propeller blade 32, a bottom barrel 33, a filter screen 34, a middle liquid guide pipe 35, a shell 36, a liquid guide hole 37, a lifting rod 38 and a lifting block 39.
Detailed Description
Example 1
Referring to FIG. 1, a liquid phase method for preparing nano SiO2The chemical synthesis equipment of the powder comprises an outer cylinder body 1, wherein the outer wall of the top part of the outer cylinder body 1 is fixedly connected with a top disc 5, an inner rotary drum 18 is rotatably connected to the inner wall of the side surface of the outer drum body 1, a transmission shell 6 is fixedly connected to the top of the outer wall of the side surface of the outer drum body 1, a driving motor 7 for driving the inner rotary drum 18 to rotate is fixedly connected to the outer wall of the bottom of the transmission shell 6, at least four annular falling reaction mechanisms which are uniformly distributed are arranged inside the inner rotary drum 18, each falling reaction mechanism comprises at least three transverse drums 12 which are uniformly distributed from top to bottom and fixedly connected to the inner wall of the side surface of the inner rotary drum 18, and a vertical pipe 13 which is uniformly distributed and communicated with the horizontal cylinder 12 is fixedly connected between every two vertical adjacent horizontal cylinders 12, liquid guide holes 16 which are uniformly distributed are formed in the outer wall of the side surface of each horizontal cylinder 12, a feeding mechanism is arranged at the top end of each vertical pipe 13, and a top rotary table 2 is fixedly connected to the outer wall of the top of each inner rotary cylinder 18.
In the present invention, referring to fig. 3, the feeding mechanism comprises a crushing cylinder 19 fixedly connected to the top end of the uppermost vertical pipe 13 and communicated with the vertical pipe 13, a discharging chute 23 is formed on the top outer wall of the top rotary table 2 above the crushing cylinder 19, a discharging shell 24 is connected between the inner wall of the side surface of the discharging chute 23 and the top outer wall of the crushing cylinder 19, a feeding chute 20 having the same size as the discharging chute 23 is formed on the top outer wall of the top disc 5, and a hopper 3 fixedly connected to the top outer wall of the top disc 5 is arranged above the feeding chute 20.
Referring to fig. 5, the inner side wall of the grinding cylinder 19 and the inner side wall of the transverse cylinder 12 are connected with a rotating shaft 15 through bearings, one end of the rotating shaft 15 extends to the outer side of the inner rotating cylinder 18, the inner side wall of the outer cylinder 1 at one end of the rotating shaft 15 is provided with a ring groove 29, the inner bottom wall of the ring groove 29 is provided with a gear ring 30, and the end of the rotating shaft 15 is fixedly connected with a rolling gear 28 engaged with the gear ring 30.
Referring to fig. 2, paddles 14 are fixedly connected to the outer side wall of the rotating shaft 15 inside the horizontal cylinder 12, and are uniformly distributed in a ring shape, and a screen 17 is fixedly connected to the inner side wall of the horizontal cylinder 12.
Referring to fig. 1, wherein, the outer wall of the bottom of the inner rotating drum 18 and the outer wall of the bottom of the outer cylinder 1 are provided with a liquid discharge hole, a liquid discharge valve 31 is connected below the liquid discharge hole at the bottom of the outer cylinder 1, the other end of the liquid discharge valve 31 is connected with a liquid discharge pipe 10, the other end of the liquid discharge pipe 10 is connected with a liquid discharge pump 9, and the liquid discharge section of the liquid discharge pump 9 is connected with a liquid discharge pipe 8.
When the invention is used: adding a fluorine-containing ion solution and deionized water into an inner rotary drum 18, then pouring silicon halide particles into a hopper 3, then starting a driving motor 7 to drive the inner rotary drum 18 to rotate, when the inner rotary drum 18 rotates, when a blanking groove 23 rotates to the lower part of a feeding groove 20, the silicon halide particles in the hopper 3 fall into a grinding drum 19 from the feeding groove 20 and then fall through a vertical pipe 13 in a dispersing way, when the silicon halide particles fall into a transverse drum 12, the fluorine-containing ion solution passes through the inner part of the transverse drum 12 through a liquid guide hole 16 due to the rotation of the inner rotary drum 18 and then reacts with the silicon halide particles in the transverse drum 12 to generate silicon dioxide precipitates, and simultaneously, a rotating shaft 15 is driven to rotate through the meshing of a rolling gear 28 and a gear ring 30 to drive a paddle plate 14 to rotate, so that the reaction efficiency of the solution flow in the transverse drum 12 and the silicon halide can be further improved through the rotation of the paddle plate 14, the screen 17 can prevent that the unreacted silicon halide granule of large granule from discharging by drain 16, and then unreacted large granule silicon halide then can fall and enter into next horizontal section of thick bamboo 12 by standpipe 13 below horizontal section of thick bamboo 12 and continue to react, and the back that reacts finishes, opens flowing back valve 31 and can take out the mixed solution and carry out follow-up filtration processing through flowing back pump 9.
Example 2
Liquid phase method for preparing nano SiO2The chemical synthesis equipment for the powder comprises an outer cylinder body 1, wherein the outer wall of the top part of the outer cylinder body 1 is fixedly connected with a top disc 5, an inner rotary drum 18 is rotatably connected to the inner wall of the side surface of the outer drum body 1, a transmission shell 6 is fixedly connected to the top of the outer wall of the side surface of the outer drum body 1, a driving motor 7 for driving the inner rotary drum 18 to rotate is fixedly connected to the outer wall of the bottom of the transmission shell 6, at least four annular falling reaction mechanisms which are uniformly distributed are arranged inside the inner rotary drum 18, each falling reaction mechanism comprises at least three transverse drums 12 which are uniformly distributed from top to bottom and fixedly connected to the inner wall of the side surface of the inner rotary drum 18, and a vertical pipe 13 which is uniformly distributed and communicated with the horizontal cylinder 12 is fixedly connected between every two vertical adjacent horizontal cylinders 12, liquid guide holes 16 which are uniformly distributed are formed in the outer wall of the side surface of each horizontal cylinder 12, a feeding mechanism is arranged at the top end of each vertical pipe 13, and a top rotary table 2 is fixedly connected to the outer wall of the top of each inner rotary cylinder 18.
In the invention, the feeding mechanism comprises a grinding barrel 19 fixedly connected to the top end of the uppermost vertical pipe 13 and communicated with the vertical pipe 13, a discharging groove 23 is formed in the outer wall of the top part of the top rotary table 2 above the grinding barrel 19, a discharging shell 24 is connected between the inner wall of the side surface of the discharging groove 23 and the outer wall of the top part of the grinding barrel 19, a feeding groove 20 with the same size as the discharging groove 23 is formed in the outer wall of the top part of the top disc 5, and a hopper 3 fixedly connected to the outer wall of the top part of the top disc 5 is arranged above the feeding groove 20.
Wherein, the inner wall of the side of the grinding cylinder 19 and the inner wall of the side of the horizontal cylinder 12 are both connected with a rotating shaft 15 through bearings, one end of the rotating shaft 15 extends to the outer side of the inner rotating cylinder 18, the inner wall of the side of the outer cylinder 1 at one end of the rotating shaft 15 is provided with a ring groove 29, the inner wall of the bottom of the ring groove 29 is provided with a gear ring 30, and the end part of the rotating shaft 15 is fixedly connected with a rolling gear 28 meshed with the gear ring 30.
Wherein, the outer wall of the side of the rotating shaft 15 inside the horizontal cylinder 12 is fixedly connected with the annular evenly distributed paddle boards 14, and the inner wall of the side of the horizontal cylinder 12 is fixedly connected with the screen 17.
Wherein, the outer wall of the bottom of the inner rotary drum 18 and the outer wall of the bottom of the outer cylinder body 1 are provided with communicated liquid discharge holes, the lower part of the liquid discharge hole at the bottom of the outer cylinder body 1 is connected with a liquid discharge valve 31, the other end of the liquid discharge valve 31 is connected with a liquid discharge pipe 10, the other end of the liquid discharge pipe 10 is connected with a liquid discharge pump 9, and the liquid discharge section of the liquid discharge pump 9 is connected with a liquid discharge pipe 8;
referring to fig. 4, a crushing roller 25 is fixedly connected to the outer side wall of the rotating shaft 15 inside the crushing cylinder 19, a material guiding section 26 which is recessed inwards is arranged on the outer side wall of the crushing roller 25 between every two vertical pipes 13, and material guiding crushing blocks 27 which are matched with the material guiding section 26 are arranged on the inner side wall of the crushing cylinder 19.
When the invention is used: adding a fluorine-containing ion solution and deionized water into an inner rotary drum 18, then pouring silicon halide particles into a hopper 3, then starting a driving motor 7 to drive the inner rotary drum 18 to rotate, when the inner rotary drum 18 rotates, whenever a discharging groove 23 rotates to the lower part of a feeding groove 20, the silicon halide particles in the hopper 3 fall into a grinding cylinder 19 from the feeding groove 20, when the silicon halide falls into the grinding cylinder 19 from the discharging groove 23, a rotating shaft 15 rotates to drive a grinding roller 25 to rotate, then grinding the silicon halide particles, so that the silicon halide forms smaller particles, the efficiency of subsequent chemical reaction is improved, then the silicon halide particles fall through a vertical pipe 13 in a dispersing way, when the silicon halide particles fall into a transverse pipe 12, due to the rotation of the inner rotary drum 18, the fluorine-containing ion solution passes through the inner part of the transverse pipe 12 through a liquid guide hole 16 and then reacts with the silicon halide particles in the transverse pipe 12 to generate silicon dioxide precipitates, meanwhile, the rotating shaft 15 is driven to rotate through the meshing of the rolling gear 28 and the gear ring 30, the paddle board 14 is driven to rotate, the reaction efficiency of solution flow inside the transverse cylinder 12 and silicon halide can be further improved through the rotation of the paddle board 14, the screen 17 can prevent large unreacted silicon halide particles from being discharged from the liquid guide hole 16, then the unreacted large silicon halide particles can fall down from the vertical pipe 13 below the transverse cylinder 12 and enter the next transverse cylinder 12 for continuous reaction until the silicon halide reaction is finished, and after the reaction is finished, the liquid discharge valve 31 is opened, so that the mixed solution can be pumped out through the liquid discharge pump 9 and subjected to subsequent filtration treatment.
Example 3
Liquid phase method for preparing nano SiO2The chemical synthesis equipment for the powder comprises an outer cylinder body 1, wherein the outer wall of the top part of the outer cylinder body 1 is fixedly connected with a top disc 5, and the inner wall of the side surface of the outer cylinder body 1 is rotationally connected with an inner rotary cylinder 18, the top of the outer wall of the side surface of the outer cylinder body 1 is fixedly connected with a transmission shell 6, the outer wall of the bottom of the transmission shell 6 is fixedly connected with a driving motor 7 for driving the inner rotary cylinder 18 to rotate, at least four annular uniformly-distributed falling reaction mechanisms are arranged inside the inner rotary cylinder 18, each falling reaction mechanism comprises at least three transverse cylinders 12 which are uniformly distributed from top to bottom and fixedly connected with the inner wall of the side surface of the inner rotary cylinder 18, and fixedly connected with evenly distributed with the communicating standpipe 13 of horizontal section of thick bamboo 12 between per two adjacent horizontal sections 12 about, the lateral surface outer wall of horizontal section of thick bamboo 12 is opened has evenly distributed drain hole 16, the top of standpipe 13 is provided with feed mechanism, the top outer wall fixedly connected with top carousel 2 of interior rotary drum 18.
In the invention, the feeding mechanism comprises a grinding cylinder 19 fixedly connected to the top end of the uppermost vertical pipe 13 and communicated with the vertical pipe 13, a discharging groove 23 is formed in the outer wall of the top of a top rotating disc 2 above the grinding cylinder 19, a discharging shell 24 is connected between the inner wall of the side surface of the discharging groove 23 and the outer wall of the top of the grinding cylinder 19, a feeding groove 20 with the same size as the discharging groove 23 is formed in the outer wall of the top of a top disc 5, and a hopper 3 fixedly connected to the outer wall of the top disc 5 is arranged above the feeding groove 20.
Wherein, the inner wall of the side of the grinding cylinder 19 and the inner wall of the side of the horizontal cylinder 12 are both connected with a rotating shaft 15 through bearings, one end of the rotating shaft 15 extends to the outer side of the inner rotating cylinder 18, the inner wall of the side of the outer cylinder 1 at one end of the rotating shaft 15 is provided with a ring groove 29, the inner wall of the bottom of the ring groove 29 is provided with a gear ring 30, and the end part of the rotating shaft 15 is fixedly connected with a rolling gear 28 meshed with the gear ring 30.
Wherein, the outer wall of the side of the rotating shaft 15 inside the horizontal cylinder 12 is fixedly connected with the annular evenly distributed paddle boards 14, and the inner wall of the side of the horizontal cylinder 12 is fixedly connected with the screen 17.
Wherein, the outer wall of the side of the rotating shaft 15 inside the grinding cylinder 19 is fixedly connected with a grinding roller 25, the outer wall of the side of the grinding roller 25 between every two vertical pipes 13 is provided with a material guiding section 26 which is recessed inwards, and the inner wall of the side of the grinding cylinder 19 is provided with material guiding grinding fragments 27 which are matched with the material guiding section 26.
Wherein, the bottom outer wall of inner rotary drum 18 and the bottom outer wall of outer barrel 1 open and have communicating outage, and the below of the outage of outer barrel 1 bottom is connected with flowing back valve 31, and the other end of flowing back valve 31 is connected with drain pipe 10, and the other end of drain pipe 10 is connected with flowing back pump 9, and the play liquid section of flowing back pump 9 is connected with fluid-discharge tube 8.
Referring to fig. 6, a bottom tube 33 is fixedly connected to the inner wall of the bottom of the inner rotary tube 18 above the liquid discharge hole, an intermediate tube 11 is fixedly connected to the outer wall of the top of the bottom tube 33, the intermediate tube 11 is a tubular structure with holes, a propeller blade 32 is fixedly connected to the inner wall of the side of the bottom tube 33, and a lower liquid guide hole 37 is formed in the outer wall of the side of the bottom tube 33.
Referring to fig. 7, an intermediate liquid guide tube 35 is fixedly connected to the bottom of the inner side wall of the intermediate cylinder 11, a filter screen 34 is fixedly connected to the inner side wall of the intermediate cylinder 11 above the bottom end of the intermediate liquid guide tube 35, a material lifting hole 22 is formed in the outer top wall of the top plate 5 and the outer top wall of the top rotary plate 2 and communicated with each other, the top end of the intermediate cylinder 11 extends into the material lifting hole 22, and a material lifting mechanism is arranged between the intermediate liquid guide tube 35 and the intermediate cylinder 11.
The material lifting mechanism comprises a cover block 4, a lifting handle is fixedly connected to the outer wall of the top of the cover block 4, a lifting block 39 is fixedly connected to the outer wall of the bottom of the cover block 4, a lifting rod 38 is fixedly connected to the outer wall of the bottom of the lifting block 39, and a pocket shell 36 located at the bottom of the middle liquid guide tube 35 is fixedly connected to the bottom end of the lifting rod 38.
When the invention is used: adding a fluorine-containing ion solution and deionized water into an inner rotary drum 18, then pouring silicon halide particles into a hopper 3, then starting a driving motor 7 to drive the inner rotary drum 18 to rotate, when the inner rotary drum 18 rotates, whenever a discharging groove 23 rotates to the lower part of a feeding groove 20, the silicon halide particles in the hopper 3 fall into a grinding cylinder 19 from the feeding groove 20, when the silicon halide falls into the grinding cylinder 19 from the discharging groove 23, a rotating shaft 15 rotates to drive a grinding roller 25 to rotate, then grinding the silicon halide particles, so that the silicon halide forms smaller particles, the efficiency of subsequent chemical reaction is improved, then the silicon halide particles fall through a vertical pipe 13 in a dispersing way, when the silicon halide particles fall into a transverse pipe 12, due to the rotation of the inner rotary drum 18, the fluorine-containing ion solution passes through the inner part of the transverse pipe 12 through a liquid guide hole 16 and then reacts with the silicon halide particles in the transverse pipe 12 to generate silicon dioxide precipitates, meanwhile, the rotating shaft 15 is driven to rotate through the meshing of the rolling gear 28 and the gear ring 30, so as to drive the paddle board 14 to rotate, the reaction efficiency of the solution flow in the transverse cylinder 12 and the silicon halide can be further improved through the rotation of the paddle board 14, the screen 17 can prevent large unreacted silicon halide particles from being discharged from the liquid guide hole 16, then the unreacted large silicon halide particles can fall from the vertical pipe 13 below the transverse cylinder 12 and enter the next transverse cylinder 12 to be continuously reacted until the silicon halide reaction is finished, when the inner rotary cylinder 18 rotates, the middle cylinder 11 and the bottom cylinder 33 can be driven to rotate, so as to drive the propeller blades 32 to rotate, the propeller blades 32 can rotate to form an upward liquid flow, so that the mixed liquid in the inner rotary cylinder 18 is sucked in through the lower liquid guide hole 37, then enters the middle cylinder 11 and moves upward through the middle liquid guide pipe 35 until the mixed liquid in the top of the middle liquid guide pipe 35 moves to be discharged outward through the holes on the surface of the middle cylinder 11, at this moment, the silicon dioxide sediment contained in the solution is filtered by the filter screen 34 and gradually falls into the bag shell 36, after the reaction is finished, the cover block 4 is upwards pulled out to pull out the bag shell 36, and then the silicon dioxide sediment can be collected, and after the reaction is finished, the drain valve 31 is opened to draw out the mixed solution through the drain pump 9 and carry out subsequent filtering treatment.
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 (9)

1. Liquid phase method for preparing nano SiO2Chemical synthesis equipment for powder, which comprises an outer barrel (1) and is characterized in that the outer wall of the top of the outer barrel (1) is fixedly connected with a top disc (5), the inner wall of the side of the outer barrel (1) is rotatably connected with an inner rotary drum (18), the top of the outer wall of the side of the outer barrel (1) is fixedly connected with a transmission shell (6), the outer wall of the bottom of the transmission shell (6) is fixedly connected with a driving motor (7) for driving the inner rotary drum (18) to rotate, at least four annular uniformly-distributed falling reaction mechanisms are arranged inside the inner rotary drum (18), each falling reaction mechanism comprises at least three transverse drums (12) which are uniformly distributed from top to bottom and fixedly connected with the inner wall of the side of the inner rotary drum (18), vertical pipes (13) which are uniformly distributed and communicated with the transverse drums (12) are fixedly connected between every two vertical adjacent transverse drums (12), and liquid guide holes (16) which are uniformly distributed are formed in the outer wall of the side of the transverse drums (12), the top end of the vertical pipe (13) is provided with a feeding mechanism, and the outer wall of the top part of the inner rotary drum (18) is fixedly connected with a top rotary table (2).
2. The liquid phase method for preparing nano SiO according to claim 12Chemical synthesis equipment for powder, which is characterized in that the feeding mechanism comprises a grinding barrel (19) fixedly connected to the top end of a vertical pipe (13) positioned at the top and communicated with the vertical pipe (13), a top rotary table (2) is provided with a lower trough (23) on the outer wall of the top part positioned above the grinding barrel (19), a blanking shell (24) is connected between the inner wall of the side surface of the lower trough (23) and the outer wall of the top part of the grinding barrel (19), the outer wall of the top part of a top disc (5) is provided with a feeding chute (20) with the same size as the lower trough (23), and a hopper (3) fixedly connected to the outer wall of the top part of the top disc (5) is arranged above the feeding chute (20).
3. The liquid phase method for preparing nano SiO according to claim 22The chemical synthesis equipment for the powder is characterized in that the inner wall of the side surface of the crushing cylinder (19) and the inner wall of the side surface of the transverse cylinder (12) are both connected with a rotating shaft (15) through bearings, one end of the rotating shaft (15) extends to the outer side of the inner rotating cylinder (18), the inner wall of the side surface of the outer cylinder body (1) at one end of the rotating shaft (15) is provided with a ring groove (29), and the inner wall of the bottom of the ring groove (29) is provided with a ring grooveThe end part of the rotating shaft (15) is fixedly connected with a rolling gear (28) meshed with the gear ring (30).
4. The liquid phase method for preparing nano SiO according to claim 32Chemical synthesis equipment for powder is characterized in that the outer wall of the side surface of a rotating shaft (15) positioned in a transverse cylinder (12) is fixedly connected with paddles (14) which are uniformly distributed in an annular shape, and the inner wall of the side surface of the transverse cylinder (12) is fixedly connected with a screen (17).
5. The liquid phase method for preparing nano SiO according to claim 22The chemical synthesis equipment for the powder is characterized in that a grinding roller (25) is fixedly connected to the outer side wall of a rotating shaft (15) positioned inside a grinding cylinder (19), an inwards-concave material guide section (26) is arranged on the outer side wall of the grinding roller (25) positioned between every two vertical pipes (13), and material guide grinding fragments (27) matched with the material guide section (26) are arranged on the inner side wall of the grinding cylinder (19).
6. The liquid phase method for preparing nano SiO according to claim 12The chemical synthesis equipment for the powder is characterized in that the outer wall of the bottom of the inner rotary drum (18) and the outer wall of the bottom of the outer drum body (1) are provided with communicated liquid discharge holes, a liquid discharge valve (31) is connected below the liquid discharge holes in the bottom of the outer drum body (1), the other end of the liquid discharge valve (31) is connected with a liquid outlet pipe (10), the other end of the liquid outlet pipe (10) is connected with a liquid discharge pump (9), and the liquid discharge section of the liquid discharge pump (9) is connected with a liquid discharge pipe (8).
7. The liquid phase method for preparing nano SiO according to claim 62Chemical synthesis equipment for powder is characterized in that a bottom inner wall of the inner rotary drum (18) above the liquid discharge hole is fixedly connected with a bottom drum (33), a middle drum (11) is fixedly connected with the outer wall of the top of the bottom drum (33), the middle drum (11) is of a cylindrical structure with holes, a propeller blade (32) is fixedly connected with the inner wall of the side surface of the bottom drum (33), and a lower liquid guide hole (37) is formed in the outer wall of the side surface of the bottom drum (33).
8. According to claim 7The liquid phase method for preparing the nano SiO2Chemical synthesis equipment for powder is characterized in that a middle liquid guide pipe (35) is fixedly connected to the bottom of the inner side wall of a middle cylinder (11), a filter screen (34) is fixedly connected to the inner side wall of the middle cylinder (11) above the bottom end of the middle liquid guide pipe (35), communicated lifting holes (22) are formed in the outer top wall of a top disc (5) and the outer top wall of a top rotary disc (2), the top end of the middle cylinder (11) extends to the inside of the lifting holes (22), and a lifting mechanism is arranged between the middle liquid guide pipe (35) and the middle cylinder (11).
9. The liquid phase method for preparing nano SiO according to claim 82Chemical synthesis equipment of powder, its characterized in that, carry material mechanism and include cover block (4), the top outer wall fixedly connected with of cover block (4) carries the handle, and the bottom outer wall fixedly connected with of cover block (4) carries block (39), carries the bottom outer wall fixedly connected with shadoof (38) of block (39), and the bottom fixedly connected with of shadoof (38) is located pocket shell (36) of catheter (35) bottom in the middle of.
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