CN113929103A - Preparation method and application of nano-scale spherical silicon micro powder - Google Patents
Preparation method and application of nano-scale spherical silicon micro powder Download PDFInfo
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- CN113929103A CN113929103A CN202111412464.XA CN202111412464A CN113929103A CN 113929103 A CN113929103 A CN 113929103A CN 202111412464 A CN202111412464 A CN 202111412464A CN 113929103 A CN113929103 A CN 113929103A
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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
- C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
- C01B33/181—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by a dry process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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- 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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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/30—Particle morphology extending in three dimensions
- C01P2004/32—Spheres
Abstract
The invention provides a preparation method of nano spherical silicon micro powder, which is characterized by comprising the following steps: preparing solid particles of silicon carbide from a solid containing silicon carbide in a ball mill, heating and soaking the solid particles of silicon carbide by adopting inorganic dilute acid, and washing and drying the solid particles of silicon carbide treated by the dilute acid for later use; step two, sending silicon carbide solid particles into a spheroidization reaction kettle by using oxygen airflow, adjusting the pressure inside the spheroidization reaction kettle to be 0.95-1.2Mpa, adjusting the temperature inside the spheroidization reaction kettle to be 1500-; and step three, cooling the silicon dioxide powder obtained in the step three to form silicon micro powder, and then feeding the silicon micro powder into a classifier to classify according to the particle size.
Description
Technical Field
The invention belongs to the technical field of preparation of silicon micro powder preparation equipment, and particularly relates to a preparation method and application of nano spherical silicon micro powder.
Background
With the development and popularization of electronic products, the related technologies and products of motor products have been greatly increased in recent years. The electronic packaging technology is a packaging technology for high-end electronic products, and high polymer materials such as polyacrylate and the like are used as adhesives in the electronic packaging technology. However, the thermal expansion coefficient of the adhesive is greatly different from that of the substrate, so that the adhesive material and the substrate material are easily separated, and further, the product is cracked. To avoid this, it is known to add fillers to the binder material. The nano spherical silica powder is a filler with good effect and low cost.
The existing nanometer spherical silicon micropowder needs to be ground into particles by a ball mill in the preparation process, and the ground materials are ground into the silicon micropowder. The feeding port of the existing ball mill is arranged in an open manner, and because the powder in the cylinder is extremely fine, the powder in the cylinder is easy to flow out of the feeding hopper and diffuse into a workshop in the overturning process, so that dust pollution is caused; in addition, the feed hopper is inconvenient to rotate along with the barrel due to the fact that the cross section area of the feed opening of the feed hopper is large.
Disclosure of Invention
The invention provides a preparation method and application of nano-scale spherical silicon micro powder, a preparation process and preparation equipment thereof, aiming at solving the technical problems.
The technical problem of the invention is realized as follows:
a preparation method of nano spherical silicon micropowder comprises the following steps:
preparing solid particles of silicon carbide from a solid containing silicon carbide in a ball mill, heating and soaking the solid particles of silicon carbide by adopting inorganic dilute acid, and washing and drying the solid particles of silicon carbide treated by the dilute acid for later use;
step two, sending silicon carbide solid particles into a spheroidization reaction kettle by using oxygen airflow, adjusting the pressure inside the spheroidization reaction kettle to be 0.95-1.2Mpa, adjusting the temperature inside the spheroidization reaction kettle to be 1500-;
and step three, cooling the silicon dioxide powder obtained in the step three to form silicon micro powder, and then feeding the silicon micro powder into a classifier to classify according to the particle size.
The invention also provides nanoscale spherical silicon micropowder which is prepared from the following components in parts by mass: 30-45 parts of diatomite, 40-50 parts of quartz sand, 20-35 parts of rice hull and 25-35 parts of fly ash.
The invention also provides application of the nano spherical silicon micro powder, and the nano spherical silicon micro powder is used for electronic packaging materials.
The invention also provides a preparation device of the nano spherical silicon micro powder, which comprises a cylinder, a feeding pipe, a driving motor, a reducer, a large gear and a driving gear; the preparation equipment also comprises a feeding assembly, a sealing cover and a limiting assembly;
one end of the cylinder body is fixedly connected with a feeding pipe, the other end of the cylinder body is fixedly connected with a discharging pipe I, and one end of the cylinder body, which is close to the feeding pipe, is fixedly sleeved with a large gear; the driving motor is fixedly connected with the reducer in a transmission manner, the reducer is fixedly connected with the driving shaft of the driving gear in a transmission manner, and the driving gear is meshed with the large gear;
the feeding assembly comprises a feeding hopper and a discharging pipe II, the lower end of the feeding hopper is fixedly connected with the discharging pipe II, one end, far away from the feeding hopper, of the discharging pipe II is fixedly connected with a flange plate, one end, far away from the barrel, of the feeding pipe II is fixedly connected with the flange plate, and the discharging pipe II and the feeding pipe are fixedly connected through a pair of flange plates and bolts;
the feeding hopper comprises a fixed part and a movable part, the fixed part is fixedly connected to the top end of the discharge pipe II, and the movable part is rotatably connected to one side, away from the barrel, of the fixed part; the upper surface of the fixing part is provided with a pair of limiting components, and the limiting components are symmetrically distributed on the center line of the upper surface of the fixing part; the movable part is provided with a first fixed hook and a second fixed hook, the first fixed hook is fixedly connected to the bottom end of the movable part, and the second fixed hook is fixedly connected to the upper surface of the movable part;
the limiting assembly comprises a fixing seat, a limiting column, a sliding block, an adjusting block, a guide sleeve, a limiting plate, a pressing block and a spring, wherein a horizontal sliding groove with an opening facing the inner side of the fixing part is formed in the fixing seat, the spring capable of compressing or extending along the horizontal direction is fixedly embedded in the sliding groove, one end of the spring is fixedly connected to the bottom of the sliding groove, the sliding block is further connected to the inside of the sliding groove in a sliding mode, and the sliding block can freely slide along the sliding groove; one end of the sliding block, which is positioned in the sliding groove, is fixedly connected with the spring, one end of the sliding block, which is exposed out of the sliding groove, is fixedly connected with a limiting column, and the limiting column is horizontal; when the movable part rotates to a state of being separated from the fixed part, the first fixed hook is just hooked on the limiting column, and when the movable part rotates to a state of being clamped with the fixed part, the second fixed hook is hooked on the limiting column; the outer wall of the movable part is tightly contacted with the inside of the fixed part;
the upper surface of the fixed seat is fixedly connected with a guide sleeve, the guide sleeve is communicated with the sliding groove, the upper surface of the sliding block is provided with an adjusting groove, the bottom end of the adjusting block is fixedly connected with a limiting block, and the bottom end of the limiting block is directly contacted with the adjusting groove; the upper surface of the adjusting block is fixedly connected with a pressing block; when the adjusting block is pressed to the lowest position, the limiting column retreats under the driving of the sliding block, and the limiting column is completely separated from the first fixing hook or the second fixing hook; the pressing block is loosened, and the sliding block automatically approaches to the first fixing hook or the second fixing hook under the extrusion action of the spring until the first fixing hook or the second fixing hook is hooked on the limiting column;
the supporting sealed lid that is provided with of feeder hopper, the last fixed surface of fixed part is connected with the mounting panel that the level set up, the corresponding position of sealed lid is also fixedly connected with the mounting panel that the level set up, through a pair of mounting panel and bolt fixed connection between sealed lid and the fixed part.
In a preferred embodiment of the present invention, the movable portion and the fixed portion are fixedly connected by a connecting shaft, the movable portion is engaged with the inside of the fixed portion, the connecting shaft penetrates the fixed portion and the movable portion to be rotatably connected, and the movable portion is capable of freely rotating around the fixed portion.
As a preferable technical solution of the present invention, the inner wall of the movable portion is provided with a pair of connection sleeves, and the pair of connection sleeves are movably sleeved on the connection shaft.
As a preferred technical scheme of the present invention, the fixing portion and the barrel are fixedly connected with each other by a connecting plate, one end of the connecting plate is fixedly connected to one side of the fixing portion close to the barrel, and the other end of the connecting plate is fixedly connected to the barrel.
In a preferred embodiment of the present invention, the seal cover is engaged with the fixed portion and the movable portion when the movable portion is rotated to a state of being engaged with the fixed portion.
In a preferred embodiment of the present invention, the mounting plate fixedly connected to the fixing portion is further connected to the fixing portion by a reinforcing plate, one side of the reinforcing plate is fixedly connected to the fixing portion, and the other side of the reinforcing plate is fixedly connected to the lower surface of the mounting plate.
As a preferable aspect of the present invention, an outer side wall of the adjusting block is in close contact with an inner side wall of the guide sleeve.
Compared with the prior art, the invention has the advantages that:
1. according to the invention, the feeding assembly is arranged, so that feeding into the barrel is facilitated, and particularly, the feeding assembly is matched with a bagged feeding or barrel feeding mode. The feeding hopper plays a role in collecting materials during feeding, and the discharging pipe II plays a role in conveying materials; furthermore, the feeding hopper is provided with the movable part and the fixed part, and by adjusting the position relation between the movable part and the fixed part, when the movable part rotates to be far away from the fixed part, the feeding cross-sectional area of the upper end surface of the feeding hopper can be increased, the feeding speed is increased, and feeding is facilitated; when the device is in a crushing working state, the movable part is rotated to be clamped in the fixed part, so that the volume of the feed hopper can be reduced, and the feed hopper can conveniently rotate along with the barrel; furthermore, a pair of limiting assemblies is fixedly connected to the upper surface of the fixing portion, and separation of the first fixing hook or the second fixing hook from the limiting column can be facilitated.
2. According to the invention, the sealing cover is fixedly connected to the upper surface of the feed hopper, so that solid powder in the barrel can be prevented from escaping from the feed pipe during crushing, dust pollution is avoided, and furthermore, the support effect of the fixing part can be enhanced by arranging the connecting plate to connect the barrel and the fixing part; further, by providing the reinforcing plate, the mounting stability between the mounting plate on the fixing portion and the fixing portion can be enhanced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a process flow diagram of the preparation method of nano-scale spherical silica powder in the invention
FIG. 2 is a schematic view of a first perspective structure according to the present invention;
FIG. 3 is a schematic view of a second perspective structure of the present invention;
FIG. 4 is a schematic structural diagram of a third perspective of the present invention;
FIG. 5 is a first view of the connection structure of the feeding hopper, the discharging pipe II, the limiting component and other components;
FIG. 6 is an enlarged view of the structure at A in FIG. 5;
FIG. 7 is a second perspective view of the connection structure of the feeding hopper, the discharging pipe II, the limiting component and the like;
FIG. 8 is a schematic view showing a connection structure of the movable portion, the fixing portion and the like when the movable portion is opened according to the present invention;
FIG. 9 is a first view of the connection structure of the fixing base, the sliding block, the spring, the adjusting block, the limiting post and other components;
FIG. 10 is a second perspective view of FIG. 9;
FIG. 11 is a schematic view showing a connection structure of the sealing cap, the fixing portion, the tapping pipe, and the like;
FIG. 12 is a schematic view showing the mounting structure of the sealing cap, the fixing portion, the tapping pipe, and the like.
The device comprises a barrel 1, a feeding pipe 2, a driving motor 3, a speed reducer 4, a bull gear 5, a driving gear 6, a feeding component 7, a feeding hopper 701, a fixed part 701A, a movable part 701B, a discharging pipe two 702, a fixed hook I703, a fixed hook II 704, a connecting shaft 705, a fixed hook II 706, a sealing cover 8, a limiting component 9, a fixed seat 901, a limiting column 902, a sliding block 903, an adjusting block 904, a guide sleeve 905, a limiting plate 906, a pressing block 907, a spring 908, a sliding chute 909, an adjusting groove 910, a discharging pipe I10, an installing plate 11, a connecting plate 12 and a reinforcing plate 13.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail with reference to the accompanying drawings 1 to 12, in conjunction with the embodiments.
Example 1
As shown in fig. 1, example 1 provides a method for preparing nanoscale spherical silica micropowder, which comprises the following steps:
preparing solid particles of silicon carbide from a solid containing silicon carbide in a ball mill, heating and soaking the solid particles of silicon carbide by adopting inorganic dilute acid, and washing and drying the solid particles of silicon carbide treated by the dilute acid for later use;
feeding silicon carbide solid particles into a spheroidizing reactor by using oxygen airflow, adjusting the pressure inside the spheroidizing reactor to be 0.95Mpa, adjusting the temperature inside the spheroidizing reactor to be 1500 ℃, and burning the silicon micropowder to obtain silicon dioxide powder;
and step three, cooling the silicon dioxide powder obtained in the step three to form silicon micro powder, and then feeding the silicon micro powder into a classifier to classify according to the particle size.
The embodiment 1 also provides the nanoscale spherical silicon powder, which is prepared from the following components in parts by mass: 30 parts of diatomite, 40 parts of quartz sand, 20 parts of rice hull and 25 parts of fly ash.
one end of the cylinder body 1 is fixedly connected with a feeding pipe 2, the other end of the cylinder body 1 is fixedly connected with a discharging pipe I10, and one end of the cylinder body 1 close to the feeding pipe 2 is fixedly sleeved with a large gear 5; the driving motor 3 is fixedly connected with the speed reducer 4 in a transmission way, the speed reducer 4 is fixedly connected with a driving shaft of the driving gear 6 in a transmission way, and the driving gear 6 is meshed with the large gear 5;
the feeding assembly 7 comprises a feeding hopper 701 and a second discharging pipe 702, the lower end of the feeding hopper 701 is fixedly connected with the second discharging pipe 702, one end, far away from the feeding hopper 701, of the second discharging pipe 702 is fixedly connected with a flange plate, one end, far away from the barrel body 1, of the feeding pipe 2 is fixedly connected with the flange plate, and the second discharging pipe 702 and the feeding pipe 2 are fixedly connected through a pair of flange plates and bolts;
the feeding hopper 701 comprises a fixed part 701A and a movable part 701B, the fixed part 701A is fixedly connected to the top end of the discharge pipe II 702, the fixed part 701A is in auxiliary fixed connection with the cylinder 1 through a connecting plate 12, one end of the connecting plate 12 is fixedly connected to one side, close to the cylinder 1, of the fixed part 701A, and the other end of the connecting plate 12 is fixedly connected to the cylinder 1; the movable part 701B is rotatably connected to one side of the fixed part 701A, which is far away from the cylinder 1, the inner wall of the movable part 701B is provided with a pair of connecting sleeves 706, the movable part 701B and the fixed part 701A are fixedly connected through a connecting shaft 705, the movable part 701B is clamped inside the fixed part 701A, the connecting shaft 705 penetrates through the fixed part 701A, the movable part 701B and the connecting sleeves 706 to realize rotary connection, and the movable part 701B can freely rotate around the fixed part 701A; a pair of connecting sleeves 706 are movably sleeved on the connecting shaft 705; the upper surface of the fixing part 701A is provided with a pair of limiting components 9, and the pair of limiting components 9 are symmetrically distributed about the central line of the upper surface of the fixing part 701A; the movable portion 701B is provided with a first fixed hook 703 and a second fixed hook 704, the first fixed hook 703 is fixedly connected to the bottom end of the movable portion 701B, and the second fixed hook 704 is fixedly connected to the upper surface of the movable portion 701B.
The working principle is as follows: according to the invention, the feeding component 7 is arranged, so that feeding into the barrel body 1 is facilitated, and particularly, a bagged feeding or barrel feeding mode is matched. Wherein, the feed hopper 701 plays a role in collecting when feeding, and the conveying pipe plays a role in conveying materials; further, by providing the feeding hopper 701 with the movable portion 701B and the fixed portion 701A, by adjusting the positional relationship between the movable portion 701B and the fixed portion 701A, when the movable portion 701B is rotated away from the fixed portion 701A, the feeding cross-sectional area of the upper end surface of the feeding hopper 701 can be increased, the feeding rate is increased, and feeding is facilitated; when the device is in a crushing working state, the movable part 701B is rotated to be clamped in the fixed part 701A, so that the volume of the feeding hopper 701 can be reduced, and the feeding hopper 701 can conveniently rotate along with the barrel 1.
Example 2
As shown in fig. 1, example 1 provides a method for preparing nanoscale spherical silica micropowder, which comprises the following steps:
preparing solid particles of silicon carbide from a solid containing silicon carbide in a ball mill, heating and soaking the solid particles of silicon carbide by adopting inorganic dilute acid, and washing and drying the solid particles of silicon carbide treated by the dilute acid for later use;
feeding silicon carbide solid particles into a spheroidizing reactor by using oxygen gas flow, adjusting the pressure inside the spheroidizing reactor to be 1.05Mpa, adjusting the temperature inside the spheroidizing reactor to be 1575 ℃, and burning the silicon micropowder to obtain silicon dioxide powder;
and step three, cooling the silicon dioxide powder obtained in the step three to form silicon micro powder, and then feeding the silicon micro powder into a classifier to classify according to the particle size.
The above-mentioned nanometer spherical silica powder preparation apparatus introduced in embodiment 2 is an improvement on embodiment 1, as shown in fig. 9-10, wherein the limiting assembly 9 includes a fixing seat 901, a limiting column 902, a sliding block 903, an adjusting block 904, a guide sleeve 905, a limiting plate 906, a pressing block 907 and a spring 908, a horizontal sliding groove 909 with an opening facing the inside of the fixing part 701A is formed on the fixing seat 901, a spring 908 capable of compressing or extending along the horizontal direction is fixedly embedded in the sliding groove 909, one end of the spring 908 is fixedly connected to the bottom of the sliding groove 909, the sliding block 903 is further slidably connected in the sliding groove 909, and the sliding block 903 can freely slide along the sliding groove 909; one end of the sliding block 903 positioned in the sliding groove 909 is fixedly connected with the spring 908, one end of the sliding block 903 exposed out of the sliding groove 909 is fixedly connected with the limiting column 902, and the limiting column 902 is horizontal; when the movable part 701B rotates to a state of being separated from the fixed part 701A, the first fixed hook 703 is just hooked on the limit column 902, and when the movable part 701B rotates to a state of being clamped with the fixed part 701A, the second fixed hook 704 is hooked on the limit column 902; the outer wall of the movable part 701B is in close contact with the inside of the fixed part 701A;
the upper surface of the fixed seat 901 is fixedly connected with a guide sleeve 905, the guide sleeve 905 is communicated with a chute 909, and the outer side wall of the adjusting block 904 is tightly contacted with the inner side wall of the guide sleeve 905; an adjusting groove 910 is formed in the upper surface of the sliding block 903, a limiting block 912 is fixedly connected to the bottom end of the adjusting block 904, and the bottom end of the limiting block 912 is in direct contact with the adjusting groove 910; the upper surface of the adjusting block 904 is fixedly connected with a pressing block 907; when the adjusting block 904 is pressed to the lowest position, the limiting column 902 retreats under the driving of the sliding block 903, and the limiting column 902 is completely separated from the first fixing hook 703 or the second fixing hook 704; when the pressing block 907 is released, the sliding block 903 automatically approaches the first fixing hook 703 or the second fixing hook 704 under the pressing action of the spring 908 until the first fixing hook 703 or the second fixing hook 704 hooks on the limiting column 902.
In the embodiment, the adjusting block is pressed downwards along the adjusting groove, and the sliding block 903 horizontally moves towards the outer side of the fixing part along with the pressing process of the adjusting block 904 until the sliding block is separated from the first fixing hook 703 or the second fixing hook 704; when the pressing block 907 is released, the spring 908 rebounds, and the slider 903 is automatically driven to horizontally move towards the inner side of the fixing part 701A, so that the first fixing hook 703 or the second fixing hook 704 is fixed.
Example 3
As shown in fig. 1, example 3 provides a method for preparing nanoscale spherical silica micropowder, which comprises the following steps:
preparing solid particles of silicon carbide from a solid containing silicon carbide in a ball mill, heating and soaking the solid particles of silicon carbide by adopting inorganic dilute acid, and washing and drying the solid particles of silicon carbide treated by the dilute acid for later use;
feeding silicon carbide solid particles into a spheroidizing reactor by using oxygen gas flow, adjusting the pressure inside the spheroidizing reactor to be 1.2Mpa, adjusting the temperature inside the spheroidizing reactor to be 1650 ℃, and burning the silicon micropowder to obtain silicon dioxide powder;
and step three, cooling the silicon dioxide powder obtained in the step three to form silicon micro powder, and then feeding the silicon micro powder into a classifier to classify according to the particle size.
The apparatus for preparing nano-scale spherical silica powder introduced in embodiment 3 is an improvement on the apparatus described in embodiment 2, and as shown in fig. 11-12, a feed hopper 701 is provided with a sealing cover 8 in a matching manner, the upper surface of a fixing portion 701A is fixedly connected with a horizontally arranged mounting plate 11, the corresponding position of the sealing cover 8 is also fixedly connected with the horizontally arranged mounting plate 11, and the sealing cover 8 and the fixing portion 701A are fixedly connected through a pair of mounting plates 11 and bolts; the mounting plate 11 of the fixing part 701A is further connected with the fixing part 701A in a reinforcing manner through a reinforcing plate 13, one side of the reinforcing plate 13 is fixedly connected to the fixing part 701A, and the other side of the reinforcing plate 13 is fixedly connected to the lower surface of the mounting plate 11; when the movable portion 701B is rotated to a state of being engaged with the fixed portion 701A, the seal cap 8 is engaged with the fixed portion 701A and the movable portion 701B.
In the embodiment, the sealing cover 8 is fixedly connected to the upper surface of the feed hopper 701, so that solid powder in the barrel 1 can be prevented from escaping from the feed pipe 2 during crushing, and dust pollution is avoided; the supporting function of the fixing part 701A can be enhanced by arranging the connecting plate 12 to connect the cylindrical body 1 and the fixing part 701A; by providing the reinforcing plate 13, the mounting stability between the mounting plate 11 positioned on the fixing portion 701A and the fixing portion 701A can be enhanced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A preparation device of nano-scale spherical silicon micro powder comprises a cylinder body (1), a feeding pipe (2), a driving motor (3), a reducer (4), a large gear (5) and a driving gear (6); the preparation equipment is characterized by also comprising a feeding component (7), a sealing cover (8) and a limiting component (9);
one end of the cylinder body (1) is fixedly connected with a feeding pipe (2), the other end of the cylinder body (1) is fixedly connected with a discharging pipe I (10), and one end, close to the feeding pipe (2), of the cylinder body (1) is fixedly sleeved with a large gear (5); the driving motor (3) is fixedly connected with the speed reducer (4) in a transmission manner, the speed reducer (4) is fixedly connected with a driving shaft of the driving gear (6) in a transmission manner, and the driving gear (6) is meshed with the large gear (5);
the feeding assembly (7) comprises a feeding hopper (701) and a second discharging pipe (702), the second discharging pipe (702) is fixedly connected to the lower end of the feeding hopper (701), a flange plate is fixedly connected to one end, far away from the feeding hopper (701), of the second discharging pipe (702), a flange plate is fixedly connected to one end, far away from the barrel body (1), of the feeding pipe (2), and the second discharging pipe (702) and the feeding pipe (2) are fixedly connected through a pair of flange plates and bolts;
the feeding hopper (701) comprises a fixed part (701A) and a movable part (701B), the fixed part (701A) is fixedly connected to the top end of the discharge pipe II (702), and the movable part (701B) is rotatably connected to one side, far away from the barrel body (1), of the fixed part (701A); the upper surface of the fixing part (701A) is provided with a pair of limiting components (9), and the limiting components (9) are symmetrically distributed about the central line of the upper surface of the fixing part (701A); the movable part (701B) is provided with a first fixed hook (703) and a second fixed hook (704), the first fixed hook (703) is fixedly connected to the bottom end of the movable part (701B), and the second fixed hook (704) is fixedly connected to the upper surface of the movable part (701B);
the limiting assembly (9) comprises a fixed seat (901), a limiting column (902), a sliding block (903), an adjusting block (904), a guide sleeve (905), a limiting plate (906), a pressing block (907) and a spring (908), wherein a horizontal sliding groove (909) with an opening facing the inner side of the fixed part (701A) is formed in the fixed seat (901), the spring (908) capable of being compressed or extended along the horizontal direction is fixedly embedded in the sliding groove (909), one end of the spring (908) is fixedly connected to the bottom of the sliding groove (909), the sliding block (903) is further connected to the inside of the sliding groove (909) in a sliding mode, and the sliding block (903) can freely slide along the sliding groove (909); one end of the sliding block (903) positioned in the sliding groove (909) is fixedly connected with the spring (908), one end of the sliding block (903) exposed out of the sliding groove (909) is fixedly connected with a limiting column (902), and the limiting column (902) is horizontal; when the movable part (701B) rotates to be separated from the fixed part (701A), the first fixed hook (703) is just hooked on the limiting column (902), and when the movable part (701B) rotates to be clamped with the fixed part (701A), the second fixed hook (704) is hooked on the limiting column (902); the outer wall of the movable part (701B) is in close contact with the inside of the fixed part (701A);
the upper surface of the fixed seat (901) is fixedly connected with a guide sleeve (905), the guide sleeve (905) is communicated with a sliding groove (909), the upper surface of the sliding block (903) is provided with an adjusting groove (910), the bottom end of the adjusting block (904) is fixedly connected with a limiting block (912), and the bottom end of the limiting block (912) is directly contacted with the adjusting groove (910); the upper surface of the adjusting block (904) is fixedly connected with a pressing block (907); when the adjusting block (904) is pressed to the lowest position, the limiting column (902) retreats under the driving of the sliding block (903), and the limiting column (902) is completely separated from the first fixing hook (703) or the second fixing hook (704); the pressing block (907) is loosened, and the sliding block (903) automatically approaches to the first fixing hook (703) or the second fixing hook (704) under the extrusion action of the spring (908) until the first fixing hook (703) or the second fixing hook (704) is hooked on the limiting column (902);
feed hopper (701) are supporting to be provided with into sealed lid (8), the last fixed surface of fixed part (701A) is connected with mounting panel (11) that the level set up, the corresponding position of sealed lid (8) is also fixedly connected with mounting panel (11) that the level set up, through a pair of mounting panel (11) and bolt fixed connection between sealed lid (8) and fixed part (701A).
2. The apparatus for preparing nanoscale spherical silica powder according to claim 1, wherein the movable part (701B) and the fixed part (701A) are fixedly connected by a connecting shaft (705), the movable part (701B) is engaged with the inside of the fixed part (701A), the connecting shaft (705) penetrates through the fixed part (701A) and the movable part (701B) to realize a rotational connection, and the movable part (701B) can freely rotate around the fixed part (701A).
3. The apparatus for preparing nano-scale spherical silica micropowder according to claim 1, wherein the inner wall of the movable part (701B) is provided with a pair of connecting sleeves (706), and the pair of connecting sleeves (706) is movably sleeved on the connecting shaft (705).
4. The equipment for preparing the nanometer spherical silica micropowder according to claim 1, wherein the fixing part (701A) is fixedly connected with the cylinder (1) by a connecting plate (12), one end of the connecting plate (12) is fixedly connected to the side of the fixing part (701A) close to the cylinder (1), and the other end of the connecting plate (12) is fixedly connected to the cylinder (1).
5. The apparatus for producing nanosized spherical silica fine powder according to claim 1, wherein the sealing lid (8) is engaged with the fixed part (701A) and the movable part (701B) when the movable part (701B) is rotated to a state of being engaged with the fixed part (701A).
6. The apparatus for preparing nano spherical silica powder according to claim 1, wherein the fixing portion (701A) and the mounting plate (11) fixedly connected to the fixing portion (701A) are further connected by a reinforcing plate (13) in a reinforcing manner, one side of the reinforcing plate (13) is fixedly connected to the fixing portion (701A), and the other side of the reinforcing plate (13) is fixedly connected to the lower surface of the mounting plate (11).
7. The apparatus for preparing nano spherical silica powder according to claim 1, wherein an outer sidewall of the regulating block (904) is in close contact with an inner sidewall of a guide sleeve (905).
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| CN2020116100715 | 2020-12-30 | ||
| CN202011610071.5A CN112758944A (en) | 2020-12-30 | 2020-12-30 | Preparation method and application of nano-scale spherical silicon micro powder |
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| CN202111412464.XA Active CN113929103B (en) | 2020-12-30 | 2021-11-25 | Preparation method and application of nanoscale spherical silicon micropowder |
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| CN114539809A (en) * | 2022-02-14 | 2022-05-27 | 连云港威晟硅材料有限公司 | Surface-modified silicon micropowder and preparation method thereof |
| CN116899680B (en) * | 2023-08-10 | 2024-03-12 | 连云港威晟硅材料有限公司 | Shaping equipment for producing and processing silicon micropowder and shaping method thereof |
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| CN113929103B (en) | 2022-06-14 |
| CN112758944A (en) | 2021-05-07 |
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