CN114166571B - Sampling detection equipment for controlling uniform dispersion of nano powder - Google Patents
Sampling detection equipment for controlling uniform dispersion of nano powder Download PDFInfo
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- CN114166571B CN114166571B CN202210115288.1A CN202210115288A CN114166571B CN 114166571 B CN114166571 B CN 114166571B CN 202210115288 A CN202210115288 A CN 202210115288A CN 114166571 B CN114166571 B CN 114166571B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/02—Food
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1006—Dispersed solids
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Abstract
The invention relates to the technical field of powder mixing equipment, in particular to sampling detection equipment for controlling uniform dispersion of nano powder. According to the invention, a certain amount of powder is put into the shell, the powder is driven to rotate in the shell in a circulating and reciprocating manner by the rotation of the friction device, the powder is continuously rubbed and contacted with the arc-shaped block at the bottom of the shell by the protrusion arranged at the bottom of the friction device, so that the powder which is condensed together is continuously kneaded and crushed, the powder meeting the requirement of the mesh number is filtered out from the filter screen, and meanwhile, the air inflation pipe arranged above the friction cover is used for intermittently blowing air towards the screening cavity to assist the dispersion of the powder which is condensed into clusters, and meanwhile, the powder attached to the outer wall of the shell can be scraped off, so that the coagulation is avoided, and the efficiency of screening qualified samples is improved.
Description
Technical Field
The invention relates to the technical field of powder mixing, in particular to sampling detection equipment for controlling uniform dispersion of nano powder.
Background
The nano food is obtained by performing nano-scale treatment and processing transformation on food components by using a food high and new technology, and certain structures of the food can be changed by reprogramming molecules and atoms of the food, so that the absorption rate of certain components can be greatly improved, the toxic and side effects of the health food can be reduced, the transportation of nutrient components in a body can be accelerated, the absorption and utilization rate of mineral elements by the human body can be improved, and the quality guarantee period of the food can be prolonged.
The most common powder nano food processing method in nano food is a physical method, and under the action of impact or friction force, the particles are refined, while in the physical processing method, the ball milling method has higher efficiency and lower cost, and if the ball milling method is adopted to prepare nano green tea powder, the leaching rate of the tea powder can be improved, and the antioxidant activity of the tea powder can also be enhanced.
Because the purity and the application efficiency of the nano powder are easily influenced by factors such as a preparation method, a process and the like in the manufacturing process of the nano powder, the powder is detected by adopting a sampling detection mode before production, the additive content and the content of a finished product are detected, but if the nano powder is condensed into clusters due to water vapor in a storage environment with high air humidity, the particle size after granulation is different, the internal content is also greatly different, the referential performance of a random sampling detection result is also lower, and in the actual detection process, although the required amount of a sample is less, the sample with the similar particle size is also difficult to obtain.
Therefore, a sampling detection device for controlling the nano powder to be uniformly dispersed is provided to solve the problems.
Disclosure of Invention
Solves the technical problem
Aiming at the defects in the prior art, the invention provides the sampling detection equipment for controlling the uniform dispersion of the nano powder, which can effectively solve the problem of the prior art on the nano powder.
Technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
the invention provides a sampling detection device for controlling the uniform dispersion of nano powder, which comprises:
a screening chamber in the casing is established to base and movable mounting that is used for strutting arrangement on base upper portion, the screening chamber is used for carrying out the screening of certain mesh number with the powder, establishes friction device in the casing, the friction device can rotate in the casing and its distribute along the outer end has a plurality of arch down, and the region between the adjacent arch can promote the powder of screening intracavity and rotate along with the friction device is synchronous to contradict and extrude the powder of gathering towards screening chamber wall direction.
The filter screen of demountable installation in the casing, the filter screen is established under the screening chamber, and the powder that will accord with the filter mesh number standard filters out from screening intracavity portion.
Furthermore, the base is in threaded connection with the shell, a motor is arranged in the middle of the inner side of the base, and the lower end of the friction device is movably matched with the output end of the motor.
Furthermore, the whole body of the shell is cylindrical, four feeding holes which are circumferentially distributed are formed in the upper portion of the shell, the screening cavity is communicated with the feeding holes and is annularly distributed along the direction of the outer edge of the inside of the shell, and the friction device and the shell are concentrically arranged and are rotatably installed at the lower end of the shell.
Furthermore, the friction device comprises a hemispherical friction cover with an upward spherical surface and an annular skirt cover arranged at the lower end of the friction cover, the skirt cover is an arc surface facing the inner end direction of the shell, and the four protrusions are uniformly distributed on the arc end surface of the skirt cover.
Furthermore, the protrusion is arc-shaped when overlooked, the thickness of the middle of the protrusion gradually becomes thinner towards the directions of two sides, four arc blocks are distributed on the end face of the inner side of the shell, the four arc blocks are distributed circumferentially, and the arc face faces one side of the protrusion.
Further, install the boss of the inboard lower extreme of casing, the boss sets up along the inboard outer fringe direction of casing, and personally submits the cambered surface towards screening chamber one side end, the boss is located bellied below.
Further, still including installing detain the cover in the casing, detain the cover and detain the upper end at the friction cover, install detain the gasbag on the cover inner wall, the gasbag is equipped with six and equidistance and distributes, installs at every the gas expansion pipe of gasbag lower extreme, the end of giving vent to anger of gas expansion pipe is towards screening chamber.
And the abutting blocks are arranged on the outer end surface of the friction cover and are distributed at equal intervals and can intermittently extrude the air bag.
Furthermore, the whole abutting block is arc-shaped, the outer end of the abutting block is staggered with the air bag and matched with the air bag, and the air inflation pipe intermittently blows air towards the screening cavity along with the rotation of the friction device to blow off the powder.
Advantageous effects
Compared with the known public technology, the technical scheme provided by the invention has the following beneficial effects:
according to the invention, a certain amount of powder is put into the shell, the powder is driven to rotate in the shell in a circulating and reciprocating manner by the rotation of the friction device, the powder is continuously rubbed and contacted with the arc-shaped block at the bottom of the shell by the protrusion arranged at the bottom of the friction device, so that the powder which is condensed together is continuously kneaded and crushed, the powder meeting the requirement of the mesh number is filtered out from the filter screen, and meanwhile, the air inflation pipe arranged above the friction cover is used for intermittently blowing air towards the screening cavity to assist the dispersion of the powder which is condensed into clusters, and meanwhile, the powder attached to the outer wall of the shell can be scraped off, so that the coagulation is avoided, and the efficiency of screening qualified samples is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic view of the entire structure of the present invention;
FIG. 2 is an exploded view of the base and housing of the present invention;
FIG. 3 is a schematic view of a disassembled structure of the filter screen of the present invention;
FIG. 4 is a schematic partial cross-sectional view of the structure of the present invention;
FIG. 5 is a schematic diagram of the structure at A in FIG. 4 according to the present invention;
FIG. 6 is an exploded view of the friction device of the present invention;
FIG. 7 is a cross-sectional view of the friction device of the present invention;
FIG. 8 is an exploded view of the buckle cover of the present invention;
FIG. 9 is a schematic view of the arc-shaped block structure of the present invention;
FIG. 10 is a schematic view of the direction of force applied to the powder according to the present invention.
The reference numerals in the drawings denote: 1. a base; 11. a motor; 12. a feeding hole; 13. a snap ring; 14. a discharge hole; 15. a storage box; 2. a housing; 21. a friction device; 211. a protrusion; 212. a friction cover; 213. a skirt; 214. a resisting block; 22. an arc-shaped block; 23. a boss; 3. a screening chamber; 4. filtering with a screen; 5. buckling a cover; 51. an air bag; 52. and (5) expanding the tube.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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. It is to be understood that the embodiments described are only a few embodiments of the present invention, and 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 invention.
The present invention will be further described with reference to the following examples.
Example (b): referring to fig. 1-10, a sampling detection device for controlling the uniform dispersion of nano-powder comprises a circular base 1, wherein a motor 11 is installed in the middle of the inner side of the base 1 in this embodiment, the upper end of the base 1 is in threaded fit with a housing 2 positioned on the upper portion of the base 1, a rotatable friction device 21 is arranged in the housing 2, two tooth clamping grooves are formed in the bottom of the friction device 21, the output end of the motor 11 is connected with a clamping pin corresponding to the clamping groove in the bottom of the friction device 21, the motor 11 in this embodiment is not limited in use in the actual use process, other driving structures can be used for replacement, the rotating speed requirement in the screening process in this embodiment is low, the rotating speed is 50-80 r/min, and the generated centrifugal force is not enough to throw out the friction device 21.
Four feeding holes 12 distributed circumferentially are formed in the upper portion of the shell 2, a screening cavity 3 in an annular shape is formed in the shell 2, the feeding holes 12 are formed above the screening cavity 3, when powder is poured into the screening cavity 3, a funnel shown in figures 1-2 can be used for feeding the powder, and the powder with the composite mesh requirement is screened out of the shell 2 by enabling the powder to rotate in the reciprocating mode of the screening cavity 3 and touching the powder through extrusion of a friction device 21.
Be equipped with a snap ring 13 along inner edge department in the base 1, snap joint has a storage box 15 that is used for storing the sifting out powder in the snap ring 13, stores box 15 and is located filter screen 4 under, collects powder process after the completion, opens casing 2, will store the box and take out.
An annular filter screen 4 is mounted on a lower screw of the shell 2, four discharge holes 14 are circumferentially formed in the lower end of the friction device 21 at the position of the powder moving path, nanometer filter holes in the filter screen 4 are arranged corresponding to the lower ends of the discharge holes 14, the filter screen 4 in the embodiment is made of a polymer filter material film, filter holes with different pore diameters are formed in the practical use process, the diversity of detection on powder with different meshes in batches is improved, the whole filtering process is short, the number of samples required by detection is relatively small, the shell 2 is integrally cylindrical, the screening cavity 3 is communicated with the feed hole 12 and is annularly distributed along the inner edge direction of the shell 2, and the friction device 21 and the shell 2 are concentrically arranged and are rotatably mounted at the lower end of the shell 2.
The friction device 21 comprises a hemispherical friction cover 212 with an upward spherical surface and an annular skirt cover 213 arranged at the lower end of the friction cover 212, the skirt cover 213 is an arc surface facing the inner end of the shell 2, four protrusions 211 are circumferentially distributed on the arc end surface of the position, when powder exists in the screening cavity 3, a pushing interval is formed between every two adjacent protrusions 211 through the rotation of the friction device 21, the powder can be gathered and driven to move for a certain distance, and meanwhile, the powder can move towards the cavity wall of the screening cavity 3 in the moving process and can be extruded with the cavity wall.
And the protruding 211 that is located on the friction cover 212 arc terminal surface overlooks the visual angle and is the arc form, and protruding 211 middle part thins gradually towards both sides direction thickness, it has four arc pieces 22 to be located 2 medial extremity of casing and distribute, thereby when adjacent protruding 211 removes and holds together a certain amount of powder, can let powder remove when rub powder between protruding 211 and arc piece 22, the powder that will condense together rubs garrulous and again breaks in disorder the dispersion, change the relative position between the powder, four arc pieces 22 circumference distribute and the cambered surface is towards protruding 211 one side.
The annular boss 23 is arranged at the lower end of the inner side of the shell 2 and attached to the outer edge of the inner side of the shell 2, and the arc surface of the boss 23 faces one end of the screening cavity 3, so that when the protrusion 211 pushes the powder to move, the height of the arc surface is beneficial to enabling the powder arched on the end surface of the inner side of the shell 2 to fall back into a moving track again, the powder cannot be accumulated at corners and is not easy to be excessive and accumulated at corners compared with the traditional vertical end surface, and the boss 23 in the embodiment is arranged below the protrusion 211.
The upper end of the shell 2 is provided with a buckle cover 5, the buckle cover 5 is of an inverted bowl-shaped structure integrally and is buckled at the upper end of the friction cover 212, six air bags 51 are uniformly and circumferentially distributed on the inner side end of the buckle cover 5, in the embodiment, the air bags 51 are of an ellipsoid shape integrally, four abutting blocks 214 which are circumferentially distributed are arranged on the outer end face of the friction cover 212, the abutting blocks 214 are of an ellipsoid shape, the motion track of the abutting blocks 214 and the convex surfaces of the air bags 51 are arranged in a staggered mode, when the abutting blocks 214 move along with the friction device 21, the air bags 51 are compressed by the collision between the arc surfaces, the lower end of each air bag 51 is connected with an air expansion pipe 52, the air outlet end of each air expansion pipe 52 faces the sieving cavity 3, discharged gas can blow away powder which is piled up together, and the air dispersion rate of the powder is improved.
The size of the abutting block 214 in this embodiment is exactly equal to that of the air bag 51, so that the abutting block will collide with another air bag 51 after a short stroke while separating from one air bag 51, the previous air bag 51 will be inflated, the friction force in the tube of the inflatable tube 52 is small, and a certain filtering structure is provided at the port of the air bag 51 to avoid blocking caused by powder absorption during air return.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not cause the essence of the corresponding technical solutions to depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A sampling detection device for controlling the uniform dispersion of nano powder is characterized by comprising:
a base;
a shell movably arranged on the upper part of the base;
the screening cavity is arranged in the shell and used for screening the powder with a certain mesh number;
the friction device is arranged in the shell and can rotate in the shell, a plurality of bulges are distributed at the outer end of the lower edge of the friction device, the area between the adjacent bulges can push the powder in the screening cavity to synchronously rotate along with the friction device, and the gathered powder is abutted and extruded towards the wall direction of the screening cavity;
demountable installation is in filter screen in the casing, the filter screen is established under the screening chamber, and the powder that will accord with the filter mesh number standard filters out from screening intracavity portion.
2. The sampling detection device for controlling the uniform dispersion of the nanopowder according to claim 1, wherein the base is in threaded connection with the shell, a motor is arranged in the middle of the inner side of the base, and the lower end of the friction device is movably matched with the output end of the motor.
3. The sampling detection device for controlling the uniform dispersion of the nano-powder according to claim 1, wherein the shell is integrally cylindrical, four circumferentially distributed feed holes are formed in the upper part of the shell, the screening cavity is communicated with the feed holes and annularly distributed along the direction of the outer edge in the shell, and the friction device is concentrically arranged with the shell and rotatably mounted at the lower end of the shell.
4. The sampling detection equipment for controlling the uniform dispersion of the nano powder as claimed in claim 1, wherein the friction device comprises a hemispherical friction cover with an upward spherical surface and an annular skirt cover arranged at the lower end of the friction cover, the skirt cover is in a cambered surface towards the inner end of the shell, and the four protrusions are uniformly distributed on the cambered surface of the skirt cover.
5. The sampling detection device for controlling the uniform dispersion of the nano powder according to claim 1, wherein the protrusion is arc-shaped when viewed from above, the thickness of the middle part of the protrusion gradually becomes thinner towards the directions of two sides, four arc-shaped blocks are distributed on the end surface of the inner side of the shell, the four arc-shaped blocks are distributed circumferentially, and the arc surface faces one side of the protrusion.
6. The sampling detection device for controlling the uniform dispersion of nanopowder according to claim 5, wherein the housing further comprises:
a boss arranged at the lower end of the inner side of the shell;
the boss sets up along the inboard outer fringe direction of casing, and personally submits the cambered surface towards screening chamber one side end, the boss is located bellied below.
7. The sampling detection device for controlling the uniform dispersion of the nanopowder according to claim 4, further comprising:
the buckle cover is arranged in the shell and is buckled at the upper end of the friction cover;
the six air bags are arranged on the inner wall of the buckle cover and are distributed at equal intervals;
the air outlet end of the air inflation pipe faces the screening cavity;
and the abutting blocks are arranged on the outer end surface of the friction cover and are distributed at equal intervals and can intermittently extrude the air bag.
8. The sampling detection device for controlling the uniform dispersion of the nano powder as claimed in claim 7, wherein the supporting block is integrally arc-shaped, the outer ends of the supporting block and the air bags are staggered and matched with each other, and the air inflation tube intermittently blows air towards the sieving cavity along with the rotation of the friction device to blow the powder.
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| CN202210115288.1A CN114166571B (en) | 2022-02-07 | 2022-02-07 | Sampling detection equipment for controlling uniform dispersion of nano powder |
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| CN202210115288.1A CN114166571B (en) | 2022-02-07 | 2022-02-07 | Sampling detection equipment for controlling uniform dispersion of nano powder |
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| CN215087708U (en) * | 2021-04-29 | 2021-12-10 | 杭州阿凡达光电科技有限公司 | Nano powder slurry dispersing and grinding device |
| CN113877500A (en) * | 2021-10-09 | 2022-01-04 | 江西华明纳米碳酸钙有限公司 | Stirring formula nanometer calcium carbonate preparation equipment |
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