CN201676755U - Centrifugal grader with scattering multi-sectioned grading function - Google Patents
Centrifugal grader with scattering multi-sectioned grading function Download PDFInfo
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- CN201676755U CN201676755U CN2010201584341U CN201020158434U CN201676755U CN 201676755 U CN201676755 U CN 201676755U CN 2010201584341 U CN2010201584341 U CN 2010201584341U CN 201020158434 U CN201020158434 U CN 201020158434U CN 201676755 U CN201676755 U CN 201676755U
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Abstract
The utility model relates to a grader for nano-particle grading, and provides a centrifugal grader with a scattering multi-sectioned grading function, which comprises a feeding device, a speed regulating motor (16) and a grader body; a rotary shaft (4) in the center of the grader body and an outer sleeve (6) form a circular grading room; a stock solution supply port (2) and a mother solution supply port (1) are separated through an isolating sleeve (3) and a feeding partition board (5); at least 3 particle solution discharge ports are arranged on an end cover (7) at the lower part of the circular grading room along the radius direction, and each particle solution discharge port is provided with a flow regulating device (8); a scattering device (17) is a cylinder which is provided with a plurality small circular holes on the cylinder wall and is fixed; and the scattering device (17) is arranged in the isolating sleeve and is communicated with the stock solution supply port (2). By adopting the scattering device which has significant depolymerization effect to the conglobated nano-particles before grading, the centrifugal grader can effectively improve the grading precision.
Description
Technical field
The utility model relates to the grader of nano-scale particle classification, particularly a kind of centrifugal grader with the classification of divergent function multistage.
Background technology
Be accompanied by the popularization that nanometer technology is used, the classification problems of nano particle more and more obtains paying attention to.For example, used opacifier titanium dioxide in the fiber industry, needing in concrete use particle diameter is that particle more than 1000 nanometers all separates rejecting, otherwise will influence the intensity of fiber, occurs broken string easily; When hyperfine surface was polished, requiring average grain diameter was the high-precision extra-fine grinding polishing agent of hundreds of nanometer or even tens nanometers, as silica, cerium oxide etc., need carry out strict classification to nano particle equally.When at present size distribution being required extremely strict nano level superfine gradation, most of multistage subsider that adopts carries out the classification of wet type gravitational settling.Use the shortcoming of settling methods to be: because particle is very little, sinking speed is very slow, and be subject to extraneous interference and influence the precision of classification, so production efficiency is low, poor product quality, manufacturing cost height, and will waste great amount of water resources and be used for its dry thermal resource.In addition, foreign patent US20040491474 has provided a kind of equipment of centrifugal classification, but this equipment has limitation in the use, and be embodied in three aspects: 1) removal to big particle is incomplete; 2) the classification rate of recovery of product is low; 3) can not move continuously.At this defective, domestic patent CN200974043Y has also proposed a kind of centrifugal grader that can be used for the nano-scale particle multistage, has realized continuous operation.But the same with foreign patent, the shortcoming that the grading rate of recovery is low still can't solve.Its reason is before classification is handled, and the nanoparticulate dispersed in the mother liquor is incomplete, and a lot of nanoparticle agglomerates with separated going out of oarse-grained form, thereby have reduced effectiveness of classification together.
Summary of the invention
The purpose of this utility model is at the problems referred to above, and a kind of centrifugal grader with the classification of divergent function multistage is provided, and makes it have divergent function, and has effectiveness of classification height and the characteristics that can move continuously.
The technical solution adopted in the utility model is:
A kind of centrifugal grader with the classification of divergent function multistage is made up of feed arrangement, buncher and grader body; Feed arrangement comprises stoste solution feed pump and mother liquor solution feed pump; Grader body center is gyroaxis and is connected with buncher by shaft joint; Be fixed with concentric outer sleeve on the described gyroaxis, the cavity between described gyroaxis and the outer sleeve forms annular grading room; Be provided with the charging division board that is fixed on the gyroaxis in the middle of gyroaxis and the outer sleeve; The gyroaxis inside top is fixed with distance sleeve, by being connected of distance sleeve and charging division board stoste supply port and mother liquor supply port being separated; Radial direction has at least 3 particle liquid outlets in annular grading room lower end cap upper edge, and on each particle liquid outlet flow regulator is installed; The end face bearing of grader body by being positioned at the gyroaxis bottom is as support; It is characterized in that: be provided with the dispersal device that the nano particle of reuniting is played effective depolymerisation, described dispersal device be have some circular apertures on the barrel, with respect to gyroaxis and the actionless cylinder of outer sleeve; Described dispersal device is arranged on the top of grader body center steering axle and is positioned at distance sleeve; Described dispersal device is communicated with the stoste supply port.
A kind of above-mentioned centrifugal grader with the classification of divergent function multistage, it is characterized in that: the power of buncher is 2～5kw, speed adjustable range is 200～5000 rev/mins.
A kind of above-mentioned centrifugal grader with the classification of divergent function multistage, it is characterized in that: dispersal device is fixed on the suspension bracket.The outer sleeve of grader body and charging division board and distance sleeve and gyroaxis are welded to connect.Annular grading room lower end cap adopts bolt to be connected with gyroaxis and outer sleeve, is convenient to decompose.
The utility model has the advantages that:
1) nano particle by after the dispersal device processing, can effectively be removed reunion before classification, thereby guarantees that the nano particle major part enters follow-up classification processing with the form of an individual particle, can effectively improve effectiveness of classification like this.
2) particle liquid outlet quantity is no less than 3, can realize the multistage classification to nano particle, can obtain the narrower nanometer product of multistage size distribution.Unique flow regulator is installed on each particle liquid outlet, is guaranteed that each outlet is with same speed discharge particle liquid.Can guarantee that like this particle liquid in the annular grading room can not get muddled in classification process, to guarantee effectiveness of classification.
3) compare with the natural subsidence hierarchical approaches, the speed of gyration of centrifugal grader is far longer than the sinking speed in the natural subsidence, can regulate owing to speed of gyration simultaneously, so centrifugal acceleration also can be controlled arbitrarily, the time of classification process is shortened, improved production efficiency.
4) under bigger action of centrifugal force, stoste and mother liquor itself keeps stable, not disorderly, unmixed state easily, improved effectiveness of classification.
5) can adjust the time of staying of particle in the classification territory by adjusting liquid supply speed, make the thickest particle before arriving the overseas side surface of classification, just be rejected to outside the grader, be unlikely on the outer surface in classification territory, to form deposition, realize that classification process moves continuously.
Description of drawings
Fig. 1 is the structural representation of the centrifugal grader of the utility model.
Among the figure: 1, mother liquor supply port, 2, the stoste supply port, 3, distance sleeve, 4, gyroaxis, 5, the charging division board, 6, outer sleeve, 7, annular grading room lower end cap, 8, flow regulator, 9, coarse granule liquid outlet, 10, middle particle liquid outlet, 11, fine grained liquid outlet, 12, ultra-fine grain liquid outlet, 13, mother liquor solution feed pump, 14, the stoste solution feed pump, 15, the end face bearing, 16, buncher, 17, dispersal device, 18, suspension bracket.
The specific embodiment
In conjunction with the accompanying drawings and embodiments the utility model is illustrated.
As shown in Figure 1, a kind of centrifugal grader with the classification of divergent function multistage is made up of feed arrangement, buncher 16, dispersal device 17 and grader body; Feed arrangement comprises stoste solution feed pump 14 and mother liquor solution feed pump 13; Grader body center is gyroaxis 4 and is connected with buncher 16 by shaft joint; Be fixed with concentric outer sleeve 6 on the gyroaxis 4, be provided with the charging division board 5 that is fixed on the gyroaxis 4 in the middle of gyroaxis 4 and the outer sleeve 6; The gyroaxis inside top is fixed with distance sleeve 3, by being connected of distance sleeve 3 and charging division board 5 mother liquor supply port and stoste supply port being separated; Described dispersal device 17 is the cylinder that has some circular apertures on the barrel, is fixed on the suspension bracket 18; Described dispersal device 17 is arranged on the top of grader body center steering axle and is positioned at distance sleeve; Described dispersal device 17 is communicated with stoste supply port 2.On annular grading room lower end cap 7, be provided with coarse granule liquid outlet 9, middle particle liquid outlet 10, fine grained liquid outlet 11 and ultra-fine grain liquid outlet 12; On each particle liquid outlet, be provided with flow regulator 8; The grader body supports by end face bearing 15 conducts that are positioned at the gyroaxis bottom; The power of buncher 16 is 3kw, 3000 rev/mins of rotating speeds; The gyroaxis 4 of dispersal device and grader body, outer sleeve 6, charging division board 5, distance sleeve 3, annular grading room lower end cap 7 all adopt the stainless steel manufacturing; Dispersal device is fixed on the suspension bracket 18 separately, and the outer sleeve 6 of grader body and charging division board 5 and distance sleeve 3 are welding with the fixed form of gyroaxis 4.Being connected of annular grading room lower end cap 7 and gyroaxis 4 and outer sleeve 6 adopts bolt to connect.
As shown in Figure 1, the stoste that contains subparticle enters dispersal device 17 from stoste supply port 2, enters grader after dispersion treatment, and the mother liquor that does not contain subparticle enters grader from mother liquor supply port 1; After speed governing, all enter in the annular grading room that forms between gyroaxis 4 and the outer sleeve 6; Stoste and mother liquor will keep same speed and not get muddled on its interface, and this interface will vertically keep stable in whole classification process, and the disorder that mixes the entrained particle cause owing to liquid mixes and will effectively be suppressed like this; When subparticle is carried the longshore current line and is directed downwards motion by stoste, owing to be subjected to powerful action of centrifugal force, particles with different sizes will be with the radially generation centrifugal motion of different speed along revolving body, wherein thicker particle has bigger centrifugal motion speed, leaving stoste easily enters in the mother liquor, when arriving the outlet in classification territory, subparticle can form the distribution of a rule in the annular grading room of mother liquor and stoste, and wherein thicker distribution of particles is in the side away from gyroaxis; And thinner particle will be distributed in the side near gyroaxis; Radial direction has 4 particle liquid outlets as required in annular grading room lower end cap upper edge, and unique flow regulator is installed on each particle liquid outlet, guarantees that each outlet is with same speed discharge particle liquid.Can guarantee that like this particle liquid in the annular grading room can not get muddled in classification and discharge process, the liquid that contains coarse granule, middle particle, fine grained and ultra-fine grain flows out graders along separately outlet 9,10,11,12 respectively, reaches the purpose of nano particle multistage fine grading.Because dispersion treatment has tangible depolymerization effect to the nano particle of reuniting, so can effectively improve the precision of classification.
Claims (4)
1. the centrifugal grader with the classification of divergent function multistage is made up of feed arrangement, buncher (16) and grader body; Feed arrangement comprises stoste solution feed pump (14) and mother liquor solution feed pump (13); Grader body center is gyroaxis (4) and is connected with buncher (16) by shaft joint; Be fixed with concentric outer sleeve (6) on the described gyroaxis (4), the cavity between described gyroaxis (4) and the outer sleeve (6) forms annular grading room; Be provided with the charging division board (5) that is fixed on the gyroaxis in the middle of gyroaxis (4) and the outer sleeve (6); The gyroaxis inside top is fixed with distance sleeve (3), by being connected of distance sleeve (3) and charging division board (5) stoste supply port (2) and mother liquor supply port (1) being separated; Radial direction has at least 3 particle liquid outlets (9), (10), (11), (12) in annular grading room lower end cap (7) upper edge, and on each particle liquid outlet flow regulator (8) is installed; The grader body supports by end face bearing (15) conduct that is positioned at the gyroaxis bottom; It is characterized in that: be provided with the dispersal device (17) that the nano particle of reuniting is played effective depolymerisation, described dispersal device (17) be have some circular apertures on the barrel, with respect to gyroaxis and the actionless cylinder of outer sleeve; Described dispersal device (17) is arranged on the top of grader body center steering axle and is positioned at distance sleeve; Described dispersal device (17) is communicated with stoste supply port (2).
2. a kind of centrifugal grader with the classification of divergent function multistage according to claim 1, it is characterized in that: described dispersal device (17) is fixed on the suspension bracket (18).
3. a kind of centrifugal grader according to claim 1 with the classification of divergent function multistage, it is characterized in that: the power of described buncher (16) is 2～5kw, speed adjustable range is 200～5000 rev/mins.
4. a kind of centrifugal grader with the classification of divergent function multistage according to claim 1 is characterized in that: described outer sleeve (6) and charging division board (5) and distance sleeve (3) are welded to connect with gyroaxis (4); Annular grading room lower end cap (7) adopts bolt to be connected with gyroaxis (4) and outer sleeve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201584341U CN201676755U (en) | 2010-04-14 | 2010-04-14 | Centrifugal grader with scattering multi-sectioned grading function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201584341U CN201676755U (en) | 2010-04-14 | 2010-04-14 | Centrifugal grader with scattering multi-sectioned grading function |
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| Publication Number | Publication Date |
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| CN201676755U true CN201676755U (en) | 2010-12-22 |
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| CN2010201584341U Expired - Fee Related CN201676755U (en) | 2010-04-14 | 2010-04-14 | Centrifugal grader with scattering multi-sectioned grading function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110624700A (en) * | 2019-09-26 | 2019-12-31 | 湘潭大学 | Centrifugal classifier for gas-solid mixed ultrafine powder |
| CN112238001A (en) * | 2019-07-17 | 2021-01-19 | 阜阳师范大学 | Method for differential separation of nano aluminum powder with different particle sizes |
-
2010
- 2010-04-14 CN CN2010201584341U patent/CN201676755U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112238001A (en) * | 2019-07-17 | 2021-01-19 | 阜阳师范大学 | Method for differential separation of nano aluminum powder with different particle sizes |
| CN110624700A (en) * | 2019-09-26 | 2019-12-31 | 湘潭大学 | Centrifugal classifier for gas-solid mixed ultrafine powder |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20130414 |