WO1995032057A1 - Dispositif de criblage fin de type cyclone - Google Patents
Dispositif de criblage fin de type cyclone Download PDFInfo
- Publication number
- WO1995032057A1 WO1995032057A1 PCT/CN1995/000044 CN9500044W WO9532057A1 WO 1995032057 A1 WO1995032057 A1 WO 1995032057A1 CN 9500044 W CN9500044 W CN 9500044W WO 9532057 A1 WO9532057 A1 WO 9532057A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- screen
- sieve
- cylinder
- fine
- flange
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/08—Vortex chamber constructions
- B04C5/10—Vortex chamber constructions with perforated walls
Definitions
- the Ming refers to the machinery and equipment for the production of sandy gasified aluminum. It is a kind of fine cyclone with a cage structure, which is used for the classification of aluminum hydroxide.
- the aluchemical aluminum plant usually adopts the Bayer process.
- the radon gas produced is a fine-grained material.
- the range of argon-gasified aluminum particles produced by the decomposition tank is wide, and three products of sandy ammonia gaseous aluminum, coarse crystal seeds and fine crystal seeds need to be classified, and coarse-grained sand radon. 5 (+ 44 ⁇ ⁇ grain grade content is greater than 90%), sent to the next sintering process to fire the aluminum alloy, the medium and fine grain coarse seeds and fine crystal seeds are returned to the three-stage and one-stage decomposition tanks, and grown again .
- the classification methods currently used at home and abroad mostly use two-stage gravity sedimentation tanks or two-stage hydrocyclone ⁇ .
- the inventor has developed a cyclone fine classification device in 1987. It is a cylindrical screen equipped with a plastic material in the hydrocyclone housing.] The combination of the hydrocyclone and the arc sieving two sorting equipment, and the application of two classification principles of gravity centrifugation and fine particle sieving, to achieve the purpose of improving the classification efficiency.
- the equipment consists of an overflow cap, an overflow pipe, a feed body, a multi-section cylinder, a cylindrical screen, a flange, a lower body, a cone, an underflow port, a pressure gauge and other components.
- the upper part is a small cylinder (composed of a feed body and an overflow cap, which is where the slurry is fed in and overflowed); the outer layer in the middle is a multi-section cylinder, the inner layer is a cylindrical mesh, and the diameter of the screen is equivalent to
- the diameter of the upper cylinder, the diameter of the multi-section cylinder is 1.3 times the diameter of the upper cylinder, and the lower part is provided with a sieve under the sieve and a top-down sieve product which is at right angles to the multi-section cylinder. It penetrates into the lower body of the sieve and consists of a partially exposed hollow inverted cone.
- the cylinder screen is made of nylon 1010 'raw material through injection molding, and pressed into a rectangular screen (475. 65 X 150mm), the screen holes are stripe, and there are 0.15, 0.3 and 0.
- the sieve bar has a wedge-shaped section.
- the rectangular screen is made into a cylindrical screen by secondary molding.
- the swirling flow has been applied in production, with many advantages, but there are also some disadvantages. That is, the structure of the cylinder net installed in the equipment is unreasonable. Under high-speed swirling, pressure shock and nearly 60'C working conditions Easy to deform or even fall off, frequent replacement. Due to the length and width of the rectangular screen
- the purpose of the present invention is to find a reasonable sieve for fixing the tangerine to improve the difficulty of sieve loading and unloading, reduce the deformation and fall of the sieve, improve the equipment operation rate, and achieve the purpose of improving the classification effect.
- the sieve cage type swirl fine screen of the present invention comprises an overflow cap, an overflow pipe, a feed pipe, a cone, an underflow port, a pressure gauge, and:
- a There is an integral cylinder with an upper stop connected by one end connected to the lower flange of the feed body and the other end connected to the upper flange of the lower screen body;
- a cylindrical screen is installed between the upper end of the whole cylinder and the upper end of the lower sieve inner ring with a cylindrical screen between each flange and three flanges.
- the screw is connected to a cage frame with different number of nodes in height to form a cage screen (ie, a screen cage);
- the cylindrical screen is made by adding 15-30% glass fiber in nylon 1010, and it is best to add 22.3% glass fiber.
- the cylindrical screen can also use polyformaldehyde, and the diameter of the screen cage is 150-900mm. 450mm diameter is the best.
- Figure 2 is a structural diagram of the sieves of the present invention
- the sieve cage type swirling fine sieve of the present invention is composed of an overflow cap 1, an overflow pipe 2, a feed body 3, and an integral cylinder.
- the body 4, the sieve 5, the lower sieve 6, the cone 7, the underflow port 8, the pressure gauge 9 and other main components are composed of each other as shown in FIG. 1 to form a whole. That is, the lower body 6 is used as the base body, and the lower flange of the lower screen body 6 and the upper flange of the cone 7 are fixed by bolts.
- the whole cylinder 4 is placed on the outer ring of the base body from top to bottom, and the flanges of the two are used for the flanges.
- Bolt connection and fixation Place the screen cage 5 in the integral cylinder 4; the upper end is positioned with the upper stop of the integral cylinder 4; the lower end is positioned with the upper stop of the inner ring of the lower screen 6;
- the upper flange of the monolithic cylinder 4 is fixedly connected by bolts, and presses the screen cage 5 to fix it; the upper flange of the feed body 3 and the lower flange of the overflow cap 1 are bolted and fixed
- the overflow pipe 2 is provided; the underflow port 8 is fixed on the lower flange of the cone 7 by bolts.
- the screen cage 5 is composed of the upper flange 10, the middle flange 11, the lower flange 12, the ® cylinder screen 13, and the screw 14 connected to each other, that is, the screw 14 is connected to the upper method.
- the flange 11 and the lower flange 12 are used to fix the cylindrical screen 13.
- the advantages of this structure are: the flanges 10, 11, and 12 are supported by the screw 14 so that the cylindrical screen 13 is not subject to pressure deformation in the height direction and does not fall off due to loose assembly; secondly, the flange plate is no longer needed
- the multi-section cylinder is fixed, but the sieve cage 5 is fixed.
- the upper flange 10 and the lower flange 12 of the cage are installed at the upper stop of the integral cylinder 4 and the upper stop of the lower sieve inner ring. ; Then, several sections of cylindrical screen are assembled into a sieve cage 5 to make the original multi-section cylindrical body into a single-piece whole cylindrical body 4. In this way, it is simple and convenient to change the screen of the cylinder from screen to screen 5 in the past.
- the diameter of the screen cage is generally 150-900mm, and the optimal diameter is 450mm, which can be determined according to the size of the slurry processing capacity. ⁇
- the screen mesh in the screen cage 5 of the present invention is greatly improved in material and structure.
- the connecting mesh of the sieve is five, the thickness of the sieve is 6.5mm, the width is 3.05mm, and the connecting rings at both ends are five, making it more rigid than the original sieve;
- the mesh uses 22.3% glass fiber added to the nylon 1010 raw material to make a reinforced nylon screen, which increases the heat distortion temperature and meets the production requirements of slurry at nearly 60 ° C. Abrasion resistance.
- the screen can also be made of polyformamidine, with a temperature resistance of 85. C or more.
- the under-screen body 6 has a horseshoe shape, and the under-screen outlet pipe on the under-screen body 6 is inclined 45 degrees downward from the horizontal.
- the working process of the sieve cage type swirling fine sieve of the present invention is that the decomposition tank is transported to the feeding port on the feed body 3 of the equipment with a certain pressure ⁇ argon gasified aluminum slurry, and enters the feeding in an approximately involute direction.
- the slurry moves in a circular motion along the wall of the cylinder.
- the centrifugal force of the coarse and medium particles is relatively large. They collide with the cage-shaped screen 5 and the medium particles pass through the screen.
- the outlet pipe is discharged, and the coarse particles that cannot pass through the screen are rotated into the cone 7 along the inner cone wall of the lower sieve body 6, and then discharged through the underflow port 8.
- the fine particles have a small centrifugal force, which is near the central vortex and is affected by the central vortex upward. Movement, discharged by the overflow pipe.
- the sieve cage type cyclone fine sieve is a wet-type fine-granular classification device, which can be used for radon gasification aluminum classification in the Bayer process sandy gasification process, coarse slime recovery, fine slime classification, and can also be applied. It is used for tilling and concentrating fine-grained materials in other industries.
- This equipment is used for sandy gasification, and can meet the requirements of the two-stage decomposition process of agglomeration of fine particles and cohesive growth of coarse particles. Small and alternate technical difficulties make the product's physical properties stable, and the coarse-grained products separated have less than 44 ⁇ in particle size and high solid content; medium-sized products return to the decomposition tank as seed crystals, and have strong activation capacity; fine-grained grades The product has a low solid content.
- This equipment has the advantages of large processing capacity, high classification efficiency, small equipment size, simplified process, low investment, low power consumption, long life of screens and screens, and easy replacement.
- the size of the sieve cage-type swirling fine screen of the present invention is divided by the diameter of the cylindrical screen 5.
- the two layers are docked.
- the equipment assembled by it is a cpl50mm cyclone fine screen. Length of three rectangular screens With 4 layers of butt joints, a sieve cage 5 with a diameter X and a height of q; 450mm X 600mm is formed, and a cp450mm sieve cage type swirl fine screen is assembled with it.
- Feeder 3 of this equipment has an inner diameter of cp450mm, a height of 370mm, a wall thickness of 12mm, an inner diameter of cylinder 4 of cp585mm, a height of 640mm, and a wall thickness of 8mm.
- the diameter of the slurry outlet pipe pl50mm on the lower body 6, the upper mouth of the inverted cone 7 The diameter is cp270mm, and the lower diameter is p80min. Its parts are mainly made of wear-resistant cast iron.
- the p450mm sieve cage type cyclone fine sieve is used to divide the alumina produced by a domestic alumina widely.
- the feeding pressure is 0.06-0.07MPa
- the feeding solid content is about 400g / L.
- the fineness is less than about 20%
- the slurry processing capacity of each equipment is about 200mVh
- the underflow coarse grained product is less than 1/2 than the feed, and the solid content is about doubled. result.
Landscapes
- Cyclones (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Combined Means For Separation Of Solids (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002167053A CA2167053A1 (en) | 1994-05-20 | 1995-05-19 | Cage type cyclone fine screen device |
US08/581,544 US5630514A (en) | 1994-05-20 | 1995-05-19 | Cage type cyclone fine screen device |
BR9505500A BR9505500A (pt) | 1994-05-20 | 1995-05-19 | Dispositivo de tela fina de ciclone do tipo de grade |
AU24438/95A AU684025B2 (en) | 1994-05-20 | 1995-05-19 | Cyclone-type fine screen device |
GB9601129A GB2294892B (en) | 1994-05-20 | 1995-05-19 | Cyclone-type fine screen device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN94211268.7 | 1994-05-20 | ||
CN94211268U CN2203190Y (zh) | 1994-05-20 | 1994-05-20 | 一种筛笼型旋流细筛 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995032057A1 true WO1995032057A1 (fr) | 1995-11-30 |
Family
ID=5047745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN1995/000044 WO1995032057A1 (fr) | 1994-05-20 | 1995-05-19 | Dispositif de criblage fin de type cyclone |
Country Status (7)
Country | Link |
---|---|
US (1) | US5630514A (zh) |
CN (1) | CN2203190Y (zh) |
AU (1) | AU684025B2 (zh) |
BR (1) | BR9505500A (zh) |
CA (1) | CA2167053A1 (zh) |
GB (1) | GB2294892B (zh) |
WO (1) | WO1995032057A1 (zh) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102441529A (zh) * | 2010-10-12 | 2012-05-09 | 株式会社川田 | 微粉去除装置 |
CN105396706A (zh) * | 2015-02-13 | 2016-03-16 | 杨林 | 一种水力单体末煤粗煤泥11种粒级精煤产品旋流器 |
CN114618775A (zh) * | 2022-03-10 | 2022-06-14 | 中材淄博重型机械有限公司 | 一种节能环保无动力复合式选粉机 |
CN117414958A (zh) * | 2023-12-18 | 2024-01-19 | 河南省远洋粉体科技股份有限公司 | 一种铝粉旋风分级装置 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1281424A1 (fr) * | 2001-07-30 | 2003-02-05 | Jean-Denis Rochat | Procédé de séparation d'un fluide |
CN104785448B (zh) * | 2015-04-21 | 2016-06-01 | 吉首大学 | 花生气力输送分选装置 |
CN106079150A (zh) * | 2016-06-30 | 2016-11-09 | 重庆浩立塑胶有限公司 | 送料选料装置 |
CN110420751A (zh) * | 2019-07-11 | 2019-11-08 | 中国恩菲工程技术有限公司 | 用于分级氢氧化铝的装置 |
CN111569537B (zh) * | 2020-05-12 | 2021-12-03 | 宁波锦心节能环保科技有限公司 | 一种旋风除尘方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1807891A (en) * | 1929-05-07 | 1931-06-02 | Albert H Bottorff | Combined collector and separator for feed mills |
US4279743A (en) * | 1979-11-15 | 1981-07-21 | University Of Utah | Air-sparged hydrocyclone and method |
US4986900A (en) * | 1989-04-04 | 1991-01-22 | A. Ahlstrom Corporation | Sectional screen cylinder |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1427031A (en) * | 1921-10-27 | 1922-08-22 | Walter H Stepp | Revolving screen |
US3061098A (en) * | 1960-07-18 | 1962-10-30 | Beloit Iron Works | Centrifugal classifier and stock cleaner |
US3448858A (en) * | 1968-07-25 | 1969-06-10 | Ingersoll Rand Canada | Centrifugal filtering apparatus |
DE2712749A1 (de) * | 1977-03-23 | 1979-02-08 | Finckh Maschf | Sortierer zum sichten von fasersuspensionen |
US5064537A (en) * | 1987-04-16 | 1991-11-12 | The Black Clawson Company | Seamless screen cylinder with laser cut openings |
KR950000040Y1 (ko) * | 1990-02-21 | 1995-01-07 | 가부시기가이샤 사토미 세이사쿠쇼 | 지료정선장치(紙料精選裝置) |
FI88414C (fi) * | 1991-01-30 | 1993-05-10 | Ahlstroem Oy | Anordning foer behandling av fibersuspension |
-
1994
- 1994-05-20 CN CN94211268U patent/CN2203190Y/zh not_active Expired - Fee Related
-
1995
- 1995-05-19 WO PCT/CN1995/000044 patent/WO1995032057A1/zh active Application Filing
- 1995-05-19 GB GB9601129A patent/GB2294892B/en not_active Expired - Fee Related
- 1995-05-19 AU AU24438/95A patent/AU684025B2/en not_active Ceased
- 1995-05-19 BR BR9505500A patent/BR9505500A/pt not_active Application Discontinuation
- 1995-05-19 CA CA002167053A patent/CA2167053A1/en not_active Abandoned
- 1995-05-19 US US08/581,544 patent/US5630514A/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1807891A (en) * | 1929-05-07 | 1931-06-02 | Albert H Bottorff | Combined collector and separator for feed mills |
US4279743A (en) * | 1979-11-15 | 1981-07-21 | University Of Utah | Air-sparged hydrocyclone and method |
US4986900A (en) * | 1989-04-04 | 1991-01-22 | A. Ahlstrom Corporation | Sectional screen cylinder |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102441529A (zh) * | 2010-10-12 | 2012-05-09 | 株式会社川田 | 微粉去除装置 |
CN102441529B (zh) * | 2010-10-12 | 2016-09-28 | 株式会社川田 | 微粉去除装置 |
CN105396706A (zh) * | 2015-02-13 | 2016-03-16 | 杨林 | 一种水力单体末煤粗煤泥11种粒级精煤产品旋流器 |
CN114618775A (zh) * | 2022-03-10 | 2022-06-14 | 中材淄博重型机械有限公司 | 一种节能环保无动力复合式选粉机 |
CN117414958A (zh) * | 2023-12-18 | 2024-01-19 | 河南省远洋粉体科技股份有限公司 | 一种铝粉旋风分级装置 |
CN117414958B (zh) * | 2023-12-18 | 2024-03-08 | 河南省远洋粉体科技股份有限公司 | 一种铝粉旋风分级装置 |
Also Published As
Publication number | Publication date |
---|---|
AU2443895A (en) | 1995-12-18 |
GB2294892B (en) | 1998-05-20 |
BR9505500A (pt) | 1997-08-12 |
CA2167053A1 (en) | 1995-11-30 |
CN2203190Y (zh) | 1995-07-12 |
GB9601129D0 (en) | 1996-03-20 |
GB2294892A (en) | 1996-05-15 |
US5630514A (en) | 1997-05-20 |
AU684025B2 (en) | 1997-11-27 |
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