GB1446575A - Method of and apparatus for wet screening finely divided solids - Google Patents
Method of and apparatus for wet screening finely divided solidsInfo
- Publication number
- GB1446575A GB1446575A GB4594673A GB4594673A GB1446575A GB 1446575 A GB1446575 A GB 1446575A GB 4594673 A GB4594673 A GB 4594673A GB 4594673 A GB4594673 A GB 4594673A GB 1446575 A GB1446575 A GB 1446575A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screen
- pulp
- wet screening
- screening
- finely divided
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- 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
- B07B1/18—Drum screens
- B07B1/20—Stationary drums with moving interior agitators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0012—Settling tanks making use of filters, e.g. by floating layers of particulate material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0018—Separation of suspended solid particles from liquids by sedimentation provided with a pump mounted in or on a settling tank
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
- B01D21/0042—Baffles or guide plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2405—Feed mechanisms for settling tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2427—The feed or discharge opening located at a distant position from the side walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/245—Discharge mechanisms for the sediments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/30—Control equipment
- B01D21/34—Controlling the feed distribution; Controlling the liquid level ; Control of process parameters
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2221/00—Applications of separation devices
- B01D2221/04—Separation devices for treating liquids from earth drilling, mining
-
- 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
- B07B2230/00—Specific aspects relating to the whole B07B subclass
- B07B2230/01—Wet separation
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
1446575 Centrifugal separators; wet screening apparatus MURSKAUSKONE OY 2 Oct 1973 45946/73 Headings BID and B2P Apparatus for wet screening finely divided solids in pulp comprises: a stationary vessel 1 having a cylindrical upper. Section 2 and a frusto-conical lower section 3; a cylindrical screen 4 in the upper section 2; a rotor 7 located at the junction of the two sections 2, 3, and in use forming a pulp ring travelling at a constant angular speed in a screening zone near the screen surface; means 9 of introducing a pulp to be screened; means 10 to collect a fine portion which has passed through the screen 4; means 12, 14 to collect a coarse portion which has settled and to return a part of the coarse portion to the screening zone. The rotor 7 may be in the form of a disc or a cone and may have vertical sweeper blades 8. There may be overflow channels 15 which allow an uppermost finest layer of pulp to overflow into the fine portion outlet 10. A mechanism (not shown) may be used to vibrate the screen 4, possibly under the control of a mixture level sensor. The preferred speed of the pulp over the screen is said to be 0.5 to 5 metres/second. An example is given of wet screening cyclone sand at a rate of 13.2 dry metre tons per hour using a screen drum with a slot width of 500 microns.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI273372 | 1972-10-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1446575A true GB1446575A (en) | 1976-08-18 |
Family
ID=8507522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4594673A Expired GB1446575A (en) | 1972-10-04 | 1973-10-02 | Method of and apparatus for wet screening finely divided solids |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS49100650A (en) |
CA (1) | CA976112A (en) |
DD (1) | DD107607A5 (en) |
DE (1) | DE2349941A1 (en) |
GB (1) | GB1446575A (en) |
SE (1) | SE388131B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4923600A (en) * | 1987-08-28 | 1990-05-08 | Lenox Institute For Research, Inc. | Water clarification system adapted for removing particulate matter of greater than a predetermined size |
CN110479673B (en) * | 2019-08-17 | 2020-12-18 | 温州瓯厦建设有限公司 | Contrarotating centrifugal sand cleaning machine |
CN112934456A (en) * | 2021-01-27 | 2021-06-11 | 徐全军 | Light material wet process multilayer splitter |
CN113484203B (en) * | 2021-07-27 | 2022-11-29 | 江西安驰新能源科技有限公司 | Method for evaluating screening condition of lithium battery negative electrode slurry |
-
1973
- 1973-10-01 SE SE7313302A patent/SE388131B/en unknown
- 1973-10-02 GB GB4594673A patent/GB1446575A/en not_active Expired
- 1973-10-03 CA CA182,557A patent/CA976112A/en not_active Expired
- 1973-10-04 JP JP48111891A patent/JPS49100650A/ja active Pending
- 1973-10-04 DD DD173868A patent/DD107607A5/en unknown
- 1973-10-04 DE DE19732349941 patent/DE2349941A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DD107607A5 (en) | 1974-08-12 |
DE2349941A1 (en) | 1974-04-11 |
CA976112A (en) | 1975-10-14 |
JPS49100650A (en) | 1974-09-24 |
SE388131B (en) | 1976-09-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |