DE59404158D1 - Method and device for grain size analysis in the fine and fine grain range - Google Patents
Method and device for grain size analysis in the fine and fine grain rangeInfo
- Publication number
- DE59404158D1 DE59404158D1 DE59404158T DE59404158T DE59404158D1 DE 59404158 D1 DE59404158 D1 DE 59404158D1 DE 59404158 T DE59404158 T DE 59404158T DE 59404158 T DE59404158 T DE 59404158T DE 59404158 D1 DE59404158 D1 DE 59404158D1
- Authority
- DE
- Germany
- Prior art keywords
- fine
- screen fabric
- grain
- size analysis
- screen
- 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 - Lifetime
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
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/04—Control arrangements
-
- 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
-
- 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
- B07B1/50—Cleaning
- B07B1/55—Cleaning with fluid jets
-
- 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
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/14—Details or accessories
- B07B13/18—Control
-
- 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
- B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
- B07B4/08—Separating solids from solids by subjecting their mixture to gas currents while the mixtures are supported by sieves, screens, or like mechanical elements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sampling And Sample Adjustment (AREA)
- Adjustment And Processing Of Grains (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
In order to provide a method for grain-size analysis in the fine and very fine range by means of a gas-jet screen, the screening material being delivered onto the screen fabric, a gas jet being blown through the screen fabric and the screening material by means of a slit nozzle (2) rotating underneath the screen fabric, fine fractions being entrained by the gas stream and being transported by the latter in the opposite direction through the screen fabric to a discharge orifice located underneath the screen fabric, the said method allowing exact and accurately reproducible measured values, it is proposed that the gas stream be recorded quantitatively and be kept constant over the course of the screening operation. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4339834A DE4339834A1 (en) | 1993-11-23 | 1993-11-23 | Method and device for grain size analysis in the fine and fine grain range |
Publications (1)
Publication Number | Publication Date |
---|---|
DE59404158D1 true DE59404158D1 (en) | 1997-10-30 |
Family
ID=6503193
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4339834A Withdrawn DE4339834A1 (en) | 1993-11-23 | 1993-11-23 | Method and device for grain size analysis in the fine and fine grain range |
DE59404158T Expired - Lifetime DE59404158D1 (en) | 1993-11-23 | 1994-08-20 | Method and device for grain size analysis in the fine and fine grain range |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4339834A Withdrawn DE4339834A1 (en) | 1993-11-23 | 1993-11-23 | Method and device for grain size analysis in the fine and fine grain range |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0654308B1 (en) |
JP (1) | JP2787656B2 (en) |
AT (1) | ATE158519T1 (en) |
DE (2) | DE4339834A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19830050A1 (en) * | 1998-07-04 | 2000-01-13 | Hosokawa Alpine Ag & Co | Operating method for air jet sifting device for particle size analysis |
DE102010015364B4 (en) * | 2010-04-17 | 2013-06-27 | Hosokawa Alpine Ag | Air Jet Sieve |
CN105963896B (en) * | 2016-06-28 | 2021-06-15 | 广威消防科技有限公司 | Fire control shower nozzle examination water qualification rate sieving mechanism |
CN109201174B (en) * | 2018-09-16 | 2020-11-20 | 义乌市添诚科技有限公司 | Coal crushing detection method, coal crushing adjustment method and coal crusher |
CN109201175B (en) * | 2018-09-16 | 2020-11-24 | 义乌市添诚科技有限公司 | Coal pulverizer |
KR20210016716A (en) | 2019-08-05 | 2021-02-17 | 삼성전자주식회사 | Particulate matter measurement apparatus and method |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2414686A1 (en) * | 1974-03-27 | 1975-10-16 | Allgaier Werke Gmbh | Siever with pneumatic material delivery - and pneumatic counterflow sieve-cleaning, maintaining single-grain max layer |
GB2021442B (en) * | 1978-05-26 | 1982-09-02 | Pozzolanic Ltd | Sieving |
DE3513986A1 (en) * | 1985-04-18 | 1986-10-30 | Hazemag Dr. E. Andreas GmbH & Co, 4400 Münster | CLASSIFICATION AND VISIBILITY SYSTEM FOR THE SEPARATION OF UNWANTED GOOD PARTICLES FROM A BULK MATERIAL |
US4678560A (en) * | 1985-08-15 | 1987-07-07 | Norton Company | Screening device and process |
-
1993
- 1993-11-23 DE DE4339834A patent/DE4339834A1/en not_active Withdrawn
-
1994
- 1994-08-20 AT AT94113026T patent/ATE158519T1/en not_active IP Right Cessation
- 1994-08-20 EP EP94113026A patent/EP0654308B1/en not_active Expired - Lifetime
- 1994-08-20 DE DE59404158T patent/DE59404158D1/en not_active Expired - Lifetime
- 1994-11-17 JP JP6318982A patent/JP2787656B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH07198581A (en) | 1995-08-01 |
ATE158519T1 (en) | 1997-10-15 |
EP0654308B1 (en) | 1997-09-24 |
JP2787656B2 (en) | 1998-08-20 |
DE4339834A1 (en) | 1995-05-24 |
EP0654308A1 (en) | 1995-05-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |