GB571791A - Method of and electrical apparatus for sorting granular material according to its moisture content - Google Patents
Method of and electrical apparatus for sorting granular material according to its moisture contentInfo
- Publication number
- GB571791A GB571791A GB2118543A GB2118543A GB571791A GB 571791 A GB571791 A GB 571791A GB 2118543 A GB2118543 A GB 2118543A GB 2118543 A GB2118543 A GB 2118543A GB 571791 A GB571791 A GB 571791A
- Authority
- GB
- United Kingdom
- Prior art keywords
- moisture content
- granular material
- drum
- hopper
- pulley
- 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
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/344—Sorting according to other particular properties according to electric or electromagnetic properties
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
571,791. Determining physical qualities of materials; resistance measurements. OXLEY, T. A., and HENDERSON, F. Y. Dec. 17, 1943, No. 21185. [Class 37] Granular material is sorted according to its moisture content by feeding a stream of granular material of predetermined cross-section, subjecting it to a compressing action to obtain a constant packing factor, and causing the compressed material to pass between electrodes arranged in a circuit so that variation in the moisture content causes the actuation of means by which the material is delivered to a plurality of points according to its moisture content. The spout 3 of a hopper 2 is provided with a slide 4 adapted to regulate the rate at which the granular material is delivered to the surface of a conveying drum 5. This is encircled by a copper or brass plate engaged by a brush 7 connected to an oscillator 8. The drum 5 is secured to a shaft 10 which also carries two grooved pulleys 11, one of which is engaged by a belt 12 driven by a motor 14. The other pulley 11 is connected by a crossed belt 15 with a pulley 16 by which a roller 17 is driven at the same surface speed as the drum. The roller 17 compresses the material issuing from the hopper and supported by the drum while leaving it free laterally in order to obtain a constant packing factor for the granular material, which then passes below an electrode 20. This electrode is connected through a rectifier 22 to an amplifier 23, the output of which is connected to a relay 26 by means of which a hinged flap is moved between two positions so as to direct material from a shoot 43 into one or other of two shoots 44, 44a according to whether its moisture content is above or below a predetermined value. Specification 559,240 is. referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2118543A GB571791A (en) | 1943-12-17 | 1943-12-17 | Method of and electrical apparatus for sorting granular material according to its moisture content |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2118543A GB571791A (en) | 1943-12-17 | 1943-12-17 | Method of and electrical apparatus for sorting granular material according to its moisture content |
Publications (1)
Publication Number | Publication Date |
---|---|
GB571791A true GB571791A (en) | 1945-09-10 |
Family
ID=10158611
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2118543A Expired GB571791A (en) | 1943-12-17 | 1943-12-17 | Method of and electrical apparatus for sorting granular material according to its moisture content |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB571791A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101817003A (en) * | 2010-04-21 | 2010-09-01 | 宋永彪 | Roller size classifier |
CN107716345A (en) * | 2017-09-30 | 2018-02-23 | 昆明理工大学 | A kind of strawberry sterilizing sorting unit |
-
1943
- 1943-12-17 GB GB2118543A patent/GB571791A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101817003A (en) * | 2010-04-21 | 2010-09-01 | 宋永彪 | Roller size classifier |
CN107716345A (en) * | 2017-09-30 | 2018-02-23 | 昆明理工大学 | A kind of strawberry sterilizing sorting unit |
CN107716345B (en) * | 2017-09-30 | 2023-09-26 | 昆明理工大学 | Strawberry sterilizing and sorting device |
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