GB1064943A - Method and apparatus for measuring the bulk density of material - Google Patents
Method and apparatus for measuring the bulk density of materialInfo
- Publication number
- GB1064943A GB1064943A GB521363A GB521363A GB1064943A GB 1064943 A GB1064943 A GB 1064943A GB 521363 A GB521363 A GB 521363A GB 521363 A GB521363 A GB 521363A GB 1064943 A GB1064943 A GB 1064943A
- Authority
- GB
- United Kingdom
- Prior art keywords
- conveyer
- coal
- measuring
- volume
- unit length
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/02—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Control Of Conveyors (AREA)
Abstract
1,064,943. Measuring density electrically. COAL INDUSTRY (PATENTS) Ltd. Dec.13, 1963 [Nov.16, 1962(2); Feb.8, 1963], Nos.43436/62, 43438/62 and 5213/63. Heading G1N. [Also in Division G3] The density of loose solid material such as coal is measured by maintaining constant the volume thereof fed on to unit length of a conveyer 22, and measuring the weight per unit length. The output of an electrical load cell 29, measuring the weight, may be corrected for moisture content of the coal by a signal from a moisture gauge 27. The feed of material on to the conveyer is maintained constant by deriving an error signal e from a measured value of volume (7, Figs. 2, 4, not shown) and a preset value X, and using the signal e to control either the conveyer speed (15, Fig.4 not shown) or a vibrating feeder (5, Fig. 2 not shown). The level of the coal in the hopper (1, Fig. 3 not shown) may be measured (at 12) and kept constant by controlling (at 13) the conveyer speed, to maintain a constant volume on the conveyer irrespective of irregularities in the supply of material to the hopper. The volume per unit length may alternatively be determined by selection of the size and shape of aperture plates 26, Fig. 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB521363A GB1064943A (en) | 1963-02-08 | 1963-02-08 | Method and apparatus for measuring the bulk density of material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB521363A GB1064943A (en) | 1963-02-08 | 1963-02-08 | Method and apparatus for measuring the bulk density of material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1064943A true GB1064943A (en) | 1967-04-12 |
Family
ID=9791831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB521363A Expired GB1064943A (en) | 1963-02-08 | 1963-02-08 | Method and apparatus for measuring the bulk density of material |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1064943A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0110423A2 (en) * | 1982-12-03 | 1984-06-13 | General Signal Corporation | System for generating dry coal weight signal for coal feeder and control system based thereon |
| EP0898154B1 (en) * | 1997-08-20 | 2004-11-03 | Kaliwaal-Bijland B.V. | Method of determining the quantity of liquid in granulate, as well as a method of dosing a granulate using a correction for the quantity of liquid |
| CN112919006A (en) * | 2021-03-29 | 2021-06-08 | 辽宁工程技术大学 | Coal passing density detection device and use method thereof |
-
1963
- 1963-02-08 GB GB521363A patent/GB1064943A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0110423A2 (en) * | 1982-12-03 | 1984-06-13 | General Signal Corporation | System for generating dry coal weight signal for coal feeder and control system based thereon |
| EP0110423A3 (en) * | 1982-12-03 | 1985-12-04 | General Signal Corporation | System for generating dry coal weight signal for coal feeder and control system based thereon |
| EP0898154B1 (en) * | 1997-08-20 | 2004-11-03 | Kaliwaal-Bijland B.V. | Method of determining the quantity of liquid in granulate, as well as a method of dosing a granulate using a correction for the quantity of liquid |
| CN112919006A (en) * | 2021-03-29 | 2021-06-08 | 辽宁工程技术大学 | Coal passing density detection device and use method thereof |
| CN112919006B (en) * | 2021-03-29 | 2024-06-11 | 辽宁工程技术大学 | Coal passing density detection device and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3430751A (en) | Variable speed feeder control | |
| ES449914A1 (en) | Apparatus for feeding and proportioning pulverulent materials | |
| DE3481300D1 (en) | DEVICE FOR DELIVERING A PREDICTED WEIGHT PER TIME UNIT OF A NON-FREE-FLOWING GRAIN MATERIAL. | |
| MXPA02010811A (en) | Rotary pocketed weigh feeder. | |
| GB1375798A (en) | ||
| GB1508144A (en) | Feeder apparatus for fibrous materials | |
| GB1064943A (en) | Method and apparatus for measuring the bulk density of material | |
| FR2513604B1 (en) | METHOD AND DEVICE FOR CONTINUOUSLY FEEDING MATERIALS FROM THE POWDERY STATE TO THE STATE OF COARSE GRAIN | |
| ES8503446A1 (en) | Method of measuring and regulating the filling level of materials in a container. | |
| US2340030A (en) | Weighing conveyer | |
| GB1279184A (en) | Apparatus for loading hopper craft | |
| GB1094157A (en) | Vibratory feeder | |
| GB1159977A (en) | Method of and Apparatus for Feeding the Mills of a Pulverised-Coal Furnace at a Constant Rate | |
| ES418081A1 (en) | Feeding apparatus | |
| GB830331A (en) | Improvements relating to apparatus for filling sacks or the like containers | |
| ES8400344A1 (en) | Bridge scraper for direct material feeding | |
| GB1108422A (en) | Improvements relating to a method of and apparatus for feeding materials | |
| GB964288A (en) | Improvements in or relating to vibratory feeding devices for discrete or granular solid materials | |
| GB972056A (en) | An improved process for controlling the charging of a tube mill | |
| ES388096A1 (en) | Apparatus for supplying flowable material | |
| FR2041432A5 (en) | Grain size distribution determination for a - ground material | |
| SU386258A1 (en) | ||
| ES336789A1 (en) | Material feeding apparatus with capacitive control | |
| JPS571920A (en) | Weighing apparatus | |
| SU557828A1 (en) | Sorting device |