JPS55141669A - Moisture content measuring method of powder and granule and its apparatus - Google Patents
Moisture content measuring method of powder and granule and its apparatusInfo
- Publication number
- JPS55141669A JPS55141669A JP4924679A JP4924679A JPS55141669A JP S55141669 A JPS55141669 A JP S55141669A JP 4924679 A JP4924679 A JP 4924679A JP 4924679 A JP4924679 A JP 4924679A JP S55141669 A JPS55141669 A JP S55141669A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- granules
- measured
- moisture contents
- granule
- 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.)
- Pending
Links
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
PURPOSE: To make the method and apparatus of measurement simple by using the relation diagrams of the temperature differences versus moisture contents of powder and granules before and after heating.
CONSTITUTION: A trough 7 assembled with a partition plate 9, horizontal plate 12, infrared ray heater 25, thermometer 23 and air feed pipe 17 is disposed on a conveying vibration mechanism 1 and further a powder and granule constant volume feeder 18 assembled with a thermometer 22 is disposed thereabove. While the powder and granules to be measured, such as molding sand, are being fed at varying feed rates and air feed rates, the relation diagrams aWc of the temperature differences Td before and after the respective heatings and moisture contents P are made. Thereafter, the powder and granules to be measured are supplied and the temperature difference before and after the heating is measured. The moisture contents thereof are calculated by using the relation diagrams aWc having beforehand made. Thereby, the highly accurate measurement without receiving the effect of organic contents, temperature, colors, etc. of the powder and granules may be readily performed with the simple apparatus.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4924679A JPS55141669A (en) | 1979-04-20 | 1979-04-20 | Moisture content measuring method of powder and granule and its apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4924679A JPS55141669A (en) | 1979-04-20 | 1979-04-20 | Moisture content measuring method of powder and granule and its apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55141669A true JPS55141669A (en) | 1980-11-05 |
Family
ID=12825490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4924679A Pending JPS55141669A (en) | 1979-04-20 | 1979-04-20 | Moisture content measuring method of powder and granule and its apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55141669A (en) |
-
1979
- 1979-04-20 JP JP4924679A patent/JPS55141669A/en active Pending
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