JPS56117853A - Method for adjusting moisture of grains and fine particles - Google Patents
Method for adjusting moisture of grains and fine particlesInfo
- Publication number
- JPS56117853A JPS56117853A JP916980A JP916980A JPS56117853A JP S56117853 A JPS56117853 A JP S56117853A JP 916980 A JP916980 A JP 916980A JP 916980 A JP916980 A JP 916980A JP S56117853 A JPS56117853 A JP S56117853A
- Authority
- JP
- Japan
- Prior art keywords
- moisture
- grains
- fine particles
- molding sand
- temp
- 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
Abstract
PURPOSE: To adjust the moisture of grains and fine particles such as molding sand continuously and accurately by measuring the moisture content and temp. of grains and fine particles as well as their mixture and controlling the additive amount of insufficient moisture with respect to a target moisture content.
CONSTITUTION: Grains and fine particles such as molding sand in a storage tank 1 are supplied continuously at a fixed rate into a sand mill 3. After a fixed time since charging of a required amount of molding sand, the temp. and moisture content of the molding sand prior to mixing flowing on a belt conveyor 2 and the temp. and moisture content of the molding sand after mixing the sand mill 3 are measured with respective thermometers 11, 13, and moisture meters 12, 14, and these are inputted to a microcomputer 15. The computer 15 converts the input signals from these to numerical values and obtains the additive amount of moisture required for controlling the moisture to a target moisture contet. According to this additive amount of required moisture, the computer 15 controls the revolution of a motor 6 which drives a water supply pump 5. Thereby, the accuracy of moisture controlling is improved to about ≤±0.1%.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP916980A JPS56117853A (en) | 1980-01-29 | 1980-01-29 | Method for adjusting moisture of grains and fine particles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP916980A JPS56117853A (en) | 1980-01-29 | 1980-01-29 | Method for adjusting moisture of grains and fine particles |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56117853A true JPS56117853A (en) | 1981-09-16 |
Family
ID=11713085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP916980A Pending JPS56117853A (en) | 1980-01-29 | 1980-01-29 | Method for adjusting moisture of grains and fine particles |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56117853A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56117855A (en) * | 1980-01-30 | 1981-09-16 | Hitachi Metals Ltd | Method for adjusting moisture of powder and granules |
JPS56117854A (en) * | 1980-01-30 | 1981-09-16 | Hitachi Metals Ltd | Method for adjusting moisture of grains and fine particles |
JPS58212834A (en) * | 1982-06-02 | 1983-12-10 | Komatsu Ltd | Measuring method of water to be added in sand mill for molding sand |
JPS6114044A (en) * | 1984-06-29 | 1986-01-22 | Sintokogio Ltd | Device for controlled rate of supplying moisture to molding sand mill |
US5386868A (en) * | 1993-12-10 | 1995-02-07 | The Frog, Switch & Manufacturing Co. | Apparatus and method of cooling refractory sand based on dew point temperature |
JP2015519200A (en) * | 2012-06-13 | 2015-07-09 | 新東工業株式会社 | Casting sand kneading adjustment method |
-
1980
- 1980-01-29 JP JP916980A patent/JPS56117853A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56117855A (en) * | 1980-01-30 | 1981-09-16 | Hitachi Metals Ltd | Method for adjusting moisture of powder and granules |
JPS56117854A (en) * | 1980-01-30 | 1981-09-16 | Hitachi Metals Ltd | Method for adjusting moisture of grains and fine particles |
JPS58212834A (en) * | 1982-06-02 | 1983-12-10 | Komatsu Ltd | Measuring method of water to be added in sand mill for molding sand |
JPS6114044A (en) * | 1984-06-29 | 1986-01-22 | Sintokogio Ltd | Device for controlled rate of supplying moisture to molding sand mill |
US5386868A (en) * | 1993-12-10 | 1995-02-07 | The Frog, Switch & Manufacturing Co. | Apparatus and method of cooling refractory sand based on dew point temperature |
JP2015519200A (en) * | 2012-06-13 | 2015-07-09 | 新東工業株式会社 | Casting sand kneading adjustment method |
US10144054B2 (en) | 2012-06-13 | 2018-12-04 | Sintokogio, Ltd. | Mixing and water adjusting method for foundry sand |
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