JPS56117854A - Method for adjusting moisture of grains and fine particles - Google Patents
Method for adjusting moisture of grains and fine particlesInfo
- Publication number
- JPS56117854A JPS56117854A JP962780A JP962780A JPS56117854A JP S56117854 A JPS56117854 A JP S56117854A JP 962780 A JP962780 A JP 962780A JP 962780 A JP962780 A JP 962780A JP S56117854 A JPS56117854 A JP S56117854A
- 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
Landscapes
- Mold Materials And Core Materials (AREA)
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 and the temp. of 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. of the molding sand after mixing in the sand mill 3 are measured with respective thermometers 11, 13, and a moisture meter 12, and these are inputted to a microcomputer 14. The computer 14 converts the input signals to numerical values and obtains the additive amount of moisture necessary for adjusting to a target moisture content by using the mixing treatment amount of the grains and fine particles. According to this additive amount of required moisture, the computer 14 controls the revolution of a motor 6 which drives a water supply pump 5.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP962780A JPS56117854A (en) | 1980-01-30 | 1980-01-30 | Method for adjusting moisture of grains and fine particles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP962780A JPS56117854A (en) | 1980-01-30 | 1980-01-30 | Method for adjusting moisture of grains and fine particles |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56117854A true JPS56117854A (en) | 1981-09-16 |
Family
ID=11725488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP962780A Pending JPS56117854A (en) | 1980-01-30 | 1980-01-30 | Method for adjusting moisture of grains and fine particles |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56117854A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58107248A (en) * | 1981-12-21 | 1983-06-25 | Sintokogio Ltd | Method and device for treatment of molding sand |
JPS5942156A (en) * | 1982-08-31 | 1984-03-08 | Sintokogio Ltd | Method and device for controlling amount of moisture to be added to molding sand |
JPS5987950A (en) * | 1982-11-12 | 1984-05-21 | Sintokogio Ltd | Method for adjusting moisture in molding sand |
DE3639268A1 (en) * | 1985-11-22 | 1987-05-27 | Hitachi Ltd | CONTROL METHOD FOR AN AIR SEPARATION SYSTEM |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56117853A (en) * | 1980-01-29 | 1981-09-16 | Hitachi Metals Ltd | Method for adjusting moisture of grains and fine particles |
-
1980
- 1980-01-30 JP JP962780A patent/JPS56117854A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56117853A (en) * | 1980-01-29 | 1981-09-16 | Hitachi Metals Ltd | Method for adjusting moisture of grains and fine particles |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58107248A (en) * | 1981-12-21 | 1983-06-25 | Sintokogio Ltd | Method and device for treatment of molding sand |
JPS5942156A (en) * | 1982-08-31 | 1984-03-08 | Sintokogio Ltd | Method and device for controlling amount of moisture to be added to molding sand |
JPS6363297B2 (en) * | 1982-08-31 | 1988-12-07 | ||
JPS5987950A (en) * | 1982-11-12 | 1984-05-21 | Sintokogio Ltd | Method for adjusting moisture in molding sand |
DE3639268A1 (en) * | 1985-11-22 | 1987-05-27 | Hitachi Ltd | CONTROL METHOD FOR AN AIR SEPARATION SYSTEM |
DE3639268C2 (en) * | 1985-11-22 | 1990-12-20 | Hitachi, Ltd., Tokio/Tokyo, Jp |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1295456A (en) | ||
ATE23288T1 (en) | METHOD AND DEVICE FOR THE MANUFACTURE OF MORTAR. | |
JPS56117853A (en) | Method for adjusting moisture of grains and fine particles | |
JPS56117854A (en) | Method for adjusting moisture of grains and fine particles | |
US3324566A (en) | Structure for and method of cooling granular material | |
JPS57719A (en) | Control system for measurement and kneading of raw material such as ready mixed concrete and asphalt concrete | |
JPS57209743A (en) | Method and device for treating recovered sand | |
FR2401005A1 (en) | Water control system for concrete making plant - has sensor to detect depth of cement-sand mix flowing down chute and regulate water quantity required | |
JPS56130296A (en) | Controlling of airflow in aeration tank | |
JPS56117855A (en) | Method for adjusting moisture of powder and granules | |
ES8102836A1 (en) | Method and apparatus for mixing or blending of slurries. | |
US3344921A (en) | Method and apparatus for measurement and control of moisture | |
GB1503298A (en) | Plant for producing a slurry of regulated solids content | |
JPS5713016A (en) | Transfer rate controlling device | |
JPS57103017A (en) | Method for controlling rate of supply of liquid, powder, granule or their mixture | |
JPS5493848A (en) | Control system for controlling coagulant supplying rate in water cleaning process | |
JPS5699046A (en) | Measuring and controlling method for moisture content of reconditioned molding sand or the like | |
JPS5772016A (en) | Fall correction method for constant quanitity detecting balance | |
JPS56155412A (en) | Method for controlling flow rate by metering hopper | |
JPS5695400A (en) | Slurry concentration controller | |
JPS5791732A (en) | Method for granulating powder stock material | |
GB1517126A (en) | Mixing apparatus | |
SU1570773A1 (en) | Apparatus for controlling the process of grinding material in mill with introduction of surfactant | |
JPS55127193A (en) | Controlling method of returned sludge | |
JPS5772015A (en) | Flow rate control method for constant feed wares |