JPS56117854A - Method for adjusting moisture of grains and fine particles - Google Patents

Method for adjusting moisture of grains and fine particles

Info

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
Application number
JP962780A
Other languages
Japanese (ja)
Inventor
Kazuo Oda
Masamichi Ozaki
Tatsusaburo Ishizaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Proterial Ltd
Original Assignee
Hitachi Metals Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP962780A priority Critical patent/JPS56117854A/en
Publication of JPS56117854A publication Critical patent/JPS56117854A/en
Pending legal-status Critical Current

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  • 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
JP962780A 1980-01-30 1980-01-30 Method for adjusting moisture of grains and fine particles Pending JPS56117854A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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