METHOD OF CONTROL FOR PRECOOLING OF CASTING CONCRETE

PROBLEM TO BE SOLVED: To make a cooling unit smaller and simpler, achieve a more accurate temperature control for precooling and realize an easier method of control. SOLUTION: The method of control for precooling of casting concrete comprises pouring ready-mixed concrete into the drum 2 of the truck...

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Main Authors NONOME HIROSHI, SOFUE SHUICHI, INABA SHINYA, HASHIMOTO MASAAKI, NARITA TADAYOSHI, TANAKA TORU
Format Patent
LanguageEnglish
Published 31.05.2007
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Abstract PROBLEM TO BE SOLVED: To make a cooling unit smaller and simpler, achieve a more accurate temperature control for precooling and realize an easier method of control. SOLUTION: The method of control for precooling of casting concrete comprises pouring ready-mixed concrete into the drum 2 of the truck agitator 1, spraying a liquified gas through liquified gas spray nozzle 3 in the drum 2 while agitating, calculating the relationship between the temperature drop of the ready-mixed concrete and the amount of the sprayed liquified gas by adjusting the amount of the spray, setting the surface temperature detection spots 4, 4, ... on more than one spots on the surface of the drum 2 for detecting the temperatures corresponding to the temperature of the ready-mixed concrete in the drum 2 to enable a convertive determination of the temperature of the ready-mixed concrete from the surface temperatures of the surface temperature detection spots 4, 4, ... measured by non-contact thermometers and controlling the amount of the liquified gas sprayed into the drum 2 from the calculated values and the measured values of the surface temperatures to obtain a desired precooling temperature. COPYRIGHT: (C)2007,JPO&INPIT
AbstractList PROBLEM TO BE SOLVED: To make a cooling unit smaller and simpler, achieve a more accurate temperature control for precooling and realize an easier method of control. SOLUTION: The method of control for precooling of casting concrete comprises pouring ready-mixed concrete into the drum 2 of the truck agitator 1, spraying a liquified gas through liquified gas spray nozzle 3 in the drum 2 while agitating, calculating the relationship between the temperature drop of the ready-mixed concrete and the amount of the sprayed liquified gas by adjusting the amount of the spray, setting the surface temperature detection spots 4, 4, ... on more than one spots on the surface of the drum 2 for detecting the temperatures corresponding to the temperature of the ready-mixed concrete in the drum 2 to enable a convertive determination of the temperature of the ready-mixed concrete from the surface temperatures of the surface temperature detection spots 4, 4, ... measured by non-contact thermometers and controlling the amount of the liquified gas sprayed into the drum 2 from the calculated values and the measured values of the surface temperatures to obtain a desired precooling temperature. COPYRIGHT: (C)2007,JPO&INPIT
Author TANAKA TORU
SOFUE SHUICHI
INABA SHINYA
NARITA TADAYOSHI
HASHIMOTO MASAAKI
NONOME HIROSHI
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– fullname: TANAKA TORU
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TODA CONSTR CO LTD
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Snippet PROBLEM TO BE SOLVED: To make a cooling unit smaller and simpler, achieve a more accurate temperature control for precooling and realize an easier method of...
SourceID epo
SourceType Open Access Repository
SubjectTerms ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
PERFORMING OPERATIONS
PREPARING CLAY
PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL,e.g. PLASTER
REFRACTORIES
SLAG
TRANSPORTING
TREATMENT OF NATURAL STONE
WORKING CEMENT, CLAY, OR STONE
Title METHOD OF CONTROL FOR PRECOOLING OF CASTING CONCRETE
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