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61. 发明专利

JPH04122820A METHOD FOR IMPROVING ACCURACY FOR METERING ICE 失效
公开(公告)号：JPH04122820A
公开(公告)日：1992-04-23
申请号：JP24538390
申请日：1990-09-14
申请人： ISHIKAWAJIMA CONSTR MACH
发明人： TABUCHI HIROSHI , DOI HEIJI , KORI TAKANOBU
IPC分类号： G01G13/08 , B28C7/12 , G01G17/00 , G01G17/04
摘要： PURPOSE:To enable metering accuracy to be improved by metering amount of ice to transferred by a screw conveyer in a large-amount throwing region with a metering valve and by compensating of cold water. CONSTITUTION:Approximately up to 90 % of a target metering value and the remainder are divided and the former and the latter are named a large- amount throwing region. In the large-amount throwing region, ice carried by a screw conveyer 4 is metered by a metering value 5 and is thrown continuously. In the small-amount throwing region, cold water which is carried by a cold water pipe 8 is metered by a metering valve 9 and is thrown, a metered weight of cold water which is thrown instead of ice at the small-amount throwing regionis added to the metered weight of ice which is thrown in the large-amount throwing region, thus achieving a target metering value. Therefore, metering can be made accurately at the small-amount throwing region for improving accuracy of actual metering value and reducing error with the target metering value.

62. 发明专利

JPH03281206A KNEADING OF CONCRETE 失效
公开(公告)号：JPH03281206A
公开(公告)日：1991-12-11
申请号：JP8115090
申请日：1990-03-30
申请人： HAZAMA GUMI , TEISAN KK , WATARI SHIYOUKAI KK
发明人： MINATO RYUJIRO , ASO KIMIHIRO , ISHIGURO NOBUO , HAGA AKIRA , TAKAGI AKIRA
IPC分类号： B28C7/12
摘要： PURPOSE:To prepare economically a concrete with high quality using ice blocks by a method wherein a liquefied low temp. gas is injected in water to generated ice blocks as a pseudo-solid in water and the ratio of the ice blocks in water is adjusted to feed the mixture in a mixer and it is kneaded with a cement, an aggregate and other concrete materials. CONSTITUTION:Ice blocks as a pseudo-solid, namely, ice sherbet type ice blocks formed by injecting a liquefied nitrogen gas 9 in water in a water bath 5 are sent in an ice separator 1 to separate a set amt. of water. Then, a kneading water contg. the ice sherbet type ice blocks with a specified ratio from which a set amt. of water has been separated is fed in a mixer 4 wherein it is kneaded with a cement and an aggregate respectively metered in a cement metering tank 2 and a concrete aggregate metering tank 3 to prepare a concrete. As it is unnecessary to slice large ice blocks, the manufacturing cost is low and as ice blocks as a pseudo-solid is used, it s possible to prepare a concrete with improved bleeding ratio and high quality.

63. 发明专利

JPH0353084B2 失效
公开(公告)号：JPH0353084B2
公开(公告)日：1991-08-14
申请号：JP6813783
申请日：1983-04-18
申请人： DENKI KAGAKU KOGYO KK
发明人： WATANABE KYOSHI , KUSANO YOSHIJI , SHIBAYAMA YUKIO
IPC分类号： B28C7/04 , B28B17/02 , B28C5/00 , B28C7/12 , C04B24/00 , C04B24/18 , C04B24/22 , C04B24/26 , C04B24/30 , C04B40/00

64. 发明专利

JPH03108509A PRODUCING EQUIPMENT FOR CONCRETE 失效
公开(公告)号：JPH03108509A
公开(公告)日：1991-05-08
申请号：JP15658089
申请日：1989-06-19
申请人： MITSUBISHI ELECTRIC CORP
发明人： YAMAGUCHI SAKUTARO
IPC分类号： B28C5/46 , B28C7/12 , F25C1/00 , F25C1/10
摘要： PURPOSE:To supply high-quality concrete at large amounts at low cost by vaporizing water contained in concrete material and evacuating the inside of an airtight vessel at the pressure necessary to hold concrete material at the temp. not higher than the required temp. by heat of vaporization. CONSTITUTION:Concrete material wherein ballast, sand, cement and water are blended at the prescribed ratio is introduced into a concrete mixer vessel 12 through a material supplying pipe 18 by opening a valve 17. Then the blades 16 are rotated and the valve 17 is closed. The pressure in the vessel 12 is lowered by driving a vacuum pump 13. Moisture contained in concrete 11 is vaporized and the temp. of concrete 11 is lowered by heat of vaporization. Furthermore when the temp. of concrete 11 is lowered at the prescribed temp., operation of the vacuum pump 13 is stopped. Concrete 11 is discharged through a discharge pipe 20 by opening a valve 19. Thereby concrete can be cooled without utilizing liquid nitrogen.

65. 发明专利

JPH0253206B2 失效
公开(公告)号：JPH0253206B2
公开(公告)日：1990-11-16
申请号：JP20503985
申请日：1985-09-17
申请人： SUZUKI TOSHIRO
发明人： SUZUKI TOSHIRO
IPC分类号： E04G21/02 , B28C7/04 , B28C7/12 , C04B40/00

66. 发明专利

JPH0240009B2 失效
公开(公告)号：JPH0240009B2
公开(公告)日：1990-09-10
申请号：JP5509986
申请日：1986-03-14
申请人： TAISEI CORP
发明人： TSUBAHARA TSUTOMU , NAGURA KATSUHIRO , NISHIDA YOSHINAGA
IPC分类号： C04B28/02 , B28C7/12 , C04B14/10

67. 发明专利

JPH0299304A MANUFACTURE OF READY MIXED CONCRETE 失效
公开(公告)号：JPH0299304A
公开(公告)日：1990-04-11
申请号：JP25198688
申请日：1988-10-07
申请人： EARTHNICS CORP
发明人： UCHIDA HIROYUKI , ISOHATA HITOSHI
IPC分类号： B28C7/04 , B28C7/12
摘要： PURPOSE:To enhance the quality by washing a plant mixer, a chute and a hopper of a mixer track with residual water of replenished water volume and adding the same to a mixer of the track and kneading. CONSTITUTION:The given volume of cement is fed for each one batch from a cement tank 2 through a feeding pipe 3, and a part W2 of reinforced water volume W1 after deducting the water volume w included in an aggregate from the gross water volume W required for manufacturing ready mixed concrete for said volume of cement is fed from a water pipe 4 agitated by an agitating blade 5 in a mixer 1, mixed and kneaded to adjust cement paste. In that case, the water is fed into the mixer 1 by the water volume W2 first, and agitated to wash the inside, while cement should be fed into the mixer after discontinuing agitation.

68. 实用新型

JPH01165210U 失效
公开(公告)号：JPH01165210U
公开(公告)日：1989-11-17
申请号：JP6112288
申请日：1988-05-11
IPC分类号： B28C7/12 , B28C9/02

69. 发明专利

JPH01235601A METHOD FOR MANUFACTURING CONCRETE AND APPARATUS THEREFOR 失效
公开(公告)号：JPH01235601A
公开(公告)日：1989-09-20
申请号：JP6201188
申请日：1988-03-17
申请人： HAZAMA GUMI , TEISAN KK , WATARI SHOKAI KK
发明人： ASO KIMIHIRO , MINATO RYUJIRO , ISHIGURO NOBUO , TAKAGI AKIRA
IPC分类号： B28C7/12 , B28C7/00
摘要： PURPOSE:To enhance the available efficiency of low temperature gas considerably as well as enable the cooling temperature of concrete to be set arbitrarily and easily by spouting directly gasified low temperature gas such as liquefied nitrogen into the kneading water. CONSTITUTION:The spouting of the low temperature gas is performed through a small nozzle orifice and kneading water 2 is blown up within a vessel 1 and then cryohydrated wherein the heat exchange is applied under convecting from the low temperature gas to the kneading water. The other kneading water 2 in the vicinity of a spouting pipe 4 is also blown up in the same manner, and rises under becoming spouting fluidity, with the result that the kneading water becomes gradually sherbet like iced water in its whole, while repeating such performance. At the time when the kneading water glows to iced water like sherbet, a discharge control valve 8 is opened so that it may be sent through a discharge pipe 7 to the kneading apparatus such as a mixer in a certain quantity. Within the mixer, cement, aggregate, etc., are accommodated preliminarily in a mixed state and the iced water is mixed with and kneaded into them, as a result, desired low temperature concrete is manufactured.

70. 发明专利

JPS6458703A METHOD OF PLACING CONSTRUCTION OF DRY TYPE CONCRETE 失效
公开(公告)号：JPS6458703A
公开(公告)日：1989-03-06
申请号：JP21453287
申请日：1987-08-28
申请人： TODA CONSTRUCTION
发明人： YABE SUMIOMI
IPC分类号： B28C7/12 , E01C7/14 , E04G21/02
摘要： PURPOSE: To prevent breaching or crack by supplying water necessary for reaction of cement by rolling and heating after ice pieces insoluble at cold are mixed with cement to cast. CONSTITUTION: After ice pieces insoluble at cold are mixed with cement, it is kneaded together with coarse and fine aggregate by a dry construction method to cast and level off. It is sufficiently rolled with a roller to lower a fusing point, and water necessary for reaction of cement is supplied by simultaneously heating. By the constitution, a firm cement concrete paving having no crack and a structure can be constructed.

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