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1. 发明专利

JP2003137623A LIGHTWEIGHT ARTIFICIAL AGGREGATE AND MANUFACTURING METHOD THEREFOR 审中-公开
公开(公告)号：JP2003137623A
公开(公告)日：2003-05-14
申请号：JP2001330801
申请日：2001-10-29
申请人： JOBAN KYODO KARYOKU KK , KAJIMA CORP , NIPPON MESARAITO KOGYO KK , DAI ICHI KOGYO SEIYAKU CO LTD
发明人： SAITO AKIO , OZAWA KEIICHI , TOMIOKA KAZUNORI , WAMI KOKI , INAGAKI KAZUHIKO , KASAI HIROSHI , FUJIKI HIDEKAZU , TANAKA KIMITOKU , HAYASHI TAKAYUKI , KAGIMASA NORIKO
IPC分类号： C04B14/02 , C04B18/02 , C04B18/10
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method for lightweight artificial aggregate excellent in shape-retaining properties during the period after a granulation stage until a sintering stage and to provide the lightweight artificial aggregate formed by this manufacturing method and high in crashing strength. SOLUTION: Pregelatinized starch having >=15 ml/g and

2. 发明专利

JP2000247698A PRODUCTION OF ARTIFICIAL LIGHTWEIGHT AGGREGATE 失效
公开(公告)号：JP2000247698A
公开(公告)日：2000-09-12
申请号：JP5152999
申请日：1999-02-26
申请人： NIPPON MESARAITO KOGYO KK
发明人： FUJIKI HIDEKAZU , TANAKA KIMITOKU
IPC分类号： C04B14/02 , C04B18/02 , C04B18/04 , C04B18/10
摘要： PROBLEM TO BE SOLVED: To obtain a material having small dry specific gravity by compounding incineration ash of sewage sludge and coal ash to prepare the source material, granulating the source material and then calcining. SOLUTION: Water is added to the source material prepared by preferably compounding 40 to 185 pts.wt. of coal ash to 100 pts.wt. of incineration ash of sewage sludge, and the obtd. mixture is granulated and calcined. The amt. of water added is controlled to obtain 15 to 35 wt.% of the water content in the source material during granulation. As for a granulating method, an extruding molding machine, pan-type pelletizer or the like is used. A rotary kiln, grate type furnace or fluidized bed furnace method, or the like is used to calcine the granulated material. The calcination temp. is preferably 1,000 to 1,150 deg.C. The compsn. of the incineration ash of sewage sludge consists of 20 to 80 wt.% of SiO2, 5 to 30 wt.% of Al2O3 and 2 to 20 wt.% of Fe2O3. The compsn. of the coal ash consists of 50 to 75 wt.% of SiO2, 15 to 30 wt.% of Al2O3 and 0.5 to 10 wt.% of Fe2O3. A binder (e.g. bentonite) is preferably added by 1 to 5 wt.% to the compounded source material.

3. 发明专利

JP2000053454A ARTIFICIAL AGGREGATE AND PRODUCTION OF ARTIFICIAL AGGREGATE 失效
公开(公告)号：JP2000053454A
公开(公告)日：2000-02-22
申请号：JP22054398
申请日：1998-08-04
申请人： NIPPON MESARAITO KOGYO KK
发明人： FUJIKI HIDEKAZU , TANAKA KIMITOKU
IPC分类号： B09B3/00 , C02F11/00 , C04B14/12 , C04B18/02 , C04B18/16
摘要： PROBLEM TO BE SOLVED: To obtain an artificial aggregate high in strength, low in water absorption and capable of forcibly pumping of green concrete by granulating a raw material containing expandable shale and construction sludge and firing the granule. SOLUTION: The suitable blending ratio of the construction sludge to the expandable shale is 2-100 pts.wt. construction sludge to 100 pts.wt. expandable shale. For the granulation of the mixture of the expandable shale with the construction sludge, an extrusion type molding machine (extrusion granulator) or a pan type pelletizer is preferably used. The firing temp. of the granulated material is preferably 1,100-1,200 deg.C. The firing method of the granulated material is preferably a method using a rotary kiln or a fluidizing roaster. The shale having

4. 发明专利

JP2001146444A METHOD FOR PRODUCING ARTIFICIAL LIGHTWEIGHT AGGREGATE 失效
公开(公告)号：JP2001146444A
公开(公告)日：2001-05-29
申请号：JP32636799
申请日：1999-11-17
申请人： NIPPON MESARAITO KOGYO KK
发明人： FUJIKI HIDEKAZU , TANAKA KIMITOKU
IPC分类号： B09B3/00 , C04B18/02 , C04B18/10 , C04B20/06 , C04B38/08
摘要： PROBLEM TO BE SOLVED: To provide a method for producing artificial lightweight aggregate capable of effectively utilizing industrial waste such as coal ash and stably producing the artificial lightweight aggregate having small absolute specific gravity by a method excellent in moldability. SOLUTION: This method for producing artificial lightweight aggregate comprises granulating a mixed raw material of sewage sludge burned ash with coal ash obtained by pulverizing at least either one of sewage sludge burned ash and coal ash and then compounding both raw materials or a mixed raw material obtained by further compounding the above mixed raw material with shale and then burning the resultant granulated material.

5. 发明专利

JPH11263648A PRODUCTION OF HIGH STRENGTH ARTIFICIAL AGGREGATE 失效
公开(公告)号：JPH11263648A
公开(公告)日：1999-09-28
申请号：JP6751298
申请日：1998-03-17
申请人： NIPPON MESARAITO KOGYO KK
发明人： FUJIKI HIDEKAZU , TANAKA KIMITOKU , TOMOSAWA FUMINORI , SHIMIZU AKIYUKI
IPC分类号： C04B14/12 , C04B18/02 , C04B18/10
摘要： PROBLEM TO BE SOLVED: To obtain an aggregate which gives a concrete having an excellent compressive strength by compounding coal ash in an expansive shale having a specified or smaller particle size to prepare a source material, then granulating, calcining and sifting. SOLUTION: Coal ash, preferably by 10 to 200 pts.wt. is compounded in preferably 100 pts.wt. of an expansive shale having

6. 发明专利

JPH11263651A PRODUCTION OF ARTIFICIAL LIGHTWEIGHT AGGREGATE 失效
公开(公告)号：JPH11263651A
公开(公告)日：1999-09-28
申请号：JP6751198
申请日：1998-03-17
申请人： NIPPON MESARAITO KOGYO KK
发明人： FUJIKI HIDEKAZU , TANAKA KIMITOKU
IPC分类号： C04B18/10
摘要： PROBLEM TO BE SOLVED: To obtain an aggregate having an excellent compressive strength utilizing an industrial waste by compounding an incineration ash of sewage sludge in expansive shale having a specified or smaller particle size to prepare a source material, then granulating, calcining and sifting. SOLUTION: An incineration ash of sewage sludge, preferably by 50 to 1,000 pts.wt. as a solid content is compounded in preferably 100 pts.wt. of an expansive shale having

7. 发明专利

JP2002167288A METHOD OF MANUFACTURING ARTIFICIAL LIGHTWEIGHT AGGREGATE 失效
公开(公告)号：JP2002167288A
公开(公告)日：2002-06-11
申请号：JP2000365211
申请日：2000-11-30
申请人： NIPPON MESARAITO KOGYO KK
发明人： FUJIKI HIDEKAZU , TANAKA KIMITOKU
IPC分类号： C04B38/00 , C04B33/13 , C04B33/135 , C04B35/636 , C04B38/06 , C04B38/08
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing an artificial lightweight aggregate, wherein a granule formed in the manufacturing process has high strength, yield based on a raw material is high, and provide the aggregate for a high- strength artificial lightweight coarse aggregate using an industrial waste as the raw material. SOLUTION: A raw material which contains SiO2-Al2O3-based material with softening point of 500-1200 deg.C, a fiber, preferably an organic opening fiber, with water content of

8. 发明专利

JPH11263649A LOW WATER ABSORPTIVE ARTIFICIAL LIGHTWEIGHT AGGREGATE AND ITS PRODUCTION 失效
公开(公告)号：JPH11263649A
公开(公告)日：1999-09-28
申请号：JP8942298
申请日：1998-03-17
申请人： NIPPON MESARAITO KOGYO KK
发明人： FUJIKI HIDEKAZU , TANAKA KIMITOKU
IPC分类号： C04B14/12 , C04B18/02
摘要： PROBLEM TO BE SOLVED: To provide a producing method of a low water absorptive artificial lightweight aggregate small in apparent specific gravity, low in water absorption and easy in the forcible feed of ready-mixed concrete at the time of placing concrete and the low water absorptive artificial lightweight aggregate. SOLUTION: The producing method of the low water absorptive artificial lightweight aggregate is by granulating a raw material mixture of a pulverized expansible shale, a silica.alumina-containing material having a 700-1,000 deg.C softening point and/or a perlite foamed body and an additive combusting at a temp. of 800-1,100 deg.C and firing the resultant granulated material. And the low water absorptive artificial aggregate is a fired material of the mixture of the pulverized expansible shale with the perlite foamed body.

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