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    GRANULAR POWDER QUANTITATIVE SUPPLY APPARATUS
    11.
    发明专利
    GRANULAR POWDER QUANTITATIVE SUPPLY APPARATUS 失效

    公开(公告)号：JPH0517023A

    公开(公告)日：1993-01-26

    申请号：JP19710491

    申请日：1991-07-11

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： UEDA MINORU ,  UCHIDA KUNIO ,  ASO NOBORU

    IPC: B65G47/14 ,  B65G27/02 ,  B65G47/16 ,  B65G47/34 ,  B65G65/44

    Abstract: PURPOSE:To provide a granular powder quantitative supply apparatus which can supply a small quantity of granular powder quantitatively without lowering the magnitude of vibration applied to a vibration type granular powder supply device to such a degree as to obstruct a flow of granular powder. CONSTITUTION:It is possible to freely control the space between a gate 3 for limiting the amount of passing of a granular powder flow F of a spiral surface 2 of the uppermost portion of a vibration type granular powder supply device and the outer peripheral wall 1 of the spiral surface, the distance of a supply hole 6 for granular powder from the gate 3, the position on the width of the spiral surface of the hold, and the diameter thereof.

    SUPERFINE PARTICLE CLASSIFIER
    14.
    发明专利
    SUPERFINE PARTICLE CLASSIFIER 失效

    公开(公告)号：JPH07256146A

    公开(公告)日：1995-10-09

    申请号：JP7408494

    申请日：1994-03-18

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： IGASAKI FUMIKAZU ,  GOTO AKIHIRO ,  HORIUCHI YUKIHIKO ,  UCHIDA KUNIO

    IPC: B03C7/02

    Abstract: PURPOSE:To classify a large number of superfine particles into respective diameter ranges by utilizing the mobility of the particle by arranging an acicular electrode on the center axis of an outer tube, furnishing a tubular electrode to surround the tip of the acicular electrode and impressing a voltage between the electrodes. CONSTITUTION:A clean gas inlet hole 3 is provided at the center of one end 1A of an outer tube 1, a hole 2 to introduce a gas contg. superfine particles is furnished around the hole 3, and plural superfine particle discharge ports 7 to 9 are concentrically arranged on the outlet end. An acicular electrode 10 having a length of 70% of that of the outer tube 1 is furnished on the center axis of the outer tube 1, and further a tubular electrode 12 is provided on the outer periphery or inner periphery of the outer tube 1 to surround the tip of the acicular electrode 10. A power source 13 is furnished to impress a voltage between both electrodes 10 and 12. Consequently, the superfine particle entrained by a gas flows in the device by the mobility corresponding to the impressed voltage, and the particles are classified into respective diameter ranges and discharged from the discharge ports 7 to 9.

    CONTINUOUS PRODUCTION OF CARBON NANOTUBE AND APPARATUS THEREFOR
    15.
    发明专利
    CONTINUOUS PRODUCTION OF CARBON NANOTUBE AND APPARATUS THEREFOR 失效

    公开(公告)号：JPH07216660A

    公开(公告)日：1995-08-15

    申请号：JP2603994

    申请日：1994-01-28

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： OSHIMA SATORU ,  YUMURA MORIO ,  UCHIDA KUNIO ,  KURIKI YASUNORI ,  IGASAKI FUMIKAZU

    IPC: D01F9/12 ,  C01B31/02

    Abstract: PURPOSE:To provide a process for the continuous mass-production of carbon nanotube while stabilizing electrical discharge and keeping the stability and reliability of the operation. CONSTITUTION:This apparatus for the continuous production of carbon nanotube is provided with a closed vessel 1, a cathode 2 placed in the closed vessel keeping the center axis in horizontal direction, an anode 6 horizontally placed in the closed vessel in a state opposite to the cathode face of the cathode and separating the center axis from the center of the cathode by a definite distance, driving mechanisms 4, 5 to continuously or intermittently rotate or reciprocate the cathode and the anode relative to each other, an anode-moving mechanism 7 for supporting and horizontally transferring the anode, an inert gas passing means 11 to pass an inert gas through the closed vessel, a power-supplying means 9 to apply a prescribed electric power between the anode and the cathode and a precipitate-removing means 8 to remove the substance precipitated on the cathode surface of the cathode.

    PRODUCTION MULLITE MATERIAL
    17.
    发明专利
    PRODUCTION MULLITE MATERIAL 失效

    公开(公告)号：JPH02275752A

    公开(公告)日：1990-11-09

    申请号：JP9162289

    申请日：1989-04-11

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： OTAKE TAKESHI ,  UCHIDA KUNIO ,  KAWAMURA MITSUTAKA ,  OKUBO TEIJI ,  IGASAKI FUMIKAZU

    IPC: C04B35/00 ,  C04B35/18

    Abstract: PURPOSE:To obtain feedstock for mullite ceramics in low costs by forming a mixture of deironated and decarbonized coal ash and alumina and firing the products. CONSTITUTION:Alumina is added to deironated and decarbonized coal ash, the mixture is formed and fired to give the subject material. The ash is reduced less than 2wt.% in iron and less than 0.5wt.% in carbon. The deironation treatment is carried out by using a magnetic separator, when needed, followed by treatment with hydrochloric acid or sulfuric acid. The decarbonization is effected in order to reduce carbon residue (including unchanged coal) by calcinating at 800 to 900 deg.C after deironation. Unsatisfactory pretreatment forms foams during the firing of the formed products. The residual iron causes colored (red brown) products with market value reduced.

    MOLDED PRODUCT FOR BURNING IN PRODUCTION OF ARTIFICIAL LIGHT-WEIGHT AGGREGATE
    18.
    发明专利
    MOLDED PRODUCT FOR BURNING IN PRODUCTION OF ARTIFICIAL LIGHT-WEIGHT AGGREGATE 失效

    公开(公告)号：JPH01122944A

    公开(公告)日：1989-05-16

    申请号：JP28144987

    申请日：1987-11-06

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： OTAKE TAKESHI ,  KAWAMURA MITSUTAKA ,  UCHIDA KUNIO

    IPC: C04B18/10 ,  C04B14/12 ,  C04B18/02 ,  C04B18/08

    Abstract: PURPOSE:To obtain the above molded product for burning hardly breaking or pulverizing in burning in the production of artificial light-weight aggregate and having improved mechanical strength, by applying an organic binder to the surface of the molded product of an inorganic material containing an inorganic binder. CONSTITUTION:An inorganic binder consisting of bentonite, clay, etc., is added to an inorganic material consisting of coal ash, garbage burnt ash, etc., at a ratio of 2-10wt.% and the blend is humidified to mold to a desired form. Furthermore, average particle size of the inorganic material is normally

    PRODUCTION OF CARBON NANOTUBE
    20.
    发明专利
    PRODUCTION OF CARBON NANOTUBE 失效

    公开(公告)号：JP2001080912A

    公开(公告)日：2001-03-27

    申请号：JP25745799

    申请日：1999-09-10

    Applicant: AGENCY IND SCIENCE TECHN ,  OSHIMA SATORU ,  AGO HIROKI ,  YUMURA MORIO ,  UCHIDA KUNIO ,  IGASAKI FUMIKAZU ,  KURIKI YASUNORI

    Inventor： OSHIMA SATORU ,  AGO HIROKI ,  YUMURA MORIO ,  UCHIDA KUNIO ,  IGASAKI FUMIKAZU ,  KURIKI YASUNORI

    IPC: C01B31/02 ,  B01J27/043

    Abstract: PROBLEM TO BE SOLVED: To industrially advantageously produce carbon nanotubes. SOLUTION: When a carbon-containing material is thermally decomposed in the presence of a catalyst substrate to produce carbon nanotubes, a series of steps, that is, (i) a step for thermally decomposing the carbon-containing material in the presence of the catalyst substrate to form the carbon nanotubes on the substrate, (ii) a step for separating the formed carbon nanotubes from the substrate, (iii) a step for applying and drying a catalyst fluid containing hyperfine catalyst particles on the substrate after the separation of the carbon nanotubes to regenerate the catalyst substrate and (iv) a step for thermally decomposing the carbon-containing material in the presence of the regenerated catalyst substrate to form the carbon nanotubes on the substrate are repeatedly carried out.

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