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31. 发明专利

JPS595003B2 JPS595003B2 - 失效
公开(公告)号：JPS595003B2
公开(公告)日：1984-02-02
申请号：JP4682780
申请日：1980-04-11
申请人： Hitachi Ltd
发明人： FUJIWARA KYOSHI , FUJIMOTO MASARU , NOMURA SEIJI , KANEKYO HIROSHI , YOSHINAGA SHOJI
IPC分类号： B01D11/04 , B01J19/00
CPC分类号： B01D11/048

32. 发明专利

JP2003103296A BIOLOGICAL TREATMENT APPARATUS 审中-公开
公开(公告)号：JP2003103296A
公开(公告)日：2003-04-08
申请号：JP2001298980
申请日：2001-09-28
申请人： HITACHI LTD , HITACHI IND CO LTD
发明人： UEDA HIRONOBU , HARADA SUSUMU , NOMURA SEIJI , AKAANA TASUKE
IPC分类号： C02F3/04 , C02F3/12 , C02F3/34
摘要： PROBLEM TO BE SOLVED: To provide a biological treatment apparatus suitable for preventing bulking in biological treatment, especially scum generation by denitrification in a solid-liquid separation tank, by a relatively simple control. SOLUTION: A biological treatment means 3 comprising a plurality of means for treating waste water containing various organic substances by microorganisms is composed of a turbidity meter 7 located at the latest stage of the means and measuring the turbidity of a solid-liquid separation means 4, concentration meters 5, 6 located before the solid-liquid separation means 4 and respectively measuring the concentration of nitrous acid (nitrite nitrogen) and the concentration of nitric acid (nitrate nitrogen) in an aeration tank, an aeration means 9 capable of controlling aeration volume in the aeration tank, a nitrification inhibitor adding means 10 for adding a nitrification inhibitor to the aeration tank, and a control means 8 for controlling the aeration means and the adding means base on the measured turbidity, nitrous acid concentration, and nitric acid concentration.

33. 发明专利

JP2002018458A METHOD FOR TREATING WASTEWATER CONTAINING ANIMAL AND VEGETABLE OIL 失效
公开(公告)号：JP2002018458A
公开(公告)日：2002-01-22
申请号：JP2000202266
申请日：2000-07-04
申请人： HITACHI LTD , YOSHIHARA OIL MILL LTD
发明人： UEDA HIRONOBU , HARADA SUSUMU , NOMURA SEIJI , OKAMOTO UICHI , SASAKURA MASATO
IPC分类号： C02F3/04 , C02F3/12
摘要： PROBLEM TO BE SOLVED: To provide a method for treating wastewater containing animal and vegetable oils which biologically treats the wastewater directly, is resistant to load variation, and can control the generation of odors and excess sludge. SOLUTION: The method is composed of a pH adjustment process 2 in which the pH of the wastewater is made approximately neutral, a biological treatment process 3 composed of a plurality of stages in which the pH-adjusted wastewater is mixed with oil decomposing bacteria and treated anaerobically, a watering filter bed process 10 comprising a filter bed process 100 in which a carrier is fixed at least to one biological treatment process, an aeration process 101 in which biological treatment is done under aeration, and a circulation-watering process 102 in which part of treatment water in the aeration process is watered to the filter bed process, a precipitation process 4 in which the wastewater treated in the biological treatment process is separated into solids and liquid, and a return process 7 in which precipitate is returned to the biological treatment process.

34. 发明专利

JPH07185201A CENTRIFUGAL THIN FILM EVAPORATOR 失效
公开(公告)号：JPH07185201A
公开(公告)日：1995-07-25
申请号：JP33106093
申请日：1993-12-27
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： IKEGAMI HIROSHI , NOMURA SEIJI , AKAANA TASUKE
IPC分类号： B01D1/22
摘要： PURPOSE:To operate at the number of revolutions in the best state of renewing the surface of a liquid film by sensing the formed state of the liquid film in the case of replacing the treatment liquid or changing the number of revolutions in compliance with the replacement of treatment liquid. CONSTITUTION:In evaporator comprising a rotor 1 on which a movable blade 16 for forming a liquid film in a cylindrical heat transfer body 2 is installed and forming the liquid film on a heat transfer surface on the inner face of the heat transfer body 2 by the movable blade 16 by means of the centrifugal force generated by the revolution of a rotor 21, a thermocouple 28 for sensing the formed state of the liquid film is installed on a movable blade 2 for forming the liquid film.

35. 发明专利

JPH06182101A VERTICAL CENTRIFUGAL THIN FILM EVAPORATOR 失效
公开(公告)号：JPH06182101A
公开(公告)日：1994-07-05
申请号：JP33836792
申请日：1992-12-18
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： AKAANA TASUKE , NOMURA SEIJI , IKEGAMI HIROSHI
IPC分类号： B01D1/22
摘要： PURPOSE:To provide a vertical centrifugal thin film evaporator which has a structure for securing clearance between the internal surface of a shell and a blade and has a structure where vibration of a shaft is not caused even when number of revolutions is increased in the vertical centrifugal thin film evaporator with a built-in condenser. CONSTITUTION:A bearing sliding material 14 is fixed to the inside of the rotary hollow shaft 3 of a vertical centrifugal thin film evaporator with a built-in condenser 5 and provided in the lower part of the rotary hollow shaft 3. The internal surface of the annular sliding material 14 is slid on the external surface of the cylindrical support 13 of a fixed side. The bearing supporting the hollow shaft 3 is constituted of the cylindrical support 13 of the fixed side and the annular sliding material 14.

36. 发明专利

JPH05168890A DEVICE FOR ADJUSTING CLEARANCE OF ROTARY BLADE 失效
公开(公告)号：JPH05168890A
公开(公告)日：1993-07-02
申请号：JP32283891
申请日：1991-12-06
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： KANZAKI ATSUMITSU , FUJIMOTO MASARU , FURUKAWA KEISHIN , TAKADA TADASHI , NOMURA SEIJI , ISHIYAMA YOSHIO
IPC分类号： B01D1/22 , B01F15/00
摘要： PURPOSE:To individually adjust several blades and make the clearance between the inner wall of a vessel and a rotary blade in the noncontact state and nearly 0mm in a device for adjusting the clearance between the inner wall of a vessel and a rotary blade by using an eccentric bolt as a pin for connecting a blade support with a blade fitting boss part. CONSTITUTION:This device is constituted of an vessel wall 1, a rotating shaft 2, a blade 3, a blade fitting boss 4, an eccentric pin bolt 5, a blade supports 6, 7 and a washer 8. By fitting an eccentric bolt 5 for making the regions of the supports 6, 7 and the blade fitting boss 4 be not co-axial, a clearance between the vessel wall 1 and the blade 3 can finely be adjusted and because of the noncontactness, wear of the blade 3 and the vessel wall 1 is decreased and because of minute clearance secured, material stuck on the vessel wall 1 is removed to prevent the deterioration of the product.

37. 发明专利

JPH0465678B2 失效
公开(公告)号：JPH0465678B2
公开(公告)日：1992-10-20
申请号：JP3302586
申请日：1986-02-19
申请人： HITACHI LTD
发明人： KATO KENJI , NOMURA SEIJI , FUJIMOTO MASAKATSU
IPC分类号： C12N5/02 , C12M3/00 , C12N5/07 , C12N5/071

38. 发明专利

JPH04262193A LOWER BEARING LUBRICATING DEVICE 失效
公开(公告)号：JPH04262193A
公开(公告)日：1992-09-17
申请号：JP2179391
申请日：1991-02-15
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： FUJIMOTO MASARU , NOMURA SEIJI
IPC分类号： F16N29/02
摘要： PURPOSE:To enable lubrication, by a single lubricating device of lower bearings for a plurality of vacuum evaporators differing from each other in respect of operation pressure. CONSTITUTION:The lubricating device is constituted by a tank 1, a pump 3, flow meters 7, side glasses 8, lower bearings 9, a pressure equalizing nozzle 10, pressure-adjusting valves 11, and pipes 16, 17. The apparatus is arranged such that the pressure differences are balanced utilizing the fluid pressures in the lubrication-fluid return pipes. In the past, one lubricator was needed for one vacuum evaporator whereas, a plurality of vacuum evaporators can be operated by using one lubricating device.

39. 发明专利

JPH04260433A STIRRING DEVICE 失效
公开(公告)号：JPH04260433A
公开(公告)日：1992-09-16
申请号：JP2313191
申请日：1991-02-18
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： FURUKAWA KEISHIN , SATONO TADASHI , NOMURA SEIJI , AKAANA TASUKE
IPC分类号： B01F15/00
摘要： PURPOSE:To measure temperature accurately and at an arbitrary position in a canister of a stirring device. CONSTITUTION:In a stirring device comprising a stirring shaft 4 penetrating a container 1, and stirring blades 5 mounted on said stirring shaft, a temperature sensor is attached to either the stirring shaft 4 or the stirring blade 5 to send by means of a wiring 7 the results of the measurement to a temperature recorder 8 which is provided outside a canister of the stirring shaft 4. Accordingly, by using this stirring device, temperatures within the container are measured at arbitrary positions and in optional frequencies, and the results of measurement can be sent outsides so that the operating conditions of high precision may be selected. Furthermore, contact of the stirring blade to the container can be detected in advance for safeguard of the device.

40. 发明专利

JPH04193302A REMOVING OF SOLVENT 失效
公开(公告)号：JPH04193302A
公开(公告)日：1992-07-13
申请号：JP32271190
申请日：1990-11-28
申请人： HITACHI LTD , HITACHI KASADO ENG KK
发明人： MAZAKI YASUNORI , NOMURA SEIJI
IPC分类号： B01D1/22 , B01D3/00
摘要： PURPOSE:To surely remove the solvent or the low boiling point component in the product solution and to attain the improvement of the product recovery rate by heat-evaporating the solvent with a heat evaporator, subsequently discharging into a tank, etc., at a lower pressure than a pressure in the heating evaporator and removing the solvent. CONSTITUTION:The hexane solution of a high molecular compound is steam- heated in the centrifugal film evaporator 1 under an atmospheric pressure and a residual rate of hexane in the high molecular compound is reduced and it is discharged into a evacuated tank 11 with an intermediate pump. As a result, the solvent or the low boiling point component in the product solution of the high boiling point compound or the high molecular compound, etc., is surely removed and the major part of the solvent or low boiling point component can be condensed in a high pressure state, so the recovery rate is high and the total cost can become advantageous.

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