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1. 发明专利

JP2001174156A CENTRIFUGAL THIN FILM DRYER 失效
公开(公告)号：JP2001174156A
公开(公告)日：2001-06-29
申请号：JP36169499
申请日：1999-12-20
申请人： TOSHIBA CORP
发明人： OGAWA SATOSHI , MORIKAWA AKIRA , IDE KATSUNORI , SATO MAKOTO , KAWACHI KYOZO
IPC分类号： C02F11/12 , F26B17/22
摘要： PROBLEM TO BE SOLVED: To provide a centrifugal thin film dryer capable of stably operating by preventing the overload trip of a drive motor for driving a main shaft from occurring. SOLUTION: This centrifugal thin film dryer comprises a heat transfer body 1, a main shaft 2 rotatably provided in the body 1, and a blade 4 attached to the shaft 2. In this case, the shaft 2 is driven by a drive motor 7, and the current value of the motor is sent to a controller 19. The controller 19 controls the rotational speed of a concentrated sludge supply pump 18 based on the current value from the motor 7.

2. 发明专利

JP2000246296A SLUDGE CONCENTRATING SYSTEM 失效
公开(公告)号：JP2000246296A
公开(公告)日：2000-09-12
申请号：JP5458299
申请日：1999-03-02
申请人： TOSHIBA CORP
发明人： YASUMURA KEIJIRO , KAWACHI KYOZO
IPC分类号： B01D29/39 , B01D37/02 , B01D39/08 , B01D39/10 , B01D39/20 , C02F11/12
摘要： PROBLEM TO BE SOLVED: To enable the dehydration treatment of sludge without adding org. and inorg. flocculants to sludge and to prevent the generation of an environmental problem even if conc. sludge is adapted to landfill or utilized as compost. SOLUTION: Sawdust 7 is supplied to the sludge supply tank 16 of a sludge supply system 3 by a sawdust supply system 4 while the rotary disc type dynamics filter device 15 of a dehydration system 11 is sealed by a seal water supply system 6 and mixed with sludge 2 to prepare mixed sludge 8 which is, in turn, supplied to the rotary disc type dynamics filter device 15 to be separated into filtered water 9 and conc. sludge 10 and the filtered water 9 obtained by this separation treatment is stored in the filtered water receiving tank 17 of a filtered water treatment system 12 and the conc. sludge 10 obtained by the separation treatment is stored in a conc. sludge receiving tank 18.

3. 发明专利

JP2000176495A DEVICE AND METHOD FOR DRYING SLUDGE 失效
公开(公告)号：JP2000176495A
公开(公告)日：2000-06-27
申请号：JP35477398
申请日：1998-12-14
申请人： TOSHIBA CORP
发明人： IDE KATSUNORI , YAMAMOTO MASARU , KAWACHI KYOZO
IPC分类号： C02F11/12 , C02F11/14 , F26B3/24 , F26B11/08
摘要： PROBLEM TO BE SOLVED: To easily and surely obtain granular dehydrated sludge which is lowly adhesive and easy to handle. SOLUTION: Sludge undergoes mechanical dehydration by a centrifugal concentrator 5 in advance and undergoes dehydration and drying by a centrifugal film dryer 6. The sludge is sent to a rotary dryer 7 of heat transfer heat reception type to further subjected to dehydration and drying. The obtained dried sludge undergoes incineration/melting or gasification/melting in an incinerating/ melting furnace 15. The water content discharged from the centrifugal film dryer 6 is in the range of 65-55 wt.%. Odor containing evaporated vapor generated from the sludge in the centrifugal thin film dryer 6 and the rotary dyer 7 is get rid of water content in a cooling washer 8, and its gas is discharged through a deodorizing device 9 and a filter 10.

4. 发明专利

JPH09970A THREADLIKE LITTER REMOVING DEVICE 失效
公开(公告)号：JPH09970A
公开(公告)日：1997-01-07
申请号：JP15644195
申请日：1995-06-22
申请人： TOSHIBA CORP
发明人： KAWACHI KYOZO , IBE HIDENORI , WATABE OSAMU , SEKIYA EIJI , ABE NORIMITSU , TAKEMURA MINORU
IPC分类号： B01D35/02 , B03B5/00
摘要： PURPOSE: To provide a device for selectively removing only threadlike litter in sewage. CONSTITUTION: This threadlike litter removing device 10 is provided with a vessel 13 of a roughly cylindrical shape enclosed at both the ends. An inflow pipe 14 is connected to one end side of the vessel 13 along the circumferential direction of the vessel 13, and an outflow pipe 15 is connected to the other end side of the vessel 13 along the circumferential direction of the vessel 13. In the vessel 13, plural bar bodies 16 are arranged in parallel to the axial direction.

5. 发明专利

JPH06262199A PURIFYING METHOD AND PURIFYING DEVICE FOR TIDAL CANAL 失效
公开(公告)号：JPH06262199A
公开(公告)日：1994-09-20
申请号：JP4941393
申请日：1993-03-10
申请人： TOSHIBA CORP
发明人： KAWACHI KYOZO , TAKITA HIDEYA , HIRAYAMA YASUSHIGE
IPC分类号： C02F3/22 , C02F1/00 , C02F7/00 , C02F11/00
摘要： PURPOSE:To easily and simply discharge the org. suspended solids settled and deposited in a tidal canal to the outside without relying on a dredging operation. CONSTITUTION:An underwater ejector 5 is arranged within the tidal canal where the sea water moves in and out according to the ebb and flow of the tide. The time of the ebb tide is judged in accordance with the signal from an tidal current meter 4 and the underwater ejector 5 is intermittently started to inject the water flow contg. air bubbles toward the bottom of the canal at the time of the ebb tide by a controller 6. The suspended solids deposited in the bottom of the canal are floated and are discharged outside of the canal by the tidal current.

6. 发明专利

JPH06198298A TREATMENT OF WASTE WATER 失效
公开(公告)号：JPH06198298A
公开(公告)日：1994-07-19
申请号：JP2693
申请日：1993-01-04
申请人： TOSHIBA CORP
发明人： TSUTSUMI MASAHIKO , KAWACHI KYOZO
IPC分类号： C02F3/34 , C02F3/10
摘要： PURPOSE:To biologically denitrify and nitrify a nitrogen component by alternately performing a denitrification process supplying waste water to a biological reaction part and stopping the supply of air to drive a stirrer and a nitrification process stopping the supply of waste water to stop the stirrer. CONSTITUTION:In a waste treatment tank 1, waste water 2 is supplied to a biological reaction port 7 and the supply of the air from an air source 17 is stopped or the supply of air is throttled and a pump 13 is driven as a stirrer to perform denitrification in the biological reaction part 7. Further, the supply of the waste water 2 is stopped and air is supplied to an air diffusing pipe 14 from an air source 17 or the supply of air is increased and the pump 13 as the stirrer is stopped to perform the nitrification of the waste water in the biological reaction part 7. By alternately performing the denitrification process denitrifying the waste water 2 and the nitrification process nitrifying the waste water 2, the nitrogen component in waste water can be biologically denitrified and nitrified.

7. 发明专利

JPH05228486A WASTE WATER TREATMENT DEVICE 失效
公开(公告)号：JPH05228486A
公开(公告)日：1993-09-07
申请号：JP3029592
申请日：1992-02-18
申请人： TOSHIBA CORP
发明人： KAWACHI KYOZO , TSUTSUMI MASAHIKO , TAMURA HIROSHI
IPC分类号： C02F3/12
摘要： PURPOSE:To make biological treatment capability stable and minimize the generation of surplus sludge by providing a dissolved oxygen adjustment mechanism which adjusts the volume of dissolved oxygen in a biological reaction tank, and making the ratio of presence amount of bacteria and planktons among the aerobic microbes constant. CONSTITUTION:An aerophilic microbe 16 is allowed to decompose an organic matter in waste water by feeding air into a biological reaction tank 6 using an air blower 10. Then the dissolved oxygen in the biological reaction tank 6 is periodically adjusted at a cycle of 24 hours/n ((n) is an integer) using an adjustment mechanism 11. Consequently, the bacteria in the microbe 16 and the planktons which catche and eat the bacteria, are maintained at a constantly balanced ratio. Thus, it is possible to restrict the generation volume of surplus sludge and thereby realize a stable biological treatment capability.

8. 发明专利

JPH05212397A APPARATUS FOR TREATING WASTE WATER AND METHOD FOR OPERATING THE SAME 失效
公开(公告)号：JPH05212397A
公开(公告)日：1993-08-24
申请号：JP1639592
申请日：1992-01-31
申请人： TOSHIBA CORP
发明人： KAWACHI KYOZO , TSUTSUMI MASAHIKO
IPC分类号： C02F3/06 , C02F3/10 , C02F3/34
摘要： PURPOSE:To stabilize the function of removing soluble nitrogen by composing a water washing mechanism of a circulating mechanism in which reserved treated water overflowing from a reaction vessel is circulated to the bottom of the reaction vessel and recovering the surface of a bismembrane soon after a filter bed being washed with water. CONSTITUTION:When a filter bed is washed with water, a pump 15 with a flow rate Q2 is stopped, and a pump with a flow rate Q1 is operated to form a circulating flow composed of a water receiving vessel 19, a pump 25, a pipe b, and the water receiving vessel 19. For example, the ratio Q2/Q1 is set to be 1.5-3.0, and suspended solid (SS), which swells a filter medium and is deposited in a space 50, is released into the circulating flow. The pump 25 is then stopped, a valve 30 is opened to empty the water receiving vessel 19, and a valve 29 is opened to empty a reaction vessel 10, finishing the circulation with the actuation of a level sensor 32. After the sludge being discharged, a pump 15 is started to restore a normal operation. Then, the remaining suspended solid (SS) is mixed into a filter bed 12, and the surface is generally recovered within one hour.

9. 发明专利

JPH0576886A WASTE WATER TREATMENT APPARATUS 失效
公开(公告)号：JPH0576886A
公开(公告)日：1993-03-30
申请号：JP24372691
申请日：1991-09-24
申请人： TOSHIBA CORP
发明人： TSUTSUMI MASAHIKO , KAWACHI KYOZO
IPC分类号： C02F1/40 , C02F3/06 , C02F3/08 , C02F3/10 , C02F9/00
摘要： PURPOSE:To enhance the quality of treated water by preventing the mass generation of scum in a sedimentation part. CONSTITUTION:An aerobic fluidized bed 20 consisting of a bioreaction part 27 biologically treating waste water and a sedimentation part 30 separating waste water into excessive sludge and supernatant water is provided and the scum removing air diffusion pipe 44 connected to an air pipe 47 is provided in the vicinity of the outflow end 42 of the sedimentation part. A dissolved oxygen meter 48 is arranged on the downstream side of the outflow end 42 and the opening and closing valve 45 of an air pipe 47 is opened and closed corresponding to the concn. of dissolved oxygen by a control unit 63.

10. 发明专利

JPH0557296A TREATMENT OF WASTE WATER 失效
公开(公告)号：JPH0557296A
公开(公告)日：1993-03-09
申请号：JP21549091
申请日：1991-08-27
申请人： TOSHIBA CORP
发明人： KAWACHI KYOZO , TSUTSUMI MASAHIKO
IPC分类号： C02F3/02 , C02F3/08 , C02F3/12
摘要： PURPOSE:To treat waste water without need for periodically supplying a carrier for a biological membrane implanting bed. CONSTITUTION:Bacteria are implanted with the fine particle in waste water as the nucleus to form a granulated material in a reaction part 20. The waste water is biologically treated by the granulated material, the treated waste water is sent to a settling part 23, hence the granulated material is settled, and the supernatant water is discharged as the treated water.

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