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公开(公告)号：JP2000070615A
公开(公告)日：2000-03-07
申请号：JP24033198
申请日：1998-08-26
Applicant: TORAY INDUSTRIES
Inventor： DATE TAMOTSU , KUZUE EIJI
Abstract: PROBLEM TO BE SOLVED: To miniaturize rinsing equipment for filter medium by a method wherein a plurality of rinsing means capable of being selectively operated are arranged in a width direction of travelling filter medium, and a less number of fluid supply sources than the number of rinsing means are connected to the rinsing means. SOLUTION: A plurality of intermittent spray pipes 22 are arranged in a width direction of filter medium 5, and a solenoid valve 60 is disposed to a pipe line communicating with each intermittent spray pipe 22. Those pipe lines are united into one pipe line, and successively connected to a valve 52, a straigner 41, and a pump 31 in this order. Each intermittent spray pipe 22 is equipped with a plurality of pieces of spray nozzles 11 (rinsing nozzles). Since the solenoid valve 60 is installed to each intermittent spray pipe 22, each valve 60 can be selectively driven. Then, the number of pumps 31 are made less than a plurality of intermittent spray pipes 22, each intermittent spray pipe 22 is individually driven, and thereby the pump can be miniaturized as compared with the case wherein they are simultaneously operated.
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公开(公告)号：JPH0118766B2
公开(公告)日：1989-04-07
申请号：JP12359683
申请日：1983-07-07
Applicant: TORAY INDUSTRIES
Inventor： OOTANI MITSUNOBU , DATE TAMOTSU , NAGAYAMA TAKASHI
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公开(公告)号：JPS60223699A
公开(公告)日：1985-11-08
申请号：JP8010584
申请日：1984-04-23
Applicant: TORAY INDUSTRIES
Inventor： DATE TAMOTSU , NAGAYAMA TAKASHI , OOTANI MITSUNOBU
IPC: B01D33/04 , B01D35/143 , B30B9/20 , B30B9/24
Abstract: PURPOSE:To obtain high solid-liquid separating efficiency with a simple device by providing washing nozzles and combers on the upstream side of an endless filter cloth having a bristle filter layer on the surface to said cloth thereby improving the washing effect of the filter cloth. CONSTITUTION:The endless filter cloth 1 having the bristle filter layer on the surface is driven in an arrow direction by a driving roll 2. Solid and liquid are supplied from a solid and liquid supply tank 6. The supplied solid and liquid are subjected to pressure reduction and suction in a filtrate receiving tank 8 by which the liquid component is removed therefrom. The solid and liquid are further compressed by a transfer drum 11 and a compressing roll 12 to squeeze away the liquid component. The formed cake is scraped by a scraper 13. Water is injected to the filter cloth 1 from the 1st washing nozzle 14 to wash the filter cloth. The bristling directions on the surface of the cloth 1 are arranged by the 1st comber 19. The rear of the cloth 1 is further washed by the 2nd washing nozzle 15 and thereafter the bristling directions are arranged by the 2nd comber 20. The solid components taken deeply into the filter layer are thus easily and surely removed.
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公开(公告)号：JP2001025762A
公开(公告)日：2001-01-30
申请号：JP19759799
申请日：1999-07-12
Applicant: TORAY INDUSTRIES
Inventor： FUJITANI KENICHI , SENDA TERUO , DATE TAMOTSU
Abstract: PROBLEM TO BE SOLVED: To prevent breaking of a flocculated particle size of a suspended material and enhance a recovery rate in a dewatering machine by introducing scum formed in a floatation apparatus for forming scum by floating the suspended material by dissolved air to the filter cloth running type dewatering machine under natural flow. SOLUTION: Pressurized water is supplied to a floating separation processing tank 3 by a compressing pump 2 of a floatation apparatus 5 to form fine bubbles of dissolved air and the bubbles having SS adhered to circumference of them is floated up to the water surface to form scum. Floated scum is scraped up by a scraper 14. A flocculation reaction tank 4 for flocculating the suspended material by adding a flocculating agent is provided on the upstream side of the floatation apparatus 5. An outlet hopper 11 of a scum supplying means 6 supplies scum separated from treated water in the floatation apparatus to the downstream side while keeping a constant thickness of the scum and an inclined plate 12 slide down the scum supplied from the outlet hopper 11. A dewatered cake tank 10 for storing dewatered cake is provided on the downstream side of a filter cloth running type dewaterer 9.
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公开(公告)号：JPH11216492A
公开(公告)日：1999-08-10
申请号：JP1872098
申请日：1998-01-30
Applicant: TORAY INDUSTRIES
Inventor： SENDA TERUO , DATE TAMOTSU
IPC: C02F3/30
Abstract: PROBLEM TO BE SOLVED: To provide a method and device for treating waste water by which the quality of the effluent after waste water treatment is improved, and the nitration efficiency is increased. SOLUTION: This device consists of the anaerobic treating devices 2 and 10 for anaerobically treating raw water, an aerobic treating device 3 for aerobically treating the treated water obtained in the anaerobic treating devices 2 and 10, a sluge separator 4 for removing sludge from the treated water and a solid-liq. separator 6 for separating the treated water obtained in the separator 4 into solid and liq. to obtain a liq. concentrate and is provided with a treated water return line 7 to return a part of the treated water obtained in the aerobic treating device 3 to the anaerobic treating devices 2 and 10 and a liq. concentrate return line 8 to return the liq. concentrate obtained in the separator 6 to the aerobic treating device 3.
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Patent Agency Ranking
公开(公告)号：JPH08155220A
公开(公告)日：1996-06-18
申请号：JP30364594
申请日：1994-12-07
Applicant: TORAY INDUSTRIES
Inventor： DATE TAMOTSU , SENDA TERUO , NAKAJI KENJI
Abstract: PURPOSE: To provide a filter process for improving the stopping rate of solid suspended matters of small particle diameters even in the filter operation using a filter medium movable type filter. CONSTITUTION: In a filter process using a filter with a raw water supply section and a cleaning means disposed in a circulation moving line in which a filter medium is moved continuously, first the cleaning means is set in the stop state by a new filter medium set newly in the circulation moving line, and the filter operation is continued until the treated water amount per unit time shows the given lower limit value. Then the cleaning means is operated, and the filter operation is continued until the treated water amount is regenerated to the given upper limit value lower than the initial treated water amount based on the new filter medium, and the cleaning means is again set in the stop state by the regenerated filter medium, and the filter operation is continued until the treated water amount is lowered to the lower limit value. After that, the filter operation in the state of operating the cleaning means and the filter operation in the state of stopping the operation of the cleaning means are repeated alternately.
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公开(公告)号：JPH08155219A
公开(公告)日：1996-06-18
申请号：JP30360194
申请日：1994-12-07
Applicant: TORAY INDUSTRIES
Inventor： DATE TAMOTSU , SENDA TERUO , NAKAJI KENJI
Abstract: PURPOSE: To provide a solid-liquid separation process and device therefor for preventing the blockage trouble of a filter cloth by algae and carry out the cleaning operation efficiently for a long time. CONSTITUTION: In a solid-liquid separation process, an alga killing agent is added to raw water before being filtered or ultraviolet rays are emitted thereon, and the raw water is filtered by a fiber filter cloth. This solid-liquid separation device is constituted to be movable endlessly on a filter cloth 3, and alga feed means 6, 7 and 7', or an ultraviolet lamp is set on a raw water supply section 8 formed on a part of area of a moving line or on the upstream side of the raw water supply section 8.
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公开(公告)号：JPH07241414A
公开(公告)日：1995-09-19
申请号：JP3674894
申请日：1994-03-08
Applicant: TORAY INDUSTRIES
Inventor： SENDA TERUO , DATE TAMOTSU , YASUDA HARUHIKO
Abstract: PURPOSE:To provide a solid-liquid separator and a method thereof in which the abrasion of filter cloth is reduced to prolong the service life of the filter cloth by properly performing backwash. CONSTITUTION:A solid-liquid separator is equipped with a filter drum 26 covered with filter cloth 42, a backwashing spray 80 extending outside the filter drum 26 in the direction of its rotating shaft, and plural nozzles 84a, 84b which are formed on the backwashing spray 80 and whose jetting quantity is increased according to the condition of sagging of the filter cloth 42. By washing water jetted from the nozzles 84a, 84b, solid components caught on the inner surface of the filter cloth 42 is washed out.
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公开(公告)号：JPH07241413A
公开(公告)日：1995-09-19
申请号：JP3674794
申请日：1994-03-08
Applicant: TORAY INDUSTRIES
Inventor： SENDA TERUO , DATE TAMOTSU , YASUDA HARUHIKO
Abstract: PURPOSE:To provide a rotary drum type solid-liquid separator in which a filter drum is prevented from being evacuated to become negative pressure. CONSTITUTION:The solid-liquid separator is provided with a filter drum 26 rotatably supported on a horizontal center axis 18 and covered with filter cloth 42 on the outer peripheral surface, a recovery hopper 78 arranged in the filter drum 26 and for recovering solid components caught by the filter cloth 42 together with a filtrate (washing water) jetted from a backup spray 76, a chamber 120 formed in the center axis 18 and for connecting the recovery hopper 78 and piping 124 outside the filter drum 26, and a vent pipe 24 extending from a portion of the center axis 18 placed outside the rotary drum 26 downwards and connected to the chamber 120.
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公开(公告)号：JPS63315113A
公开(公告)日：1988-12-22
申请号：JP15054187
申请日：1987-06-17
Applicant: TORAY INDUSTRIES
Inventor： OTANI MITSUNOBU , DATE TAMOTSU , NAGAYAMA TAKASHI
IPC: B01D33/06
Abstract: PURPOSE:To efficiently recover solid components and to obtain a large treatment capacity by providing a wave consuming means to the inside of a rotary drum. CONSTITUTION:A wave consuming means such as wave consuming plates 36 is provided to the inside of a rotary type filter drum 14. Therefore raw water is introduced to the inside of the filter drum 14 fitted with a filter medium to the drum and the filter drum 14 is rotated. When the components of liquid are passed through the filter medium by means of the difference of liquid surfaces of the inside and outside of the filter drum 14 and solid components are trapped by the filter medium, the liquid surface of the inside of the filter drum 14 is made choppy with the rotation of the filter drum 14 but the above- mentioned wave consuming means 36 acts so that this wave is destroyed and thereby the solid components trapped by the filter medium are prevented from being washed down by wave. The solid components trapped by the filter medium reach the upper part thereof with the rotation of the filter drum 14 and are separated from the filter medium with a removal means provided to the position and discharged to the outside of the filter drum 14 as the recovered components.
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