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公开(公告)号：JP2000279715A
公开(公告)日：2000-10-10
申请号：JP8626999
申请日：1999-03-29
Applicant: TORAY INDUSTRIES
Inventor： FUJITANI KENICHI , SENDA TERUO
Abstract: PROBLEM TO BE SOLVED: To surely prevent the clogging of a nozzle and filter cloth and to stabilize the separation and dehydration treatment capability of a solid component and liquid component by equipping the apparatus with a filter cloth washing means having the self-washing type nozzle and a washing fluid supplying means which is capable of intermittently changing the supply pressure of the washing fluid to the self-washing type nozzle. SOLUTION: The filter cloth 2 is circumferentially rotated by a drive roll 3 and a pressure reduction vessel 6 is internally decompressed by a pressure reduction blower 14. The original liquid supplied to a original liquid supply vessel 5 is forcibly sucked to the pressure reduction suction vessel 6 side via the filter cloth 2 to suck the liquid component in the original liquid by the pressure reduction suction vessel 6. The solid component is captured by the filter cloth. The liquid component is once stored in a sealing vessel 10. On the other hand, the solid component is transferred together with the filter cloth 2 to a pressure dehydrating means consisting of a metallic drum 7, a pressure roll 8, etc., and is transferred to the metallic drum 7 side, following which the solid component is scraped by a scraper 9 and is dropped to a cake receiving vessel 17. The surfaces of the filter cloth 2 are thereafter washed by the washing means 3 having the self-washing type nozzle.
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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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公开(公告)号：JPH08243310A
公开(公告)日：1996-09-24
申请号：JP7958495
申请日：1995-03-09
Applicant: TORAY INDUSTRIES
Inventor： SENDA TERUO , MORI SHIGERU
IPC: B01D29/01
Abstract: PURPOSE: To provide a reversible filter which is low in operating cost and by which the volume of waste is reduced. CONSTITUTION: A filter chamber 7 is divided into the 1st and the 2nd filter chambers 10a, 10b by a filter medium 9. The filter medium 9 is constituted by supporting each back surface of two filter cloths 11a, 11b having fluff 13 on the surface thereof on wire net 12. When water to be filtered is fed into the 1st filter chamber 10a through a pipe 5a, a filtered material in the water to be filtered is caught and separated by the fluff 13 on the surface of the filter cloth 11a, and filtered water after filtration is discharged through the 2nd filter chamber 10b and the pipe 5b (the 1st filter operation). When water to be filtered is fed into the 2nd filter chamber 10b through a pipe 5b, a filtered material in the water to be filtered is caught and separated by the fluff 13 on the surface of the filter cloth 11b and filtered water after filtration is discharged through the 1st filter chamber 10a and the pipe 5a (the 2nd filter operation). Switching between the 1st and the 2nd filter operations is periodically done to continuously filter the water to be filtered.
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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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Patent Agency Ranking
公开(公告)号：JPH0839097A
公开(公告)日：1996-02-13
申请号：JP19776894
申请日：1994-07-29
Applicant: TORAY INDUSTRIES , ACE CLEAN KK
Inventor： SENDA TERUO , MIYAMOTO TETSUYA , NAKAI EIJI
Abstract: PURPOSE:To provide the objective apparatus efficiently performing the cleaning work of a road culvert or sewer pipe. CONSTITUTION:A sand sedimentation tank 1 separating earth and sand of polluted water taken out of a road culvert or sewer pipe, a screen filter device 2 roughly filtering supernatant water of the sand sedimentation tank 1, a flocculation reaction tank 3 flocculating a contaminant in roughly filtered water, a sedimentation tank 4 sedimenting the flocculated contaminant, a rotary drum type continuous filter device 5 finely filtering supernatant water of the sedimentation tank 4 and using a part of the obtained purified water to collect conc. water of the contaminant and a concn. water storage tank 5 sending conc. water to the sedimentation tank 4 by a pump 59 are provided on the bed of a truck 8. Further, a sedimented matter flocculation reaction device 6 flocculating the sedimented matter of the sedimentation tank 4, a fabric running type dehydration device 7 dehydrating the flocculated sedimented matter to take out the same as a cake and a waste water storage tank 75 sending waste water squeezed but by dehydration to the sedimentation tank 4 by a pump 76, etc., are mounted on the bed of the truck 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：JPH07195097A
公开(公告)日：1995-08-01
申请号：JP28792494
申请日：1994-11-22
Applicant: TORAY INDUSTRIES
Inventor： MIYAMOTO TETSUYA , YOKOYAMA FUMIO , SENDA TERUO , HATANO YUKIO
Abstract: PURPOSE:To purify overflowing water in a pool and to reuse it. CONSTITUTION:The overflowing water in a pool flows to a hair cather 1 and then is filtered by using a rotary drum type solid-liquid separator 2 provided with filter cloth having a filter layer made of bristles of extra fine fiber having 0.1-10mum diameter on the surface, and the obtained filtered water is irradiated with ultraviolet rays by an ultraviolet irradiation device 3 and fine filtration is besides performed by using a hollow yar membrane type filter 4 and the obtained purified water is circulated to a pool and reused.
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公开(公告)号：JPH07171551A
公开(公告)日：1995-07-11
申请号：JP32021093
申请日：1993-12-20
Applicant: TORAY INDUSTRIES
Inventor： MIYAMOTO TETSUYA , SENDA TERUO
IPC: C02F1/00
Abstract: PURPOSE:To shorten the time required for obtaining an optimum lake and marsh purifying system by setting lake and marsh purifying parameters based on target water quality data, physical data and variation with time data for lakes and marshes to be purified. CONSTITUTION:Variation with time data is selected out of water quality variation with time data kept in a variation with time data keeping section 5 by a variation with time data selecting section 6 based on a data forming a part of physical data, for instance, positions for lakes and marshes measured by a physical data measuring section 2. Data representing the transition of water quality of lakes and marshes to be purified are computed by a water quality transition data computing section 7 based on water quality data and variation with time data prepared by a water quality measuring section 3. Data forming a part of the physical data, for instance, surface area, water storage amount, depth, outflow water amount and the like, data representing the water quality, data representing a lake and marsh purifying system based on the target water quality and various kinds of parameters for the lake and marsh purifying system based on the target water quality are set up by a parameter setting section 8.
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