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31. 发明专利

JPS5696983A SILICA REMOVAL IN ALKALINE PULP MAKING METHOD 失效
公开(公告)号：JPS5696983A
公开(公告)日：1981-08-05
申请号：JP17447180
申请日：1980-12-10
申请人： DORR OLIVER INC
发明人： ERIOTSUTO JIYON ROBAATSU
IPC分类号： D21C3/22 , D21C11/04

32. 发明专利

JPS5524590A GRAVITY SETTLING METHOD OF SUSPENDED SOLID MATTER AND DEVICE FOR SAID METHOD 失效
公开(公告)号：JPS5524590A
公开(公告)日：1980-02-21
申请号：JP12903278
申请日：1978-10-19
申请人： DORR OLIVER INC
发明人： PIITAA KOSU
IPC分类号： B01D21/24 , B01D21/00 , C02F1/00

33. 发明专利

JPS54163782A FLOW DISTRIBUTOR FOR FLUIDIZED TYPE BIOLOGICAL REACTOR 失效
公开(公告)号：JPS54163782A
公开(公告)日：1979-12-26
申请号：JP6213279
申请日：1979-05-19
申请人： DORR OLIVER INC
发明人： PIITAA KOSU
IPC分类号： C02F3/08 , B01D15/02 , B01J4/00 , B01J8/00 , B01J8/18 , B01J8/20 , B01J47/02 , B01J47/10 , C02F3/00 , C02F3/12 , C12M1/40

34. 发明专利

JPS5285765A CONTINUOUS OPERATION TYPE PRECIPITATION TANK 失效
公开(公告)号：JPS5285765A
公开(公告)日：1977-07-16
申请号：JP16089376
申请日：1976-12-27
申请人： DORR OLIVER INC
发明人： TOOMASU UU
IPC分类号： B01D21/06

35. 发明专利

JPS5237269A NOZZLE TYPE CENTRIFUGAL SEPARATOR 失效
公开(公告)号：JPS5237269A
公开(公告)日：1977-03-23
申请号：JP10683976
申请日：1976-09-08
申请人： DORR OLIVER INC
发明人： ANDORIYUU CHIYAARUTON
IPC分类号： B04B1/08 , B04B11/08 , B04B1/14

36. 发明专利

JPH0615118A SELECTOR 失效
公开(公告)号：JPH0615118A
公开(公告)日：1994-01-25
申请号：JP32485092
申请日：1992-11-10
申请人： DORR OLIVER INC
发明人： KURUTO EE PIICHIYU
IPC分类号： B01D33/06 , B07B1/18 , B07B1/46 , B07B1/48
摘要： PURPOSE: To rapidly and easily exchange filter cloth over the entire area of a cartridge by holding the peripheral edge portion of a web of a screening material inserted into the groove of a cartridge frame in the groove by means of a cord of elastic material mounted in the groove. CONSTITUTION: This screening cartridge 18 is constituted by mounting the peripheral edge of the filter cloth, i.e., the screen 2 into the groove 12, then press fitting the cloth into the groove 12 by bringing the elastic rubber cord 3 into pressurized contact with the surface of the filter cloth 2 and spreading the filter cloth 2. To remove the rubber cord 3 and the filter cloth 2 from the groove 12, the one end of the rubber cord 3 is lifted from the groove 12 and the rubber cord 3 is gradually pulled up from the groove 12 from its one end. The filter cloth 2 is then simultaneously opened. The screening cartridge 18 constitutes a module construction for the purpose of a screening drum. Then, the exchange of the screening cartridge as a whole is made possible as well and the exchange of only the filter cloth is possible as well.

37. 发明专利

JPH05285422A 失效
公开(公告)号：JPH05285422A
公开(公告)日：1993-11-02
申请号：JP1967493
申请日：1993-01-12
申请人： DORR OLIVER INC
发明人： JIYOOJI EI RORENSU
IPC分类号： B03B11/00 , B03D1/14 , B03D1/16
摘要： PURPOSE: To decrease the cost and to enhance efficiency of recovery of mineral by constituting the machine of an inlet box and an outlet box provided on one vertical cylindrical floatation cell and a cell, a revolving mechanism for generating mineral-rich froth, and a hexagonal overflow froth launder for collecting mineral-rich froth. CONSTITUTION: A froth floatation machine 50 is provided with at least one of the vertical cylindrical floating cells 52-59 having the upper end, and the inlet boxes 64, 66 provided with the cells 52-59, and the outlet boxes 68, 70 provided on the cells 52-59. The machine is constituted such that revolving mechanisms 60, 61, 62 are respectively arranged in the cells 52, 54, 56 in order to generate mineral-rich froth, and the entire periphery of the upper end of the cells 52-56 is extended around it in order to collect the mineral-rich froth, and hexagonal overflow froth launders 84, 88, 89 and 94 are attached to the upper end.

38. 发明专利

JPH03182913A METHOD AND APPARATUS FOR MONITORING AND CONTROLLING PHYSICAL CONDITION OF NONCOMPRESSIVE FLUID 失效
公开(公告)号：JPH03182913A
公开(公告)日：1991-08-08
申请号：JP4135190
申请日：1990-02-23
申请人： DORR OLIVER INC
发明人： KUROODO BAAREMUBOISU
IPC分类号： G05D24/00 , G05D7/06
摘要： PURPOSE: To quantitatively and qualitatively control the local instantaneous density of an incompressible fluid like pulp by detecting the average state of the density of the fluid having a prescribed capacity by the length of the movement time of this fluid. CONSTITUTION: A pneumatic pump 1 is charged with sludge 12 by gravity to push up a diaphragm 16, and a controller 33 opens the air passage of a valve 5 by the signal from an upper detector 29 to introduce compressed air to an upper chamber 15a of the pump 1, and the diaphragm 16 is displaced downward to discharge the sludge 12 out of the pump. The controller 33 closes the air passage of the valve 5 by the signal from a lower detector 30 and opens the exhaust passage of the valve 5. Simultaneously, the sludge delivery time based signals of detectors 29 and 30 is stored in the controller 33, and the controller 33 controls the pump delivery speed so that the difference between the actually measured delivery time and a reference value is eliminated. The length of the delivery time shows the average state of the density of the sludge having the prescribed capacity. Thus, the local instantaneous density of the incompressible fluid is quantitatively and qualitatively controlled.

39. 发明专利

JPS61274711A DEHYDRATION METHOD AND APPARATUS FOR REMOVING WATER FROM SOLID SUSPENSION 失效
公开(公告)号：JPS61274711A
公开(公告)日：1986-12-04
申请号：JP11242586
申请日：1986-05-16
申请人： DORR OLIVER INC
发明人： JIYOZEFU BII KARUKIN
IPC分类号： B01D61/16 , B01D35/06 , B01D57/02 , B01D61/20 , B01D61/22 , B01D61/26 , B01D61/30 , B01D61/32 , B01D61/34 , B01D61/42 , B01D61/44 , B01D61/50 , B01D61/54 , B01D61/58

40. 发明专利

JPS6124048B2 JPS6124048B2 - 失效
公开(公告)号：JPS6124048B2
公开(公告)日：1986-06-09
申请号：JP6420578
申请日：1978-05-29
申请人： Dorr Oliver Inc
发明人： UORUFURETSUDO UIRUHERUMU JUKOORA , JOOJO TOMASHIKIO
IPC分类号： B01J8/00 , B01J8/28
CPC分类号： B01J8/003 , B01J8/28 , B01J2208/00761 , Y10T137/86324

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