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11. 发明专利

FI27652A Sätt vid bränning av kalkförande uppslamningar 未知
公开(公告)号：FI27652A
公开(公告)日：1955-04-12
申请号：FI27652D
申请人： DORR CO
发明人： BARKER THOMPSON ROBERT
IPC分类号： C04B1/02

12. 发明专利

FR1091092A 未知
公开(公告)号：FR1091092A
公开(公告)日：1955-04-06
申请号：FR1091092D
申请日：1953-11-24
申请人： DORR CO
IPC分类号： B03B5/54

13. 发明专利

GB724656A Improvements in or relating to multiple hydrocyclones 未知
公开(公告)号：GB724656A
公开(公告)日：1955-02-23
申请号：GB176253
申请日：1953-01-21
申请人： DORR CO
IPC分类号： B04C5/02 , B04C5/04 , B04C5/081 , B04C5/28
摘要： 724,656. Centrifugal separators. DORR CO. Jan. 21, 1953 [Jan. 25, 1952], No. 1762/53. Class 23. A multiple hydrocyclone comprises a cylindrical or rectangular rubber block 1, Fig. 1, having a hole 2, at least one ring-like series of bores 3 and sealing lips 4, 5. Each bore has a rubber cover 9, Fig. 3, which has a feed channel 14, a vortex finder 12 and an interrupted cylindrical wall 10 for locating the cover in a like groove disposed in the block 1. The covers 9, together with perforated inlet and outlet plates 23, 22 and the block 1 are clamped between a housing 18 and a cover 24. The housing 18 has inlet and outlet pipes 19, 32 and the cover 24 has an outlet pipe 33. The cover may be modified as shown in Fig. 6, the diameter of a recess 48 therein corresponding to that of the cylindrical bore 6 in the block 1 whereby the length of the said bore 6 can be correspondingly reduced. Two such hydrocyclones may be arranged in series.

14. 发明专利

GB724583A A drive mechanism or drive-head for imparting reciprocating movements 未知
公开(公告)号：GB724583A
公开(公告)日：1955-02-23
申请号：GB935753
申请日：1953-04-07
申请人： DORR CO
IPC分类号： F04B1/06 , F16H21/20
摘要： 724,583. Linkwork. DORR CO. April 7, 1953 [May 3, 1952], No. 9357/53. Class 80 (3) [Also in Group XXVIII]. A driving head comprises a motor 20 and reduction gearing 21 having a shaft 22 on which is mounted a crankpin 56 that reciprocates a rod 50 through a linkage shown in Fig. 9. The crankpin 56 is connected by a link 51 to a lever 42 pivoted at 59 on an adjustable bracket 33; the rod 50 is pivotally connected to the bracket 33. The adjustable bracket 33 is pivoted on a boss on an adaptor bracket 30 secured to the gear box 21 and the boss is coaxial with the axis of the shaft 22. The stroke of the rod 50 is varied by adjusting a nut 38 on a screwed spindle 24 carried by the bracket 30, the nut engaging slots 36a in the bracket 33. An alternative arrangement is shown in Fig. 12, in which the lever 42 is supported on an adjustable bracket 62 by a pair of parallel links 65, 66. As shown in Fig. 2, a diaphragm pump 14 1 is actuated by the rod 50 and supported by a bracket 16 on a column 11 that has a platform 13 that carries the driving head.

15. 发明专利

FR1086460A 未知
公开(公告)号：FR1086460A
公开(公告)日：1955-02-14
申请号：FR1086460D
申请日：1953-07-23
申请人： DORR CO
IPC分类号： C22B1/10

16. 发明专利

GB721402A Roasting of sulfides 未知
公开(公告)号：GB721402A
公开(公告)日：1955-01-05
申请号：GB2298552
申请日：1952-09-12
申请人： DORR CO
发明人： ROBERTS ELLIOTT JOHN , FOLEY RUPERT MERRICK , WELLS DAVID FRANCIS
IPC分类号： C01B17/52
摘要： Sulphur dioxide substantially free from sulphur trioxide and sulphur is produced by roasting finely divided iron sulphide-bearing material, e.g. at 800 DEG C., in a fluidized bed by means of a free oxygen-bearing gas, to produce a gas comprising sulphur dioxide and sulphur, discharging roasted particles containing a minimum of 2 per cent, preferably of 4-6 per cent, by weight of sulphidic sulphur from the bed and supplying oxygen to the gas to convert sulphur to sulphur dioxide, overoxidation of the gas being prevented by the presence of entrained iron-bearing compounds therein. In one described embodiment illustrated by Fig. 1, the sulphide-bearing material is fed to a bed 17 from hopper 43 and roasted autogenously in a fluidized condition by a gas entering through porous grate 31. The gases rising from the bed and containing entrained iron compounds are passed to a cyclone 70 by means of a pipe 63 into which air or oxygen is introduced to convert sulphur present therein to sulphur dioxide. The solids separated by the cyclone may if desired be returned to the lower fluidized bed 18 into which the partly roasted solid overflows. This bed is fluidized by means of air entering at 47 and sulphidic materials are completely oxidized with formation of gases which are used to fluidize the upper bed. In a second embodiment the lower bed is replaced by a conventional sintering machine e.g. of the moving grate type and the gases from the sintering containing sulphur vapour and sulphur trioxide, are used with additional air to fluidize the first stage of the process. Cooling of the bed in which partial roasting takes place may be by means of water entering by means of a spray head 27 or by a coil immersed in the bed.

17. 发明专利

FR1080901A 未知
公开(公告)号：FR1080901A
公开(公告)日：1954-12-14
申请号：FR1080901D
申请日：1953-06-11
申请人： DORR CO
IPC分类号： C01F7/44 , F27B15/00

18. 发明专利

GB712792A Process and apparatus for classifying solid materials in a hydrocyclone 未知
公开(公告)号：GB712792A
公开(公告)日：1954-07-28
申请号：GB1411352
申请日：1952-06-04
申请人： DORR CO
IPC分类号： B04C5/15 , B04C5/18
摘要： 712,792. Centrifugal - separators; washing granular materials. DORR CO. June 4, 1952 [June 14, 1951], No. 14113/52. Classes 23 and 82 (2) [Also in Group XXIX] Slime is removed from a liquid suspension of coarser solids interspersed with slime in a hydro-cyclone comprising a cylindrical part 121, a conical part 122, an inlet 126, for the suspension tangential to the cylindrical part, inlets 141 ... 144 for desliming liquid tangential to the conical part, an outlet 129 for slime, and an outlet 197 for the coarser solids. The outlet 197 has an apertured rubber block 193 which may be axially compressed to control the diameter of the discharge passage through the outlet: The plant shown in Fig. 8 contains a hydro-cyclone 20 having inlets 240 for desliming liquid. Coal slurry is fed to the hydro-cyclone and water is the desliming liquid. The coarser solids from the hydro-cyclone are led to a filter 242, and the water extracted by the filter forms part of the desliming liquid. The slime from the hydro-' cyclone is separated in a hydro-cyclone 247, the clear water from which is also used as desliming liquid. Any additional water required for desliming is supplied by a pipe 252. Dimensions and performance figures are given in the Specification.

19. 发明专利

CA503088A LIQUID PERMEABLE TANK BOTTOMS FOR BEDS OF GRANULAR MATERIAL 未知
公开(公告)号：CA503088A
公开(公告)日：1954-05-25
申请号：CA503088D
申请人： DORR CO
发明人： LUNDBERG HARRY E

20. 发明专利

GB709174A Apparatus for clarification treatment of solids-carrying liquids 未知
公开(公告)号：GB709174A
公开(公告)日：1954-05-19
申请号：GB2394752
申请日：1952-09-24
申请人： DORR CO
发明人： TALBOT HENRY JOHN
IPC分类号： B01D21/06 , C02F3/22
摘要： 709,174. Treating sewage ; softening water; gravity-separation apparatus. DORR CO. Sept. 24, 1952, No. 23947/52. Classes 46 and 111 Apparatus in which a clarification compartment surrounds a flocculation (or equivalent) compartment, and such as is exemplified in Specification 532,002, is characterized chiefly in that the bottom of the central compartment is at a lower level than that of the surrounding clarification compartment. Scrapers 36 operating on the bottom of a clarification zone Z2 are suspended directly from a truss arm 25 driven by a motor 29, and scrapers 34 operating on the bottom of a flocculating zone Z1 are attached to a cage 30 surrounding, and rotating upon a thrust bearing 31 on the top of, a central feed pier 13. The inner end of the truss 25 is connected to the cage 30 and thus to the bearing 31. Upstanding from the scraper arms 32 and 33 are paddle members 37 and between them are rotated at a greater speed paddle members 38 depending from arms 42 and 43 secured to a cage structure 41 mounted on a bearing 40 on top of the cage 30 and driven through a bevel gear 50 by a pinion 49 driven in turn by a motor 44 on the truss 25. Liquid fed into the pier 13 flows outwards at its top and passes downwards into the flocculation zone proper, defined generally by the overlapping portions O of the paddle members and, at the bottom, also by a radial shelf 23. Some solids settle ; the liquid carrying the remainder passes through slots 19 into the clarification zone Z2 from which clarified liquid overflows at E. Solids from both zones eventually reach a sump 24. In Fig. 1a (not shown) the paddles are dispensed with and, instead, radial perforated aerating pipes are suspended from the truss 25 in the inner compartment and are fed by a motor-driven blower located on the truss arm 25.

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