US3896996A - Injector with holder for an air mixer or the like - Google Patents

Injector with holder for an air mixer or the like Download PDF

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Publication number
US3896996A
US3896996A US462539A US46253974A US3896996A US 3896996 A US3896996 A US 3896996A US 462539 A US462539 A US 462539A US 46253974 A US46253974 A US 46253974A US 3896996 A US3896996 A US 3896996A
Authority
US
United States
Prior art keywords
injector
holder
casing
wall
vessel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US462539A
Other languages
English (en)
Inventor
Robert Jacques Roest
Pieter Van Ruitenberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AIRPROCESS AG
Original Assignee
AIRPROCESS AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AIRPROCESS AG filed Critical AIRPROCESS AG
Application granted granted Critical
Publication of US3896996A publication Critical patent/US3896996A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
    • B01J8/44—Fluidisation grids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
    • B01F33/409—Parts, e.g. diffusion elements; Accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/1818—Feeding of the fluidising gas
    • B01J8/1827—Feeding of the fluidising gas the fluidising gas being a reactant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F2035/35—Use of other general mechanical engineering elements in mixing devices
    • B01F2035/351—Sealings

Definitions

  • ABSTRACT An injector with a holder for detachably disposing the injector in the bottom of the vessel of an apparatus for blowing a gas from below into said vessel, said injector consisting of an injector tube and an injector casing situated at some distance about the injector tube, the adjoining portion of the injector casing and the holder respectively, having identical oonically slanting surfaces one contacting the other at least at one location.
  • the invention relates to an injector with a holder for detachably disposing the injector in the bottom of the vessel of an apparatus; the material to be treated is introduced into the vessel and fluidified by blowing a gas, e.g., air, from below into the vessel, the injector substantially consisting if an injector tube and an injector casing situated at some distance about the injector tube, the casing at its upper end having a closure provided with an opening, corresponding to the outlet of the injector tube situated under said opening.
  • a gas e.g., air
  • the invention aims to provide an injector with holder of a kind satisfying almost ideally the aforementioned conditions. This is achieved such that the end part of the wall of the casing turned away from the closure, is outwardly thickened and generally speaking the face of the thicker wall part turned towards the closure has a conically extending slant, while in the thicker wall part one or more transverse channels are provided each of them connecting the outer peripheral surface of the injector casing with the space between injector tube and injector casing, while the hollow holder further consists of a circumferential wall and on one side a transverse wall in which is provided a central opening having a cross-section inferior to the cross-section of the hollow room in the holder, the edge of the transverse wall surrounding said central opening and turned towards said hollow room showing a conically extending slant so that after fitting the injector in the holder the conically extending faces of the injector casing and of the transverse wall of the holder, respectively, contact each other at least at one location.
  • the thicker wall part of the injector casing limited by the channels arranged in said wall part on one side and on the other side its free lower edge has an outwardly protruding flange
  • the circumferential wall of the holder has an inwardly directed flange underneath the channels in said wall so that after fitting the injector into the holder, the two flanges together with a sealing disposed thereinbetween contact each other forming a gas-tight closure for a portion of the hollow room in the holder, all channels in the injector casing communicating with said portion of the hollow room.
  • the hollow holder forms a portion ofa circumferential channel-shaped elevated part of the bottom of the vessel of the apparatus so that the closed portion of the hollow room in the holder forms a portion of said circumferential channel in the elevated part of the bottom of the vessel.
  • the invention further aims to provide in the circumferential wall of the holder a plurality of channels corresponding to the number of channels in the thicker wall part of the injector casing each of said channels in theholder corresponding to an aligned channel in the injector casing, whereas each channel in the circumferential wall of the holder the end of a feed tube is secured gastightly.
  • FIGS. 1 and 2 show respectively, a longitudinal axial section of two different embodiments of the injector together with its holder according to the invention.
  • a gas for instance air, is introduced under pressure into the room enclosed by the lateral wall of the vessel (not shown), the closing bottom 1 and the porous intermediate bottom 2, whereafte'r said gas is blown through the porous bottom into the room inside the vessel above said porous bottom where it fluidifies the matter to be treated.
  • a holder 3 which by means of a protruding marginal part 4 of its circumferential wall 5 bears on the bottom 1 the connection of said marginal part 4 to said bottom 1 being airtight.
  • the holder 3 is open on its underside and closed at its top side by means of a transverse wall 6 provided with a central opening 7, having a crosssection smaller than the cross-section of the hollow room in the holder 3.
  • the edge of the transverse wall 6 encircling the central opening 7 has a conical bevelled edge 8 turned to the hollow room.
  • the circumferential wall 5 has an inwardly directed flange 9.
  • the circumferential wall 5 is at its inside under the flange 9 provided with a screw thread 10.
  • the injector 11 comprises an injector tube 12 and, at some distance about the tube, an injector casing 13 provided at its top with a detachable closure 14 screwed on the casing and showing a central opening 15.
  • the end portion 16 of the injector casing 13 turned away from the closure 14 is thickened outwards forming a conical bevelled part 17 shaped so that said part 17 corresponds to the conical bevelled part 8 of the holder 3.
  • the end portion 16 of the injector casing 13 is provided at a portion of its inside with a screw thread 18, whereas the thinner lower portion 19 of the thickened part 16 is provided with a screw thread 20.
  • the injector tube 12 has a thicker foot 21 provided at its outside with a screw thread corresponding to the screw thread 18. Therefor the injector tube 12 can be screwed into the injector casing 13, the height of the injector tube 12 adjustable in respect of the injector casing 13 and consequently also the distance of the mouth 22 of the injector tube 12 underneath the closure 14 is adjustable in respect of the opening 15 in the closure 14. The adjusted position can be ultimately secured by means of an adjusting screw 23 arranged in the injector casing 13.
  • the injector 11 can be introduced slidably into the holder 3 until the conically extending slants 8 and 17 adjoin each other, whereupon the injector 11 is secured in said position by means of an adjusting ring 24 which has an outside screw thread that corresponds to the screw thread 10 inside the holder 3.
  • a sealing 25 is clamped between the flange 9 of the holder 3 and an outwardly directed flange 26 of the end portion 16 of the injector casing 13.
  • a room 27 is formed within the holder 3 closed gastightly except for the transverse channels 28 and 28a, respectively, arranged in the thicker part 16 of the injector casing 13, said channels 28 and 28a connecting the room 27 to the room 29 between the injector tube 12 and the injector casing 13.
  • the feed tubes 30 and 30a are connected to supply tubes (not shown) for supplying a gas for instance air under pressure.
  • a nipple 32 screwed into the lower portion of the wall part 16 of the injector casing 13 is provided at one end with an outer screw thread corresponding to the screw thread of the wall part 16 and at the opposed end with outside screw thread 33 for connecting a piping (not shown) for feeding a material which has to be blown in a finely distributed condition into the vessel of this apparatus.
  • each injector 11 is shaped as already described hereinbefore with the exception that in this embodiment the closure is secured fixedly to the injector tube.
  • the injectors 11 can easily be mounted and detached it is extremely advantageous that the slants 8 and 17 need not to adjoin each other gastightly.
  • the pressure of the gas supplied for atomising the material supplied through the injector tube exceeds the pressure of the gas for fluidizing the material in the vesselso that a leakage in opposite direction is not possible.
  • the faces 8 and 17 need not be flat-conical. ln particular cases it may even be advantageous to construct the face 8 and/or the face 17 slightly spherical.
  • Injector with a holder for detachably disposing the injector in the bottom of a vessel receiving material to be treated by being introduced into the vessel and fluidified by blowing a gas from below into said vessel, the injector comprising an injector tube and an injector casing situated at some distance about the injector tube, said casing having at its upper end a closure with an opening corresponding to the outlet of said injector tube situated under said opening, the end portion of the wall of said casing turned away from the closure being outwardly thickened, the face of the thicker wall part turned towards the closure having a conically extending slant, the thicker wall part having at least one transverse channel connecting the outer peripheral surface of the injector casing with the space between injector tube and injector casing, said holder being hollow and comprising further a circumferential wall and on one side a transverse wall with a central opening having a cross-section smaller than the cross-section of the hollow space in the holder, the edge of the transverse wall encircling said central opening and turned
  • injector with a holder as claim 1 including a plurality of channels in the circumferential wall of said holder and corresponding to the number of channels in said thicker wall part of said injector casing, each of said channels in said holder corresponding to a channel in said injector casing and in alignment with the firstmentioned channel.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Organic Chemistry (AREA)
  • Nozzles (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
US462539A 1973-04-25 1974-04-19 Injector with holder for an air mixer or the like Expired - Lifetime US3896996A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7305793,A NL175970C (nl) 1973-04-25 1973-04-25 Injecteur met houder voor het losneembaar aanbrengen in de bodem van een fluidisatievat.

Publications (1)

Publication Number Publication Date
US3896996A true US3896996A (en) 1975-07-29

Family

ID=19818716

Family Applications (1)

Application Number Title Priority Date Filing Date
US462539A Expired - Lifetime US3896996A (en) 1973-04-25 1974-04-19 Injector with holder for an air mixer or the like

Country Status (13)

Country Link
US (1) US3896996A (it)
JP (1) JPS5413026B2 (it)
AU (1) AU471767B2 (it)
CH (1) CH582019A5 (it)
DE (1) DE2418414A1 (it)
DK (1) DK142691B (it)
ES (1) ES425960A1 (it)
FR (1) FR2227058B1 (it)
GB (1) GB1459633A (it)
IT (1) IT1009998B (it)
NL (1) NL175970C (it)
SE (1) SE407968B (it)
ZA (1) ZA742391B (it)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4341512A (en) * 1980-07-31 1982-07-27 Hauck Manufacturing Company Burner
US4960244A (en) * 1989-05-08 1990-10-02 Schering Corporation Atomizing nozzle assembly
WO1993006417A1 (en) * 1991-09-27 1993-04-01 Abb Carbon Ab Method and nozzle for supplying paste fuel to a fluidized bed
US6173862B1 (en) 1999-03-15 2001-01-16 Parker-Hannifin Corporation Beverage dispense head
US6601782B1 (en) 2002-12-23 2003-08-05 Plas-Pak Industries, Inc. Disposable spray nozzle assembly
US9327250B2 (en) * 2014-05-07 2016-05-03 The Babcock & Wilcox Company Fluidizing nozzle or bubble cap assembly for air distribution grid
US20200072460A1 (en) * 2017-04-28 2020-03-05 Sumitomo SHI FW Energia Oy Fluidizing gas nozzle head and a fluidized bed reactor with multiple fluidizing gas nozzle heads

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2611844C3 (de) * 1976-03-20 1978-10-12 Kernforschungsanlage Juelich Gmbh, 5170 Juelich Düse zur Zuführung von Gasen
JP2563896Y2 (ja) * 1989-07-24 1998-02-25 愛知機械工業 株式会社 過給機
US5943858A (en) * 1995-05-19 1999-08-31 Siemens Aktiengesellschaft Premixing chamber for an exhaust gas purification system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3708887A (en) * 1970-09-08 1973-01-09 Fmc Corp Nozzles for fluidized bed vessel construction plate
US3717306A (en) * 1971-03-10 1973-02-20 Hushon R Nozzle for spraying foaming materials
US3756922A (en) * 1969-08-28 1973-09-04 Metallgesellschaft Ag Mixing nozzles for carbonizing fine grain fuels in a fluidized bed

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6607707A (it) * 1966-06-03 1967-12-04

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756922A (en) * 1969-08-28 1973-09-04 Metallgesellschaft Ag Mixing nozzles for carbonizing fine grain fuels in a fluidized bed
US3708887A (en) * 1970-09-08 1973-01-09 Fmc Corp Nozzles for fluidized bed vessel construction plate
US3717306A (en) * 1971-03-10 1973-02-20 Hushon R Nozzle for spraying foaming materials

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4341512A (en) * 1980-07-31 1982-07-27 Hauck Manufacturing Company Burner
US4960244A (en) * 1989-05-08 1990-10-02 Schering Corporation Atomizing nozzle assembly
WO1993006417A1 (en) * 1991-09-27 1993-04-01 Abb Carbon Ab Method and nozzle for supplying paste fuel to a fluidized bed
US5511725A (en) * 1991-09-27 1996-04-30 Abb Carbon Ab Method and nozzle for supplying paste fuel to a fluidized bed
US6173862B1 (en) 1999-03-15 2001-01-16 Parker-Hannifin Corporation Beverage dispense head
US6601782B1 (en) 2002-12-23 2003-08-05 Plas-Pak Industries, Inc. Disposable spray nozzle assembly
US9327250B2 (en) * 2014-05-07 2016-05-03 The Babcock & Wilcox Company Fluidizing nozzle or bubble cap assembly for air distribution grid
US20200072460A1 (en) * 2017-04-28 2020-03-05 Sumitomo SHI FW Energia Oy Fluidizing gas nozzle head and a fluidized bed reactor with multiple fluidizing gas nozzle heads
US11598519B2 (en) * 2017-04-28 2023-03-07 Sumitomo SHI FW Energia Oy Fluidizing gas nozzle head and a fluidized bed reactor with multiple fluidizing gas nozzle heads

Also Published As

Publication number Publication date
SE407968B (sv) 1979-04-30
FR2227058A1 (it) 1974-11-22
GB1459633A (en) 1976-12-22
AU6801774A (en) 1975-10-23
ES425960A1 (es) 1976-07-01
IT1009998B (it) 1976-12-20
FR2227058B1 (it) 1980-05-16
DK142691B (da) 1980-12-22
NL175970B (nl) 1984-09-03
DK142691C (it) 1981-08-10
AU471767B2 (en) 1976-04-29
NL7305793A (it) 1974-10-29
ZA742391B (en) 1975-04-30
JPS5030284A (it) 1975-03-26
DE2418414A1 (de) 1974-11-14
NL175970C (nl) 1985-02-01
JPS5413026B2 (it) 1979-05-28
CH582019A5 (it) 1976-11-30
DE2418414C2 (it) 1987-03-19

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