US3490700A - Gas diffuser nozzle - Google Patents

Gas diffuser nozzle Download PDF

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Publication number
US3490700A
US3490700A US719128A US3490700DA US3490700A US 3490700 A US3490700 A US 3490700A US 719128 A US719128 A US 719128A US 3490700D A US3490700D A US 3490700DA US 3490700 A US3490700 A US 3490700A
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Prior art keywords
cap
shank
nozzle
gas
diffuser nozzle
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Expired - Lifetime
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US719128A
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Hobart M Kern Jr
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Struthers Wells Corp
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Struthers Wells Corp
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    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
    • F26B3/08—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed
    • F26B3/082—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed arrangements of devices for distributing fluidising gas, e.g. grids, nozzles

Definitions

  • An adjustable nozzle to diffuse gas passing through a plate has a tubular shank fixed in the plate with a castellated and threadedtop over which there is screwed a pointed cap containing a pair of transverse apertures, the castellations serving as lateral gas exit orifices and as locking means to receive a locking pin passing through the transverse apertures in the cap.
  • Adjustable nozzles to diffuse gas passing through a fluid bed dryer partition plate each have a tubular shank adapted to be fixed in the plate, the tubular shank having a castellated and threaded upper end over which there is screwed a pointed cap containing a pair of transverse apertures, the castellations serving as lateral gas exit orifices and as locking means to receive a locking pin passing through the transverse apertures in the cap. Rotation of the cap on withdrawal of the locking pin, screws the cap upward or downward on the castellations to vary the size of the slits of the castellations appearing below the cap.
  • This provides a plurality of adjustable orifices to vary the flow of gas therethrough.
  • This nozzle is inexpensive to manufacture, it is easily adjustable, and it directs gas over a partition plate as required.
  • FIGURE 1 is a vertical section through a fragment of a fluid bed dryer partition plate showing a side view of an adjustable diffuser nozzle fixed therein;
  • FIGURE 2 is a longitudinal, vertical section through the tubular shank of the diffuser nozzle
  • FIGURE 3 is a top view of the tubular shank of the diffuser nozzle
  • FIGURE 4 is a longitudinal, vertical section through the pointed cap of the diffuser nozzle
  • FIGURE 5 is a bottom view of the cap
  • FIGURE 6 is a side view of a locking pin.
  • Shank 20 contains a central passage 22 and has an upper shoulder 24 which rests on the top surface of partition plate 10. Shoulder 24 has two flats 25 formed thereon to accommodate a wrench when nozzle 10 is being installed or adjusted.
  • the upper portion 26 of shank 20 above shoulder 24 has threads 28 formed thereon and an even number of castellations 30 cut therein, the castellations 30 having an even number of radial slots 32 and upstanding longitudinal projections 34.
  • the cap 40 Over the upper portion 26 there is screwed downward the cap 40 which has a pointed top 42 with a downward slope of its sides greater than 30 degrees. This prevents any powder or particle buildup on a top 42 in front of the escaping gas passing through nozzle 12. A buildup of powder or other particles to be dried in an upward flow of hot gas can result in the particles fusing together and aggregating to require the shutdown and cleaning of the nozzles.
  • cap 40 contains threads 44 which receive the threads 28 of castellations 30.
  • the edge of top 42 projects well beyond a cylindrical skirt 46 except where two flats 56 are formed in it to enable a wrench to turn cap 40.
  • Cylindrical skirt 46 contains an oppositely disposed pair of apertures 48 to receive a locking pin 50.
  • Pin 50 has a head 52 and a shank 54. The projecting end of shank 54 may be bent over to hold pin 50 in place.
  • Shank 54 passes through apertures 48 and a pair of slots 32 of castellations 30 to lock the cap 40 from rotation.
  • the cap 40 may be screwed upward or downward to adjust the effective size of the slots 32 appearing below skirt 46 which serve as circumferentially located orifices for gas flow from each nozzle 12.
  • the castellations 30 also serve as a locking means to receive the locking pin 50.
  • Nozzle 12 and locking pin 50 are preferably fabricated from stainless steel to resist corrosion.
  • An adjustable nozzle to pass gas through a partition plate of a fluid bed dryer comprising, in combination,
  • a pointed cap having sides sloping downward at an angle greater than 30 degrees, said cap having a cylindrical skirt extending downward below said cap, said cap and said skirt containing an internal threaded opening adapted to be screwed about said castellated upper end of said shank, said cylindrical skirt containing transverse oppositely disposed locking apertures, and

Description

.nm 20, 1970 H. M. KERN. JR 3,490,700
GAS DIFFUSER NOZZLE Filed April 5, 1968 Hg. 6? 52 v 54 United States Patent Ofice 3,490,700 Patented Jan. 20, 1970 3,490,700 GAS DIFFUSER NOZZLE Hobart M. Kern, Jr., Warren Pa., assignor to Struthers Wells Corporation, a corporation of Maryland Filed Apr. 5,-1968, Ser. No. 719,128 Claims priority, application Great Britain, May 2, 1967, 20,178/ 67 Int. Cl. Bb 1/26 US. Cl. 239499 3 Claims ABSTRACT OF THE DISCLOSURE An adjustable nozzle to diffuse gas passing through a plate has a tubular shank fixed in the plate with a castellated and threadedtop over which there is screwed a pointed cap containing a pair of transverse apertures, the castellations serving as lateral gas exit orifices and as locking means to receive a locking pin passing through the transverse apertures in the cap.
BACKGROUND OF THE INVENTION SUMMARY OF THE INVENTION Adjustable nozzles to diffuse gas passing through a fluid bed dryer partition plate each have a tubular shank adapted to be fixed in the plate, the tubular shank having a castellated and threaded upper end over which there is screwed a pointed cap containing a pair of transverse apertures, the castellations serving as lateral gas exit orifices and as locking means to receive a locking pin passing through the transverse apertures in the cap. Rotation of the cap on withdrawal of the locking pin, screws the cap upward or downward on the castellations to vary the size of the slits of the castellations appearing below the cap. This provides a plurality of adjustable orifices to vary the flow of gas therethrough. This nozzle is inexpensive to manufacture, it is easily adjustable, and it directs gas over a partition plate as required.
BRIEF DESCRIPTION OF THE DRAWING FIGURE 1 is a vertical section through a fragment of a fluid bed dryer partition plate showing a side view of an adjustable diffuser nozzle fixed therein;
FIGURE 2 is a longitudinal, vertical section through the tubular shank of the diffuser nozzle;
FIGURE 3 is a top view of the tubular shank of the diffuser nozzle;
FIGURE 4 is a longitudinal, vertical section through the pointed cap of the diffuser nozzle;
FIGURE 5 is a bottom view of the cap; and
FIGURE 6 is a side view of a locking pin.
DESCRIPTION OF THE PREFERRED EMBODIMENT Partition plate 10 of a fluid bed dryer has a regular pattern of gas diffuser nozzles 12 each fixed in apertures 14 by means of nuts 16 turned on the lower ends 18 of its tubular shank 20. Shank 20 contains a central passage 22 and has an upper shoulder 24 which rests on the top surface of partition plate 10. Shoulder 24 has two flats 25 formed thereon to accommodate a wrench when nozzle 10 is being installed or adjusted. The upper portion 26 of shank 20 above shoulder 24 has threads 28 formed thereon and an even number of castellations 30 cut therein, the castellations 30 having an even number of radial slots 32 and upstanding longitudinal projections 34.
Over the upper portion 26 there is screwed downward the cap 40 which has a pointed top 42 with a downward slope of its sides greater than 30 degrees. This prevents any powder or particle buildup on a top 42 in front of the escaping gas passing through nozzle 12. A buildup of powder or other particles to be dried in an upward flow of hot gas can result in the particles fusing together and aggregating to require the shutdown and cleaning of the nozzles.
The inside of cap 40 contains threads 44 which receive the threads 28 of castellations 30. The edge of top 42 projects well beyond a cylindrical skirt 46 except where two flats 56 are formed in it to enable a wrench to turn cap 40. Cylindrical skirt 46 contains an oppositely disposed pair of apertures 48 to receive a locking pin 50. Pin 50 has a head 52 and a shank 54. The projecting end of shank 54 may be bent over to hold pin 50 in place. Shank 54 passes through apertures 48 and a pair of slots 32 of castellations 30 to lock the cap 40 from rotation.
From the foregoing, it may be seen that the cap 40 may be screwed upward or downward to adjust the effective size of the slots 32 appearing below skirt 46 which serve as circumferentially located orifices for gas flow from each nozzle 12. The castellations 30 also serve as a locking means to receive the locking pin 50. Nozzle 12 and locking pin 50 are preferably fabricated from stainless steel to resist corrosion.
While this invention has been shown and described in the best form known, it will nevertheless be understood that this is purely exemplary and that modifications may be made without departing from the spirit and scope of the invention.
What is claimed is:
1. An adjustable nozzle to pass gas through a partition plate of a fluid bed dryer comprising, in combination,
(a) a tubular shank having a lower portion adapted to pass through and be fixed to a partition plate,
(b) an annular shoulder at the upper end of said shank to rest on said partition plate,
(c) a castellated upper end of said tubular shank projecting above said shoulder, said castellated upper end containing radial slots and having upstanding projections therebetween, said castellated upper end having external threads formed thereon,
(d) a pointed cap having sides sloping downward at an angle greater than 30 degrees, said cap having a cylindrical skirt extending downward below said cap, said cap and said skirt containing an internal threaded opening adapted to be screwed about said castellated upper end of said shank, said cylindrical skirt containing transverse oppositely disposed locking apertures, and
(e) a locking pin extending through said locking aper- 3 4 tures and through oppositely disposed radial slots in References Cited the castellated upper end of said shank, the screwing UNITED STATES PATENTS of said cap upward and downward on said castellated upper d f id hank enlarging and restricting the 968605 8/1910 Ruud. 239 567 exposed length of said radial slots bel w S d Skirt 0f 5 2 3 1 er Sald cap, the exposed length of said radial S ts s 3,335,963 8/1967 was 239 568 ing as gas exit orifices. 2. The combination according to claim 1 wherein the lower portion of said shank is threaded.
3. The combination according to claim 2 wherein the 10 U S Cl XR sides of said pointed cap and the sides of said annular shoulder have oppositely disposed flats formed therein. 239--567, 568, 601; 261124 EVERETT W. KIRBY, Primary Examiner
US719128A 1967-05-02 1968-04-05 Gas diffuser nozzle Expired - Lifetime US3490700A (en)

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GB20178/67A GB1180605A (en) 1967-05-02 1967-05-02 Gas Diffuser Nozzle

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4163035A (en) * 1978-01-16 1979-07-31 Egon Gorsky Aquarium water aeration device
US4259182A (en) * 1979-07-26 1981-03-31 Houston Systems Manufacturing Co. Waste treatment apparatus
US4279842A (en) * 1979-07-26 1981-07-21 Houston Systems Manufacturing Co., Inc. Air diffuser assembly
WO1982000135A1 (en) * 1980-07-02 1982-01-21 R Belveal Waste treatment apparatus
US4843050A (en) * 1986-06-27 1989-06-27 Phillips Petroleum Company Catalyst regeneration
US5171540A (en) * 1991-02-25 1992-12-15 Phillips Petroleum Company Catalyst regeneration
WO2002013959A1 (en) * 2000-08-16 2002-02-21 Beta Heat Treatment Limited Gas air distribution
US20120214109A1 (en) * 2011-02-22 2012-08-23 Alstom Technology Ltd Fluidizing nozzle weld collar

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8629055D0 (en) * 1986-12-04 1987-01-14 Keirle T J Fluidised bed furnaces
GB8817077D0 (en) * 1988-07-18 1988-08-24 Keen J Fluid outlet nozzle
GB2292104A (en) * 1994-07-07 1996-02-14 Paul David Hargreaves Retractable Injector Carrier Assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US968605A (en) * 1908-02-01 1910-08-30 Edwin Ruud Pilot-light burner for water-heaters.
US2396449A (en) * 1945-03-08 1946-03-12 Spraying Systems Co Spray nozzle
US3163684A (en) * 1961-12-22 1964-12-29 Link Belt Co Gas diffusion apparatus
US3335963A (en) * 1964-12-31 1967-08-15 Union Tank Car Co Nozzle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US968605A (en) * 1908-02-01 1910-08-30 Edwin Ruud Pilot-light burner for water-heaters.
US2396449A (en) * 1945-03-08 1946-03-12 Spraying Systems Co Spray nozzle
US3163684A (en) * 1961-12-22 1964-12-29 Link Belt Co Gas diffusion apparatus
US3335963A (en) * 1964-12-31 1967-08-15 Union Tank Car Co Nozzle

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4163035A (en) * 1978-01-16 1979-07-31 Egon Gorsky Aquarium water aeration device
US4259182A (en) * 1979-07-26 1981-03-31 Houston Systems Manufacturing Co. Waste treatment apparatus
US4279842A (en) * 1979-07-26 1981-07-21 Houston Systems Manufacturing Co., Inc. Air diffuser assembly
WO1982000135A1 (en) * 1980-07-02 1982-01-21 R Belveal Waste treatment apparatus
US4843050A (en) * 1986-06-27 1989-06-27 Phillips Petroleum Company Catalyst regeneration
US5171540A (en) * 1991-02-25 1992-12-15 Phillips Petroleum Company Catalyst regeneration
WO2002013959A1 (en) * 2000-08-16 2002-02-21 Beta Heat Treatment Limited Gas air distribution
GB2382314A (en) * 2000-08-16 2003-05-28 Beta Heat Treat Ltd Gas air distribution
US20120214109A1 (en) * 2011-02-22 2012-08-23 Alstom Technology Ltd Fluidizing nozzle weld collar

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