• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A port assembly for delivering fluid through a shell of a rotary kiln is disclosed with structures for screening and excluding particulate matter from the port during operation of the kiln. The port assembly comprises a cylindrical nozzle defining a nozzle orifice to deliver fluid to the interior of a kiln. A base member secured to one side of the nozzle is provided with a platform extending partly through the nozzle orifice and cooperates with the nozzle to define an annular chamber. Facing surfaces of the base member and nozzle define a fluid distribution cavity for providing fluid to the annular chamber for ultimate distribution into the kiln. An annular shoulder surrounding the platform within the fluid distribution cavity cooperates with a facing surface of the nozzle to define a particle barrier gap. The annular chamber and particle barrier gap form a screening mechanism whereby particles too large to pass into the chamber are excluded and particles small enough to pass into the chamber are excluded by the gap. Passage of particle smaller than the particle barrier gap through the gap is opposed and flushed by a turbulent flow of fluid from the fluid distribution cavity.
    公开号:SU1218934A3
    申请号:SU823514795
    申请日:1982-11-15
    公开日:1986-03-15
    发明作者:Джозеф Петит Петер；Джозеф Гилл Томас
    申请人:Аллис-Чалмерс Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    one
    The invention relates to ovens for treating powdered material of non-uniform particle size, in particular, to the design of a nozzle for supplying gas to a layer of material.
    The purpose of the invention is to increase reliability by preventing the injector from igniting.
    FIG. 1 shows a part of a rotary kiln with nozzles for supplying fuel to a layer of material; in fig. 2 shows section A-A in FIG. one; in fig. 3 - view of the nozzle from the inlet side; in fig. 4 - protrusion of the support element located in the nozzle opening; FIG. 5 is a sectional view of FIG. one; in fig. 6 is a view of the nozzle from the inlet side according to the embodiment shown in FIG. 5, in FIG. 7 - protrusion of the support element, the second option.
    The furnace 1 has a cylindrical body 2 forming a chamber 3. The body 2 has a casing 4 with a lining 5. On the surface of the furnace there are many heads 6 that are distributed around the circumference and in the axial direction opening in chamber 3. As shown in FIG. 2, each head; 6 contains a cylindrical steel pipe 7, fixed in a hole 8 in the wall of the body 2 of the furnace 1. Inside the pipe 7 is installed a nozzle 9 having openings 10 for directing fluid under pressure into chamber 3. In the nozzle 9 there is a central hole 11 with a face 12 for receiving an annular surface 13 for placing the bolt 14. The opposite end of the bolt 14 extends out of the socket 7 and the tongs 15, which is attached to the flange 16 of the socket 7 with bolts 17. A nut 18 is screwed onto the projecting end of the bolt 14, Gas is fed through azhdoy head 6 are provided valves 20 By rotating each valve furnace 1 otkrshaets when the head 6 is rotated under the material layer 21, and is closed when the head 6 comes out from under the material layer. In order to prevent material from entering through the opening 10 of the nozzle 9, each head 6 is provided with a support element 22, which is pressed against the inner surface of the nozzle 9 by a nut 23. Along the circumference,
    9342
    the element 22 has abutments 24 with a hub 25, which protrude axially from the surface 26 towards the nozzle 9, with the result that between the surface 26, the nozzle 9, the stops 24 and the hub 25 a cavity 27 is formed to distribute the fluid. As shown in FIG. 2, the surface 26 of the support element 22 rises from the circumference of the stops 24 towards the hub 25, as a result of which the cavity 27 has a thickness decreasing uniformly from the periphery of the cavity
    5 to the hub 25. The supporting element 22 is provided with a plurality of protrusions 28 and annular shoulders 29, with each protrusion 28 having one protrusion 28 and one annular shoulder 29. The protrusion 28 (FIG. 4) departs from the supporting element 22 and extends in the axial direction through the cavity 27. The diameter of the protrusion 28 is less than the diameter of the hole 10, as a result
    5, this protrusion partially covers the opening, thus forming an annular chamber 30 along with the nozzle. The length of the protrusion 28 is smaller than the axial size of the nozzle. 9, so that
     a cylindrical chamber 31 is formed inside the opening 10, in conjunction with /, with the chamber 3 of the furnace. Axis length ka-; measures 31 is preferably equal to one fifth (but not more than half) of the diameter of the hole 10. The diameter is
    the shoulder 29 is larger than the diameter of the protrusion 28 and larger than the diameter of the hole 10 of the nozzle 9. The axial size of the annular shoulder 29 is smaller than the axial size of the cavity 27, as a result, the gap between each shoulder 29 and the nozzle 9 32. The support element 22 forms, together with the nozzle 7, an annular channel 33 for supplying fluid. In the outer circular surface 34 of the nozzle 9 of the support element 22, a cutout 35 is provided. In the cutout 35, a sealing ring is placed
    0 3.6, fixed in it between the nozzle 9 and the stops 24 and preventing communication between the annular channel 33 and the chamber 3 of the furnace. In the support element (Fig. 5) 22, a series of openings 37 are provided for supplying a fluid medium passing through the supporting element in the axial direction and leading into the cavity 27. Opened
    .3
    37 are at the same distance from the protrusions 28, the surface 26 of the support element 22 is parallel to the nozzle 9 and is located at some distance from it by means of the hub 25 and the circular continuous outer bead 38. In the nozzle 9, the chamfer 39 is formed to form a cylindrical bore 40 coaxially with a hole 0. The diameter of the protrusion 28 is smaller than the diameter of the hole 10, as a result, the protrusion forms an annular chamber 30. The diameter of the annular shoulder 29 is smaller than the diameter of the hole 40, which provides communication between the cavity 27 and the back rum 32,
     The device works as follows.
    Fluid (gas and / vapor) under pressure enters head 6 through conduit 19 and flows through annular channel 33. Seal ring 36 diverts fluid flow and directs it between stops 24 to cavity 27, the thickness of which continuously decreases. from its periphery to sttztice 25, which ensures a uniform distribution of flow to each of the trap particles of gaps 32. The flow is turbulized due to changes in flow direction as it passes through annular channel 33, cavity 27, gaps 32 and annular chamber 30 into chamber 3 peg, I. At the same time Particles: the materials in the furnace undergo a three-stage screening in the heads 6, excluding the possibility of 32 particles, except very small ones, getting into the gap, which are most easily detected and returned to the furnace by a turbulent flow of the medium, i The first stage of screening is that particles whose size is larger than the diameter of the holes I0 cannot pass from the chamber 3 of the furnace into the cylindrical chamber 31, which also prevents the possibility of collisions of large particles and particles entering the chamber 30, which prevents their caking.
    189344
    In addition, the cylindrical chamber 31 prevents particles from having material that has a size approximately equal to the diameter of the hole, from being bombarded by a rolling 5 layer of material. Particles small enough to pass into the cylindrical chamber 31 are sieved a second time, using a much smaller passage into the annular chamber 30. The particles are small enough to pass into the annular chamber 30, the particles are sieved a third time using an even smaller pro (5 stroke per the gap 32. The radial plane of the gap 32 is perpendicular to the annular chamber 30, which prevents compaction of the material in it under the action of forces transmitted from
    The 20 revolving layer through the material, which can accumulate in the annular chamber 30, in the absence of fluid flow through the head. If there is no fluid, some amount of fine-grained material will enter cavity 27, collet channel 33 and internal cavity of pipe 7. When turning head 6 together with furnace body 2, the material inside pipe 7 will be under the force of gravity to fall through the annular channel 33 onto the sealing ring 36. The rollers located in this position above the layer of material can be blown through by passing a fluid through them. As a result of the change in the volume of the channels for the passage of fluid, the flow rate increases, which ensures the blowing of granular material lying on the sealing ring 36 between the stops 24 into the cavity 27, and from there through the gap 32 into the chamber 3. When the device is working (Fig. 5 and 6) fluid flows from the internal cavity of the pipe 7 through the hole 3S
    40
    45
    37
    at
    cavity
    27
    Where
    50
    fluid is distributed through the holes 10 in the nozzle 9.
    12 ff / 4- 57ff 3 S y.
    4, x: /
    2430 ZG gv yu
    fieL
    , 8 28 10 f I f 8 4- IV JVJUi-UXi
    4-; ty--1 - -h I 1
    -. O- - I .-.
    yy
    tt.0 32
    fi.7
      - Compiled by N. Selivanov.
    Editor A.Dolinich Tehred 3.PaliyKorrektor I. Erdvyi with
    Order 1141/63 Circulation 561 Subscription
    VNIIPI USSR State Committee
    for inventions and discoveries P3035, Moscow, Zh-35, Raushsk n. D. 4/5
    Branch PPP Patent, Uzhgorod, st. Project, 4
    权利要求:
    Claims (3)
    [1]
    1. NOZZLE FOR GAS SUPPLY TO A LAYER OF MATERIAL PROCESSED IN A ROTATING FURNACE, comprising a nozzle for supplying gas, a support element with a ring and a hub, and openings in the nozzle body, characterized in that, in order to increase reliability by preventing clogging of the nozzle, made with protrusions located in the nozzle openings and forming an annular chamber with its walls, and annular shoulders made in one piece with the base of the protrusions.
    [2]
    2. Injector according to π. 1, characterized in that the height of the annular chamber does not exceed 0.5 of the diameter of the nozzle orifice.
    [3]
    3. The nozzle according to claim 1, about t l and -. Q which is characterized by the fact that the spacer SS is located less than the radial size of the camera from the nozzle.
    SU „, .1218934
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    同族专利:
    公开号 | 公开日
    SE8206615L|1983-05-24|
    AU9044382A|1983-06-02|
    FI823862A0|1982-11-10|
    SE447674B|1986-12-01|
    US4373909A|1983-02-15|
    CA1200093A|1986-02-04|
    ZA828323B|1983-09-28|
    FR2516810A1|1983-05-27|
    IT1189422B|1988-02-04|
    SE8206615D0|1982-11-19|
    JPH0226156B2|1990-06-07|
    GB2110355B|1984-11-28|
    FI823862L|1983-05-24|
    GB2110355A|1983-06-15|
    FI71421B|1986-09-09|
    DE3242226A1|1983-05-26|
    JPS5895184A|1983-06-06|
    FI71421C|1986-12-19|
    IT8249541D0|1982-11-22|
    PL239166A1|1983-06-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1216667A|1914-12-07|1917-02-20|George F Downs|Process of treating ores.|
    US2091850A|1933-07-29|1937-08-31|American Lurgi Corp|Apparatus for the performance of metallurgical or chemical reactions|
    US3182980A|1963-04-22|1965-05-11|Allis Chalmers Mfg Co|Rotary kiln|
    DE1442600A1|1965-10-15|1969-08-28|Bergwerksverband Gmbh|Anesthesia floor for fluidized beds|
    FR1510085A|1966-12-07|1968-01-19|Saint Gobain|Device for supporting and transporting a sheet-like material on a gas cushion|
    US3794483A|1972-10-31|1974-02-26|Allis Chalmers|Process for delivering fuel and air to a rotary reduction kiln|
    US3847538A|1972-10-31|1974-11-12|Allis Chalmers|Reduction kiln having distribution system|
    US3946949A|1974-09-04|1976-03-30|Allis-Chalmers Corporation|Nozzle for rotary kiln|
    US4070149A|1976-07-23|1978-01-24|Allis-Chalmers Corporation|Controllable distribution system for rotary kiln|
    US4266951A|1978-05-15|1981-05-12|Air Pollution Technology, Inc.|Particle scrubber and related method|
    US4214707A|1979-07-23|1980-07-29|Allis-Chalmers Corporation|Trap-port for rotary kilns|
    DE2952275A1|1979-12-24|1981-07-02|Fried. Krupp Gmbh, 4300 Essen|DEVICE FOR GASSING A TURNTUBE|US4690639A|1984-03-01|1987-09-01|Voorheis Industries, Inc.|Constant pressure variable orifice burner nozzle assembly|
    US5476990A|1993-06-29|1995-12-19|Aluminum Company Of America|Waste management facility|
    DE4333349C2|1993-09-30|1999-03-11|Bayer Ag|Process for the production of alkali chromates from chrome ore|
    EP0801721B1|1995-01-05|1999-09-08|VSR Engineering GmbH Fördertechnik|Replaceable nozzle for high temperature reactors having a fire-resistant lining|
    DE19513203A1|1995-04-11|1996-10-17|Bayer Ag|Fumigation device for rotary kilns|
    FR2733168B1|1995-04-20|1997-06-27|Financ De Gestion Soc|METHOD FOR MOUNTING A GAS INJECTION NOZZLE THROUGH A WALL AND MEANS FOR CARRYING OUT SAID METHOD|
    US6221127B1|1999-11-10|2001-04-24|Svedala Industries, Inc.|Method of pyroprocessing mineral ore material for reducing combustion NOx|
    US20120255584A1|2004-10-06|2012-10-11|Andreas Gramer|Method of cleaning cylinders or rolls|
    DE102004048619A1|2004-10-06|2006-04-13|Sms Demag Ag|Method and device for cleaning rollers|
    CN101776265B|2009-01-08|2012-09-26|上海洪航节能技术有限公司|Energy-saving restaurant fuel gas burner structure|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US06/323,897|US4373909A|1981-11-23|1981-11-23|Gas injecting kiln shell nozzle with particle entry barriers|
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