• 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:
    1501671 Burners ALLIS-CHALMERS CORP 21 Aug 1975 [4 Sept 1974] 34794/75 Heading F4T A fluid-delivery nozzle 20 for a rotary orereducing kiln 10 comprises a hollow elongated body 22 to be mounted on the outside of the kiln to rotate therewith, closed at one end to form a chamber 75 connectible to a fluid source, a hollow sleeve 36 extending through body 22, a nozzle tip 40 having a fluid passage 42 therethrough, a liquid fuel tube 38 slidably received within sleeve 36 and connectible to a liquid fuel supply 68, an inlet port 62 in the nozzle body, and an outlet port 64 which communicates with nozzle chamber 75 for the passage of gaseous fluid. There may be more than a hundred nozzles 20 circumferentially and axially spaced on the surface of the kiln. In operation, methane may be used as the reductant so that as a given nozzle 20 rotates with the kiln, beneath the bed of ore, the gas enters port 62, passes into chamber 75 and out through port 64. As the nozzle moves from beneath the bed, port 62 is disconnected, and when the nozzle reaches an elevated position above the bed of ore, port 62 is connected to a source of oxidizing gas. Instead of using gas as the reductant however, oil may be supplied through oil tube 38 and passes into the kiln through passages 39, 41, 42 and orifice 60, the oxidizing gas being supplied through ports 62, 64, as before, the fuel and gas supply being controlled by a valving system. Oil tube 38 is adjustable in sleeve 36 and can be reciprocated therein in order to clean the nozzle, or removed so that a cleaning rod or a different oil tube can be inserted. Ore is prevented from entering chamber 75 by a baffle 70. In a modification, the nozzle tip is mounted substantially flush with the inner bore of the kiln and the gases discharge through ports (112) in a direction parallel to the axis of the nozzle Figs. 2, 3 (not shown). The oil tube 38 and sleeve 36, are cooled by the oxidizing gas (air) which passes through chamber 75.
    公开号:SU912060A3
    申请号:SU752168218
    申请日:1975-09-04
    公开日:1982-03-07
    发明作者:Фрэнк Росси Юджин
    申请人:Эллис-Чалмерз Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to a device for supplying a fluid to a rotary kiln used for the reduction of ore, for example during the roasting of iron ore.
    In such furnaces, a large number of fluid supply devices are used, which are mounted outside the furnace shell and rotate with the furnace, and the devices, when mounted on the furnace, pass radially inwardly through the furnace wall relative to the furnace axis and communicating with the cavity of the furnace, provide the fluid inside the latter. Such devices are installed with a gap between them at the periphery of the furnace and axially along the length of the shell 16. Each device includes a hollow body, which rotates radially outwardly relative to the axis with its projecting radially outwardly. the end of the furnace is connected to a source of fluid 1.20
    The closest to the proposed technical essence and the achieved result is a device for supplying fluid to a rotating tubular kiln containing a hollow body with an inlet 26
    and gas outlets, attached to the lined casing of the furnace and connected to its cavity, branch pipes with valves and clamping mechanisms 2.
    The drawback of the device is the large carbon deposition in it due to the high temperature conditions.
    The purpose of the invention is to reduce carbon deposition.
    The goal is achieved by the fact that the casing is provided with a coaxially arranged tube connected to the tip having a hole in the cavity of the furnace, and inside it there is an optional sliding fuel tube equipped with a clamping mechanism.
    Moreover, the tip is made perforated and installed flush with the lining.
    In addition, the body is made of telescopically connected sleeves ..
    权利要求:
    Claims (2)
    [1]
    FIG. Figure 1 shows the proposed device for delivering fluid to a rotary kiln, a section in the horizontal plane (the apparatus passes through the wall of the rotary kiln and protrudes into the interior of the kiln); in fig. 2 - the same, the inner end of the device is located generally flush with the inner annular surface of the nech into which the device is inserted, and does not protrude inside the furnace; in fig. 3 - vnd A in FIG. 2; in FIG. 4 - quick coupling. The rotary kiln has a lining 1, in which any refractory material, such as a refractory brick, can be used, and an outer wall or casing 2, which is made of metal. The diameter of the furnace can be, for example, from 10 to 20 feet, and the rotational speed can be up to 1/2 rpm. A large number of through holes 3 are made in the casing wall. Each hole 3 passes through the lining and through the outer one. casing The holes in the casing have a larger diameter. The holes 3 are made around the circumference of the casing with a gap between them and serve to install devices for supplying fluid to the furnace in them. In a typical furnace design of this designation, there may be 100 or more such openings. The fluid supply device comprises an elongated poland body, which includes an external hollow, mainly cylindrical tube 4, which is rigidly fixed with its inner end, say by welding, in the hole in the casing. The device housing includes a cylindrical inner sleeve 5, which telescopically enters inside the tube 14, the outer diameter of the sleeve 5 being somewhat smaller than the inner diameter of the tube 4. The sleeve 5 is removably connected to the tube 4 and extends radially outwardly relative to the furnace axis to a corresponding distance the design of the device coincides with the position of the shoulder 6 in the tube 4. The protruding radially inner end of the sleeve 5 terminates at a short distance from the inner surface of the lining 1 of the furnace. The device case also contains a second hollow cylindrical sleeve 7 extending radially inwardly (relative to the furnace axis), telescopically connected to the end of the first inner sleeve 5, and including a part of smaller diameter, and the outer diameter of this part is slightly less than the internal diameter of the first sleeve 5, which allows It is telescopically connected to the radially inward end of the first sleeve 5, which protrudes. The rest is thicker, and its outer diameter is slightly less than the internal diameter of the hole 4. The end of the sleeve 7 projects the inside of the furnace is a short distance, e.g. 6 inches, and is located below the ore to be processed when the apparatus rotates with the furnace and is below the ore bed. Inside the device, along a central longitudinal axis, there is a cylindrical tube 8 mounted concentrically and coaxially on the floor, in which cylindrical central oil is placed on tube 9. Oil on the tube can be made, for example, from carbon steel, tube 8 can be located eccentrically relative to the longitudinal device. The oil on the tube 9 is made along its entire length with a central channel 10, which may, for example, have a diameter of about 1/8 inch (3.175 mm). Typically, the tube 9 may have a channel with a diameter of 1/2 inch (12.7 mm). The filling of a small channel diameter causes oil or liquid fuel to exit the oil tube at a considerable speed and minimizes the possibility of oil delay in the tube 9 in the section located on the flush valve side in the direction of the device, after that, as the device has been discontinued, which substantially eliminates any pouring of oil from the tube 9 after the transfer of oil to the device has stopped and the device has moved out of the ore bed. The oil on the tube 9 ends radially inwardly with a part of a smaller diameter. The cylindrical tip 11 is placed in the protruding end of the SLEEVE 7 and has only a centrally located opening 12 through which the oil from the central oil pipe enters the furnace. The hole 12 in the direction of exit into the cavity of the furnace is narrowed, forming the outlet hole 13. The tip 11 serves to allow the ore to be requested into the chamber 14 formed by the tube 8 and the sleeves 5 and 7. The tip 11 is attached to the conical inner end of the tube .8, what it is made in the center with an internal thread, and the inner conical end of the tube 8 with an external thread. The end of the tube 8 passes through the hole 15, which is in the toroid tile 16 ,. which closes the end of the tube 4 projecting radially outwardly (relative to the furnace axis). Through the hole in the tile 16 and the flange 17, which is located on the radially outwardly protruding end of the body tube 4, bolts pass by which the end plate is attached to the tube 4. The tube 8 is provided with at the same time, an integer with it is an annular shoulder 18, which sits on the inner surface of the face plate 16, and serves as a part that ensures the installation of the tube 8 in the desired position. The outer surface of the part of the tube 8, which extends radically outward beyond the end plate 16, is provided with a thread on which the nut 19 is screwed against the outer surface of the end plate 16 and thereby keeps the rough 8 in the desired position relative to the end plate as well as relative to the rest of the construction devices. The central oil on the tube 9 extends radially outwards beyond the end plate 16, as well as beyond the end of the tube 8 protruding radially outward. The position of the thorium oil tube can be adjusted using reusable clamping means, which seizes the central oil from the outside. The tube and clamp which can be loosened, the ridges allow linear displacement of the oil tube. The clamping means together with the quick coupling 20 ensures the ease and speed of the operation to remove the central oil tube and install in its place a new tube during the rotation of the furnace .. The clamping means, called Swaglock Tub Fitting, is well known in the art and is not described here. It should be noted that suitable means is pressed onto the radially outwardly protruding end of the tube and pressed by the nut 21, which forms part of the clamping means, and is screwed onto the radially outwardly protruding end of the tube 8. The surface of the nut 21 serves as a support for the annular part 22 with an external thread on which A threaded nut 23 is screwed in, containing a conical packing A plastic plastic ring, for example, Teflon (not shown), which is coaxially around the outer surface of the central oil pipe. ki When the nut 23 rotates in one direction, it tightly presses the conical sealing ring to the outer surface of the oil tube without damaging this surface, with the result that the oil on the tube is held in a fixed position relative to the tube 8. When the nut 23 rotates in the opposite direction, the conical sealing ring with the outer surface of the oil tube weakens and the latter gets the opportunity to move relative to the tube 8. The distance of the end of the central oil tube relative to Accelerator 11 can be adjusted and positioned at a point where the ambient temperature is lower than that in tip 11, in order to minimize the undesirable effect of carbon through the oil pipe, and to determine the optimal end position, which prevents overheating and undesirable deposition carbon, the central oil tube 9 can be held in this position by tightening the clamping means, as mentioned above. In this optimal end position, the outlet end of the tube 9 will remain open, i.e. unobstructed by minimizing the possibility of overheating of the end face and the associated deposition of carbon. The housing 4 is provided with an inlet port 24, which can be connected to a source of gaseous medium, for example, air extraction of methane gas, depending on. the area of the working rotation of the furnace in which the device is currently located. The tip of the sleeve 7 projecting radially inside the furnace is provided with an outlet window 25, which is made in the wall of the said end of the sleeve and through which the gaseous medium entering the device through the window 24 goes into the furnace. When moving from the inlet to the top of the gas atmosphere passes through the chamber 14. The protective partition 26 is located at the exhaust gas window 25 and serves to prevent the spillage of ore particles through. cutting a window 25 into the hearth and fluid apparatus into a rotary kiln. An important characteristic is that the device is easy and simple to clean, as it allows the center tube to reciprocate beyond the tip 11, ensuring removal of carbon deposits or other substances from the hole in the tip 11, as well as from the cavity 27 near the tip 11. The quick-release connection 20 serves to detach the connection of the inlet end of the oil tube 9 with the oil supply source and comprises an inlet part 28 which is connected on the thread with a protruding radially The end of the oil tube 9. The end of the oil tube 29 is connected to the elbow 30, which in turn is connected to the flexible tubular hose 31 leading to the source of oil supply. The covering part 29 has an integral, spring loaded check valve (not shown), which closes to stop the supply of oil through the hose 31 when it comes in. item 28 has been removed from quick-fit female part 29. When the inlet part 28 is connected to the female 29, the check valve is set to the open position and the oil flows to the inlet end of the oil tube 9. The proposed device for supplying the fluid to the rotary kiln can be used with various combinations of fluids in the furnace reductions, such as natural gas, oil, and — t; e. . In the proposed device, the tip is flush with the inside surface of the furnace, the end of the sleeve 7 in this protrudes 2 inches from the furnace lining (Figures 2 and 3). The tip 11 is provided with a large number of arcuate gas channels 32, which are located in a centric rows with. between radially and with a gap between the channels and through which the gas passes into the furnace of chamber 14. It should be noted that during operation of the furnace, a portion of the device projecting radially inwards, if not cooled, may have a temperature, for example. Sort of 982 ° C. The cooling effect of gas, such as air at ambient temperature, passing through the chamber at some point during each cycle of rotation of the furnace, significantly lowers the temperature of the oil tube and tip and, although it does not completely eliminate the deposition of carbon or other substances in the oil Noah tube and tip, which is associated with the presence. Tesla, l nevertheless, it reduces this deposition to the reception of the normal level. If the holes 12 and 13 are damaged when cleaning, in this case the clamping device must be loosened in order to be able to move the linear oil tube 9 until its part of a smaller diameter passes through the holes 13. The linear movement of the oil tube provides also removing carbon deposits or other deposits from the cavity 27. If deposits of carbon or other substances in the channel are so compacted that the movement of the oil tube is not able to remove such deposits, then the oil tube In 9, a special tool can be removed and inserted into the tube 8, and the tube 8 has a special spreading tip or similar end that can be used to expand and clean the weights. After that, if there is a need for this, a new oil tube can be inserted, after which you can tighten the clamping device until it fits snugly against the outer surface of the oil tube. Formula of invention. LII 1. A fluid supply device for rotating tubular kiln treatment, containing a hollow body with gas inlet and outlet openings, mounted on the lined furnace casing and connected to its cavity, branch pipes with valves and clamping mechanisms, characterized in order to reduce carbon deposition, the casing is provided with a coaxially arranged tube connected to a tip having an opening in the cavity of the furnace, and inside it an optional sliding liquid tube is installed a second fuel, provided with a clamping mechanism. 2. The device according to claim 1, in connection with the fact that, for the purpose of radial gas supply to the furnace, the tip is made perforated and mounted flush with the lining. 3. The device according to clause I, is applicable so that the body is made of telescopically connected bushes. Sources of information taken into account in the examination 1. USSR author's certificate number 331091, cl. From 22 to 1/04, 1969.
    [2]
    2. US patent N 3847538, cl. 432-113,
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    同族专利:
    公开号 | 公开日
    US3946949A|1976-03-30|
    ES440646A1|1977-03-01|
    DE2539444C2|1985-10-10|
    NO752995L|1976-05-24|
    FR2283954B1|1980-03-28|
    DE2539444A1|1976-03-18|
    GB1501671A|1978-02-22|
    NO137952B|1978-02-13|
    FR2283954A1|1976-04-02|
    NL7510171A|1976-03-08|
    IN149711B|1982-03-20|
    JPS589354B2|1983-02-21|
    CA1049780A|1979-03-06|
    ZA755367B|1976-08-25|
    AU8420475A|1977-02-24|
    SE7509340L|1976-03-05|
    NO137952C|1978-05-24|
    IT1044444B|1980-03-20|
    BR7505606A|1976-08-03|
    SE415705B|1980-10-20|
    JPS5152303A|1976-05-08|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1844653A|1928-11-22|1932-02-09|Chemical Construction Corp|Spray burner|
    US2395483A|1941-01-29|1946-02-26|Ici Ltd|Burning of sulphur|
    US3062641A|1956-06-25|1962-11-06|Republic Steel Corp|Process for introduction of titanium tetrachloride|
    US3547624A|1966-12-16|1970-12-15|Air Reduction|Method of processing metal-bearing charge in a furnace having oxy-fuel burners in furnace tuyeres|
    DE1751427A1|1968-05-29|1971-07-01|Steinmueller Gmbh L & C|Burner for the optional combustion of liquid and / or gaseous fuels|
    US3784107A|1972-10-25|1974-01-08|Allis Chalmers|Nozzle for rotary kiln|US4208181A|1978-11-13|1980-06-17|Allis-Chalmers Corporation|Liquid metering and distribution arrangement for rotary reactor|
    US4209292A|1978-11-13|1980-06-24|Allis-Chalmers Corporation|Fluid storage and distribution arrangement mounted on rotary reactor|
    US4214707A|1979-07-23|1980-07-29|Allis-Chalmers Corporation|Trap-port for rotary kilns|
    US4373908A|1981-11-23|1983-02-15|Allis-Chalmers Corporation|Kiln shell nozzle with annular fluid delivery|
    US4373909A|1981-11-23|1983-02-15|Allis-Chalmers Corporation|Gas injecting kiln shell nozzle with particle entry barriers|
    JPS61178354U|1985-04-25|1986-11-07|
    FI78777C|1987-10-15|1989-09-11|Tampella Oy Ab|MUNSTYCKSANORDNING.|
    GB2236114A|1989-07-31|1991-03-27|Injectall Ltd|Gas injection|
    EP0801721B1|1995-01-05|1999-09-08|VSR Engineering GmbH Fördertechnik|Replaceable nozzle for high temperature reactors having a fire-resistant lining|
    AU753587B2|1997-11-14|2002-10-24|Johnson & Johnson Consumer Companies, Inc.|Highly flavored dental floss|
    US6221127B1|1999-11-10|2001-04-24|Svedala Industries, Inc.|Method of pyroprocessing mineral ore material for reducing combustion NOx|
    US6309211B1|2000-06-13|2001-10-30|Suedala Industries, Inc.|Port air conveying system for rotary kiln|
    US7316994B2|2002-11-01|2008-01-08|The Procter & Gamble Company|Perfume polymeric particles|
    US8236235B2|2007-04-27|2012-08-07|Martin Engineering Company|Removable nozzle for use with air cannons and aerators and method for replacing same|
    CN102235821B|2011-05-20|2013-05-08|中冶华天工程技术有限公司|Combined air supply nozzle, rotary kiln and preparation method of rotary kiln|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/503,135|US3946949A|1974-09-04|1974-09-04|Nozzle for rotary kiln|
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