• 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:

    公开号:SU1042604A3
    申请号:SU813259152
    申请日:1981-03-20
    公开日:1983-09-15
    发明作者:Лефгрен Ларс；Эстлунд Артур
    申请人:Стал-Лавал Аппарат Аб (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to fluid bed devices and can be used to carry out various physicochemical processes, for example, reduction of iron oxide. A fluid bed device is known that operates under pressure and includes a housing, a gas distribution grill and nozzles for feeding a fluidizing agent 1. A device for carrying out processes in a fluidized bed comprising a housing, a bottom in which nozzles with nozzles placed in the granule layer () embedded are fixed. material, and chambers for supplying a fluidizing agent installed below the bottom, in which the inlet ends of the nozzles with nozzles 2 are placed. A disadvantage of the known construction is that high temperature stresses arise inside the apparatus. The purpose of the invention is to reduce thermal stresses. The goal is achieved by the fact that in a device for carrying out processes in a fluidized bed, comprising a housing, a bottom in which nozzles with nozzles placed in a layer of granular material are fixed, and a chamber for supplying a fluidized pelvis, installed below the bottom, in which the inlet ends of nozzles with the nozzles, between the bottom and the chambers for supplying the fluidizing agent, accommodate a chamber for supplying a cooling gas with a cooling gas supply nozzle installed along the axis of the housing and a branch pipe fixed to the side surface these cameras. In addition, the cooling gas supply chamber is made in the shape of the bottom, and the output ends of the fluidizing gas supply pipes are flanged with hatch covers housed in the liquifying gas supply chambers. Figure 1 shows the bottom part of the device, a vertical section; figure 2 - node 1 in figure 1. The fluidized bed device comprises a housing 1, covered inside with insulating material 2, a bottom 3 in which nozzles are fixed
    with nozzles placed in the granular layer of the laminated material, chamber 5 for supplying a fluidizing agent, is covered
    spirit. ..
    Figure 1 shows six nozzles, but their number can vary over a wide range of thermal insulations. Between the chamber 5 and the bottom 3 is placed the chamber 6. Supply of cooling gas, is made in the form of the bottom and is equipped with a nozzle 7 for supplying a cooling gas installed along the axis of the housing, and a nozzle of the outlet 8 fixed on the side surface of the chamber. . The outlet ends of the nozzles are placed in the tube 9, to which the flanges 10 are welded, and provided with lids 11 with a seal 12 placed in the chambers 5 for supplying a fluidizing agent. The tube 9 from the inside is supplied with heat. insulation 13. The cooling air or cooler has an outlet 8 and, with a corresponding DESIGN solution, a natural circulation of cooling air can be obtained. However, the cooling air can also be supplied by means of a blower, a compressor, and the like to obtain a certain circulation pressure. The fluidized bed device operates as follows (Eazom. The fluidizing pelvis enters through the nozzle T4 into chambers 5, of which through the nozzles k and placed in the nozzle layer enters the housing 1 and fluidizes the material. The device can contain several distribution chambers 5. In the proposed device everything parts exposed to pressure can be effectively insulated from heat. Seals for nozzles should. For example, withstand only pressure due to a drop in pressure on the nozzles. the distribution chamber 5, the hatches 15, are suitably arranged, it is possible to replace the nozzles without the need to penetrate the layer. The cooling gas chamber 6 represents a dish-shaped protranost or slit, and its location, at least in a substantial part, is radial and parallel to it. parts of the bed unit. The fluidizing gas that is suitable is C02 or N, and the coolant is airborne and distributed along the bottom of the bed, the pseudo-fluidized material is powder,
    particles or granules and is maintained in a floating state by means of an injected fluidized gas.
    权利要求:
    Claims (3)
    [1]
    1. DEVICE FOR CARRYING OUT PROCESSES IN A PSEUDO-LIQUIDED LAYER, comprising a housing, a bottom, in which nozzles are fixed with nozzles placed in a layer of granular material, and fluidizing gas supply chambers installed below the bottoms, in which the inlet ends of nozzles with nozzles are located, characterized in that, in order to reduce temperature stresses, the device is equipped with a chamber for supplying a fluidizing gas arranged between the bottom and the chambers for supplying a fluidizing gas with a cooling gas supply pipe installed and Deck retraction, a side surface
    [2]
    2. A device for h apodpo along the axis of the housing, mounted on the chambers, p. 1, due to the fact that the chamber for water cooling gas is made in the form of a bottom.
    [3]
    3. The device according to claims 1 and 2, characterized in that the output ends of the fluidizing gas supply pipes are provided with flanges with manhole covers located in the chambers for supplying the waiting gas.
    with SS
    35 O 4 * *>
    1042604 2
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1042604A3|1983-09-15|Apparatus for processing in fluidized bed
    SU1621809A3|1991-01-15|Device for calcining gypsum
    JP3330173B2|2002-09-30|Method and apparatus for cooling high temperature solids
    RU2139471C1|1999-10-10|Waste-heat boiler
    GB2073041A|1981-10-14|Fluidised bed distributor plates
    US3858861A|1975-01-07|Underhearth cooling system
    US4267882A|1981-05-19|Heat exchanger for cooling a high pressure gas
    FR2344801A1|1977-10-14|Fluidised bed reaction furnace - has distribution tubes extending above fluidising agent distribution chamber cover, ensuring protection against heat
    RU2044976C1|1995-09-27|Heat exchanger
    JPS58202958A|1983-11-26|Continuous casting method of steel
    JPS62202019A|1987-09-05|Method and apparatus for hardening metallic material
    SU1374015A1|1988-02-15|Installation for thermal treatment of loose materials
    JPS59184095A|1984-10-19|Device for preventing freezing of tank in ice breaker
    SU1041844A1|1983-09-15|Device for cooling rotating furnace discharge end
    SU1083046A1|1984-03-30|Combined plant for loose material drying and cooling
    SU918739A1|1982-04-07|Heat-mass exchange apparatus
    SU1038765A1|1983-08-30|Heat exchanger for heating loose materials in fluidized bed
    SU1587083A1|1990-08-23|Apparatus for thermal treating of semiconductor wafers
    SU1049089A1|1983-10-23|Apparatus for cleaning gases
    JPS5695333A|1981-08-01|Nonaqueous solution adsorbent and method for separation of nonaqueous solution from water system by this
    JPH02215330A|1990-08-28|Container for transporting live fish
    JPS60206409A|1985-10-18|Separation of liquid
    RU2108524C1|1998-04-10|Liquid heater
    RU2002824C1|1993-11-15|Bowl-shaped cooler for lumpy iron-ore material
    RU2036403C1|1995-05-27|Sectionalized apparatus for heat treatment of granular materials
    同族专利:
    公开号 | 公开日
    EP0036564A1|1981-09-30|
    BR8101659A|1981-09-22|
    US4346054A|1982-08-24|
    SE438729B|1985-04-29|
    SE8002199L|1981-09-22|
    JPS56144737A|1981-11-11|
    DE3164067D1|1984-07-19|
    EP0036564B1|1984-06-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CA643905A|1962-07-03|J. Kennedy Douglas|Device for charging gas to fluidized bed|
    US1691609A|1924-10-22|1928-11-13|Oskrit Frank|Pipe and plate connection|
    BE639461A|1962-11-01|
    US3398718A|1965-03-10|1968-08-27|Atomic Energy Commission Usa|Fluidized-bed coating apparatus|
    DE2054641A1|1970-11-06|1972-05-18|Cass International Gmbh|Heat exchanger|
    GB1415659A|1972-03-02|1975-11-26|Plessey Co Ltd|Heat exchange apparatus with gas chamber below heat exchange bed|
    GB1589566A|1976-09-08|1981-05-13|British Petroleum Co|Nozzle arrangement suitable for a fluidised bed furnace|CH660561A5|1982-08-30|1987-05-15|Escher Wyss Gmbh|RING CLEANING NOZZLE AND THEIR USE IN A FLUID BED DRYER.|
    JPS59158904A|1983-03-01|1984-09-08|Kawasaki Heavy Ind Ltd|Fluidized-bed type combustion furnace|
    US5129630A|1990-06-16|1992-07-14|Nkk Corporation|Prereduction furnace of a smelting reduction facility of iron ore|
    US5143486A|1991-03-01|1992-09-01|Riley Stoker Corporation|Flow promoter for fluidized solids|
    US5879638A|1995-10-16|1999-03-09|Dorr-Oliver Incorporated|Fluidized bed reactor with gas distributor|
    ATA145198A|1998-08-26|2000-01-15|Voest Alpine Ind Anlagen|REACTOR VESSEL FOR TREATING A FLUIDISABLE MATERIAL|
    AT412954B|2003-04-09|2005-09-26|Zsifkovits Wilhelm|FLOORING FOR A SWIVEL LAYERED APPARATUS|
    US9327250B2|2014-05-07|2016-05-03|The Babcock & Wilcox Company|Fluidizing nozzle or bubble cap assembly for air distribution grid|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE8002199A|SE438729B|1980-03-21|1980-03-21|DEVICE AT THE BOTTOM OF A FLUIDIZABLE BED|
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