• 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:
    1. INSTALLATION FOR OBTAINING GRANULATED FERTILIZER, including successively installed drum granulator and drum dryer, so that, in order to reduce energy consumption, the dryer is equipped with a tubular reactor .. 2 .. Installation. 1, characterized in that the tubular reactor is located near the entry of products into the dryer. . 3. Installation according to claim 1, wherein the drum granulator is equipped with a tubular reactor. JV s; R 4
    公开号:SU1190974A3
    申请号:SU813276209
    申请日:1981-05-04
    公开日:1985-11-07
    发明作者:Морейон Филипп
    申请人:Женераль Дэз Ангрэ С.А. (Фирма)；
    IPC主号:
    专利说明:

    one
    - The invention relates to installations for the production of granular fertilizers containing ammonium phosphate.
    The purpose of the invention is to reduce energy consumption.
    The drawing shows an installation diagram for producing granular fertilizer.
    The installation includes sequentially installed drum granulator 1 and drum dryer 2, screen 3, where the product coming out of dryer 2 and which sows it in three fractions enters. The product being too large is crushed and returned to the inlet 4 of the granules torus 1. A tubular reactor 5 is connected to the drum dryer 2 for neutralization, which is included in the dryer. A second tubular reactor (not shown) can be connected to granulator 1.
    The reactor 5 is equipped with a pipe 6 for introducing phosphoric acid, through pipe 7 ammonia is fed, which enters the distributor 8 installed in granulator 1, and into the pipe reactor 6. Granulator 1 is equipped with pipe 9 for introducing an aqueous solution (e.g. or urea) connected to the sprayer 10-.
    The installation works as follows.
    A solid raw material is fed through pipe 11 and is fed through inlet 4 into Granulator 1. Ammonia is introduced through distributor 8, and an aqueous solution is fed through the atomizer Yu. The granules formed from granulator 1 enter the dryer 2. Ammonia is introduced into the tubular reactor 5 from pipe 7, phosphoric acid is fed through the pipe, and if necessary, nitric acid is fed through pipe 12. Air into the dryer 2 through pipe 13 can be heated heater 14. The gases are removed from dryer 2 through pipe 15 and from granulator 1 through pipe 16.
    The invention permits the installation of several tubular reactors one after the other. It is also possible to provide the tubular reactor with several outlet pipes. Hot prefer to install tubular
    909742
    the reactor. on the inlet of the dryer, it is also possible to install it at the other end, near the outlet of the dryer, feeding the reaction products to the beginning of the 5th dryer. .
    The ammonia that is introduced into the tubular reactor is typically anhydrous ammonia, in a double or gaseous state. But it can
    There must also be an aqueous solution of ammonia, in which there is ammonium nitrate or urea.
    The acidic solution introduced into the tubular reactor is usually an extraction phosphoric acid with a concentration of 30 to 54% or an acidic pulp, with one (including phosphoric acid. You can also enter sulfuric acid and nitric acid simultaneously.
    The reaction between acids and ammonia is accompanied by a strong heat release, which causes boiling of the liquid. In this way, at the exit from the tubular reactor, a powerful jet of water vapor and pulp of ammonium salts penetrating into the dryer are obtained. The pulp is fed in a loose form against a hail of solid, respiratory particles falling from the blades, and against a product that rolls along the bottom of the dryer. Most of the pulp adheres to the surface of the particles coming from the granulator,
    5, uniform particles of medium caliber are slightly larger than at the exit from the granulator. However, when using phosphoric acid with a sufficient concentration,
    For example, about 49% Pj Oy, a portion of the pulp droplets introduced into the dryer elude the table with the solid product while they are still in a liquid state.
    5 These droplets harden when flying, forming small balls with a diameter of 0.1 - 0.5 mm. They enter dry recycled product in the granulator, regardless of
    0 were they involved in the air flow and collected at the base of the cyclones, or separated from the finished products by screening.
    For pulp hardening like this
    5 way in small balls without
    bonding with particles coming from the granulator concentration varies depending on the design
    权利要求:
    Claims (3)
    [1]
    one . INSTALLATION FOR PREPARING A GRANULATED FERTILIZER, including successively installed drum granulator and drum dryer, which is, in order to reduce energy costs, the dryer is equipped with a tubular reactor. .
    [2]
    2 .. Installation by 1, characterized in that the tubular "reactor is located near the input products in the dryer. ·. '
    [3]
    3. Installation according to claim 1, which is based on the fact that the drum granulator is equipped with a tubular reactor.
    year
    cl
    with
    five
    1 1190974
    2
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1047387A3|1983-10-07|Process for producing ammonium orthophosphate
    SU1190974A3|1985-11-07|Arrangement for producing granulated fertilizer
    US3475132A|1969-10-28|Fluidized bed for the granulation of fertilizers
    US3950493A|1976-04-13|Process for absorbing SO3
    US3419378A|1968-12-31|Method of producing monoammonium phosphate by reacting phosphoric acid and ammonia under pressure
    US3730700A|1973-05-01|Process for the production of ammonium phosphate fertilizers
    US4619684A|1986-10-28|Pressure reactor for producing diammonium phosphate
    US3502441A|1970-03-24|Apparatus for neutralizing acids with ammonia
    US3276510A|1966-10-04|Concentration op phosphoric acid
    US3301657A|1967-01-31|Fertilizer process comprising two-stage ammoniation with counter current gas treatment
    US4308049A|1981-12-29|Process for the absorption of ammonia in acid solutions or slurries
    US2981592A|1961-04-25|Method and apparatus for calcining salt solutions
    CN101148424A|2008-03-26|Continuous and clean producing method for iminodiacetonitrile by using combined reactor
    US3459530A|1969-08-05|Production of granular magnesium ammonium phosphate
    DE3539631C2|1997-07-31|Process for the preparation of oligomethylene urea mixtures
    EP0016591B1|1984-01-25|Treatment of effluent gases from the manufacture of fertilizer and products obtained thereby
    US3157466A|1964-11-17|Process for producing ammonium nitrate
    Meline et al.1968|Plant-scale production of fertilizers in a pan granulator
    US3197280A|1965-07-27|Production of phosphoric acid
    CN102583441B|2013-07-24|Method for producing ammonium nitrate solid
    GB1209159A|1970-10-21|Improvements in or relating to methods and apparatus for the production of sulfates
    CN210973890U|2020-07-10|Diammonium production system with high ammonia utilization rate and low ammonia discharge
    CN215233991U|2021-12-21|Ammonium phosphate prilling granulator that no white smoke produced
    CN214095691U|2021-08-31|Ammonium nitrate apparatus for producing technology steam waste heat recovery utilizes system
    CN1048841A|1991-01-30|A kind of method of producing ammonium sulfate and utilizing ammonium sulfate production compound fertilizer
    同族专利:
    公开号 | 公开日
    EP0040122A1|1981-11-18|
    JPH0253394B2|1990-11-16|
    ZA812930B|1982-04-28|
    YU44971B|1991-06-30|
    FI71720C|1987-02-09|
    AU7010881A|1981-11-12|
    IL62780D0|1981-07-31|
    FI71720B|1986-10-31|
    YU112881A|1983-06-30|
    OA06805A|1982-12-31|
    MX156252A|1988-07-29|
    KR830006137A|1983-09-17|
    US4604126A|1986-08-05|
    NO155963B|1987-03-23|
    FR2481611A1|1981-11-06|
    ES501847A0|1982-03-01|
    PT72967B|1982-06-25|
    IN153702B|1984-08-11|
    JPS5724626A|1982-02-09|
    AT8984T|1984-09-15|
    NO811496L|1981-11-06|
    AU545241B2|1985-07-04|
    EP0040122B1|1984-08-15|
    CA1179163A|1984-12-11|
    UA7836A1|1995-12-26|
    ES8202692A1|1982-03-01|
    IL62780A|1984-09-30|
    KR840001422B1|1984-09-26|
    GR74848B|1984-07-12|
    PT72967A|1981-06-01|
    MA19133A1|1981-12-31|
    BR8102715A|1982-01-26|
    FR2481611B1|1984-09-07|
    PH18941A|1985-11-14|
    FI811360L|1981-11-06|
    YU29483A|1984-04-30|
    DE3165513D1|1984-09-20|
    NO155963C|1991-05-22|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2047393A|1932-03-28|1936-07-14|Swift And Company Fertilizer W|Fertilizer preparation|
    FR1100817A|1953-11-12|1955-09-26|Siape|Process for manufacturing phosphate fertilizers in the form of granules or powder|
    DE1051871B|1954-04-30|1959-03-05|Dorr Oliver Inc|Continuous process for the production of high-quality, free-flowing, granulated diammonium phosphate fertilizers|
    US3037855A|1958-05-23|1962-06-05|Allied Chem|Process for pebbling by spraying a mixture of ammonium nitrate and ammonium phosphates|
    US3241946A|1962-03-30|1966-03-22|Union Oil Co|Ammonium phosphate fertilizer solids derived from anhydrous liquid phosphoric acid|
    US3310371A|1962-10-30|1967-03-21|Dorr Oliver Inc|Production of ammonium phosphate|
    FR1389361A|1963-04-18|1965-02-12|Ici Ltd|Mixed fertilizer improvements|
    BE659404A|1964-02-12|1965-05-28|
    FR1573849A|1967-10-31|1969-07-11|
    US3738821A|1972-05-18|1973-06-12|Reserve Oil & Gas Co|Process of agglomerating ammonium sulfate and making complete fertilizer|
    US3954942A|1974-09-16|1976-05-04|Tennessee Valley Authority|Granular ammonium phosphate sulfate and monoammonium phosphate using common pipe-cross-type reactor|
    SU676584A1|1975-12-26|1979-07-30|Предприятие П/Я Р-6603|Method of granulating nitroammophoska|
    UST969002I4|1977-07-25|1978-04-04|Tennessee Valley Authority|Granular ammonium phosphate sulfate and urea-ammonium phosphate sulfate using a common pipe-cross reactor|
    FR2437386A1|1978-09-28|1980-04-25|Jacobs Engineering Group Inc|Dry, granular di:ammonium phosphate prodn. - from phosphoric acid and ammonia, by reacting in tube reactor and granulator, with added energy needed for drying|
    NL173387C|1979-03-15|1984-01-16|Azote Sa Cie Neerlandaise|METHOD FOR MAKING STABLE AMMONIUM NITRATE CONTAINING FERTILIZER GRAINS.|FI70202C|1984-06-20|1986-09-15|Kemira Oy|SAETT ATT AOTERVINNA NAERINGSMEDEL FRAON AVGASERNA AV EN NP-KONSTGOEDSELFABRIK|
    US5211735A|1987-04-24|1993-05-18|Petroleo Brasileiro S. A.|Process for preparing phosphated or nitrophosphated fertilizers through solubilization of phosphate rock|
    US5435822A|1989-11-08|1995-07-25|W. R. Grace & Co.-Conn.|Spray dried water dispersible fertilizer|
    CN1894172A|2003-12-18|2007-01-10|佐治亚-太平洋树脂公司|Extended-release nitrogen-containing granular fertilizer|
    NO325430B1|2006-04-10|2008-04-28|Yara Int Asa|Process for the production of nitrophosphate products with high nitrogen content, and products produced therefrom.|
    BRPI0809250A2|2007-03-19|2014-09-09|Easymining Sweden A|Phosphorus Recovery|
    US9464008B2|2012-02-01|2016-10-11|Honeywell International Inc.|Process for preparing ammonium sulfate nitrate|
    US9932278B2|2015-03-12|2018-04-03|Advansix Resins & Chemicals Llc|Granulator feed apparatus|
    FR3039830B1|2015-08-03|2018-09-07|Ocp Sa|PROCESS FOR PRODUCING AN AMMONIUM PHOSPHATE FERTILIZER WITH A REDUCED CADMIUM CONTENT|
    EP3192370B1|2016-01-15|2020-03-04|Rendapart|Environmentally friendly herbicidal formulations|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR8009952A|FR2481611B1|1980-05-05|1980-05-05|LTRP1131A| LT2630B|1980-05-05|1993-09-27|GRANULATED THREE PRODUCTION IN AUSTRIA|
    LV931201A| LV5697A3|1980-05-05|1993-11-11|Caught up in granulating meslotia|
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