• 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 mass stream of a dusty solid fuel is conveyed pneumatically through a supply pipe leading from a dosing container to a gasification reactor. A gas admixing device is connected in series with the supply pipe near the outlet of the container for injecting an auxiliary gas into the mass stream. The parameters of the mass stream are measured before and after the mixing device and applied to a computer which determines the amount of the injected gas and the value of the mass stream. In this manner, the arrangement for measuring the gas stream can operate continuously and independently from the technology of feeding the dust to the supply pipe and provides quantitatively correct measuring values at all dust concentrations and system pressures. The method eliminates complicated velocity measurements in two-phase dust streams and does not necessitate any measuring probes which project into the conveying channel and obstruct the flow.
    公开号:SU1702183A1
    申请号:SU827772423
    申请日:1982-05-06
    公开日:1991-12-30
    发明作者:Кретшмер Хорст；Бейерман Норберт；Титце Гюнтер；Шингнитц Манфред；Гелер Петер
    申请人:Бренстоффинститут Фрейберг；
    IPC主号:
    专利说明:


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    Compiled by N. Burbelo Tehred M. Morgenthal
    Corrector S.Cherni
    权利要求:
    Claims (3)
    [1]
    Claim
    1. A method of measuring the mass flow rate of bulk material transported by a gaseous medium stream, comprising measuring flow parameters and calculating a flow rate, characterized in that, in order to expand the measurement range towards high concentrations of bulk material, the flow is uniformly introduced into the mixture stream behind the metering tank injected gas and measure the density, pressure and temperature before and after the injection site of the injected gas.
    [2]
    2. The method of pop. 1. characterized in that the injected gas is introduced through the porous wall of the channel, which is a continuation of the pipeline and having the same cross section as the pipeline.
    [3]
    3. The method according to PP. 1 and 2, characterized in that when the injected gas stream is introduced, its flow rate is controlled, maintaining the difference in density of the mixture obtained before and after the injection of injected gas at least 100 kg / m 3 , and the ratio of the density of the mixture after the gas and bulk material is 6:10 a.m.
    £ t
    类似技术:
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    GB1333738A|1973-10-17|Fluid bed polymerisation catalyst injection apparatus and process
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    JPS5781026A|1982-05-20|Device for measuring flow rate of powdery or granular material in conveyor for said material
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    同族专利:
    公开号 | 公开日
    YU43270B|1989-06-30|
    CS245031B1|1986-08-14|
    DE3212972C2|1988-12-22|
    GB2103371B|1985-06-12|
    GB2103371A|1983-02-16|
    HU189585B|1986-07-28|
    FR2509854A1|1983-01-21|
    ATA140882A|1989-08-15|
    YU132082A|1984-12-31|
    JPS5824820A|1983-02-14|
    US4501156A|1985-02-26|
    AT390143B|1990-03-26|
    DE3212972A1|1983-02-03|
    DD209089A3|1984-04-18|
    FR2509854B1|1985-12-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE202005021660U1|2005-10-04|2009-03-05|Siemens Aktiengesellschaft|Apparatus for the controlled supply of combustible dust in an air flow gasifier|DE2554565A1|1975-12-04|1977-06-16|Otto & Co Gmbh Dr C|PLANT FOR THE PRESSURE GASIFICATION OF FINE-GRAIN FUELS|
    DE2642537C2|1976-09-22|1986-11-27|Krupp Koppers GmbH, 4300 Essen|Process for determining and controlling the fuel flow fed to the gasifier during the partial oxidation of fine-grained to dusty fuels|
    FR2386021A1|1977-03-31|1978-10-27|Flopetrol Ste Auxil Product Pe|METHOD AND DEVICE FOR DETERMINING THE VOLUMETRIC FLOW OF EACH PHASE OF A DIPHASIC MIXTURE|
    DE2757032C2|1977-12-21|1988-01-21|Krupp Koppers Gmbh, 4300 Essen, De|
    DD142606A1|1978-06-19|1980-07-02|Alfred Hoffmann|METHOD AND MEASURING PROBE FOR PARTICLE SPEED, PARTICLE SIZE AND PARTICLE CONCENTRATION DISTRIBUTIONS|
    DD145958B1|1978-09-28|1983-03-30|Horst Kretschmer|METHOD AND MEASURING CELL FOR THE CONSIDERATION OF DUST TRAEGERGAS FLUIDS|
    DE2902911A1|1979-01-26|1980-07-31|Krupp Gmbh|METHOD AND DEVICE FOR THE PNEUMATICALLY CONTROLLED FEEDING OF A REACTOR DEPENDING ON THE EXHAUSTED PRODUCT QUANTITY|
    DE2925510A1|1979-06-25|1981-01-15|Schenck Ag Carl|Pneumatic bulk delivery system feed force measurement - using uncoated gas throughput and loaded gas pressure drop measurements with results stored in computer to regulate gas throughput|DE3316368C2|1983-01-21|1993-05-13|Krupp Koppers Gmbh, 4300 Essen, De|
    US4726235A|1986-03-12|1988-02-23|Available Energy, Inc.|Ultrasonic instrument to measure the gas velocity and/or the solids loading in a flowing gas stream|
    US4882934A|1986-03-12|1989-11-28|Charles B. Leffert|Ultrasonic instrument to measure the gas velocity and/or the solids loading in a flowing gas stream|
    GB8607763D0|1986-03-27|1986-04-30|Spirax Sarco Ltd|Rotation sensor|
    JP2728847B2|1993-07-23|1998-03-18|日本パーカライジング株式会社|Powder flow rate measuring method and apparatus|
    US5576495A|1995-10-23|1996-11-19|The Babcock & Wilcox Company|Two phase flow meter|
    US5684245A|1995-11-17|1997-11-04|Mks Instruments, Inc.|Apparatus for mass flow measurement of a gas|
    DE19619632A1|1996-05-15|1997-11-20|S K I Schlegel & Kremer Indust|Measuring density of flowing fluid using at least two measuring points|
    DK174312B1|1996-06-06|2002-12-02|Ole Pedersen|Method for measuring flow rate and diffusivity, microsensor for use in the method and use of such microsensor|
    DE19651252A1|1996-12-10|1998-06-18|Hamilton Bonaduz Ag|Method and device for determining the volume of a gas and / or the volume of a sample of solid and / or liquid material|
    DE19729144C2|1997-07-08|2001-02-22|Foedisch Umweltmestechnik Gmbh|Process and device system for the continuous determination of the dust concentration in flowing gases|
    DE10132755B4|2001-07-10|2005-07-14|Robert Bosch Gmbh|Method and arrangement for determining the accumulation of condensate in a chimney|
    NO322167B1|2003-11-05|2006-08-21|Abb As|Method and apparatus for detecting water breakthroughs in well production of oil and gas, as well as using the method in an oil and gas production process|
    DE102006050656A1|2006-10-24|2008-04-30|Endress & Hauser Meßtechnik GmbH & Co. KG|Flow measuring system for determining flow of solid-loaded fluid in pipeline, has radiometric density-measuring points attached to pipeline for determining densities of fluid, and inlet device for another fluid|
    US7524146B2|2006-11-30|2009-04-28|William Jeffrey Peet|Pneumatic uneven flow factoring for particulate matter distribution system|
    DE102011077911A1|2011-06-21|2012-12-27|Siemens Ag|Consistent feed of dusts with controllable restriction in the dust delivery line|
    DE102011077910A1|2011-06-21|2012-12-27|Siemens Ag|Consistent feed of dusts with fixed throttle in the dust conveyor line|
    CZ2013238A3|2013-03-28|2014-05-28|Jiří Surý|Lump fuel feeder, especially pellet feeder for high-pressure gasification apparatus|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DD81231890A|DD209089A3|1981-07-17|1981-07-17|MEASURING METHOD FOR THE DETERMINATION OF THE MASS FLOW OF DUST-SOUND AND FINE-COMBUSTIBLE FUELS|
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