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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Editor A.Dolinich
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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.
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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:
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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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