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Oil smoke waste gas sample collecting and determining method and sample collecting device in nylon spinning

A collection device and oil fume technology, which is applied in the direction of measuring device, sampling device, color/spectral characteristic measurement, etc., can solve the problem that there are few analysis and researches on the exhaust gas of nylon spinning oil fume, and there is no determination method and emission standard of oil fume exhaust gas from nylon spinning. and other problems, to achieve the effect of simple and reliable sampling method, small deviation of analysis results, and accurate measurement

Inactive Publication Date: 2008-11-19
ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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AI Technical Summary

Problems solved by technology

[0003] There are few analyzes and researches on the fume exhaust gas from nylon spinning. At present, the national environmental protection department does not have a measurement method and emission standard for the fume exhaust gas from nylon spinning.

Method used

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  • Oil smoke waste gas sample collecting and determining method and sample collecting device in nylon spinning
  • Oil smoke waste gas sample collecting and determining method and sample collecting device in nylon spinning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1, the collection and determination method of nylon spinning oil fume waste gas sample, make the oil fume waste gas to be measured pass through the ceramic (Φ3mm) packing layer in the waste gas sample collection device at a uniform speed from bottom to top, and simultaneously make carbon tetrachloride from top to bottom The exhaust gas is absorbed through the packing layer at a uniform speed, the flow rate of oily fume exhaust is 5L / min, the absorption time is 10min, and the absorption liquid is fixed to a volume of 100ml. Gained absorbing solution takes carbon tetrachloride as blank, and uses infrared spectrophotometer at 3400cm -1 -2400cm 1 Scan between them, measure the absorbance value, and compare the working curve to get the concentration of the oil fume exhaust gas to be tested.

[0023] The sample collection device includes a transparent glass tube 1 with built-in ceramic (Φ3mm) filler 2, and the aspect ratio of the glass tube is 20 / 1. A stainless s...

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Abstract

The method comprises: forcing the sample down-and-up through the filler layer of sample collection device while the absorption solvent up-and-down through the filler layer to absorb the off-gas; scanning with an IR spectrophotometer at 3400cm-1-2400cm-1 to determine its absorbance value; comparing with the work curve to obtain the target value. Besides, the collection device also comprises a liquid container and a vacuum pump. This invention is simple but reliable with small error.

Description

technical field [0001] The invention belongs to the technical field of exhaust gas analysis, and in particular relates to a sample collection and measurement method for nylon spinning fume exhaust gas and a sample collection device. Background technique [0002] Nylon spinning oil is imported from abroad. It is a compound of various organic compounds and surfactants, and its composition is very complicated. Nylon spinning fume exhaust gas is produced by the natural volatilization of nylon spinning oil under high temperature conditions (about 205°C), and has a disgusting unpleasant smell. Its hazards to human health still need further research. A large amount of blue-gray nylon spinning oil fume waste gas seriously pollutes the surrounding environment of the spinning workshop, and it is very difficult to treat it. The purification of soot and exhaust gas has always been a difficult problem for the environmental protection department. [0003] There are few analyzes and rese...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/35G01N1/22G01N21/3504
Inventor 程海军方少明张宏忠叶长明
Owner ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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