Cotton fiber filter disc for flue gas detection and preparation method thereof, and flue gas detection method

A flue gas detection and cotton fiber technology, applied in the field of detection and analysis, can solve the problems of interfering with the gas phase composition of flue gas components, difficult handling of fiber filters, and influence on the accurate quantification of flue gas components, so as to reduce errors, simple method and low cost cheap effect

Pending Publication Date: 2022-06-28
HUBEI CHINA TOBACCO IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the added latex, reinforcing additives, defoamers, dispersants and other components may produce gas phase components that interfere with smoke components under heated conditions, thereby affecti

Method used

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  • Cotton fiber filter disc for flue gas detection and preparation method thereof, and flue gas detection method
  • Cotton fiber filter disc for flue gas detection and preparation method thereof, and flue gas detection method
  • Cotton fiber filter disc for flue gas detection and preparation method thereof, and flue gas detection method

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preparation example Construction

[0035] The invention provides a preparation method of a cotton fiber filter for smoke detection, comprising the following steps:

[0036] a) shearing natural cotton fibers to obtain broken fibers; after that, put them into a pulverizer and pulverize to obtain fine fibers;

[0037] b) dissolving the fine fibers to obtain fluffy fine fibers;

[0038] c1) get the fluffy fine fibers and make a round cake, and press by a tablet press to obtain a single-layer cotton fiber filter 1;

[0039] c2) In addition, get fluffy fine fibers to make a round cake, and press by a tablet press to obtain a single-layer cotton fiber filter 2;

[0040] c3) In addition, get fluffy fine fibers and make a round cake, and press by a tablet press to obtain a single-layer cotton fiber filter 3;

[0041] d) stacking the single-layer cotton fiber filter 1, single-layer cotton fiber filter 2 and single-layer cotton fiber filter 3, and pressing together by a tablet press to obtain a three-layer composite cot...

Embodiment 1

[0071] S1. Cut natural cotton fibers to shredded fibers with a length of 2 cm.

[0072] S2. Put the above-mentioned crushed fibers into a high-speed multifunctional pulverizer in several times, and pulverize them to fine fibers with a length of about 2 mm.

[0073] S3. Put the above-mentioned fine fibers into the SE003 standard fiber disintegrating machine, and disintegrate at 6000 rpm for 10 minutes to obtain fluffy fine fibers.

[0074] S4, take 35 mg of fluffy fine fibers, make into a round cake shape with uniform thickness, press through a tablet machine, and keep it under a pressure of 2 MPa for 10 s to obtain a single-layer cotton fiber filter 1 .

[0075] S5, take 35 mg of fluffy fine fibers, make into a round cake with uniform thickness, press through a tablet machine, and keep the pressure under 3MPa for 10s to obtain a single-layer cotton fiber filter 2.

[0076] S6, take 55 mg of fluffy fine fibers, make into a round cake with uniform thickness, press through a tab...

Embodiment 2

[0097] Example 2: Detection

[0098] 1. GC-FID quantitative analysis:

[0099] Put the filter into the filter holder, put it into a cigarette smoking device, and conduct a cigarette smoking experiment at a heating temperature of 250°C. After that, the flue gas components captured by the filter were extracted with the isopropanol solution of the internal standard (naphthalene), and the supernatant liquid was taken after 60 min of shaking extraction, filtered with a 0.45 μm organic filter membrane, and quantitatively analyzed by GC-FID.

[0100] The chromatographic setting conditions were as follows: DB-FFAP capillary column (30m×0.53mm×0.25mm), column temperature 80°C, hold for 1min, heat up to 220°C at a rate of 10°C / min, hold for 9min. The inlet temperature is 220°C, the split ratio is 2:1, and the carrier gas is H 2 , the column flow rate is 8 mL / min; the injection volume is 1 μL; the temperature of the FID detector: 260 °C.

[0101] See the results figure 1 , figure 1 ...

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Abstract

The invention provides a cotton fiber filter disc for smoke detection, a preparation method thereof and a smoke detection method. The preparation method provided by the invention comprises the following steps: a) shearing natural cotton fibers to obtain broken fibers; then putting the mixture into a crusher for crushing to obtain fine fibers; b) defibering the fine fibers to obtain fluffy fine fibers; c1) taking fluffy fine fibers, making the fluffy fine fibers into round cakes, and pressing the round cakes through a tablet press to obtain a single-layer cotton fiber filter disc 1; c2) preparing fluffy fine fibers into a round cake shape, and pressing the round cake shape through a tablet press to obtain a single-layer cotton fiber filter disc 2; c3) preparing fluffy fine fibers into a round cake shape, and pressing the round cake shape through a tablet press to obtain a single-layer cotton fiber filter disc 3; and d) stacking the single-layer cotton fiber filter disc 1, the single-layer cotton fiber filter disc 2 and the single-layer cotton fiber filter disc 3, and pressing through a tablet press to obtain the three-layer composite cotton fiber filter disc. The filter disc prepared by the invention has high trapping efficiency on an object to be detected and can ensure the detection and analysis accuracy.

Description

technical field [0001] The invention relates to the field of detection and analysis, in particular to a cotton fiber filter for smoke detection, a preparation method thereof, and a smoke detection method. Background technique [0002] Smoking can not only cause a variety of diseases such as chronic lung disease, lung cancer, etc., but also be associated with a variety of diseases such as cardiovascular disease, stroke, and chronic bronchitis. Cigarette smoke is a complex mixture of more than 6,000 chemicals, usually divided into mainstream smoke (MSS) and sidestream smoke (SSS). Mainstream smoke can be directly inhaled by the user. Mainstream smoke contains a large number of strong carcinogens such as carbon monoxide (CO), polycyclic aromatic hydrocarbons, nitrosamines, volatile carbonyl compounds and volatile phenols, which cause great harm to human health. Therefore, capturing as many smoke components as possible and establishing an efficient analysis method for the comp...

Claims

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Application Information

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IPC IPC(8): B32B9/02B32B9/04B32B37/10G01N30/02G01N30/14G01N30/68
CPCB32B5/02B32B5/26B32B37/10G01N30/02G01N30/14G01N30/68B32B2262/062
Inventor 宋旭艳魏敏李俊升潘曦崔新姣何昀潞杜小弟
Owner HUBEI CHINA TOBACCO IND
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