A comprehensive detection device for dust concentration and adhesion force and its detection method
A technology for comprehensive detection and dust concentration. It is used in measurement devices, suspension and porous material analysis, instruments, etc. It can solve the problems of single function of dust detectors and cannot quickly measure dust adhesion, and achieve simple structure and convenient operation. , the effect of improving work efficiency
Active Publication Date: 2018-04-17
CHINA UNIV OF MINING & TECH
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Problems solved by technology
Therefore, dust concentration and adhesion are important factors affecting the operation of the filter dust removal system. In order to maintain the efficient operation of the dust removal system, a comprehensive detection device for dust concentration and adhesion is needed to detect the basic characteristics of dust at any time. The current application The function of the dust meter is relatively single, especially it cannot quickly measure the adhesion of dust
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Embodiment 1
[0023] A comprehensive detection method for dust concentration and adhesion using specific data, which includes the following steps:
[0024] A. Open the valves K1, K3 and K6, close the valves K2, K4 and K5, start and adjust the frequency conversion air pump 7 so that the flowmeter 6 reaches the set filter air volume q1=0.02m 3 / s, wait for the predetermined time t1=120s, close the variable frequency air pump 7, start the dust particle detector 4 to detect the dust mass m1=100mg collected by the filter membrane 3, calculate the respirable dust concentration c1 by the following formula:
[0025] c1=m1 / (q1×t1)
[0026] =100 / (0.02×120)
[0027] =41.67(mg / m 3 )
[0028] B. After cleaning the filter membrane 3, open the valves K2, K3 and K6, close the valves K1, K4 and K5, start and adjust the frequency conversion air pump 7 so that the flowmeter 6 reaches the set filter air volume q2=0.02m 3 / s, wait for the predetermined time t2=120s, close the frequency conversion air pump 7...
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The invention discloses a dust concentration and adhesion comprehensive detection device and a detection method thereof. The dust concentration and adhesion comprehensive detection device includes a respirable dust sampling head, a full dust sampling head, a filter membrane, and a dust particle detector , differential pressure meter, flow meter and frequency conversion air pump; the respirable dust sampling head and the full dust sampling head are connected to the filter membrane in parallel, and the filter membrane is connected to the flow meter and the frequency conversion air pump in turn; the high and low pressure ports of the differential pressure gauge are respectively connected to the reverse of the filter membrane. On the dust side and on the dust side, the filter membrane is arranged inside the dust particle detector. The dust mass on the filter membrane is collected and tested in different channels, and the total dust concentration and respirable dust concentration of the dust can be calculated; the pressure difference on both sides of the filter membrane under different air volume conditions can be recorded through the backflush test, and the dust and dust can be calculated. Adhesion between filters. It is portable and easy to use, and can comprehensively measure various parameters of dust, especially suitable for matching with filter dust removal system, providing basic parameters for the adjustment of dust removal conditions.
Description
technical field [0001] The invention relates to a comprehensive detection device for dust concentration and adhesion force and a detection method thereof, belonging to the technical field of dust detection equipment. Background technique [0002] In the dust removal measures, the basic characteristics of the dust determine the design of the dust removal system and the selection of dust removal equipment. Real-time detection of the basic characteristics of the dust and the corresponding adjustment of the operating parameters of the dust removal system can make the dust removal system operate efficiently and maximize the dust removal effect. . As the production process and production intensity change, the dust concentration changes, and the operating parameters of the dust removal system need to be adjusted accordingly. Changes in external environmental conditions, especially changes in relative humidity, lead to changes in dust cohesion. The increase of dust adhesion will m...
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IPC IPC(8): G01N15/06G01N15/00
Inventor 周福宝李建龙李世航刘应科张继健
Owner CHINA UNIV OF MINING & TECH
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