Dust resuspension device and application method thereof
A technology for resuspension and dust delivery, which is used in measurement devices, sampling devices, particle size analysis, etc., and can solve problems such as poor portability, inability to collect, and difficulty in ensuring that the composition of particulate matter does not change.
Inactive Publication Date: 2015-07-08
ZHENGZHOU UNIV
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Problems solved by technology
[0004] At present, the existing resuspension device needs to collect the particulate matter and carry out pretreatment (mainly including: drying, screening, etc.) before resuspension. Complicated, it is difficult to ensure that the particle composition does not change, it is impossible to collect particles of different particle sizes under different wind speeds, and it is impossible to collect particles of different particle sizes under different soil viscosities
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[0035] Hereinafter, the invention will now be described more fully with reference to the accompanying drawings, in which various embodiments are shown. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
[0036] Hereinafter, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings.
[0037] Such as Figure 1-4 As shown, the device includes: dust collection system, resuspension box, air supply system, particle collection system, control room, etc.; In the system, the frequency conversion fan is connected to the uniform air distribution pipe in the resuspension box through pipelines; the bottom of the resuspension box has an air outlet pipe, and the air o...
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The invention relates to a dust resuspension device and an application method thereof. The device comprises a dust collection system, a resuspension box, an air supply system, a particulate matter collection system, a control cabinet, and so on; the dust collection system comprises a dust conveying pump, a motor, a fan, and so on; the air supply system comprises a variable-frequency blower, an even air distribution pipe, an air filtering membrane, and so on; the particulate matter collection system comprises a six-way valve, a sampler, a pump, a flow meter, and so on; the dust collection system and the air supply system are connected with top via holes and an internal even air distribution pipe of the resuspension box through pipelines, respectively; the bottom of the resuspension box comprises an air outlet pipe connected with the particulate matter collection system; and the control cabinet is connected with and controls the fan and the dust conveying pump in the dust collection system, an air velocity transducer in the resuspension box and the variable-frequency blower in the air supply system. The device provided by the invention is portable, is suitable for field direct sampling, and can collect particulate matter with different particle sizes under the conditions of different air velocity and different soil viscosity on site. The dust resuspension device is simple to operate and has powerful functions.
Description
technical field [0001] The present invention relates to dust resuspension devices and methods of use thereof. Background technique [0002] The composition of particulate matter in the atmospheric environment is complex and comes from many sources. Studies in recent years have shown that dust is one of the three major sources of air pollution and haze. Therefore, understanding the physical and chemical properties of dust is not only of great significance for the study of atmospheric particles, but also provides a basis for the formulation of prevention and control strategies for atmospheric particle pollution. necessary theoretical basis. [0003] Flying dust pollution sources are unorganized emission sources, and the particularity of the emission rules of this type of emission sources increases the difficulty of field collection and analysis. In this regard, scholars at home and abroad have found an alternative method: first collect dust samples on the spot, then use a re...
Claims
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IPC IPC(8): G01N15/02G01N1/14
Inventor 姜楠张瑞芹李胜利徐媛倩
Owner ZHENGZHOU UNIV