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Small cyclone dust collector

Country/Region china
Company Zhangjiagang Zhongyi Environmental Protection Technology Co. Ltd.
Categories Dust Collector Filter Bags
ICP License Issued by the Chinese Ministry
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    Small cyclone dust collector

    Small cyclone dust collector

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    • Category:Dust removal equipment

    • Clicks:18
    • Release date:2017/07/17
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    Small cyclone dust collector

    The cyclone dust collector is composed of an air inlet pipe, an exhaust pipe, cylinder, cone and ash composition. The cyclone dust collector has the advantages of simple structure, easy manufacture, installation and maintenance management, equipment investment and the operating cost is low, has been widely used for the separation of solid and liquid particles from the air, or the separation of solid particles from liquid. Under ordinary operating conditions, the centrifugal force acting on the particles is 5~2500 times of the gravity, so the efficiency of cyclone dust collector is significantly higher than that of gravity settling chamber. Based on this principle, a cyclone dust removal device with a dust removal efficiency of more than ninety percent has been successfully developed. In the mechanical dust collector, cyclone dust catcher is the most efficient one. It is suitable for the removal of non sticky and non fibrous dust, mostly used to remove particles more than 5 m, parallel multi cyclone dust collector, 3 m particles also have 80~85% dust removal efficiency. A cyclone dust collector with high temperature resistant, corrosion resistant and corrosion resistant special metal or ceramic material can be operated under the condition that the temperature is 1000 degrees centigrade and the pressure is 500 * 105Pa. Considering the technical and economic aspects, the pressure loss control range of cyclone dust collector is usually 500~2000Pa. Therefore, the utility model belongs to a middle efficiency dust collector, and can be used for purifying high-temperature flue gas. The utility model is a dust collector which is widely used, and is used for dust removal of a boiler, multi-stage dust removal and pre dusting. Its main drawback is that the removal efficiency of fine dust particles (<5 m) is low.

    The operation parameters of cyclone dust collector include: the inlet air velocity of the dust collector, the temperature of the treated gas and the inlet mass concentration of the dusty gas.

    1) inlet airflow velocity. For the cyclone dust collector with a certain size, the inlet air velocity increases, not only the treatment capacity can be increased, but also the separation efficiency can be effectively improved, but the pressure drop will also increase. When the inlet air velocity increases to a certain value, the separation efficiency may decrease, and the wear will be intensified, and the service life of the dust collector will be shortened. Therefore, the inlet airflow velocity should be controlled within the range of 18~23m/s.

    2) the temperature of the gas is treated. As the gas temperature rises, the viscosity increases and the centripetal force of the dust particles increases, so the separation efficiency decreases. Therefore, the dust collector running under high temperature should have larger inlet air velocity and smaller sectional velocity.

    3) inlet mass concentration of dusty gas. When the concentration is high, large particles of dust have obvious bearing on small particles of dust, which shows the separation efficiency increases.

    Cyclone dust collector uses centrifugal force to dust removal, the greater the centrifugal force, the better the effect of dust removal. In circular motion (or curvilinear motion), the centrifugal force of dust is F=ma; in the formula, F-- centrifugal force, N; m-- dust quality, kg; a-- dust centrifugal acceleration, m/s2. Because, a=VT2/R, in the formula, the tangential velocity of the VT-- dust particle, m/s; the rotational radius of the R-- air flow, m, so, F=mVT/R. It can be seen that the centrifugal force of cyclone dust collector will increase when the structure of cyclone dust collector is fixed (R constant) and the dust is the same (M stable).

    The inlet gas volume of cyclone dust collector is Q=3600AVT, and the inlet air volume of Q-- cyclone dust collector is m3/h, and the inlet cross section area of A-- cyclone dust separator is m2. So, in the fixed structure (R constant, A constant), the same dust (M stability) under the condition of dust collector population is proportional to the flow velocity and the inlet gas, and the import volume of the cyclone is determined by the air blower.

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