Suspended particle sedimentation velocity classification device and method
A technology of suspended particles and classification device, applied in the field of research on the sedimentation characteristics of suspended particles, can solve the problems of inability to collect suspended particles, lack of sediment classification, etc., and achieve the effects of simple structure, low manufacturing cost and high recovery rate
Active Publication Date: 2015-10-21
ZHEJIANG UNIV
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[0006] However, the above-mentioned device and method only measure the sedimentation velocity of the particles in the suspension, and cannot collect the suspended particles classified by the sedimentation velocity, so that the pollution characteristics of the suspended particles cannot be studied. Apparatus and method for grading by sinking speed
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[0037] Such as Figure 1~3 As shown, the suspended particle sedimentation velocity classification device in this embodiment includes: a rectangular settling cylinder 1, and the bottom of one side of the settling cylinder 1 is connected with a classification collection unit. In this embodiment, the classification collection unit adopts a drawer type sedimentation device 2 .
[0038] The drawer-type sedimentation device 2 includes: a sealed storage chamber 4 connected to the inlet and outlet of the side of the settling cylinder 1, a drawer cover 9 connected to the drawer opening of the sealed storage chamber 4 through a flange 5, and vertically distributed in the sealed storage chamber 4. Layers of movable sedimentation boxes 3, each sedimentation box 3 is used to collect suspended particles in different sinking speed intervals, the horizontal position of the sedimentation box 3 is controlled by the corresponding stainless steel push rod 6, the push rod 6 is a screw rod, and the...
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The invention discloses a suspended particle sedimentation velocity classification device. The suspended particle sedimentation velocity classification device comprises a sedimentation cylinder, the suspended particle sedimentation velocity classification device further comprises a classification collection unit connected with the side wall of the sedimentation cylinder, and the classification collection unit comprises a seal containing cavity, a plurality of mud sedimentation boxes and a driving mechanism, wherein an in-out port communicated with the side wall of the sedimentation cylinder is formed in the seal containing cavity, the mud sedimentation boxes are installed in the seal containing cavity and used for collecting suspended particles, the mud sedimentation boxes are distributed in the vertical direction and capable of moving between the seal containing cavity and the sedimentation cylinder through the in-out port in the horizontal direction, and the driving mechanism is used for driving the mud sedimentation boxes to move. The invention further discloses a suspended particle sedimentation velocity classification method. The suspended particle sedimentation velocity classification device is simple in structure, low in manufacturing cost and capable of collecting the suspended particles in different sedimentation velocity areas; by means of the suspended particle sedimentation velocity classification method, the suspended particles can be classified into a plurality of continuous sedimentation velocity at will, and the recovery is high and stable.
Description
technical field [0001] The invention relates to the field of research on the sedimentation characteristics of suspended particles, in particular to a device and method for classifying the settling speed of suspended particles. Background technique [0002] Urban surface sediments and sediments in drainage systems are discharged into receiving water bodies under the erosion of rainwater runoff, which is a non-negligible source of urban water environmental pollution. Once these particles and other pollutants attached to them (such as N, P, oily substances, toxic oil hydrocarbons (PHC) and polycyclic aromatic hydrocarbons (PAHS), heavy metals, etc.) enter the water body, one will increase the water body Turbidity, the second is that the attached toxic and harmful pollutants deteriorate the water quality, and the third is that it is deposited as sediment in rivers, lakes and seas, affecting the bottom section and destroying the habitat of bottom organisms. [0003] Settling vel...
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Inventor 周永潮张萍张仪萍
Owner ZHEJIANG UNIV