Drum-type irregularly shaped sediment sorting three-dimensional testing device and testing method
A test device and irregular technology, applied to the analysis of materials, instruments, etc., can solve problems such as poor effectiveness and complex physical processes
Active Publication Date: 2018-09-04
ZHEJIANG UNIV OF TECH
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Problems solved by technology
[0006] In order to overcome the disadvantages of the complex and poor effectiveness of the physical process of non-uniform mass diffusion and sorting in the prior art, the present invention provides a drum-type non-uniform mass particle separation test device and its test method
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example 1
[0053] Example 1: Experimental simulation of the separation of sediment particles with different particle sizes in the sedimentation process
[0054] The transparent cylinder 18 of prefabricated plexiglass material, diameter is 30cm~60cm (the present embodiment is 30cm), and length is 70cm~100cm (the present embodiment is 80cm), and wall thickness is 1.5cm~2.5cm (the present embodiment is 2cm). ); a number of prefabricated rectangular square tubes made of aluminum alloy, including two types of rectangular square tubes of 5cm*10cm and 5cm*5cm, which are connected by welding and screws; prefabricated protective cover 18 of organic plastic material, with a thickness of 2cm ~4cm (the present embodiment is 4cm), and the mini-support 28 is fixed on the protective cover 30; The prefabricated width is the conveyor belt 27 of 10cm~20cm (the present embodiment is 15cm), and the crawler belt 32 length is 100cm~150cm (the present embodiment Example is 130cm), conveyor belt 27 both sides a...
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Abstract
The invention provides a drum-type irregularly shaped sediment sorting three-dimensional testing device. A transparent drum is used for accommodating irregularly shaped sediment required by testing; protective covers are mounted at the top; two conveying belts are arranged at the bottom of the transparent drum, and used for supporting and driving the transparent drum to rotate; a laser beam transmitted by a laser penetrates through a circular cross section of the transparent drum in a lasing surface form; laser light can be irradiated to three different cross sections to achieve multi-cross section three-dimensional observation by adjusting a reflector and light-transmission reflectors; a high-speed camera is used for shooting displacement characteristics of sediment grains on the cross sections irradiated by the laser light and connected with a computer through a data wire to store images shot by the camera. The invention provides a drum-type irregularly shaped sediment sorting three-dimensional testing method. A physical process of nonuniform bed load diffusion and separation is simplified; the influence of interference items different from a particle size in a testing process isreduced; more regular testing data is obtained for supporting theoretical research.
Description
technical field [0001] The invention relates to the field of river bed deposition, in particular to a drum-type irregular shape sediment sorting three-dimensional test device and a test method thereof, which are used for simulating the longitudinal deposition of sediment particles with different particle sizes at the bottom of the river bed and the dynamics of their sorting and diffusion process. Background technique [0002] The movement and sorting characteristics of sediment particles at the bottom of the riverbed have an important influence on the sedimentary characteristics of the riverbed and the formation of the riverbed sand slope. The surface layer of the riverbed is usually deposited as coarse-grained sediment, while the fine-grained sediment is usually deposited to the bottom of the riverbed, but the research on the formation mechanism of this universal law in nature is very limited. [0003] In order to understand this natural phenomenon, people usually establis...
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IPC IPC(8): G01N15/04
CPCG01N15/04Y02A90/30
Inventor 周佩剑吴振兴牟介刚蒋豪杰
Owner ZHEJIANG UNIV OF TECH