Ventilated anti-blocking composite filter tube structure and method for banding the same

A filter tube and anti-silting technology, applied in separation methods, infrastructure engineering, chemical instruments and methods, etc., can solve problems such as filter layer silting, and achieve the effects of low cost, convenient use, and low price

Inactive Publication Date: 2009-08-05
HOHAI UNIV
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Problems solved by technology

[0003] The purpose of the present invention is to propose a composite filter tube structure that can be used in conjunction with the ventilating vacuum rapid mud-water separation method in the sludge storage yard and the dredging land reclamation site, so as to jointly solve the problem of dredging mud-water separation with high moisture content and high clay content. The problem of filter blockage

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  • Ventilated anti-blocking composite filter tube structure and method for banding the same

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Embodiment Construction

[0014] control attached figure 1 , its structure is a four-layer structure, from inside to outside as follows: low-conductance inner tube 1, water filter layer 2, air-permeable porous filling material 3, and high-permeability water-permeable outsourcing material 4.

[0015] As for the low flow conductance inner tube 1 , flow conductance is a concept in fluid mechanics, which is the amount of air flowing through the conduit under a unit pressure difference. The relationship of conductance to piping systems can be compared to the relationship of electrical resistance to electrical circuits. The low-conductance inner pipe is made of densely drilled hard plastic pipes (such as PVC, PP, PE pipes). For deep silt yards, galvanized iron pipes with densely drilled holes should be used for deep-buried piping systems. As a low-conductance inner tube, it increases its pressure resistance. The diameter of the low conductance inner tube 1 is generally between 3cm and 10cm.

[0016] The m...

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Abstract

The invention relates to an air permeable anti-clogging composite filter tube structure and a seizing method. The air permeable anti-clogging composite filter tube structure has the following four layers from inside to outside: a low flow admittance inner tube, a water filtration layer, an air permeable porous filling material, and a high water permeability enwrapping material. The seizing method comprises the following steps: coating the low flow admittance inner tube which is evenly punched in advance with a layer of the water filtration layer material; sleeving the seized low flow admittance inner tube and the water filtration layer into the cylindrical high water permeability enwrapping material which is formed in advance; filling up the air permeable porous filling material between the water filtration layer and the high water permeability enwrapping material; and connecting the two ends of the whole composite structure with an exhaust pipe and a vent pipe respectively, and sealing the interfaces. The invention has the advantages that the invention solves the clogging problem which is frequently encountered during high water content sludge dredging; and an air permeable vacuum rapid sludge water separation method reaches an optimal effect in the project. The air permeable anti-clogging composite filter tube structure has easily-purchased raw materials, low price, convenient use, simple structure, simple process, and easy generalization and application.

Description

technical field [0001] The invention relates to an air-permeable anti-silting composite filter pipe structure and a binding method thereof used in the air-ventilating vacuum rapid mud-water separation measures of the mud storage yard and the dredging land reclamation site. This structure is a filter pipe structure specially used for the measures of rapid mud-water separation in a vacuum with high water content and high clay content of silt materials, and belongs to the field of geotechnical engineering and related technologies. Background technique [0002] In river dredging and dredging projects and sea reclamation projects, the problem of dredging and filling consolidation of soil with high water content will be encountered. For sites filled with high water content silt, if the drainage of the site is not smooth or the clay content of the dredged silt is high, the consolidation and settlement will be a long process. In order to carry out the next engineering project as so...

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Application Information

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IPC IPC(8): B01D29/13E02B11/00E02D3/10
Inventor 高玉峰周源邓东升洪振舜陶辉柴永进
Owner HOHAI UNIV
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