Fibrous filter pipe and preparation method and applications thereof

A technology of fiber filtration and filter tubes, applied in application, filtration circuit, filtration separation, etc., can solve the problems of poor resistance to heavy rainfall, loss of anti-scouring, large coverage area, etc., to reduce the amount of sediment loss and prevent rainwater runoff , the effect of preventing soil loss

Inactive Publication Date: 2019-06-07
JOFO GREEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reinforced three-dimensional polypropylene mesh pad of the invention has poor anti-scouring effect, and needs to achieve anti-scouring effect together with soil improvement fiber mixture, vegetation seeds, anti-erosion fiber mixture, heavy objects and non-woven fabrics. With the improvement of fiber etc. degradation, and gradually lost the anti-scouring effect; although the three-dimensional polypropylene mesh pad is anti-runoff erosion, it needs to be laid on the surface of the slope for use, covering a large area, affecting the growth of green vegetation, and at the same time, it cannot guide water discharge
[0006] The prior art fiber filter tubes for high and steep slopes have the following technical problems: (1) The existing fiber filter tubes have poor resistance to heavy rainfall and need to be used in combination with other reinforced mesh pads to achieve the water blocking effect ; (2) The absorption and filtration of rainwater is poor; (3) There is no drainage and centralized discharge of excess water such as heavy rainfall

Method used

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  • Fibrous filter pipe and preparation method and applications thereof
  • Fibrous filter pipe and preparation method and applications thereof
  • Fibrous filter pipe and preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1 A fiber filter tube

[0032] A fiber filter tube, which is wound to form a hollow tubular structure by wrapping an engineering composite material with a braided net;

[0033] The weight of the fiber filter tube is 0.7 kg / m; the thickness of the tube is 13 cm; the inner diameter of the tube is 15 cm.

[0034] The material of the woven mesh is polypropylene, the mesh aperture is 1*1cm, and the mesh diameter is 0.5mm.

[0035] Engineering composite materials, the raw material components include wood fiber, modified artificial fiber and flocculant; the amount of flocculant is 1 / 5 of the composite engineering material; the flocculant is a commercially available composite flocculant.

[0036] The wood fiber: raw materials are straw, paper, wood, the mass ratio is 5:2:1; the length of the wood fiber is 1cm, and the diameter is 0.5mm;

[0037] The modified artificial fiber: raw materials are bamboo and cotton linters, the mass ratio is 1:2; the modified artificial f...

Embodiment 2

[0050] Example 2 A process for preparing a fiber filter tube

[0051] Specific steps are as follows:

[0052] (1) Preparation of wood fiber

[0053] Mix the straw, paper and wood, place them in hot water at 180°C, and after 30 minutes, draw them to form wood fibers, and cut them with a rotary hob-type fiber chopping machine to form wood fibers with a length of 1 cm and a diameter of 0.5 mm;

[0054] (2) Preparation of modified man-made fibers

[0055]Bamboo and cotton linters are reacted with sodium hydroxide solution, the reaction temperature is 40°C, and the reaction time is 40 minutes; after the reaction, the reaction solution is placed in an environment fully filled with carbon disulfide, and the amount of carbon disulfide intake is the weight of the reaction solution 35% of 35%; the reaction solution reacts with carbon disulfide at an initial temperature of 20°C and an end temperature of 32°C for 130 minutes to obtain the final reaction solution and make modified artifi...

Embodiment 3

[0063] Example 3 Application of a fiber filter tube in slope greening

[0064] The specific method is as follows:

[0065] (1) Level the slope and remove obstacles with a diameter greater than 3cm;

[0066] (2) After determining the installation position of the fiber filter tube, excavate a fixed groove with a depth of 7cm and a width of 15cm on the slope, place the fiber filter tube in it, and place loose planting soil upstream of the tube; (The installation environment of the fiber filter tube is On the slope surface, the side near the top of the slope is upstream, and the side near the bottom of the slope is downstream; the effect of placing planting soil is to bury the gap between the fixing groove and the fiber filter pipe, so that there is no obvious fault trace on the slope.)

[0067] The fiber filter tubes are placed on the surface of the slope body in an arc shape, and are distributed on the slope surface at a certain horizontal interval, as shown in the following ta...

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Abstract

The invention provides a fibrous filter pipe and a preparation method and applications thereof. The filter pipe is a woven net wrapped composite engineering material, which is reeled to form a hollowtubular shape; and the composite engineering material comprises wood fibers, modified artificial fibers, and a flocculating agent. The flocculating agent accounts for 1/6 to 1/4 of the weight of the composite engineering material; and the mass ratio of wood fibers to modified artificial fibers is 1: 1.5-2.5. The provided fibrous filter pipe has a strong performance on resisting heavy rainfall, does not need to be used with other water barrier facilities such as reinforced gauze pads, other fibrous materials, and the like, and is capable of preventing the erosion on a slope by rainfalls.

Description

technical field [0001] The invention relates to a fiber filter tube and its preparation method and application, belonging to the technical field of environmental protection. Background technique [0002] High and steep slopes are easily eroded by heavy rainfall, causing dangers such as slope landslides. The existing technology mainly uses reinforcement mesh pads, filter pipes, etc. to achieve the purpose of resisting rainfall erosion. [0003] However, the existing reinforced mesh pads and filter tubes have poor water blocking effects, and a large number of other fibers need to be added to jointly block water and achieve the anti-scouring effect; The soil structure of the slope is destroyed, and it needs to be covered on the slope surface, affecting the growth of slope vegetation; even, the vegetation that causes slope greening is slowly degraded. Once the protection of vegetation is lost, the ability of the slope to resist rainfall will be greatly reduced . It can be seen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D36/00C02F9/04A01B79/02E02D17/20
Inventor 王景荣
Owner JOFO GREEN CO LTD
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