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Manufacture of underground seeping-irrigation pipe of knitware reinforced composite material

A composite material and underground infiltration irrigation technology, which is applied in the field of agricultural and forestry irrigation, can solve the problems of short service life, low strength, and prone to spraying, etc., and achieve the effect of long service life, good flexibility and uniform water seepage

Inactive Publication Date: 2004-09-29
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still many problems in the existing porous rubber pipes and porous plastic pipes: poor irrigation uniformity, low strength, insufficient pressure resistance, prone to jetting, and frequent side hole clogging; poor flexibility and poor terrain adaptability , short service life, etc. The existence of these problems affects the irrigation effect and makes it difficult to carry out the extension work

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] PVC 10Kg; additives: DOP 3Kg, DBP 5Kg, tribasic barium sulfate 0.1Kg, dibasic barium sulfite 0.15kg, barium stearate 0.1kg, sodium chloride powder 2kg. After mixing the raw materials, put them into the granulator for granulation. Then on the plastic coating machine, the particles are transformed into a colloidal mixture and coated on the inner and outer layers of the knitted tube embryo. The temperature of each section of the plastic coating machine is controlled as mouth: 180 degrees; machine head: 195 degrees; Compression head: 170 degrees; feeding section: 160 degrees. After the coating pipe is cooled and formed, it is placed in water for water treatment, then repeatedly pulled and squeezed by a roller tractor for 20 times, and finally taken out to dry to make a porous plastic irrigation pipe.

Embodiment 2

[0029] Polypropylene 10kg; additive DOP 4kg; DBP 6kg, potassium chloride powder 2kg. After mixing the raw materials, put them into the granulator for granulation. The particles are then transformed into a gelatinous mixture on a plastic coating machine and coated on the inner and outer layers of the knitted tube embryo. The temperature control of each section of the plastic coating machine is die: 166 degrees; machine head: 165 degrees; compression head: 161 degrees; feeding section: 157 degrees. After the coating pipe is cooled and formed, it is placed in water for water treatment, and then repeatedly pulled and squeezed by a roller tractor for 20 times, and finally taken out and dried to make a porous polypropylene permeable irrigation pipe.

Embodiment 3

[0031] PVC 10kg; additives DOP 4kg, DBP 2kg, tribasic barium sulfate 0.1kg, dibasic barium sulfite 0.15, barium stearate 0.1kg, calcium chloride 2kg. After mixing the raw materials, put them into the granulator for granulation. Then on the plastic coating machine, the particles are transformed into a colloidal mixture and coated on the inner and outer layers of the knitted tube embryo. The temperature of each section of the plastic coating machine is controlled as mouth touch: 180 degrees; machine head: 195 degrees; compression head : 170 degrees; feeding section: 160 degrees. After the coating pipe is cooled and formed, it is placed in water for water treatment, then repeatedly pulled and squeezed by a roller tractor for 20 times, and finally taken out to dry to make a porous plastic irrigation pipe.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The production method of underground infiltration-irrigating pipe includes the following steps: firstly, making chemical fiber filament or yarn into knitted pipe blank by means of knitting machine; and mixing the plastics or polypropylene fibre material, soluble inorganic powder which can be dissolved in water and adjuvant and pelleting by using pelleting machine; feeding said granular material into plastic coating machine to change the granular material into gelatinous plastic or polypropylene fiber mixture and applying said gelatinous mixture to internal layer and external layer of knitted pipe blank; then cooling and forming, making water treatment, repeated traction-pressing for 20 tiems and drying to obtain the invented porous plastic infiltration-irrigating pipe or porous polypropylene infiltration-irrigating pipe.

Description

Technical field: [0001] The invention belongs to the field of agriculture and forestry irrigation, and relates to a method for manufacturing a knitted fabric-reinforced composite material underground seepage irrigation pipe. Background technique: [0002] Subsurface irrigation is a new and economical water-saving irrigation method. It usually directly irrigates the roots of crops and trees in the form of seepage irrigation with the help of seepage pipes buried at a certain depth. Compared with ground sprinkler irrigation, drip irrigation, micro irrigation and other methods, it has many irreplaceable advantages: [0003] (1) Water saving. Under the premise of not affecting the growth of crops, the water consumption of underground irrigation is relatively small, because compared with surface irrigation, it has no surface evaporation. Research by Adamsem and Detar et al. in the United States shows that in the irrigation of corn and cotton, subsurface irrigation can save 30-40%...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C47/00B29C47/02B29C67/20
Inventor 陈跃华
Owner DONGHUA UNIV
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