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Method of continuously and quickly preparing low-cost rubber-plastic blended microporous infiltrating irrigation pipe from reclaimed material of multi-ordered extruder

A technology of extruder and recycled materials, which is applied in the field of preparing rubber-plastic blended microporous irrigation pipes and multi-stage extruders to prepare rubber-plastic blended microporous irrigation pipes, which can solve the problem of low water seepage uniformity and process time. Long, high preparation costs, etc., to achieve the effect of solving low water seepage uniformity, high-efficiency production process, and improving mechanical properties

Active Publication Date: 2019-01-11
北京润泽润丰应用技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the discontinuous process section, long process time, high production cost, low water seepage uniformity and poor mechanical properties at relatively high cost in the current rubber-plastic blended microporous permeable irrigation pipe preparation method A new method for continuous and rapid preparation of low-cost rubber-plastic blended microporous irrigation pipes with multi-stage extruders

Method used

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  • Method of continuously and quickly preparing low-cost rubber-plastic blended microporous infiltrating irrigation pipe from reclaimed material of multi-ordered extruder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: A conical co-rotating twin-screw extruder with a length-to-diameter ratio of 20:1 and an average screw diameter of 60 mm is used for the co-rotating twin-screw extruder 1; a side feeder 4 is selected with a length-to-diameter ratio of 16:1 and a rotor A single-rotor machine with a diameter of 40mm; Extruder 5 adopts a conical counter-rotating twin-screw extruder with an aspect ratio of 20:1 and an average screw diameter of 70mm; the head adopts a double head. Co-rotating twin-screw extruder 1 The number of barrels in the activation section is 2, the temperature is 100°C, 110°C, the number of barrels in the mixing section is 2, the temperature is 140°C, 150°C, the number of barrels in the discharge section It is 1 section, and the temperature is 130°C; side feeder 4 has 4 heating zones, and the temperatures are 100°C, 120°C, 140°C, 140°C; 120°C, 130°C, 140°C, 150°C, 150°C, 140°C. After the temperature reaches the set temperature and stabilizes, add the was...

Embodiment 2

[0023] Example 2: A parallel co-rotating twin-screw extruder with an aspect ratio of 28:1 and a screw diameter of 30 mm is used for the co-rotating twin-screw extruder 1; a side feeder 4 is selected with an aspect ratio of 8:1 and a rotor diameter of 20 mm One set of double-rotor machine; one set of single-screw extruder with length-to-diameter ratio of 8:1 and screw diameter of 35 mm for extrusion shaping extruder 5; the head adopts single head. Co-rotating twin-screw extruder 1 has 2 barrels in the activation section, and the temperatures are 100°C and 110°C in sequence; the number of barrels in the mixing section is 4, and the temperatures are 130°C, 140°C, 140°C, and 150°C in turn. The number of barrels in the discharge section is 1 section, and the temperature is 130°C; the side feeder 4 has 2 heating zones, and the temperatures are 120°C and 140°C; the extruder 5 has 3 heating zones, and the temperatures are sequentially It is 140°C, 150°C, and 145°C. After the temperat...

Embodiment 3

[0025] Example 3: A parallel co-rotating twin-screw extruder with an aspect ratio of 24:1 and a screw diameter of 75mm is used for the co-rotating twin-screw extruder 1; a side feeder 4 is selected with an aspect ratio of 12:1 and a rotor diameter of 50mm One single-rotor machine; extruder 5 adopts a single-screw extruder with a length-to-diameter ratio of 16:1 and a screw diameter of 90mm, and the head adopts multiple heads. Co-rotating twin-screw extruder 1 has 2 cylinders in the activation section, and the temperatures are 100°C and 120°C in sequence; the number of barrels in the mixing section is 3, and the temperatures in the discharge section are 140°C, 160°C, and 150°C in sequence. The number of barrels is 1 section, and the temperature is 140°C; the side feeder 4 has 3 heating zones, and the temperatures are 120°C, 140°C, and 140°C; the extruder 5 has 5 heating zones, and the temperatures are sequentially 120°C, 140°C, 150°C, 150°C, 145°C. After the temperature reache...

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Abstract

The invention relates to a method of continuously and quickly preparing a low-cost rubber-plastic blended microporous infiltrating irrigation pipe from a reclaimed material of a multi-ordered extruderand belongs to the field of waste rubber recycling. The method comprises the following steps: by means of one intermeshing co-rotating twin screw extruder, one or two side feeders, one extruding andforming extruder, a cooling water channel, a traction machine and a rolling machine, continuously mixing and extruding rubber powder activated by an activating section of an intermeshing co-rotating twin screw extruder and a reclaimed plastic and a volume increasing modifier fused and plasticized by one or two side feeding machines in a mixing section of the intermeshing co-rotating twin screw extruder; packaging the mixture by means of the traction machine and the rolling machine after cooling and sizing to obtain a product. The method overcomes the contradiction that high-temperature rubberpowder is incompletely desulfurized and a low-temperature plastic is incompletely fused when the rubber powder and the plastic are treated at the same time, solves the problems of relatively poor mechanical property and relatively great smell, and solves the problems of long mixing time, incontinuity and relatively poor seepage uniformity of the product as a result of intermittent mixing, and saves additives. The method has the advantages of being continuous, quick, low in cost, good in seepage uniformity, improved in mechanical property, small in smell, resistant to block and the like.

Description

Technical field: [0001] The invention relates to a new method for preparing rubber-plastic blended microporous irrigation pipes, in particular to a method for preparing rubber-plastic blended microporous irrigation pipes with a multi-stage extruder, which belongs to the recycling and reuse of waste rubber and recycled plastics and agricultural irrigation and water-saving fields. Background technique: [0002] my country is facing the multiple problems of the world's largest annual output of waste tires, low value-added recycling of recycled plastics, and extremely limited per capita fresh water resources. Among them, agricultural irrigation water accounts for 50% of the total water consumption, but my country's effective utilization coefficient of farmland irrigation water Therefore, it is of great significance to efficiently and environmentally friendly use waste tire rubber and recycled plastics to solve the problem of water conservation in agricultural irrigation. Compare...

Claims

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Application Information

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IPC IPC(8): B29C48/00B29C48/285B29C48/395C08L19/00C08L23/12C08L23/08C08L23/06C08L9/06B29L23/00
CPCB29L2023/22C08L19/003C08L2205/025C08L2205/035C08L2207/062C08L2207/20C08L23/12C08L23/0853C08L23/06C08L9/06
Inventor 任冬云刘晓博胡强王杰汪冯新张珠珠田森林王访
Owner 北京润泽润丰应用技术研究院有限公司
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