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An Improved Polyolefin Pipe Extruder

An extruder and polyolefin technology, which is applied in the field of polyolefin pipe production equipment, can solve the problems of increased maintenance costs, high energy consumption, and low output, and achieve the goals of reducing the number of times to disassemble and clean the screw, avoiding material decomposition, and saving electric energy Effect

Active Publication Date: 2017-03-15
TANGSHAN CHANGHONG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary extruders have the disadvantages of high energy consumption, low output, easy pyrolysis to generate impurities and increased maintenance costs during the working process.

Method used

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  • An Improved Polyolefin Pipe Extruder
  • An Improved Polyolefin Pipe Extruder
  • An Improved Polyolefin Pipe Extruder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] refer to figure 1 and image 3 , the structure of this embodiment includes a barrel 1, which is divided into a feeding section, a compression section and a metering section, a drying hopper 2 is arranged on the upper part of the feeding section, and a screw 3 is arranged inside the barrel 1. The outer side of the cylinder 1 is provided with an organic cylinder partition heater 30 and a heat collecting cover 4, and the heat collecting cover 4 is connected to the drying material hopper 2 through the air collecting pipe 5, and a fan 6 and a heater 7 are arranged in the air collecting pipe 5. The air collecting pipe 5 is also provided with a cold air inlet pipe 8, the air collecting pipe 5 and the cold air inlet pipe 8 are respectively provided with a first butterfly valve 9 and a second butterfly valve 10, and the outer side of the heat collecting cover 4 is provided with an organic barrel for cooling. The fan 11; the inside of the screw 3 is provided with a heat conducti...

Embodiment 2

[0018] refer to figure 2 and image 3 , the structure of this embodiment includes a barrel 1, which is divided into a feeding section, a compression section and a metering section, a drying hopper 2 is arranged on the upper part of the feeding section, and a screw 3 is arranged inside the barrel 1. The outer side of the cylinder 1 is provided with an organic cylinder partition heater 30 and a heat collecting cover 4, and the heat collecting cover 4 is connected to the drying material hopper 2 through the air collecting pipe 5, and a fan 6 and a heater 7 are arranged in the air collecting pipe 5. The air collecting pipe 5 is also provided with a cold air inlet pipe 8, the air collecting pipe 5 and the cold air inlet pipe 8 are respectively provided with a first butterfly valve 9 and a second butterfly valve 10, and the outer side of the heat collecting cover 4 is provided with an organic barrel for cooling. The fan 11; the inside of the screw 3 is provided with a heat conduct...

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Abstract

The invention discloses a modified polyolefin pipe extruder which structurally comprises a machine barrel, wherein the upper part of the machine barrel is provided with a material baking hopper, a screw rod is arranged in the machine barrel, the outer side of the machine barrel is provided with a heat gathering cover, the heat gathering cover is connected to the material baking hopper by a wind gathering pipe, a fan and a heater are arranged in the wind gathering pipe, the wind gathering pipe is also provided with a cold air inlet pipe, the wind gathering pipe and the cold air inlet pipe are respectively provided with a first butterfly valve and a second butterfly valve, and the outer side of the heat gathering cover is provided with a machine barrel cooling fan; and a thermal-conducting oil pipe is arranged in the screw rod, and the thermal-conducting oil pipe is connected to a thermal-conducting oil circulating mechanism. According to the extruder disclosed by the invention, the shortcomings in the prior art can be overcome, the material plastification is accelerated, the extrusion output is increased, the generation of impurities caused by high temperature decomposition and unnecessary screw cleaning can be avoided, and meanwhile, fed materials are dried by using waste heat produced by raw material heating, so that the energy utilization rate is increased.

Description

technical field [0001] The invention relates to a polyolefin pipe production equipment, in particular to an improved polyolefin pipe extruder. Background technique [0002] The extruder is one of the important equipments for the production of polyolefin pipes. Through electric heating and shearing between the screw, barrel and materials, the raw materials are plasticized and formed. Ordinary extruders have the disadvantages of high energy consumption, low output, easy pyrolysis to generate impurities and increased maintenance costs during the working process. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an improved polyolefin pipe extruder, which can solve the deficiencies of the prior art. It improves the extrusion rate, avoids impurities generated by pyrolysis and unnecessary screw cleaning, and at the same time uses the waste heat of heating raw materials to dry the feed to improve energy utilization. [...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C47/00B29C47/84B29C47/60
Inventor 万宝清张久如
Owner TANGSHAN CHANGHONG PLASTICS