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Screw extruder and method for regenerating rubber by adopting screw extruder

A technology of screw extruder and recycled rubber, which is applied in the field of screw extruder and recycled rubber using screw extruder, which can solve the problems of low heating efficiency and poor performance of extruded materials

Pending Publication Date: 2019-11-05
安徽世界村智能装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem of poor performance of the extruded material due to low heating efficiency in the extrusion process of the existing screw extruder, the present invention provides a screw extruder and a method for regenerating rubber using the screw extruder. The body is provided with installation holes and a built-in heating device to heat the barrel evenly and effectively, improving the overall performance of the final extruded product

Method used

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  • Screw extruder and method for regenerating rubber by adopting screw extruder
  • Screw extruder and method for regenerating rubber by adopting screw extruder
  • Screw extruder and method for regenerating rubber by adopting screw extruder

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Embodiment 1

[0060] Such as figure 1 As shown, the screw extruder of this embodiment includes a screw extruder main body 1 and a barrel 200, the base end of the barrel 200 is fixed to the screw extruder main body 1, and the barrel 200 consists of a plurality of barrel blocks 2 along a The directions are connected to each other, and the barrel 200 is divided into a heating section 201, a reaction section 202 and a cooling section 203 along the extrusion direction of the material in the screw extruder.

[0061] Such as image 3 As shown, the cylinder block 2 constituting the barrel 200 is a cuboid block structure, more specifically, the cylinder block 2 has a first end surface 22a and a second end surface 22b arranged oppositely and four connecting first end surfaces and the second end surfaces. On the side, the first end surface 22a and the second end surface 22b have the same shape. Further, the edge portions of the first end surface 22a and the second end surface 22b protrude outward to ...

Embodiment 2

[0073] A method for regenerating rubber using the screw extruder of Embodiment 1. First, start the heating rod 30 to preheat the material cylinder 20 in the barrel 200 to raise the temperature. 85 minutes, finally preheating the temperature of material vat 20 to 100-150°C, and preheating the temperature of material vat 20 slowly through heating rod 30 to ensure that the temperature in material vat 20 is uniform, which is beneficial to the performance of the product when the material is extruded. At the same time, The slow temperature rise avoids the influence of the structure of the barrel block 2 and the screw structure by the temperature, and prolongs the effective service life of the screw extruder; after the preheating is completed, start the screw extruder, and add waste rubber and regenerant into the material tank 20, Among them, the regenerant is a mixture of coumarone resin and pine tar in a mass ratio of 3:7, and the mass ratio of waste rubber to regenerant is 100:15; ...

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Abstract

The invention discloses a screw extruder and a method for regenerating rubber by adopting the screw extruder, and belongs to the field of rubber and plastic processing equipment. The screw extruder comprises a screw extruder main body and a machine barrel, wherein the machine barrel is sequentially divided into a heating section, a reaction section and a cooling section in the material extrusion direction, and the machine barrel is formed by connecting barrel blocks; each barrel block is in a cuboid shape, and is provided with a first end face and a second end face which are oppositely arranged and four side faces which are used for connecting the first end face with the second end face, the barrel block is provided with a material cylinder, and the material cylinder is a through hole which is formed by vertically penetrating from the first end face to the second end face and is used for containing screws of the screw extruder; each barrel block further comprises mounting holes and heating devices, wherein the mounting holes are through holes vertically penetrating the opposite side faces of the barrel block, the mounting holes and the material cylinder are arranged in a staggeredmode, and the heating devices are electric heating elements arranged in the mounting holes. According to the screw extruder, the mounting holes are formed in the barrel blocks which form the machinebarrel and the heating devices are arranged in the mounting holes, so that uniform and effective heating is carried out on the machine barrel, and the comprehensive performance of a final extruded product is improved.

Description

technical field [0001] The invention belongs to the field of rubber and plastic processing machinery and equipment, and more specifically relates to a screw extruder and a method for regenerating rubber by using the screw extruder. Background technique [0002] Screw extruder is a conventional rubber and plastic processing machinery and equipment, which is widely used in polymer blending, filling modification, regeneration and extrusion molding granulation. Temperature is one of the most important factors in many chemical reactions because it is an important indicator of energy transfer. The blending, filling modification, regeneration and extrusion molding of the above-mentioned polymers belong to the synergistic effect of thermal / mechanical shear to obtain the quality of the final product, and temperature plays a crucial role in it. [0003] In view of the fact that rubber and plastic in polymers are all insulators and have very weak heat transfer capabilities, when using...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C48/40B29C48/68B29C48/80B29C48/82B29C48/92B29C48/625
CPCB29C48/40B29C48/682B29C48/832B29C48/834B29C48/92B29C48/625B29C2948/92704B29C2948/9259B29C2948/92895B29C2948/92885
Inventor 唐帆黎广费大壮强金凤雷国安路丽珠陶克军张开炳孙岳红
Owner 安徽世界村智能装备有限公司
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