Production line of EPP polypropylene foaming beads

An expanded bead and production line technology, applied in the direction of coating and the like, can solve the problem of not disclosing the content of the EPP polypropylene expanded bead production line, etc., and achieve the effect of stable product quality and uniform content

Inactive Publication Date: 2009-11-25
江苏诚盟装备股份有限公司
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  • Production line of EPP polypropylene foaming beads
  • Production line of EPP polypropylene foaming beads

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Embodiment Construction

[0011] An EPP polypropylene foamed bead production line of the present invention includes a twin-screw extruder, an underwater pelletizing system, a dehydration system, a drying system, and an electrical control cabinet connected to each equipment, and is characterized in that it also includes low-temperature mixing System, sealed leak-proof feeder, plasma fluidized bed reactor, water-soluble reaction system and surface treatment mixing system, each equipment or system is connected in the following order: low-temperature mixing system → sealed leak-proof feeder → twin-screw Extruder → underwater pelletizing system → first deep drying system → plasma fluidized bed reactor → water-soluble reaction system → second deep drying system → surface treatment mixing system → finished product silo and packaging system, the twin-screw extruder A gas blowing agent injection port is provided on the machine; a plasma reaction device and an inert gas injection device are arranged on the plasma...

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Abstract

The invention discloses a production line of EPP polypropylene foaming beads, which is characterized in that devices or systems are connected in turn according to the following sequence: a low-temperature mixing system, a sealed leakage-proof feeding machine, a double-screw extruder, an underwater grain cutting system, a first depth drying system, a plasma fluidized bed reactor, a water-soluble reaction system, a second depth drying system, a surface treatment mixing system, a finished product storage hopper and a packing system; the double-screw extruder is provided with a gas foaming agent filling opening; a plasma reaction device and an inert gas filling device are arranged on a plasma fluidized bed of the plasma fluidized bed reactor; and the water-soluble reaction system comprises a water-soluble reaction kettle which is provided with an auxiliary low-temperature liquid medium filling opening and a liquid foaming agent filling opening. The foaming agent content in the EPP polypropylene foaming beads produced by the production line is even, and the product quality is stable.

Description

technical field [0001] The invention relates to an EPP polypropylene foamed bead production line, which belongs to the technical field of chemical machinery. Background technique [0002] EPP foamed beads are reacted and mixed in a twin-screw extruder by HSMPP, resin, additives, etc., and then cut out small-diameter beads by a pelletizer, and then foamed to finally become EPP pre-foamed Bead products. At present, the material process route of the complete set of "polypropylene foaming" equipment in the world adopts the general "chemical method", and there is no technical content for polypropylene foaming by physical methods. [0003] The system process for producing polypropylene foam beads by the chemical method is: mixing system→screw extruder→water ring cutting system→dehydration system→drying system→finished product. [0004] During the production process, the gas foaming agent is all injected into the twin-screw extruder for mixing, extruding and pelletizing. During t...

Claims

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Application Information

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IPC IPC(8): C08J9/16C08L23/12B29B9/06B29B9/16B29B7/80B29C47/60B29C48/39B29C48/385B29C48/40
CPCB29C47/369B29C47/366B29C48/385B29C48/39B29C48/40B29B7/7485B29B9/065B29B7/487B29B7/748B29B7/7414B29B7/845B29B7/72
Inventor 房宾黄庆蒋锡宝马宏
Owner 江苏诚盟装备股份有限公司
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