US 11,136,507 B2Granted

Continuous feeding process and device for waste flexible polymer material

AssigneeNiutech Environment Technology Corporation

InventorsXiaolu Niu, Guoqian Han, Jie Niu, Lanying Tong, Haimin Zhang, Zongcai Li, Shengyu Shi, Bin Niu

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Abstract

A continuous feeding process and device for waste flexible polymer material; wherein the process continuously feeds waste flexible polymer material into a subsequent pyrolysis apparatus following compression, cutting and dispersion; the waste flexible polymer material is pre-treated during compression, cutting and dispersion to achieve continuous sealing feeding, while pyrolysis oil gas preheats and self-lubricates the device; the device used includes a feeding apparatus, a material dispersion apparatus and a screw feeder; the material is compressed, cut and dispersed in the feeding apparatus and the material dispersion apparatus, and then falls into the screw feeder, being preheated and thermally sealed by the pyrolysis oil-gas in the screw feeder; by using such a process, waste flexible polymer material from various sources may be continuously fed for pyrolysis, fully using the temperature of an oil-gas generated in a pyrolysis machine for preheating and device lubrication.

Claims3

Dependent claims

A continuous feeding device for waste flexible polymer material, comprising

a feeding apparatus and a material dispersion apparatus,
the feeding apparatus is composed of a feeding silo, an inclined silo and a cavity, the inclined silo and the cavity are both provided with feeding pistons, a discharge end of the cavity is connected with the material dispersion apparatus,
the material dispersion apparatus includes a housing and a spiral cutting device including a spiral cutter arranged in the housing a bottom of the material dispersion apparatus is connected with a screw feeder, and a discharge end of the screw feeder is connected to a pyrolysis machine;
wherein:
the feeding silo is arranged on the inclined silo,
the cavity is arranged at a bottom of the inclined silo,
a top of the inclined silo is provided with an inclined feeding piston,
a horizontal feeding piston is arranged on a side of the cavity away from the discharge end,
a cross-section of the cavity is circular,
a bottom of the inclined feeding piston is an arc-shaped depression matching with the cross-section of the cavity, and
the waste flexible polymer material is selected from waste plastics or waste tires.

8 more elements

Dependencies are inferred from the claim text.