METHOD AND SYSTEM FOR COMMINUTING AND CLEANING WASTE PLASTIC

    公开(公告)号:US20230264993A1

    公开(公告)日:2023-08-24

    申请号:US18165878

    申请日:2023-02-07

    Applicant: Krones AG

    CPC classification number: C02F3/06 B09B3/35 C02F2103/38

    Abstract: A method and a system for comminuting and cleaning waste plastic are described. For this purpose, waste plastic is comminuted and pre-washed in a wet mill and then cleaned in a washing system. The resulting wastewater is subjected to mechanical filtration and flotation and then temporarily stored as circulating water. Based on this, some of the circulating water is returned to the wet mill as first process water and some of the circulating water is returned to the washing system as second process water. In this way, the first and second portions of the circulating water may be specifically adapted to the respective water requirements of the wet mill and the washing system as well as to the required water qualities, if necessary with selective post-cleaning of the second portion of the circulating water. As a result, the fresh water requirement for the process described may be minimized.

    Method and apparatus for forming plastic preforms for plastic containers with curve evaluation

    公开(公告)号:US20230138489A1

    公开(公告)日:2023-05-04

    申请号:US17949192

    申请日:2022-09-20

    Applicant: KRONES AG

    Abstract: Method for forming plastic preforms into plastic containers, wherein a plastic preform is introduced into a blow mould and is expanded into a plastic container by being applied by a flowable medium, wherein the plastic preform is applied by at least two different pressure levels and wherein furthermore preferably a rod-like body is introduced into the plastic preform, in order to expand the plastic preform in its longitudinal direction, wherein a pressure curve and/or a movement curve of the rod-like body being determined by a measuring device during the expansion process, wherein least one of the curves is evaluated by means of a processor device and at least one point or region of this curve which is characteristic of the course is determined.

    METHOD AND APPARATUS FOR ANALYZING PLASTIC PREFORMS

    公开(公告)号:US20220307979A1

    公开(公告)日:2022-09-29

    申请号:US17566310

    申请日:2021-12-30

    Applicant: KRONES AG

    Abstract: Disclosed is a method analysing plastic preforms, wherein plastic preforms are transported along a predetermined transport path by a transport device and an infrared absorption coefficient is determined in at least one region of the plastic preform, wherein, in order to determine the infrared absorption coefficient of the plastic preform, infrared radiation is applied to the plastic preform by a first radiation device and radiation passing through the plastic preform is received by at least one receiving device and an infrared absorption behaviour of the plastic preform is determined from this received radiation, wherein the radiation device acts upon the plastic preforms with infrared radiation in a predetermined wavelength range and an evaluation device evaluates the radiation as a function of its wavelength in a wavelength range from 1500 nm to 2000 nm.

    SYSTEM FOR PRODUCING CONTAINERS FROM PREFORMS

    公开(公告)号:US20250135709A1

    公开(公告)日:2025-05-01

    申请号:US18925584

    申请日:2024-10-24

    Applicant: Krones AG

    Abstract: A system for producing containers from preforms, the system comprising a production machine for producing preforms, a blow molding machine for producing containers from preforms, a transport device for feeding preforms from the production machine to the blow molding machine and a storage device to which preforms can be fed from the transport device at a removal point and transferred to the transport device at a transfer point, wherein the storage device comprises a temperature-control device for temperature-control of the preforms.

Patent Agency Ranking