Invention Grant
- Patent Title: Method and device for producing engineered stone slabs
-
Application No.: US17057884Application Date: 2019-05-27
-
Publication No.: US11541569B2Publication Date: 2023-01-03
- Inventor: Wolfgang Johann Horvath
- Applicant: EQTEC Engineered Quartz Technology GmbH
- Applicant Address: AT Wiener Neustadt
- Assignee: EQTEC Engineered Quartz Technology GmbH
- Current Assignee: EQTEC Engineered Quartz Technology GmbH
- Current Assignee Address: AT Wiener Neustadt
- Agency: Collard & Roe, P.C.
- Priority: ATA50433/2018 20180528
- International Application: PCT/AT2019/060176 WO 20190527
- International Announcement: WO2019/227114 WO 20191205
- Main IPC: B28B5/02
- IPC: B28B5/02 ; B28B1/00 ; B28B13/02 ; B30B15/30

Abstract:
The invention relates to a method and a plant for the continuous production of engineered stone slabs. In the method, raw materials comprising at least one mineral filler and one organic binder are mixed, applied to a lower belt of a dual-belt press, or a conveying means mounted upstream of the lower belt, and subsequently continuously pressed, and the binder is cured. A continuously-obtained material strand is separated into individual engineered stone slabs. It is provided that the mixing operation of the raw materials is carried out at staggered times in a batch mixing operation by means of at least two separate mixing devices. The mixed raw materials from the mixing devices are transferred into one, or multiple, spreading device(s) at staggered times and are applied continuously and without interruption to the lower belt, or the conveying means mounted upstream of the lower belt, by means of the spreading device(s).
Public/Granted literature
- US20210114253A1 METHOD AND DEVICE FOR PRODUCING ENGINEERED STONE SLABS Public/Granted day:2021-04-22
Information query