DEVICE FOR MANUFACTURING BUILDING MATERIAL AND METHOD FOR MANUFACTURING BUILDING MATERIAL Russian patent published in 2023 - IPC B07B1/48 B28B1/16 B28B13/02 B28B5/02 

FIELD: building materials.

SUBSTANCE: invention relates to a device and method for manufacturing a building material such as a building board. The device for the manufacture of building material comprises a screening unit, which includes a set of sheets, each of which is configured to carry out wave motion during operation of the device, which have an inclination and which are located in the direction of the inclination, and the set of sheets includes the first screening sheet and the second screening sheet located under the first screening sheet, the first screening sheet is a sheet in which a plurality of cells having the same size are arranged with a constant step in the sheet width direction of the set of sheets, and the second screening sheet is a sheet, in which a plurality of cells having two or more different sizes are arranged in the sheet width direction, or a sheet that has a cellular area and a non-cellular area, which are located in the sheet width direction; and a receiver for receiving building raw material that has passed through the cells of the screening unit, the receiver being able to move under a set of sheets.

EFFECT: creating a building material with high strength and high water resistance.

10 cl, 22 dwg