METHOD FOR MILLED PEAT LARGE FRACTION ISOLATION AT ROLLER-DISC SCREEN Russian patent published in 2017 - IPC B07B1/16 C10F7/00 

FIELD: mining.

SUBSTANCE: method for milled pit large fraction isolation one roller-disc screen includes screening with the division of the obtained product to fines and reject, as well as fines sorting on rotating parallel shafts with discs fixed in a chessboard order thereon. The frequency of shaft rotation along the course of peat movement changes wavily, initially with an increasing frequency of rotation, then with a smooth transition to a decreased rotational speed and then with a smooth transition to an increased rotational speed. Shaft rotation speed on a 9-shaft roller-disc screen along the peat movement course is 49 to 51 rpm on the 1st shaft, 57 to 59 rpm on the 2nd shaft, 83 to 85 rpm on the 3rd shaft, then the rotation speed of the 4th shaft is 83 to 85 rpm, after which the rotation speed decreases and is 57 to 59 rpm on the 5th shaft, 49 to 51 rpm on the 6th shaft, then the rotation speed of the 7th shaft ranges from 49 to 51 rpm, after which the rotation speed increases and is 57 to 59 rpm on the 8th shaft, then the rotation speed on the 9th shaft is 59 to 57 rpm.

EFFECT: increased the number of milled peat large fraction obtained with an average weighted diameter of particles mixture from 6 to 12 mm, necessary to enhance the quality of bales obtained, making them less heavy and more durable.

2 cl, 4 dwg