METHOD FOR DEVELOPMENT OF PEAT DEPOSITS Russian patent published in 2017 - IPC E21C49/00 C10F5/02 C10F7/08 

FIELD: mining.

SUBSTANCE: in the method, the extraction area is divided into adjacent even-numbered and odd- numbered parallel entries with width equal to the distance between the tracks of the mining complex, and the length equal to the length of extraction area in near-contour part of the deposit, but not less than 50 m and not more than 100 m, starting from the first odd-numbered stage up to the last odd-numbered stage. After restoring the surface vegetable layer on the even-numbered entries of the bearing capacity which is sufficient for movement of the mining complex with its support thereon, the extraction of odd-numbered entries is carried out in retreat order. When the mining complex is moved from the boundary of the deposit into the depth (direct movement of the complex), the extraction of lump peat is performed from upper cohesive layer by auger device with packing and transportation of packs by means of rope conveyer to the pile located behind the deposit contour. At that, the length of the pile is not more than the width of the extraction area. The extraction of peat from the lower watered layer with formation of peat pulp is carried out in the reverse movement of the mining complex by a mechanic and hydraulic method with hydraulic transportation of pulp via the pulp line into geotextile water-separating containers located the process zone behind the deposit contour.

EFFECT: reduced costs for preparation and development of the deposit, increased recovery factor of mineral, elimination of costs for reclamation of the deposit after peat extraction.

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