Theoretical foundations for calculation and substantiation of hydrotransport of sapropel

The proposed technology of borehole hydraulic extraction of sapropel under a layer of peat has no analogues, and therefore the establishment of quality indicators of sapropel pulp, parameters of pipeline transport and technical characteristics of equipment is of great scientific and practical importance. The calculation of hydroextraction of sapropel is carried out on a specific example, taking into account the actual conditions of occurrence of sapropel under peat and its general technical properties. It has been established that during the extraction of sapropel lying under a layer of peat at Gala-Kovalevskoye deposit, in order to achieve the required pulp consistency, it is necessary to add 3.4 tons of water per 1 ton of sapropel. The calculation of the actual value of the Reynolds parameter made it possible to reveal that, with the accepted initial data, a laminar flow regime of the sapropel pulp is observed. With an internal diameter of the pipeline of 0.2 m and a length of 1000 m, the calculated power of the generator supplying the mechanisms of the mining installation with electricity is 60 kW, and the total power of the pressure and suction pumps is 54 kW.

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