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The results of theoretical and experimental studies on the creation of a screw press composite mouthpiece screw press for 3D-forming of peat pieces of a tubular type in the field for intensifying the process of field drying of material in a complex mechanized pit are presented. The main purpose of the study was to substantiate the geometric and design parameters of the screw press composite mouthpiece of the spread machine for the production of peat-agglomerated products of the tubular type. The parameters of the mouthpiece are selected based on the geometric characteristics of the peat pieces. An increase in moisture loss during drying of peat-agglomerated products is provided by forming a peat piece in the form of a thick-walled pipe made of a peat raw materials composed of low and high decomposition degrees in a ratio of 1:3. Additive production of polymer-fiber peat composites by extrusion allows to produce products with improved mechanical properties in comparison with non-reinforced raw materials. The vertical arrangement of the peat tubular piece on the drying field allows to increase the loading of the field area by 10 %, increase the convective heat supply to the piece and reduce the contact coefficient of the piece with the field by three times in comparison with the peat spreading of the pieces in the form of a horizontal tape. Based on the analysis of the shape and size of the agglomerated products, the design of a screw press composite mouthpiece consisting of two conditional molding zones of various configurations has been developed. The article presents a parametric analysis of the volumetric productivity of a screw press with a composite mouthpiece of a tubular type, the energy intensity of mechanical processing is determined, the degree of mechanical processing of peat raw materials is estimated with the optimization of the screw parameters for the production of agglomerated products of a tubular type.

The innovative technology of peat extraction promoting power and resource-saving is offered. Completeness and complexity of peat field useful components extraction are provided on the basis of the nature protection principles of rational environmental management. Strip mining is the mining of a relatively flat field. Preparing the area after its drainage involves a basic series of technological procedures: collecting of wood wastes and removing to the storage, deep milling of the top layer; small wood residues collecting and removing to the area; field surface leveling and profiling (7 peat machines). Preparing the area after its drainage with the excavation of the top layer involves another series of technological procedures: collecting of wood wastes and removing to the storage, deep milling of the top layer; collecting and removing to the storage material for the top layer; field surface leveling and profiling (5 peat machines). In the proposed flowsheet with deep peat milling the top layer is loosened and mixed (roots of trees, shrubs, parts of grass and moss vegetation, woodchips, peat of small decomposition degree). Then the whole layer is removed from the peat field for special treatment. For peat production, there is an undisturbed peat deposit surface, clear of a waste layer.

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