FI93983C - Process for the extraction of peat - Google Patents

Description

93983

Peat production method

The invention relates to a peat production method in which peat is raised while the peat is on ice.

The solution according to the invention is characterized in that the pieces of peat are cleaved from the frozen peat layer in the direction of the peat layers.

The peat in the bog grows in the layer every year and annual tumors can be seen in the peat as in the tree and 10 of them are hereinafter referred to as chips. The cuttings are like papers and the peat is overlapping papers that weaken as the degree of decay increases and are held together by the roots of the plants and the remnants of the roots. The dry or wet molten peat can be torn in the direction of the chips and cause the chips to separate from each other with a fairly even tearing surface. Instead, tearing perpendicularly against the chips gives a completely vague tearing surface.

The lust-like structure of the peat can be utilized in lifting the icy peat layer in the bog to the desired thickness. In the cleavage experiments performed, it was found that cleavage in the direction of the slits gives a sufficiently smooth cleavage surface, whereas cleavage perpendicular to the slits gives an uneven cleavage. The cleavage energy required is about one-third that perpendicular to the direction of the slats. 25 Lifting the frozen peat layer from the melt boundary is in the field of patent FI 75356. This method relates to a procedure in which only a part of the frozen layer is cut at a time in the direction of the slats, i.e. horizontally. The piece to be cleaved must be regular, this requirement being achieved by sawing the remaining layers in perforated grooves perpendicular to each other and of the desired depth at regular intervals and by splitting the piece off the base of the grooves in the direction of the slits. One or both of the grooves may be replaced by cleavage or other process to provide nearly vertical cracks in the peat.

2,93983

There is wood in peat in Finland. When wood enters the splitting surface in the direction of the chips, the wood is cut or a splitting blade puller is used so strong that it cuts across the wood.

5 A suitable piece size in the Oulu region for H2-H3 peat peat is a cube of 125 mm. It dries in summer as well as summer and withstands mechanical turning and collection. The pieces cut as ice are transported to a drying field, where they are applied to dry at about 500 m3 / ha. The pieces are turned and collected, for example, on 10 pieces of peat production machines. The piece size, drying, turning and collection have been tested with the smallest pieces made from a large piece of frost raised from the melt boundary. Drying dimensions of other peat species and their degree of decay have also been tested. About every other year, dry pieces can be collected at the height of Oulu at the end of May or at the beginning of June. In rainy summers no later than the end of June.

By lifting part of the frozen layer, the sorting of the peat can be done with the desired accuracy and the different peat qualities and their decay rates can be obtained separately. By lifting the peat as ice, pieces with an unbreakable structure of the natural bog are preserved.

The method can be used where there is or is enough frost. Lifting can take place in a drained or 25 natural bog.

The water discharges associated with the method depend on the drying field. The sawdust generated during possible sawing can be collected from the lifting field. When turning and collecting, some dust is released from the pieces, however: 30 fractions compared to the production of milled peat.

Claims (2)

93983 1. For use in the manufacture of pipes and tubes, the installation of pipes and tubes in connection with the manufacture of pipes and tubes, including the manufacture of pipes and tubes in connection with the manufacture of pipes and tubes. A method for producing peat, in which the peat is lifted while the peat is on ice, characterized in that the pieces of peat are cleaved from the frozen peat layer in the direction of the peat layer chips. A method for producing relatively regular pieces according to claim 1, characterized in that the surfaces of the piece of the desired size perpendicular to the chips are made by sawing, blocking or other process. 15 Patentkrav 2. A patent according to claim 1 is described as having a relatively small number of elements, which can be described as having a dimensional dimension, for example, in the case of a ring-shaped body. > *