SE1051063A1 - Method and apparatus for cutting peat production - Google Patents

Description

10 15 20 25 30 SHORT DESCRIPTION The object of the present invention is to provide a method and a apparatus for implementing the method where the above-mentioned disadvantages can be eliminated, i.e. the number of machines, work phases and spills can be minimized.

The object of the invention is achieved with a method and a peat machine, which are characterized by what is stated in the independent claims. The preferred the embodiments of the invention are presented in the dependent claims.

The invention provides a number of advantages. For example. the use of milling peat, which has a lower calorific value and energy density than piece peat, thanks to this invention to some extent replaced by the use of peat. The advantages of the invention are undeniable, as the need for total energy consumption and the number of needed for production can be reduced. The major disadvantages, ie. dust and fire risks associated with milling peat, can be eliminated almost completely.

A major advantage of the present invention is that it becomes possible and profitable and to utilize smaller harvesting areas due to less equipment and increased efficiency. l In this context, it can also be stated that the production of peat does not is as dependent on the weather as the production of milled peat. The present invention further increases the independence of peat production due to unstable weather conditions. the. With this invention, the disadvantages associated with current peat production methods are significantly reduced or completely eliminated.

The present invention significantly reduces the number of products steps, such as turning, scraping and sieving, the total energy consumption the energy consumption used for the extraction process, and the time spent expected for the extraction per unit of energy. On the basis of successful test runs with a prototype, the extraction process for piece peat can be renewed and simplified. Flexible of the extraction process, the overall efficiency and environmental friendliness are improved considerably. What has been stated above means that economic competition the capacity for piece peat rises to a new level in comparison with other forms of energy and without tangible support from society.

RlTNlNGAR In the following, the mode of operation according to the invention is first explained. really and then in more detail according to the attached drawings, there 10 15 20 25 Figure 1 presents a piece peat extraction machine according to the invention; Figure 2 shows a recovery screw, bearing and the rotating claws structure; Figure 3 shows the structure of an extraction pipe, outlet pipe and an exhaust pipe. ningslucka; Figure 4 shows the structure of hydraulic cleaning and opening tubes, and the cutting device and its attachment; Figure 5 highlights the method made possible by the apparatus; Figure 6 shows an embodiment of a grid roller; Figure 7 shows an embodiment of a method; and Figure 8 shows the execution of the method.

DESCRIPTION OF SOME EMBODIMENTS Tone / soil selected for peat production is first cleared of trees, stumps bar and visible stones. Peat is lifted out of the bog by using a screw that pulls the peat into the extraction pipe in a uniform flow. At the other end of the screw is a counter- walking thread arranged to reduce the pressure and wear on the rear end of the extraction tube. In this way, the working pressure is transferred to and formed at the outlet pipes for peat. Inside the extraction tube, helical blades are arranged as together with it the outer edge of the rotating screw crushes possible branches and twigs before they reach to the outlet pipes. For additional safety, at each location for each starting point pipe discharge claws are attached to the shaft of the extraction screw. The discharge claws are there task to prevent any debris from entering the outlet pipes.

However, if for some reason debris clogs the outlet pipes, they can the hydraulic opening and cleaning tubes are guided into the outlet pipes for cleaning pipes on any obstacles. The massive opening and cleaning tubes can press the obstructing material from the outlet pipes back towards the screw. At the same time, when the purge and purge tubes are close to entering the outlet pipes, an exhaust door on the opposite side of the outlet pipes, which allows all debris to leave the appliance via the discharge door. 10 15 20 25 30 35 The discharge claws rotating into the extraction tubes guarantee that everything residual debris is removed through the discharge hatch. The outlet pipes can be cleaned in this way way that the driver does not have to leave the tractor cab or stop the extraction process.

The extraction tube also has a bearing assembly at the front end, which extends the life of the piece peat machine. A mounting frame for storage prevents rhizomes and stones from entering the extraction screw. The mounting frame for the storage also acts as a guide slide, when the device goes to the working depth and travel there. It also prevents the device from being damaged when it hits obstacles.

Peat squeezed through the outlet pipes can be cut off with a cut-off to pieces of desired length and then folded onto a belt conveyor or correspondingly, which then transfers the pieces to a suitable distance from the extraction apparatus. the rate of a peat field stack. This process guarantees that piece peat can be is also obtained from small areas manifold compared to the current extraction methods. In addition, this new field stacking method significantly accelerates the production of piece peat and improves quality. In this method, the peat does not need at all turned over and scraped on a field containing dust and contaminants. In this the method produces pieces of peat that are stored directly to the piece of peat field stack.

On top of the first produced / extracted and already naturally dried out the peat layer, place a new layer of peat until it is airy and dries quickly clean peat field stack is complete. Thus, the pieces of peat remain on top of each other and dries out completely without any scratches and twists. Therefore, all screens phases are also avoided because foreign particles are not mixed in the peat.

By means of that invention, peat can be transferred at the beginning of the extraction process. the process to a peat field stack, which is thus achieved with only one working phase and a machine. Compared with the traditional extraction method, several working phases can left as unnecessary.

With this invention, peat is produced directly to a variety of overlapping layers and the field stack formed thereby can preferably be directly collected on the wheels by means of a reloader and then transported to the nearest mast peat stack or to an incinerator. This new production method it thus contains only two work phases, ie. the production of peat pieces directly to a field stack and the reloading of the pieces to a transport unit.

Figure 1 shows an embodiment of a piece peat extraction machine according to the invention, wherein a recovery pipe or pipe casing 2 is attached to a steel beam frame 1, and wherein inside the extraction tube 2 a bearing-mounted recovery screw 3 is arranged. The pipe 10 15 20 25 30 has two functions. On the one hand, it covers the screw and thus protects it against example stones. On the other hand, the pipe cooperates with the screw in such a way that the extraction tube determines the space where the extraction screw can rotate and obstructs the peat from falling off the screw. On the lower part of the extraction tube there is a gear bracket and a protective frame 4 arranged, which also functions as a guide slide and which protects the screw 3 from damage.

The extraction tube 2 is mounted to the steel frame 1 at an angle of about 35 degrees with respect to the land. At the lower end of the extraction tube 2 there is an extra door 5, which can be opened with a hydraulic cylinder, in order to increase the feed of peat to the screw 3 if necessary. At the other end of the recovery screw 3 is a gear lock mounted to transfer the force required to the recovery screw 3. The shaft of the screw is provided with a roller chain-gear joint 7, which improves the shaft endurance. The power coming to the gearbox 6 is preferably transmitted by a link shaft 8 from the power source such as a tractor.

The hydraulically acting opening and cleaning tubes 9, discharge the hatch 10 and the extra hatch 5 can be controlled from the tractor cab. A bearing mounting row cutting unit 11 operates automatically by means of the kinetic energy from piece peat. That is, the cutting unit may contain a certain number of blades such as are arranged at a certain angle to each other in a rotating structure. When the peat comes out of the exit pipes, it pushes one of the blades into the cutting which causes the unit to start rotating and therefore the next blade can cut off the the turf. The pieces of peat are normally 50 to 200 mm long and have a diameter of 40 to 80 mm. The length of the pieces can be adjusted by changing the number of blades in the cut. unit and the diameter of the pieces by using outlet pipes with a other diameter.

A belt conveyor 12 or the like is preferably attached during the passage tubes 13 and the cutting unit 11 by means of two horizontal pins 14, one of which is provided with a vertical pin, which is provided with a hinge. With the help of walking the iron pin, the belt conveyor can be turned to the side and locked during road transport. The height of the drop end of the belt conveyor is adjusted with a winch 15 and a mooring rod 16.

In this way, the pieces of peat can be guided vertically to the desired location. Control of the pieces in the longitudinal direction can be improved by providing the conveyor with a triangular plate or similar. The belt conveyor can be provided with guide slats, whereby piece peat the pieces coming out of the outlet pipes are evenly distributed on the conveyor belt. Using 10 15 20 25 30 35 the slats keep the pieces in the right track on the belt conveyor. Thereby, the pieces can be distributed. read evenly on the peat field stack.

Use of the belt conveyor 12 prevents debris from the bog mixed in the peat because the peat is set aside directly as a layer to a place from where it is uploaded. Thus, there is no need to turn, scrape and sift piece of peat on the moss field that contains contaminants. Pollutants, such as stones and rhizomes, traditionally degrade the energy properties of the peat.

The winch 15 can be used mechanically or hydraulically. The carrier's 12 power source can be a hydraulic motor 17, with which the speed of the conveyor 12 can also be easily adjusted away from the cab, if needed.

Figure 2 shows the structure of the recovery screw 3, the bearing assembly and the rotating claws 21, where the recovery screw 3 has bearing arrangements at both ends for to improve the functional reliability and prevent damage to the screw. Screw 3 consists, as the figure shows, of a grinding blade 18 which bypasses the outer edge of screw 3, a recovery thread 19, and its counter-thread 20 and hard steel claws 21 on the shaft 3 of the screw 3 and arranged between the thread 19 and the counter-thread 20. When hoof, the discharge claws 21 can be provided with mixing wings 22 or equivalent. ln- incoming peat in the extraction pipe is directed into the non-threaded section and pipes 13 under high pressure, mixed due to impact of the exhaust claws and mixed and pressed through the outlet tubes 13 to a belt conveyor 12 or similar.

Figure 3 shows the structure of the recovery pipe 2, the outlet pipes 13 and the discharge hatch 10, where the recovery pipe 2 is provided with outlet pipes 13, which are mounted at an angle that can be about 35 degrees from the center line of the extraction tube on so ensure that the pipes are in line with the conveyor 12. The frame assembly of the outlet pipes 13 can be firmly arranged to the extraction tube 2. The frame-mounted tubes are provided with a flange, to which a series of outlet pipes of different diameters and shapes can be preferred desvls attached.

The extraction tube 2 can also be provided with spiral-like hard steel blades 24, which extend to the opposite thread of the recovery screw 3 and are stable mounted on the inner wall of the extraction tube 2. The extraction tube 2 blade 24 and the blade 18 grinds together the waste that enters the extraction pipe 2. When an exit pipe 13 or some outlet pipes are blocked, the discharge door 10 is opened simultaneously with the aid of a hydraulic cylinder, when the opening and clearing tubes begin to move towards the thus, the material that the opening and cleaning tubes 9 have 10 15 20 25 30 removed from the inside of the outlet pipes 13 fall away from the unit via the discharge hatch and 10.

Figure 4 shows the structure of the opening and cleaning tubes 9 and the cut-off unit 11 and its attachment. The opening and cleaning tubes 9 are preferably firmly attached to the steel frame 25 of the control unit, which is capable of moving by means of a counterpart of the control unit and the hydraulic cylinder so that the the cleaner 13 can be cleaned and that the tubes 9 can be returned to the starting position without the driver need to leave the tractor cab or stop the extraction process in any way. In practice this can be done so that when the driver notices a blockage in one or more of the exit pipes, he can press a control button in the cab. This causes the discharge tubes 9 quickly enters and exits the outlet pipes 13. This cleaning operation can in practice be so fast that there is no reason to stop the extraction of piece peat during cleaning.

The blades 11 of the cutting unit are preferably attached to link arms 26 which are attached to the frame 25 of the control unit. When the discharge tubes 9 begin to move themselves, the link arms 26 lift up the cutting blades 11 so that the discharge tubes can move without hindrance. The cutting unit 11 is stored at both ends and the function based on the kinetic energy of the peat. When the cutting blade rotates around its own axis, it cuts the peat into pieces of the desired length before the peat falls on the conveyor. The desired length of the pieces and thus the drying of the piece speed can be adjusted by changing the number of blades and the size or diameter of outlet pipes 13.

Figure 5 shows a harvesting method applied to a machine where the belt the porter 12 or the like is preferably attached to the frame and under the exit tubes and the cutting unit of the piece peat machine. The length of the belt conveyor can be adjustable. One way to achieve this is to let the belt conveyor rotate around three points, the positions of which are adjustable with respect to each other. When the maximum the length of the conveyor is desired, the three points can be aligned. If a shorter conveyor is desired, the three points can be moved to a shape of a triangle. The height of the drop end of the belt conveyor can be adjusted during production with a winch 15 and a mooring bar 16. Thereby, peat can be guided to the desired place in the field stack.

Alternatively, the length of the conveyor can be fixed. Then the piece of peat can led from one side of the stack over the top to the other side of the peat field one when the piece peat machine is close enough to the piece peat field stack. 10 15 20 25 30 35 This invention makes it possible to harvest from the same teg to the same field stacks several times in such a way that these several overlapping layers gradually form a dry and clean field stack 27, which can preferably be collected with a reloader directly to a transport unit and transported to a peat stack or to the place of use.

Figure 5 shows four layers of piece peat 31 transported to the field stack.

As the figure shows, the peat in the three lowest layers is reduced in size evenly. brought with the just extracted fourth and highest layer of piece peat. When the piece peat is dry extends, the pieces move and space is formed between adjacent pieces in the same layers and between the pieces in different layers. Thus, by letting the peat dry out naturally about 3 to 6 days, preferably less than two weeks, before laying one new layer of peat on piece peat field stack, an airy and well-ventilated field is obtained. stack.

The base of the peat field stack 27 can be formed to have a grid 30, which extends transversely to the tip of the field stack. Rainwater can thus run along the grid on the sides of the field stack in the direction away from the tip. In this way has even the lowest layer of piece peat good drying conditions even in rainy weather derlek.

Figure 6 shows an embodiment of a grid roller 28, the metal sections 29 of which forms grids on the field stack base, when the base of the layers is formed. The grille sounds rainwater pass the base so that the lowest piece peat layer does not have to be on a wet surface. RE- then after a couple of hours after rolling, the base surface and the grid become harder and form one water-repellent surface.

The field stack method will now be described with reference to Figure 7. I 702 forms the base of the field stack. Before this step can be a production area or teg cleared of trees, rhizomes and exposed stones. The base can have a width of 2 to 8 me- ters, preferably about 6 meters, for example. The fall rows of piece peat can be approx 50 cm wide. A layer of peat refers to the coverage of peat moved on the field. the stack with fall rows. A layer can here refer to piece peat placed on one or on both the sides of the peat field stack.

Usually the width of a tile is about 20 meters and thus, in this case, emplet, remains 14 meters of the character's width for efficient production. The widths of field the stack or of the tea is not limited to the examples shown above. The field stack to which piece peat layer is collected, is thus narrow in comparison with the total width of against, i.e. the width of the field stack is less than half the total width of the field. gene, can also be less than a third of the total width of the tea. The field stack 10 15 20 25 30 is preferably located in the middle of the toe, but may alternatively be elsewhere depending on the characteristics of the characters.

The length of the sign depends on the area of the bog. There can be a variety of tea- go on the bog and they can be separated from each other by ditches. The length of the field stack is essentially the same as the length of the production field. At the ends of production fields, space can be left so that a tractor can drive around the field stack.

The field stack can thus be slightly shorter than the production field.

The base of the field stack can first be leveled with a leveling screw, which evens out the base and can possibly make the base sloping in the direction of the ditches in this way that the highest point of the base is in the middle of the base. Finally, the base can be rolled with a grid roller so that grids are formed on both sides of the base, where the grids then allow water pass the base. The rolled surface of the base hardens and becomes water-repellent already a few hours after the treatment. In this way, an optimal drying base is formed for drying piece peat.

The base of the field stack can have a form of slightly sloping saddle roof or the like.

During the construction and leveling of the base on which the first production layer of the piece of peat field stack from the tea is produced, there can be a slope of at least 5 cm / meter on both sides of the base so that the drainage of rainwater is ensured and that the pieces dry out as quickly as possible regardless of the weather. Alternatively, it may be The first layer of peat is collected on a flat base, in which case the lowest layer of piece peat may not dry out as well as the other layers placed on top of it bottom layer.

In 704, peat is extracted from the bog. In 706, peat is squeezed into the outlet pipes. IN 708 peat is cut into piece peat. In 710, a first layer of piece peat is transported on the base, so that it forms the first layer of the peat field stack. Extraction of peat according to the method can be carried out on an area comprising tea excluding the area that covered by the field stack.

In 712, the first layer of peat in the field stack is allowed to dry out naturally under the influence of sun and wind without turning and / or scraping.

In 714, which may occur after 3 to 6 days, preferably for two weeks. or, after the recovery of the previous layer, the following layers are recovered and transported of peat on top of the previous layer. The just extracted layer of piece peat as is on top of the previous layer of peat in the field stack is then allowed to dry out some days before the addition of a new layer of peat to the field stack. 10 15 20 25 30 35 10 The above steps can then be repeated a number of times during the harvest. songen. The number of layers collected from the tea can be 2 to 16, for example. The it must be noted that when piece peat is collected to the field stack, a water repellent is formed surface already after a few hours. As the drying process progresses, the size of the piece is reduced.

When there is a plurality of layers in the stack, the pieces create dehydration and movement a structure with space between the pieces. The field stack that has layers of peat and dries out in a natural way and thus automatically becomes very well ventilated. In themselves the higher the number of layers, the better the conditions for dehydration. IN the method described above affects only the lowest layer of peat soil surface. l 716, at the end of the harvest season, pick up peat (the layers) that have dried out naturally in the field stack, ie, transhipped for transport to a storage stack or an incineration plant. Natural dehydration refers here to dehydration during effect of sunshine and wind only. There is no need for scraping and turning of peat peat. Figure 8 illustrates the implementation of the method. It shows one peat production field 850 with ditches 852, 854 on both sides of the production field.

Peat is collected into a peat field stack 862, which may be substantially in the middle of the production field 850. The peat field field stack 862 is narrow compared to the total the width of the production field 850. The field stack has substantially the same length or is slightly shorter than the production field. The base of the peat field 862 may have a base with a tip 856 and at least partially inclined sides 858, 860. The inclination allows rainwater to flow away from the peat pile to the bog and on towards the ditches 852, 854

Figure 8 also illustrates the movement of the tractor performing the extraction of piece peat. The tractor is shown in 4 different positions from 854A to 854D. In position 854 is the piece peat machine near the piece peat field stack and the belt conveyor can be in its short design. Peat can be transported to the side that is closer to the tractor or over the tip 856 to the other side of the field stack. In position 854B, the machine is near an edge of the production field. Since the distance to the field stack 862 is long, the belt conveyor must have its maximum length.

Position 854C highlights the situation where the machine goes around the field stack from one side to the other. In position 854D, the machine operates on the other side of the stack in positions 854A to 854C and the working direction is indicated by an arrow in the front of the machine.

Thus, the method and apparatus refers to the production of piece peat from one production area. The production area can be a rectangular tile with a width of 10 15 20 25 30 11 ka 20 meters, for example, and limited by ditches on both sides of the toe. The length of the production field can be from tens of meters to several kilometers.

Extracted peat from the tea is transported to a peat field stack, where the piece peat is allowed to dry out naturally, ie. without scraping and turning.

The piece of peat field stack can be placed in the middle of the toe, for example. Thus, can the work machine work around the field stack and remove the extracted peat from both sides of the field stack to the field stack. The field stack is narrow compared to the total the width of the toe, i.e. the width of the bearing base is less than half or less than one third of the tea width.

The field stack may have a base formed in the form of a ridge with a tip and at least partially inclined sides. The angle of inclination can be 2 to 10 degrees.

Each of the sides of the field stack can be provided with grids which extend itself transversely to the tip. Thus, rainwater flows away from the base and collects load piece peat on the base has optimal drying conditions.

New layers of peat can be collected for the field stack at intervals of some days, for example, depending on the weather conditions.

The machine that performs peat production has a screw to extract piece peat from the production area. The machine is also equipped with a belt conveyor which is configured to transport just won piece peat to the warehouse base.

The machine may have devices for adjusting the belt conveyor to bring piece peat to the field stack from different distances between the machine and the stack. This can be performed by adjusting the length of the belt conveyor.

The machine can also be configured to adjust the belt conveyor. height in such a way that a piece / can be folded to the field stack from a short falling distance between the belt conveyor and the top surface of the field pile of piece peat. In this way breaking of the peat is avoided when it is felled on the stack. The carrier's fall end for piece peat can be adjustable in height with the help of a winch and a mooring bar. In one embodiment, a piece peat machine is provided which comprises an winding tubes encapsulating a recovery screw comprising a thread and a counter-thread for the same, the machine further comprising an outlet pipe which allows the peat emanates from the extraction pipe. On the shaft of the extraction screw between the extraction threads and the counter-thread, on the non-threaded section of the screw, can be a discharge claw be positioned in the same position as the outlet pipe, which discharge claw is configured crushed and remove debris from the end of the outlet pipe. Thus, the output rotates 10 15 20 25 30 12 drain clone along with the screw and clean the end of the extraction tube on each rotation cycle.

In one embodiment, a piece peat machine is provided which comprises an winding tubes encapsulating a recovery screw, the machine further comprising one outlet pipe that allows piece peat to exit from the extraction pipe. Additional includes the piece peat machine an emptying and cleaning tube that can be inserted into the outlet pipe to remove all obstacles therein. The machine may comprise a discharge hatch in the extraction which allows the obstruction to exit from the extraction pipe, which opens the the opening door can be coordinated with the operation of the outlet and cleaning pipes so that operation of opening and cleaning tubes is configured to trigger the opening of the discharge hatch.

In one embodiment, a piece peat machine is provided which comprises an winding tubes encapsulating a recovery screw, the machine further comprising one outlet pipe that allows piece peat to exit from the extraction pipe. The piece peat machine further comprises a rotating cutting unit for cutting cutting peat which is discontinued from the exit tube to pieces, where the cutting unit is configured to rotate on a base of the kinetic energy from piece peat. Thus, falling piece peat rotates the cutting which has a variety of leaves.

The piece peat machine may comprise grinding blades positioned into the extraction tube, and a recovery screw, to the axis of which a recovery thread and its counter threads are installed.

In the piece peat machine, on the shaft of the extraction screw between the extraction threads and the opposite, exhaust claws and mixing blades of hard steel may be attached. touch the shoulder.

The piece peat machine may include an extra hatch in the extraction pipe for increased feeding peat and a discharge hatch for the removal of waste and for service. In the piece peat machine, the extra hatch, the discharge hatch, and the the cleaning and cleaning tubes must be remotely controlled so that it is not necessary to interrupt the recovery process. In the piece peat machine, the piece peat guide conveyor can be pivotable to the side. and lockable with a locking pin during transport.

In the piece peat machine, the lower end of the extraction pipe may be seen with a fastening device and protective frame, which preferably operate as a guide sled or similar. 13 It is obvious that the invention is not limited to those presented above embodiments, but it can be modified within the scope of the claims.

Claims (14)

10 15 20 25 14 Patent claims Production method for piece ton / comprising: - extraction (704) of peat from a peat production field by using an extraction screw (3) arranged in an extraction pipe (2); - pressing (706) of the recovered peat into exit pipes (13) arranged at the extraction pipe (2); cutting (708) of the pressed peat coming out of the outlet pipes (13) into pieces of peat (31), - characterized in that the piece of peat (31) is transported (714) using a belt conveyor (12) or the like which extracted from different distances (854A-854D) on the peat production field (850) to a piece peat field stack (862) so that the just extracted piece peat is carried on top of previously extracted and without turning and scraping dried piece peat. Method according to claim 1, characterized in that the piece peat (31) is transported to a field stack (862) which is substantially of the same length as the peat production field (850). A method according to claim 1, characterized in that the peat (31) is transported to a peat field stack (862) which is narrow compared to the width of the peat production field (850). A method according to claim 1, characterized by: - recovering peat (31) from both sides of the peat field stack (862), which is located substantially in the middle of the peat production field (850); and - transporting the peat (31) extracted from both sides of the peat field stack (862) to the peat field stack (862) located substantially in the middle of the peat production field (850). Method according to claim 1, characterized by: - transporting the just extracted peat as a layer of peat (31) to the peat field stack (27) containing one or more previously recovered and naturally dried layers of peat (31). Method according to claim 1, characterized by: - transporting the just extracted piece peat to the piece peat field stack (862), which has a ground base formed into a ridge with a tip (856) and sloping sides (858, 860). Method according to claim 1, characterized by: - transporting the just extracted peat to the peat field stack (862), which has a ground base formed into a ridge with a tip (856) and sloping sides (858, 860), and was and one of the sides has grids (30) extending transversely to the tip (856). Method according to claim 1, characterized by: - transporting the just extracted peat (31) on top of peat in the peat field stack (27), which peat has dried out naturally in less than two weeks. A piece peat extraction machine, comprising - an extraction screw (3) for extracting peat from a peat production field (850), the extraction screw (3) being arranged in an extraction pipe (2); outlet pipe (13) arranged to the extraction pipe (2) for pressing the peat; and - means for cutting (11) the pressed peat coming out of the exit pipes (13) into pieces of peat, characterized by: - a belt conveyor (12) or the like configured to transport the just extracted peat to a piece of peat field stack (862 ); and - means for regulating the length of the belt conveyor (12) or the like for transporting the just extracted peat to the peat field stack (862) from different distances (854A-854D) between the machine and the peat field stack (862) so that the just recovered piece peat is transported on top of the previously recovered piece peat. and without turning and scraping dried peat. 10 15 _20 16 The piece peat extraction machine according to claim 9, characterized in that the machine comprises means for adjusting the height of the belt conveyor (12) so that the piece peat can be deposited on the piece peat field stack from a short falling distance between the belt conveyor (12) and the piece peat field surface (862). A piece peat machine according to claim 9, characterized in that the machine comprises a recovery pipe (2) which houses a recovery screw (3), comprising a thread (19) and a counter-thread (20) for said thread (19), the machine further comprises an outlet pipe (13) for allowing the pressed piece peat to come out of the extraction pipe (2). Part peat machine according to claim 11, characterized in that on the axis of the extraction screw between the extraction thread (19) and the counter-thread (20) an emptying claw (21) is placed at the position of the outlet pipe (13), which emptying claw (21) is configured to remove waste from the end of the outlet pipe (13). A piece peat machine according to claim 11, characterized in that the machine comprises opening and cleaning tubes (9) for removing obstruction from the outlet pipes (13). A peat machine according to claim 9, characterized in that the machine comprises a rotary cutting device (11) for cutting the peat into pieces of peat (31), which cutting device (11) is configured to rotate on the basis of the kinetic energy of the peat (31). ).