FI76588B - MASKIN FOER FRAMSTAELLNING AV STYCKETORV / GRANULAT. - Google Patents

Description

76588

Machine for producing peat / pellets

The invention relates to a machine for producing lump peat / granules, in which machine the peat is pressed with nozzles or the like arranged at the end of the supply pipe by means of a transfer screw 5 to obtain a press.

Current production methods for peat and pellets are usually based on drying the peat in the field from which it was extracted. The work steps are combined in such a way that the same machine simultaneously removes, cultivates and spreads the raw peat on the field. The machines are used to form a compact from raw peat, which is intended to be applied as evenly as possible to the field. When the surface of the extrudates dries, it becomes hard and water-repellent. The entire production is dominated by 15 efforts to efficiently dry the extrudates.

Matrix1-based processing machines are mainly used to produce a compact smaller than the normal peat size. Due to the smaller diameter of the compact, it dries faster than normal lump peat. The typical diameter of the peat extrudates 20 is 50 ... 80 mm and the granule 10 ... 30 mm.

The problem with current production methods is the uneven size distribution of the extrudates obtained. The rapid drying of small pieces cannot be fully exploited because the slow drying of larger pieces delays the harvest. One of the problems caused by the 25 existing machines is the generation of crushed stone. A large fracture area and sharp corners are created at the breaking point of the extrudates, which are partially ground away when the extrudates are processed. In this case, part of the mass is lost.

It is an object of the present invention to provide a new and improved machine for producing peat / pellets.

The main features of the invention become clear from the appended claim 1. In the arrangement according to the invention, firstly, uniformly sized extrudates are provided. In this case, the previous shorter optimal crop rotation is achieved. Another significant advantage of the invention is due to the method of cutting the pieces. As the pieces are separated from the press stream coming from the nozzle by throttling, the ends of the pieces taper and round. In this way, considerably fewer fracture surfaces are created in the pieces, and the production itself crushes the extrudates 2 76588 only slightly. Claim 2 shows an embodiment of the invention in a machine with a matrix plate.

In the following, the invention will be illustrated by way of example with reference to the accompanying figures, which show an embodiment of the invention.

Figure 1 shows a rear view of a peat machine with a matrix plate

Figure 2 shows a partial section of a piece press device attached to a matrix plate.

10 Figure 3 is an end view of the die plate and the piece press devices mounted thereon

Figure 1 shows the general arrangement of a palatur machine equipped with a disc mill. The disc mill throws the raw peat it has raised onto the transfer screw 2, which presses it through the holes in the matrix-15 into the belt 1 into a compact. The extrudates are cut into uniform pieces by throttling the nozzle to produce a compressive flow intermittently.

The nozzles consist mainly of holes made in the matrix plate 1. The hole is extended by a tube 7 welded to the outside of the matrix plate 1, to which a rubber tube 3 forming a flexible channel part is attached, Fig. 2. The press devices 4 are mounted around this rubber tube 3. A mandrel 10 is placed in the hole, which forms a central hole in the flow through.

Figure 3 shows the arrangement of the press devices at the end of the matrix plate 1. The rubber tube 3 is pressed periodically by three throttle arms 5. These are connected to each other by control levers 6, whereby the throttle is made to take place symmetrically. The clamping devices 4 are operated by means of a cam 9 mounted on the end of the transfer screw 30, which moves the choke arms 5 through the counter cam 8.

Claims (3)

3,76588 A machine for producing peat / granules, in which the peat is pressed by means of a transfer screw through holes or the like arranged at the end of the supply pipe (2) 5 to produce a press, characterized in that at least one nozzle comprises a rubber part or other flexible material ) and press devices (4) adapted to choke this channel part (3) to cut the presses. Machine with a matrix plate (1) according to claim 1, characterized in that the press device (4) consists of throttle arms (5) and guide levers (6) pushing the flexible duct part (3) hinged into the matrix plate (1) on different sides and that the screw shaft the end includes a cam (9) for operating the choke arms (5). Machine according to Claim 1 or 2, characterized in that the mold-forming nozzle comprises a perforated mandrel (10) which forms a longitudinal central hole in the mold.