FI90666B - Screening equipment for turf - Google Patents

Description

90666

KASVUTURVESEULAIAITTEISTO

The invention relates to a wheeled and transportable growth peat screening apparatus comprising a silo with a bottom conveyor 5, a screening device and conveyors for both the excess and the approved pulp.

In peat production, a lot of slightly decomposed peat is used, which contains a lot of wood waste, e.g. positions. 10 Production waste also uses waste from peat production.

. In conventional production, the bucket is lifted by a bucket loader into a silo of the screening equipment, which separates the stumps and larger pieces from the peat mass. The screened peat mass is then mixed with sand, lime and fertilizer as needed.

Conventional screening equipment is built at each production site and, after use, is dismantled for possible reuse. Growth peat production can be carried out on 20 very small peat bogs, but the establishment of production equipment is not profitable due to the small production volume.

The aim of the present invention is to provide an efficient production method also for small peat bogs and to enable the use of a very inhomogeneous pulp as a raw material. In addition, the invention seeks to provide an apparatus which is easily transported from one production site to another without compromising production efficiency. The characteristic features of the invention are set out in the appended claims. According to the invention, the processing of a very inhomogeneous genetic pulp requires a tiltable disc screen, by means of which the processing time in the sieve can be adjusted depending on the quality of the pulp.

With the apparatus according to the invention, the production of the growth peat mass 35 changes in that the disc screening device can also be used as a mixer, in which case in most cases all raw materials can be fed directly to the screening device, in which case no further processing of the mass is required. On the other hand, by constructing one of the conveyors pivotable in the same direction as the first 40 conveyors, the equipment can be easily and quickly transported 2 90666, whereby even quite small amounts of raw materials can be utilized. In this case, municipal compost waste is also possible.

The invention will now be described with reference to the accompanying drawings, which show a growth peat screening apparatus according to the invention.

Figure 1 shows a side view of the screening apparatus. principle

Figure 2 shows a top view of the apparatus of Figure 1.

Figure 3 shows in detail the fertilizer supply system.

15 In Figures 1 and 2, the growth peat screen apparatus is shown in its position of use. The second conveyor device 5 is pivoted in the opposite direction to the first conveyor 4. The apparatus is built on a frame-like frame 21 and the tractor can be connected to a drawbar 7. At the rear of the apparatus support wheels 6 are placed on articulated arms 20 9 and their height can be adjusted 13 and can be operated by a cylinder 14. By means of the articulation arrangement of the support wheels 6, the conveyors 4 and 5 can be oriented in the best way at each work site.

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The shafts of the conveyors and the rotating devices of the screening device are connected to a bevel gear mounted on the other side of the device, which is connected to the power take-off of the traction tractor by means of an articulated shaft. The tractor is also powered by 30 quick-acting hydraulic devices.

The bucket loader pours the inhomogeneous peat mass and other raw materials into a silo 1 with a belt conveyor at the bottom which takes it to a screen 3. This consists of a disc screen array 15 constructed to pivot about a joint 18 so that it can be tilted upwards. The direction of rotation of the discs is chosen so as to tend to convey the bases and other larger pieces to the second conveyor 5, and by adjusting the inclination of the disc screen 3 90666, the processing time can be extended. This is often necessary because the masses to be treated differ considerably.

The second conveyor 4 extends under the disc screen 15 and is constructed of a conveyor belt 12 which rotates through folding wheels 10 and 11. The first conveyor 5 is of a similar type, but it is constructed to pivot about the joint 19 on the pivot ring 20. Despite the articulation of the conveyor 5, the construction has become quite simple. With this reversible conveyor solution, the screening equipment 10 can be moved to another location quickly and effortlessly and put back into operation very quickly.

In Fig. 1, the fertilizer feeder 22 is shown in broken lines, which is shown in more detail in Fig. 3. The fertilizer feeder 22 comprises a tank with a belt conveyor 23 at the bottom, which is powered by a silo belt conveyor deflector. The belt conveyor 23 feeds the pulp to the first conveyor 4 according to the size of the feed opening adjusted by the door 26. Here, the fertilizer supply 20 is automated so that the sensor roller 24 is connected to this door 26 by means of a lever mechanism 25, whereby the thickness of the pulp passing by the belt 12 is transmitted directly to the door 26, which opens or closes according to the amount of peat mass.

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Claims (5)

4 90666 A wheeled (6) and transportable growth peat screening apparatus comprising a silo (1) with a bottom conveyor (2), a screening device (3) formed of a disc screen and conveyors (4, 5) for both excess and approved pulp, and wherein the screening device (3) ) is mounted to be tilted in the feed direction, and that the screen comprises means for turning the second conveyor (5) in the same direction as the first conveyor (4), 10 characterized in that the screen is provided with a fertilizer hopper (22) and a feeder comprising pulp flow sensing means ( 24, 25) and the associated dosing member (26). Growth peat screen device according to claim 1, characterized in that the second conveyor (5) is mounted on the pivot ring (20) and adapted to pivot substantially 180 ° from the direction of the drawbar (7), and that the conveyors (4, 5) and the screen device (3) ) the PTO shaft of the rotating devices is arranged on the side of the device to which the tractor can be connected in the operating position of the device 20. Growth peat screening device according to Claim 1 or 2, characterized in that the device is provided with height-adjustable support legs (13) and / or support wheels (6). 25 and actuators (14, 10) using these, whereby the lifting height of the conveyors (4, 5) can be adjusted by means of these. Growth peat screening device according to Claim 1, characterized in that a sensor roller (24) is arranged on the conveyor belt (12) to rotate on a lever, which is further connected to the door (26) of the feeder by means of a lever mechanism (25) and is thus arranged that the lifting of the mass by the sensor roller (24) causes a corresponding increase in the feed opening. 5 90666