FI94622C - Device for mixing stack compost - Google Patents

Description

94622

Apparatus for mixing open compost - Anordning för bland-Ning av stackkompost

The invention relates to an apparatus for mixing open compost, the apparatus comprising a bucket front loader, a horizontal feed screw at an angle defined by the bottom and rear wall of said bucket, an opening in the side wall of the bucket on the feed end side of the feed screw, and a motor for rotating the feed screw.

Patent applications FI-911658 and DE-2,353,789 disclose loading buckets with a transfer screw for unloading material taken into the bucket from the bucket through an opening in its side. If the transfer screw is operated at the speed required to treat the compost holes to throw the material through the air into the new hollow, the problem is that the material will vault into the bucket.

The object of the invention is to provide a device of the above-mentioned type in which said vaulting problem does not occur. This object is achieved by a device according to the appended claim, characterized in that the back wall of the bucket has a hydraulically reciprocating plate which is articulated at its upper edge and which, when moving, prevents the material from vaulting into the tapered space between the bottom and back wall of the bucket.

As will be apparent from the following description, the device according to the invention can be used in such a way as to make the maximum possible amount of compostable suitable for the compost treatment area. material.

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The invention will now be illustrated with reference to the accompanying drawings, in which Figure 1 shows a side view of a mixing bucket belonging to the device according to the invention and Figure 2 shows the same as seen from the front; Fig. 3 shows a side view of the device according to the invention in the first working step; Fig. 4 shows the same device in the second work step and Fig. 5 further shows the same device seen from above in the third work step.

The following structural solutions have been made to the bucket 2 of the front loader 1.

As can be seen from Figures 1 and 2, at the corner between the bottom 3 of the bucket and the rear wall 4 there is a feed screw 7 with a threaded ridge or flange 10 around the rotatable shaft 9. The shaft 9 is mounted at one end on the bucket body but its end pointing in the feed direction is free. On the side of this free end there is an opening 6 in the side wall of the bucket, from which, as it rotates, the screw 7 throws out the compostable material which has been taken into the bucket. The free end of the shaft 9 is conically tapered in the case shown. Attached to the bearing end of the shaft 9 is a transmission chain or belt driven by a hydraulic motor 8. The motor 8 is located outside the bucket and fixed to the rear wall 4 of the bucket. The motor 8 is powered by the hydraulic system of the front loader.

Inside the rear wall 4 of the bucket there is a plate 13 movable back and forth by hydraulic cylinders 14, which is articulated at its upper edge close to the upper edge of the rear wall 4. As it moves, the plate 13 prevents the material from vaulting into the tapered space between the bottom 3 of the bucket and the rear wall '4.

If a standard front loader bucket is used as a starting point, its rear wall and the rear parts of the side walls must be raised. In the case shown, a net-like or grating-like wall elevation has been used 5.

94622 3

The following describes the use and operation of the device with reference to Figures 3-5.

The compostable material is stacked in a mattress-like plane seam in 11 treatment areas. The height of the mattress 11 can be at most according to the lifting height of the front loader bucket 2. In this way, the largest possible amount of compostable material is made suitable for the treatment area when forming the open.

Thus, a normal front loader 1 is used as the basic machine, the bucket 2 of which has undergone the structural changes and additions described above. The processing of the compost pile 11 is started from the edge of the pile, from which it proceeds from the width of the mixing bucket 2 to the other end of the pile. The treated material moves to the side by the width of the mixing bucket 2 and at the same time makes a place or groove 12 for the material of the next run. The second run is carried next to the free groove 12 of the previous run, so that the material to be treated can leave the bucket 2 in the free space 12. This is continued until the whole compost mattress has been treated and moved in one direction by the width of the mixing bucket 2. This feature can also be utilized in the design of incoming and outgoing material streams, with the material moving as it is always in the same mouth from which it can be removed with the last mixing.

In the situation of Figure 3, the material to be treated is taken into the mixing bucket 2 from the bottom upwards, as is normally the case with a front-loading bucket. In Fig. 4 the bucket is raised and in Fig. 5 it is emptied in the upper position, whereby the screw 7 throws the material out of the opening 6 sideways. The compost is mixed and conditioned both by means of the screw 7 and by the material flying through the air into the new pit. By moving the plate 13, it is ensured that the material is not vaulted, but that the screw 7 constantly receives new material.

Claims (1)

1. Anordning for blanda compost in a stack, with an anchor-Ning omfattar en med en skopa (2) försedd framlastare (1), in the case of a transport screw (7) in the form of a ligature and a knife in the frame (2) botten (3) ) och bakvägg (4), en öppning (6) vid skopans (2) sidovägg pämatningsända belägen sida av transportkruven (7), och en motor (8) för att vrida transport skruven (7), kanne tecknad därav, att vid inre sidek av skopas bakvägg (4) finns en hydrauliskt (14) fram och till-baka rörbar skiva (13), som i sin övre kant är ledat fast och som vid rörande förhindrar materialets vvning i det avsmal-Nande utrymmet mellan skopas bottnet (3 ) and bakkäggen (4). • t · •