Chemistry: molecular biology and microbiology – Apparatus – Bioreactor
Patent
1994-07-29
1996-12-31
Beisner, William
Chemistry: molecular biology and microbiology
Apparatus
Bioreactor
366235, 220287, C05F 902
Patent
active
055893880
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention concerns a hot-composting apparatus meant for small-scale households and to be used out doors including a drum with an internal composting space, the drum can be opened and closed for charging the drum with mass to be composted and/or removing the mass, and the drum comprises a heat isolated casing wall having a form of a polygon and heat isolated gable walls, from which the drum is supported onto any suitable support frame for rotation around its geometric longitudinal axis.
BACKGROUND OF THE INVENTION
A composting apparatus of this kinds is previously illustrated in the published EP patent application 210 382 and in U.S. Pat. No. 3,966,415. Disadvantages of constructions according to these publications are among other things, the their use in winter, when availability of refuse other than household refuse is decreased is very difficult, because the drum includes just one single department and the drum walls are air penetrable in a remarkable extent, therefore there is inside the drum an unnecessary large air space and an unnecessary high air ventilation, which in a combination tend to decrease the internal temperature of the apparatus, whereby there is a risk of total standstill of the composting process.
SUMMARY OF THE INVENTION
The object of the present invention is to eliminate disadvantages of the known composting apparatuses and to provide an improved composting apparatus. Especially the object of the present invention is to certify a continuous composting process during all seasons.
According to the present invention these objects have achieved with the composting apparatus mentioned in the beginning, the said apparatus having a combination of characterizing features below: advantageously of sandwich-construction, openable and closeable air defile for conveying air to be needed for maintaining microbe actions into the composting space, which has a form corresponding substantially the polygonal form of the drum, and which divides the drum into departments in a plane, which is essentially perpendicular in relation to its geometric longitudinal axis, element intermediate wall element, which can be shifted in a direction of the geometric longitudinal axis of the drum to any optional distance from the fixed gable walls, and which is perforated or provided with an optional amount of air defiles for conveying air therethrough from one composting department into another, in two parts, which cover substantially forms one section of the casing wall, and axis of the drum are selected, such that the adjacent edges of the cover parts meet the intermediate wall unit.
According to one advantageous embodiment of the present invention there exist below one of the two cover parts moveable plate elements, their amount corresponding to the amount of moveable intermediate walls, a free edge of the said plate element is meant to be positioned such that it meets the edge of the intermediate wall shifted to an optional location between the fixed gable walls.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is described In the following in an exemplatory way more precisely by means of one advantageous embodiment thereof with reference to the accompanying drawing, wherein
FIG. 1 illustrates in general a perspective view of the drum of the composting apparatus,
FIG. 2 is a cross-section view along line II--II of FIG. 1,
FIG. 3 illustrates a part of the drum of the composting apparatus as the cover open,
FIG. 4 illustrates as parts a support leg of the composting unit according to the invention and an interposing support for joining a pair of the support legs with each other, and
FIG. 5 illustrates as assembled one support leg of the composting unit according to the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT
As can be seen from FIG. 1 the composting apparatus include the drum 1,2 having a openable as well as closeable cover 6 in two parts for charging the drum with mass to be composted and/or for discharging the mass from there. Inside the drum exists the compos
REFERENCES:
patent: 913399 (1909-02-01), Kilpatrick
patent: 1655144 (1928-01-01), Hallgarth et al.
patent: 1721132 (1929-07-01), Orthwine
patent: 3837810 (1974-09-01), Richards et al.
patent: 3966415 (1976-06-01), Chester
patent: 5292637 (1994-03-01), Bohnensieker
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