JPH09141234A - Organic waste fermentation treating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the condensate of the steam generated by fermentation from dropping into a treating vessel and to normally execute fermentation by microoganisms without trouble by constituting the cap of the treating vessel to a conical shape or domed ceiling shape and providing the peripheral part of the cap with a trough part for a sump. SOLUTION: The cap 8 of the fermentation treating vessel 2 is formed to the conical shape or domed ceiling shape having the gradually lowering peripheral part and the peripheral part of the cap 8 is provided with a trough part 9. The trough part 9 is properly provided with a drain device for discharging the liquid stored therein. The steam generated by the fermentation of the org. industrial waste in the treating vessel 2 of this org. waste fermentation treating device 1 is condensed by the rear surface of the cap 8. The condensate runs on the rear surface of the cap 8 and flows down the peripheral part thereof until the condensate accumulates in the trough part 9. The amt. at which the condensate on the rear surface of the cap 8 drops down into the treating vessel 2 is small and the ratio of the water to carriers for fermentation of the industrial waste increased to a prescribed ratio or above is suppressed. The fermentation is thus normally executed without trouble.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for treating organic wastes such as waste foods and wastes generated in food manufacturing processes by fermentation.

[0002]

[Prior art and its problems] In the apparatus for treating the organic waste by fermentation, the organic waste contained in the treatment tank (fermentation tank) is stirred by a stirrer and fermented by microorganisms to form compost. Some are digested and processed. In a conventional processing apparatus of this kind, the lid of the processing tank is simply composed of a horizontal flat plate.

By the way, vapor is generated in the treatment tank in the treatment process by microorganisms, the vapor is condensed on the inner surface of the lid, and the condensed liquid is dropped into the treatment tank by its own weight. When the water content of the carrier becomes 70% or more due to the dropping of the condensate, the decomposition action by microorganisms is hindered, and normal fermentation is difficult to be performed.

The object of the present invention is to prevent the condensate of steam generated by fermentation from dropping into the treatment tank.
Therefore, it is to ensure that fermentation by microorganisms is performed normally without any trouble.

[0005]

In order to achieve the above object, in the organic waste fermentation treatment apparatus according to the present invention, the lid of the treatment tank is formed into a cone shape or a dome ceiling shape in which the peripheral portion is lowered, Moreover, a gutter part for storing liquid is provided around the lid.

[0006]

[Function] The organic waste in the processing tank is fermented to generate steam, and the steam is condensed on the lower surface of the lid to become a condensed liquid. This condensate flows down along the lower surface (inner surface) of the lid to the peripheral portion and collects in the gutter portion.

Therefore, the amount of the condensate that drops into the treatment tank is small, and the fermentation treatment of the organic waste can be performed without any inconvenience.

[0008]

Embodiments of the present invention will be described below with reference to specific examples shown in the accompanying drawings. In the figure, reference numeral 1 indicates a fermentation treatment apparatus, and reference numeral 2 indicates this treatment tank.

The treatment tank 2 is equipped with a stirrer 3. The stirrer 3 has endless belts 6 attached to upper and lower shafts 5a and 5b provided on the side of a vertical shaft 4, and endless belts 6 are provided with upper and lower stirring plates 7. The shaft 4 is rotatably driven by a driving machine (not shown), and the endless belt is also fed up and down by a driving machine (not shown). In addition, the organic waste in the processing tank is agitated by self-propelled vertically.

The present invention provides such a fermentation treatment tank,
The lid 8 is formed in a cone shape or a dome ceiling shape in which the peripheral portion is lowered, and a gutter portion 9 is provided in the peripheral portion of the lid. Further, the trough portion 9 is appropriately provided with a drain device (not shown) for discharging the stored liquid therein. In the figure, reference numeral 1
Reference numeral 0 indicates a waste input port, and 11 indicates an exhaust port.

[0011]

EFFECTS OF THE INVENTION In the organic waste fermentation treatment apparatus of the above-mentioned embodiment, the vapor generated by the fermentation of the organic waste in the treatment tank is condensed on the lower surface of the lid, and the condensate travels on the lower surface of the lid. The peripheral part flows down and collects in the gutter 9.

Therefore, the amount of the condensate on the lower surface of the lid dripping into the treatment tank is small, the ratio of water to the waste fermentation carrier is prevented from exceeding a predetermined value, and fermentation is normally performed without any inconvenience.

Further, since part of the gas that causes the malodor produced by fermentation is dissolved in the condensate, the malodor in the exhaust gas is reduced accordingly.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of an organic waste fermentation treatment apparatus according to the present invention.

[Explanation of symbols]

 1 Fermentation treatment device 2 Treatment tank 3 Stirrer 4 Vertical shaft 5a, 5b Shaft for endless belt 6 Endless belt 7 Upper and lower stirring plate 8 Lid of treatment tank 9 Gutter 10 Input port 11 Exhaust port

Claims (1)

[Claims] 1. An apparatus for fermenting organic waste, comprising a lid of a treatment tank having a conical shape with a lower peripheral portion and a dome ceiling shape, and further comprising a gutter portion for storing a liquid in the peripheral portion of the lid.