JP2002053383A - Compost producing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To compost organic wastes, such as garbage, and to recycle the wastes as good-quality compost by improving the crushing efficiency of the organic wastes and the agitation mixing efficiency of microorganisms and the organic wastes, and rapidly elevating the temperature in a treating vessel without using heating apparatus, such as a heater. SOLUTION: A revolving shaft 4 mounted with plural agitating vanes 7 in a multiple stage form is pendently disposed within the treating vessel 1 in which the organic wastes, such as garbage to be subjected to fermentation treatment, are housed in the closed state. The agitating vanes 7 comprise horizontally facing vanes 8 and vertically facing vanes 9 disposed near the inner peripheral wall surface along the inner peripheral wall surface of the treating vessel 1. Further, the crushing and agitating regions of the treating vessel 1 are formed to curved slopes which are increasingly narrowed as the slopes advance downward on the circular shape inner peripheral wall surface of the treating vessel 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for composting organic waste such as garbage into a compost, that is, compost, so that the waste can be regenerated as high-quality compost.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication No. Hei 11-199356 discloses a composting apparatus for composting a compost by fermenting organic matter such as garbage and garbage. This garbage disposal apparatus is provided with a substantially inverted conical processing tank for sealingly containing a fermentation accelerator and organic matter such as garbage seeded with fermentation microorganisms in advance, and a processing tank vertically penetrated and supported. Or, a rotating shaft that is rotationally driven by a motor connected to the lower end, and a plurality of cutter blades that are fixed to the rotating shaft in a cantilever shape at intervals in the vertical direction, and that pulverize and mix the fermentation accelerator and organic matter. And a number of temperature sensors for detecting temperatures at a plurality of portions of the processing tank that are spaced apart in the vertical direction. In this conventional garbage disposal apparatus, a plurality of cutter blades fixed to a rotating shaft are constituted by a thin metal rod or the like, and an inclined surface of a substantially inverted conical treatment tank is constituted by a straight line. It is.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide an apparatus for composting an organic waste such as garbage to recycle it into high-quality compost.

In order to ferment organic waste such as garbage, produce high-quality compost, and recycle it as compost, fermentation (fermentation is a process in which microorganisms are decomposed by microorganisms into useful products. It is important to proceed smoothly.) In order for fermentation to proceed smoothly, it is important to adjust the growth conditions of microorganisms. Oxygen is necessary for microorganisms to be active and decompose smoothly. In order to sufficiently supply this oxygen to microorganisms, it is indispensable to crush the material to be treated (organic waste such as garbage) and further granulate it, thereby taking up space between objects. Further, the necessity of granulation is because oxygen can be sufficiently supplied to microorganisms. Also,
When the soil becomes a dumpling (solidified state), it is a phenomenon that occurs because the amount of water is too large. In this dumpling state, oxygen is not supplied, and active microbial activity cannot be expected. , Causing odor and rot. In this dumpling state, it cannot be used as compost. Therefore, in order to produce good quality compost,
It is a matter of meeting the requirements for the survival of microorganisms, that is, providing sufficient oxygen and adequate moisture.

[0005] In view of the above, the present invention has a technical object of maintaining good growth conditions of microorganisms, and in order to achieve this technical object, crushing of organic waste as a material to be treated is performed. An object of the present invention is to provide a compost manufacturing apparatus provided with a stirring blade and a processing tank, which dramatically improves the efficiency and the stirring and mixing efficiency of microorganisms and organic waste. Another object of the present invention is to provide a compost manufacturing apparatus that can raise the temperature in a processing tank in a short time without using a heating device such as a heater.

[0006]

In order to solve the above-mentioned problems, a compost manufacturing apparatus according to the present invention comprises an organic waste such as garbage to be fermented in a closed processing tank having a circular inner peripheral wall. An input section for feeding the material into the processing tank and a take-out port for taking out the composted organic waste from the processing tank by fermentation treatment are provided, and a central portion of the processing tank is driven to rotate about an axis. A plurality of agitating blades for crushing the organic waste put into the treatment tank and agitating the organic waste and the microorganisms on the rotating shaft. The stirring blades are arranged in a multi-stage along the direction, and the stirring blades are provided with a pair of rod-shaped lateral blades extending from the suspended rotation shaft in a substantially horizontal direction with a height difference, and a pair of the blades. Connected to each tip of the horizontal blade, Is constituted by a vertical blade portion inner peripheral inner cover surfaces circumference near disposed a rod-shaped wall of the. In this way, the stirring blades are composed of the horizontal blades and the vertical blades, so that the lump of soil in a dumpling state as in the conventional processing apparatus is eliminated, and the organic waste is granulated even if the water content is large. And the subsequent fermentation process proceeds smoothly. Further, in the conventional processing apparatus, there was a problem that soil with much moisture was attached to the inner peripheral wall surface of the processing tank, but a vertical blade was provided on the stirring blade, and the vertical blade was connected to the processing tank. By disposing it near the inner peripheral wall surface along the inner peripheral wall surface, such adverse effects can be solved. Further, the stirring blade is configured by a horizontal blade portion and a vertical blade portion, and furthermore, the striking surface of the vertical blade portion is retracted at an upper end side with respect to a lower end side in a rotation direction of the stirring blade. Due to the configuration on the inclined surface, the object to be treated such as organic waste is rotated not only horizontally but also horizontally and vertically,
The efficiency of crushing and stirring can be dramatically improved.
Further, since the crushing and stirring efficiency can be remarkably improved, the temperature in the processing tank can be increased in a short time by frictional heat due to the impact contact between the stirring blade and the workpiece. Thus, by raising the temperature in the treatment tank to a high temperature, bacteria such as pathogenic bacteria, various germs, weed seeds, spoilage bacteria, and O157 bacteria in the organic waste can be killed.

In the crushing and stirring area where the stirring blade is acted, the processing tank is formed as a curved inclined surface that is narrowed as the circular inner peripheral wall surface of the processing tank advances downward. As a synergistic effect with the action of the stirring blade, the object to be treated such as organic waste can be more efficiently rotated and moved in the vertical and horizontal directions, and the crushing and stirring efficiency can be further improved. By forming the shape of the processing tank on a curved inclined surface, the object to be processed is moved upward along the inner wall surface of the processing tank, and then is moved in the rotation axis direction, As it is moved downward, it is rotated and moved, and as a result, if it is only one side, the rotation of microorganisms and organic waste can be uneven, and the organic source that is the source of microorganisms There was a problem that it was difficult to stir the organic waste efficiently and efficiently, but the rotation in the vertical direction was added to this, and the object to be treated such as organic waste was also rotated and moved in the vertical and horizontal directions. It exerted a great power to improve the unevenness of stirring, and the fermentation temperature could be kept constant, so that a temperature sensor was not required. Further, since the crushing and stirring efficiency can be further improved, the temperature in the processing tank can be further shortened without using a heating device such as a heater due to frictional heat generated by impact contact between the stirring blade and the workpiece. Can rise in time. Since the temperature in the treatment tank can be increased in a short time in this way, a great effect can be exerted on the killing of putrefactive bacteria and the countermeasure against offensive odor, which are the cause of the offensive odor.

[0008]

Embodiments of the present invention will be described with reference to the drawings. In the figure, reference numeral 1 denotes a metal processing tank for storing organic waste such as garbage to be fermented and microorganisms in a sealed state, and the processing tank 1 has a circular inner peripheral wall surface and has a circular inner peripheral wall. An input unit 2 for inputting organic waste such as garbage to be fermented into the processing tank 1, and a takeout unit for removing the composted organic waste fermented on the lower side wall from the processing tank 1. 3 are provided. In addition,
Although not shown, at the top of the processing tank 1, the processing tank 1
An exhaust duct is provided for discharging carbon dioxide and water vapor generated in the inside.

At the center of the processing tank 1, a rotary shaft 4 driven to rotate about an axis is vertically provided via a bearing. The rotating shaft 4 is rotated by driving a driving pulley 6 that is rotatably supported by a lower end of the rotating shaft 4 that projects a driving force of a driving motor (not shown) through the driving belt 5 to the outside below the processing tank 1. . A plurality of metal stirring blades 7 for crushing the organic waste put into the treatment tank 1 and stirring and mixing the organic waste and microorganisms are provided on the rotating shaft 4. It is configured to be mounted in multiple stages along the axial direction. The agitating blade 7 includes a pair of rod-shaped lateral blades 8, 8 extending from the suspended rotating shaft 4 in a substantially horizontal direction with a height difference, and a pair of the horizontal blades 8, 8. It is constituted by a rod-shaped vertical blade portion 9 connected to each end portion and disposed near the inner peripheral wall surface along the inner peripheral wall surface of the processing tank 1.

The striking surface of the vertical blade portion 9 of the stirring blade 7 is formed as an inclined surface with its upper end retreated with respect to the lower end in the rotation direction of the stirring blade 7, and is rotated. It is operated to move an object to be treated such as an organic waste hitting the hitting surface of the vertical blade 9 upward.

In the crushing and stirring area where the stirring blades 7 act, the processing tank 1 is formed as a curved inclined surface that becomes narrower as it goes down the circular inner peripheral wall surface of the processing tank 1. .

The openable and closable lid 10 constituting the top of the processing tank 1 is formed in a curved shape as shown in the drawing.
The lid 10 is made of a mirror plate so that the inner wall surface of the lid 10 is mirror-finished. Thereby, the lid 10
The water droplets attached to the inner wall surface are guided to the curved inner surface of the mirror surface and guided to the peripheral edge of the opening of the lid 10, and the guided water droplets are not returned to the processing tank 1. If it is configured such that it can be discharged out of the processing tank 1 from the peripheral edge of the opening of the lid 10 by appropriate means, the adjustment of moisture during stirring can be stabilized. As a means for discharging water droplets guided to the periphery of the opening of the lid 10, not shown,
For example, a means such as forming a gutter in the periphery of the opening of the lid 10 and connecting a discharge pipe to the gutter may be considered. With such an improvement, it is possible to considerably eliminate the adverse effects of the conventional apparatus using a flat lid, which makes it difficult to stabilize the moisture adjustment and the soil is likely to be in a dumpling state. It is also possible to collect the discharged liquid in a suitable container and reuse it as a liquid compost.

[0013]

According to the compost manufacturing apparatus of the present invention,
The efficiency of crushing organic waste, which is the material to be treated, and the efficiency of stirring and mixing microorganisms and organic waste can be dramatically improved, and the temperature in the treatment tank can be shortened without using a heating device such as a heater. The temperature can be raised to a certain temperature over time, so that good growth conditions for microorganisms that are important for the fermentation process to proceed smoothly can be maintained, and organic waste such as garbage can be composted or composted. It can be reproduced as high quality compost. In addition, since the temperature inside the treatment tank can be raised to a certain temperature in a short time without using a heating device such as a heater, it has a great effect on killing putrefactive bacteria causing malodor and countermeasures against malodor. be able to.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view showing a compost manufacturing apparatus of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Processing tank 2 Input part 3 Take-out part 4 Rotary shaft 7 Stirring blade 8 Horizontal blade 9 Vertical blade 10 Lid

 ──────────────────────────────────────────────────の Continuing from the front page (72) Inventor Kazuo Shimoyama 112-82 Tokoro, Nikko-shi, Tochigi F-term in Organic Co., Ltd. (reference) 4D004 AA03 BA04 CA04 CA15 CA19 CA48 CB04 CB27 CB31 4D065 CA06 CB03 CC04 DD11 DD22 EA08 EB17 ED16 ED18 4H061 AA03 CC47 CC55 GG13 GG43 GG49 GG68 GG69 GG70

Claims (3)

[Claims] An input section for feeding organic waste such as garbage to be fermented into a closed processing tank having a circular inner peripheral wall surface into the processing tank, and an organic fermented and composted organic waste. A take-out port for taking out waste from the processing tank is provided, a rotating shaft that is driven to rotate around an axis is vertically provided at the center of the processing tank, and the rotating shaft is supplied into the processing tank. A plurality of stirring blades for crushing the organic waste and stirring the organic waste and the microorganisms are mounted in multiple stages along the axial direction of the rotating shaft, and the stirring blade is vertically installed. And a pair of rod-shaped lateral blades extending with a height difference substantially in the horizontal direction from the rotation shaft, and connected to respective tips of the pair of horizontal blades, along the inner peripheral wall surface of the processing tank. It consists of a bar-shaped vertical blade located near the inner peripheral wall. And a compost manufacturing apparatus. 2. The processing tank is formed in a crushing and stirring area in which the stirring blade is acted, and is formed as a curved inclined surface which is narrowed as the circular inner peripheral wall surface of the processing tank advances downward. The compost manufacturing apparatus according to claim 1, wherein 3. The striking blade according to claim 1, wherein the striking surface of the vertical blade portion of the stirring blade is formed as an inclined surface whose upper end is retracted with respect to a lower end in a rotation direction of the stirring blade. 2. The compost manufacturing apparatus according to 1.