JPH03237081A - Production of compost and equipment - Google Patents

Abstract

PURPOSE:To shorten a period of complete aging by supplying O2 or a fermentation agent from an air supply case body provided to the bottom part of compost and collecting the generated gaseous available component into a gas collection hopper of the upper part and returning the component to a blower, sending and diffusing it into compost. CONSTITUTION:The outside of compost A is covered with a covering sheet 1 such as a plastic sheet or cloth material. Then, O2 or a fermentation agent is supplied from a supplementary valve port 11 and blown from a blower 9 and sent into an air supply case body 2 through a vent pipe 10. O2 or the fermentation agent is uniform ly diffused into compost A from a hollow vent cylinder 6 reaching the upper end part of the nearly central position of compost A and from the vent holes 5 of a hollow outside frame 3 and branched pipes 4. The available components such as N2, NH3 and K successively generated by aging of compost A are recovered into a funnellike gas collection hopper 7 of the upside without being escaped. Harmful bacteria are removed by a cleaner 12 and the available components are passed through a return vent pipe 8 and returned to the blower 9 and resupplied into the compost A from the case body 2. Thereby good-quality compost is obtained which has the uniform degree of complete aging.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a method and apparatus for producing compost.

[Conventional technology]

In the conventional method of producing compost, for example, as shown in Figure 3, the compost (B) is loaded into a wooden frame (A) framed outdoors, or the compost (B) is loaded on an indoor dirt floor as shown in Figure 4. There are ways to accumulate c).

[Problem to be solved by the invention]

In conventional compost production methods, the ripening process, ripening period, etc. vary greatly depending on the compost raw material, but for example, straw,
When plants such as rice husk, wildflowers, and manure are used as compost raw materials, 1. Usually, fast-growing molds and bacteria are involved in the early stage of ripening, and the temperature rises due to the heat of respiration of the molds and bacteria. The first stage is reached, followed by the growth of thermophilic microorganisms due to high temperatures, and the second stage in which cellulose decomposition is carried out by cellulose-degrading bacteria, etc., and finally, the decomposition of lignin becomes the starting material for mushrooms and many other types of At the third stage, when microorganisms are involved, the plant remains are completely rotten and the compost is fully ripened. However.

Among the various bacteria and microorganisms that grow during the above-mentioned series of ripening, most of them are aerobic and high-temperature, except for some anaerobic ones, and the activity of microorganisms is generally weakened in the absence of oxygen. Therefore, in the past, in order to supply oxygen to the center of the compost, a cumbersome ``cutting back'' operation was carried out at least two to three times to stack the compost at least two or three times when the compost reached full maturity.
If you do not try to uniformize the ripening by feeding the compost into compost, there is a problem that not only will the ripening be delayed, but you will not be able to obtain a product with a constant degree of ripeness.Especially when making rapid composting, it is necessary to decompose the organic matter first. Since the bacteria that start composting are aerobic bacteria, it is necessary to allow good air circulation in the deep part of the compost from the beginning. had.

The present invention aims to provide a method for producing compost that can eliminate the troublesome work of turning back and stacking compost, shorten the period of ripening, and produce high-quality compost with a uniform degree of ripeness both inside and outside. The purpose is

[Means to solve the problem]

In order to achieve the above object, the method for producing compost of the present invention covers the outside of the compost with a covering sheet, provides an air supply case with ventilation holes at the bottom of the compost, and provides an air supply case on the top of the compost. A return air pipe is connected from the air collecting air bar to the blower, and the air is blown from the blower into the air supply housing through the air pipe 'I!'. :Connected, and the return vent pipe is provided with a replenishment valve for oxygen and fermentation agent. Then, oxygen and fermentation agents are sent to the bottom and center of the compost via a blower, and gases generated from the compost, such as nitrogen, are collected from the upper air collecting hoop without escaping to the outside. This method forms a circulation path for compost-generated gas that can be returned to the blower from the return vent pipe and sent back to the bottom of the compost from the air supply casing, and uniformly circulates and diffuses it into the compost.

[Effect]

When the compost manufacturing method is carried out using the apparatus configured as described above, oxygen and fermentation agents can be delivered to the center of the piled compost in one step, and nitrogen, ammonia, potassium, etc. generated from the compost can be delivered. The active ingredients can be circulated and diffused uniformly into the compost without escaping.

[Implementation fl+] An example will be described with reference to the drawings.

In Fig. 1, a covering sheet 1 is coated on the outside of compost A.
5 is made of plastic such as polyethylene resin, a sheet of paper, or a cloth material, and is coated on the outside of the compost A. Compost A
The air supply casing 2 to be buried in the bottom of the air supply case 2 is made by bending a hollow tube such as a vinyl chloride resin into a substantially rectangular shape to form a hollow outer frame 3, and inserting a bar-like structure laterally inside the hollow outer frame 3. Hollow branch pipes 4.4... are installed in communication with the hollow outer frame 3, and ventilation holes 5.5... are bored at appropriate positions in the hollow outer frame 3 and the branch pipes 4. Further, it is desirable to provide a hollow ventilation cylinder 6 at a height approximately at the center of the branch pipe 4, the upper end of which reaches approximately the center of the compost A.

The air collection bar 7 provided above the compost A is made of, for example, a metal plate and formed into a substantially inverted funnel shape, and one end of the return ventilation pipe 8 is connected to the air collection ho bar 7 so as to communicate with the air collection ho bar 7. The other end side of the trachea 8 is connected in communication with a blower 9 provided at an outside position.

Additionally, the blower 9 and the air supply casing 2 are blown into each other and connected through a ventilation pipe 10 .

The replenishment valve port 11 for oxygen and fermentation agent may be provided in communication with the return vent pipe 8, and may be controlled by a sensor (not shown) in the compost using a renoid or the like. Furthermore, it is desirable to provide a cleaner 12 in the middle of the return vent pipe 8 to remove harmful bacteria. It is even more desirable to provide a water supply nozzle l3 above the compost A for maintaining humidity.

Furthermore, if a ring blower with a high heat generation temperature is used as the blower, the temperature of the circulating gas can be adjusted.

Using the device with the above-mentioned configuration, oxygen and fermentation agents are sufficiently supplied from the center and bottom of the compost A when necessary, and are uniformly dispersed in the compost A. Furthermore, nitrogen valves, ammonia, potassium, etc. generated from the compost are supplied. The active ingredients are returned to the blower from the upper air collection bar through the return vent pipe without escaping.
It is again supplied into the compost A from the air supply case and circulated and diffused.

〔Effect of the invention〕

Since the invention is constructed as described in one or more ways, it provides the advantages described below.

Since it is possible to supply sufficient oxygen and fermentation agents such as enzymes to the center of loaded compost in 1, there is no need for "cutting back" work that requires a lot of labor and time, and
Nitrogen valve, ammonia, and
By collecting active ingredients such as potash in the air collector without escaping, and circulating and diffusing them evenly into the compost again, promoting the growth of aerobic and thermophilic microorganisms, and controlling the operation,
It can freely accommodate the development of anaerobic microorganisms, and enables production while maintaining the oxygen 1 fermentation agent, humidity, and temperature at the best conditions corresponding to the ripening period of the compost.

[Brief explanation of drawings]

FIG. 1 is a longitudinal front view of an apparatus used in the compost manufacturing method, and FIG. 2 is a transverse plan view. FIG. 3 and FIG. 4 are diagrams each showing a conventional manufacturing method by piling up compost.

Claims (1)

[Claims] 1. Cover the compost with a covering sheet, install an air supply case at the bottom of the compost to supply oxygen or fermentation agent into the compost as needed, and install an air collection hopper above the compost. A method for producing compost, characterized in that a blower is installed to collect effective ingredient gases generated from the compost, returned to the blower, and fed into the compost again for circulation and diffusion. 2. Cover the area around the compost with a covering sheet, provide an air supply housing at the bottom of the compost, provide an air collection hopper above the compost, and connect the air collection hopper and the air supply housing via a blower. A compost manufacturing device, which is connected to a manure by a ventilation pipe, and a replenishment valve port is provided in the ventilation pipe.