JPS6028650Y2 - Rotary reflux composting device - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a horizontal rotary composting device.

Conventional rotary composting equipment puts waste into the equipment, mixes it with the compost inside the equipment by rotating it, and composts it by supplying air, but all of them use a complete mixing method. To take out the produced compost, after putting in the waste,
~5 days had to pass and could not be taken out at will.

This invention mixes the input waste by rotation in the device, moves it to the takeout port side by extrusion flow, and during this time, composts by supplying air.Composting is completed at the takeout port, and the waste is optionally mixed. This allows the generated compost to be taken out.

In addition, conventional methods were inefficient at composting because they were completely mixed.
Mixing at the time of waste input, that is, moisture adjustment, did not go well, but with this invention, the input waste is moved to the outlet side by extrusion flow, and the generated compost (low moisture content) is returned to the input side. The aim is to improve the efficiency of composting by mixing the generated compost and input waste and adjusting the moisture content.

Organic waste is composted by adjusting the moisture content to 40-60% and controlling the appropriate amount of air.

In conventional rotary composting equipment, when waste is put into the main body, the compost inside the main body is mixed with the main body as it rotates, the moisture is adjusted, and the temperature inside the main body is lowered by supplying air. Composting was carried out as the temperature rose and the composting heat was taken out of the system, but as there was complete mixing inside the main body, there was almost no temperature distribution, and in order to take out the generated compost, it was necessary to put the waste in. 3-5 days had to pass.

In addition, since waste is fed into the main body every day, the moisture in the compost inside the main body cannot be removed sufficiently, making it difficult to adjust the moisture content of the input waste, resulting in a decrease in composting efficiency.

The present invention aims to perform composting using the extrusion flow method and reflux method in a rotary composting device, which has an inlet and an outlet on opposite sides, an air intake port at the bottom, and an air suction pipe inside. The setup is a rotatable truncated cone-shaped fermentation tank that spreads from the input port to the output port, with a flow section at both ends and a partition plate that slopes downward from the output port to the input port. It is characterized by being separated into a chamber and a reflux chamber.

The temperature distribution inside the main body due to the extrusion flow is such that easily decomposable materials such as garbage reach their highest temperature on the first day of input.
After the second day, the temperature decreases, and on the third day, compost is produced.

The waste inside the main body remains stationary while it is being composted, and the main body is rotated and moved only when it is being taken out or recycled.

To facilitate this movement, the rotating body has a truncated conical shape that expands from the input port to the output port.

This movement becomes easier if the partition plate is tilted toward the input port.

Further, in order to easily move the compost between the two chambers, a spiral feed plate may be provided on each inner wall.

When using the device of this invention, the waste is moved in the direction of removal by a push-out flow and composted, so the time required for composting is shortened compared to when composting is done by homogeneous mixing, and the generated compost can be taken out at any time. can be done.

In addition, with easily decomposable waste such as food waste, it is usually necessary to reflux it as a moisture regulator and mix it with the input waste, but the device of the present invention allows this compost to be refluxed as a moisture regulator. An integrated process of mixing, composting, reflux, and mixing can be performed within the tank.

The present invention will be explained below based on examples.

1 and 4 are cross-sectional views of the rotary reflux type composting apparatus of the present invention.

FIGS. 2 and 5 are cross-sectional views of A and A' in FIGS. 1 and 4.

Figures 3 and 6 are layout diagrams of composting equipment including heat recovery equipment.

Embodiment 1 shown in FIG. 1 has a waste inlet 1 in the longitudinal direction of a rotatable fermenter main body 2 and an outlet 3 in the opposite side.
An air intake port 9 is provided on the longitudinal surface opposite to the input port 1, and a perforated plate 11 is provided above the air intake port 9 within the main body to uniformly draw air into the compost. .

The fermenter expands into a trapezoidal shape from the input side to the takeout side, and is divided into a composting chamber and a reflux chamber by a partition plate 16 with a flow section 10 at both ends.

When the waste is input into the input port 1, it passes through the circulation section 10 and falls into the main body, where it is mixed with the refluxed compost as the main body 2 rotates.

The main body 2 is received by 5.4 rollers and rotated by a rotation drive unit 4.

The waste mixed with the reflux compost gradually moves toward the takeout port as the main body rotates within the composting chamber 20 partitioned by the partition plate 16.

This partition plate 16 is inclined so that the compost can be easily moved.

The main body 2 rotates only when waste is input, and is normally stationary.

Therefore, when waste is put in, the compost inside the main body moves to the outlet 3;
The generated compost has a low moisture content in the vicinity of the take-out port 3, and as the main body 2 rotates, it passes through the circulation section 10 and enters the reflux chamber 2.
Move to step 1, and as the main body rotates further, it moves to the input port side,
It is mixed with industrial waste as a moisture regulator in the distribution section of the input port.

A plate 22 is provided in the circulation section 10 of the input and output ports to facilitate the movement of waste and generated compost to the composting chamber and the reflux chamber, respectively.

A large amount of heat is generated in the composting chamber 20, and in order to extract this heat, a perforated suction pipe 8 is provided in the compost above the perforated plate 11, and the perforated suction pipe 8 is rotated together with the main body 2. Both sides are connected to a stuffing box 6 and a flexible joint 7.

In addition, in order to effectively extract composting heat, the effective suction pipe 8
It is partitioned by a blind plate 17 and connected from flexible joints 7 on both sides to a heat exchanger 12 and a suction blower 13.

By partitioning with blind plates 17, high-temperature heat can be extracted efficiently by adjusting the amount of suction air on both sides.

The suctioned composting heat is exchanged with hot water by the circulation pump 15, stored in the hot water storage tank 14, and used for hot water supply, etc.

A soil deodorizing device 23 for removing odors is attached to the discharge side of the suction blower 13.

A band 24 is attached to the main body 2 to make the orbit of the roller 5 on the input port side have the same radius as the drive part 4.

Embodiment 2 in FIG. 4 shows the distribution section 10 and composting chamber 2 of Embodiment 1.
A spiral feed plate 25 is provided on the inner wall of the zero and reflux chambers 21.

The direction of the spiral feed plate 25 is set in the reflux chamber 21 so that the compost moves from the input side to the takeout side in the composting chamber 20.
In this case, it is installed so that it moves from the output side to the input side.

This makes it easier to move waste and compost.

The device of the present invention can recirculate the generated compost within the main body as a water conditioner and mix it with waste, making it possible to continuously compost waste.

In addition, since the waste is composted by moving in the direction of extraction using an extrusion flow, the number of days required for composting is shortened, and the produced compost can be taken out at any time.

In addition, the main body has a conical shape that expands toward the outlet side,
When the partition plate is tilted, it has the effect of allowing compost to move and circulate at low rotation speeds.

[Brief explanation of the drawing]

FIGS. 1 and 4 are cross-sectional views of a rotary reflux type composting apparatus. FIGS. 2 and 5 are sectional views taken along the line AA' in FIGS. 1 and 4. Figures 3 and 6 are layout diagrams of composting equipment including heat recovery equipment. Explanation of symbols: 1... Input port, 2... Fermentation tank body, 3... Outlet port, 10...
・Distribution department, 16... Partition plate, 20...
・Composting room, 21... Reflux room, 22...
- Inclined plate, 23...Spiral feed plate.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A rotatable truncated conical device that has an inlet and an outlet on opposite sides, an air intake at the bottom and an air suction pipe inside, and spreads from the inlet to the outlet. Rotary reflux composting characterized by separating the inside of the fermenter into a composting chamber and a reflux chamber with a partition plate that has a flow section at both ends and slopes downward from the take-out port side to the input port side. Device. 2. On the inner wall of the fermentation tank in the circulation section at both ends, there is a reflux chamber on the input side so that the mixture of waste and compost is sent into the composting chamber by rotation, and a reflux chamber on the takeout side, where the compost produced by the rotation is sent to the composting chamber. The rotary reflux type composting device according to claim 1, wherein a spiral feed plate is provided so that the composting device is fed into the rotary reflux type composting device. 3. Scope of Utility Model Registration Claim 1, Paragraph 1: A spiral feed plate is provided on the inner wall of the composting chamber to send the compost to the waste takeout port, and a spiral feed plate is provided on the inner wall of the reflux chamber to send the compost to the input port. Or the rotary reflux type composting device according to item 2.