JPS6129912B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a compost production device, and more particularly to a device that continuously composts solid waste separated from a toilet bowl mainly by aerobic microorganisms.

Conventional devices of this type include a screw conveyor type device in which a screw shaft is housed in a cylinder, and the solid excrement is composted while being moved by the screw shaft.

In the screw type, carbohydrate powder and cultured fibrinolytic bacteria are added as a carbon source to adjust the C-N ratio during composting for nitrogen-rich solid excrement. Composting is carried out by adding composting aids such as solid waste and PH regulators, but the essential composting aids are moved and extruded together with solid excrement by the rotation of the screw shaft, so they are continuously supplied. There were various deficiencies, such as not only consuming a considerable amount of compost auxiliary agent for composting, but also problems in supply management.

The present invention solves the above-mentioned drawbacks at once, and will be described in detail below based on an example of implementation shown in the drawings.

The drawing shows a mode in which the device A of the present invention is installed under the floor of a toilet room B. The device A has a rotating shaft 2 installed at an inclined angle close to horizontal in conjunction with a prime mover 1, and a rotating shaft 2 installed under the floor of a toilet room B. 2, and has a plurality of compost generation chambers a ₁ , a ₂ , a ₃ , and a ₄ in communication with each other from the upper side to the lower side in the axial direction. A heating element 5 is set on the outer periphery of the rotating cylinder 3.
A heating outer cylinder 4 containing a built-in solid waste inlet pipe 6 leading to the upper compost generation chamber _A1 in the rotary cylinder 3, and a compost outlet pipe 7 leading to the lower compost generation chamber _A4 in the rotary cylinder 3. The heating outer cylinder 4 is covered with a heat insulating body 8, and the solid waste introduction pipe 6 is connected to the toilet port _C1 of the solid-liquid separation type toilet bowl C on the floor.
On the other hand, the compost outlet pipe 7 is connected to a compost storage tank D buried underground.

The prime mover 1 is a motor with a speed reducer or the like, and is interlocked with a rotating shaft 2, and can variably adjust a rotating cylinder 3 integrated with the rotating shaft 2 to a preferred rotational speed.

The rotating shaft 2 has an upper shaft end supported by a bearing 9 of a solid excrement introduction pipe 6, and a lower shaft part supported by a bearing 10 of a solid excrement discharge pipe 7. The substantially horizontal pipe portion 6a of the excrement introduction pipe 6, the rotating cylinder 3, and the substantially horizontal pipe portion 7a of the solid waste discharge pipe 7.
A screw 11 is located in the center and extends through the substantially horizontal tube 6a, and its lower end is connected to the rotary tube 3.
It is provided close to the inlet 3a which will be described later.

The rotating cylinder 3 has a substantially horizontal pipe portion 6a near its upper end.
A solid excrement inflow pipe 3a adjacent to the end port is provided with an opening, while a compost outflow port opening into the substantially horizontal pipe portion 7a is provided at the lower end, and the inflow port 3a and the outflow port 3b are provided.
In the cylinder between them, partition rings 12 having passages 13 around the center, that is, the rotation axis 2, are provided at approximately intervals from the upper side to the lower side, and a compost generation chamber a is connected from the upper side to the lower side with each passage 13. ₁ , a ₂ , a ₃ , and a ₄ are formed. Each of the compost generation chambers a ₁ , a ₂ , a ₃ , and a ₄ is provided with stirring plates 14 in the axial direction at appropriate locations on the circumferential surface of the chamber, dividing the chamber in the circumferential direction.

The heating outer cylinder 4 surrounds the rotary cylinder 3 from the upper end to the lower end of its outer periphery, leaving a slight gap, so that the built-in heating element 3 can be heated.

The heat insulating body 8 is formed of a heat insulating material, and the heat generating body 5
The heating outer cylinder 4 is covered to prevent the amount of heat from escaping into the atmosphere.

Next, when the device A of the present invention is used, the solid excrement and drop paper separated from the urine and washing water and falling from the toilet opening _C1 of the open toilet tray _C2 are transported to a substantially horizontal pipe section. It is deposited on the bottom of 6a. As the prime mover 1 starts, the rotating shaft 2 and the rotating cylinder 3 rotate, and the screw 11 mixes the accumulated solid excrement and drop paper while feeding the inlet 3a of the rotating cylinder 3.
and send it into the first compost generation chamber _A1 . At this time, it is heated by the heating element 5 of the heating outer cylinder 4 of the rotary cylinder 3, and the inside of each compost generation chamber _a1 , _a2 , _a3 , _a4 is heated to about 50 to 60 degrees, which is preferable for compost fermentation. It's warm. The solid excrement sent into the first compost generation chamber _A1 is lifted from the bottom to a higher level by each stirring plate 14 and repeatedly falls to the adjacent compartment, creating an aerobic atmosphere where aerobic microorganisms can easily become active. Air is supplied to maintain the condition, and the material is thoroughly stirred up and down and dried. The solid excrement that is being agitated and moved to the lower partition ring 12 side and is being composted enters the second composting chamber _A2 from the passage 13, where it is stirred and dried again and becomes compost. At the same time, due to self-heating caused by fermentation centered on thermophilic fibrinolytic bacteria,
When the temperature reaches 70 degrees, pathogenic bacteria and parasite eggs are also killed. Next, compost is produced in the third and fourth compost generation chambers.
After moving to a ₃ and a ₄ in order, stirring and drying are repeated again, and the compost is completely composted and pulverized, it is transferred to the outlet 3b.
It fell into the compost storage tank D. Thereby, the compost in the compost storage tank D can be used as organic fertilizer after being cured.

Specifically, the rotary cylinder 3 has a diameter of 20 cm and a length of 70 cm, and can continuously compost the solid excrement of 4 to 5 people, and can sufficiently process it in several hours to half a day's operation. It was hot. Moreover, the heat insulator 8 allows composting to be carried out without any problem even in cold regions.

In the above embodiments, the number of compost generation chambers, the diameter and inclination angle of the rotary tube are not limited to those shown in the drawings, and it goes without saying that they can be changed to a preferable configuration depending on the amount of solid excrement to be composted. This does not change the gist of the present invention in any way.

Therefore, the present invention has the following advantages.

Solid excrement can be composted by aerobic microorganisms, making it possible to eliminate the need for composting aids or to use them in very small quantities.

It can be decomposed by high-temperature bacteria using artificial heating, sterilized evenly, and composted.

It is small and easy to transport and install, and can be installed under the floor of a toilet room, making it useful not only for newly built houses but also for remodeling existing toilets.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view showing an embodiment in which the device of the present invention is installed under the floor of a toilet room. Fig. 2 is an enlarged longitudinal sectional view of the main part. FIG. 3 is an enlarged vertical sectional view of the rotary cylinder taken along the - line. FIG. 4 is an enlarged longitudinal cross-sectional view of the rotary cylinder taken along the - line. In the diagram, C is the toilet bowl, _C1 is the toilet opening, 1 is the prime mover,
2 is a rotating shaft, 3 is a rotating cylinder, 4 is a heating cylinder, 5 is a heating element, 6 is a solid excrement inlet pipe, 7 is a compost outlet pipe, a ₁ , a ₂ , a ₃ , and a ₄ are compost generation room.

Claims (1)

[Scope of Claims] 1. A rotating shaft that is interlocked with the prime mover and installed at an inclined angle close to horizontal; a rotary cylinder equipped with a plurality of compost generation chambers in communication with each other;
A heating outer cylinder that is set around the outer circumference of the rotary cylinder and has a built-in heating element, a solid waste introduction pipe that leads to the upper compost generation chamber of the rotary cylinder, and a compost that leads to the lower compost generation chamber of the rotary cylinder. A compost generator consisting of a lead-out pipe. 2. The compost generating device according to claim 1, wherein the solid excrement introduction pipe is connected to a toilet outlet of a toilet bowl.