JPH055493B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method for processing human waste outdoors where there is no purification facility, in transportation facilities such as ships and trains, and in tunnels where vacuum cars cannot enter. This relates to a drying device.

[Conventional technology]

In ordinary houses, the human waste excreted from the human body is either discharged into the sewage system through a flush toilet or the like, or temporarily stored in a purification layer and purified before being discharged into a general river. However, when events are held outdoors, such as sports days, trade fairs, and gatherings, where a large number of people gather, temporary toilets have been set up to dispose of human waste.

Traditionally, movable temporary toilets have been used to dispose of human waste outdoors or in places without purification facilities, but most of these toilets have a toilet tank to store the human waste, and the human waste excreted from the human body is stored in this toilet. It was stored in a tank. Therefore, after use, the temporary toilet must be used to aspirate the accumulated human waste using a vacuum car, collect it, and then dispose of it, which is time-consuming.

In addition, transportation systems such as trains, buses, and ships that travel long distances are equipped with special tanks for storing excreted human waste. Afterwards, it was common practice to collect the waste using a bagiyum car at the terminal station or transfer point.

As described above, most of the conventional methods of disposing human waste in temporary or mobile transportation systems involve storing excreted human waste and then collecting and disposing of it, which is extremely unhygienic. I had to say yes. For this reason, when used for a long period of time, excreted human waste remains, which not only causes a bad odor but also makes workers dislike it, which is not desirable from the perspective of modernizing processing.

For these purposes, various hygienic treatment methods have been considered. For example, there is a method of adding chemicals together with human waste to sterilize and prevent odors. This is often used in transportation such as Shinkansen trains, but it has the disadvantage that it cannot be used for a long time because the chemicals circulate inside the tank, and the costs associated with the use of chemicals are high. Another method has also been considered in which human waste is stored in bags made of plastic or the like and sealed to prevent the release of odors. However, a plastic bag with a fairly large area had to be used for one excretion, which increased processing costs and required subsequent processing to separate the human waste from the plastic bag at a later date.

Another method is being considered in which the excreted human waste is directly dried using the heat of a burner or the like. However, since the majority of human waste is water, removing this water requires a lot of energy and requires a long processing time.

For this reason, the same inventor as the applicant of the present application has proposed a processing device in which rotating blades are provided in a tank for storing human waste, and a heat storage body is housed in the tank. With this configuration, by heating the tank from the outside and rotating the blades at the same time, it is possible to quickly dry the human waste and evaporate most of the water in the human waste (for example, Japanese Patent Application No. 124150 of 1983 (Japanese Unexamined Patent Application Publication No. 1983-1982)
(see Publication No. 293182), etc.). However, in this method, the energy required to heat the tank is very large, and the heated heat is directly released to the outside, resulting in a high energy loss.

[Problem to be solved by the invention]

In view of the above-mentioned drawbacks, the present invention aims to store excrement and urine excreted from the human body in a tank, heat the tank from the outside, and at the same time stir it with rotating blades to quickly dry it. When heating this tank, a pipe for supplying air is wrapped around the outer circumference of the tank, the air supplied into the tank is heated in advance, and the heated air is supplied into the tank. Therefore, it is an object of the present invention to provide a human waste drying device that can extremely reduce energy loss.

[Means for Solving the Problems] The present invention includes a heat-resistant container for storing human waste, a heating means for heating the container from the outside, and a stirring device having a plurality of blades for stirring the human waste stored in the container. a plurality of spherical heat storage bodies housed in a container; a heat exchange pipe wrapped around the outer periphery of the container for supplying air sent from the outside into the container; and a heat exchange pipe wrapped around the outer periphery of the container. The present invention provides a human waste drying device characterized in that it is comprised of a reheating pipe that circulates and heats the air in the container.

[Effect]

In the present invention, human waste is stored in a heat-resistant container, and the human waste is dried by heating this container from the outside. A heat-resistant heat storage body such as ceramic is housed inside the container, and since this heat storage body and human waste are stirred by a stirring means, the heat from outside the container warms the container itself and the entire heat storage body. The heat emitted from the surface of the heat storage body heats the human waste and can quickly evaporate water. Also,
At the same time, air from outside flows through the heat exchange pipe wrapped around the outer circumference of the container, and the heat that passes through the heat exchange pipe is heated to a considerably high temperature and released into the container. Therefore, the heat that would normally be wasted is directly supplied into the container as heated air, so that the human waste can be dried more quickly.

In this way, the human waste is not only heated from the outside by a heat source, but also the heat generated from the surface of the heat storage body and the air heated by the heat exchange pipe are ejected directly onto the human waste, so that the human waste is heated inside the container. It will be heated and dried from the inside and outside.

Finally, the human waste in the container becomes powdered and can be dried to a state where no odor is generated, and when used in a temporary toilet, it can be used for a long period of time.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

In this embodiment, a case where the human waste drying device is used in a portable temporary toilet 1 will be explained.

The temporary toilet 1 has a box-like shape made of plastic, reinforced synthetic resin, etc., and a base 2 placed on the ground has a cubic shape, and a roof is attached to the top of the base 2. A house 3 is fixed, and a door 4 is attached to the front of the house 3, which opens forward and allows a user to enter the house 3.

Inside the temporary toilet 1, a human waste drying device 5 is attached to the inside of the base 2, and a toilet bowl 6 for receiving human waste is fixed to the top of the human waste drying device 5. . Also, on the side of the base 2, there is a dust suction device 7 (which also functions as a catalyst).
A diffusion pipe 8 is attached to the upper part of the dust suction device 7 for discharging moisture to the outside.

Next, Fig. 2 shows the human waste drying device 5 shown in Fig. 1.
FIG.

This human waste drying device 5 is assembled into a unit shape, and the outside is composed of an outer box 11 formed of a cubic thin steel plate.The upper part of this outer box 11 is open. An outer cover 12 is fixed to the upper opening. The inner space of the outer box 11 houses a drying pot 13 made of a heat-resistant material such as stainless steel or a thin steel plate and having a hemispherical curved lower part. Legs 14 are interposed between the bottoms of 11,
This drying pot 13 is lifted to approximately the center of the outer box 11 by legs 14.

The top of this drying pot 13 is open.
An inner lid 15 is closed to the upper opening of the drying pot 13 in an airtight manner. For this reason, drying pot 1
3. The inner space of the outer box 11 is doubled by the inner lid 15, and there is space between the inside of the outer box 11 and the outside of the drying pot 13, and between the outer lid 12 and the inner lid 15. The space is filled with heat insulating materials 16 and 17 such as glass wool.

A flat heater 18 for heating is wound around the outer periphery of the drying pot 13, and the drying pot 13 is heated from the outer periphery by this heater 18. Further, a plurality of heat exchange pipes 19 are wound around the lower half of the outer periphery of the drying pot 13, and this heat exchange pipe 19 is connected to the heater 1.
It is wrapped around the outer circumference of 8. Further, a plurality of reheating pipes 20 are wound around the outer circumference of the upper half of the drying pot 13 so as to contact the outer circumference of the heater 18.

Bearings 30 and 31 are fixed to the center of the outer cover 12 and the center of the inner cover 15, respectively, with their axes aligned, and both bearings 30 and 31 have a drive pipe 32 that is hollow inside and penetrates vertically. is rotatably supported. A cylindrical tip fitting 33 is fixed to the lower end of the drive pipe 32.
The drying pot 13 is located in the concave portion at the lower end of the tip fitting 33.
The tip fitting 33 is fitted into a protrusion 34 protruding from the center of the bottom, and the tip 33 is rotatably held by the protrusion 34. A ventilation hole 35 is opened in the center of the metal fitting 33, and the lower part of the ventilation hole 35 branches left and right to form a communication hole 36, which connects the drying pot 13.
It communicates with the internal space of. Further, four stirring blades 37 having a shape close to the curved surface of the bottom of the drying pot 13 are attached at four locations on the outer periphery of the metal fitting 33 at 90 degrees apart. The planar arrangement of the tip fitting 33 and the stirring blade 37 is shown in FIG.

Inside the drying pot 13, a plurality of spherical heat storage bodies 27 made of a material such as ceramic such as alumina (aluminum dioxide) or steel such as stainless steel are housed. Further, an introduction pipe 39 is vertically inserted between the upper part of the drying pot 13 and the toilet bowl 6 by penetrating the outer cover 12 and the inner cover 15. It is designed to be inserted within 13 minutes.

Next, an upper metal fitting 41 is fixed to the upper end of the drive pipe 32 and above the outer cover 12, and this upper metal fitting 41 is formed with a vent hole 42 that penetrates vertically. A connecting sleeve 43 fixed to the body of the human waste drying device 5 is connected to the upper end of the connecting sleeve 41 . A vent hole 44 is formed inside the connecting sleeve 43, and air can be circulated with the outside through the vent holes 42, 44.
The upper metal fitting 41 can freely rotate relative to the connecting sleeve 43.

In addition, a worm gear 4 is provided on the outer periphery of the upper metal fitting 41.
5 is fixed, and a worm 46 is engaged with this worm gear 45.
A sprocket wheel 47 is fixed to the sprocket wheel 47.
And chain 4 is attached to sprocket wheel 47.
The chain 48 is wound around a sprocket wheel 49. This sprocket wheel 49 is rotated by a motor 50 fixed to the upper part of the outer cover 12, and the output of the motor 50 is transmitted to the worm 46 via the sprocket wheel 49, the chain 48, and the sprocket wheel 47. It will be done.

Next, FIG. 4 shows how the human waste drying device 5 is connected to the dust collecting device 7 and the blower 61.

A motor 62 and a fan 63 rotated by the motor 62 are housed in the blower 61 , and a blower pipe 64 of the blower 61 is connected to the heat exchange pipe 19 . A connecting pipe 65 extending outward from the outer box 11 is connected to the other end of the heat exchange pipe 19, and this connecting pipe 65 is connected to the connecting sleeves 31, 43. Furthermore, a suction pipe 66 communicating with the outside is connected to the upper part of the drying pot 13.
This suction pipe 66 is connected to one end of the reheating pipe 20.

The other end of the reheating pipe 20 extends outward from the outer box 11, and the other end of the reheating pipe 20 is connected to a sealed dust collection/catalyst box 67. A filter 68 made of a fine wire mesh or the like and a catalyst body 69 made of a catalyst such as platinum or the like are housed in the dust collection/catalyst box 67.
Further, a discharge pipe 70 is connected to the other side of the dust suction/catalyst box 67, and a ventilator 71 is connected to the discharge pipe 70, and a motor 72 and a fan 73 are housed in the ventilator 71. It has been done.

Next, the operation of this embodiment will be explained.

First, a person who wants to relieve himself enters the temporary toilet 1 and defecates toward the toilet bowl 6. The excreted excrement falls from the toilet bowl 6 through the introduction pipe 39 and is temporarily accumulated inside the drying pot 13. When more than a certain amount of human waste is stored in the drying pot 13, the heater 18 is energized to generate heat, and the entire drying pot 13 is heated by the heat from the heater 18, and the motor 50 is operated to warm it up. 4
6. Drive pipe 32 via worm gear 45
Rotate.

Then, the heat generated from the heater 18 is transferred to the drying pot 1.
In addition to heating the entire drying pot 13, the heat is also stored in a heat storage body 38 housed inside the drying pot 13, and the human waste stored in the drying pot 13 is heated by this heater 18 and the heat storage body 38. It will be heated by the heat from the outside, and the water will evaporate.

Since the drive pipe 32 is rotated by the motor 50, each stirring blade 37 rotates horizontally at the bottom of the drying pot 13, stirring the human waste and the heat storage body 38 at the same time. are mixed while being stirred so that the temperature is uniform throughout. At this time, since the human waste comes into contact with the surface of the heat storage body 38, the heat of the heat storage body 38 is transferred from the surface to the human waste, thereby making it possible to hasten the temperature rise of the whole human waste.

Further, at this time, the motor 62 is operated and the fan 63 is rotated, so that air from the outer circumference of the blower pipe 64 flows into the heat exchange pipe 19 . Since this heat exchange pipe 19 is in contact with the heater 18, the heat exchange pipe 19 is in contact with the heater 18.
The air flowing inside the pipe 8 is heated and transferred in the direction of the connecting pipe 65. The hot air supplied from the connecting pipe 65 is then passed through the vent 44,
42 in the drive pipe 32. Next, the hot air is released from the bottom of the drying pot 13 through the ventilation hole 35 and the communication hole 36, and the hot air is blown against the human waste heated by the heat storage body 38, and the human waste is heated by the heat storage body 38. is heated from the inside and outside of the drying pot 13 to accelerate drying.

At the same time, the motor 72 in the ventilation box 71 is activated, and the fan 73 rotates, causing the drying pot 13
The air inside is sucked in the direction of the suction pipe 66, and the air sucked in by the suction pipe 66 is sent to the reheating pipe 20. Since this reheating heater 20 is heated by the heater 18, air containing bad smells such as ammonia is reheated when passing through this reheating pipe 20, and is sent into the dust collection/catalyst box 67. become.

In this dust collection/catalyst box 67, impurities and dregs are first removed by a filter 68. Next, the reheated air contacts the catalyst body 69 and is oxidized to oxidize the malodorous components, thereby removing the odor. And dust suction/catalyst box 67
The air that has passed through passes through the exhaust pipe 70 and is discharged into the air from the exhaust fan 71. This released air contains moisture from drying the human waste, but does not contain any bad odor, and is released as clean air from which dust, dirt, etc. have been removed.

The heater 18 is energized for a predetermined period of time, and the motor 50
When the stirring blade 37 is rotated by
The human waste put in is evaporated, and since most of it is water, it is dried with only a small amount of solid components remaining. Therefore, once all the human waste has been dried, the heater 18 is de-energized and the motors 50, 62, 72 stop rotating, thereby waiting for the next human waste to be processed.

〔Effect of the invention〕

Since the present invention is configured as described above, in the past, excreted human waste had to be collected and treated with a vacuum car, etc., but it is possible to evaporate water, which makes up the majority of the components of human waste. . This allows the treatment to be carried out in a temporary location, vehicle, ship, etc., and since only the evaporated water vapor is diffused, the treatment can be carried out in an extremely hygienic manner. In addition, the drying oven is characterized by the fact that heat is recovered and heated air is blown, so there is little energy loss due to heat loss, and since the hot air is sent into the drying oven, the drying speed is extremely fast.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view showing an example in which the human waste drying device of the present invention is applied to a temporary toilet, Fig. 2 is a sectional view showing the internal structure of the human waste processing device of the present invention, and Fig. 3 is the same stirring blade as above. FIG. 4 is an explanatory diagram showing the state of connection of the human waste drying device. 13... Drying pot, 15... Inner lid, 18... Heater, 19... Heat exchange pipe, 20... Reheating pipe, 32... Drive pipe, 36... Communication hole, 3
7... Stirring blade, 38... Heat storage body.

Claims (1)

[Claims] 1. A heat-resistant container for storing human waste, a heating means for heating the container from the outside, and a stirring means having a plurality of blades for stirring the human waste stored in the container,
a plurality of spherical heat storage bodies housed in a container; a heat exchange pipe wrapped around the outer periphery of the container and supplying air sent from the outside into the container;
A human waste drying device characterized by comprising a reheating pipe that is wrapped around the outer circumference of the container and heats the air inside the container by flowing it.