JPH0568963A - Excretion treatment device - Google Patents

Abstract

PURPOSE:To provide the title device constituted so as to perform the evaporation treatment of excretion in a hermetically closed container and clean the container after heating and evaporation and used over a long period of time by certainly recovering nonevaporated residue. CONSTITUTION:An excretion treatment device is constituted of an excretion receiving container 10, the means 16 heating the lower part of the container 10, a supply pipe 33 supplying air into the container 10, the exhaust pipe 19 communicating with the container 10 to discharge evaporated steam, the catalyst box 15 connected to the exhaust pipe 19 through an opening and closing valve 20, the dust collecting box 24 connected to the exhaust pipe 19 through an opening and closing valve 22 and the recovery bag 48 built in the dust collecting box 24 to recover dust from air.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to human waste treatment for treating human waste outdoors without a purification treatment facility, in transportation such as ships and trains, in tunnels that are closed from the surroundings and where vacuum cars cannot enter. More particularly, the present invention relates to an excrement treatment device capable of reliably collecting dust, which is a residue of excrement that has been evaporated and dried in a container, and can be used for a long period of time.

[0002]

2. Description of the Related Art Generally, human waste excreted from the human body is discharged into a sewer pipe by a flush toilet or the like in a general house, or is temporarily stored in a septic tank and purified before being discharged into a river. However, when an event is held outdoors, for example, at a venue where a large number of staff members such as an athletic meet, a trade fair, and a gathering gather, a physiological toilet of participants has conventionally been eliminated by providing a temporary toilet.

As described above, a movable temporary toilet has been used in the conventional treatment of human waste outside or in a place without a purification facility. However, most of them have a structure with a stool that temporarily stores the sewage, and the sewage excreted from the human body is stored in this stool. Therefore, after using the temporary toilet, the human waste stored in the toilet tank must be collected by a vacuum car or the like and transferred to the human waste treatment facility. Therefore, it is necessary to perform a treatment after the collection, which is troublesome for the post-treatment and is unsanitary.

[0004] In addition, a long-distance transportation system such as a train, a bus, and a ship is provided with a dedicated tank for storing excreted excrement, and the excrement is deodorized by storing chemicals in the excrement. After processing, it was common to collect by a vacuum car at the terminal station or relay point.

As described above, in the conventional treatment of human waste in a temporary toilet or a movable transportation facility, most of the waste is stored as excreted from the human body and then collected. Therefore, it must be said that any of the storage method, collection method, and treatment method is non-modern and extremely unsanitary. Therefore, when the temporary toilet is used for a long time, the excreted excrement remains in the tank, which causes a bad odor. In addition, since the treatment work after use is disliked by the workers, it is not preferable in terms of modernization of maintenance after the temporary toilet is installed.

Under such circumstances, various methods for treating human waste in a hygienic manner have hitherto been considered. For example,
There is a method of sterilizing and deodorizing by adding chemicals together with human waste. This method is often used for transportation such as Shinkansen, but it has drawbacks that it cannot be used for a long period of time because the chemical circulates in the tank and the cost of using the chemical is high.

[0007] Further, a method of storing sewage in a bag made of vinyl or the like and packing it to prevent odor from being emitted has been considered. However, a plastic bag having a considerably large area must be used for each excretion, and the processing cost becomes high, and the processing for separating human waste from the plastic bag at a later time is troublesome and the processing facility becomes large. It was a thing.

Further, a method of directly drying the excreted excrement with a heating power such as a burner has been considered. However, since most of the components of human waste are water, much energy was required to remove this water. In addition, in the conventional method of simply performing a dry treatment with heat, a single treatment time is long.

For this reason, the same inventor as the applicant of the present application has proposed a human waste treatment apparatus in which a container for storing human waste is provided with a rotating stirring blade, and a large number of heat storage bodies are housed in the container. There is. With this device, by heating the container from the outside and rotating the stirring blade at the same time, it is possible to quickly dry the raw sewage and evaporate the water, which is a major component of the raw sewage (Japanese Patent Application No. 63/1988). No. 124150,
Japanese patent application No. 411577 for 2nd year).

When the newly proposed human waste treatment apparatus is used, excreted human waste is heated and evaporated in the container, and most of the components of human waste are evaporated and released into the atmosphere. In this case, the diffused water vapor should be deodorized with a catalyst, etc., and even in a place where a house or the like is standing in or a large number of people gather, it does not emit a foul odor and is environmentally friendly. It was also preferable.

[0011]

It is extremely hygienic to evaporate and stir the human waste in such a sealed container, and the work can be systematized. It does not apply. However, in the human waste treating apparatus proposed by the inventor, human waste is stored in a closed container (drying pot), and the lower part of the closed drying pot is heated by a heater or the like to evaporate the same. .. Since the human waste is evaporated and dried in such a sealed container, the malodor is not dispersed outside and can be treated extremely hygienically. Then, the malodorous component of the vaporized water vapor can be oxidized by bringing it into contact with the catalyst, and can be diffused into the atmosphere in an odorless state. For this reason, unlike the temporary toilets by the conventional pumping system, it provided a modern and hygienic treatment mechanism.

However, several percent of human waste excreted from the human body is a non-evaporable component such as fiber and ash. For this reason, when human waste is evaporated and dried in a closed container, such fibrous substances, ash, etc. remain and accumulate in the container. In order to use such a human waste treatment device for a long period of time, it was necessary to remove dust remaining in the container and clean it. For this reason, the conventional human waste treatment apparatus is provided with a processing mechanism for collecting dust. With this cleaning processing mechanism, it is possible to always control the cleaning process after evaporating and drying the human waste so that the inside of the container can be always kept clean. If this cleaning process is not performed, dust, slag, and the like will be accumulated in the container, and eventually it becomes impossible to dry the human waste.

In cleaning the residue in the container for such evaporation and drying, compressed air is jetted from a part of the container,
The residue in which the water was completely evaporated and turned into fine dust was blown away, and the dust was discharged from the container together with this air. Next, the discharged dust was separated from air using a cyclone type dust collector. In this cyclone type dust collector, the discharged air is swirled at high speed,
The air and dust are swirled in a vortex and only heavy dust is dropped to separate them. Dust separated by this cyclone type dust collector was collected in a dust collection box, and only air was diffused to the outside after contacting the catalyst. The structure of such a cyclone type dust collector is relatively simple, but since the air is swirled in a spiral shape, the structure must be machined extremely precisely. Further, even if the dust can be separated by swirling the air at a high speed, the fine dust cannot necessarily be separated and is scattered to the outside. From such a thing,
It was desired to develop a mechanism that can separate dust and air from the air with a simple structure.

[0014]

According to the present invention, there is provided a heat-resistant container for storing human waste, a heating means for heating the container to dry the human waste, and a plurality of blades for stirring the human waste stored in the container. A container having a plurality of spherical heat storage bodies housed in a container, an introducing pipe connected to the side surface of the container, and a toilet bowl connected to the upper end of the introducing pipe. In a human waste treatment device capable of evaporating and processing human waste by heating it by a heating means, a supply pipe for supplying air into the container, an exhaust pipe for communicating with the container to discharge vaporized water, and an on-off valve. A catalyst box connected to the exhaust pipe via the exhaust pipe, a dust collection box connected to the exhaust pipe via an open / close valve, and a collection bag built in the dust collection box for collecting dust from the air Human waste characterized by There is provided a management device.

[0015]

In the present invention, the human waste excreted in the toilet is passed through the shutter mechanism and then dropped through the introduction pipe to be stored in the drying pot. Since this drying pot is heated from the outside by a heater or the like, most of the stored human waste is evaporated as water vapor, which is a major component. This water vapor flows toward the catalyst box through the exhaust pipe. Hot air from a heating pipe is constantly supplied to the catalyst box, and the catalyst in the catalyst box is always warmed. In this state, when the vaporized steam flows into the catalyst box, it comes into contact with the catalyst, and the malodorous components contained in the steam are redox-reduced and changed to odorless. Therefore, no bad odor is emitted to the outside.

If the drying treatment is performed for a predetermined time,
The on-off valve on the exhaust pipe is closed, and at the same time, the on-off valve of the dust collection box is opened to connect the drying pot and the dust collection box. After that, compressed air is sprayed to the drying pot, and after the water is evaporated, dust is blown up and the dust is introduced into the dust collecting box together with the air from the exhaust pipe. Since a collection bag made of cloth or paper is built in the dust collection box, the residue is captured by this collection bag, and only clean air is diffused to the outside. This collection bag can capture even fine dust, and if a predetermined amount of dust is stored,
Dust can be discarded together with this collection bag. With such a configuration, since the cyclone type dust collector is not used, the structure is simple, and fine dust is not captured to contaminate the outside.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In the present embodiment, a case will be described in which the human waste processing apparatus is applied to a temporary toilet 1 which can be freely moved by itself.

FIG. 1 shows the appearance of the temporary toilet 1 in this embodiment, and the outer frame of the temporary toilet 1 has a three-dimensional box-like shape made of, for example, plastic or reinforced synthetic resin. The bottom of this temporary toilet 1 is a base 2 installed on the ground
The base 2 has a cubic shape, and a roof-mounted house 3 is placed on the top of the base 2. A door 4 is attached to the front of the house 3 so that the user can open and close the house 3 to enter and exit the house 3.

Inside the temporary toilet 1, a manure processing device 5 is fixed at a position above the base 2. A Western-style toilet 6 is fixed to the center of the upper surface of the human waste treatment device 5, and a cover 7 containing a motor and a cover 8 containing a catalyst are fixed to the left and right.

Next, FIG. 2 is a skeleton diagram showing the internal structure of the human waste treatment device 5 shown in FIG. The human waste treatment device 5 is assembled into a unit that can operate by itself, and is roughly divided into a drying mechanism, a blowing mechanism, a collecting mechanism, and a catalyst reducing mechanism.

First, a cylindrical drying pot 10 is provided on the right rear side of the human waste treatment device 5, and an introducing pipe 11 inclined upward is connected to the center of the side face of the drying pot 10. is there. The upper end of the introduction pipe 11 is the toilet bowl 6
A shutter 12 is interposed between the upper end of the introduction pipe 11 and the toilet bowl 6 to extend to the lower opening. A gear box 14 for stirring the stored human waste is placed on the upper part of the drying pot 10, and a motor 13 is connected to a side surface of the gear box 14. Therefore, the rotational force of the motor 13 is decelerated by the gear box 14 and the rotational axis direction thereof is changed. The gear box 14 and the upper portion of the motor 13 are covered with a cover 7. Further, a rectangular catalyst box 15 is vertically provided in the lower left part of the human waste treatment device 5. An exhaust pipe 26 is slightly L above the catalyst box 15.
The exhaust pipe 26 is connected to the center side surface of the ejector 27.

A slender cylindrical heating pipe 17 is provided at the innermost portion of the human waste treatment apparatus 5, and the tip of the heating pipe 17 is communicated with the lower side surface of the catalyst box 15. The heating pipe 17 is for sending hot air into the catalyst box 15 to heat the catalyst inside the catalyst box 15, and a blower 18 is connected to the opening end on the opposite side of the heating pipe 17. .. A disc-shaped lid plate 29 is closely attached to the upper surface of the drying pot 10.
Due to this, the drying pot 10 is closed. And the lid plate 29
An exhaust pipe 19 is fixedly attached to the inside of the drying pot 10, and the exhaust pipe 19 is communicated with the inside. This exhaust pipe 1
An upper end of an introducing pipe 21 is connected to the valve 9 via an opening / closing valve 20, and a lower end of the introducing pipe 21 is connected to a side surface of the heating pipe 17. A cleaning pipe 23 is connected to the tip of the exhaust pipe 19 via an opening / closing valve 22, and the tip of the cleaning pipe 23 communicates with the upper part of the dust collector 24. Further, a return pipe 25 is provided on the lower side surface of the dust collector 24.
The return pipe 25 communicates with the side surface of the introduction pipe 21 via the on-off valve 28.

Next, a blower 30 which is rotated by a motor is provided on the front surface of the human waste treatment device 5, and a blower pipe 31 which is an output of the blower 30 is branched to the left and right to form a pressure pipe 32 and a supply pipe. It is divided into 33. The ejector 27 is attached to the tip of the pressure pipe 32.
Is connected to the lower opening thereof to constantly supply air to the ejector 27. Further, the tip of the supply pipe 33 is connected to the lid plate 29 via an on-off valve 34, and the supply pipe 33
Is connected to the inside of the drying pot 10. In the middle of the supply pipe 33, a throttle pipe 35 having a small inner diameter is connected in a bypass shape so as to straddle the on-off valve 34.

Next, FIG. 3 shows a drying pot 1 in this embodiment.
0 shows the connection state of various pipes connecting the catalyst box 15, the dust collector 24, the toilet 6 and the like.

A shutter 12 is connected to the bottom of the toilet bowl 6, and a lower end of the shutter 12 is connected to an upper end of an introducing pipe 11 bent in a slightly V shape. The lower end of the introduction pipe 11 is connected to the center of the side surface of the drying pot 10.

Next, the drying pot 10 for evaporating the excreted excrement has a hollow cylindrical shape with a bottom at the bottom, and the bottom of the drying pot 10 has a disk shape for heating. The heated heater 16 is in contact therewith. A disc-shaped lid plate 29 is brought into close contact with the upper surface opening of the drying pot 10 to form a space closed by the drying pot 10 and the lid plate 29. The gear box 14 is fixed to the upper surface of the lid plate 29, and the rotary shaft 38 extending downward from the gear box 14 is directed toward the inner bottom of the drying pot 10 to rotate the rotary shaft 3
A plurality of stirring blades 39 are fixed around the lower end of 8.
Further, a plurality of spherical heat storage bodies 40 rotated by the stirring blades 39 are housed inside the drying pot 10. The heat storage body 40 is formed of a material having a high heat retaining property such as aluminum dioxide. A temperature sensor 41 is in contact with the side surface of the drying pot 10 and at a position slightly higher than the bottom.

The cover plate 29 is connected to an exhaust pipe 19 which communicates with the inside of the drying pot 10. The exhaust pipe 19 is branched into two parts, and the open / close valves 20 and 2 are respectively provided.
2 are connected. An introduction pipe 21 communicates with the one on-off valve 20, and a lower end of the introduction pipe 21 communicates with a side surface of the heating pipe 17. Also, the on-off valve 22
A cleaning pipe 23 is connected to the cleaning pipe 2.
No. 3 has its tip extended to the inside of the dust collector 24.
A collection bag 48 is housed inside the dust collector 24, and the collection bag 48 is formed in a bag shape with, for example, cloth or coarse paper, and the opening of the collection bag 48 is provided with the cleaning pipe 23. The tip is connected. A return pipe 25 is connected to the opposite side of the dust collector 24, and the return pipe 25 communicates with the outer circumference of the recovery bag 48.
The return pipe 25 communicates with the introduction pipe 21 via an opening / closing valve 28.

Next, a fan 44 driven by a motor 43 is housed inside the blower 30, and air blown by the blower 30 is blown by a blower pipe 31.
Be transmitted to. The blower pipes 31 are the pressurizing pipes 3, respectively.
2 and a supply pipe 33, and a pressure pipe 32.
Is connected to the lower end of the ejector 27. When the air from the blower 30 passes through the ejector 27, a negative pressure is generated inside the ejector 27 due to the circulation of the air. Further, the other branched end of the supply pipe 33 is connected to the lid plate 29 via an opening / closing valve 34, and the supply pipe 33 is in communication with the internal space of the drying pot 10. Also,
A throttle pipe 35 is interposed so as to straddle the on-off valve 34 in the middle of the supply pipe 33. Even if the on-off valve 34 is closed, the inside of the drying pot 10 is oxidized through the supply pipe 33 and the throttle pipe 35. It is designed to send the necessary air for.

Next, a fan 46 driven by a motor 45 is housed inside the blower 18, and a heating pipe 17 is connected to the air output side of the blower 18. A heater 47 is provided inside the heating pipe 17.
Is housed in the air blower 18 by the heater 47.
The air sent from is heated. The lower side surface of the catalyst box 15 communicates with the tip of the heating pipe 17. Inside the catalyst box 15, a filter 49 is filled in the lower part and a catalyst 50 is filled in the upper part. Therefore, the air heated by the heater 47 passes through the filter 49, is sucked by the negative pressure of the ejector 27 while warming the catalyst 50, and is diffused to the outside.

Next, FIG. 4 shows the arrangement of each member such as the toilet bowl 6, the drying pot 10 and the cover plate 29 in this embodiment. In FIG. 4, shutter blades 52 that can rotate in the horizontal direction are axially supported inside the shutter 12.
By swinging the shutter blades 52 left and right,
The toilet bowl 6 and the introduction pipe 11 are communicated or closed.

FIG. 5 is a rear view showing the arrangement of each part inside the human waste treatment apparatus 5 in this embodiment. In this figure, the state shown in the upper left of the configuration shown in FIG. 2 is shown.

FIG. 6 is a block diagram showing the control system in this embodiment.

The output of the temperature sensor 41 is connected to a temperature discriminating circuit 55, and the output of the temperature discriminating circuit 55 is connected to a central processing circuit 56 composed of a microcomputer or the like. The output of the instruction switch 57 for instructing the end of the use of the temporary toilet 1 is connected to the drying instruction circuit 58, and the output of the drying instruction circuit 58 is connected to the central processing circuit 56. .. In addition, the central processing circuit 5
A power switch 59 for starting not only the central processing circuit 56 but also all the operations in the human waste processing device 5 and instructing the end of use is connected to 6.

Next, the control output of the central processing circuit 56 is the shutter control circuit 60, the motor control circuit 61,
It outputs to the valve control circuit 62 and the heater control circuit 63, respectively. The shutter control circuit 60, the motor control circuit 61, the valve control circuit 62, and the heater control circuit 63 are each operated individually according to an instruction from the central processing circuit 56, and control each mechanism connected to each. .. First, the shutter 12 is connected to the output of the shutter control circuit 60, the motors 13, 43 and 45 are connected to the motor control circuit 61, and the opening / closing valves 20, 22, 2 are connected to the valve control circuit 62.
8 and 34 are independently connected. Further, heaters 16 and 47 are connected to the heater control circuit 63.

Next, the operation of this embodiment will be described.

<Maintaining the standby state>

Before carrying out the drying process of human waste by using the human waste processing device 5, the human waste processing device 5 must be held in a standby state in preparation for operation. the first,
The power switch 59 is turned on, and an instruction to use the human waste processing device 5 is transmitted to the central processing circuit 56. This instruction is transmitted from the central processing circuit 56 to the motor control circuit 61, the valve control circuit 62, and the heater control circuit 63.

First, the heater control circuit 63 uses the heater 4
7 is energized to heat the inside of the heating pipe 17. At the same time, the motors 43 and 45 are driven by the motor control circuit 61, and the air pressure-fed by the fan 44 driven by the motor 43 is transmitted to the ejector 27 via the blower pipe 31 and the pressure pipe 32. This ejector 27
When the air sent from the fan 44 flows inside, a negative pressure is generated inside the ejector 27, and the air inside the catalyst box 15 is sucked. Further, the motor 45 is driven to rotate the fan 46, and the fan 46 sucks air from the outside and sends the air to the heater 47 under pressure. This heater 47
When the air sent to the air contacts the air, the air is heated, and the heated air is supplied to the inside of the catalyst box 15 through the heating pipe 17. Therefore, the air heated by the heater 47 always warms the catalyst 50. In this way, the catalyst 50 is always warmed to a constant temperature, and the catalyst 50 is maintained at a temperature at which it can act as a redox.

In this way, the air flow path by the blower 30, the blower pipe 31, the pressure pipe 32, and the ejector 27, and the air flow path by the blower 18, the heating pipe 17, the catalyst box 15, and the ejector 27 are formed. In the standby state, these two flow paths are always formed.

<Use of human waste treatment device 5>

As described above, when the human waste processing apparatus 5 maintains the standby operation, the human waste can be processed by using the temporary toilet 1. First, a person who wants to use the temporary toilet 1 can open the door 4 to enter the inside of the house 3 and excrete human waste toward the toilet 6. The excreted human waste is temporarily held above the shutter 12.

<Evaporation and drying of excrement>

Next, when the toilet 6 is used inside the temporary toilet 1 and the user has finished the excretion, the excrement must be processed for the person who wants to use the temporary toilet 1 next. I won't. This process is started when the person who uses the toilet 6 presses the instruction switch 57. First, when the user presses the instruction switch 57, the signal is transmitted to the drying instruction circuit 58 and then to the central processing circuit 56. Therefore, the central processing circuit 56 instructs the shutter control circuit 60 to open the shutter 12. Then, the shutter blades 52 move horizontally to make the toilet bowl 6 and the introducing pipe 11 electrically conductive, and the human waste accumulated in the upper part of the shutter 12 is dropped into the introducing pipe 11 and flows into the drying pot 10. When it is determined that the human waste has flowed into the drying pot 10 after a predetermined time has passed, the shutter control circuit 60 instructs the shutter 12 to close the shutter blades 52. The shutter 12 is interposed between the toilet bowl 6 and the introduction pipe 11 so that the foul odor generated when the human waste is evaporated and dried is not released to the outside through the opening of the toilet bowl 6.

Simultaneously with the operation of the shutter control circuit 60, the central processing circuit 56 instructs the motor control circuit 61 to operate the motor 13. When the motor 13 is operated, the rotation output is transmitted to the gear box 14, and the gear inside the gear box 14 changes the deceleration and the rotation direction to rotate the rotary shaft 38 in the horizontal direction. By rotating the rotating shaft 38, the stirring blade 39 and the heat storage body 40 are rotated at the bottom portion of the drying pot 10.

At the same time, in response to an instruction from the central processing circuit 56, the valve control circuit 62 keeps the open / close valve 20 open and closes the open / close valves 22, 28, 34. By opening and closing this circuit, air flow paths of the blower 30, the blower pipe 31, the supply pipe 33, and the throttle pipe 35 are formed,
An appropriate amount of air is made to flow into the drying pot 10.
Then, from the inside of the drying pot 10, the exhaust pipe 19, the on-off valve 20, the introduction pipe 21, the heating pipe 17, the catalyst box 15
Is formed, and the air is sucked by the ejector 27. In addition, as described above, the air from the blower 30 is constantly supplied into the ejector 27 via the blower pipe 31 and the pressurizing pipe 32, and a negative pressure is generated in the ejector 27. In this way, the air flows from the blower 30, the blower pipe 31, the supply pipe 33, and the throttle pipe 35 into the drying pot 10, and the air in the drying pot 10 connects the exhaust pipe 19, the on-off valve 20, and the introduction pipe 21. There is a path through which the fluid flows in the direction of the heating pipe 17. A small amount of air is dried by the squeezing pipe 35.
The reason for supplying into 0 is to promote oxidation by contacting human waste with air when heated.

Simultaneously with these operations, the central processing circuit 56 sends a signal to the heater control circuit 63 to energize the heater 16 to heat the bottom portion of the drying pot 10. Therefore, the bottom of the drying pot 10 is heated by the heater 16,
The human waste in the drying pot 10 is raised to the boiling point, and most of the components, water, is evaporated as water vapor.

During the heating by the heater 16, the rotating shaft 38 is rotated by the gear box 14, and the stirring blade 39 is rotated at the bottom portion of the drying pot 10. The stirring blades 39 cause the plurality of heat storage bodies 40 to rotate at the bottom portion of the drying pot 10 and act to stir the human waste. Then, the human waste is mixed so as to be warmed to a uniform temperature, and the heat stored in the heat storage body 40 is transferred to the human waste around the surface from the surface thereof to heat the human waste. Since the heat storage body 40 has a spherical surface and a large surface area, the drying speed of human waste is increased, and the water content of human waste is gradually evaporated.

Each part operates in this way, and the steam evaporated in the drying pot 10 communicates with the inside of the exhaust pipe 1.
9. It passes through the on-off valve 20 and flows from the introduction pipe 21 to the heating pipe 17. Evaporated water vapor is heating pipe 1
When it flows into the inside of 7, the steam is mixed with the air heated by the heater 47, and the steam whose temperature has dropped during flowing is heated again by the hot air of the heater 47 and sent to the catalyst box 15. Filter 49 of this catalyst box 15
The air that has passed through contacts the surface of the catalyst 50, and the malodorous component contained in the air is redox-oxidized by the catalyst 50, and the component is transformed into an odorless component. After this, the catalyst box 15
After passing through, the air is sucked by the ejector 27 and diffused to the outside. By such a route of the air, the air circulates inside the human waste treatment device 5, and the water vaporized inside the drying pot 10 is diffused into the atmosphere while being subjected to odorless treatment.

<Cleaning of the drying pot 10 and separation of dust>

As described above, the heating of the drying kettle 10 by the heater 16 and the stirring by the stirring blades 39 and the heat storage body 40 cause the water contained in most of the human waste stored in the drying kettle 10 to evaporate. Will be. At the end of the drying process, the non-evaporable components such as fibrous components of the human waste remain as a residue in the drying pot 10. When such a residue remains in the drying kettle 10, the residue adheres to the inner wall of the drying kettle 10 for long-term use, and finally it becomes impossible to perform the drying process of human waste. Therefore, when one drying process is completed, the residue and dust remaining in the drying pot 10 are removed and cleaning is performed. In this cleaning process, in order to prevent the residue and dust removed from the drying pot 10 from being diffused as they are in the atmosphere and from adhering to the catalyst box 15 in the flow path, only the residue and dust are removed. Must be separated from air and recovered. This cleaning and dust separation processing is continuously and automatically performed when it is determined that all the human waste in the drying pot 10 has been dried,

Now, when the above-mentioned drying process is completed, the drying pot 1
There is no human waste in 0, but since the heat from the heater 16 is still supplied, the temperature on the side surface of the drying pot 10 rises. This temperature change is detected by the temperature sensor 41 and the signal is transmitted to the temperature discriminating circuit 55. The temperature discriminating circuit 55 transmits the result to the central processing circuit 56, makes a self-determination that all the water in the drying pot 10 has evaporated, and then starts the cleaning process. By the judgment of the central processing circuit 56, a signal is first transmitted to the heater control circuit 63 to stop energization of the heater 16 and stop the heating of the drying pot 10. Next, a control signal is transmitted to the valve control circuit 62 to open the opening / closing valves 22, 28, 34 and at the same time close the opening / closing valve 20. Then, the air pressure-fed from the blower 30 is blown by the blower pipe 31, the supply pipe 33, and the on-off valve 3.
The residue and dust remaining in the drying cauldron 10 are blown off by spraying through the drying cauldron 4 into the drying cauldron 10. Also, the drying pot 10
From the exhaust pipe 19, on-off valve 22, cleaning pipe 2
3, a path through which air flows from the dust collector 24, the return pipe 25, the opening / closing valve 28, and the introduction pipe 21 in this order is formed. When the opening / closing valve 34 is opened, strong air is jetted into the drying pot 10, the residue and dust remaining in the drying pot 10 are blown off, and the blown off dust is discharged together with the air to the exhaust pipe 19. On-off valve 2
0, it passes through the cleaning pipe 23 and flows into the inside of the recovery bag 48. In this recovery bag 48, the air passes, but the dust is caught on the surface thereof, and the dust and the air are separated. Only dust is collected by the collecting bag 48, and only purified air flows into the heating pipe 17 through the return pipe 25, the opening / closing valve 28, and the introduction pipe 21. Since the air from the blower 18 is flowing in the heating pipe 17, the air passes through the catalyst box 15 together with the flow of the air, is sucked by the ejector 27, and is diffused to the outside. Further, since the motor 13 continues to operate even while air is being jetted by opening the on-off valve 34, the rotary shaft 38, the stirring blade 39, and the heat storage body 40 are respectively in the drying pot 10.
Is rotating inside. Therefore, the heat storage body 40 is rotated at the bottom portion of the drying pot 10, and the residue adhered to the bottom and inner wall of the drying pot 10 is finely crushed and removed. In this way, by the jetting of air from the tip of the supply pipe 33 and the removal action by the rotation of the heat storage body 40, the drying pot 1
The residue inside 0 will be removed cleanly.

<Switching to standby state>

As described above, if the air pressure from the blower 30 is ejected from the tip of the supply pipe 33 into the drying pot 10 to remove the residue and dust, it is for the person who uses the temporary toilet 1 next time. First, the human waste processing device 5 must be returned to the standby state. In this case, when the above-mentioned cleaning process is completed for a predetermined time, the central processing circuit 56 sends a signal to the motor control circuit 61 and the valve control circuit 62.
As a result, the motor 13 stops its operation and the stirring blade 39 stops rotating. Further, the open / close valve 20 is opened and at the same time the open / close valves 22, 28, 34 are closed. Therefore, the flow path of the air is changed, and the air from the blower 30 flows through the blower pipe 31, the supply pipe 33, and the throttle pipe 35, the flow rate of which is reduced and the air is supplied into the drying pot 10. Further, the air in the drying pot 10 is transmitted to the heating pipe 17 via the exhaust pipe 19, the opening / closing valve 20, and the introduction pipe 21. Further, since the motor 45 in the blower 18 is constantly operating and the heater 47 in the heating pipe 17 is also operating, the air supplied from the blower 18 is the heater 4
The hot air is supplied to the inside of the catalyst box 15 by being heated in contact with 7. Thus, the catalyst 50 in the catalyst box 15 is always kept at the temperature required for the action of redox. By forming such an air flow path and keeping the temperature of the catalyst 50 warm, the process stands by for the next evaporation and drying process.

As described above, the human waste treatment device 5 repeats the standby, drying, evaporation and cleaning cycles. In such a cycle, water vapor, which is a major component of human waste, is evaporated and the residue in the drying pot 10 can be automatically cleaned. Therefore, even if the closed drying pot 10 is used for a long period of time, no residue or dust is accumulated inside, and the human waste treatment device 5 can be used for a long period of time. Also,
When collecting residues and dust, a cyclone dust collector is not used, and air and dust are separated by a collection bag. Therefore, the structure is simple and each fine dust can be reliably captured, so that air pollution is not generated. In addition, the collected dust can be discarded together with the collection bag, so that it can be disposed of sanitarily. 7, FIG. 8, FIG. 9, and FIG. 10 are flowcharts showing the operation of the human waste processing apparatus 5 in this embodiment.

Next, FIG. 11 shows another embodiment of the present invention. In this embodiment, the same reference numerals are used for the same structures as the first embodiment shown in FIG. 3, and the description of the structure will be omitted.

A combustion furnace 66 having a hollow inside is provided in the lower portion of the drying furnace 10, and the lower surface of the drying furnace 10 is closely attached to the upper surface of the combustion furnace 66. This combustion furnace 66
The rear part (right side in FIG. 11) is slightly raised, and a partition plate 67 that is vertically raised is fixed inside. The partition plate 67 divides the interior of the combustion furnace 66 into two chambers, a combustion chamber 68 and a catalyst chamber 69. The catalyst 70 is filled in the inside of the catalyst chamber 69, and the exhaust pipe 65 communicates with the lower side surface of the catalyst chamber 69, and the tip of the exhaust pipe 65 is the ejector 2 described above.
It is connected to the negative pressure side of 7.

Next, an exhaust pipe 19 is connected to the lid plate 29 so as to communicate with the inside of the drying pot 10. The exhaust pipe 19 is branched into two, and one of the branched pipes is divided into two. It is connected to an introduction pipe 77 via an opening / closing valve 76, and the tip of the introduction pipe 77 is connected to a discharge port 78 opened at the bottom of the combustion chamber 68. The other branch of the exhaust pipe 19 is connected to a cleaning pipe 80 via an opening / closing valve 79, and the tip of the cleaning pipe 80 extends into the dust collecting box 81. A collection bag 82 made of cloth or coarse paper is stored inside the dust collection box 81.
The tip of the cleaning pipe 80 is attached to the opening. The tip of a return pipe 83 communicates with the side surface of the dust collection box 81, and the other end of the return pipe 83 is formed on the side surface of the combustion furnace 66 and on one side of the combustion chamber 68 (left side in FIG. 11). It is connected to the discharge port 84. A burner pipe 71 is connected to the side surface (left side in FIG. 11) of the combustion chamber 68 so as to communicate with the combustion chamber 68, and a blower 18 is connected to the tip of the burner pipe 71. The burner pipe 71 mixes air and fuel oil to generate a flame, and a fuel pump 73 for supplying a fixed amount of fuel oil is provided in the middle of the fuel pipe 72.
An oil tank 74 storing fuel oil 75 is connected to the upper end of the.

In this embodiment, when the human waste stored in the drying pot 10 is dried, the opening / closing valves 34 and 79 are used.
Is closed and the on-off valve 76 is opened. Then, the motors 13, 43, 45 are driven. Therefore, the air is blown from the blowers 18 and 30 by driving the motors 43 and 45, and a small amount of air is supplied from the blower 30 to the inside of the drying pot 10 through the supply pipe 33 and the throttle pipe 35. It At the same time, from the blower 30, the pressure pipe 3
Since air is supplied from 2 to the ejector 27, a strong negative pressure is generated in the ejector 27, and the air inside the catalyst chamber 69 is sucked through the exhaust pipe 65. Further, the air from the blower 18 flows into the combustion chamber 68 through the burner pipe 71, passes through the combustion chamber 68, and then is transmitted to the catalyst chamber 69. In this way, the blower 18, the burner pipe 71, the combustion chamber 68, the catalyst chamber 69, the exhaust pipe 65, the air flow path by the ejector 27, and the blower 3
0, blower pipe 31, supply pipe 33, throttle pipe 3
5, the flow path of the drying oven 10, the exhaust pipe 19, the opening / closing valve 76, the introduction pipe 77, and the discharge port 78, and the flow paths of the blower 30, the blower pipe 31, the pressure pipe 32, and the ejector 27 are formed.

With such an air flow, the fuel pump 73 is driven to sequentially supply the fuel oil 75 to the fuel pipe 72.
Spray from the tip of the blower 18 in the burner pipe 71
A flame flow is generated by mixing with the air sent from and burning it, and this flame is completely burned in the combustion chamber 68. Therefore, heat is generated by the flame that burns in the combustion chamber 68, and the heat is transmitted to the bottom of the drying pot 10 to heat the drying pot 10. Drying pot 10
When the human waste is heated, the human waste stored therein is boiled to evaporate its water content, and the water vapor flows through the exhaust pipe 19, the on-off valve 76, and the introduction pipe 77 together with the flow of air, and the combustion chamber 68 from the discharge port 78. Is released inside. Therefore, the water vapor evaporated from the human waste and its odorous components are reheated in the combustion chamber 68, and then flow into the catalyst chamber 69 and enter the catalyst 7
Contact 0. When the vaporized malodorous component comes into contact with the catalyst 70, the malodorous component is redox-oxidized and becomes odorless and flows into the exhaust pipe 65. Since the air inside the catalyst chamber 69 is sucked by the negative pressure of the ejector 27,
The flame flow generated by the burner pipe 71, the water vapor evaporated in the drying pot 10 and various components are diffused into the atmosphere.

Next, by spraying fuel oil from the tip of the fuel pipe 72 for a certain period of time to burn it in the combustion chamber 68, when the human waste stored in the drying cauldron 10 is completely evaporated, its temperature changes. Is detected by the temperature sensor 41,
We will move on to the cleaning process. When performing the cleaning process, the opening / closing valves 34 and 79 are opened and the opening / closing valve 76 is closed. Then, the air from the blower 30 is blown by the blower pipe 3
1, passing through the supply pipe 33 and the on-off valve 34, the drying pot 10
Inject strongly toward the inside of. Therefore, the drying pot 1
Residues and dust remaining inside 0 are blown off and pass through the exhaust pipe 19, the opening / closing valve 79, and the cleaning pipe 80,
It is sent to a collection bag 82 provided inside the dust collection box 81. In the recovery bag 82, residue and dust are attached to separate the residue and dust, and only clean air is moved toward the return pipe 83. Then, the purified air is returned to the return pipe 83.
Of the ejector 2 through the catalyst chamber 69 and the exhaust pipe 65.
It is sucked at 7 and diffused into the atmosphere. If such a cleaning process is performed for a certain period of time, it is determined that the inside of the drying pot 10 has been cleaned, and the motor 13 is stopped to rotate the rotary shaft 38, the stirring blade 39, and the heat storage body 40. To stop. At the same time, the amount of fuel oil supplied from the fuel pump 73 is reduced and the temperature in the combustion chamber 68 is lowered.
Then, by closing the on-off valves 34 and 79 and opening the on-off valve 76, the next drying and evaporation process is put on standby.

[0061]

As described above, according to the present invention,
Since it is possible to evaporate human waste by applying it to a temporary toilet, the operation is sanitary and the handling is extremely easy. Further, in order to prevent the malodor from spreading, the human waste is evaporated in a closed container, but the residue and dust left after drying must be removed. The residue and the dust are separated by a collection bag, and only the dust can be separated from the air, and the dust can be reliably captured.
For this reason, since a cyclone type dust collector as in the past is not used, the configuration is extremely simple. Further, the captured dust can be disposed of by removing the collection bag, so that the treatment such as maintenance becomes extremely easy.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing an example in which a human waste treatment device is applied to a mobile temporary toilet.

FIG. 2 is a skeleton diagram showing the inside of the human waste treatment device.

FIG. 3 is an explanatory diagram showing a connection state of pipes that connect each part of the human waste treatment device.

FIG. 4 is an exploded perspective view showing the vicinity of a drying pot and a toilet in an enlarged manner.

FIG. 5 is a layout view of the constitution of the human waste treatment device as viewed from the back side.

FIG. 6 is an explanatory diagram showing a control system of the human waste treatment device.

FIG. 7 is a flowchart showing the operation of the human waste treatment device.

FIG. 8 is a flowchart showing the operation of the human waste treatment device.

FIG. 9 is a flowchart showing the operation of the human waste treatment device.

FIG. 10 is a flowchart showing the operation of the human waste treatment device.

FIG. 11 is an explanatory diagram showing a pipe connection state of an apparatus according to another embodiment of the present invention.

[Explanation of symbols]

 1 Temporary Toilet 5 Human Waste Treatment Device 6 Toilet Bowl 10 Drying Pot 11 Introducing Pipe 12 Shutter 15 Catalyst Box 17 Heating Pipe 18 Blower 24 Dust Collector 30 Blower 38 Rotating Shaft 39 Stirring Blade 40 Heat Storage 47 Heater 50 Catalyst

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] May 26, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0050

[Correction method] Change

[Correction content]

As described above, the heating of the drying kettle 10 by the heater 16 and the stirring by the stirring blades 39 and the heat storage body 40 cause the water contained in most of the human waste stored in the drying kettle 10 to evaporate. Will be. At the end of the drying process, the non-evaporable components such as fibrous components of the human waste remain as a residue in the drying pot 10. When such a residue remains in the drying kettle 10, the residue adheres to the inner wall of the drying kettle 10 for long-term use, and finally it becomes impossible to perform the drying process of human waste. Therefore, if the drying process once is completed, the drying cauldron 10 and the remaining residue and dust in the removed thus will rows cleaning. Oite to the cleaning process, or is directly spread in residues and dust removed from the drying cauldron 10. atmospheric, in order to prevent from adhering to the catalyst box 15 in the flow path, the only residue and dust Must be separated from air and recovered. Process the separation of the cleaning and dust, when the raw sewage in the drying cauldron 10 is determined to have been all dried, Re performed automatically <br/> that continued.

Claims (1)

[Claims] 1. A heat-resistant container for storing human waste, a heating means for heating the container to dry the human waste, a stirring means having a plurality of blades for stirring the human waste stored in the container, and a container It consists of a plurality of spherical heat accumulators stored in the container, an introduction pipe connected to the side of this container, and a toilet bowl connected to the upper end of the introduction pipe. In a human waste treatment device capable of evaporating and treating the gas, a supply pipe for supplying air into the container, an exhaust pipe for communicating with the container for discharging vaporized water vapor, and an exhaust pipe connected through an on-off valve A human waste treatment device comprising a catalyst box, a dust collection box connected to an exhaust pipe via an opening / closing valve, and a collection bag built in the dust collection box for collecting dust from the air.