JP2002186998A - Desiccating treatment apparatus of night soil - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a desiccating treatment apparatus of night soil which has such a comparatively simple structure that is used as a provisional toilet at a place such as a work field and a tourist resort and which is capable of vaporizing water in night soil quickly and recover solid residue easily. SOLUTION: There is provided a heat air supply pipe 5 which end is opened at the bottom part of a night soil desiccating container 31 rotating in the slanted condition with accommodation of a heat reserving sphere 21 and the water contained in the night soil is vaporized by blowing the heat air therein directly from a heat air generator 3, and the solid residue remained after desiccation is blown off by the heat air to a cyclone 6 where the solid matter is separated and recovered.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technology for drying filth such as human waste, for example, at a construction site without a purification device, at an event site, at a disaster site, or at a mountain sightseeing facility where transportation is inconvenient, etc. The present invention relates to a filth drying apparatus capable of drying and processing well.

[0002]

2. Description of the Related Art Conventionally, as a waste drying apparatus as described above, for example, a human waste drying apparatus described in JP-A-2-40280 is known.

[0003] The human waste drying apparatus described in the above-mentioned publication has a drying pot stored in an outer box, and is placed in a drying pot together with ceramic or stainless steel heat storage balls previously placed in the drying pot. The hot water from the oil or gas burner is supplied between the outer box and the drying kettle via a burner pipe while stirring the input human waste by the stirring blade, thereby evaporating the moisture in the human waste. .

Japanese Patent Application Laid-Open No. Hei 7-136640 discloses a rotary drying pot, a heater unit having a high-frequency coil, a metal stirring ball housed in the drying pot,
The stirring ball has a baffle that hinders free movement, and the heating unit electromagnetically heats the drying pot and the metal stirring ball by the heater unit while rotating the drying pot containing the stirring ball together with the waste. There is disclosed a human waste drying apparatus in which moisture in human waste is evaporated, and the evaporation residue is suctioned and removed by a vacuum dust collector.

[0005]

However, among the above-mentioned conventional waste drying apparatuses, in the human waste drying apparatus described in Japanese Patent Application Laid-Open No. 2-40280, the human waste in the drying pot is dried at the bottom of the outside of the drying pot. It is difficult to heat the entire bottom of the drying oven evenly due to the method of heating with the hot air from the burner from above, and the air passing through the heat exchange pipes arranged around the top of the drying oven is forced into the drying oven. Although a part of the heat is recovered by injecting into the air, there is a problem that the heat efficiency is not good. In addition, a fan for sucking and discharging hot air and a blower for blowing air into the drying oven through a heat exchange pipe are required, which inevitably increases the size of the apparatus. There is a problem that it is necessary to clean the inside of the drying pot every predetermined period in order to remove the solids accumulated in the drying tank.

[0006] The human waste drying apparatus described in Japanese Patent Application Laid-Open No. Hei 7-136640 is provided with a vacuum recovery machine for removing evaporation residues accumulated in a drying pot,
Although maintenance such as periodic cleaning of the drying pot is not required, the insertion position of the cleaning pipe is fixed, so it is difficult to sufficiently remove solids widely scattered at the bottom of the drying pot, and electromagnetic heating In order to efficiently heat the bottom and side surfaces of the drying pot, the electric capacity increases, the heater unit becomes large, and the collecting machine and the exhaust mechanism for discharging the evaporated vapor of the drying pot, collecting after the drying is completed There is a problem that the entire structure, including the lifting mechanism for inserting the cleaning pipe of the machine into the drying pot, must be complicated and large, and solving these problems is the conventional waste drying. This has been a problem in processing equipment.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems in a conventional waste drying apparatus, and does not require a complicated structure, has high thermal efficiency, and quickly evaporates moisture in the waste. It is an object of the present invention to provide a filth drying apparatus which can perform a waste solid matter easily and can collect and process the residual solid matter.

[0008]

According to a first aspect of the present invention, there is provided a waste drying apparatus having a heat insulating property, a drying container for storing waste, a hot air generating means for generating hot air, and a hot air generating means at one end. A hot air supply pipe that is connected to the other end and that opens to the bottom of the drying container and sends hot air into the drying container;
A discharge pipe having one end connected to the top of the drying vessel;
A powder separation unit connected to the other end of the discharge pipe for separating solid matter contained in exhaust gas from the discharge pipe; a deodorizing unit connected to an exhaust port of the powder separation unit; and a powder separation unit attached to the powder separation unit. A collecting container for collecting the solid matter separated by the powder separating means, wherein the drying container is rotatably supported about a rotation axis inclined with respect to a horizontal direction, and a plurality of the drying containers are provided in the drying container. And the configuration of such a waste drying apparatus is a means for solving the above-mentioned conventional problems.

[0009] As an embodiment of the apparatus according to the present invention, in the waste drying apparatus according to the second aspect, a configuration is provided in which a convex portion and / or a concave portion are provided on the inner surface of the drying container.
Similarly, as an embodiment, in the filth drying apparatus according to claim 3, the drying container is provided with a substantially horizontal surface. In the filth drying apparatus according to claim 4, the hot air generating means is a gas turbine generator. In the waste drying apparatus according to the fifth aspect, a waste distribution inlet for allowing waste to flow into the drying container, a hot air supply pipe, and a discharge pipe having a lid covering an opening of the drying container. The present invention is characterized in that such a configuration in the waste drying apparatus is used as means for solving the above-mentioned conventional problems.

In the apparatus according to the sixth aspect of the present invention, a seal mechanism is provided for sealing between the drying container and a lid for covering the opening of the drying container. In the apparatus according to claim 7, an introduction pipe is provided between the lid covering the opening of the drying container and the air suction port of the hot air generating means, and as an embodiment, in the apparatus according to claim 8, ,
One end of the discharge pipe is attached to a substantially central portion of the lid covering the opening of the drying container, and the other end of the hot air supply pipe is guided to the drying container bottom from a portion other than the central portion of the lid,
It is characterized in that the hot air jet direction from the hot air supply pipe is at an angle of 0 to 90 ° with respect to the horizontal plane.

Further, as an embodiment of the apparatus according to the present invention, the waste drying apparatus according to claim 9 is provided with a first bypass for guiding a part of the hot air from the hot air generating means to the deodorizing means. The apparatus according to claim 10 is characterized in that a second bypass for guiding the hot air from the hot air generating means to the deodorizing means is provided until a predetermined time elapses from the start of the hot air generating means. Thus, the configuration of such a waste drying apparatus is used as means for solving the above-mentioned conventional problems.

[0012]

In the waste drying apparatus according to the first aspect of the present invention, the end of the hot air supply pipe is opened at the bottom of the drying vessel, and the hot air from the hot air generating means is collected in the drying vessel. Therefore, the efficiency of heat transfer is extremely high, moisture in the waste evaporates quickly, and drying is completed in a short time. Also,
When the solid content as the evaporation residue is depleted of water, it is further heated by high-temperature hot air, oxidized to ash, and blown off by powder separation means such as a cyclone, where it is separated and stored in a collection container. And disposed of as appropriate. The hot air from which the solids have been separated by the powder separating means is released to the outside air through a deodorizing means using a catalyst such as platinum, so that the surrounding environment is not harmed by the bad odor. In addition, since the drying container stores the heat storage ball and rotates in an inclined state, the heat storage ball falls by its own weight in the drying container like a ball mill, thereby improving the stirring efficiency. , And the residual solid is further finely pulverized. Further, since there is nothing other than the heat storage ball in the drying container, there is little trouble even when foreign matter is mixed in the waste.

[0013] As an embodiment of the waste drying apparatus according to the present invention, in the apparatus according to the second aspect, since the unevenness portion is provided on the inner surface of the drying container, the heat storage spheres fall in the container at random and heat storage. Since the moving trajectory of the sphere becomes irregular, the stirring efficiency and the pulverization efficiency of the residual solid matter are improved. Similarly, in the waste drying apparatus according to claim 7, since the introduction pipe connected to the air suction port of the hot air generating means is provided on the lid covering the opening of the drying container, the drying container rotates. Even if hot air containing a malodorous component leaks from the sealing portion of the lid that comes into sliding contact with the lid, the hot air is again heated by the hot air generating means and circulates through the drying container, so that the odor does not diffuse to the surroundings.

Further, as an embodiment of the waste drying apparatus according to the present invention, one end of the discharge pipe is located substantially at the center of a lid covering the opening of the drying vessel, The other end of the supply pipe is guided from a portion other than the center of the lid to the bottom of the drying container, and the direction of jet of hot air from the hot air supply pipe forms an angle of 0 to 90 ° with respect to a horizontal plane. Because the hot air blown into the drying container turns around inside the drying container like a cyclone, the efficiency of heat transfer to the waste is improved and the solid residue is quickly sent from the discharge pipe to the powder separating means. become.

Also, the waste drying apparatus according to the ninth aspect of the present invention includes a first bypass, and a portion of the hot air from the hot air generating means is guided to the deodorizing means. Since the catalyst of the means is constantly heated, the catalytic action is activated, and the deodorization is completely performed.

Further, as an embodiment, the waste drying apparatus according to claim 10 is provided with a second bypass so that hot air from the hot air generating means is guided to the deodorizing means for a predetermined time when the hot air generating means is started. Because it is
Immediately after the start-up of the device, the low-temperature hot air that has passed through the filth in the cold state contacts the catalyst that is not sufficiently heated, so that the malodor components in the hot air are released to the atmosphere without being decomposed. No more.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the drawings.

FIGS. 1 to 3 show, as a first embodiment of a waste drying apparatus according to the present invention, an example in which the waste drying apparatus is applied to human waste processing in a temporary toilet, and FIG. 1 shows the overall structure thereof. FIG. 2 is an enlarged view showing the structure of a waste drying apparatus, and FIG. 3 is an enlarged view showing the structure of a bypass provided between a hot air generator and a deodorizer of the processing apparatus.

A waste drying apparatus 30 shown in FIG. 1 includes a drying container 31 for storing waste to be treated, that is, human waste in this embodiment, a hot air generator 3 as hot air generating means,
One end is connected to the hot air generator 3, and the other end penetrates the lid 35 of the drying container 31, and a hot air supply pipe 5 for introducing the hot air generated in the hot air generator 3 into the drying container 2.
A cyclone 6 as a powder separating means for separating solid matter in powdered human waste contained in hot air;
5, a discharge pipe 7 for communicating the drying vessel 2 with the cyclone 6, a deodorizer 8 connected to the exhaust port of the cyclone 6 as deodorizing means, and a cyclone 6 removably mounted on the bottom of the cyclone 6. It mainly comprises a collection container 6a for storing solid matter in human waste separated by the above.

The drying container 31 has an abacus-shaped outer shape in which two conical containers are joined, has a heat insulating structure in which a heat insulating material 31c is interposed between an outer shell material 31a and an inner lining material 31b, and has a bearing. 32 and 33 make the axis of rotation about 45 °
The container 34 is rotatably driven by a motor 34 to agitate the dirt in the container together with the heat storage ball 21.

The lid 35 covering the opening of the drying container 31 is connected to a temporary storage container 9 for wastes through an inlet valve 9a, and the discharge pipe 7 and the hot air supply pipe 5 are attached in a penetrating state. The end of the hot air supply pipe 5 is open at the bottom of the drying container 31. Also,
The lid 35 is provided with a spring 35a and a seal plate 36. The spring 35a presses the seal plate 36 against the open end of the drying container 31 to seal between the lid 35 and the rotating drying container 31. It is to be done.

The waste inflow pipe 10 connected to the temporary storage container 9 via an on-off valve 10a is connected to a toilet S of a temporary toilet.

The deodorizer 8 contains a catalyst such as platinum, for example. The hot air that has passed through the filth is decomposed into malodorous components such as skatole and mercaptan and then released into the atmosphere. It is to be released.

Between the deodorizer 8 and the hot air generator 3, the hot air generator 3 and the deodorizer are heated to heat the catalyst contained in the deodorizer 8 and keep the catalyst constantly activated. 8 is provided with a bypass directly connected.

FIG. 3 shows the structure of such a bypass. The bypass comprises a first bypass 15 and a second bypass 16, and the elbow immediately before the hot air supply pipe 5 enters the drying vessel 2. It is provided between the section and the deodorizer 8.

The second bypass 16 has a valve 16a, and a first bypass 15 is provided at a position straddling the valve 16a. The first bypass 15 has an orifice 15a in a flow path. Therefore, a part of the hot air from the hot air generator 3 is always supplied to the deodorizer 8 via the first bypass 15 irrespective of the opening and closing of the valve 16a.
Since the catalyst is always kept in an active high temperature state, it is possible to completely decompose the malodorous components in the hot air.

On the other hand, with respect to the second bypass 16, the hot air from the hot air generator 3 is sent to the deodorizer 8 by opening the valve 16a, and is not blown into the filth. By opening the valve 16a until a predetermined time elapses from the start, the drying process of the filth is not substantially started until the catalyst of the deodorizer 8 is sufficiently heated. Will not be released. In addition, by using the electric valve as the valve 16a, automatic opening / closing control of the valve 16a linked with the timer becomes possible.

In this embodiment, a portable micro gas turbine generator (100 V-2.6 kW) manufactured by Nissan Motor Co., Ltd. was used as the hot air generator 3. However, the heat efficiency is reduced and the exhaust temperature is increased to about 500 ° C.

Next, the process of treating waste in the waste drying apparatus 30 having the above structure will be described.

First, the waste in the toilet S is sent to the temporary storage container 9 through the waste inflow pipe 10 together with the flush water in the flash tank T. At this time, the on-off valve 10a is open and the inlet valve 9a is closed.

When the amount of waste in the temporary storage container 9 reaches a predetermined amount, the inflow valve 9a is opened, and the waste flows into the drying container 2.

When the water level sensor (not shown) detects that the amount of waste in the drying container 31 has reached a predetermined level, the hot air generator 3 starts operating, and the hot air is passed through the hot air supply pipe 5 so that the hot air flows into the waste. Blown directly into In the case of such a flush toilet, since the amount of waste in the drying container 31 is almost determined by the amount of flush water, the operation of the hot air generator 3 is started by counting the number of flushes instead of the water level sensor. It is also possible.

The hot air introduced into the waste in the drying container 31 is heated as bubbles or directly through the heat storage ball 21 to evaporate the moisture in the waste.

When the amount of moisture is reduced, for example, when the level of filth drops below the opening of the hot-air supply pipe 5, the motor 34 is operated to rotate the drying vessel 31 at a predetermined speed. The heat storage sphere 21 and the inner wall of the drying container 31 transfer heat to the waste and promote the evaporation of moisture, and the residual solid matter that has lost moisture due to the rotation and fall of the heat storage sphere 21 due to its own weight is further finely crushed. You.

The fine powdery or ash-like solid residue is blown by hot air to a cyclone 6 through a discharge pipe 7, where it is separated from a hot air stream and collected in a cyclone 6 collection container 6a. And disposed of appropriately.

The hot air from which the residual solid matter has been removed in the cyclone 6 is guided to the deodorizer 8, where the malodorous components contained in the hot air are decomposed by the catalytic action and released into the atmosphere. At this time, the catalyst in the deodorizer 8 is the hot air generator 3
Is heated by the hot air sent through the first bypass 15 or the second bypass 16 and is sufficiently activated, so that the odorous component can be completely decomposed and treated.
No bad smell leaks out.

The temperature inside the drying container 2 or the inside of the discharge pipe 7 is detected, and when it is detected that the temperature equal to or higher than a predetermined value has continued for a predetermined time or more, it is regarded that the waste disposal has been completed, and the hot air generator 3 and The motor 34 stops and prepares for the next operation start.

In the above-mentioned waste drying apparatus 30, irregular inner surfaces of the rotary drying container 31 can be provided.

FIG. 4 is a cross-sectional view showing an example of the shape of such a drying container 31. The drying container 31 shown in the figure has projections 38 at several places on the inner surface thereof. By forming the portion 38, the movement of the heat storage sphere 21 that rotates and falls under its own weight with the rotation of the drying container 31 becomes random, and the movement trajectory of the heat storage sphere 21 becomes irregular. The pulverization efficiency is improved, and finer processing can be achieved.

Further, in the waste drying apparatus 30, an introduction pipe can be provided between the hot air generator 3 and the seal between the drying container 31 and the lid 35.

FIG. 5 shows this specific structure, in which the drying vessel 31 and the seal plate 3 in the lid 35 are shown.
A seal cover 40 is attached to the sliding contact portion with No. 6, and
The seal cover 40 and the air inlet 3a of the hot air generator 3
An introduction pipe 41 is provided therebetween.

That is, the drying container 31 and the lid 35 are
As described above, it is sealed by the seal plate 36 via the spring 35a. However, even if the hot air in the drying container 31 leaks due to the rotation of the drying container 31,
The gas containing the offensive odor component is the air intake port 3a of the hot air generator 3.
, And heated again by the hot air generator 3 and circulated through the processing apparatus, so that the emission of odor can be effectively prevented.

[0043]

As described above, according to the first aspect of the present invention,
The waste drying apparatus according to the present invention is provided with a hot air supply pipe opening at the bottom of the drying container rotating with the heat storage sphere stored and rotated in an inclined state, and powder separation means connected to the drying container via a discharge pipe. Since the hot air from the hot air generating means is directly blown into the waste collected in the drying container, the moisture in the waste can be efficiently evaporated, and the heat storage ball falls by its own weight in the drying container. Thus, the stirring efficiency and the pulverizing efficiency of the residual solid can be improved, and the residual solid blown off by the hot air can be easily collected by the powder separating means. In addition, it has an extremely excellent effect that filth such as human waste can be completely treated.

In the apparatus according to the second aspect of the present invention, since the unevenness is provided on the inner surface of the drying container, the moving trajectory of the heat storage sphere in the container becomes irregular, so that the stirring efficiency is improved. In addition, in the apparatus according to the seventh aspect, an introduction pipe is provided between the lid covering the opening of the drying container and the air inlet of the hot air generating means. Therefore, even if a gas containing a malodorous component leaks from the sealing portion between the drying container and the lid, the gas is heated by the hot air generating means and circulates through the apparatus, so that an excellent effect that odor can be prevented from being emitted. Is brought.

Further, as an embodiment of the waste drying apparatus according to the present invention, one end of the discharge pipe is located substantially at the center of the lid covering the opening of the drying container, The other end of the supply pipe is guided from a portion other than the center of the lid to the bottom of the drying container, and the direction of jet of hot air from the hot air supply pipe forms an angle of 0 to 90 ° with respect to a horizontal plane. Therefore, since the hot air blown into the drying container turns inside the drying container, the efficiency of heat transfer to the waste can be improved, and the solid residue can be quickly sent to the powder separating means, Since the waste disposal apparatus according to the ninth aspect includes the first bypass for guiding a portion of the hot air from the hot air generating means to the deodorizing means, the deodorizing action is performed by constantly activating the catalyst of the deodorizing means. Complete Since the waste disposal apparatus according to claim 10 is provided with the second bypass for guiding the hot air from the hot air generating means to the deodorizing means for a predetermined time when the hot air generating means is started, An excellent effect is obtained that the emission of offensive odor components to the atmosphere can be prevented immediately after the start of the apparatus.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing the entire configuration in a case where a waste drying apparatus according to the present invention is applied to human waste processing in a temporary toilet as a first embodiment of the present invention.

FIG. 2 is an enlarged view showing the structure of the waste drying apparatus in FIG. 1 in detail.

FIG. 3 is a schematic explanatory view showing an example of a bypass structure connecting a hot air generating means and a deodorizing means.

FIG. 4 is an explanatory sectional view showing another example of the shape of the drying container.

FIG. 5 is a schematic explanatory view showing a state of sealing and piping of a lid in a rotary drying container.

[Explanation of symbols]

 Reference Signs List 30 filth drying apparatus 31 Drying container 3 Hot air generator (hot air generating means) 5 Hot air supply pipe 6 Cyclone (powder separating means) 6a Collection container 7 Discharge pipe 8 Deodorizer (deodorizing means) 15 First bypass 16 Second bypass 21 heat storage ball 38 convex part 41 introduction pipe

Continued on the front page (72) Inventor Masaaki Saito 81-2 Shiratori-cho, Shiratori-cho, Omihachiman-shi, Shiga Prefecture Garden Place Ichibankan 102 F-term (reference) 3L113 AA07 AB02 AC01 AC58 AC68 AC87 BA37 DA11 DA14 4D059 AA01 BD01 BD13 BD22 BJ14 BK01 BK11 CB24 EA03

Claims (10)

[Claims] 1. A drying container having heat insulation properties for drying stored filth, hot air generating means for generating hot air, one end connected to the hot air generating means, and the other end open to the bottom of the drying container. A hot air supply pipe for feeding hot air into the drying vessel; a discharge pipe having one end connected to the upper portion of the drying vessel; and a solid substance contained in exhaust gas from the discharge pipe connected to the other end of the discharge pipe. A powder separation unit to be separated; a deodorization unit connected to an exhaust port of the powder separation unit; a collection container attached to the powder separation unit and collecting a solid separated by the powder separation unit; Is a rotatable drying apparatus characterized by being rotatably supported around a rotation axis inclined with respect to the horizontal direction, and having a plurality of heat storage balls stored in the drying container. 2. The waste drying apparatus according to claim 1, wherein a convex portion and / or a concave portion are provided on an inner surface of the drying container. 3. The waste disposal apparatus according to claim 1, wherein the drying container has a substantially horizontal surface. 4. The waste drying apparatus according to claim 1, wherein the hot air generating means is a gas turbine generator. 5. The drying container according to claim 1, wherein a waste flow inlet for introducing waste into the drying container, a hot air supply pipe, and a discharge pipe are provided on a lid covering an opening of the drying container. The waste disposal apparatus according to claim 4. 6. The waste drying process according to claim 1, further comprising a sealing mechanism for sealing between the drying container and a cover for covering an opening of the drying container. apparatus. 7. The hot air generator according to claim 1, wherein an inlet pipe is provided between the lid covering the opening of the drying container and the air inlet of the hot air generating means. Waste treatment equipment. 8. An end of the discharge pipe is attached to a substantially central portion of a lid covering an opening of the drying container, and the other end of the hot air supply pipe is guided from a portion other than the central portion of the lid to the bottom of the drying container. The waste drying process according to any one of claims 1 to 7, wherein the hot air is blown from the hot air supply pipe at an angle of 0 to 90 with respect to a horizontal plane. apparatus. 9. The waste drying apparatus according to claim 1, further comprising a first bypass for guiding a part of the hot air from the hot air generating means to the deodorizing means. 10. The apparatus according to claim 1, further comprising a second bypass for guiding the hot air from the hot air generating means to the deodorizing means until a predetermined time elapses from the start of the hot air generating means. A waste drying apparatus according to any one of claims 9 to 13.