JPH0453513A - Cleaning mechanism for urine dryer - Google Patents

Abstract

PURPOSE:To clear away residue and foreign matter remaining after evaporation without disassembling a receptacle by connecting an air supply pipe to a part of a receptacle, connecting one end of a discharge pipe for discharging air to a part of the receptacle and fitting a dust collector for separating dirt to the other end of the discharge pipe. CONSTITUTION:Urine in a urinal 2 is stored in a drying kiln 28 and heated by a heater 29 to start evaporation. When the above operation continues for a designated time, the urine is all evaporated and residue such as egesta, ash content and so on remain as powder. When the moisture is out, the temperature of the drying kiln 28 rapidly rises, and a temperature sensor 63 detects such a rise and transmits the detection result to a decision control circuit 67. A drying circuit 70 transmits a signal to an inverter circuit 72, a motor 47 rotates a fan 48 at a high speed, and a large amount of wind is jetted from a nozzle 49 to blow up the dirt in the drying kiln 28 and discharge the same from an exhaust pipe 15. In a dust collector 13, the dirt drops to be accumulated in a dirt box 50. The air is discharged to the outside from a duct 19 through a deodorizing device 14. The kiln is heated again by the heater 51 so that the moisture is evaporated and oxidized by a catalyst 58 to be discharged. Thus, cleaning for the interior of the drying kiln 28 is ended.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a urine treatment system that can treat urine outdoors without purification equipment, in transportation such as ships and trains, and in tunnels where vacuum cars cannot enter. Regarding dryers, especially
This invention relates to a cleaning mechanism for a urine dryer that can automatically remove and clean dust remaining after urine is dried.

[Conventional technology]

In ordinary households, urine excreted from the human body is usually discharged into sewers using flush toilets or the like, or temporarily stored in septic tanks and purified before being discharged into general rivers. However, at outdoor events such as sports days, trade fairs, and gatherings where large numbers of people gather, temporary toilets have been set up to temporarily dispose of urine.

In the past, movable temporary toilets were used to dispose of urine outdoors or in places without purification facilities. However, most of them were equipped with a container for storing urine, and the urine excreted from the human body was stored in this container. Therefore, after the event ends, it is necessary to dispose of the urine stored in the containers of the temporary toilets.This involves sucking up the collected urine with a vacuum car, etc., collecting it in a tank, and then disposing of it. The waste had to be purified or discharged, which was a time-consuming process.

In addition, transportation systems such as trains, buses, and ships that travel long distances are equipped with special tanks to store excreted urine. After processing, the common method was to collect the waste using a vacuum car at the final destination or relay point.

In this way, conventional methods of disposing of urine in temporary facilities or on mobile means of transportation are unmodern and extremely unethical, as most of the urine is stored in the same state as excreted by the human body and then collected. It was hygienic. For this reason, when used for a long time, excreted urine remains in the tank, causing a bad odor, which is not desirable from the perspective of modernizing treatment.

Under these circumstances, various methods have been proposed for more aggressive processing. For example, there is a method of sterilizing and deodorizing the urine by adding chemicals to the urine. This is widely used in transportation such as the Shinkansen, but it cannot be used for a long time because the chemicals circulate inside the tank, and it also has the disadvantage of increasing costs due to the use of chemicals.

A method of directly drying excreted urine using heat such as a burner is also being considered. However, since most of urine is water, removing this water requires a lot of energy and requires a long processing time.

In view of this conventional viewpoint, the same inventor as the applicant of the present application has proposed a urine disposal device in which rotating blades are provided in a tank for storing urine, 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, the urine was quickly dried and most of the water in the urine was evaporated. 172852, 1983
(Japanese Patent Application No. 190857 of 1982, etc.) In this newly proposed method for treating urine, urine must be dried by heating it in a closed container. Keeping the drying container tightly closed
This is to prevent the odor generated when urine evaporates from being released outside, and to prevent heat loss. In this sealed configuration, most of the water in the urine components can be evaporated, but some of the urine components, such as non-burnable scum, will remain in the container. Therefore, if this urine disposal device is used for a long period of time, cleaning work to remove residue and dust remaining in the container becomes necessary. This cleaning work required disassembling the sealed container and exposing the inside before cleaning.

This disassembly, cleaning, and reassembly work is time-consuming and has the drawback that the urine dryer cannot be used during the disassembly and cleaning work.

[Problem to be solved by the invention]

In view of the above-mentioned drawbacks, the present invention stores urine excreted from the human body in a container and evaporates it by heating the container from the outside, but cleans the residue and dregs left after evaporation without disassembling the container. The purpose is to

[Means for solving the problem] The present invention includes a heat-resistant container for storing urine, a heating means for heating the container, a stirring means for stirring the urine stored in the container, and a heat-resistant container for storing urine, a heating means for heating the container, a stirring means for stirring the urine stored in the container, In a urine dryer that consists of a plurality of spherical heat storage bodies, a part of the container is connected to an air supply pipe for blowing out air from the outside, and a part of the container is connected to a To provide a cleaning mechanism for a urine dryer, characterized in that one end of a discharge pipe for discharging air from inside a container is connected, and a dust collector for separating air and dust is attached to the other end of the discharge pipe. It is something.

[Effect]

In the present invention, urine is stored in a heat-resistant container, and the container is heated from the outside to evaporate water, which is a major component of the urine. A heat-resistant heat storage body such as ceramic is housed in this container, and since this heat storage body is stirred by a stirring means, the evaporation rate is rapid.
This allows for faster processing than simply heating the container.

Once all the urine in the container has evaporated, the system detects the change and blows compressed air from outside into the container. After evaporation, the human waste and ash contained in the urine remain in the container as fine dust, which is blown up by compressed air.
It is discharged to the outside through a discharge pipe connected to a part of the container. This air mixed with dust is then led to a dust collector,
Air and dust are separated in the dust collector.

By always performing this cleaning operation after the evaporation process, the container after evaporation is always kept clean.

Therefore, even if the urine dryer is used for a long period of time, there is no need for maintenance or inspection.

〔Example〕

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

In this embodiment, an example in which the present invention is applied to a urine dryer l that can be lifted by a crane or the like and moved by a truck or the like will be explained.

This urine dryer 1 has the shape of a hollow cubic unit made by bending a steel plate, for example, and can perform a series of processes such as storing and evaporating urine by itself. be. This urine dryer l is constructed as a single unit, and can be transported by truck or the like to construction sites, event venues, etc., and can be operated independently by supplying power.

A toilet bowl 2 that receives urine excreted from the human body is fixed to the front of the urine dryer 1. An introduction pipe 3 is connected to the lower part of the toilet bowl 2, and the lower end of the introduction vibrator 3 is used to collect urine. It is drawn into the inside of the dryer 1. On the side of this urine dryer 1, ventilation holes 5 and 6 are opened at the top and bottom to allow air to flow with the outside, and in the four corners of the top surface of the urine dryer 1 there are holes for lifting with a crane etc. The hanging ring 7 is fixed. By hanging a wire on this hanging ring 7 and lifting it with a crane, it can be moved to a required location.

Next, FIG. 2 is a perspective view showing the outline of the internal structure of this urine dryer 1.

A cylindrical evaporator 11 is provided in the urine dryer 1, and a cylindrical collection box 12 is installed on the side of the evaporator 11. A cyclone type dust collector 13 is installed in the upper center of this collection box 12.
A cylindrical deodorizer 14 is placed on top of the holder. The evaporator 11 is connected to an introduction vibe 3 that is continuous with the toilet bowl 2, and an exhaust pipe 15 is connected to the central side of the evaporator 11, and this exhaust pipe 15 is connected to the dust collector. 13, a blower 16 is provided at the bottom of the urine dryer 1, and a blower pipe 17, which is the output of the blower 16, is branched and connected to a control valve 18, respectively.
．． Connected to 19. This control valve 18 is connected to a cleaning pipe 20 connected to the evaporator 11, and the control valve 19 is connected to a preheating pipe 21 connected to the deodorizer 14.

In addition, FIG. 3 shows the evaporator 11 and collection box 1 in this embodiment.
2 is a piping diagram showing the state of connection of pipes connecting the deodorizer 14 and the like.

There is a tank chamber 25 for overflow in the middle of the introduction vibrator 3 connected to the toilet bowl 2, and this tank chamber 25
A water sensor 26 is housed inside to detect overflow. A control valve 27 for opening and closing the passage of the introducing vibrator 3 is interposed in the middle of the introducing vibrator 3.

Next, the lower half of the evaporator 11 is configured as an evaporating pot 28, and this evaporating pot 28 is made of a heat-resistant material such as metal or stainless steel. One end is connected. This evaporation pot 28
An exhaust pipe 15 connected to a dust collector 13 is connected to the upper side surface of the dust collector 13. A heater 29 as a heating means is wound around the side and lower part of the evaporating pot 28, and the outer periphery of the heater 29 and the evaporating pot 28 is surrounded by a heat insulating material 30 so as not to dissipate heat. A temperature sensor 63 for detecting the rising temperature of the evaporator 28 is embedded in the heat insulating material 30 close to the side surface of the evaporator 28 . Further, a drain pipe 31 is connected to the bottom of the evaporating pot 28, and a cock 32 for temporarily discharging urine accumulated in the evaporating pot 28 is attached to the middle of the drain pipe 31.

Next, a cylindrical joint part 35 is attached to the upper part of the evaporating pot 28, and a motor receiving part 36 which is open at the bottom and closed at the upper end is attached to the upper part of this joint part 35.
It is covered with The evaporating pot 28, the joint part 35, and the motor receiving part 36 form an airtight structure in which the inside of the evaporating pot 28 is closed from the outside. This joint part 3
Bearings 37 and 38 are provided on the upper and lower sides of 5, and the rotating shaft 39 is rotatably supported in the vertical direction by these bearings 37 and 38.

This rotating shaft 39 has an elongated cylindrical shape, and its lower end extends until it approaches the bottom of the evaporating pot 28, and stirring blades 40 are attached to three locations on the lower outer periphery. A plurality of spherical heat storage bodies 41 rotated by the stirring blades 40 are housed inside the evaporation pot 28 . The heat storage body 41 is made of a material with high heat retention, such as aluminum dioxide, for example.

A motor 42 is provided on the upper surface of the motor receiving portion 36.
is fixed, and the output shaft 43 of this motor 42 is directed inside the motor receiving part 36, and this output shaft 43
is connected to the upper end of the rotating shaft 39 via a joint 44. With this configuration, the output of the motor 42 is transmitted from the output shaft 43 to the rotation shaft 39, and the stirring blades 40 and the heat storage body 41 can be rotated inside the evaporation pot 28.

Next, inside the blower 16, a motor 47 and a fan 48 rotated by the motor 47 are housed. A blower vibrator 17 through which air blown by the blower 16 flows out is branched in the middle, and one end of the blower vibrator 17 is connected to a cleaning vibrator 20 via a control valve 18. The tip of the cleaning vibrator 20 enters the inside of the drying pot 28 through the joint portion 35, and the tip serves as a nozzle 49 directed toward the bottom of the evaporation pot 28. Further, a control valve 19 is interposed at the other branched end of the blower vibrator 17, and this control valve 1
A preheating vibrator 21 is connected to 9. The tip of the preheating vibe 21 is connected to the lower part of the deodorizer 14.

Further, the tip of the exhaust vibrator 15 is connected to the side of a cyclone type dust collector 13, and a collection box in which only the dust separated from the air is dropped and temporarily stored is placed at the bottom of the dust collector 13. 12 is connected.

A dust box 50 made of metal and having a bottom with an open top end is provided inside the collection box 12. A heater 51 for heating is wound around the outer periphery of the dust box 50. The heater 51 is surrounded by a heat insulating material 52 so as not to release heat to the outside. A lid 53 is tightly attached to the dust box 50 so as to close the upper opening thereof, and the lower end opening of the dust collector 13 is connected to the lid 53. A separating vibrator 54 is vertically installed to flow only the deodorized air, and the upper end of the separating vibrator 54 is connected to the bottom of the deodorizer 14.

Next, the deodorizer 14 functions to remove odor by oxidizing components that cause odor, such as ammonia and bromine, from the water vapor released from the evaporator 28. The deodorizer 14 has a hollow cylindrical shape, and a reheating heater 57 is provided at the bottom thereof, and a honeycomb-structured catalyst 58 is filled above the reheating heater 57. Note that inside the deodorizer 14, the catalyst 5
8, rectifying plates 59 and 60 are attached to the upper and lower positions. Further, an L-shaped duct 1-61 for discharging air to the outside is attached to the upper part of the deodorizer 14.

A more specific structure of the evaporator pot 28, joint portion 35, and motor receiving portion 36 is shown in FIG.

Next, FIG. 5 is an electric circuit diagram showing a control system in the present invention.

The input circuit 66 that receives various control signals includes a main switch 6
4, an evaporation switch 65 and a water temperature sensor 26 are connected, and the output of this input circuit 66 is transmitted to a control circuit 67. The temperature sensor 63 is inputted to this control circuit 67, and a standby circuit 68, a valve operating circuit 69, and a drying circuit 70 are connected to its output, and at the same time, a lamp is displayed to indicate that the urine dryer 1 is unusable. 71 is also connected.

The reheating heater 57 and the motor 47 of the blower 16 are connected to the output of this standby circuit 68. The control valves 18, 19, and 27 are connected to the valve operating circuit 69. Further, the drying circuit 70 for performing the drying operation includes an inverter circuit 72, a motor 42, and a heater 2.
9.51 is connected, and the output from the inverter circuit 72 is connected to the motor 47.

Next, the operation of this embodiment will be explained.

<Standby operation> First, before using this urine dryer 1, it must be in a standby ready state.

Therefore, first, the main switch 64 is turned on and the input circuit 66 is turned on.
An instruction to use the urine dryer 1 is transmitted to the control circuit 67 via the control circuit 67. Then, the control circuit 67 transmits a signal to the standby circuit 68, energizes the reheating heater 57 to heat it, and operates the motor 47. At the same time, a signal is also transmitted to the valve actuation circuit 69 to open the control valve 19, close the control valve 18 at the same time, and close the control valve 27 as well. When the push button 71 is actuated, the control valve 27 is opened for a short time).

Then, the fan 4 rotated by the motor 47
8 is transmitted to the preheating pipe 21 from the blower pipe 17, and air from outside is sent into the deodorizer 14. Due to the air from this preheating pipe 21, the heat generated by the reheating heater 57 flows in the direction of the catalyst 58 along with the flow of air.
The heat from the reheating heater 57 serves to warm the catalyst 58. At this time, the motor 47 is allowed to rotate at a low speed.The catalyst 58 is heated because the catalyst 58 made of platinum, platinum, etc. does not oxidize unless it is kept at a certain temperature or higher.

If components such as ammonia and urea are passed through the catalyst 58 while it is kept in a cold state, air containing a bad odor will be released from the duct 61. In order to prevent this bad odor from dissipating, the air from the blower 16 is transferred to the preheating pipe 21.
The deodorizer 14 is then sent to the deodorizer 14, and the catalyst 58 is kept constantly warm and on standby.

Furthermore, the control valve 27 is temporarily opened when the push button 71 (or the evaporation switch 65) is operated during urination, so that the urine discharged into the toilet bowl 2 flows into the drying pot 28 via the introduction pipe 3. It turns out.

Since the control valve 18 is closed, the air from the blower 16 does not flow into the drying pot 28, and the bad odor inside the drying pot 28 is not blown back to the outside from the introduction pipe 3.

Note that the cock 32 connected to the evaporating pot 28 is closed manually. This cock 32 is opened in the event that the urine dryer 1 breaks down, etc. to remove the urine remaining in the drying pot 28. It is used to release the air and is not used at all during normal operation.

<Using the urine dryer> A person who intends to urinate using the urine dryer 1 in the standby state approaches the front of the urine dryer 1 and urinates toward the toilet bowl 2. . The urine collected in the toilet bowl 2 is led into the drying pot 28 through the introduction pipe 3 and stored in the drying pot 28 one after another.

<Drying Operation> Next, when a certain amount or more of urine is stored in the drying pot 28, the stored urine must be disposed of. For this reason, the instructions for drying the stored urine are started by pressing the drying switch 65 (or push button 71) (in this embodiment, drying is started by manually pressing the drying switch 65 (or push button 71). Although the operation is started in this manner, the method is not limited to this, for example, a method of transmitting a drying operation signal to the input circuit 66 at fixed time intervals using a timer may also be used.Furthermore, an infrared sensor may be provided on the front of the urine dryer 1. (It may also be a method of counting the number of times a person uses the urine dryer 1, and transmitting a drying operation instruction signal to the input circuit 66 when the urine dryer 1 is used more than a certain number of times.)
.

When this drying switch 65 is pressed, the signal is transmitted to the control circuit 67 through the input circuit. Then, although the reheating heater 57 and the motor 47 continue to operate as they are, a signal for drying operation is transmitted from the control circuit 67 to the valve operating circuit 69 and the drying circuit 70.

First, in the valve actuation circuit 69, the control valve 18 is opened, and at the same time, the control valve 19.27 is closed. Then, the air that has been flowing through the preheating pipe 21 is switched to flow in the direction of the cleaning vibrator 20, and the air from the blower 16 is directed to the nozzle 4.
9 into the drying pot 28. The purpose of introducing air into the drying pot 28 is to push out the water vapor accumulated inside the drying pot 28 and to promote oxidation during evaporation. Furthermore, the reason why the control valve 27 is closed is to prevent the bad odor being evaporated from flowing out through the toilet bowl 2 via the introduction vibe 3.

At the same time, the drying circuit 70 operates the motor 42 and energizes the heater 29.51.

When current flows through the heater 29, the heater 29 generates heat and heats the drying pot 28 from the outside, thereby raising the temperature of the stored urine to a point where it evaporates.

When the motor 42 is operated, the rotation of its output shaft 43 is transmitted to the rotating shaft 39 via the coupling 44.
The rotating shaft 39 and stirring blade 40 are rotated. As this stirring blade 40 rotates, the heat storage body 41 housed in the bottom of the drying pot 28 also rotates at the same time, and by stirring the stored urine, the stirring action is performed so that the overall temperature rises uniformly. I will do it. At this time, the heat storage body 41
Since the heat from the heater 29 is stored in the heat storage body 41, urine is transferred to this heat storage body 41 by rotating the stirring layer 140.
The heat of the heat storage body 41 is smoothly transferred to the urine, and the temperature of the urine increases more quickly.

The urine in the evaporating pot 2B heated by the heater 29 starts to evaporate when the temperature reaches the -chamber or higher. As described above, since air is supplied from the outer circumference by the cleaning vibrator 20 and the air is sequentially conveyed from the nozzle 49 into the drying pot 28, the evaporated water vapor is conveyed from the exhaust vibrator 15 toward the dust collector 13. This dust collection I! The air containing water vapor that has entered the dust collector 13 flows into the deodorizer 14 through the separation vibrator 54 (at this time, the amount of air from the nozzle 49 is gentle, no cyclone vortex is generated in the dust collector 13, and the dust removal action is (not done yet).

As mentioned above, since the reheater 57 is heated, the steam containing the malodor is heated again and then flows toward the catalyst 58. In this catalyst 58, the water vapor that has been heated again to a high temperature is oxidized as it comes into contact with a catalyst such as platinum, and malodorous components such as ammonia and bromine are oxidized and released from the duct 61 to the outside in an odorless state. Ru.

By repeating this operation, the urine in the evaporating pot 28 is sequentially evaporated and released to the outside in an odorless state.

It should be noted that urine may be excreted toward the toilet bowl 2 when the control valve 27 is closed as described above, but in this case, the urine is temporarily stored in the tank chamber 25. Then, when the tank chamber 25 becomes full, the water amount sensor 26 is activated and informs the input circuit 66 that there is no more storage capacity. This signal is transmitted to the input circuit 66 and the control circuit 6.
7, the lamp 71 is turned on and the lamp 71 on the front of the urine dryer 1 notifies the user that the urine dryer 1 cannot be used at present.

Cleaning Operation> When the above-described drying operation continues for a predetermined period of time, all the urine stored in the drying pot 28 is evaporated. Then, drying pot 28
Residues such as waste products and ash that have not been evaporated as water will remain in the form of powder. Since the heat storage body 41 is rotated by the stirring layer 140 as described above,
The unevaporated components will be ground into powder. and,
When the moisture in the evaporating pot 28 disappears, the temperature of the drying pot 28 rises rapidly.
It detects that the temperature has risen, determines that there is no moisture, and informs the control circuit 67.
Upon detection of step 3, the cleaning operation is started.

First, the standby circuit 68 stops the signal to the motor 47,
At the same time, the drying circuit 70 transmits a signal to the inverter circuit 72, which transmits a high frequency output to the motor 47. Then, the rotation speed of the motor 47 is increased compared to that in the drying operation described above, and the fan 48 is rotated at a high speed to increase the air volume and forcefully send air to the blower vibrator 17 and the cleaning pipe 20. Then, a large amount of air is ejected from the nozzle 49, and the air ejected from the nozzle 49 blows up the dust in the drying pot 28, causing the dust and the air to be ejected from the exhaust pipe 15. The air containing dust sent from this exhaust pipe 15 is sent to the dust collector 13 at high speed.
Inside this dust collector 13, the air rotates in a spiral shape (a cyclone), and fine dust falls into the dust box 5.
Accumulated within 0. The air from which dust has been removed is passed from the separation pipe 54 to the deodorizer 14 and then to the duct 6.
1 is released to the outside.

Since this separated dust collected in the dust box 50 still contains some moisture, it is heated again by the heater 51, and the moisture evaporates as water vapor, and is deodorized by the separation pipe 54 as described above. It is transmitted to the vessel 14, oxidized by the catalyst 58, and discharged from the duct 61. Since a large amount of air is released from this cleaning pipe 20, the drying pot 2
All the dust in the chamber 8 is moved outside along with the air, and the cleaning operation is completed.

<Preparation for standby> When the series of operations of evaporation and cleaning are completed in this way, a timer (not shown) is activated to shift the urine dryer 1 to a standby state for the size to be used next. When the control circuit 67 determines that the cleaning operation has been completed, the standby circuit 68 operates the motor 47 at a low rotation speed to reduce the air volume and send air to the blower pipe 17. At the same time, the valve actuation circuit 69 closes the control valve 18 and opens the control valve 19.27. Further, the drying circuit 70 stops its operation, the inverter circuit 72 is stopped, the motor 42 is stopped, and the heater 29 is stopped.
．． The supply of current to 51 is stopped. This operation causes the same state as the standby operation described above, and the urine dryer 1
will be on standby for those who use it.

〔Effect of the invention〕

Since the present invention is configured as described above, in a processing device for drying urine, it is possible to automatically clean dust such as waste materials and ash that remain after evaporation as water. Therefore, there is no need to periodically disassemble and clean the urine dryer, and the urine dryer can be used for a long period of time. In addition, since the inside of the drying pot is cleaned every time the urine dryer performs the operation of evaporating urine, the inside of the drying pot is always kept clean and failures are less likely to occur.

[Brief explanation of drawings]

Fig. 1 is an external perspective view showing an example in which an embodiment of the present invention is applied to a movable urine dryer, Fig. 2 is a skeleton diagram showing an outline of the internal structure of the same urine dryer, and Fig. 3 is the same as the above. Fig. 4 is an exploded perspective view showing the internal structure of the dryer, Fig. 5 is a wiring diagram showing the electrical system of the same, and Fig. 6 is a flow chart showing the flow of operation. be. DESCRIPTION OF SYMBOLS 1... Urinary dryer, 13... Dust collector, 15... Exhaust pipe, 20... Cleaning pipe, 28... Evaporating pot as a container, 29... Heater as a heating means, 4
0... Stirring blade, 41... Heat storage body. Figure 1 Patent applicant Hikoma Seisakusho Co., Ltd.

Claims (1)

[Claims] It consists of a heat-resistant container for storing urine, a heating means for heating the container, a stirring means for stirring the urine stored in the container, and a plurality of spherical heat storage bodies stored in the container. In a urine dryer, a part of this container is connected to an air supply pipe for blowing out air from the outside, and a part of this container is connected to one end of a discharge pipe for releasing air from inside the container. A cleaning mechanism for a urine dryer characterized in that a dust collector is attached to the other end of the discharge pipe to separate air and dust.