JPS621799B2 - - Google Patents

Description

[Detailed Description of the Invention] <Technical Classification/Field> The disclosed technology belongs to the technical field of fermentation and reuse of human waste from toilets in houses.

<Explanation of the gist> The present invention is a device for driving a screw such as a ribbon screw having a rectangular cross section and a stirring tank connected to the lower part of a waterless toilet installed in a toilet in a house via a connecting tube or the like. The waste from the waterless flush toilet is mixed with a fermentation accelerator, agitated, and transferred, and the tip is dropped into a fermentation tank installed in the ground via a connecting tube for dry fermentation. The present invention relates to a human waste fermentation device which is configured to slide in contact with the ribbon screw at the base of the connection tube of the stirring tank connected to the waterless toilet bowl,
This invention also relates to a human waste fermentation device that is equipped with rolling spheres to prevent visibility, automatic cleaning, and prevention of foreign matter from falling.

<Prior Art> As is well known, in recent years, environmental destruction due to pollution problems cannot be ignored, and the fact that effective utilization such as resource reuse is not being carried out sufficiently has been brought into focus.

Among these, in residential areas, whether urban or rural areas, environmental destruction and waste of resources are particularly noticeable when it comes to the disposal of human waste.

In other words, the widespread use of flush toilets and septic tank toilets ignores the effective use of resources and environmental pollution issues, seemingly in the name of sanitary environmental measures.
The reality is that they are ultimately disposed of in rivers or the sea based on large-scale intensive processing dilution methods using chemicals or chemical treatment, contaminating river water and seawater, leading to the death of bacteria and effective bacteria, and causing river pollution. It is disrupting the ecosystem and promoting environmental destruction as a result.

On the other hand, the use of large amounts of water, including septic tank systems, causes a significant increase in the amount of sewage, so water and sewage equipment, etc.
There are problems that require huge investments and lead to pointless waste of social capital.

On the other hand, the use of pesticides through chemical fertilizers has obstructed the normal growth of agricultural crops, shifted from natural cultivation to artificial growth, and raised the possibility that chemical damage through agricultural products could eventually affect the human body.

Here, recently, large quantities of human waste from households, etc., are fermented and used as effective fertilizer, returned to farms, and decomposed by effective bacteria in the soil, recycled, and used in natural science. Through the combination of science and social science, an effective human waste disposal method that is compatible with the ecosystem, is hygienic, does not use any social capital, and is harmless to hygiene has begun to be devised.

For example, an invention as disclosed in Japanese Patent Publication No. 57-33966 has been devised, in which human waste is fermented in a fermentation tank connected to a stirring tank, and the waste is returned to agricultural products.

<Problems with conventional technology> However, as mentioned above, human waste fermentation technology using waterless toilets and fermentation tanks basically does not change the ecosystem, nor does it destroy the environment or consume much social capital. Although it is a new technology, since it is a relatively new technology, there are various problems that need to be solved.

For example, the fermentation tank has a curing tank, and the fermentation tank is essentially a human waste storage tank, which has the disadvantage of an extremely complicated structure and high cost.

Furthermore, although it has a basic structure in which fermentation accelerators, etc. are introduced and sent to the fermentation tank via a screw, it is still a basic structure, so there are various structural issues. There are deficiencies that need to be improved.

To deal with this, the applicant's numerous prior inventions,
Through invention, many technical problems have been solved, and products that can withstand practical use have come to light.

On the other hand, since the seed urine fermentation equipment has a kind of sanitary function, priority has been given to the development of practical aspects, and the psychological aspect of visual appearance and convenience of use have been left behind. For example, the disadvantages that have been neglected, such as the inconvenience of the screw screw blocking the downward view during use and the failure of the screw screw to rotate due to slippers falling, have come to light, and the needs of users to improve these problems have suddenly grown. It's here.

<Purpose of the Invention> The purpose of the present invention is to solve problems in the use of human waste fermentation equipment based on the above-mentioned conventional technology, which have become practically effective, and It is an excellent product that benefits the field of fermentation in the resource reuse and recycling industry by taking advantage of the advantages of a human waste fermentation device connected to a waterless toilet, improving its comfortable usability, and providing a protective function so that its functions can be fully demonstrated. The present invention aims to provide a human waste fermentation device.

<Structure of the Invention> In order to solve the above-mentioned problems, the structure of the present invention, which is based on the above-mentioned object and has the gist of the above-mentioned claims, is that a fermentation accelerator is placed in advance in a stirring tank connected to a waterless toilet. The human waste that descends from the waterless toilet is put into the stirring tank, mixed and stirred by a ribbon screw with a square cross section, etc., and retained, and the human waste is collected in the stirring tank by the forward and reverse rotation of the drive device. The fermented compost that has undergone primary fermentation is fed and dropped from the tip of the stirring tank to the lower fermentation tank via a connecting pipe, and the fermentation of the fermented compost is further promoted by the fermentation accelerator, and the fermentation gas is The outside air is deodorized and released into the atmosphere in an odorless state through an upwardly connected exhaust pipe, and during this time, the outside air sucked in from the slits of the waterless toilet through the exhaust suction by the exhaust pipe is as described above. The lower end of the exhaust pipe is connected to a filter provided at the bottom of the fermentation tank and communicates with a liquid reservoir formed at the bottom of the filter, so that suction force is applied to the liquid reservoir, and therefore, The outside air that enters the fermentation tank passes through the internal fermentation compost, passes through a fine mesh filter, and is dissipated into the atmosphere from the liquid reservoir through the exhaust pipe, and the moisture in the fermentation compost is dehumidified and fermented. The moisture content of the compost is dried to maintain an optimum state such as 60%, so that fermentation is promoted quickly. A sphere is installed in a connecting cylinder interposed between the stirring tank and the sphere, which is placed in contact with the rectangular cross-section ribbon screw and slides and rolls, and is flushed from the waterless flush toilet to the bottom of the stirring tank. In addition, the descending human waste is smoothly moved to the ribbon screw by its rotation and rolling, paper, cotton, etc. are also moved to the lower side without looking down, and the screw with a rectangular cross section and the casing are The lower view surface is cleaned by cleaning the inner wall, etc., and the technical feature is that it prevents foreign objects such as fallen slippers from falling into the stirring tank, prevents them from getting caught, and maintains smooth operation. The measures were taken.

<Embodiments - Configuration> Next, embodiments of the present invention will be described below based on the drawings.

It should be noted that the same parts will be explained using the same reference numerals throughout all the embodiments.

In the embodiment shown in FIGS. 1 to 3, 1 is a human waste fermentation apparatus of the present invention, and a waterless toilet 4 is installed at a predetermined position of a toilet 3 of a house 2, and a waterless toilet 4 is installed under the floor 5 of the toilet 3. A stirring tank 9 is installed on the ground 6 through a foundation concrete 7 and connected to the waterless toilet 4 at its base via a connecting tube 8, and a driving chamber is installed at the tip of the stirring tank 9. 10 is provided, the stirring tank 9 is tilted at a set angle upward slope, and a fermentation tank 12 is shallowly buried in the ground at a predetermined depth through a connecting tube 11 at a set distance in front of the drive chamber. In the upper part of the fermentation tank 12, there is provided an outlet 14 for taking out the fermented compost 13 stored inside, and an exhaust pipe 15 is provided extending upward.

The structure of the human waste fermentation apparatus will be explained in detail with reference to FIGS. 2 and 3. The stirring tank 9 has a ribbon screw 17 having a three-dimensional rectangular cross section on a rotating shaft 16 pivotally supported at its rear end and front end. is provided close to the casing 18 of the stirring tank 9, and furthermore, the tip of the rotating shaft 16 is connected to the reversible motor 20 via a reducer 19 provided inside the drive chamber 10, A timer (not shown) installed in a control box 21 installed in the toilet 3 causes the toilet to rotate forward and reverse intermittently at predetermined intervals.

The pitch of the ribbon screw 17, which has a rectangular cross section, is shorter than the inner diameter of the connecting tube 8 connected to the waterless toilet bowl 4, and as is well known, the reversible motor 20 also serves as a kind of heating device to generate heat. ing.

Further, an intake hole 23 is provided in the casing 22 of the drive chamber 10, and an air supply hole 24 is provided in the partition plate at the boundary with the stirring tank 9, so that heated air from the reversible motor 20 is passed through the connecting tube 11. He is trying to feed it to the fermentation tank 12.

A metal net 25 made of, for example, stainless steel and having a predetermined fine mesh is stretched on the inclined bottom surface of the fermentation tank 12, and a liquid retaining portion 2 is provided at the bottom of the metal net 25.
6 is formed by the set capacitance.

Therefore, the fermented compost 13 is stored in the fermentation tank 12 on the rod body 25 and the inclined bottom surface of the liquid retaining portion 26.

On the other hand, the exhaust pipe 15 has a directly above extending part 15' in the fermentation tank 12, and its lower end is integrally connected to the metal mesh body 25 and communicates with the liquid retaining part 26 at its lower part. On the other hand, an opening 28 for forced liquid drainage and maintenance is provided at the upper end of the cap 27, which is removably sealed.

An exhaust fan 29 equipped with a motor (not shown) is provided at the upper end of the exhaust pipe 15 branching from the upper part of the straight-extending portion 15'.

In this invention, as shown in FIG. 3, at the base of the stirring tank 9, a sphere 30 made of synthetic resin is suitably placed at the bottom of the connecting tube 8 with the waterless flush toilet 4 inside the connecting tube 8. The ribbon screw 17 is provided with a slight gap from the wall surface and is formed to have a larger diameter than the pitch of the ribbon screw 17 with a square cross section. There is.

Therefore, the sphere 30 will not fall between the pitches of the ribbon screw 17 having a rectangular cross section.

<Example - Effect> In the above-described configuration, when the toilet 3 is put into use after the human waste fermentation device 1 is installed, first, a well-known moisture regulator and primary fermentation accelerator such as Ushiro bacteria (not shown) is added to the waterless toilet bowl 4. A predetermined amount of is added and stored in the stirring tank 9 in advance, and use is started.

The human waste falling from the waterless toilet bowl 4 falls onto the upper spherical surface of the spherical body 30 of the connecting tube 8, but since the spherical body 30 comes into sliding contact with the rectangular cross-section ribbon screw 17 and rolls and rotates, it is reversed. The liquid is lowered into the stirring tank 9 and gradually accumulates from the base side of the inclined stirring tank 9 toward the upper part of the slope.

Therefore, when the reversible motor 18 is operated by the switch in the control box 19 and the timer to perform forward and reverse rotation at predetermined intervals, such as every 2 hours for 30 minutes, the rotation When the shaft 16 rotates, the ribbon screw 17 with a rectangular cross section, which is integrated with the shaft 16, rotates.When rotating in the opposite direction, the raw waste 13 is injected into the stirring tank 9, and is sufficiently used as a moisture regulator and a primary fermentation accelerator. The mixture is mixed and stirred to promote fermentation, deodorize, and kill roundworm eggs and bacteria.
The water is absorbed or evaporated, and the pressure of the evaporated water and fermentation gas is increased and guided into the fermentation tank 12 via the connecting tube 11.

Also, paper, cotton, etc. thrown in with the human waste are once thrown onto the upper spherical surface of the sphere 30, just like the human waste.
Like the human waste, it is turned over and falls into the stirring tank 9.

In this case, the stirring tank 9 is not looked down from the waterless flush toilet bowl 4, and the rolling sphere 30 performs a wiping action to clean the inner surface of the connecting tube 8 and the spherical surface of the sphere 30 before use. There is no sense of impurity.

Therefore, the fermentation of the fermented compost 13 is promoted even in the stirring tank 9.

When the ribbon screw 17 with a rectangular cross section rotates normally, the fermentation compost 13 in the stirring tank 9 is forwarded obliquely upward by the action of the ribbon screw 17, and is transferred into the fermentation tank 12 through the connecting cylinder 11. The particles are dropped onto the metal net 25 of the fine mesh and stored therein.

At this time, the ribbon screw 17, which has a rectangular cross section, does not perform forceful pressure feeding or stirring due to its shape. Therefore, overload is not applied to the stirring tank 9 or the reversible motor 18, and durability is not impaired. Nothing happens.

Then, the human waste, fermentation accelerator, paper cotton, etc. are cut at the corner edges of the rectangular cross-section ribbon screw, and uniformly dispersed, mixed and stirred.

Also, in the fermentation tank 12, the exhaust fan 29 at the tip of the exhaust pipe 15 is constantly operating to exhaust and take in air, so negative suction pressure builds up in the liquid retainer 26 at the bottom of the fermentation tank 12. Therefore, the suction unpressure acts on the fermentation compost 13, and the fermentation gas in the upper part or the reversible motor that enters from the connection tube 11 through the outside air intake port 23 and the exhaust port 24 in the drive chamber 10. The outside air heated to 20 or the outside air that enters from the waterless toilet bowl 4 through the slit is sucked in and is dissipated into the outside air through the exhaust pipe 15.

Therefore, the outside air and fermentation gas inside the fermentation tank 12 are always forcibly sucked in and exhausted, and as long as this is the case, the stored fermentation compost 13 is subjected to forced drying, and its water content is about 60%. kept in
Fermentation proceeds smoothly by maintaining the conditions that promote fermentation the most.

In addition, in this case, due to forced exhaust, the waterless toilet 4
Since the outside air is sucked through the toilet 3, the air inside the toilet 3 is also sucked little by little, and the air inside the toilet 3 is kept clean.

Furthermore, as mentioned above, the temperature of the outside air flowing through the drive chamber 10 is raised by the heat generated by the reversible motor 18, and the air is sent into the fermentation tank 12 from the connecting tube 11, so that the fermentation gas in the fermentation tank 12 rises. From this point of view, the inside of the fermenter 12 is brought to an optimum temperature, and fermentation is promoted.

The fermented compost 13 that has been aged and fermented is taken out from the outlet 14 at a predetermined timing and carried out as appropriate.

Incidentally, slippers are generally used in the toilet 3, but even if a child or the like accidentally drops the slippers into the waterless toilet bowl 4, the gap between the sphere 30 and the connecting tube 8 is small, so the stirring tank It did not fall on 9, and therefore, the slipper fell on ribbon screw 1.
7, the reversible motor 20
will not be overloaded and its life will not be shortened.

This can also be easily picked up from above.

In addition, if a large amount of liquid accumulates in the liquid retention part 26 or if solid matter has formed, the cap 27 is removed, and a hose or an appropriate rod is inserted and removed from the opening 28.

In the embodiment shown in FIG. 4, the ribbon screws 17, 17 having a rectangular cross section are replaced by two-thread screws, and two spheres 30', 30' are installed, which is substantially different from the embodiment described above. Although there is no difference in operation and effect, the mixing and stirring effect is further promoted and the spheres do not fall.

The embodiment shown in FIG. 5 is a combination of the embodiments shown in FIGS. 3 and 4, and is an embodiment that takes advantage of the advantages of both.

Furthermore, the embodiment shown in FIG. 6 is different from the double ribbon screws 17, 1 in the embodiment shown in FIG.
7 is provided only in the effective mixing and stirring area of the stirring tank 9,
In this embodiment, only one ribbon screw 17 is used up to the tip, and the mixing and stirring effect is promoted while preventing the sphere 30 from falling.

<Other Examples> It goes without saying that the embodiments of the present invention are not limited to the above-mentioned embodiments; for example, the sphere may be made of rubber or metal, and various other embodiments may be adopted. .

<Effects of the Invention> According to the present invention, basically, by connecting a human waste fermentation device to a waterless toilet, fermentation of human waste can be carried out with a simple device, and it can be reduced to nature, resulting in a non-polluting process. It has excellent effects such as being able to be used for agriculture.

In addition, since it does not use a large amount of water like conventional flush toilets or septic tank toilets, the amount of water used is small, and therefore local governments require a lot of social capital such as water supply development facilities. It has the advantage that it is not required.

Furthermore, since the fermented compost is sterilized in the fermentation tank, it does not cause any pollution even if it is reduced and used for agricultural purposes.

Furthermore, since there is no need to add chemicals on a large scale, process, or discharge into rivers, excellent effects can be achieved without any risk of damaging the ecosystem due to contamination of rivers, seawater, etc.

Furthermore, according to this invention, since a natural reduction type recycling system is adopted, energy saving and
Not only does it have the advantage of saving resources, but it also has the excellent effect of actively reusing resources.

In addition, since most of the equipment itself has straight parts and has a short stroke, there is less chance of human waste or fermented compost adhering to the equipment frame, etc., and the structure is simple and easy to manufacture. It also has the secondary merits of being able to be manufactured at low cost and requiring almost no maintenance, inspection, maintenance, etc.

In the device, a stirring tank is provided at the bottom of the waterless toilet bowl, so that the human waste that is dumped is subjected to a primary fermentation process using a primary fermentation accelerator, etc. in the stirring tank before being lowered into the fermentation tank. As a result, sterilization and deodorization are automatically performed from the first stage, and moisture absorption is also controlled, which is an excellent effect.

Further, by providing a fermentation tank below the fermentation tank, drying is also promoted, and there is an effect that good fermentation is carried out.

By installing a sphere at the bottom of the connecting tube from the waterless flush toilet to the base of the stirring tank, and sliding it in contact with a ribbon screw with a square cross section installed in the stirring tank, waterless flushing is possible during use. The agitation tank cannot be looked down upon from the toilet bowl, and therefore there is no psychological sense of uncleanness, which is advantageous in terms of use.

In addition, since the sphere is installed in the connecting tube with a small gap that is invisible to the eye, even if a child drops a slipper, it will not get caught between the connecting tube and the sphere and fall into the stirring tank. This has the advantage that the ribbon does not get caught in the screw and cause overload or failure.

Furthermore, even if paper or cotton is lowered during use, the sphere that rotates with the ribbon screw turns it over along with the human waste and immediately lowers it into the stirring tank, so that it does not stick to the inner wall of the lower part of the connecting cylinder and is pulverized and mixed. Stirring has the effect of uniformly dispersing it.

Furthermore, since the sphere rotates, it exerts a wiping action on the inner wall of the connecting cylinder, thereby achieving the effect that a clean state can always be maintained.

Further, since the sphere only needs to be inserted into the connecting tube to the device, there is an advantage that replacement is easy.

In addition, since the sphere rolls using a ribbon screw, there is no need for any particular power or transmission mechanism, so the structure is simple and maintenance is simple and durable. It has a positive effect.

[Brief explanation of the drawing]

The drawings are explanatory diagrams of embodiments of this invention, and the first
The figure is a side view schematically explaining the whole of the first embodiment, Figure 2 is a partially cut-out enlarged sectional view of the device, Figure 3 is a partially enlarged sectional view of Figure 2, and Figures 4, 5, and 6 are equivalent to Figure 3. FIG. 3 is a partially enlarged cross-sectional view of the embodiment. . 3... Toilet, 4... Waterless toilet bowl, 9... Stirring tank, 20... Drive device (motor), 17... Ribbon screw, 12... Fermentation tank, 5, 15'...
Exhaust pipe, 1... human waste fermentation device, 30, 30'...
sphere.

Claims (1)

[Scope of Claims] 1. A stirring tank connected to a waterless toilet in a toilet is equipped with a screw connected to a drive device, and is connected to a fermentation tank at the bottom of the stirring tank, and an exhaust pipe is connected to the fermentation tank. A human waste fermentation apparatus characterized in that a sphere that contacts and rolls against the screw is placed at the connection part of the waterless toilet of the stirring tank. 2. The human waste fermentation apparatus according to claim 1, wherein the sphere is formed of a rigid body. 3. The human waste fermentation apparatus according to claim 1, wherein the sphere is formed of a soft body. 4. The human waste fermentation apparatus according to any one of claims 1, 2, and 3, wherein the sphere is installed so that the stirring tank cannot be seen from the waterless toilet bowl. 5. The human waste fermentation apparatus according to any one of claims 1 to 3, characterized in that a plurality of the spheres are provided. 6. The human waste fermentation apparatus according to any one of claims 1 to 5, wherein the screw is provided in a double-row type.