JPH091111A - Garbage treating machine - Google Patents

Abstract

PURPOSE: To provide a garbage treating machine capable of treating garbage stably over a long period of time and prolonging the life of carriers and decreasing troubles. CONSTITUTION: This garbage treating machine has a treating vessel 1 having a garbage charging port, an agitating device for agitating the carriers 4 housed in the treating vessel 1, a heating means for heating the carriers 4 disposed in the treating vessel 1, a moisture content detecting means for detecting the moisture content of the carrier 4 and a moisture content calculating means for calculating the moisture content by the detection signal from the moisture content detecting means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for treating garbage such as kitchen garbage for business use and household purposes.

[0002]

2. Description of the Related Art Conventionally, as a method of treating kitchen waste discharged from commercial or household kitchens and food factories, kitchen waste is separated into solid content and waste water, and solid content is incinerated or landfilled. , How to purify and discharge wastewater,
There is known a method of biological treatment in which garbage such as kitchen waste is fermented by microorganisms and decomposed. Among them, the method by incineration or landfill is unsanitary because it involves the trouble of carrying out the solid content to do this, and the progress of decay and the generation of rotten odor are inevitable until the delivery is completed. Also, it impairs the living environment. In this respect, the method of biological treatment is excellent because it does not deteriorate the environment because it decomposes garbage. However, biological treatment is difficult to control unless the environment for activating the microorganisms is prepared, and its control is difficult.

Therefore, a conventional garbage processing machine for performing biological treatment will be described. FIG. 10 is a vertical cross-sectional view of the processing tank of the conventional food waste processing machine, and FIG. 11 is a cross-sectional view of the processing tank of the conventional food waste processing machine taken along the line XX of FIG. Reference numeral 1 is a treatment tank for biologically treating kitchen garbage such as kitchen waste, which is provided with a garbage disposal inlet at the top. A heater 2 is a heating means for heating the inside of the processing tank 1. Reference numeral 3 denotes a stirring blade of a stirring device that stirs a carrier 4 to be described later, which is housed in the processing tank 1, together with raw dust, and is driven by a motor 6. The stirring blade 3 is attached around the stirring shaft 7 in a spiral arrangement, and is made of a hard metal. Reference numeral 4 denotes a carrier, which carries microorganisms for fermenting and decomposing the input garbage, and is made of sawdust, wood chips, or the like. Reference numeral 5 is an outlet for the carrier 4 provided at the bottom of the processing tank 1. Reference numeral 8 is a sprocket attached to the stirring shaft 7, and 9 is a sprocket attached to the motor 6. Reference numeral 10 is a chain that connects the sprockets 8 and 9 and transmits the driving force from the motor 6 to the stirring blade 3. The stirring blade 3, the stirring shaft 7, the sprockets 8 and 9, and the motor 6 constitute the stirring device of this embodiment. Reference numeral 11 denotes a lid (not shown) that covers the raw garbage input port of the processing tank 1. Reference numeral 12 is a temperature detector for measuring and monitoring the temperature of the carrier 4 in the processing tank 1. Further, 13 is an intake port for sending air to the garbage processing machine, and 14 is an intake / exhaust fan provided in the intake port 13. 30 is an exhaust port.

When processing raw garbage, first, the lid 11 is used.
Open and insert raw garbage into the processing tank 1 through the raw garbage inlet. The carrier 4 is filled in the processing tank 1, and after the charging, the motor 6 of the stirring device is driven to rotate the stirring blade 3 at a speed of about 3 to 30 rpm to mix the charged garbage and the carrier 4. . By this stirring, the garbage and the carrier 4 are evenly mixed, and the garbage is dispersed in the carrier 4 almost uniformly. The drive of the stirring blade 3 is not continuously performed, but is intermittently and regularly repeated at a rate of several minutes per hour.

By the way, the carrier 4 carries microorganisms such as facultative aerobic bacteria. Eubacterium, Bacillus subtilis, and cellulose as eubacteria, nitrates as Pseudomonas,
Sulfur bacteria etc. are carried. Then, the garbage is fermented and decomposed by the microorganisms to generate heat. Due to this heat generation, the temperature of the carrier 4 rises, and the habitat of microorganisms is generally maintained. However, in winter or cold regions where the temperature of the outside air is low, the temperature of the carrier 4 is lowered by the heat radiation to the outside and the activity of the microorganism is significantly reduced. Therefore, the heater 2 is energized to heat the carrier 4 to promote fermentation. It is necessary to let This is because when the temperature of the carrier 4 drops, the microorganisms fall into an inactive state. Therefore, the conventional food waste processing machine monitors and controls the microbial environment by detecting the temperature of the carrier 4 by the temperature detector 12. Further, in order to maintain an aerobic environment for activating the microorganisms in the processing tank 1, the intake / exhaust fan 14 is driven to send air to the carrier 4 to exhaust the exhaust port 30.
It also discharges from. The temperature control of the carrier 4 and the air supply to the carrier 4 are not limited to the problems of temperature and oxygen, and finally, the water content of the carrier 4 is in the range of 40% to 60% which is the optimum water environment of microorganisms. Is aimed at maintaining. This water content is the loss on drying when the carrier of the microorganisms containing water is heated to about 100 ° C. to evaporate the water and dry. There are four conditions for the growth and activation of microorganisms: sufficient water content, sufficient oxygen, proper temperature, and sufficient nutrition. The water content is 40% to 60%. Maintaining a% is a direct barometer of good microbial habitat.

[0006]

However, in the conventional garbage treatment machine, the temperature of the carrier 4 in the treatment tank 1 is monitored to adjust and control the fermentation decomposition. Since the dust is miscellaneous and is not uniform and constantly fluctuates, the water content of the carrier 4 in the treatment tank 1 also fluctuates and becomes unstable. As a result, a microbial environment often falls into a bad environment that deviates from the condition of an appropriate water content of 40% to 60%, and the biological treatment of garbage is reduced. When the fermentation process by microorganisms is reduced or stopped, the carrier 4 swells with a large amount of water, and the amount of raw garbage to be input is larger than the amount of raw garbage to be decomposed, and the treatment tank is treated. Sometimes it overflows from 1. In this state, the microorganisms carried on the carrier 4 are often in an inactive state, and the function of the carrier 4 is deteriorated, so that the carrier 4 must be replaced immediately. If the moisture content is not detected in this way,
Carrier 4 is frequently used because it causes microorganisms to enter an inactive state.
Had to be replaced, and there was the problem that the garbage would overflow from the garbage processor.

Further, when the carrier 4 in the processing tank 1 becomes inactive and contains a large amount of water, the carriers 4 solidify by solidifying each other. When this solidification progresses further, the carrier 4 becomes clay-like, stops the movement of the stirring blades 3, and causes the motor 6 to lock. If the water content of the carrier 4 is left as described above, there is a problem that the function of the garbage processing machine is impaired.

Therefore, according to the present invention, it is possible to perform a stable garbage treatment for a long period of time and to extend the life of the carrier.
It is an object of the present invention to provide a garbage processing machine with few failures.

[0009]

Means for Solving the Problems In order to solve the above-mentioned problems, a garbage disposal according to the present invention comprises a treatment tank having a garbage introduction port, and an agitator for agitating a carrier contained in the treatment tank. A heating means provided in the treatment tank for heating the carrier, a water content detecting means for determining the water content of the carrier, and a water content calculating means for calculating the water content by a detection signal from the water content detecting means. It is characterized by that.

While comparing the water content with the set water content,
If there is a deviation, it is suitable to include a control means for controlling the heating means to make an adjustment to reduce the deviation.

While comparing the water content with the set water content,
If there is a deviation, it is suitable to include a control means for controlling the agitator to make an adjustment to reduce the deviation.

The water content detecting means is composed of a first temperature detector provided on the inner surface of the treatment tank and a second temperature detector provided at a position within a predetermined distance from the position of the first temperature detector. Preferably.

The control means controls the heating means to a constant temperature,
The water content detecting means is preferably a temperature detector provided at a position inside a predetermined distance from the mounting position of the heating means.

The water content detecting means heats the outside air to generate warm air and causes the warm air to flow along the surface of the carrier, and the temperature of the warm air provided near the outlet of the warm air generator. Temperature detector for detecting the temperature, a fourth temperature detector for removing the moisture from the carrier and detecting the temperature of the warm air discharged from the exhaust port provided in the processing tank, the third temperature detector, and the fourth temperature detector. It is desirable to provide a time measuring means for measuring the time until the temperature difference detected by the temperature detector becomes smaller than a predetermined value.

The moisture content detecting means heats the outside air to generate warm air and causes the warm air to flow along the surface of the carrier, and the humidity of the warm air provided near the outlet of the warm air generator. Humidity detector that detects moisture, a second humidity detector that deprives the carrier of moisture and detects the humidity of the hot air discharged from the exhaust port provided in the processing tank, the first humidity detector, and the second humidity detector. It is desirable to provide a time measuring means for measuring the time until the humidity difference detected by the humidity detector becomes smaller than a predetermined value.

[0016]

The garbage disposal of the present invention comprises a stirring device for stirring the carrier, heating means for heating the carrier, water content detecting means for determining the water content of the carrier, and detection from the water content detecting means. Since the water content calculating means for calculating the water content based on the signal is provided, the water content of the carrier can be measured.

While comparing the water content with the set water content,
Since there is provided a control means for controlling the heating means to reduce the deviation if there is a deviation, the water content can be set to an appropriate value, and the microbial treatment can be efficiently performed.

While comparing the water content with the set water content,
If there is a deviation, the control means for controlling the stirring device to reduce the deviation is provided, so that the water content can be set to an appropriate value, and the microbial treatment can be efficiently performed.

The water content detecting means is composed of a first temperature detector provided on the inner surface of the treatment tank and a second temperature detector provided at a position within a predetermined distance from the position of the first temperature detector. Therefore, the water content of the carrier can be calculated from the two temperature data.

The control means controls the heating means to a constant temperature,
Since the water content detecting means is a temperature detector provided at a position inside a predetermined distance from the mounting position of the heating means, it is possible to detect the water content with one temperature detector.

The moisture content detecting means heats the outside air to generate warm air and causes the warm air to flow along the surface of the carrier, and the temperature of the warm air provided near the outlet of the warm air generator. Temperature detector for detecting the temperature, a fourth temperature detector for removing the moisture from the carrier and detecting the temperature of the warm air discharged from the exhaust port provided in the processing tank, the third temperature detector, and the fourth temperature detector. Since it is equipped with a time measuring means capable of measuring the time until the temperature difference detected by the temperature detector becomes smaller than a predetermined value, it detects the time until the hot air removes water from the carrier to dry the carrier. It is possible to calculate the water content.

The water content detecting means heats the outside air to generate warm air and causes the warm air to flow along the surface of the carrier, and the humidity of the warm air provided near the outlet of the warm air generator. Humidity detector that detects moisture, a second humidity detector that deprives the carrier of moisture and detects the humidity of the hot air discharged from the exhaust port provided in the processing tank, the first humidity detector, and the second humidity detector. Since it is equipped with a time measuring means that can measure the time until the humidity difference detected by the humidity detector becomes smaller than a predetermined value, it detects the time until the carrier is dried by the hot air and the carrier is dried. It is possible to calculate the water content.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a garbage disposal according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a vertical cross-sectional view of a processing tank of a garbage disposal according to an embodiment of the present invention,
FIG. 2 is a cross-sectional view taken along the line XX in FIG. 1 of the processing tank of the garbage disposal according to the embodiment of the present invention. FIG. 3 is a control block diagram of the garbage disposal according to the embodiment of the present invention, FIG. 4 is a diagram showing the influence of the water content on the temperature change curve, and FIG. 5 is an illustration of the garbage disposal according to the embodiment of the present invention. FIG. Here, the same reference numerals as those used in the description of the conventional example are basically the same also in the present embodiment, and therefore the description will be omitted for the conventional example.

In FIG. 1, FIG. 2 and FIG. 5, 15 is a processing tank 1.
The first temperature detector such as the thermistor installed on the inner bottom surface of the
Reference numeral 16 is a second temperature detector such as a thermistor for detecting the temperature of the carrier 4 inside the processing tank 1, and 17 is a mounting rod for mounting the first temperature detector 15 and the second temperature detector 16. The first temperature detector 15 and the second temperature detector 16 are the water content detecting means 191 of this embodiment. The temperature of the carrier 4 is detected at two locations, that is, the first temperature detector 15 and the second temperature detector 16 which constitute the water content detecting means 191. The first temperature detector 15 needs to be installed on the inner bottom surface of the processing tank 1 on or near the back surface on which the heater 2 is installed. The mounting rod 17 is mounted so as to project from the position where the first temperature detector 15 is mounted in the direction toward the inside of the processing tank 1 and the stirring shaft 7. The second temperature detector 16 is attached to the tip of a mounting rod 17. First
The distance L between the temperature detector 15 and the second temperature detector 16 is 1
It is preferably about 0 mm to 60 mm. Reference numeral 18 is a main body of the garbage processing machine, and a lid 11 for covering the garbage input port of the processing tank 1 on the upper portion thereof.
Is attached. An operation panel having various switches and a display unit 21 to be described later is provided near the lid 11.

Next, the control configuration of the garbage disposal of this embodiment will be described in detail with reference to the drawings. 19 in FIG.
Is a control means composed of a microcomputer or the like, and is for performing overall control of the garbage processing machine of this embodiment as described later. Reference numeral 20 denotes a drive unit that supplies electric power to the motor 6, the heater 2, and the intake / exhaust fan 14.
Reference numeral 21 denotes a display unit for displaying various items on the garbage disposal, which is displayed by LEDs. 22 is a switch for confirming the opening / closing of the lid, which is turned on when the lid 11 is completely closed.
Then, the control means 19 can operate the garbage processing machine. 23 is a switch for opening / closing the outlet,
It is turned on when the outlet 5 for taking out the carrier 4 is closed, and the control means 19 can perform control. Reference numeral 24 is a rotation detection unit that detects the number of rotations of the motor 6 that rotates the stirring blade 3, 25 is a heater temperature detection unit that detects the heating temperature of the heater 2, and 26 is an intake / exhaust fan 14
Is a fan rotation detection unit for detecting the number of rotations of the fan. 1
Reference numeral 92 denotes a water content calculating means, which is a water content detecting means 191.
The water content is calculated from the detection signal sent from the computer as described later.

The operation of the garbage processing machine of this embodiment will be described. Open the lid 11 and put in garbage, and switch 22 for lid opening / closing confirmation and switch 2 for outlet opening / closing confirmation
If the two switches No. 3 and No. 3 are ON, the control means 19 starts driving the motor 6. Motor 6 is 3 to 30 rpm
The stirring blade 3 is rotated at a speed of about the same to mix the introduced garbage and the carrier 4. Garbage and carrier 4 when loading garbage
Is agitated for a relatively long time, but thereafter, intermittent operation is performed for about 1 minute or several minutes per hour. At the same time, the control means 19 starts energizing the heater 2 while observing the temperature detected by the heater temperature detection unit 25, and the temperature of the carrier 4 becomes 2
Control so that the temperature becomes 0 ° C or higher. The intake / exhaust fan 14 is also rotated by the control means 19 to supply oxygen to promote fermentation.

Next, the water content calculating means 192 composed of a microcomputer periodically calculates the water content,
The control means 19 receives this and performs a water content adjustment operation. The operation of calculating the moisture content once a day is usually sufficient. The water content calculating means 192 stops energizing the heater 2 before calculating the water content. Then, the motor 6 of the stirring device is driven to perform sufficient stirring. Next, when a predetermined time has elapsed and the temperature distribution and the water content of the carrier 4 in the processing tank 1 become uniform, the heating of the carrier 4 in the processing tank 1 is started again by the heater 2. At this time, stirring is not performed, and the temperatures at the respective positions are detected by the first temperature detector 15 and the second temperature detector 16 which constitute the water content detecting means 191 in this embodiment. The water content calculating means 192 takes in the detected signals of the respective detected temperature data, and calculates the water content from the relationship between the temperature and the water content previously stored in the memory.

Here, it will be described with reference to FIG. 4 that the water content can be calculated by measuring the temperature from the relationship between the temperature and the water content. In FIG. 4, the temperature change curves detected by the first temperature detector 15 and the second temperature detector 16 when the water content is high Γh are 15h and 16h. When the water content is low, Γl is 15l and 16l. When the water content Γ is high, the thermal conductivity of the carrier 4 becomes low as can be seen from the difference in the specific heats of water and air, and the temperature in the vicinity of the second temperature sensor 16 at the tip of the mounting rod 17 is The temperature becomes lower than the temperature in the vicinity of the first temperature detector 15 at the root of 17. That is, the first
This is because the heat transfer from the vicinity of the temperature detector 15 to the vicinity of the second temperature detector 16 becomes considerably dull. On the other hand, when the water content Γ is low, the thermal conductivity of the carrier 4 is high, and the heat transfer from the vicinity of the first temperature detector 15 to the vicinity of the second temperature detector 16 is faster than that of 15h and 16h. The temperature of the carrier 4 increases. As described above, the calculation of the water content Γ in this embodiment is performed by focusing on the effect of the water content Γ on the heat transfer and detecting the temperature.

As shown in FIG. 4, when the carrier 4 in the treatment tank 1 is sufficiently agitated and heating is continued by the heater 2 which is a heating means starting from a state where the temperature distribution and the water content are uniform,
Since the first temperature detector 15 is attached to the inner bottom surface of the processing tank 1 near the heater 2, the detected temperature 15 is 15h, 1
It rises like 5l. By the way, this first temperature detector 1
Since 5 is near the surface of the treatment tank 1, it is directly affected by the outside, and it shows various changes under the influence of not only the water content Γ of the carrier 4 but also the outside conditions. Therefore, the temperature curve 15 measured by the first temperature detector 15
For h and 15 l, even if the water content Γ of the carrier 4 is constant,
A variety of temperature curves are produced under the influence of the environment. However, even if the surface temperature of the processing tank 1 changes in this way, the temperature detected by the second temperature detector 16 generally shows a predetermined temperature decrease depending on the water content Γ from this surface temperature. This temperature drop is less affected by the outside world. Therefore, the second temperature detector 1
6 is for checking how much the temperature is lowered in relation to the first temperature detector 15. When the water content Γ is high Γh, a relatively large temperature decrease ΔT from 15h
If h has a low water content .GAMMA.l, then a small temperature drop .DELTA.Tl is generated from 15l to 16l.

Therefore, in this embodiment, the initial temperature,
While changing various conditions such as the outside temperature, data of temperature curves such as 15h and 15l and data such as temperature decrease ΔTh and ΔTl that occur inside are measured with the moisture content as a parameter, and stored in association with the elapsed time. To be stored in. The elapsed time is a time measuring means 193 such as a timer.
Is measured by Therefore, when the first temperature detector 15 and the second temperature detector 16 detect the temperature at each position after the lapse of a predetermined time, the water content calculating means 192 receives the signal of this detection data and lowers the temperature. Calculate ΔT. The water content Γ of the carrier 4 is the elapsed time, the temperature detected by the first temperature detector 15 immediately before the heater is turned on, and Γ corresponding to the temperature decrease ΔT.

By the way, when the control means 19 controls the heating by the heater 2 to the constant temperature T0, the measured temperature of the first temperature detector 15 placed in the vicinity of this temperature shows a substantially constant value T0. Therefore, in the case of performing such control, the difference between the temperature detected by the second temperature detector 16 and T0 is obtained without providing the first temperature detector 15 in the constitution of the water content detecting means 191. Thus, the temperature decrease ΔT can be calculated. That is, in this case, the water content detecting means 191 is one temperature detector provided at the tip of the mounting rod 17, and
Since the temperature detector 15 is unnecessary, it helps to reduce costs,
The memory capacity can also be reduced.

When the water content Γ is obtained, this water content Γ is sent to the control means 19, and the control means 19 compares the calculated water content with the set water content. The set water content is input from the input means 194 such as a numeric keypad provided on the operation panel.
It is appropriate to set a value in the range of 40% to 60%, which is an ideal water content for microbial treatment, as the set water content Γ. However, it is also possible to adopt the most appropriate numerical value within this area, for example, a value such as 50%, and control so as to maintain it. Water content Γ is the set water content of 40% to 6
When the content is within the range of 0%, the water content of the carrier 4 is in the optimum state, so in order to keep the current state so as not to over-drain the water, the temperature control of the heater 2, the stirring control of the stirring device, and the intake and exhaust. The ventilation of the fan 14 is controlled. If the calculated water content Γ has a positive deviation exceeding the range of 40% to 60%, the control means 19 causes the operation frequency of the motor 6 of the stirring blade 3, the heating frequency of the heater 2, and the suction frequency. The frequency of operation of the exhaust fan 14 is increased to control the evaporation of the water in the carrier 4 to reduce the deviation. On the contrary, when the water content Γ of the carrier 4 is low and there is a negative deviation, the heater 2 is stopped and the operation frequency of the intake / exhaust fan 14 and the motor 6 of the stirring blade 3 is reduced to evaporate the water in the carrier 4. It suppresses and controls so that this deviation may be reduced. Moisture is supplemented by the input of garbage. Further, the control means 19 displays the deviation if there is a deviation on the display unit 21 and displays it if there is no deviation.
This adjustment operation is normally continued for about one day. The water content Γ is gradually changed by the adjustment during this period, the water content detection operation is performed again when one day has passed, and the water content adjustment operation is performed again based on this result. Further, this operation is repeated.

As described above, in the present embodiment, the water content Γ is calculated based on the temperature detected by the water content detection means 191, and the water content Γ is within the fixed range of 40% to the set water content.
Since it is controlled to be 60%, the ideal water content Γ of raw garbage can be maintained. Therefore, the processing of garbage by microorganisms is promoted.

Next, a garbage disposal according to another embodiment of the present invention will be described with reference to the drawings. FIG. 6 is a vertical cross-sectional view of a processing tank of a garbage disposal according to another embodiment of the present invention, and FIG. 7 is a cross-sectional view of the processing tank of the garbage disposal according to another embodiment of the present invention taken along the line XX of FIG. It is a figure. FIG. 8 is a view showing a temperature change curve and a time elapsed until drying when the water content changes, and FIG. 9 is a partially cutaway perspective view of a food waste disposer according to another embodiment of the present invention. The same reference numerals as those used in the description of the conventional example are basically the same in this embodiment as well, and thus the description thereof will be omitted. Reference numeral 27 denotes a fan heater, which is a warm air generator, which heats the outside air sucked from the intake port 13 to generate warm air and sends it into the processing tank 1. This warm air is sent to the exhaust port 30 described later along the surface of the carrier 4. 28 is a third temperature detector attached near the fan heater 27, and 29 is a fourth temperature detector attached near the exhaust port 30. This third
The temperature detector 28 and the fourth temperature detector 29 constitute the water content detecting means 191 of this embodiment. 193 is the third
It is a time measuring means for measuring the time until the difference between the temperatures detected by the temperature detector 28 and the fourth temperature detector 29 becomes smaller than a predetermined value.

Therefore, the water content calculating means 19 of this embodiment is used.
The water content calculation operation by 2 and the water content adjustment operation by the control means 19 that has received this water content calculation will be described. This water content calculation operation is performed about once a day, and the water content adjustment operation is performed based on this result. First, before performing the water content calculation operation, the control means 19 drives the motor 6 to perform sufficient stirring. Stirring is continued until a predetermined time elapses so that the temperature distribution and the water content of the carrier 4 in the processing tank 1 become uniform. Next, the control means 19 controls the fan heater 2
7 is energized. The outside air warmed by the fan heater 27 is introduced above the carrier 4 of the processing tank 1. The third temperature detector 28, which constitutes the water content detection means 191, detects the temperature of the heated outside air sent onto the carrier 4. Water is taken from the surface of the carrier 4 before the outside air is sent over the carrier 4 containing water and is discharged from the exhaust port 30. That is, since the hot air vaporizes the water from the carrier 4, the heat of vaporization is taken from the hot air itself. This causes the temperature of the warm air to drop.

By the way, if the water content of the carrier 4 is high, it takes a long time to dry. The carrier 4 having a low water content takes a short time to dry. Therefore, the water content detecting means 19 of the present embodiment
1 is to measure the water content Γ utilizing this length of time. Therefore, the fourth temperature detector 29 detects whether or not the surface of the carrier 4 has dried. That is, when the temperature difference between the substantially constant inlet temperature detected by the third temperature detector 28 and the outlet temperature detected by the fourth temperature detector 29 becomes smaller than a predetermined value, it is considered that the vaporization is almost completed and the carrier 4
Is determined to be dry.

Thus, the correlation between the water content Γ and the time until the carrier 4 dries is checked in advance and stored in the memory. When performing the water content detection operation, first, the motor 6 of the stirring blade 3 is driven to adjust the water content to be constant, and then the fan heater 27 is driven. The third temperature detector 28 forming the water content detecting means 191 detects the inlet temperature of the hot air, and similarly, the fourth temperature detector 2 forming the same.
9 detects the outlet temperature of warm air. Moisture content calculating means 192
Takes in the detection signal of the water content detection means 191 composed of these two temperature detectors and calculates the temperature difference. When this temperature difference becomes smaller than a predetermined value, the control means 19 will perform the water content adjustment operation.

FIG. 8 shows the effect of water content on the temperature difference. 28c is a temperature curve detected by the third temperature detector 28. Since the fan heater 27 maintains a substantially constant temperature, the temperature measured by the third temperature detector 28 also becomes substantially constant.
29h is a temperature curve detected by the fourth temperature detector 29 when the water content Γ is high. 29l is a temperature curve detected by the fourth temperature detector 29 when the water content Γ is low. 29
Since the water content of the evaporated carrier 4 decreases, h and 29l increase with time. The higher the water content Γ, the lower the increase rate, and the lower the water content Γ, the higher the increase rate. ΔTh
Indicates the temperature difference between 28c and 29h, and ΔTl is 28c and 29h.
It shows the temperature difference from l. ΔT0 is a threshold value for judging that the carrier 4 has dried. Elapsed time Tsh, T until the threshold value ΔT0 and the temperature difference curves ΔTh, ΔTl intersect
The water content Γ can be calculated by measuring sl by the time measuring means 193. That is, data of the water content Γ and the elapsed time are collected in advance and stored in the memory of the water content calculating means 192, and the elapsed time until drying is measured by the time measuring means 193. To obtain the water content Γ of.

When the water content Γ of the carrier 4 is obtained as described above, the control means 19 determines whether or not the water content Γ is within the set water content range of 40% to 60% which is the optimum range of microbial treatment. To judge. If it is within this range, the moisture contained in the carrier 4 is in the optimum state, and therefore the temperature control of the heater 2, the stirring control of the stirring device, and the fan heater 27 are performed in order to maintain the current state so as not to over-drain the moisture. Take control. If the calculated water content .GAMMA. Exceeds the range of 40% to 60% and has a positive deviation, the control means 19 causes the stirring blade 3 to operate the motor 6, the heater 2, the heating frequency, and the fan. The operation frequency of the heater 27 is increased to control the evaporation of the water in the carrier 4 to reduce the deviation. Conversely carrier 4
When there is a negative deviation in the water content Γ of the heater 2, the heater 2 is stopped and the fan heater 27 and the motor 6 of the stirring blade 3 are
The frequency of operation is reduced to suppress the evaporation of water in the carrier 4, and control is performed to reduce this deviation. Further control means 1
In addition to performing such an adjustment operation, 9 indicates the moisture content and the set moisture content, and if there is a deviation between the two, displays that fact.
If it is not present, the display that normal processing is in progress is displayed. This adjusting operation is continued for a certain period, for example, about one day. Then
Since the water content Γ gradually changes due to the adjustment during this period, the water content detection operation is performed again when this period elapses, and a new water content adjustment operation is performed based on this result.
And this is repeated further.

In this embodiment, the water content Γ is calculated at the temperatures detected by the third temperature detector 28 and the fourth temperature detector 29, which are the water content detecting means 191, respectively. The state of moisture evaporating from the surface of the
The water content Γ of the carrier 4 is calculated by detecting with one temperature detector. However, the vaporization state of water should be measurable not only by measuring the temperature but also by measuring the humidity itself on the carrier 4. Therefore, as another embodiment of the present invention, a garbage processing machine in which a first humidity detector is provided in place of the third temperature detector 28 and a second humidity detector is provided in place of the fourth temperature detector 29 will be described.
In the case of this embodiment, the measured variable is only temperature to humidity, and the temperature curve shown in FIG. 8 can be read as a humidity curve, and the temperature difference curve can be read as a humidity difference curve curve. Then, if the threshold value that the carrier 4 is dry is set, the elapsed time until the threshold value of this humidity difference and the humidity difference curve intersect is measured by the time measuring means 193, and the stored water content is stored. The water content Γ can be obtained from the data of the rate Γ and the elapsed time. Whether or not this water content Γ is in the range of the set water content of 40% to 60% which is optimum for the activity of the microorganism is judged, and the same water content adjustment operation as that of the embodiment using the temperature detector may be performed. .

[0041]

As can be seen from the above description, the garbage disposal of the present invention calculates the water content of the carrier and adjusts the water content to be in a range suitable for microbial treatment. Even if it fluctuates, it is possible to perform stable and efficient decomposition treatment. Since the life of the carrier can be extended, it is not necessary to frequently replace the carrier, and the garbage does not overflow from the garbage processor.

Further, it is possible to provide a garbage processing machine with less malfunctions, without the carrier in the processing tank becoming clay-like or causing a motor lock.

The water content detecting means is composed of a first temperature detector provided on the inner surface of the treatment tank and a second temperature detector provided at a position within a predetermined distance from the position of the first temperature detector. Therefore, the water content of the carrier can be easily calculated.

The control means controls the heating means to a constant temperature,
Since the water content detecting means is a temperature detector provided at a position inside a predetermined distance from the mounting position of the heating means, the water content can be detected by one temperature detector, and the cost can be reduced. .

The moisture content detecting means heats the outside air to generate warm air and causes the warm air to flow along the surface of the carrier, and the temperature of the warm air provided near the outlet of the warm air generator. Temperature detector for detecting the temperature, a fourth temperature detector for removing the moisture from the carrier and detecting the temperature of the warm air discharged from the exhaust port provided in the processing tank, the third temperature detector, and the fourth temperature detector. Since it has a time measuring means for measuring the time until the temperature difference detected by the temperature detector becomes smaller than a predetermined value, it detects the time until the hot air removes water from the carrier to dry the carrier. Therefore, the accuracy of the calculation of the water content can be improved, and the cost can be reduced.

Further, the water content detecting means heats the outside air to generate warm air and causes the warm air to flow along the surface of the carrier, and a warm air provided near the outlet of the warm air generator. First humidity detector for detecting the humidity of the air, a second humidity detector for detecting the humidity of hot air discharged from the exhaust port provided in the treatment tank by removing water from the carrier, and a first humidity detector Since the time measuring means for measuring the time until the humidity difference detected by the second humidity detector becomes smaller than the predetermined value is provided, the time until the hot air removes water from the carrier and the carrier dries It can be detected and the water content can be calculated accurately.

[Brief description of the drawings]

FIG. 1 is a vertical cross-sectional view of a processing tank of a garbage disposal according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line XX in FIG. 1 of the processing tank of the garbage disposal according to the embodiment of the present invention.

FIG. 3 is a control configuration diagram of a garbage processing machine according to an embodiment of the present invention.

FIG. 4 is a diagram showing the influence of water content on a temperature change curve.

FIG. 5 is a partially cutaway perspective view of a garbage disposal according to an embodiment of the present invention.

FIG. 6 is a vertical cross-sectional view of a processing tank of a garbage disposal according to another embodiment of the present invention.

FIG. 7 is a cross-sectional view taken along the line XX of FIG. 6 showing the processing tank of the garbage disposal according to another embodiment of the present invention.

FIG. 8 is a diagram showing a temperature change curve and a time elapsed until drying when the water content changes.

FIG. 9 is a partially cutaway perspective view of a garbage disposal according to another embodiment of the present invention.

FIG. 10 is a vertical sectional view of a processing tank of a conventional garbage processing machine.

FIG. 11: X- of FIG. 10 of the processing tank of the conventional garbage processing machine
X cross section

[Explanation of symbols]

 1 Processing Tank 2 Heater 3 Stirring Blade 4 Carrier 5 Outlet 6 Motor 7 Stirring Shaft 8, 9 Sprockets 10 Chain 11 Lid 12 Temperature Detector 13 Inlet 14 Fan for Intake and Exhaust 15 First Temperature Detector 16 Second Temperature Detection Device 17 Mounting rod 18 Garbage processor main body 19 Control means 20 Drive part 21 Display part 22 Lid opening / closing confirmation switch 23 Ejection opening / closing confirmation switch 24 Rotation detection part 25 Heater temperature detection part 26 Fan rotation detection part 27 Fan heater 28 Third temperature detector 29 Fourth temperature detector 30 Exhaust port 191 Water content detection means 192 Water content calculation means 193 Time measurement means 194 Input means

Claims (7)

[Claims] 1. A treatment tank provided with a garbage introduction port, a stirrer for stirring a carrier contained in the treatment tank, a heating means provided in the treatment tank for heating the carrier, and a carrier for the carrier. A garbage disposal, comprising a water content detecting means for determining a water content and a water content calculating means for calculating a water content based on a detection signal from the water content detecting means. 2. A control means for comparing the water content with a set water content and for controlling the heating means to reduce the deviation if there is a deviation. Raw garbage processing machine. 3. A control means for comparing the water content with a set water content and controlling the stirring device to reduce the deviation if there is any deviation. The described garbage processor. 4. The water content detecting means comprises a first temperature detector provided on the inner surface of the treatment tank, and a second temperature detector located at a position within a predetermined distance from the position of the first temperature detector. It is a temperature detector, The garbage processing machine in any one of Claims 1-3 characterized by the above-mentioned. 5. The control means controls the heating means to a constant temperature, and the water content detecting means is a temperature detector provided at a position inside a predetermined distance from the mounting position of the heating means. The garbage processing machine according to any one of claims 1 to 3. 6. The water content detecting means heats the outside air to generate warm air, and causes the warm air to flow along the surface of the carrier, and a warm air generating device near the outlet of the warm air generating device. A third temperature detector provided for detecting the temperature of the warm air;
A fourth temperature detector that removes water from the carrier and detects the temperature of warm air discharged from an exhaust port provided in the processing tank; and temperatures detected by the third temperature detector and the fourth temperature detector. The garbage disposal according to any one of claims 1 to 3, further comprising a time measuring means for measuring a time until the difference becomes smaller than a predetermined value. 7. A warm air generator for heating the outside air to generate warm air and causing the warm air to flow along the surface of the carrier, and the water content detecting means in the vicinity of the outlet of the warm air generator. A first humidity detector provided for detecting the humidity of the warm air;
A second humidity detector that removes water from the carrier and detects the humidity of hot air discharged from an exhaust port provided in the processing tank; and humidity detected by the first humidity detector and the second humidity detector. The garbage disposal according to any one of claims 1 to 3, further comprising a time measuring means for measuring a time until the difference becomes smaller than a predetermined value.