JP2004290756A - Drying device in underwater decomposition type garbage treatment apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide the drying device in an underwater decomposition type garbage treatment apparatus capable of cleanly discharging dried matter obtained by drying a decomposition liquid without leaving the same in a drying chamber and capable of preventing the scattering of the dried matter to the periphery of a cyclone. <P>SOLUTION: The drying device 6 connected to a decomposition tank is equipped with the drying chamber 63 and a discharge mechanism 64 comprising a blower 67 and the cyclone 68. An exhaust blower 62a for introducing hot air having contributed to drying into the decomposition tank through a hot air pipe 62 is connected to the drying chamber 63 and the upper part of the cyclone 68 is to allowed to communicate with the suction side of the exhaust blower 62a through a communication pipe 68c. Further, a first detector 71 for detecting the opening and closing of an on-off door 70 for taking out or attaching a recovery box 69 and a second detector 72, which detects that the recovery box 69 is attached to a proper position, are provided, and the exhaust blower 62a and the blower 67 are operated so as to be controlled on the basis of the detection results of the first and second detectors 71 and 72. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a drying apparatus in an underwater decomposition type garbage disposal apparatus for treating garbage with microorganisms of a decomposition solution stored in a decomposition tank.
[0002]
[Prior art]
Conventionally, a so-called underwater decomposition type garbage treatment apparatus has been provided in which garbage is introduced into a garbage input device, crushed and then introduced into a decomposition tank, and the garbage is decomposed by microorganisms of a decomposition solution in this decomposition tank. I have.
[0003]
In such an underwater decomposition type garbage disposal apparatus, a part of the decomposition liquid is periodically pulled out from the decomposition tank to a drying apparatus in order to remove a residue or the like in the decomposition liquid, and dried in the drying apparatus. They are later discharged to the outside.
[0004]
As this drying apparatus, for example, as described in Patent Document 1, a dried substance (decomposed liquid) introduced into a room is heated and dried by a heater while being stirred by a plurality of rotary blades, and the dried dried substance is dried. Is conveyed to the discharge port by rotating the above-mentioned rotating blade in the reverse direction and discharged.
[0005]
[Patent Document 1]
JP 2000-329467 A
[Problems to be solved by the invention]
However, in the conventional method in which the dried material is discharged by the rotary motion of the rotary wing, the dried material cannot be completely discharged from the room due to its mechanism, and a part of the dried material remains in the room. I will. If a part of the dried material remains in the room, there is a problem that the dried product adheres to the inner peripheral surface of the room or adversely affects a subsequent drying treatment of the decomposition solution, resulting in a decrease in drying efficiency. Was.
[0007]
The present invention has been made in view of the above problems, and an object of the present invention is to enable a dried product of a decomposed liquid to be discharged neatly without leaving a dried product in a drying chamber. Underwater-decomposition type that can efficiently carry out the maintenance, prevent the dry matter from scattering around the cyclone at the time of taking out and attaching the collection box for collecting the dried matter, and perform maintenance etc. in a clean state An object of the present invention is to provide a drying device in a waste disposal device.
[0008]
[Means for Solving the Problems]
The drying device in the underwater decomposition type garbage disposal device according to the invention according to claim 1, wherein the garbage input to the garbage input device is crushed by the garbage input device and then introduced into the decomposition tank, and stored in the decomposition tank. In the underwater-decomposition-type garbage disposal apparatus that decomposes the decomposed liquid by microorganisms, the decomposing tank is connected to a drying device that pulls out a part of the decomposed liquid, performs a drying process, and then discharges the dried liquid. A drying chamber for drying the decomposed liquid, and a discharge mechanism for discharging the dried product dried in the drying chamber to the outside by blowing air, wherein the discharge mechanism includes a blower for blowing air into the drying chamber, A cyclone that separates dried matter discharged from the drying chamber together with the air from the air and collects the collected matter in a collection box. A first detector is provided so as to be freely attached to the cron and detects opening and closing of the opening and closing door. When the opening and closing door is opened, the operation of the blow blower is stopped based on the detection of the first detector. A drying device in an underwater decomposition type garbage disposal device, characterized in that:
[0009]
The drying device in the underwater-decomposition type garbage disposal device according to the invention according to claim 2, further comprising a second detector for detecting that the collection box is mounted at an appropriate position with respect to the cyclone, wherein the first detector is provided. And restarting the operation of the blower whose operation has been stopped, based on the detection result of the second detector.
[0010]
The drying device in the underwater-decomposition-type garbage disposal device of the invention according to claim 3, wherein the drying chamber is connected to an exhaust blower for introducing hot air that has contributed to drying to the decomposition tank through a hot-air tube, The upper part of the cyclone is communicated with the suction side of the exhaust blower through a communication pipe, and when the opening / closing door is opened, at least one of the exhaust blower and the blow blower based on the detection of the first detector. One of the operations is stopped.
[0011]
The drying device in the underwater-decomposition-type garbage disposal device according to the invention according to claim 4, further comprising a second detector for detecting that the collection box is mounted at an appropriate position with respect to the cyclone, wherein the first detector is provided. And restarting the operation of the blower or the exhaust blower whose operation has been stopped, or the operation of both the exhaust blower and the suction blower based on the detection result of the second detector.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0013]
FIG. 1 shows a schematic configuration of a drying apparatus in the underwater-decomposition type garbage processing apparatus of the present invention.
[0014]
In FIG. 1, reference numeral 1 denotes a garbage input device, which is provided with a hopper 11 for inputting garbage and a disposer 12 for crushing the input garbage. The garbage crushed by the disposer 12 is supplied to an introduction pipe. 13 and is introduced into the decomposition tank 2.
[0015]
The decomposition tank 2 is for decomposing garbage, and stores a decomposition liquid containing microorganisms for processing the garbage.
[0016]
Further, the decomposition tank 2 is provided with a stirrer 3, a circulation pump 4, and a diffusion member 5.
[0017]
In the stirrer 3, a stirring blade 33 provided on a rotating shaft 32 is rotatably provided by a rotation drive of a motor 31, and a flow for guiding a decomposition liquid stored in the decomposition tank 2 downward by rotation of the stirring blade 33 is provided. The solution is stirred so that the flow causes the entire decomposition solution to be homogeneous.
[0018]
The circulation pump 4 is disposed at the bottom of the decomposition tank 2 and is for sucking the decomposition liquid in the decomposition tank 2 and supplying it to the diffusion member 5. Are connected. The supply port 41a, which is the other end of the supply pipe 41, is disposed above the diffusion member 5, and the decomposition liquid is jetted from the supply port 41a to the diffusion member 5.
[0019]
The diffusion member 5 is for diffusing the decomposed liquid injected from the supply port 41a in the upper space, and supplies oxygen to the decomposed liquid by the diffusion to activate the activity of the microorganism. In other words, food waste is decomposed by aerobic microorganisms.
[0020]
Then, a downward flow of water generated by the stirrer 3 and a flow of water generated by suction of the circulating pump 4 generate a circulating flow in the decomposition liquid in the decomposition tank 2, and supply of the decomposition liquid to the liquid surface from the supply port 41 a. In conjunction with this, the whole decomposition solution is sufficiently stirred to homogenize. Thereby, the decomposition treatment of the decomposition liquid by the microorganism can be efficiently performed in a good state.
[0021]
On the other hand, the supply pipe 41 has a return pipe 42 branching from the middle thereof, and a part of the decomposition solution is supplied to the garbage through the return pipe 42 by opening and closing a valve 43 provided on the return pipe 42. It is returned to the input device 1.
[0022]
That is, by returning the decomposed liquid to the garbage input device 1 through the return pipe 42 and introducing the decomposed liquid into the decomposition tank 2, the garbage that has been input into the garbage input device 1 and crushed is decomposed together with the decomposed liquid through the introduction pipe 13. It is introduced into the tank 2.
[0023]
Further, a drying device 6 is connected to the decomposition tank 2. The drying device 6 is for periodically extracting and drying the residue and the like contained in the decomposition solution in the decomposition tank 2, and branching and connecting a branch tube 61 to the supply pipe 41. It is connected to the. The branch pipe 61 is provided with two open / close valves 61a and 61b, and a circulation pipe 61c connected to the decomposition tank 2 is connected between the open / close valves 61a and 61b.
[0024]
Usually, by opening the on-off valve 61a and closing the on-off valve 61b, a part of the decomposition solution is circulated to the decomposition tank 2 through the branch pipe 61 and the circulation pipe 61c. By closing the opening and closing valve 61a and opening the on-off valve 61b, the decomposed liquid accumulated during this time is introduced into the drying device 6.
[0025]
That is, instead of pulling out a large amount of the decomposition solution at once from the capacity side, the drying device 6 periodically pulls out an amount corresponding to the volume to perform the drying process. Is set so that the amount of the decomposition liquid accumulated in the branch pipe 61 during this period corresponds to this amount. As described above, a part of the decomposition solution is withdrawn and dried by the drying device 6 to adjust the salt concentration of the decomposition solution in the decomposition tank 2.
[0026]
The hot air that has contributed to the drying in the drying device 6 is guided to the upper space of the decomposition tank 2 through the hot air pipe 62 by the exhaust blower 62a (see FIG. 2). This hot air is used to maintain an appropriate temperature of about 40 ° C. at which the decomposition solution is activated, and in addition to the hot air, heat for decomposing microorganisms and heat for driving the circulation pump 4 are also used to maintain the temperature of the decomposition solution. Is contributing.
[0027]
Further, the hot air pipe 62 is provided with a second on-off valve 62b on the suction side of the exhaust blower 62a as shown in FIG. The second on-off valve 62b is open during drying in the drying chamber 63, and is closed when the discharge mechanism 64 discharges the dried product.
[0028]
Further, a water supply means (not shown) is provided in the decomposition tank 2, and the water level of the decomposition liquid is adjusted by appropriately supplying water into the decomposition tank 2 by the water supply means.
[0029]
Incidentally, the above-described drying device 6 is specifically configured as follows.
[0030]
FIG. 2 shows a specific configuration of the drying device 6.
[0031]
The drying device 6 includes a drying chamber 63 and a discharge mechanism 64 for discharging a dried substance such as a residue dried in the drying chamber 63, in the apparatus main body 6a.
[0032]
The drying chamber 63 is a part for drying the decomposed liquid drawn through the branch pipe 61 therein, and the branch pipe 61 and the hot air pipe 62 are communicated with each other.
[0033]
A heater (not shown) is provided below the bottom of the drying chamber 63, and a stirring plate 65 is provided on the inner bottom surface of the drying chamber 63 so as to be rotatable about a stirring shaft 65a by a stirring motor (not shown).
[0034]
Therefore, in the drying chamber 63, the extracted decomposition solution is heated by the heater while being stirred by the stirring plate 65, so that the decomposition solution is removed and dried.
[0035]
On the other hand, the discharge mechanism 64 includes a blow blower 67 and a cyclone 68.
[0036]
The blowing blower 67 is for blowing air into the drying chamber 63, and its blowing side is connected to the inside of the drying chamber 63 through a blowing pipe 67a. The tube end 67b of the blowing tube 67a is arranged at a predetermined distance from the bottom surface toward the bottom surface in the drying chamber 63.
[0037]
The cyclone 68 is for separating the dried matter discharged from the drying chamber 63 from the air and guiding it to the bottom to be collected. The upper part of the peripheral surface of the cyclone 68 is connected to the drying pipe 68a connected to the upper part of the drying chamber 63. The collection box 69 is provided at the bottom while being communicated with the inside 63.
[0038]
The discharge pipe 68a is provided with a first on-off valve 68b. The first opening / closing valve 68b is closed while drying is performed in the drying chamber 63, and is opened when the drying mechanism 64 discharges the dried product.
[0039]
The upper part of the cyclone 68 is connected to the hot air pipe 62 on the exhaust blower 62a side from the second on-off valve 62b through a communication pipe 68c.
[0040]
The collecting box 69 is for collecting and storing the dried matter separated from the air by the cyclone 68, and is detachably provided at the lower end of the cyclone 68. An opening / closing door 70 is provided to be openable and closable at a portion of the apparatus main body 6a facing the collection box 69, and the collection box 69 can be taken out of the cyclone 68 by opening the opening / closing door 70. Conversely, it can be attached to the cyclone 68 from outside. Thus, the dried matter collected in the collection box 69 is discarded to the outside, and the collection box 69 discarded with the dried matter is set again at the original position where it is attached to the cyclone.
[0041]
Further, the open / close door 70 is provided with a first limit switch 71 as a first detector for detecting the open / close state of the open / close door 70. The first limit switch 71 is turned on when the door 70 is closed, and is turned off when the door 70 is opened.
[0042]
A collection box 69 is disposed below the cyclone 68 at an appropriate position at the bottom of the cyclone 68, and a second limit switch as a second detector for detecting that both are connected in a good state. 72 are provided.
[0043]
The second limit switch 72 is turned on when the detection end 72a is pressed by the peripheral surface of the collection box 69 when the collection box 69 is arranged at an appropriate position as shown in FIG. It turns off when the collection box 69 is displaced from the proper position or is removed.
[0044]
Then, based on the detection signals from the first and second limit switches 71 and 72, the operations of the exhaust blower 62a and the blow blower 67 are controlled as described later.
[0045]
First, when the decomposition liquid is being dried in the drying chamber 63, the first opening / closing valve 68b is closed and the second opening / closing valve 62b is opened, whereby the hot air contributing to the drying is discharged from the drying chamber 63 to the exhaust blower 62a. Thereby, it is led directly to the upper space of the decomposition tank 2 through the hot air tube 62.
[0046]
On the other hand, when discharging the dried product dried in the drying chamber 63, the first opening / closing valve 68b is opened to allow the drying chamber 63 and the cyclone 68 to communicate with each other through the discharge pipe 68a, and the second opening / closing valve 62b is closed. In this state, air is blown from the pipe end 67b toward the bottom in the drying chamber 63 at once by the blowing blower 67, so that the powdery and granular dry matter collected at the bottom in the drying chamber 63 is transferred to the cyclone 68 through the discharge pipe 68a. It is introduced and collected in the collection box 69 from the bottom of the cyclone 68.
[0047]
Then, in such a drying / discharging operation, when the opening / closing door 70 is opened, the first limit switch 71 is turned from ON to OFF, thereby stopping the operation of the exhaust blower 62a and operating the blow blower 67. If it is in the middle, the operation of the blow blower 67 is also stopped. At this time, a situation confirmation lamp (not shown) is made to blink to notify the worker of the situation.
[0048]
When the door 70 is thus opened, the first limit switch 71 detects this and stops the operation of each of the blowers 62a and 67, thereby preventing the dry matter from scattering due to the opening of the door 70. it can. More specifically, when the opening / closing door 70 is unexpectedly opened while the exhaust blower 62a is in operation to remove the collection box 69, for example, the exhaust blower 62a sends outside air having a smaller load than the inside of the drying chamber 63 from the opening to the communication pipe 68c. , The dried matter in the collection box 69 rises upward and scatters in the apparatus main body 6a, thereby contaminating the surroundings. However, when the opening / closing door 70 is opened as described above, by stopping the exhaust blower 62a, it is possible to reliably prevent the above-mentioned scattering of the dried matter. In addition, if the exhaust blower 62a sucks a large amount of the dried up product, it may cause a failure of the exhaust blower 62a, but this can be prevented.
[0049]
Further, during the operation of the blow blower 67, since the dried matter in the drying chamber 63 is introduced into the cyclone 68, the scattering of the dried matter is further increased, but this can be surely prevented.
[0050]
Note that a buzzer may be sounded at the same time as the above-mentioned status confirmation lamp blinks.
[0051]
As a result, the dried material can be satisfactorily disposed of by the collection box 69 without any trouble.
[0052]
When the collection box 69 is taken out from the bottom of the cyclone 68, the second limit switch 72 is switched from ON to OFF, and by disposing the collection box 69 at an appropriate position after discarding the dried product, The second limit switch 72 turns ON. Then, by closing the opening / closing door 70 after disposing the collection box 69 at the appropriate position, the first limit switch 71 is turned on, and both the first and second limit switches 71 and 72 are turned on. As a result, the status confirmation lamp is turned on and the operation shifts to the original drying / discharging operation. For example, if the drying operation is performed when the collection box 69 is taken out, the exhaust blower 62a is operated to shift to the drying operation again. Further, if the discharging operation is performed when the collection box 69 is removed, the blowing blower 67 is operated together with the exhaust blower 62a to shift to the discharging operation again.
[0053]
As described above, since the operation returns to the drying / discharging operation only when the collection box 69 is arranged at an appropriate position and the opening / closing door 70 is closed, when the collection box 69 is set at the bottom of the cyclone 68 in a displaced state. Thus, it is possible to reliably prevent the collected dried material from scattering around the collection box 69.
[0054]
When the opening / closing door 70 is opened and the collection box 69 is taken out when the drying / discharging operation is not being performed, and set again to close the opening / closing door 70, the exhaust blower 62a and the blow blower 67 do not operate. The first and second limit switches 71 and 72 are turned on, and the drying and discharging operation is enabled. Therefore, the drying / discharging operation can be performed by a controller (not shown) at a preset time, for example, and the drying / discharging operation can also be performed by an operator.
[0055]
Next, processing of garbage by the underwater-decomposition type garbage processing apparatus configured as described above will be described.
[0056]
First, garbage generated in a kitchen or the like is put into the hopper 11 of the garbage input device 1 and crushed by the disposer 12. The crushed garbage is introduced into the decomposition tank 2 through the introduction pipe 13 together with the decomposition liquid introduced into the garbage input device 1 through the supply pipe 41 and the return pipe 42 by the circulation pump 4.
[0057]
In the decomposition tank 2, the introduced garbage is decomposed by microorganisms in the decomposition liquid. At this time, the decomposition liquid is introduced into the supply port 41a through the supply pipe 41 by the circulation pump 4 and sprayed from the supply port 41a to the diffusion member 5 to supply oxygen to the decomposition liquid and to remove hot air from the drying device 6. The decomposition liquid is kept at an appropriate temperature by supplying. Further, a circulating flow is generated in the decomposed liquid by the stirring action of the stirrer 3 and the suction action of the decomposed liquid by the circulating pump 4, so that the decomposed liquid is sufficiently stirred to be homogeneous. Therefore, the decomposition liquid is in a state where the activity of the microorganism is activated by these actions, and the decomposition treatment of garbage can be performed efficiently.
[0058]
On the other hand, in the drying device 6, residues and the like of the decomposition solution are periodically pulled out according to the amount of garbage put into the decomposition tank 2 and introduced into the drying chamber 63, and the residue and the like dried in the drying chamber 63 are removed. The dried material is discharged from the drying chamber 63 by the blowing of the air from the blowing blower 67 and collected in the collecting box 69 through the cyclone 68 as described above.
[0059]
As described above, the air is blown all at once by the blow blower 67 to discharge and collect the dried matter in the drying chamber 63, so that the inside of the drying chamber 63 is cleaned by the blown air, and the dried matter is dried. It can be discharged without remaining in the inside 63, whereby the subsequent drying process can be performed efficiently and smoothly.
[0060]
Further, when the opening / closing door 70 is opened to discard the dried material collected in the collection box 69 or when the collection box 69 having discarded the dried material is attached again, the detection of the first and second limit switches 71 and 72 is performed. By controlling the operations of the exhaust blower 62a and the blower blower 67 on the basis of the above, it is possible to reliably prevent the dry matter from scattering around the cyclone 68, thereby improving the environment around the cyclone 68. Maintenance can be performed in a clean and easy state.
[0061]
Note that the above-described embodiment merely shows a preferred embodiment of the present invention, and the present invention is not limited to this, and various design changes can be made within the scope.
[0062]
For example, although a limit switch has been described as an example of the first and second detectors, the detector is not limited to a limit switch, and various sensors can be applied in addition to a proximity switch and a photoelectric switch.
[0063]
Further, in the present embodiment, the case where the upper part of the cyclone 68 is communicated with the hot air pipe 62 by the communication pipe 68c has been described, but the upper part of the cyclone 68 is opened into the apparatus main body 6a without providing the communication pipe 68c. It may be.
[0064]
In this case, if the blower 67 is operating when the opening and closing door 70 is opened, the operation of the blowing blower 67 is stopped by detecting the first limit switch 71, so that the vicinity of the cyclone 68 due to the opening of the opening and closing door 70. To prevent dry matter from scattering. Then, when the collection box 69 is arranged at an appropriate position and the opening / closing door 70 is closed, the operation of the blow blower 67 is restarted by detecting the first and second limit switches 71 and 72. Further, when the opening and closing door 70 is opened and the collection box 69 is taken out in a state where the blower blower 67 is not operated, and set again to close the opening and closing door 70, the blower 67 is not operated, but the first and second blowers are not operated. The two limit switches 71 and 72 are turned ON, and the discharge operation is enabled. Therefore, the discharge operation can be performed by operating the blow blower 67 at a preset time, for example, by a control device (not shown), and the discharge operation can be performed by operating the blow blower 67 also by the operation of the operator. Can be.
[0065]
【The invention's effect】
As described above, according to the drying apparatus in the underwater-decomposition type garbage disposal apparatus of the present invention, air is blown by the discharging mechanism to discharge and collect dried matter in the drying chamber, so that the blowing air is blown into the drying chamber. Thus, the dried material can be discharged without leaving the drying room in the drying chamber, and the subsequent drying process can be performed efficiently and smoothly.
[0066]
Moreover, by controlling the operation of the exhaust blower and the blower blower based on the detection of the first detector or the first and second detectors, it is possible to surely prevent the dry matter from scattering around the cyclone. Thus, the environment around the cyclone can be improved, and maintenance and the like can be performed in a clean and easy state.
[Brief description of the drawings]
FIG. 1 is a diagram showing an overall schematic configuration of a drying apparatus in an underwater-decomposition type garbage processing apparatus of the present invention.
FIG. 2 is a side view illustrating a configuration of a drying device.
FIG. 3 is a plan view showing an arrangement state of a second limit switch for detecting whether or not a collection box is arranged at an appropriate position.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Garbage input apparatus 2 Decomposition tank 6 Drying apparatus 62 Hot air pipe 62a Exhaust blower 63 Drying chamber 64 Discharge mechanism 67 Blowing blower 68 Cyclone 68c Communication pipe 70 Opening / closing door 71 First limit switch (first detector)
72 Second limit switch (second detector)

Claims (4)

In the underwater-decomposition type garbage processing device, the garbage put into the garbage input device is crushed by the garbage input device and then introduced into the decomposition tank, and decomposed by microorganisms of the decomposition liquid stored in the decomposition tank.
A drying device for extracting a part of the decomposition solution and performing a drying process and discharging the dried solution is connected to the decomposition tank. The drying device includes a drying chamber for drying the extracted decomposition solution, and a dried product dried in the drying chamber. And a discharge mechanism that discharges air to the outside by blowing air. The discharge mechanism separates and collects dry matter discharged from the drying chamber together with air from a blower that blows air into the drying chamber. A cyclone for collecting in the box, and a collection box is provided so as to be taken out of the cyclone or attached to the cyclone through the opening / closing door, and a first detector for detecting opening / closing of the opening / closing door is provided. Drying the underwater decomposition type garbage disposal apparatus, wherein the operation of the blower blower is stopped based on the detection of the first detector when the garbage is opened. Apparatus. A second detector for detecting that the collection box is attached to an appropriate position with respect to the cyclone; and the blower blower stopped operating based on detection results of the first detector and the second detector. The drying device in the underwater-decomposable garbage disposal device according to claim 1, wherein the operation of (1) is restarted. An exhaust blower for introducing hot air that has contributed to drying to the decomposition tank through a hot air tube is connected to the drying chamber, and an upper portion of the cyclone is connected to a suction side of the exhaust blower through a communication tube. ,
2. The system according to claim 1, wherein when the door is opened, the operation of at least one of the exhaust blower and the blower is stopped based on the detection of the first detector. A drying device in the underwater decomposition-type garbage disposal device described in the above. A second detector for detecting that the collection box is attached to an appropriate position with respect to the cyclone; and the blower blower stopped operating based on detection results of the first detector and the second detector. The drying apparatus according to claim 3, wherein the exhaust blower or both the exhaust blower and the suction blower are restarted.

Images