JPH10174953A - Garbage drying apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently evaporate moisture of garbage by jetting jet nozzle water in a state crossing the opening of the connection part communicating with a housing container at an almost right angle to reduce the pressure in the housing container. SOLUTION: Garbage is housed in a housing container 10 and a door 12 is closed to set the interior of the housing container 10 to an airtight state by a seal material 11. The interior of the housing container 10 is heated by the heater 13 built in a floor surface 14 to heat moisture in garbage. The circulating pump 23 of a vacuum device 20 is driven to jet water of a water tank 21 into the water tank 21 from a jet nozzle 22 to be circulated. Since the jetting from the jet nozzle 22 is performed in a state crossing the opening 5a of a communication part 5 at an almost right angle, the container 10 is sucked to be reduced in pressure. Therefore, the b.p. of water in garbage lowers to be evaporated at low temp. and garbage can be efficiently dried without diffusing a malodor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage drying apparatus, and more particularly to a garbage container containing garbage which is heated to a negative pressure while the inside of the container is kept at a negative pressure. The present invention relates to a garbage drying apparatus having a configuration feature in which moisture in garbage can be efficiently vaporized and dried at low cost and safely.

[0002]

2. Description of the Related Art Conventionally, garbage, which is produced in a relatively large amount from homes, is not only difficult to incinerate because of its high moisture content when incinerated, but also rots and liquefies if left as it is. It is a representative of those that emit unpleasant odors and are extremely unsanitary for the domestic hygiene environment.

Conventionally, various types of garbage dryers have been manufactured and sold on the market, but most of them have garbage stored in a container for collecting garbage at normal pressure and the garbage is kept stationary. Hot air is blown while leaving or moving, thereby drying garbage.

On the other hand, there is known a garbage disposal apparatus provided with a so-called water drawer at a position downstream of the garbage crusher. The operation principle of such a water squeezing machine is to mechanically press crushed garbage using, for example, a screw conveyor or the like, thereby squeezing out moisture in the garbage.

[0005]

However, conventional hot air dryers have the problem that the drying efficiency is poor and not only long drying time is required but also a bad smell is generated during the drying process. Further, in a conventional dryer using hot air, the drying temperature must be increased, so that a large amount of fossil fuel such as electricity, gas or petroleum (heavy oil) must be used as heat source energy (high cost), and There were various inconveniences, such as the machine (apparatus) itself being inevitably upsized and becoming expensive.

Most of the above-mentioned garbage disposal apparatus is based on the principle that most of the garbage disposal apparatus mechanically presses the crushed garbage and thereby squeezes out the water in the garbage. Although the size of the garbage can be reduced to about 1/5, there are various problems that not only can the garbage not be treated odorless but also the garbage cannot be dried to a "smooth" state.

[0007] Therefore, recently, especially in each household, which is a main place where garbage is generated, the weight of the garbage is reduced, and the cost of transporting the garbage to a public incineration plant for incineration is reduced. In order to improve efficiency or increase incineration efficiency in garbage incineration plants and reduce incineration costs,
It is desired to develop a convenient garbage dryer that can be processed quickly, safely, and odorlessly, has low running costs, and is excellent in handling.

The present invention has been intensively developed in view of such circumstances, and a problem to be solved is to solve the above-mentioned problems of the conventional garbage dryer (apparatus). It is an object of the present invention to construct a garbage drying apparatus having a configuration feature in which garbage can be efficiently vaporized and dried at low cost and safely, and provide the apparatus at a low cost.

[0009]

Means for Solving the Problems The present inventors have conducted intensive studies to solve the above-mentioned problems, and as a result, in particular, the boiling point of water in garbage was reduced by reducing the pressure inside the storage container to a negative pressure. As a result, the energy-saving garbage drying device was completed.

That is, first, the gist of the invention of claim 1 is that "there is provided a heating means for raising the temperature of the inside and a door which can be opened and closed, and the inside of which is stored with garbage. A garbage drying apparatus comprising: a storage container capable of generating a negative pressure; and a decompression device provided via a communication portion communicating with the storage container, wherein the decompression device discharges excess stored water naturally. A water storage tank having an outlet, a jet nozzle arranged in close proximity to the opening of the communication portion, and a water tank disposed below the water storage tank and pumping water in the water storage tank toward the jet nozzle, A circulating pump that circulates water in the water storage tank by injecting the water from the nozzle to open the connecting portion so that the water from the jet nozzle is opened to reduce the pressure inside the storage container to a negative pressure. In garbage drying device "which is characterized in that so as to exit in a substantially perpendicular state.

According to the garbage drying apparatus configured as described above, first, while the garbage is being stored, the inside is heated to a temperature not so high, and the inside of the container is reduced by the decompression device. Make it a negative pressure atmosphere. Thus, the boiling point of water in the garbage in the storage container can be lowered, and the evaporated water is guided to the decompression device along with the bad smell of the garbage.

The reason why the atmosphere in the container is a negative pressure atmosphere is as follows.
This is the action of spraying water from the jet nozzle. In other words, since the jet nozzle is arranged close to the opening of the communication part, the water sprayed from the jet nozzle flows into the water storage tank while entraining the gas in the communication part, so that the inside of the storage container is A negative pressure atmosphere is created.

Of course, the water generated from the garbage and introduced into the decompression device is cooled and liquefied by the water sprayed from the jet nozzle in the decompression device. They are collected in circulating water.

In this way, the water and the odor in the garbage collected by the water sprayed from the jet nozzle are:
The water is naturally discharged into the sewage through a discharge port provided in the water storage tank.

[0015] That is, according to this drying apparatus, since the entire inside is kept in an air-tight state, the garbage can be efficiently vaporized without causing an unpleasant odor, and can be produced at low cost and safely. Garbage can be dried.

The gist of the invention according to claim 2 is that the garbage drying apparatus according to claim 1 has the following features.
`` The temperature-raising means is disposed on a vent pipe, an electromagnetic valve attached to an intermediate portion of the vent pipe and operating on and off by sensing a temperature atmosphere in the storage container, and a discharge port side of the vent pipe. And the outlet of the ventilation pipe is connected to a hot-air supply chamber communicating with the inside of the storage container via a plurality of ventilation holes formed in the bottom surface of the storage container. " .

That is, the garbage drying apparatus according to the second aspect can exhibit the same operation as that of the first aspect, and also can increase the temperature of the garbage in the storage container by using energy such as electric power. It is possible to do it reliably while saving, and the garbage can be dried more efficiently.

In the garbage drying apparatus according to the second aspect, air heated by a heater can be introduced into the storage container in order to actively dry the garbage in the storage container. Since the introduction of the heated air is controlled by an electromagnetic valve that operates on and off by sensing the temperature atmosphere in the storage container, it is controlled so that heating by the heater is performed at an optimal time. It is.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION The garbage disposal apparatus according to the present invention will be described in detail based on an embodiment of the present invention. However, this is a typical one, and unless it exceeds the gist thereof, The present invention is not limited by the following examples.

FIG. 1 is a cross-sectional view schematically showing a main part of a garbage drying apparatus 1 according to a first embodiment of the present invention. A container 10 having a door 12 provided to be openable and closable with a sealing material 11 interposed therebetween in order to maintain the airtight state, and having a temperature raising means 13 for raising the temperature of the internal atmosphere; A decompression device 2 provided through a communication portion 5 communicating with the container 10 so as to make the inside a negative pressure atmosphere.
0.

The storage container 10 is formed in a box body with a bottom having a garbage door, and a door 12 which is openable and closable is provided at the garbage door with a sealing material 11 interposed therebetween, and the inside is shut off from the outside. It is kept airtight. Further, a heater 14 (heating means 13) 13a is built in the floor surface 14, and a stainless steel plate is laid on the entire inner surface, so that the internal atmosphere can be heated and the garbage can be indirectly heated. It has become. However, the heating means is an electric heater 1
The temperature is not limited to 3a or the position of the heater is not limited. For example, a known temperature raising means such as an infrared heater can be used as the temperature raising means other than the electric heater.

The pressure reducing device 20 includes a water storage tank 21 having a discharge port 24 for naturally discharging the excess stored water (W), and a jet nozzle 22 disposed close to the opening 5 a of the communication section 5.
And a circulating pump arranged at the lower part of the water storage tank 21 for pumping water in the water storage tank 21 toward the jet nozzle 22 and ejecting the water from the jet nozzle 22 to circulate the water in the water storage tank 21. 23, and jets water from the jet nozzle 22 in a state substantially orthogonal to the opening 5a of the connecting portion 5 so that the inside of the storage container 10 can be made to have a negative pressure atmosphere. Has become.

Next, the operation of the garbage drying apparatus 1 of the first embodiment will be described. First, when garbage is put in the container 10 and the door 12 is closed, the door 12 is
, So that the inside of the container 10 can be kept in an airtight state in which the inside of the container 10 is shut off from the outside.
Next, when electricity is supplied to a heating heater (heating means 13) 13a built in the floor 14, the interior of the container 10 is heated by the heating heater 13a, and the moisture in the garbage is reduced as the internal atmosphere is heated. Heated.

When the circulating pump 23 provided in the decompression device 20 is driven, the circulating pump 23 draws water in the water storage tank 21 from the lower part of the water storage tank 21 toward the jet nozzle 22, 22
A series of circulating systems in which water is collected in the water storage tank 21 by injecting the water into the water storage tank 21 is constructed.

Then, when water is vigorously ejected from the jet nozzle 22 in a state substantially orthogonal to the opening 5a of the communication portion 5,
The communication part 5 is preferably communicated above the container 10, and the inside of the container 10 is kept in an airtight state that is isolated from the outside, so that the atmosphere inside the container 10 is led to a negative pressure. be able to.

That is, according to the garbage drying apparatus 1, the action of raising the temperature of the garbage stored in the storage container 10 has a function of guiding the inside of the storage container 10 to a negative pressure atmosphere by the decompression device 20. In addition, since the boiling point of the water in the garbage can be lowered, the water in the garbage can be evaporated at a relatively low temperature, and the garbage can be efficiently drained without a stench. Can be vaporized.

When the moisture (steam) evaporated in the container 10 reaches the decompression device 20 via the communication section 5, the steam is cooled and liquefied by the circulating water injected from the jet nozzle 22. This can be collected in the water storage tank 21 together with the bad smell. Then, when the collected water is added and the water level in the water storage tank 21 becomes higher than the position of the discharge port 24 provided above the water storage tank 21, the water can be naturally discharged into the sewage through the discharge port 24. it can.

That is, the garbage can be continuously dried at low cost and safely, and the water for the garbage is dried by a so-called distillation method, and the offensive odor is discharged together with the water. No solid matter is contained, and therefore, even if it flows into the sewage, unlike the above-mentioned conventional garbage disposal apparatus, the sewage pipe and the drain pipe are not clogged.

Next, the garbage drying apparatus 1 'of the second embodiment, that is, the garbage drying apparatus 1' of the second embodiment, will be described. The drying device 1 is a heating unit 1 provided in the container 10.
Since the other configurations are the same except for the point that the configuration of No. 3 is different, only the temperature raising means will be described, and the above description will be referred to for the other configurations.

FIG. 2 shows a garbage drying apparatus 1 'of the second embodiment.
FIG. 2 is a cross-sectional view schematically illustrating a main part of the container 10 of FIG.
As shown in FIG. 2, the temperature raising means 13 provided in the garbage drying apparatus 1 ′ of the second embodiment includes a ventilation pipe 15 and a temperature atmosphere Solenoid valve 16 which operates on-off by detecting
And a heater 13a arranged on the discharge port 15a side of the ventilation pipe 15. Outlet 1 of ventilation pipe 15
5 a is open into a hot air diffusion chamber 17 provided below the bottom surface 14 of the storage container 10. On the other hand, the bottom surface 1 of the container 10
4, a large number of ventilation holes 14a are formed, and the container 10 and the hot air diffusion chamber 17 communicate with each other through these ventilation holes 14a.

Therefore, the garbage drying apparatus 1 'of the second embodiment has substantially the same operation and effect as the garbage drying apparatus 1 of the first embodiment, and also has the garbage of the first embodiment. The following excellent operation and operation effects that the drying device 1 cannot perform can be obtained.

First, garbage is stored in the container 10, the door 12 is closed, the inside of the container 10 is shut off from the outside, and the electromagnetic valve 16 is kept open. When air is supplied to the inside of the storage container 10 through the, the inside of the storage container 10 forcibly generates high-speed convection, and the temperature atmosphere in the storage container 10 and thus the garbage itself are rapidly heated. When the temperature of the garbage itself, that is, the temperature in the storage container 10 reaches a desired vaporization temperature of water, the solenoid valve 16 is closed, and a negative pressure atmosphere in the storage container 10 is effectively formed, and the garbage is dried. Can be done quickly.

Then, when the temperature atmosphere in the storage container 10 and, consequently, the temperature of the raw garbage itself drops and the drying of the water becomes difficult, the solenoid valve 16 is opened again, and as described above, the electromagnetic valve 16 is moved toward the storage container 10. Air is supplied, forced convection inside the storage container 10, and the garbage itself is heated. The garbage is dried while repeating these series of operations. When the drying of the garbage is completed, the apparatus 1 'itself stops automatically.

That is, according to the garbage drying apparatus 1 ', the inside of the container 10 is forcibly convected while the garbage is stored, thereby rapidly raising the temperature.
In combination with the action of guiding the inside of the container 10 to a negative pressure atmosphere, the boiling point of the water in the garbage is lowered, and the water in the garbage is evaporated at a relatively low temperature, thereby preventing the odor from drifting. The garbage can be efficiently dried.

The garbage drying apparatus according to the first and second embodiments of the present invention has been described above. However, this is a typical example, and in implementing the garbage drying apparatus of the present invention, The present invention is not limited by the present embodiment,
Therefore, for example, the internal volume of the storage container, the temperature raising means, the airtightness of the storage container, and the like are matters whose design can be changed as appropriate without changing the gist of the present invention.

[0036]

As described above, the garbage drying apparatus of the present invention is compact, extremely easy to handle, quick, safe, low-cost, continuously efficient, and odorless. In addition, even if the wastewater flows into the sewage, the sewage pipe and the drainpipe are not clogged.

That is, since the weight of garbage can be reduced particularly in each household, which is a main place where garbage is generated, the cost of transporting the garbage to a public incineration plant for incineration can be reduced, and the efficiency of transportation efficiency can be reduced. It can be widely used as a garbage disposal device capable of improving the efficiency of incineration at a garbage incineration plant and reducing the cost of incineration.

In particular, in the garbage drying apparatus according to the second aspect, the temperature of the garbage in the storage container can be surely increased while saving energy such as electric power. It can be done efficiently.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a main part of a garbage drying apparatus according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing a main part of a garbage drying apparatus according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Garbage drying apparatus 1 '... Garbage drying apparatus 5 ... Communication part 5a ... Opening 10 ... Container 11 ... Sealing material 12 ... Door 13 ... Heating means (heating heater) 14 ... Floor surface 14a ... Vent hole 15 ... Ventilation pipe 15a ... Discharge port 16 ... Solenoid valve 17 ... Hot air supply chamber 20 ... Decompression device 21 ... Water storage tank 22 ... Jet nozzle 23 ... Circulation pump 24 ... Discharge port W ... Stored water

Claims (2)

[Claims] 1. A storage container having a heating means for raising the temperature of the inside and having an openable and closable door, capable of holding the garbage therein and having a negative pressure inside the storage container, and a communication communicating with the storage container. A decompression device provided through a portion, a garbage drying device comprising: a decompression device, wherein the decompression device has a water storage tank having a discharge port that naturally discharges surplus stored water, and an opening of the communication portion. And a jet nozzle arranged at a lower portion of the water storage tank, pumping water in the water storage tank toward the jet nozzle, and circulating the water in the water storage tank by injecting the water from the jet nozzle. And a circulating pump, wherein water from the jet nozzle is ejected in a state substantially orthogonal to the opening of the connecting portion in order to make the inside of the storage container a negative pressure. Garbage drying equipment. 2. A vent pipe, an electromagnetic valve attached to an intermediate portion of the vent pipe and turned on and off by sensing a temperature atmosphere in the storage container, and an outlet of the vent pipe And a discharge port of the ventilation pipe is connected to a hot air supply chamber communicating with the inside of the storage container through a plurality of ventilation holes formed in a bottom surface of the storage container. 2. The method according to claim 1, wherein
The garbage drying device as described.