JPH07241545A - Garbage treatment apparatus - Google Patents

Abstract

PURPOSE:To reduce energy consumption and to enable the treatment of garbage within a short time and to make an apparatus small-sized and inexpensive as a whole by providing a garbage treatment apparatus with a squeeze plate squeezing the garbage in a garbage container, a squeeze plate driving means and a cooling water circulation device circulating the waste water in a waste water tank to a water jacket. CONSTITUTION:A garbage container 30 receiving garbage is set to the interior of a hermetically closed container 11 and a squeeze plate driving means 37 is operated to press a squeeze plate 36 to squeeze out the greater part of the moisture contained in garbage from the part of a water filtering material. This squeezed-out garbage moisture is discharged to a drain tank 49 from a drain pipe 47 to be sent to the water jacket 43 separating a heating means 40 and the inner wall of the hemetically closed container 11 by a cooling water circulating device 55 to be used in cooling action. The fine solid in the discharged water is perfectly removed along with an offensive smell during the circulation to the water jacket 43. After the greater part of moisture is removed by the squeeze plate 36, the heating means 40 is energized and a vacuum pump 22 is simultaneously operated to remove the residual garbage moisture.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage disposal device for treating garbage such as kitchen garbage discharged from kitchens such as hotels and restaurants.

[0002]

2. Description of the Related Art Kitchen waste, such as vegetables and seafood scraps discharged from the kitchen, is generally said to be garbage and easily decomposes and contains a large amount of water, which makes disposal of waste extremely difficult. Particularly in hotels and restaurants that discharge a large amount of such garbage, even general public treatment facilities cannot process the waste, and some sort of garbage disposal equipment is installed for private use.

However, today, such garbage processing devices are roughly classified into an incineration type and a drying type.

Garbage itself is flame-retardant, and in the incineration system, it is incinerated by mixing it with a fuel such as oil or by blowing a strong flame of oil or gas.

On the other hand, in the case of the dry type, the water contained in the kitchen waste is evaporated by heating, and in addition to the devising of the heating means (for example, high frequency induction heating means), the kitchen waste is removed so as to promote the evaporation of the water. There is an increasing number of systems in which a container is housed in a closed container and the pressure is reduced by a vacuum pump or the like.

[0006]

However, regardless of the incineration method or the drying method, the thermal
Most of the mechanical energy is consumed for removing a large amount of water contained in kitchen waste. For example, a large amount of fuel consumed in the incineration system compensates for the latent heat of vaporization that accompanies the evaporation of water in the kitchen waste to maintain the internal temperature at the combustion temperature, and in the drying system a large amount of partial pressure of steam is generated. In order to reduce the temperature, a large-capacity decompression means is required, and it is necessary to always continue a powerful decompression operation during processing. Further, in any of these methods, a condenser for condensing a large amount of steam generated and a separate cooling energy for that are required.

In any case, the conventional ones have a problem that not only the fuel cost, the electric power cost, etc., but also the operation time becomes long and the operator's restraint time also becomes long for monitoring.

The present invention has been made by paying attention to such a problem in the conventional apparatus, and requires very little implantation energy for garbage treatment, requires a low running cost, and can quickly treat garbage. Is possible,
Moreover, it is an object of the present invention to provide a garbage disposal device which can be constructed in a compact and inexpensive manner as a whole.

[0009]

Means for Solving the Problems The above-mentioned object is to provide a kitchen container, at least a part of which is made of a water-filterable material, for housing kitchen waste, a closed container for housing the kitchen container so that the kitchen container can be taken out freely, and Depressurizing means such as a vacuum pump for depressurizing, and squeezing the kitchen waste stored in the kitchen container in a state of being housed in the closed container, and water contained in the kitchen waste is removed from the water-filterable portion of the kitchen container. A squeezing plate to be exuded, a squeezing plate driving means for applying a pressing force to the squeezing plate, a heating means provided to surround the garbage container in the closed container, and a heating means for heating the garbage container, and leaching from the garbage container. Moisture discharging means for discharging the water of the kitchen waste from the closed container, a drainage tank for containing the discharged water discharged from the closed container, and the heating means are provided so as to surround the outside, Garbage treatment according to the present invention, which comprises a water jacket for shutting off the heat of the heating means from the inner wall of the closed container, and a cooling water circulating device for circulating the waste water contained in the drain tank to the water jacket. Achieved by the device.

[0010]

[Operation] The kitchen container in which the kitchen waste is stored is set in the closed container, and when the container is closed, the squeezing drive means first operates to press the squeeze plate, the kitchen waste in the kitchen container is squeezed and included in the kitchen waste. Most of the retained water is squeezed out of the portion of the water filterable material.

The kitchen waste water squeezed out of the garbage container is discharged from the bottom of the closed container to the drain tank by the water discharging means,
This water is sent to a water jacket that separates the heating means and the inner wall of the closed container by a cooling water circulation device and is used for cooling. During circulation to the water jacket, odors and the like are completely removed from fine solid matter in the water.

After most of the water has been removed by the pressing plate, the heating means is energized, and at the same time, the depressurizing means is started to remove the remaining kitchen waste water, so that the drying process can be accomplished in an extremely short time. .

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the garbage processing device 10 has a cylindrical closed container 11 forming an outer shell, and an upper cover 1 which is openable and closable by a hinge 12 at the upper part.
3 are provided. The reference numeral 14 is a packing for keeping airtightness.

The bottom portion 11a of the closed container 11 has an inclined bottom so that it is easy to collect and discharge the kitchen waste water accumulated therein as described later. A pressure reducing means such as a vacuum pump 2 is also provided in the closed container 11 via an extraction pipe 20 and a gas deodorizing device 21.
2 is attached. At the tip of the vacuum pump 22, there is provided a vapor trap 23 that traps some of the water vapor remaining in the exhaust gas. Furthermore, when the drying process of the kitchen waste is completed and the upper cover 13 is opened to take out the kitchen container 30 which will be described later from the inside, a vacuum breaking valve for sending air into the interior to restore the vacuum state to the atmospheric pressure state. 24 is attached. A cooling water pipe 15 for cooling is wound around the outer circumference of the closed container 11.

On the other hand, a cylindrical garbage container 30 for storing garbage is removably placed on a container stand 31 fixed to the bottom 11a along the center line CL of the closed container 11.

As shown in FIG. 2, the garbage container 30 is formed in a cylindrical shape, and at least the cylindrical side wall thereof allows only the exudation of the liquid when the garbage is squeezed, and prevents the solid matter from protruding. It has performance and is configured to withstand strong squeezing force. Although various materials can be considered as such a water-filterable material, for example, a powdered stainless sintered product is suitable. Sintered stainless steel products can be easily obtained with a filtration degree of about 10 microns, depending on the particle size of the powder, the degree of pressure before sintering, etc., and those with extremely fine particles can increase the filtration rate to several microns. be able to. Further, the material impregnated with a certain kind of polymer material is said to have a submicron filtration performance. In this embodiment, as shown in FIG. 2, two parts 30a and 30b having different filtration rates are used.

A squeezing device 35 is provided for squeezing and extracting by a mechanical means at once, instead of removing the water content of the garbage stored in the garbage container 30 by an inefficient heating means.

The compression device 35 descends along the inner wall of the garbage container 30 and presses against the stored garbage to press it.
And the pressing plate drive means 3 for applying a pressing force to the pressing plate 36.
It consists of 7 and. The compression plate 36 is provided with a watertight means, for example, a piston ring 36a, so that the water exuded from the garbage by the compression does not get around to the back surface.
Of course, it does not allow a small amount of water to wrap around on the back surface of the compression plate 36, and even if a small amount of water wraps around, it can be sufficiently removed in the heating step described later. The watertight means and the piston ring 36a are exclusively for enhancing the compression effect. It is well known that a cylinder is used as the squeezing plate driving means 37 in this embodiment, and a piston 38 and a rod 38a are provided inside.

The squeezing plate driving means 37 is provided with a switching valve, a fluid source and the like in addition to the cylinder shown in the drawing, but these may be either pneumatic or hydraulic (hydraulic) type.
In either method, the pressure is required for the cylinder, the flow rate is negligible, and an extremely small capacity supply device may be used.

A heating means 40 is provided surrounding the outer circumference of the garbage container 30. The heating means 40 may be an ordinary resistance heating type, but it goes without saying that other types are not excluded.

Surrounding the heating means 40, the heating means 40 is further surrounded by the heat generated by the heating means 40 to generate heat.
A water jacket 43 is provided to shut off from the inner wall of 1.

On the other hand, the inclined bottom 11a of the closed container 11
The water accumulated in the water is collected in a drain tank 49 through a drain pipe 47 which is a water discharging means and a drain valve 48 which is also a water discharging means. The first tank 49 is provided with a water level gauge 50 for controlling the level of the stored liquid within a certain range.

As one of the features of the present invention, there is provided a cooling water circulation device 55 which serves both to purify the waste liquid stored in the drain tank 49 and to cool the inside of the closed container 11.

The cooling water circulation device 55 is provided on the supply side to the water jacket 43, and a water pump 56 and a filter 57 for sucking and sending the waste water of the drain tank 49, and a filter 57.
The water jacket 43 comprises a purifying device 58 and a cooler 59, which are provided on the discharge side of the water jacket 43 and are filled with activated carbon or the like.

At the tip of the cooler 59, a water purification tank 60 for storing purified water is provided. The water purification tank 60 and the drainage tank 49 are communicated with each other by a communication valve 61, which is automatically opened / closed by a signal from the water level gauge 50 to control the water level of the drainage tank 49 within a certain range.

Further, a reflux pipe 62 is arranged to connect the outlet side of the filter 57 and the inlet side of the water pump 56, and a flow control valve 63 is interposed. The flow rate control valve 63 is connected to the temperature sensor 6 provided at the inlet of the purifying device 58.
4, the water temperature of the water jacket 43 is maintained at, for example, about 80 degrees.

On the other hand, the cooler 59 is controlled by the temperature sensor 65 provided in the water purification tank 60.

There is provided a control device for sequentially carrying out a series of operations after the garbage container 30 accommodating the garbage is set in the closed container 11 and the upper cover 13 is closed.

Next, the operation will be described.

The upper cover 13 is opened, the garbage container 30 containing the garbage is placed on the container base 31, and the upper cover 13 is closed. Then, a start button (not shown) is pressed to start a series of operations as described below.

First, fluid, in the embodiment air, is sent to the upper part of the piston 38 of the squeezing plate drive means 37, and the piston rod 3
The pressing plate 36 descends via 8a, and the kitchen waste in the kitchen container 30 is squeezed.

Before the above operation, when the apparatus 10 is started for the first time after installation, or when the water in the drain tank 49, the water purification tank 60, etc. has been emptied due to inspection or overall cleaning, Fill both sides with fresh water to the prescribed water level. The squeezing device 35 may be made startable under the condition that the water level gauge of the drainage tank 49 is at a predetermined water level.

Now, when the pressing plate 36 is pressed, the kitchen container 30 is squeezed out of the kitchen container 30 and the inclined container 11 is inclined.
Accumulates on the bottom 11a. Due to this mechanical pressurization, most of the water content of the kitchen waste is exuded in a few minutes or ten or more minutes, resulting in a semi-dry state. Compared with the conventional one using only thermal means, it reaches a semi-dry state in an incomparably short time, and the power to be injected into the squeezing device 35 is an enormous amount of fuel required for the conventional one. By comparison, it is so small that it is almost insignificant.

The drain valve 48 is opened at the same time when the pressing operation is started.

After pressurizing for a predetermined time, air pressure is applied to the lower side of the piston 38, the pressing plate 36 rises, and the kitchen container 30
Is released. During this time, the kitchen waste water accumulated in the bottom portion 11a flows down into the drain tank 49. Then, when the water level in the tank reaches a predetermined maximum level, the water pump 56 automatically starts to feed the liquid in the tank into the water jacket 43, and when the water level in the water purification tank 60 exceeds a predetermined level, the water leaks from the overflow pipe 66. .

As the pressing plate 36 moves up, the drain valve 48 is closed with a slight time lag, and at the same time, the heating means 40 is heated.
Is activated, and at the same time, the vacuum pump 22 is started.

In this way, the inside of the closed container 11 approaches a vacuum, and the remaining water evaporates from the kitchen waste in the kitchen container 30 heated by the heating means 40 and is discharged by the vacuum pump 22 together with the air. The water vapor is condensed and captured by the steam trap 23. On the other hand, during this period, the water level in the drainage tank 49 is changed by the signal from the water level gauge 50 to the communication valve 61.
Is controlled to be maintained in a constant range, and its temperature is controlled to be maintained in a predetermined range by the cooler 59.
Further, by providing a vacuum gauge, the operation of the vacuum pump 22 can be appropriately intermittently operated.

The temperature control of the outer wall of the closed container 11 by the cooling water pipe 15 can be automatically controlled by a thermometer with contacts, but the operating valve can be manually operated as appropriate in consideration of the environment and the like. Is enough.

After the heating operation is carried out for a predetermined time, the heating means 40 is de-energized, the vacuum breaking valve 24 is operated at the same time, and the sealed container 11 gradually approaches the atmospheric pressure. However, as the cooling operation, the vacuum pump 22 continues the temporary operation,
The operation of the water pump 56 is also continued.

After the cooling operation is continued for a predetermined time, the vacuum pump 22 and the water pump 56 are stopped and the automatic operation is completed.

Then, the upper cover 13 is opened and the garbage container 3 is opened.
0 is taken out, the dried kitchen waste is taken out, and the next kitchen garbage is loaded and put in the closed container 11. Alternatively, the kitchen waste may already be housed and another kitchen container 30 prepared separately may be housed.

<Modification>

The configuration and the operation mode of the present invention are not limited to the above-mentioned embodiment, and the following modifications can be considered, for example.

(1) In the above embodiment, a pneumatic or hydraulic cylinder is used as the squeezing device, but an electric motor or a fluid type motor may be used to drive the screw.

(2) The cooling operation time is not a predetermined time but may be operated by a predetermined temperature signal from the temperature sensor 64, for example.

(3) Although all of the above embodiments are of the automatic operation type, since each operation is executed in a short time, if the operator manually operates while observing the instrument,
It can be constructed at a lower cost.

(4) In the embodiment, the heating step is followed by the heating step. However, if the controller is provided with a means for selecting drying or semi-drying, and if complete drying is not necessary, the operation is completed only in the pressing step. You may do it.

[0049]

EFFECT OF THE INVENTION The kitchen waste treating apparatus of the present invention comprises a kitchen container, at least a part of which is made of a water-filterable material, for housing kitchen waste, a closed container for storing the kitchen container in a removable manner, and an inside of the closed container. Depressurizing means such as a vacuum pump for depressurizing, and squeezing the kitchen waste stored in the kitchen container in a state of being housed in the closed container, and water contained in the kitchen waste is removed from the water-filterable portion of the kitchen container. A squeezing plate to exude, and a squeezing plate driving means for applying a pressing force to the squeezing plate,
In the closed container, provided around the kitchen container, a heating means for heating the kitchen container, a water discharging means for discharging the water content of the kitchen waste exuded from the kitchen container from the sealed container, and a discharge from the sealed container A drainage tank for containing the discharged moisture and a water jacket provided to surround the heating means from the outside and for shutting off the heat of the heating means from the inner wall of the closed container, and a water jacket contained in the drainage tank. Since it was equipped with a cooling water circulation device that circulates wastewater into the water jacket, the thermal energy required for drying is only the drying of the semi-dry state by squeezing, the injection energy is extremely small, and it can be done in a short time. It is possible to dispose of garbage, and the entire device can be made compact and inexpensive.

Further, since the cooling water circulating device is provided with a filter means for removing fine solids contained in the garbage water and a purifying device for removing odors and the like, purification of the garbage water discharged during the circulation of the cooling water is carried out. It was possible to achieve both cooling and environmental consideration at the same time.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a garbage processing device.

FIG. 2 is a vertical cross-sectional view of a garbage container.

[Explanation of symbols]

 10 Garbage Disposal Device 11 Airtight Container 22 Vacuum Pump (Decompressing Means) 30 Garbage Container 36 Compressing Plate 37 Compressing Plate Driving Means 40 Heating Means 43 Water Jacket 47 Drain Pipe (Moisture Discharging Means) 48 Drain Valve (Moisture Discharging Means) 49 Drainage Tank 55 Cooling Water Circulation Device 57 Filter (Filter Means) 58 Purification Device

Claims (3)

[Claims] 1. A kitchen waste processing device for drying kitchen waste discharged from a kitchen, wherein at least a part of the kitchen waste is formed of a water-filterable material, and a kitchen container for storing kitchen waste, and the kitchen container is housed so that the kitchen container can be taken out freely. A closed container, a decompression means such as a vacuum pump for decompressing the inside of the closed container, and squeezing the kitchen waste stored in the kitchen container in a state of being housed in the closed container to remove water contained in the kitchen waste. A squeeze plate that exudes from the water-filterable portion of the garbage container, a squeeze plate driving means that applies a pressing force to the squeeze plate, and the sewage container is provided in the closed container to heat the sewage container. A heating means, a water discharging means for discharging the water content of the kitchen waste exuded from the garbage container from the closed container, a drainage tank for containing the discharged water discharged from the closed container, and the heating means It is provided so as to be surrounded from the section,
A garbage treatment device comprising: a water jacket for shutting off heat of a heating means from an inner wall of the closed container; and a cooling water circulating device for circulating the waste water contained in the drain tank to the water jacket. 2. The bottom portion of the closed container is inclined so that the water exuded from the garbage container is concentrated in a part, and the water discharge means is connected to the lowest inclined portion of the bottom portion of the closed container. And a drainage pipe installed on this drainage pipe,
The kitchen treatment apparatus according to claim 1, further comprising a drain valve that is opened and closed appropriately. 3. The cooling water circulation device is provided with a filter means for removing fine solids contained in the kitchen water and a purifying device for removing odor and the like while circulating the cooling water to the water jacket. The kitchen waste processing apparatus according to claim 1.