JP2003094025A - Method for volume reduction of refuse including paper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for volume reduction of refuse capable of easily and surely breaking a lot of paper sheets such as paper containers and paper napkins included in the discharged refuse. SOLUTION: The refuse including paper sheets is stowed into a volume reducing chamber 5 and water is charged into the volume reducing chamber 5 to permeate into paper sheets. Then, while the paper sheets in the volume reducing chamber 5 are properly agitated and broken by an agitating means 6, inside of the volume reducing chamber 5 is heated and the pressure is reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for reducing the volume of waste containing a large amount of paper, which is discharged a lot in fast food restaurants and the like.

[0002]

2. Description of the Related Art For example, in a fast food store such as a hamburger shop, a paper container, a garbage container,
Many papers such as paper napkins are discharged as garbage and are thrown into the garbage bag. In this case, when the garbage bag is full,
You can take out the full garbage bag and replace it with a new one. Such exchanging of garbage bags will be frequently performed in proportion to the comings and goings of customers. If the garbage bags are frequently replaced, it is necessary to secure a storage place for a large amount of garbage bags. In addition, the cost required for the municipalities to collect a full garbage bag will be large.

[0003] Therefore, recently, there is provided a dust storage chamber provided with a heating means and a stirring blade inside, and the dust stored in the dust storage chamber is heated while stirring to dry and reduce the volume of the waste. Many methods and devices have been proposed.

[0004]

However, in the above-mentioned conventionally proposed method and apparatus for drying and reducing the volume of waste, the discharged waste contains many papers such as paper containers and paper napkins. In that case, there was a problem that the papers were difficult to break, could hardly be broken, and were entangled with the stirring blades.

It is an object of the present invention to provide a method for reducing the volume of waste which enables easy and reliable breaking of many papers such as paper containers and paper napkins contained in discharged waste. It is in.

[0006]

The constitution of the present invention which achieves the above object is as follows. In the invention according to claim 1, the waste containing the paper is stored in the volume-reducing chamber, water is introduced into the volume-reducing chamber to permeate the paper, and then the paper in the volume-reducing chamber is appropriately removed. It is characterized in that the volume reduction chamber is heated and decompressed while being agitated by the agitating means and broken.

As described above, when water is put into the volume-reducing chamber containing the dust containing the paper, the water permeates the paper, and the paper shrinks and softens, so that the paper easily breaks. Next, the papers that have penetrated the water are agitated by the agitating means, so that the papers are easily broken. Then, while stirring by the stirring means, the interior of the volume reducing chamber is heated and the pressure is reduced, so that the paper scraps broken in the volume reducing chamber are dried and the volume of other food waste is reduced.

According to the second aspect of the present invention, garbage containing papers is stored in the volume reducing chamber, water is introduced into the volume reducing chamber to permeate the papers, and the papers in the volume reducing chamber are appropriately adjusted. It is characterized in that the volume reduction chamber is heated and decompressed while being agitated by the agitation unit and ruptured, and then, while continuing the agitation and rupture of the paper in the volume reduction chamber by the agitation unit.

As described above, the water is put into the volume-reducing chamber containing the waste containing the paper, and the paper in the volume-reducing chamber is agitated by an appropriate agitating means to break the moisture, so that the water is absorbed into the paper. The paper can be efficiently and quickly permeated, and the papers are shrunk and softened in a short time to easily break, and the papers are easily broken by the stirring by the stirring means. Next, since the volume reduction chamber is heated and the pressure is reduced while continuing the stirring by the stirring means, other raw garbage is dried and reduced in volume together with the papers broken in the volume reduction chamber.

The invention described in claim 3 is the invention according to claim 1 or 2.
The water introduced into the volume reducing chamber described in 1 above is steam.

As described above, when the water content in the volume reducing chamber is steam, the steam spreads to the details of the paper and condenses on the surface to form water drops, so that the water drops adhere to the entire paper,
Moisture can be made to penetrate into the details of the papers in a short time, whereby shrinkage and softening of the papers are improved, and breakage of the papers can be performed more easily in a short time. As described above, since water can be penetrated into the details of the paper in a short time as described above, the amount of water that shrinks and softens the paper can be small, and can be reduced in the volume reduction chamber by heating and decompressing the volume reduction chamber. Drying of other food waste along with broken paper can be done in a short time, improving work efficiency.

According to a fourth aspect of the present invention, waste containing papers is housed in a volume reduction chamber and hermetically sealed, and steam is introduced into the sealed volume reduction chamber while pressurizing the volume reduction chamber. The inside of the volume reducing chamber is heated and decompressed while the paper inside the volume reducing chamber is agitated by an appropriate agitating means and broken while being heated.

As described above, when the dust containing papers is housed in the volume reduction chamber and sealed, and steam is introduced into the sealed volume reduction chamber, the vapor spreads to the details of the papers and condenses on the surface thereof to form water droplets. As a result, water drops adhere to the entire paper, allowing water to penetrate into the details of the paper in a short time, and when the volume reduction chamber is pressurized, the temperature of the steam rises, Since the permeation of water into the paper is further improved, the papers shrink and soften with a small amount of steam, that is, the amount of water. Next, the papers that have penetrated the water are agitated by the agitating means, so that the papers are easily broken. Then, while stirring by the stirring means, the interior of the volume reducing chamber is heated and the pressure is reduced, so that the paper scraps broken in the volume reducing chamber are dried and the volume of other food waste is reduced. The drying at this time can be performed in a short time because the amount of water permeating the paper is small, and the working efficiency is improved.

According to a fifth aspect of the present invention, paper-containing dust is housed in a volume reduction chamber and hermetically sealed, steam is introduced into the sealed volume reduction chamber, and the volume reduction chamber is pressurized to produce paper. The paper inside the volume reduction chamber is stirred by an appropriate stirring means and ruptured at the same time, while the paper inside the volume reduction chamber is continuously stirred and broken by the stirring means while heating the volume reduction chamber. It is characterized in that the pressure is reduced at the same time.

As described above, when dust containing papers is housed in the volume reduction chamber and sealed, and steam is introduced into the sealed volume reduction chamber, the vapor spreads to the details of the papers and condenses on the surface thereof, resulting in water droplets. As a result, water drops adhere to the entire paper, allowing water to penetrate into the details of the paper in a short time, and when the volume reduction chamber is pressurized, the temperature of the steam rises, Since the permeation of moisture into the paper is further improved, the paper shrinks and softens with a small amount of steam, that is, the amount of moisture, and at the same time, the paper in the volume reducing chamber is agitated by an appropriate agitating means to break the paper. To allow water to penetrate efficiently and quickly,
The papers shrink and soften in a short time, and the papers are easily broken by the stirring by the stirring means. Then, while continuing the stirring by the stirring means, the volume reduction chamber is heated and the pressure is reduced, so that the paper scraps broken in the volume reduction chamber and other food waste are also dried and reduced in volume. The drying at this time can be performed in a short time because the amount of water permeating the paper is small, and the working efficiency is improved.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a method for reducing the volume of waste containing paper according to the present invention will be described below. First, a first example of the embodiment of the present invention will be described. The method for reducing the volume of waste containing paper in this example is to store the waste containing paper in the volume reduction chamber,
Water is put into the volume reduction chamber to penetrate the paper. When the required amount of water has been added to the volume reduction chamber, the water supply is stopped, and then the volume reduction chamber is heated while the paper that has penetrated the moisture is stirred and broken by an appropriate stirring means. And reduce the pressure.

The necessary amount of water to be put into the volume reducing chamber is an amount that shrinks and softens the papers to such an extent that the water is permeated by the stirring of the stirring means and the papers can be easily broken.
It is not particularly limited as long as the stirring means can easily break the paper in which the water has penetrated. In addition, the water introduced into the volume reducing chamber is not particularly limited, but is preferably steam. If the water is steam, it spreads to the details of the paper and condenses on the surface into water droplets.
Water droplets adhere to the entire paper and allow water to penetrate into the details of the paper in a short time.
The softening is improved, and the papers can be broken more easily in a short time.

Next, a second example of the embodiment of the present invention will be described. The volume reduction method for waste containing paper in this example is to store waste containing paper in the volume reduction chamber, add water into the volume reduction chamber to penetrate the paper, and remove the paper inside the volume reduction chamber. Stir with appropriate stirring means to break. As described above, when the paper in the volume reducing chamber is agitated by an appropriate agitating means and broken while pouring water into the volume reducing chamber, the moisture can efficiently and quickly permeate into the paper. When a necessary amount of water has been added to the volume reducing chamber, the supply of water is stopped, and then the volume reducing chamber is heated and decompressed while continuing to stir and break the papers in the volume reducing chamber.

The necessary amount of water to be put into the volume reducing chamber shrinks and softens the paper so that the paper permeated with the water can be easily broken by stirring by the stirring means, as in the first example. The amount is not particularly limited as long as it can easily break the water-permeated papers by the stirring means. In addition, the water introduced into the volume reducing chamber is not particularly limited, but is preferably steam. If the water is steam, it spreads to the details of the paper and condenses on the surface to form water droplets, so water droplets adhere to the entire paper and allow the water to penetrate into the details of the paper in a short time. As a result, the shrinkage and softening of the papers are improved, and the papers can be broken more easily in a short time.

Next, a third example of the embodiment of the present invention will be described. The volume-reducing method for waste containing paper in this example is performed by accommodating waste containing paper in a volume-reducing chamber and hermetically sealing the same, introducing steam into the closed volume-reducing chamber and pressurizing the volume-reducing chamber. Permeates water into paper. When the required amount of steam has been injected into the volume reduction chamber, the injection of steam is stopped. At this time, the required amount of steam, that is, water, to be put into the volume reducing chamber is an amount that shrinks and softens the paper to the extent that the paper permeated by the stirring means can be easily broken, as in the first example. However, it is not particularly limited as long as it is possible to easily break the water-permeated papers by the stirring means, in this example, since the steam is introduced into the closed volume reduction chamber and the volume reduction chamber is pressurized, When thrown in, the vapor spreads to the details of the paper and condenses on the surface to form water droplets, so that the water droplets adhere to the entire paper, allowing water to penetrate into the details of the paper in a short time, and then decrease. When the pressure in the chamber is increased, the temperature of the steam rises and the penetration of water into the paper is further improved, so that a small amount of water is sufficient. Next, while heating the inside of the volume reducing chamber while stirring and breaking the paper in the volume reducing chamber by an appropriate stirring means, the pressure is reduced.

Next, a fourth example of the embodiment of the present invention will be described. The volume-reducing method for waste containing paper in this example is performed by accommodating waste containing paper in a volume-reducing chamber and hermetically sealing the same, introducing steam into the closed volume-reducing chamber and pressurizing the volume-reducing chamber. Moisture is permeated into the papers, and at the same time, the papers in the volume reduction chamber are agitated by an appropriate agitating means and broken. When the required amount of steam has been injected into the volume reduction chamber, the injection of steam is stopped. In this way, when steam is injected into the closed volume reduction chamber and pressure is applied to the volume reduction chamber, the injected vapor spreads to the details of the paper and condenses on the surface to form water droplets. Attached,
Moisture can be penetrated into the details of the paper in a short time, and when the pressure in the volume reduction chamber is increased, the temperature of the steam rises and the penetration of water into the paper is further improved. By the amount of the papers shrinking and softening, and at the same time, the papers in the volume reduction chamber are agitated and broken by an appropriate agitating means to allow water to efficiently and quickly permeate into the papers. At this time, the required amount of steam, that is, water, to be put into the volume reducing chamber is an amount that shrinks and softens the paper to the extent that the paper permeated by the stirring means can be easily broken, as in the first example. Although it is not particularly limited as long as the water-permeated paper can be easily broken by the stirring means, in this example, steam is introduced into the closed volume chamber as described above and the volume chamber is pressurized. Therefore, the temperature of the steam rises and the penetration of water into the paper is further improved, and a small amount of water is sufficient. Next, while heating the inside of the volume reducing chamber while stirring and breaking the paper in the volume reducing chamber by an appropriate stirring means, the pressure is reduced.

Next, an example of a waste volume reducing apparatus for carrying out the volume reduction method for dust containing paper according to the present invention will be described with reference to FIGS. 1 to 3.
Will be described. FIG. 1 is a vertical cross-sectional view of a part of a waste volume reducing apparatus for carrying out the volume reduction method of waste containing paper according to the present invention,
2 is a plan view of the heating chamber shown in FIG. 1, and FIG. 3 is a vertical cross-sectional view of a bucket which is housed in the heating chamber and constitutes a volume reducing chamber.

The waste volume reducing apparatus of this embodiment comprises a bottomed cylindrical heating chamber 1 having a heating means 2, and the heating chamber 1.
A rotary shaft 3 which penetrates through the center of the bottom part 1a of the base plate and has a tip protruding into the heating chamber 1, a rotary drive source 4 for rotating the rotary shaft 3 outside the heating chamber 1, and a waste to be treated. A bucket 5 having a bottomed cylindrical shape and detachably accommodated in the heating chamber 1 to form a volume reduction chamber; and a bucket 5 provided in the center of a bottom portion 5a in the bucket 5 and attached to and detached from the tip of the rotating shaft 3. A stirring blade 6 that constitutes a stirring means that is rotatably connected and rotates to stir and break the dust contained in the bucket 5, and the heating chamber 1.
7 for closing the opening 1b of the heating chamber 1
It comprises a decompression means 8 for decompressing the inside, and a water feeding means 9 for removably feeding water into a bucket 5 which is detachably accommodated in the heating chamber 1 and constitutes a volume reducing chamber.

In the heating means 2 of the heating chamber 1, the heating chamber 1 has a double structure of an inner cylinder wall 1c and an outer cylinder wall 1d having a common bottom portion 1a, and the inner cylinder wall 1c.
It is constituted by sealing the tip between the outer cylinder wall 1d and the outer cylinder wall 1d with the sealing material 10, and the internal space between the inner cylinder wall 1c and the outer cylinder wall 1d is the heat source chamber 11. A heat source supply passage 12 for supplying a heat source to the heat source chamber 11 and a heat source discharge passage 13 for discharging the heat source passing through the heat source chamber 11 are connected to the heating chamber 1, and the heat source supply passage 12
Is connected to a heat source generator (not shown).

Although steam is used as the heat source in this example, the heat source may be hot water. Although not shown, the heating means 2 of the heating chamber 1 is configured by embedding an electric heater in the cylinder wall of the heating chamber 1 or winding an electric heater around the outer circumference of the cylinder wall of the heating chamber 1. May be. Further, the heating means 2 of the heating chamber 1 is, as in this example,
The heating chamber 1 does not necessarily have to be provided, and another heating means may be separately installed.

A vacuum evacuation passage 15 connected to a vacuum pump 14 is connected to the heating chamber 1, and constitutes a pressure reducing means 8 for reducing the pressure inside the heating chamber 1. A water supply passage 16 connected to a water source (not shown) is connected to the heating chamber 1, and constitutes a water feeding means 9 for supplying water into the bucket 5 in the heating chamber 1. ing.

The heating chamber 1 configured as described above
Is fixed to the housing 17 with the opening 1b thereof facing upward, with the central axis inclined with respect to the vertical line (for example, about 45 °).

The opening 1b of the heating chamber 1
The lid 7 that closes the heating chamber 1 is supported by a guide rail (not shown) provided in the housing 17 and moves in parallel to the opening surface of the opening 1b of the heating chamber 1 to open the opening of the heating chamber 1. 1b can be closed airtightly. The movement for opening and closing the lid 7 is performed by a chain 2 suspended on a sprocket 19 rotated by a motor 18.
The lid 7 is attached to 0, and the operation is performed by driving the motor 18.

The bucket 5 detachably housed in the heating chamber 1 has a handle 21 attached to its opening. The handle 21 has such a height that the handle 21 does not extend outside from the opening 1b of the heating chamber 1 when the bucket 5 is housed in the heating chamber 1. Further, a protrusion 22 is provided on the inner surface of the bucket 5 so as to serve as a resistance member for dust that tends to slip and co-rotate with the inner surface of the bucket 5 due to the rotation of the stirring blade 6.

The stirring blade 6 for stirring and breaking the dust in the bucket 5 is provided at the bottom 1a of the heating chamber 1.
Rotating shaft 3 protruding into the heating chamber 1 from the center of
It is composed of a boss portion 23 that is detachably connected to the tip 3a and a plurality of blades 24 that radially protrude from the boss portion 23 at equal intervals in the circumferential direction.

The boss portion 23 has a tip end 3a of the rotary shaft 3 projecting into the heating chamber 1 at one end face thereof.
Has a fitting connection hole 23a which is detachably fitted to the boss portion 23 and transmits the rotation of the rotating shaft 3 to the boss portion 23. The end portion where the fitting connection hole 23a is formed is the bottom portion 5a of the bucket 5. It is mounted rotatably through the center and through a bearing 25. The tip 3a of the rotating shaft 3 and the boss 2
In the fitting connection hole 23a formed on the end face of the rotary shaft 3, the tip 3a of the rotary shaft 3 is formed into a prism, and the fitting connection hole 23a is formed.
Is formed in a square hole corresponding to the tip 3a of the rotary shaft 3.

As described above, the bucket 5 provided with the stirring blade 6 on the bottom portion 5a is detachably accommodated in the heating chamber 1, but when the bucket 5 is accommodated in the heating chamber 1, A predetermined gap S is formed between the inner surface and the outer surface of the bucket 5. On the inner surface of the heating chamber 1, a predetermined gap S is maintained between the heating chamber 1 and the outer surface of the bucket 5, and the tip 3a of the rotary shaft 3 protruding into the heating chamber 1 and the stirring provided on the bucket 5 are provided. A guide / spacer 26 for aligning the boss portion 23 of the blade 6 is provided. The guide / spacer 26 is not always used for the heating chamber 1.
Need not be provided on the inner surface of the bucket 5, but may be provided on the outer surface of the bucket 5.

Further, since the gap S is formed between the inner surface of the heating chamber 1 and the outer surface of the bucket 5 as described above, the radiation heat transfer is dominant in the heat transfer from the heating chamber 1 to the bucket 5. Therefore, the coating for promoting the radiation is applied to the inner surface of the heating chamber 1 and the outer surface of the bucket 5 in order to improve the emissivity and increase the heat transfer amount. As radiation paint, Okitsumo Color Flon 10F
-4 (manufactured by Okitsumo Co., Ltd.) is used.

In the waste volume reducing device constructed as described above, dust containing paper is put into the bucket 5 housed in the heating chamber 1 and the motor 18 is driven to close the lid 7 in the closing direction. And the opening 1b of the heating chamber 1 is closed. From this state, water is introduced into the bucket 5 from the water supply passage 16 which is connected to the water source and constitutes the water introducing means 9, and the water is permeated into the paper to shrink and soften. At this time, if the water content is steam, the paper has good permeability, and the shrinkage and softening of the paper are improved. Further, when steam is supplied as water, the opening 1b of the heating chamber 1 is closed, and the pressure of the steam to be injected pressurizes the inside of the heating chamber 1, the temperature of the steam rises, and the water permeates into the paper. Is further improved, the papers shrink and soften with a small amount of steam, that is, moisture.

At the same time when water is put into the bucket 5, the rotary drive source 4 is driven to rotate the stirring blades 6,
The papers in the bucket 5 can be agitated and broken. Agitation at this time is not always necessary, but when water is introduced into the bucket 5 and at the same time the paper in the bucket 5 is agitated and broken by the agitation blade 6, the water can efficiently and quickly permeate into the paper. The papers shrink and soften in a short time, and the papers are more easily broken by the stirring by the stirring blades 6.

In this way, when the water has penetrated into the papers in the bucket 5, the feeding of the water into the bucket 5 is stopped. Next, while stirring the papers in the bucket 5 by the stirring blades 6 and breaking the papers, and at the same time when the water is put into the buckets 5, the papers in the buckets 5 are stirred and broken by the stirring blades 6 at the same time. At this time, while continuing to stir and break the paper in the bucket 5 by the stirring blade 6 as it is, the heating unit 2 heats the heating chamber 1 and the vacuum pump 14
Is driven to reduce the pressure in the heating chamber 1, that is, the bucket 5.

By the stirring by the stirring blade 6 at this time, the papers in the bucket 5 are surely broken, and the heating means 2
Heats the heating chamber 1 and drives the vacuum pump 14 to reduce the pressure in the heating chamber 1, that is, the bucket 5, so that the papers broken in the bucket 5 and other garbage are also dried and reduced in volume. .

[0038]

As described above, according to the method for reducing the volume of waste containing paper according to the present invention, the waste containing paper is stored in the volume reducing chamber, and water is put into the volume reducing chamber to make the paper. The inside of the volume-reducing chamber is heated and decompressed while the paper in the volume-reducing chamber is agitated and broken by an appropriate stirring means while heating and reducing the pressure inside the volume-reducing chamber. By adding water to the paper, the water permeates into the paper, and the paper shrinks and softens, and becomes easy to break. By stirring the water-permeated paper with a stirring means, the paper can be easily Can be broken into, and while stirring by stirring means,
Since the inside of the volume reducing chamber is heated and the pressure is reduced, other raw garbage can be dried and reduced in volume together with the papers broken in the volume reducing chamber.

When the water introduced into the volume reducing chamber is steam, the steam spreads to the details of the paper and condenses on the surface to form water drops, so that the water drops adhere to the entire paper,
Moisture can be made to penetrate into the details of the papers in a short time, whereby shrinkage and softening of the papers are improved, and breakage of the papers can be performed more easily in a short time. Further, when the water introduced into the volume reducing chamber is steam, the volume of the vapor is increased by sealing the volume reducing chamber, introducing the vapor into the closed volume reducing chamber and pressurizing the volume reducing chamber. Further, since the penetration of water into the paper is further improved, the paper can be shrunk and softened with a small amount of steam, that is, the amount of water, and the drying time can be shortened, so that the work efficiency is improved. In addition, when water is put into the volume-reducing chamber containing the waste containing paper and the paper in the volume-reducing chamber is agitated and broken by an appropriate stirring means, the moisture can efficiently and quickly permeate into the paper. You can
Since papers can be shrunk and softened in a short time, work efficiency is improved.

[Brief description of drawings]

FIG. 1 is a partially omitted vertical cross-sectional view showing an example of a waste volume reducing apparatus for carrying out a volume reduction method for waste containing paper according to the present invention.

FIG. 2 is a plan view of the heating chamber shown in FIG.

FIG. 3 is a vertical cross-sectional view of a bucket which is housed in the heating chamber shown in FIG. 1 and constitutes a volume reducing chamber.

[Explanation of symbols]

1 heating chamber 1a bottom 1b opening 1c Inner tube wall 1d outer wall 2 heating means 3 rotation axes 3a Tip of rotating shaft 4 rotary drive source 5 buckets 5a bottom 6 stirring blades 7 lid 8 decompression means 9 Moisture input means 10 Seal material 11 heat source room 12 Heat source supply passage 13 Heat source discharge passage 14 Vacuum pump 15 Vacuum passage 16 Water supply passage 17 housing 18 motor 19 sprocket 20 Chien 21 handle 22 protrusion 23 Boss 23a Mating connection hole 24 wings 25 bearings 26 Guide and spacer S gap

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[Procedure amendment]

[Submission date] September 26, 2001 (2001.9.2)
6)

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 2

[Correction method] Change

[Correction content]

[Fig. 2]

Front page continuation (51) Int.Cl. ⁷ Identification code FI theme code (reference) B02C 18/16 B09B 3/00 ZAB (72) Inventor Daisuke Yoshikawa 7 Horie-cho, Matsuyama-shi, Ehime Miura Industrial Co., Ltd. F Term (reference) 4D004 AA12 CA03 CA04 CA13 CA42 CB02 CB13 CB26 CB31 CC03 DA01 DA06 DA07 4D065 CA05 CC06 DD30 EB12 ED20 ED31 ED32 4G036 AC36 4G037 CA03 EA02

Claims (5)

[Claims] 1. A garbage containing paper is stored in the volume-reducing chamber,
A feature is that water is introduced into the volume-reducing chamber to permeate the paper, and then the paper in the volume-reducing chamber is stirred and broken by an appropriate stirring means while heating and depressurizing the volume-reducing chamber. A method for reducing the volume of garbage that contains paper. 2. A waste containing paper is stored in the volume-reducing chamber,
Water is introduced into the volume reduction chamber to permeate the paper, and the paper in the volume reduction chamber is agitated and broken by an appropriate stirring means, and then the paper in the volume reduction chamber is agitated and broken by the agitation means. A method for reducing the volume of waste containing paper, which comprises heating the volume of the volume reduction chamber and reducing the pressure while continuing. 3. The method for reducing the volume of dust containing paper according to claim 1, wherein the water content introduced into the volume reduction chamber is steam. 4. Garbage containing papers is housed and sealed in a volume reduction chamber, steam is introduced into the sealed volume reduction chamber, and the volume reduction chamber is pressurized to allow water to penetrate into the papers. In addition, a method for reducing the volume of waste containing paper, characterized in that the paper in the volume reducing chamber is stirred and broken by an appropriate stirring means while heating and reducing the pressure in the volume reducing chamber. 5. Garbage containing papers is housed and sealed in a volume reduction chamber, steam is introduced into the sealed volume reduction chamber, and the volume reduction chamber is pressurized to allow water to permeate the papers and simultaneously reduce the volume. Stir the papers in the chamber with appropriate stirring means to break,
A method for reducing the volume of waste containing paper, which comprises heating and reducing the pressure in the volume reduction chamber while continuously stirring and breaking the paper in the volume reduction chamber by the stirring means.