JP2003300044A - Garbage treating machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a garbage treating machine in the treating tank of which garbage can be dried and treated biologically with high heat efficiency without emitting a bad smell to the outside. <P>SOLUTION: This garbage treating machine is provided with a hopper 12 having a door for feeding garbage, the treating tank 4 for heating the garbage thrown from the hopper 12 by a heater 5 arranged at the bottom while agitating the garbage, a blower 15 for sucking the vapor generated in the tank 4 and sending the sucked vapor to the outside of the tank 4, a heat exchanger 16 having a double tube structure for making the vapor sent by the blower 15 pass through the internal tube 20a of the exchanger 16 to liquefy the vapor and returning the hot air generated in the external tube 20b when the vapor is liquefied to the tank 4 through a hot air returning pipeline 21, and a radiator 17 for furthermore liquefying the vapor passing through the tube 20a without being liquefied and returning the hot air generated when the vapor passing through the tube 20a is liquefied to the tube 20b of the exchanger 16. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage processing machine for bioprocessing or drying garbage.

[0002]

2. Description of the Related Art A raw garbage processing machine for crushing raw garbage by a crusher and then bioprocessing it by sterilization while stirring in a processing tank is disclosed in JP 2001-286853 A or JP 2000.
It is publicly known, for example, in Japanese Patent Publication No. 176424.

[0003]

However, it is difficult to transfer all the raw garbage crushed by the crusher to the processing tank, and it is inevitable that a part of the crushed raw garbage remains in the crusher. Moreover, it is mechanically impossible to make the crusher airtight because there is always communication between the crusher and the treatment tank. Can be treated while being kept in the treatment tank, but it is difficult for the odor caused by fermentation in the crusher,
Because of the crusher, there was a case where a bad odor was generated outside.

Further, although a large amount of steam is generated from the processing tank, the drying efficiency is poor due to insufficient liquefaction countermeasures against the steam, and the steam naturally contains odors. There is also a problem that steam and its liquefied water from the tank give off a bad odor.

An object of the present invention is to solve the above problems and to provide a garbage processing machine which can heat and efficiently perform drying and bioprocessing in a processing tank without generating a bad odor outside.

[0006]

SUMMARY OF THE INVENTION A raw garbage treating machine according to the present invention comprises a hopper with a door for feeding raw garbage, and a treatment tank for heating the raw garbage introduced from the hopper by a heater at the bottom while stirring. And a blower for sucking the vapor generated in the treatment tank to the outside of the treatment tank, and the vapor sucked by the blower is passed through the inner pipe to be liquefied, and the hot air generated in the outer pipe at that time is returned to the hot air. A heat exchanger having a double pipe structure that returns to the treatment tank through a pipe, and a radiator that further liquefies the steam that has passed through the inner pipe of the heat exchanger and returns the hot air generated at that time to the outer pipe of the heat exchanger. And are equipped with.

Further, it is preferable to provide a drain separator for collecting the water separated by the heat exchanger and the radiator, and to provide this drain separator with a deodorizing section for deodorizing and exhausting.

[0008] The heat exchanger is preferably one in which a plurality of sets of double pipe elements each having an internal and external double pipe structure are sequentially connected.

[0009] Preferably, the treatment tank is a vertical cylinder, and a stirring blade that is swirled around a stirring shaft that is a vertical axis is built in the treatment tank, and hot air from a hot air return pipe is supplied from an outer peripheral portion of the treatment tank. Introduce.

Further, a hood is provided between the hopper and the processing tank, and steam from the processing tank is sucked from the hood by a blower.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings.

As shown in FIG. 1 and FIG. 2, this garbage processing machine can be moved as a whole by means of casters 2 mounted on the bottom of the housing 1, and height adjustable screw legs provided in the vicinity of the casters 2. It can be fixed at 3.

A processing tank 4 is installed in the lower part of the housing 1. As shown in FIGS. 1 to 3, the processing tank 4 has a vertical cylindrical shape having a ceiling portion 4b and a bottom portion 4c in addition to the peripheral wall portion 4a, and a planar heater 5 is attached to the lower surface of the bottom portion 4c. The inside of the processing tank 4 is heated from the bottom 4c.

In the processing tank 4, on its center line,
The vertical axis of the stirring shaft 6 is supported by the upper and lower sides of the stirring shaft 6, and
It is rotated by a stirring motor 7 installed on the ceiling portion 4b of the. The stirring shaft 6 has three plate-shaped stirring blades 8A, 8A
B and 8C are fixed by an inverted L-shaped bracket 9, and these are rotated simultaneously by the rotation of the stirring shaft 6. The swirling positions of these three stirring blades 8A, B, and 8C are different, and the first stirring blade 8A swirls toward the center of the processing tank 4 near the bottom portion 4c of the processing tank 4, and the second stirring blade 8A. 8B
Swirls in the vicinity of the bottom 4c of the processing tank 4 and in the vicinity of the peripheral wall 4a in the processing tank 4, and the third stirring blade 8B swirls in the middle of the processing tank 4 in the vicinity of the peripheral wall 4a. .

As shown in FIG. 2, the peripheral wall portion 4a of the processing tank 4 is shown.
The discharge doors 10A and 10B, which are divided into upper and lower two stages, are hinged so as to rotate back and forth to open and close, and are locked by the respective lock levers 11A and 11B to discharge the processing tank 4. The exit can be airtightly closed by both parties.

A funnel-shaped hopper 12 is installed on the front side of the upper part of the housing 1. The upper opening of the hopper 12 can be airtightly opened and closed by a door 13 which is hinged so as to rotate up and down.

A hood 1 is provided between the hopper 12 and the processing tank 4.
4 is provided, the lower part of the hopper 12 projects into the hood 14, and the lower surface opening of the hopper 12 and the inlet 4d provided in a part of the ceiling portion 4b of the processing tank 4 are the hood 14
Through.

A blower 15, a heat exchanger 16 and a radiator 17 are installed in the middle and rear side of the upper part of the housing 1. FIG. 4 shows an overall system diagram, and the drain separator 18 shown in this diagram is also installed at an appropriate position in the housing 1.

The blower 15 has its suction inlet connected to the suction pipe 1
The steam generated in the processing tank 4 is sucked through the hood 14 at a high static pressure by being connected to a plurality of places on the upper portion of the hood 14 via 9.

The heat exchanger 16 has a double tube structure (centrifugal type),
In this example, four sets of double pipe elements 16A to 16D each having a double pipe structure are combined in an arrangement relationship of upper and lower two stages and front and rear two rows. As shown in FIG. 4, the inner pipes 20a of these four sets of double pipe elements 16A to 16D are pipe-connected in a meandering order, and one end of the inner pipe 20a of the first double pipe element 16A among them is connected. While being pipe-connected to the blower outlet of the blower 15, one end of the inner pipe 20a of the fourth double pipe element 16D is pipe-connected to the intake port of the radiator 17.

Also, four sets of double tube elements 16A-1
The outer pipe 20b of 6D is connected to the one end side and the other end side of the outer pipe 20b so that they are alternately arranged, and one end of the outer pipe 20b of the first double pipe element 16A is connected to the outer pipe 20b.
The base end of the hot air return pipe 21 is connected. The hot air return pipe 21 extends to the processing tank 4, and its tip 21a opens into the processing tank 4 at the upper end portion of the peripheral wall portion 4a of the processing tank 4 or the peripheral end portion of the ceiling portion 4b. On the other hand, one end of the outer pipe 20a of the fourth double pipe element 16D is
It is connected to the exhaust port of the radiator 17 by piping.

Blower 15, heat exchanger 16, radiator 1
Drain (water) generated by the liquefaction of vapor in each of 7 is collected in the drain separator 18 through the drain pipe. The drain separator 18 overflows the collected drain when it reaches a certain amount, and naturally discharges the drain into the atmosphere through the deodorizing portion 18a by the deodorizing material.

Next, the operation of this garbage processing machine will be described. In this food waste processing machine, the food waste is thrown into the processing tank 4 through the hopper 12, the door 13 of the hopper 12 is closed, and the heater 5 heats the food waste while stirring them with the stirring blades 8A, 8B, 8C, and disappears. It is treated with bacteria, and during that time, the steam is exhausted by the blower 15 to be liquefied, and the hot air generated at that time is returned into the treatment tank 4.

The stirring in the processing tank 4 is performed by three stirring blades 8
Since the turning positions of A, 8B, and 8C are arranged as described above, the turning is performed uniformly. Further, the heating by the heater 5 is suitable for the activity of sterilization, for example, 60 ° C to 70 ° C.
The heating is performed from the bottom of the processing tank 4 to a temperature of ° C, such as floor heating, with high thermal efficiency.

The steam generated in the processing tank 4 is shown in FIG.
In, the air is sucked and discharged from the hood 14 by the blower 15, and flows through the blower 15 through the inner pipes 20a of the four sets of the double pipe elements 16A to 16D of the heat exchanger 16 in a meandering sequence, where heat is sequentially exchanged. Liquefy. Heat exchanger 1
The steam that has passed through 6 enters the radiator 17 and is liquefied by being cooled.

The hot air generated in the radiator 17 is the outer pipe 20a of the fourth double pipe element 16D of the heat exchanger 16.
And, in the heat exchanger 16, as opposed to the steam flow,
The outer pipe 20a of the fourth double pipe element 16D sequentially flows to the outer pipe 20a of the first double pipe element 16A, and is returned to the upper part of the peripheral wall in the processing tank 4 through the hot air return pipe 21.

Therefore, since the whole is a closed circulation system that does not open to the outside, odor is not discharged to the outside, and heat is also circulated and used, so that the thermal efficiency is very good.

Blower 15, heat exchanger 16, radiator 1
The drain (water) generated by the liquefaction of the vapor in each of 7 is collected in the drain separator 18 as described above. Since the drain collected here may contain a small amount of odor, the drain is deodorized only here and is discharged into the atmosphere. Therefore, the deodorizing portion 18a may be very simple.

The discharge doors 10A and 10B of the processing tank 4 are two upper and lower.
Since it is divided into stages, it is possible to discharge according to the processing amount.

[0030]

As described above, according to the present invention, the steam generated in the processing tank is sucked by the blower, liquefied through the inner tube of the heat exchanger having the double tube structure, and further sent to the radiator. Along with liquefying, the hot air generated in the radiator and heat exchanger is returned to the processing tank in a flow opposite to that of steam, so the whole system becomes a closed circulation system that does not open to the outside,
Since the odor is not emitted to the outside and the heat is circulated, the thermal efficiency is very good.

The invention according to claim 2 is provided with a heat exchanger and a drain separator for collecting the water separated by the radiator,
Since this drain separator is provided with a deodorizing section for deodorizing and exhausting, even if the collected water contains a slight odor, it can be deodorized, and only here it is necessary to deodorize in the deodorizing section. The deodorizing part may be a very simple one.

According to the third aspect of the present invention, a plurality of sets of double pipe elements each having an internal and external double pipe structure are sequentially connected to form a heat exchanger, so that the heat exchange efficiency is high.

According to a fourth aspect of the present invention, the treatment tank is a vertical cylinder, and a stirring blade that is swirled around a stirring shaft that is a vertical axis is incorporated in the treatment tank to treat hot air from the hot air return pipe. Since it is introduced from the outer peripheral portion of the tank, drying in the processing tank can be efficiently performed.

According to the fifth aspect of the present invention, the hood is provided between the hopper and the processing tank, and the steam from the processing tank is sucked from the hood by the blower. Therefore, the steam can be discharged together with the hopper.

[Brief description of drawings]

FIG. 1 is a simplified vertical side view of an embodiment of a garbage disposal according to the present invention.

FIG. 2 is a simplified front view of the same.

FIG. 3 is likewise a simplified plan view.

FIG. 4 is an overall system diagram.

[Explanation of symbols]

1 housing 2 casters 3 screw legs 4 processing tanks 4a peripheral wall 4b ceiling 4c bottom 4d slot 5 heater 6 stirring shaft 7 Stirring motor 8A / 8B / 8C Stirring blade 9 bracket 10A / 10B discharge door 11A ・ 11B Lock lever 12 hoppers 13 doors 14 Hood 15 blower 16 heat exchanger 16A-16D Double tube element 17 radiator 18 drain separator 19 Suction piping 20a inner tube 20b outer tube 21 Hot air return piping

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 3L113 AA07 AB06 AC08 AC58 AC67                       AC87 BA01 DA01                 4D004 AA03 CA12 CA15 CA19 CA42                       CA48 CB04 CB27 CB31 CB32

Claims (5)

[Claims] 1. A hopper with a door for feeding food waste, a treatment tank for heating the food waste fed from the hopper by a heater at the bottom while stirring the food waste, and steam generated in the treatment tank outside the treatment tank. And the heat of the double-pipe structure that returns the hot air generated in the outer tube to the treatment tank through the hot air return piping while liquefying the steam sucked by the blower through the inner tube. Garbage comprising a heat exchanger and a radiator for further liquefying the steam that has passed through the inner tube of the heat exchanger and for returning the hot air generated at that time to the outer tube of the heat exchanger Processing machine. 2. A heat exchanger and a drain separator for collecting water separated by a radiator, and the drain separator is provided with a deodorizing section for deodorizing and exhausting. Garbage processing machine. 3. The heat exchanger according to claim 1, wherein a plurality of sets of double pipe elements each having an inner and outer double pipe structure are sequentially connected to each other in the heat exchanger. Garbage disposal machine. 4. The processing tank has a vertical cylindrical shape, and a stirring blade that is swirled around a stirring shaft that is a vertical axis is built in the processing tank,
4. The garbage treatment machine according to claim 1, 2 or 3, wherein hot air from the hot air return pipe is introduced from the outer peripheral portion of the treatment tank. 5. The food waste according to claim 1, 2, 3 or 4, wherein a hood is provided between the hopper and the processing tank, and vapor from the processing tank is sucked from the hood by a blower. Processing machine.