JP2002011365A - Drying device for disposing of general waste - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drying device for disposing of general waste which is capable of efficiently drying the waste by improving the thermal efficiency of a hot blast feeding machine. SOLUTION: A hammering shredding machine 15 is covered with a heat retaining material 50 and a heat insulating material 60 is provided at coupling parts 52, 54 between the hammering shredding machine 15 and other equipment to be connected to the former and support parts 56, 58 for a floor part. Thus, it is possible to effectively prevent the internal temperature of the hammering shredding machine 15 from dropping due to heat transfer and radiation and thereby, make effective use of the heat, so that the effective drying of the waste is ensured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drying apparatus for treating general waste such as garbage placed in a storage bag such as a vinyl bag from home.

[0002]

2. Description of the Related Art In recent years, there has been an increasing demand for resource recycling and improvement of living environment, and it has been desired to recycle even general waste such as garbage discharged from homes without incineration as much as possible. ing.

[0003] As such recycling, for example, general waste including garbage discharged from each household is collected at each collection station, and then garbage and other waste are separated at a treatment plant. Composting has been conducted since.

FIG. 4 is an overall configuration diagram of a processing facility 10 generally used when composting general waste including garbage and the like. When the flow of general waste is shown from the upstream side, first, general waste such as garbage stored in a vinyl bag or the like collected from each collection station by a collection vehicle is collected in its storage tank 11.

The collected waste is transferred to a hopper 12a of a charging machine 12, and is supplied to a hopper 13a of a crusher 13 that breaks bags of vinyl or the like by a lift 12b that raises and reverses the hopper 12a. The waste supplied to the hopper 13a is broken into bags such as vinyl by the crusher main body 13b to be separated into garbage and bag pieces.
It is sent to 4 in fixed quantities. At this time, it is desirable that the bag pieces be largely broken in order to facilitate separation of the garbage and the bag pieces that have been dried by the rotary sieve 20 described later.

The waste (garbage and bag pieces) sent to the crusher / dryer 14 is radially and multi-staged on a rotary shaft 15b which is vertically installed in a crushing chamber 15a of a percussion crusher 15 and driven to rotate. Are repeatedly impacted and crushed using the centrifugal force of the rotating shaft 15b. At the same time, hot air 100 is supplied into the crushing chamber 15a from a hot air supply device such as a burner 16 disposed below the crushing chamber 15a to dry garbage and bag pieces. The air (hot air 100) together with the garbage, bag pieces, and the like thus crushed and dried is sucked by the suction blower 18 and transferred to the cyclone 17 via the transport path connected to the upper part of the crushing chamber 15a.

Air flows into the cyclone 17 along with the crushed and dried garbage and bag pieces in a linear flow.
Garbage and bag pieces having a relatively large centrifugal force due to an overflow inside the main body descend on the inner wall of the cyclone 17 and are discharged from the lower discharge port and discharged to the hopper 20c of the rotary sieve 20. On the other hand, fine dust or the like having a small centrifugal force is sucked by the suction blower 18 together with the air, is adsorbed and separated by the harmful gas adsorption / separator 19, and is exhausted.

The crushed and dried garbage, bag pieces, and the like discharged to the hopper 20c extend in a substantially horizontal direction with a slight rotationally driven inclination in which a mesh of meshes is formed in a cylindrical shape. The relatively small and crushed garbage and the like put into the rotary cylinder 20a fall through the sieves of the rotary cylinder 20a, and fall into the hopper 20 disposed below the rotary cylinder 20a.
d and is conveyed to the fermenter 21 by the belt conveyor 21a or the like. On the other hand, relatively large bag pieces of vinyl or the like are guided to the slope 20e from the downstream end thereof without passing through the mesh of the rotary sieve 20a, and are collected in the dust collection tank 22.

As described above, the drying of garbage and the like in the crusher / dryer 14 is generally performed instantaneously with hot air from a hot air supply device such as the burner 16.

[0010]

However, hot air 1
When 00 is sent to the inside of the conventional dryer 14, since low-temperature outside air is taken in, the energy consumption of the hot-air supply device increases and it is not preferable from the viewpoint of thermal efficiency. In addition, the temperature inside the dryer is reduced due to radiant heat from the inside of the dryer to the outside due to drying, and heat transfer from a connection portion with another device connected to the dryer and a support portion with the floor portion.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a drying apparatus for general waste treatment capable of efficiently drying waste by improving thermal efficiency.

[0012]

According to a first aspect of the present invention, there is provided a drying apparatus for municipal waste treatment, which crushes and dries municipal waste. In order to improve the thermal efficiency in the above, the impact crushing section is covered with a heat insulating material, and the connection with other members and the support to the floor are performed through a heat insulating material.

[0013] Thus, the radiation of heat to the outside of the impact crushing section can be prevented, and the heat transfer from the coupling section and the support section can be prevented. Is performed more efficiently.

In the invention according to claim 2, the impact crushing section is covered with a heat insulating material by attaching a heat insulating material to an outer wall of the impact crushing section. This makes it possible to prevent the temperature inside the impact crushing unit from lowering by a simple method.

According to a third aspect of the present invention, in the impact crushing section, an additional wall section is provided around the outer side of the impact crushing section to form a space, into which hot air separated by the cyclone is introduced. Have been.

Thus, when the separated hot air is introduced into the space, the blow crushing section is shut off from the outside air to keep the temperature, and the temperature is raised by the blow crushing section and is recirculated to the hot air supply machine. Since the hot air supply device does not need to take in only low-temperature outside air, the energy consumption thereof can be reduced.

[0017]

Next, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an overall configuration diagram of a drying apparatus for general waste including garbage. Note that the same components as those in the related art are denoted by the same reference numerals, and detailed description thereof will be omitted.

A feature of the present embodiment is that a mechanism for improving the thermal efficiency of the heat source (burner 16) is provided around the impact crusher 15, as shown in FIG. First, an additional wall portion 30 is provided around and around the outer wall 15d of the impact crusher 15, whereby a space 32 is formed between the outer wall 15d and the additional wall portion 30. In the drawing, the outer wall 15d and the additional wall 30 are
It is shown without thickness for simplification of the drawing.

The lower end of the additional wall portion 30 is bent inward at a predetermined length and extends to the outer wall 15d of the impact crusher 15 (reference numeral 30a). On the other hand, the upper configuration of the additional wall portion 30 also covers the ceiling portion of the impact crusher 15 at a distance,
Further, a pipe 34 is formed at the upper portion so as to extend rightward in the drawing, and further extends the space 32 outward. A vertical pipe extending in the vertical direction further outside (right in the drawing) of the pipe 34. 36 are formed. The upper end of the vertical conduit 36 is open to the atmosphere. The lower end is connected to the hot blast stove 16 a of the burner 16.

By forming the conduits 34 and 36 in this manner, the hot air supplied from the burner 16 to the impact crushing chamber 15 is further circulated after being discharged from the impact crushing chamber 15. Things.

A heat insulating material 50 such as a heater tape is adhered on the outer wall of the additional wall 30 and the conduits 34 and 36 forming the space 32. Further, in order to prevent a temperature decrease due to heat transfer in the impact crusher 15, the impact crusher 1
5 and a connection portion between the impact crusher 15 and other devices, that is, a connection portion 52 between the hopper 13a, a connection portion 54 to the discharge path 40 above the impact crusher 15 and a floor. The support parts 56 and 58 are provided with a heat insulating material 60 so as to be interposed between the connection parts.

The heat insulating material 50 is adhered as described above, and the heat insulating material 6 is attached.
By providing 0, the temperature in the impact crusher 15 is effectively suppressed from being reduced by heat transfer and radiation.
Thereby, further effective use of heat is achieved, and the waste can be effectively dried.

Next, the circulation operation of the hot air will be described. The hot air sent from the burner 16 and supplied to the crushing chamber 15 a is sent from the upper central outlet of the percussion crusher 15 to the cyclone 17 via the pipe 40 while being sucked by the suction blower 18. Further, from the cyclone 17, it is guided to the harmful gas suction / separator 19 side through a filter 23 for removing fine dust and the like. In the conventional apparatus, the discharged hot air 102 is discharged to the outside, but in the present embodiment, the discharged reused hot air 102 is further sent to the space 32.

The recycled hot air 10 introduced into this space 32
In No. 2, the impact crusher 15 is shut off from the outside air to keep the temperature, and the temperature is raised again. A part (reference numeral 106) of the recycled hot air 102 whose temperature has been increased is discharged outward from an opening provided for ventilation above the vertical pipe 36, and the other part (reference numeral 104) Hot air stove 16 of burner 16 again
It is returned to a.

The hot air used once is introduced into a space provided around the impact crusher 15 and then returned to the hot blast stove 16a of the burner 16, so that the burner 16
The heating operation of the air in is more efficient. That is, the required high-temperature air can be supplied with less energy and less time.

It should be noted that the present invention is not limited to the above embodiment, and various changes can be made within the gist of the present invention.

For example, FIGS. 2 and 3 show another embodiment. FIG. 2 is a longitudinal sectional view of the impact crusher 15, and FIG.
FIG. 3 is a sectional view taken along line II of FIG. 2. As shown, the impact crusher 15 applied to this embodiment has an upper portion narrowed down into a substantially conical shape and a lower portion formed into a cylindrical shape, and a heat insulating material is provided on the outer surface of the cylindrical portion 15e. 50 is directly attached.

In this embodiment, there is no function such as the reheating of hot air utilizing the radiant heat from the impact crusher 15 as in the above-described embodiment, but the inside of the impact crusher 15 is simplified. Can be prevented from lowering in temperature. In addition, since the heat insulating material 50 is simply adhered directly, the heat insulating material 50 can be directly applied to an existing impact crusher, and there is no need to secure an extra space. Further, improvement in the heat retaining performance of the impact crusher 15 can be expected.

[0029]

As described above, according to the drying apparatus for treating general waste of the present invention, the impact crusher is covered with the heat insulating material. Thereby, heat radiation from the inside of the impact crusher to the outside can be prevented. In addition, by providing a heat insulating material at each joint between the impact crusher and other devices connected to the impact crusher and a support portion to the floor, a reduction in temperature due to heat transfer from inside the impact crusher is suppressed. Is achieved.

Therefore, since the temperature inside the hot air supply device is maintained at a high temperature, the energy consumption of the hot air supply device is reduced, and drying of general waste including garbage introduced into the blow crusher is performed. Can be performed efficiently.

[0031]

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of a crushing and drying apparatus for treating general waste including garbage according to the present invention.

FIG. 2 is a longitudinal sectional view of the impact crusher.

FIG. 3 is a sectional view of the impact crusher.

FIG. 4 is an overall configuration diagram illustrating a general waste treatment facility.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Processing facility 14 Crush dryer 15 Blow crusher 15a Crush chamber 15b Rotation axis 15c Blow chain 15d Outer wall 15e Cylindrical part 30 Additional wall part 32 Space 50 Heat insulating material 60 Insulation material 16 Burner 17 Cyclone 18 Suction blower 100 Hot air 102 sucked Reused hot air 104 Hot air returned 106 Hot air discharged

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B09B 3/00 ZAB F26B 3/06 17/20 A 5/00 B09B 3/00 ZAB F26B 3/06 303M 17 / 20 5/00 PF term (reference) 3L113 AA07 AC04 AC59 AC67 BA01 CB03 DA03 4D004 AA03 AA46 AC05 CA04 CA12 CA15 CA42 CA47 CB05 CB11 CB31 CB34 CB36 CB44 CB50 4D053 AA03 AB01 BA01 BB02 BC01 BB13 BB13 A10 EB13 BB13 A17 BB13 A10 BB13 A10 ED01 ED14 ED24 ED32 4D067 DD03 DD09 DD11 DD13 DD14 EE07 EE22 EE27 GA18

Claims (3)

[Claims] A waste collection unit into which municipal waste is charged; a blow crushing unit connected to the waste collection unit and crushing and drying the general waste sent from the waste collection unit; A hot air supply unit for supplying high-temperature hot air to the blow crushing unit; a general blower crushed and dried by the blow crushing unit; and a suction blower for sucking the hot air; and a suction blower provided between the blow crushing unit and the suction blower. In a drying device for general waste treatment comprising a cyclone for separating general waste and hot air sucked by the suction blower, the impact crushing unit is covered with a heat insulating material, and the impact crushing unit is provided with a heat insulating material. A drying device for treating general waste, wherein the drying device is connected to other members and supported on a floor. 2. The general waste disposal method according to claim 1, wherein the impact crushing section is covered with a heat insulating material by attaching a heat insulating material to an outer wall of the impact crushing section. Drying equipment. 3. A waste collection unit into which general waste is charged, a blow crushing unit connected to the waste collection unit and crushing and drying the general waste sent from the waste collection unit; A hot air supply unit for supplying high-temperature hot air to the blow crushing unit; a general blower crushed and dried by the blow crushing unit; and a suction blower for sucking the hot air; and a suction blower provided between the blow crushing unit and the suction blower. In a general waste treatment drying apparatus including a cyclone for separating general waste and hot air sucked by the suction blower, the impact crushing unit is provided with an additional wall around the outer periphery of the crushing unit. 3. The drying device for treating general waste according to claim 1, wherein a space is formed, and hot air separated by the cyclone is introduced into the space. 4.