JP3151704B2 - Apparatus and method for drying garbage - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to garbage which is capable of efficiently drying a processed material such as garbage in a short time and greatly reducing odor generated from the garbage during the drying process. And a drying method.

[0002]

2. Description of the Related Art Conventionally, in this type of garbage drying means, for example, only processed food such as garbage stored in a drying furnace is heated and dried by a burner or a heater. Was.

[0003]

Therefore, in the above-mentioned drying means, it takes a considerable time until the processed material such as garbage is dried, and during this time, a strong odor is generated from the processed material such as garbage. And the working environment was significantly impaired.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned difficulties and the like.
The drying apparatus described above has a heater 4 for heating a processed material such as garbage stored therein, and also forms a drying furnace 1 having a stirring blade 2 at a lower portion. A fan 10 connected to the other end for exhausting gas and steam generated by heating the processed material in the drying furnace 1 into a circulation exhaust path.
A heat exchanger 12 for cooling and liquefying the steam from the drying furnace 1 is provided in the circulation exhaust path, and a heater 14 for heating and burning the gas from the drying furnace 1 is provided in the circulation exhaust path. 1
Is provided with a cover plate 7 and a dome plate 6 is provided below the cover plate 7.
So that it is arranged below the peripheral edge of the dome plate 6,
A substantially gutter-shaped dew receiving portion 5 is provided around the inner peripheral wall portion of the drying furnace 1, and water droplets condensed on the lower surface of the lid plate 7 are collected in the dew receiving portion 5 along the upper surface of the dome plate 6, and are circulated to an exhaust passage. Means configured to be able to be discharged into the inside are adopted.

In the drying method according to a second aspect of the present invention, the processing object such as dust contained in the drying furnace 1 is heated by the heater 4 and the processing object is stirred by rotating the stirring blades 2. The gas and steam generated by heating the processing material in the exhaust gas 1 are exhausted into the circulation exhaust passage by the operation of the fan 10, and the steam from the drying furnace 1 is cooled and liquefied by the heat exchanger 12. 13, the gas from the drying furnace 1 is heated and burned by the heater 14 so as to return to the inside of the drying furnace 1, while water droplets condensed on the lower surface of the lid plate 7 of the drying furnace 1 The dome plate 6 is disposed below the dome plate 6 and is collected in a substantially trough-shaped dew receiving portion 5 which is provided around the inner peripheral wall portion of the drying furnace 1 and is disposed below the peripheral edge of the dome plate 6. A means for discharging into the road was adopted.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on illustrated examples. The drying device of the present invention is mainly for drying processed materials such as garbage, and specifically forms a drying furnace 1 for storing processed materials such as garbage. Further, a heater 4 for heating the accommodated processed material is provided, and a stirring blade 2 for stirring and crushing the accommodated processed material is provided at a lower portion. One end and the other end of the circulation exhaust path are connected to the drying furnace 1. Further, a fan 10 is disposed in the circulation exhaust path, so that gas and steam generated by heating the processing object in the drying furnace 1 are exhausted into the circulation exhaust path. Then, the heat exchanger 1
2 is arranged so that the steam from the drying furnace 1 can be cooled and liquefied. In addition, a heater 14 is disposed in the circulation exhaust path so that the gas containing the odor from the drying furnace 1 can be heated and burned before returning to the drying furnace 1.

Further, the drying apparatus of the present invention comprises:
A cover plate 7 is provided, and a dome plate 6 is formed below the cover plate 7 so that a center portion of the plane protrudes upward, and is arranged below a peripheral edge of the dome plate 6. A substantially gutter-shaped dew-receiving part 5 is provided around the inner peripheral wall of the drying furnace 1. That is, water droplets condensed on the lower surface of the lid plate 7 are collected along the upper surface of the dome plate 6 in the dew-condensation receiving portion 5 and can be discharged into the circulation exhaust passage.

The drying furnace 1 has, for example, a substantially cylindrical shape with a bottom. A lower part of the drying furnace 1 is provided with a stirring blade 2 rotatably, and a heater 4 for heating the processed material.

The stirring blade 2 is configured to be rotated by an appropriate driving means 3 such as a motor, for example.
The processing object is agitated to promote drying of the processing object stored in the drying furnace 1 and the processing object can be finely crushed. In addition, the stirring blade 2 is configured such that the processed material with the bottom is moved upward and the processed material with the top is moved downward, so that the stirring of the processed material is performed in a well-balanced manner. Is preferred.

The heater 4 may be any heater that uses a heater, a burner, or the like, and is configured to reliably and efficiently heat the processed material in the drying furnace 1.

The dew-condensation receiving part 5 is provided around the upper part of the inner peripheral wall of the drying furnace 1, and is formed so that the upper part is opened. In addition, it is preferable that the dew-condensation receiving portion 5 is appropriately inclined so that water droplets in the dew-condensation receiving portion 5 accumulate at predetermined positions and are smoothly discharged out of the drying furnace 1.

The dome plate 6 is formed, for example, in a spherical shape such that the center of the plane thereof protrudes upward, and water droplets condensed on the lower surface of the cover plate 7 smoothly move on the upper surface of the dome plate 6. Thus, it is configured to surely fall into the dew condensation receiving portion 5.

The fan 10 has, for example, a gas at one end of a circulation exhaust passage (a gas generated by heating a processing object in the drying furnace 1,
The steam is discharged outside the drying furnace 1).
The gas and steam generated in the drying furnace 1 are sucked.

In the drawing, reference numeral 11 denotes a strainer disposed in front of the fan 10 in the circulation exhaust path.

The heat exchanger 12 cools and liquefies the steam sent from the drying furnace 1 with cooling water or the like, and sends it to the drain tank 13, while the steam is sent from the drying furnace 1. The gas is configured to be supplied to the heater 14. The cooling water used in the heat exchanger 12 is
Cooling may be performed again by a cooling tower (or air cooling means as appropriate), or tap water or groundwater may be used as cooling water, and hot water obtained by heat exchange may be used for other purposes.

The drain tank 13 is configured to first separate the liquid oil supplied from the heat exchanger 12 and then drain the oil after passing through the activated carbon layer.

The heater 14 uses a heater, a burner, or the like, and burns the gas containing the odor sent through the heat exchanger 12 at a high temperature to greatly reduce the odor.
The high-temperature gas is returned to the drying furnace 1.

In FIG. 1, reference numeral 15 denotes a surrounding body which surrounds the drying furnace 1, the driving means 3, the circulation exhaust path, the fan 10, the heat exchanger 12, the drain tank 13, and the heater 14.

Incidentally, the specific configuration of the drying apparatus, the specific configuration, shape, dimensions, and material of the drying furnace 1, the specific configuration, shape, dimensions, and material of the stirring blade 2, the specific configuration of the driving means 3,
Arrangement position, specific configuration, shape, arrangement position of heater 4, specific configuration, shape, dimension, arrangement position of dew condensation receiving section 5, specific configuration, shape, dimension, material, mounting of dome plate 6 Means, specific configuration of cover plate 7, shape, dimensions, mounting means, specific configuration of fan 10, arrangement position, specific configuration of strainer 11,
The disposition position, the specific configuration of the heat exchanger 12, the disposition position, the specific configuration of the drainage tank 13, the disposition position, the specific configuration of the heater 14, the disposition position, the specific configuration of the surrounding body 15, etc. , Can be freely set as appropriate without being limited to those shown in the drawings.

In the drying method using the drying apparatus as described above, first, a predetermined amount of processed material such as dust is put into the drying furnace 1. Then, the processing object is heated by the heater 4, the driving means 3 is operated to rotate the stirring blade 2, and the processing object is stirred and crushed by the stirring blade 2. Then, the fan 10 is operated to exhaust the gas and steam generated in the drying furnace 1 by heating the processing object into the circulation exhaust path. Further, the steam from the drying furnace 1 is cooled and liquefied by the heat exchanger 12. This liquid is supplied to the drainage tank 13 to separate the liquid oil, and then is passed through the activated carbon layer to be drained. On the other hand, the gas containing the odor that has passed through the heat exchanger 12 is sent to the heater 14, heated and burned by the heater 14, and returned into the drying furnace 1. By repeating the above operation, the processed material in the drying furnace 1 is dried. In addition, water droplets condensing on the lower surface of the lid 7 of the drying furnace 1
Through the dome plate 6 disposed below, the dome plate 6 is gathered in a substantially gutter-shaped dew-receiving portion 5 disposed around the inner peripheral wall portion of the drying furnace 1 and disposed below the peripheral edge of the dome plate 6. Then, this is discharged into the circulation exhaust passage. In addition, the operation of the device is appropriately controlled by the control panel. By the way, a chemical solution may be injected for treating heavy metals or the like, and when there is a large amount of oil, the treatment may be performed using an oil adsorbent.

[0021]

Therefore, the drying apparatus according to the first aspect of the present invention has a drying furnace 1 having a heater 4 for heating a processed material such as garbage and a stirring blade 2 at a lower portion thereof. Furnace 1 is connected to one end and the other end of the circulation exhaust path, and provided with a fan 10 for exhausting gas and vapor generated by heating of the processing object in drying furnace 1 into the circulation exhaust path. A heat exchanger 12 for cooling and liquefying the steam is provided in the circulation exhaust path, and a heater 14 for heating and burning the gas from the drying furnace 1.
Is provided in the circulation exhaust path, and a cover plate 7 is provided in the drying furnace 1, and a dome plate 6 is disposed below the cover plate 7. Is formed around the inner peripheral wall portion of the drying furnace 1, and water droplets condensed on the lower surface of the lid plate 7 are collected in the dew receiver 5 along the upper surface of the dome plate 6,
Since this is configured to be discharged into the circulation exhaust path, the time required for the processed material such as garbage to dry can be shortened, the drying can be performed efficiently, and the odor generated from the processed material such as garbage can be significantly reduced. And a drying device that can be operated in a favorable environment. In addition, the configuration of the drying apparatus itself is simplified, the size and size of the drying apparatus can be easily reduced, failures are less likely, the durability is excellent, handling and maintenance are easy, and the drying apparatus can be provided at a relatively low cost.

Furthermore, the fan 10 can forcibly exhaust gas and steam generated by heating the processing object in the drying furnace 1 into the circulation exhaust path, and further, the drying furnace 1 from which the gas and steam have been exhausted. The high-temperature and dry gas heated and burned by the heater 14 can be sent through the circulation exhaust path, whereby the drying of the processed material in the drying furnace 1 can be promoted and the drying time can be greatly reduced. Become like

In particular, the drying furnace 1 is provided with a cover plate 7, a dome plate 6 is provided below the cover plate 7, and a substantially gutter-shaped dew-condensation receiver is provided below the peripheral edge of the dome plate 6. The part 5 is provided around the inner peripheral wall of the drying furnace 1 so that water droplets condensed on the lower surface of the cover plate 7 are collected in the condensation receiving part 5 along the upper surface of the dome plate 6 and can be discharged into the circulation exhaust passage. The cover plate 7
Water droplets condensed on the lower surface can be reliably prevented from falling into the processing object in the drying furnace 1, and the processing object can be dried more quickly.

Further, in the drying method according to the second aspect, the processed material such as dust housed in the drying furnace 1 is heated by the heater 4 and the processed material is stirred by rotating the stirring blades 2. The gas and steam generated by heating the processing material in the exhaust gas 1 are exhausted into the circulation exhaust passage by the operation of the fan 10, and the steam from the drying furnace 1 is cooled and liquefied by the heat exchanger 12. 13, the gas from the drying furnace 1 is heated and burned by the heater 14 so as to return to the inside of the drying furnace 1, while water droplets condensed on the lower surface of the lid plate 7 of the drying furnace 1 The dome plate 6 is disposed below the dome plate 6 and is collected in a substantially trough-shaped dew receiving portion 5 which is provided around the inner peripheral wall portion of the drying furnace 1 and is disposed below the peripheral edge of the dome plate 6. Since the waste is discharged into the road, it is possible to dry processed food such as garbage efficiently. Moreover, it is possible to shorten the time to dry, the odor generated from the processing of such raw garbage can be significantly reduced, a dry method will be able to work in a good environment.

Further, gas and steam generated by heating the processed material in the drying furnace 1 are forcibly exhausted into a circulation exhaust passage by a fan 10 and heated and burned by a heater 14 to dry at a high temperature. By feeding the gas into the drying furnace 1, the drying of the processed material in the drying furnace 1 is promoted and the drying time is significantly reduced.

In particular, water droplets condensed on the lower surface of the lid 7 of the drying oven 1 are provided around the inner peripheral wall portion of the drying oven 1 via the dome 6 disposed below the lid 7 and the dome 6 The collected water is collected in a substantially gutter-shaped dew-receiving portion 5 disposed below the peripheral edge, and is discharged into the circulation exhaust passage, so that water droplets condensed on the lower surface of the cover plate 7 fall into the processed material in the drying furnace 1. Instead, it can be discharged into the circulation exhaust path, and the processed product can be dried more quickly.

[Brief description of the drawings]

FIG. 1 is a schematic view illustrating a drying apparatus and a drying method for dust and the like according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Drying furnace 2 Stirrer blade 3 Drive means 4 Heater 5 Dew condensation receiving part 6 Dome plate 7 Cover plate 10 Fan 11 Strainer 12 Heat exchanger 13 Drain tank 14 Heater 15 Enclosure

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B09B 3/00 B09B 5/00 F26B 9/06 F26B 11/16 F26B 21/04

Claims (2)

(57) [Claims] 1. A drying furnace having a heater for heating a processed material such as dust stored therein and having a stirring blade at a lower portion is formed, and one end and the other end of a circulation exhaust path are connected to the drying furnace. A fan that exhausts gas and steam generated by heating the processed material in the drying furnace into the circulation exhaust path, and a heat exchanger that cools and liquefies the steam from the drying furnace in the circulation exhaust path, A heater for heating and burning the gas from the drying furnace is provided in the circulation exhaust path. The drying furnace is provided with a cover plate, and a dome plate is provided below the cover plate, and is provided below a peripheral edge of the dome plate. As described above, a substantially gutter-shaped dew-receiving portion is provided around the inner wall of the drying furnace, and water droplets condensed on the lower surface of the lid plate are collected in the dew-receiving portion along the upper surface of the dome plate and discharged into the circulation exhaust passage. A drying device for garbage and the like, characterized in that it is configured to be able to do so. 2. A processing object such as dust housed in a drying oven is heated by a heater, and a stirring blade is rotated to agitate the processing object, and gas and steam generated by heating the processing object in the drying furnace. Is exhausted into the circulation exhaust path by the operation of a fan, the steam from the drying furnace is cooled and liquefied by a heat exchanger, and this is sent to a drainage tank, and the gas from the drying furnace is heated and burned by a heater. to, and returned to the drying oven, single
On the other hand, water drops condensed on the lower surface of the lid plate of the drying oven
Around the inner wall of the drying oven through the dome plate
And a gutter-shaped dew tray located below the rim of the dome plate
A method for drying garbage and the like, characterized in that it is collected in a section and discharged into a circulation exhaust path .