JPH1054664A - Drying treatment device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drying treatment device, high in drying efficiency and sanitary without polluting environment. SOLUTION: A drying treatment device is constituted of a main body 2, hot air is supplied thereinto from the upper part of the same simultaneously with the supply of matters to be dried, an agitation shaft 10, penetrating through the main body 2 and rotatable into normal and reverse directions, agitation blades 12, fixed to the agitation shaft 10, a hot air jacket 16, provided around the surface of the main body 2 to supply hot air therethrough, and a deodorizing device having a spray nozzle 26, spraying deodorizing liquid into exhaust gas discharged out of the main body 2. The matters to be dried are crushed by a crusher before charging them into the main body 2 whereby a drying efficiency in the main body 2 is increased further more.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drying apparatus, and more particularly to a drying apparatus for drying garbage and the like. The present invention relates to a sanitary drying apparatus to be alleviated.

[0002]

2. Description of the Related Art Conventionally, various types of drying processing apparatuses have been used for processing garbage such as leftovers left after school lunch. As such a drying apparatus, for example, there is a drying apparatus described in Japanese Utility Model Application Laid-Open No. 55-108394, and in this drying apparatus, the heat transfer effect due to the adhesion of slag and the like to the inner surface of the main body of the dryer. To prevent food waste and increase the efficiency of drying garbage. Also, JP-A-7-303
No. 874 describes a drying method in which water in garbage is dehydrated and dried by a chemical reaction, which is quick, sanitary, low-cost, easy to handle, and can reuse garbage. I have.

[0003]

SUMMARY OF THE INVENTION The present invention has been made for the same purpose as the above-mentioned conventional drying apparatus and drying method, and has a high drying efficiency of garbage, so that the apparatus can be downsized. Another object of the present invention is to provide a sanitary drying apparatus which does not harm the environment.

[0004]

According to the first aspect of the present invention,
A drying processing apparatus, wherein a material to be dried is supplied, and a hot air is supplied from above, a main body that penetrates the main body and is rotatable in forward and reverse directions, and is fixed to the main shaft. It is characterized by comprising a stirring plate, a hot air jacket provided on the surface of the main body and supplied with hot air, and a deodorizing device having a spray nozzle for spraying a deodorizing liquid to exhaust gas discharged from the main body. And

According to a second aspect of the present invention, there is provided a drying treatment apparatus, wherein a crusher for crushing the object to be dried and the object to be dried crushed by the crusher are supplied.
A main body to which hot air is supplied from above, a stirring shaft that penetrates the main body and is rotatable in forward and reverse directions, a stirring plate fixed to the stirring shaft, and provided on the surface of the main body, hot air is supplied. And a hot air jacket.

According to the first aspect of the present invention, the object to be dried is scraped up in the main body by the stirring plate, and the area in which the object to be dried contacts hot air can be increased, so that the drying efficiency is increased. I do. Further, since the stirring shaft is rotatable in the forward and reverse directions, the area of the object to be dried in contact with the inner surface of the main body is increased, and the efficiency of heat transfer from the inner surface of the main body can be increased. Furthermore, since the hot air is supplied by providing the hot air jacket on the surface of the main body, the object to be dried can be heated also by heat conduction from the inner surface of the main body, and the drying efficiency of the object to be dried increases. Further, the deodorant liquid is sprayed on the exhaust gas, so that an unpleasant odor generated by drying the object to be dried can be reduced.

According to the second aspect of the present invention, since the crusher is provided, the size of the object to be dried can be reduced in advance before the object to be dried is supplied to the main body. I do. Further, the object to be dried is scraped up in the main body by the stirring plate, and the area where the object to be dried contacts hot air can be increased, so that the drying efficiency increases. Furthermore, since the stirring shaft is rotatable in the forward and reverse directions, the area in which the object to be dried contacts the inner surface of the main body is increased,
The efficiency of heat transfer from the inner surface of the main body can be increased. Further, since the hot air is supplied by providing the hot air jacket on the surface of the main body, the object to be dried can be heated by heat conduction from the inner surface of the main body, and the drying efficiency of the object to be dried is increased.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the case where the drying apparatus according to the present invention is used for drying garbage will be described with reference to the drawings.

As shown in FIGS. 1, 2 and 7, a drying apparatus 1 according to the present invention comprises a main body 2, a hot air supply 3,
It comprises a deodorizing device 4, a crushing device 5, and the like. As shown in FIG. 1, the main body 2 is mounted on a gantry 21 movable by casters 20. The main body 2 is provided with an input port 6 for inputting garbage at an upper portion thereof, and an outlet 8 for discharging dried garbage at a lower portion on the right side as shown in FIG. Can be

As shown in FIG. 2, a stirring tank 9 is formed inside the main body 2, a lower portion of the stirring tank 9 is formed by an arc-shaped bottom plate 9 a, and the stirring tank 9 is provided above the stirring tank 9. The inner surface is located.

As shown in FIGS. 2 and 3, a stirring shaft 10 penetrates the stirring tank 9 in a horizontal direction, and a connecting rod 11 extends radially from the stirring shaft 10. A stirring plate 12 is attached. The reason why the stirring plate 12 is attached is to increase the area where the garbage comes into contact with the hot air, and the stirring plate 12 scrapes up the slime-like garbage.

As shown in FIG. 4, the stirring plate 12 is attached to the connecting rod 11 such that the surface of the stirring plate 12 forms an angle of 45 degrees with the axis of the stirring shaft 10. Thereby, the stirring efficiency is increased, and the garbage can be sent out of the tank from the outlet 8 after the drying is completed.

As will be described later, raw garbage is put into the stirring tank 9 and slaked lime is mixed with the raw garbage. As a result, the raw garbage adheres to the stirring plate 12 and tends to be clumped. The adhesion of the garbage to the stirring plate 12 reduces the drying efficiency of the garbage, so that the shape of the stirring plate 12 is preferably set to a minimum size as long as the scraping efficiency and the discharging function are not impaired.

The garbage in the stirring tank 9 is stirred by a stirring shaft 10.
If the rotation direction is constant, the position is deviated, and the area in contact with the inner surface of the stirring tank 9 is reduced. Therefore, the rotation direction of the stirring shaft 10 is variable in the forward and reverse directions. Thereby, the area where the garbage contacts the inner surface of the stirring tank 9 increases, and the heat transfer efficiency from the bottom plate 9a of the stirring tank 9 can be increased.

As shown in FIG. 2, the ceiling 2a of the main body 2 has a hot air inlet 13a for a hot air tube 13 and an outlet 14a to an exhaust duct 14. Further, a thermostat 15 for stopping the operation of the drying treatment apparatus 1 in the event of a fire and issuing a fire alarm is arranged near the attachment portion of the exhaust duct 14. A thermostat 48 is also provided on a vertical surface near the stirring tank 9 of the main body 2 to monitor an abnormal rise in the temperature of garbage.

As shown in FIG. 2, a hot air jacket 16 is located below the main body 2, and hot air from a hot air supply device 3 described later is introduced. The garbage in the stirring tank 9 changes from a mud-like state to a powdery state. When the garbage form is a mud-like state, the heat transfer area is small, and the drying time with hot air alone is long. Therefore, a hot air jacket 16 is provided. When the garbage is heated through the metal bottom plate 9a, the thermal efficiency is high, and the garbage is collected below the stirring tank 9, that is, on the bottom plate 9a.
The lower part of the stirring tank 9 is heated by hot air. A thermostat 17 is also mounted near the hot air inlet 16a of the hot air jacket 16 to monitor abnormal temperature of the hot air.

Next, the hot air supply device 3 will be described with reference to FIG. The hot air supply device 3 includes a burner 1
8, an air supply fan 19, hot air tubes 13, 22 and the like. As the hot air supply device 3, a kerosene burner that is low in unit price per calorific value of kerosene fuel and easy to handle and obtain is used. When the amount of garbage to be treated is small, an electric heater can be used.

An air supply fan 19 is provided near the burner 18 in the hot air tube 22 from the burner 18 to the hot air jacket 16.
From the air supply. The purpose of this is to prevent the air in the stirring tank 9 from becoming saturated with water vapor due to evaporation of water, to improve the efficiency of heat transfer between hot air and garbage, to prevent fire, and to improve the durability of hot air tubes. It is for the improvement and the cost reduction of the heat insulating material. Although the combustion temperature of kerosene rises to about 1400 ° C., air from the air supply fan 19 is supplied to the combustion air, and the temperature of the hot air at the inlet 16 a of the hot air jacket 16 is reduced to about 400 ° C.

Hot air is introduced into the hot air jacket inlet 16a as shown in FIG. 3 and then discharged from the outlet 16b, as shown in FIG. Introduced within. After being subjected to drying of the garbage, the temperature of the hot air drops to about 140 ° C. and is discharged from the exhaust duct 14.

Next, the deodorizing device 4 will be described. Since the odor is generated when the garbage is dried, a deodorizing device 4 is provided for spraying a deodorizing liquid on the exhaust gas as a countermeasure against this.

As shown in FIG. 1, the deodorizing device 4 includes a deodorizing liquid tank 23, a pump 37, a deodorizing liquid pipe 24, a deodorizing device mounting portion 25, and the like. The deodorant liquid tank 23 is fixed on the pedestal 21 and stores deodorant liquid such as a dissolved odor liquid, which decomposes odors in the air by vaporization. Then, the deodorant liquid rises inside the deodorant liquid pipe 24 by the pump 37,
As shown in FIG. 5, the fuel is sprayed from a spray nozzle 26 arranged in a deodorizing device mounting portion 25 mounted on the tip of the exhaust duct 14.

The use limit temperature of the deodorant is about 100 ° C., and the exhaust gas temperature in the exhaust duct 14 is about 140 ° C.
Therefore, it is necessary to lower the exhaust gas temperature. Therefore, the deodorant liquid whose concentration has been reduced with water is sprayed from the spray nozzle 26, and a cooling effect is obtained by latent heat of evaporation when the water is vaporized, thereby lowering the exhaust gas temperature.

As shown in FIG. 5, a plurality of spray nozzles 26 are arranged in a space surrounded by a shielding plate 27 in the deodorizing device mounting section 25. These spray nozzles 26
The deodorant is sprayed from each spray nozzle 26 by a support member 46 fixed to the exhaust duct 14 by a fixing bolt 47.

Next, the crusher 5 will be described. FIG.
Shows a state in which the crushing device 5 is attached to the drying treatment device 1. The crushing device 5 includes a hopper 29, a slit 42, a motor 51, and the like, as will be described in detail later. The crushed material discharged from the slit 42 is supplied to the main body 2 by a screw conveyor 50 driven by a motor 49. It is supplied to the stirring tank 9 from the ceiling.

As shown in FIG. 7, the crushing apparatus 5 includes a hopper 29 into which garbage is charged, provided above the case 30, and a rotary blade 31 for crushing the garbage is disposed in the case 30. Is done. The rotary blade 31 has a V-pulley 33 attached to an output shaft of a motor 51, a V-pulley 36 attached to a lower end of an attachment shaft 35 supported by a bearing 39, and a tension between the V-pulleys 33, 36. Established V
It is rotated by the belt 38.

As shown in FIG.
The rotary blade 31 is fixed on a at the right and left sides of the base 40 fixed to the upper end of the mounting shaft 35 via mounting members 41. Therefore, the rotary blade 31 rotates on the bottom surface 30a with the rotation of the mounting shaft 35. The rotation speed of the mounting shaft 35 is adjusted to about 830 rpm.

A slit 42 and a fixed blade 43 are mounted on the vertical surface 30b of the case 30. FIG. 9 is a detailed view of the vicinity of the slit 42 as viewed from above. On the right side of the slit 42, a fixed blade 43 is mounted.
The garbage is crushed by the distal end 43a of the rotary blade 3 and the distal end 31a of the rotary blade 31, and the crushed garbage is
Is discharged to the outside. Case 3 on the left side of slit 42
A part of the end of the “0” is cut out so that the crushed garbage can be easily discharged from the slit 42 as an escape portion 44.

FIG. 10 shows a state where the feed plate 45 is attached to the base 40. This feeding plate 45
Means that the garbage introduced from above is
a, the feed plate mounting portion 46 formed in a concave shape is attached to the base 40
And is erected on a side surface 47a of a mounting plate 47 erected on the mounting portion 46. The surface of the feeding plate 45 is
It is adjusted so as to make an angle of approximately 45 degrees with the horizontal plane. The crushing device 5 does not need to be attached when the garbage is relatively small in size and does not need to be crushed before being supplied to the main body 2.

Next, the operation of the drying apparatus 1 according to the present invention having the above configuration will be described. First, the garbage is put into the crushing device 5, where it is crushed, and relatively large garbage is cut between the tip 31a of the rotary blade 31 and the tip 43a of the fixed blade 43, and becomes smaller and slit. It is discharged from 42.

The garbage discharged from the slit 42 is supplied to the stirring tank 9 in the main body 2 from the input port 6. At this time, about 10% to 20% by weight of slaked lime is simultaneously added to the added garbage. The slaked lime is added because the treated garbage becomes alkaline and hardly rot, and the garbage becomes mixed with the slaked lime, and the crushing proceeds at the time of stirring. In addition, the drying efficiency is increased by the progress of the crushing, the treated garbage is not scattered around because it becomes a sandy lump, and it is easy to handle because it does not generate heat of reaction as compared to quick lime. , Because the price is cheap.

As described above, the temperature of the hot air introduced into the stirring tank 9 is adjusted to about 400 ° C., and the stirring shaft 10
Rotate at a speed of rpm. The stirring shaft 10 is rotated forward and backward as described above, and the interval between the forward and reverse rotation is about 30 seconds. The processing time is about 2 hours for 50 kg of garbage, and the dried matter having a water content of 80% by weight before drying is 20 to
It is dried to about 30% by weight.

The dried garbage is discharged from the discharge port 8 and the hot air is discharged outside the system through the exhaust duct 14. The exhaust gas whose temperature has dropped to about 140 ° C is
The deodorizing liquid sprayed from the spray nozzle 26 cools down to about 100 ° C. and deodorizes.

[0033]

According to the first aspect of the present invention, the agitation plate attached to the agitation shaft, the agitation shaft rotatable in the forward and reverse directions, and the hot air jacket attached to the main body surface provide high drying efficiency and miniaturization. It is possible to provide a hygienic drying apparatus that does not harm the environment because it is possible to alleviate the unpleasant odor generated by drying the material to be dried by the deodorizing device.

According to the second aspect of the present invention, the crusher, the stirring plate attached to the stirring shaft, the stirring shaft rotatable in the forward and reverse directions, and the hot air jacket attached to the main body surface are used.
It is possible to provide a drying processing device which has high drying efficiency and can be downsized.

[Brief description of the drawings]

FIG. 1 is a view showing an embodiment of a drying apparatus according to the present invention, wherein (a) is a front view and (b) is a left side view.

FIG. 2 is a cross-sectional view of the drying apparatus of FIG.

FIG. 3 is a sectional view taken along line II of FIG. 2;

FIG. 4 is a detailed view showing the vicinity of a stir plate attaching portion in FIG. 3;

FIG. 5 is a cross-sectional view showing a deodorizing device mounting portion provided in the drying apparatus of FIG. 1;

FIG. 6 is a perspective view showing a state in which a crusher is provided in the drying treatment apparatus according to the present invention.

7 is a front view showing a driving unit of the crusher of FIG.

FIG. 8 is a perspective view showing a rotary blade mounting portion of the crusher of FIG. 7;

FIG. 9 is a detailed view showing a cut portion of the rotary blade attachment portion of FIG.

FIG. 10 is a perspective view showing a state in which a feed plate provided in the crusher of FIG. 7 is attached to a base of a rotary blade attachment portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Dry-processing apparatus 2 Main body 3 Hot-air supply apparatus 4 Deodorizing apparatus 5 Crushing apparatus 6 Input port 8 Outlet 9 Stirring tank 10 Stirring shaft 12 Stirring plate 13, 22 Hot-air pipe 14 Exhaust duct 16 Hot-air jacket 18 Burner 19 Air-supply fan 23 Deodorizing liquid tank 24 Deodorizing liquid pipe 25 Deodorizing device mounting part 26 Spray nozzle 31 Rotary blade 37 Pump 38 V belt 42 Slit 43 Fixed blade 45 Feed plate 49, 51 Motor 50 Screw conveyor

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical display location F26B 9/06 B09B 5/00 ZABP 11/16

Claims (2)

[Claims] 1. A main body to which a substance to be dried is supplied and hot air is supplied from above, a stirring shaft penetrating through the main body and rotatable in forward and reverse directions, and a stirring plate fixed to the stirring shaft. And a hot air jacket provided on the surface of the main body and supplied with hot air, and a deodorizing device having a spray nozzle for spraying a deodorizing liquid to exhaust gas discharged from the main body. Drying processing equipment. 2. A crusher for crushing an object to be dried, a main body to which the object to be dried crushed by the crusher is supplied and hot air is supplied from above, A drying apparatus, comprising: a stirring shaft rotatable in forward and reverse directions; a stirring plate fixed to the stirring shaft; and a hot air jacket provided on a surface of the main body and supplied with hot air.