JP2000246215A - Apparatus for drying garbage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dry garbage in a garbage drier promptly in a short period. SOLUTION: An apparatus is composed of a garbage charge hopper 1, a conveying pallet 2 to which garbage is supplied from the hopper 1, a carry-in conveyer 3 for conveying the pallet 2 horizontally, a casing 4 installed at the terminal in the conveyance direction of the conveyer 3, a drying conveyer 5 which receives the pallet 2 in the casing 4 and conveys it in the casing, a hot air circulating apparatus 6 for supplying hot air for drying the garbage into the casing 4, a carry-out conveyer 7 which receives the pallet 2 from the casing 4 at the terminal of the conveyer 5 and carries it out horizontally, an inversion conveyer 8 which receives the pallet 2 from the conveyer 7 and is pivoted rotatably in all directions, a hopper 1a for receiving the dried garbage dropped by the inversion of the conveyer 8, a dried garbage carrying-out means 9 fitted on the lower surface of the hopper 1a, and a return conveyer 10 for receiving the empty pallet 2 from the conveyer 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage drying apparatus, and more particularly to an improvement of a garbage drying apparatus for drying garbage mainly composed of garbage.

[0002]

2. Description of the Related Art Conventionally, when composting or incineration of waste containing a large amount of water, such as garbage of garbage, dehydration is first performed prior to the composting or incineration. Conventionally, as these dehydration treatments, a method of heating and drying garbage at a high temperature and a method of drying garbage by sealing a garbage in an environment close to a vacuum and utilizing a decrease in saturated steam pressure at a low pressure are generally known. ing.

[0003]

When the above-mentioned drying treatment method is carried out, it is generally considered that it is necessary to agitate the garbage during drying in terms of drying efficiency, but the garbage contains garbage. If the garbage is mixed, the leftovers are kneaded by stirring and form a sticky shape, and there is a problem that drying efficiency becomes extremely poor as a result of agglomeration including other garbage.

[0004] In particular, when heating at a high temperature with hot air or the like, only the surface is dried and a considerable amount of time is required to dry the entire surface. There is a problem in that post-processing takes time, for example, when it becomes necessary. When using the saturated steam pressure at the latter low pressure, there is no need to stir the garbage, so there is no problem as in the former, but in order to dry it sufficiently in a short time, suction up to a very high degree of vacuum However, there is a disadvantage that the container needs to be airtight, and the installation and operation of a vacuum pump for obtaining a high degree of vacuum are considerably expensive.

SUMMARY OF THE INVENTION The present invention solves the above problems and, when drying garbage containing garbage, prevents garbage from agglomerating during the drying process and improves the garbage drying apparatus which can reduce equipment and operating costs. Was made as an issue.

[0006]

According to a first aspect of the present invention, there is provided a method for drying garbage, comprising the steps of: inputting a garbage; a transport pallet to which the garbage is supplied from the hopper;
A loading conveyor for transporting the transport pallet in a horizontal direction,
A casing provided at the end of the carrying-in conveyor in the carrying direction, a drying conveyor for receiving the carrying pallet in the casing, and carrying the inside of the casing, and a hot-air circulating device for supplying hot air for drying garbage in the casing. An unloading conveyor that receives the transport pallet from the casing at the end of the drying conveyor and unloads the transport pallet from the casing, a reversal conveyor that receives the transport pallet from the unloading conveyor, and is supported by itself to be rotatable 360 °, A hopper for receiving dried garbage discharged and dropped by reversing the conveyor, a dry garbage discharging means provided on a lower surface of the hopper, and a return conveyor for receiving an empty transport pallet from the reversing conveyor; At the end, the empty transport pallet can be transferred to the transport pallet.

According to the above invention, the garbage on the transport pallet is dried by hot air while being transported in the casing, and even a large amount of garbage is dispersed on the multiple transport pallets to form a thin layer. In addition, the garbage is dried in a short time without agglomeration because it is not stirred. Further, since the garbage becomes granular after drying, there is an effect that the accumulation processing is facilitated.

The hot air temperature during drying is preferably lower than 100 ° C., and more preferably 60 ° C. to 80 ° C. By setting the temperature to such a value, a change in heating such as scattering or burning of necessary organic components is required. In the case where garbage is used as compost, efficient compost raw material can be obtained. According to a second aspect of the present invention, in the above-mentioned garbage drying apparatus, a cleaning tool for an empty conveying pallet surface is provided along the return conveyor.

According to this configuration, the transport pallet is cleaned on the return conveyor, and effective use in the return step is achieved. According to a third aspect of the present invention, in each of the above garbage drying apparatuses, a hopper is provided with a crusher for crushing the garbage. According to the present invention, the garbage to be charged is finely pulverized at the charging port, so that the garbage on the transport pallet can be improved in dispersibility, and the treatment after drying becomes easy.

The garbage drying apparatus according to claim 4, wherein in each of the garbage drying apparatuses, a reversing conveyor and a garbage input hopper are vertically arranged vertically, and a casing is located on a side of the garbage input hopper. The return conveyor is a vertical descending conveyor parallel to the casing positioned across the reversing conveyor and the hopper into which the garbage is charged.

According to this configuration, since the hopper may be disposed between the casing and the return conveyor, the area occupied by the hopper is small, and the area occupied by the machinery with respect to the amount of garbage is small.

[0012]

Next, an embodiment of the present invention will be described. Embodiment 1 FIG. 1 is a side sectional view of a garbage drying apparatus according to Embodiment 1, and FIG.
1 is a plan view of FIG. 1, and FIG. 3 is a sectional view taken along line XX of FIG.

In FIG. 1, a garbage drying apparatus A includes a garbage input hopper 1, a transport pallet 2 to which garbage is supplied from the hopper 1, and a carry-in conveyor 3 for transporting the pallet 2 in a horizontal direction. A casing 4 provided at the end of the carry-in conveyor in the carrying direction, a drying conveyor 5 for receiving the carrying pallet 2 in the casing 4 and carrying the inside of the casing, and hot air for drying garbage in the casing 4. Hot air circulation device 6 for supplying and the drying conveyor 5
At the end of the conveyor, the unloading conveyor 7 receiving the transport pallet 2 from the casing 4 and unloading the transport pallet 2 in the horizontal direction.
A reversing conveyor 8 rotatably supported by 0 °, a hopper 1a for receiving dried garbage discharged and dropped by reversing the reversing conveyor 8, and a dry garbage discharging means 9 provided on a lower surface of the hopper 1a; A return conveyor 10 for receiving an empty transport pallet 2 from the reversing conveyor 8,
At the end of the return conveyor 10, the empty transport pallet 2 can be transferred to the transport pallet 3.

In the first embodiment, the garbage input hopper 1 is provided with a lifting device 18 such as a drum 17 for storing garbage. In addition, below the conveyor 3 below the hopper 1, there is a conveyor 1 for carrying out dry garbage.
9 are provided. Further, the transport pallet 2 on which the garbage is dispersedly loaded is an amount sufficient to fill the inside of the casing 4, and in the illustrated example, 17 sheets constitute one set.

Each pallet is made of a punched metal plate or a wire mesh plate (shown in FIG. 5) so that the placed garbage can be dried well. The carry-in conveyor 3 is installed immediately below the hopper 1, and the garbage transport letts 2 placed thereon pass sequentially under the hopper 1. Behind the hopper 1, a garbage leveling plate 2a is provided on the base frame 11 so as to be at a fixed height on the transport pallet 2.

In the illustrated example, the carry-in conveyor 3 is divided into a part before the casing 4 and the inside of the casing 4. The carry-in conveyor 3a in the casing 4 is, as shown in FIG. The drying conveyor 5 in the casing 4 supports and transports both sides 2a, 2a. That is, in the case of the illustrated example, the drying conveyor 5 is a pair of chain conveyors arranged to face each other, and claw bodies 5a, 5a that support both ends of the transport pallet 2 are protruded at positions facing each other.

The carry-out conveyor 7 is provided with the carry-in conveyor 3a.
The transport pallet 2 is received from the drying conveyor 5 and the pallet 2 is pulled out from the casing 4. The reversing conveyor 8 is supported by a rotating shaft 8a, and is rotatable around the rotating shaft 8a by 360 ° by an electric motor 8b. The rotary shaft 8a is also provided with a vibrating device (not shown) so that vibration is applied at the same time as the reversing operation, so that the dried garbage can be more easily dropped.

The return conveyor 10 of the reversing conveyor 8
On the side, a pull-in conveyor 10a for receiving the transport pallet 2 and transferring it to the conveyor 10 is provided.
As shown in FIG. 3, the hot air circulation device 6 includes a heating furnace 6a (an example of which is shown as a gas burner) using an electric heater, an oil burner, a gas burner, or the like as a heat source, a blower 6b, a duct 6c connecting these, and a large number of tubes on the side of the casing 4. 6d, which are opened to send hot air to the transport pallet 2, and a large number of suction ports 6e to 6e, which open on the opposite side of the casing 4 to suck the air in the casing 4, the hot air sent from the blower 6b is ducted. Air is blown into the casing 4 through 6c, heat is applied for drying the garbage, and the air in the casing 4 whose temperature has been lowered is sucked through the suction port 6e, circulated to the blower 6b again through the heating furnace 6a. ing.

The above-mentioned hot air circulating device 6 and carry-in conveyor 3
The start and stop of the operation of each conveyor and the discharge of the dried garbage can be automatically controlled by the control panel 16 shown in FIG. Next, the operation of the first embodiment will be described. The garbage put in the drum 17 (FIGS. 2 and 4) and the like is put into the hopper 1 by the lift 18 (same as above) and supplied to the transport pallet 2 from the lower part of the hopper 1.

The transport pallet 2 is transported toward the casing 4 by the carry-in conveyor 3, and the supplied garbage is leveled into a layer having a substantially constant thickness without being kneaded by the leveling plate 2a. Further, the transport pallet 2 is sent into the casing 4 and is transferred to the drying conveyor 5 in the casing 4.

Upon receiving the transport pallet 2, the drying conveyor 5 is transported upward, and enters a receiving position for the next transport pallet 2. Thus, the drying conveyor 5 is transported upward with the transport pallets 2 stacked. In this process, the hot air is constantly circulating and flowing from the outlet 6d to the inlet 6e in the casing 4, so that the garbage on the transport pallet 2 is forcibly dried.

Further, after the garbage is leveled on the transport pallet 2 to a certain thickness, no kneading operation is added, so that the garbage does not agglomerate. When the pallet 2 reaches the uppermost stage and a set of pallets 2 is stored in the casing 4 and the garbage is dried in that state, the gate 13 is opened and the transport pallets 2 are sequentially pulled out of the casing 4 from the unloading conveyor 7. Then, they are transferred to the reversing conveyor 8.

In the reversing conveyor 8, the transport pallet 2
The garbage, which has been rotated by 60 ° and dried, becomes granular on the transport pallet 2 without agglomeration and falls into the hopper 1 immediately below. Further, since the transport pallet 2 is not installed immediately below the discharge port of the hopper 1, the dried garbage falls as it is onto the hopper-possible press and is carried out to the outside by the conveyor 9a for carrying out the dried garbage. Go.

The transport pallet 2 which has been rotated once is sent to the return conveyor 10, and when the transport pallet 2 is received, the transport pallet 2 is transferred downward, and enters the receiving posture of the next transport pallet 2. Then, the same operation as described above is repeated for all the transport pallets 2, and thereafter, while the transport pallets 2 are accumulated on the return conveyor 10, the process waits until fresh garbage is input.

As described above, when garbage is generated and a drying process is required, the garbage is supplied to the hopper 1 and thereafter the pallet 2 is automatically and agglomerated through the casing 4 by the transport pallet 2. It is dried without being granulated. Further, by setting the number of pallets in accordance with the amount of garbage generated at one time, it is possible to correspond to an arbitrary amount of garbage. Second Embodiment FIG. 6 is a sectional view of a main part of a garbage drying apparatus according to a second embodiment.

In the garbage drying apparatus according to the second embodiment, a cleaning tool 14 such as a rotary brush is provided on the side of the return conveyor 10 so as to be in contact with the surface of the transport pallet 2. A limit switch 15 for detecting approach of the pallet 2 is provided. The rotating brush 14 is driven to rotate by a limit switch which is turned on when the pallet 2 approaches, and the surface of the pallet 2 is automatically cleaned when the pallet 2 is conveyed toward the hopper 1 by the belt 10a. Embodiment 3 In Embodiment 3, as shown in FIGS.
And a garbage crusher 15 is provided.

The crusher 15 has a rotary blade 15b supported directly below the garbage inlet 15a. In FIG. 1, reference numeral 16 denotes a fixed-rate loosening machine, which loosens the fed garbage and feeds the garbage in a fixed amount so that the garbage does not agglomerate.
The garbage is loosened by 6a and 16a, and at the same time, a certain amount of fall is caused.

The quantitative disentangling machine 16 is provided as needed. According to the third embodiment, the garbage introduced from the hopper 1 is loosened by the quantitative loosening machine 16 and a certain amount is sent to the crushing device 15, and furthermore, crushed by the crushing device 15, so that the agglomeration is reliably prevented. Is done. In the above-described embodiment, the configuration in which the reversing conveyor 8 is positioned immediately above the food waste hopper 1 and the casing 4 and the return conveyor 10 are arranged as a pair has been described. Circulating operation, the installation area of the apparatus can be reduced.

When there is no limit on the installation area,
All of the reversing conveyor 8, the garbage hopper 1, the casing 4, and the return conveyor 10 can be arranged in a plane.

[0030]

As described above, according to the garbage drying apparatus of the present invention, when garbage mixed with garbage is dried, the garbage is dried in a multi-layered form without being kneaded. It can be dried into granules without agglomeration. Further, the dry state of the garbage is very good, and the garbage is in a smooth and dry state, so that the garbage after the treatment is easy to handle, and has an effect that the transport processing and the like become very easy.

In the case where the transport pallets are formed in a multi-layer structure, the area occupied by the apparatus can be reduced, so that there is an effect that space is not taken up.

[Brief description of the drawings]

FIG. 1 is a side sectional view of Embodiment 1 of a garbage drying apparatus of the present invention.

FIG. 2 is a plan view of Embodiment 1 of the garbage drying apparatus of the present invention.

FIG. 3 is a sectional view taken along line XX of FIG. 1;

FIG. 4 is a sectional view taken along line YY of FIG. 2;

FIG. 5 is a plan view of the shelf 2;

FIG. 6 is an enlarged sectional view of a main part of the second embodiment.

FIG. 7 is a plan sectional view of Embodiment 3 of the garbage drying apparatus of the present invention.

[Explanation of symbols]

 Reference Signs List A garbage drying device 1 garbage input hopper 2 transport pallet 3 carry-in conveyor 4 casing 5 drying conveyor 6 hot air circulation device 7 carry-out conveyor 8 reversing conveyor 1a hopper 9 garbage carry-out means 10 return conveyor 17 for receiving empty pallets 17 drum can 18 Lifting equipment 19 Conveying conveyor for dry garbage

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3L113 AA01 AB02 AC04 AC08 AC30 AC35 AC45 AC46 AC48 AC49 AC51 AC54 AC56 AC57 AC59 AC63 AC65 AC67 AC69 AC74 AC79 BA01 CA06 CA08 CB20 CB22 CB34 CB36 DA05 DA17 DA22 4D004 AA03 AC04 BA04 CA42 CB13 CB36 CB42 CB45 4D065 CA06 CC03 EA05 EB17 EC07 ED02 ED12 ED31

Claims (4)

[Claims] 1. A garbage input hopper, a transport pallet to which garbage is supplied from the hopper, a loading conveyor for transporting the transport pallet in a horizontal direction, and a casing provided at an end of the loading conveyor in the transport direction. Receiving the transport pallet within the casing, transporting the pallet from the casing at the end of the drying conveyor, a hot air circulation device for supplying hot air for drying garbage into the casing, Receiving conveyor for unloading in the horizontal direction, receiving the transport pallet from the unloading conveyor, receiving an inverted conveyor rotatably supported by itself 360 °, and receiving dried garbage discharged and dropped by the inverted conveyor being inverted. A hopper, a dry garbage discharging means provided on a lower surface of the hopper, and an empty transport palette from the reversing conveyor. Consists of a conveyor return they receive, said return and transfer enable and has been that food waste drying apparatus to the transport pallet the transport pallet of the air at the end of the conveyor. 2. The garbage drying apparatus according to claim 1, wherein a cleaning tool for an empty transport pallet surface is provided along the return conveyor. 3. The garbage drying apparatus according to claim 1, wherein a crusher for crushing the garbage is provided in the hopper. 4. A reversing conveyor and a garbage input hopper are vertically arranged in a vertical direction, a casing is a vertical tower located on the side of the garbage input hopper, and a return conveyor is a hopper on which the reversing conveyor and the garbage are input. The garbage drying apparatus according to claim 1, wherein the garbage drying apparatus is a vertical lowering conveyor parallel to the casing positioned across the garbage.