JPH0730900B2 - Living waste incineration plant - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an incineration plant for treating domestic waste (hereinafter referred to as “waste”), especially in the sea where the installation plane is frequently inclined. The present invention relates to an incineration plant suitable for the operation of

[Conventional technology]

Conventionally, waste is collected by a garbage truck and then incinerated at an incineration facility on land or dumped in a landfill.

The incineration treatment at the incineration facility on land has already been made in Japanese Patent Application No. 1740
As described in 94 and Japanese Patent Application No. 1-220255, it is performed as follows. First, the waste collected by the garbage truck is weighed together with the garbage truck by the weighing device, and then the loading door is directly put into the garbage pit, and this waste is passed through the feeder by the garbage crane and the incinerator body. It is burned in to form ash, which is loaded into a truck by an ash crane through an ash extruder, an ash conveyor, and an ash pit, discharged, and then disposed of at a landfill.

In addition, when dumping to a landfill, for example, in the case of the Tokyo Bay coast, it is possible to enclose one corner of the bay, reclaim it, and recycle the waste transported by a garbage truck into the area, such as a landfill outside the central breakwater of the Tokyo Port. It is dumped and deposited.

However, these conventional waste treatment facilities alone cannot cope with the increase in the total amount of exhaust gas due to the increase in population and changes in the lifestyle of citizens.

Therefore, the construction of new incineration facilities or the setting of new landfills is urgently required.

However, in constructing a new incineration facility, (1) securing land, (2) repulsion of local residents against bad odors and deterioration of image, (3) noise to surrounding residents due to passage of garbage truck,
There are problems such as exhaust gas treatment, and its realization is extremely difficult. Also, setting up new landfill sites is still difficult from the perspective of environmental protection.

Therefore, the emergence of a waste treatment facility that does not exist in the past is required. That is, there is a demand for a system for waste treatment, which is different from the conventional one, and does not have the problem in the above-mentioned new cutting facility for waste treatment.

In view of the fact that the waste treatment in Japan has a big problem in terms of land, the present inventor has focused on installing a facility for this purpose offshore from the shore.
However, dumping waste as it is into the high seas means environmental destruction on a global scale and is not worth considering at all. Therefore, the waste treatment must be considered including its chemical reaction process, especially incineration process. The present inventor first considered moving the conventional onshore incinerator as it is to the ocean. Similar to offshore oil extraction facilities,
You can either float the incineration facility on the sea or build an artificial island and then build the facility there. However,
The construction cost of the artificial island will be much higher than that of the land, and a connecting road for garbage trucks will be constructed to transport the waste to the facility. Or you have the problem of having to pay for the transport vessel.

Therefore, the present inventor has created an incineration plant ship that incorporates a land-based incineration facility into a ship, transfers waste from a garbage truck while this ship is docking at a wharf, and puts this ship offshore to incinerate. Thought to do. What realized this is the waste incineration plant disclosed in Japanese Patent Application No. 1-174094 and Japanese Patent Application No. 1-220255.

[Problems to be Solved by the Invention]

However, in these waste incineration plants, the hatches for loading waste in the storage section are relatively large, and when a large amount of waste with irregular size and specific gravity is loaded, it is compressed by its own weight and the bottom of the hatch is compressed. In some cases, smooth scraping cannot be guaranteed, and the actual volume of the container may not be reliably utilized.

[Means for Solving the Problems]

Therefore, the present inventor has diligently devised and solved this problem, and even in a waste incineration plant having a large amount of incineration capacity, smooth transfer of waste from carrying in by a garbage truck to a carrying section. We have succeeded in providing an improved waste incineration plant.

That is, the present invention has an inlet and an outlet below a slanted bottom of a storage tank or a storage pit, and is provided with a forced scraping means for scraping out waste at the slanted bottom of the storage pit. A storage section for living waste, and one unique storage container located below the storage section and replaced so that the waste scraped out from the storage section is divided and stored for each container, A waste dispersion piston above the one unique storage container for leveling the waste of the unique storage container, and a waste having a mechanism for transporting the waste contained in the specific storage container without shaking. It is an incineration plant equipped with a transport section for waste and a waste incineration section having a waste incinerator with a forced air blowing mechanism.

The waste stored in the storage pit of the storage section is divided into individual peculiar storage containers via the outlet, and at this time, the bottom of the storage pit is inclined to facilitate the transfer. On top of that, a forced scraping means is provided. As the forced scraping means, a rotary feeding device such as an extruding device having a reciprocating sliding member, a screw feeder device, and a scraper device is suitable. There is also a waste dispersion piston for leveling the waste in its own storage container.

The number of unique storage containers that contribute to smooth transfer is so large that they are stacked one after another on the ship, but a type called a cell guide is used to prevent the stacked containers from collapsing due to shaking. It is preferable to support the rails.

As a mechanism for transporting the waste regardless of shaking in the transport section, it is preferable to use a cage crane that transports the transport container. In some cases,
Instead of this, a pneumatic feed type or a belt conveyor type may be used. Pneumatically-conveyed type is a piston equipped with a cutter and a pedestal that can be opened and closed while cutting the waste sent while compressing it to open the pedestal and drop the waste below it. It is conceivable to use a blower to send the gas to the incineration section via a predetermined passage. In the belt conveyor type configuration, the feeding using the air pressure type blower is replaced with that using the belt conveyor.

The waste incinerator in the incineration section is, for example, a stalker-type incinerator used in a land-based waste incinerator, and it is considered that the combustion efficiency is improved by a forced draft fan and a suction blower. To be

Further, the ash generated by the incineration by the incineration sensation is transferred to and stored in the ash storage hatch for storing the ash.

It should be noted that the provision of an odor treatment device that thermally decomposes the odor generated in the waste storage section is a necessary measure to prevent odor pollution when carrying the waste into the incineration plant.

〔The invention's effect〕

According to the present invention, even in a waste incineration plant having a large amount of incineration capacity, smooth transfer of waste from the transportation by the garbage truck to the transportation section is ensured while uniformly filling the specific storage container. A limited space such as a ship can be effectively used for waste pretreatment, and the waste can be transported to the incineration section without delay. In the meantime, a waste treatment facility is provided without causing the problems associated with the construction of a new land-based waste incineration facility and the setting up of a new landfill site, and its installation plane is frequently used. Suitable for operation on sloping sea. Furthermore, the incineration plant according to the present invention is extremely practical, with less cost problems than constructing an incineration facility after constructing an artificial island.

In addition, the mechanism for transporting waste independently of shaking is
It should also be used effectively when the incinerator is constructed floating on the sea.

〔Example〕

This will be described in detail with reference to the drawings showing an embodiment in which the present invention is applied to a ship.

1 and 2 are a schematic plan view and a side view of the present invention incorporated in a ship. The garbage truck enters the ship from Stern Lamp 1 at the stern. The stern lamp is also used in a car carrier. The garbage truck that has entered the ship throws the waste from the opening opening 2'to the storage tank or storage pit 2 through the port side passage. The emptied garbage truck goes out of the ship via the starboard side passage, Stern Lamp 1.

The waste put in the pit 2 is equipped with a reciprocating sliding member which is a forced scraping means provided along the inclined bottom of the pit 2 from an outlet 3 provided in a lower ridge area of the inclined bottom of the pit 2. By the hydraulic extrusion device 4, the upper open waste storage container 5 which is a unique storage container
Is scratched out. In this case, the bottom of the pit 2 is inclined, and this inclination reduces the load on the extrusion device 4. Further, in order to reliably utilize the actual volume of the container, there is provided a waste dispersion piston 19 'which applies a pressing force to the waste and smoothes it.

The container 5 containing the waste is pulled up by the cage crane 6 and temporarily stored in the container hold. Here, the stacked containers are supported by a kind of rail called a cell guide, and are prevented from shifting due to the shaking of the ship during voyage.

Then, in the waste incineration process after leaving the port, the container 5 is transferred to the upper side of the incinerator hopper 7 by the cage crane 6 again. When the container 5 is transferred from the waste storage pit 2 area to the incinerator hopper 7 area, the cage 8 of the cage type crane 6 can be moved along the cell guide, and can be detachably attached using a normal spreader or twist lock. The container 5 can be completely contained. Furthermore, the cage type crane 6 has an incinerator hopper 7 along a rail provided on the ceiling of the uppermost deck.
Move above. When the waste storage pit 2 is clogged with waste, it is possible to attach a bucket to the cage crane 6 and temporarily take out the waste.

The container 5 that has reached the upper side of the hopper is the container turntable 9
It is taken off and installed detachably. Then, at that position, it is rotated by 180 °, and all the wastes inside are put into the incinerator hopper 7 from the container.

The incinerator 10 is a stalker-type incinerator equipped with a forced blower and a forced blower and a suction blower. The waste is incinerated here. The ash-containing waste gas accompanying the incineration of the waste passes through the waste gas pipe 11, is cleaned by the electric dust collector 12, and is then released to the atmosphere. Further, the dust collected by the electric dust collector 12 is dropped to the ash storage hatch 13. Incinerator 10
Ash collected at the bottom of the ash is also sent to the ash storage hatch 13 by an ash transfer blower. This ash is stored until it arrives at the shore, and after it arrives at the shore, it is transferred to a recovery truck by a crane 14 for landing ash, transported to a landfill, and disposed of. However, this ash may be dumped at sea after kneading with cement and water.

Next, a more detailed description will be given for each section.

The bottom of the waste storage pit 2 in the storage section has an inclination angle of (25 ± 5) degrees in order to reduce the load on the pushing device 4 and to secure a necessary storage capacity, but within that range. It is not of limited nature.

The waste storage pit 2 also has a function of temporarily storing a considerable amount of waste, and also plays a role as a buffer space for fluctuations in the amount of waste carried in. Specifically, even if the balance of waste loading into the container hold is significantly impaired due to the extremely rapid delivery of waste by the garbage truck or the malfunction of the cage crane, the pits concerned Can store a considerable amount of waste as it is without transferring it to the container 5 and prevent the waste from being impeded.

In order to prevent the waste from moving to one side and the stability of the ship being impaired due to the large rolling of the hull, the installation direction of the push-out device should be in the front-back direction of the ship as shown in Figs. It is preferable to send waste.

The waste stored in Container 5, which is a unique storage container,
The cage type crane 6 transfers the waste from the waste storage pit 2 area to the incinerator hopper 7 area through the stacking and storage stage. This cage type crane 6 moves in the stern direction along the ceiling rails 15 to load the container 5 into the incinerator hopper 7.
Carry it right above. Then, the container 5 is set down on the container turntable 9 and installed, and rotated at that position to throw all the waste therein into the incinerator hopper 7.

After that, the cage crane 6 again pulls up the empty waste storage container 5, replaces it with the waste-containing container 5, and repeats the above-mentioned operation.

The cage crane has a cage 8. The waste storage container 5 is housed in the cage 8 while being pulled up to the uppermost deck. Therefore, the garbage storage container 5
Even a swaying ship is transported without shaking. In Fig. 4
Reference numerals 16, 17 and 18 denote a cage moving motor, a wire winding motor and a wire winding drum, respectively.

In the incineration section, the combustion air to the incinerator 10 is
After passing through the forced draft fan, it is heated by the air preheater and then fed into the furnace. The waste gas from the incinerator 10 is sucked by a suction blower, passed through the electric dust collector 12, and then discharged (Fig. 2). On the other hand, the ash that fell under the incinerator 10
It is guided to the ash hopper 19 and sent to the ash storage hatch 13 by the ash transfer blower. In order to prevent dust from being emitted from the hatch 13, exhaust gas from the hatch 13 is guided to a scrubber (a device for removing dust in a water shower), and after being cleaned, it is discharged to the atmosphere.

The waste stored on board the ship while on the shore generates a foul odor. Therefore, due to the opening of the pit cover, measures are required to prevent odor pollution. Therefore, the malodorous air is guided to the boiler constantly operating in the engine room through the pipe from the waste storage pit 2 to the engine room, where it is used as combustion air for thermal decomposition. This treatment solves the odor problem. Explaining this in detail, the stench in the waste storage pit 2 does not leak outside when the hydraulic pit cover is closed, but in the pit where waste is stored, this pit does not leak. -Since the cover is open, odors leak to the outside. Therefore, the air in the unclosed pit is sent to the boiler in the engine room through the air suction pipe for the boiler blower. By doing so, this malodor is pyrolyzed by the heat of the boiler.

The present invention is not limited to the embodiments described in detail above, and it goes without saying that various modifications can be made without departing from the spirit of the present invention.

[Brief description of drawings]

1 and 2 are schematic views showing an embodiment of the present invention, FIG. 3 is a schematic cross-sectional view of a waste loading portion, FIGS. 4 and 5 are schematic views of a cage crane, and FIG. Is a schematic view of a container turntable, and FIG. 7 is a schematic sectional view of a waste transfer part to an incinerator. 4 …… Hydraulic type extrusion equipment 5 …… Garbage storage container 6 …… Cage type crane 9 …… Container turntable

Claims (1)

[Claims] 1. A household waste disposal system having an input port and an ejection port located below a slanted bottom part of a storage pit, and provided with a forced scraping means for scraping out waste at the slanted bottom part of the storage pit below. The storage section of the article, one unique storage container located below the storage section and replaced so that the waste scraped out of the storage section is divided into containers and stored, and the one unique storage container A waste dispersal piston above the storage container for leveling the waste of the specific storage container and a waste transport section having a mechanism for transporting the waste contained in the specific storage container without shaking. And a waste incineration section with a waste incinerator equipped with a forced air blowing mechanism.