JPH0367912A - Incineration plant for life system waste - Google Patents

Abstract

PURPOSE:To be adaptable for working on sea, etc. where the face on which the device is installed inclines quite often by providing a storage section which is provided with means with means of raking out forcibly, transportation section which is provided with a mechanism for transporting wastes with no relation with the swaying of the wastes, and incineration section with a forced blast mechanism. CONSTITUTION:A waste collecting vehicle which has entered the inside of a ship goes through a graded route 2 and dumps wastes into a hatches 4 for loading them to accumulate them there. In the working of this plant the wastes are raked out to a container 9 for waste transportation that is arranged at the bottom of a waste discharge tank 8 along the bottom section section of the hatch 4 from a waste dis charge port 6 by a hydraulic waste extruding device which is provided with a recipro cating sliding member. The container 9 is lifted up without swaying, after it is loaded with wastes, by a cage-shaped crane 10 along the rails of a waste discharge tank 8. Further, the crane 10 moves along the rails that are installed on the ceiling of the topmost deck to a position above an incinerator hopper 11 and then drops the wastes into an incinerator 12. The incinerator 12 is provided with a positive blower 13 and a suction blower 14 and here the wastes are incinerated.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides an incineration blunt for the treatment of domestic waste (hereinafter referred to as "waste"), especially for use in offshore environments where the installation plane is frequently inclined. This article relates to an incineration plant suitable for operation in, etc.

[Prior Art] Conventionally, waste is collected by garbage trucks and then incinerated in an on-shore incineration facility or dumped in a landfill.

The incineration process in the incineration facility on land is explained as follows with reference to FIG. 12. After the waste collected by the first garbage truck is weighed by the weighing device [phase] together with the garbage truck, it is directly thrown into the garbage pit ■ from the input door ■.

This input waste is combusted by the garbage crane, passes through the feeder, and is burned in the incinerator main unit, becoming ash. The waste is loaded onto trucks and transported by lane ■, and then disposed of at a landfill. On the other hand, the gas produced in this incineration process passes through the boiler ①, cyclone ①, dust collector ＠, and chimney 0, and is then discharged to the outside as a gas that has undergone a certain chemical treatment. The energy extracted through this process is effectively used in public baths and drought pools.

2 In addition, dumping in a landfill is, for example, on the Tokyo Bay coast, such as the Tokyo Tower central breakwater outer landfill, where a corner of the bay is fenced off and reclaimed, and waste is transported within that area by garbage trucks. The waste is dumped and accumulated.

However, these conventional waste treatment facilities are no longer able to cope with the increase in the total amount of waste due to population growth and changes in citizens' lifestyles.

[Problem to be solved by the invention]

Therefore, there is an urgent need to construct new incineration facilities or establish new landfill sites.

However, the construction of a new incineration facility requires (1) securing the site, (2) opposition from local residents due to bad odors and a negative image, and (3) noise and noise to surrounding residents caused by passing garbage trucks.
Due to issues such as exhaust gas treatment, it is extremely difficult to achieve this goal. The establishment of new landfill sites is also difficult from an environmental protection perspective.

For this reason, there is a problem in that it is necessary to construct a connecting road for waste treatment facilities and collection vehicles, which does not exist in the past, or to provide transportation vessels.

Therefore, the present inventor created an incineration plant ship that incorporates a land-based incineration facility into the ship, and while this ship is docked at a wharf, waste is transferred from garbage trucks, and the ship is taken out to sea and incinerated. I thought about doing this. However, as is clear from Figure 12, the garbage crane ■ and the ash lane ■
No measures have been taken to deal with shaking, and simply installing a conventional land-based incineration facility on a ship is not practical at sea, where ships must be affected by waves and swells.

[Means to solve the problem]

To this end, the inventor of the present invention has worked diligently to solve this problem and succeeded in providing an incineration plant for waste treatment that is suitable for operation at sea, etc., where the installation plane is frequently inclined. It is.

That is, the present invention requires the appearance of a waste storage section having a freely openable/closable input port and a take-out port at the bottom of the storage chamber, and provided with forced scraping means. That is, there is a need for a system for waste treatment that is different from conventional waste treatment and does not have the problems described above in new equipment for waste treatment.

Therefore, considering that waste treatment in Japan has a major problem in terms of land availability, the present inventor focused on installing a facility for this purpose on the ocean, away from the shore.

However, dumping waste directly into international waters means destruction of the environment on a global scale, and is not worth considering at all. Therefore, waste treatment must be considered including the chemical reaction process, especially the incineration process. The inventor first considered moving a conventional land-based incineration facility offshore. Similar to offshore oil facilities,
The options are to float the incineration facility on the ocean, or to build it on an artificial island. however,
The cost of constructing an artificial island would be much higher than on land, and it would be difficult to transport the waste to the facility without having to worry about shaking. This is an incineration plant equipped with a waste transport section having a mechanism of

The waste stored in the storage section is transferred to the transfer section via the outlet, and in order to facilitate smooth transfer, it is preferable that the bottom surface of the storage is sloped. As the forced scraping means, a rotary feeding device such as an extrusion device equipped with a reciprocating sliding member, a screw feeder device, a scraper device, etc. is suitable. In particular, in order to smoothly sweep out stored waste from the outlet, even when using a rotary feeder, it is not a simple one-way feeding mechanism, but a mechanism that gradually feeds the waste by repeatedly moving forward and backward. It is preferable to do so.

As a mechanism for transporting waste irrespective of flutter in the transport section, it is preferable to use a cage type crane for transporting transport containers. Depending on the case, instead of this, a pneumatic feeding type or a belt conveyor type may be used. The pneumatic feeding system uses a piston equipped with a cutter and a pedestal that can be opened and closed, compressing and cutting the waste that is sent between them, and then opening the pedestal and dropping the waste below. A possible mechanism is to send the gas to the incineration section using a blower through a predetermined passage. The belt conveyor type structure is one in which the above-mentioned pneumatic feeding type blower is replaced with one using a held conveyor.

The waste incineration equipment in the incineration section is, for example, a stoker-type incinerator used in waste incineration facilities on land, which uses a forced fan and a suction fan to increase combustion efficiency. Conceivable.

Further, ash produced by incineration in the incineration section is transferred to and stored in an ash storage hatch.

Additionally, an odor treatment device will be installed to thermally decompose the odor generated in the waste storage section. Garbage trucks enter the ship from Stern Ramp I at the stern. The stern lamp in question is also used on specialized car carriers.

The garbage truck that has entered the ship passes through a ramp 2, passes through a passage 3 on the port side, and drops waste into a garbage loading haunch 4, which is an open storage. The empty garbage truck passes through the starboard side aisle 3, ramp 2, and stern ramp 1.
Go overboard.

In the drawing, the hatch 4 is provided with five hatches, each of which can be opened and closed by a hydraulic hatch cover. These are opened and closed in a sequence that allows for efficient loading of waste.

As described above, the waste that is successively brought into the garbage loading hatch 4 by the garbage truck is accumulated in this corbel 4. During operation of this plant, waste is removed from a take-out port 6 provided at the bottom of the hatch 4 through a hydraulic extrusion device 7 equipped with a reciprocating sliding member, which is a forced scraping means provided along the bottom of the hatch 4. Therefore, the upper part placed at the bottom of the waste removal tank 8 is a necessary measure to prevent odor pollution from occurring when waste is transported to the incineration plant.

〔Effect of the invention〕

According to the present invention, a waste treatment facility is provided without causing the problems that occur with the construction of a new waste incineration facility on land or the establishment of a new landfill, as described above. Moreover, it is suitable for operation in maritime rings where its installation plane is frequently inclined. Furthermore, the incineration plant according to the present invention has fewer cost problems than constructing an incineration facility after building an artificial island, and is extremely practical.

The mechanism for transporting waste regardless of shaking is
It should also be effectively used when incineration facilities are constructed floating on the sea.

[Example] This will be described in detail based on drawings showing an example in which the present invention is applied to a ship.

Figures 1 and 2 are a schematic plan view and a side view 8 It is scraped out into an open garbage transport container 9.

In this case, the bottom of the hatch 4 is inclined, and this inclination reduces the load on the extrusion device 7.

After storing the waste, the waste transport container 9 is lifted up by a cage-type crane 10. The garbage removal tank 8 is provided with a rail called a cell guide, and the cage 41 of the cage type crane 10 moves along this rail, completely enclosing the container 9, and the ship's hull. Even if the container 9 shakes, the container 9 can be pulled up without shaking. Furthermore, the cage type crane 10 moves along the rails provided on the ceiling of the top deck to the top of the incinerator hopper 11, and there throws the waste into the incinerator 12. In addition, when the garbage loading haunch 4 is clogged with waste, it is also possible to temporarily take out the waste by attaching a packet to this cage type crane 10.

The incinerator 12 has a forced air blower 13 which is a forced air mechanism.
This is a stoker 0 type incinerator equipped with a suction blower 14 and a suction blower 14. Here the waste is incinerated.

The waste gas containing ash accompanying the incineration of waste passes through the waste gas pipe 15, is purified by the electrostatic precipitator 16, and then released into the atmosphere. In addition, the dust collected by the electric dust collector 16 is
The ash is dropped into the ash storage hatch 17. The ash accumulated at the bottom of the incinerator 12 is also sent to the ash storage hatch 17 by the ash transfer blower 18.

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 the ash landing crane 19, transported to a landfill, and disposed of by dumping. However, this ash may be mixed with cement and water and then dumped at sea.

Next, each section will be explained in more detail.

Bottom part 24 of the waste loading hatch 4 in the storage section
has an inclination angle of (25 ± 5) degrees in order to reduce the load on the extrusion device 7 and ensure the necessary storage capacity, but it is not limited to this range. .

In order to prevent waste from moving to one side due to large rolls of the ship and impairing the stability of the ship, it may be set to 1.

In addition, a bilge well 2 is provided at the bottom of the hatch 4 to collect moisture from the waste stored in the hatch 4.
8 is preferably provided. When the collected wastewater reaches a certain level, it is pumped to the bilge.
It is transferred to the tank.

It is preferable that a ballast tank 29 for maintaining the stability of the hull be disposed at the bottom of the hatch 4, and heel adjustment tanks 30 for correcting the inclination of the hull on the left and right sides of the hatch 4. be.

The waste stored in the waste transport container 9 in the Is section is lifted up to the second deck by a cage crane 10 through the waste removal tank 8 (FIG. 5). This cage-type lane IO moves in the stern direction along the ceiling rail 37, and carries the garbage transport container 9 to a position directly above the incinerator hopper. The bottom of the garbage transport container 10 that has reached this position opens,
Waste inside the incinerator hopper H-4. Part 1; 3 It is preferable that the extrusion device is installed so that the waste is sent toward the rear of the ship, as shown in FIG.

The reciprocating sliding member is composed of a plurality of wedge-shaped pieces 31 arranged in a row on the pushing direction line. This reciprocating sliding member is slid by a hydraulic drive 32 a predetermined distance along the inclined bottom to push the stored waste out of the hutch 4. The waste is received by a container 33 and stored in a waste transport container 9. In addition to the basic wedge shape shown in the drawings, seed shapes are also possible. The wedge-shaped pieces 31 shown in FIG. 3 and FIGS. 4a to 4c are arranged continuously without gaps in the pushing direction line, that is, in the stroke direction. Instead of such an arrangement, the individual wedge-shaped pieces may have gaps at regular intervals and may be connected to each other with ronds or the like, or conversely, the wedge-shaped pieces may be overlapped. If this reciprocating sliding mechanism is applied, the bottom part 1 of the hatch 4 can be configured as a belt conveyor type, and a scraper device 2 can be installed along the bottom part. Slips and incineration falls to 12 and is incinerated.

After that, cage type lane] 0 is again garbage removal tank 8
Return to the top and lower the garbage transport container 9 to below the garbage removal drum 7. At this time, in order to make it easier for the garbage 1H11 container 9 to enter the entrance of the garbage removal tank 8, the portaple gas 40, which has entry guides 54 that open in two directions on two sides, is installed in the garbage removal tank 8. It is attached to the 42nd part of the This portaple guide 40 is removed during docking, and the similar opening is covered, so it does not become an obstacle to the running of the garbage truck.

The cage type crane has a cage 41.

The garbage transport 1 general container 9 is placed in the cage 4 after being pulled up to the top deck. Therefore, the garbage transport container 9 is transported without shaking even when the container IIJa shakes. Reference numerals 43, 44 and 45 in FIG. 7 respectively indicate a motor for moving the cage, a motor for winding one Noyer and a motor for winding L, and four drums for wire stocking.

The bottom of the garbage transport container 9 is composed of two movable bottom plates 46 arranged diagonally (Figures 9a and 9b).
Figure 9c). This movable bottom plate 46 is normally pushed by a push rod 49 pushed up by a spring 48 in an air cylinder 47, and is closed as shown by the solid line in FIG. 9b. Waste is accepted in this condition. However, when this container 9 is placed above the incinerator hopper 11, it is connected to a compressed air inlet vibrator 50, and the high pressure air injected from here is sent to the upper part of the piston 52 via a high pressure rubber hose 51, and the Overcoming the force of , the piston 52 and push rod 49 are pushed down. Therefore, the movable bottom plate 46 uses the hinge 53 as a fulcrum due to the weight of the waste.
Open to the broken line. The waste in the waste transport container 9 is thus thrown into the incinerator hopper 11.

In the incineration section, the combustion air to the combustion furnace 12 passes through the forced air blower 13, is heated by the air preheater 56, and is then sent into the furnace. Because of this, bad odors leak outside. Therefore, the air in the unclosed hatch is sent to the boiler in the engine room 20 via the boiler blower air suction pipe 62.

By doing this, this bad odor is thermally decomposed by the heat of the boiler (Figures 10 and 11).

It goes without saying that the present invention is not limited to the embodiments detailed above, and that various changes can be made without departing from the spirit thereof.

[Brief explanation of drawings]

1 and 2 are schematic diagrams showing one embodiment of the present invention; FIGS. 3, 4a, 4b, 4c, 5, 6, and 7; 1. Figures 8, 9a, 9b, and 9c are diagrams showing each part, Figures 10 and 11 are diagrams showing air flow when odor treatment is carried out, and Figure 12 is a diagram showing the air flow on land. This is a schematic diagram of an incineration facility. 4...Haunch for loading garbage 7. Further, the waste gas from the incinerator 12 is sucked out by the suction blower [14], and is discharged after passing through the electrostatic precipitator 16 (second
figure). On the other hand, the ash falling below the incinerator 12 is guided to the ash hopper 58 and sent to the ash storage batch 17 by the ash transfer blower 18. In order to prevent dust from being emitted from this hatch 17, the exhaust air from here is passed through a scrubber 61 (
After being purified, it is released into the atmosphere (Figure 5). It should be noted that waste stored on board the ship while it is docked generates a bad odor, so measures must be taken to prevent odor pollution when the haunch cover 5 is opened. Therefore, the foul-smelling air is led to the boiler that is constantly operating in the engine room 20 via piping from the garbage loading hatch 4 to the engine room 20, where it is used as combustion air and thermally decomposed. This treatment solves the odor problem. To explain this in detail, the bad odor inside the garbage loading hatch 4 will not leak out when the hydraulic corbel cover is closed, but the waste storage operation 6 7... garbage removal drum 9... Garbage transport container 10... Cage crane 12... Incinerator 20... Engine room

Claims (1)

[Claims] A storage section for domestic waste, which has an inlet that can be opened and closed and an outlet at the bottom of the storage, and is equipped with forced scraping means, and a section for transporting the waste regardless of shaking. An incineration plant comprising a waste transport section having a mechanism and a waste incineration section having a waste incinerator with a forced air mechanism.