JP2000240930A - Method and device for dust disposal on cleaning incineration furnace equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize a cleaning fan by performing a cleaning of the inside of an incineration furnace while a suction is performed by the cleaning fan, collecting generated duct by a dust collector for cleaning, also, performing a cleaning of the inside of an exhaust gas dust collector while a suction is performed by the cleaning fan, and collecting generated dust by the dust collector for cleaning. SOLUTION: A stream of air from an incineration furnace 1 to a dust collector 9 for cleaning is generated by driving a cleaning fan 8. The cleaning of the incineration furnace 1 is performed, and dust generated at this time is collected and removed by the dust collector 9 for cleaning, and clean air which is separated from the dust is discharged into the atmosphere. When the inside of an exhaust gas dust collector 2 is cleaned, the cleaning fan 8 is stopped for a time, dampers 21, 26, 28 and 27 for shielding are operated, and the operation of the cleaning fan 8 is resumed, and a stream of air from the exhaust gas dust collector 2 to the dust collector 9 for cleaning is generated. Under this state, the cleaning of the inside of the exhaust gas dust collector 2 is performed, and dust generated at this time is collected and removed by the dust-collector 9 for cleaning, and clean air which is separated from the dust is discharged into the atmosphere.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for treating incinerator equipment at the time of cleaning the incinerator equipment, which can efficiently treat the dust generated at the time of cleaning the incinerator equipment.

[0002]

2. Description of the Related Art Generally, dust is contained in exhaust gas from an incinerator. For this reason, the exhaust gas from the incinerator is sent to an exhaust gas precipitator connected to an induction fan, where the dust in the exhaust gas is removed and then released to the atmosphere. Dust accumulates inside the incinerator and exhaust gas dust collector, so it needs to be cleaned periodically. When cleaning the inside of this incinerator or exhaust gas dust collector,
Due to the generation of dust, in recent years, incinerator facilities have been provided with a system for collecting dust during cleaning.

FIG. 7 is a block diagram showing a conventional dust treatment apparatus for cleaning incinerator facilities. In the figure, 1 is an incinerator, 2
Is an exhaust gas dust collector, 3 is an induction fan, and 4 is a chimney, which are connected in series via first, second and third flues 5, 6, and 7. The first flue 5 connecting the incinerator 1 and the exhaust gas collector 2 is provided with a suction port 11 for connection to a cleaning dust collector 9 connected to a cleaning fan 8.
A damper 1 for shutoff is provided in a pipe 12 connecting the dust collector 1 and the cleaning dust collector 9.
When the incinerator 1 is in operation, the shut-off damper 13 is closed and the space between the first flue 5 and the cleaning dust collector 9 is shut off.

In such a device, the inside of the incinerator 1 and the exhaust gas dust collector 2 are first cleaned by opening the shut-off damper 13 and then driving the cleaning fan 8 to clean the incinerator 1 and the exhaust gas dust collector 2. A flow of air to the dust collector 9 is generated. Then, in this state, the inside of the incinerator 1 and the exhaust gas
The inside is cleaned, dust generated at this time is collected and removed by a cleaning dust collector, and clean air separated from the dust is released to the atmosphere.

[0005]

However, when the shut-off damper 13 is opened, the cleaning dust collector 9 is always connected to both the incinerator 1 and the exhaust gas dust collector 2 in the above-described conventional apparatus. The efficiency is low, and the capacity of the cleaning fan 8 is also required to be high accordingly. Therefore, it is unavoidable that the equipment cost and the running cost increase, resulting in an uneconomical system.

A technical problem of the present invention is to reduce the load by selectively connecting a cleaning dust collector to either an incinerator or an exhaust gas dust collector, thereby reducing the size of the cleaning fan. An object of the present invention is to make it possible to reduce equipment costs and running costs.

[0007]

According to the present invention, there is provided a dust treatment method for cleaning incinerator equipment, comprising: an incinerator comprising an incinerator, an exhaust gas dust collector, an induction fan, and a chimney connected in series via a flue. The equipment can be connected to the incinerator and the exhaust gas dust collector independently of the incinerator by connecting the cleaning fan and multiple shut-off dampers.
And in a system with a cleaning dust collector that can also disconnect any connection, when cleaning the incinerator and exhaust gas dust collector, connecting the cleaning dust collector to the incinerator, disconnecting the connection with the exhaust gas dust collector, Cleaning the inside of the incinerator while sucking it with a cleaning fan and collecting dust generated at this time by a cleaning dust collector, and connecting the cleaning dust collector to the exhaust gas dust collector and disconnecting the connection to the incinerator And a step of cleaning the inside of the exhaust gas dust collector while sucking by the cleaning fan, and collecting dust generated at this time by the cleaning dust collector,
It is characterized by having.

In the apparatus used in this method, a first shutoff damper is provided in a flue between an incinerator and an exhaust gas dust collector, and a first shutoff damper is provided before and after the first shutoff damper in a flue between the incinerator and the exhaust gas dust collector. Are provided with suction ports for connection to a cleaning dust collector connected to the cleaning fan, and second and third shut-off dampers are provided in pipes connecting these suction ports and the cleaning dust collector, respectively.

In the apparatus used in this method, a first and a second shut-off damper are provided in series in a flue between an incinerator and an exhaust gas dust collector, and the smoke between the first and second shut-off dampers is provided. A road is provided with a suction port for connection to a cleaning dust collector connected to a cleaning fan, and a pipe connecting the suction port and the cleaning dust collector is provided with a third blocking damper.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. Hereinafter, the first of the present invention.
A method for treating dust during cleaning of incinerator equipment according to the embodiment and an apparatus used in this method will be described with reference to FIGS. FIG. 1 is a view showing a configuration of a dust processing apparatus at the time of cleaning the incinerator equipment according to the first embodiment, and FIGS. 2 and 3 are explanatory views showing a dust processing step at the time of cleaning the incinerator equipment.
In the drawings, the same parts as those in the above-described conventional example (FIG. 7) are denoted by the same reference numerals.

In the dust treatment apparatus for cleaning the incinerator equipment of the first embodiment, a first shutoff damper 21 is provided in a flue between the incinerator 1 and the exhaust gas dust collector 2, that is, the first flue 5. And an inlet for connection between the incinerator-side flue 5a and the exhaust-gas dust collector-side flue 5b in the first flue 5 divided by the first blocking damper 21 and the cleaning dust collector 9 connected to the cleaning fan 8. 22 and 23, and second and third shut-off dampers 26 and 27 are provided in connecting pipe portions 24a and 24b of a pipe 24 connecting the suction ports 22 and 23 and the cleaning dust collector 9, respectively. Dampers 21, 26, 2
7, the cleaning dust collector 9 is selectively connected to one of the incinerator 1 and the exhaust gas dust collector 2,
When the incinerator 1 is operated, the connection between the incinerator 1, the exhaust gas dust collector 2, and the cleaning dust collector 9 can be cut off.

Further, a fourth shut-off damper 28 is provided on the discharge side of the exhaust gas dust collector 2 so that the exhaust gas dust collector 2 and the induction fan 3 can be shut off. Dust is prevented from flowing backward from the chimney 4 side. The incinerator 1 and the exhaust gas dust collector 2 are each provided with a manhole (not shown), from which outside air can be introduced. Therefore, even if the discharge side of the exhaust gas dust collector 2 is shut off, the cleaning fan 8 is not operated. It does not affect the suction operation. Other configurations are the same as those of the above-described conventional example.

Next, a dust treatment method for cleaning the incinerator 1 and the exhaust gas dust collector 2 using the apparatus of the first embodiment will be described. Here, a case where cleaning is performed first from the incinerator 1 side will be described as an example. First, the manholes of the incinerator 1 and the exhaust gas dust collector 2 are opened so that outside air can be introduced therefrom. Next, as shown in FIG. 2, the second breaking damper 26 is opened, and the first and third breaking dampers 21 and 27 are opened.
Is closed, and the cleaning fan 8 is driven to generate a flow of air from the incinerator 1 to the cleaning dust collector 9. Then, the inside of the incinerator 1 is cleaned in this state, dust generated at this time is collected and removed by the cleaning dust collector 9, and the clean air separated from the dust is released to the atmosphere.

In order to clean the inside of the exhaust gas dust collector 2,
The cleaning fan 8 is stopped once, the third shut-off damper 27 is opened as shown in FIG. 3, and the first and second shut-off dampers 2 are opened.
1, 26 and the fourth shut-off damper 28 are closed, the operation of the cleaning fan 8 is restarted, and an air flow from the exhaust gas dust collector 2 to the cleaning dust collector 9 is generated. In this state, the inside of the exhaust gas dust collector 2 is cleaned, dust generated at this time is collected and removed by the cleaning dust collector 9, and clean air separated from the dust is discharged to the atmosphere.

As described above, in the first embodiment, since the cleaning dust collector 9 can be selectively connected to either the incinerator 1 or the exhaust gas dust collector 2, the load on the cleaning fan 8 is reduced. This is greatly reduced compared to the related art, and the size of the cleaning fan 8 can be reduced, so that equipment costs and running costs can be significantly reduced.

Embodiment 2 FIG. 4 is a view showing a configuration of a dust processing apparatus at the time of cleaning the incinerator equipment according to the second embodiment of the present invention, and FIGS. 5 and 6 are explanatory diagrams showing a dust processing step at the time of cleaning the incinerator equipment. In the drawings, the same parts as those in the first embodiment are denoted by the same reference numerals.

The dust treatment apparatus for cleaning the incinerator equipment according to the second embodiment includes a first flue 5 between the incinerator 1 and the exhaust gas collector 2, that is, a first flue 5, and a first and second shut-off dampers 31. ,
32 in series, and these dampers 31, 32
A suction port 33 for connection to the cleaning dust collector 9 connected to the cleaning fan 8 is provided in the flue 5c between the pipes.
5 is provided to selectively connect the cleaning dust collector 9 to one of the incinerator 1 and the exhaust gas dust collector 2 by a combination of opening and closing of the shut-off dampers 31, 32, and 35. The connection between the incinerator 1, the exhaust gas dust collector 2, and the cleaning dust collector 9 can be cut off. The other configuration is the same as that of the first embodiment.

An incinerator 1 using the apparatus of the second embodiment
In order to clean the exhaust gas dust collector 2, the manholes of the incinerator 1 and the exhaust gas dust collector 2 are first opened so that outside air can be introduced therefrom. Next, as shown in FIG. 5, the first and third breaking dampers 31, 35 are opened, and the second breaking damper 32 is opened.
Is closed, and the cleaning fan 8 is driven to generate a flow of air from the incinerator 1 to the cleaning dust collector 9. Then, the inside of the incinerator 1 is cleaned in this state, dust generated at this time is collected and removed by the cleaning dust collector 9, and the clean air separated from the dust is released to the atmosphere.

In order to clean the inside of the exhaust gas dust collector 2,
Once the cleaning fan 8 is stopped, the second and third blocking dampers 32 and 35 are opened as shown in FIG. 6, the first blocking damper 31 and the fourth blocking damper 28 are closed, and the cleaning fan is closed. 8, the flow of air from the exhaust gas dust collector 2 to the cleaning dust collector 9 is generated. In this state, the inside of the exhaust gas dust collector 2 is cleaned, dust generated at this time is collected and removed by the cleaning dust collector 9, and clean air separated from the dust is discharged to the atmosphere.

Also in the second embodiment, the cleaning dust collector 9 can be selectively connected to either the incinerator 1 or the exhaust gas dust collector 2, so that the cleaning fan 8 can be connected similarly to the first embodiment. Of the cleaning fan 8 can be greatly reduced as compared with the related art, and the size of the cleaning fan 8 can be reduced.
Equipment costs and running costs can be significantly reduced.

[0021]

As described above, according to the present invention, since the cleaning dust collector can be selectively connected to either the incinerator or the exhaust gas dust collector, the cleaning fan can be connected to either the incinerator or the exhaust gas dust collector. What is necessary is just to have the ability to process the larger volume, and the size can be reduced accordingly. Therefore, equipment costs and running costs can be significantly reduced.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a dust treatment apparatus during incinerator facility cleaning according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of a dust treatment step during cleaning of the incinerator equipment according to the first embodiment.

FIG. 3 is an explanatory diagram of a dust processing step during cleaning of the incinerator equipment according to the first embodiment.

FIG. 4 is a configuration diagram of a dust treatment apparatus during incinerator facility cleaning according to a second embodiment of the present invention.

FIG. 5 is an explanatory diagram of a dust treatment step during cleaning of the incinerator equipment according to the second embodiment.

FIG. 6 is an explanatory diagram of a dust treatment step during cleaning of the incinerator equipment according to the second embodiment.

FIG. 7 is a configuration diagram of a conventional dust treatment apparatus for cleaning incinerator facilities.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Incinerator 2 Exhaust gas dust collector 3 Induction fan 4 Chimney 5,6,7 Flue 8 Cleaning fan 9 Cleaning dust collector 21,26,27,31,32,35 Shut-off damper 22,23,33 Suction port 24 , 34 piping

Claims (3)

[Claims] 1. An incinerator, comprising an incinerator, an exhaust gas dust collector, an induction fan, and a chimney connected in series via a flue, connected to a cleaning fan, and connected to the incinerator by a plurality of shut-off dampers. In a system equipped with a cleaning dust collector that can be independently connected to the exhaust gas dust collector and can be disconnected from any of them, when cleaning the incinerator and the exhaust gas dust collector, the cleaning dust collector is connected to the incinerator and the exhaust gas dust collector is connected. And the inside of the incinerator is cleaned while sucking with a cleaning fan.
The process of collecting dust generated at this time by a cleaning dust collector, the process of connecting the cleaning dust collector to the exhaust gas dust collector, and the connection to the incinerator, and the process of cleaning the inside of the exhaust gas dust collector while sucking it with the cleaning fan And a step of collecting dust generated at this time by a dust collector for cleaning. 2. An incinerator facility comprising an incinerator, an exhaust gas dust collector, an induction fan, and a chimney connected in series via a flue, wherein a first shutoff is provided in the flue between the incinerator and the exhaust gas dust collector. A damper is provided, and before and after the first shut-off damper in the flue between the incinerator and the exhaust gas dust collector, suction ports for connection to a cleaning dust collector connected to a cleaning fan are respectively provided, and these suction ports and the cleaning are provided. A dust treatment apparatus for cleaning incinerator facilities, wherein a second and a third damper for shutting down are respectively provided in a pipe connecting to a dust collector. 3. An incinerator system comprising an incinerator, an exhaust gas dust collector, an induction fan, and a chimney connected in series via a flue, wherein a first and a second flue are provided between the incinerator and the exhaust gas dust collector. And a suction port for connection to a cleaning dust collector connected to a cleaning fan is provided in a flue between the first and second blocking dampers, and the suction port and the cleaning dust collector are provided. A dust treatment apparatus for cleaning incinerator equipment, wherein a third shut-off damper is provided in a pipe connecting between the two.