JPS6241553B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of operating a coke extinguishing truck for extinguishing red-hot coke extruded from a coke oven and recovering the steam generated at the time.

Currently, from the viewpoint of energy conservation, various methods have been devised to recover the radiant heat of the red-hot coke itself and the extinguishing sensible heat of the red-hot coke generated when extinguishing red-hot coke discharged from a coke oven. However, since the method uses inert gas to extinguish the red-hot coke received from a fire extinguisher, it takes a long time to extinguish the coke, and the process of transporting the coke to the extinguishing equipment becomes longer, resulting in a longer burning time for the red-hot coke. There were drawbacks and problems with its applicability, particularly when installing it in existing coke ovens.

In addition, as a special type of wet fire extinguishing vehicle, it has a grate floor at the bottom and a bottom box that covers this, and a fireproof lid with a pressurized water injection means can be freely attached to the inside of the upper part. There is one in which the body is placed on a trolley. After receiving the red-hot coke inside the fire extinguisher, a sealing lid is placed on the top of the fire engine.
In this state, water is injected from the nozzle of the pressure water injection means onto the red-hot coke inside the case, and the pressure of the steam generated at that time is applied to the top of the coke, causing water and steam to penetrate into the coke and flow from top to bottom. The red-hot coke is extinguished by the flowing water and steam, and the steam generated is led into the bottom box at the bottom and collected.

However, the purpose of this development was to remove dust from the steam generated when extinguishing red-hot coke and to prevent dust from being generated during coke extrusion. The dust collection equipment on the fire extinguishing vehicle collects the dust through the hood mounted on the guide car that covers the top, and the dust in the steam generated during extinguishing is collected by driving the fire extinguishing vehicle to the location of the fire extinguishing tower. Therefore, dust collection equipment on fire engines began to collect the dust.

However, in such a fire extinguishing vehicle, there is only one case that receives the red-hot coke, so in one extrusion process of the coke oven operating machine, the entire amount is received in the case and extinguished, so that the steam is not absorbed until the next process. The generation and changes in steam temperature become intermittent, which poses a major problem in the continuous recovery and reuse of thermal energy and water gas in steam.

The present invention provides the operation of a coke fire extinguishing truck that uses the same principles of extinguishing and steam generation as the wet type fire extinguishing truck, but enables continuous and effective recovery and reuse of the thermal energy of steam and water gas. Regarding the method.

Hereinafter, the present invention will be explained with reference to the embodiments shown in the drawings. In FIGS. 1, 2, and 7, the red hot coke extinguishing and steam recovery equipment according to the present invention is illustrated in FIG. It is equipped with a rope frame type truck 2, a container 3 that can be loaded onto the truck 2, and a fire extinguishing and steam recovery device 4 arranged on the side of the fire truck rail 1. The inside of the container 3 is partitioned into a large number of sections by partitions 9 so that the red hot coke 8 extruded from the coke oven 6 by the extruder 5 and guided by the guide wheel 7 can be divided into multiple sections and stored therein. gas and liquid can freely pass through the lower part of each compartment.
Grate floor 1 that does not allow passage of coke to be extinguished
0 is provided (Figs. 3 and 4).
), and this grate floor 10 is connected to the container 3
As shown in FIG. 5 or FIG. 6, it can be opened and closed so that the red-hot coke 8 inside can be discharged at once after being extinguished.

The trolley 2 on which the container 3 is mounted and constitutes a fire extinguishing vehicle is self-propelled and includes a mounting support structure (not shown) that allows the container 3 to be freely removed.

The fire extinguishing and steam recovery device 4 shown in FIG. 7 has red hot coke 8 transported from the trolley 2 by lifting equipment or traction equipment (not shown) and stored separately in each section of the set container 3. It is now possible to extinguish fires in sequence. Figures 3 and 4
In the case of the embodiment shown in the figure, the upper lid 11 falls on the top of the compartment to be extinguished and becomes airtight from the outside air.
and a lower lid 12 that rises to the lower part of the compartment and becomes airtight from the outside air, and inside the upper lid 11 is a water supply pipe 14 that supplies fire extinguishing water 13 from the outside.
The spray nozzle 15 is connected to the spray nozzle 15 and has a plurality of openings. In this embodiment, the lower lid 12
can be connected to steam reuse equipment (not shown) via a duct 16 and dust collection equipment (not shown) so that steam generated during extinguishing a fire can be recovered and reused.

In the case of such a partial cover method, the fire extinguishing and steam recovery device 4 can be fixed and the container 3 can be moved as shown in FIG. 7 to extinguish the fire in each section, or as shown in FIG. It is also possible to extinguish the fire in each compartment by moving the recovery device 4 itself relative to the container 3 as shown in FIG.

The embodiments shown in FIGS. 9 and 10 have the same feature that each section is covered, but they differ in that all the sections are covered by one cover 11'. That is, in this embodiment, when the upper lid 11' and the lower lid 12' are brought into close contact with the upper and lower parts of the container 3, respectively,
The interior of each compartment is partitioned so that it is not only airtight from the outside air but also from adjacent compartments, and a switching valve 17 is installed in the water supply pipe 14 inside each compartment of the upper lid 11'. A spray nozzle 15 is provided, which is connected through the spray nozzle 15 . Also, lower lid 1
As shown in FIG. 11, each compartment 2' is connected to a duct below through a check valve 18 that opens in the discharge direction under steam pressure, and the red hot coke 8 stored separately in each compartment of the container 3 is connected to the duct below. The steam generated when the fire is sequentially extinguished by operating each switching valve 17 is continuously guided.

With the above configuration, container 3 on trolley 2
In order to receive the red hot coke 8 extruded from the coke oven, the truck 2 may be run at a slow speed during extrusion, as is conventionally done. As a result, the red hot coke 8 is evenly divided and stored in each section of the container 3.

Incidentally, at this time, gas or dust generated by the falling of the red-hot coke is collected by the dust collection equipment through the hood of the guide car that covers the upper part of the container 3, as in the conventional case.

To use the extinguishing and steam recovery device 4 for extinguishing the red-hot coke 8 in the container 3, first the compartment of the container 3 is sealed with the upper lid 11 and the lower lid 12, and the spray nozzle 15 is used to When water is injected into the red hot coke 8 in the compartment, the red hot coke 8 is extinguished by the mixture of water and steam flowing from top to bottom inside the coke due to the pressure of the superheated steam generated there, and the grate floor 1
The superheated steam that has passed through to the lower lid 12 and the duct 16
etc., to a steam reuse facility (not shown). This extinguishing and steam recovery method is carried out by sequentially moving the container 3 or the fire extinguishing and steam recovery device 4 from the first section to the last section of the container 3. The steam generation and steam temperature changes in this case are as shown in FIG. 12, and steam generation is more continuous than in the conventional method shown in FIG. 13. On the other hand, Fig. 9,
As in the embodiment shown in FIG.
When using the container 3, first, each compartment of the container 3 is sealed from the outside air and adjacent compartments with the upper lid 11' and the lower lid 12', and then the switching valve 17 is used to seal each compartment to
By sequentially sprinkling water, the same extinguishing and steam recovery situation as in the above case using the fire extinguishing and steam recovery device 4 can be obtained, but the steam generation is more continuous as shown in FIG. 14 than in the above case. It can be tightened. Therefore, if two or more fire extinguishing and steam recovery devices 4 and 4' are installed, the 14th
It is possible to perform ideal steam recovery that is more continuous than what is shown in the figure and has little difference in steam temperature.

To explain the embodiment shown in FIGS. 15 to 18, in the state shown in FIG.
The container 3 on the No. 1 truck 2 is just before being moved to extinguish the fire in the No. 1 fire extinguishing and steam recovery device 4', and the container 3 on the No.
No. 2 is integrated with guide car 7.
Another container 3 is placed in the fire extinguishing and steam recovery device 4' and is in a state of extinguishing.

Next, moving to the state shown in Fig. 16, the container 3 on the No. 1 trolley 2 is placed in the No. 1 fire extinguishing and steam recovery device 4' and is being extinguished, while at the same time it is empty. The bogie 2 of No. 1 is about to be loaded with the extinguished container 3 in the extinguishing and steam recovery system 4' of No. 2. The container 3 on the No. 2 truck 2 is loaded with red hot coke 8 and is traveling to the No. 2 fire extinguishing and steam recovery device 4'.

Next, in the state shown in FIG. 17, the container 3 of the No. 1 trolley 2 is traveling to drop extinguished coke onto a coke work (not shown).
Container 3 No. 2 is being transferred to extinguish the fire in No. 2 fire extinguishing and vapor recovery device 4'. In the situation shown in FIG. 18, the container 3 on the No. 1 truck 2 is again arranged with the guide car 7 to receive fresh hot coke 8 from the coke oven, and the No. 2 truck 2 is , when the container 3 filled with extinguished coke was about to be moved from the No. 1 fire extinguishing and steam recovery device 4' onto the trolley 2.
In this case the other container 3 is being extinguished in the No. 2 extinguishing and vapor recovery device 4'.

If the above work status is shown along with the elapsed time, the 19th
By sequentially extinguishing the fire in each section of the container 3 and performing this fire extinguishing work with each extinguishing and steam recovery device 4' as shown in the figure, the steam can be released as shown in Figure 14. can be generated continuously under ideal conditions.

Of course, the above effects can also be obtained by performing similar operations using the fire extinguishing and steam recovery device 4.

With the above configuration, the present invention uses a container that can be removed or mounted on a truck, unlike conventional wet fire extinguishing trucks, and divides the inside of this container into a plurality of sections two-dimensionally. The idea was to extinguish the fire easily and reliably, thereby making the steam generated continuous and making effective use of the steam. In addition, in particular, by sequentially extinguishing red hot coke extruded from a coke oven using multiple carts, containers, extinguishing and steam recovery equipment, steam with a small difference in steam temperature can be continuously generated and recovered. Can be done.

Therefore, according to the present invention, steam reuse equipment such as waste heat boilers, which until now have been considered inapplicable due to intermittent steam generation, can now be easily applied, and is extremely superior from the viewpoint of energy saving. It can be said that it is a practical item. In addition, other advantages include the collection of dust from the steam generated during extinguishing, and the extinguished coke does not have a large ash content unlike dry extinguishing equipment, and contains an appropriate amount of moisture, so there is no problem with scattering, etc. It is also effective from the standpoint of pollution prevention.

Furthermore, due to the structure of this equipment, it is not larger-scale than conventional dry fire extinguishing equipment, and can be fully applied to existing coke ovens.

[Brief explanation of the drawing]

Fig. 1 is a sectional view for explaining the situation during extrusion of coke by the fire extinguishing truck according to the present invention, Fig. 2 is a perspective view of the fire extinguishing truck, and Figs. 3 and 4 are the partial cover type fire extinguishing and steam recovery device according to the present invention. Diagram showing an overview of the 5th
6 and 6 are diagrams showing the opening and closing mechanism of the grate floor,
Figures 7 and 8 are plan views showing two usage modes of the partial cover type fire extinguishing and steam recovery device, Figure 9 and Figure 1.
Figures 0 and 11 are diagrams showing an outline of the entire cover type fire extinguishing and steam recovery device according to the present invention, Figure 12 is a chart showing steam generation and steam temperature changes according to the conventional fire extinguishing method, Figures 13 and 11 are Figure 14 is a chart showing steam generation and steam temperature changes according to the present invention, Figures 15 to 18 are diagrams showing an embodiment of the method of operating a coke fire extinguishing truck according to the present invention, and Figure 19 is a diagram showing the working situation. It is a figure which shows the elapsed time. 1... Fire truck rail, 2... Trolley, 3... Container, 4, 4'... Fire extinguishing and steam recovery device, 5...
Extruder, 6... Coke oven, 7... Guide car,
8... Red-hot coke, 9... Partition, 10... Grate floor, 11, 11'... Upper lid, 12, 12'...
... Lower lid, 13 ... Fire extinguishing water, 14 ... Water supply pipe, 1
5... Spray nozzle, 16... Duct, 17...
...Switching valve, 18...Check valve, ~...Each section.

Claims (1)

[Claims] 1. In a vehicle that has a trolley that runs on fire extinguisher rails, a container that can be loaded onto the trolley, and a fire extinguishing and steam recovery device placed on the side of the fire extinguisher rails,
The container is a refractory box with sufficient fire resistance to receive red hot coke extruded from a coke oven, and the interior thereof is partitioned into a plurality of sections in a plane, and the lower part of each section allows gas and liquid to freely pass through. The container is equipped with a grate floor through which the coke to be extinguished cannot pass, and the extinguishing and steam recovery device is equipped with a grate floor that prevents the coke being extinguished from passing through. It consists of a fire extinguishing water spray nozzle and a steam recovery duct connected to the lower lid, and multiple vehicles, containers, fire extinguishing and steam recovery devices are used to extinguish red hot coke extruded from the coke oven and steam it. Set the container in the recovery device in sequence and extinguish the fire in each compartment of the container, and perform this extinguishing work continuously for each extinguishing and vapor recovery device to continuously recover the steam generated there. How to drive a coke fire extinguisher featuring: