JPS5910111Y2 - Coke oven furnace cleaner - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a coke oven oven cleaner that can easily collect and remove dust that accumulates near both side surfaces of a coal-carrying car running track.

In a coke oven, when charging coal into the coking chamber from the coal tank of the coal car through the coal charging port installed on the ceiling of the coking chamber, or when the coal car is running, coal spills around the coal charging port or onto the furnace. Ru.

If these fallen coals are left as they are, they will not only deteriorate the working environment above the furnace, but also cause secondary pollution due to scattering.

For this purpose, rails are provided on the coal loading car that are orthogonal to the coal loading car rails, and a bogie equipped with a dust remover and an exhaust fan is placed on the rail so that it can move freely. An above-furnace cleaner has also been proposed in which a wind fan is connected via a flexible tube or conduit, and a suction nozzle is lowered onto the furnace during coal charging, and a truck is moved to suck up and remove the scattered coal on the furnace. However, due to the shape of the suction nozzle, etc., it is impossible to suction and remove scattered coal near the coal loading car rails.

Therefore, in addition to the furnace cleaner mentioned above, compressed air jet pipes or suction nozzles are fixed to the coal loading car on both sides of the rails, and the coal near the rails can be suctioned and removed from the vicinity of the rails by the suction nozzles of the furnace cleaner. Proposals have been made to move the dust to a specific location using compressed air or to remove it by suction at that location, but this would require a compressor, air receiver, dust remover, exhaust fan, etc. to be installed separately from the furnace cleaner.

This idea was devised in view of the above circumstances, and focused on the fact that the above-mentioned furnace cleaner's exhaust fan operates without stopping during cleaning. The purpose of the present invention is to provide an above-furnace cleaner that moves coal to a position where it can be sucked in by the suction nozzle of an above-furnace knoner.

This invention will be explained below with reference to drawings showing an example of implementation.

In the drawings, 1 is a coal loading car, 2 is a furnace cleaner rail that is perpendicular to the rail 5 of the coal loading car 1, 3 is a coking chamber of a coke oven, 4 is above the coke oven, and 6 is a wheel 31 on the rail 2. 7 is a dust remover installed on the truck 6, and 8 is an exhaust fan 10 and a dust remover 7 installed on the same truck 6.
an outside air intake valve provided in the conduit 9 connecting the
A is a suction nozzle, which is connected to the dust remover 7 via a flexible tube 15 and a bifurcated suction tube 14.

12, 12a is the suction nozzle 11. 11 Compressed air jet nozzles arranged along both longitudinal sides of H,
Exhaust pipe 22, bifurcated jet pipe 16, and flexible pipe 17 of the exhaust fan 10
are connected via.

13 is an electric motor that drives the trolley 6; 18 is a suction nozzle 1;
1, 11 Wheels provided at both ends of a, 19, 19 a
is a bracket hanging down from the truck 6, and the suction nozzles 11, 11a are supported at the lower end of the bracket via parallel links 20, 202 so as to be movable up and down by cylinders 21, 21a.

The exhaust pipe 22 is provided with a support shaft 26 connected to the rod end of the cylinder 24 via a connecting rod 25. An exhaust valve 23 is fixed to the support shaft 26 and is opened and closed by the operation of the cylinder 24.

27, 27a are parallel links 20, 20a and bifurcated suction pipe 1
If the suction nozzles 11, 11a are lowered by operating the cylinders 21, 21a using a connecting rod that connects the support shafts of the switching valves 28, 28a provided near the tips of the switching valves 2, the switching valves 2
8, 28a opens and closes when raised.

29, 29a are brackets 19, 19a and cylinder 2
1,213 is a link mechanism connecting the tip of the rod and the suction nozzle 11, lla, 30 is the machine frame of the coal loading car, 32 is the coal tank, 33 is the coal charging port, 34 is the cover of the coal charging port 33, and 36 is the loading port. 37 is a wheel of the coal loading car 1, 38 is a riser pipe, and 39 is an air collection main pipe.

41 is an opening/closing cylinder for the outside air intake valve 8, 42, 42
a is a switching valve 43 provided near the tip of the bifurcated suction pipe 16;
43 A connecting rod that connects the support shaft of 1 and the parallel links 20, 20a, similar to the switching valves 28 and 281, the cylinder 21
, 213 to lower the suction nozzles 11, 11a, the switching valves 43, 43a are opened, and when raised, the switching valves 43, 43a are closed.

Since the structure is as described above, when the coal charging car 1 stops at a predetermined coal charging position in the corresponding carbonization chamber 3 in order to charge coal into the carbonization chamber 3 of the coke oven, the suction nozzles 11, 11 3 move from the corresponding carbonization chamber. Since it is located directly above the carbonization chamber 3 in front of the furnace chamber 5, the electric motor 13 is started to move the trolley 6 to the opposite end of the rising pipe 38, and then the exhaust fan 10 is started and the cylinder 21 is operated. When the suction nozzle 11 is lowered to the top 4 of the coke oven, the suction nozzle 11 is located at the top left end of the coke oven,
The switching valve 28 of the bifurcated suction pipe 14 is opened by the movement of the parallel link 20 and the connecting rod 27, and the outside air intake valve 8 is closed.
Since the exhaust valve 23 of the exhaust pipe 22 is open, the suction nozzle 11 starts suctioning.

Next, when the electric motor 13 is driven to move the cart 6 toward the riser pipe 38, the suction nozzle 11 is moved along with the cart 6 to the furnace 4.
It moves while sucking up scattered coal, dust, etc.

When the suction nozzle 11 comes just in front of the rail 5, it is detected by a limit switch (not shown), etc., and the electric motor 13 is stopped, and the cylinder 24. 41 to close the exhaust valve 23, open the outside air intake valve 8 to stop suction from the suction nozzle 11, and at the same time suck the air sucked from the outside air intake valve 8 portion for a predetermined period of time from the compressed air jet nozzle 12. The liquid is ejected to both sides of the nozzle 11 (note that the switching valve 43 is open when the suction nozzle 11 is lowered).

) Coal, dust, etc. near the rail 5 are blown away to the opposite side through the gap formed between the pedestals at the bottom of the rail 5, or
Remove by blowing away to a farther position.

After a predetermined period of time has elapsed, the cylinder 21 is actuated to raise the suction nozzle 11, and then the electric motor 13 is actuated to move the cart 6 a little, and when the suction nozzle 11 crosses the rail 5, the electric motor 13 is stopped again. The cylinder 21 is operated to lower the suction nozzle 11 onto the furnace top 4.

When the suction nozzle 11 descends, the switching valves 43 and 28, which were closed when the suction nozzle 11 ascended, open.

When the switching valve 43 opens, air is again ejected from the compressed air ejection nozzle 12 to both sides of the suction nozzle 11 for a predetermined period of time,
Coal, dust, etc. near the rail 5 are blown away and removed, and after a predetermined period of time has elapsed, the cylinders 24 and 41 are operated to close the exhaust valve 2.
3, close the outside air intake valve 8, and open the suction nozzle 11 again.
The electric motor 13 is driven to move the trolley 6 toward the rising pipe 38, and suction of coal and dust is continued.

In this way, when the cart 6 reaches the end of the rail 2 on the rising pipe 38 side, the electric motor 13 is stopped, the cylinder 21 is operated to raise the suction nozzle 11, and the cylinder 21a is operated to lower the suction nozzle 11a onto the furnace. If you do so, the suction nozzle 11
a is located near the riser pipe 38, and the switching valves 28, 43
is closed, the switching valves 28a and 43a are opened, and the suction nozzle 1
1 A suction is started.

Next, the electric motor 13 is driven to move the cart 6 to the opposite side of the rising pipe 38 in the opposite direction to that described above, and the same operation as described above is repeated. When the cart 6 reaches the end of the rail 2 on the opposite side of the rising pipe 38, This means that the suction nozzle 11 or 11a has passed along the entire length of the carbonization chamber 3 in the longitudinal direction, and air is ejected from the compressed air jet nozzle 12 or 12a on both sides of the rail 5. , dust, etc. are removed by suction.

According to this invention, as mentioned above, a separate compressor,
Dust that accumulates near both sides of the coal car running rails can be suctioned and removed without installing an air receiver, etc. by switching the valve on the intake and exhaust side of the exhaust fan of the furnace cleaner, allowing work on the coke oven. This significantly improves the environment, prevents secondary pollution caused by the scattering of accumulated dust, and improves the efficiency of furnace operations, resulting in great effects.

[Brief explanation of the drawing]

Figure 1 is a schematic diagram showing the installed state of the furnace cleaner of this invention, Figure 2 is a front view of the cleaner, Figure 3 is a plan view of the cleaner, and Figure 4 is the direction A-A in Figure 3. FIG. 5 is an enlarged front view showing the exhaust valve used in this invention. In the figure, 1... Coal loading car, 2, 5... Rail, 3... Carbonization chamber, 4... Furnace top, 6... Dolly, 7... Dust remover, 8
...Outside air intake valve, 10...Exhaust fan, 11, 11
a... Suction nozzle, 12, 12a... Compressed air jet nozzle, 16... Bifurcated jet pipe, 19, 19a...
Bracket l-, 20, 20 a-...Parallel link, 2
1, 21 a, 24. 41... cylinder, 22
...Exhaust pipe, 23...Exhaust valve, 27, 27 1.
・・Connecting rod, 28, 28 a, 43, 43 a・
...Switching valve.

Claims (1)

[Scope of utility model registration request] A coke oven coal loading car is equipped with rails that are orthogonal to the coal loading car rails, and a trolley is placed on it so that it can run freely. In a furnace cleaner having a suction nozzle connected via a flexible tube,
An outside air intake valve is installed on the intake side of the exhaust fan, and an exhaust valve is installed on the exhaust side.
Compressed air jet nozzles are arranged on both sides of the suction nozzle and connected to the exhaust side of the exhaust fan via a bifurcated jet pipe and a flexible pipe, and the outside air intake valve is opened near the coal loading car rails, and the exhaust valve is A coke oven furnace cleaner characterized by closing and blowing out air from a compressed air blowing nozzle.