JPS601908B2 - Interlocking control method and device for opening/closing body and switching valve in coke oven riser pipe - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and device for interlocking control of an opening/closing body and a switching valve in a coke oven riser pipe, and the invention relates to a method and device for interlocking control of an opening/closing body and a switching valve in a coke oven riser pipe. The present invention relates to a motion control method and device for switching a valve to a high-pressure or low-pressure ammonium water line by operating a push bar provided on a front moving vehicle on the riser side of a coke oven.

Generally, coke production is carried out by sucking the gas generated during coal carbonization into the main collecting pipe through riser pipes and pent pipes installed at the top of each carbonization chamber. The cutting damper is closed and the riser pipe cover is opened to evacuate the interior of the coking chamber, and then coke is pushed out of the coking chamber using a coke extruder and collected in a fire extinguisher.

At approximately the same time as this coke discharge operation, coal is charged from a coal loading car running over the coke oven into the carbonization chambers which are several units apart and from which coke has been previously discharged, and carbonization of the coal is performed again. Normally, during this coal charging work, the riser canopy is closed, the green cutting damper is opened, and the high-pressure ammonium water line of the ammonium water switching valve is switched to inject high-pressure ammonium water into the main collector pipe. The coal dust generated during coal charging is sucked into the main collecting pipe. The opening/closing work of the canopy and edge damper during coal loading, as well as the switching of the low water switching valve to the high pressure line, have been mechanized by remote control. The automatic opening/closing mechanism of the automatic opening/closing mechanism and the automatic switching mechanism of the ammonium water switching valve are installed separately, and when the coal loading car is installed in front of the designated carbonization chamber, the sides of each of the above automatic machines are driven prior to coal loading, and the lid is closed. In some cases, the green cutting damper was opened and the ammonium water switching valve was switched to the high pressure line.

However, the work of discharging coke and the work of loading coke into the previously discharged carbonization chamber, which is several units away from this discharged carbonization chamber, involve the use of coke extrusion rods and coke equalizers installed at both ends of the extruder. This process is carried out at the same time using a coke rod, and this process is repeated one after another to discharge coke and charge coal.The coal loading car is fully loaded with coal each time it is loaded, and then goes into the carbonization chamber. After closing the riser pipe canopy, opening the green cutting damper, and switching the high pressure line of the low water switching valve, the coal is charged and the coke equalization of the extruder, which is waiting at the designated location, is carried out. While the coal in the carbonization chamber was leveled using a mixing rod, the carbonized coke from several carbonization chambers separated by coke extrusion rods was discharged at the same time.

Therefore, compared to the time required for the extruder to be moved and set in place for the next coke discharge and coal charging operation, a coal-loading car full of coal is placed on a given coking chamber. Therefore, as in the past, an automatic opening/closing mechanism for the riser pipe canopy and edge damper, as well as an automatic switching mechanism for the ammonium water switching valve to the high-pressure ammonium water line, were installed on the coal loading car. The method of driving the above-mentioned mechanism after installing the coal loading car during charging has a problem in that the operating efficiency of the coke manufacturing operation is reduced.

The present invention has been made in view of the above points, and it is possible to close the riser canopy, open the edge cutting damper, and switch the ammonium water switching valve to the high-pressure ammonium water line on the coke oven riser side during coal loading. This is done in conjunction with the operation from the push bar installed on the moving car in front of the furnace, and by making it possible to charge coal immediately after the coal loading car arrives at the designated location, it improves the operating efficiency of coke manufacturing work. This is what I did. The basic structure of the interlocking control method of the opening/closing body and the switching valve in the coke oven riser pipe according to the present invention is that the coke oven riser pipe cover, green damper, and anhydrous water switching valve are operated by air cylinders installed respectively. Among the air switching cocks provided for operating each air cylinder during coal bagging work, the air switching cock for operating the air cylinder of the ammonium water switching valve is installed on the coke oven riser pipe side. The air cylinder is operated by switching by the forward movement of a push bar installed in the front moving vehicle of the furnace, and then, in conjunction with the operation of this air cylinder, all remaining air switching cocks are switched to operate the air cylinder.
Close the cover connected to each air cylinder, open the edge cutting damper, and switch from the low-pressure line to the high-pressure line for cheap water. When the coal charging is completed, the push bar moves backward to switch from the high-pressure line to the low-pressure line for cheap water. The basic structure of the interlocking control device according to the present invention includes a coke oven riser pipe opening/closing lever, a green gong damper opening/closing lever, and an anhydrous water switching lever. Air cylinders are installed at the base of each valve, and each air cylinder is delivered to each air switching cock connected to the pressure line through two pipes, and among these air switching cocks, the ammonium water switching cock is The air switching cock for operating the air cylinder of the valve is installed at the upper end of the oven on the riser pipe side of the coke oven.On the other hand, the air switching cock installed at the upper end of the furnace is installed in the front moving vehicle for forward and backward operation. When the extrusion bar moves forward, the remaining air switching cocks are switched via the Renkin switching mechanism linked to the air cylinder of the anhydrous switching valve, which is activated by switching this air switching cock. Activate the air cylinder to close the end cover, open the edge cutting damper, and switch from the low pressure line to the high pressure line for cheap water, and also to switch from the high pressure line to the low pressure line for cheap water when the extrusion bar retreats. It is characterized by the following.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention in which a coke extruder is used as a furnace front moving vehicle will be described in detail with reference to the accompanying drawings.

FIG. 1 shows an outline of the interlocking control device according to the present invention, and shows the base end of the coke oven riser pipe 2's head cover opening/closing lever 3, the green cutter damper opening/closing lever 5 of the collecting main pipe 4, and the cheap water switching valve 6. Air cylinders (hereinafter referred to as the canopy opening/closing cylinder 7, the enko damper opening/closing cylinder 8, and the anhydrous water switching cylinder 9) are installed in each section, and the canopy opening/closing cylinder is installed on the side wall of the rising pipe 2 to open and close the lid 10 and green cut damper 11. Air switching cocks (hereinafter referred to as the hood switching cock 12 and green cutting damper switching cock 13) for operating the cylinder 7 and the edge cutting damper opening/closing cylinder 8, respectively, are provided at the upper end of the furnace on the riser pipe side. Air switching cocks (hereinafter referred to as ammonium water switching cocks 14) for operating the ammonium water switching cylinders 9 of the switching valves 6 are provided.

15 is a coke extruder, 16 is the above-mentioned ammonium water switching cock 14
It is an extrusion bar for changing the function.

FIG. 2 shows a first embodiment of the present invention, in which the canopy opening/closing cock 12 and the edge cutting damper opening/closing cock 13 are switched by a link mechanism linked by the operation of the ammonium water switching cylinder 9. be. To explain the motion control device according to this embodiment in detail, the coke oven 1 has an ammonium water switching cock 14 at the upper end of the furnace on the riser pipe side;
A control lever 17 for switching is attached. The control lever 17 is formed into a substantially fishing shape, and has a fixed arm 2 attached to the upper end of the furnace so that the vertical arm 18 and the horizontal arm 19 can rotate.
It is pivoted by 0. The tip of the lower end of the vertical arm 18 comes into contact with the forward movement of the extrusion bar 16 attached to the operating end of the coke extruder 15, and the tip of the horizontal arm 19 is connected to the ammonium water switch of the ammonium water switching cock 14. A locking piece 22 that sandwiches the lever 21 is provided. Push bar 16 is actuated by a hydraulic cylinder (not shown) driven by remote control from coke pusher 15 and presses against longitudinal arm 18 of control lever 17 when actuated forward. This operation causes the horizontal arm 19 of the control lever 17 to rotate upward, causing the ammonium water switching lever 21 to rotate upward, thereby switching the ammonium water switching cock 14. Furthermore, between the base of the side arm 19 and the fixed arm 20, in a steady state, the side arm 19
A spring 23 is provided that biases the tip of the
The mechanism is such that when the push bar 16 moves backward to release the pressure on the control lever 17, the restoring force of the spring 23 returns the control lever 17 and the ammonium water switching lever 21 to their original states. . In this case, depending on the installation conditions of the device, a cylinder drive device (not shown) having a mechanism for pressing the side arm 19 toward the coke oven 1 may be used instead of the spring 23. As shown in FIGS. 2 and 3, the ammonium water switching cock 14 switches the cock chamber A or B to switch the introduced air by switching the ammonium water switching lever 21 up or down.
One end is connected to the fresh air line 24, and the other end is connected to the ammonium water switching cylinder 9 through two pipes 25.

In this embodiment, the ammonium water switching cylinder 9 is installed at an appropriate position on the side wall of the rising pipe, and a link mechanism for switching the ammonium water switching valve 6 is connected to the tip of the rod 26 that reciprocates in the vertical direction. has been done. The ammonium water switching valve 6 switches the ammonium water line of an ammonium water supply source (not shown) to a high-pressure ammonium water line or a low-pressure ammonium water line by switching a cock shaft 27. Lever 2
8. The connecting rod 29 and the auxiliary switching lever 301 constitute a parallel link, and one end of the auxiliary switching lever 30 is pivotally attached to the tip of the rod 26 to constitute a link mechanism. Therefore, the link mechanism is actuated by the vertical movement of the rod 26, and the ammonium water switching valve 6 is switched by rotating the cock shaft 27. Further, below the ammonium water switching cylinder 9, a lid switching cock 12 and a green cutting damper opening/closing cock 13 are arranged vertically in parallel on the side wall of the rising pipe.
At the upper end of the switching levers 31 and 32 of the canopy opening/closing cock 12 and the edge cutting damper opening/closing cock 13, there is a switching projection 3 of an operating punch 33 connected to the tip of the rod 26.
4 and 35 are in contact with each other.

These protrusions 34 and 35 are provided in the middle of the working village 33, and the upper and lower sides of these protrusions 34 and 35 are connected to the guide part 3.
6 and 37, each switching lever 31
, 32 is prevented. In addition, canopy opening/closing cock 12
The edge-cutting damper opening/closing cock 13 has substantially the same structure as the ammonium water switching cock 14, and the introduced air is switched by vertically switching the edge-cutting damper switching lever 31 and the edge-cutting damper switching lever 32, respectively.

The canopy opening/closing cylinder 7, which is connected to the canopy opening/closing cock 12 by two pipes 25', is provided at the lower end base of the canopy opening/closing lever 3, and the tip of the rod 38 extending upward is connected to the canopy opening/closing cock 12. It is in contact with the lower edge of the opening/closing lever 3.

In addition, the green cutting damper opening/closing cylinder 8, which is connected to the edge cutting damper opening/closing cock 13 by two other pipes 25'', is provided at the lower end base of the green cutting damper opening/closing lever 5, and extends upward. The tip of the rod 39 is in contact with the lower edge of the green cutter damper opening/closing lever 5.The extension distance of the rods 38, 39, 26 of each cylinder 7, 8, 9 is the same as that of each switching cock. The distance is set to allow smooth switching operation or opening/closing operation of the opening/closing lever.

Therefore, as shown in FIG. 2, the interlocking control device configured as in the above embodiment changes the state from the pre-operation state indicated by the solid line or dotted line to the post-operation state indicated by the dashed-dotted line, that is, the ammonium water switching valve. In order to switch to the high-pressure ammonium water line 6, close the riser pipe cover 10, and open the edge damper 11 in conjunction with each other, first, install the coke extruder 15 in a predetermined position, and then open the extrusion bar 16. It is operated forward, and the control lever 17 that is in contact with this push-out bar 16 is rotated.

At this time, the ammonium water switching lever 21 rotates in the direction of the arrow in the figure, and the ammonium water switching cock 14 is switched. By this switching, the pressure line 24 is connected to the anhydrous cylinder 9.
Air is supplied to move the rod 26 downward. Furthermore, along with this movement, the link mechanism of the ammonium water switching valve 6 is activated to switch the ammonium water switching valve 6 to the high-pressure ammonium water line,
The high-pressure ammonium water supplied by the ammonium water supply pipe 401 is injected into the pent pipe from the ammonium water nozzle 42 at the upper part of the pent pipe 41, and the operating pestle 33, which moves downward by the operation of the link mechanism, Each switching lever 31, 3 of the switching cock 12 and edge cutting damper switching cock 13
2 in the direction of the arrow to switch the end cover switching cock 12 and the green cutting damper switching cock 13. By this switching, air is introduced into the end cover opening/closing cylinder 7 and the edge cutting damper opening/closing cylinder 8, the rods 38 and 39 are extended, and the end cover opening/closing lever 3 and the green cutting damper opening/closing lever 5 are extended.
is pushed up and the end cover 10 is pushed down to close the upper end opening of the rising pipe 2, and at the same time, the edge cutting damper 11 is rotated downward to open the entrance gate of the main collecting pipe 4. In this way, the preparation for charging coal is completed, and the coal is charged into the carbonization chamber from a coal loading car (not shown) placed on the coke oven.

Then, dust generated during coal charging is sucked into the main collecting pipe 4 using high-pressure ammonium water. Next, when the coal charging operation is completed, the push bar 16 is moved backward by remote control, and the restoring force of the spring 23 returns the control lever 17 to its original state. The ammonium water switching bar 21 is rotated to the lower position in conjunction with this, and the ammonium water switching cock 14 is switched. By this switching, air is supplied to the ammonium water switching cylinder 9 in the opposite direction to that described above, and as the rod 26 contracts, the ammonium water switching valve 6 is switched to the low-pressure ammonium water line. At that time, the operation village 33 also moves upward, but the lid opening/closing cock 12
Since the switching levers 31 and 32 of the edge cutting damper opening/closing cock 13 do not come into contact with the upwardly moving protrusions 34 and 35, the carbonization of coal is carried out while being held in that state. FIG. 4 shows another embodiment of the present invention, in which switching of the lid opening/closing cock 12 and the edge cutting damper opening/closing cock 13 is performed by switching the air supplied from the ammonium water switching cock 14 into the ammonium water switching cylinder 9. A part of the system is branched off, and the pilot pressure is used to perform the operation.

To explain the above mechanism based on FIG. 4, 14, 12 and 13 are an ammonium water switching cock, a canopy opening/closing cock, and an edge damper opening/closing cock, respectively, and one end of each cock is connected to the pressure line 24. and the other end is connected to two pipes 2 respectively.
5, 25', and 25'' are connected to the ammonium water switching cylinder 9, the canopy opening/closing cylinder 7, and the edge cutting damper opening/closing cylinder 8, respectively.

The end cover opening/closing cock 12 and edge cutting damper opening/closing cock 13 in this embodiment are configured to switch the cocks by operating pistons 48, 43 which move with the switching lever in the first embodiment and are operated by air. and
These pistons 48 and 43 constitute a motion switching mechanism by a pilot pipe 44 disposed between the ammonium water switching cock 14 and the midway part of the air introduction side piping 25A passed through the ammonium water switching cylinder 9. There is. The locations of the air cocks and air cylinders and the structure of the ammonium water switching valve are the same as in the first embodiment, and the ammonium water switching valve is activated by the forward movement of the extrusion bar from the coke extruder. The mechanism for switching is also the same as in the first embodiment. Therefore, in order to use the interlocking control device consisting of the above mechanism to switch the anhydrous switching valve and open and close the lid and green damper,
First, the ammonium water switching cock 14 is moved in the direction of the arrow by the push bar to connect the cock chamber A.

At this time, the air from the pressure line 24 is guided to the piping 25A side and supplied to the ammonium water switching cylinder 9, and the rod 26
Stretch. Note that the air discharged from the ammonium water switching cylinder 9 is guided to a pipe 258 and exhausted to the outside. Also, piping 25
A part of the air guided into A is introduced into the pilot pipe 44, and the pilot pressure of the air moves the lid switching cock 12 and the edge damper switching cock 13 in the direction of the arrow, respectively, and connects the cock chamber A. do. At this time,
Air from the pressure line 24 is connected to piping 25'A, 25''
A and supplied to the lid opening/closing cylinder 7 and the green cutting damper opening/closing 3 cylinder 8, respectively, to extend the rods 38 and 39, respectively. In addition, in the same machine as above, the exhaust air from each cylinder 7, 8 is guided to piping 25'B, 25''B, respectively, and exhausted to the outside.In addition, the switching of the ammonium water switching valve by the operation of each cylinder described above is Also, the opening and closing of the riser canopy and green damper are performed by the same means as in the first embodiment.

Next, when coal loading is completed and the coke extruder 15 is operated backward, the anhydrous water change cock 14 is returned to its original state, that is, the cock chamber entrance is connected, air is introduced into the piping 25B side, and the rod 26 is reduced, and the ammonium water switching valve is switched to the low-pressure ammonium water line, but the lid opening/closing cock 12 and the engyo damper opening/closing cock 13 are kept as they are. In addition, when manually opening and closing the cover 10 and the edge-cutting damper 11 after coal carbonization, etc., the switching levers 31 and 32 of the cover opening/closing cock 12 and the edge-cutting damper opening/closing cock 13 are used.
It can be opened and closed by switching the air pressure line 24 to the opening side of the opening/closing cock.

In addition, if all of these switches are performed manually as in the past, the switch levers 31 and 32 are switched respectively to switch the cock 12.
, 13 are set at the neutral position, and the air supplied to the lid opening/closing cylinder 7 and green cutting damper opening/closing cylinder 8 are brought into an equilibrium state. Manual operation village 45,4
By lightly pulling 6, the end cover 10 is opened and the edge cutting damper 11 is closed. In addition, when manually switching the ammonium water line of the ammonium water switching valve 6 at any time, move the switching lever 49 of J to the manual switching valve provided in the middle of the two pipes 25 of the ammonium water switching cylinder 9. This can be easily done by adjusting the position and bringing the air inside the cylinder 9 into a balanced state. In the above embodiment, after coal carbonization, when opening the riser pipe and closing the edge cutting damper, the switching valves of the air cylinders attached to each are manually operated, or each air cylinder is closed. Although we have described the case where the air in the cylinder is balanced and operated manually, it is also possible to separately control the opening of the lid and the closing of the edge cutting damper after the above-mentioned carbonization based on the same technical idea as the present invention. However, in the present invention, the above-mentioned operation after coal carbonization is not limited to manual operation.

In this embodiment, the furnace moving vehicle is an extruder, but the present invention is not limited to this, and other furnace moving vehicles such as a guide vehicle may be used.

As explained above, according to the interlocking control method and device for the opening/closing body and switching valve in a coke oven riser pipe according to the present invention, the riser pipe lid is closed, the edge cutter damper is opened, and the high pressure of the ammonium water switching valve is controlled. Alternatively, switching to the low-pressure ammonium water line was made possible by operating a push bar installed on the front moving car on the coke oven riser pipe side, so the coal loading car fully loaded with coal was placed in a predetermined position during coal loading. Coal can be charged immediately after the completion of the process, which shortens the waiting time of the coke oven moving vehicle in front of the oven compared to the conventional case of relying on the operation from the coal loading vehicle, and the coke manufacturing operation can be started quickly. Efficiency can be improved.

Furthermore, according to the interlocking control method and device of the present invention,
Since it can be operated continuously with a single operation from the coke oven front moving vehicle, it is easier to operate than in the case where it is operated individually like in the case of a sub-cooker, and the equipment is simplified. It is possible to further shorten the operation time.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram of an interlocking control device according to the present invention, and FIG.
FIG. 3 is an explanatory diagram showing one embodiment of the present invention, FIG. 3 is an explanatory diagram of an air switching cock, and FIG. 4 is an explanatory diagram showing another embodiment of the present invention using a pneumatic circuit. 2... Rising pipe, 3... End cover opening/closing lever, 5... Midori-kiri damper opening/closing lever, 6...
Anhydrous water switching valve, 7... End cover opening/closing cylinder, 8...
... Edge cutting damper opening/closing cylinder, 9... Anhydrous water switching cylinder, 10... End lid, 11...
...Midori-kiri damper, 12...Canopy opening/closing cock,
13... Edge cutting damper opening/closing cock, 14...
... Anhydrous water switching cock, 15 ... Coke extruder,
16... Extrusion bar, 24... Pressure line, 25, 25'25''... Piping, 44...
Pilot piping. Figure 1 Figure 3 Figure 2 4 boxes

Claims (1)

[Claims] 1. A method for opening, closing, or switching the canopy, edge damper, and ammonium water switching valve of a coke oven riser pipe by operating air cylinders installed in each of them during coal charging work. Of the air switching sockets provided for operating the air cylinder, the air switching socket for operating the air cylinder of the ammonium water switching valve is switched by the forward movement of the extrusion lever installed on the furnace front moving vehicle on the coke oven riser pipe side. By activating the air cylinder, and then switching the remaining air switch in conjunction with the operation of the air cylinder and activating the air cylinder, the canopy can be closed, the edge-cutting damper can be opened, and the low pressure line for low-pressure water can be removed. An opening/closing body and a switch in a coke oven riser pipe, characterized in that the switch is made to the high pressure line, and when the coal loading is completed, the push lever is operated backward to switch from the high pressure line to the low pressure line for cheap water. Interlocking control method for valves. 2. Air cylinders are installed at the base of the canopy opening/closing lever, edge cutting damper opening/closing lever, and ammonium water switching valve of the coke oven riser tube, and each air cylinder is connected to each air line connected to the pressure line by two pipes. Among these air switching sockets, the air switching socket for operating the air cylinder of the anhydrous water switching valve is installed at the upper end of the furnace on the riser pipe side of the coke oven. An extrusion lever is installed that switches the air switching knob installed at the upper end of the furnace by moving forward and backward, and when the extrusion lever moves forward, it is linked to the air cylinder of the ammonium water switching valve, which is operated by switching the air switching knob. The remaining air switching units are switched through the interlocking switching mechanism, and the corresponding air cylinders are operated to close the canopy, open the edge damper, and switch from the low-pressure line to the high-pressure line for ammonium water, and at the same time, the extrusion lever retreats. An interlocking control device for an opening/closing body and a switching valve in a riser pipe of a coke oven, characterized in that the switching from a high-pressure line to a low-pressure line for ammonium water is performed at times. 3. The interlocking switching mechanism is a linkage mechanism that operates in conjunction with the operation of an air cylinder installed at the base of the ammonium water switching valve, or a pilot that guides a portion of the air supplied to the air cylinder to the remaining air switching valve. 3. An interlock control device for an opening/closing body and a switching valve in a coke oven riser pipe according to claim 2, characterized in that the device is constituted by piping.