JP2563589Y2 - Coke oven riser ignition device and ignition confirmation device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ignition device and an ignition confirmation device for igniting gas released from the top of a riser of a coke oven when the riser is cut off.

[0002]

2. Description of the Related Art In a coke oven, coke that has been carbonized is extruded from a carbonization chamber to a fire extinguishing car or coke bucket car by an extruder through a coke guide car, and is subjected to wet or dry fire extinguishing. Into the carbonization chamber from which the coke that has been carbonized has been extruded, charged coal is charged via a coal loading port from a coal-charging vehicle that travels on the furnace and carbonized.

The coke oven gas generated at the time of carbonization in the coke oven is guided to a dry main from a riser at the end of the coking chamber through a bend pipe, and is subjected to a gas purification process in a later step. A canopy (top cover) is provided at the top of the riser, and a disc valve is provided at a connection between the bend pipe and the dry main. When the canopy is closed and the disc valve is opened, the coking chamber and the dry main are connected, and the gas in the coking chamber is introduced into the dry main. In addition, if the plate valve is closed and the canopy is opened, the carbonization chamber and the dry main are cut off,
Gas in the coking chamber is released to the atmosphere from the top of the riser.

[0004] Normally, the cutting operation of the coking chamber and the dry main is performed by taking out the coke kiln after the coke has been burnt down.
Although it is performed about 0 minutes before, since the gas remaining in the coking chamber after being cut off from the dry main is released without burning from the top of the riser, the coal opening is opened to ignite and burn. In addition, the joint work between the carbonization chamber and the dry main is performed before coal charging, and the suction amount of the gas in the furnace is adjusted by switching the low-pressure water from the low pressure to the high pressure. Conventionally, the edging and splicing operations have been manually operated by workers, but since they are heavy-strength operations on a coke oven, improvements are desired.

[0005] As a method for this purpose, there is known a method in which remote control is automatically performed by using cylinders provided individually for opening and closing a canopy, a plate valve, and switching between safe water for each riser pipe. In addition, as an igniter for the effluent gas flowing out from the top of the riser at the time of edge cutting, a zone plate that forms an arc-shaped ignition zone in the circumferential direction along the outer periphery of the canopy of the riser is arranged, and the zone plate In a device equipped with a spark plug (Japanese Utility Model Laid-Open No. 57-35346), a gas catcher is provided at the upper part of a riser tube, and in a coke oven riser ignition device in which a spark plug is fixed to the gas catcher, the gas catcher emits gas. A gas holder chamber in which a portion of the gas is guided to store a gas and a gas ejection portion is formed at an upper portion thereof; an opening end is provided near the gas ejection portion; A pipe means having an air introduction mechanism formed therein, and an extended storage covering the gas ejection portion for mixing and flame holding of the released gas and air. An apparatus provided with a plate means (Japanese Utility Model Application Laid-Open No. 1-87143), a pair of ignition plugs supported bifurcated at the tip of a traversing truck provided to be traversable on a coal truck or towing truck. A device provided with an ignition mechanism that can move forward and backward to the vicinity of both sides of the canopy
No. 32975) has been proposed.

[0006] In addition, the confirmation of ignition of outflow gas from the riser is as follows.
A method has been implemented in which an industrial television camera is installed on a furnace or in the vicinity of a riser and remotely monitored by a monitor television provided in a monitor room.

[0007]

[Problem to be solved by the present invention]
The ignition device disclosed in Japanese Patent Publication No. 346 and Japanese Utility Model Laid-Open Publication No. 1-87143 requires a gas catcher and a spark plug to be provided for each riser pipe, which not only increases the equipment cost but also causes the spark plug to be exposed to a flame. It has the drawback that the life is short due to heat degradation and carbon adhesion, and furthermore, because of ignition at the top side of the riser tube, non-ignition easily occurs due to the influence of wind. In addition, Japanese Patent Application Laid-Open No.
The ignition device disclosed in Japanese Patent Application Laid-Open No. 57-3534 is provided with a pair of ignition plugs which can move forward and backward to near both sides of a canopy of a riser on a trolley of a coal-equipped vehicle.
No. 6 and Japanese Utility Model Application Laid-Open No. 1-87143 can solve the problem of installing the ignition device for each riser. However, since ignition occurs at the top side of the riser, the disadvantage that non-ignition easily occurs is somewhat. Although improved, non-ignition occurs with respect to the direction of the wind passing through the pair of ignition plugs. In addition, since this ignition device does not have an ignition detection mechanism, it has a disadvantage that unburned gas is released into the atmosphere until the inlet is opened for cleaning the riser pipe. Further, remote ignition monitoring using a monitor television is extremely poor in reliability, and an automatic system cannot be constructed.

An object of the present invention is to provide a coke oven riser ignition device and an ignition confirmation device which can surely ignite effluent gas without being affected by wind and can confirm ignition with high accuracy.

[0009]

Means for Solving the Problems The inventors of the present invention have conducted various tests and studies to achieve the above object. As a result, instead of igniting at the top of the riser tube, an arm that is fixedly installed on a trolley that is movable in parallel with the riser tube row and moves forward or backward or rotates to the center of the riser tube top is provided. By providing an air inlet and an ignition plug inside the arm above the gas concentrator, it is possible to reliably ignite the effluent gas without being affected by wind.Furthermore, a flame current electrode and a ground electrode are provided at the end of the arm. The inventors have found that ignition can be confirmed by detecting the flame current between the flame current electrode and the ground electrode, and arrived at the present invention.

That is, the present invention is directed to a coke oven riser ignition device for igniting a gas flowing out from the top of a coke oven riser by a spark plug, and moves to a center of the top of the riser on a movable carriage parallel to the riser row. A possible arm is provided, a fin-shaped gas concentrator and an air inlet are provided at the lower end of the arm, a gas outlet is provided at the upper end of the arm, and a spark plug is inserted on the gas concentrator at the end of the arm. And a coke oven riser ignition device.

Further, in a coke oven riser ignition device for igniting a gas flowing out from the top of the coke oven riser by an ignition plug, an arm movable to a center of the top of the riser on a carriage movable parallel to the row of risers. A gas concentrator and an air inlet at the lower end of the arm, a gas outlet at the upper end of the arm, and a spark plug inserted over the gas concentrator at the end of the arm. A coke oven riser tube ignition confirmation device, wherein an ignition detector comprising a flame electrode is provided on an upper portion or a side portion.

[0012]

In the present invention, an arm whose tip can move to the center of the top of the riser is provided on a bogie that can move in parallel with the riser row, and a gas concentrator and an air inlet are formed below the arm. A gas outlet is provided at the upper end of the arm, and a spark plug is inserted above the gas concentrator at the end of the arm, so that the ignition can be approached to the center of the top of the riser tube. Since the gas collected in the above flows together with the air from the air inlet, it is possible to reliably ignite the outflow gas without being affected by the wind. The ignition device of the present invention is mounted on a trolley movable in parallel to the riser row, approaches the center of the top of the riser only at the time of ignition, and separates from the center of the top of the riser when ignition is completed. Thus, deterioration of the spark plug due to the flame and adhesion of carbon to the spark plug can be prevented.

Further, in the present invention, an arm whose tip can move to the center of the top of the riser is provided on a trolley movable in parallel with the riser row, and a fin-shaped gas concentrator and air are provided at the lower end of the arm. An inlet was provided, a gas outlet was provided at the upper end of the arm, a spark plug was inserted above the gas concentrator at the end of the arm, and an ignition detector consisting of a flame electrode was provided at the upper or side of the gas outlet at the end of the arm. The ignition of the gas by the spark plug can be automatically detected by the flame current detection by the ignition detector consisting of the flame electrode provided on the top or side of the gas outlet hole at the tip of the arm, and the ignition plug can be quickly detected from the flame. It is possible to evacuate and to build an automated system for coal-charging vehicles.

[0014] In the present invention, the truck movable in parallel with the riser tube row includes a charcoal truck running on a coke oven, a towing truck mounted on the coal charcoal truck, and a truck freely mounted on the rail of the coal charcoal truck separately from the coal charcoal truck. A trolley that is placed or a trolley that is provided on the dry main side so as to be able to run parallel to the riser row can be considered,
The use of coal-powered vehicles is recommended in terms of equipment costs. Also,
The movement of the tip of the arm to the center of the top of the riser can be achieved by tilting and expanding and contracting the arm pivotally mounted on the carriage, or the arm can be provided so as to be able to advance and retreat horizontally. In addition, the cutting work of the riser pipe and the dry main related to ignition is performed by the method of using the cylinder installed for each riser pipe or the cylinder installed on the coal-fueled car. It is necessary to have a switch and the like. As the ignition detector in this invention, a flame current method consisting of a flame electrode and an earth electrode, a contact temperature measurement method such as a thermocouple method that directly contacts a flame, a radiation thermometer method, an infrared CCD method, and a flame are specific. Any method such as a non-contact temperature measurement method such as a double spectrum method for detecting the fluctuation of ultraviolet rays and infrared rays with high sensitivity may be used, but it is convenient to use a flame current method including a flame electrode and an earth electrode.

[0015]

Embodiment 1 The details of a coke oven riser ignition device of the present invention will be described below with reference to FIGS. 1 to 6 showing an embodiment. FIG. 1 is an overall plan view of a coke oven riser ignition device according to the present invention mounted on a coal car, FIG. 2 is an overall side view thereof, and FIG. 3 is a partially cutaway ignition device and a main part of an ignition confirmation device. 4 is an AA view of FIG. 3, FIG. 5 is an explanatory view showing the principle of the ignition confirmation device, and FIG. 6 is a control system diagram of riser pipe automatic ignition and ignition confirmation work. 1 to 5,
1 is a frame of a coal-equipped car, 2 is a riser erected in each coking room, 3
Is a canopy provided at the top of the riser 2, and 4 is a bend pipe connected to the riser 2, which is connected to a dry main (not shown) via a disc valve, closes the canopy 3 and opens a disc valve (not shown) to ascend. If the pipe 2 and the dry main (not shown) are spliced, coke oven gas generated from the carbonization chamber is introduced into the dry main via the rising pipe 2 and the bend pipe 4.

Reference numeral 5 denotes an ignition device body pivotally mounted on a support frame 6 provided at the end of the riser pipe 2 of the machine frame 1 of the coal-carrying truck. When the cylinder 7 is operated, the ignition device is tilted from vertical to horizontal with the pivot as a fulcrum. Turn over. The ignition device main body 5 has an arm 8 whose tip can move to the center of the top by avoiding the position of the canopy 3 in which the riser tube 2 is opened by tilting, and a gas converging in a fin-shape provided at the lower end of the arm 8 with the top opened. Device 9, an air inlet 10 provided in the vicinity of the gas concentrator 9, and a gas outlet 1 provided in the upper end of the arm.
1 and a spark plug 12 inserted on the gas converging device 9 at the tip of the arm 8, a terminal box 13 is connected to the rear end of the arm 8, a high-voltage power cable 14 is connected to the terminal box 13, and a high-voltage power cable When a high voltage is applied to the spark plug 12 via the spark plug 14, the spark plug 12 is configured to perform a spark discharge at the upper part of the gas converging device 9. Reference numeral 15 denotes an ignition detector attached to a bracket 16 provided on the upper portion of the arm 8. As shown in FIG. 5, when the flame current electrode 17 comes into contact with the flame, a few μA of the flame between the flame current electrode 17 and the ground electrode 18. If the flame current flows through the controller 19 and the current is converted into a signal by the controller 19, the ignition can be confirmed. In FIGS. 2 and 3, the ground electrode is replaced by the arm 8.

With the above construction, the riser 2 and the dry main (not shown) are cut off 30 minutes before being discharged from the kiln, so that the gas radiated from the cut up riser 2 is ignited. When the canister is closed and the canopy 3 is opened, the cylinder 7 is operated to tilt the ignition device main body 5 from vertical to horizontal with the pivot as a fulcrum. A fin-shaped gas concentrator 9 provided at the lower end of the arm 8 and having an open top is located at the center of the top of the riser 2 avoiding the open canopy 3 of the riser 2. Then, the gas rising from the riser pipe 2 is converged by the gas converging device 9 in the form of a cascade and rises in the tip of the arm 8.
Introduced into the tip. Then, when a high voltage is applied to the spark plug 12 via the high-voltage power cable 14, the spark plug 12 spark-discharges above the gas concentrator 9, and
And the gas rising in the tip of the arm 8 is ignited, and combustion starts. When the combustion starts, the flame flows out from the gas outlet hole 11 provided at the upper end of the arm, and the arm 8
The flame current electrode 17 of the ignition detector 15 attached to the bracket 16 provided on the upper part of the
A flame current of several μA of the flame flows between the ground electrode and the ground electrode, and ignition is confirmed. When the ignition is confirmed by the ignition detector 15, the cylinder 7 is operated again to tilt the ignition device main body 5 from horizontal to vertical with the pivot as a fulcrum.
Is returned to the initial state, and the ignition of the riser 2 is completed.

Further, in order to ignite the gas radiated from the riser 2 cut off from the riser 2 of the next kiln discharge kiln and the dry main (not shown), the charcoal truck is moved to the position of the carbonization chamber and stopped. By performing the same operation as described above, the gas radiated from the riser 2 is ignited, and after ignition is confirmed by the ignition detector 15, the riser 2 of the next kiln discharge kiln and the dry main (not shown) are connected. Beveled riser 2
The same operation is repeated to ignite the gas radiated from the furnace, thereby completing the igniting of the gas radiated from the riser 2 of the kiln of the same kiln group of the entire furnace group.

As shown in FIG. 6, when the on-board sequencer is automatically operated by the ground station controller via the on-board station controller and the coal-carrying car is automatically operated, usually 30 minutes before the kiln is put out. Ignition is performed by the following procedure, and the gas emitted from the riser 2 is ignited. That is, in the ground station control room, the ground station controller sends a kiln-ejecting block, for example, a row of 1 (carbonization rooms No. 1, 6, 11).
..), 3 rows (carbonized chambers No. 3, 8, 13...), 5 rows (carbonized chambers No. 5, 10, 15...), 2 rows (carbonized chamber N
o. 2, 7, 12 ...), 4 rows (carbonization chambers No. 4, 9,
14)), and when a command to cut off one row is input, the ground station controller instructs the on-board station controller of the coal-carrying car to control the coking chamber No. 1 is output. The on-board station controller of the coal-equipped vehicle that has received the traveling command transmits the coking room No. to the on-board sequencer. 1
Command to drive to. The on-vehicle sequencer receiving this receives the carbonization chamber No. from the initial location. 1 is calculated, and the carbonization chamber No. 1 is calculated. 1 toward the carbonization chamber No. 1.
1 to stop at a predetermined position and output a travel completion signal to the on-board station controller. Upon receiving this, the on-vehicle station controller outputs a stop kiln position stop signal to the ground station controller. The ground station controller having received this supports the edging operation on various cylinders provided on the riser, and the carbonization chamber No. Close the plate valve of No. 1 and discharge the cheap water,
The canopy 3 of the riser 2 is opened.

The carbonization chamber No. When the ground station operator confirms the completion of the first trimming operation on the operation of the cylinder and the industrial television monitor, it inputs a trimming completion command to the ground station controller. The ground station controller outputs an ignition command to the ascending pipe 2 to the on-vehicle station controller when the edge cut completion command is input. When the ignition command is input, the onboard controller instructs the onboard sequencer to issue the ignition command. When the on-vehicle sequencer operates the cylinder 7 to tilt the igniter main body 5 from vertical to horizontal with the pivot as a fulcrum, the gas concentrator 9 having a top open at the lower end of the arm 8 and having an open top is raised. It is located at the top center of the riser 2 avoiding the open canopy 3 of the tube 2. Then, the gas rising from the riser 2 is converted into a gas converging device 9 in the form of a cascade.
And rises in the distal end of the arm 8, and air is introduced from the air inlet 10 into the distal end of the arm 8 by the rising airflow. Next, when a high voltage is applied to the spark plug 12 via the high-voltage power cable 14, the spark plug 12 spark-discharges at the upper part of the gas converging device 9, and is converged by the gas converging device 9 and rises in the tip of the arm 8. And the combustion starts. When the combustion starts, the flame flows out from the gas outlet hole 11 provided at the upper end of the arm 8, and the flame current electrode 17 of the ignition detector 15 attached to the bracket 16 provided at the upper part of the arm 8 comes into contact with the flame, A flame current of several μA of the flame flows between the flame current electrode 17 and the ground electrode, and ignition is confirmed.

When the ignition is confirmed by the ignition detector 15, the on-vehicle sequencer again operates the cylinder 7 to tilt the ignition device main body 5 from horizontal to vertical with the pivot as a fulcrum, thereby initializing the ignition device main body 5. It returns to the state to complete the ignition of the riser 2, and outputs the completion of the ignition to the riser 2 to the on-vehicle controller. When the completion of the ignition of the ascending pipe 2 is input, the on-vehicle station controller outputs an ignition completion signal to the ascending pipe 2 to the ground station controller. The ground station controller receiving this detects the presence / absence of the border of one row, and if the border is found, the next kiln, that is, the carbonization chamber No. 6 and the same operation as above is performed. When ignition of all risers in row 1 is completed, the edge kiln in row 1 disappears. Command.

[0022]

[Effect of the invention] As described above, according to the invention,
A plurality of risers can be sequentially ignited by one ignition device provided on the bogie, and since the tip of the ignition device is located at the center of the riser tube, the influence of wind can be eliminated and ignition can be reliably performed. The ignition device can be returned to the initial position immediately after the ignition of the gas is confirmed by the ignition confirmation device, the damage of the ignition plug and the ignition detector is reduced, and the device can be used for a long time.

[Brief description of the drawings]

FIG. 1 is an overall plan view of a main part when a coke oven riser ignition device of the present invention is mounted on a coal-equipped car.

FIG. 2 is an overall side view of the main part.

FIG. 3 is an enlarged view of a main part of an ignition device and an ignition confirmation device with a part cut away.

FIG. 4 is an AA view of FIG. 3;

FIG. 5 is an explanatory diagram showing the principle of the ignition confirmation device.

FIG. 6 is a control system diagram of riser pipe automatic ignition and ignition confirmation work.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Machine frame of a coal-equipped car 2 Rise pipe 3 Canopy 4 Bend pipe 5 Ignition device main body 6 Support frame 7 Cylinder 8 Arm 9 Gas converging device 10 Air inlet 11 Gas outlet 12 Spark plug 13 Terminal box 14 High voltage power cable 15 Ignition detection Instrument 16 Bracket 17 Flame current electrode 18 Earth electrode 19 Controller

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-32975 (JP, A) JP-A-1-87143 (JP, U) JP-A-57-35346 (JP, U) JP-A-50- 24742 (JP, U)

Claims (2)

(57) [Scope of request for utility model registration] 1. A coke oven riser ignition device for igniting a gas flowing out of a coke oven riser top by an ignition plug, an arm movable to a center of the top of the riser on a trolley movable parallel to the riser row. A gas converging device and an air inlet are provided at the lower end of the arm, a gas outlet is provided at the upper end of the arm, and a spark plug is inserted into the gas converging device at the upper end of the arm. Coke oven riser ignition device. 2. A coke oven riser ignition device for igniting a gas flowing out of a riser top of a coke oven by a spark plug, an arm movable to a center of the top of the riser on a trolley movable parallel to the row of risers. A gas concentrator and an air inlet are provided at the bottom of the arm, a gas outlet is provided at the top of the arm, and a spark plug is inserted above the gas concentrator at the end of the arm. An apparatus for confirming ignition of a riser of a coke oven, wherein an ignition detector comprising a flame electrode is provided at an upper portion or a side portion of the hole.