JPH076253U - Coke oven riser ignition device and ignition confirmation device - Google Patents

Abstract

(57) [Summary] [Purpose] Without being affected by blowing gas or wind,
Be sure to ignite the spilled gas and check the ignition. [Structure] In a coke oven riser ignition device that ignites a gas flowing out of the top of the riser of the coke oven with an ignition plug, it is possible to move up to the center of the top of the riser tubes 2 on a carriage 1 that is movable parallel to two rows of riser tubes. An arm 8 is provided, a gas concentrator 9 in the form of a cap and an air inlet are provided at the lower end of the arm 8, a gas outflow hole is provided at the upper end of the arm, and an ignition plug is inserted on the gas concentrator 9 at the end of the arm. An ignition detector 15 including a flame current electrode 17 is provided above or at the side of the gas outflow hole at the tip of the arm. [Effect] The equipment cost and damage of the ignition plug and the ignition detector are reduced, and since it can be used for a long period of time, it is possible to construct the automation of the work on the furnace.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an ignition device and an ignition confirmation device for igniting gas emitted from the top of the ascending pipe when cutting the ascending pipe edge of a coke oven.

[0002]

[Prior art]

 In the coke oven, the coke that has been subjected to carbonization is extruded from the carbonization chamber by an extruder through a coke guide car into a fire engine or a coke bucket car to be extinguished by a wet or dry method. The carbonization chamber from which the coke after the carbonization has been extruded is charged with carbon from a coal car running on the furnace through the coal charging port and carbonized.

The coke oven gas generated during carbonization in the above coke oven is introduced from the ascending pipe at the end of the carbonization chamber to the dry main through the bend pipe, and is subjected to gas refining treatment in a later step. A canopy (top cover) is provided on the top of the ascending pipe, and a disc valve is provided at the connecting portion between the bend pipe and the dry main. When the canopy is closed and the dish valve is opened, the carbonization chamber and dry main are connected together, and the gas in the carbonization chamber is introduced into the dry main. Further, when the dish valve is closed and the canopy is opened, the carbonization chamber and the dry main are separated from each other, and the gas in the carbonization chamber is released from the top of the rising pipe into the atmosphere.

Usually, the rim cutting work between the carbonization chamber and the dry main is performed about 30 minutes before the coke is burned out after the coke is completely burned down, but the gas remaining in the carbonization chamber rises after the rim cutting with the dry main. Since it is released unburned from the top of the pipe, the coal charging port is opened for ignition and combustion. In addition, the connection work between the carbonization chamber and dry main is performed before carbonization, and the amount of suction of the gas in the furnace is adjusted by changing the low water pressure to high pressure. Conventionally, this edging and splicing work was manually operated by workers, but since it is a heavy-duty work on the coke oven, improvement is desired.

As a method therefor, there is known a method in which a remote operation is performed by a canopy, a cylinder provided for opening and closing a dish valve, and a cylinder individually provided for switching the low water for each rising pipe. Also, as an ignition device for the outflow gas flowing out from the top of the ascending pipe at the time of cutting the edge, a zone plate that forms an arc-shaped ignition zone in the circumferential direction along the outer circumference of the canopy of the ascending pipe is arranged. A device in which a spark plug is attached to a plate (Japanese Utility Model Laid-Open No. 57-35346), a gas catcher is provided on the upper part of the rising pipe, and a coke oven rising pipe ignition device in which the ignition plug is fixed to the gas catcher is used as a gas catcher. Guides a part of the released gas and stores the gas, and a gas holder chamber with a gas ejection part formed above it and an opening end near the gas ejection part. A pipe means in which a gas and air introduction mechanism is formed in the holder chamber, and a pipe means for extending and covering the gas jet portion for mixing the emitted gas and air and holding flame. And a flame holding plate means (Japanese Utility Model Laid-Open No. 1-87143), a pair of ignition plugs supported in a bifurcated manner at the tip of a traverse trolley provided on a coal carrier or towing trolley so as to traverse. An apparatus (Japanese Patent Laid-Open No. 5-32975) provided with an ignition mechanism capable of moving forward and backward to the vicinity of both sides of the canopy of the rising pipe has been proposed.

In order to confirm the ignition of outflow gas from the ascending pipe, a method is used in which an industrial television camera is installed on the furnace or near the ascending pipe and is remotely monitored by a monitor television provided in a monitor room.

[0007]

[Problems to be solved by the device]

 The ignition devices disclosed in Japanese Utility Model Laid-Open No. 57-35346 and Japanese Utility Model Laid-Open No. 1-87143 each require a gas catcher and a spark plug to be installed for each ascending pipe, which not only increases the equipment cost. However, the spark plug is exposed to flames and has a short life due to heat deterioration and carbon adhesion, and it has the drawback that non-ignition tends to occur due to the influence of wind because of ignition on the side surface of the rising pipe. Further, the ignition device disclosed in Japanese Unexamined Patent Publication (Kokai) No. 5-32975 is provided with an ignition mechanism composed of a pair of ignition plugs which can be moved forward and backward to the vicinity of both sides of the canopy of a rising pipe on a traverse vehicle of a coal charging vehicle. Although the problem of installing the ignition device disclosed in Japanese Utility Model Laid-Open No. 57-35346 and Japanese Utility Model Laid-Open No. 1-87143 in each rising pipe can be solved, non-ignition occurs due to ignition on the top side of the rising pipe. Although the drawback of being easy is ameliorated to some extent, misfire occurs in the direction of the wind passing through between the pair of ignition plugs. In addition, since this ignition device does not have an ignition detection mechanism, it has a drawback that unburned gas is released into the atmosphere until the charging port is opened for cleaning the rising pipe. Furthermore, remote ignition monitoring using a monitor TV is extremely unreliable and an automated system cannot be built.

An object of the present invention is to provide a coke oven riser ignition device and an ignition confirmation device capable of surely igniting an outflow gas without being affected by wind and confirming ignition with high accuracy. .

[0009]

[Means for Solving the Problems]

 The present inventors have conducted various tests and examinations in order to achieve the above object. As a result, instead of ignition on the side of the rising pipe top, an arm that is fixedly installed on a movable carriage that is parallel to the rising pipe row and that moves forward or backward or rotates to the center of the rising pipe top is provided, and a gas concentrator is installed at the tip of the arm. By providing an air inlet and an ignition plug inside the arm on the gas concentrator, the outflow gas can be reliably ignited without being affected by the wind, and a flame current electrode and a ground electrode are provided at the tip of the arm. It was founded that ignition could be confirmed by providing a flame current between the flame current electrode and the ground electrode, and arrived at the present invention.

That is, this invention is a coke oven riser ignition device that ignites the gas flowing out from the top of the riser of the coke oven by a spark plug, to the center of the top of the riser on a carriage that is movable in parallel with the row of risers. A movable arm is provided, a cap-shaped gas concentrator and an air inlet are provided at the lower end of the arm, a gas outflow hole is provided at the upper end of the arm, and an ignition plug is inserted on the gas concentrator at the arm tip. It is a coke oven rising pipe ignition device characterized by the following.

Further, in the coke oven riser ignition device that ignites the gas flowing out from the top of the riser of the coke oven by the spark plug, it is possible to move up to the center of the top of the riser on a carriage that is movable parallel to the row of risers. An arm is provided, a cap-shaped gas concentrator and an air inlet are provided at the lower end of the arm, a gas outflow hole is provided at the upper end of the arm, and an ignition plug is inserted on the gas concentrator at the end of the arm. This is a device for confirming ignition of a coke oven ascending pipe, which is characterized in that an ignition detector composed of a flame electrode is provided at the upper part or the side part of the outflow hole.

[0012]

[Action]

 In this invention, an arm whose tip can be moved to the center of the top of the rising pipe is provided on a carriage that is movable in parallel with the row of rising pipes, and a cap-like gas concentrator and an air inlet are provided under the tip of the arm. A gas outflow hole was provided above the arm tip, and an ignition plug was inserted into the gas concentrator at the arm tip, so that the ignition could be approached to the center of the top of the ascending pipe. Since the generated gas flows in together with the air from the air inlet, the outflow gas can be reliably ignited without being affected by the wind. The ignition device of the present invention is mounted on a carriage that can move in parallel with the row of rising pipes, and approaches the center of the top of the rising pipe only during ignition, and separates from the center of the top of the rising pipe when ignition is completed. Therefore, it is possible to prevent deterioration of the spark plug due to the flame and adhesion of carbon to the spark plug.

Further, in this invention, an arm whose tip can be moved to the center of the top of the ascending pipe is provided on a carriage that is movable in parallel with the ascending pipe row, and a gas concentrator in the shape of a cap is provided below the end of the arm. And an air inlet, a gas outflow hole at the top of the arm, an ignition plug inserted in the gas concentrator at the end of the arm, and an ignition detector consisting of a flame electrode at the top or side of the gas outflow hole at the end of the arm. Since the ignition plug is provided, 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 upper side or the side of the gas outflow hole at the end of the arm. It will be possible to save the fire early and build an automated system for the coal charging vehicle.

As a bogie movable in parallel with the ascending pipe row in the present invention, a coal car running on a coke oven, a towing bogie attached to the coal car, and a car running separately on the coal car rail separately from the coal car A trolley placed on the dry main side or a trolley placed on the dry main side so as to run parallel to the ascending pipe row is conceivable. However, it is recommended to use a coal-charging vehicle from the viewpoint of equipment costs. Further, the movement of the tip of the arm to the center of the top of the ascending pipe can be performed by tilting and extending the arm pivotally mounted on the dolly, or by providing the arm so that it can move back and forth horizontally. Note that the rim cutting work for the ascending pipes and dry mains related to ignition is performed by the method of using a cylinder installed for each ascending pipe or a cylinder installed in a coal car, but a signal that each operation was operated reliably can be obtained. It is necessary to have limit switches, etc. The ignition detector in this invention includes a flame current method consisting of a flame electrode and an earth electrode, a contact temperature measuring method for directly contacting the flame such as a thermocouple method, a radiation thermometer method, an infrared light CCD method, and a flame detecting method. A non-contact temperature measuring method such as a double spectrum method that detects highly sensitive fluctuations of ultraviolet rays and infrared rays can be used, but it is simple to use a flame current method consisting of a flame electrode and a ground electrode.

[0015]

【Example】

 Embodiment 1 Hereinafter, details of the coke oven riser ignition device of the present invention will be described with reference to FIG. 1 and FIG. 6 showing an embodiment. Fig. 1 is an overall plan view of the coke oven riser ignition device of the present invention mounted on a coal car, Fig. 2 is the same overall side view, and Fig. 3 is a partially cut-out ignition device and ignition confirmation device. FIG. 4 is an enlarged view of a main part, FIG. 4 is a view taken along the line AA 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 for automatic ignition of an ascending pipe and ignition confirmation work. 1 to 5, 1 is a machine frame of a coal car, 2 is an ascending pipe standing in each carbonization chamber, 3 is a canopy provided at the top of the ascending pipe 2, and 4 is a bend pipe connected to the ascending pipe 2. The coke oven gas generated from the carbonization chamber is connected to a dry main (not shown) through a pan valve, and the canopy 3 is closed to open the pan valve (not shown) to connect the rising pipe 2 and the dry main (not shown). Is introduced into the dry main through the ascending pipe 2 and the bend pipe 4.

Reference numeral 5 denotes an ignition device main body pivotally attached to a support frame 6 provided at an end portion of the machine frame 1 of the coal charging vehicle on the side of the ascending pipe 2. When the cylinder 7 is operated, the ignition device is tilted from a vertical axis to a horizontal axis as a fulcrum. To roll. The ignition device body 5 includes an arm 8 whose tip can be moved to the center of the top by avoiding the position of the canopy 3 where the ascending pipe 2 is opened by tilting, and a cap-like gas with the top opened at the lower end of the arm 8. Consists of a concentrator 9, an air inlet 10 provided near the gas concentrator 9, a gas outflow hole 11 provided at the upper end of the arm, and an ignition plug 12 inserted on the gas concentrator 9 at the end 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 if a high voltage is applied to the ignition plug 12 via the high-voltage power cable 14, the ignition plug 12 is ignited. The upper part of the converging device 9 is configured to cause a spark discharge. Reference numeral 15 denotes an ignition detector attached to a bracket 16 provided on the upper part of the arm 8. As shown in FIG. 5, when the flame current electrode 17 comes into contact with the flame, a flame of several μA between the flame current electrode 17 and the ground electrode 18 The flame current flows, and if the current is converted into a signal by the control device 19, ignition can be confirmed. Note that, in FIGS. 2 and 3, the ground electrode is substituted by the arm 8.

With the above-described structure, the rising pipe 2 and the dry main (not shown) are cut off 30 minutes before the kiln is discharged, so that the gas emitted from the cut-off rising pipe 2 is ignited. When the plate valve is closed and the canopy 3 is opened, the cylinder 7 is operated to tilt the ignition device body 5 from vertical to horizontal with the pivot as the fulcrum. Then, the gas concentrator 9 in the shape of a cap provided at the lower end of the arm 8 and having an open top is located at the center of the top of the rising pipe 2 while avoiding the open canopy 3 of the rising pipe 2. Then, the gas rising from the ascending tube 2 is converged by the gas concentrator 9 in the shape of a cap and rises in the tip of the arm 8, and air is introduced from the air introduction port 10 into the tip of the arm 8 by the ascending air current. . Then, when a high voltage is applied to the ignition plug 12 via the high voltage power cable 14, the spark plug 12 discharges sparks at the upper part of the gas converging device 9 and is converged by the gas converging device 9 to rise inside the tip of the arm 8. The gas that ignites is ignited, and combustion begins. When the combustion is started, the flame flows out from the gas outflow hole 11 provided at the upper end of the arm, 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 that a flame has flows between the flame current electrode 17 and the ground electrode, and ignition is confirmed. When 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, and the ignition device main body 5 is returned to the initial state to raise the rising pipe 2 Complete the ignition.

Further, in order to ignite the gas emitted from the rising pipe 2 which is cut off by the rising pipe 2 and the dry main (not shown) of the next kiln discharge kiln, the coal car is driven to the carbonization chamber position and stopped. By performing the same operation as above, the gas emitted from the rising pipe 2 is ignited, and after confirming the ignition by the ignition detector 15, the rising pipe 2 of the next kiln discharge kiln and the dry main (not shown) are To ignite the gas emitted from the edged riser 2 by repeating the same operation, complete the ignition of the gas emitted from the riser 2 of the kiln of the same kiln discharge group of the entire furnace group. To do.

As shown in FIG. 6, when the on-board sequencer is automatically operated by the ground station controller via the on-board station controller to automatically drive the coal car, 30 minutes before the kiln is normally discharged. The edges are cut according to the following procedure, and the gas emitted from the rising pipe 2 is ignited. That is, in the ground station control room, a kiln block for the ground station controller, for example, 1 row (carbonization chamber Nos. 1, 6, 11 ...), 3 rows (carbonization chamber Nos. 3, 8, 13 ...), 5 No. 5 (carbonization chamber No. 5, 10, 15 ...), No. 2 row (carbonization chamber No. 2, 7, 12 ...), No. 4 row (carbonization chamber No. 4, 9, 14 ...) When the edge cutting command for the 1st row is input, the ground station controller sends the No. It outputs the running command to 1. Upon receiving this driving instruction, the onboard controller of the coal car is directed to the onboard sequencer in the carbonization room No. Instruct to drive to 1. The on-board sequencer that received this received the No. of carbonization chamber from the initial location. The running distance up to 1 is calculated and the carbonization chamber No. Drive toward No. 1 It stops at the predetermined position of 1 and outputs a traveling completion signal to the on-board station controller. Upon receiving this, the on-board station controller outputs an edge-cutting kiln position stop signal to the ground station controller. Upon receiving this, the ground station controller supports the edge cutting operation on various cylinders provided in the ascending pipe, and the carbonization chamber No. The dish valve of No. 1 is closed to discharge the low water, and the canopy 3 of the rising pipe 2 is opened.

Carbonization chamber No. When the ground station operator confirms that the trimming operation of 1 is completed on the cylinder operation and the industrial TV monitor, it inputs a trimming completion command to the ground station controller. When the edge cutting completion command is input, the ground station controller outputs an ignition command to the ascending pipe 2 to the onboard controller. When the ignition command is input, the onboard controller instructs the onboard sequencer to issue the ignition command. The on-vehicle sequencer operates the cylinder 7 to tilt the ignition device main body 5 from the vertical to the horizontal with the pivot as the fulcrum. 9 is located in the center of the top of the rising pipe 2 avoiding the open canopy 3 of the rising pipe 2. Then, the gas rising from the rising pipe 2 is converged by the gas concentrator 9 in the shape of a cap and rises in the tip of the arm 8, and the rising airflow introduces air into the tip of the arm 8 from the air introduction port 10. Then, when a high voltage is applied to the spark plug 12 via the high-voltage power cable 14, the spark plug 12 causes a spark discharge at the upper part of the gas concentrator 9, and the gas is converged by the gas concentrator 9 and rises in the tip of the arm 8. Is ignited and combustion begins. When the combustion is started, the flame flows out from the gas outflow hole 11 provided at the upper end of the arm, and the flame current electrode 17 of the ignition detector 15 mounted on the bracket 16 provided at the upper part of the arm 8 comes into contact with the flame. A flame current of several μA, which the flame has, flows between the flame current electrode 17 and the ground electrode, and ignition is confirmed.

When the ignition detector 15 confirms the ignition, the on-vehicle sequencer operates the cylinder 7 again to tilt the ignition device body 5 from the horizontal to the vertical with the pivot as the fulcrum. After returning to the initial state, the ignition of the ascending pipe 2 is completed, and the completion of ignition of the ascending pipe 2 is output to the onboard controller. The on-board station controller outputs an ignition completion signal to the ascending pipe 2 to the ground station controller when the completion of ignition to the ascending pipe 2 is input. Upon receiving this, the ground station controller detects the presence or absence of the edging in the row 1, and if the edging is performed, the next kiln, that is, the carbonization chamber No. When commanding to drive to No. 6 and performing the same operation as above to complete ignition of all the rising pipes in the 1st row, the edging kiln in the 1st row disappears, so drive the coal car to the coal tower. Order.

[0022]

[Effect of device]

 As described above, according to the present invention, a single ignition device provided on the carriage can sequentially ignite a plurality of ascending pipes, and the tip of the ignition device is located at the center of the ascending pipe. It is possible to ignite reliably without removing the influence, and it is possible to immediately return the ignition device to the initial position after confirming the ignition of the gas with the ignition confirmation device, which reduces damage to the ignition plug and the ignition detector, and for a long period of time. Can be used.

[Brief description of drawings]

FIG. 1 is an overall plan view of an essential part when a coke oven riser ignition device of the present invention is installed in a coal car.

FIG. 2 is a side view of the entire main part of the same.

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 a view taken along line AA of FIG.

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

FIG. 6 is a control system diagram for automatic ignition of an ascending pipe and ignition confirmation work.

[Explanation of symbols]

 1 Coal car frame 2 Ascending pipe 3 Canopy 4 Bend pipe 5 Ignition device body 6 Support frame 7 Cylinder 8 Arm 9 Gas concentrator 10 Air inlet 11 Gas outflow hole 12 Spark plug 13 Terminal box 14 High voltage power cable 15 Ignition detection 16 Bracket 17 Flame current electrode 18 Earth electrode 19 Controller

Claims (2)

[Scope of utility model registration request] 1. In a coke oven riser ignition device for igniting gas flowing out from the top of the riser of the coke oven by an ignition plug, an arm movable to the center of the top of the riser on a carriage movable parallel to the row of risers. A gas concentrator in the form of a cap and an air inlet are provided at the lower end of the arm, a gas outflow hole is provided at the upper end of the arm, and an ignition plug is inserted on the gas concentrator at the end of the arm. Coke oven riser ignition device. 2. A coke oven riser ignition device for igniting a gas flowing out from the top of the riser of the coke oven by an ignition plug, and an arm movable to the center of the top of the riser on a carriage that is movable in parallel with the row of risers. The upper end of the arm is provided with a gas concentrator and an air inlet, the upper end of the arm is provided with a gas outlet hole, the ignition plug is inserted into the gas concentrator at the end of the arm, and the gas is discharged from the end of the arm. A coke oven riser ignition confirmation device, characterized in that an ignition detector composed of a flame electrode is provided at the top or side of the hole.