JPH04142394A - Method for correcting oven lid detaching and attaching position in coke oven and device for detecting deviation in the position - Google Patents

Abstract

PURPOSE:To facilitate the correction of the oven lid detaching and attaching position of a coke guide with a reduced equipment investment by providing a unit for guiding to the oven lid center both on an oven lid detaching and attaching device and in an inner truck moving mechanism. CONSTITUTION:When coke pushing is initiated, a coke glide 1 is stopped at the central position of a chamber. Before detaching or attaching an oven lid 18, an oven lid detaching and attaching device 4 is moved forward, and an actuator 11 is operated to advance a frame 13 into the frame 19 of the lid 18. Actuators 16 and 17 are operated to advance rods 14 and 15, and their traveling distances A and B until they contact the frame 19 are detected. The actuators 16 and 17, and then the actuator 11 are reversely operated to retract the rods 14 and 15 and the frame 13. From the detected distances A and B, a deviation C of the center of the device 4 from that of the lid 18 and its direction are determined by an arithmetic unit 20. A unit 9 for guiding to the oven lid center is controlled by a unit 21 for guiding and controlling lid removal so that an inner truck 3 together with an actuator 6 is moved through a sliding part 8, the traveling distance D is fed back to the arithmetic unit 20, and the center of the device 4 is made to coincide with that of the lid 18.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a coke oven lid removal position correction method that can guide the coke guide car lid removal machine to the center of the coke oven lid when installing and removing the coke oven lid. The present invention also relates to a furnace lid removal/detachment machine deviation detection device.

[Prior art] - A coke oven is equipped with coke oven working machines such as an extruder, a coal loading car, a coke guide car, a fire extinguishing car, or a coke packet car. Driving is taking place.

The most important thing in operating this working machine is to stop it accurately at a predetermined stop position.

In conventional manual operation, a stop position sign is provided in advance on the coke oven side, and the driver performs the stop operation while checking this sign with the naked eye.

On the other hand, recently, in order to save labor and realize unmanned operation of coke ovens, automatic control methods for coke oven working machines have been implemented in some cases, and various methods for detecting the stop position of mobile machines have been proposed.

For example, there is a method in which a sensing piece such as an iron piece is placed at the stop position of each kiln in a coke oven, and the stop position is detected using a proximity switch installed on the working machine. A floodlight is used to illuminate targets such as reflectors installed along the sides of each kiln, and the reflected light is converted into an electrical signal by an image receiver to detect the position and determine the stopping position of the working machine. A method of detecting an error from a fixed position due to a target has been proposed.

When a sensing piece is installed at the stop position of each kiln and the stop position is detected by a proximity switch on the working machine side, a coke oven group has tens to hundreds of carbonization chambers and can store coal in 1,100 to 100 1
After producing coke by carbonizing it at 300℃ and discharging the coke from an extruder through a coke guide car into a fire extinguisher, etc., the process of recharging room temperature coal is charged into the carbonization chamber using a coal loading car for each kiln. It's repeating.

Therefore, since each carbonization chamber repeatedly expands due to temperature rise and contracts due to cooling during coal charging, the setting position and the sensing piece are moved and displaced. In addition, coke ovens are exposed to harsh environments such as large amounts of dust, corrosive gases, and high temperatures, and stopping accuracy changes due to displacement due to expansion and contraction of the furnace body, or changes in the braking force of the brake due to changes in weather. However, it is extremely difficult to accurately stop the kiln at the center of the kiln with a predetermined stopping accuracy, that is, an accuracy of ±10 mm or less.

As a countermeasure for this, a beam for installing iron pieces that can be moved and equipped with a locking mechanism is placed parallel to the extruder and coke guide car, and the iron piece can be installed while the extruder and coke guide car are being operated. A method in which only the beam for installing iron pieces is advanced and locked in a predetermined position by a locking mechanism, and the extruder and coke guide car automatically travel while detecting the iron piece for detection of the locked beam for installing iron piece (Japanese Patent Laid-Open No. 504
5001). An angle detection arm that can move toward and away from the furnace mouth or furnace lid, an actuator connected via a link mechanism to rotate the arm, an angle detector that detects the rotation angle of the angle detection arm, and the detection A furnace mouth and furnace lid position detection device (consisting of a calculation device for determining the meaningful positional relationship of the furnace mouth or furnace lid from the detected value by the device)
(Japanese Patent Application Laid-Open No. 59193985). Stop control is performed according to a preset stop control pattern based on information from a position detection device using a twisted pair type guided wireless line and a speed detection device, and the brake is released when a predetermined deceleration is reached. A method of switching to inertia operation and thereafter stopping at a fixed position based on position information from a fixed position detection device such as an infrared scanning detector (Japanese Patent Laid-Open Publication No. 1983-205615). Alternatively, it is supported movably in the running direction of the bogie at the bottom of the car body,
A clamping mechanism for ground-to-high side fixing blocks is provided at the bottom of the trolley, and the loft end of the rod-type hydraulic cylinder is pivotally supported on the trolley on which the clamping mechanism is supported, and the central part of the double-rod-type hydraulic cylinder is Many proposals have been made, including a fixed position stopping device (Japanese Unexamined Patent Publication No. 109582/1982) in which the front rudder is pivoted to the lower part of the front rudder body.

Problems to be Solved by the Invention The method disclosed in the above-mentioned Japanese Patent Application Laid-open No. 50-45001 indirectly detects the center of the furnace chamber. In some cases, due to contraction, the stopping positions are not at regular intervals and are shifted, making it impossible to stop with a predetermined stopping accuracy.

Furthermore, the device disclosed in Japanese Patent Application Laid-open No. 59-193985 calculates the deviation between the center of the furnace mouth or the furnace cover and the iron piece on the ground side from the rotation angle of the angle detection arm, and finely adjusts the position of the truck. For fine adjustment, a fine adjustment mechanism is added to move the entire cart, which requires a large fine adjustment mechanism and a large investment in equipment.

Furthermore, the method disclosed in Japanese Patent Application Laid-Open No. 60-205615 uses a fixed position detection device such as an infrared scanning detector to perform final stop control of the working machine, and therefore it takes time to stop the working machine in the fixed position.

Furthermore, the device disclosed in Japanese Unexamined Patent Publication No. 59-109582 requires installation of a ground-side fixed block and a ground-side fixed block clamping mechanism, requiring a large investment in equipment.

The purpose of this invention is to propose a method for correcting the position of a coke oven lid in which the position of the lid in the coke guide car can be easily corrected and can be carried out with a low investment in equipment, as well as a device for detecting deviation of the lid in the furnace lid. be.

Means for Solving the Problems The present inventors conducted various studies in order to achieve the above object. As a result, in the coke guide car, the inner truck that houses the shutters and furnace cover removal machine is movably mounted on the main truck.
A one-point guide vehicle (for example, Japanese Utility Model Application No. 56-57251, etc.) has been proposed that can alternately align the shutters and the furnace lid detacher to the furnace chamber without moving the main truck that has been positioned in the furnace chamber. We focused on the fact that Then, a lid center detection device is attached to the furnace lid removal machine of the one-point guide car, and the deviation and direction between the furnace lid removal machine center and the furnace lid center are detected, and the inner truck is moved to align the furnace lid removal machine center. The inventors have discovered that the above object can be achieved by correcting the deviation from the center of the furnace lid, and have arrived at this invention.

That is, this invention stores the shutters and the furnace cover removal machine in the inner car of a coke guide car consisting of a main car and an inner car, and places the shutters and the furnace cover removal machine on the main car in a movable manner, and moves the inner car to attach and remove the furnace cover. In the coke guide car, which alternately aligns the machine and shutters to the center of the furnace chamber, a furnace lid center detection device is added to the furnace lid removal machine, and a furnace lid center guide device is attached to the inner truck moving mechanism, and the extrusion kiln is stopped. Rough positioning at the time is performed by the main truck, and the deviation between the center of the furnace lid removal machine and the center of the furnace lid detected by the furnace lid center detection device is corrected by the furnace lid center guidance device.

In addition, the furnace lid removal machine installed on the coke guide car or extruder has a support arm that can move forward and backward into the furnace lid frame when removing the furnace lid, and two support arms that move forward and backward in opposite directions at the tip of the support arm. The furnace lid demounter deviation detection device consists of an actuator, a sensor that detects the amount of rod movement of each actuator, and a calculation device that calculates the deviation and direction between the center of the furnace lid and the center of the furnace lid demounter from the amount of rod movement of each actuator. be.

Function: In this invention, a furnace lid center detection device is added to the furnace lid detachment machine housed in the inner truck of a coke guide car consisting of a main truck and an inner truck, and a furnace lid center guide device is attached to the inner truck moving mechanism. , the deviation between the center of the furnace lid and the center of the furnace lid demounter is detected, the approximate positioning when the extrusion kiln is stopped is performed by the main trolley, and the deviation between the center of the furnace lid demounter and the center of the furnace lid detected by the furnace lid center detection device is detected. Since the inner truck is moved and corrected by the furnace lid center guidance device, the deviation between the center of the furnace lid detacher and the center of the furnace lid can be accurately corrected without moving the main truck.

To correct this deviation between the center of the furnace lid detacher and the center of the furnace lid, specifically, a lid center guiding device is installed that moves the actuator of the switching mechanism between the furnace lid detacher and the shutter, which is an inner truck moving mechanism, by the deviation. Alternatively, this can be achieved by using the actuator of the switching mechanism between the furnace lid removal machine and the shutter to both switch between the furnace lid removal machine and the shutter and correct the deviation between the center of the furnace lid removal machine and the center of the furnace lid. .

Detection of the deviation between the center of the furnace lid and the furnace lid removal by the furnace lid removal/detachment device is carried out using two actuator rods installed in opposite directions at the tip of the support arm that can move forward and backward into the furnace lid frame when the furnace lid is removed. The amount of movement of each rod is detected by a sensor, such as a nincoder with a built-in actuator or a potentiometer, etc., and the center of the furnace lid is detected from the amount of movement of each rod, and the deviation of the center of the furnace lid removal machine is detected. and the direction are calculated by a calculation device.

EXAMPLE The details of the present invention will be explained below based on the drawings showing an example of implementation.

Embodiment 1 FIG. 1 is a schematic explanatory diagram of the furnace lid center detection device of the present invention, and FIG. 2 is a flowchart of deviation correction between the furnace lid center and the center of the furnace lid attachment/detachment machine by the deviation calculating device and the lid removing guidance control device. FIG. 3 is a schematic explanatory diagram showing an example of an apparatus for carrying out the method of this invention.

In Fig. 3, the coke guide car (1) is connected to the main bogie (2).
) and an inner truck (3), the inner truck (3) stores the furnace lid detacher (4) and the shutter (5), and the actuator (6) allows the lid to be removed without moving the main truck (2). Move the inner truck (3) and remove the furnace cover (4) and shutter (5).
can be aligned alternately to the center of the furnace chamber. Furnace lid removal machine (4)
A furnace lid center detection device (7) is installed at the bottom of the furnace.

The actuator (6) is connected to the lid center guidance device (9) via the slide portion (8), and is connected to the lid center guidance device (9) through the sliding portion (8).
) is configured to slide the inner carriage (3) together with the actuator (6) to adjust the deviation between the center of the furnace lid detected by the furnace lid center detection device (7) and the center of the furnace lid detacher (4). do.

The furnace lid center position is detected by a furnace lid center detection device (7) attached to the lower part of the furnace lid detacher (4), as shown in FIG. The furnace lid center detection device (7) is the furnace lid removal machine (4).
The underframe (13) is installed at the ends of the support arms (10) on both sides of the lower part of the machine frame so as to be movable forward and backward by the actuator (11). Rod (14) (15) in the opposite direction
) with the actuators (16) and (17) installed. Prior to attachment and detachment of the furnace lid (18), the actuator (11) is actuated to advance the underframe (13) into the frame (19) of the furnace lid (18). Next, actuator (16) (17) is actuated to move rod (14) (15).
) are simultaneously advanced and stopped when the rods (14) and (15) contact the frame (19). The forward distance of the rods (14) (15) at this time is detected by sensors (not shown), such as encoders or potentiometers built into the actuators (16) (17). Then actuator (16) (17)
The rods (14) and (15) are reversely operated to retract the rods (14) and (15), and the actuator (11) is further reversely operated to retract the underframe (13) to the standby position. Detected rod (14) (15
) are respectively output to an arithmetic device (20) such as a programmable controller shown in FIG. The calculation device (20) calculates the center of the furnace lid (18) and the center of the furnace lid detacher (4) from the forward distances A and B of the rods (14) and (15) manually operated from the furnace lid center detection device (7). Detect the deviation C from the

The detection of the deviation C by the arithmetic device (20) is performed, for example, as described in the arithmetic device (20) in FIG.
/2=±C・ Calculated using equation (1).

The deviation C between the center of the furnace M (1g) and the center of the furnace lid detacher (4) calculated by the calculation device (20) and the direction are determined by the lid removal guidance control device that controls the furnace lid center guidance device (9). (2
1) is output.

The lid removal guidance control device (21) operates the lid center guidance device (21) according to the deviation C between the center of the furnace lid (18) and the center of the furnace lid detacher (4) and the direction inputted from the calculation device (20). 9) to control the actuator (6) through the slide part (8).
At the same time, the inner trolley (3) is moved, the amount of movement is fed back to the calculation device (20), and the furnace cover removal machine (4)
The center of the furnace lid (18) is made to coincide with the center of the furnace lid (18) (C=D).

With the above configuration, kiln unloading is started, and the coke guide car (1) is stopped at the designated central position of the furnace chamber by the coke guide car automatic control device using a non-contact position detection device (not shown). Prior to attaching and detaching the furnace lid (18), the furnace lid detacher (4) is moved forward and the actuator (11) is activated to move the underframe (13) into the frame (19) of the furnace lid (18). move forward. Then actuate the actuators (16) (17) to move the rods (14) (15).
) are moved forward at the same time, and when the rods (14) (15) contact the frame (19), the rods (14) (15)
) is detected. After that, the actuators (16) (17) are operated in reverse to move the rod (14) (
15) is retracted, and the actuator (11) is further operated in reverse to retract the underframe (13) to the standby position. Based on the detected advance distances A and B of the rods (14) (15), the calculation device (20) determines the center of the furnace lid (18) and the furnace lid detacher (
4), detect the deviation C from the center and the direction, and then control the lid center guidance device (9) by the lid removal guidance control device (21) to move the lid center guidance device (9) together with the actuator (6) via the slide portion (8). The inner trolley (3) is moved, and its movement amount is fed back to the computing device (20) to align the center of the furnace lid detacher (4) with the center of the furnace lid (18).

After that, the furnace lid (16) is removed using the furnace lid removal device (4), and then the actuator (6) is activated to remove the inner truck (3).
) is moved to position the shutter (5) in the center of the furnace chamber, and then the shutter (5) is attached to the kiln mouth to complete preparations for unloading the kiln.

When coke extrusion is completed by an extruder (not shown),
After the shutter (5) is removed from the kiln mouth, the actuator (6) is operated in the opposite manner to the above to move the inner truck (3) and position the center of the furnace cover detacher (4) at the center of the furnace chamber. After cleaning the kiln mouth frame with a cleaner, the furnace lid (18) is attached to the furnace chamber. After the furnace lid (18) has been installed, the furnace lid center guide device (9) returns to the neutral position (zero point) and waits for a command to move to the next furnace chamber.

Embodiment 2 FIG. 4 is a schematic explanatory diagram showing another example of an apparatus for carrying out the method of this invention.

In FIG. 4, the furnace lid center guidance device (22) is an integrated unit of the actuator (6) and furnace lid center guidance device (9) shown in FIG. The deviation between the center of the furnace lid detected by the lid center detection device (7) and the center of the furnace lid detacher (4) is adjusted, and the furnace lid detacher (4) and the shutter (5) are switched. Furnace lid center guidance device (22
) consists of an actuator such as a power cylinder or hydraulic cylinder with a built-in encoder or potentiometer. The deviation between the center of the furnace lid and the center of the furnace lid detacher (4) can be adjusted using the computing device (2) in the same way as explained in FIG.
0), the deviation and direction are calculated using equation (1) above, and the lid removal guidance control device (21) calculates the lid center guidance device (2).
2) is carried out under control. After removing the furnace lid, the shutter (5) is positioned at the center of the furnace chamber by moving the inner carriage (3) by E from the deviation-adjusted position using the furnace lid center guiding device (22). The rest may be carried out in accordance with the first embodiment, and the explanation will be omitted.

Effects of the Invention As described above, according to the method of the present invention, by installing a furnace lid center detection device and a furnace lid center guidance device on the coke guide car, the stopping accuracy of the coke guide car that runs over the entire length of the coke oven can be improved. There is no longer a need to raise the temperature, the lid center guidance device enables highly accurate stop control, and automatic control of the coke guide car becomes possible. Further, since the deviation detection device for the lid demounter can accurately detect the deviation between the center of the furnace lid and the center of the furnace lid demounter, it is possible to improve the accuracy of stopping the extrusion process.

[Brief explanation of the drawing]

Fig. 1 is a schematic explanatory diagram of the furnace lid center detection device of the present invention, Fig. 2 is a flowchart of deviation calculation between the furnace lid center and the center of the furnace lid removal/detachment machine, and deviation correction by the lid removal guidance and restraint device, and Fig. 3 4 is a schematic explanatory diagram showing an example of an apparatus for implementing the method of this invention, and FIG. 4 is a schematic explanatory diagram showing another example of an apparatus for implementing the method of this invention. 1...Coke guide car, 2...Main truck, 3...Inner truck, 4...Furnace cover removal machine, 5...Shiro door, 6.11.16.17...Actuator, 7... - Furnace lid center detection device, 8... Slide part, 9.22... Furnace lid center guide device, 10... Support arm, 12.14.15... Rod, 13 Underframe, 18 Furnace lid, 19. ... Frame, 20... Arithmetic device, lid removal guidance control device, Applicant Sumitomo Metal Industries Co., Ltd. Agent

Claims (1)

[Scope of Claims] 1. A shutter and a furnace lid removal/removal machine are stored in the inner car of a coke guide car consisting of a main car and an inner car, and the shutters and a furnace cover removal machine are placed on the main car so that they can run, and the inner car is moved to remove the furnace. In the coke guide car that aligns the lid removal machine and the shutter to the center of the furnace chamber, a furnace lid center detection device is added to the furnace lid removal machine, and a furnace lid center guidance device is attached to the inner truck moving mechanism, and the extrusion A coke oven lid removal/detachment system characterized in that rough positioning when the kiln is stopped is performed by a main truck, and a deviation between the center of the lid removal machine and the center of the furnace lid detected by a lid center detection device is corrected by a lid center guidance device. Position correction method. 2. A furnace lid removal machine installed on a coke guide car or an extruder has a support arm that can freely move forward and backward into the furnace lid frame when removing the furnace lid, and two actuators that move forward and backward in opposite directions at the tip of the support arm. A furnace lid demounter deviation detection device consisting of a sensor that detects the amount of rod movement of each actuator, and an arithmetic device that calculates the deviation and direction between the center of the furnace lid and the center of the furnace lid demounter from the amount of rod movement of each actuator.