JPH04106191A - Apparatus for controlling opening and closing of door of coke oven quenching car - Google Patents

Abstract

PURPOSE:To facilitate the opening operation of the door of a quenching car at a specified wharf by combining a means for varying tractive tension and a means for actuating traction with a means for detecting the position of the quenching car so as to perform a specific function. CONSTITUTION:When a quenching car 14 is stopped at a specified wharf or when a proximity switch 24 detects the approach of a conductive plate 51, the detected signal is inputted into a system operation control apparatus 18. Under the control of the instruction from the apparatus 18, a means 42 for varying tractive tension is operated by a winch control unit 50 to reduce the tractive tension of a wire rope 37, thereby operating a means for actuating traction. At the same time, an actuator 16 for door opening and closing is operated for control via a changeover valve for opening and closing to open a door 15, thereby discharging loaded coke into the specified wharf as expected. After discharging the coke, the tractive tension is restored to the original value so that the door 15 can be closed again.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a door opening/closing control device for a coke oven fire extinguishing vehicle, and more particularly, to a door opening/closing control device for a coke oven fire extinguishing vehicle that is driven by a wire rope traction means. This relates to a door opening/closing control device for opening a door.

[Prior Art] Conventionally, this type of coke oven equipment usually consists of a coke oven that burns coking coal in individual furnace chambers installed in parallel, and a coke oven that charges coking coal to each furnace chamber. a charging car for pushing out the calcined red-hot coke from each furnace chamber; a fire extinguishing truck for loading and receiving the red-hot coke pushed out by the extruder through the intervention of a guide car;
Each station has a fire tower that extinguishes the red-hot coke loaded on the fire extinguisher by spraying water, and a coke wharf that receives the coke scraped from the fire extinguisher. Tracks are laid corresponding to each of these parts. A trolley line is installed above the trolley line, and a fire extinguishing truck is towed on the track by an electric car that receives power from the trolley line and is operated. The engine is equipped with an electric compressor, a compressed air tank, etc. as a compressed air source used to open and close the fire extinguisher, or to brake and stop the fire extinguisher itself.

Regarding the operation control of the fire extinguishing truck in the coke oven with the above configuration, in -M, it is performed by a worker in the driver's cab of the electric car pulling the fire extinguishing truck, and the operation procedure is as follows. First, raw coal is sequentially charged and fired into each furnace chamber in a coke oven configuration using a charging car, and then an extruder, a guide car, and a fire extinguisher are placed in the corresponding furnace chamber position where the furnace is discharged from the kiln. The cars are parked with accurate alignment, and when the extruder extrudes the calcined red hot coke, the fire extinguisher is moved in synchronization with the extrusion speed. Red-hot coke is loaded onto a car with the opening/closing door closed, and the carcasses are deposited there. After loading, the fire extinguishing truck is driven towards the fire tower, stopped at a predetermined position inside the fire tower, and then In this state, the loaded red-hot coke is extinguished by being sprayed with water from the tank on top of the tower, and after the water has been thoroughly drained, the fire extinguishing truck is then driven towards the coke wharf and placed at the designated wharf. After that, the door is opened and the extinguished coke is unloaded onto the specified wharf point and disposed of. In this way, the work of the own kiln receiver is completed, and from now on, this work This process is repeated in sequence for each furnace chamber to continuously carry out the required unloading of the kiln.

[Problem to be Solved by the Invention 1] By the way, regarding the operation of the above-mentioned coke oven fire extinguishing vehicle, the mutual positional relationship with other working machines such as the guide vehicle and extruder is extremely important. For this purpose, communication means such as wired or wireless telephones are usually used.
It is necessary for the workers in each area to communicate with each other and proceed with the work while confirming the working status and working position of each working machine.

However, in such artificial and manual operation operations based on mutual communication between workers, false alarms are likely to occur due to misunderstandings, and it is not always possible to accurately grasp the work status, work position, etc. There is a problem.

Therefore, in the past, these extruders were used.

Although methods have been proposed for automatically controlling the operating operations of guide vehicles and fire engines, there are some methods that can be used to automatically control the operation of various working machines such as guide vehicles and fire engines. Since the total weight of the fire engine and the electric car that tows the fire engine is quite large (for example, the weight of the fire engine is 55 tons, the weight of the electric car is 35 tons, and the total weight is about 90 tons), the load on the track surface is It is not necessarily effective because it is heavy and the relative position of the raceway to the reactor body, fire tower, coke wharf, etc. tends to fluctuate, and the raceway itself cannot be used as a reference surface for operation control operations. Therefore, in order to withstand such heavy loads, it is necessary to increase the strength of the track method by constructing a sufficient concrete foundation structure, which requires a large amount of foundation construction costs. It was something to do.

On the other hand, in coke oven equipment operated as described above, raw coal is charged into the furnace chamber.

The process of firing, discharging the calcined coke into the fire extinguishing truck, and discharging the extinguished coke from the extinguishing truck to the designated wharf location will inevitably cause dust to scatter or fly up. It has the disadvantage of an extremely poor atmosphere, and in such a poor environment, each work operation, especially in this case, the discharge of extinguished coke to a designated wharf location, This causes various undesirable problems in effectively opening and closing the door.

This invention was made to solve these conventional problems, and its purpose is to improve the operating method for running a fire extinguisher in a coke oven facility, and to improve the trolley system. Avoid towing with electric vehicles that receive power from the line, use a wire rope traction device instead, and in this situation, ensure that the opening/closing doors of fire engines at designated wharf locations can be opened and closed properly. This made it possible to carry out effective expulsion. An object of the present invention is to provide a door opening/closing control device for a coke oven fire extinguishing vehicle of this type.

[Means for Solving the Problems] In order to achieve the above object, a door opening/closing control device for a coke oven fire extinguishing vehicle according to the present invention includes a winch traction device via a wire rope for driving the running operation of the fire extinguishing vehicle. In this condition, the fire engine will be accurately confirmed to have stopped at the designated wharf location in Coke Wharf, and the door of the fire engine will be opened to ensure a good evacuation operation. This is what I did.

That is, the present invention has a fire extinguisher that is operated in conjunction with an extruder, is able to run on a track by a winch traction device using a wire rope, and is equipped with an opening/closing door that is kept closed at all times. The calcined coke extruded from the designated furnace chamber of the coke oven by the extruder is deposited on a fire extinguishing vehicle, and the extinguishing vehicle is driven into the fire extinguishing tower to extinguish the coke, and then the designated coke wharf is In a coke oven fire extinguishing vehicle that travels to a wharf location and opens the opening/closing door at the designated wharf location to dispose of coke, the winch traction device includes a traction device that selectively reduces the traction tension on the fire extinguisher vehicle. A tension variable means is provided, and the fire engine is equipped with a compressed air generator, and the compressed air generator is communicated with the compressed air generator through an on-off valve, and the supplied compressed air is used to open and close the door. A door opening/closing actuator is provided for opening and closing the door, and a traction actuating means is provided at the connecting portion of the wire rope and opens the opening/closing valve when the traction tension of the wire rope is reduced to a predetermined set value or less. Further, the Cork Wharf has:
A door opening/closing control device for a coke oven fire extinguishing vehicle, characterized in that a fire extinguishing vehicle position detection means is arranged to detect the stop of the fire extinguishing vehicle at each wharf position and activate the traction tension variable means. be.

[Function] Therefore, in the device of the present invention, in order to drive the fire extinguisher that runs on a predetermined track surface, a traction method using a winch traction device via a wire rope is adopted, so that the fire extinguisher can run on a predetermined track surface. In contrast, only the empty weight or live load of the fire extinguisher is applied, which greatly reduces the load on the track surface, and the door opening/closing actuator allows the fire to be extinguished while the door remains closed. After the car is exposed to the desired calcined coke remains and extinguished the fire, the winch traction device detects that the fire engine has stopped at the designated wharf location, and the winch traction device By temporarily lowering the traction tension of the wire rope by the tension variable means, on the fire extinguishing vehicle side, the traction actuating means is activated to open the on-off valve as the traction tension decreases, and as a result, the compressed air is supplied from the compressed air generator. The compressed air actuates the door opening/closing actuator, thereby allowing the opening/closing door to be opened and the coke to be discharged to the designated wharf location in a good and effective manner.

[Example] Hereinafter, an example of the door opening/closing control device for a coke oven fire extinguishing vehicle according to the present invention will be described in detail with reference to FIGS. 1 to 4.

Fig. 1 is a configuration explanatory diagram schematically showing the outline of the coke oven equipment to which this embodiment is applied, based on the arrangement positional relationship with the coke oven, fire extinguishing tower, and coke wharf, and Fig. 2 is a diagram showing the same equipment. Figure 3 is an explanatory plan and side view showing the wire rope traction system for a fire extinguisher, and Figure 3 is a configuration diagram showing an overview of the fire engine running control system and the opening/closing door opening/closing control system in the same wire rope traction system. Explanatory diagram, 4th
The figure is a side explanatory view schematically showing the configuration of a connecting portion between a fire extinguisher including a compressed air generator and a wire rope in the same equipment.

In the configurations of the embodiments shown in FIGS. 1 to 4, reference numeral 11 indicates a coke oven, 12 a fire extinguishing tower, and 13 a coke wharf. 14 is a fire extinguisher that runs in a controlled manner along a track 17 laid corresponding to each of these parts, and includes an opening/closing door 15. It is also provided with a door opening/closing actuator 16 for opening and closing the opening/closing door 15, and the opening/closing door 15 is always kept closed except when expelling coke. Furthermore, 18 is a sequencer.
It is a system operation control device for controlling the operation of the fire extinguisher 14 and controlling the opening and closing of the opening/closing door 15 via the fire extinguisher 19, and a ROM for storing a CPU for arithmetic processing of each input data, a control program, etc. It is constituted by each RAM for temporarily storing input data, etc., and has a keyboard input device 20 for inputting data such as a control program.

The coke oven 11 is for sequentially firing raw coal that is individually charged into each of the co-located furnace chambers. (As is known, an extruder 21 for extruding the calcined coke from each furnace chamber in the order of completion of firing. A guide for guiding the extruded red hot coke so that it is deposited on the fire extinguishing engine 14. Car 22. In addition, each working machine such as a charging car (not shown) for charging coking coal into each furnace chamber is arranged in each furnace chamber, and each furnace chamber of the coke oven 11 and the coke wharf 13. For example, a proximity switch 23 as a means for detecting the position of the fire extinguishing vehicle in front of the furnace room, and a proximity switch 23 as a means for detecting the position of the fire extinguishing vehicle in front of the furnace room. Proximity switches 24 are provided as vehicle position detection means, each of which detects fixed position stop in front of the furnace chamber 25.
Also, it is possible to perform fixed position stop detection 26 before wharfing.

As for the extruder 21, as in the conventional case, the extruder 21 is controlled by the control command from the system operation control device J8, for example: 1. R ground station 27. Parallel two-wire guided radio line 28. In addition, the extruder 21 is controlled and driven via the 1 and R vehicle upper station 29 attached to the extruder 21, and
The guide car 22 is operated in conjunction with the running operation of the extruder 21, and has a limit switch 30 for confirming that the fire extinguisher 14 is stopped at a fixed position.

The fire extinguishing tower 12 is for extinguishing the red hot coke that is carried on the fire extinguishing engine 14, and the fire extinguishing tower 12 is for extinguishing the red hot coke that is carried on the fire extinguishing engine 14,
The fire extinguisher 1 is located at the end of the
A water tank forms a fire extinguishing space that receives the approach of No. 4, and also serves as a fire extinguishing equipment.

It has a fire extinguishing nozzle and the like, and extinguishing the red hot coke by spraying water is executed by a sequencer 19 based on a control command from the system operation control device 18.

The coke wharf 13 is for receiving extinguished coke that has been extinguished on the fire extinguisher 14 and discharged from the fire extinguisher 14. Said system operation control device】8
14 fire engines designated by and at designated wharf points.
As described above, the stopping of the train is carried out by the individual proximity switches 24 installed at each corresponding wharf location.

In this embodiment, the fire extinguishing vehicle 14 uses a wire rope traction system as shown in FIGS. 2 and 3.

That is, in the traveling machine room 31 disposed on the base end side of the track 17, a winch traction device 32 with a brake mechanism 33 for the brake drum 34 is provided, and a winch traction device 32 for the drive drum 35 of the winch device 32 is provided. The wire rope 37 has a wire rope 37 that is wound multiple times around the track 17 and connected to the fire extinguishing engine 14 through a driven drum 36 provided at the end of the track 17, and connected to the fire engine 14 via a traction actuation means to be described later. By controlling the rotational drive of the drum 35 in the forward and reverse directions, that is, by driving by winch traction control,
The coke oven 11. Fire tower 1
2. It is possible to reciprocate between the coke oven 11° and the coke wharf 13, including fixed position stop operations by the respective proximity switches 23, 24 in the coke oven 11° and the coke wharf 13.

In addition, the wire rope 37 is designed to prevent slipping on the drive drum 35 by absorbing the length of the wire during normal running and the slack of the wire at the start of running. The tensioning roller 31 of the set is located on the return side not directly connected to the
A main weight mechanism 38 consisting of a tension roller 40 loaded with a required tension load 41 for 1.39 seconds is provided, and on the return side, in accordance with the detection 26 of the front foot position of the wharf by the proximity switch 24, The traction tension variable means 42 for selectively lowering the traction tension of the wire rope 37 includes a set of tension rollers 43.43 and each tension roller 43.43.
The tension reduction actuator 45 operates between the two.

The pulling tension of the wire rope 37 is intentionally lowered, that is, a tension roller 44 is disposed to be operated to temporarily loosen the pulling tension.

The winch traction device 32 also includes a drive drum 35.
An encoder 4 detects the number of rotations and each rotational angle position 481 and detects the rotation speed 49 and outputs this as data.
7 is provided, and the rotational drive of the drive drum 35 in the forward and reverse directions by the winch traction device 32 and the selective operation of the tension reduction actuator 45 are controlled by control commands from the system operation control device 18. , by the winch control device 50, and the brake mechanism 33 is controlled by the winch control device 50 to brake the brake drum 34, thereby accurately stopping the fire engine 14 at each of the respective orientations 1 set above. .

Accordingly, the fire engine 1 on the track 17''-
By performing the traveling operation in step 4 by wire rope pulling by the winch traction device 32, the load weight on the raceway surface can be reduced to about 1 inch, thereby preventing excessive weight burden. Fluctuations in the position of the track surface can be effectively prevented, making it possible to secure the relative positional relationship of the track surface and fire extinguisher with respect to the furnace body, fire tower, coke wharf, etc.; This makes it possible to eliminate the need for energizing trolley wires.

The fire engine 14 also includes a proximity switch (fr+4) for detecting each stop of localization in front of the furnace chamber; And a conductive plate h51 corresponding to each proximity switch 24 for detecting the stop of the wharf positioning is provided, as described above.
On the vehicle, a door opening/closing actuator 16 for an opening/closing door 15 for discharging the dead coke and extinguished coke is arranged. A compressed air generation source used for operating the door opening/closing actuator 1B, in this case, an electric motor 53. An air compressor 54 that is driven by the electric motor 53 to generate compressed air. An air compression device 52 is installed, which includes an air tank 55 that stores the generated compressed air at a required pressure.
The air compressor 52 can be supplied to the door opening/closing actuator 16 via the air compressor 52, for example, during fire extinguishing operations that require a relatively long period of time in the fire extinguishing tower 12. The compressed air in the required amount and pressure can be stored in the air tank 55 during this time, and the compressed air pressure stored in the air tank 55 can be controlled by a pressure switch. 56, etc., and although not shown in the drawings, the output is used to avoid excessive pressure increase by appropriate means.

Further, at the connecting connection portion of the wire rope 37 in the winch traction device 32 to the fire engine 14, the traction tension of the wire rope 37 is reduced to a predetermined setting value or less. A traction actuation means 58 is provided which detects that the traction tension of the wire rope 37 is intentionally lowered by the tension variable means 42 and opens the on-off switching valve 57. As this traction actuating means 58, a bell crank 6° is pivotally supported on a support portion 59 at the end of the vehicle body.
A wire rope 37 is tied at one end, and an operating rod 61 having a striker 62 is pivotally supported at the other end, and the wire rope 37 is held under pressure in the tension direction against the bell crank 60. A tension spring 63 is suspended, and when the pulling tension of the wire rope 37 is reduced, the bell crank 60 is actuated in the non-tension direction by the tension spring 63, and the opening/closing switching valve 57 is opened by the striker 62. The door 15 of the fire engine 14 can be opened by operating the door opening/closing actuator 16, and when the traction tension is returned to its original state, the door can be opened/closed again by the reverse operation. Door 15 can be closed.

Therefore, in the door opening/closing control device having the configuration of this embodiment, when the fire engine 4 is stopped at a designated wharf location, that is, when the proximity switch 24 detects the approach of the conductive plate 51, the detection signal is is input to the system operation control device 18, and based on the control command from the system operation control device 18, the winch control device 50 operates the traction tension variable means 42 to reduce the traction tension of the wire rope 37. In addition to operating the traction actuation means 58, the door opening/closing actuator 1 is activated via the opening/closing switching valve 57.
6, the opening/closing door 15 can be opened and the loaded coke can be discharged to the designated wharf location as expected, and after the discharge is completed, the traction tension is returned to the predetermined value. Then, the opening/closing door 15 can be closed again.

Note that the use of the compressed air stored in the air tank 55 is not limited to simply operating the opening/closing door 15 as described above (for example, for emergency braking of the fire engine 14, etc.). Of course, it also applies to

[Effects of the Invention] As detailed above, according to the device of the present invention, a traction method using a winch traction device via a wire rope is adopted for driving a fire extinguisher that runs on a predetermined track surface. As a result, only the empty weight or the loaded load of the fire extinguisher is loaded on the track surface, and the weight loaded on the track surface is significantly reduced compared to the conventional method.
This effectively prevents the positional fluctuation of the raceway surface due to excessive weight burden, which has been a problem in the past, and as a result, the raceway surface for the reactor body, fire tower, coke wharf, etc. It is possible to secure the relative positional relationship of the fire extinguisher, and when the door is kept closed by the door opening/closing actuator, the desired calcined coke remains and the fire is extinguished. When the fire engine position detection means detects that the fire engine has stopped at the designated wharf location, the winch traction device uses the detection signal to temporarily reduce the traction tension of the wire rope using the traction tension variable means. On the fire extinguishing vehicle side, as the traction tension decreases, the traction actuating means is activated to open the opening/closing valve, and as a result, the compressed air supplied from the compressed air generator activates the door opening/closing actuator to open/close the door. It has excellent features such as being able to open the door and, in turn, discharge coke to the designated wharf location in a good and effective manner, and also being relatively simple and easy to construct.

[Brief explanation of the drawing]

FIG. 1 is a structural explanatory diagram schematically showing an overview of coke oven equipment to which an embodiment of the fire engine door opening/closing control device according to the present invention is applied, based on the positional relationship with a coke oven, a fire tower, and a coke wharf. , Fig. 2 is a plan view and a side view showing the wire rope traction method for the fire engine in the same facility;
The figure is a configuration explanatory diagram showing the outline of the running control system of the fire extinguisher and the opening/closing control system of the opening/closing door in the same wire rope traction method. FIG. 3 is a side explanatory view schematically showing the configuration of a connecting portion. 11...Coke oven, 12...Fire tower, 13
...Coke Wharf, 14...Fire truck, 15...
...Opening/closing door of fire engine, J6...Actuator for opening/closing door, I7...Track, 18...System operation control device, 19...Sequencer 20...Keyboard input device , 21... Extruder, 22... Guide car, 2
3, 24... Proximity switch, 32... Winch traction device, 33... Brake mechanism, 35... Conductive shoe, 36... Contact, 34...
... Brake drum, 35 ... Drive drum, 36 ... Driven drum,
37... wire rope for traction, 38... main weight mechanism, 39... tension roller, 40... tension roller, 41... tension load, 42... traction tension variable means, 43... tension roller, 44... tension roller,
45... Actuator for tension reduction operation, 47...
- Encoder, 50... Winch control device, 51... Conductive plate, 52... Air compression device, 53... Electric motor,
54... Air compressor, 55... Air tank, 57... Open/close switching valve, 58... Traction actuation means, 60... Bell crank, 61... Actuation rod, 62...Striker-63...Tension spring.

Claims (1)

[Claims] (1) It has a fire extinguisher that is operated in conjunction with the extruder, is able to run on the track by a winch traction device using a wire rope, and is equipped with an opening/closing door that is kept closed at all times. The calcined coke pushed out from the designated furnace chamber of the coke oven is deposited on a fire extinguishing vehicle, and the fire extinguishing vehicle is moved into the fire extinguishing tower to extinguish the coke, and then to the designated wharf location of the coke wharf. In a coke oven fire extinguishing vehicle that travels and opens the opening/closing door at the designated wharf location to dispose of coke, the winch traction device includes a traction tension variable means for selectively lowering the traction tension for the fire extinguishing vehicle. Further, the fire extinguishing vehicle is equipped with a compressed air generator,
A door opening/closing actuator is provided which is communicated with the compressed air generating device via an on-off valve and operates the opening/closing door using the supplied compressed air. The coke wharf is provided with a traction actuation means that opens the on-off valve when the traction tension of the coke wharf is reduced to a predetermined set value or less, and the coke wharf is further provided with a traction actuation means that detects the stop of the fire engine at each wharf location. A door opening/closing control device for a coke oven fire extinguishing vehicle, characterized in that a fire extinguishing vehicle position detecting means for operating the traction tension variable means is arranged.