JPH04106192A - Apparatus for preventing runaway of coke oven quenching car - Google Patents

Abstract

PURPOSE:To prevent the runaway of a coke oven quenching car on the track due to the cutting of a wire rope, etc., by providing on the quenching car a means for controlling the running wheels based on the output from a means for detecting tractive tension. CONSTITUTION:In the brake mechanism 16 of a quenching car, when a wire rope 37 is cut for some reason, e.g. mechanical fatigue, etc., due to long-term use, a means 52 for detecting tractive tension detects the cutting to open an operation change-over valve 49 by the action of a striker 56. By this opening, compressed air stored in an air tank 47 is fed into brake cylinders 50, which operate brake shoes 51 to brake running wheels 15. In this case, it is possible to stop the quenching car 14, which has been running by a winch unit by means of the wire rope 37 and is still running due to inertia even when the wire rope 37 is cut, at the detected position urgently.

Description

[Detailed Description of the Invention] r Industrial Application Field] This invention relates to a runaway prevention device for a coke oven fire extinguishing vehicle.
More specifically, the present invention relates to a runaway prevention device for a coke oven fire extinguishing vehicle that is driven by wire rope pulling means.

[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 into 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. In addition, a trolley wire is installed above the trolley wire, and while following the track, the fire extinguisher is towed by an electric car that receives power from the trolley wire and is driven. It is equipped with an electric compressor, a compressed air tank, etc. as a compressed air source used to open and close the door or brake and stop the fire extinguisher itself.

The operation control of a fire extinguisher in a coke oven with the above configuration is generally performed by a worker in the driver's cab of an electric car pulling the fire extinguisher, and the operation procedure is as follows: In a coke oven configuration, raw coal is sequentially charged and fired into each furnace chamber using a charging car, and then an extruder, a guide car, and a fire extinguisher are installed at the corresponding furnace chamber position where the furnace is discharged from the kiln. The fire extinguisher is parked with accurate alignment, and the extruder extrudes the red hot coke of the burned coke (S). Red-hot coke is loaded on top of the car with the opening/closing door closed, and the carcasses are deposited. After loading, the fire extinguishing truck is driven toward the fire tower, stopped accurately at a predetermined position inside the fire tower, and 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 being thoroughly drained, the fire extinguishing truck is driven towards the coke wharf and sent to the designated wharf. The furnace is stopped precisely in front of the wharf point, and then the opening/closing door is opened to discharge the extinguished coke onto the specified wharf point.In this way, the own kiln receiver completes its work, and from now on, This operation is repeated sequentially for each furnace chamber to continuously carry out the required unloading of the kiln.

[Problems to be Solved by the Invention] By the way, regarding the operation of the above-mentioned coke oven fire extinguishing vehicle, the interaction with other working machines such as guide vehicles and extruders is extremely important, and for this purpose, Normally, it is necessary for workers in each department to communicate with each other using communication means such as wired or wireless telephones, and to proceed with work while checking the working status and working position of each working machine. be.

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 Due to their heavy weight, the relative position of the raceway surface with respect to the furnace body, fire tower, coke wharf, etc. tends to fluctuate (and this raceway surface itself cannot be used as a reference surface for operation).
Effective automatic control is not necessarily possible, and in order to withstand such excessive load weight, sufficient concrete foundation structure must be constructed to increase the strength of the track method, which requires a lot of foundation construction costs. was necessary.

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

During the firing process, the loading and unloading of the coke to be extinguished, and the extinguishing process, dust tends to scatter and fly up, and the operating atmosphere is extremely poor. Various undesirable problems have also arisen in the power supply from the trolley wire to the electric compressor on the traction vehicle and the fire extinguisher vehicle under such a poor environment.

This invention was made in order to solve these conventional problems, and its purpose is to improve the operation method for running a fire extinguisher in coke oven equipment using a wire rope. A fire extinguishing vehicle runs out of control on the track due to the wire rope being cut due to the winch towing method. This prevents the vehicle from losing control and running inertia on the track in S mode. An object of the present invention is to provide a runaway prevention device for a coke oven fire extinguishing vehicle of this type.

[Means for Solving the Problem] In order to achieve the above-mentioned object, a runaway prevention device for a coke oven fire extinguishing vehicle according to the present invention provides a system for preventing runaway of a coke oven fire extinguishing vehicle. In order to prevent the fire extinguishing vehicle from running out of control due to breakage of the wire rope during towing with the winch traction method, the traction tension of the wire rope is monitored and the traction tension is kept below a predetermined set value. When the temperature drops to below 100, the running wheels of the fire extinguisher are braked to stop the fire extinguisher at the detected position.

That is, the present invention has a fire extinguisher with running wheels that is connected to a traction device using a wire rope as a running means and that runs in a controlled manner on a track in conjunction with the running operation of an extruder. The calcined coke pushed out of the designated furnace chamber of the furnace is deposited on a fire extinguishing vehicle, and the extinguishing vehicle is driven into a fire extinguishing tower to extinguish the coke,
Next, in the coke oven fire extinguishing vehicle that travels to a designated wharf location in the coke wharf and discharges the treated coke, the connecting portion of the wire rope to the fire extinguishing vehicle in the traction device monitors the traction tension of the wire rope. and a traction tension detection means for detecting and outputting the traction tension below a predetermined set value, and a braking means for braking the running wheels based on the detected output of the traction tension detection means on the fire extinguisher. This is a runaway prevention device for a coke oven fire extinguishing vehicle.

[For writing]

Therefore, in the device of the present invention, a traction method using a winch traction device via a wire rope is adopted for the running operation of the fire extinguisher that runs on a predetermined track surface. Only the empty weight or live load of the fire extinguisher is applied, which significantly reduces the load weight on the track surface, and the conventional trolley wire for energizing electric cars can be abolished. A traction tension detection means for monitoring the traction tension of the wire rope is provided at the connecting connection part of the wire rope to the fire extinguisher,
When the traction tension falls below a predetermined set value, that is, due to an accident such as a breakage while the fire extinguisher is towing, the traction tension of the wire rope falls below the predetermined set value, and the fire engine traction control is disabled. Since the running wheels of the fire extinguisher are braked when the fire engine becomes disabled, it is possible to effectively prevent the fire extinguisher from running out of control due to inertia during towing.

[Example] Hereinafter, an example of the runaway prevention device for a coke oven fire extinguisher according to the present invention will be described in detail with reference to FIGS. 1 to 4.

FIG. 1 is an explanatory diagram schematically showing the outline of the coke oven equipment to which this embodiment is applied based on the positional relationship with the coke oven, fire extinguishing tower, and coke wharf, and FIG.
, (b) is a plan view and a side view of each configuration explanatory diagram showing the wire rope traction method of the fire extinguisher in the same facility, and FIG. FIG. 4 is a side explanatory view schematically showing the general structure of the emergency stop means of the fire extinguisher.

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 running wheels 15. It also has a fire extinguisher brake mechanism 16 for braking the running wheels 15. Furthermore, 18 is a system operation control device for controlling the operation of the fire extinguishing truck 14 via a sequencer 19 as necessary, and a CPtJ for arithmetic processing of each input data, etc.
It consists of a ROM that stores control programs, etc., and a RAM that temporarily stores each input data, etc.
It also has a keyboard input device 20 for inputting data such as control programs.

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, extruder 21. A guide car 22 guides the extruded red hot coke so that it is deposited on the fire extinguisher 14. In addition, each working machine such as a charging car (not shown) for charging coking coal into each furnace chamber is installed. Also, individual position detection means 1 for regulating the stopping of the fire extinguishing engine 14 at a fixed position correspond to each oven chamber of the coke oven 11 and each wharf location of the coke wharf 13. for example,
Proximity switches 23 and 24 are provided to enable stop detection 25 at each fixed position in front of the furnace chamber wharf, and for each wharf location, an opening/closing device for an opening/closing door (not shown) of the fire engine 14 is activated at the relevant position. , an outer actuator 26 for discharging coke is disposed.

As for the extruder 21, in accordance with control commands from the system operation control device 18, as in the conventional case, 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/toss 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 carried on the fire extinguishing engine 14, and
It has a fire extinguishing space in the lower part of the interior that receives the entry of the fire engine 14, and a tank water tank and a fire extinguishing nozzle that store water for extinguishing fires in the upper part of the space. etc., and are operated based on control commands 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, and the coke receiving wharf location is as described above. System operation control device 18
At the same time, the stopping of the fire extinguisher 14 at the designated wharf location is done by the individual proximity switch 24 installed at each applicable wharf location, as described above, and the fire extinguisher 14 is stopped at the designated wharf location. The discharge of coke from 14 is carried out by activating the outer actuator 26.

In addition, as a driving means for the above-mentioned fire extinguishing vehicle 14, in the case of this embodiment, a wire rope traction method is adopted as shown in FIGS. 2(a), (b) and FIG. 3.

That is, in the traveling machine room 31 disposed on the base end side of the track 17, a winch device 32 with a traction brake mechanism 33 for the brake drum 34 is provided, and a winch device 32 for the drive drum 35 of the winch device 32 is provided. It has a wire rope 37 that is wound multiple times around the vehicle body of the fire extinguishing vehicle 14 through a driven drum 36 provided at the end of the track 17, and connected to the front and rear of the vehicle body of the fire engine 14. The track 1 laid by a controlled rotary drive in the opposite direction, i.e. by winch traction control.
7, the coke oven 11. Fire tower 12. and the coke wharf 13, the coke oven 11. It is designed to be able to travel back and forth, including a stop operation at a fixed position by each of the proximity switches 23 and 24 at the coke wharf 13, and a similar stop operation at a fixed position (not shown) at the fire tower 12.

In addition, regarding the wire rope 37, in order to absorb the wire extension amount and the wire slack at the time of starting running and prevent slipping on the drive drum 35, a return that is not directly connected to the vehicle body of the fire extinguishing vehicle 14 is determined. A main weight mechanism 38 is attached to the side, and a sub-weight mechanism 39 is attached to the turn side.

The winch device 32 also includes a drive drum 3.
An encoder 40 is provided to detect the rotational speed and rotational angular position 411 and output the rotational speed as data. is performed by the winch control device 43 in response to a control command from the system operation control device 18, and the traction brake mechanism 33 brakes the drive drum 35 under the control of the winch control device 43, Accurately stopping the fire extinguisher 14 at a fixed position and making an emergency stop of the fire extinguisher 14 at a required position.

Therefore, the fire engine 14 on the track 17
The load weight on the raceway surface can be reduced to approximately th by causing the running operation to be performed by wire rope pulling by the winch device 32.
This effectively prevents positional fluctuations of the track surface due to excessive weight burden, and makes it possible to secure the relative positional relationship of the track surface and fire extinguishing vehicle with respect to the furnace body, fire tower, coke wharf, etc. This makes it possible to eliminate the trolley wires used to carry electricity to electric cars.

Next, the fire engine 14 is equipped with an electric morph 45 as a compressed air generation source. An air compressor 46 operated by the electric motor 45. The air compressor 44 is equipped with an air tank 47 that stores air at a required pressure compressed by the air compressor 46. During fire extinguishing work, which can take a lot of time, it is powered by an appropriate means, and during this time compressed air of the required amount and pressure can be stored in the air tank 47. Although not shown, the compressed air pressure stored in the tank 47 is detected by a pressure switch 48, etc., and the output thereof is used to prevent the pressure from increasing more than necessary.

The fire engine brake mechanism 16 installed in the fire engine 14 includes a brake cylinder 50 connected to the air tank 47 via an operation switching valve 49, and a brake cylinder 50 that is operated by the brake cylinder 50. It is comprised of five brake shoes 51, one pair each, for braking the traveling wheels 15.

Moreover, the winch device 3 for the fire engine 14
At the connecting joint of the wire rope 37 in No. 2, a traction tension detection means 52 is provided for detecting the traction tension caused by the wire rope 37, and this traction tension detection means 52 is provided at both ends of the vehicle body. A bell crank 54 is pivotally supported on a support portion 53 provided at the bell crank 54, and a wire rope 37 is tied to one end of the bell crank 54, and an actuating rod 55 having a striker 56 is attached to the other end.
A tension spring 5 that pivots and holds the wire rope 37 under pressure in the tension direction A against the bell crank 54.
7 is suspended, and when a break in the wire rope 37 is detected, the bell crank 54 is actuated in the non-tension direction B by the tension spring 57, and the striker 56 is activated.
The operation switching valve 49 can be opened in the following manner.

Therefore, the fire engine brake mechanism 16 configured in this manner
Now, if the wire rope 37 is broken due to some reason 1, for example, mechanical fatigue due to long-term use, the traction tension detection means 52 detects this and the striker
56 opens the operation switching valve 49, compressed air stored in the air tank 47 is supplied to the brake cylinder 5o, and the brake cylinder 50 operates the brake shoe 51 to brake the traveling wheels 15. In this case, the winch device 32 causes the fire engine 14, which is running via the wire rope 37 and is about to run due to inertia due to the wire rope 37 to be cut, to be brought to an emergency stop at the detection position. You get it.

In the configuration shown in FIG. 5, the fire engine brake mechanism 1B is provided on the drive drum 35 side of the fire engine 14, but a similar fire engine brake mechanism 16 may also be provided on the driven drum 36 side. Of course, the use of the compressed air stored in the air tank 48 is not limited to simply preventing runaway operations due to the emergency stop operation of the fire extinguishing engine 14 as shown above, but also for preventing the extinguishing engine from running out of control. It is also applied to opening/closing operations of doors.

〔Effect of the invention〕

As described in detail above, according to the device of the present invention, in order to drive a fire extinguishing vehicle that runs on a predetermined track surface, a traction method using a winch device via a wire rope is adopted. When compared to the conventional method, when only the empty weight of the fire engine or the loaded load is applied to the surface,
It is possible to significantly reduce the load weight on the raceway surface (to the extent of 2000), which effectively prevents the positional fluctuation of the raceway surface due to excessive weight burden, which was a problem in the past. In addition to making it possible to secure the relative position of the furnace body, fire tower, coke wharf, etc., and the relative position of the fire engine, it also eliminates the need for conventional trolley wires for energizing electric cars, and eliminates the need for the required strength. The construction cost of the track bed can be significantly reduced, and
A traction tension detection means for monitoring the traction tension of the wire rope is provided at the connecting connection of the wire rope to the fire extinguishing vehicle in the wire rope traction device, and when the fire extinguishing vehicle is towing,
When the traction tension of the wire rope falls below the predetermined set value, that is, due to an accident such as a breakage, the traction tension of the wire rope falls below the predetermined set value, making it impossible to control the running of the fire extinguisher. In some cases, the running wheels of the fire extinguisher are braked, so it is possible to effectively prevent the fire extinguisher from running out of control due to inertia during towing, and it is also relatively simple in structure. It has excellent features such as being easy to configure.

[Brief explanation of the drawing]

FIG. 1 is a structural explanatory diagram schematically showing an outline of coke oven equipment to which an embodiment of the fire engine runaway prevention device according to the present invention is applied, based on the positional relationship with a coke oven, a fire extinguishing tower, and a coke wharf. In addition, Figures 2 (a) and (b) are plan and side configuration explanatory views showing the wire rope traction method of the fire extinguisher in the same facility, and Figure 3 shows the running of the fire extinguisher in the wire rope traction method described above. FIG. 4 is a side view schematically showing the general structure of the emergency stop means of the fire extinguisher. 11...Coke oven, 12...Fire tower, 13
...Coke Wharf, 14...Fire truck, 15...
... Fire truck running wheels, 16... Fire engine brake mechanism, 17... Track, 18... System operation control device, 19... Sequencer 20... Keyboard input device , 21... Extruder, 22... Guide car, 2
3... Proximity switch (detection of fixed position in front of furnace), 24...
・Proximity switch (pre-warf fixed position detection), 26...
・Outer leg actuator, 30...Limit switch (stop at fixed position), 32.
...Winch device (wire rope traction), 33...
・Traction brake mechanism, 34... Brake drum, 35... Drive drum, 36... Driven drum,
37... Wire rope for traction, 38... Main weight mechanism, 39... Sub weight mechanism, 40... Encoder, 43... Winch control device, 44... Air Compressor, 45...Electric motor, 46...Air compressor, 47...Air tank, 48...Pressure switch, 49...Operation switching valve, 50...Brake Cylinder, 51... Brake shoe 52... Traction tension detection means, 53... Support part, 54... Bell crank, 55... Operating rod, 56... Striker. 57...Tension spring.

Claims (1)

[Claims] (1) It has a fire extinguisher with running wheels that is connected to a traction device using a wire rope as a traveling means and runs controlled on the track in conjunction with the running operation of the extruder, and the extruder designates the coke oven. The calcined coke pushed out from the furnace room is deposited on a fire extinguishing vehicle, and the extinguishing vehicle is driven into a fire extinguishing tower to extinguish the coke, and then driven to a designated wharf location in the coke wharf for disposal. In a coke oven fire extinguishing vehicle for discharging finished coke, the connecting portion of the wire rope to the fire extinguishing vehicle in the traction device is equipped with a device that monitors the traction tension of the wire rope and detects that the traction tension is below a predetermined set value. A runaway prevention device for a coke oven fire extinguishing vehicle, characterized in that a traction tension detection means for outputting an output is provided, and a braking means for braking running wheels is provided on the fire extinguishing vehicle for braking running wheels based on the detection output of the traction tension detection means.