JP2000044958A - Cleaning apparatus for heat storage chamber of coke oven - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for saving the labor of work concerning a nozzle plate, i.e., a heavy manual work, and the labor of work for cleaning a heat storage chamber by mounting a take-out and push-in apparatus of the nozzle plate and a gas blow apparatus of a gas channel on a railless running apparatus. SOLUTION: This cleaning apparatus comprises a take-out and push-in apparatus 10 for a nozzle plate, a gas blow apparatus 30 for a gas channel, an oil supply apparatus 42 for supplying a pressure oil, a control panel 41 for supplying electric power, and a railless running apparatus 43 carrying the foregoing apparatuses. The take-out and push-in apparatus 10 for a nozzle plate comprises a guide plate having an inclined part at the middle, a housing shelf having a plurality of shelf parts, a forwards and backwards movable gripping means for housing or taking out nozzle plates in or from the housing shelf, and a lift of the housing shelf. The gas blow apparatus 30 for a gas channel comprises a telescope-type expansion pipe having a gas blow nozzle at its end, a flexible hose installed in the expansion pipe and for supplying a compressed air to the gas blow nozzle, a winding reel for the flexible hose, and a guide plate for guiding the expansion pipe to a cleaning port.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for blowing and cleaning a gas passage in a heat storage chamber of a coke oven.

[0002]

2. Description of the Related Art As shown in FIG. 12, combustion air and fuel gas supplied to a combustion chamber 1 of a coke oven are supplied to a gas flow in a heat storage chamber where heat is stored from a SOLUFL-3 located below a heat storage chamber 2. Road 4
Through the combustion chamber. On the other hand, the high-temperature exhaust gas generated by the combustion gives heat to another heat storage chamber adjacent to the above-mentioned heat storage chamber to become low-temperature exhaust gas, and a lower source (not shown) is formed.
It is discharged from the chimney via Ruffle and the flue. Then, the combustion system is switched every predetermined time, and the combustion air or fuel gas and the high-temperature exhaust gas flow alternately in the adjacent heat storage chamber.

[0003] For this reason, soot and dust adhere to the brick wall forming the gas flow path 4 of the heat storage chamber, which disturbs gas distribution and lowers combustion efficiency. There is a need to do. Particularly, in a coke oven having a nozzle plate 6 for controlling the distribution of gas at the upper part of the SOLUFL-3, it is necessary to take out the nozzle plate outside the furnace before cleaning and insert the nozzle plate into the furnace after cleaning. Accompany. The nozzle plate is mounted with a number of plates connected by pins.

[0004] Cleaning is performed by inserting a pipe 5 having a nozzle at the tip into the lower part of the heat storage chamber and blowing compressed air.

As a cleaning device, Japanese Utility Model Application Publication No.
No. 444 is disclosed. This is a suction cleaning tool provided with a heat-resistant and flexible seal material at the tip of the suction pipe toward the lower part of the flow path of the heat storage chamber, and provided with a suction pipe elevating mechanism.

[0006]

However, a method of inserting a tube with a nozzle is also disclosed in Japanese Utility Model Publication No. 56-8744.
The method using the cleaning tool of No. 4 also requires two or three cleaning personnel and has a problem that it is a heavy muscle work. Further, in a coke oven provided with the nozzle plate as described above, the work of taking the nozzle plate out of the furnace and the operation of inserting the nozzle plate into the furnace before and after cleaning are added as heavy straining work by a person. There's a problem.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an apparatus that can save labor related to a nozzle plate, which is a heavy-strength work, and cleaning work of a heat storage chamber.

[0008]

SUMMARY OF THE INVENTION The present invention provides the above object,
A take-out / press-in device for a nozzle plate, an air blowing device for a gas flow path, a hydraulic device for supplying pressure oil, a control panel for supplying electric power, and a trackless traveling device equipped with these components. A take-out / push-in device for a nozzle plate includes a guide plate having an inclined portion in the middle, a storage shelf having a plurality of shelves, a gripping means movable back and forth for storing or taking out the nozzle plate to / from the storage shelf, and a storage shelf. The air blowing device of the gas flow path is provided in a telescopic telescopic tube having a blowing nozzle at the tip, and is disposed in the telescopic tube,
A flexible hose for supplying compressed air to the blowing nozzle,
This is achieved by a cleaning apparatus for cleaning a heat storage chamber of a coke oven, which comprises a winding reel for winding a flexible hose and a guide plate for guiding an expandable tube to a cleaning port.

[0009] The apparatus of the present invention is designed to take out a nozzle plate.
Since the push-in device and the air blowing device for the gas flow path are mounted on the trackless traveling device, the cleaning work of the heat storage chamber and the nozzle plate in the furnace have been conventionally performed by two or three workers. Can be carried out by a single operator operating and operating on the machine side.

In addition, the cooperation of the guide plate having an intermediate inclined portion, the gripping means capable of moving back and forth, and the storage shelf which moves up and down releases the connected nozzle plate and stores it in the storage shelf. Can be taken out, connected and pushed into the furnace. As a result, it is possible to eliminate such heavy muscle work conventionally performed manually.

[0011] Further, by the cooperation of a telescopic telescopic tube, a hose and a winding reel arranged in the telescopic tube,
Since the blowing nozzle can be fed into and pulled out of the furnace, cleaning work can be saved.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view showing the arrangement of the apparatus of the present invention, FIG. 2 is a plan view showing the arrangement of the apparatus of the present invention,
FIG. 3 is a front view showing a storage frame of the nozzle plate according to the apparatus of the present invention, FIG. 4 is an explanatory view of a connection work between the nozzle plate and the dummy plate, and FIG. 5 is a nozzle plate in the furnace. FIG.

As shown in FIGS. 1 and 2, the apparatus of the present invention is equipped with a nozzle plate take-out / push-in device 10, a gas blowing device 30 for a gas flow path of a heat storage chamber, a control panel 41, and a hydraulic device 42 for running. A trackless traveling device 43 is provided. As the trackless traveling device 43, a self-propelled bogie equipped with an internal combustion engine or an electric motor is used.

Nozzle plate take-out and pushing device 10
Will be described with reference to FIGS. First, the target nozzle plate will be described with reference to FIGS. The nozzle plate 6 has a rectangular shape,
A number of holes 6a are provided for distributing the gas from the pump. A connecting pin 6b is attached to one end of the nozzle plate, and two holes 6d through which the pin 6b is inserted are formed in the other end. Then, the pins 6b are inserted into the holes 6d of the adjacent nozzle plate to connect the nozzle plates 6,6. A grip plate 6c is attached near the inside of the hole 6d and perpendicular to the width direction of the nozzle plate.
The gripping plate 6c is used when the connected nozzle plate is pulled out of the furnace to release the connection, or when the nozzle plate is pushed into the furnace while being connected outside the furnace. The connected nozzle plates are placed on the left and right shelves formed on the upper part of the solar flue.

Reference numeral 20 denotes an elevating device installed on the traveling device 43, which elevates the link mechanism by expanding and contracting a link mechanism by a hydraulic cylinder (not shown). The storage shelf 11 of the nozzle plate is mounted on the lifting device 20. A plurality of shelves 12 extending in the front-rear direction for receiving the nozzle plate are provided on the left and right inner side surfaces of the storage shelf 11 at intervals in the vertical direction.

Reference numeral 21 denotes a machine frame provided on the traveling device 43. The storage shelf 11 moves up and down in the machine casing 21. Reference numeral 19 denotes a guide rail for guiding the nozzle plate 6 into the storage shelf 11 and guiding the gripping means 18 for extracting the nozzle plate 6 stored in the storage shelf 11 in the front-rear direction. The guide rail 19 is provided between the left and right shelves of the storage shelf as shown in FIG.

The rear end of the hydraulic cylinder 13 is pivotally connected to a bracket 13a provided at the rear center of the upper part of the machine frame 21. A bracket 16 is mounted on the machine frame, and one end of a link 14 is fixed to a shaft 16 a supported by the bracket 16. A hydraulic cylinder-rod is pivotally connected to the other end of the link 14. 2 connected to the shaft 16a
One end of the link 17 of the book is fixed. The other end of the link 17 is pivotally connected to the center of the gripper 18. The gripping means 18 can run along a guide rail 19 by rollers mounted before and after the center. Therefore, when the rod of the hydraulic cylinder 13 is extended, the gripping means 18 moves rearward, and the hydraulic cylinder 1
When the rod 3 is shortened, it moves forward. Gripping means 1
8 has a grasping claw 18a at a lower portion, and has a structure in which the grasping claw is opened and closed by vertically moving a rod for opening and closing the grasping claw.

Due to the structure of the coke oven, the front face of the nozzle plate take-out / push-in device 10 of the cleaning device is provided with a nozzle plate.
Even if it approaches the outlet of the plate to the maximum, there is a gap between the extraction / pressing device and the outlet of the nozzle plate. A guide plate 51 for bridging this interval is attached to the machine frame 21 on the front of the pushing device 10. The guide plate 51 has an inclined portion 51a for releasing the engagement of the pin of the nozzle plate connected in the middle and for engaging the pin on the contrary. 52 is a support cylinder for the guide plate 51. A reaction force receiving member 53 for receiving a reaction force when the nozzle plate is pushed into the furnace is provided on the rear surface of the take-out and pushing device. 54 is a supporting cylinder. 55 is a work floor, and 56 is a wall provided on the side of the work floor.

The gas flow blowing device 30 will be described with reference to FIGS. Reference numeral 31 denotes a hose take-up reel mounted on the traveling device 43 via a bracket.
Is driven to rotate. A mounting base 30a is provided on a winding reel 31 of a flexible hose. The mounting table 30a is mounted on a traveling device via a support member 30b. Numeral 34 denotes a telescopic telescopic tube, and the largest diameter tube of the telescopic tube 34 is fixed to the mount 30a. As shown in FIG. 9, the telescopic tube 34 is assembled such that a small-diameter tube can freely enter and exit a large-diameter tube adjacent to a plurality of tubes having different tube diameters. Then, seal the front end of the large-diameter pipe.
A flange 34b that functions as a stopper is formed at the rear end of the small-diameter pipe. A header 36 is orthogonally attached to the distal end of the minimum diameter tube of the telescopic tube, and three nozzles 37 are attached to the header 36 at an interval and upward.

A flexible hose 32 is provided in the telescopic tube 34, and the distal end thereof is attached to a header 36.
The rear end of this hose 32 is an end plate at the rear of the largest diameter pipe.
And passes through a space between a pair of clamping rollers 33 provided on the mounting table 30a. Compressed air piping 35 to valve 35
a, Pressurized air is supplied to the pressurized air supply shaft via the hose 35b. A rotary joint is attached to the pressurized air supply shaft, and the hose 35b is connected to the pressurized air supply shaft via the rotary joint.

Arms 38 extending leftward and rightward are attached to both sides of the front end of each telescopic tube 34, and a slider 39 having an upwardly warped tip is fixed to the tip of each arm 38. I have. As shown in FIG. 11, the distance between the left and right sliders 38, 38 is equal to the distance between the upper shelves 3a, 3a of the SOLUFL-3.

Pressurized air is supplied from a supply pipe (not shown) into the maximum diameter pipe (fixed to the mounting table 30a) of the telescopic pipe. When pressurized air is supplied to the inside of the largest diameter pipe, the air pressure acts on the flange 34b of the telescopic pipe to push each telescopic pipe forward and expand it as shown in FIG. An escape hole 34c for the compressed air of the smallest diameter tube of the telescopic tube is provided, and excess air leaks out from the escape hole 34c. The ambient temperature at the bottom of the heat storage chamber during cleaning is 200 to 300
Although the temperature is ° C, the hose 32 is insulated and cooled because air flows inside the telescopic tube, so that a normal rubber hose for pressurized air can be used satisfactorily.

When reducing the length of the telescopic tube 34, the supply of pressurized air to the telescopic tube is stopped, and the winding reel 31 is rotated in the winding direction. The hose 32 is a reel 3
1 and a header at the tip of the hose 32.
The tube 36 moves backward, and the telescopic tube sequentially moves backward and contracts.

As described above, due to the structure of the coke oven, even if the air blowing device is moved to the maximum at the outlet of the nozzle plate,
There is a gap between the blowing device and the outlet of the nozzle plate. A guide plate 57 is provided on the front of the air blowing device to bridge this gap.

The control panel 41 is for supplying electric power to a drive motor for the winding reel, a motor for driving the hydraulic pump, and the like, and the hydraulic device 42 is for a device for taking out and pushing in the nozzle plate. This is for supplying pressure oil to a hydraulic cylinder and a hydraulic cylinder for a lifting device.

Next, the operation of taking out and pushing in the nozzle plate using the apparatus of the present invention and the cleaning of the air blow will be described below.

"Removal and push-in work of nozzle plate;
See FIG. 5. "(1) Remove the lid of the cleaning port of the heat storage chamber to be cleaned. (2) Operate the traveling device 43 to position the take-out / push-in device at the cleaning port 7 and stop it. (3) The guide plate 51 is bridged over the cleaning port by operating the support cylinder -52. On the other hand, a support cylinder-5 provided on the rear surface
4 is operated to bring the distal end of the reaction force receiving member 53 into contact with the side wall 56. (4) Connect two dummy plates to the nozzle plate of the cleaning port. The lifting device 20 is moved up and down, and the lowermost shelf 12 of the storage shelf is adjusted to the level of the guide plate, and the hydraulic cylinder
13 and the gripping means 18 to operate the first dummy pre-press.
The grasping plate 6c is stored in the lowermost shelf 12. At this time, the first nozzle plate in the furnace is pulled out onto the guide plate. (5) Release the gripping claws 18a, move the gripping means forward to bring it on the second gripping plate, and lower the elevating device to adjust the shelf on the next level to the level of the guide plate. (6) Hold the gripping plate with the gripping claws and hold the second dummy
Is stored in the second shelf. At this time, the second nozzle plate in the furnace is pulled out onto the guide plate. (7) The operations of (5) and (6) are repeated one after another, and all the nozzle plates in the furnace are stored in the storage shelf.

While the nozzle plate in the furnace is pulled out onto the guide plate, the nozzle plate is blown and cleaned by blowing means 8 provided on the cleaning port.

The operation of pushing the nozzle plate into the furnace may be performed in the reverse order of the above-described removal operation. That is, if the uppermost nozzle plate of the storage shelf is pushed out onto the guide plate by the gripping means, and the nozzle plate is pushed out one after another on the guide plate while the shelves are raised one step at a time by the lifting device. As shown in FIG. 4, the nozzle plate is connected by the action of the inclined portion 51a of the guide plate, and all the nozzle plates are installed on a shelf in the furnace. Finally, remove the two dummy plates,
By operating the support cylinders 52 and 54, the guide plate and the reaction force receiving member are flipped up so as not to hinder the movement of the apparatus.

"Blow cleaning; FIGS. 8 to 11" (1) The traveling device 43 is operated to position the blow cleaning device at the cleaning port 7 and stop. (2) Operate the support cylinder -58 to bridge the cleaning port with the guide plate 57. (3) The hose 35b connects the pressure air supply shaft of the winding reel 31 and the pressure air pipe 35. (4) The take-up reel is idled, and pressurized air is supplied to the telescopic tube 34 to extend the telescopic tube. At this time, the hose 32 in the telescopic tube is rewound and extended together with the telescopic tube. When the nozzle 37 enters the furnace, the valve 35a is opened to start air-cleaning, and when the telescopic tube reaches the innermost part of the heat storage chamber while extending, the supply of air to the telescopic tube is stopped. Whether or not the nozzle has reached the innermost part of the heat storage chamber can be determined by processing the signal of the pulse generator mounted on the shaft of the winding reel or the drive motor shaft. (5) The winding reel is driven to rotate in the winding direction, and the hose in the telescopic tube is wound. As the hose is wound, the telescopic tube is contracted, and the nozzle and the telescopic tube are stored on the mounting table 30a as shown in FIG. The cleaning can be continued by supplying cleaning pressure air during the process of returning the nozzle from the innermost part of the heat storage chamber to the cleaning port. (6) The guide plate 57 is flipped up by operating the support cylinder -58.

As described above, each operation has been described individually.
The cleaning operation of the heat storage chamber flow path is performed in the following order.

Removal of the lid of the cleaning port → Take out the nozzle plate → Blow cleaning → Push the nozzle plate into the furnace → Install the lid of the cleaning port.

[0034]

According to the apparatus of the present invention, a nozzle plate take-out / press-in device and a gas flow passage blowing device are mounted on a trackless traveling device. The work of cleaning the heat storage chamber and the work of removing and pushing in the nozzle plate in the furnace can be performed by one operator operating the machine. This allows
The conventional heavy work can be labor-saving.

[Brief description of the drawings]

FIG. 1 is a side view showing an arrangement of devices of the apparatus of the present invention.

FIG. 2 is a plan view showing an arrangement of devices of the apparatus of the present invention.

FIG. 3 is a front view showing a storage frame of a nozzle plate according to the apparatus of the present invention.

FIG. 4 is an explanatory view of a work of connecting a nozzle plate and a dummy plate.

FIG. 5 is a front view illustrating a state of taking out a nozzle plate from a furnace by the apparatus of the present invention.

FIG. 6 is a plan view of a nozzle plate.

FIG. 7 is a side view of the nozzle plate.

FIG. 8 is a front view of the air blowing device according to the present invention.

FIG. 9 is a partial longitudinal sectional view (extended state) of the telescopic tube of the air blowing device according to the present invention.

FIG. 10 is a partial plan view (extended state) of the telescopic tube of the air blowing device according to the present invention.

FIG. 11 is an explanatory view showing a state in which a telescopic tube of the air blowing device according to the present invention is placed on a shelf in a furnace.

FIG. 12 is an explanatory view of a conventional heat storage chamber cleaning method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Combustion chamber 2 Heat storage chamber 3 Sole flute 4 Gas flow path 6 Nozzle plate 10 Removal / push-in device 11 Storage shelf 12 Shelf part 13 Hydraulic cylinder 18 Grasping means 18a Gripping claw 19 Guide rail 20 Lifting device 21 Machine frame Reference Signs List 30 air blowing device 31 winding reel 32 hose 34 telescopic tube 36 header tube 37 nozzle 38 arm 39 slider 41 control panel 42 hydraulic device 43 traveling device 51 guide plate 51a inclined portion 57 guide plate

Claims (1)

[Claims] 1. A device for removing and pushing in a nozzle plate, a blowing device for a gas flow path, a hydraulic device for supplying pressure oil, a control panel for supplying electric power, and a trackless traveling device equipped with these components. A guide plate having an inclined portion in the middle, a storage shelf having a plurality of shelves, and a grabber movable back and forth for storing or taking out the nozzle plate from / to the storage shelf. Means and a storage rack elevating device, wherein the air blowing device of the gas flow path is provided with a telescopic telescopic tube having a blowing nozzle at the tip, A flexible hose for supplying pressurized air to the nozzle, a winding reel for winding the flexible hose, and a guide plate for guiding the telescopic tube to the cleaning port. -A heat storage chamber cleaning device for a gas furnace;