JPS6316437B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a charging lid and a charging lid mounting frame (hereinafter collectively referred to as a "charging lid device") that are attached to a coal charging port in a coke oven. The invention relates to a cleaning device.

[Prior art] Several coal charging ports are provided at the top of the coke oven in the width direction of the oven, through which raw coal is charged into the furnace from a hopper mounted on a coal loading car. . Therefore, an annular charging lid and a mounting frame are fitted into the coal charging port, and after charging the raw material coal, the charging lid is removed by the operation of the lid removing machine installed in the coal charging car. Fitted and sealed. In addition, after carbonization is completed and the coke produced is discharged from the furnace,
When raw coal is newly introduced into the furnace, the charging lid is removed from the charging lid mounting frame by the operation of the lid removal machine. Below, in accordance with the charging of raw coal and the carbonization process, the charging lid is attached to and removed from the coal charging port,
Although the loading process is repeated, tar and carbon generated during carbonization adhere to the mating surfaces of the loading lid and loading frame, making it difficult to attach and remove the loading lid smoothly. It often happens that there is no. Conventionally, therefore, a method has been adopted in which the fitting surface is cleaned when the charging lid is attached and detached. Specifically, while maintaining the fitting between the charging lid and the charging lid mounting frame in a slightly loosened state, the charging lid body is rotated forward and backward in the circumferential direction by an external force, and is swung. Scrape off any tar or carbon by rubbing the mating surfaces of the charging lid and the charging lid mounting frame together, and then remove the charging lid from the charging lid mounting frame using the lid removing machine. This method uses a charging lid cleaning device installed on the charging car in the reverse position to mechanically scrape off the tar and carbon attached to the peripheral fitting surface of the charging lid itself using a scraper. However, all of these methods require
This is not necessarily a sufficient cleaning method as the scraping may not be done in a well-balanced manner, resulting in tar or carbon sticking to the fitting surface in some areas.

[Object of the present invention] In view of the above-mentioned circumstances, the present invention provides an effective charging lid and means for cleaning the charging lid mounting frame.
This was achieved as a result of various studies, and the structure includes a nozzle header that sprays high-pressure fluid, such as high-pressure water, onto the fitting surfaces of the charging lid and the charging lid mounting frame into which it is fitted. By doing so, it is an object of the present invention to provide a cleaning device that does not have the above-mentioned drawbacks.

[Structure of the present invention] Coal supply that can freely enter and retract into the coke oven through the tip gripping part of the cap remover of the charging lid attached to the coal charging port of the coke oven and the charging lid mounting frame of the coal charging port. An annular nozzle header with a high-pressure fluid injection hole is installed around the outer periphery of the cylinder, and the annular nozzle header installed around the tip gripping part of the cap remover opens horizontally toward the center of the high-pressure fluid. A coke oven apparatus for a coke oven, characterized in that the annular nozzle header provided around the outer periphery of a coal supply cylinder is equipped with a high-pressure fluid injection hole that opens vertically downward. The main topic is the cleaning device for the lid loading device.

[Example] The present invention will be described below based on the drawings. 1st
The figure is an example of a partially cutaway side view of a coal loading car equipped with the cleaning device of the present invention in a state where coal is being fed to a coke oven, and Figure 2 is a side view of a coal loading car equipped with the cleaning device of the present invention in a state where the charging lid is attached after coal feeding is completed. An example of a side view with a portion cut away, and FIG. 3 shows an example of a plan view of the lid removing device.
In the figure, reference numeral 2 denotes a body frame of a coal-loading car that runs above the top 1 of the coke oven, on which a coal-loading hopper 3 and a lower hopper 4 are mounted. The coal loading hopper 3 is provided with a cutting opening at the bottom, and the loaded raw material coal falls into the lower hopper 4 by the operation of the cutting motor 5. A seaper 7 is provided at the bottom of the lower hopper 4 for pumping raw coal by the operation of a hydraulic cylinder 6. The outer cylinder 8b is attached to the arm 1 at the lower end of the lower hopper 4.
A coal supply cylinder 8a that slides up and down is connected by 2, and a fixed dustproof cylinder 9, a fixed outer cylinder 10, and a fireproof cylinder 11 that moves up and down by an arm (not shown) are provided surrounding it. The outer periphery of the supply cylinder 8b is provided with a charging lid that surrounds the charging port 13 when the lower end of the supply cylinder 8b is charged into the charging port 13 for charging raw coal into the coke oven 1. For example, a fourth hole approaches the charging lid mounting frame 14 having a tapered surface 14a to be fitted, and has an injection hole 15b opening vertically downward for injecting high-pressure fluid such as high-pressure water toward the tapered surface 14a. An annular nozzle header 15 as shown in the perspective view is provided. The annular nozzle header 15 is provided on the outer periphery of the supply cylinder (outer cylinder) 8b via a hydraulic cylinder 15a provided around the 8b.
As it descends, it approaches the charging lid mounting frame 14, and finally, by the operation of 15a, it slides up and down on the outer periphery of 8b, and is finely adjusted to the optimal position for spray cleaning of the surface 14a. Ru. Reference numeral 16 denotes a lid removing machine which moves forward and backward in the same direction as the traveling direction of the coal loading car using hydraulic cylinders 17, 18 and an arm 19, and has a gripping part 20 at the tip and attaches the charging lid via a lift magnet 21. The loading/unloading lid 22 that fits into the frame 14 is attached/detached. Further, the lid removing machine has an injection hole below the gripping part 20 that injects high-pressure fluid, such as high-pressure water, toward the surface of the gripped charging lid 22 that fits with the charging lid mounting frame 14. An annular nozzle header 23 as shown in the perspective view of FIG. 5, for example, is provided with an opening in the horizontal direction with a center 23a. Therefore, both the annular nozzle headers 15 and 23 utilize, for example, a high-pressure water generating device (not shown) consisting of a water tank, a high-pressure generating pump, a switching valve, etc., which are already installed on the coal loading car. The high-pressure water is connected to flexible piping. Reference numeral 24 uses a hydraulic cylinder (not shown) to rotate the gripped charging lid 22 in the circumferential direction forward and backward half a turn to clean off tar and carbon adhering to the fitting surface (by spraying high-pressure water). This is a swinging arm for cleaning the small amount of material that remains after washing.
25 is a rail of the coal loading car, and 26 is a running wheel.

The operation of the charging lid and charging lid mounting frame cleaning device of the present invention will be explained according to the diagram.Coke generated in the coke oven is discharged outside the furnace, and the charging port is opened for charging raw coal. In this state, as shown in FIG. 1, the coal supply cylinder 8b is lowered, its tip is charged into the charging port 13, and the coal supply cylinder 8b is surrounded by a hydraulic cylinder 15a provided around the outer circumference of the coal supply cylinder 8b. The installed annular nozzle header 15 is lowered by the operation of the arm 12 and the hydraulic cylinder 15
Due to the adjustment sliding along the outer periphery (collectively indicated by arrows) caused by the operation of a, the charging lid mounting frame 14 is approached and high-pressure water is jetted, cleaning the tapered surface that fits with the charging lid and removing tar. , remove deposits such as carbon. At the same time, the lid removing machine 1 is gripped by the gripping part 20.
The charging lid 22 is removed from the charging port by 6 and is being retracted.
The fitting surface of the coal supply cylinder 8 is also cleaned by spraying high pressure water from another annular nozzle header 23.
Raw material coal is charged into the furnace from the lower hopper 4 via the lower hopper 8b and the lower hopper 8b. For example, high-pressure water with a pressure of 800 to 1000 Kg/cm ² is used at a rate of 1 to 2/min. Incidentally, the cleaning residue such as tar and carbon removed by cleaning is disposed of by a furnace vacuum cleaner (not shown) mounted on the coal loading car during the operation of feeding raw material coal into the next kiln. . When the charging lid and charging lid mounting frame are cleaned as described above, the tip of the coal supply cylinder 8b is pulled out from the charging port 13 by the operation of the arm 12 and moved in the direction of the arrow, as shown in FIG. The loading lid 22, which was held by the tip gripping portion 20 of the lifting and advancing lid removing machine 16, is attached to the charging port 13. The charging lid 22 by the lid removing machine 16 as described above
Attachment/detachment and installation of the coal supply cylinder 8b, lowering and raising of the coal supply cylinder 8b, nozzle headers 15, 2 for high-pressure fluid (for example, high-pressure water)
Operations such as stopping the supply to coal loading vehicle 3 are performed by commands from a normal control mechanism built into the coal loading car.

[Effects of the Invention] As described above, the coke oven charging lid and charging lid mounting frame cleaning device of the present invention provides high pressure fluid, e.g. It has an extremely simple structure with the addition of an annular nozzle header that sprays water for cleaning, making it possible to efficiently clean the charging lid and charging lid mounting frame at the same time as raw coal charging, which was difficult to do in the past. It is possible to do this, and it can greatly contribute to coke oven operation.

[Brief explanation of the drawing]

Figures 1 and 2 are partially cutaway side operational explanatory views of a coal loading car equipped with a charging lid and charging lid mounting frame cleaning device of the present invention, and Figure 3 is a plan view of the lid removal machine. FIG. 4 is a perspective view of an example of an annular nozzle header installed around a coal supply tube, and FIG. 5 is a perspective view of an example of an annular nozzle header installed around a tip gripping part of a lid removing machine. 1... Coke oven top, 2... Coal charging car body frame, 3... Coal charging hopper, 4... Lower hopper, 5... Cutting motor, 6... Hydraulic cylinder, 7... Seaper, 8... Supply Cylinder (8a...inner cylinder, 8b...outer cylinder), 9...fixed dustproof cylinder, 10...
... Fixed outer cylinder, 11 ... Fireproof cylinder, 12 ... Arm,
13...Charging port, 14...Charging lid mounting frame, 15...
...Annular nozzle header, 16...Lid remover, 17,
18...Hydraulic cylinder, 19...Arm, 20
...Gripping part, 21...Lift magnet, 22...
...Charging lid, 23...Annular nozzle header (23a
... same injection hole), 24 ... rocking arm, 25 ...
Coal loading car rail, 26...Coal loading car running wheel.

Claims (1)

[Claims] 1. At the tip gripping part of the lid remover of the charging lid attached to the coal charging port of the coke oven, and on the outer periphery of the coal supply cylinder that can freely come and go into the coke oven by penetrating the charging lid mounting frame of the coal charging port, An annular nozzle header having a high-pressure fluid injection hole opened therein is provided around each header, and the annular nozzle header provided around the tip gripping part of the lid removing machine is provided with a high-pressure fluid injection hole opening horizontally toward the center. Cleaning of a coke oven charging lid device in a coke oven, characterized in that the annular nozzle header installed around the outer periphery of a coal supply cylinder is equipped with a high pressure fluid injection hole that opens vertically downward. Device.