JPS6111211Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention provides a tar pan 3 provided between the backstays 2 and 2 of a coke oven 1, and a reciprocating tar pan cleaner 5 provided in a machine frame 4 of a coke extruder or coke guide car. 5 is provided with backstay contact rollers 6, 6, and the same rollers 6,
This invention relates to a tar pan cleaner for a coke oven, in which a tar pan 6 is guided down along backstays 2, 2, and a tip scraper 7 of the cleaner 5 is guided down onto the upper surface of a tar pan 3.

The reciprocating tar pan cleaner 5 includes a guide 9 which is pivotally supported on the machine frame 4 by a horizontal pin 8 and is movable up and down by an elevating device 10.
A tar pan scraper plate 7 is provided at the tip of a reciprocating frame 11 that slides reciprocally along As shown in FIG.
It is provided on the upper surface of the base of the The backstays 2, 2 may have their front surfaces (guide surfaces) supplemented 2' as shown in FIG. Lifting device 10
A lifting arm 13 is provided on a reciprocating shaft 12 provided on a machine frame 4, and the arm 13 and a guide 9 are connected by a link 14. 15 in the figure is a cylinder for operating the reciprocating frame 11, 16 is a cylinder for operating the reciprocating rotation shaft 12, 17 is a guide ring for the reciprocating frame 11, and 18 is a cylinder for operating the reciprocating frame 11.
is the furnace cover sheet surface.

Therefore, the lifting device 10 is operated to raise the guide 9 from the solid line position in FIG. When the rollers 6, 6
comes into contact with the front of the backstays 2, 2. In this state, when the guide 9 is lowered around the pin 8 from the imaginary line position in FIG. In addition, the reciprocating frame 11 is slightly slid to the left and right in the figure. As a result of this sliding, the cylinder 15 contracts while maintaining the rightward pressing force due to the action of a relief valve (not shown), and the scraping plate 7 moves toward the lid seat surface 18.
It comes into contact with the top surface of the tar pan 3 just before. Thereafter, the action of sliding the scraping plate 7 in the direction of arrow a by the operation of the cylinder 15 to scrape off tar and debris on the tar pan 3 onto a conveyor (not shown) is repeated (in that state). (shown in Figure 4).

Conventionally, the lowering position of the upper surface of the tar pan 3 of the scraper 7 was determined by a limit switch between the guide guide 9 and the reciprocating frame 11, so that the scraper 7 could be lowered by the protrusion of the lid seat surface 18 due to thermal deformation. There was a defect in the base of the tar pan 3 where it was difficult to lower the scraper plate 7 close to the seat surface 18 due to the risk of collision with the tar pan 3, which could easily lead to failure in attaching and detaching the furnace cover due to hardening of tar and charcoal.

This proposal was made in view of the above defects, and
Since the present invention is configured as described above, the rollers 6, 6
is guided by the backstays 2, 2 to descend, and the scraper plate 7 is also lowered accordingly, allowing the scraper plate 7 to be lowered onto the tar pan 3 in close proximity to the lid seat surface 18. That is, the backstays 2, 2 and the lid seat surface 18 are equally subjected to thermal deformation, and their relative positions do not change due to thermal deformation. Since there is no change in the positional relationship, as the rollers 6, 6 descend, the scraping plate 7 descends to the upper end of the tar pan 3 in close proximity to the lid sheet surface 18 without fear of contacting or colliding with the lid sheet surface 18. This can improve tar pan cleaning efficiency.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing a tar pan cleaner in a coke oven according to the present invention, FIG. 2 is a side view of the cleaner, FIG. 3 is a side view of the cleaner in operation, and FIG. 4 is an explanatory diagram of the operation. 1...Coke oven, 2...Backstay, 3...
...tar pan, 4...machine frame, 5...reciprocating tar pan cleaner, 6...backstay contact roller, 7...tip scraper plate.

Claims (1)

[Scope of utility model registration request] In the tar pan 3 provided between the backstays 2 and 2 of the coke oven 1 and the reciprocating tar pan cleaner 5 provided in the machine frame 4 of the coke extruder or coke guide car, the backstay contact rollers 6 and 6 are attached to the cleaner 5. A tar pan cleaner for a coke oven, in which rollers 6, 6 are guided down along backstays 2, 2, and a tip scraper 7 of the cleaner 5 is guided down onto the upper surface of a tar pan 3.