JPH0826324B2 - Method and apparatus for leveling charged coal in coke oven - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a method for leveling charging coal in a coke oven and an apparatus therefor.

<Prior Art> In a coke oven, when the raw material coal is charged into the furnace chamber from a plurality of charging holes, a pile of charging coal is formed below each charging hole. Conventionally, the leveler port provided in the furnace lid on the extrusion side is opened to allow the leveler to enter, and the piles of these charging coals are flattened.

<Problems to be solved by the invention> However, leveling with a leveler has a problem that the charging coal is withdrawn from the leveler port when the leveler returns.
Further, there is a problem that a large amount of gas leaks from around the leveler mouth with the lid closed, causing pollution problems and that good quality coke cannot be obtained.

<Means for Solving the Problems> The present invention relates to a vertical moving body that separately moves in and out a plurality of ridges, which are formed at the time of charging the interior of a furnace chamber of charging coal, into and out of the charging coal holes from the respective charging holes. At the bottom of the vertical moving body, a leveling tool that gradually expands horizontally in the furnace length direction when entering the charging hole is provided to flatten and level several peaks of the charging coal to solve the problem. It is what

<Operation> According to the present invention, after charging the charging coal into the furnace chamber, the vertical moving body is lowered into the furnace chamber through the respective charging holes at the top of the furnace, and the leveling tool provided at the lower part is gradually horizontally expanded in the furnace length direction. Then, several piles formed under the coal charging hole are leveled and aligned, and after the leveling and alignment are completed, the leveling tool is closed and pulled out of the furnace.

<Example> An example will be described below with reference to the drawings.

A vertically extending vertically movable body 6 is supported by a supporting frame 3 protruding below the traveling side end of a coal car 2 traveling on the top of the coke oven 1 and guide rollers 4 and 5 provided on the supporting frame 3. 7 is a cylinder for moving the vertical moving body 6 up and down, 8
Is a rod, 9a and 9b are support members for the guide roller 4, 10 is a guide rail corresponding to the guide roller 4, and 11 and 12 are mounting plates between the members.

The up-and-down moving body 6 is formed by a rectangular tubular body having a quadrangular cross-section protruding from the guide rail 10, and a cylinder 13 is inserted and attached downward at the lower end thereof, and a tip portion of a rod 14 protruding from the cylinder 13 is attached. Pin the intermediate fulcrum 16 of the opening / closing tool 15
17 has stopped.

The opening / closing tool 15 includes support plates 18a and 18b welded and attached to both outer surfaces of the lower end of the vertical moving body 6, intermediate arms 20a and 20b vertically fixed by a pin 19 below the support plates, and a pin 21 at the lower end of the intermediate arm.
The leveling tools 23a, 23b, which are composed of the stopped lower arms 22a, 22b, are vertically provided by welding under the lower arms.

FIG. 1 shows a state in which the piles of charging coal in the furnace chamber 24 are evenly arranged in the right half. However, when the upper and lower moving bodies 6 are lowered and the lower end reaches the middle lower part of the charging hole 25, Since the cylinder 13 is actuated and the rod 14 is paid out, the lower arm 22a, 22b of the opening / closing tool 15 is opened and rotated about the intermediate fulcrum 16 to rotate the leveling tools 23a, 23b in the directions of the pushing side and the extinguishing side, that is, When it spreads in the furnace length direction and reaches below the coal charging hole 25, the leveling tools 23a, 23b expand to the horizontal limit and level the charging coal mountain 26 evenly.

After leveling, the vertical moving body 6 is moved upward to move the leveling tools 23a and 23b in an expanded state to move them apart from the charging surface, reach the middle of the charging hole 25, and gradually return by the opening / closing tool 15 to return. It is folded in a vertical state and pulled out from the charging hole 25.

<Effects of the Invention> In the present invention, as described above, a plurality of charging coal piles formed under each charging hole in the furnace chamber is replaced with a leveler that moves in and out from the leveler port of the furnace lid on the extrusion side. A large amount of gas leaked out from the leveler port because it was made to descend into the furnace chamber from above the holes and flattened evenly by the cooperation of the leveling tools that horizontally expanded in the furnace length direction during the approach. It is possible to prevent the occurrence of pollution and cause no pollution, and there is an effect that excellent coke can be obtained.

In addition, since the furnace length direction of the furnace chamber is closed and leveled, there is an effect that spillage of charging coal outside the furnace chamber can be eliminated.

[Brief description of drawings]

FIG. 1 is a partial longitudinal side view showing a state in which the interior of the furnace chamber is partially flattened, FIG. 2 is a front view of a main portion, FIG. 3 is the same side view, and FIG. 4 is a flattening tool. Enlarged front view showing an example of deployment action 1
Is a coke oven, 2 is a coal car, 3 is a support frame, 4 and 5 are guide rollers, 6 is a vertically moving body, 7 is a cylinder, 8 is the same rod, 9a and 9b are guide roller 4 support members, and 10 is a guide. Rails, 11 and 12 are mounting plates, 13 is a cylinder, 14 is the same rod, 15 is an opening / closing tool, 23a and 23b are leveling tools, 24 is a furnace chamber, and 25 is a carburizing hole.

Claims (2)

[Claims] Claim: What is claimed is: 1. A flattening tool is vertically moved in and out of a plurality of charging coal piles formed when charging the charging coal into the furnace chamber through the plurality of charging holes. Is gradually spread horizontally in the furnace length direction during downward movement into each of the charging holes so that the several peaks are leveled and evened. 2. A leveling tool that horizontally expands gradually in the furnace length direction at the time of downward movement into the carburizing hole is provided at the bottom of each vertical moving body that moves vertically into and out of the carburizing hole. An apparatus for leveling charging coal in a coke oven, which is characterized in that