JPH077298Y2 - Coke oven furnace lid - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a door of a horizontal chamber type coke oven, which has a passage vertically extending through a furnace lid plug protruding into the furnace chamber. The present invention relates to a coke oven furnace lid.

[Conventional technology]

Some coke oven furnace lids that have an equalizing port on the upper side are provided with a leveling port guide in the form of an extension of the leveling port inside the leveling port, such as JP-B-52-9897. Mitsuko Sho46-28
It is known from Japanese Patent No. 905. This leveling guide guides the coal to the charging coal leveling port to the upper part of the furnace lid brick, and it is coked to prevent desorption and scattering at the time of removing and loading the furnace lid, and heat to the furnace lid frame and protective plate above the leveling port. Has the purpose of also serving as protection.

The gas containing tars generated by the thermal decomposition of coal charged in the coke oven carbonization chamber passes through the coal layer and the coke layer from the furnace top space above the carbonization chamber, through the riser pipe and the gas suction main pipe, and then by the blower. Sucked.

Since the generated gas flow is poor near the furnace lid plugs at both ends of the carbonization chamber, excessive pressure is generated near the furnace lid plugs in the initial stage of carbonization, which causes a harmful effect of gas leakage from the furnace lid to the atmosphere.

In order to improve the generated gas flow in the vicinity of the furnace lid plug, it is disclosed in German Patent Specification 489249 to provide a passage (hereinafter referred to as a gas passage) vertically penetrating the inside of the furnace lid plug and connecting to the furnace top space portion above the carbonization chamber. No. In addition, an attempt to provide a passage for passing the generated gas containing tar inside the furnace lid plug is made in Japanese Patent Publication No. 52-6723. However, in the case of a furnace lid having a gas passage and having a leveling port above it, coal enters the passage through the opening in the upper part of the gas passage during the leveling operation during coal charging. Block or shrink the gas passage to significantly impede its function as a gas passage, and since the coal that has entered the guy passage is coked with the progress of carbonization, the coke that had invaded the gas passage when the furnace lid was removed is the platform. If it falls off or scatters on top, or if it does not fall off, coke deposits in the gas passage each time coal is charged, and finally the gas passage is completely closed and the original function of the furnace lid with the gas passage is lost. It had the problem of being lost. In order to prevent the above problems, it is necessary to block the upper part of the gas passage by some method, but in this case the gas collected in the gas passage reaches the furnace top space above the coke oven carbonization chamber. In this case, the gas has to go out of the furnace lid again through the opening of the gas passage and pass through the coal seam, resulting in excessive pressure in the gas passage portion, which leads to gas leakage from the furnace lid to the atmosphere. It had drawbacks.

[Problems to be solved by the device]

An object of the present invention is to prevent clogging of a gas passage by preventing coal from flowing in from the upper portion of the gas passage at the time of charging in a furnace lid having a gas passage, and to easily generate gas generated in the carbonization process in the upper part of a coke oven carbonization chamber. The purpose of the present invention is to provide a coke oven furnace lid that can lead to the furnace top space of the coke oven.

[Means for Solving the Problems]

The present invention is provided with a furnace lid plug portion protruding into the coke oven chamber, forming a passage for raising gas in the plug portion, and having a leveling port at the upper end portion, and communicating with the leveling port, the furnace chamber In a coke oven furnace lid having a leveling guide that protrudes to the bottom, an opening is provided in the bottom surface of the leveling guide, and a guy passage is formed.

[Action]

According to the leveling guide having an opening at the bottom according to the present invention, the opening of the leveling guide is blocked by the moving chute of the extruder (not shown) during the charging of coal, so It is possible to completely prevent the inflow of coal. On the other hand, during dry distillation, the opening of the leveling guide is exposed, so that the gas passing through the gas passage can pass through the opening of the leveling guide to the furnace top space without resistance.

Therefore, the pressure in the gas passage is suppressed to the minimum, and the gas leakage from the furnace lid to the atmosphere can be minimized.

〔Example〕

 Next, an embodiment of the present invention will be described with reference to the drawings.

1 (a) is a side view showing a state in which a furnace lid main body 1 of the embodiment of the present invention is attached to a coke oven, FIG. 1 (b) is a view taken along the line AA of FIG. 1 (a), Figure 2 shows BB of Figure 1 (a).
FIG.

The stopper iron plate 4 on the surface in contact with the furnace chamber charging material 3 is divided into a plurality of pieces in the height direction of the furnace lid, and a space of an appropriate width is provided between the furnace lid heat insulating part 10 and the gas passage 2 It is held on the furnace lid body 1 so that it can be formed.

The gas generated from the furnace chamber charging material 3 by the carbonization effect reaches the gas passage 2 through the gap 11 between the stopper iron plate 4 and the coke furnace carbonization chamber wall 9.

The gas passage 2 is not limited to between the plug iron plate 4 and the coke oven carbonization chamber wall 9, but as described in JP-A-1-33183, the plug iron plate is formed in the shape of a louver, and when charging coal. A method of preventing coal from entering the gas passage and allowing only gas to pass may be used.

A leveling port 5 is provided at the upper end of the furnace lid main body 1, and a leveling port guide 6 that communicates with the leveling port 5 and projects into the furnace chamber is provided. An opening 12 is provided at the bottom of the leveling guide 6. It is necessary that this opening 12 is within the cross section of the gas passage and not inside the furnace from the tip of the moving chute of the extruder (not shown). Further, it is better to disperse the openings 12 into a plurality of openings rather than one large opening for heat protection of the furnace lid frame and the protection plate 8. FIG. 3 shows a state in which the opening 12 of the leveling guide 6 is completely closed because the moving chute 13 of the extruder is placed on the leveling guide 6. In this way, during the leveling operation during the charging of coal, the moving chute 13 opens the opening 12 of the leveling guide 6.
Since the gas is completely blocked, the coal does not flow into the gas passage 2 at all. Moving chute 13 when leveling work is completed
Since the gas is pulled back by the extruder, the opening 12 is exposed, and the gas that has passed through the gas passage 2 can be reasonably guided to the furnace top space portion 14 and the excessive pressure generation in the initial stage of carbonization can be prevented and the gas can be prevented. It is possible to prevent clogging of the passage 2 with coal. Note that FIG. 4 shows a state in which the moving chute 13 of the extruder is inserted into the furnace lid without the leveling guide 6. It can be seen from FIG. 4 that the gas passage 2 is exposed, so that coal flows into the gas passage 2 during the leveling operation during charging of the coal, thereby blocking the gas passage.

[Effect of device]

Since the coke oven furnace lid of the present invention prevents coal from entering the gas passage and can guide the gas collected in the gas passage to the furnace top space without difficulty, the pressure in the gas passage becomes excessive. Since it does not occur, there is an excellent effect that the generated gas leakage from the furnace lid to the atmosphere can be effectively prevented.

[Brief description of drawings]

FIG. 1 (a) is a side view of a coke oven with a furnace lid of an embodiment of the present invention attached, FIG. 1 (b) is a view taken along the line AA of FIG. 1 (a), and FIG. 2 is FIG. FIG. 3A is a plan view showing the state in which the moving chute of the extruder is placed on the leveling guide of the furnace lid of the embodiment of the present invention, and FIG. 4 is the leveling guide. It is a top view which shows the state in which the moving chute of an extruder was inserted in the furnace lid without. 1 is a furnace lid main body, 2 is a gas passage, 3 is a furnace chamber charge, 4 is a stopper plate, 5 is a leveling port, 6 is a leveling port guide, 7 is a leveling frame, 8
Is a protective plate, 9 is the wall of the coke oven carbonization chamber, 10 is the heat insulation part of the furnace lid,
11 is the clearance between the wall of the coke oven carbonization chamber and the stopper plate, 12 is the opening of the leveling guide, 13 is the moving chute of the extruder, and 14 is the top space of the furnace.

Claims (1)

[Scope of utility model registration request] 1. A coke oven chamber is provided with a furnace lid plug portion, a passage for raising a gas is formed in the plug portion, and an upper end portion has a leveling port, which communicates with the leveling port. A coke oven furnace lid having a leveling guide that protrudes into the furnace chamber, wherein a gas passage is formed by providing an opening on the bottom surface of the leveling guide.