JP2710457B2 - Curved room coke oven equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to the structure and arrangement of a room coke oven facility.

[Prior Art] In a conventional chamber-type coke oven, as shown in FIG. 1, a carbonization chamber and a combustion chamber are alternately arranged to form a furnace group. It is generalized to linearly increase the width of the carbonization chamber from the machine side to the fire extinguishing vehicle side.

Because the conventional coke oven has a straight furnace configuration when viewed from above, the combustion chamber width is reduced linearly from the extruder side to the fire extinguishing car side, opposite to the carbonization chamber width. It has become.

FIG. 4 shows a horizontal section of an example of a carbonization chamber and a combustion chamber of this conventional chamber furnace structure, and FIG. 5 shows an example of the equipment and arrangement thereof (Japanese Patent Publication No. 63-19556).

[Problems to be Solved by the Invention] In the above-mentioned conventional coke oven, in order to make dry distillation in the coking chamber uniform, the fuel gas required to give an appropriate amount of heat corresponding to the width of the coking chamber to each combustion chamber small chamber. The amount to be dispensed and the volume for burning this fuel gas must be given.

It is known that the distribution of the fuel gas in each chamber is controlled by controlling the orifice plate in the under jet pipe, the diameter of the duct in the brick structure, the opening of the flow control plate on the upper part of the sole flute, and the like. It is possible to increase and distribute the fuel gas amount in the combustion chamber in accordance with the increase in the width of the carbonization chamber toward the side.

However, since the width of the combustion chamber is gradually reduced from the extruder side toward the fire extinguishing car side as described above, the volume of the combustion chamber cannot be sufficiently obtained, and it is difficult to optimally apply a calorific value gradient to the carbonization chamber. However, there is a problem that a sufficient amount of sensible heat of the combustion exhaust gas cannot be increased particularly in the end-side combustion chamber small chamber which needs to be increased in heat due to heat radiation or the like.

In addition, in the case of a linear furnace group configuration, the total length of the furnace group may be significantly increased due to an increase in the number of kilns.

The present invention provides a room-type coke oven facility that does not have the problems of the conventional room-type coke oven.

[Means for Solving the Problems] The first invention of the present invention provides a carbonized chamber whose width is increased from the extruder side to the fire extinguishing vehicle side and a combustion chamber whose width is expanded in accordance with the increase in the width of the carbonized chamber. The extruder side and the fire extinguishing car side are formed in an arc shape by arranging in a number of rows in a curved chamber type coke oven facility. According to a second invention, in the curved chamber type coke oven of the first invention, the extruder is movably disposed along the inner peripheral side curved surface, and is arranged along the outer peripheral curved surface.
A curved chamber-type coke oven facility wherein a coke bucket wheel and a coke guide wheel are movably provided. A third aspect of the present invention is the curved-type chamber coke oven of the first aspect, wherein This is a curved-type coke oven facility, which is equipped with a coal pre-treatment facility.

In the present invention, based on a completely different idea that the width of the combustion chamber is increased in accordance with the increase in the width of the carbonization chamber from the extruder side toward the fire extinguishing vehicle side, the coke oven group is changed from the conventional linear type. By changing to a curved type shown in FIG. 2, the above-mentioned conventional problems can be solved.

That is, in the present invention, 1) the width of the combustion chamber is linearly increased with respect to the width of the carbonization chamber from the extruder side to the fire extinguishing car side, and the width of the combustion chamber is increased from the extruder side to the fire extinguishing car side in the combustion chamber. The heat distribution can be ideally set and controlled in accordance with the increase in the width of the carbonization chamber.

Although the expansion amount of the combustion chamber width is appropriately set according to the expansion amount of the carbonization chamber width, the expansion gradient does not necessarily have to correspond one-to-one with the expansion gradient of the carbonization chamber. However, preferably, the gradient is about 1 to 30 degrees with respect to the case of the gradient 0 (in the conventional case, the reverse gradient is -2 to -5 degrees). When this gradient is small, the calorific value distribution can be controlled by increasing the increasing gradient of the fuel gas amount and the combustion amount.

For example, when the kiln center distance is 1300 mm and the width of the carbonization chamber is 420 to 480 mm, the width of the combustion chamber at the end of the fire extinguishing car is 100 mm when the wall thickness of the carbonization chamber is 100 mm. ) Can be expanded by 10% or more compared to the conventional method.

In particular, it is possible to easily increase the amount of heat in the small combustion chamber on the side of the fire extinguishing vehicle, which requires the most amount of heat for heat dissipation measures, and control the amount of heat in an optimum range.

2) The coke oven is formed in a curved shape, and an extruder is placed inside the coke oven, and the radial direction is set to the direction of red hot coke extrusion. it can.

For example, if the number of furnace kilns is 60, the linear site length of the total length of the furnace will be reduced by about 20%.

3) The inside can be used not only as a transfer site for the extruder but also as a site for installing coal pretreatment equipment. As a result, the coke manufacturing equipment group including the coal pre-treatment equipment is all stored in the circular site as compared with the conventional linear furnace group configuration, and the area of the equipment site can be significantly reduced.

[Examples] Next, the features of the present invention will be specifically described with reference to examples shown in the drawings.

1 and 2 show a front view and a cross-sectional view of a room coke oven of this embodiment.

The vertical furnace structure in the present invention is the same as that of the prior art as shown in the front view of FIG. 1, in which carbonization chambers 1 and combustion chambers 2 are alternately arranged, and heat storage for preheating fuel gas and air is provided below these. A chamber 3 and a sole flu 4 for discharging exhaust gas are provided.

As shown in FIG. 2, the combustion chamber 2 is divided into combustion chamber small chambers 5 as in the prior art. The width A of the carbonization chamber 1 and the width B of the combustion chamber increase linearly from the extruder side toward the fire extinguishing vehicle. The width B 'of the combustion chamber small chamber 5 is determined from the combustion chamber width B and the thickness C of the carbonization chamber wall.

Comparing FIG. 2 with FIG. 4 showing a conventional example, in the present invention, the width of the combustion chamber corresponds to the amount of expansion of the width of the carbonization chamber from the extruder side to the fire extinguishing vehicle side. It is expanding on the car side.

The width of the combustion chamber is determined together with the amount of fuel gas from the ordinary carbonization chamber carbonization theory, heat transfer theory, combustion theory, and the like.

Fig. 3 shows the coal pre-treatment facility 15 and the red hot coke fire extinguishing facility
14 shows an example of a plan layout of the entire curved chamber type coke oven equipment of the present invention, including 14; A car 8 and a coke bucket car (or a fire extinguishing car) 9 are installed.

By installing the coal pretreatment equipment in the semicircular space inside, the site space can be effectively used.

Reference numeral 14 denotes a red hot coke dry fire extinguishing system. The red hot coke fire extinguishing equipment will be installed on the extension of the track of the coke guide vehicle (fire extinguishing vehicle).

[Effects of the Invention] In the present invention, in the chamber-type coke oven, the width of the combustion chamber is increased in accordance with the increase in the width of the carbonization chamber from the extruder side to the fire extinguishing car side, and the coke oven group is configured to have a curved shape. By
Since the width of the carbonization chamber is the largest and requires the most amount of heat for heat dissipation, the volume of the combustion chamber can be increased by 10% or more compared to the conventional combustion chamber small chamber that requires the largest volume. The amount of heat supplied to the part can be easily increased.

In addition, an extruder was placed on the inner peripheral side, and the radial direction was the direction of red hot coke extrusion. Thus, the linear distance of the entire length of the furnace group was significantly reduced as compared with the conventional linear furnace group configuration. For example, when the number of furnace kilns is set to 60, there is an effect that the linear site length of the entire furnace group is reduced by about 20%.

[Brief description of the drawings]

FIGS. 1, 2 and 3 are a front view, a horizontal sectional view and an overall layout of a room coke oven according to the present invention, respectively. FIGS. 4 and 5 are horizontal views of a conventional room coke oven according to the prior art. It is a sectional view and a layout drawing of the entire equipment. DESCRIPTION OF SYMBOLS 1 ... Carbonization chamber, 2 ... Combustion chamber 3 ... Thermal storage chamber, 4 ... Sole flu 5 ... Combustion chamber small chamber, 6 ... Extruder 7 ... Ram head, 8 ... Coke guide car 9 ... Coke bucket Car (fire extinguishing vehicle) 10… Extruder track, 11… Cork guide car rail 12… Cork bucket car (fire extinguishing car) track 13… Retaining wall, 14… Dry fire extinguishing equipment 15… Coal preheating equipment, 18 …… Coal storage tank 17 …… Deck, 18 …… Platform

Claims (3)

(57) [Claims] (1) A coke oven group is constituted by arranging a plurality of rows of a carbonization chamber whose width increases from the extruder side toward the fire extinguishing vehicle side and a combustion chamber whose width increases in accordance with the expansion of the carbonization chamber width. And an extruder side and a fire extinguisher side formed in an arc shape. 2. The coke oven equipment according to claim 1, wherein the extruder is movably disposed along the inner peripheral side curved surface, and the coke bucket truck and the coke are provided along the outer peripheral curved surface. A curved chamber type coke oven equipment characterized by a movable guide car. 3. A curved coke oven facility according to claim 1, wherein a coal pretreatment facility is disposed on an inner peripheral side.