JPH057223Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention removes the lump coke that flows out along with the water sealing from the water sealing device of the coke oven riser.
This is a device for preventing clogging of drain pipes and is related to the riser pipe of a coke oven.

(Prior Art) A water sealing device as shown in FIG. 4 for a riser pipe of a coke oven has been proposed in Japanese Utility Model Application Publication No. 140159/1983.

This has a structure in which a canopy 2 is provided at the upper end of the ascending pipe 1 so as to be openable and closable by a vertical opening/closing mechanism 9, and a water sealing device 3 for immersing the lower end of the canopy 2 is provided at the periphery of the upper end of the ascending pipe 1.

This water seal device 3 includes a water storage part 5 that receives and stores water seal water 10 from a water seal supply pipe 4, and a water seal 1 that overflows from the water storage part 5 on the outer periphery of the water storage part 5.
The drain section 8 has a drain port 7 connected to a drain pipe 6 having a water receiving section 12 for receiving water.

(Problem to be solved by the invention) The canopy 2 of the rising pipe 1 is opened periodically to check the state of the fire and to clean the inside of the rising pipe 1 (mainly to remove carbon). When this opening occurs, the light spongy lump coke and dust inside the coke oven are removed from the riser pipe 1.
It is blown up and flows out of the furnace.

A part of the spongy lump coke and dust that flowed out of the furnace fall into the water sealing device 3.

The spongy lump coke and dust that have flowed into the water seal device 3 flow into the drain pipe 6 through the drain port 7 due to the water seal 10 that has overflowed from the water storage section 5 .

As a result, the spongy lump coke and dust clog the drain pipe 6 and block the drain pipe 6, and the water seal 10 overflowing from the drain pipe 6 flows to the top of the coke oven. The bricks at the top of the furnace and equipment surrounding the riser pipe were adversely affected.

In order to solve the above problem, the inventors of the present invention investigated the process by which the drain pipe 6 becomes clogged, and found that spongy lump coke with a size equal to or larger than the inner diameter D of the drain pipe 6 (maximum particle size of about 10 mm or more) was found. It was confirmed that the drain pipe 6 was caught inside (particularly at the bent part), became a core, and the spongy lump coke and dust that subsequently flowed in were successively caught and finally blocked.

Based on this confirmation, the drain port 7 of the water sealing device 3
Of the spongy lump coke that has flowed out, those with a particle size at least equal to or larger than the inner diameter D of the drain pipe 6, preferably larger than or equal to (inner diameter D*0.8) are drained into the drain pipe 6.
It has been found that by removing the water before it flows into the drain pipe 6, clogging of the drain pipe 6 can be completely eliminated.

(Means for solving the problem) The present invention is based on this knowledge,
This means includes a canopy that is openable and closable at the upper end of the coke oven riser pipe, a water sealing device that seals the lower edge of the canopy with water and further has a supply/drainage section, and a water sealing device that has a water supply/drainage section below the drain of the water sealing device. In the riser pipe of a coke oven, which is provided with a water receiving part of a drain pipe for discharging the water seal water flowing out from the water sealing part, an inclination angle of 30 degrees is provided between the water sealing part of the water sealing device and the water receiving part of the drain pipe. This is a riser pipe for a coke oven characterized by being provided with a comb-like lump coke removing member having the above structure.

(Operation) The operation of the present invention will be explained with reference to FIGS. 1 and 2.

By providing a comb-like lump coke removal member 11 inclined at an angle of 30 degrees or more with respect to the horizontal plane between the drain section 8 of the water sealing device 3 of the riser pipe 1 and the upper end water receiving section 12 of the drain pipe 6, The spongy lump coke K flowing out of the water sealing device 3 together with the water sealing water 10 is automatically removed to the outside of the drain pipe 6 by the lump coke removing member 11.

The comb-like shape of the lump coke removing member 11 makes it difficult for water scale and dust from the water sealing water 10 flowing out from the water sealing device 3 to adhere thereto, and enables stable lump coke removal over a long period of time.

Furthermore, if the installation inclination angle θ of the lump coke removing member 11 is less than 30 degrees, the lump coke on the lump coke removing member 11 will not slide down and will remain in that position, requiring a means for removing it. It is.

On the other hand, the inclination of the lump coke removing member 11 may be 30 degrees or more, but the larger the inclination angle, the longer the length of the lump coke removing member 11 must be, which is economically disadvantageous. Therefore, the inclination angle is preferably 40 degrees to 50 degrees.
It's 50 degrees.

(Example) An example of the present invention will be described with reference to FIGS. 1 and 2.

In the figure, 13 is a U-shaped gutter with an open top provided between the drain port 7 of the drain section 8 and the upper end opening of the drain pipe 6, and 11 is the inner diameter between the drain port 7 of the drain section 8 and the inner diameter of the gutter 13. D is a comb-shaped lump coke removal member installed at a position connecting the water receiving part 12 at the upper end of the 25 mm drain pipe 6, and is made of round steel with a diameter of 4 mm arranged at 7 mm intervals, and is arranged downward in the opposite direction of the rising pipe 1. It was installed at an inclination angle θ of 40 degrees.

Note that numerals 1 to 10 and 12 are the same as the numerals in FIG. 4, and their explanation will be omitted here.

Water storage part 5 of water seal device 3 provided at the upper end of riser pipe 1
A water seal 10 is supplied to the water seal through a water seal supply pipe 4.
And the water seal 1 that overflowed from the water storage part 5
0 flows into the drainage section 8.

This water seal 10 flows out from the drain 7, flows through the lump coke removal member 11, the gutter 13, and then flows into the water receiving part 12.
It flows into the drain pipe 6 through the drain pipe 6.

In addition, when the canopy 2 (made of iron plate or cast iron added with antioxidants) is periodically opened, some of the spongy lump coke and dust in the coke oven that are blown up from the riser pipe 1 fall into the water sealing device 3. However, the coke particles flow sequentially through the drain section 8 and the drain port 7 together with the water seal water 10 and reach the lump coke removing member 11 .

This lump coke removal member 11 removes lump-like sponge-like coke having a diameter of 7 mm or more from the flowing water seal water 10.

The removed spongy lump coke slides down on the lump coke removing member 11 in the opposite direction of the rising pipe.
It is discharged from the upper end of the drain pipe 6 (water receiving part 12).

Further, as shown in FIG. 3, the lump coke removing member 11 may be provided inclined in the opposite direction to that in FIG. 1 (or FIG. 2).

In this example, the lump coke removing member 11 has a diameter of 4.
mm round steel arranged at 7 mm intervals, the present invention is not limited to this, and the diameter and spacing of the round steel may be appropriately selected according to the inner diameter of the drain pipe 6. .

Further, it is preferable to provide a storage box (not shown) for receiving the spongy lump coke removed by the lump coke removing member 11 at the fall trajectory of the spongy lump coke.

(Effects of the invention) As is clear from the above explanation, according to the invention,
By automatically removing the lump coke that flows out of the drain pipe system with the water seal water from the water seal device installed at the upper end of the riser pipe, it is possible to completely eliminate blockage of the drain pipe caused by the lump coke. This has the effect that water seal water will not leak from the drain pipe and will not adversely affect the bricks at the top of the coke oven.

[Brief explanation of the drawing]

Figure 1 shows an embodiment of the present invention.
-A-line arrow view, Figure 2 is a plan view, Figure 3 is an enlarged sectional view showing an example in which the lump coke removal member is installed in the opposite direction to that in Figure 1, and Figure 4 is a side view showing a conventional example. FIG. 1 is a rising pipe, 2 is a canopy, 3 is a water seal device, 4 is a water seal water supply pipe, 5 is a water storage part, 6 is a drain pipe, 7 is a drain port, 8 is a drain part, 9 is a vertical opening/closing mechanism, 10 11 is a lump coke removal member, 12 is a water receiving part,
13 is the gutter.

Claims (1)

[Scope of utility model registration request] A canopy that is openable and closable at the upper end of the coke oven riser pipe, a water sealing device that seals the lower edge of the canopy and further has a supply/drainage section, and a water sealing device that has a water supply/drainage section below the drainage section of the watersealing device. A comb tooth having an inclination angle of 30 degrees or more between the drainage part of the water sealing device and the water receiving part of the drain pipe, in a riser pipe of a coke oven that is provided with a water receiving part of a drain pipe for discharging spilled water sealing water. A riser pipe for a coke oven, characterized in that it is provided with a lump coke removal member.